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* [RFC 00/20] ns: Introduce Time Namespace
@ 2018-09-19 20:50 Dmitry Safonov
  2018-09-19 20:50 ` [RFC 01/20] " Dmitry Safonov
                   ` (20 more replies)
  0 siblings, 21 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86, Alexey Dobriyan,
	linux-kselftest

Discussions around time virtualization are there for a long time.
The first attempt to implement time namespace was in 2006 by Jeff Dike.
From that time, the topic appears on and off in various discussions.

There are two main use cases for time namespaces:
1. change date and time inside a container;
2. adjust clocks for a container restored from a checkpoint.

“It seems like this might be one of the last major obstacles keeping
migration from being used in production systems, given that not all
containers and connections can be migrated as long as a time dependency
is capable of messing it up.” (by github.com/dav-ell)

The kernel provides access to several clocks: CLOCK_REALTIME,
CLOCK_MONOTONIC, CLOCK_BOOTTIME. Last two clocks are monotonous, but the
start points for them are not defined and are different for each running
system. When a container is migrated from one node to another, all
clocks have to be restored into consistent states; in other words, they
have to continue running from the same points where they have been
dumped.

The main idea behind this patch set is adding per-namespace offsets for
system clocks. When a process in a non-root time namespace requests
time of a clock, a namespace offset is added to the current value of
this clock on a host and the sum is returned.

All offsets are placed on a separate page, this allows up to map it as 
part of vvar into user processes and use offsets from vdso calls.

Now offsets are implemented for CLOCK_MONOTONIC and CLOCK_BOOTTIME
clocks.

Questions to discuss:

* Clone flags exhaustion. Currently there is only one unused clone flag
bit left, and it may be worth to use it to extend arguments of the clone
system call.

* Realtime clock implementation details:
  Is having a simple offset enough?
  What to do when date and time is changed on the host?
  Is there a need to adjust vfs modification and creation times? 
  Implementation for adjtime() syscall.

Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Adrian Reber <adrian@lisas.de>
Cc: Andrei Vagin <avagin@openvz.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "H. Peter Anvin" <hpa@zytor.com> 
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Pavel Emelyanov <xemul@virtuozzo.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: containers@lists.linux-foundation.org
Cc: criu@openvz.org
Cc: linux-api@vger.kernel.org
Cc: x86@kernel.org

Andrei Vagin (12):
  ns: Introduce Time Namespace
  timens: Add timens_offsets
  timens: Introduce CLOCK_MONOTONIC offsets
  timens: Introduce CLOCK_BOOTTIME offset
  timerfd/timens: Take into account ns clock offsets
  kernel: Take into account timens clock offsets in clock_nanosleep
  x86/vdso/timens: Add offsets page in vvar
  x86/vdso: Use set_normalized_timespec() to avoid 32 bit overflow
  posix-timers/timens: Take into account clock offsets
  selftest/timens: Add test for timerfd
  selftest/timens: Add test for clock_nanosleep
  timens/selftest: Add timer offsets test

Dmitry Safonov (8):
  timens: Shift /proc/uptime
  x86/vdso: Restrict splitting vvar vma
  x86/vdso: Purge timens page on setns()/unshare()/clone()
  x86/vdso: Look for vvar vma to purge timens page
  timens: Add align for timens_offsets
  timens: Optimize zero-offsets
  selftest: Add Time Namespace test for supported clocks
  timens/selftest: Add procfs selftest

 arch/Kconfig                                     |   5 +
 arch/x86/Kconfig                                 |   1 +
 arch/x86/entry/vdso/vclock_gettime.c             |  52 +++++
 arch/x86/entry/vdso/vdso-layout.lds.S            |   9 +-
 arch/x86/entry/vdso/vdso2c.c                     |   3 +
 arch/x86/entry/vdso/vma.c                        |  67 +++++++
 arch/x86/include/asm/vdso.h                      |   2 +
 fs/proc/namespaces.c                             |   3 +
 fs/proc/uptime.c                                 |   3 +
 fs/timerfd.c                                     |  16 +-
 include/linux/nsproxy.h                          |   1 +
 include/linux/proc_ns.h                          |   1 +
 include/linux/time_namespace.h                   |  72 +++++++
 include/linux/timens_offsets.h                   |  25 +++
 include/linux/user_namespace.h                   |   1 +
 include/uapi/linux/sched.h                       |   1 +
 init/Kconfig                                     |   8 +
 kernel/Makefile                                  |   1 +
 kernel/fork.c                                    |   3 +-
 kernel/nsproxy.c                                 |  19 +-
 kernel/time/hrtimer.c                            |   8 +
 kernel/time/posix-timers.c                       |  89 ++++++++-
 kernel/time/posix-timers.h                       |   2 +
 kernel/time_namespace.c                          | 230 +++++++++++++++++++++++
 tools/testing/selftests/timens/.gitignore        |   5 +
 tools/testing/selftests/timens/Makefile          |   6 +
 tools/testing/selftests/timens/clock_nanosleep.c |  98 ++++++++++
 tools/testing/selftests/timens/config            |   1 +
 tools/testing/selftests/timens/log.h             |  21 +++
 tools/testing/selftests/timens/procfs.c          | 145 ++++++++++++++
 tools/testing/selftests/timens/timens.c          | 196 +++++++++++++++++++
 tools/testing/selftests/timens/timer.c           |  95 ++++++++++
 tools/testing/selftests/timens/timerfd.c         |  96 ++++++++++
 33 files changed, 1272 insertions(+), 13 deletions(-)
 create mode 100644 include/linux/time_namespace.h
 create mode 100644 include/linux/timens_offsets.h
 create mode 100644 kernel/time_namespace.c
 create mode 100644 tools/testing/selftests/timens/.gitignore
 create mode 100644 tools/testing/selftests/timens/Makefile
 create mode 100644 tools/testing/selftests/timens/clock_nanosleep.c
 create mode 100644 tools/testing/selftests/timens/config
 create mode 100644 tools/testing/selftests/timens/log.h
 create mode 100644 tools/testing/selftests/timens/procfs.c
 create mode 100644 tools/testing/selftests/timens/timens.c
 create mode 100644 tools/testing/selftests/timens/timer.c
 create mode 100644 tools/testing/selftests/timens/timerfd.c

-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 01/20] ns: Introduce Time Namespace
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-28 18:20   ` Laurent Vivier
  2018-09-19 20:50 ` [RFC 02/20] timens: Add timens_offsets Dmitry Safonov
                   ` (19 subsequent siblings)
  20 siblings, 1 reply; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

From: Andrei Vagin <avagin@openvz.org>

Time Namespace isolates clock values.

The kernel provides access to several clocks CLOCK_REALTIME,
CLOCK_MONOTONIC, CLOCK_BOOTTIME, etc.

CLOCK_REALTIME
      System-wide  clock  that  measures real (i.e., wall-clock) time.

CLOCK_MONOTONIC
      Clock that cannot be set and represents monotonic time since
      some  unspecified starting point.

CLOCK_BOOTTIME
      Identical  to  CLOCK_MONOTONIC, except it also includes any time
      that the system is suspended.

For many users, the time namespace means the ability to changes time in
a container (CLOCK_REALTIME).

But in a context of the checkpoint/restore functionality, monotonic and
bootime clocks become interesting. Both clocks are monotonic with
unspecified staring points. These clocks are widely used to measure time
slices, set timers. After restoring or migrating processes, we have to
guarantee that they never go backward. In an ideal case, the behavior of
these clocks should be the same as for a case when a whole system is
suspended. All this means that we need to be able to set CLOCK_MONOTONIC
and CLOCK_BOOTTIME clocks, what can be done by adding per-namespace
offsets for clocks.

Link: https://criu.org/Time_namespace
Link: https://lists.openvz.org/pipermail/criu/2018-June/041504.html
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Co-developed-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 fs/proc/namespaces.c           |   3 +
 include/linux/nsproxy.h        |   1 +
 include/linux/proc_ns.h        |   1 +
 include/linux/time_namespace.h |  59 ++++++++++++++
 include/linux/user_namespace.h |   1 +
 include/uapi/linux/sched.h     |   1 +
 init/Kconfig                   |   7 ++
 kernel/Makefile                |   1 +
 kernel/fork.c                  |   3 +-
 kernel/nsproxy.c               |  19 ++++-
 kernel/time_namespace.c        | 169 +++++++++++++++++++++++++++++++++++++++++
 11 files changed, 262 insertions(+), 3 deletions(-)
 create mode 100644 include/linux/time_namespace.h
 create mode 100644 kernel/time_namespace.c

diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c
index dd2b35f78b09..faee2facb4f3 100644
--- a/fs/proc/namespaces.c
+++ b/fs/proc/namespaces.c
@@ -33,6 +33,9 @@ static const struct proc_ns_operations *ns_entries[] = {
 #ifdef CONFIG_CGROUPS
 	&cgroupns_operations,
 #endif
+#ifdef CONFIG_TIME_NS
+	&timens_operations,
+#endif
 };
 
 static const char *proc_ns_get_link(struct dentry *dentry,
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index 2ae1b1a4d84d..5355229c0ce7 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -35,6 +35,7 @@ struct nsproxy {
 	struct mnt_namespace *mnt_ns;
 	struct pid_namespace *pid_ns_for_children;
 	struct net 	     *net_ns;
+	struct time_namespace *time_ns;
 	struct cgroup_namespace *cgroup_ns;
 };
 extern struct nsproxy init_nsproxy;
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index d31cb6215905..b97b802ab04d 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -32,6 +32,7 @@ extern const struct proc_ns_operations pidns_for_children_operations;
 extern const struct proc_ns_operations userns_operations;
 extern const struct proc_ns_operations mntns_operations;
 extern const struct proc_ns_operations cgroupns_operations;
+extern const struct proc_ns_operations timens_operations;
 
 /*
  * We always define these enumerators
diff --git a/include/linux/time_namespace.h b/include/linux/time_namespace.h
new file mode 100644
index 000000000000..bf98f35efe07
--- /dev/null
+++ b/include/linux/time_namespace.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_TIMENS_H
+#define _LINUX_TIMENS_H
+
+
+#include <linux/sched.h>
+#include <linux/kref.h>
+#include <linux/nsproxy.h>
+#include <linux/ns_common.h>
+#include <linux/err.h>
+
+struct user_namespace;
+extern struct user_namespace init_user_ns;
+
+struct time_namespace {
+	struct kref kref;
+	struct user_namespace *user_ns;
+	struct ucounts *ucounts;
+	struct ns_common ns;
+} __randomize_layout;
+extern struct time_namespace init_time_ns;
+
+#ifdef CONFIG_TIME_NS
+static inline struct time_namespace *get_time_ns(struct time_namespace *ns)
+{
+	kref_get(&ns->kref);
+	return ns;
+}
+
+extern struct time_namespace *copy_time_ns(unsigned long flags,
+	struct user_namespace *user_ns, struct time_namespace *old_ns);
+extern void free_time_ns(struct kref *kref);
+
+static inline void put_time_ns(struct time_namespace *ns)
+{
+	kref_put(&ns->kref, free_time_ns);
+}
+
+#else
+static inline void get_time_ns(struct time_namespace *ns)
+{
+}
+
+static inline void put_time_ns(struct time_namespace *ns)
+{
+}
+
+static inline struct time_namespace *copy_time_ns(unsigned long flags,
+	struct user_namespace *user_ns, struct time_namespace *old_ns)
+{
+	if (flags & CLONE_NEWTIME)
+		return ERR_PTR(-EINVAL);
+
+	return old_ns;
+}
+
+#endif
+
+#endif /* _LINUX_TIMENS_H */
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index d6b74b91096b..bf84f93dc411 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -45,6 +45,7 @@ enum ucount_type {
 	UCOUNT_NET_NAMESPACES,
 	UCOUNT_MNT_NAMESPACES,
 	UCOUNT_CGROUP_NAMESPACES,
+	UCOUNT_TIME_NAMESPACES,
 #ifdef CONFIG_INOTIFY_USER
 	UCOUNT_INOTIFY_INSTANCES,
 	UCOUNT_INOTIFY_WATCHES,
diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h
index 22627f80063e..adffac53c76e 100644
--- a/include/uapi/linux/sched.h
+++ b/include/uapi/linux/sched.h
@@ -10,6 +10,7 @@
 #define CLONE_FS	0x00000200	/* set if fs info shared between processes */
 #define CLONE_FILES	0x00000400	/* set if open files shared between processes */
 #define CLONE_SIGHAND	0x00000800	/* set if signal handlers and blocked signals shared */
+#define CLONE_NEWTIME	0x00001000	/* New time namespace */
 #define CLONE_PTRACE	0x00002000	/* set if we want to let tracing continue on the child too */
 #define CLONE_VFORK	0x00004000	/* set if the parent wants the child to wake it up on mm_release */
 #define CLONE_PARENT	0x00008000	/* set if we want to have the same parent as the cloner */
diff --git a/init/Kconfig b/init/Kconfig
index 1e234e2f1cba..dc2b40f7d73f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -927,6 +927,13 @@ config UTS_NS
 	  In this namespace tasks see different info provided with the
 	  uname() system call
 
+config TIME_NS
+	bool "TIME namespace"
+	default y
+	help
+	  In this namespace boottime and monotonic clocks can be set.
+	  The time will keep going with the same pace.
+
 config IPC_NS
 	bool "IPC namespace"
 	depends on (SYSVIPC || POSIX_MQUEUE)
diff --git a/kernel/Makefile b/kernel/Makefile
index 7a63d567fdb5..bc92feb6987d 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -70,6 +70,7 @@ obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o
 obj-$(CONFIG_COMPAT) += compat.o
 obj-$(CONFIG_CGROUPS) += cgroup/
 obj-$(CONFIG_UTS_NS) += utsname.o
+obj-$(CONFIG_TIME_NS) += time_namespace.o
 obj-$(CONFIG_USER_NS) += user_namespace.o
 obj-$(CONFIG_PID_NS) += pid_namespace.o
 obj-$(CONFIG_IKCONFIG) += configs.o
diff --git a/kernel/fork.c b/kernel/fork.c
index f0b58479534f..384f88912b63 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2365,7 +2365,8 @@ static int check_unshare_flags(unsigned long unshare_flags)
 	if (unshare_flags & ~(CLONE_THREAD|CLONE_FS|CLONE_NEWNS|CLONE_SIGHAND|
 				CLONE_VM|CLONE_FILES|CLONE_SYSVSEM|
 				CLONE_NEWUTS|CLONE_NEWIPC|CLONE_NEWNET|
-				CLONE_NEWUSER|CLONE_NEWPID|CLONE_NEWCGROUP))
+				CLONE_NEWUSER|CLONE_NEWPID|CLONE_NEWCGROUP|
+				CLONE_NEWTIME))
 		return -EINVAL;
 	/*
 	 * Not implemented, but pretend it works if there is nothing
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
index f6c5d330059a..5e482e538365 100644
--- a/kernel/nsproxy.c
+++ b/kernel/nsproxy.c
@@ -22,6 +22,7 @@
 #include <linux/pid_namespace.h>
 #include <net/net_namespace.h>
 #include <linux/ipc_namespace.h>
+#include <linux/time_namespace.h>
 #include <linux/proc_ns.h>
 #include <linux/file.h>
 #include <linux/syscalls.h>
@@ -44,6 +45,9 @@ struct nsproxy init_nsproxy = {
 #ifdef CONFIG_CGROUPS
 	.cgroup_ns		= &init_cgroup_ns,
 #endif
+#ifdef CONFIG_TIME_NS
+	.time_ns		= &init_time_ns,
+#endif
 };
 
 static inline struct nsproxy *create_nsproxy(void)
@@ -110,8 +114,16 @@ static struct nsproxy *create_new_namespaces(unsigned long flags,
 		goto out_net;
 	}
 
+	new_nsp->time_ns = copy_time_ns(flags, user_ns, tsk->nsproxy->time_ns);
+	if (IS_ERR(new_nsp->time_ns)) {
+		err = PTR_ERR(new_nsp->time_ns);
+		goto out_time;
+	}
+
 	return new_nsp;
 
+out_time:
+	put_net(new_nsp->net_ns);
 out_net:
 	put_cgroup_ns(new_nsp->cgroup_ns);
 out_cgroup:
@@ -143,7 +155,7 @@ int copy_namespaces(unsigned long flags, struct task_struct *tsk)
 
 	if (likely(!(flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC |
 			      CLONE_NEWPID | CLONE_NEWNET |
-			      CLONE_NEWCGROUP)))) {
+			      CLONE_NEWCGROUP | CLONE_NEWTIME)))) {
 		get_nsproxy(old_ns);
 		return 0;
 	}
@@ -180,6 +192,8 @@ void free_nsproxy(struct nsproxy *ns)
 		put_ipc_ns(ns->ipc_ns);
 	if (ns->pid_ns_for_children)
 		put_pid_ns(ns->pid_ns_for_children);
+	if (ns->time_ns)
+		put_time_ns(ns->time_ns);
 	put_cgroup_ns(ns->cgroup_ns);
 	put_net(ns->net_ns);
 	kmem_cache_free(nsproxy_cachep, ns);
@@ -196,7 +210,8 @@ int unshare_nsproxy_namespaces(unsigned long unshare_flags,
 	int err = 0;
 
 	if (!(unshare_flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC |
-			       CLONE_NEWNET | CLONE_NEWPID | CLONE_NEWCGROUP)))
+			       CLONE_NEWNET | CLONE_NEWPID | CLONE_NEWCGROUP |
+			       CLONE_NEWTIME)))
 		return 0;
 
 	user_ns = new_cred ? new_cred->user_ns : current_user_ns();
diff --git a/kernel/time_namespace.c b/kernel/time_namespace.c
new file mode 100644
index 000000000000..902cd9c22159
--- /dev/null
+++ b/kernel/time_namespace.c
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Author: Andrei Vagin <avagin@openvz.org>
+ * Author: Dmitry Safonov <dima@arista.com>
+ */
+
+#include <linux/export.h>
+#include <linux/time.h>
+#include <linux/time_namespace.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/cred.h>
+#include <linux/user_namespace.h>
+#include <linux/proc_ns.h>
+#include <linux/sched/task.h>
+
+static struct ucounts *inc_time_namespaces(struct user_namespace *ns)
+{
+	return inc_ucount(ns, current_euid(), UCOUNT_TIME_NAMESPACES);
+}
+
+static void dec_time_namespaces(struct ucounts *ucounts)
+{
+	dec_ucount(ucounts, UCOUNT_TIME_NAMESPACES);
+}
+
+static struct time_namespace *create_time_ns(void)
+{
+	struct time_namespace *time_ns;
+
+	time_ns = kmalloc(sizeof(struct time_namespace), GFP_KERNEL);
+	if (time_ns)
+		kref_init(&time_ns->kref);
+	return time_ns;
+}
+
+/*
+ * Clone a new ns copying an original timename, setting refcount to 1
+ * @old_ns: namespace to clone
+ * Return ERR_PTR(-ENOMEM) on error (failure to allocate), new ns otherwise
+ */
+static struct time_namespace *clone_time_ns(struct user_namespace *user_ns,
+					  struct time_namespace *old_ns)
+{
+	struct time_namespace *ns;
+	struct ucounts *ucounts;
+	int err;
+
+	err = -ENOSPC;
+	ucounts = inc_time_namespaces(user_ns);
+	if (!ucounts)
+		goto fail;
+
+	err = -ENOMEM;
+	ns = create_time_ns();
+	if (!ns)
+		goto fail_dec;
+
+	err = ns_alloc_inum(&ns->ns);
+	if (err)
+		goto fail_free;
+
+	ns->ucounts = ucounts;
+	ns->ns.ops = &timens_operations;
+	ns->user_ns = get_user_ns(user_ns);
+	return ns;
+
+fail_free:
+	kfree(ns);
+fail_dec:
+	dec_time_namespaces(ucounts);
+fail:
+	return ERR_PTR(err);
+}
+
+/*
+ * Copy task tsk's time namespace, or clone it if flags
+ * specifies CLONE_NEWTIME.  In latter case, changes to the
+ * timename of this process won't be seen by parent, and vice
+ * versa.
+ */
+struct time_namespace *copy_time_ns(unsigned long flags,
+	struct user_namespace *user_ns, struct time_namespace *old_ns)
+{
+	if (!(flags & CLONE_NEWTIME))
+		return get_time_ns(old_ns);
+
+	return clone_time_ns(user_ns, old_ns);
+}
+
+void free_time_ns(struct kref *kref)
+{
+	struct time_namespace *ns;
+
+	ns = container_of(kref, struct time_namespace, kref);
+	dec_time_namespaces(ns->ucounts);
+	put_user_ns(ns->user_ns);
+	ns_free_inum(&ns->ns);
+	kfree(ns);
+}
+
+static inline struct time_namespace *to_time_ns(struct ns_common *ns)
+{
+	return container_of(ns, struct time_namespace, ns);
+}
+
+static struct ns_common *timens_get(struct task_struct *task)
+{
+	struct time_namespace *ns = NULL;
+	struct nsproxy *nsproxy;
+
+	task_lock(task);
+	nsproxy = task->nsproxy;
+	if (nsproxy) {
+		ns = nsproxy->time_ns;
+		get_time_ns(ns);
+	}
+	task_unlock(task);
+
+	return ns ? &ns->ns : NULL;
+}
+
+static void timens_put(struct ns_common *ns)
+{
+	put_time_ns(to_time_ns(ns));
+}
+
+static int timens_install(struct nsproxy *nsproxy, struct ns_common *new)
+{
+	struct time_namespace *ns = to_time_ns(new);
+
+	if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN) ||
+	    !ns_capable(current_user_ns(), CAP_SYS_ADMIN))
+		return -EPERM;
+
+	get_time_ns(ns);
+	put_time_ns(nsproxy->time_ns);
+	nsproxy->time_ns = ns;
+	return 0;
+}
+
+static struct user_namespace *timens_owner(struct ns_common *ns)
+{
+	return to_time_ns(ns)->user_ns;
+}
+
+const struct proc_ns_operations timens_operations = {
+	.name		= "time",
+	.type		= CLONE_NEWTIME,
+	.get		= timens_get,
+	.put		= timens_put,
+	.install	= timens_install,
+	.owner		= timens_owner,
+};
+
+struct time_namespace init_time_ns = {
+	.kref = KREF_INIT(2),
+	.user_ns = &init_user_ns,
+	.ns.inum = PROC_UTS_INIT_INO,
+#ifdef CONFIG_UTS_NS
+	.ns.ops = &timens_operations,
+#endif
+};
+
+static int __init time_ns_init(void)
+{
+	return 0;
+}
+subsys_initcall(time_ns_init);
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 02/20] timens: Add timens_offsets
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
  2018-09-19 20:50 ` [RFC 01/20] " Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-20 18:45   ` Cyrill Gorcunov
  2018-09-19 20:50 ` [RFC 03/20] timens: Introduce CLOCK_MONOTONIC offsets Dmitry Safonov
                   ` (18 subsequent siblings)
  20 siblings, 1 reply; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

From: Andrei Vagin <avagin@openvz.org>

Introduce offsets for time namespace. They will contain adjustment
needed to convert clocks to/from host's.

Allocate one page for each time namespace that will be premapped into
userspace with vvar pages.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 include/linux/time_namespace.h |  2 ++
 include/linux/timens_offsets.h |  8 ++++++++
 kernel/time_namespace.c        | 14 ++++++++++++--
 3 files changed, 22 insertions(+), 2 deletions(-)
 create mode 100644 include/linux/timens_offsets.h

diff --git a/include/linux/time_namespace.h b/include/linux/time_namespace.h
index bf98f35efe07..4960c54f1b33 100644
--- a/include/linux/time_namespace.h
+++ b/include/linux/time_namespace.h
@@ -8,6 +8,7 @@
 #include <linux/nsproxy.h>
 #include <linux/ns_common.h>
 #include <linux/err.h>
+#include <linux/timens_offsets.h>
 
 struct user_namespace;
 extern struct user_namespace init_user_ns;
@@ -17,6 +18,7 @@ struct time_namespace {
 	struct user_namespace *user_ns;
 	struct ucounts *ucounts;
 	struct ns_common ns;
+	struct timens_offsets *offsets;
 } __randomize_layout;
 extern struct time_namespace init_time_ns;
 
diff --git a/include/linux/timens_offsets.h b/include/linux/timens_offsets.h
new file mode 100644
index 000000000000..7d7cb68ea778
--- /dev/null
+++ b/include/linux/timens_offsets.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_TIME_OFFSETS_H
+#define _LINUX_TIME_OFFSETS_H
+
+struct timens_offsets {
+};
+
+#endif
diff --git a/kernel/time_namespace.c b/kernel/time_namespace.c
index 902cd9c22159..a985529754b4 100644
--- a/kernel/time_namespace.c
+++ b/kernel/time_namespace.c
@@ -13,6 +13,7 @@
 #include <linux/user_namespace.h>
 #include <linux/proc_ns.h>
 #include <linux/sched/task.h>
+#include <linux/mm.h>
 
 static struct ucounts *inc_time_namespaces(struct user_namespace *ns)
 {
@@ -44,6 +45,7 @@ static struct time_namespace *clone_time_ns(struct user_namespace *user_ns,
 {
 	struct time_namespace *ns;
 	struct ucounts *ucounts;
+	struct page *page;
 	int err;
 
 	err = -ENOSPC;
@@ -56,15 +58,22 @@ static struct time_namespace *clone_time_ns(struct user_namespace *user_ns,
 	if (!ns)
 		goto fail_dec;
 
+	page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+	if (!page)
+		goto fail_free;
+	ns->offsets = page_address(page);
+	BUILD_BUG_ON(sizeof(*ns->offsets) > PAGE_SIZE);
+
 	err = ns_alloc_inum(&ns->ns);
 	if (err)
-		goto fail_free;
+		goto fail_page;
 
 	ns->ucounts = ucounts;
 	ns->ns.ops = &timens_operations;
 	ns->user_ns = get_user_ns(user_ns);
 	return ns;
-
+fail_page:
+	free_page((unsigned long)ns->offsets);
 fail_free:
 	kfree(ns);
 fail_dec:
@@ -93,6 +102,7 @@ void free_time_ns(struct kref *kref)
 	struct time_namespace *ns;
 
 	ns = container_of(kref, struct time_namespace, kref);
+	free_page((unsigned long)ns->offsets);
 	dec_time_namespaces(ns->ucounts);
 	put_user_ns(ns->user_ns);
 	ns_free_inum(&ns->ns);
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 03/20] timens: Introduce CLOCK_MONOTONIC offsets
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
  2018-09-19 20:50 ` [RFC 01/20] " Dmitry Safonov
  2018-09-19 20:50 ` [RFC 02/20] timens: Add timens_offsets Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 04/20] timens: Introduce CLOCK_BOOTTIME offset Dmitry Safonov
                   ` (17 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

From: Andrei Vagin <avagin@openvz.org>

Adds monotonic time virtualisation for time namespace.
Provide clock_set() API to set monotonic time inside ns.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Co-developed-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 include/linux/timens_offsets.h |  1 +
 kernel/time/posix-timers.c     | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/include/linux/timens_offsets.h b/include/linux/timens_offsets.h
index 7d7cb68ea778..248b0c0bb92a 100644
--- a/include/linux/timens_offsets.h
+++ b/include/linux/timens_offsets.h
@@ -3,6 +3,7 @@
 #define _LINUX_TIME_OFFSETS_H
 
 struct timens_offsets {
+	struct timespec64  monotonic_time_offset;
 };
 
 #endif
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 4b9127e95430..3c1f98760dec 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -51,6 +51,7 @@
 #include <linux/hashtable.h>
 #include <linux/compat.h>
 #include <linux/nospec.h>
+#include <linux/time_namespace.h>
 
 #include "timekeeping.h"
 #include "posix-timers.h"
@@ -205,12 +206,40 @@ static int posix_clock_realtime_adj(const clockid_t which_clock,
 	return do_adjtimex(t);
 }
 
+static void timens_adjust_monotonic(struct timespec64 *tp)
+{
+	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
+
+	if (ns_offsets)
+		*tp = timespec64_add(*tp, ns_offsets->monotonic_time_offset);
+}
+
+static int posix_ktime_set_ts(clockid_t which_clock,
+				const struct timespec64 *tp)
+{
+	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
+	struct timespec64 ktp;
+
+	if (!ns_capable(current->nsproxy->time_ns->user_ns, CAP_SYS_TIME))
+		return -EPERM;
+
+	ktime_get_ts64(&ktp);
+
+	if (ns_offsets)
+		ns_offsets->monotonic_time_offset = timespec64_sub(*tp, ktp);
+	else
+		return -EINVAL;
+
+	return 0;
+}
+
 /*
  * Get monotonic time for posix timers
  */
 static int posix_ktime_get_ts(clockid_t which_clock, struct timespec64 *tp)
 {
 	ktime_get_ts64(tp);
+	timens_adjust_monotonic(tp);
 	return 0;
 }
 
@@ -220,6 +249,7 @@ static int posix_ktime_get_ts(clockid_t which_clock, struct timespec64 *tp)
 static int posix_get_monotonic_raw(clockid_t which_clock, struct timespec64 *tp)
 {
 	ktime_get_raw_ts64(tp);
+	timens_adjust_monotonic(tp);
 	return 0;
 }
 
@@ -234,6 +264,7 @@ static int posix_get_monotonic_coarse(clockid_t which_clock,
 						struct timespec64 *tp)
 {
 	ktime_get_coarse_ts64(tp);
+	timens_adjust_monotonic(tp);
 	return 0;
 }
 
@@ -1283,6 +1314,7 @@ static const struct k_clock clock_realtime = {
 static const struct k_clock clock_monotonic = {
 	.clock_getres		= posix_get_hrtimer_res,
 	.clock_get		= posix_ktime_get_ts,
+	.clock_set		= posix_ktime_set_ts,
 	.nsleep			= common_nsleep,
 	.timer_create		= common_timer_create,
 	.timer_set		= common_timer_set,
@@ -1298,6 +1330,7 @@ static const struct k_clock clock_monotonic = {
 static const struct k_clock clock_monotonic_raw = {
 	.clock_getres		= posix_get_hrtimer_res,
 	.clock_get		= posix_get_monotonic_raw,
+	.clock_set		= posix_ktime_set_ts,
 };
 
 static const struct k_clock clock_realtime_coarse = {
@@ -1308,6 +1341,7 @@ static const struct k_clock clock_realtime_coarse = {
 static const struct k_clock clock_monotonic_coarse = {
 	.clock_getres		= posix_get_coarse_res,
 	.clock_get		= posix_get_monotonic_coarse,
+	.clock_set		= posix_ktime_set_ts,
 };
 
 static const struct k_clock clock_tai = {
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 04/20] timens: Introduce CLOCK_BOOTTIME offset
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (2 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 03/20] timens: Introduce CLOCK_MONOTONIC offsets Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-30  3:18   ` [LKP] [timens] 3cc8de9dcb: RIP:posix_get_boottime kernel test robot
  2018-09-19 20:50 ` [RFC 05/20] timerfd/timens: Take into account ns clock offsets Dmitry Safonov
                   ` (16 subsequent siblings)
  20 siblings, 1 reply; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

From: Andrei Vagin <avagin@openvz.org>

Adds boottime virtualisation for time namespace.
Provide clock_set() API to set boottime clock inside ns.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 include/linux/timens_offsets.h |  1 +
 kernel/time/posix-timers.c     | 26 ++++++++++++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/include/linux/timens_offsets.h b/include/linux/timens_offsets.h
index 248b0c0bb92a..777530c46852 100644
--- a/include/linux/timens_offsets.h
+++ b/include/linux/timens_offsets.h
@@ -4,6 +4,7 @@
 
 struct timens_offsets {
 	struct timespec64  monotonic_time_offset;
+	struct timespec64  monotonic_boottime_offset;
 };
 
 #endif
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 3c1f98760dec..d38835a21c5d 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -276,7 +276,32 @@ static int posix_get_coarse_res(const clockid_t which_clock, struct timespec64 *
 
 static int posix_get_boottime(const clockid_t which_clock, struct timespec64 *tp)
 {
+	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
+
 	ktime_get_boottime_ts64(tp);
+
+	if (!ns_offsets)
+		return 0;
+
+	*tp = timespec64_add(*tp, ns_offsets->monotonic_boottime_offset);
+
+	return 0;
+}
+
+static int posix_set_boottime(clockid_t which_clock, const struct timespec64 *tp)
+{
+	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
+	struct timespec64 ktp;
+
+	if (!ns_capable(current->nsproxy->time_ns->user_ns, CAP_SYS_TIME))
+		return -EPERM;
+
+	ktime_get_boottime_ts64(&ktp);
+
+	if (ns_offsets)
+		ns_offsets->monotonic_boottime_offset = timespec64_sub(*tp, ktp);
+	else
+		return -EINVAL;
 	return 0;
 }
 
@@ -1362,6 +1387,7 @@ static const struct k_clock clock_tai = {
 static const struct k_clock clock_boottime = {
 	.clock_getres		= posix_get_hrtimer_res,
 	.clock_get		= posix_get_boottime,
+	.clock_set		= posix_set_boottime,
 	.nsleep			= common_nsleep,
 	.timer_create		= common_timer_create,
 	.timer_set		= common_timer_set,
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 05/20] timerfd/timens: Take into account ns clock offsets
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (3 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 04/20] timens: Introduce CLOCK_BOOTTIME offset Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 06/20] kernel: Take into account timens clock offsets in clock_nanosleep Dmitry Safonov
                   ` (15 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andrei Vagin, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, Eric W. Biederman, H. Peter Anvin, Ingo Molnar,
	Jeff Dike, Oleg Nesterov, Pavel Emelyanov, Shuah Khan,
	Thomas Gleixner, containers, criu, linux-api, x86

From: Andrei Vagin <avagin@gmail.com>

Make timerfd respect timens offsets.
Provide two helpers timens_clock_to_host() timens_clock_from_host() that
are useful to wire up timens to different kernel subsystems.
Following patches will use timens_clock_from_host(), added here for
completeness.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Co-developed-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 fs/timerfd.c                   | 16 +++++++++++-----
 include/linux/time_namespace.h | 11 +++++++++++
 kernel/time_namespace.c        | 39 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 61 insertions(+), 5 deletions(-)

diff --git a/fs/timerfd.c b/fs/timerfd.c
index d69ad801eb80..001ab7a0fd8b 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -26,6 +26,7 @@
 #include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/rcupdate.h>
+#include <linux/time_namespace.h>
 
 struct timerfd_ctx {
 	union {
@@ -433,22 +434,27 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
 }
 
 static int do_timerfd_settime(int ufd, int flags, 
-		const struct itimerspec64 *new,
+		struct itimerspec64 *new,
 		struct itimerspec64 *old)
 {
 	struct fd f;
 	struct timerfd_ctx *ctx;
 	int ret;
 
-	if ((flags & ~TFD_SETTIME_FLAGS) ||
-		 !itimerspec64_valid(new))
-		return -EINVAL;
-
 	ret = timerfd_fget(ufd, &f);
 	if (ret)
 		return ret;
 	ctx = f.file->private_data;
 
+	if (flags & TFD_TIMER_ABSTIME)
+		timens_clock_to_host(ctx->clockid, &new->it_value);
+
+	if ((flags & ~TFD_SETTIME_FLAGS) ||
+		 !itimerspec64_valid(new)) {
+		fdput(f);
+		return -EINVAL;
+	}
+
 	if (isalarm(ctx) && !capable(CAP_WAKE_ALARM)) {
 		fdput(f);
 		return -EPERM;
diff --git a/include/linux/time_namespace.h b/include/linux/time_namespace.h
index 4960c54f1b33..910711d1c39d 100644
--- a/include/linux/time_namespace.h
+++ b/include/linux/time_namespace.h
@@ -38,6 +38,9 @@ static inline void put_time_ns(struct time_namespace *ns)
 	kref_put(&ns->kref, free_time_ns);
 }
 
+void timens_clock_to_host(int clockid, struct timespec64 *val);
+void timens_clock_from_host(int clockid, struct timespec64 *val);
+
 #else
 static inline void get_time_ns(struct time_namespace *ns)
 {
@@ -56,6 +59,14 @@ static inline struct time_namespace *copy_time_ns(unsigned long flags,
 	return old_ns;
 }
 
+static inline void timens_clock_to_host(int clockid, struct timespec64 *val)
+{
+}
+
+static inline void timens_clock_from_host(int clockid, struct timespec64 *val)
+{
+}
+
 #endif
 
 #endif /* _LINUX_TIMENS_H */
diff --git a/kernel/time_namespace.c b/kernel/time_namespace.c
index a985529754b4..f96871cb8124 100644
--- a/kernel/time_namespace.c
+++ b/kernel/time_namespace.c
@@ -154,6 +154,45 @@ static struct user_namespace *timens_owner(struct ns_common *ns)
 	return to_time_ns(ns)->user_ns;
 }
 
+static void clock_timens_fixup(int clockid, struct timespec64 *val, bool to_ns)
+{
+	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
+	struct timespec64 *offsets = NULL;
+
+	if (!ns_offsets)
+		return;
+
+	if (val->tv_sec == 0 && val->tv_nsec == 0)
+		return;
+
+	switch (clockid) {
+	case CLOCK_MONOTONIC:
+		offsets = &ns_offsets->monotonic_time_offset;
+		break;
+	case CLOCK_BOOTTIME:
+		offsets = &ns_offsets->monotonic_boottime_offset;
+		break;
+	}
+
+	if (!offsets)
+		return;
+
+	if (to_ns)
+		*val = timespec64_add(*val, *offsets);
+	else
+		*val = timespec64_sub(*val, *offsets);
+}
+
+void timens_clock_to_host(int clockid, struct timespec64 *val)
+{
+	clock_timens_fixup(clockid, val, false);
+}
+
+void timens_clock_from_host(int clockid, struct timespec64 *val)
+{
+	clock_timens_fixup(clockid, val, true);
+}
+
 const struct proc_ns_operations timens_operations = {
 	.name		= "time",
 	.type		= CLONE_NEWTIME,
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 06/20] kernel: Take into account timens clock offsets in clock_nanosleep
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (4 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 05/20] timerfd/timens: Take into account ns clock offsets Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 07/20] timens: Shift /proc/uptime Dmitry Safonov
                   ` (14 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andrei Vagin, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, Eric W. Biederman, H. Peter Anvin, Ingo Molnar,
	Jeff Dike, Oleg Nesterov, Pavel Emelyanov, Shuah Khan,
	Thomas Gleixner, containers, criu, linux-api, x86

From: Andrei Vagin <avagin@gmail.com>

Wire up clock_nanosleep to timens offsets.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 kernel/time/hrtimer.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index e1a549c9e399..4fe80c1325b2 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -51,6 +51,7 @@
 #include <linux/timer.h>
 #include <linux/freezer.h>
 #include <linux/compat.h>
+#include <linux/time_namespace.h>
 
 #include <linux/uaccess.h>
 
@@ -1730,9 +1731,16 @@ long hrtimer_nanosleep(const struct timespec64 *rqtp,
 {
 	struct restart_block *restart;
 	struct hrtimer_sleeper t;
+	struct timespec64 tp;
 	int ret = 0;
 	u64 slack;
 
+	if (!(mode & HRTIMER_MODE_REL)) {
+		tp = *rqtp;
+		rqtp = &tp;
+		timens_clock_to_host(clockid, &tp);
+	}
+
 	slack = current->timer_slack_ns;
 	if (dl_task(current) || rt_task(current))
 		slack = 0;
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 07/20] timens: Shift /proc/uptime
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (5 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 06/20] kernel: Take into account timens clock offsets in clock_nanosleep Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 08/20] x86/vdso: Restrict splitting vvar vma Dmitry Safonov
                   ` (13 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86, Alexey Dobriyan

Respect boottime inside time namespace for /proc/uptime

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 fs/proc/uptime.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
index a4c2791ab70b..4421ec058472 100644
--- a/fs/proc/uptime.c
+++ b/fs/proc/uptime.c
@@ -5,6 +5,7 @@
 #include <linux/sched.h>
 #include <linux/seq_file.h>
 #include <linux/time.h>
+#include <linux/time_namespace.h>
 #include <linux/kernel_stat.h>
 
 static int uptime_proc_show(struct seq_file *m, void *v)
@@ -20,6 +21,8 @@ static int uptime_proc_show(struct seq_file *m, void *v)
 		nsec += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE];
 
 	ktime_get_boottime_ts64(&uptime);
+	timens_clock_from_host(CLOCK_BOOTTIME, &uptime);
+
 	idle.tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
 	idle.tv_nsec = rem;
 	seq_printf(m, "%lu.%02lu %lu.%02lu\n",
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 08/20] x86/vdso: Restrict splitting vvar vma
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (6 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 07/20] timens: Shift /proc/uptime Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 09/20] x86/vdso/timens: Add offsets page in vvar Dmitry Safonov
                   ` (12 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

As offsets differ between time namespaces, we will need to flush vvar
mapping for timens page during setns(), unshare(), clone(NEW_TIME).
Forcing userspace to mremap() either all vvar or nothing and the same
for munmap() will simplify searching for timens page to flush.

Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 arch/x86/entry/vdso/vma.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 5b8b556dbb12..8cc0395687b0 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -84,6 +84,18 @@ static int vdso_mremap(const struct vm_special_mapping *sm,
 	return 0;
 }
 
+static int vvar_mremap(const struct vm_special_mapping *sm,
+		struct vm_area_struct *new_vma)
+{
+	unsigned long new_size = new_vma->vm_end - new_vma->vm_start;
+	const struct vdso_image *image = current->mm->context.vdso_image;
+
+	if (new_size != -image->sym_vvar_start)
+		return -EINVAL;
+
+	return 0;
+}
+
 static int vvar_fault(const struct vm_special_mapping *sm,
 		      struct vm_area_struct *vma, struct vm_fault *vmf)
 {
@@ -142,6 +154,7 @@ static const struct vm_special_mapping vdso_mapping = {
 static const struct vm_special_mapping vvar_mapping = {
 	.name = "[vvar]",
 	.fault = vvar_fault,
+	.mremap = vvar_mremap,
 };
 
 /*
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 09/20] x86/vdso/timens: Add offsets page in vvar
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (7 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 08/20] x86/vdso: Restrict splitting vvar vma Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 10/20] x86/vdso: Use set_normalized_timespec() to avoid 32 bit overflow Dmitry Safonov
                   ` (11 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

From: Andrei Vagin <avagin@openvz.org>

As modern applications fetch time from vdso without entering the kernel,
it's needed to provide offsets for userspace code.

Allocate a page for timens offsets when constructing time namespace.
As vdso mappings are platform-specific, add Kconfig dependency for arch.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Co-developed-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 arch/Kconfig                          |  5 +++++
 arch/x86/Kconfig                      |  1 +
 arch/x86/entry/vdso/vclock_gettime.c  | 26 ++++++++++++++++++++++++++
 arch/x86/entry/vdso/vdso-layout.lds.S |  9 ++++++++-
 arch/x86/entry/vdso/vdso2c.c          |  3 +++
 arch/x86/entry/vdso/vma.c             | 12 ++++++++++++
 arch/x86/include/asm/vdso.h           |  1 +
 init/Kconfig                          |  1 +
 8 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 6801123932a5..411df0227a1d 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -681,6 +681,11 @@ config HAVE_ARCH_HASH
 config ISA_BUS_API
 	def_bool ISA
 
+config ARCH_HAS_VDSO_TIME_NS
+	bool
+	help
+	 VDSO can add time-ns offsets without entering kernel.
+
 #
 # ABI hall of shame
 #
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1a0be022f91d..4bcbdd1f1200 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -70,6 +70,7 @@ config X86
 	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_SYNC_CORE_BEFORE_USERMODE
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
+	select ARCH_HAS_VDSO_TIME_NS
 	select ARCH_HAS_ZONE_DEVICE		if X86_64
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_MIGHT_HAVE_ACPI_PDC		if ACPI
diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c
index f19856d95c60..0594266740b9 100644
--- a/arch/x86/entry/vdso/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vclock_gettime.c
@@ -21,6 +21,7 @@
 #include <linux/math64.h>
 #include <linux/time.h>
 #include <linux/kernel.h>
+#include <linux/timens_offsets.h>
 
 #define gtod (&VVAR(vsyscall_gtod_data))
 
@@ -38,6 +39,11 @@ extern u8 hvclock_page
 	__attribute__((visibility("hidden")));
 #endif
 
+#ifdef CONFIG_TIME_NS
+extern u8 timens_page
+	__attribute__((visibility("hidden")));
+#endif
+
 #ifndef BUILD_VDSO32
 
 notrace static long vdso_fallback_gettime(long clock, struct timespec *ts)
@@ -225,6 +231,23 @@ notrace static int __always_inline do_realtime(struct timespec *ts)
 	return mode;
 }
 
+notrace static __always_inline void monotonic_to_ns(struct timespec *ts)
+{
+#ifdef CONFIG_TIME_NS
+	struct timens_offsets *timens = (struct timens_offsets *) &timens_page;
+
+	ts->tv_sec += timens->monotonic_time_offset.tv_sec;
+	ts->tv_nsec += timens->monotonic_time_offset.tv_nsec;
+	if (ts->tv_nsec > NSEC_PER_SEC) {
+		ts->tv_nsec -= NSEC_PER_SEC;
+		ts->tv_sec++;
+	} else if (ts->tv_nsec < 0) {
+		ts->tv_nsec += NSEC_PER_SEC;
+		ts->tv_sec--;
+	}
+#endif
+}
+
 notrace static int __always_inline do_monotonic(struct timespec *ts)
 {
 	unsigned long seq;
@@ -243,6 +266,8 @@ notrace static int __always_inline do_monotonic(struct timespec *ts)
 	ts->tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns);
 	ts->tv_nsec = ns;
 
+	monotonic_to_ns(ts);
+
 	return mode;
 }
 
@@ -264,6 +289,7 @@ notrace static void do_monotonic_coarse(struct timespec *ts)
 		ts->tv_sec = gtod->monotonic_time_coarse_sec;
 		ts->tv_nsec = gtod->monotonic_time_coarse_nsec;
 	} while (unlikely(gtod_read_retry(gtod, seq)));
+	monotonic_to_ns(ts);
 }
 
 notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts)
diff --git a/arch/x86/entry/vdso/vdso-layout.lds.S b/arch/x86/entry/vdso/vdso-layout.lds.S
index acfd5ba7d943..e5c2e9deca03 100644
--- a/arch/x86/entry/vdso/vdso-layout.lds.S
+++ b/arch/x86/entry/vdso/vdso-layout.lds.S
@@ -17,6 +17,12 @@
 
 #define NUM_FAKE_SHDRS 13
 
+#ifdef CONFIG_TIME_NS
+# define TIMENS_SZ	PAGE_SIZE
+#else
+# define TIMENS_SZ	0
+#endif
+
 SECTIONS
 {
 	/*
@@ -26,7 +32,7 @@ SECTIONS
 	 * segment.
 	 */
 
-	vvar_start = . - 3 * PAGE_SIZE;
+	vvar_start = . - (3 * PAGE_SIZE + TIMENS_SZ);
 	vvar_page = vvar_start;
 
 	/* Place all vvars at the offsets in asm/vvar.h. */
@@ -38,6 +44,7 @@ SECTIONS
 
 	pvclock_page = vvar_start + PAGE_SIZE;
 	hvclock_page = vvar_start + 2 * PAGE_SIZE;
+	timens_page = vvar_start + 3 * PAGE_SIZE;
 
 	. = SIZEOF_HEADERS;
 
diff --git a/arch/x86/entry/vdso/vdso2c.c b/arch/x86/entry/vdso/vdso2c.c
index 4674f58581a1..6c67cde7fe99 100644
--- a/arch/x86/entry/vdso/vdso2c.c
+++ b/arch/x86/entry/vdso/vdso2c.c
@@ -76,6 +76,7 @@ enum {
 	sym_hpet_page,
 	sym_pvclock_page,
 	sym_hvclock_page,
+	sym_timens_page,
 	sym_VDSO_FAKE_SECTION_TABLE_START,
 	sym_VDSO_FAKE_SECTION_TABLE_END,
 };
@@ -85,6 +86,7 @@ const int special_pages[] = {
 	sym_hpet_page,
 	sym_pvclock_page,
 	sym_hvclock_page,
+	sym_timens_page,
 };
 
 struct vdso_sym {
@@ -98,6 +100,7 @@ struct vdso_sym required_syms[] = {
 	[sym_hpet_page] = {"hpet_page", true},
 	[sym_pvclock_page] = {"pvclock_page", true},
 	[sym_hvclock_page] = {"hvclock_page", true},
+	[sym_timens_page] = {"timens_page", true},
 	[sym_VDSO_FAKE_SECTION_TABLE_START] = {
 		"VDSO_FAKE_SECTION_TABLE_START", false
 	},
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 8cc0395687b0..0f92227a4a7e 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -14,6 +14,7 @@
 #include <linux/elf.h>
 #include <linux/cpu.h>
 #include <linux/ptrace.h>
+#include <linux/time_namespace.h>
 #include <asm/pvclock.h>
 #include <asm/vgtod.h>
 #include <asm/proto.h>
@@ -23,6 +24,7 @@
 #include <asm/desc.h>
 #include <asm/cpufeature.h>
 #include <asm/mshyperv.h>
+#include <asm/page.h>
 
 #if defined(CONFIG_X86_64)
 unsigned int __read_mostly vdso64_enabled = 1;
@@ -138,6 +140,16 @@ static int vvar_fault(const struct vm_special_mapping *sm,
 		if (tsc_pg && vclock_was_used(VCLOCK_HVCLOCK))
 			ret = vm_insert_pfn(vma, vmf->address,
 					    vmalloc_to_pfn(tsc_pg));
+	} else if (sym_offset == image->sym_timens_page) {
+		struct time_namespace *ns = current->nsproxy->time_ns;
+		unsigned long pfn;
+
+		if (!ns->offsets)
+			pfn = page_to_pfn(ZERO_PAGE(0));
+		else
+			pfn = page_to_pfn(virt_to_page(ns->offsets));
+
+		ret = vm_insert_pfn(vma, vmf->address, pfn);
 	}
 
 	if (ret == 0 || ret == -EBUSY)
diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
index 27566e57e87d..619322065b8e 100644
--- a/arch/x86/include/asm/vdso.h
+++ b/arch/x86/include/asm/vdso.h
@@ -22,6 +22,7 @@ struct vdso_image {
 	long sym_hpet_page;
 	long sym_pvclock_page;
 	long sym_hvclock_page;
+	long sym_timens_page;
 	long sym_VDSO32_NOTE_MASK;
 	long sym___kernel_sigreturn;
 	long sym___kernel_rt_sigreturn;
diff --git a/init/Kconfig b/init/Kconfig
index dc2b40f7d73f..c9b250475ddb 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -929,6 +929,7 @@ config UTS_NS
 
 config TIME_NS
 	bool "TIME namespace"
+	depends on ARCH_HAS_VDSO_TIME_NS
 	default y
 	help
 	  In this namespace boottime and monotonic clocks can be set.
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 10/20] x86/vdso: Use set_normalized_timespec() to avoid 32 bit overflow
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (8 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 09/20] x86/vdso/timens: Add offsets page in vvar Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 11/20] x86/vdso: Purge timens page on setns()/unshare()/clone() Dmitry Safonov
                   ` (10 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andrei Vagin, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, Eric W. Biederman, H. Peter Anvin, Ingo Molnar,
	Jeff Dike, Oleg Nesterov, Pavel Emelyanov, Shuah Khan,
	Thomas Gleixner, containers, criu, linux-api, x86

From: Andrei Vagin <avagin@gmail.com>

ts->tv_nsec + offset->tv_nsec

On 32 bit machines that sum can be larger than (1 << 31) and therefor
result in a negative value which screws up the result completely.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 arch/x86/entry/vdso/vclock_gettime.c | 35 ++++++++++++++++++++++++++---------
 1 file changed, 26 insertions(+), 9 deletions(-)

diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c
index 0594266740b9..a265e2737a9a 100644
--- a/arch/x86/entry/vdso/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vclock_gettime.c
@@ -231,20 +231,37 @@ notrace static int __always_inline do_realtime(struct timespec *ts)
 	return mode;
 }
 
+notrace void set_normalized_timespec(struct timespec *ts, time_t sec, s64 nsec)
+{
+	while (nsec >= NSEC_PER_SEC) {
+		/*
+		 * The following asm() prevents the compiler from
+		 * optimising this loop into a modulo operation. See
+		 * also __iter_div_u64_rem() in include/linux/time.h
+		 */
+		asm("" : "+rm"(nsec));
+		nsec -= NSEC_PER_SEC;
+		++sec;
+	}
+	while (nsec < 0) {
+		asm("" : "+rm"(nsec));
+		nsec += NSEC_PER_SEC;
+		--sec;
+	}
+	ts->tv_sec = sec;
+	ts->tv_nsec = nsec;
+}
+
 notrace static __always_inline void monotonic_to_ns(struct timespec *ts)
 {
 #ifdef CONFIG_TIME_NS
 	struct timens_offsets *timens = (struct timens_offsets *) &timens_page;
+	struct timespec offset;
+
+	offset = timespec64_to_timespec(timens->monotonic_time_offset);
+
+	*ts = timespec_add(*ts, offset);
 
-	ts->tv_sec += timens->monotonic_time_offset.tv_sec;
-	ts->tv_nsec += timens->monotonic_time_offset.tv_nsec;
-	if (ts->tv_nsec > NSEC_PER_SEC) {
-		ts->tv_nsec -= NSEC_PER_SEC;
-		ts->tv_sec++;
-	} else if (ts->tv_nsec < 0) {
-		ts->tv_nsec += NSEC_PER_SEC;
-		ts->tv_sec--;
-	}
 #endif
 }
 
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 11/20] x86/vdso: Purge timens page on setns()/unshare()/clone()
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (9 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 10/20] x86/vdso: Use set_normalized_timespec() to avoid 32 bit overflow Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 12/20] x86/vdso: Look for vvar vma to purge timens page Dmitry Safonov
                   ` (9 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

Find page with timens offsets on vvar and flush mapping for it during
entering/creating another time namespace.
Prevents application to have stale mapping from old namespace.
(as old namespace might be destroyed on the moment of userspace access,
it also prevents leaks from kernel).

Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 arch/x86/entry/vdso/vma.c   | 31 +++++++++++++++++++++++++++++++
 arch/x86/include/asm/vdso.h |  1 +
 kernel/time_namespace.c     | 12 ++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 0f92227a4a7e..90eadcfcb7f5 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -25,6 +25,7 @@
 #include <asm/cpufeature.h>
 #include <asm/mshyperv.h>
 #include <asm/page.h>
+#include <asm/tlbflush.h>
 
 #if defined(CONFIG_X86_64)
 unsigned int __read_mostly vdso64_enabled = 1;
@@ -158,6 +159,36 @@ static int vvar_fault(const struct vm_special_mapping *sm,
 	return VM_FAULT_SIGBUS;
 }
 
+static void clear_flush_timens_pte(struct mm_struct *mm, unsigned long addr)
+{
+	spinlock_t *ptl;
+	pte_t *ptep;
+
+	if (follow_pte_pmd(mm, addr, NULL, NULL, &ptep, NULL, &ptl))
+		return; /* no pte found */
+	ptep_get_and_clear(mm, addr, ptep);
+	pte_unmap_unlock(ptep, ptl);
+	flush_tlb_mm_range(mm, addr, addr + PAGE_SIZE, VM_NONE);
+}
+
+int vvar_purge_timens(struct task_struct *task)
+{
+	struct mm_struct *mm = task->mm;
+	const struct vdso_image *image;
+	unsigned long addr;
+
+	if (down_write_killable(&mm->mmap_sem))
+		return -EINTR;
+
+	image = mm->context.vdso_image;
+
+	addr = (unsigned long)mm->context.vdso + image->sym_timens_page;
+	clear_flush_timens_pte(mm, addr);
+
+	up_write(&mm->mmap_sem);
+	return 0;
+}
+
 static const struct vm_special_mapping vdso_mapping = {
 	.name = "[vdso]",
 	.fault = vdso_fault,
diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
index 619322065b8e..98b02481137c 100644
--- a/arch/x86/include/asm/vdso.h
+++ b/arch/x86/include/asm/vdso.h
@@ -45,6 +45,7 @@ extern const struct vdso_image vdso_image_32;
 extern void __init init_vdso_image(const struct vdso_image *image);
 
 extern int map_vdso_once(const struct vdso_image *image, unsigned long addr);
+extern int vvar_purge_timens(struct task_struct *task);
 
 #endif /* __ASSEMBLER__ */
 
diff --git a/kernel/time_namespace.c b/kernel/time_namespace.c
index f96871cb8124..f88ae0e17d92 100644
--- a/kernel/time_namespace.c
+++ b/kernel/time_namespace.c
@@ -14,6 +14,7 @@
 #include <linux/proc_ns.h>
 #include <linux/sched/task.h>
 #include <linux/mm.h>
+#include <asm/vdso.h>
 
 static struct ucounts *inc_time_namespaces(struct user_namespace *ns)
 {
@@ -91,9 +92,15 @@ static struct time_namespace *clone_time_ns(struct user_namespace *user_ns,
 struct time_namespace *copy_time_ns(unsigned long flags,
 	struct user_namespace *user_ns, struct time_namespace *old_ns)
 {
+	int ret;
+
 	if (!(flags & CLONE_NEWTIME))
 		return get_time_ns(old_ns);
 
+	ret = vvar_purge_timens(current);
+	if (ret)
+		return ERR_PTR(ret);
+
 	return clone_time_ns(user_ns, old_ns);
 }
 
@@ -138,11 +145,16 @@ static void timens_put(struct ns_common *ns)
 static int timens_install(struct nsproxy *nsproxy, struct ns_common *new)
 {
 	struct time_namespace *ns = to_time_ns(new);
+	int ret;
 
 	if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN) ||
 	    !ns_capable(current_user_ns(), CAP_SYS_ADMIN))
 		return -EPERM;
 
+	ret = vvar_purge_timens(current);
+	if (ret)
+		return ret;
+
 	get_time_ns(ns);
 	put_time_ns(nsproxy->time_ns);
 	nsproxy->time_ns = ns;
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 12/20] x86/vdso: Look for vvar vma to purge timens page
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (10 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 11/20] x86/vdso: Purge timens page on setns()/unshare()/clone() Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 13/20] posix-timers/timens: Take into account clock offsets Dmitry Safonov
                   ` (8 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

As vvar vma may be moved away from vdso, let's search it, rather than
calculate purge address from vdso position.

Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 arch/x86/entry/vdso/vma.c | 39 +++++++++++++++++++++++++--------------
 1 file changed, 25 insertions(+), 14 deletions(-)

diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 90eadcfcb7f5..d1e2392a4905 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -159,7 +159,18 @@ static int vvar_fault(const struct vm_special_mapping *sm,
 	return VM_FAULT_SIGBUS;
 }
 
-static void clear_flush_timens_pte(struct mm_struct *mm, unsigned long addr)
+static const struct vm_special_mapping vdso_mapping = {
+	.name = "[vdso]",
+	.fault = vdso_fault,
+	.mremap = vdso_mremap,
+};
+static const struct vm_special_mapping vvar_mapping = {
+	.name = "[vvar]",
+	.fault = vvar_fault,
+	.mremap = vvar_mremap,
+};
+
+static void vvar_flush_timens_pte(struct mm_struct *mm, unsigned long addr)
 {
 	spinlock_t *ptl;
 	pte_t *ptep;
@@ -175,31 +186,31 @@ int vvar_purge_timens(struct task_struct *task)
 {
 	struct mm_struct *mm = task->mm;
 	const struct vdso_image *image;
+	struct vm_area_struct *vma;
 	unsigned long addr;
 
 	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
 
+	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+		if (vma_is_special_mapping(vma, &vvar_mapping))
+			break;
+	}
+
+	/* vvar is unmapped */
+	if (!vma || !vma_is_special_mapping(vma, &vvar_mapping))
+		goto out;
+
 	image = mm->context.vdso_image;
 
-	addr = (unsigned long)mm->context.vdso + image->sym_timens_page;
-	clear_flush_timens_pte(mm, addr);
+	addr = vma->vm_end + image->sym_timens_page;
+	vvar_flush_timens_pte(mm, addr);
 
+out:
 	up_write(&mm->mmap_sem);
 	return 0;
 }
 
-static const struct vm_special_mapping vdso_mapping = {
-	.name = "[vdso]",
-	.fault = vdso_fault,
-	.mremap = vdso_mremap,
-};
-static const struct vm_special_mapping vvar_mapping = {
-	.name = "[vvar]",
-	.fault = vvar_fault,
-	.mremap = vvar_mremap,
-};
-
 /*
  * Add vdso and vvar mappings to current process.
  * @image          - blob to map
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 13/20] posix-timers/timens: Take into account clock offsets
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (11 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 12/20] x86/vdso: Look for vvar vma to purge timens page Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-30  3:11   ` [LKP] [posix] 25217c6e39: BUG:KASAN:null-ptr-deref_in_c kernel test robot
  2018-09-19 20:50 ` [RFC 14/20] timens: Add align for timens_offsets Dmitry Safonov
                   ` (7 subsequent siblings)
  20 siblings, 1 reply; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andrei Vagin, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, Eric W. Biederman, H. Peter Anvin, Ingo Molnar,
	Jeff Dike, Oleg Nesterov, Pavel Emelyanov, Shuah Khan,
	Thomas Gleixner, containers, criu, linux-api, x86

From: Andrei Vagin <avagin@gmail.com>

Provide a helper that will convert clocks to time namespace.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 kernel/time/posix-timers.c | 52 +++++++++++++++++++++++++++++++---------------
 kernel/time/posix-timers.h |  2 ++
 2 files changed, 37 insertions(+), 17 deletions(-)

diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index d38835a21c5d..701cb0602b7a 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -206,12 +206,26 @@ static int posix_clock_realtime_adj(const clockid_t which_clock,
 	return do_adjtimex(t);
 }
 
-static void timens_adjust_monotonic(struct timespec64 *tp)
+static void common_timens_adjust(clockid_t which_clock, struct timespec64 *tp)
 {
 	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
 
-	if (ns_offsets)
+	if (!ns_offsets)
+		return;
+
+	switch (which_clock) {
+	case CLOCK_MONOTONIC:
+	case CLOCK_MONOTONIC_RAW:
+	case CLOCK_MONOTONIC_COARSE:
 		*tp = timespec64_add(*tp, ns_offsets->monotonic_time_offset);
+		break;
+	case CLOCK_BOOTTIME:
+		*tp = timespec64_add(*tp, ns_offsets->monotonic_boottime_offset);
+		break;
+	default:
+		WARN_ONCE(1, "Time Namespace offset for %d is not realized",
+				which_clock);
+	}
 }
 
 static int posix_ktime_set_ts(clockid_t which_clock,
@@ -239,7 +253,6 @@ static int posix_ktime_set_ts(clockid_t which_clock,
 static int posix_ktime_get_ts(clockid_t which_clock, struct timespec64 *tp)
 {
 	ktime_get_ts64(tp);
-	timens_adjust_monotonic(tp);
 	return 0;
 }
 
@@ -249,7 +262,6 @@ static int posix_ktime_get_ts(clockid_t which_clock, struct timespec64 *tp)
 static int posix_get_monotonic_raw(clockid_t which_clock, struct timespec64 *tp)
 {
 	ktime_get_raw_ts64(tp);
-	timens_adjust_monotonic(tp);
 	return 0;
 }
 
@@ -264,7 +276,6 @@ static int posix_get_monotonic_coarse(clockid_t which_clock,
 						struct timespec64 *tp)
 {
 	ktime_get_coarse_ts64(tp);
-	timens_adjust_monotonic(tp);
 	return 0;
 }
 
@@ -276,15 +287,7 @@ static int posix_get_coarse_res(const clockid_t which_clock, struct timespec64 *
 
 static int posix_get_boottime(const clockid_t which_clock, struct timespec64 *tp)
 {
-	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
-
 	ktime_get_boottime_ts64(tp);
-
-	if (!ns_offsets)
-		return 0;
-
-	*tp = timespec64_add(*tp, ns_offsets->monotonic_boottime_offset);
-
 	return 0;
 }
 
@@ -933,10 +936,6 @@ static int do_timer_settime(timer_t timer_id, int flags,
 	unsigned long flag;
 	int error = 0;
 
-	if (!timespec64_valid(&new_spec64->it_interval) ||
-	    !timespec64_valid(&new_spec64->it_value))
-		return -EINVAL;
-
 	if (old_spec64)
 		memset(old_spec64, 0, sizeof(*old_spec64));
 retry:
@@ -944,6 +943,15 @@ static int do_timer_settime(timer_t timer_id, int flags,
 	if (!timr)
 		return -EINVAL;
 
+	if (flags & TIMER_ABSTIME)
+		timens_clock_to_host(timr->it_clock, &new_spec64->it_value);
+
+	if (!timespec64_valid(&new_spec64->it_interval) ||
+	    !timespec64_valid(&new_spec64->it_value)) {
+		unlock_timer(timr, flag);
+		return -EINVAL;
+	}
+
 	kc = timr->kclock;
 	if (WARN_ON_ONCE(!kc || !kc->timer_set))
 		error = -EINVAL;
@@ -1121,6 +1129,9 @@ SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock,
 
 	error = kc->clock_get(which_clock, &kernel_tp);
 
+	if (!error && kc->clock_timens_adjust)
+		kc->clock_timens_adjust(which_clock, &kernel_tp);
+
 	if (!error && put_timespec64(&kernel_tp, tp))
 		error = -EFAULT;
 
@@ -1197,6 +1208,9 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock,
 
 	err = kc->clock_get(which_clock, &ts);
 
+	if (!err && kc->clock_timens_adjust)
+		kc->clock_timens_adjust(which_clock, &ts);
+
 	if (!err && compat_put_timespec64(&ts, tp))
 		err = -EFAULT;
 
@@ -1340,6 +1354,7 @@ static const struct k_clock clock_monotonic = {
 	.clock_getres		= posix_get_hrtimer_res,
 	.clock_get		= posix_ktime_get_ts,
 	.clock_set		= posix_ktime_set_ts,
+	.clock_timens_adjust	= common_timens_adjust,
 	.nsleep			= common_nsleep,
 	.timer_create		= common_timer_create,
 	.timer_set		= common_timer_set,
@@ -1356,6 +1371,7 @@ static const struct k_clock clock_monotonic_raw = {
 	.clock_getres		= posix_get_hrtimer_res,
 	.clock_get		= posix_get_monotonic_raw,
 	.clock_set		= posix_ktime_set_ts,
+	.clock_timens_adjust	= common_timens_adjust,
 };
 
 static const struct k_clock clock_realtime_coarse = {
@@ -1367,6 +1383,7 @@ static const struct k_clock clock_monotonic_coarse = {
 	.clock_getres		= posix_get_coarse_res,
 	.clock_get		= posix_get_monotonic_coarse,
 	.clock_set		= posix_ktime_set_ts,
+	.clock_timens_adjust	= common_timens_adjust,
 };
 
 static const struct k_clock clock_tai = {
@@ -1388,6 +1405,7 @@ static const struct k_clock clock_boottime = {
 	.clock_getres		= posix_get_hrtimer_res,
 	.clock_get		= posix_get_boottime,
 	.clock_set		= posix_set_boottime,
+	.clock_timens_adjust	= common_timens_adjust,
 	.nsleep			= common_nsleep,
 	.timer_create		= common_timer_create,
 	.timer_set		= common_timer_set,
diff --git a/kernel/time/posix-timers.h b/kernel/time/posix-timers.h
index ddb21145211a..308774bea32a 100644
--- a/kernel/time/posix-timers.h
+++ b/kernel/time/posix-timers.h
@@ -8,6 +8,8 @@ struct k_clock {
 			     const struct timespec64 *tp);
 	int	(*clock_get)(const clockid_t which_clock,
 			     struct timespec64 *tp);
+	void	(*clock_timens_adjust)(const clockid_t which_clock,
+			     struct timespec64 *tp);
 	int	(*clock_adj)(const clockid_t which_clock, struct timex *tx);
 	int	(*timer_create)(struct k_itimer *timer);
 	int	(*nsleep)(const clockid_t which_clock, int flags,
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 14/20] timens: Add align for timens_offsets
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (12 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 13/20] posix-timers/timens: Take into account clock offsets Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 15/20] timens: Optimize zero-offsets Dmitry Safonov
                   ` (6 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

Align offsets so that Time Namespace will work for ia32 applications on
x86_64 host.

Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 include/linux/timens_offsets.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/include/linux/timens_offsets.h b/include/linux/timens_offsets.h
index 777530c46852..92a8ea5601eb 100644
--- a/include/linux/timens_offsets.h
+++ b/include/linux/timens_offsets.h
@@ -2,9 +2,16 @@
 #ifndef _LINUX_TIME_OFFSETS_H
 #define _LINUX_TIME_OFFSETS_H
 
+/*
+ * Time offsets need align as they're placed on vvar page,
+ * which should have tail paddings on ia32 vdso.
+ * Otherwise as u64 has align(4), vvar offsets will differ.
+ * On 64-bit big-endian systems vdso should convert to timespec64
+ * to timespec because of a padding occuring between the fields.
+ */
 struct timens_offsets {
-	struct timespec64  monotonic_time_offset;
-	struct timespec64  monotonic_boottime_offset;
+	struct timespec64  monotonic_time_offset __aligned(8);
+	struct timespec64  monotonic_boottime_offset __aligned(8);
 };
 
 #endif
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 15/20] timens: Optimize zero-offsets
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (13 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 14/20] timens: Add align for timens_offsets Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 16/20] selftest: Add Time Namespace test for supported clocks Dmitry Safonov
                   ` (5 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

Fall through on host or in ns without time set.
Add TIMENS_FALLBACK_SYSCALL which might be wired up if timens offsets
should be unknown for userspace (will result in fall-back to syscalls).

Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 arch/x86/entry/vdso/vclock_gettime.c | 17 +++++++++++++----
 include/linux/timens_offsets.h       | 12 ++++++++++--
 kernel/time/posix-timers.c           | 21 ++++++++++++---------
 kernel/time_namespace.c              |  2 +-
 4 files changed, 36 insertions(+), 16 deletions(-)

diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c
index a265e2737a9a..458cb1992e2e 100644
--- a/arch/x86/entry/vdso/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vclock_gettime.c
@@ -252,17 +252,25 @@ notrace void set_normalized_timespec(struct timespec *ts, time_t sec, s64 nsec)
 	ts->tv_nsec = nsec;
 }
 
-notrace static __always_inline void monotonic_to_ns(struct timespec *ts)
+notrace static __always_inline int monotonic_to_ns(struct timespec *ts)
 {
 #ifdef CONFIG_TIME_NS
 	struct timens_offsets *timens = (struct timens_offsets *) &timens_page;
 	struct timespec offset;
 
+	/* Optimization: time is the same as on host, return right away */
+	if (!(timens->flags & TIMENS_USE_OFFSETS))
+		return 0;
+
+	if (timens->flags & TIMENS_FALLBACK_SYSCALL)
+		return -1;
+
 	offset = timespec64_to_timespec(timens->monotonic_time_offset);
 
 	*ts = timespec_add(*ts, offset);
 
 #endif
+	return 0;
 }
 
 notrace static int __always_inline do_monotonic(struct timespec *ts)
@@ -283,8 +291,6 @@ notrace static int __always_inline do_monotonic(struct timespec *ts)
 	ts->tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns);
 	ts->tv_nsec = ns;
 
-	monotonic_to_ns(ts);
-
 	return mode;
 }
 
@@ -306,7 +312,6 @@ notrace static void do_monotonic_coarse(struct timespec *ts)
 		ts->tv_sec = gtod->monotonic_time_coarse_sec;
 		ts->tv_nsec = gtod->monotonic_time_coarse_nsec;
 	} while (unlikely(gtod_read_retry(gtod, seq)));
-	monotonic_to_ns(ts);
 }
 
 notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts)
@@ -319,12 +324,16 @@ notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts)
 	case CLOCK_MONOTONIC:
 		if (do_monotonic(ts) == VCLOCK_NONE)
 			goto fallback;
+		if (monotonic_to_ns(ts))
+			goto fallback;
 		break;
 	case CLOCK_REALTIME_COARSE:
 		do_realtime_coarse(ts);
 		break;
 	case CLOCK_MONOTONIC_COARSE:
 		do_monotonic_coarse(ts);
+		if (monotonic_to_ns(ts))
+			goto fallback;
 		break;
 	default:
 		goto fallback;
diff --git a/include/linux/timens_offsets.h b/include/linux/timens_offsets.h
index 92a8ea5601eb..8c43e7c3e632 100644
--- a/include/linux/timens_offsets.h
+++ b/include/linux/timens_offsets.h
@@ -2,6 +2,13 @@
 #ifndef _LINUX_TIME_OFFSETS_H
 #define _LINUX_TIME_OFFSETS_H
 
+enum {
+	/* We're in namespace - add offsets from vvar */
+	TIMENS_USE_OFFSETS	= 1,
+	/* Don't expose host's offsets, fall back to syscall - slow */
+	TIMENS_FALLBACK_SYSCALL	= 2, /* TODO if anyone actually interested */
+};
+
 /*
  * Time offsets need align as they're placed on vvar page,
  * which should have tail paddings on ia32 vdso.
@@ -10,8 +17,9 @@
  * to timespec because of a padding occuring between the fields.
  */
 struct timens_offsets {
-	struct timespec64  monotonic_time_offset __aligned(8);
-	struct timespec64  monotonic_boottime_offset __aligned(8);
+	u64		  flags;
+	struct timespec64 monotonic_time_offset __aligned(8);
+	struct timespec64 monotonic_boottime_offset __aligned(8);
 };
 
 #endif
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 701cb0602b7a..576dbd24c498 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -210,7 +210,7 @@ static void common_timens_adjust(clockid_t which_clock, struct timespec64 *tp)
 {
 	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
 
-	if (!ns_offsets)
+	if (!ns_offsets || !(ns_offsets->flags & TIMENS_USE_OFFSETS))
 		return;
 
 	switch (which_clock) {
@@ -234,15 +234,16 @@ static int posix_ktime_set_ts(clockid_t which_clock,
 	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
 	struct timespec64 ktp;
 
+	if (!ns_offsets)
+		return -EINVAL;
+
 	if (!ns_capable(current->nsproxy->time_ns->user_ns, CAP_SYS_TIME))
 		return -EPERM;
 
 	ktime_get_ts64(&ktp);
 
-	if (ns_offsets)
-		ns_offsets->monotonic_time_offset = timespec64_sub(*tp, ktp);
-	else
-		return -EINVAL;
+	ns_offsets->monotonic_time_offset = timespec64_sub(*tp, ktp);
+	ns_offsets->flags |= TIMENS_USE_OFFSETS;
 
 	return 0;
 }
@@ -296,15 +297,17 @@ static int posix_set_boottime(clockid_t which_clock, const struct timespec64 *tp
 	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
 	struct timespec64 ktp;
 
+	if (!ns_offsets)
+		return -EINVAL;
+
 	if (!ns_capable(current->nsproxy->time_ns->user_ns, CAP_SYS_TIME))
 		return -EPERM;
 
 	ktime_get_boottime_ts64(&ktp);
 
-	if (ns_offsets)
-		ns_offsets->monotonic_boottime_offset = timespec64_sub(*tp, ktp);
-	else
-		return -EINVAL;
+	ns_offsets->monotonic_boottime_offset = timespec64_sub(*tp, ktp);
+	ns_offsets->flags |= TIMENS_USE_OFFSETS;
+
 	return 0;
 }
 
diff --git a/kernel/time_namespace.c b/kernel/time_namespace.c
index f88ae0e17d92..4052bdcec110 100644
--- a/kernel/time_namespace.c
+++ b/kernel/time_namespace.c
@@ -171,7 +171,7 @@ static void clock_timens_fixup(int clockid, struct timespec64 *val, bool to_ns)
 	struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
 	struct timespec64 *offsets = NULL;
 
-	if (!ns_offsets)
+	if (!ns_offsets || !(ns_offsets->flags & TIMENS_USE_OFFSETS))
 		return;
 
 	if (val->tv_sec == 0 && val->tv_nsec == 0)
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 16/20] selftest: Add Time Namespace test for supported clocks
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (14 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 15/20] timens: Optimize zero-offsets Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-24 21:36   ` Shuah Khan
  2018-09-19 20:50 ` [RFC 17/20] selftest/timens: Add test for timerfd Dmitry Safonov
                   ` (4 subsequent siblings)
  20 siblings, 1 reply; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86, linux-kselftest

This test checks that all supported clocks can be changed by
clock_settime.

Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Co-developed-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 tools/testing/selftests/timens/.gitignore |   1 +
 tools/testing/selftests/timens/Makefile   |   5 +
 tools/testing/selftests/timens/config     |   1 +
 tools/testing/selftests/timens/log.h      |  21 ++++
 tools/testing/selftests/timens/timens.c   | 196 ++++++++++++++++++++++++++++++
 5 files changed, 224 insertions(+)
 create mode 100644 tools/testing/selftests/timens/.gitignore
 create mode 100644 tools/testing/selftests/timens/Makefile
 create mode 100644 tools/testing/selftests/timens/config
 create mode 100644 tools/testing/selftests/timens/log.h
 create mode 100644 tools/testing/selftests/timens/timens.c

diff --git a/tools/testing/selftests/timens/.gitignore b/tools/testing/selftests/timens/.gitignore
new file mode 100644
index 000000000000..27a693229ce1
--- /dev/null
+++ b/tools/testing/selftests/timens/.gitignore
@@ -0,0 +1 @@
+timens
diff --git a/tools/testing/selftests/timens/Makefile b/tools/testing/selftests/timens/Makefile
new file mode 100644
index 000000000000..b877efb78974
--- /dev/null
+++ b/tools/testing/selftests/timens/Makefile
@@ -0,0 +1,5 @@
+TEST_GEN_PROGS := timens
+
+CFLAGS := -Wall -Werror
+
+include ../lib.mk
diff --git a/tools/testing/selftests/timens/config b/tools/testing/selftests/timens/config
new file mode 100644
index 000000000000..4480620f6f49
--- /dev/null
+++ b/tools/testing/selftests/timens/config
@@ -0,0 +1 @@
+CONFIG_TIME_NS=y
diff --git a/tools/testing/selftests/timens/log.h b/tools/testing/selftests/timens/log.h
new file mode 100644
index 000000000000..05fec7f97870
--- /dev/null
+++ b/tools/testing/selftests/timens/log.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __SELFTEST_TIMENS_LOG_H__
+#define __SELFTEST_TIMENS_LOG_H__
+
+#define pr_msg(fmt, lvl, ...)						\
+	fprintf(stderr, "[%s] (%s:%d)\t" fmt "\n",			\
+			lvl, __FILE__, __LINE__, ##__VA_ARGS__)
+
+#define pr_p(func, fmt, ...)	func(fmt ": %m", ##__VA_ARGS__)
+
+#define pr_err(fmt, ...)						\
+	({								\
+		pr_msg(fmt, "ERR", ##__VA_ARGS__)			\
+		-1;							\
+	})
+#define pr_fail(fmt, ...)	pr_msg(fmt, "FAIL", ##__VA_ARGS__)
+
+#define pr_perror(fmt, ...)	pr_p(pr_err, fmt, ##__VA_ARGS__)
+
+#endif
diff --git a/tools/testing/selftests/timens/timens.c b/tools/testing/selftests/timens/timens.c
new file mode 100644
index 000000000000..dfa6701214b1
--- /dev/null
+++ b/tools/testing/selftests/timens/timens.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+#include <time.h>
+
+#include "log.h"
+
+#ifndef CLONE_NEWTIME
+# define CLONE_NEWTIME	0x00001000
+#endif
+
+/*
+ * Test shouldn't be run for a day, so add 10 days to child
+ * time and check parent's time to be in the same day.
+ */
+#define DAY_IN_SEC			(60*60*24)
+#define TEN_DAYS_IN_SEC			(10*DAY_IN_SEC)
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+#define CLOCK_TYPES							\
+	ct(CLOCK_BOOTTIME),						\
+	ct(CLOCK_MONOTONIC),						\
+	ct(CLOCK_MONOTONIC_COARSE),					\
+	ct(CLOCK_MONOTONIC_RAW),					\
+
+
+#define ct(clock)	clock
+static clockid_t clocks[] = {
+	CLOCK_TYPES
+};
+#undef ct
+#define ct(clock)	#clock
+static char *clock_names[] = {
+	CLOCK_TYPES
+};
+
+static int child_ns, parent_ns;
+
+static int switch_ns(int fd)
+{
+	if (setns(fd, CLONE_NEWTIME)) {
+		pr_perror("setns()");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int init_namespaces(void)
+{
+	char path[] = "/proc/self/ns/time";
+	struct stat st1, st2;
+
+	parent_ns = open(path, O_RDONLY);
+	if (parent_ns <= 0)
+		return pr_perror("Unable to open %s", path);
+
+	if (fstat(parent_ns, &st1))
+		return pr_perror("Unable to stat the parent timens");
+
+	if (unshare(CLONE_NEWTIME))
+		return pr_perror("Can't unshare() timens");
+
+	child_ns = open(path, O_RDONLY);
+	if (child_ns <= 0)
+		return pr_perror("Unable to open %s", path);
+
+	if (fstat(child_ns, &st2))
+		return pr_perror("Unable to stat the timens");
+
+	if (st1.st_ino == st2.st_ino)
+		return pr_perror("The same child_ns after CLONE_NEWTIME");
+
+	return 0;
+}
+
+static int _gettime(clockid_t clk_id, struct timespec *res, bool raw_syscall)
+{
+	int err;
+
+	if (!raw_syscall) {
+		if (clock_gettime(clk_id, res)) {
+			pr_perror("clock_gettime(%d)", (int)clk_id);
+			return -1;
+		}
+		return 0;
+	}
+
+	err = syscall(SYS_clock_gettime, clk_id, res);
+	if (err)
+		pr_perror("syscall(SYS_clock_gettime(%d))", (int)clk_id);
+
+	return err;
+}
+
+static int _settime(clockid_t clk_id, struct timespec *res, bool raw_syscall)
+{
+	int err;
+
+	if (!raw_syscall) {
+		if (clock_settime(clk_id, res))
+			return pr_perror("clock_settime(%d)", (int)clk_id);
+		return 0;
+	}
+
+	err = syscall(SYS_clock_settime, clk_id, res);
+	if (err)
+		pr_perror("syscall(SYS_clock_settime(%d))", (int)clk_id);
+
+	return err;
+}
+
+static int test_gettime(clockid_t clock_index, bool raw_syscall, time_t offset)
+{
+	struct timespec child_ts_new, parent_ts_old, cur_ts;
+	char *entry = raw_syscall ? "syscall" : "vdso";
+	double precision = 0.0;
+
+	switch (clocks[clock_index]) {
+	case CLOCK_MONOTONIC_COARSE:
+	case CLOCK_MONOTONIC_RAW:
+		precision = -2.0;
+		break;
+	}
+
+	if (switch_ns(parent_ns))
+		return pr_err("switch_ns(%d)", child_ns);
+
+	if (_gettime(clocks[clock_index], &parent_ts_old, raw_syscall))
+		return -1;
+
+	if (switch_ns(child_ns))
+		return pr_err("switch_ns(%d)", child_ns);
+
+	child_ts_new.tv_nsec = parent_ts_old.tv_nsec;
+	child_ts_new.tv_sec = parent_ts_old.tv_sec + offset;
+
+	if (_settime(clocks[clock_index], &child_ts_new, raw_syscall))
+		return -1;
+
+	if (_gettime(clocks[clock_index], &cur_ts, raw_syscall))
+		return -1;
+
+	if (difftime(cur_ts.tv_sec, child_ts_new.tv_sec) < precision) {
+		pr_fail("Child's %s (%s) time has not changed: %lu -> %lu [%lu]",
+			clock_names[clock_index], entry, parent_ts_old.tv_sec,
+			child_ts_new.tv_sec, cur_ts.tv_sec);
+		return -1;
+	}
+
+	if (switch_ns(parent_ns))
+		return pr_err("switch_ns(%d)", parent_ns);
+
+	if (_gettime(clocks[clock_index], &cur_ts, raw_syscall))
+		return -1;
+
+	if (difftime(cur_ts.tv_sec, parent_ts_old.tv_sec) > DAY_IN_SEC) {
+		pr_fail("Parent's %s (%s) time has changed: %lu -> %lu [%lu]",
+			clock_names[clock_index], entry, parent_ts_old.tv_sec,
+			child_ts_new.tv_sec, cur_ts.tv_sec);
+		/* Let's play nice and put it closer to original */
+		clock_settime(clocks[clock_index], &cur_ts);
+		return -1;
+	}
+
+	pr_msg("Passed for %s (%s)", "OK", clock_names[clock_index], entry);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned int i;
+	int ret = 0;
+
+	if (init_namespaces())
+		return 1;
+
+	for (i = 0; i < ARRAY_SIZE(clocks); i++) {
+		ret |= test_gettime(i, true, TEN_DAYS_IN_SEC);
+		ret |= test_gettime(i, true, -TEN_DAYS_IN_SEC);
+		ret |= test_gettime(i, false, TEN_DAYS_IN_SEC);
+		ret |= test_gettime(i, false, -TEN_DAYS_IN_SEC);
+	}
+
+	return !!ret;
+}
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 17/20] selftest/timens: Add test for timerfd
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (15 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 16/20] selftest: Add Time Namespace test for supported clocks Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 18/20] selftest/timens: Add test for clock_nanosleep Dmitry Safonov
                   ` (3 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andrei Vagin, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, Eric W. Biederman, H. Peter Anvin, Ingo Molnar,
	Jeff Dike, Oleg Nesterov, Pavel Emelyanov, Shuah Khan,
	Thomas Gleixner, containers, criu, linux-api, x86,
	linux-kselftest

From: Andrei Vagin <avagin@gmail.com>

Check that timerfd_create takes into account clock offsets.

Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 tools/testing/selftests/timens/.gitignore |  1 +
 tools/testing/selftests/timens/Makefile   |  2 +-
 tools/testing/selftests/timens/timerfd.c  | 96 +++++++++++++++++++++++++++++++
 3 files changed, 98 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/timens/timerfd.c

diff --git a/tools/testing/selftests/timens/.gitignore b/tools/testing/selftests/timens/.gitignore
index 27a693229ce1..b609f6ee9fb9 100644
--- a/tools/testing/selftests/timens/.gitignore
+++ b/tools/testing/selftests/timens/.gitignore
@@ -1 +1,2 @@
 timens
+timerfd
diff --git a/tools/testing/selftests/timens/Makefile b/tools/testing/selftests/timens/Makefile
index b877efb78974..66b90cd28e5c 100644
--- a/tools/testing/selftests/timens/Makefile
+++ b/tools/testing/selftests/timens/Makefile
@@ -1,4 +1,4 @@
-TEST_GEN_PROGS := timens
+TEST_GEN_PROGS := timens timerfd
 
 CFLAGS := -Wall -Werror
 
diff --git a/tools/testing/selftests/timens/timerfd.c b/tools/testing/selftests/timens/timerfd.c
new file mode 100644
index 000000000000..914a4cd9a0df
--- /dev/null
+++ b/tools/testing/selftests/timens/timerfd.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <sys/timerfd.h>
+#include <sys/syscall.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include "log.h"
+
+#ifndef CLONE_NEWTIME
+# define CLONE_NEWTIME	0x00001000
+#endif
+
+int run_test(int clockid)
+{
+	struct itimerspec new_value;
+	struct timespec now;
+	long long elapsed;
+	int fd, i;
+
+	if (clock_gettime(clockid, &now))
+		return pr_perror("clock_gettime");
+
+	for (i = 0; i < 2; i++) {
+		int flags = 0;
+
+		pr_msg("timerfd_settime: %d", "INFO", clockid);
+		new_value.it_value.tv_sec = 3600;
+		new_value.it_value.tv_nsec = 0;
+		new_value.it_interval.tv_sec = 1;
+		new_value.it_interval.tv_nsec = 0;
+
+		if (i == 1) {
+			new_value.it_value.tv_sec += now.tv_sec;
+			new_value.it_value.tv_nsec += now.tv_nsec;
+		}
+
+		fd = timerfd_create(clockid, 0);
+		if (fd == -1)
+			return pr_perror("timerfd_create");
+
+		if (i == 1)
+			flags |= TFD_TIMER_ABSTIME;
+
+		if (timerfd_settime(fd, flags, &new_value, NULL))
+			return pr_perror("timerfd_settime");
+
+		if (timerfd_gettime(fd, &new_value))
+			return pr_perror("timerfd_gettime");
+
+		elapsed = new_value.it_value.tv_sec;
+		if (abs(elapsed - 3600) > 60) {
+			printf("FAIL\n");
+			return 1;
+		}
+
+		close(fd);
+	}
+
+	printf("PASS\n");
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	struct timespec tp;
+	int ret;
+
+	if (unshare(CLONE_NEWTIME))
+		return pr_perror("unshare");
+
+	if (clock_gettime(CLOCK_MONOTONIC, &tp))
+		return pr_perror("clock_gettime");
+	tp.tv_sec = 7 * 24 * 3600;
+	if (clock_settime(CLOCK_MONOTONIC, &tp))
+		return pr_perror("clock_settime");
+
+	if (clock_gettime(CLOCK_BOOTTIME, &tp))
+		return pr_perror("clock_gettime");
+	tp.tv_sec += 9 * 24 * 3600;
+	tp.tv_nsec = 0;
+	if (clock_settime(CLOCK_BOOTTIME, &tp))
+		return pr_perror("clock_settime");
+
+	ret = 0;
+	ret |= run_test(CLOCK_BOOTTIME);
+	ret |= run_test(CLOCK_MONOTONIC);
+	return ret;
+}
+
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 18/20] selftest/timens: Add test for clock_nanosleep
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (16 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 17/20] selftest/timens: Add test for timerfd Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 19/20] timens/selftest: Add procfs selftest Dmitry Safonov
                   ` (2 subsequent siblings)
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andrei Vagin, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, Eric W. Biederman, H. Peter Anvin, Ingo Molnar,
	Jeff Dike, Oleg Nesterov, Pavel Emelyanov, Shuah Khan,
	Thomas Gleixner, containers, criu, linux-api, x86,
	linux-kselftest

From: Andrei Vagin <avagin@gmail.com>

Check that clock_nanosleep() takes into account clock offsets.

Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 tools/testing/selftests/timens/.gitignore        |  1 +
 tools/testing/selftests/timens/Makefile          |  2 +-
 tools/testing/selftests/timens/clock_nanosleep.c | 98 ++++++++++++++++++++++++
 3 files changed, 100 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/timens/clock_nanosleep.c

diff --git a/tools/testing/selftests/timens/.gitignore b/tools/testing/selftests/timens/.gitignore
index b609f6ee9fb9..9b6c8ddac2c8 100644
--- a/tools/testing/selftests/timens/.gitignore
+++ b/tools/testing/selftests/timens/.gitignore
@@ -1,2 +1,3 @@
+clock_nanosleep
 timens
 timerfd
diff --git a/tools/testing/selftests/timens/Makefile b/tools/testing/selftests/timens/Makefile
index 66b90cd28e5c..76a1dc891184 100644
--- a/tools/testing/selftests/timens/Makefile
+++ b/tools/testing/selftests/timens/Makefile
@@ -1,4 +1,4 @@
-TEST_GEN_PROGS := timens timerfd
+TEST_GEN_PROGS := timens timerfd clock_nanosleep
 
 CFLAGS := -Wall -Werror
 
diff --git a/tools/testing/selftests/timens/clock_nanosleep.c b/tools/testing/selftests/timens/clock_nanosleep.c
new file mode 100644
index 000000000000..5af780b4cfe0
--- /dev/null
+++ b/tools/testing/selftests/timens/clock_nanosleep.c
@@ -0,0 +1,98 @@
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <sys/timerfd.h>
+#include <sys/syscall.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include "log.h"
+
+#ifndef CLONE_NEWTIME
+#define CLONE_NEWTIME   0x00001000
+#endif
+
+static long long get_elapsed_time(int clockid, struct timespec *start)
+{
+	struct timespec curr;
+	long long secs, nsecs;
+
+	if (clock_gettime(clockid, &curr) == -1)
+		return pr_perror("clock_gettime");
+
+	secs = curr.tv_sec - start->tv_sec;
+	nsecs = curr.tv_nsec - start->tv_nsec;
+	if (nsecs < 0) {
+		secs--;
+		nsecs += 1000000000;
+	}
+	if (nsecs > 1000000000) {
+		secs++;
+		nsecs -= 1000000000;
+	}
+	return secs * 1000 + nsecs / 1000000;
+}
+
+int run_test(int clockid)
+{
+	long long elapsed;
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		struct timespec now = {};
+		struct timespec start;
+
+		if (clock_gettime(clockid, &start) == -1)
+			return pr_perror("clock_gettime");
+
+
+		if (i == 1) {
+			now.tv_sec = start.tv_sec;
+			now.tv_nsec = start.tv_nsec;
+		}
+
+		printf("clock_nanosleep: %d\n", clockid);
+		now.tv_sec += 2;
+		clock_nanosleep(clockid, i ? TIMER_ABSTIME : 0, &now, NULL);
+
+		elapsed = get_elapsed_time(clockid, &start);
+		if (elapsed < 1900 || elapsed > 2100) {
+			pr_fail("elapsed %lld\n", elapsed);
+			return 1;
+		}
+	}
+
+	printf("PASS\n");
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	struct timespec tp;
+	int ret;
+
+	if (unshare(CLONE_NEWTIME))
+		return pr_perror("unshare");;
+
+	if (clock_gettime(CLOCK_MONOTONIC, &tp))
+		return pr_perror("clock_gettime");
+	tp.tv_sec += 7 * 24 * 3600;
+	if (clock_settime(CLOCK_MONOTONIC, &tp))
+		return pr_perror("clock_settime");
+
+	if (clock_gettime(CLOCK_BOOTTIME, &tp))
+		return pr_perror("clock_gettime");
+	tp.tv_sec += 9 * 24 * 3600;
+	tp.tv_nsec = 0;
+	if (clock_settime(CLOCK_BOOTTIME, &tp))
+		return pr_perror("clock_settime");
+
+	ret = 0;
+	ret |= run_test(CLOCK_MONOTONIC);
+	return ret;
+}
+
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 19/20] timens/selftest: Add procfs selftest
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (17 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 18/20] selftest/timens: Add test for clock_nanosleep Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-19 20:50 ` [RFC 20/20] timens/selftest: Add timer offsets test Dmitry Safonov
  2018-09-21 12:27 ` [RFC 00/20] ns: Introduce Time Namespace Eric W. Biederman
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86, linux-kselftest

Currently only uptime check, but procfs checks for REALTIME might be
added in future.

Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 tools/testing/selftests/timens/.gitignore |   1 +
 tools/testing/selftests/timens/Makefile   |   2 +-
 tools/testing/selftests/timens/procfs.c   | 145 ++++++++++++++++++++++++++++++
 3 files changed, 147 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/timens/procfs.c

diff --git a/tools/testing/selftests/timens/.gitignore b/tools/testing/selftests/timens/.gitignore
index 9b6c8ddac2c8..94ffdd9cead7 100644
--- a/tools/testing/selftests/timens/.gitignore
+++ b/tools/testing/selftests/timens/.gitignore
@@ -1,3 +1,4 @@
 clock_nanosleep
+procfs
 timens
 timerfd
diff --git a/tools/testing/selftests/timens/Makefile b/tools/testing/selftests/timens/Makefile
index 76a1dc891184..f96f50d1fef8 100644
--- a/tools/testing/selftests/timens/Makefile
+++ b/tools/testing/selftests/timens/Makefile
@@ -1,4 +1,4 @@
-TEST_GEN_PROGS := timens timerfd clock_nanosleep
+TEST_GEN_PROGS := timens timerfd clock_nanosleep procfs
 
 CFLAGS := -Wall -Werror
 
diff --git a/tools/testing/selftests/timens/procfs.c b/tools/testing/selftests/timens/procfs.c
new file mode 100644
index 000000000000..5067cbbddcc5
--- /dev/null
+++ b/tools/testing/selftests/timens/procfs.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+#include <time.h>
+
+#include "log.h"
+
+#ifndef CLONE_NEWTIME
+# define CLONE_NEWTIME	0x00001000
+#endif
+
+/*
+ * Test shouldn't be run for a day, so add 10 days to child
+ * time and check parent's time to be in the same day.
+ */
+#define MAX_TEST_TIME_SEC		(60*5)
+#define DAY_IN_SEC			(60*60*24)
+#define TEN_DAYS_IN_SEC			(10*DAY_IN_SEC)
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+static int child_ns, parent_ns;
+
+static int switch_ns(int fd)
+{
+	if (setns(fd, CLONE_NEWTIME))
+		return pr_perror("setns()");
+
+	return 0;
+}
+
+static int init_namespaces(void)
+{
+	char path[] = "/proc/self/ns/time";
+	struct stat st1, st2;
+
+	parent_ns = open(path, O_RDONLY);
+	if (parent_ns <= 0)
+		return pr_perror("Unable to open %s", path);
+
+	if (fstat(parent_ns, &st1))
+		return pr_perror("Unable to stat the parent timens");
+
+	if (unshare(CLONE_NEWTIME))
+		return pr_perror("Can't unshare() timens");
+
+	child_ns = open(path, O_RDONLY);
+	if (child_ns <= 0)
+		return pr_perror("Unable to open %s", path);
+
+	if (fstat(child_ns, &st2))
+		return pr_perror("Unable to stat the timens");
+
+	if (st1.st_ino == st2.st_ino)
+		return pr_err("The same child_ns after CLONE_NEWTIME");
+
+	return 0;
+}
+
+static int read_proc_uptime(struct timespec *uptime)
+{
+	unsigned long up_sec, up_nsec;
+	FILE *proc;
+
+	proc = fopen("/proc/uptime", "r");
+	if (proc == NULL) {
+		pr_perror("Unable to open /proc/uptime");
+		return -1;
+	}
+
+	if (fscanf(proc, "%lu.%02lu", &up_sec, &up_nsec) != 2) {
+		if (errno) {
+			pr_perror("fscanf");
+			return -errno;
+		}
+		pr_err("failed to parse /proc/uptime");
+		return -1;
+	}
+	fclose(proc);
+
+	uptime->tv_sec = up_sec;
+	uptime->tv_nsec = up_nsec;
+	return 0;
+}
+
+static int check_uptime(void)
+{
+	struct timespec ts_btime, uptime_new, uptime_old;
+	time_t uptime_expected;
+	double prec = MAX_TEST_TIME_SEC;
+
+	if (switch_ns(parent_ns))
+		return pr_err("switch_ns(%d)", parent_ns);
+
+	if (clock_gettime(CLOCK_BOOTTIME, &ts_btime))
+		return pr_perror("clock_gettime()");
+
+	if (read_proc_uptime(&uptime_old))
+		return 1;
+
+	ts_btime.tv_sec += TEN_DAYS_IN_SEC;
+
+	if (switch_ns(child_ns))
+		return pr_err("switch_ns(%d)", child_ns);
+
+	if (clock_settime(CLOCK_BOOTTIME, &ts_btime))
+		return pr_perror("clock_settime()");
+
+	if (read_proc_uptime(&uptime_new))
+		return 1;
+
+	uptime_expected = uptime_old.tv_sec + TEN_DAYS_IN_SEC;
+	if (fabs(difftime(uptime_new.tv_sec, uptime_expected)) > prec) {
+		pr_fail("uptime in /proc/uptime: old %ld, new %ld [%ld]",
+			uptime_old.tv_sec, uptime_new.tv_sec,
+			uptime_old.tv_sec + TEN_DAYS_IN_SEC);
+		return 1;
+	}
+
+	pr_msg("Passed for /proc/uptime", "OK");
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int ret = 0;
+
+	if (init_namespaces())
+		return 1;
+
+	ret |= check_uptime();
+
+	return ret;
+}
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* [RFC 20/20] timens/selftest: Add timer offsets test
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (18 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 19/20] timens/selftest: Add procfs selftest Dmitry Safonov
@ 2018-09-19 20:50 ` Dmitry Safonov
  2018-09-21 12:27 ` [RFC 00/20] ns: Introduce Time Namespace Eric W. Biederman
  20 siblings, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-19 20:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86, linux-kselftest

From: Andrei Vagin <avagin@openvz.org>

Check that timer_create takes into account clock offsets.

Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
 tools/testing/selftests/timens/.gitignore |  1 +
 tools/testing/selftests/timens/Makefile   |  3 +-
 tools/testing/selftests/timens/timer.c    | 95 +++++++++++++++++++++++++++++++
 3 files changed, 98 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/timens/timer.c

diff --git a/tools/testing/selftests/timens/.gitignore b/tools/testing/selftests/timens/.gitignore
index 94ffdd9cead7..3b7eda8f35ce 100644
--- a/tools/testing/selftests/timens/.gitignore
+++ b/tools/testing/selftests/timens/.gitignore
@@ -1,4 +1,5 @@
 clock_nanosleep
 procfs
 timens
+timer
 timerfd
diff --git a/tools/testing/selftests/timens/Makefile b/tools/testing/selftests/timens/Makefile
index f96f50d1fef8..ae1ffd24cc43 100644
--- a/tools/testing/selftests/timens/Makefile
+++ b/tools/testing/selftests/timens/Makefile
@@ -1,5 +1,6 @@
-TEST_GEN_PROGS := timens timerfd clock_nanosleep procfs
+TEST_GEN_PROGS := timens timerfd timer clock_nanosleep procfs
 
 CFLAGS := -Wall -Werror
+LDFLAGS := -lrt
 
 include ../lib.mk
diff --git a/tools/testing/selftests/timens/timer.c b/tools/testing/selftests/timens/timer.c
new file mode 100644
index 000000000000..e3a0951aadc8
--- /dev/null
+++ b/tools/testing/selftests/timens/timer.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <sys/syscall.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <signal.h>
+#include <time.h>
+
+#include "log.h"
+
+#ifndef CLONE_NEWTIME
+#define CLONE_NEWTIME   0x00001000	  /* New time namespace */
+#endif
+
+int run_test(int clockid)
+{
+	struct itimerspec new_value;
+	struct timespec now;
+	long long elapsed;
+	timer_t fd;
+	int i;
+
+	if (clock_gettime(clockid, &now) == -1)
+		return pr_perror("clock_gettime");
+
+	for (i = 0; i < 2; i++) {
+		struct sigevent sevp = {.sigev_notify = SIGEV_NONE};
+		int flags = 0;
+
+		pr_msg("timerfd_settime: %d", "INFO", clockid);
+		new_value.it_value.tv_sec = 3600;
+		new_value.it_value.tv_nsec = 0;
+		new_value.it_interval.tv_sec = 1;
+		new_value.it_interval.tv_nsec = 0;
+
+		if (i == 1) {
+			new_value.it_value.tv_sec += now.tv_sec;
+			new_value.it_value.tv_nsec += now.tv_nsec;
+		}
+
+		if (timer_create(clockid, &sevp, &fd) == -1)
+			return pr_perror("timerfd_create");
+
+		if (i == 1)
+			flags |= TIMER_ABSTIME;
+		if (timer_settime(fd, flags, &new_value, NULL) == -1)
+			return pr_perror("timerfd_settime");
+
+		if (timer_gettime(fd, &new_value) == -1)
+			return pr_perror("timerfd_gettime");
+
+		elapsed = new_value.it_value.tv_sec;
+		if (abs(elapsed - 3600) > 60) {
+			pr_fail("elapsed: %lld\n", elapsed);
+			return 1;
+		}
+	}
+
+	printf("PASS\n");
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	struct timespec tp;
+	int ret;
+
+	if (unshare(CLONE_NEWTIME))
+		return pr_perror("unshare");
+
+	if (clock_gettime(CLOCK_MONOTONIC, &tp))
+		return pr_perror("clock_gettime");
+	tp.tv_sec -= 70 * 24 * 3600;
+	if (clock_settime(CLOCK_MONOTONIC, &tp))
+		return pr_perror("clock_settime");
+
+	if (clock_gettime(CLOCK_BOOTTIME, &tp))
+		return pr_perror("clock_gettime");
+	tp.tv_sec -= 9 * 24 * 3600;
+	tp.tv_nsec = 0;
+	if (clock_settime(CLOCK_BOOTTIME, &tp))
+		return pr_perror("clock_settime");
+
+	ret = 0;
+	ret |= run_test(CLOCK_BOOTTIME);
+	ret |= run_test(CLOCK_MONOTONIC);
+	return ret;
+}
+
-- 
2.13.6


^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 02/20] timens: Add timens_offsets
  2018-09-19 20:50 ` [RFC 02/20] timens: Add timens_offsets Dmitry Safonov
@ 2018-09-20 18:45   ` Cyrill Gorcunov
  2018-09-20 22:14     ` Cyrill Gorcunov
  0 siblings, 1 reply; 59+ messages in thread
From: Cyrill Gorcunov @ 2018-09-20 18:45 UTC (permalink / raw)
  To: Dmitry Safonov
  Cc: linux-kernel, Dmitry Safonov, Andrei Vagin, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Eric W. Biederman,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov,
	Pavel Emelyanov, Shuah Khan, Thomas Gleixner, containers, criu,
	linux-api, x86

On Wed, Sep 19, 2018 at 09:50:19PM +0100, Dmitry Safonov wrote:
> From: Andrei Vagin <avagin@openvz.org>
> 
> Introduce offsets for time namespace. They will contain adjustment
> needed to convert clocks to/from host's.
> 
> Allocate one page for each time namespace that will be premapped into
> userspace with vvar pages.

Is not it too much?! The whole page per each clone(new-time-ns) call.
Moreover everytime it is get explicitly zeroifyed. Don't get me wrong,
maybe I miss something obvious, but additional 4K per process, guys :)

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 02/20] timens: Add timens_offsets
  2018-09-20 18:45   ` Cyrill Gorcunov
@ 2018-09-20 22:14     ` Cyrill Gorcunov
  0 siblings, 0 replies; 59+ messages in thread
From: Cyrill Gorcunov @ 2018-09-20 22:14 UTC (permalink / raw)
  To: Cyrill Gorcunov
  Cc: Dmitry Safonov, linux-kernel, Dmitry Safonov, Andrei Vagin,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Eric W. Biederman, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86

On Thu, Sep 20, 2018 at 09:45:10PM +0300, Cyrill Gorcunov wrote:
> On Wed, Sep 19, 2018 at 09:50:19PM +0100, Dmitry Safonov wrote:
> > From: Andrei Vagin <avagin@openvz.org>
> > 
> > Introduce offsets for time namespace. They will contain adjustment
> > needed to convert clocks to/from host's.
> > 
> > Allocate one page for each time namespace that will be premapped into
> > userspace with vvar pages.
> 
> Is not it too much?! The whole page per each clone(new-time-ns) call.
> Moreover everytime it is get explicitly zeroifyed. Don't get me wrong,
> maybe I miss something obvious, but additional 4K per process, guys :)

After being talking to Andrew I think there is no better option though.
If syscalls would be free of course we could use them instead but this
vdso stuff, sigh. I thouhgh about modifying vdso code so it would carry
refs inside (or adding some section into elf loader kernel code), but
all this would simply mess the code. Thus this 4K per namespace seems
to be acceptable trade off.

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
                   ` (19 preceding siblings ...)
  2018-09-19 20:50 ` [RFC 20/20] timens/selftest: Add timer offsets test Dmitry Safonov
@ 2018-09-21 12:27 ` Eric W. Biederman
  2018-09-24 20:51   ` Andrey Vagin
  20 siblings, 1 reply; 59+ messages in thread
From: Eric W. Biederman @ 2018-09-21 12:27 UTC (permalink / raw)
  To: Dmitry Safonov
  Cc: linux-kernel, Dmitry Safonov, Adrian Reber, Andrei Vagin,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov,
	Pavel Emelyanov, Shuah Khan, Thomas Gleixner, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

Dmitry Safonov <dima@arista.com> writes:

> Discussions around time virtualization are there for a long time.
> The first attempt to implement time namespace was in 2006 by Jeff Dike.
> From that time, the topic appears on and off in various discussions.
>
> There are two main use cases for time namespaces:
> 1. change date and time inside a container;
> 2. adjust clocks for a container restored from a checkpoint.
>
> “It seems like this might be one of the last major obstacles keeping
> migration from being used in production systems, given that not all
> containers and connections can be migrated as long as a time dependency
> is capable of messing it up.” (by github.com/dav-ell)
>
> The kernel provides access to several clocks: CLOCK_REALTIME,
> CLOCK_MONOTONIC, CLOCK_BOOTTIME. Last two clocks are monotonous, but the
> start points for them are not defined and are different for each running
> system. When a container is migrated from one node to another, all
> clocks have to be restored into consistent states; in other words, they
> have to continue running from the same points where they have been
> dumped.
>
> The main idea behind this patch set is adding per-namespace offsets for
> system clocks. When a process in a non-root time namespace requests
> time of a clock, a namespace offset is added to the current value of
> this clock on a host and the sum is returned.
>
> All offsets are placed on a separate page, this allows up to map it as 
> part of vvar into user processes and use offsets from vdso calls.
>
> Now offsets are implemented for CLOCK_MONOTONIC and CLOCK_BOOTTIME
> clocks.
>
> Questions to discuss:
>
> * Clone flags exhaustion. Currently there is only one unused clone flag
> bit left, and it may be worth to use it to extend arguments of the clone
> system call.
>
> * Realtime clock implementation details:
>   Is having a simple offset enough?
>   What to do when date and time is changed on the host?
>   Is there a need to adjust vfs modification and creation times? 
>   Implementation for adjtime() syscall.

Overall I support this effort.  In my quick skim this code looked good.

My feeling is that we need to be able to support running ntpd and
support one namespace doing googles smoothing of leap seconds while
another namespace takes the leap second.

What I was imagining when I was last thinking about this was one
instance of struct timekeeper aka tk_core per time namespace.  That
structure already keeps offsets for all of the various clocks from
the kerne internal time sources.  What would be needed would be to
pass in an appropriate time namespace pointer.

I could be completely wrong as I have not take the time to completely
trace through the code.  Have you looked at pushing the time namespace
down as far as tk_core?

What I think would be the big advantage (besides ntp working) is that
the bulk of the code could be reused.  Allowing testing of the kernel's
time code by setting up a new time namespace.  So a person in production
could setup a time namespace with the time set ahead a little  bit and
be able to verify that the kernel handles the upcoming leap second
properly.



I don't know about the vfs.  I think the danger is being able to write
dates in the future or in the past.  It appears that utimes(2) and
utimesnat(2) already allow this except for status change.  So it is
possible we simply don't care.  I seem to remember that what nfs does
is take the time stamp from the host writing to the file.

I think the guide for filesystem timestamps should be to first ensure
we don't introduce security issues, and then do what distributed
filesystems do when dealing with hosts with different clocks.

Given those those two guidlines above I don't think there is a need to
change timestamsp the way the user namespace changes uid when displayed.



As for the hardware like the real time clock we definitely should not
let a root in a time namespace change it.  We might even be able to get
away with leaving the real time clock out of the time namespace.  If not
we need to be very careful how the real time clock is abstracted.  I
would start by leaving the real time clock hardware out of the time
namespace and see if there is any part of userspace that cares.

Eric

> Cc: Dmitry Safonov <0x7f454c46@gmail.com>
> Cc: Adrian Reber <adrian@lisas.de>
> Cc: Andrei Vagin <avagin@openvz.org>
> Cc: Andy Lutomirski <luto@kernel.org>
> Cc: Christian Brauner <christian.brauner@ubuntu.com>
> Cc: Cyrill Gorcunov <gorcunov@openvz.org>
> Cc: "Eric W. Biederman" <ebiederm@xmission.com>
> Cc: "H. Peter Anvin" <hpa@zytor.com> 
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Jeff Dike <jdike@addtoit.com>
> Cc: Oleg Nesterov <oleg@redhat.com>
> Cc: Pavel Emelyanov <xemul@virtuozzo.com>
> Cc: Shuah Khan <shuah@kernel.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: containers@lists.linux-foundation.org
> Cc: criu@openvz.org
> Cc: linux-api@vger.kernel.org
> Cc: x86@kernel.org
>
> Andrei Vagin (12):
>   ns: Introduce Time Namespace
>   timens: Add timens_offsets
>   timens: Introduce CLOCK_MONOTONIC offsets
>   timens: Introduce CLOCK_BOOTTIME offset
>   timerfd/timens: Take into account ns clock offsets
>   kernel: Take into account timens clock offsets in clock_nanosleep
>   x86/vdso/timens: Add offsets page in vvar
>   x86/vdso: Use set_normalized_timespec() to avoid 32 bit overflow
>   posix-timers/timens: Take into account clock offsets
>   selftest/timens: Add test for timerfd
>   selftest/timens: Add test for clock_nanosleep
>   timens/selftest: Add timer offsets test
>
> Dmitry Safonov (8):
>   timens: Shift /proc/uptime
>   x86/vdso: Restrict splitting vvar vma
>   x86/vdso: Purge timens page on setns()/unshare()/clone()
>   x86/vdso: Look for vvar vma to purge timens page
>   timens: Add align for timens_offsets
>   timens: Optimize zero-offsets
>   selftest: Add Time Namespace test for supported clocks
>   timens/selftest: Add procfs selftest
>
>  arch/Kconfig                                     |   5 +
>  arch/x86/Kconfig                                 |   1 +
>  arch/x86/entry/vdso/vclock_gettime.c             |  52 +++++
>  arch/x86/entry/vdso/vdso-layout.lds.S            |   9 +-
>  arch/x86/entry/vdso/vdso2c.c                     |   3 +
>  arch/x86/entry/vdso/vma.c                        |  67 +++++++
>  arch/x86/include/asm/vdso.h                      |   2 +
>  fs/proc/namespaces.c                             |   3 +
>  fs/proc/uptime.c                                 |   3 +
>  fs/timerfd.c                                     |  16 +-
>  include/linux/nsproxy.h                          |   1 +
>  include/linux/proc_ns.h                          |   1 +
>  include/linux/time_namespace.h                   |  72 +++++++
>  include/linux/timens_offsets.h                   |  25 +++
>  include/linux/user_namespace.h                   |   1 +
>  include/uapi/linux/sched.h                       |   1 +
>  init/Kconfig                                     |   8 +
>  kernel/Makefile                                  |   1 +
>  kernel/fork.c                                    |   3 +-
>  kernel/nsproxy.c                                 |  19 +-
>  kernel/time/hrtimer.c                            |   8 +
>  kernel/time/posix-timers.c                       |  89 ++++++++-
>  kernel/time/posix-timers.h                       |   2 +
>  kernel/time_namespace.c                          | 230 +++++++++++++++++++++++
>  tools/testing/selftests/timens/.gitignore        |   5 +
>  tools/testing/selftests/timens/Makefile          |   6 +
>  tools/testing/selftests/timens/clock_nanosleep.c |  98 ++++++++++
>  tools/testing/selftests/timens/config            |   1 +
>  tools/testing/selftests/timens/log.h             |  21 +++
>  tools/testing/selftests/timens/procfs.c          | 145 ++++++++++++++
>  tools/testing/selftests/timens/timens.c          | 196 +++++++++++++++++++
>  tools/testing/selftests/timens/timer.c           |  95 ++++++++++
>  tools/testing/selftests/timens/timerfd.c         |  96 ++++++++++
>  33 files changed, 1272 insertions(+), 13 deletions(-)
>  create mode 100644 include/linux/time_namespace.h
>  create mode 100644 include/linux/timens_offsets.h
>  create mode 100644 kernel/time_namespace.c
>  create mode 100644 tools/testing/selftests/timens/.gitignore
>  create mode 100644 tools/testing/selftests/timens/Makefile
>  create mode 100644 tools/testing/selftests/timens/clock_nanosleep.c
>  create mode 100644 tools/testing/selftests/timens/config
>  create mode 100644 tools/testing/selftests/timens/log.h
>  create mode 100644 tools/testing/selftests/timens/procfs.c
>  create mode 100644 tools/testing/selftests/timens/timens.c
>  create mode 100644 tools/testing/selftests/timens/timer.c
>  create mode 100644 tools/testing/selftests/timens/timerfd.c

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-21 12:27 ` [RFC 00/20] ns: Introduce Time Namespace Eric W. Biederman
@ 2018-09-24 20:51   ` Andrey Vagin
  2018-09-24 22:02     ` Eric W. Biederman
  0 siblings, 1 reply; 59+ messages in thread
From: Andrey Vagin @ 2018-09-24 20:51 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Dmitry Safonov, linux-kernel, Dmitry Safonov, Adrian Reber,
	Andrey Vagin, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, Thomas Gleixner,
	containers, criu, linux-api, x86, Alexey Dobriyan,
	linux-kselftest

On Fri, Sep 21, 2018 at 02:27:29PM +0200, Eric W. Biederman wrote:
> Dmitry Safonov <dima@arista.com> writes:
> 
> > Discussions around time virtualization are there for a long time.
> > The first attempt to implement time namespace was in 2006 by Jeff Dike.
> > From that time, the topic appears on and off in various discussions.
> >
> > There are two main use cases for time namespaces:
> > 1. change date and time inside a container;
> > 2. adjust clocks for a container restored from a checkpoint.
> >
> > “It seems like this might be one of the last major obstacles keeping
> > migration from being used in production systems, given that not all
> > containers and connections can be migrated as long as a time dependency
> > is capable of messing it up.” (by github.com/dav-ell)
> >
> > The kernel provides access to several clocks: CLOCK_REALTIME,
> > CLOCK_MONOTONIC, CLOCK_BOOTTIME. Last two clocks are monotonous, but the
> > start points for them are not defined and are different for each running
> > system. When a container is migrated from one node to another, all
> > clocks have to be restored into consistent states; in other words, they
> > have to continue running from the same points where they have been
> > dumped.
> >
> > The main idea behind this patch set is adding per-namespace offsets for
> > system clocks. When a process in a non-root time namespace requests
> > time of a clock, a namespace offset is added to the current value of
> > this clock on a host and the sum is returned.
> >
> > All offsets are placed on a separate page, this allows up to map it as 
> > part of vvar into user processes and use offsets from vdso calls.
> >
> > Now offsets are implemented for CLOCK_MONOTONIC and CLOCK_BOOTTIME
> > clocks.
> >
> > Questions to discuss:
> >
> > * Clone flags exhaustion. Currently there is only one unused clone flag
> > bit left, and it may be worth to use it to extend arguments of the clone
> > system call.
> >
> > * Realtime clock implementation details:
> >   Is having a simple offset enough?
> >   What to do when date and time is changed on the host?
> >   Is there a need to adjust vfs modification and creation times? 
> >   Implementation for adjtime() syscall.
> 
> Overall I support this effort.  In my quick skim this code looked good.

Hi Eric,

Thank you for the feedback.

> 
> My feeling is that we need to be able to support running ntpd and
> support one namespace doing googles smoothing of leap seconds while
> another namespace takes the leap second.
> 
> What I was imagining when I was last thinking about this was one
> instance of struct timekeeper aka tk_core per time namespace.  That
> structure already keeps offsets for all of the various clocks from
> the kerne internal time sources.  What would be needed would be to
> pass in an appropriate time namespace pointer.
> 
> I could be completely wrong as I have not take the time to completely
> trace through the code.  Have you looked at pushing the time namespace
> down as far as tk_core?
> 
> What I think would be the big advantage (besides ntp working) is that
> the bulk of the code could be reused.  Allowing testing of the kernel's
> time code by setting up a new time namespace.  So a person in production
> could setup a time namespace with the time set ahead a little  bit and
> be able to verify that the kernel handles the upcoming leap second
> properly.
>

It is an interesting idea, but I have a few questions:

1. Does it mean that timekeeping_update() will be called for each
namespace? This functions is called periodically, it updates times on the
timekeeper structure, updates vsyscall_gtod_data, etc. What will be an
overhead of this?

2. What will we do with vdso? It looks like we will have to have a
separate vsyscall_gtod_data for each ns and update each of them
separately.

> 
> 
> I don't know about the vfs.  I think the danger is being able to write
> dates in the future or in the past.  It appears that utimes(2) and
> utimesnat(2) already allow this except for status change.  So it is
> possible we simply don't care.  I seem to remember that what nfs does
> is take the time stamp from the host writing to the file.
> 
> I think the guide for filesystem timestamps should be to first ensure
> we don't introduce security issues, and then do what distributed
> filesystems do when dealing with hosts with different clocks.
> 
> Given those those two guidlines above I don't think there is a need to
> change timestamsp the way the user namespace changes uid when displayed.
> 
> 
> 
> As for the hardware like the real time clock we definitely should not
> let a root in a time namespace change it.  We might even be able to get
> away with leaving the real time clock out of the time namespace.  If not
> we need to be very careful how the real time clock is abstracted.  I
> would start by leaving the real time clock hardware out of the time
> namespace and see if there is any part of userspace that cares.
> 
> Eric
> 
> > Cc: Dmitry Safonov <0x7f454c46@gmail.com>
> > Cc: Adrian Reber <adrian@lisas.de>
> > Cc: Andrei Vagin <avagin@openvz.org>
> > Cc: Andy Lutomirski <luto@kernel.org>
> > Cc: Christian Brauner <christian.brauner@ubuntu.com>
> > Cc: Cyrill Gorcunov <gorcunov@openvz.org>
> > Cc: "Eric W. Biederman" <ebiederm@xmission.com>
> > Cc: "H. Peter Anvin" <hpa@zytor.com> 
> > Cc: Ingo Molnar <mingo@redhat.com>
> > Cc: Jeff Dike <jdike@addtoit.com>
> > Cc: Oleg Nesterov <oleg@redhat.com>
> > Cc: Pavel Emelyanov <xemul@virtuozzo.com>
> > Cc: Shuah Khan <shuah@kernel.org>
> > Cc: Thomas Gleixner <tglx@linutronix.de>
> > Cc: containers@lists.linux-foundation.org
> > Cc: criu@openvz.org
> > Cc: linux-api@vger.kernel.org
> > Cc: x86@kernel.org
> >
> > Andrei Vagin (12):
> >   ns: Introduce Time Namespace
> >   timens: Add timens_offsets
> >   timens: Introduce CLOCK_MONOTONIC offsets
> >   timens: Introduce CLOCK_BOOTTIME offset
> >   timerfd/timens: Take into account ns clock offsets
> >   kernel: Take into account timens clock offsets in clock_nanosleep
> >   x86/vdso/timens: Add offsets page in vvar
> >   x86/vdso: Use set_normalized_timespec() to avoid 32 bit overflow
> >   posix-timers/timens: Take into account clock offsets
> >   selftest/timens: Add test for timerfd
> >   selftest/timens: Add test for clock_nanosleep
> >   timens/selftest: Add timer offsets test
> >
> > Dmitry Safonov (8):
> >   timens: Shift /proc/uptime
> >   x86/vdso: Restrict splitting vvar vma
> >   x86/vdso: Purge timens page on setns()/unshare()/clone()
> >   x86/vdso: Look for vvar vma to purge timens page
> >   timens: Add align for timens_offsets
> >   timens: Optimize zero-offsets
> >   selftest: Add Time Namespace test for supported clocks
> >   timens/selftest: Add procfs selftest
> >
> >  arch/Kconfig                                     |   5 +
> >  arch/x86/Kconfig                                 |   1 +
> >  arch/x86/entry/vdso/vclock_gettime.c             |  52 +++++
> >  arch/x86/entry/vdso/vdso-layout.lds.S            |   9 +-
> >  arch/x86/entry/vdso/vdso2c.c                     |   3 +
> >  arch/x86/entry/vdso/vma.c                        |  67 +++++++
> >  arch/x86/include/asm/vdso.h                      |   2 +
> >  fs/proc/namespaces.c                             |   3 +
> >  fs/proc/uptime.c                                 |   3 +
> >  fs/timerfd.c                                     |  16 +-
> >  include/linux/nsproxy.h                          |   1 +
> >  include/linux/proc_ns.h                          |   1 +
> >  include/linux/time_namespace.h                   |  72 +++++++
> >  include/linux/timens_offsets.h                   |  25 +++
> >  include/linux/user_namespace.h                   |   1 +
> >  include/uapi/linux/sched.h                       |   1 +
> >  init/Kconfig                                     |   8 +
> >  kernel/Makefile                                  |   1 +
> >  kernel/fork.c                                    |   3 +-
> >  kernel/nsproxy.c                                 |  19 +-
> >  kernel/time/hrtimer.c                            |   8 +
> >  kernel/time/posix-timers.c                       |  89 ++++++++-
> >  kernel/time/posix-timers.h                       |   2 +
> >  kernel/time_namespace.c                          | 230 +++++++++++++++++++++++
> >  tools/testing/selftests/timens/.gitignore        |   5 +
> >  tools/testing/selftests/timens/Makefile          |   6 +
> >  tools/testing/selftests/timens/clock_nanosleep.c |  98 ++++++++++
> >  tools/testing/selftests/timens/config            |   1 +
> >  tools/testing/selftests/timens/log.h             |  21 +++
> >  tools/testing/selftests/timens/procfs.c          | 145 ++++++++++++++
> >  tools/testing/selftests/timens/timens.c          | 196 +++++++++++++++++++
> >  tools/testing/selftests/timens/timer.c           |  95 ++++++++++
> >  tools/testing/selftests/timens/timerfd.c         |  96 ++++++++++
> >  33 files changed, 1272 insertions(+), 13 deletions(-)
> >  create mode 100644 include/linux/time_namespace.h
> >  create mode 100644 include/linux/timens_offsets.h
> >  create mode 100644 kernel/time_namespace.c
> >  create mode 100644 tools/testing/selftests/timens/.gitignore
> >  create mode 100644 tools/testing/selftests/timens/Makefile
> >  create mode 100644 tools/testing/selftests/timens/clock_nanosleep.c
> >  create mode 100644 tools/testing/selftests/timens/config
> >  create mode 100644 tools/testing/selftests/timens/log.h
> >  create mode 100644 tools/testing/selftests/timens/procfs.c
> >  create mode 100644 tools/testing/selftests/timens/timens.c
> >  create mode 100644 tools/testing/selftests/timens/timer.c
> >  create mode 100644 tools/testing/selftests/timens/timerfd.c

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 16/20] selftest: Add Time Namespace test for supported clocks
  2018-09-19 20:50 ` [RFC 16/20] selftest: Add Time Namespace test for supported clocks Dmitry Safonov
@ 2018-09-24 21:36   ` Shuah Khan
  0 siblings, 0 replies; 59+ messages in thread
From: Shuah Khan @ 2018-09-24 21:36 UTC (permalink / raw)
  To: Dmitry Safonov, linux-kernel
  Cc: Dmitry Safonov, Adrian Reber, Andrei Vagin, Andy Lutomirski,
	Christian Brauner, Cyrill Gorcunov, Eric W. Biederman,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov,
	Pavel Emelyanov, Thomas Gleixner, containers, criu, linux-api,
	x86, linux-kselftest, Shuah Khan

Hi Dmitry,

Thanks for adding tests with the kernel changes.

On 09/19/2018 02:50 PM, Dmitry Safonov wrote:
> This test checks that all supported clocks can be changed by
> clock_settime.

It would good to elaborate a bit more on the nature of the tests in the
here. Also a few things to consider.

I noticed that this test isn't added to selftests/Makefile as TARGET. If it is
an oversight, please make that change as well. If not, it is fine.

Please make sure if the test can't be run because of unmet dependencies, the test
will exit with KSFT_SKIP as opposed to an error. Dependencies include configuration,
privilege, any other unsupported conditions.

This is a comment applies to all the test patches in this series.

thanks,
-- Shuah

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-24 20:51   ` Andrey Vagin
@ 2018-09-24 22:02     ` Eric W. Biederman
  2018-09-25  1:42       ` Andrey Vagin
  0 siblings, 1 reply; 59+ messages in thread
From: Eric W. Biederman @ 2018-09-24 22:02 UTC (permalink / raw)
  To: Andrey Vagin
  Cc: Dmitry Safonov, linux-kernel, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov,
	Pavel Emelianov, Shuah Khan, Thomas Gleixner, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

Andrey Vagin <avagin@virtuozzo.com> writes:

> On Fri, Sep 21, 2018 at 02:27:29PM +0200, Eric W. Biederman wrote:
>> Dmitry Safonov <dima@arista.com> writes:
>> 
>> > Discussions around time virtualization are there for a long time.
>> > The first attempt to implement time namespace was in 2006 by Jeff Dike.
>> > From that time, the topic appears on and off in various discussions.
>> >
>> > There are two main use cases for time namespaces:
>> > 1. change date and time inside a container;
>> > 2. adjust clocks for a container restored from a checkpoint.
>> >
>> > “It seems like this might be one of the last major obstacles keeping
>> > migration from being used in production systems, given that not all
>> > containers and connections can be migrated as long as a time dependency
>> > is capable of messing it up.” (by github.com/dav-ell)
>> >
>> > The kernel provides access to several clocks: CLOCK_REALTIME,
>> > CLOCK_MONOTONIC, CLOCK_BOOTTIME. Last two clocks are monotonous, but the
>> > start points for them are not defined and are different for each running
>> > system. When a container is migrated from one node to another, all
>> > clocks have to be restored into consistent states; in other words, they
>> > have to continue running from the same points where they have been
>> > dumped.
>> >
>> > The main idea behind this patch set is adding per-namespace offsets for
>> > system clocks. When a process in a non-root time namespace requests
>> > time of a clock, a namespace offset is added to the current value of
>> > this clock on a host and the sum is returned.
>> >
>> > All offsets are placed on a separate page, this allows up to map it as 
>> > part of vvar into user processes and use offsets from vdso calls.
>> >
>> > Now offsets are implemented for CLOCK_MONOTONIC and CLOCK_BOOTTIME
>> > clocks.
>> >
>> > Questions to discuss:
>> >
>> > * Clone flags exhaustion. Currently there is only one unused clone flag
>> > bit left, and it may be worth to use it to extend arguments of the clone
>> > system call.
>> >
>> > * Realtime clock implementation details:
>> >   Is having a simple offset enough?
>> >   What to do when date and time is changed on the host?
>> >   Is there a need to adjust vfs modification and creation times? 
>> >   Implementation for adjtime() syscall.
>> 
>> Overall I support this effort.  In my quick skim this code looked good.
>
> Hi Eric,
>
> Thank you for the feedback.
>
>> 
>> My feeling is that we need to be able to support running ntpd and
>> support one namespace doing googles smoothing of leap seconds while
>> another namespace takes the leap second.
>> 
>> What I was imagining when I was last thinking about this was one
>> instance of struct timekeeper aka tk_core per time namespace.  That
>> structure already keeps offsets for all of the various clocks from
>> the kerne internal time sources.  What would be needed would be to
>> pass in an appropriate time namespace pointer.
>> 
>> I could be completely wrong as I have not take the time to completely
>> trace through the code.  Have you looked at pushing the time namespace
>> down as far as tk_core?
>> 
>> What I think would be the big advantage (besides ntp working) is that
>> the bulk of the code could be reused.  Allowing testing of the kernel's
>> time code by setting up a new time namespace.  So a person in production
>> could setup a time namespace with the time set ahead a little  bit and
>> be able to verify that the kernel handles the upcoming leap second
>> properly.
>>
>
> It is an interesting idea, but I have a few questions:
>
> 1. Does it mean that timekeeping_update() will be called for each
> namespace? This functions is called periodically, it updates times on the
> timekeeper structure, updates vsyscall_gtod_data, etc. What will be an
> overhead of this?

I don't know if periodically is a proper characterization.  There may be
a code path that does that.  But from what I can see timekeeping_update
is the guts of settimeofday (and a few related functions).

So it appears to make sense for timekeeping_update to be per namespace.

Hmm.  Looking at what is updated in the vsyscall_gtod_data it does
look like you would have to periodically update things, but I don't know
big that period would be.  As long as the period is reasonably large,
or the time namespaces were sufficiently deschronized it should not
be a problem.  But that is the class of problem that could make
my ideal impractical if there is measuarable overhead.

Where were you seeing timekeeping_update being called periodically?

> 2. What will we do with vdso? It looks like we will have to have a
> separate vsyscall_gtod_data for each ns and update each of them
> separately.

Yes.  But you don't have to have introduce another variable just make
certain vsyscall_gtod_data is a page aligned thing per time namespace.

If I read the summary of the existing patchset something very similiar
is already going on.

Each process would only map one.  And unshare of the time namespace
would need to act like the pid namespace or be limited to only being
allowed when there is only a single task using the mm.

Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-24 22:02     ` Eric W. Biederman
@ 2018-09-25  1:42       ` Andrey Vagin
  2018-09-26 17:36         ` Eric W. Biederman
  0 siblings, 1 reply; 59+ messages in thread
From: Andrey Vagin @ 2018-09-25  1:42 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Dmitry Safonov, linux-kernel, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov,
	Pavel Emelianov, Shuah Khan, Thomas Gleixner, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

On Tue, Sep 25, 2018 at 12:02:32AM +0200, Eric W. Biederman wrote:
> Andrey Vagin <avagin@virtuozzo.com> writes:
> 
> > On Fri, Sep 21, 2018 at 02:27:29PM +0200, Eric W. Biederman wrote:
> >> Dmitry Safonov <dima@arista.com> writes:
> >> 
> >> > Discussions around time virtualization are there for a long time.
> >> > The first attempt to implement time namespace was in 2006 by Jeff Dike.
> >> > From that time, the topic appears on and off in various discussions.
> >> >
> >> > There are two main use cases for time namespaces:
> >> > 1. change date and time inside a container;
> >> > 2. adjust clocks for a container restored from a checkpoint.
> >> >
> >> > “It seems like this might be one of the last major obstacles keeping
> >> > migration from being used in production systems, given that not all
> >> > containers and connections can be migrated as long as a time dependency
> >> > is capable of messing it up.” (by github.com/dav-ell)
> >> >
> >> > The kernel provides access to several clocks: CLOCK_REALTIME,
> >> > CLOCK_MONOTONIC, CLOCK_BOOTTIME. Last two clocks are monotonous, but the
> >> > start points for them are not defined and are different for each running
> >> > system. When a container is migrated from one node to another, all
> >> > clocks have to be restored into consistent states; in other words, they
> >> > have to continue running from the same points where they have been
> >> > dumped.
> >> >
> >> > The main idea behind this patch set is adding per-namespace offsets for
> >> > system clocks. When a process in a non-root time namespace requests
> >> > time of a clock, a namespace offset is added to the current value of
> >> > this clock on a host and the sum is returned.
> >> >
> >> > All offsets are placed on a separate page, this allows up to map it as 
> >> > part of vvar into user processes and use offsets from vdso calls.
> >> >
> >> > Now offsets are implemented for CLOCK_MONOTONIC and CLOCK_BOOTTIME
> >> > clocks.
> >> >
> >> > Questions to discuss:
> >> >
> >> > * Clone flags exhaustion. Currently there is only one unused clone flag
> >> > bit left, and it may be worth to use it to extend arguments of the clone
> >> > system call.
> >> >
> >> > * Realtime clock implementation details:
> >> >   Is having a simple offset enough?
> >> >   What to do when date and time is changed on the host?
> >> >   Is there a need to adjust vfs modification and creation times? 
> >> >   Implementation for adjtime() syscall.
> >> 
> >> Overall I support this effort.  In my quick skim this code looked good.
> >
> > Hi Eric,
> >
> > Thank you for the feedback.
> >
> >> 
> >> My feeling is that we need to be able to support running ntpd and
> >> support one namespace doing googles smoothing of leap seconds while
> >> another namespace takes the leap second.
> >> 
> >> What I was imagining when I was last thinking about this was one
> >> instance of struct timekeeper aka tk_core per time namespace.  That
> >> structure already keeps offsets for all of the various clocks from
> >> the kerne internal time sources.  What would be needed would be to
> >> pass in an appropriate time namespace pointer.
> >> 
> >> I could be completely wrong as I have not take the time to completely
> >> trace through the code.  Have you looked at pushing the time namespace
> >> down as far as tk_core?
> >> 
> >> What I think would be the big advantage (besides ntp working) is that
> >> the bulk of the code could be reused.  Allowing testing of the kernel's
> >> time code by setting up a new time namespace.  So a person in production
> >> could setup a time namespace with the time set ahead a little  bit and
> >> be able to verify that the kernel handles the upcoming leap second
> >> properly.
> >>
> >
> > It is an interesting idea, but I have a few questions:
> >
> > 1. Does it mean that timekeeping_update() will be called for each
> > namespace? This functions is called periodically, it updates times on the
> > timekeeper structure, updates vsyscall_gtod_data, etc. What will be an
> > overhead of this?
> 
> I don't know if periodically is a proper characterization.  There may be
> a code path that does that.  But from what I can see timekeeping_update
> is the guts of settimeofday (and a few related functions).
> 
> So it appears to make sense for timekeeping_update to be per namespace.
> 
> Hmm.  Looking at what is updated in the vsyscall_gtod_data it does
> look like you would have to periodically update things, but I don't know
> big that period would be.  As long as the period is reasonably large,
> or the time namespaces were sufficiently deschronized it should not
> be a problem.  But that is the class of problem that could make
> my ideal impractical if there is measuarable overhead.
> 
> Where were you seeing timekeeping_update being called periodically?

timekeeping_update() is called HZ times per-second:

[   67.912858]  timekeeping_update.cold.26+0x5/0xa
[   67.913332]  timekeeping_advance+0x361/0x5c0
[   67.913857]  ? tick_sched_do_timer+0x55/0x70
[   67.914409]  ? tick_sched_do_timer+0x70/0x70
[   67.914947]  tick_sched_do_timer+0x55/0x70
[   67.915505]  tick_sched_timer+0x27/0x70
[   67.916042]  __hrtimer_run_queues+0x10f/0x440
[   67.916639]  hrtimer_interrupt+0x100/0x220
[   67.917305]  smp_apic_timer_interrupt+0x79/0x220
[   67.918030]  apic_timer_interrupt+0xf/0x20

> 
> > 2. What will we do with vdso? It looks like we will have to have a
> > separate vsyscall_gtod_data for each ns and update each of them
> > separately.
> 
> Yes.  But you don't have to have introduce another variable just make
> certain vsyscall_gtod_data is a page aligned thing per time namespace.
> 
> If I read the summary of the existing patchset something very similiar
> is already going on.

I mean vsyscall_gtod_data has some data which are often updated. There
are timestamps for monotonic and wall clocks. clock_gettime() reads a
time stamp from vsyscall_gtod_data and then use tsc to approximate the
current value of a clock.

Actually, this is not the second question, it is a part of the first
question. update_vsyscall() is called from timekeeping_update().

> 
> Each process would only map one.  And unshare of the time namespace
> would need to act like the pid namespace or be limited to only being
> allowed when there is only a single task using the mm.
> 
> Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-25  1:42       ` Andrey Vagin
@ 2018-09-26 17:36         ` Eric W. Biederman
  2018-09-26 17:59           ` Dmitry Safonov
  2018-09-27 21:30           ` Thomas Gleixner
  0 siblings, 2 replies; 59+ messages in thread
From: Eric W. Biederman @ 2018-09-26 17:36 UTC (permalink / raw)
  To: Andrey Vagin
  Cc: Dmitry Safonov, linux-kernel, Dmitry Safonov, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov,
	Pavel Emelianov, Shuah Khan, Thomas Gleixner, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

Andrey Vagin <avagin@virtuozzo.com> writes:

> On Tue, Sep 25, 2018 at 12:02:32AM +0200, Eric W. Biederman wrote:
>> Andrey Vagin <avagin@virtuozzo.com> writes:
>> 
>> > On Fri, Sep 21, 2018 at 02:27:29PM +0200, Eric W. Biederman wrote:
>> >> Dmitry Safonov <dima@arista.com> writes:
>> >> 
>> >> > Discussions around time virtualization are there for a long time.
>> >> > The first attempt to implement time namespace was in 2006 by Jeff Dike.
>> >> > From that time, the topic appears on and off in various discussions.
>> >> >
>> >> > There are two main use cases for time namespaces:
>> >> > 1. change date and time inside a container;
>> >> > 2. adjust clocks for a container restored from a checkpoint.
>> >> >
>> >> > “It seems like this might be one of the last major obstacles keeping
>> >> > migration from being used in production systems, given that not all
>> >> > containers and connections can be migrated as long as a time dependency
>> >> > is capable of messing it up.” (by github.com/dav-ell)
>> >> >
>> >> > The kernel provides access to several clocks: CLOCK_REALTIME,
>> >> > CLOCK_MONOTONIC, CLOCK_BOOTTIME. Last two clocks are monotonous, but the
>> >> > start points for them are not defined and are different for each running
>> >> > system. When a container is migrated from one node to another, all
>> >> > clocks have to be restored into consistent states; in other words, they
>> >> > have to continue running from the same points where they have been
>> >> > dumped.
>> >> >
>> >> > The main idea behind this patch set is adding per-namespace offsets for
>> >> > system clocks. When a process in a non-root time namespace requests
>> >> > time of a clock, a namespace offset is added to the current value of
>> >> > this clock on a host and the sum is returned.
>> >> >
>> >> > All offsets are placed on a separate page, this allows up to map it as 
>> >> > part of vvar into user processes and use offsets from vdso calls.
>> >> >
>> >> > Now offsets are implemented for CLOCK_MONOTONIC and CLOCK_BOOTTIME
>> >> > clocks.
>> >> >
>> >> > Questions to discuss:
>> >> >
>> >> > * Clone flags exhaustion. Currently there is only one unused clone flag
>> >> > bit left, and it may be worth to use it to extend arguments of the clone
>> >> > system call.
>> >> >
>> >> > * Realtime clock implementation details:
>> >> >   Is having a simple offset enough?
>> >> >   What to do when date and time is changed on the host?
>> >> >   Is there a need to adjust vfs modification and creation times? 
>> >> >   Implementation for adjtime() syscall.
>> >> 
>> >> Overall I support this effort.  In my quick skim this code looked good.
>> >
>> > Hi Eric,
>> >
>> > Thank you for the feedback.
>> >
>> >> 
>> >> My feeling is that we need to be able to support running ntpd and
>> >> support one namespace doing googles smoothing of leap seconds while
>> >> another namespace takes the leap second.
>> >> 
>> >> What I was imagining when I was last thinking about this was one
>> >> instance of struct timekeeper aka tk_core per time namespace.  That
>> >> structure already keeps offsets for all of the various clocks from
>> >> the kerne internal time sources.  What would be needed would be to
>> >> pass in an appropriate time namespace pointer.
>> >> 
>> >> I could be completely wrong as I have not take the time to completely
>> >> trace through the code.  Have you looked at pushing the time namespace
>> >> down as far as tk_core?
>> >> 
>> >> What I think would be the big advantage (besides ntp working) is that
>> >> the bulk of the code could be reused.  Allowing testing of the kernel's
>> >> time code by setting up a new time namespace.  So a person in production
>> >> could setup a time namespace with the time set ahead a little  bit and
>> >> be able to verify that the kernel handles the upcoming leap second
>> >> properly.
>> >>
>> >
>> > It is an interesting idea, but I have a few questions:
>> >
>> > 1. Does it mean that timekeeping_update() will be called for each
>> > namespace? This functions is called periodically, it updates times on the
>> > timekeeper structure, updates vsyscall_gtod_data, etc. What will be an
>> > overhead of this?
>> 
>> I don't know if periodically is a proper characterization.  There may be
>> a code path that does that.  But from what I can see timekeeping_update
>> is the guts of settimeofday (and a few related functions).
>> 
>> So it appears to make sense for timekeeping_update to be per namespace.
>> 
>> Hmm.  Looking at what is updated in the vsyscall_gtod_data it does
>> look like you would have to periodically update things, but I don't know
>> big that period would be.  As long as the period is reasonably large,
>> or the time namespaces were sufficiently deschronized it should not
>> be a problem.  But that is the class of problem that could make
>> my ideal impractical if there is measuarable overhead.
>> 
>> Where were you seeing timekeeping_update being called periodically?
>
> timekeeping_update() is called HZ times per-second:
>
> [   67.912858]  timekeeping_update.cold.26+0x5/0xa
> [   67.913332]  timekeeping_advance+0x361/0x5c0
> [   67.913857]  ? tick_sched_do_timer+0x55/0x70
> [   67.914409]  ? tick_sched_do_timer+0x70/0x70
> [   67.914947]  tick_sched_do_timer+0x55/0x70
> [   67.915505]  tick_sched_timer+0x27/0x70
> [   67.916042]  __hrtimer_run_queues+0x10f/0x440
> [   67.916639]  hrtimer_interrupt+0x100/0x220
> [   67.917305]  smp_apic_timer_interrupt+0x79/0x220
> [   67.918030]  apic_timer_interrupt+0xf/0x20

Interesting.

Reading the code the calling sequence there is:
tick_sched_do_timer
   tick_do_update_jiffies64
      update_wall_time
          timekeeping_advance
             timekeepging_update

If I read that properly under the right nohz circumstances that update
can be delayed indefinitely.

So I think we could prototype a time namespace that was per
timekeeping_update and just had update_wall_time iterate through
all of the time namespaces.

I don't think the naive version would scale to very many time
namespaces.

At the same time using the techniques from the nohz work and a little
smarts I expect we could get the code to scale.

I think this direction is definitely worth exploring.  My experience
with namespaces is that if we don't get the advanced features working
there is little to no interest from the core developers of the code,
and the namespaces don't solve additional problems.  Which makes the
namespace a hard sell.  Especially when it does not solve problems the
developers of the subsystem have.

The advantage of timekeeping_update per time namespace is that it allows
different lengths of seconds per time namespace.  Which allows testing
ntp and the kernel in interesting ways while still having a working
production configuration on the same system.

Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-26 17:36         ` Eric W. Biederman
@ 2018-09-26 17:59           ` Dmitry Safonov
  2018-09-27 21:30           ` Thomas Gleixner
  1 sibling, 0 replies; 59+ messages in thread
From: Dmitry Safonov @ 2018-09-26 17:59 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Andrey Vagin, Dmitry Safonov, linux-kernel, Adrian Reber,
	Andy Lutomirski, Christian Brauner, Cyrill Gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov,
	Pavel Emelianov, Shuah Khan, Thomas Gleixner, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

2018-09-26 18:36 GMT+01:00 Eric W. Biederman <ebiederm@xmission.com>:
> The advantage of timekeeping_update per time namespace is that it allows
> different lengths of seconds per time namespace.  Which allows testing
> ntp and the kernel in interesting ways while still having a working
> production configuration on the same system.

Just a quick note: the different length of second per namespace sounds
very interesting in my POV, I remember I've seen this article:
http://publish.illinois.edu/science-of-security-lablet/files/2014/05/DSSnet-A-Smart-Grid-Modeling-Platform-Combining-Electrical-Power-Distributtion-System-Simulation-and-Software-Defined-Networking-Emulation.pdf

And their realisation with a simulation of time going with different speed
per-pid  (with vdso disabled):
https://github.com/littlepretty/VirtualTimeKernel

Thanks,
             Dmitry

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-26 17:36         ` Eric W. Biederman
  2018-09-26 17:59           ` Dmitry Safonov
@ 2018-09-27 21:30           ` Thomas Gleixner
  2018-09-27 21:41             ` Thomas Gleixner
  2018-09-28 17:03             ` Eric W. Biederman
  1 sibling, 2 replies; 59+ messages in thread
From: Thomas Gleixner @ 2018-09-27 21:30 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Andrey Vagin, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

On Wed, 26 Sep 2018, Eric W. Biederman wrote:
> Reading the code the calling sequence there is:
> tick_sched_do_timer
>    tick_do_update_jiffies64
>       update_wall_time
>           timekeeping_advance
>              timekeepging_update
> 
> If I read that properly under the right nohz circumstances that update
> can be delayed indefinitely.
> 
> So I think we could prototype a time namespace that was per
> timekeeping_update and just had update_wall_time iterate through
> all of the time namespaces.

Please don't go there. timekeeping_update() is already heavy and walking
through a gazillion of namespaces will just make it horrible,

> I don't think the naive version would scale to very many time
> namespaces.

:)

> At the same time using the techniques from the nohz work and a little
> smarts I expect we could get the code to scale.

You'd need to invoke the update when the namespace is switched in and
hasn't been updated since the last tick happened. That might be doable, but
you also need to take the wraparound constraints of the underlying
clocksources into account, which again can cause walking all name spaces
when they are all idle long enough.

From there it becomes hairy, because it's not only timekeeping,
i.e. reading time, this is also affecting all timers which are armed from a
namespace.

That gets really ugly because when you do settimeofday() or adjtimex() for
a particular namespace, then you have to search for all armed timers of
that namespace and adjust them.

The original posix timer code had the same issue because it mapped the
clock realtime timers to the timer wheel so any setting of the clock caused
a full walk of all armed timers, disarming, adjusting and requeing
them. That's horrible not only performance wise, it's also a locking
nightmare of all sorts.

Add time skew via NTP/PTP into the picture and you might have to adjust
timers as well, because you need to guarantee that they are not expiring
early.

I haven't looked through Dimitry's patches yet, but I don't see how this
can work at all without introducing subtle issues all over the place.

Thanks,

	tglx




^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-27 21:30           ` Thomas Gleixner
@ 2018-09-27 21:41             ` Thomas Gleixner
  2018-10-01 23:20               ` Andrey Vagin
  2018-09-28 17:03             ` Eric W. Biederman
  1 sibling, 1 reply; 59+ messages in thread
From: Thomas Gleixner @ 2018-09-27 21:41 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Andrey Vagin, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

On Thu, 27 Sep 2018, Thomas Gleixner wrote:
> Add time skew via NTP/PTP into the picture and you might have to adjust
> timers as well, because you need to guarantee that they are not expiring
> early.
> 
> I haven't looked through Dimitry's patches yet, but I don't see how this
> can work at all without introducing subtle issues all over the place.

And just a quick scan tells me that this is broken. Timers will expire
early or late. The latter is acceptible to some extent, but larger delays
might come with surprise. Expiring early is an absolute nono.

Thanks,

	tglx


^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-27 21:30           ` Thomas Gleixner
  2018-09-27 21:41             ` Thomas Gleixner
@ 2018-09-28 17:03             ` Eric W. Biederman
  2018-09-28 19:32               ` Thomas Gleixner
  2018-10-21  1:41               ` [RFC 00/20] ns: Introduce Time Namespace Andrei Vagin
  1 sibling, 2 replies; 59+ messages in thread
From: Eric W. Biederman @ 2018-09-28 17:03 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Andrey Vagin, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

Thomas Gleixner <tglx@linutronix.de> writes:

> On Wed, 26 Sep 2018, Eric W. Biederman wrote:
>> Reading the code the calling sequence there is:
>> tick_sched_do_timer
>>    tick_do_update_jiffies64
>>       update_wall_time
>>           timekeeping_advance
>>              timekeepging_update
>> 
>> If I read that properly under the right nohz circumstances that update
>> can be delayed indefinitely.
>> 
>> So I think we could prototype a time namespace that was per
>> timekeeping_update and just had update_wall_time iterate through
>> all of the time namespaces.
>
> Please don't go there. timekeeping_update() is already heavy and walking
> through a gazillion of namespaces will just make it horrible,
>
>> I don't think the naive version would scale to very many time
>> namespaces.
>
> :)
>
>> At the same time using the techniques from the nohz work and a little
>> smarts I expect we could get the code to scale.
>
> You'd need to invoke the update when the namespace is switched in and
> hasn't been updated since the last tick happened. That might be doable, but
> you also need to take the wraparound constraints of the underlying
> clocksources into account, which again can cause walking all name spaces
> when they are all idle long enough.

The wrap around constraints being how long before the time sources wrap
around so you have to read them once per wrap around?  I have not dug
deeply enough into the code to see that yet.

> From there it becomes hairy, because it's not only timekeeping,
> i.e. reading time, this is also affecting all timers which are armed from a
> namespace.
>
> That gets really ugly because when you do settimeofday() or adjtimex() for
> a particular namespace, then you have to search for all armed timers of
> that namespace and adjust them.
>
> The original posix timer code had the same issue because it mapped the
> clock realtime timers to the timer wheel so any setting of the clock caused
> a full walk of all armed timers, disarming, adjusting and requeing
> them. That's horrible not only performance wise, it's also a locking
> nightmare of all sorts.
>
> Add time skew via NTP/PTP into the picture and you might have to adjust
> timers as well, because you need to guarantee that they are not expiring
> early.
>
> I haven't looked through Dimitry's patches yet, but I don't see how this
> can work at all without introducing subtle issues all over the place.

Then it sounds like this will take some more digging.

Please pardon me for thinking out load.

There are one or more time sources that we use to compute the time
and for each time source we have a conversion from ticks of the
time source to nanoseconds.

Each time source needs to be sampled at least once per wrap-around
and something incremented so that we don't loose time when looking
at that time source.

There are several clocks presented to userspace and they all share the
same length of second and are all fundamentally offsets from
CLOCK_MONOTONIC.

I see two fundamental driving cases for a time namespace.
1) Migration from one node to another node in a cluster in almost
   real time.

   The problem is that CLOCK_MONOTONIC between nodes in the cluster
   has not relation ship to each other (except a synchronized length of
   the second).  So applications that migrate can see CLOCK_MONOTONIC
   and CLOCK_BOOTTIME go backwards.

   This is the truly pressing problem and adding some kind of offset
   sounds like it would be the solution.  Possibly by allowing a boot
   time synchronization of CLOCK_BOOTTIME and CLOCK_MONOTONIC.

2) Dealing with two separate time management domains.  Say a machine
   that needes to deal with both something inside of google where they
   slew time to avoid leap time seconds and something in the outside
   world proper UTC time is kept as an offset from TAI with the
   occasional leap seconds.

   In the later case it would fundamentally require having seconds of
   different length.


A pure 64bit nanoseond counter is good for 500 years.  So 64bit
variables can be used to hold time, and everything can be converted from
there.

This suggests we can for ticks have two values.
- The number of ticks from the time source.
- The number of times the ticks would have rolled over.

That sounds like it may be a little simplistic as it would require being
very diligent about firing a timer exactly at rollover and not losing
that, but for a handwaving argument is probably enough to generate
a 64bit tick counter.

If the focus is on a 64bit tick counter then what update_wall_time
has to do is very limited.  Just deal the accounting needed to cope with
tick rollover.

Getting the actual time looks like it would be as simple as now, with
perhaps an extra addition to account for the number of times the tick
counter has rolled over.  With limited precision arithmetic and various
optimizations I don't think it is that simple to implement but it feels
like it should be very little extra work.

For timers my inclination would be to assume no adjustments to the
current time parameters and set the timer to go off then.   If the time
on the appropriate clock has been changed since the timer was set and
the timer is going off early reschedule so the timer fires at the
appropriate time.

With the above I think it is theoretically possible to build a time
namespace that supports multiple lengths of second, and does not have
much overhead.

Not that I think a final implementation would necessary look like what I
have described. I just think it is possible with extreme care to evolve
the current code base into something that can efficiently handle
multiple time domains with slightly different lenghts of second.

Thomas does it sound like I am completely out of touch with reality?

It does though sound like it is going to take some serious digging
through the code to understand how what everything does and how and why
everthing works the way it does.  Not something grafted on top with just
a cursory understanding of how the code works.

Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 01/20] ns: Introduce Time Namespace
  2018-09-19 20:50 ` [RFC 01/20] " Dmitry Safonov
@ 2018-09-28 18:20   ` Laurent Vivier
  0 siblings, 0 replies; 59+ messages in thread
From: Laurent Vivier @ 2018-09-28 18:20 UTC (permalink / raw)
  To: Dmitry Safonov, linux-kernel
  Cc: Dmitry Safonov, Andrei Vagin, Adrian Reber, Andy Lutomirski,
	Christian Brauner, Cyrill Gorcunov, Eric W. Biederman,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov,
	Pavel Emelyanov, Shuah Khan, Thomas Gleixner, containers, criu,
	linux-api, x86

On 19/09/2018 22:50, Dmitry Safonov wrote:
> From: Andrei Vagin <avagin@openvz.org>
> 
> Time Namespace isolates clock values.
> 
> The kernel provides access to several clocks CLOCK_REALTIME,
> CLOCK_MONOTONIC, CLOCK_BOOTTIME, etc.
> 
> CLOCK_REALTIME
>       System-wide  clock  that  measures real (i.e., wall-clock) time.
> 
> CLOCK_MONOTONIC
>       Clock that cannot be set and represents monotonic time since
>       some  unspecified starting point.
> 
> CLOCK_BOOTTIME
>       Identical  to  CLOCK_MONOTONIC, except it also includes any time
>       that the system is suspended.
> 
> For many users, the time namespace means the ability to changes time in
> a container (CLOCK_REALTIME).
> 
> But in a context of the checkpoint/restore functionality, monotonic and
> bootime clocks become interesting. Both clocks are monotonic with
> unspecified staring points. These clocks are widely used to measure time
> slices, set timers. After restoring or migrating processes, we have to
> guarantee that they never go backward. In an ideal case, the behavior of
> these clocks should be the same as for a case when a whole system is
> suspended. All this means that we need to be able to set CLOCK_MONOTONIC
> and CLOCK_BOOTTIME clocks, what can be done by adding per-namespace
> offsets for clocks.
> 
> Link: https://criu.org/Time_namespace
> Link: https://lists.openvz.org/pipermail/criu/2018-June/041504.html
> Signed-off-by: Andrei Vagin <avagin@openvz.org>
> Co-developed-by: Dmitry Safonov <dima@arista.com>
> Signed-off-by: Dmitry Safonov <dima@arista.com>
> ---
>  fs/proc/namespaces.c           |   3 +
>  include/linux/nsproxy.h        |   1 +
>  include/linux/proc_ns.h        |   1 +
>  include/linux/time_namespace.h |  59 ++++++++++++++
>  include/linux/user_namespace.h |   1 +
>  include/uapi/linux/sched.h     |   1 +
>  init/Kconfig                   |   7 ++
>  kernel/Makefile                |   1 +
>  kernel/fork.c                  |   3 +-
>  kernel/nsproxy.c               |  19 ++++-
>  kernel/time_namespace.c        | 169 +++++++++++++++++++++++++++++++++++++++++
>  11 files changed, 262 insertions(+), 3 deletions(-)
>  create mode 100644 include/linux/time_namespace.h
>  create mode 100644 kernel/time_namespace.c
> 
...
> diff --git a/kernel/time_namespace.c b/kernel/time_namespace.c
> new file mode 100644
> index 000000000000..902cd9c22159
> --- /dev/null
> +++ b/kernel/time_namespace.c
...
> +
> +struct time_namespace init_time_ns = {
> +	.kref = KREF_INIT(2),
> +	.user_ns = &init_user_ns,
> +	.ns.inum = PROC_UTS_INIT_INO,

Do you mean PROC_TIME_INIT_INO?

> +#ifdef CONFIG_UTS_NS
> +	.ns.ops = &timens_operations,
> +#endif

Do you mean CONFIG_TIME_NS?

Thanks,
Laurent

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-28 17:03             ` Eric W. Biederman
@ 2018-09-28 19:32               ` Thomas Gleixner
  2018-10-01  9:05                 ` Eric W. Biederman
  2018-10-01  9:15                 ` Setting monotonic time? Eric W. Biederman
  2018-10-21  1:41               ` [RFC 00/20] ns: Introduce Time Namespace Andrei Vagin
  1 sibling, 2 replies; 59+ messages in thread
From: Thomas Gleixner @ 2018-09-28 19:32 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Andrey Vagin, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

Eric,

On Fri, 28 Sep 2018, Eric W. Biederman wrote:
> Thomas Gleixner <tglx@linutronix.de> writes:
> > On Wed, 26 Sep 2018, Eric W. Biederman wrote:
> >> At the same time using the techniques from the nohz work and a little
> >> smarts I expect we could get the code to scale.
> >
> > You'd need to invoke the update when the namespace is switched in and
> > hasn't been updated since the last tick happened. That might be doable, but
> > you also need to take the wraparound constraints of the underlying
> > clocksources into account, which again can cause walking all name spaces
> > when they are all idle long enough.
> 
> The wrap around constraints being how long before the time sources wrap
> around so you have to read them once per wrap around?  I have not dug
> deeply enough into the code to see that yet.

It's done by limiting the NOHZ idle time when all CPUs are going into deep
sleep for a long time, i.e. we make sure that at least one CPU comes back
sufficiently _before_ the wraparound happens and invokes the update
function.

It's not so much a problem for TSC, but not every clocksource the kernel
supports has wraparound times in the range of hundreds of years.

But yes, your idea of keeping track of wraparounds might work. Tricky, but
looks feasible on first sight, but we should be aware of the dragons.

> Please pardon me for thinking out load.
> 
> There are one or more time sources that we use to compute the time
> and for each time source we have a conversion from ticks of the
> time source to nanoseconds.
> 
> Each time source needs to be sampled at least once per wrap-around
> and something incremented so that we don't loose time when looking
> at that time source.
> 
> There are several clocks presented to userspace and they all share the
> same length of second and are all fundamentally offsets from
> CLOCK_MONOTONIC.

Yes. That's the readout side. This one is doable. But now look at timers.

If you arm the timer from a name space, then it needs to be converted to
host time in order to sort it into the hrtimer queue and at some point arm
the clockevent device for it. This works as long as host and name space
time have a constant offset and the same skew.

Once the name space time has a different skew this falls apart because the
armed timer will either expire late or early.

Late might be acceptable, early violates the spec. You could do an extra
check for rescheduling it, if it's early, but that requires to store the
name space time accessor in the hrtimer itself because not every timer
expiry happens so that it can be checked in the name space context (think
signal based timers). We need to add this extra magic right into
__hrtimer_run_queues() which is called from the hard and soft interrupt. We
really don't want to touch all relevant callbacks or syscalls. The latter
is not sufficient anyway for signal based timer delivery.

That's going to be interesting in terms of synchronization and might also
cause substantial overhead at least for the timers which belong to name
spaces.

But that also means that anything which is early can and probably will
cause rearming of the timer hardware possibly for a very short delta. We
need to think about whether this can be abused to create interrupt storms.

Now if you accept a bit late, which I'm not really happy about, then you
surely won't accept very late, i.e. hours, days. But that can happen when
settimeofday() comes into play. Right now with a single time domain, this
is easy. When settimeofday() or adjtimex() makes time jump, we just go and
reprogramm the hardware timers accordingly, which might also result in
immediate expiry of timers.

But this does not help for time jumps in name spaces because the timer is
enqueued on the host time base.

And no, we should not think about creating per name space hrtimer queues
and then have to walk through all of them for finding the first expiring
timer in order to arm the hardware. That cannot scale.

Walking all hrtimer bases on all CPUs and check all queued timers whether
they belong to the affected name space does not scale either.

So we'd need to keep track of queued timers belonging to a name space and
then just handle them. Interesting locking problem and also a scalability
issue because this might need to be done on all online CPUs. Haven't
thought it through, but it makes me shudder.

> I see two fundamental driving cases for a time namespace.

<SNIP>

I completely understand the problem you are trying to solve and yes, the
read out of time should be a solvable problem.

> For timers my inclination would be to assume no adjustments to the
> current time parameters and set the timer to go off then.   If the time
> on the appropriate clock has been changed since the timer was set and
> the timer is going off early reschedule so the timer fires at the
> appropriate time.

See above.

> Not that I think a final implementation would necessary look like what I
> have described. I just think it is possible with extreme care to evolve
> the current code base into something that can efficiently handle
> multiple time domains with slightly different lenghts of second.

Yes, it really needs some serious thoughts and timekeeping is a really
complex place especially with NTP/PTP in play. We had quite some quality
time to make it work correctly and reliably, now you come along and want to
transform it into a multidimensional puzzle. :)

> Thomas does it sound like I am completely out of touch with reality?

Which reality are you talking about? :)

> It does though sound like it is going to take some serious digging
> through the code to understand how what everything does and how and why
> everthing works the way it does.  Not something grafted on top with just
> a cursory understanding of how the code works.

I fully agree and I'm happy to help with explanations and ideas and being
the one who shoots holes into yours.

Thanks,

	tglx

^ permalink raw reply	[flat|nested] 59+ messages in thread

* [LKP] [posix] 25217c6e39: BUG:KASAN:null-ptr-deref_in_c
  2018-09-19 20:50 ` [RFC 13/20] posix-timers/timens: Take into account clock offsets Dmitry Safonov
@ 2018-09-30  3:11   ` kernel test robot
  0 siblings, 0 replies; 59+ messages in thread
From: kernel test robot @ 2018-09-30  3:11 UTC (permalink / raw)
  To: Dmitry Safonov
  Cc: linux-kernel, Dmitry Safonov, Andrei Vagin, Dmitry Safonov,
	Adrian Reber, Andrei Vagin, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, Eric W. Biederman, H. Peter Anvin, Ingo Molnar,
	Jeff Dike, Oleg Nesterov, Pavel Emelyanov, Shuah Khan,
	Thomas Gleixner, containers, criu, linux-api, x86, lkp

[-- Attachment #1: Type: text/plain, Size: 6047 bytes --]

FYI, we noticed the following commit (built with gcc-4.9):

commit: 25217c6e39560eeadb338e0140ee215410200b67 ("[RFC 13/20] posix-timers/timens: Take into account clock offsets")
url: https://github.com/0day-ci/linux/commits/Dmitry-Safonov/ns-Introduce-Time-Namespace/20180920-194322


in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu qemu64,+ssse3 -smp 4 -m 8G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+---------------------------------------------------------+------------+------------+
|                                                         | fb1111e1a5 | 25217c6e39 |
+---------------------------------------------------------+------------+------------+
| boot_successes                                          | 0          | 0          |
| boot_failures                                           | 27         | 16         |
| BUG:KASAN:null-ptr-deref_in_p                           | 21         |            |
| BUG:unable_to_handle_kernel                             | 21         | 8          |
| Oops:#[##]                                              | 21         | 8          |
| RIP:posix_get_boottime                                  | 21         |            |
| Kernel_panic-not_syncing:Fatal_exception                | 21         | 8          |
| invoked_oom-killer:gfp_mask=0x                          | 6          | 6          |
| Mem-Info                                                | 6          | 6          |
| Out_of_memory_and_no_killable_processes                 | 6          | 6          |
| Kernel_panic-not_syncing:System_is_deadlocked_on_memory | 6          | 6          |
| BUG:KASAN:null-ptr-deref_in_c                           | 0          | 8          |
| RIP:common_timens_adjust                                | 0          | 8          |
| BUG:kernel_hang_in_boot_stage                           | 0          | 2          |
+---------------------------------------------------------+------------+------------+



[  546.918732] BUG: KASAN: null-ptr-deref in common_timens_adjust+0x4e/0x270
[  546.919884] Read of size 8 at addr 0000000000000030 by task systemd/1
[  546.920963] 
[  546.921249] CPU: 1 PID: 1 Comm: systemd Not tainted 4.19.0-rc4-00108-g25217c6 #1
[  546.922492] Call Trace:
[  546.922944]  dump_stack+0x138/0x1d8
[  546.923554]  ? common_timens_adjust+0x4e/0x270
[  546.924310]  kasan_report+0x26e/0x390
[  546.924959]  __asan_load8+0x54/0x90
[  546.925569]  common_timens_adjust+0x4e/0x270
[  546.926311]  __x64_sys_clock_gettime+0x10b/0x140
[  546.927114]  do_syscall_64+0x1c3/0x280
[  546.927779]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  546.928648] RIP: 0033:0x7ffc593a1a28
[  546.929269] Code: 2d 00 ca 9a 3b 83 c2 01 48 3d ff c9 9a 3b 77 ef 48 01 16 45 85 c0 48 89 46 08 0f 85 4b ff ff ff 48 63 ff b8 e4 00 00 00 0f 05 <5b> 5d c3 85 ff 75 ef 44 8b 0d 4a c6 ff ff 41 f6 c1 01 0f 85 e6 01
[  546.932344] RSP: 002b:00007ffc5935d878 EFLAGS: 00000202 ORIG_RAX: 00000000000000e4
[  546.933619] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffc593a1a28
[  546.934818] RDX: ffffffffffffffff RSI: 00007ffc5935d8b0 RDI: 0000000000000007
[  546.936012] RBP: 00007ffc5935d880 R08: 0000000000000002 R09: 000000000003b1e6
[  546.937205] R10: 0014e3686b800000 R11: 0000000000000202 R12: 00007ffc5935d8f0
[  546.938401] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  546.939622] ==================================================================
[  546.940817] Disabling lock debugging due to kernel taint
[  546.942018] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
[  546.943328] PGD 0 P4D 0 
[  546.943791] Oops: 0000 [#1] SMP KASAN PTI
[  546.944486] CPU: 1 PID: 1 Comm: systemd Tainted: G    B             4.19.0-rc4-00108-g25217c6 #1
[  546.945962] RIP: 0010:common_timens_adjust+0x4e/0x270
[  546.946819] Code: 00 06 00 00 48 83 ec 18 e8 ef 48 20 00 48 8b 9b 00 06 00 00 48 8d 7b 30 e8 df 48 20 00 48 8b 5b 30 48 8d 7b 30 e8 d2 48 20 00 <4c> 8b 6b 30 be 08 00 00 00 4d 85 ed 41 0f 94 c6 4c 89 f3 83 e3 01
[  546.949841] RSP: 0018:ffff8801f5987e90 EFLAGS: 00010286
[  546.950722] RAX: ffff8801f597e100 RBX: 0000000000000000 RCX: ffffffff812f2e5a
[  546.951906] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000246
[  546.953094] RBP: ffff8801f5987ed0 R08: fffffbfff066a22a R09: fffffbfff066a22a
[  546.954275] R10: 0000000000000001 R11: fffffbfff066a229 R12: ffff8801f5987ee0
[  546.955460] R13: 0000000000000007 R14: 00007ffc5935d8b0 R15: 0000000000000007
[  546.956653] FS:  00007f1603e4d940(0000) GS:ffff8801f7000000(0000) knlGS:0000000000000000
[  546.957994] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  546.958955] CR2: 0000000000000030 CR3: 00000001ddcfa000 CR4: 00000000000006a0
[  546.960133] Call Trace:
[  546.960577]  __x64_sys_clock_gettime+0x10b/0x140
[  546.961363]  do_syscall_64+0x1c3/0x280
[  546.962015]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  546.962862] RIP: 0033:0x7ffc593a1a28
[  546.963472] Code: 2d 00 ca 9a 3b 83 c2 01 48 3d ff c9 9a 3b 77 ef 48 01 16 45 85 c0 48 89 46 08 0f 85 4b ff ff ff 48 63 ff b8 e4 00 00 00 0f 05 <5b> 5d c3 85 ff 75 ef 44 8b 0d 4a c6 ff ff 41 f6 c1 01 0f 85 e6 01
[  546.966532] RSP: 002b:00007ffc5935d878 EFLAGS: 00000202 ORIG_RAX: 00000000000000e4
[  546.967796] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffc593a1a28
[  546.968990] RDX: ffffffffffffffff RSI: 00007ffc5935d8b0 RDI: 0000000000000007
[  546.970168] RBP: 00007ffc5935d880 R08: 0000000000000002 R09: 000000000003b1e6
[  546.971337] R10: 0014e3686b800000 R11: 0000000000000202 R12: 00007ffc5935d8f0
[  546.972516] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  546.973708] Modules linked in: autofs4
[  546.974354] CR2: 0000000000000030
[  546.974960] ---[ end trace f820e59e021274ff ]---


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email



Thanks,
Rong Chen

[-- Attachment #2: config-4.19.0-rc4-00108-g25217c6 --]
[-- Type: text/plain, Size: 102881 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 4.19.0-rc4 Kernel Configuration
#

#
# Compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
#
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=40904
CONFIG_CLANG_VERSION=0
CONFIG_CONSTRUCTORS=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
CONFIG_KERNEL_XZ=y
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_SIM=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_GENERIC_IRQ_DEBUGFS=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
# CONFIG_NO_HZ_IDLE is not set
CONFIG_NO_HZ_FULL=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y

#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_FORCE=y
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FAST_NO_HZ is not set
CONFIG_RCU_NOCB_CPU=y
CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=20
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_ARCH_SUPPORTS_INT128=y
# CONFIG_NUMA_BALANCING is not set
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_PERF is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_NAMESPACES is not set
CONFIG_CHECKPOINT_RESTORE=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_BPF=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
# CONFIG_SYSFS_SYSCALL is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_PRINTK_NMI=y
CONFIG_BUG=y
# CONFIG_PCSPKR_PLATFORM is not set
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
# CONFIG_EVENTFD is not set
CONFIG_SHMEM=y
CONFIG_AIO=y
# CONFIG_ADVISE_SYSCALLS is not set
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
# CONFIG_BPF_SYSCALL is not set
# CONFIG_USERFAULTFD is not set
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_RSEQ=y
# CONFIG_DEBUG_RSEQ is not set
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y
CONFIG_PC104=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
CONFIG_DEBUG_PERF_USE_VMALLOC=y
# CONFIG_VM_EVENT_COUNTERS is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
# CONFIG_SLAB_MERGE_DEFAULT is not set
CONFIG_SLAB_FREELIST_RANDOM=y
CONFIG_SLAB_FREELIST_HARDENED=y
# CONFIG_SLUB_CPU_PARTIAL is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_FILTER_PGPROT=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_KASAN_SHADOW_OFFSET=0xdffffc0000000000
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DYNAMIC_PHYSICAL_MASK=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
# CONFIG_ZONE_DMA is not set
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
# CONFIG_X86_X2APIC is not set
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
CONFIG_RETPOLINE=y
CONFIG_INTEL_RDT=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_VSMP is not set
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_MID is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=m
# CONFIG_IOSF_MBI_DEBUG is not set
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_QUEUED_LOCK_STAT=y
CONFIG_XEN=y
# CONFIG_XEN_PV is not set
# CONFIG_XEN_PVHVM is not set
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
CONFIG_KVM_GUEST=y
# CONFIG_KVM_DEBUG_FS is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_JAILHOUSE_GUEST=y
CONFIG_NO_BOOTMEM=y
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
# CONFIG_DMI is not set
CONFIG_GART_IOMMU=y
CONFIG_CALGARY_IOMMU=y
CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS_RANGE_BEGIN=2
CONFIG_NR_CPUS_RANGE_END=8192
CONFIG_NR_CPUS_DEFAULT=64
CONFIG_NR_CPUS=64
CONFIG_SCHED_SMT=y
# CONFIG_SCHED_MC is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
# CONFIG_X86_MCE is not set

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=m
# CONFIG_PERF_EVENTS_INTEL_RAPL is not set
CONFIG_PERF_EVENTS_INTEL_CSTATE=m
CONFIG_PERF_EVENTS_AMD_POWER=m
CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
# CONFIG_I8K is not set
# CONFIG_MICROCODE is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=m
# CONFIG_X86_5LEVEL is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_AMD_MEM_ENCRYPT=y
# CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is not set
CONFIG_ARCH_USE_MEMREMAP_PROT=y
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
CONFIG_NUMA_EMU=y
CONFIG_NODES_SHIFT=6
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
# CONFIG_X86_PAT is not set
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
# CONFIG_X86_INTEL_UMIP is not set
CONFIG_X86_INTEL_MPX=y
# CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS is not set
# CONFIG_EFI is not set
# CONFIG_SECCOMP is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
# CONFIG_KEXEC is not set
# CONFIG_KEXEC_FILE is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x1000000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_HOTPLUG_CPU=y
CONFIG_BOOTPARAM_HOTPLUG_CPU0=y
CONFIG_DEBUG_HOTPLUG_CPU0=y
# CONFIG_COMPAT_VDSO is not set
CONFIG_LEGACY_VSYSCALL_EMULATE=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
CONFIG_HAVE_LIVEPATCH=y
CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=y

#
# Power management and ACPI options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_SUSPEND_SKIP_SYNC is not set
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
CONFIG_PM_AUTOSLEEP=y
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
CONFIG_PM_TEST_SUSPEND=y
CONFIG_PM_SLEEP_DEBUG=y
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
CONFIG_PM_CLK=y
CONFIG_PM_GENERIC_DOMAINS=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_PROCFS_POWER is not set
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_TAD is not set
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=y
# CONFIG_ACPI_IPMI is not set
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
CONFIG_ACPI_CUSTOM_DSDT_FILE=""
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_DPTF_POWER is not set
# CONFIG_PMIC_OPREGION is not set
# CONFIG_ACPI_CONFIGFS is not set
CONFIG_X86_PM_TIMER=y
# CONFIG_SFI is not set

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_INTEL_IDLE is not set

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
# CONFIG_PCI_MMCONFIG is not set
CONFIG_PCI_XEN=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
CONFIG_PCIEPORTBUS=y
# CONFIG_PCIEAER is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEBUG=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
# CONFIG_PCIE_PTM is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_PCI_PF_STUB=m
CONFIG_XEN_PCIDEV_FRONTEND=m
CONFIG_PCI_ATS=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
# CONFIG_PCI_PRI is not set
CONFIG_PCI_PASID=y
CONFIG_PCI_LABEL=y
# CONFIG_HOTPLUG_PCI is not set

#
# PCI controller drivers
#

#
# Cadence PCIe controllers support
#
CONFIG_VMD=m

#
# DesignWare PCI Core Support
#
CONFIG_PCIE_DW=y
CONFIG_PCIE_DW_EP=y
CONFIG_PCIE_DW_PLAT=y
# CONFIG_PCIE_DW_PLAT_HOST is not set
CONFIG_PCIE_DW_PLAT_EP=y

#
# PCI Endpoint
#
CONFIG_PCI_ENDPOINT=y
# CONFIG_PCI_ENDPOINT_CONFIGFS is not set
# CONFIG_PCI_EPF_TEST is not set

#
# PCI switch controller drivers
#
CONFIG_PCI_SW_SWITCHTEC=m
CONFIG_ISA_BUS=y
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set
# CONFIG_X86_SYSFB is not set

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
CONFIG_IA32_AOUT=m
CONFIG_X86_X32=y
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_HAVE_GENERIC_GUP=y

#
# Firmware Drivers
#
CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DELL_RBU=m
CONFIG_DCDBAS=m
# CONFIG_ISCSI_IBFT_FIND is not set
CONFIG_FW_CFG_SYSFS=y
# CONFIG_FW_CFG_SYSFS_CMDLINE is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# Tegra firmware driver
#
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
# CONFIG_KVM is not set
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# General architecture-dependent options
#
CONFIG_HOTPLUG_SMT=y
CONFIG_OPROFILE=m
CONFIG_OPROFILE_EVENT_MULTIPLEX=y
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
# CONFIG_KPROBES is not set
# CONFIG_JUMP_LABEL is not set
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_RCU_TABLE_FREE=y
CONFIG_HAVE_RCU_TABLE_INVALIDATE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
# CONFIG_STACKPROTECTOR is not set
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
CONFIG_HAVE_COPY_THREAD_TLS=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_ISA_BUS_API=y
CONFIG_ARCH_HAS_VDSO_TIME_NS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_ARCH_HAS_REFCOUNT=y
# CONFIG_REFCOUNT_FULL is not set
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y

#
# GCOV-based kernel profiling
#
CONFIG_GCOV_KERNEL=y
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# CONFIG_GCOV_PROFILE_ALL is not set
CONFIG_GCOV_FORMAT_4_7=y
CONFIG_PLUGIN_HOSTCC="g++"
CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_CYC_COMPLEXITY is not set
CONFIG_GCC_PLUGIN_LATENT_ENTROPY=y
# CONFIG_GCC_PLUGIN_STRUCTLEAK is not set
# CONFIG_GCC_PLUGIN_RANDSTRUCT is not set
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
# CONFIG_MODULE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
# CONFIG_TRIM_UNUSED_KSYMS is not set
CONFIG_MODULES_TREE_LOOKUP=y
# CONFIG_BLOCK is not set
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_COREDUMP is not set

#
# Memory Management options
#
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_TRANSPARENT_HUGEPAGE=y
# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
CONFIG_ARCH_WANTS_THP_SWAP=y
CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
CONFIG_CLEANCACHE=y
# CONFIG_CMA is not set
CONFIG_MEM_SOFT_DIRTY=y
CONFIG_ZPOOL=m
# CONFIG_ZBUD is not set
CONFIG_Z3FOLD=m
CONFIG_ZSMALLOC=m
# CONFIG_PGTABLE_MAPPING is not set
# CONFIG_ZSMALLOC_STAT is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_ZONE_DEVICE=y
CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
# CONFIG_PERCPU_STATS is not set
CONFIG_GUP_BENCHMARK=y
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_NET=y

#
# Networking options
#
# CONFIG_PACKET is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=m
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_INTERFACE is not set
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
# CONFIG_XFRM_STATISTICS is not set
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=y
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
CONFIG_INET_TUNNEL=y
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_INET_RAW_DIAG is not set
# CONFIG_INET_DIAG_DESTROY is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=y
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
# CONFIG_NETFILTER is not set
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
CONFIG_ATM=m
# CONFIG_ATM_CLIP is not set
CONFIG_ATM_LANE=m
# CONFIG_ATM_MPOA is not set
# CONFIG_ATM_BR2684 is not set
# CONFIG_L2TP is not set
CONFIG_STP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_HAVE_NET_DSA=y
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
CONFIG_DECNET=y
CONFIG_DECNET_ROUTER=y
CONFIG_LLC=m
# CONFIG_LLC2 is not set
CONFIG_ATALK=m
CONFIG_DEV_APPLETALK=m
CONFIG_IPDDP=m
# CONFIG_IPDDP_ENCAP is not set
# CONFIG_X25 is not set
CONFIG_LAPB=m
CONFIG_PHONET=y
# CONFIG_6LOWPAN is not set
CONFIG_IEEE802154=m
# CONFIG_IEEE802154_NL802154_EXPERIMENTAL is not set
# CONFIG_IEEE802154_SOCKET is not set
CONFIG_MAC802154=m
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=m
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_DIAG=m
# CONFIG_MPLS is not set
# CONFIG_NET_NSH is not set
CONFIG_HSR=m
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_NET_NCSI is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_JIT=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_DROP_MONITOR is not set
# CONFIG_HAMRADIO is not set
CONFIG_CAN=y
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
# CONFIG_CAN_GW is not set

#
# CAN Device Drivers
#
# CONFIG_CAN_VCAN is not set
CONFIG_CAN_VXCAN=m
CONFIG_CAN_SLCAN=m
CONFIG_CAN_DEV=m
# CONFIG_CAN_CALC_BITTIMING is not set
CONFIG_CAN_JANZ_ICAN3=m
# CONFIG_CAN_C_CAN is not set
# CONFIG_CAN_CC770 is not set
# CONFIG_CAN_IFI_CANFD is not set
# CONFIG_CAN_M_CAN is not set
# CONFIG_CAN_PEAK_PCIEFD is not set
# CONFIG_CAN_SJA1000 is not set
CONFIG_CAN_SOFTING=m
# CONFIG_CAN_DEBUG_DEVICES is not set
CONFIG_BT=m
CONFIG_BT_BREDR=y
# CONFIG_BT_RFCOMM is not set
CONFIG_BT_BNEP=y
# CONFIG_BT_BNEP_MC_FILTER is not set
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=m
CONFIG_BT_HS=y
CONFIG_BT_LE=y
CONFIG_BT_LEDS=y
# CONFIG_BT_SELFTEST is not set
CONFIG_BT_DEBUGFS=y

#
# Bluetooth device drivers
#
CONFIG_BT_QCA=m
CONFIG_BT_HCIBTSDIO=m
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_SERDEV=y
CONFIG_BT_HCIUART_H4=y
# CONFIG_BT_HCIUART_NOKIA is not set
CONFIG_BT_HCIUART_BCSP=y
# CONFIG_BT_HCIUART_ATH3K is not set
CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIUART_3WIRE=y
# CONFIG_BT_HCIUART_INTEL is not set
# CONFIG_BT_HCIUART_BCM is not set
# CONFIG_BT_HCIUART_RTL is not set
CONFIG_BT_HCIUART_QCA=y
# CONFIG_BT_HCIUART_AG6XX is not set
CONFIG_BT_HCIUART_MRVL=y
CONFIG_BT_HCIVHCI=m
# CONFIG_BT_MRVL is not set
CONFIG_BT_WILINK=m
CONFIG_BT_MTKUART=m
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set

#
# CFG80211 needs to be enabled for MAC80211
#
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=m
CONFIG_NET_9P_XEN=m
# CONFIG_NET_9P_DEBUG is not set
CONFIG_CAIF=m
CONFIG_CAIF_DEBUG=y
CONFIG_CAIF_NETDEV=m
# CONFIG_CAIF_USB is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
# CONFIG_LWTUNNEL is not set
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
# CONFIG_NET_DEVLINK is not set
CONFIG_MAY_USE_DEVLINK=y
CONFIG_FAILOVER=y
CONFIG_HAVE_EBPF_JIT=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
CONFIG_WANT_DEV_COREDUMP=y
# CONFIG_ALLOW_DEV_COREDUMP is not set
# CONFIG_DEBUG_DRIVER is not set
CONFIG_DEBUG_DEVRES=y
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_SYS_HYPERVISOR=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPMI=m
CONFIG_REGMAP_W1=m
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
CONFIG_DMA_FENCE_TRACE=y

#
# Bus devices
#
CONFIG_CONNECTOR=m
CONFIG_GNSS=y
CONFIG_GNSS_SERIAL=m
# CONFIG_GNSS_SIRF_SERIAL is not set
CONFIG_GNSS_UBX_SERIAL=m
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y

#
# Protocols
#
CONFIG_PNPACPI=y

#
# NVME Support
#

#
# Misc devices
#
CONFIG_SENSORS_LIS3LV02D=m
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
CONFIG_IBM_ASM=y
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=y
CONFIG_TIFM_CORE=y
# CONFIG_TIFM_7XX1 is not set
CONFIG_ICS932S401=m
# CONFIG_ENCLOSURE_SERVICES is not set
CONFIG_HP_ILO=y
# CONFIG_APDS9802ALS is not set
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=y
# CONFIG_HMC6352 is not set
CONFIG_DS1682=y
CONFIG_VMWARE_BALLOON=m
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
CONFIG_PCI_ENDPOINT_TEST=m
CONFIG_MISC_RTSX=m
CONFIG_C2PORT=m
# CONFIG_C2PORT_DURAMAR_2150 is not set

#
# EEPROM support
#
CONFIG_EEPROM_AT24=y
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=y
CONFIG_EEPROM_93CX6=m
CONFIG_EEPROM_IDT_89HPESX=y
CONFIG_CB710_CORE=m
# CONFIG_CB710_DEBUG is not set
CONFIG_CB710_DEBUG_ASSUMPTIONS=y

#
# Texas Instruments shared transport line discipline
#
CONFIG_TI_ST=m
CONFIG_SENSORS_LIS3_I2C=m
CONFIG_ALTERA_STAPL=m
CONFIG_INTEL_MEI=y
CONFIG_INTEL_MEI_ME=y
# CONFIG_INTEL_MEI_TXE is not set
CONFIG_VMWARE_VMCI=m

#
# Intel MIC & related support
#

#
# Intel MIC Bus Driver
#
CONFIG_INTEL_MIC_BUS=y

#
# SCIF Bus Driver
#
CONFIG_SCIF_BUS=y

#
# VOP Bus Driver
#
CONFIG_VOP_BUS=m

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCIF Driver
#

#
# Intel MIC Coprocessor State Management (COSM) Drivers
#

#
# VOP Driver
#
CONFIG_VOP=m
CONFIG_VHOST_RING=m
CONFIG_GENWQE=m
CONFIG_GENWQE_PLATFORM_ERROR_RECOVERY=0
CONFIG_ECHO=m
CONFIG_MISC_RTSX_PCI=m
CONFIG_HAVE_IDE=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_FUSION=y
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_LOGGING=y

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
CONFIG_MACINTOSH_DRIVERS=y
# CONFIG_MAC_EMUMOUSEBTN is not set
CONFIG_NETDEVICES=y
CONFIG_MII=y
# CONFIG_NET_CORE is not set
CONFIG_ARCNET=m
CONFIG_ARCNET_1201=m
CONFIG_ARCNET_1051=m
# CONFIG_ARCNET_RAW is not set
CONFIG_ARCNET_CAP=m
CONFIG_ARCNET_COM90xx=m
# CONFIG_ARCNET_COM90xxIO is not set
CONFIG_ARCNET_RIM_I=m
CONFIG_ARCNET_COM20020=m
CONFIG_ARCNET_COM20020_PCI=m
# CONFIG_ATM_DRIVERS is not set

#
# CAIF transport drivers
#
# CONFIG_CAIF_TTY is not set
CONFIG_CAIF_SPI_SLAVE=m
CONFIG_CAIF_SPI_SYNC=y
# CONFIG_CAIF_HSI is not set
# CONFIG_CAIF_VIRTIO is not set

#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
CONFIG_MDIO=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
CONFIG_NET_VENDOR_AGERE=y
CONFIG_ET131X=y
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
CONFIG_ALTERA_TSE=y
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
CONFIG_ATL2=y
# CONFIG_ATL1 is not set
CONFIG_ATL1E=m
# CONFIG_ATL1C is not set
CONFIG_ALX=y
# CONFIG_NET_VENDOR_AURORA is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
CONFIG_BCMGENET=y
CONFIG_BNX2=m
CONFIG_CNIC=m
CONFIG_TIGON3=y
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
CONFIG_BNXT=m
# CONFIG_BNXT_SRIOV is not set
# CONFIG_BNXT_FLOWER_OFFLOAD is not set
# CONFIG_BNXT_HWMON is not set
CONFIG_NET_VENDOR_BROCADE=y
CONFIG_BNA=m
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
# CONFIG_NET_VENDOR_CORTINA is not set
# CONFIG_CX_ECAT is not set
CONFIG_DNET=y
# CONFIG_NET_VENDOR_DEC is not set
CONFIG_NET_VENDOR_DLINK=y
CONFIG_DL2K=y
CONFIG_SUNDANCE=y
CONFIG_SUNDANCE_MMIO=y
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=y
CONFIG_E1000=y
CONFIG_E1000E=m
# CONFIG_E1000E_HWTS is not set
CONFIG_IGB=m
# CONFIG_IGB_HWMON is not set
CONFIG_IGB_DCA=y
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
CONFIG_IXGBE=m
CONFIG_IXGBE_HWMON=y
CONFIG_IXGBE_DCA=y
# CONFIG_IXGBEVF is not set
CONFIG_I40E=y
# CONFIG_I40EVF is not set
CONFIG_ICE=y
# CONFIG_FM10K is not set
# CONFIG_JME is not set
CONFIG_NET_VENDOR_MARVELL=y
CONFIG_MVMDIO=m
# CONFIG_SKGE is not set
CONFIG_SKY2=m
CONFIG_SKY2_DEBUG=y
# CONFIG_NET_VENDOR_MELLANOX is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
CONFIG_KS8851_MLL=m
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETERION=y
CONFIG_S2IO=m
CONFIG_VXGE=y
# CONFIG_VXGE_DEBUG_TRACE_ALL is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NI is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
CONFIG_NET_VENDOR_OKI=y
CONFIG_ETHOC=m
CONFIG_NET_VENDOR_PACKET_ENGINES=y
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=y
# CONFIG_NET_VENDOR_QLOGIC is not set
CONFIG_NET_VENDOR_QUALCOMM=y
CONFIG_QCOM_EMAC=y
CONFIG_RMNET=y
# CONFIG_NET_VENDOR_RDC is not set
CONFIG_NET_VENDOR_REALTEK=y
CONFIG_8139CP=m
# CONFIG_8139TOO is not set
CONFIG_R8169=m
# CONFIG_NET_VENDOR_RENESAS is not set
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SOLARFLARE=y
CONFIG_SFC=m
# CONFIG_SFC_MCDI_MON is not set
CONFIG_SFC_SRIOV=y
CONFIG_SFC_MCDI_LOGGING=y
CONFIG_SFC_FALCON=m
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_STMMAC_ETH=y
CONFIG_STMMAC_PLATFORM=m
CONFIG_DWMAC_GENERIC=m
CONFIG_STMMAC_PCI=m
# CONFIG_NET_VENDOR_SUN is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
CONFIG_DWC_XLGMAC=m
CONFIG_DWC_XLGMAC_PCI=m
CONFIG_NET_VENDOR_TEHUTI=y
CONFIG_TEHUTI=m
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
CONFIG_FDDI=m
CONFIG_DEFXX=m
# CONFIG_DEFXX_MMIO is not set
CONFIG_SKFP=m
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_MDIO_BCM_UNIMAC=y
CONFIG_MDIO_BITBANG=y
CONFIG_MDIO_CAVIUM=m
CONFIG_MDIO_GPIO=m
CONFIG_MDIO_MSCC_MIIM=m
CONFIG_MDIO_THUNDER=m
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
CONFIG_AQUANTIA_PHY=y
CONFIG_ASIX_PHY=m
# CONFIG_AT803X_PHY is not set
CONFIG_BCM7XXX_PHY=y
CONFIG_BCM87XX_PHY=m
CONFIG_BCM_NET_PHYLIB=y
# CONFIG_BROADCOM_PHY is not set
CONFIG_CICADA_PHY=m
CONFIG_CORTINA_PHY=m
# CONFIG_DAVICOM_PHY is not set
CONFIG_DP83822_PHY=m
CONFIG_DP83TC811_PHY=y
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
CONFIG_FIXED_PHY=y
CONFIG_ICPLUS_PHY=m
CONFIG_INTEL_XWAY_PHY=m
CONFIG_LSI_ET1011C_PHY=y
CONFIG_LXT_PHY=m
CONFIG_MARVELL_PHY=y
# CONFIG_MARVELL_10G_PHY is not set
CONFIG_MICREL_PHY=m
CONFIG_MICROCHIP_PHY=y
CONFIG_MICROCHIP_T1_PHY=y
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_NATIONAL_PHY is not set
CONFIG_QSEMI_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_RENESAS_PHY=m
# CONFIG_ROCKCHIP_PHY is not set
CONFIG_SMSC_PHY=y
# CONFIG_STE10XP is not set
CONFIG_TERANETICS_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_XILINX_GMII2RGMII=y
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOATM=m
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_SLIP=m
CONFIG_SLHC=m
# CONFIG_SLIP_COMPRESSED is not set
# CONFIG_SLIP_SMART is not set
CONFIG_SLIP_MODE_SLIP6=y

#
# Host-side USB support is needed for USB Network Adapter support
#
CONFIG_WLAN=y
# CONFIG_WIRELESS_WDS is not set
# CONFIG_WLAN_VENDOR_ADMTEK is not set
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K_PCI is not set
CONFIG_WLAN_VENDOR_ATMEL=y
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_WLAN_VENDOR_CISCO is not set
CONFIG_WLAN_VENDOR_INTEL=y
# CONFIG_WLAN_VENDOR_INTERSIL is not set
# CONFIG_WLAN_VENDOR_MARVELL is not set
CONFIG_WLAN_VENDOR_MEDIATEK=y
# CONFIG_WLAN_VENDOR_RALINK is not set
CONFIG_WLAN_VENDOR_REALTEK=y
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_WLAN_VENDOR_ST is not set
# CONFIG_WLAN_VENDOR_TI is not set
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_WLAN_VENDOR_QUANTENNA is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
CONFIG_WAN=y
CONFIG_LANMEDIA=m
CONFIG_HDLC=m
CONFIG_HDLC_RAW=m
CONFIG_HDLC_RAW_ETH=m
CONFIG_HDLC_CISCO=m
# CONFIG_HDLC_FR is not set
CONFIG_HDLC_PPP=m
CONFIG_HDLC_X25=m
# CONFIG_PCI200SYN is not set
# CONFIG_WANXL is not set
CONFIG_PC300TOO=m
CONFIG_FARSYNC=m
CONFIG_DSCC4=m
# CONFIG_DSCC4_PCISYNC is not set
CONFIG_DSCC4_PCI_RST=y
CONFIG_DLCI=m
CONFIG_DLCI_MAX=8
# CONFIG_SBNI is not set
# CONFIG_IEEE802154_DRIVERS is not set
CONFIG_XEN_NETDEV_FRONTEND=m
# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_THUNDERBOLT_NET is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=y
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=y
# CONFIG_INPUT_SPARSEKMAP is not set
CONFIG_INPUT_MATRIXKMAP=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=y
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADC is not set
CONFIG_KEYBOARD_ADP5588=y
CONFIG_KEYBOARD_ADP5589=m
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
CONFIG_KEYBOARD_DLINK_DIR685=y
CONFIG_KEYBOARD_LKKBD=m
CONFIG_KEYBOARD_GPIO=m
CONFIG_KEYBOARD_GPIO_POLLED=m
# CONFIG_KEYBOARD_TCA6416 is not set
CONFIG_KEYBOARD_TCA8418=m
CONFIG_KEYBOARD_MATRIX=m
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
CONFIG_KEYBOARD_MPR121=y
CONFIG_KEYBOARD_NEWTON=y
# CONFIG_KEYBOARD_OPENCORES is not set
CONFIG_KEYBOARD_SAMSUNG=m
CONFIG_KEYBOARD_STOWAWAY=y
CONFIG_KEYBOARD_SUNKBD=y
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
CONFIG_KEYBOARD_TWL4030=m
CONFIG_KEYBOARD_XTKBD=y
CONFIG_KEYBOARD_CROS_EC=m
# CONFIG_KEYBOARD_MTK_PMIC is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
# CONFIG_TABLET_USB_ACECAD is not set
# CONFIG_TABLET_USB_AIPTEK is not set
# CONFIG_TABLET_USB_HANWANG is not set
# CONFIG_TABLET_USB_KBTAB is not set
# CONFIG_TABLET_USB_PEGASUS is not set
CONFIG_TABLET_SERIAL_WACOM4=m
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_PROPERTIES=y
# CONFIG_TOUCHSCREEN_AD7879 is not set
CONFIG_TOUCHSCREEN_ADC=m
# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
CONFIG_TOUCHSCREEN_AUO_PIXCIR=m
CONFIG_TOUCHSCREEN_BU21013=m
CONFIG_TOUCHSCREEN_BU21029=y
# CONFIG_TOUCHSCREEN_CHIPONE_ICN8505 is not set
CONFIG_TOUCHSCREEN_CY8CTMG110=y
CONFIG_TOUCHSCREEN_CYTTSP_CORE=y
# CONFIG_TOUCHSCREEN_CYTTSP_I2C is not set
CONFIG_TOUCHSCREEN_CYTTSP4_CORE=y
# CONFIG_TOUCHSCREEN_CYTTSP4_I2C is not set
CONFIG_TOUCHSCREEN_DA9034=y
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
CONFIG_TOUCHSCREEN_HAMPSHIRE=y
CONFIG_TOUCHSCREEN_EETI=y
CONFIG_TOUCHSCREEN_EGALAX_SERIAL=y
CONFIG_TOUCHSCREEN_EXC3000=y
CONFIG_TOUCHSCREEN_FUJITSU=y
CONFIG_TOUCHSCREEN_GOODIX=y
CONFIG_TOUCHSCREEN_HIDEEP=y
CONFIG_TOUCHSCREEN_ILI210X=y
CONFIG_TOUCHSCREEN_S6SY761=m
CONFIG_TOUCHSCREEN_GUNZE=m
CONFIG_TOUCHSCREEN_EKTF2127=m
CONFIG_TOUCHSCREEN_ELAN=m
CONFIG_TOUCHSCREEN_ELO=y
CONFIG_TOUCHSCREEN_WACOM_W8001=y
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
CONFIG_TOUCHSCREEN_MMS114=m
CONFIG_TOUCHSCREEN_MELFAS_MIP4=y
# CONFIG_TOUCHSCREEN_MTOUCH is not set
CONFIG_TOUCHSCREEN_INEXIO=y
# CONFIG_TOUCHSCREEN_MK712 is not set
CONFIG_TOUCHSCREEN_PENMOUNT=m
CONFIG_TOUCHSCREEN_EDT_FT5X06=y
CONFIG_TOUCHSCREEN_TOUCHRIGHT=m
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_TI_AM335X_TSC is not set
CONFIG_TOUCHSCREEN_PIXCIR=y
CONFIG_TOUCHSCREEN_WDT87XX_I2C=y
# CONFIG_TOUCHSCREEN_WM831X is not set
# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
CONFIG_TOUCHSCREEN_MC13783=m
CONFIG_TOUCHSCREEN_TOUCHIT213=m
CONFIG_TOUCHSCREEN_TSC_SERIO=m
# CONFIG_TOUCHSCREEN_TSC2004 is not set
CONFIG_TOUCHSCREEN_TSC2007=y
CONFIG_TOUCHSCREEN_TSC2007_IIO=y
CONFIG_TOUCHSCREEN_RM_TS=y
CONFIG_TOUCHSCREEN_SILEAD=y
CONFIG_TOUCHSCREEN_SIS_I2C=m
# CONFIG_TOUCHSCREEN_ST1232 is not set
CONFIG_TOUCHSCREEN_STMFTS=m
CONFIG_TOUCHSCREEN_SX8654=y
# CONFIG_TOUCHSCREEN_TPS6507X is not set
CONFIG_TOUCHSCREEN_ZET6223=y
CONFIG_TOUCHSCREEN_ZFORCE=m
CONFIG_TOUCHSCREEN_ROHM_BU21023=y
# CONFIG_INPUT_MISC is not set
CONFIG_RMI4_CORE=y
# CONFIG_RMI4_I2C is not set
CONFIG_RMI4_SMB=y
# CONFIG_RMI4_F03 is not set
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
CONFIG_RMI4_F30=y
CONFIG_RMI4_F34=y
# CONFIG_RMI4_F55 is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
CONFIG_SERIO_PCIPS2=m
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
CONFIG_SERIO_ALTERA_PS2=m
CONFIG_SERIO_PS2MULT=y
CONFIG_SERIO_ARC_PS2=m
CONFIG_SERIO_GPIO_PS2=y
# CONFIG_USERIO is not set
CONFIG_GAMEPORT=y
CONFIG_GAMEPORT_NS558=m
CONFIG_GAMEPORT_L4=y
CONFIG_GAMEPORT_EMU10K1=y
CONFIG_GAMEPORT_FM801=y

#
# Character devices
#
CONFIG_TTY=y
# CONFIG_VT is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_ROCKETPORT=y
# CONFIG_CYCLADES is not set
# CONFIG_MOXA_INTELLIO is not set
CONFIG_MOXA_SMARTIO=m
CONFIG_SYNCLINK=y
CONFIG_SYNCLINKMP=y
# CONFIG_SYNCLINK_GT is not set
CONFIG_NOZOMI=y
# CONFIG_ISI is not set
# CONFIG_N_HDLC is not set
CONFIG_N_GSM=y
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVMEM is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
# CONFIG_SERIAL_8250_MEN_MCB is not set
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
# CONFIG_SERIAL_8250_MOXA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_SCCNXP is not set
CONFIG_SERIAL_SC16IS7XX_CORE=y
CONFIG_SERIAL_SC16IS7XX=y
CONFIG_SERIAL_SC16IS7XX_I2C=y
CONFIG_SERIAL_ALTERA_JTAGUART=m
CONFIG_SERIAL_ALTERA_UART=m
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
CONFIG_SERIAL_ARC=m
CONFIG_SERIAL_ARC_NR_PORTS=1
CONFIG_SERIAL_RP2=y
CONFIG_SERIAL_RP2_NR_UARTS=32
# CONFIG_SERIAL_FSL_LPUART is not set
CONFIG_SERIAL_MEN_Z135=m
CONFIG_SERIAL_DEV_BUS=y
CONFIG_SERIAL_DEV_CTRL_TTYPORT=y
CONFIG_TTY_PRINTK=m
CONFIG_HVC_DRIVER=y
# CONFIG_HVC_XEN is not set
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_SSIF=m
CONFIG_IPMI_WATCHDOG=m
# CONFIG_IPMI_POWEROFF is not set
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=y
CONFIG_HW_RANDOM_INTEL=m
CONFIG_HW_RANDOM_AMD=y
CONFIG_HW_RANDOM_VIA=y
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
CONFIG_APPLICOM=y
# CONFIG_MWAVE is not set
# CONFIG_HPET is not set
CONFIG_HANGCHECK_TIMER=y
# CONFIG_TCG_TPM is not set
CONFIG_TELCLOCK=y
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set
# CONFIG_RANDOM_TRUST_CPU is not set

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y

#
# Multiplexer I2C Chip support
#
CONFIG_I2C_MUX_GPIO=m
CONFIG_I2C_MUX_LTC4306=y
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
CONFIG_I2C_MUX_REG=m
# CONFIG_I2C_MUX_MLXCPLD is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
CONFIG_I2C_ALI1563=y
CONFIG_I2C_ALI15X3=y
CONFIG_I2C_AMD756=m
# CONFIG_I2C_AMD756_S4882 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_ISMT is not set
# CONFIG_I2C_PIIX4 is not set
CONFIG_I2C_NFORCE2=y
# CONFIG_I2C_NFORCE2_S4985 is not set
CONFIG_I2C_SIS5595=y
CONFIG_I2C_SIS630=m
CONFIG_I2C_SIS96X=y
CONFIG_I2C_VIA=y
CONFIG_I2C_VIAPRO=y

#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_CBUS_GPIO=y
CONFIG_I2C_DESIGNWARE_CORE=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y
CONFIG_I2C_DESIGNWARE_SLAVE=y
CONFIG_I2C_DESIGNWARE_PCI=y
CONFIG_I2C_EMEV2=m
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_KEMPLD is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=m
CONFIG_I2C_SIMTEC=y
CONFIG_I2C_XILINX=m

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_PARPORT_LIGHT=y
CONFIG_I2C_TAOS_EVM=m

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_MLXCPLD=m
CONFIG_I2C_CROS_EC_TUNNEL=m
# CONFIG_I2C_STUB is not set
CONFIG_I2C_SLAVE=y
CONFIG_I2C_SLAVE_EEPROM=m
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
CONFIG_SPMI=y
CONFIG_HSI=m
CONFIG_HSI_BOARDINFO=y

#
# HSI controllers
#

#
# HSI clients
#
CONFIG_HSI_CHAR=m
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
CONFIG_PPS_CLIENT_LDISC=y
CONFIG_PPS_CLIENT_GPIO=y

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_DP83640_PHY=y
CONFIG_PTP_1588_CLOCK_KVM=y
# CONFIG_PINCTRL is not set
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_GENERIC=y
CONFIG_GPIO_MAX730X=y

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_EXAR is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
CONFIG_GPIO_ICH=m
# CONFIG_GPIO_LYNXPOINT is not set
CONFIG_GPIO_MB86S7X=y
CONFIG_GPIO_MENZ127=y
CONFIG_GPIO_MOCKUP=y
# CONFIG_GPIO_VX855 is not set

#
# Port-mapped I/O GPIO drivers
#
CONFIG_GPIO_104_DIO_48E=y
# CONFIG_GPIO_104_IDIO_16 is not set
CONFIG_GPIO_104_IDI_48=m
CONFIG_GPIO_F7188X=y
CONFIG_GPIO_GPIO_MM=y
# CONFIG_GPIO_IT87 is not set
CONFIG_GPIO_SCH=m
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
CONFIG_GPIO_WS16C48=m

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
CONFIG_GPIO_MAX7300=y
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
CONFIG_GPIO_PCF857X=m
CONFIG_GPIO_TPIC2810=y

#
# MFD GPIO expanders
#
CONFIG_GPIO_BD9571MWV=y
CONFIG_GPIO_DA9055=y
CONFIG_GPIO_JANZ_TTL=m
CONFIG_GPIO_KEMPLD=m
# CONFIG_GPIO_LP873X is not set
CONFIG_GPIO_TPS65086=m
# CONFIG_GPIO_TPS65910 is not set
CONFIG_GPIO_TPS65912=m
# CONFIG_GPIO_TWL4030 is not set
CONFIG_GPIO_TWL6040=y
CONFIG_GPIO_WM831X=m
CONFIG_GPIO_WM8350=y
# CONFIG_GPIO_WM8994 is not set

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
CONFIG_GPIO_BT8XX=y
# CONFIG_GPIO_ML_IOH is not set
CONFIG_GPIO_PCI_IDIO_16=y
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set
CONFIG_W1=m
CONFIG_W1_CON=y

#
# 1-wire Bus Masters
#
# CONFIG_W1_MASTER_MATROX is not set
CONFIG_W1_MASTER_DS2482=m
CONFIG_W1_MASTER_DS1WM=m
# CONFIG_W1_MASTER_GPIO is not set

#
# 1-wire Slaves
#
CONFIG_W1_SLAVE_THERM=m
CONFIG_W1_SLAVE_SMEM=m
# CONFIG_W1_SLAVE_DS2405 is not set
CONFIG_W1_SLAVE_DS2408=m
CONFIG_W1_SLAVE_DS2408_READBACK=y
CONFIG_W1_SLAVE_DS2413=m
CONFIG_W1_SLAVE_DS2406=m
CONFIG_W1_SLAVE_DS2423=m
CONFIG_W1_SLAVE_DS2805=m
CONFIG_W1_SLAVE_DS2431=m
CONFIG_W1_SLAVE_DS2433=m
# CONFIG_W1_SLAVE_DS2433_CRC is not set
# CONFIG_W1_SLAVE_DS2438 is not set
CONFIG_W1_SLAVE_DS2780=m
CONFIG_W1_SLAVE_DS2781=m
# CONFIG_W1_SLAVE_DS28E04 is not set
CONFIG_W1_SLAVE_DS28E17=m
# CONFIG_POWER_AVS is not set
# CONFIG_POWER_RESET is not set
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_SUPPLY_DEBUG=y
CONFIG_PDA_POWER=m
CONFIG_GENERIC_ADC_BATTERY=y
# CONFIG_MAX8925_POWER is not set
CONFIG_WM831X_BACKUP=y
# CONFIG_WM831X_POWER is not set
CONFIG_WM8350_POWER=m
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_DS2760 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
CONFIG_BATTERY_DS2782=m
# CONFIG_BATTERY_SBS is not set
CONFIG_CHARGER_SBS=y
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
CONFIG_BATTERY_DA9030=m
CONFIG_CHARGER_DA9150=m
CONFIG_BATTERY_DA9150=m
CONFIG_CHARGER_AXP20X=m
CONFIG_BATTERY_AXP20X=m
CONFIG_AXP20X_POWER=m
CONFIG_AXP288_FUEL_GAUGE=y
CONFIG_BATTERY_MAX17040=y
CONFIG_BATTERY_MAX17042=y
CONFIG_BATTERY_MAX1721X=m
CONFIG_BATTERY_TWL4030_MADC=m
CONFIG_BATTERY_RX51=m
# CONFIG_CHARGER_MAX8903 is not set
CONFIG_CHARGER_TWL4030=y
# CONFIG_CHARGER_LP8727 is not set
CONFIG_CHARGER_GPIO=m
CONFIG_CHARGER_LTC3651=m
CONFIG_CHARGER_MAX14577=m
# CONFIG_CHARGER_BQ2415X is not set
CONFIG_CHARGER_BQ24190=m
CONFIG_CHARGER_BQ24257=m
CONFIG_CHARGER_BQ24735=y
# CONFIG_CHARGER_BQ25890 is not set
CONFIG_CHARGER_SMB347=m
CONFIG_CHARGER_TPS65090=m
CONFIG_BATTERY_GAUGE_LTC2941=y
CONFIG_BATTERY_RT5033=m
CONFIG_CHARGER_RT9455=y
# CONFIG_CHARGER_CROS_USBPD is not set
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
# CONFIG_SENSORS_ADT7475 is not set
CONFIG_SENSORS_ASC7621=m
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
CONFIG_SENSORS_FAM15H_POWER=m
CONFIG_SENSORS_APPLESMC=m
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ASPEED is not set
CONFIG_SENSORS_ATXP1=m
# CONFIG_SENSORS_DS620 is not set
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_DELL_SMM=m
CONFIG_SENSORS_DA9055=m
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_MC13783_ADC=m
CONFIG_SENSORS_FSCHMD=m
# CONFIG_SENSORS_FTSTEUTATES is not set
# CONFIG_SENSORS_GL518SM is not set
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_G760A=m
CONFIG_SENSORS_G762=m
CONFIG_SENSORS_HIH6130=m
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
# CONFIG_SENSORS_IIO_HWMON is not set
CONFIG_SENSORS_I5500=m
# CONFIG_SENSORS_CORETEMP is not set
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
CONFIG_SENSORS_LTC2990=m
# CONFIG_SENSORS_LTC4151 is not set
CONFIG_SENSORS_LTC4215=m
CONFIG_SENSORS_LTC4222=m
CONFIG_SENSORS_LTC4245=m
# CONFIG_SENSORS_LTC4260 is not set
CONFIG_SENSORS_LTC4261=m
CONFIG_SENSORS_MAX16065=m
# CONFIG_SENSORS_MAX1619 is not set
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
CONFIG_SENSORS_MAX6621=m
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6642=m
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
CONFIG_SENSORS_MAX31790=m
CONFIG_SENSORS_MCP3021=m
CONFIG_SENSORS_MLXREG_FAN=m
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_MENF21BMC_HWMON is not set
# CONFIG_SENSORS_LM63 is not set
CONFIG_SENSORS_LM73=m
# CONFIG_SENSORS_LM75 is not set
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
# CONFIG_SENSORS_LM93 is not set
CONFIG_SENSORS_LM95234=m
CONFIG_SENSORS_LM95241=m
# CONFIG_SENSORS_LM95245 is not set
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_NTC_THERMISTOR=m
CONFIG_SENSORS_NCT6683=m
CONFIG_SENSORS_NCT6775=m
CONFIG_SENSORS_NCT7802=m
CONFIG_SENSORS_NCT7904=m
# CONFIG_SENSORS_NPCM7XX is not set
CONFIG_SENSORS_PCF8591=m
CONFIG_PMBUS=m
CONFIG_SENSORS_PMBUS=m
CONFIG_SENSORS_ADM1275=m
CONFIG_SENSORS_IBM_CFFPS=m
CONFIG_SENSORS_IR35221=m
# CONFIG_SENSORS_LM25066 is not set
# CONFIG_SENSORS_LTC2978 is not set
# CONFIG_SENSORS_LTC3815 is not set
CONFIG_SENSORS_MAX16064=m
# CONFIG_SENSORS_MAX20751 is not set
CONFIG_SENSORS_MAX31785=m
CONFIG_SENSORS_MAX34440=m
# CONFIG_SENSORS_MAX8688 is not set
# CONFIG_SENSORS_TPS40422 is not set
CONFIG_SENSORS_TPS53679=m
CONFIG_SENSORS_UCD9000=m
CONFIG_SENSORS_UCD9200=m
CONFIG_SENSORS_ZL6100=m
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
CONFIG_SENSORS_SHT3x=m
CONFIG_SENSORS_SHTC1=m
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
CONFIG_SENSORS_EMC2103=m
CONFIG_SENSORS_EMC6W201=m
CONFIG_SENSORS_SMSC47M1=m
# CONFIG_SENSORS_SMSC47M192 is not set
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_STTS751 is not set
CONFIG_SENSORS_SMM665=m
CONFIG_SENSORS_ADC128D818=m
CONFIG_SENSORS_ADS1015=m
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
CONFIG_SENSORS_INA3221=m
CONFIG_SENSORS_TC74=m
# CONFIG_SENSORS_THMC50 is not set
CONFIG_SENSORS_TMP102=m
# CONFIG_SENSORS_TMP103 is not set
CONFIG_SENSORS_TMP108=m
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
CONFIG_SENSORS_VT8231=m
CONFIG_SENSORS_W83773G=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
CONFIG_SENSORS_W83795_FANCTRL=y
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
CONFIG_SENSORS_WM831X=m
CONFIG_SENSORS_WM8350=m

#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_STATISTICS=y
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_WRITABLE_TRIPS=y
# CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE is not set
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE=y
# CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
CONFIG_THERMAL_GOV_USER_SPACE=y
CONFIG_THERMAL_GOV_POWER_ALLOCATOR=y
CONFIG_CLOCK_THERMAL=y
# CONFIG_DEVFREQ_THERMAL is not set
# CONFIG_THERMAL_EMULATION is not set
CONFIG_INTEL_POWERCLAMP=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# CONFIG_INTEL_PCH_THERMAL is not set
CONFIG_GENERIC_ADC_THERMAL=m
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_SYSFS=y

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_DA9055_WATCHDOG is not set
CONFIG_DA9063_WATCHDOG=y
CONFIG_MENF21BMC_WATCHDOG=m
CONFIG_MENZ069_WATCHDOG=y
# CONFIG_WDAT_WDT is not set
CONFIG_WM831X_WATCHDOG=y
CONFIG_WM8350_WATCHDOG=y
CONFIG_XILINX_WATCHDOG=y
# CONFIG_ZIIRAVE_WATCHDOG is not set
CONFIG_CADENCE_WATCHDOG=m
CONFIG_DW_WATCHDOG=y
CONFIG_TWL4030_WATCHDOG=y
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
CONFIG_ADVANTECH_WDT=y
# CONFIG_ALIM1535_WDT is not set
CONFIG_ALIM7101_WDT=y
CONFIG_EBC_C384_WDT=m
# CONFIG_F71808E_WDT is not set
CONFIG_SP5100_TCO=y
CONFIG_SBC_FITPC2_WATCHDOG=y
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=y
CONFIG_IBMASR=y
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=m
CONFIG_IE6XX_WDT=y
CONFIG_ITCO_WDT=m
# CONFIG_ITCO_VENDOR_SUPPORT is not set
CONFIG_IT8712F_WDT=m
# CONFIG_IT87_WDT is not set
CONFIG_HP_WATCHDOG=m
# CONFIG_KEMPLD_WDT is not set
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
CONFIG_NV_TCO=m
CONFIG_60XX_WDT=m
CONFIG_CPU5_WDT=m
CONFIG_SMSC_SCH311X_WDT=m
CONFIG_SMSC37B787_WDT=m
# CONFIG_VIA_WDT is not set
CONFIG_W83627HF_WDT=m
# CONFIG_W83877F_WDT is not set
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=m
CONFIG_SBC_EPX_C3_WATCHDOG=y
CONFIG_INTEL_MEI_WDT=m
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
CONFIG_MEN_A21_WDT=m
CONFIG_XEN_WDT=y

#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=y
CONFIG_WDTPCI=m

#
# Watchdog Pretimeout Governors
#
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP=y
# CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC is not set
CONFIG_WATCHDOG_PRETIMEOUT_GOV_NOOP=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_PANIC=m
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
CONFIG_BCMA=y
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_PCI=y
# CONFIG_BCMA_HOST_SOC is not set
CONFIG_BCMA_DRIVER_PCI=y
# CONFIG_BCMA_DRIVER_GMAC_CMN is not set
# CONFIG_BCMA_DRIVER_GPIO is not set
CONFIG_BCMA_DEBUG=y

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
CONFIG_MFD_AS3711=y
# CONFIG_PMIC_ADP5520 is not set
CONFIG_MFD_AAT2870_CORE=y
# CONFIG_MFD_BCM590XX is not set
CONFIG_MFD_BD9571MWV=y
CONFIG_MFD_AXP20X=y
CONFIG_MFD_AXP20X_I2C=y
CONFIG_MFD_CROS_EC=m
CONFIG_MFD_CROS_EC_CHARDEV=m
# CONFIG_MFD_MADERA is not set
CONFIG_PMIC_DA903X=y
# CONFIG_MFD_DA9052_I2C is not set
CONFIG_MFD_DA9055=y
# CONFIG_MFD_DA9062 is not set
CONFIG_MFD_DA9063=y
CONFIG_MFD_DA9150=m
CONFIG_MFD_MC13XXX=y
CONFIG_MFD_MC13XXX_I2C=y
# CONFIG_HTC_PASIC3 is not set
CONFIG_HTC_I2CPLD=y
CONFIG_MFD_INTEL_QUARK_I2C_GPIO=y
CONFIG_LPC_ICH=m
CONFIG_LPC_SCH=y
# CONFIG_INTEL_SOC_PMIC is not set
# CONFIG_INTEL_SOC_PMIC_CHTWC is not set
# CONFIG_INTEL_SOC_PMIC_CHTDC_TI is not set
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
# CONFIG_MFD_INTEL_LPSS_PCI is not set
CONFIG_MFD_JANZ_CMODIO=y
CONFIG_MFD_KEMPLD=m
CONFIG_MFD_88PM800=m
CONFIG_MFD_88PM805=m
# CONFIG_MFD_88PM860X is not set
CONFIG_MFD_MAX14577=m
# CONFIG_MFD_MAX77693 is not set
CONFIG_MFD_MAX77843=y
CONFIG_MFD_MAX8907=m
CONFIG_MFD_MAX8925=y
CONFIG_MFD_MAX8997=y
# CONFIG_MFD_MAX8998 is not set
CONFIG_MFD_MT6397=m
CONFIG_MFD_MENF21BMC=y
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
CONFIG_MFD_RDC321X=m
CONFIG_MFD_RT5033=m
# CONFIG_MFD_RC5T583 is not set
CONFIG_MFD_SEC_CORE=y
CONFIG_MFD_SI476X_CORE=m
# CONFIG_MFD_SM501 is not set
CONFIG_MFD_SKY81452=m
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
CONFIG_MFD_SYSCON=y
CONFIG_MFD_TI_AM335X_TSCADC=m
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
CONFIG_MFD_TI_LMU=m
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
CONFIG_MFD_TPS65086=y
CONFIG_MFD_TPS65090=y
# CONFIG_MFD_TPS68470 is not set
CONFIG_MFD_TI_LP873X=m
# CONFIG_MFD_TPS6586X is not set
CONFIG_MFD_TPS65910=y
CONFIG_MFD_TPS65912=m
CONFIG_MFD_TPS65912_I2C=m
CONFIG_MFD_TPS80031=y
CONFIG_TWL4030_CORE=y
CONFIG_MFD_TWL4030_AUDIO=y
CONFIG_TWL6040_CORE=y
CONFIG_MFD_WL1273_CORE=m
CONFIG_MFD_LM3533=m
CONFIG_MFD_VX855=y
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8400 is not set
CONFIG_MFD_WM831X=y
CONFIG_MFD_WM831X_I2C=y
CONFIG_MFD_WM8350=y
CONFIG_MFD_WM8350_I2C=y
CONFIG_MFD_WM8994=m
# CONFIG_RAVE_SP_CORE is not set
# CONFIG_REGULATOR is not set
CONFIG_CEC_CORE=y
CONFIG_CEC_NOTIFIER=y
CONFIG_RC_CORE=m
CONFIG_RC_MAP=m
# CONFIG_LIRC is not set
# CONFIG_RC_DECODERS is not set
# CONFIG_RC_DEVICES is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_AGP=y
# CONFIG_AGP_AMD64 is not set
CONFIG_AGP_INTEL=m
CONFIG_AGP_SIS=y
CONFIG_AGP_VIA=m
CONFIG_INTEL_GTT=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=y
CONFIG_DRM_MIPI_DSI=y
# CONFIG_DRM_DP_AUX_CHARDEV is not set
# CONFIG_DRM_DEBUG_MM is not set
CONFIG_DRM_DEBUG_SELFTEST=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_KMS_FB_HELPER=y
# CONFIG_DRM_FBDEV_EMULATION is not set
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_DP_CEC=y
CONFIG_DRM_TTM=y
CONFIG_DRM_GEM_CMA_HELPER=y
CONFIG_DRM_KMS_CMA_HELPER=y
CONFIG_DRM_VM=y
CONFIG_DRM_SCHED=m

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
CONFIG_DRM_I2C_SIL164=m
CONFIG_DRM_I2C_NXP_TDA998X=m
CONFIG_DRM_I2C_NXP_TDA9950=y
# CONFIG_DRM_RADEON is not set
CONFIG_DRM_AMDGPU=m
# CONFIG_DRM_AMDGPU_SI is not set
# CONFIG_DRM_AMDGPU_CIK is not set
CONFIG_DRM_AMDGPU_USERPTR=y
# CONFIG_DRM_AMDGPU_GART_DEBUGFS is not set

#
# ACP (Audio CoProcessor) Configuration
#
CONFIG_DRM_AMD_ACP=y

#
# Display Engine Configuration
#
# CONFIG_DRM_AMD_DC is not set

#
# AMD Library routines
#
CONFIG_CHASH=m
CONFIG_CHASH_STATS=y
# CONFIG_CHASH_SELFTEST is not set
CONFIG_DRM_NOUVEAU=m
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
# CONFIG_NOUVEAU_DEBUG_MMU is not set
CONFIG_DRM_NOUVEAU_BACKLIGHT=y
CONFIG_DRM_I915=m
# CONFIG_DRM_I915_ALPHA_SUPPORT is not set
# CONFIG_DRM_I915_CAPTURE_ERROR is not set
# CONFIG_DRM_I915_USERPTR is not set
# CONFIG_DRM_I915_GVT is not set

#
# drm/i915 Debugging
#
# CONFIG_DRM_I915_WERROR is not set
# CONFIG_DRM_I915_DEBUG is not set
CONFIG_DRM_I915_SW_FENCE_DEBUG_OBJECTS=y
CONFIG_DRM_I915_SW_FENCE_CHECK_DAG=y
CONFIG_DRM_I915_DEBUG_GUC=y
# CONFIG_DRM_I915_SELFTEST is not set
# CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS is not set
# CONFIG_DRM_I915_DEBUG_VBLANK_EVADE is not set
CONFIG_DRM_VGEM=y
# CONFIG_DRM_VKMS is not set
# CONFIG_DRM_VMWGFX is not set
CONFIG_DRM_GMA500=y
# CONFIG_DRM_GMA600 is not set
CONFIG_DRM_GMA3600=y
# CONFIG_DRM_UDL is not set
CONFIG_DRM_AST=m
# CONFIG_DRM_MGAG200 is not set
CONFIG_DRM_CIRRUS_QEMU=m
# CONFIG_DRM_QXL is not set
CONFIG_DRM_BOCHS=y
# CONFIG_DRM_VIRTIO_GPU is not set
CONFIG_DRM_PANEL=y

#
# Display Panels
#
CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=m
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
CONFIG_DRM_ANALOGIX_ANX78XX=m
CONFIG_HSA_AMD=m
# CONFIG_DRM_HISI_HIBMC is not set
CONFIG_DRM_TINYDRM=y
CONFIG_DRM_XEN=y
CONFIG_DRM_XEN_FRONTEND=m
CONFIG_DRM_LEGACY=y
CONFIG_DRM_TDFX=m
CONFIG_DRM_R128=y
# CONFIG_DRM_I810 is not set
CONFIG_DRM_MGA=m
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
CONFIG_DRM_LIB_RANDOM=y

#
# Frame buffer Devices
#
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB_DDC=y
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_HECUBA=y
CONFIG_FB_SVGALIB=y
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
CONFIG_FB_CIRRUS=m
# CONFIG_FB_PM2 is not set
CONFIG_FB_CYBER2000=y
# CONFIG_FB_CYBER2000_DDC is not set
CONFIG_FB_ARC=m
CONFIG_FB_ASILIANT=y
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
CONFIG_FB_UVESA=m
CONFIG_FB_VESA=y
CONFIG_FB_N411=y
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
CONFIG_FB_NVIDIA=m
CONFIG_FB_NVIDIA_I2C=y
# CONFIG_FB_NVIDIA_DEBUG is not set
CONFIG_FB_NVIDIA_BACKLIGHT=y
CONFIG_FB_RIVA=y
CONFIG_FB_RIVA_I2C=y
# CONFIG_FB_RIVA_DEBUG is not set
# CONFIG_FB_RIVA_BACKLIGHT is not set
CONFIG_FB_I740=y
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_INTEL is not set
CONFIG_FB_MATROX=y
# CONFIG_FB_MATROX_MILLENIUM is not set
# CONFIG_FB_MATROX_MYSTIQUE is not set
# CONFIG_FB_MATROX_G is not set
# CONFIG_FB_MATROX_I2C is not set
CONFIG_FB_RADEON=y
# CONFIG_FB_RADEON_I2C is not set
CONFIG_FB_RADEON_BACKLIGHT=y
# CONFIG_FB_RADEON_DEBUG is not set
CONFIG_FB_ATY128=m
CONFIG_FB_ATY128_BACKLIGHT=y
CONFIG_FB_ATY=y
CONFIG_FB_ATY_CT=y
# CONFIG_FB_ATY_GENERIC_LCD is not set
# CONFIG_FB_ATY_GX is not set
# CONFIG_FB_ATY_BACKLIGHT is not set
CONFIG_FB_S3=y
# CONFIG_FB_S3_DDC is not set
CONFIG_FB_SAVAGE=y
# CONFIG_FB_SAVAGE_I2C is not set
# CONFIG_FB_SAVAGE_ACCEL is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
CONFIG_FB_NEOMAGIC=m
CONFIG_FB_KYRO=m
# CONFIG_FB_3DFX is not set
CONFIG_FB_VOODOO1=y
CONFIG_FB_VT8623=y
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
CONFIG_FB_PM3=m
CONFIG_FB_CARMINE=m
CONFIG_FB_CARMINE_DRAM_EVAL=y
# CONFIG_CARMINE_DRAM_CUSTOM is not set
# CONFIG_FB_IBM_GXT4500 is not set
CONFIG_FB_VIRTUAL=y
CONFIG_XEN_FBDEV_FRONTEND=m
CONFIG_FB_METRONOME=m
CONFIG_FB_MB862XX=y
CONFIG_FB_MB862XX_PCI_GDC=y
# CONFIG_FB_MB862XX_I2C is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_SIMPLE is not set
CONFIG_FB_SM712=m
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_PLATFORM=m
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
# CONFIG_BACKLIGHT_LM3533 is not set
# CONFIG_BACKLIGHT_DA903X is not set
CONFIG_BACKLIGHT_MAX8925=m
# CONFIG_BACKLIGHT_APPLE is not set
CONFIG_BACKLIGHT_PM8941_WLED=m
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_WM831X is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
CONFIG_BACKLIGHT_ADP8870=m
CONFIG_BACKLIGHT_AAT2870=m
# CONFIG_BACKLIGHT_LM3639 is not set
CONFIG_BACKLIGHT_PANDORA=y
# CONFIG_BACKLIGHT_SKY81452 is not set
CONFIG_BACKLIGHT_AS3711=m
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
CONFIG_BACKLIGHT_BD6107=y
CONFIG_BACKLIGHT_ARCXCNN=y
CONFIG_VGASTATE=y
CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=y
# CONFIG_SND is not set

#
# HID support
#
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
# CONFIG_HIDRAW is not set
CONFIG_UHID=y
# CONFIG_HID_GENERIC is not set

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_ASUS is not set
CONFIG_HID_AUREAL=m
# CONFIG_HID_BELKIN is not set
CONFIG_HID_CHERRY=y
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_CMEDIA is not set
CONFIG_HID_CYPRESS=m
# CONFIG_HID_DRAGONRISE is not set
CONFIG_HID_EMS_FF=y
CONFIG_HID_ELECOM=y
CONFIG_HID_EZKEY=y
CONFIG_HID_GEMBIRD=y
CONFIG_HID_GFRM=y
CONFIG_HID_KEYTOUCH=y
CONFIG_HID_KYE=y
CONFIG_HID_WALTOP=m
CONFIG_HID_GYRATION=y
# CONFIG_HID_ICADE is not set
CONFIG_HID_ITE=y
CONFIG_HID_JABRA=m
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=m
CONFIG_HID_LCPOWER=m
CONFIG_HID_LED=y
CONFIG_HID_LENOVO=m
# CONFIG_HID_LOGITECH is not set
CONFIG_HID_MAGICMOUSE=m
CONFIG_HID_MAYFLASH=m
CONFIG_HID_REDRAGON=y
CONFIG_HID_MICROSOFT=m
# CONFIG_HID_MONTEREY is not set
CONFIG_HID_MULTITOUCH=y
# CONFIG_HID_NTI is not set
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
# CONFIG_HID_PICOLCD_BACKLIGHT is not set
# CONFIG_HID_PICOLCD_LCD is not set
# CONFIG_HID_PICOLCD_LEDS is not set
CONFIG_HID_PICOLCD_CIR=y
# CONFIG_HID_PLANTRONICS is not set
CONFIG_HID_PRIMAX=y
CONFIG_HID_SAITEK=y
CONFIG_HID_SAMSUNG=m
# CONFIG_HID_SPEEDLINK is not set
CONFIG_HID_STEAM=y
CONFIG_HID_STEELSERIES=y
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
CONFIG_HID_GREENASIA=y
CONFIG_GREENASIA_FF=y
CONFIG_HID_SMARTJOYPLUS=y
CONFIG_SMARTJOYPLUS_FF=y
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=m
CONFIG_HID_THINGM=y
CONFIG_HID_THRUSTMASTER=y
CONFIG_THRUSTMASTER_FF=y
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_WIIMOTE is not set
CONFIG_HID_XINMO=m
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
CONFIG_HID_SENSOR_HUB=y
CONFIG_HID_SENSOR_CUSTOM_SENSOR=y
# CONFIG_HID_ALPS is not set

#
# I2C HID support
#
CONFIG_I2C_HID=y

#
# Intel ISH HID support
#
CONFIG_INTEL_ISH_HID=y
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
# CONFIG_USB is not set
CONFIG_USB_PCI=y

#
# USB port drivers
#

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_GADGET is not set
# CONFIG_TYPEC is not set
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_UWB is not set
CONFIG_MMC=y
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_SDHCI=y
# CONFIG_MMC_SDHCI_PCI is not set
# CONFIG_MMC_SDHCI_ACPI is not set
# CONFIG_MMC_SDHCI_PLTFM is not set
CONFIG_MMC_WBSD=m
# CONFIG_MMC_TIFM_SD is not set
CONFIG_MMC_CB710=m
# CONFIG_MMC_VIA_SDMMC is not set
CONFIG_MMC_USDHI6ROL0=m
CONFIG_MMC_REALTEK_PCI=m
# CONFIG_MMC_CQHCI is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_CLASS_FLASH=y
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
CONFIG_LEDS_AS3645A=m
CONFIG_LEDS_LM3530=y
# CONFIG_LEDS_LM3533 is not set
# CONFIG_LEDS_LM3642 is not set
CONFIG_LEDS_LM3601X=y
# CONFIG_LEDS_MT6323 is not set
# CONFIG_LEDS_PCA9532 is not set
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_LP3944=y
CONFIG_LEDS_LP3952=y
CONFIG_LEDS_LP55XX_COMMON=m
CONFIG_LEDS_LP5521=m
CONFIG_LEDS_LP5523=m
CONFIG_LEDS_LP5562=m
# CONFIG_LEDS_LP8501 is not set
CONFIG_LEDS_PCA955X=y
CONFIG_LEDS_PCA955X_GPIO=y
CONFIG_LEDS_PCA963X=m
# CONFIG_LEDS_WM831X_STATUS is not set
# CONFIG_LEDS_WM8350 is not set
CONFIG_LEDS_DA903X=m
# CONFIG_LEDS_BD2802 is not set
CONFIG_LEDS_LT3593=y
CONFIG_LEDS_MC13783=y
CONFIG_LEDS_TCA6507=m
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_MAX8997 is not set
CONFIG_LEDS_LM355x=y
# CONFIG_LEDS_MENF21BMC is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=y
# CONFIG_LEDS_MLXREG is not set
CONFIG_LEDS_USER=y
# CONFIG_LEDS_NIC78BX is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_ONESHOT=y
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
CONFIG_LEDS_TRIGGER_BACKLIGHT=y
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
CONFIG_LEDS_TRIGGER_GPIO=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
CONFIG_LEDS_TRIGGER_CAMERA=y
CONFIG_LEDS_TRIGGER_PANIC=y
# CONFIG_LEDS_TRIGGER_NETDEV is not set
CONFIG_ACCESSIBILITY=y
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
# CONFIG_RTC_SYSTOHC is not set
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
CONFIG_RTC_DRV_TEST=m

#
# I2C RTC drivers
#
CONFIG_RTC_DRV_88PM80X=m
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABX80X is not set
CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_DS1307_CENTURY=y
CONFIG_RTC_DRV_DS1374=y
CONFIG_RTC_DRV_DS1374_WDT=y
# CONFIG_RTC_DRV_DS1672 is not set
CONFIG_RTC_DRV_MAX6900=y
CONFIG_RTC_DRV_MAX8907=m
CONFIG_RTC_DRV_MAX8925=y
# CONFIG_RTC_DRV_MAX8997 is not set
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=y
CONFIG_RTC_DRV_ISL12022=m
CONFIG_RTC_DRV_X1205=y
CONFIG_RTC_DRV_PCF8523=m
# CONFIG_RTC_DRV_PCF85063 is not set
CONFIG_RTC_DRV_PCF85363=m
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
CONFIG_RTC_DRV_M41T80=y
CONFIG_RTC_DRV_M41T80_WDT=y
CONFIG_RTC_DRV_BQ32K=m
CONFIG_RTC_DRV_TPS65910=m
# CONFIG_RTC_DRV_TPS80031 is not set
CONFIG_RTC_DRV_S35390A=y
CONFIG_RTC_DRV_FM3130=y
CONFIG_RTC_DRV_RX8010=m
CONFIG_RTC_DRV_RX8581=y
# CONFIG_RTC_DRV_RX8025 is not set
CONFIG_RTC_DRV_EM3027=y
CONFIG_RTC_DRV_RV8803=m
# CONFIG_RTC_DRV_S5M is not set

#
# SPI RTC drivers
#
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
CONFIG_RTC_DRV_PCF2127=y
# CONFIG_RTC_DRV_RV3029C2 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=m
# CONFIG_RTC_DRV_DS1286 is not set
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=y
CONFIG_RTC_DRV_DS1685_FAMILY=y
# CONFIG_RTC_DRV_DS1685 is not set
CONFIG_RTC_DRV_DS1689=y
# CONFIG_RTC_DRV_DS17285 is not set
# CONFIG_RTC_DRV_DS17485 is not set
# CONFIG_RTC_DRV_DS17885 is not set
# CONFIG_RTC_DS1685_PROC_REGS is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
CONFIG_RTC_DRV_DA9055=m
CONFIG_RTC_DRV_DA9063=m
# CONFIG_RTC_DRV_STK17TA8 is not set
CONFIG_RTC_DRV_M48T86=m
CONFIG_RTC_DRV_M48T35=y
CONFIG_RTC_DRV_M48T59=m
CONFIG_RTC_DRV_MSM6242=m
# CONFIG_RTC_DRV_BQ4802 is not set
CONFIG_RTC_DRV_RP5C01=y
CONFIG_RTC_DRV_V3020=y
CONFIG_RTC_DRV_WM831X=y
# CONFIG_RTC_DRV_WM8350 is not set
CONFIG_RTC_DRV_CROS_EC=m

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set
# CONFIG_RTC_DRV_MC13XXX is not set
# CONFIG_RTC_DRV_MT6397 is not set

#
# HID Sensor RTC drivers
#
CONFIG_DMADEVICES=y
CONFIG_DMADEVICES_DEBUG=y
# CONFIG_DMADEVICES_VDEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
CONFIG_ALTERA_MSGDMA=y
CONFIG_INTEL_IDMA64=m
CONFIG_INTEL_IOATDMA=m
CONFIG_INTEL_MIC_X100_DMA=m
CONFIG_QCOM_HIDMA_MGMT=m
CONFIG_QCOM_HIDMA=y
CONFIG_DW_DMAC_CORE=y
# CONFIG_DW_DMAC is not set
CONFIG_DW_DMAC_PCI=m
CONFIG_HSU_DMA=y

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
CONFIG_DMATEST=y
CONFIG_DMA_ENGINE_RAID=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
CONFIG_DCA=m
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
CONFIG_UIO_DMEM_GENIRQ=m
# CONFIG_UIO_AEC is not set
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
CONFIG_UIO_PRUSS=m
CONFIG_UIO_MF624=m
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=m
# CONFIG_VIRTIO_MENU is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set

#
# Xen driver support
#
CONFIG_XEN_BALLOON=y
# CONFIG_XEN_SCRUB_PAGES_DEFAULT is not set
CONFIG_XEN_DEV_EVTCHN=m
CONFIG_XENFS=m
# CONFIG_XEN_COMPAT_XENFS is not set
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=m
# CONFIG_XEN_GNTDEV is not set
CONFIG_XEN_GRANT_DEV_ALLOC=m
# CONFIG_XEN_GRANT_DMA_ALLOC is not set
CONFIG_SWIOTLB_XEN=y
CONFIG_XEN_TMEM=m
# CONFIG_XEN_PVCALLS_FRONTEND is not set
CONFIG_XEN_PRIVCMD=m
CONFIG_XEN_ACPI=y
CONFIG_STAGING=y
# CONFIG_COMEDI is not set
# CONFIG_RTLLIB is not set

#
# IIO staging drivers
#

#
# Accelerometers
#

#
# Analog to digital converters
#
CONFIG_AD7606=y
# CONFIG_AD7606_IFACE_PARALLEL is not set

#
# Analog digital bi-direction converters
#
CONFIG_ADT7316=m
CONFIG_ADT7316_I2C=m

#
# Capacitance to digital converters
#
# CONFIG_AD7150 is not set
# CONFIG_AD7152 is not set
CONFIG_AD7746=m

#
# Direct Digital Synthesis
#

#
# Network Analyzer, Impedance Converters
#
# CONFIG_AD5933 is not set

#
# Active energy metering IC
#
CONFIG_ADE7854=m
CONFIG_ADE7854_I2C=m

#
# Resolver to digital converters
#
CONFIG_FB_SM750=y
CONFIG_FB_XGI=y

#
# Speakup console speech
#
# CONFIG_STAGING_MEDIA is not set

#
# Android
#
CONFIG_ASHMEM=y
CONFIG_ANDROID_VSOC=m
CONFIG_ION=y
CONFIG_ION_SYSTEM_HEAP=y
CONFIG_ION_CARVEOUT_HEAP=y
# CONFIG_ION_CHUNK_HEAP is not set
CONFIG_DGNC=y
CONFIG_GS_FPGABOOT=m
CONFIG_UNISYSSPAR=y
# CONFIG_MOST is not set
# CONFIG_KS7010 is not set
CONFIG_GREYBUS=m
# CONFIG_GREYBUS_AUDIO is not set
# CONFIG_GREYBUS_BOOTROM is not set
CONFIG_GREYBUS_HID=m
CONFIG_GREYBUS_LIGHT=m
# CONFIG_GREYBUS_LOG is not set
# CONFIG_GREYBUS_LOOPBACK is not set
CONFIG_GREYBUS_POWER=m
# CONFIG_GREYBUS_RAW is not set
CONFIG_GREYBUS_VIBRATOR=m
CONFIG_GREYBUS_BRIDGED_PHY=m
CONFIG_GREYBUS_GPIO=m
# CONFIG_GREYBUS_I2C is not set
CONFIG_GREYBUS_SDIO=m
CONFIG_GREYBUS_UART=m
CONFIG_DRM_VBOXVIDEO=m
CONFIG_MTK_MMC=m
# CONFIG_MTK_AEE_KDUMP is not set
# CONFIG_MTK_MMC_CD_POLL is not set

#
# Gasket devices
#
# CONFIG_STAGING_GASKET_FRAMEWORK is not set
CONFIG_XIL_AXIS_FIFO=m
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACER_WMI is not set
# CONFIG_ACER_WIRELESS is not set
# CONFIG_ACERHDF is not set
# CONFIG_ALIENWARE_WMI is not set
# CONFIG_ASUS_LAPTOP is not set
CONFIG_DELL_SMBIOS=m
CONFIG_DELL_SMBIOS_WMI=y
CONFIG_DELL_SMBIOS_SMM=y
CONFIG_DELL_WMI_DESCRIPTOR=m
# CONFIG_DELL_WMI_AIO is not set
# CONFIG_DELL_WMI_LED is not set
# CONFIG_DELL_SMO8800 is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_GPD_POCKET_FAN is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
# CONFIG_HP_WMI is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
CONFIG_SENSORS_HDAPS=y
# CONFIG_INTEL_MENLOW is not set
# CONFIG_ASUS_WIRELESS is not set
CONFIG_ACPI_WMI=m
CONFIG_WMI_BMOF=m
# CONFIG_INTEL_WMI_THUNDERBOLT is not set
# CONFIG_MSI_WMI is not set
# CONFIG_PEAQ_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_ACPI_TOSHIBA is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_INTEL_INT0002_VGPIO is not set
# CONFIG_INTEL_HID_EVENT is not set
# CONFIG_INTEL_VBTN is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_INTEL_PMC_CORE is not set
# CONFIG_IBM_RTL is not set
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_MXM_WMI=m
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_PVPANIC is not set
# CONFIG_INTEL_PMC_IPC is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
# CONFIG_SURFACE_3_BUTTON is not set
CONFIG_INTEL_PUNIT_IPC=y
# CONFIG_MLX_PLATFORM is not set
# CONFIG_I2C_MULTI_INSTANTIATE is not set
CONFIG_PMC_ATOM=y
CONFIG_CHROME_PLATFORMS=y
# CONFIG_CHROMEOS_PSTORE is not set
# CONFIG_CHROMEOS_TBMC is not set
CONFIG_CROS_EC_CTL=m
# CONFIG_CROS_EC_I2C is not set
# CONFIG_CROS_EC_LPC is not set
CONFIG_CROS_EC_PROTO=y
# CONFIG_CROS_KBD_LED_BACKLIGHT is not set
CONFIG_MELLANOX_PLATFORM=y
CONFIG_MLXREG_HOTPLUG=m
# CONFIG_MLXREG_IO is not set
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Common Clock Framework
#
# CONFIG_COMMON_CLK_WM831X is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
CONFIG_COMMON_CLK_SI5351=y
CONFIG_COMMON_CLK_SI544=m
CONFIG_COMMON_CLK_CDCE706=m
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_S2MPS11 is not set
CONFIG_CLK_TWL6040=y
CONFIG_HWSPINLOCK=y

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_CLKBLD_I8253=y
CONFIG_MAILBOX=y
# CONFIG_PCC is not set
CONFIG_ALTERA_MBOX=y
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
CONFIG_REMOTEPROC=m

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#

#
# Broadcom SoC drivers
#

#
# NXP/Freescale QorIQ SoC drivers
#

#
# i.MX SoC drivers
#

#
# Qualcomm SoC drivers
#
# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
CONFIG_XILINX_VCU=y
CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=m
# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
CONFIG_DEVFREQ_GOV_POWERSAVE=y
CONFIG_DEVFREQ_GOV_USERSPACE=m
CONFIG_DEVFREQ_GOV_PASSIVE=m

#
# DEVFREQ Drivers
#
CONFIG_PM_DEVFREQ_EVENT=y
CONFIG_EXTCON=y

#
# Extcon Device Drivers
#
# CONFIG_EXTCON_ADC_JACK is not set
# CONFIG_EXTCON_AXP288 is not set
CONFIG_EXTCON_GPIO=y
# CONFIG_EXTCON_INTEL_INT3496 is not set
# CONFIG_EXTCON_MAX14577 is not set
CONFIG_EXTCON_MAX3355=y
CONFIG_EXTCON_MAX77843=y
CONFIG_EXTCON_MAX8997=m
# CONFIG_EXTCON_RT8973A is not set
CONFIG_EXTCON_SM5502=m
CONFIG_EXTCON_USB_GPIO=m
CONFIG_EXTCON_USBC_CROS_EC=m
CONFIG_MEMORY=y
CONFIG_IIO=y
CONFIG_IIO_BUFFER=y
CONFIG_IIO_BUFFER_CB=y
# CONFIG_IIO_BUFFER_HW_CONSUMER is not set
CONFIG_IIO_KFIFO_BUF=y
CONFIG_IIO_TRIGGERED_BUFFER=y
CONFIG_IIO_CONFIGFS=m
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
CONFIG_IIO_SW_DEVICE=m
CONFIG_IIO_SW_TRIGGER=m

#
# Accelerometers
#
CONFIG_ADXL345=m
CONFIG_ADXL345_I2C=m
CONFIG_BMA180=y
CONFIG_BMC150_ACCEL=y
CONFIG_BMC150_ACCEL_I2C=y
CONFIG_DA280=m
CONFIG_DA311=m
CONFIG_DMARD09=y
CONFIG_DMARD10=m
# CONFIG_HID_SENSOR_ACCEL_3D is not set
CONFIG_IIO_CROS_EC_ACCEL_LEGACY=m
# CONFIG_IIO_ST_ACCEL_3AXIS is not set
CONFIG_KXSD9=m
CONFIG_KXSD9_I2C=m
# CONFIG_KXCJK1013 is not set
CONFIG_MC3230=m
CONFIG_MMA7455=y
CONFIG_MMA7455_I2C=y
# CONFIG_MMA7660 is not set
CONFIG_MMA8452=y
CONFIG_MMA9551_CORE=y
CONFIG_MMA9551=y
# CONFIG_MMA9553 is not set
CONFIG_MXC4005=m
# CONFIG_MXC6255 is not set
CONFIG_STK8312=m
# CONFIG_STK8BA50 is not set

#
# Analog to digital converters
#
# CONFIG_AD7291 is not set
# CONFIG_AD799X is not set
CONFIG_AXP20X_ADC=m
CONFIG_AXP288_ADC=m
CONFIG_DA9150_GPADC=m
CONFIG_HX711=y
CONFIG_INA2XX_ADC=y
CONFIG_LTC2471=m
# CONFIG_LTC2485 is not set
CONFIG_LTC2497=m
CONFIG_MAX1363=m
CONFIG_MAX9611=y
CONFIG_MCP3422=y
CONFIG_MEN_Z188_ADC=y
CONFIG_NAU7802=m
CONFIG_QCOM_SPMI_IADC=m
# CONFIG_QCOM_SPMI_VADC is not set
CONFIG_STX104=y
CONFIG_TI_ADC081C=m
CONFIG_TI_ADS1015=m
CONFIG_TI_AM335X_ADC=m
CONFIG_TWL4030_MADC=m
# CONFIG_TWL6030_GPADC is not set

#
# Analog Front Ends
#

#
# Amplifiers
#

#
# Chemical Sensors
#
# CONFIG_ATLAS_PH_SENSOR is not set
CONFIG_BME680=m
CONFIG_BME680_I2C=m
# CONFIG_CCS811 is not set
CONFIG_IAQCORE=m
# CONFIG_VZ89X is not set
CONFIG_IIO_CROS_EC_SENSORS_CORE=m
CONFIG_IIO_CROS_EC_SENSORS=m

#
# Hid Sensor IIO Common
#
CONFIG_HID_SENSOR_IIO_COMMON=y
CONFIG_HID_SENSOR_IIO_TRIGGER=y
CONFIG_IIO_MS_SENSORS_I2C=y

#
# SSP Sensor Common
#
CONFIG_IIO_ST_SENSORS_I2C=m
CONFIG_IIO_ST_SENSORS_CORE=m

#
# Counters
#
CONFIG_104_QUAD_8=y

#
# Digital to analog converters
#
CONFIG_AD5064=m
# CONFIG_AD5380 is not set
CONFIG_AD5446=y
CONFIG_AD5592R_BASE=m
CONFIG_AD5593R=m
CONFIG_AD5686=y
CONFIG_AD5696_I2C=y
# CONFIG_CIO_DAC is not set
# CONFIG_DS4424 is not set
# CONFIG_M62332 is not set
# CONFIG_MAX517 is not set
CONFIG_MCP4725=y
CONFIG_TI_DAC5571=y

#
# IIO dummy driver
#
CONFIG_IIO_SIMPLE_DUMMY=m
# CONFIG_IIO_SIMPLE_DUMMY_EVENTS is not set
CONFIG_IIO_SIMPLE_DUMMY_BUFFER=y

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#

#
# Phase-Locked Loop (PLL) frequency synthesizers
#

#
# Digital gyroscope sensors
#
CONFIG_BMG160=m
CONFIG_BMG160_I2C=m
# CONFIG_HID_SENSOR_GYRO_3D is not set
CONFIG_MPU3050=m
CONFIG_MPU3050_I2C=m
CONFIG_IIO_ST_GYRO_3AXIS=m
CONFIG_IIO_ST_GYRO_I2C_3AXIS=m
# CONFIG_ITG3200 is not set

#
# Health Sensors
#

#
# Heart Rate Monitors
#
CONFIG_AFE4404=y
# CONFIG_MAX30100 is not set
# CONFIG_MAX30102 is not set

#
# Humidity sensors
#
# CONFIG_AM2315 is not set
CONFIG_DHT11=y
CONFIG_HDC100X=y
CONFIG_HID_SENSOR_HUMIDITY=y
# CONFIG_HTS221 is not set
CONFIG_HTU21=y
CONFIG_SI7005=y
CONFIG_SI7020=m

#
# Inertial measurement units
#
CONFIG_BMI160=m
CONFIG_BMI160_I2C=m
CONFIG_KMX61=y
CONFIG_INV_MPU6050_IIO=y
CONFIG_INV_MPU6050_I2C=y
CONFIG_IIO_ST_LSM6DSX=y
CONFIG_IIO_ST_LSM6DSX_I2C=y

#
# Light sensors
#
# CONFIG_ACPI_ALS is not set
CONFIG_ADJD_S311=m
CONFIG_AL3320A=m
# CONFIG_APDS9300 is not set
CONFIG_APDS9960=m
# CONFIG_BH1750 is not set
CONFIG_BH1780=y
# CONFIG_CM32181 is not set
CONFIG_CM3232=m
CONFIG_CM3323=y
CONFIG_CM36651=m
# CONFIG_IIO_CROS_EC_LIGHT_PROX is not set
CONFIG_GP2AP020A00F=y
CONFIG_SENSORS_ISL29018=y
CONFIG_SENSORS_ISL29028=m
# CONFIG_ISL29125 is not set
CONFIG_HID_SENSOR_ALS=y
# CONFIG_HID_SENSOR_PROX is not set
# CONFIG_JSA1212 is not set
CONFIG_RPR0521=m
# CONFIG_SENSORS_LM3533 is not set
# CONFIG_LTR501 is not set
CONFIG_LV0104CS=m
CONFIG_MAX44000=m
# CONFIG_OPT3001 is not set
CONFIG_PA12203001=y
# CONFIG_SI1133 is not set
CONFIG_SI1145=y
# CONFIG_STK3310 is not set
# CONFIG_ST_UVIS25 is not set
# CONFIG_TCS3414 is not set
# CONFIG_TCS3472 is not set
# CONFIG_SENSORS_TSL2563 is not set
CONFIG_TSL2583=m
# CONFIG_TSL2772 is not set
# CONFIG_TSL4531 is not set
CONFIG_US5182D=m
CONFIG_VCNL4000=m
CONFIG_VEML6070=y
CONFIG_VL6180=y
CONFIG_ZOPT2201=m

#
# Magnetometer sensors
#
CONFIG_AK8975=y
CONFIG_AK09911=y
# CONFIG_BMC150_MAGN_I2C is not set
CONFIG_MAG3110=y
CONFIG_HID_SENSOR_MAGNETOMETER_3D=m
CONFIG_MMC35240=y
# CONFIG_IIO_ST_MAGN_3AXIS is not set
# CONFIG_SENSORS_HMC5843_I2C is not set

#
# Multiplexers
#

#
# Inclinometer sensors
#
CONFIG_HID_SENSOR_INCLINOMETER_3D=y
# CONFIG_HID_SENSOR_DEVICE_ROTATION is not set

#
# Triggers - standalone
#
# CONFIG_IIO_HRTIMER_TRIGGER is not set
CONFIG_IIO_INTERRUPT_TRIGGER=y
# CONFIG_IIO_TIGHTLOOP_TRIGGER is not set
CONFIG_IIO_SYSFS_TRIGGER=m

#
# Digital potentiometers
#
CONFIG_AD5272=m
CONFIG_DS1803=y
CONFIG_MCP4018=y
CONFIG_MCP4531=m
CONFIG_TPL0102=m

#
# Digital potentiostats
#
CONFIG_LMP91000=y

#
# Pressure sensors
#
CONFIG_ABP060MG=m
CONFIG_BMP280=y
CONFIG_BMP280_I2C=y
CONFIG_IIO_CROS_EC_BARO=m
CONFIG_HID_SENSOR_PRESS=m
CONFIG_HP03=y
CONFIG_MPL115=y
CONFIG_MPL115_I2C=y
CONFIG_MPL3115=y
# CONFIG_MS5611 is not set
# CONFIG_MS5637 is not set
# CONFIG_IIO_ST_PRESS is not set
CONFIG_T5403=m
# CONFIG_HP206C is not set
CONFIG_ZPA2326=m
CONFIG_ZPA2326_I2C=m

#
# Lightning sensors
#

#
# Proximity and distance sensors
#
CONFIG_ISL29501=y
# CONFIG_LIDAR_LITE_V2 is not set
CONFIG_RFD77402=y
# CONFIG_SRF04 is not set
# CONFIG_SX9500 is not set
CONFIG_SRF08=y

#
# Resolver to digital converters
#

#
# Temperature sensors
#
CONFIG_HID_SENSOR_TEMP=y
CONFIG_MLX90614=m
CONFIG_MLX90632=y
CONFIG_TMP006=m
# CONFIG_TMP007 is not set
CONFIG_TSYS01=y
# CONFIG_TSYS02D is not set
# CONFIG_NTB is not set
CONFIG_VME_BUS=y

#
# VME Bridge Drivers
#
CONFIG_VME_CA91CX42=y
CONFIG_VME_TSI148=y
# CONFIG_VME_FAKE is not set

#
# VME Board Drivers
#
# CONFIG_VMIVME_7805 is not set

#
# VME Device Drivers
#
CONFIG_VME_USER=y
# CONFIG_PWM is not set

#
# IRQ chip support
#
CONFIG_ARM_GIC_MAX_NR=1
CONFIG_IPACK_BUS=m
CONFIG_BOARD_TPCI200=m
CONFIG_SERIAL_IPOCTAL=m
CONFIG_RESET_CONTROLLER=y
# CONFIG_RESET_TI_SYSCON is not set
CONFIG_FMC=y
# CONFIG_FMC_FAKEDEV is not set
CONFIG_FMC_TRIVIAL=y
CONFIG_FMC_WRITE_EEPROM=y
# CONFIG_FMC_CHARDEV is not set

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
CONFIG_BCM_KONA_USB2_PHY=y
# CONFIG_PHY_PXA_28NM_HSIC is not set
CONFIG_PHY_PXA_28NM_USB2=m
# CONFIG_PHY_CPCAP_USB is not set
CONFIG_POWERCAP=y
CONFIG_INTEL_RAPL=m
# CONFIG_IDLE_INJECT is not set
CONFIG_MCB=y
# CONFIG_MCB_PCI is not set
CONFIG_MCB_LPC=y

#
# Performance monitor support
#
# CONFIG_RAS is not set
CONFIG_THUNDERBOLT=y

#
# Android
#
CONFIG_ANDROID=y
# CONFIG_ANDROID_BINDER_IPC is not set
CONFIG_DAX=y
# CONFIG_DEV_DAX is not set
CONFIG_NVMEM=y

#
# HW tracing support
#
CONFIG_STM=y
CONFIG_STM_DUMMY=m
CONFIG_STM_SOURCE_CONSOLE=m
# CONFIG_STM_SOURCE_HEARTBEAT is not set
CONFIG_STM_SOURCE_FTRACE=m
CONFIG_INTEL_TH=m
CONFIG_INTEL_TH_PCI=m
# CONFIG_INTEL_TH_ACPI is not set
# CONFIG_INTEL_TH_GTH is not set
CONFIG_INTEL_TH_STH=m
# CONFIG_INTEL_TH_MSU is not set
# CONFIG_INTEL_TH_PTI is not set
CONFIG_INTEL_TH_DEBUG=y
CONFIG_FPGA=y
# CONFIG_ALTERA_PR_IP_CORE is not set
# CONFIG_FPGA_MGR_ALTERA_CVP is not set
CONFIG_FPGA_BRIDGE=y
CONFIG_XILINX_PR_DECOUPLER=y
CONFIG_FPGA_REGION=y
CONFIG_FPGA_DFL=y
CONFIG_FPGA_DFL_FME=m
CONFIG_FPGA_DFL_FME_MGR=m
CONFIG_FPGA_DFL_FME_BRIDGE=m
# CONFIG_FPGA_DFL_FME_REGION is not set
CONFIG_FPGA_DFL_AFU=y
# CONFIG_FPGA_DFL_PCI is not set
CONFIG_PM_OPP=y
# CONFIG_UNISYS_VISORBUS is not set
CONFIG_SIOX=y
CONFIG_SIOX_BUS_GPIO=y
CONFIG_SLIMBUS=y
# CONFIG_SLIM_QCOM_CTRL is not set

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
CONFIG_MANDATORY_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=m
CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
# CONFIG_PRINT_QUOTA_WARNING is not set
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_QUOTACTL_COMPAT=y
CONFIG_AUTOFS4_FS=m
CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=y
CONFIG_OVERLAY_FS=m
CONFIG_OVERLAY_FS_REDIRECT_DIR=y
CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW=y
CONFIG_OVERLAY_FS_INDEX=y
CONFIG_OVERLAY_FS_NFS_EXPORT=y
CONFIG_OVERLAY_FS_XINO_AUTO=y
# CONFIG_OVERLAY_FS_METACOPY is not set

#
# Caches
#
CONFIG_FSCACHE=y
# CONFIG_FSCACHE_STATS is not set
# CONFIG_FSCACHE_HISTOGRAM is not set
CONFIG_FSCACHE_DEBUG=y
# CONFIG_FSCACHE_OBJECT_LIST is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_MEMFD_CREATE=y
CONFIG_CONFIGFS_FS=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
# CONFIG_NFS_V4_1 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFS_FSCACHE is not set
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
# CONFIG_NFSD is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
# CONFIG_CIFS_WEAK_PW_HASH is not set
# CONFIG_CIFS_UPCALL is not set
# CONFIG_CIFS_XATTR is not set
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
# CONFIG_CIFS_DFS_UPCALL is not set
# CONFIG_CIFS_FSCACHE is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
# CONFIG_NLS_CODEPAGE_865 is not set
CONFIG_NLS_CODEPAGE_866=m
# CONFIG_NLS_CODEPAGE_869 is not set
CONFIG_NLS_CODEPAGE_936=m
# CONFIG_NLS_CODEPAGE_950 is not set
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
CONFIG_NLS_ISO8859_5=m
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
CONFIG_NLS_KOI8_R=m
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
CONFIG_NLS_MAC_CENTEURO=m
# CONFIG_NLS_MAC_CROATIAN is not set
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=m
CONFIG_NLS_MAC_ICELAND=m
# CONFIG_NLS_MAC_INUIT is not set
CONFIG_NLS_MAC_ROMANIAN=m
# CONFIG_NLS_MAC_TURKISH is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_DLM is not set

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_COMPAT=y
CONFIG_PERSISTENT_KEYRINGS=y
# CONFIG_BIG_KEYS is not set
CONFIG_ENCRYPTED_KEYS=y
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_SECURITY_DMESG_RESTRICT=y
# CONFIG_SECURITY is not set
CONFIG_SECURITYFS=y
CONFIG_PAGE_TABLE_ISOLATION=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_FORTIFY_SOURCE is not set
CONFIG_STATIC_USERMODEHELPER=y
CONFIG_STATIC_USERMODEHELPER_PATH="/sbin/usermode-helper"
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=m
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=y
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_MCRYPTD=y
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_SIMD=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_AEGIS128L=m
CONFIG_CRYPTO_AEGIS256=y
# CONFIG_CRYPTO_AEGIS128_AESNI_SSE2 is not set
CONFIG_CRYPTO_AEGIS128L_AESNI_SSE2=m
CONFIG_CRYPTO_AEGIS256_AESNI_SSE2=y
CONFIG_CRYPTO_MORUS640=m
# CONFIG_CRYPTO_MORUS640_SSE2 is not set
CONFIG_CRYPTO_MORUS1280=m
CONFIG_CRYPTO_MORUS1280_GLUE=m
CONFIG_CRYPTO_MORUS1280_SSE2=m
CONFIG_CRYPTO_MORUS1280_AVX2=m
CONFIG_CRYPTO_SEQIV=m
# CONFIG_CRYPTO_ECHAINIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_LRW is not set
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_XTS=y
CONFIG_CRYPTO_KEYWRAP=y

#
# Hash modes
#
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=y
CONFIG_CRYPTO_VMAC=y

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
# CONFIG_CRYPTO_CRC32C_INTEL is not set
CONFIG_CRYPTO_CRC32=m
# CONFIG_CRYPTO_CRC32_PCLMUL is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=y
# CONFIG_CRYPTO_POLY1305_X86_64 is not set
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=y
CONFIG_CRYPTO_SHA1=m
# CONFIG_CRYPTO_SHA1_SSSE3 is not set
CONFIG_CRYPTO_SHA256_SSSE3=m
CONFIG_CRYPTO_SHA512_SSSE3=y
# CONFIG_CRYPTO_SHA1_MB is not set
# CONFIG_CRYPTO_SHA256_MB is not set
CONFIG_CRYPTO_SHA512_MB=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=y
CONFIG_CRYPTO_SM3=y
CONFIG_CRYPTO_TGR192=y
CONFIG_CRYPTO_WP512=y
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=y
CONFIG_CRYPTO_AES_X86_64=y
CONFIG_CRYPTO_AES_NI_INTEL=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=y
CONFIG_CRYPTO_BLOWFISH_X86_64=y
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAMELLIA_X86_64=y
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=y
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64=m
CONFIG_CRYPTO_CAST_COMMON=y
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_CAST6_AVX_X86_64=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_DES3_EDE_X86_64=m
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_KHAZAD=y
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_CHACHA20=m
CONFIG_CRYPTO_CHACHA20_X86_64=m
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=y
CONFIG_CRYPTO_SERPENT_AVX_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=m
# CONFIG_CRYPTO_SM4 is not set
# CONFIG_CRYPTO_SPECK is not set
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_TWOFISH_COMMON=y
CONFIG_CRYPTO_TWOFISH_X86_64=y
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=y
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_842=y
# CONFIG_CRYPTO_LZ4 is not set
CONFIG_CRYPTO_LZ4HC=y
# CONFIG_CRYPTO_ZSTD is not set

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=m
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
CONFIG_CRYPTO_DRBG_CTR=y
CONFIG_CRYPTO_DRBG=m
CONFIG_CRYPTO_JITTERENTROPY=m
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=y
CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
# CONFIG_ASYMMETRIC_KEY_TYPE is not set

#
# Certificates for signature checking
#
# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_RATIONAL=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=y
# CONFIG_CRC32_SLICEBY8 is not set
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
CONFIG_CRC32_BIT=y
# CONFIG_CRC64 is not set
CONFIG_CRC4=y
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_CRC8=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_842_COMPRESS=y
CONFIG_842_DECOMPRESS=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4HC_COMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_INTERVAL_TREE=y
CONFIG_RADIX_TREE_MULTIORDER=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DMA_DIRECT_OPS=y
CONFIG_SWIOTLB=y
CONFIG_SGL_ALLOC=y
CONFIG_IOMMU_HELPER=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_GLOB_SELFTEST=m
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_CORDIC=y
CONFIG_DDR=y
# CONFIG_IRQ_POLL is not set
CONFIG_MPILIB=y
CONFIG_OID_REGISTRY=m
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_STACKDEPOT=y
CONFIG_PRIME_NUMBERS=y
CONFIG_STRING_SELFTEST=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_GDB_SCRIPTS is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=8192
CONFIG_STRIP_ASM_SYMS=y
CONFIG_READABLE_ASM=y
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_FRAME_POINTER=y
CONFIG_STACK_VALIDATION=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
# CONFIG_MAGIC_SYSRQ_SERIAL is not set
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
CONFIG_DEBUG_PAGEALLOC=y
# CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_DEBUG_PAGE_REF=y
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_SELFTEST=y
CONFIG_DEBUG_OBJECTS_FREE=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
# CONFIG_DEBUG_OBJECTS_WORK is not set
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
# CONFIG_SLUB_DEBUG_ON is not set
CONFIG_SLUB_STATS=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VM_VMACACHE=y
# CONFIG_DEBUG_VM_RB is not set
# CONFIG_DEBUG_VM_PGFLAGS is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
CONFIG_DEBUG_VIRTUAL=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_PER_CPU_MAPS=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_KASAN=y
# CONFIG_KASAN_EXTRA is not set
# CONFIG_KASAN_OUTLINE is not set
CONFIG_KASAN_INLINE=y
CONFIG_TEST_KASAN=m
CONFIG_ARCH_HAS_KCOV=y
# CONFIG_KCOV is not set
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
CONFIG_HARDLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=0
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_DEBUG_TIMEKEEPING=y

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
CONFIG_LOCK_STAT=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
# CONFIG_DEBUG_RWSEMS is not set
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_LOCKDEP=y
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_LOCK_TORTURE_TEST=m
CONFIG_WW_MUTEX_SELFTEST=y
CONFIG_TRACE_IRQFLAGS=y
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_KOBJECT_RELEASE is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_DEBUG_CREDENTIALS=y

#
# RCU Debugging
#
CONFIG_TORTURE_TEST=m
CONFIG_RCU_PERF_TEST=m
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_EQS_DEBUG=y
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
CONFIG_CPU_HOTPLUG_STATE_CONTROL=y
CONFIG_NOTIFIER_ERROR_INJECTION=y
# CONFIG_PM_NOTIFIER_ERROR_INJECT is not set
CONFIG_NETDEV_NOTIFIER_ERROR_INJECT=y
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_PREEMPTIRQ_TRACEPOINTS=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
# CONFIG_FUNCTION_GRAPH_TRACER is not set
CONFIG_PREEMPTIRQ_EVENTS=y
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_HWLAT_TRACER is not set
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_TRACE_BRANCH_PROFILING=y
# CONFIG_BRANCH_PROFILE_NONE is not set
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
CONFIG_PROFILE_ALL_BRANCHES=y
CONFIG_TRACING_BRANCHES=y
CONFIG_BRANCH_TRACER=y
# CONFIG_STACK_TRACER is not set
CONFIG_UPROBE_EVENTS=y
CONFIG_PROBE_EVENTS=y
# CONFIG_DYNAMIC_FTRACE is not set
CONFIG_FUNCTION_PROFILER=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
# CONFIG_HIST_TRIGGERS is not set
CONFIG_TRACEPOINT_BENCHMARK=y
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
CONFIG_PREEMPTIRQ_DELAY_TEST=m
CONFIG_TRACE_EVAL_MAP_FILE=y
CONFIG_TRACING_EVENTS_GPIO=y
# CONFIG_GCOV_PROFILE_FTRACE is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
# CONFIG_MEMTEST is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
CONFIG_UBSAN=y
# CONFIG_UBSAN_SANITIZE_ALL is not set
# CONFIG_UBSAN_ALIGNMENT is not set
CONFIG_TEST_UBSAN=m
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_X86_VERBOSE_BOOTUP=y
# CONFIG_EARLY_PRINTK is not set
CONFIG_X86_PTDUMP_CORE=y
# CONFIG_X86_PTDUMP is not set
CONFIG_DEBUG_WX=y
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_DEBUG is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
# CONFIG_IO_DELAY_0X80 is not set
CONFIG_IO_DELAY_0XED=y
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=1
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y
CONFIG_DEBUG_ENTRY=y
# CONFIG_DEBUG_NMI_SELFTEST is not set
CONFIG_X86_DEBUG_FPU=y
# CONFIG_PUNIT_ATOM_DEBUG is not set
# CONFIG_UNWINDER_ORC is not set
CONFIG_UNWINDER_FRAME_POINTER=y

[-- Attachment #3: job-script --]
[-- Type: text/plain, Size: 4493 bytes --]

#!/bin/sh

export_top_env()
{
	export suite='boot'
	export testcase='boot'
	export timeout='10m'
	export job_origin='/lkp/lkp/src/jobs/boot.yaml'
	export queue='validate'
	export testbox='vm-kbuild-8G-1'
	export tbox_group='vm-kbuild-8G'
	export branch='linux-devel/devel-catchup-201809221100'
	export commit='25217c6e39560eeadb338e0140ee215410200b67'
	export kconfig='x86_64-randconfig-g0-09220831'
	export repeat_to=4
	export submit_id='5ba61b400b9a934d51b22c30'
	export job_file='/lkp/jobs/scheduled/vm-kbuild-8G-1/boot-1-debian-x86_64-2018-04-03.cgz-25217c6e39560eeadb338e0140ee215410200b67-20180922-85329-1u8ht3f-3.yaml'
	export id='01c6cac710a5e65a3ddf33bfa91d09e2d2e4876c'
	export model='qemu-system-x86_64 -enable-kvm -cpu qemu64,+ssse3'
	export nr_vm=8
	export nr_cpu=4
	export memory='8G'
	export disk_type='virtio-scsi'
	export hdd_partitions='/dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf'
	export swap_partitions='/dev/sdg'
	export need_kconfig='CONFIG_KVM_GUEST=y'
	export compiler='gcc-4.9'
	export rootfs='debian-x86_64-2018-04-03.cgz'
	export enqueue_time='2018-09-22 18:36:49 +0800'
	export _id='5ba61b440b9a934d51b22c31'
	export _rt='/result/boot/1/vm-kbuild-8G/debian-x86_64-2018-04-03.cgz/x86_64-randconfig-g0-09220831/gcc-4.9/25217c6e39560eeadb338e0140ee215410200b67'
	export user='lkp'
	export result_root='/result/boot/1/vm-kbuild-8G/debian-x86_64-2018-04-03.cgz/x86_64-randconfig-g0-09220831/gcc-4.9/25217c6e39560eeadb338e0140ee215410200b67/3'
	export LKP_SERVER='inn'
	export max_uptime=600
	export initrd='/osimage/debian/debian-x86_64-2018-04-03.cgz'
	export bootloader_append='root=/dev/ram0
user=lkp
job=/lkp/jobs/scheduled/vm-kbuild-8G-1/boot-1-debian-x86_64-2018-04-03.cgz-25217c6e39560eeadb338e0140ee215410200b67-20180922-85329-1u8ht3f-3.yaml
ARCH=x86_64
kconfig=x86_64-randconfig-g0-09220831
branch=linux-devel/devel-catchup-201809221100
commit=25217c6e39560eeadb338e0140ee215410200b67
BOOT_IMAGE=/pkg/linux/x86_64-randconfig-g0-09220831/gcc-4.9/25217c6e39560eeadb338e0140ee215410200b67/vmlinuz-4.19.0-rc4-00108-g25217c6
max_uptime=600
RESULT_ROOT=/result/boot/1/vm-kbuild-8G/debian-x86_64-2018-04-03.cgz/x86_64-randconfig-g0-09220831/gcc-4.9/25217c6e39560eeadb338e0140ee215410200b67/3
LKP_SERVER=inn
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw'
	export modules_initrd='/pkg/linux/x86_64-randconfig-g0-09220831/gcc-4.9/25217c6e39560eeadb338e0140ee215410200b67/modules.cgz'
	export bm_initrd='/osimage/deps/debian-x86_64-2018-04-03.cgz/run-ipconfig_2018-04-03.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/lkp_2018-04-03.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/rsync-rootfs_2018-04-03.cgz'
	export lkp_initrd='/lkp/lkp/lkp-x86_64.cgz'
	export site='inn'
	export LKP_CGI_PORT=80
	export LKP_CIFS_PORT=139
	export kernel='/pkg/linux/x86_64-randconfig-g0-09220831/gcc-4.9/25217c6e39560eeadb338e0140ee215410200b67/vmlinuz-4.19.0-rc4-00108-g25217c6'
	export dequeue_time='2018-09-22 18:38:40 +0800'
	export job_initrd='/lkp/jobs/scheduled/vm-kbuild-8G-1/boot-1-debian-x86_64-2018-04-03.cgz-25217c6e39560eeadb338e0140ee215410200b67-20180922-85329-1u8ht3f-3.cgz'

	[ -n "$LKP_SRC" ] ||
	export LKP_SRC=/lkp/${user:-lkp}/src
}

run_job()
{
	echo $$ > $TMP/run-job.pid

	. $LKP_SRC/lib/http.sh
	. $LKP_SRC/lib/job.sh
	. $LKP_SRC/lib/env.sh

	export_top_env

	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-slabinfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-meminfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper memmap
	run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time
	run_monitor $LKP_SRC/monitors/wrapper kmsg
	run_monitor $LKP_SRC/monitors/wrapper oom-killer
	run_monitor $LKP_SRC/monitors/plain/watchdog

	run_test $LKP_SRC/tests/wrapper sleep 1
}

extract_stats()
{
	$LKP_SRC/stats/wrapper boot-slabinfo
	$LKP_SRC/stats/wrapper boot-meminfo
	$LKP_SRC/stats/wrapper memmap
	$LKP_SRC/stats/wrapper boot-memory
	$LKP_SRC/stats/wrapper boot-time
	$LKP_SRC/stats/wrapper kernel-size
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper sleep

	$LKP_SRC/stats/wrapper time sleep.time
	$LKP_SRC/stats/wrapper time
	$LKP_SRC/stats/wrapper dmesg
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper stderr
	$LKP_SRC/stats/wrapper last_state
}

"$@"

[-- Attachment #4: dmesg.xz --]
[-- Type: application/x-xz, Size: 12764 bytes --]

^ permalink raw reply	[flat|nested] 59+ messages in thread

* [LKP] [timens] 3cc8de9dcb: RIP:posix_get_boottime
  2018-09-19 20:50 ` [RFC 04/20] timens: Introduce CLOCK_BOOTTIME offset Dmitry Safonov
@ 2018-09-30  3:18   ` kernel test robot
  0 siblings, 0 replies; 59+ messages in thread
From: kernel test robot @ 2018-09-30  3:18 UTC (permalink / raw)
  To: Dmitry Safonov
  Cc: linux-kernel, Dmitry Safonov, Andrei Vagin, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, Eric W. Biederman, H. Peter Anvin, Ingo Molnar,
	Jeff Dike, Oleg Nesterov, Pavel Emelyanov, Shuah Khan,
	Thomas Gleixner, containers, criu, linux-api, x86, lkp

[-- Attachment #1: Type: text/plain, Size: 4375 bytes --]

FYI, we noticed the following commit (built with gcc-6):

commit: 3cc8de9dcbe53955edcc65122f169666b4f6cbd9 ("[RFC 04/20] timens: Introduce CLOCK_BOOTTIME offset")
url: https://github.com/0day-ci/linux/commits/Dmitry-Safonov/ns-Introduce-Time-Namespace/20180920-194322


in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu IvyBridge -smp 4 -m 2G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+---------------------------------------------------------+------------+------------+
|                                                         | 05dd6588ce | 3cc8de9dcb |
+---------------------------------------------------------+------------+------------+
| boot_successes                                          | 2          | 0          |
| boot_failures                                           | 13         | 10         |
| invoked_oom-killer:gfp_mask=0x                          | 2          | 6          |
| Mem-Info                                                | 2          | 6          |
| Out_of_memory_and_no_killable_processes                 | 2          | 6          |
| Kernel_panic-not_syncing:System_is_deadlocked_on_memory | 2          | 6          |
| BUG:unable_to_handle_kernel                             | 10         | 4          |
| Oops:#[##]                                              | 11         | 4          |
| RIP:timens_adjust_monotonic                             | 11         |            |
| Kernel_panic-not_syncing:Fatal_exception                | 11         | 4          |
| RIP:posix_get_boottime                                  | 0          | 4          |
+---------------------------------------------------------+------------+------------+



[    9.781291] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
[    9.782843] PGD 0 P4D 0 
[    9.783186] Oops: 0000 [#1] PTI
[    9.783604] CPU: 0 PID: 1 Comm: systemd Not tainted 4.19.0-rc4-00099-g3cc8de9d #1
[    9.784565] RIP: 0010:posix_get_boottime+0x3c/0xad
[    9.785183] Code: 8b 04 25 28 00 00 00 48 89 45 e0 31 c0 e8 20 67 03 00 48 8b 04 25 40 50 04 82 48 8b 80 c0 04 00 00 bf 01 00 00 00 48 8b 40 30 <4c> 8b 60 30 e8 10 88 ff ff 48 89 c7 e8 d9 12 ff ff 4d 85 e4 48 89
[    9.787540] RSP: 0018:ffffc9000000be88 EFLAGS: 00010293
[    9.788211] RAX: 0000000000000000 RBX: ffffc9000000bed0 RCX: ffff880076898040
[    9.789112] RDX: 0000000000000000 RSI: ffffffff8113136f RDI: 0000000000000001
[    9.790028] RBP: ffffc9000000beb8 R08: 0000000000000000 R09: 0000000000000000
[    9.790936] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff81c111a0
[    9.791840] R13: 0000000000000007 R14: 00007ffd481e35e0 R15: 0000000000000000
[    9.792747] FS:  00007fd2fc3c9940(0000) GS:ffffffff82041000(0000) knlGS:0000000000000000
[    9.793769] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.794510] CR2: 0000000000000030 CR3: 000000007fb2e000 CR4: 00000000001406b0
[    9.795413] Call Trace:
[    9.795738]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[    9.796422]  __se_sys_clock_gettime+0x51/0xa7
[    9.796970]  ? lockdep_hardirqs_on+0x144/0x19e
[    9.797540]  __x64_sys_clock_gettime+0x1a/0x1d
[    9.798098]  do_syscall_64+0x73/0x1d2
[    9.798569]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[    9.799251] RIP: 0033:0x7ffd481eabbc
[    9.799709] Code: f8 48 8b 15 36 c5 ff ff 48 89 16 48 8b 15 34 c5 ff ff 48 89 56 08 3b 03 0f 84 0a ff ff ff eb db 49 63 fb b8 e4 00 00 00 0f 05 <48> 83 c4 10 5b 41 5c 41 5d 5d c3 66 0f 1f 84 00 00 00 00 00 55 48
[    9.802405] RSP: 002b:00007ffd481e3588 EFLAGS: 00000202 ORIG_RAX: 00000000000000e4
[    9.803735] RAX: ffffffffffffffda RBX: 00007ffd481e7080 RCX: 00007ffd481eabbc
[    9.804844] RDX: ffffffffffffffff RSI: 00007ffd481e35e0 RDI: 0000000000000007
[    9.806155] RBP: 00007ffd481e35b0 R08: 0000000000000004 R09: 000000032ddb0949
[    9.807568] R10: 000dc97587800000 R11: 0000000000000202 R12: 00007ffd481e3620
[    9.808965] R13: 00007ffd481e3594 R14: 0000000000000001 R15: 0000000000000000
[    9.810438] Modules linked in: ip_tables x_tables
[    9.811034] CR2: 0000000000000030
[    9.811629] ---[ end trace a935ae5a1b8f0750 ]---


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email



Thanks,
Rong Chen

[-- Attachment #2: config-4.19.0-rc4-00099-g3cc8de9d --]
[-- Type: text/plain, Size: 114429 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 4.19.0-rc4 Kernel Configuration
#

#
# Compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
#
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=60400
CONFIG_CLANG_VERSION=0
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
CONFIG_KERNEL_LZ4=y
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_WATCH=y
CONFIG_AUDIT_TREE=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_SIM=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
CONFIG_IRQ_TIME_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TINY_SRCU=y
CONFIG_TASKS_RCU=y
CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=20
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
CONFIG_MEMCG=y
CONFIG_MEMCG_KMEM=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
# CONFIG_RT_GROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
CONFIG_CGROUP_PERF=y
# CONFIG_CGROUP_BPF is not set
CONFIG_CGROUP_DEBUG=y
CONFIG_SOCK_CGROUP_DATA=y
# CONFIG_NAMESPACES is not set
CONFIG_CHECKPOINT_RESTORE=y
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
# CONFIG_RD_LZMA is not set
# CONFIG_RD_XZ is not set
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_BPF=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_MULTIUSER=y
# CONFIG_SGETMASK_SYSCALL is not set
# CONFIG_SYSFS_SYSCALL is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_PRINTK_NMI=y
CONFIG_BUG=y
CONFIG_PCSPKR_PLATFORM=y
# CONFIG_BASE_FULL is not set
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
# CONFIG_ADVISE_SYSCALLS is not set
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT_ALWAYS_ON=y
# CONFIG_USERFAULTFD is not set
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_RSEQ=y
# CONFIG_DEBUG_RSEQ is not set
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y
CONFIG_PC104=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
CONFIG_DEBUG_PERF_USE_VMALLOC=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_SLAB_MERGE_DEFAULT is not set
CONFIG_SLAB_FREELIST_RANDOM=y
# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_FILTER_PGPROT=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DYNAMIC_PHYSICAL_MASK=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
CONFIG_ZONE_DMA=y
# CONFIG_SMP is not set
CONFIG_X86_FEATURE_NAMES=y
# CONFIG_X86_X2APIC is not set
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
# CONFIG_RETPOLINE is not set
CONFIG_INTEL_RDT=y
# CONFIG_X86_EXTENDED_PLATFORM is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
# CONFIG_IOSF_MBI is not set
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
# CONFIG_KVM_DEBUG_FS is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
# CONFIG_JAILHOUSE_GUEST is not set
CONFIG_NO_BOOTMEM=y
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
# CONFIG_DMI is not set
# CONFIG_GART_IOMMU is not set
# CONFIG_CALGARY_IOMMU is not set
CONFIG_NR_CPUS_RANGE_BEGIN=1
CONFIG_NR_CPUS_RANGE_END=1
CONFIG_NR_CPUS_DEFAULT=1
CONFIG_NR_CPUS=1
CONFIG_UP_LATE_INIT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
# CONFIG_X86_MCE is not set

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
CONFIG_PERF_EVENTS_INTEL_RAPL=y
CONFIG_PERF_EVENTS_INTEL_CSTATE=y
CONFIG_PERF_EVENTS_AMD_POWER=y
CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
CONFIG_I8K=y
# CONFIG_MICROCODE is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=m
# CONFIG_X86_5LEVEL is not set
CONFIG_X86_DIRECT_GBPAGES=y
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_AMD_MEM_ENCRYPT=y
CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y
CONFIG_ARCH_USE_MEMREMAP_PROT=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
# CONFIG_ARCH_RANDOM is not set
# CONFIG_X86_SMAP is not set
# CONFIG_X86_INTEL_UMIP is not set
# CONFIG_X86_INTEL_MPX is not set
# CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS is not set
# CONFIG_EFI is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
# CONFIG_KEXEC_FILE is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
# CONFIG_COMPAT_VDSO is not set
CONFIG_LEGACY_VSYSCALL_EMULATE=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
CONFIG_HAVE_LIVEPATCH=y
CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=y

#
# Power management and ACPI options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_SUSPEND_SKIP_SYNC=y
CONFIG_PM_SLEEP=y
CONFIG_PM_AUTOSLEEP=y
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_PM_TRACE_RTC is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_PROCFS_POWER is not set
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_TAD is not set
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=y
# CONFIG_ACPI_IPMI is not set
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_CUSTOM_DSDT_FILE=""
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
# CONFIG_ACPI_CONTAINER is not set
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_DPTF_POWER is not set
# CONFIG_PMIC_OPREGION is not set
# CONFIG_ACPI_CONFIGFS is not set
CONFIG_X86_PM_TIMER=y
# CONFIG_SFI is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
# CONFIG_CPU_FREQ_STAT is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y

#
# CPU frequency scaling drivers
#
# CONFIG_X86_INTEL_PSTATE is not set
# CONFIG_X86_PCC_CPUFREQ is not set
# CONFIG_X86_ACPI_CPUFREQ is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set

#
# shared options
#

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
CONFIG_INTEL_IDLE=y

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
CONFIG_MMCONF_FAM10H=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
# CONFIG_PCIEPORTBUS is not set
# CONFIG_PCI_MSI is not set
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
CONFIG_PCI_LOCKLESS_CONFIG=y
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_LABEL=y
# CONFIG_HOTPLUG_PCI is not set

#
# PCI controller drivers
#

#
# Cadence PCIe controllers support
#

#
# DesignWare PCI Core Support
#

#
# PCI Endpoint
#
CONFIG_PCI_ENDPOINT=y
# CONFIG_PCI_ENDPOINT_CONFIGFS is not set
CONFIG_PCI_EPF_TEST=m

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# CONFIG_ISA_BUS is not set
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set
CONFIG_X86_SYSFB=y

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_AOUT is not set
CONFIG_X86_X32=y
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_HAVE_GENERIC_GUP=y

#
# Firmware Drivers
#
CONFIG_EDD=m
CONFIG_EDD_OFF=y
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DELL_RBU=y
CONFIG_DCDBAS=y
# CONFIG_ISCSI_IBFT_FIND is not set
CONFIG_FW_CFG_SYSFS=m
# CONFIG_FW_CFG_SYSFS_CMDLINE is not set
CONFIG_GOOGLE_FIRMWARE=y
# CONFIG_GOOGLE_COREBOOT_TABLE_ACPI is not set

#
# Tegra firmware driver
#
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
# CONFIG_KVM is not set
CONFIG_VHOST_NET=y
CONFIG_VHOST_VSOCK=m
CONFIG_VHOST=y
CONFIG_VHOST_CROSS_ENDIAN_LEGACY=y

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
CONFIG_STATIC_KEYS_SELFTEST=y
CONFIG_OPTPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_RCU_TABLE_FREE=y
CONFIG_HAVE_RCU_TABLE_INVALIDATE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
CONFIG_HAVE_COPY_THREAD_TLS=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_ISA_BUS_API=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_ARCH_HAS_REFCOUNT=y
# CONFIG_REFCOUNT_FULL is not set
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
CONFIG_PLUGIN_HOSTCC="g++"
CONFIG_HAVE_GCC_PLUGINS=y
# CONFIG_GCC_PLUGINS is not set
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=1
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
# CONFIG_TRIM_UNUSED_KSYMS is not set
CONFIG_MODULES_TREE_LOOKUP=y
# CONFIG_BLOCK is not set
CONFIG_ASN1=m
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=y
# CONFIG_COREDUMP is not set

#
# Memory Management options
#
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_TRANSPARENT_HUGEPAGE=y
# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
CONFIG_ARCH_WANTS_THP_SWAP=y
CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
# CONFIG_CMA_DEBUGFS is not set
CONFIG_CMA_AREAS=7
# CONFIG_MEM_SOFT_DIRTY is not set
# CONFIG_ZPOOL is not set
CONFIG_ZBUD=y
# CONFIG_ZSMALLOC is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_ZONE_DEVICE=y
CONFIG_FRAME_VECTOR=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_BENCHMARK is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_NET=y
CONFIG_NET_INGRESS=y

#
# Networking options
#
CONFIG_PACKET=m
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
# CONFIG_TLS is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=m
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_INTERFACE is not set
# CONFIG_XFRM_SUB_POLICY is not set
CONFIG_XFRM_MIGRATE=y
# CONFIG_XFRM_STATISTICS is not set
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_XDP_SOCKETS=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=y
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
CONFIG_INET_TUNNEL=y
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_INET_RAW_DIAG is not set
# CONFIG_INET_DIAG_DESTROY is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_IPV6_ILA is not set
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=y
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_ADVANCED is not set

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_LOG_COMMON=m
# CONFIG_NF_LOG_NETDEV is not set
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_PROCFS=y
# CONFIG_NF_CONNTRACK_LABELS is not set
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_IRC=m
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CT_NETLINK=m
# CONFIG_NETFILTER_NETLINK_GLUE_CT is not set
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_SIP=m
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=m

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_NAT=m
# CONFIG_NETFILTER_XT_TARGET_NETMAP is not set
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
# CONFIG_NETFILTER_XT_TARGET_REDIRECT is not set
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
# CONFIG_NF_SOCKET_IPV4 is not set
# CONFIG_NF_TPROXY_IPV4 is not set
# CONFIG_NF_DUP_IPV4 is not set
CONFIG_NF_LOG_ARP=m
CONFIG_NF_LOG_IPV4=m
CONFIG_NF_REJECT_IPV4=m
CONFIG_NF_NAT_IPV4=m
CONFIG_NF_NAT_MASQUERADE_IPV4=y
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_RAW is not set

#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_SOCKET_IPV6 is not set
# CONFIG_NF_TPROXY_IPV6 is not set
# CONFIG_NF_DUP_IPV6 is not set
CONFIG_NF_REJECT_IPV6=m
CONFIG_NF_LOG_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
# CONFIG_IP6_NF_RAW is not set
CONFIG_NF_DEFRAG_IPV6=m
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
CONFIG_ATM=y
# CONFIG_ATM_CLIP is not set
CONFIG_ATM_LANE=y
# CONFIG_ATM_MPOA is not set
# CONFIG_ATM_BR2684 is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=y
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_VLAN_8021Q_MVRP is not set
CONFIG_DECNET=y
# CONFIG_DECNET_ROUTER is not set
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
CONFIG_PHONET=m
# CONFIG_6LOWPAN is not set
CONFIG_IEEE802154=y
# CONFIG_IEEE802154_NL802154_EXPERIMENTAL is not set
# CONFIG_IEEE802154_SOCKET is not set
# CONFIG_MAC802154 is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
# CONFIG_NET_SCH_CBQ is not set
CONFIG_NET_SCH_HTB=y
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_ATM=m
# CONFIG_NET_SCH_PRIO is not set
CONFIG_NET_SCH_MULTIQ=y
CONFIG_NET_SCH_RED=y
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=y
CONFIG_NET_SCH_CBS=m
# CONFIG_NET_SCH_ETF is not set
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=y
# CONFIG_NET_SCH_NETEM is not set
# CONFIG_NET_SCH_DRR is not set
CONFIG_NET_SCH_MQPRIO=y
CONFIG_NET_SCH_SKBPRIO=m
CONFIG_NET_SCH_CHOKE=m
CONFIG_NET_SCH_QFQ=m
# CONFIG_NET_SCH_CODEL is not set
# CONFIG_NET_SCH_FQ_CODEL is not set
CONFIG_NET_SCH_CAKE=y
# CONFIG_NET_SCH_FQ is not set
CONFIG_NET_SCH_HHF=y
CONFIG_NET_SCH_PIE=m
CONFIG_NET_SCH_PLUG=m
# CONFIG_NET_SCH_DEFAULT is not set

#
# Classification
#
CONFIG_NET_CLS=y
# CONFIG_NET_CLS_BASIC is not set
# CONFIG_NET_CLS_TCINDEX is not set
# CONFIG_NET_CLS_ROUTE4 is not set
CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_U32=y
# CONFIG_CLS_U32_PERF is not set
# CONFIG_CLS_U32_MARK is not set
# CONFIG_NET_CLS_RSVP is not set
CONFIG_NET_CLS_RSVP6=y
CONFIG_NET_CLS_FLOW=m
# CONFIG_NET_CLS_CGROUP is not set
CONFIG_NET_CLS_BPF=m
# CONFIG_NET_CLS_FLOWER is not set
CONFIG_NET_CLS_MATCHALL=m
# CONFIG_NET_EMATCH is not set
# CONFIG_NET_CLS_ACT is not set
# CONFIG_NET_CLS_IND is not set
CONFIG_NET_SCH_FIFO=y
# CONFIG_DCB is not set
# CONFIG_DNS_RESOLVER is not set
CONFIG_BATMAN_ADV=m
# CONFIG_BATMAN_ADV_BATMAN_V is not set
CONFIG_BATMAN_ADV_BLA=y
CONFIG_BATMAN_ADV_DAT=y
CONFIG_BATMAN_ADV_NC=y
# CONFIG_BATMAN_ADV_MCAST is not set
CONFIG_BATMAN_ADV_DEBUGFS=y
CONFIG_BATMAN_ADV_DEBUG=y
# CONFIG_OPENVSWITCH is not set
CONFIG_VSOCKETS=m
CONFIG_VSOCKETS_DIAG=m
CONFIG_VIRTIO_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS_COMMON=m
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_NET_NSH is not set
CONFIG_HSR=m
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_NET_NCSI is not set
# CONFIG_CGROUP_NET_PRIO is not set
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_STREAM_PARSER=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_DROP_MONITOR is not set
CONFIG_HAMRADIO=y

#
# Packet Radio protocols
#
CONFIG_AX25=y
# CONFIG_AX25_DAMA_SLAVE is not set
CONFIG_NETROM=y
# CONFIG_ROSE is not set

#
# AX.25 network device drivers
#
# CONFIG_MKISS is not set
# CONFIG_6PACK is not set
CONFIG_BPQETHER=y
# CONFIG_BAYCOM_SER_FDX is not set
# CONFIG_BAYCOM_SER_HDX is not set
CONFIG_YAM=m
CONFIG_CAN=y
# CONFIG_CAN_RAW is not set
CONFIG_CAN_BCM=y
CONFIG_CAN_GW=y

#
# CAN Device Drivers
#
# CONFIG_CAN_VCAN is not set
# CONFIG_CAN_VXCAN is not set
# CONFIG_CAN_SLCAN is not set
CONFIG_CAN_DEV=m
# CONFIG_CAN_CALC_BITTIMING is not set
# CONFIG_CAN_C_CAN is not set
CONFIG_CAN_CC770=m
# CONFIG_CAN_CC770_ISA is not set
CONFIG_CAN_CC770_PLATFORM=m
CONFIG_CAN_IFI_CANFD=m
# CONFIG_CAN_M_CAN is not set
# CONFIG_CAN_PEAK_PCIEFD is not set
CONFIG_CAN_SJA1000=m
# CONFIG_CAN_SJA1000_ISA is not set
# CONFIG_CAN_SJA1000_PLATFORM is not set
# CONFIG_CAN_EMS_PCI is not set
# CONFIG_CAN_PEAK_PCI is not set
# CONFIG_CAN_KVASER_PCI is not set
# CONFIG_CAN_PLX_PCI is not set
CONFIG_CAN_SOFTING=m

#
# CAN USB interfaces
#
CONFIG_CAN_8DEV_USB=m
CONFIG_CAN_EMS_USB=m
CONFIG_CAN_ESD_USB2=m
CONFIG_CAN_GS_USB=m
# CONFIG_CAN_KVASER_USB is not set
# CONFIG_CAN_MCBA_USB is not set
CONFIG_CAN_PEAK_USB=m
# CONFIG_CAN_UCAN is not set
# CONFIG_CAN_DEBUG_DEVICES is not set
CONFIG_BT=m
# CONFIG_BT_BREDR is not set
CONFIG_BT_LE=y
# CONFIG_BT_LEDS is not set
# CONFIG_BT_SELFTEST is not set
# CONFIG_BT_DEBUGFS is not set

#
# Bluetooth device drivers
#
CONFIG_BT_INTEL=m
CONFIG_BT_RTL=m
CONFIG_BT_HCIBTUSB=m
# CONFIG_BT_HCIBTUSB_AUTOSUSPEND is not set
# CONFIG_BT_HCIBTUSB_BCM is not set
CONFIG_BT_HCIBTUSB_RTL=y
# CONFIG_BT_HCIUART is not set
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=m
# CONFIG_BT_HCIBFUSB is not set
CONFIG_BT_HCIVHCI=m
CONFIG_BT_MRVL=m
# CONFIG_BT_ATH3K is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_STREAM_PARSER=y
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set

#
# CFG80211 needs to be enabled for MAC80211
#
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
CONFIG_WIMAX=m
CONFIG_WIMAX_DEBUG_LEVEL=8
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
CONFIG_RFKILL_GPIO=m
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_NET_9P_DEBUG=y
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
CONFIG_NFC=m
# CONFIG_NFC_DIGITAL is not set
CONFIG_NFC_NCI=m
# CONFIG_NFC_NCI_UART is not set
CONFIG_NFC_HCI=m
# CONFIG_NFC_SHDLC is not set

#
# Near Field Communication (NFC) devices
#
CONFIG_NFC_FDP=m
# CONFIG_NFC_FDP_I2C is not set
CONFIG_NFC_PN533=m
CONFIG_NFC_PN533_USB=m
# CONFIG_NFC_PN533_I2C is not set
CONFIG_NFC_MRVL=m
CONFIG_NFC_MRVL_USB=m
CONFIG_NFC_MRVL_I2C=m
CONFIG_NFC_ST_NCI=m
CONFIG_NFC_ST_NCI_I2C=m
CONFIG_NFC_NXP_NCI=m
CONFIG_NFC_NXP_NCI_I2C=m
CONFIG_NFC_S3FWRN5=m
CONFIG_NFC_S3FWRN5_I2C=m
# CONFIG_PSAMPLE is not set
CONFIG_NET_IFE=y
CONFIG_LWTUNNEL=y
# CONFIG_LWTUNNEL_BPF is not set
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_NET_DEVLINK=y
CONFIG_MAY_USE_DEVLINK=y
# CONFIG_FAILOVER is not set
CONFIG_HAVE_EBPF_JIT=y

#
# Device Drivers
#

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_WANT_DEV_COREDUMP=y
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
CONFIG_DEBUG_DEVRES=y
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_W1=m
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# CONFIG_DMA_CMA is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
CONFIG_GNSS=y
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y

#
# Protocols
#
CONFIG_PNPACPI=y

#
# NVME Support
#

#
# Misc devices
#
CONFIG_AD525X_DPOT=m
# CONFIG_AD525X_DPOT_I2C is not set
CONFIG_DUMMY_IRQ=y
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
CONFIG_ICS932S401=m
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
CONFIG_HMC6352=m
# CONFIG_DS1682 is not set
CONFIG_USB_SWITCH_FSA9480=m
CONFIG_SRAM=y
# CONFIG_PCI_ENDPOINT_TEST is not set
CONFIG_C2PORT=m
CONFIG_C2PORT_DURAMAR_2150=m

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module (requires I2C)
#
CONFIG_ALTERA_STAPL=m
# CONFIG_INTEL_MEI is not set
# CONFIG_INTEL_MEI_ME is not set
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_VMWARE_VMCI is not set

#
# Intel MIC & related support
#

#
# Intel MIC Bus Driver
#
# CONFIG_INTEL_MIC_BUS is not set

#
# SCIF Bus Driver
#
# CONFIG_SCIF_BUS is not set

#
# VOP Bus Driver
#
# CONFIG_VOP_BUS is not set

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCIF Driver
#

#
# Intel MIC Coprocessor State Management (COSM) Drivers
#

#
# VOP Driver
#
# CONFIG_GENWQE is not set
CONFIG_ECHO=m
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_MISC_RTSX_USB is not set
CONFIG_HAVE_IDE=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_VIRTIO_NET is not set
# CONFIG_NLMON is not set
# CONFIG_VSOCKMON is not set
# CONFIG_ARCNET is not set
CONFIG_ATM_DRIVERS=y
# CONFIG_ATM_DUMMY is not set
# CONFIG_ATM_TCP is not set
# CONFIG_ATM_LANAI is not set
# CONFIG_ATM_ENI is not set
# CONFIG_ATM_FIRESTREAM is not set
# CONFIG_ATM_ZATM is not set
# CONFIG_ATM_NICSTAR is not set
# CONFIG_ATM_IDT77252 is not set
# CONFIG_ATM_AMBASSADOR is not set
# CONFIG_ATM_HORIZON is not set
# CONFIG_ATM_IA is not set
# CONFIG_ATM_FORE200E is not set
# CONFIG_ATM_HE is not set
# CONFIG_ATM_SOLOS is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
CONFIG_MDIO=m
CONFIG_NET_VENDOR_3COM=y
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALACRITECH=y
# CONFIG_SLICOSS is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_NET_VENDOR_AMD=y
# CONFIG_AMD8111_ETH is not set
# CONFIG_PCNET32 is not set
# CONFIG_AMD_XGBE is not set
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_AQTION is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
CONFIG_NET_VENDOR_AURORA=y
# CONFIG_AURORA_NB8800 is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_THUNDER_NIC_RGX is not set
CONFIG_CAVIUM_PTP=y
# CONFIG_LIQUIDIO is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
CONFIG_NET_VENDOR_CORTINA=y
# CONFIG_CX_ECAT is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
# CONFIG_NET_TULIP is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_HP=y
# CONFIG_HP100 is not set
CONFIG_NET_VENDOR_HUAWEI=y
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=y
CONFIG_E1000E=m
CONFIG_E1000E_HWTS=y
CONFIG_IGB=m
CONFIG_IGB_HWMON=y
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
CONFIG_IXGBE=m
CONFIG_IXGBE_HWMON=y
# CONFIG_I40E is not set
# CONFIG_JME is not set
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETERION=y
# CONFIG_S2IO is not set
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_NETRONOME=y
CONFIG_NET_VENDOR_NI=y
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PACKET_ENGINES=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_QLGE is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCOM_EMAC is not set
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R8169 is not set
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_ALE is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_MDIO_DEVICE is not set
# CONFIG_PHYLIB is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Host-side USB support is needed for USB Network Adapter support
#
CONFIG_USB_NET_DRIVERS=m
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_IPHETH is not set
CONFIG_WLAN=y
# CONFIG_WIRELESS_WDS is not set
CONFIG_WLAN_VENDOR_ADMTEK=y
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K_PCI is not set
CONFIG_WLAN_VENDOR_ATMEL=y
CONFIG_WLAN_VENDOR_BROADCOM=y
CONFIG_WLAN_VENDOR_CISCO=y
CONFIG_WLAN_VENDOR_INTEL=y
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_PRISM54 is not set
CONFIG_WLAN_VENDOR_MARVELL=y
CONFIG_WLAN_VENDOR_MEDIATEK=y
CONFIG_WLAN_VENDOR_RALINK=y
CONFIG_WLAN_VENDOR_REALTEK=y
CONFIG_WLAN_VENDOR_RSI=y
CONFIG_WLAN_VENDOR_ST=y
CONFIG_WLAN_VENDOR_TI=y
CONFIG_WLAN_VENDOR_ZYDAS=y
CONFIG_WLAN_VENDOR_QUANTENNA=y

#
# WiMAX Wireless Broadband devices
#
# CONFIG_WIMAX_I2400M_USB is not set
# CONFIG_WAN is not set
CONFIG_IEEE802154_DRIVERS=y
# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_NETDEVSIM is not set
# CONFIG_NET_FAILOVER is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=m
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_POLLDEV=m
# CONFIG_INPUT_SPARSEKMAP is not set
CONFIG_INPUT_MATRIXKMAP=m

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_EVBUG=m

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ADC=m
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_QT1070=m
CONFIG_KEYBOARD_QT2160=m
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_GPIO=m
# CONFIG_KEYBOARD_GPIO_POLLED is not set
CONFIG_KEYBOARD_TCA6416=m
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_KEYBOARD_MATRIX=m
CONFIG_KEYBOARD_LM8323=m
# CONFIG_KEYBOARD_LM8333 is not set
CONFIG_KEYBOARD_MAX7359=m
# CONFIG_KEYBOARD_MCS is not set
CONFIG_KEYBOARD_MPR121=m
CONFIG_KEYBOARD_NEWTON=m
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
CONFIG_KEYBOARD_STOWAWAY=m
# CONFIG_KEYBOARD_SUNKBD is not set
CONFIG_KEYBOARD_TM2_TOUCHKEY=m
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
# CONFIG_MOUSE_PS2_ALPS is not set
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
# CONFIG_MOUSE_PS2_CYPRESS is not set
# CONFIG_MOUSE_PS2_TRACKPOINT is not set
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
# CONFIG_MOUSE_PS2_VMMOUSE is not set
CONFIG_MOUSE_PS2_SMBUS=y
# CONFIG_MOUSE_SERIAL is not set
CONFIG_MOUSE_APPLETOUCH=m
# CONFIG_MOUSE_BCM5974 is not set
CONFIG_MOUSE_CYAPA=m
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_GPIO is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_PROPERTIES=y
CONFIG_TOUCHSCREEN_AD7879=m
# CONFIG_TOUCHSCREEN_AD7879_I2C is not set
# CONFIG_TOUCHSCREEN_ADC is not set
CONFIG_TOUCHSCREEN_ATMEL_MXT=m
# CONFIG_TOUCHSCREEN_ATMEL_MXT_T37 is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
CONFIG_TOUCHSCREEN_BU21013=m
CONFIG_TOUCHSCREEN_BU21029=m
# CONFIG_TOUCHSCREEN_CHIPONE_ICN8505 is not set
CONFIG_TOUCHSCREEN_CY8CTMG110=m
CONFIG_TOUCHSCREEN_CYTTSP_CORE=m
# CONFIG_TOUCHSCREEN_CYTTSP_I2C is not set
CONFIG_TOUCHSCREEN_CYTTSP4_CORE=m
CONFIG_TOUCHSCREEN_CYTTSP4_I2C=m
CONFIG_TOUCHSCREEN_DYNAPRO=m
CONFIG_TOUCHSCREEN_HAMPSHIRE=m
# CONFIG_TOUCHSCREEN_EETI is not set
CONFIG_TOUCHSCREEN_EGALAX_SERIAL=m
CONFIG_TOUCHSCREEN_EXC3000=m
CONFIG_TOUCHSCREEN_FUJITSU=m
# CONFIG_TOUCHSCREEN_GOODIX is not set
# CONFIG_TOUCHSCREEN_HIDEEP is not set
CONFIG_TOUCHSCREEN_ILI210X=m
CONFIG_TOUCHSCREEN_S6SY761=m
# CONFIG_TOUCHSCREEN_GUNZE is not set
CONFIG_TOUCHSCREEN_EKTF2127=m
CONFIG_TOUCHSCREEN_ELAN=m
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
CONFIG_TOUCHSCREEN_MAX11801=m
CONFIG_TOUCHSCREEN_MCS5000=m
CONFIG_TOUCHSCREEN_MMS114=m
CONFIG_TOUCHSCREEN_MELFAS_MIP4=m
# CONFIG_TOUCHSCREEN_MTOUCH is not set
CONFIG_TOUCHSCREEN_INEXIO=m
CONFIG_TOUCHSCREEN_MK712=m
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
CONFIG_TOUCHSCREEN_EDT_FT5X06=m
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
CONFIG_TOUCHSCREEN_TOUCHWIN=m
# CONFIG_TOUCHSCREEN_TI_AM335X_TSC is not set
CONFIG_TOUCHSCREEN_PIXCIR=m
# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=m
CONFIG_TOUCHSCREEN_MC13783=m
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
# CONFIG_TOUCHSCREEN_USB_3M is not set
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
CONFIG_TOUCHSCREEN_USB_GUNZE=y
# CONFIG_TOUCHSCREEN_USB_DMC_TSC10 is not set
CONFIG_TOUCHSCREEN_USB_IRTOUCH=y
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
# CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH is not set
# CONFIG_TOUCHSCREEN_USB_GOTOP is not set
# CONFIG_TOUCHSCREEN_USB_JASTEC is not set
CONFIG_TOUCHSCREEN_USB_ELO=y
# CONFIG_TOUCHSCREEN_USB_E2I is not set
CONFIG_TOUCHSCREEN_USB_ZYTRONIC=y
CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y
# CONFIG_TOUCHSCREEN_USB_NEXIO is not set
# CONFIG_TOUCHSCREEN_USB_EASYTOUCH is not set
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
CONFIG_TOUCHSCREEN_TSC200X_CORE=m
CONFIG_TOUCHSCREEN_TSC2004=m
CONFIG_TOUCHSCREEN_TSC2007=m
# CONFIG_TOUCHSCREEN_TSC2007_IIO is not set
# CONFIG_TOUCHSCREEN_RM_TS is not set
CONFIG_TOUCHSCREEN_SILEAD=m
CONFIG_TOUCHSCREEN_SIS_I2C=m
CONFIG_TOUCHSCREEN_ST1232=m
CONFIG_TOUCHSCREEN_STMFTS=m
CONFIG_TOUCHSCREEN_SUR40=m
# CONFIG_TOUCHSCREEN_SX8654 is not set
CONFIG_TOUCHSCREEN_TPS6507X=m
CONFIG_TOUCHSCREEN_ZET6223=m
CONFIG_TOUCHSCREEN_ZFORCE=m
CONFIG_TOUCHSCREEN_ROHM_BU21023=m
# CONFIG_INPUT_MISC is not set
CONFIG_RMI4_CORE=m
CONFIG_RMI4_I2C=m
# CONFIG_RMI4_SMB is not set
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=m
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
CONFIG_RMI4_F30=y
CONFIG_RMI4_F34=y
CONFIG_RMI4_F54=y
CONFIG_RMI4_F55=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_CT82C710=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
CONFIG_SERIO_PS2MULT=m
CONFIG_SERIO_ARC_PS2=m
# CONFIG_SERIO_GPIO_PS2 is not set
CONFIG_USERIO=m
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
# CONFIG_VT is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVMEM is not set
CONFIG_DEVKMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
# CONFIG_SERIAL_8250_MEN_MCB is not set
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
# CONFIG_SERIAL_8250_MOXA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_MEN_Z135 is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_VIRTIO_CONSOLE is not set
CONFIG_IPMI_HANDLER=y
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=y
# CONFIG_IPMI_SI is not set
CONFIG_IPMI_SSIF=m
# CONFIG_IPMI_WATCHDOG is not set
# CONFIG_IPMI_POWEROFF is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_NVRAM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
# CONFIG_HPET is not set
CONFIG_HANGCHECK_TIMER=m
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set
# CONFIG_RANDOM_TRUST_CPU is not set

#
# I2C support
#
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=m

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
CONFIG_I2C_MUX_LTC4306=m
# CONFIG_I2C_MUX_PCA9541 is not set
CONFIG_I2C_MUX_PCA954x=m
CONFIG_I2C_MUX_REG=m
CONFIG_I2C_MUX_MLXCPLD=m
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=m
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_ISMT is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_CBUS_GPIO=m
CONFIG_I2C_DESIGNWARE_CORE=m
CONFIG_I2C_DESIGNWARE_PLATFORM=m
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_KEMPLD is not set
CONFIG_I2C_OCORES=m
CONFIG_I2C_PCA_PLATFORM=m
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
CONFIG_I2C_PARPORT_LIGHT=m
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
CONFIG_I2C_TINY_USB=m
# CONFIG_I2C_VIPERBOARD is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_MLXCPLD is not set
CONFIG_I2C_STUB=m
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
CONFIG_HSI=m
CONFIG_HSI_BOARDINFO=y

#
# HSI controllers
#

#
# HSI clients
#
CONFIG_HSI_CHAR=m
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
CONFIG_PPS_CLIENT_GPIO=y

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_KVM=y
CONFIG_PINCTRL=y
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
CONFIG_PINCTRL_AMD=m
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_BAYTRAIL is not set
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_BROXTON is not set
# CONFIG_PINCTRL_CANNONLAKE is not set
# CONFIG_PINCTRL_CEDARFORK is not set
# CONFIG_PINCTRL_DENVERTON is not set
# CONFIG_PINCTRL_GEMINILAKE is not set
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_LEWISBURG is not set
# CONFIG_PINCTRL_SUNRISEPOINT is not set
CONFIG_PINCTRL_MADERA=m
CONFIG_PINCTRL_CS47L85=y
CONFIG_PINCTRL_CS47L90=y
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_GENERIC=m
CONFIG_GPIO_MAX730X=m

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
CONFIG_GPIO_DWAPB=m
# CONFIG_GPIO_EXAR is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_LYNXPOINT is not set
CONFIG_GPIO_MB86S7X=m
# CONFIG_GPIO_MENZ127 is not set
CONFIG_GPIO_MOCKUP=y
# CONFIG_GPIO_VX855 is not set

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_104_DIO_48E is not set
# CONFIG_GPIO_104_IDIO_16 is not set
CONFIG_GPIO_104_IDI_48=m
# CONFIG_GPIO_F7188X is not set
CONFIG_GPIO_GPIO_MM=y
CONFIG_GPIO_IT87=y
# CONFIG_GPIO_SCH is not set
CONFIG_GPIO_SCH311X=y
CONFIG_GPIO_WINBOND=m
# CONFIG_GPIO_WS16C48 is not set

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
CONFIG_GPIO_MAX7300=m
CONFIG_GPIO_MAX732X=m
CONFIG_GPIO_PCA953X=m
CONFIG_GPIO_PCF857X=m
CONFIG_GPIO_TPIC2810=m

#
# MFD GPIO expanders
#
CONFIG_GPIO_ARIZONA=m
CONFIG_GPIO_BD9571MWV=m
CONFIG_GPIO_KEMPLD=y
CONFIG_GPIO_LP873X=m
CONFIG_GPIO_MADERA=m
# CONFIG_GPIO_TPS65086 is not set
# CONFIG_GPIO_TPS65912 is not set

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set

#
# USB GPIO expanders
#
CONFIG_GPIO_VIPERBOARD=m
CONFIG_W1=y

#
# 1-wire Bus Masters
#
# CONFIG_W1_MASTER_MATROX is not set
CONFIG_W1_MASTER_DS2490=m
CONFIG_W1_MASTER_DS2482=m
# CONFIG_W1_MASTER_DS1WM is not set
CONFIG_W1_MASTER_GPIO=m

#
# 1-wire Slaves
#
CONFIG_W1_SLAVE_THERM=y
CONFIG_W1_SLAVE_SMEM=m
# CONFIG_W1_SLAVE_DS2405 is not set
CONFIG_W1_SLAVE_DS2408=y
CONFIG_W1_SLAVE_DS2408_READBACK=y
# CONFIG_W1_SLAVE_DS2413 is not set
CONFIG_W1_SLAVE_DS2406=y
CONFIG_W1_SLAVE_DS2423=m
# CONFIG_W1_SLAVE_DS2805 is not set
CONFIG_W1_SLAVE_DS2431=m
# CONFIG_W1_SLAVE_DS2433 is not set
CONFIG_W1_SLAVE_DS2438=y
# CONFIG_W1_SLAVE_DS2780 is not set
CONFIG_W1_SLAVE_DS2781=y
# CONFIG_W1_SLAVE_DS28E04 is not set
# CONFIG_W1_SLAVE_DS28E17 is not set
# CONFIG_POWER_AVS is not set
# CONFIG_POWER_RESET is not set
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_SUPPLY_DEBUG=y
CONFIG_PDA_POWER=m
# CONFIG_GENERIC_ADC_BATTERY is not set
# CONFIG_TEST_POWER is not set
CONFIG_CHARGER_ADP5061=m
CONFIG_BATTERY_DS2760=m
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
CONFIG_BATTERY_DS2782=m
CONFIG_BATTERY_SBS=m
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
CONFIG_BATTERY_BQ27XXX=m
CONFIG_BATTERY_BQ27XXX_I2C=m
CONFIG_BATTERY_BQ27XXX_HDQ=m
# CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM is not set
CONFIG_BATTERY_DA9150=m
CONFIG_CHARGER_AXP20X=m
CONFIG_BATTERY_AXP20X=m
CONFIG_AXP20X_POWER=m
CONFIG_AXP288_CHARGER=m
# CONFIG_AXP288_FUEL_GAUGE is not set
CONFIG_BATTERY_MAX17040=m
# CONFIG_BATTERY_MAX17042 is not set
CONFIG_BATTERY_MAX1721X=m
# CONFIG_CHARGER_ISP1704 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
CONFIG_CHARGER_GPIO=m
# CONFIG_CHARGER_MANAGER is not set
CONFIG_CHARGER_LTC3651=m
CONFIG_CHARGER_MAX14577=m
# CONFIG_CHARGER_MAX77693 is not set
# CONFIG_CHARGER_BQ2415X is not set
CONFIG_CHARGER_BQ24190=m
CONFIG_CHARGER_BQ24257=m
# CONFIG_CHARGER_BQ24735 is not set
CONFIG_CHARGER_BQ25890=m
# CONFIG_CHARGER_SMB347 is not set
CONFIG_BATTERY_GAUGE_LTC2941=m
CONFIG_BATTERY_RT5033=m
# CONFIG_CHARGER_RT9455 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_AD7414 is not set
CONFIG_SENSORS_AD7418=m
# CONFIG_SENSORS_ADM1021 is not set
CONFIG_SENSORS_ADM1025=m
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
CONFIG_SENSORS_ADT7X10=m
CONFIG_SENSORS_ADT7410=m
# CONFIG_SENSORS_ADT7411 is not set
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
CONFIG_SENSORS_APPLESMC=m
CONFIG_SENSORS_ASB100=m
# CONFIG_SENSORS_ASPEED is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_DELL_SMM=y
# CONFIG_SENSORS_I5K_AMB is not set
CONFIG_SENSORS_F71805F=y
# CONFIG_SENSORS_F71882FG is not set
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_MC13783_ADC=m
CONFIG_SENSORS_FSCHMD=m
CONFIG_SENSORS_GL518SM=m
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
CONFIG_SENSORS_G762=m
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_IBMAEM is not set
# CONFIG_SENSORS_IBMPEX is not set
CONFIG_SENSORS_IIO_HWMON=y
# CONFIG_SENSORS_I5500 is not set
# CONFIG_SENSORS_CORETEMP is not set
CONFIG_SENSORS_IT87=y
# CONFIG_SENSORS_JC42 is not set
CONFIG_SENSORS_POWR1220=m
CONFIG_SENSORS_LINEAGE=m
CONFIG_SENSORS_LTC2945=m
# CONFIG_SENSORS_LTC2990 is not set
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
CONFIG_SENSORS_LTC4222=m
CONFIG_SENSORS_LTC4245=m
CONFIG_SENSORS_LTC4260=m
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
CONFIG_SENSORS_MAX6621=m
# CONFIG_SENSORS_MAX6639 is not set
CONFIG_SENSORS_MAX6642=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_MAX6697=m
# CONFIG_SENSORS_MAX31790 is not set
CONFIG_SENSORS_MCP3021=m
# CONFIG_SENSORS_MLXREG_FAN is not set
CONFIG_SENSORS_TC654=m
CONFIG_SENSORS_MENF21BMC_HWMON=m
# CONFIG_SENSORS_LM63 is not set
CONFIG_SENSORS_LM73=m
# CONFIG_SENSORS_LM75 is not set
CONFIG_SENSORS_LM77=m
# CONFIG_SENSORS_LM78 is not set
CONFIG_SENSORS_LM80=m
# CONFIG_SENSORS_LM83 is not set
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
# CONFIG_SENSORS_LM90 is not set
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LM95234=m
# CONFIG_SENSORS_LM95241 is not set
CONFIG_SENSORS_LM95245=m
CONFIG_SENSORS_PC87360=y
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_NTC_THERMISTOR=m
CONFIG_SENSORS_NCT6683=y
CONFIG_SENSORS_NCT6775=y
CONFIG_SENSORS_NCT7802=m
CONFIG_SENSORS_NCT7904=m
CONFIG_SENSORS_NPCM7XX=y
CONFIG_SENSORS_PCF8591=m
# CONFIG_PMBUS is not set
CONFIG_SENSORS_SHT15=y
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x is not set
CONFIG_SENSORS_SHTC1=m
# CONFIG_SENSORS_SIS5595 is not set
CONFIG_SENSORS_DME1737=m
# CONFIG_SENSORS_EMC1403 is not set
CONFIG_SENSORS_EMC2103=m
# CONFIG_SENSORS_EMC6W201 is not set
CONFIG_SENSORS_SMSC47M1=y
CONFIG_SENSORS_SMSC47M192=m
# CONFIG_SENSORS_SMSC47B397 is not set
CONFIG_SENSORS_STTS751=m
CONFIG_SENSORS_SMM665=m
CONFIG_SENSORS_ADC128D818=m
CONFIG_SENSORS_ADS1015=m
# CONFIG_SENSORS_ADS7828 is not set
CONFIG_SENSORS_AMC6821=m
CONFIG_SENSORS_INA209=m
CONFIG_SENSORS_INA2XX=m
# CONFIG_SENSORS_INA3221 is not set
CONFIG_SENSORS_TC74=m
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
CONFIG_SENSORS_TMP103=m
# CONFIG_SENSORS_TMP108 is not set
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
CONFIG_SENSORS_VIA_CPUTEMP=m
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=y
# CONFIG_SENSORS_VT8231 is not set
CONFIG_SENSORS_W83773G=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
# CONFIG_SENSORS_W83793 is not set
CONFIG_SENSORS_W83795=m
CONFIG_SENSORS_W83795_FANCTRL=y
# CONFIG_SENSORS_W83L785TS is not set
CONFIG_SENSORS_W83L786NG=m
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set

#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_STATISTICS=y
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
# CONFIG_THERMAL_HWMON is not set
CONFIG_THERMAL_WRITABLE_TRIPS=y
# CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE is not set
CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE=y
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
# CONFIG_THERMAL_GOV_STEP_WISE is not set
# CONFIG_THERMAL_GOV_BANG_BANG is not set
# CONFIG_THERMAL_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_POWER_ALLOCATOR is not set
# CONFIG_CLOCK_THERMAL is not set
# CONFIG_DEVFREQ_THERMAL is not set
# CONFIG_THERMAL_EMULATION is not set
CONFIG_INTEL_POWERCLAMP=y
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# CONFIG_INTEL_PCH_THERMAL is not set
CONFIG_GENERIC_ADC_THERMAL=m
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
CONFIG_BCMA=y
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_PCI=y
CONFIG_BCMA_HOST_SOC=y
CONFIG_BCMA_DRIVER_PCI=y
CONFIG_BCMA_SFLASH=y
# CONFIG_BCMA_DRIVER_GMAC_CMN is not set
# CONFIG_BCMA_DRIVER_GPIO is not set
CONFIG_BCMA_DEBUG=y

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
CONFIG_MFD_BCM590XX=m
CONFIG_MFD_BD9571MWV=m
CONFIG_MFD_AXP20X=m
CONFIG_MFD_AXP20X_I2C=m
# CONFIG_MFD_CROS_EC is not set
CONFIG_MFD_MADERA=m
CONFIG_MFD_MADERA_I2C=m
# CONFIG_MFD_CS47L35 is not set
CONFIG_MFD_CS47L85=y
CONFIG_MFD_CS47L90=y
CONFIG_MFD_DA9062=m
# CONFIG_MFD_DA9063 is not set
CONFIG_MFD_DA9150=m
# CONFIG_MFD_DLN2 is not set
CONFIG_MFD_MC13XXX=m
CONFIG_MFD_MC13XXX_I2C=m
CONFIG_HTC_PASIC3=y
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_INTEL_SOC_PMIC_CHTDC_TI is not set
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
# CONFIG_MFD_INTEL_LPSS_PCI is not set
# CONFIG_MFD_JANZ_CMODIO is not set
CONFIG_MFD_KEMPLD=y
# CONFIG_MFD_88PM800 is not set
CONFIG_MFD_88PM805=m
CONFIG_MFD_MAX14577=m
CONFIG_MFD_MAX77693=m
CONFIG_MFD_MAX8907=m
# CONFIG_MFD_MT6397 is not set
CONFIG_MFD_MENF21BMC=m
CONFIG_MFD_VIPERBOARD=m
CONFIG_MFD_RETU=m
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
CONFIG_MFD_RT5033=m
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=m
CONFIG_MFD_SM501_GPIO=y
CONFIG_MFD_SKY81452=m
CONFIG_ABX500_CORE=y
CONFIG_MFD_SYSCON=y
CONFIG_MFD_TI_AM335X_TSCADC=y
# CONFIG_MFD_LP3943 is not set
CONFIG_MFD_TI_LMU=m
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
CONFIG_TPS6507X=m
CONFIG_MFD_TPS65086=m
CONFIG_MFD_TI_LP873X=m
CONFIG_MFD_TPS65912=m
CONFIG_MFD_TPS65912_I2C=m
CONFIG_MFD_WL1273_CORE=m
CONFIG_MFD_LM3533=m
# CONFIG_MFD_VX855 is not set
CONFIG_MFD_ARIZONA=y
CONFIG_MFD_ARIZONA_I2C=m
CONFIG_MFD_CS47L24=y
# CONFIG_MFD_WM5102 is not set
# CONFIG_MFD_WM5110 is not set
# CONFIG_MFD_WM8997 is not set
CONFIG_MFD_WM8998=y
# CONFIG_MFD_WM8994 is not set
CONFIG_REGULATOR=y
CONFIG_REGULATOR_DEBUG=y
# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
CONFIG_REGULATOR_VIRTUAL_CONSUMER=y
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_88PG86X is not set
CONFIG_REGULATOR_ACT8865=m
# CONFIG_REGULATOR_AD5398 is not set
CONFIG_REGULATOR_ANATOP=y
CONFIG_REGULATOR_ARIZONA_LDO1=m
CONFIG_REGULATOR_ARIZONA_MICSUPP=m
CONFIG_REGULATOR_AXP20X=m
# CONFIG_REGULATOR_BCM590XX is not set
CONFIG_REGULATOR_BD9571MWV=m
CONFIG_REGULATOR_DA9062=m
CONFIG_REGULATOR_DA9210=m
CONFIG_REGULATOR_DA9211=m
CONFIG_REGULATOR_FAN53555=m
CONFIG_REGULATOR_GPIO=y
# CONFIG_REGULATOR_ISL9305 is not set
CONFIG_REGULATOR_ISL6271A=m
# CONFIG_REGULATOR_LM363X is not set
CONFIG_REGULATOR_LP3971=m
CONFIG_REGULATOR_LP3972=m
CONFIG_REGULATOR_LP872X=m
# CONFIG_REGULATOR_LP8755 is not set
CONFIG_REGULATOR_LTC3589=m
CONFIG_REGULATOR_LTC3676=m
CONFIG_REGULATOR_MAX14577=m
# CONFIG_REGULATOR_MAX1586 is not set
CONFIG_REGULATOR_MAX8649=m
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8907 is not set
CONFIG_REGULATOR_MAX8952=m
CONFIG_REGULATOR_MAX77693=m
# CONFIG_REGULATOR_MC13783 is not set
# CONFIG_REGULATOR_MC13892 is not set
# CONFIG_REGULATOR_MT6311 is not set
# CONFIG_REGULATOR_PFUZE100 is not set
CONFIG_REGULATOR_PV88060=m
# CONFIG_REGULATOR_PV88080 is not set
CONFIG_REGULATOR_PV88090=m
CONFIG_REGULATOR_PWM=y
CONFIG_REGULATOR_RT5033=m
# CONFIG_REGULATOR_SKY81452 is not set
CONFIG_REGULATOR_TPS51632=m
CONFIG_REGULATOR_TPS62360=m
# CONFIG_REGULATOR_TPS65023 is not set
CONFIG_REGULATOR_TPS6507X=m
CONFIG_REGULATOR_TPS65086=m
CONFIG_REGULATOR_TPS65132=m
# CONFIG_REGULATOR_TPS65912 is not set
CONFIG_CEC_CORE=m
CONFIG_CEC_NOTIFIER=y
CONFIG_RC_CORE=m
CONFIG_RC_MAP=m
# CONFIG_LIRC is not set
CONFIG_RC_DECODERS=y
# CONFIG_IR_NEC_DECODER is not set
CONFIG_IR_RC5_DECODER=m
CONFIG_IR_RC6_DECODER=m
# CONFIG_IR_JVC_DECODER is not set
# CONFIG_IR_SONY_DECODER is not set
CONFIG_IR_SANYO_DECODER=m
CONFIG_IR_SHARP_DECODER=m
# CONFIG_IR_MCE_KBD_DECODER is not set
CONFIG_IR_XMP_DECODER=m
# CONFIG_IR_IMON_DECODER is not set
# CONFIG_RC_DEVICES is not set
CONFIG_MEDIA_SUPPORT=y

#
# Multimedia core support
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
CONFIG_MEDIA_SDR_SUPPORT=y
CONFIG_MEDIA_CEC_SUPPORT=y
CONFIG_MEDIA_CEC_RC=y
CONFIG_MEDIA_CONTROLLER=y
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEO_ADV_DEBUG=y
CONFIG_VIDEO_FIXED_MINOR_RANGES=y
# CONFIG_VIDEO_PCI_SKELETON is not set
CONFIG_VIDEO_TUNER=m
CONFIG_V4L2_MEM2MEM_DEV=m
CONFIG_V4L2_FLASH_LED_CLASS=m
CONFIG_V4L2_FWNODE=m

#
# Media drivers
#
CONFIG_MEDIA_USB_SUPPORT=y

#
# Webcam devices
#
CONFIG_USB_VIDEO_CLASS=m
# CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV is not set
CONFIG_USB_GSPCA=m
CONFIG_USB_M5602=m
CONFIG_USB_STV06XX=m
# CONFIG_USB_GL860 is not set
CONFIG_USB_GSPCA_BENQ=m
CONFIG_USB_GSPCA_CONEX=m
CONFIG_USB_GSPCA_CPIA1=m
# CONFIG_USB_GSPCA_DTCS033 is not set
CONFIG_USB_GSPCA_ETOMS=m
CONFIG_USB_GSPCA_FINEPIX=m
CONFIG_USB_GSPCA_JEILINJ=m
CONFIG_USB_GSPCA_JL2005BCD=m
CONFIG_USB_GSPCA_KINECT=m
# CONFIG_USB_GSPCA_KONICA is not set
# CONFIG_USB_GSPCA_MARS is not set
# CONFIG_USB_GSPCA_MR97310A is not set
CONFIG_USB_GSPCA_NW80X=m
CONFIG_USB_GSPCA_OV519=m
CONFIG_USB_GSPCA_OV534=m
CONFIG_USB_GSPCA_OV534_9=m
# CONFIG_USB_GSPCA_PAC207 is not set
# CONFIG_USB_GSPCA_PAC7302 is not set
# CONFIG_USB_GSPCA_PAC7311 is not set
# CONFIG_USB_GSPCA_SE401 is not set
CONFIG_USB_GSPCA_SN9C2028=m
CONFIG_USB_GSPCA_SN9C20X=m
CONFIG_USB_GSPCA_SONIXB=m
# CONFIG_USB_GSPCA_SONIXJ is not set
CONFIG_USB_GSPCA_SPCA500=m
CONFIG_USB_GSPCA_SPCA501=m
# CONFIG_USB_GSPCA_SPCA505 is not set
CONFIG_USB_GSPCA_SPCA506=m
# CONFIG_USB_GSPCA_SPCA508 is not set
CONFIG_USB_GSPCA_SPCA561=m
CONFIG_USB_GSPCA_SPCA1528=m
CONFIG_USB_GSPCA_SQ905=m
# CONFIG_USB_GSPCA_SQ905C is not set
CONFIG_USB_GSPCA_SQ930X=m
CONFIG_USB_GSPCA_STK014=m
CONFIG_USB_GSPCA_STK1135=m
CONFIG_USB_GSPCA_STV0680=m
CONFIG_USB_GSPCA_SUNPLUS=m
CONFIG_USB_GSPCA_T613=m
# CONFIG_USB_GSPCA_TOPRO is not set
# CONFIG_USB_GSPCA_TOUPTEK is not set
CONFIG_USB_GSPCA_TV8532=m
# CONFIG_USB_GSPCA_VC032X is not set
# CONFIG_USB_GSPCA_VICAM is not set
CONFIG_USB_GSPCA_XIRLINK_CIT=m
# CONFIG_USB_GSPCA_ZC3XX is not set
CONFIG_USB_PWC=m
CONFIG_USB_PWC_DEBUG=y
CONFIG_USB_PWC_INPUT_EVDEV=y
# CONFIG_VIDEO_CPIA2 is not set
# CONFIG_USB_ZR364XX is not set
CONFIG_USB_STKWEBCAM=m
# CONFIG_USB_S2255 is not set
CONFIG_VIDEO_USBTV=m

#
# Webcam, TV (analog/digital) USB devices
#
CONFIG_VIDEO_EM28XX=m
CONFIG_VIDEO_EM28XX_V4L2=m
CONFIG_VIDEO_EM28XX_ALSA=m
# CONFIG_VIDEO_EM28XX_RC is not set

#
# Software defined radio USB devices
#
# CONFIG_USB_AIRSPY is not set
# CONFIG_USB_HACKRF is not set

#
# USB HDMI CEC adapters
#
# CONFIG_MEDIA_PCI_SUPPORT is not set
# CONFIG_V4L_PLATFORM_DRIVERS is not set
CONFIG_V4L_MEM2MEM_DRIVERS=y
CONFIG_VIDEO_MEM2MEM_DEINTERLACE=m
# CONFIG_VIDEO_SH_VEU is not set
CONFIG_V4L_TEST_DRIVERS=y
# CONFIG_VIDEO_VIMC is not set
# CONFIG_VIDEO_VIVID is not set
# CONFIG_VIDEO_VIM2M is not set
CONFIG_VIDEO_VICODEC=m
CONFIG_CEC_PLATFORM_DRIVERS=y
CONFIG_SDR_PLATFORM_DRIVERS=y

#
# Supported MMC/SDIO adapters
#
CONFIG_VIDEO_TVEEPROM=m
CONFIG_CYPRESS_FIRMWARE=m
CONFIG_VIDEOBUF2_CORE=m
CONFIG_VIDEOBUF2_V4L2=m
CONFIG_VIDEOBUF2_MEMOPS=m
CONFIG_VIDEOBUF2_DMA_CONTIG=m
CONFIG_VIDEOBUF2_VMALLOC=m
CONFIG_VIDEOBUF2_DMA_SG=m

#
# Media ancillary drivers (tuners, sensors, i2c, spi, frontends)
#
# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set
CONFIG_VIDEO_IR_I2C=m

#
# I2C Encoders, decoders, sensors and other helper chips
#

#
# Audio decoders, processors and mixers
#
# CONFIG_VIDEO_TVAUDIO is not set
# CONFIG_VIDEO_TDA7432 is not set
CONFIG_VIDEO_TDA9840=m
# CONFIG_VIDEO_TDA1997X is not set
CONFIG_VIDEO_TEA6415C=m
CONFIG_VIDEO_TEA6420=m
CONFIG_VIDEO_MSP3400=m
CONFIG_VIDEO_CS3308=m
CONFIG_VIDEO_CS5345=m
# CONFIG_VIDEO_CS53L32A is not set
# CONFIG_VIDEO_TLV320AIC23B is not set
CONFIG_VIDEO_UDA1342=m
CONFIG_VIDEO_WM8775=m
CONFIG_VIDEO_WM8739=m
CONFIG_VIDEO_VP27SMPX=m
CONFIG_VIDEO_SONY_BTF_MPX=m

#
# RDS decoders
#
# CONFIG_VIDEO_SAA6588 is not set

#
# Video decoders
#
# CONFIG_VIDEO_ADV7180 is not set
CONFIG_VIDEO_ADV7183=m
CONFIG_VIDEO_ADV7604=m
CONFIG_VIDEO_ADV7604_CEC=y
CONFIG_VIDEO_ADV7842=m
CONFIG_VIDEO_ADV7842_CEC=y
# CONFIG_VIDEO_BT819 is not set
# CONFIG_VIDEO_BT856 is not set
# CONFIG_VIDEO_BT866 is not set
# CONFIG_VIDEO_KS0127 is not set
CONFIG_VIDEO_ML86V7667=m
CONFIG_VIDEO_AD5820=m
CONFIG_VIDEO_AK7375=m
CONFIG_VIDEO_DW9714=m
CONFIG_VIDEO_DW9807_VCM=m
# CONFIG_VIDEO_SAA7110 is not set
CONFIG_VIDEO_SAA711X=m
CONFIG_VIDEO_TC358743=m
# CONFIG_VIDEO_TC358743_CEC is not set
CONFIG_VIDEO_TVP514X=m
# CONFIG_VIDEO_TVP5150 is not set
CONFIG_VIDEO_TVP7002=m
CONFIG_VIDEO_TW2804=m
# CONFIG_VIDEO_TW9903 is not set
# CONFIG_VIDEO_TW9906 is not set
CONFIG_VIDEO_TW9910=m
CONFIG_VIDEO_VPX3220=m

#
# Video and audio decoders
#
# CONFIG_VIDEO_SAA717X is not set
CONFIG_VIDEO_CX25840=m

#
# Video encoders
#
CONFIG_VIDEO_SAA7127=m
# CONFIG_VIDEO_SAA7185 is not set
CONFIG_VIDEO_ADV7170=m
# CONFIG_VIDEO_ADV7175 is not set
# CONFIG_VIDEO_ADV7343 is not set
CONFIG_VIDEO_ADV7393=m
# CONFIG_VIDEO_ADV7511 is not set
CONFIG_VIDEO_AD9389B=m
CONFIG_VIDEO_AK881X=m
CONFIG_VIDEO_THS8200=m

#
# Camera sensor devices
#
CONFIG_VIDEO_APTINA_PLL=m
CONFIG_VIDEO_IMX258=m
# CONFIG_VIDEO_IMX274 is not set
CONFIG_VIDEO_OV2640=m
CONFIG_VIDEO_OV2659=m
# CONFIG_VIDEO_OV2680 is not set
# CONFIG_VIDEO_OV2685 is not set
# CONFIG_VIDEO_OV5647 is not set
CONFIG_VIDEO_OV6650=m
# CONFIG_VIDEO_OV5670 is not set
CONFIG_VIDEO_OV5695=m
CONFIG_VIDEO_OV7251=m
CONFIG_VIDEO_OV772X=m
# CONFIG_VIDEO_OV7640 is not set
CONFIG_VIDEO_OV7670=m
CONFIG_VIDEO_OV7740=m
CONFIG_VIDEO_OV9650=m
CONFIG_VIDEO_OV13858=m
CONFIG_VIDEO_VS6624=m
# CONFIG_VIDEO_MT9M032 is not set
CONFIG_VIDEO_MT9M111=m
CONFIG_VIDEO_MT9P031=m
CONFIG_VIDEO_MT9T001=m
CONFIG_VIDEO_MT9T112=m
CONFIG_VIDEO_MT9V011=m
CONFIG_VIDEO_MT9V032=m
CONFIG_VIDEO_MT9V111=m
# CONFIG_VIDEO_SR030PC30 is not set
# CONFIG_VIDEO_NOON010PC30 is not set
CONFIG_VIDEO_M5MOLS=m
CONFIG_VIDEO_RJ54N1=m
CONFIG_VIDEO_S5K6AA=m
CONFIG_VIDEO_S5K6A3=m
CONFIG_VIDEO_S5K4ECGX=m
# CONFIG_VIDEO_S5K5BAF is not set
# CONFIG_VIDEO_SMIAPP is not set
# CONFIG_VIDEO_ET8EK8 is not set

#
# Flash devices
#
# CONFIG_VIDEO_ADP1653 is not set
# CONFIG_VIDEO_LM3560 is not set
CONFIG_VIDEO_LM3646=m

#
# Video improvement chips
#
CONFIG_VIDEO_UPD64031A=m
CONFIG_VIDEO_UPD64083=m

#
# Audio/Video compression chips
#
# CONFIG_VIDEO_SAA6752HS is not set

#
# SDR tuner chips
#
# CONFIG_SDR_MAX2175 is not set

#
# Miscellaneous helper chips
#
CONFIG_VIDEO_THS7303=m
CONFIG_VIDEO_M52790=m
# CONFIG_VIDEO_I2C is not set

#
# Sensors used on soc_camera driver
#

#
# SPI helper chips
#
CONFIG_MEDIA_TUNER=m

#
# Customize TV tuners
#
CONFIG_MEDIA_TUNER_SIMPLE=m
CONFIG_MEDIA_TUNER_TDA18250=m
CONFIG_MEDIA_TUNER_TDA8290=m
CONFIG_MEDIA_TUNER_TDA827X=m
CONFIG_MEDIA_TUNER_TDA18271=m
CONFIG_MEDIA_TUNER_TDA9887=m
# CONFIG_MEDIA_TUNER_TEA5761 is not set
# CONFIG_MEDIA_TUNER_TEA5767 is not set
CONFIG_MEDIA_TUNER_MT20XX=m
CONFIG_MEDIA_TUNER_MT2060=m
CONFIG_MEDIA_TUNER_MT2063=m
# CONFIG_MEDIA_TUNER_MT2266 is not set
CONFIG_MEDIA_TUNER_MT2131=m
# CONFIG_MEDIA_TUNER_QT1010 is not set
# CONFIG_MEDIA_TUNER_XC2028 is not set
# CONFIG_MEDIA_TUNER_XC5000 is not set
CONFIG_MEDIA_TUNER_XC4000=m
# CONFIG_MEDIA_TUNER_MXL5005S is not set
CONFIG_MEDIA_TUNER_MXL5007T=m
# CONFIG_MEDIA_TUNER_MC44S803 is not set
CONFIG_MEDIA_TUNER_MAX2165=m
CONFIG_MEDIA_TUNER_TDA18218=m
CONFIG_MEDIA_TUNER_FC0011=m
# CONFIG_MEDIA_TUNER_FC0012 is not set
CONFIG_MEDIA_TUNER_FC0013=m
CONFIG_MEDIA_TUNER_TDA18212=m
CONFIG_MEDIA_TUNER_E4000=m
CONFIG_MEDIA_TUNER_FC2580=m
CONFIG_MEDIA_TUNER_M88RS6000T=m
# CONFIG_MEDIA_TUNER_TUA9001 is not set
CONFIG_MEDIA_TUNER_SI2157=m
# CONFIG_MEDIA_TUNER_IT913X is not set
CONFIG_MEDIA_TUNER_R820T=m
# CONFIG_MEDIA_TUNER_MXL301RF is not set
# CONFIG_MEDIA_TUNER_QM1D1C0042 is not set
CONFIG_MEDIA_TUNER_QM1D1B0004=m

#
# Customise DVB Frontends
#

#
# Tools to develop new frontends
#

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=m
# CONFIG_DRM_DP_AUX_CHARDEV is not set
# CONFIG_DRM_DEBUG_SELFTEST is not set
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
# CONFIG_DRM_DP_CEC is not set
CONFIG_DRM_TTM=m
CONFIG_DRM_VM=y

#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
# CONFIG_DRM_I2C_SIL164 is not set
CONFIG_DRM_I2C_NXP_TDA998X=m
CONFIG_DRM_I2C_NXP_TDA9950=m
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set

#
# ACP (Audio CoProcessor) Configuration
#

#
# AMD Library routines
#
# CONFIG_DRM_NOUVEAU is not set
# CONFIG_DRM_I915 is not set
CONFIG_DRM_VGEM=m
CONFIG_DRM_VKMS=m
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
CONFIG_DRM_UDL=m
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
CONFIG_DRM_ANALOGIX_ANX78XX=m
# CONFIG_DRM_HISI_HIBMC is not set
# CONFIG_DRM_TINYDRM is not set
CONFIG_DRM_LEGACY=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=m

#
# Frame buffer Devices
#
CONFIG_FB=m
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB_CFB_FILLRECT=m
CONFIG_FB_CFB_COPYAREA=m
CONFIG_FB_CFB_IMAGEBLIT=m
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_ARC=m
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
CONFIG_FB_OPENCORES=m
CONFIG_FB_S1D13XXX=m
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
CONFIG_FB_SM501=m
CONFIG_FB_SMSCUFX=m
CONFIG_FB_UDL=m
CONFIG_FB_IBM_GXT4500=m
CONFIG_FB_VIRTUAL=m
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
CONFIG_FB_BROADSHEET=m
# CONFIG_FB_SM712 is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
CONFIG_HDMI=y
# CONFIG_LOGO is not set
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_PCM_ELD=y
CONFIG_SND_PCM_IEC958=y
CONFIG_SND_DMAENGINE_PCM=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
# CONFIG_SND_OSSEMUL is not set
CONFIG_SND_PCM_TIMER=y
CONFIG_SND_HRTIMER=m
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_DMA_SGBUF=y
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ASIHPI is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SE6X is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set

#
# HD-Audio
#
# CONFIG_SND_HDA_INTEL is not set
CONFIG_SND_HDA_PREALLOC_SIZE=64
# CONFIG_SND_USB is not set
CONFIG_SND_SOC=m
CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
# CONFIG_SND_SOC_AMD_ACP is not set
CONFIG_SND_ATMEL_SOC=m
# CONFIG_SND_DESIGNWARE_I2S is not set

#
# SoC Audio for Freescale CPUs
#

#
# Common SoC Audio options for Freescale CPUs:
#
CONFIG_SND_SOC_FSL_ASRC=m
CONFIG_SND_SOC_FSL_SAI=m
CONFIG_SND_SOC_FSL_SSI=m
CONFIG_SND_SOC_FSL_SPDIF=m
# CONFIG_SND_SOC_FSL_ESAI is not set
# CONFIG_SND_SOC_IMX_AUDMUX is not set
# CONFIG_SND_I2S_HI6210_I2S is not set
# CONFIG_SND_SOC_IMG is not set
# CONFIG_SND_SOC_INTEL_SST_TOPLEVEL is not set

#
# STMicroelectronics STM32 SOC audio support
#
# CONFIG_SND_SOC_XTFPGA_I2S is not set
# CONFIG_ZX_TDM is not set
CONFIG_SND_SOC_I2C_AND_SPI=m

#
# CODEC drivers
#
# CONFIG_SND_SOC_AC97_CODEC is not set
CONFIG_SND_SOC_ADAU_UTILS=m
# CONFIG_SND_SOC_ADAU1701 is not set
CONFIG_SND_SOC_ADAU17X1=m
CONFIG_SND_SOC_ADAU1761=m
CONFIG_SND_SOC_ADAU1761_I2C=m
# CONFIG_SND_SOC_ADAU7002 is not set
CONFIG_SND_SOC_AK4458=m
CONFIG_SND_SOC_AK4554=m
# CONFIG_SND_SOC_AK4613 is not set
# CONFIG_SND_SOC_AK4642 is not set
CONFIG_SND_SOC_AK5386=m
CONFIG_SND_SOC_AK5558=m
CONFIG_SND_SOC_ALC5623=m
CONFIG_SND_SOC_BD28623=m
CONFIG_SND_SOC_BT_SCO=m
CONFIG_SND_SOC_CS35L32=m
# CONFIG_SND_SOC_CS35L33 is not set
# CONFIG_SND_SOC_CS35L34 is not set
# CONFIG_SND_SOC_CS35L35 is not set
CONFIG_SND_SOC_CS42L42=m
CONFIG_SND_SOC_CS42L51=m
CONFIG_SND_SOC_CS42L51_I2C=m
# CONFIG_SND_SOC_CS42L52 is not set
CONFIG_SND_SOC_CS42L56=m
# CONFIG_SND_SOC_CS42L73 is not set
CONFIG_SND_SOC_CS4265=m
# CONFIG_SND_SOC_CS4270 is not set
# CONFIG_SND_SOC_CS4271_I2C is not set
CONFIG_SND_SOC_CS42XX8=m
CONFIG_SND_SOC_CS42XX8_I2C=m
# CONFIG_SND_SOC_CS43130 is not set
CONFIG_SND_SOC_CS4349=m
CONFIG_SND_SOC_CS53L30=m
CONFIG_SND_SOC_HDMI_CODEC=m
CONFIG_SND_SOC_ES7134=m
# CONFIG_SND_SOC_ES7241 is not set
CONFIG_SND_SOC_ES8316=m
# CONFIG_SND_SOC_ES8328_I2C is not set
# CONFIG_SND_SOC_GTM601 is not set
CONFIG_SND_SOC_INNO_RK3036=m
CONFIG_SND_SOC_MAX98504=m
CONFIG_SND_SOC_MAX9867=m
CONFIG_SND_SOC_MAX98927=m
CONFIG_SND_SOC_MAX98373=m
# CONFIG_SND_SOC_MAX9860 is not set
CONFIG_SND_SOC_MSM8916_WCD_DIGITAL=m
CONFIG_SND_SOC_PCM1681=m
# CONFIG_SND_SOC_PCM1789_I2C is not set
CONFIG_SND_SOC_PCM179X=m
CONFIG_SND_SOC_PCM179X_I2C=m
# CONFIG_SND_SOC_PCM186X_I2C is not set
CONFIG_SND_SOC_PCM3168A=m
CONFIG_SND_SOC_PCM3168A_I2C=m
# CONFIG_SND_SOC_PCM512x_I2C is not set
CONFIG_SND_SOC_RL6231=m
CONFIG_SND_SOC_RT5616=m
# CONFIG_SND_SOC_RT5631 is not set
# CONFIG_SND_SOC_SGTL5000 is not set
CONFIG_SND_SOC_SIGMADSP=m
CONFIG_SND_SOC_SIGMADSP_REGMAP=m
# CONFIG_SND_SOC_SIMPLE_AMPLIFIER is not set
CONFIG_SND_SOC_SIRF_AUDIO_CODEC=m
CONFIG_SND_SOC_SPDIF=m
CONFIG_SND_SOC_SSM2305=m
CONFIG_SND_SOC_SSM2602=m
CONFIG_SND_SOC_SSM2602_I2C=m
# CONFIG_SND_SOC_SSM4567 is not set
CONFIG_SND_SOC_STA32X=m
CONFIG_SND_SOC_STA350=m
CONFIG_SND_SOC_STI_SAS=m
CONFIG_SND_SOC_TAS2552=m
# CONFIG_SND_SOC_TAS5086 is not set
CONFIG_SND_SOC_TAS571X=m
# CONFIG_SND_SOC_TAS5720 is not set
CONFIG_SND_SOC_TAS6424=m
CONFIG_SND_SOC_TDA7419=m
CONFIG_SND_SOC_TFA9879=m
CONFIG_SND_SOC_TLV320AIC23=m
CONFIG_SND_SOC_TLV320AIC23_I2C=m
CONFIG_SND_SOC_TLV320AIC31XX=m
# CONFIG_SND_SOC_TLV320AIC32X4_I2C is not set
CONFIG_SND_SOC_TLV320AIC3X=m
# CONFIG_SND_SOC_TS3A227E is not set
# CONFIG_SND_SOC_TSCS42XX is not set
CONFIG_SND_SOC_TSCS454=m
# CONFIG_SND_SOC_WM8510 is not set
CONFIG_SND_SOC_WM8523=m
CONFIG_SND_SOC_WM8524=m
CONFIG_SND_SOC_WM8580=m
CONFIG_SND_SOC_WM8711=m
CONFIG_SND_SOC_WM8728=m
# CONFIG_SND_SOC_WM8731 is not set
# CONFIG_SND_SOC_WM8737 is not set
CONFIG_SND_SOC_WM8741=m
# CONFIG_SND_SOC_WM8750 is not set
CONFIG_SND_SOC_WM8753=m
CONFIG_SND_SOC_WM8776=m
CONFIG_SND_SOC_WM8782=m
CONFIG_SND_SOC_WM8804=m
CONFIG_SND_SOC_WM8804_I2C=m
CONFIG_SND_SOC_WM8903=m
CONFIG_SND_SOC_WM8960=m
CONFIG_SND_SOC_WM8962=m
CONFIG_SND_SOC_WM8974=m
CONFIG_SND_SOC_WM8978=m
CONFIG_SND_SOC_WM8985=m
# CONFIG_SND_SOC_ZX_AUD96P22 is not set
# CONFIG_SND_SOC_MAX9759 is not set
CONFIG_SND_SOC_MT6351=m
# CONFIG_SND_SOC_NAU8540 is not set
# CONFIG_SND_SOC_NAU8810 is not set
# CONFIG_SND_SOC_NAU8824 is not set
CONFIG_SND_SOC_TPA6130A2=m
CONFIG_SND_SIMPLE_CARD_UTILS=m
CONFIG_SND_SIMPLE_CARD=m
CONFIG_SND_X86=y

#
# HID support
#
CONFIG_HID=m
CONFIG_HID_BATTERY_STRENGTH=y
# CONFIG_HIDRAW is not set
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACCUTOUCH is not set
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
# CONFIG_HID_APPLE is not set
CONFIG_HID_APPLEIR=m
# CONFIG_HID_ASUS is not set
CONFIG_HID_AUREAL=m
# CONFIG_HID_BELKIN is not set
CONFIG_HID_BETOP_FF=m
# CONFIG_HID_CHERRY is not set
CONFIG_HID_CHICONY=m
# CONFIG_HID_CORSAIR is not set
CONFIG_HID_COUGAR=m
# CONFIG_HID_PRODIKEYS is not set
# CONFIG_HID_CMEDIA is not set
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
CONFIG_DRAGONRISE_FF=y
CONFIG_HID_EMS_FF=m
# CONFIG_HID_ELAN is not set
# CONFIG_HID_ELECOM is not set
CONFIG_HID_ELO=m
CONFIG_HID_EZKEY=m
# CONFIG_HID_GEMBIRD is not set
CONFIG_HID_GFRM=m
CONFIG_HID_HOLTEK=m
# CONFIG_HOLTEK_FF is not set
# CONFIG_HID_GOOGLE_HAMMER is not set
CONFIG_HID_GT683R=m
CONFIG_HID_KEYTOUCH=m
CONFIG_HID_KYE=m
CONFIG_HID_UCLOGIC=m
CONFIG_HID_WALTOP=m
CONFIG_HID_GYRATION=m
CONFIG_HID_ICADE=m
# CONFIG_HID_ITE is not set
# CONFIG_HID_JABRA is not set
CONFIG_HID_TWINHAN=m
# CONFIG_HID_KENSINGTON is not set
CONFIG_HID_LCPOWER=m
# CONFIG_HID_LED is not set
CONFIG_HID_LENOVO=m
# CONFIG_HID_LOGITECH is not set
CONFIG_HID_MAGICMOUSE=m
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_REDRAGON is not set
# CONFIG_HID_MICROSOFT is not set
CONFIG_HID_MONTEREY=m
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTI is not set
CONFIG_HID_NTRIG=m
# CONFIG_HID_ORTEK is not set
CONFIG_HID_PANTHERLORD=m
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PENMOUNT=m
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
# CONFIG_HID_PICOLCD_LEDS is not set
CONFIG_HID_PICOLCD_CIR=y
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PRIMAX is not set
CONFIG_HID_RETRODE=m
# CONFIG_HID_ROCCAT is not set
CONFIG_HID_SAITEK=m
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
CONFIG_SONY_FF=y
# CONFIG_HID_SPEEDLINK is not set
CONFIG_HID_STEAM=m
CONFIG_HID_STEELSERIES=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_RMI=m
CONFIG_HID_GREENASIA=m
CONFIG_GREENASIA_FF=y
# CONFIG_HID_SMARTJOYPLUS is not set
CONFIG_HID_TIVO=m
CONFIG_HID_TOPSEED=m
# CONFIG_HID_THINGM is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_UDRAW_PS3 is not set
CONFIG_HID_WACOM=m
CONFIG_HID_WIIMOTE=m
CONFIG_HID_XINMO=m
CONFIG_HID_ZEROPLUS=m
# CONFIG_ZEROPLUS_FF is not set
CONFIG_HID_ZYDACRON=m
# CONFIG_HID_SENSOR_HUB is not set
CONFIG_HID_ALPS=m

#
# USB HID support
#
CONFIG_USB_HID=m
CONFIG_HID_PID=y
# CONFIG_USB_HIDDEV is not set

#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
CONFIG_USB_MOUSE=m

#
# I2C HID support
#
CONFIG_I2C_HID=m

#
# Intel ISH HID support
#
# CONFIG_INTEL_ISH_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=m
CONFIG_USB_PCI=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
# CONFIG_USB_DEFAULT_PERSIST is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
CONFIG_USB_OTG_FSM=m
CONFIG_USB_LEDS_TRIGGER_USBPORT=m
CONFIG_USB_MON=m
CONFIG_USB_WUSB=m
CONFIG_USB_WUSB_CBAF=m
# CONFIG_USB_WUSB_CBAF_DEBUG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=m
CONFIG_USB_XHCI_HCD=m
# CONFIG_USB_XHCI_DBGCAP is not set
CONFIG_USB_XHCI_PCI=m
CONFIG_USB_XHCI_PLATFORM=m
# CONFIG_USB_EHCI_HCD is not set
CONFIG_USB_OXU210HP_HCD=m
CONFIG_USB_ISP116X_HCD=m
CONFIG_USB_FOTG210_HCD=m
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_HCD_PCI=m
CONFIG_USB_OHCI_HCD_PLATFORM=m
# CONFIG_USB_UHCI_HCD is not set
CONFIG_USB_U132_HCD=m
CONFIG_USB_SL811_HCD=m
CONFIG_USB_SL811_HCD_ISO=y
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
CONFIG_USB_HWA_HCD=m
CONFIG_USB_HCD_BCMA=m
CONFIG_USB_HCD_TEST_MODE=y

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
CONFIG_USB_WDM=m
CONFIG_USB_TMC=m

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
CONFIG_USBIP_CORE=m
# CONFIG_USBIP_VHCI_HCD is not set
CONFIG_USBIP_HOST=m
CONFIG_USBIP_VUDC=m
# CONFIG_USBIP_DEBUG is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
CONFIG_USB_DWC2=m
# CONFIG_USB_DWC2_HOST is not set

#
# Gadget/Dual-role mode requires USB Gadget support to be enabled
#
# CONFIG_USB_DWC2_PERIPHERAL is not set
CONFIG_USB_DWC2_DUAL_ROLE=y
# CONFIG_USB_DWC2_PCI is not set
# CONFIG_USB_DWC2_DEBUG is not set
# CONFIG_USB_DWC2_TRACK_MISSED_SOFS is not set
CONFIG_USB_CHIPIDEA=y
CONFIG_USB_CHIPIDEA_PCI=y
CONFIG_USB_CHIPIDEA_UDC=y
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
CONFIG_USB_ADUTUX=m
CONFIG_USB_SEVSEG=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
CONFIG_USB_CYPRESS_CY7C63=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
# CONFIG_USB_APPLEDISPLAY is not set
CONFIG_USB_LD=m
CONFIG_USB_TRANCEVIBRATOR=m
CONFIG_USB_IOWARRIOR=m
# CONFIG_USB_TEST is not set
CONFIG_USB_EHSET_TEST_FIXTURE=m
CONFIG_USB_ISIGHTFW=m
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
CONFIG_USB_HUB_USB251XB=m
CONFIG_USB_HSIC_USB3503=m
CONFIG_USB_HSIC_USB4604=m
CONFIG_USB_LINK_LAYER_TEST=m
CONFIG_USB_ATM=m
CONFIG_USB_SPEEDTOUCH=m
# CONFIG_USB_CXACRU is not set
CONFIG_USB_UEAGLEATM=m
# CONFIG_USB_XUSBATM is not set

#
# USB Physical Layer drivers
#
CONFIG_USB_PHY=y
CONFIG_NOP_USB_XCEIV=y
CONFIG_USB_GPIO_VBUS=m
CONFIG_TAHVO_USB=m
# CONFIG_TAHVO_USB_HOST_BY_DEFAULT is not set
# CONFIG_USB_ISP1301 is not set
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_DEBUG=y
# CONFIG_USB_GADGET_VERBOSE is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
CONFIG_USB_GADGET_DEBUG_FS=y
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2

#
# USB Peripheral Controller
#
CONFIG_USB_FOTG210_UDC=m
# CONFIG_USB_GR_UDC is not set
CONFIG_USB_R8A66597=y
CONFIG_USB_PXA27X=m
CONFIG_USB_MV_UDC=y
CONFIG_USB_MV_U3D=m
CONFIG_USB_M66592=m
# CONFIG_USB_BDC_UDC is not set
# CONFIG_USB_AMD5536UDC is not set
CONFIG_USB_NET2272=m
CONFIG_USB_NET2272_DMA=y
# CONFIG_USB_NET2280 is not set
# CONFIG_USB_GOKU is not set
# CONFIG_USB_EG20T is not set
CONFIG_USB_LIBCOMPOSITE=y
CONFIG_USB_U_ETHER=m
CONFIG_USB_U_AUDIO=m
CONFIG_USB_F_PHONET=m
CONFIG_USB_F_UAC1=m
CONFIG_USB_F_UAC1_LEGACY=m
CONFIG_USB_F_UAC2=m
CONFIG_USB_F_MIDI=m
CONFIG_USB_F_HID=y
CONFIG_USB_CONFIGFS=y
# CONFIG_USB_CONFIGFS_SERIAL is not set
# CONFIG_USB_CONFIGFS_ACM is not set
# CONFIG_USB_CONFIGFS_OBEX is not set
# CONFIG_USB_CONFIGFS_NCM is not set
# CONFIG_USB_CONFIGFS_ECM is not set
# CONFIG_USB_CONFIGFS_ECM_SUBSET is not set
# CONFIG_USB_CONFIGFS_RNDIS is not set
# CONFIG_USB_CONFIGFS_EEM is not set
CONFIG_USB_CONFIGFS_PHONET=y
# CONFIG_USB_CONFIGFS_F_LB_SS is not set
# CONFIG_USB_CONFIGFS_F_FS is not set
CONFIG_USB_CONFIGFS_F_UAC1=y
CONFIG_USB_CONFIGFS_F_UAC1_LEGACY=y
CONFIG_USB_CONFIGFS_F_UAC2=y
CONFIG_USB_CONFIGFS_F_MIDI=y
CONFIG_USB_CONFIGFS_F_HID=y
# CONFIG_USB_CONFIGFS_F_UVC is not set
# CONFIG_USB_CONFIGFS_F_PRINTER is not set
CONFIG_TYPEC=m
CONFIG_TYPEC_TCPM=m
CONFIG_TYPEC_TCPCI=m
CONFIG_TYPEC_RT1711H=m
# CONFIG_TYPEC_FUSB302 is not set
# CONFIG_TYPEC_UCSI is not set
CONFIG_TYPEC_TPS6598X=m

#
# USB Type-C Multiplexer/DeMultiplexer Switch support
#
CONFIG_TYPEC_MUX_PI3USB30532=m

#
# USB Type-C Alternate Mode drivers
#
CONFIG_TYPEC_DP_ALTMODE=m
# CONFIG_USB_ROLES_INTEL_XHCI is not set
# CONFIG_USB_LED_TRIG is not set
CONFIG_USB_ULPI_BUS=y
CONFIG_USB_ROLE_SWITCH=m
CONFIG_UWB=y
CONFIG_UWB_HWA=m
# CONFIG_UWB_WHCI is not set
CONFIG_UWB_I1480U=m
# CONFIG_MMC is not set
CONFIG_MEMSTICK=m
CONFIG_MEMSTICK_DEBUG=y

#
# MemoryStick drivers
#
CONFIG_MEMSTICK_UNSAFE_RESUME=y

#
# MemoryStick Host Controller Drivers
#
# CONFIG_MEMSTICK_TIFM_MS is not set
# CONFIG_MEMSTICK_JMICRON_38X is not set
# CONFIG_MEMSTICK_R592 is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_CLASS_FLASH=y
CONFIG_LEDS_BRIGHTNESS_HW_CHANGED=y

#
# LED drivers
#
CONFIG_LEDS_AS3645A=m
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3533 is not set
CONFIG_LEDS_LM3642=m
CONFIG_LEDS_LM3601X=m
# CONFIG_LEDS_PCA9532 is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEDS_LP3944 is not set
CONFIG_LEDS_LP3952=m
CONFIG_LEDS_LP55XX_COMMON=m
CONFIG_LEDS_LP5521=m
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
CONFIG_LEDS_PCA955X=m
CONFIG_LEDS_PCA955X_GPIO=y
# CONFIG_LEDS_PCA963X is not set
CONFIG_LEDS_PWM=m
# CONFIG_LEDS_REGULATOR is not set
CONFIG_LEDS_BD2802=m
CONFIG_LEDS_LT3593=m
CONFIG_LEDS_MC13783=m
# CONFIG_LEDS_TCA6507 is not set
CONFIG_LEDS_TLC591XX=m
CONFIG_LEDS_LM355x=m
CONFIG_LEDS_MENF21BMC=m

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
# CONFIG_LEDS_MLXREG is not set
CONFIG_LEDS_USER=m
# CONFIG_LEDS_NIC78BX is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
CONFIG_LEDS_TRIGGER_ACTIVITY=m
# CONFIG_LEDS_TRIGGER_GPIO is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=y
CONFIG_LEDS_TRIGGER_CAMERA=y
# CONFIG_LEDS_TRIGGER_PANIC is not set
CONFIG_LEDS_TRIGGER_NETDEV=m
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
CONFIG_SW_SYNC=y
CONFIG_AUXDISPLAY=y
CONFIG_HD44780=m
CONFIG_IMG_ASCII_LCD=y
CONFIG_CHARLCD=m
# CONFIG_UIO is not set
CONFIG_VIRT_DRIVERS=y
# CONFIG_VBOXGUEST is not set
CONFIG_VIRTIO=y
# CONFIG_VIRTIO_MENU is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACER_WIRELESS is not set
# CONFIG_ACERHDF is not set
CONFIG_DELL_SMBIOS=m
# CONFIG_DELL_SMBIOS_SMM is not set
# CONFIG_DELL_SMO8800 is not set
# CONFIG_DELL_RBTN is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_AMILO_RFKILL is not set
# CONFIG_GPD_POCKET_FAN is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_INTEL_MENLOW is not set
# CONFIG_ASUS_WIRELESS is not set
# CONFIG_ACPI_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_INTEL_CHT_INT33FE is not set
# CONFIG_INTEL_INT0002_VGPIO is not set
# CONFIG_INTEL_HID_EVENT is not set
# CONFIG_INTEL_VBTN is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_INTEL_PMC_CORE is not set
# CONFIG_IBM_RTL is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_PVPANIC is not set
# CONFIG_INTEL_PMC_IPC is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
# CONFIG_SURFACE_3_BUTTON is not set
CONFIG_INTEL_PUNIT_IPC=y
CONFIG_MLX_PLATFORM=m
# CONFIG_I2C_MULTI_INSTANTIATE is not set
CONFIG_PMC_ATOM=y
# CONFIG_CHROME_PLATFORMS is not set
CONFIG_MELLANOX_PLATFORM=y
# CONFIG_MLXREG_HOTPLUG is not set
# CONFIG_MLXREG_IO is not set
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Common Clock Framework
#
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
CONFIG_MAILBOX=y
# CONFIG_PCC is not set
# CONFIG_ALTERA_MBOX is not set
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_AMD_IOMMU is not set

#
# Remoteproc drivers
#
CONFIG_REMOTEPROC=m

#
# Rpmsg drivers
#
CONFIG_RPMSG=y
CONFIG_RPMSG_CHAR=y
CONFIG_RPMSG_QCOM_GLINK_NATIVE=y
CONFIG_RPMSG_QCOM_GLINK_RPM=y
CONFIG_RPMSG_VIRTIO=y
# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#

#
# Broadcom SoC drivers
#

#
# NXP/Freescale QorIQ SoC drivers
#

#
# i.MX SoC drivers
#

#
# Qualcomm SoC drivers
#
# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
CONFIG_XILINX_VCU=y
CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
CONFIG_DEVFREQ_GOV_PERFORMANCE=y
# CONFIG_DEVFREQ_GOV_POWERSAVE is not set
CONFIG_DEVFREQ_GOV_USERSPACE=m
CONFIG_DEVFREQ_GOV_PASSIVE=y

#
# DEVFREQ Drivers
#
CONFIG_PM_DEVFREQ_EVENT=y
CONFIG_EXTCON=y

#
# Extcon Device Drivers
#
CONFIG_EXTCON_ADC_JACK=y
CONFIG_EXTCON_ARIZONA=m
CONFIG_EXTCON_AXP288=m
CONFIG_EXTCON_GPIO=y
# CONFIG_EXTCON_INTEL_INT3496 is not set
CONFIG_EXTCON_MAX14577=m
# CONFIG_EXTCON_MAX3355 is not set
CONFIG_EXTCON_MAX77693=m
CONFIG_EXTCON_RT8973A=m
# CONFIG_EXTCON_SM5502 is not set
CONFIG_EXTCON_USB_GPIO=y
CONFIG_MEMORY=y
CONFIG_IIO=y
CONFIG_IIO_BUFFER=y
CONFIG_IIO_BUFFER_CB=m
# CONFIG_IIO_BUFFER_HW_CONSUMER is not set
CONFIG_IIO_KFIFO_BUF=y
CONFIG_IIO_TRIGGERED_BUFFER=m
CONFIG_IIO_CONFIGFS=y
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
CONFIG_IIO_SW_DEVICE=y
CONFIG_IIO_SW_TRIGGER=y

#
# Accelerometers
#
CONFIG_ADXL345=m
CONFIG_ADXL345_I2C=m
CONFIG_BMA180=m
CONFIG_BMC150_ACCEL=m
CONFIG_BMC150_ACCEL_I2C=m
# CONFIG_DA280 is not set
CONFIG_DA311=m
CONFIG_DMARD09=m
# CONFIG_DMARD10 is not set
CONFIG_IIO_CROS_EC_ACCEL_LEGACY=m
# CONFIG_IIO_ST_ACCEL_3AXIS is not set
# CONFIG_KXSD9 is not set
# CONFIG_KXCJK1013 is not set
CONFIG_MC3230=m
CONFIG_MMA7455=m
CONFIG_MMA7455_I2C=m
CONFIG_MMA7660=m
CONFIG_MMA8452=m
CONFIG_MMA9551_CORE=m
CONFIG_MMA9551=m
CONFIG_MMA9553=m
CONFIG_MXC4005=m
# CONFIG_MXC6255 is not set
# CONFIG_STK8312 is not set
CONFIG_STK8BA50=m

#
# Analog to digital converters
#
# CONFIG_AD7291 is not set
CONFIG_AD799X=m
CONFIG_AXP20X_ADC=m
CONFIG_AXP288_ADC=m
# CONFIG_CC10001_ADC is not set
# CONFIG_DA9150_GPADC is not set
CONFIG_HX711=m
CONFIG_INA2XX_ADC=m
CONFIG_LTC2471=m
# CONFIG_LTC2485 is not set
# CONFIG_LTC2497 is not set
CONFIG_MAX1363=m
# CONFIG_MAX9611 is not set
CONFIG_MCP3422=m
CONFIG_MEN_Z188_ADC=m
CONFIG_NAU7802=m
# CONFIG_STX104 is not set
# CONFIG_TI_ADC081C is not set
# CONFIG_TI_ADS1015 is not set
CONFIG_TI_AM335X_ADC=m
CONFIG_VIPERBOARD_ADC=m

#
# Analog Front Ends
#

#
# Amplifiers
#

#
# Chemical Sensors
#
# CONFIG_ATLAS_PH_SENSOR is not set
CONFIG_BME680=m
CONFIG_BME680_I2C=m
CONFIG_CCS811=m
CONFIG_IAQCORE=m
CONFIG_VZ89X=m

#
# Hid Sensor IIO Common
#
CONFIG_IIO_MS_SENSORS_I2C=m

#
# SSP Sensor Common
#
CONFIG_IIO_ST_SENSORS_I2C=m
CONFIG_IIO_ST_SENSORS_CORE=m

#
# Counters
#
# CONFIG_104_QUAD_8 is not set

#
# Digital to analog converters
#
# CONFIG_AD5064 is not set
# CONFIG_AD5380 is not set
# CONFIG_AD5446 is not set
CONFIG_AD5592R_BASE=m
CONFIG_AD5593R=m
# CONFIG_AD5696_I2C is not set
CONFIG_CIO_DAC=m
CONFIG_DS4424=m
CONFIG_M62332=m
CONFIG_MAX517=m
CONFIG_MCP4725=m
CONFIG_TI_DAC5571=m

#
# IIO dummy driver
#
CONFIG_IIO_DUMMY_EVGEN=m
CONFIG_IIO_SIMPLE_DUMMY=m
CONFIG_IIO_SIMPLE_DUMMY_EVENTS=y
# CONFIG_IIO_SIMPLE_DUMMY_BUFFER is not set

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#

#
# Phase-Locked Loop (PLL) frequency synthesizers
#

#
# Digital gyroscope sensors
#
CONFIG_BMG160=m
CONFIG_BMG160_I2C=m
# CONFIG_MPU3050_I2C is not set
CONFIG_IIO_ST_GYRO_3AXIS=m
CONFIG_IIO_ST_GYRO_I2C_3AXIS=m
CONFIG_ITG3200=m

#
# Health Sensors
#

#
# Heart Rate Monitors
#
CONFIG_AFE4404=m
# CONFIG_MAX30100 is not set
CONFIG_MAX30102=m

#
# Humidity sensors
#
# CONFIG_AM2315 is not set
CONFIG_DHT11=m
CONFIG_HDC100X=m
CONFIG_HTS221=m
CONFIG_HTS221_I2C=m
CONFIG_HTU21=m
CONFIG_SI7005=m
CONFIG_SI7020=m

#
# Inertial measurement units
#
CONFIG_BMI160=m
CONFIG_BMI160_I2C=m
CONFIG_KMX61=m
# CONFIG_INV_MPU6050_I2C is not set
CONFIG_IIO_ST_LSM6DSX=m
CONFIG_IIO_ST_LSM6DSX_I2C=m

#
# Light sensors
#
# CONFIG_ACPI_ALS is not set
# CONFIG_ADJD_S311 is not set
# CONFIG_AL3320A is not set
CONFIG_APDS9300=m
CONFIG_APDS9960=m
CONFIG_BH1750=m
# CONFIG_BH1780 is not set
CONFIG_CM32181=m
# CONFIG_CM3232 is not set
# CONFIG_CM3323 is not set
# CONFIG_CM36651 is not set
CONFIG_GP2AP020A00F=m
CONFIG_SENSORS_ISL29018=m
# CONFIG_SENSORS_ISL29028 is not set
CONFIG_ISL29125=m
CONFIG_JSA1212=m
# CONFIG_RPR0521 is not set
# CONFIG_SENSORS_LM3533 is not set
CONFIG_LTR501=m
CONFIG_LV0104CS=m
# CONFIG_MAX44000 is not set
CONFIG_OPT3001=m
# CONFIG_PA12203001 is not set
# CONFIG_SI1133 is not set
# CONFIG_SI1145 is not set
# CONFIG_STK3310 is not set
# CONFIG_ST_UVIS25 is not set
CONFIG_TCS3414=m
CONFIG_TCS3472=m
CONFIG_SENSORS_TSL2563=m
CONFIG_TSL2583=m
# CONFIG_TSL2772 is not set
# CONFIG_TSL4531 is not set
# CONFIG_US5182D is not set
CONFIG_VCNL4000=m
CONFIG_VEML6070=m
CONFIG_VL6180=m
CONFIG_ZOPT2201=m

#
# Magnetometer sensors
#
CONFIG_AK8975=m
CONFIG_AK09911=m
CONFIG_BMC150_MAGN=m
CONFIG_BMC150_MAGN_I2C=m
CONFIG_MAG3110=m
# CONFIG_MMC35240 is not set
CONFIG_IIO_ST_MAGN_3AXIS=m
CONFIG_IIO_ST_MAGN_I2C_3AXIS=m
# CONFIG_SENSORS_HMC5843_I2C is not set

#
# Multiplexers
#

#
# Inclinometer sensors
#

#
# Triggers - standalone
#
# CONFIG_IIO_HRTIMER_TRIGGER is not set
CONFIG_IIO_INTERRUPT_TRIGGER=y
# CONFIG_IIO_TIGHTLOOP_TRIGGER is not set
CONFIG_IIO_SYSFS_TRIGGER=y

#
# Digital potentiometers
#
CONFIG_AD5272=m
# CONFIG_DS1803 is not set
# CONFIG_MCP4018 is not set
CONFIG_MCP4531=m
CONFIG_TPL0102=m

#
# Digital potentiostats
#
CONFIG_LMP91000=m

#
# Pressure sensors
#
CONFIG_ABP060MG=m
CONFIG_BMP280=m
CONFIG_BMP280_I2C=m
CONFIG_HP03=m
# CONFIG_MPL115_I2C is not set
CONFIG_MPL3115=m
# CONFIG_MS5611 is not set
CONFIG_MS5637=m
CONFIG_IIO_ST_PRESS=m
CONFIG_IIO_ST_PRESS_I2C=m
# CONFIG_T5403 is not set
CONFIG_HP206C=m
CONFIG_ZPA2326=m
CONFIG_ZPA2326_I2C=m

#
# Lightning sensors
#

#
# Proximity and distance sensors
#
# CONFIG_ISL29501 is not set
# CONFIG_LIDAR_LITE_V2 is not set
# CONFIG_RFD77402 is not set
# CONFIG_SRF04 is not set
CONFIG_SX9500=m
CONFIG_SRF08=m

#
# Resolver to digital converters
#

#
# Temperature sensors
#
CONFIG_MLX90614=m
CONFIG_MLX90632=m
CONFIG_TMP006=m
CONFIG_TMP007=m
CONFIG_TSYS01=m
CONFIG_TSYS02D=m
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_LPSS_PCI is not set
# CONFIG_PWM_LPSS_PLATFORM is not set
CONFIG_PWM_PCA9685=m

#
# IRQ chip support
#
CONFIG_ARM_GIC_MAX_NR=1
CONFIG_IPACK_BUS=y
# CONFIG_BOARD_TPCI200 is not set
# CONFIG_SERIAL_IPOCTAL is not set
CONFIG_RESET_CONTROLLER=y
# CONFIG_RESET_TI_SYSCON is not set
CONFIG_FMC=y
# CONFIG_FMC_FAKEDEV is not set
CONFIG_FMC_TRIVIAL=m
# CONFIG_FMC_WRITE_EEPROM is not set
CONFIG_FMC_CHARDEV=m

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
CONFIG_BCM_KONA_USB2_PHY=y
CONFIG_PHY_PXA_28NM_HSIC=y
# CONFIG_PHY_PXA_28NM_USB2 is not set
CONFIG_PHY_CPCAP_USB=y
CONFIG_PHY_QCOM_USB_HS=m
CONFIG_PHY_QCOM_USB_HSIC=m
CONFIG_PHY_SAMSUNG_USB2=m
CONFIG_PHY_TUSB1210=m
# CONFIG_POWERCAP is not set
CONFIG_MCB=y
# CONFIG_MCB_PCI is not set
CONFIG_MCB_LPC=m

#
# Performance monitor support
#
# CONFIG_RAS is not set
# CONFIG_THUNDERBOLT is not set

#
# Android
#
# CONFIG_ANDROID is not set
CONFIG_DAX=y
CONFIG_DEV_DAX=m
CONFIG_NVMEM=y

#
# HW tracing support
#
CONFIG_STM=y
CONFIG_STM_DUMMY=y
# CONFIG_STM_SOURCE_CONSOLE is not set
CONFIG_STM_SOURCE_HEARTBEAT=y
CONFIG_INTEL_TH=y
# CONFIG_INTEL_TH_PCI is not set
# CONFIG_INTEL_TH_ACPI is not set
CONFIG_INTEL_TH_GTH=y
CONFIG_INTEL_TH_STH=m
CONFIG_INTEL_TH_MSU=y
CONFIG_INTEL_TH_PTI=y
# CONFIG_INTEL_TH_DEBUG is not set
CONFIG_FPGA=y
CONFIG_ALTERA_PR_IP_CORE=m
# CONFIG_FPGA_MGR_ALTERA_CVP is not set
# CONFIG_FPGA_BRIDGE is not set
# CONFIG_FPGA_DFL is not set
CONFIG_PM_OPP=y
# CONFIG_UNISYS_VISORBUS is not set
CONFIG_SIOX=y
CONFIG_SIOX_BUS_GPIO=y
CONFIG_SLIMBUS=m
# CONFIG_SLIM_QCOM_CTRL is not set

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_MANDATORY_FILE_LOCKING is not set
CONFIG_FS_ENCRYPTION=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=y
CONFIG_CUSE=m
CONFIG_OVERLAY_FS=m
CONFIG_OVERLAY_FS_REDIRECT_DIR=y
# CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW is not set
# CONFIG_OVERLAY_FS_INDEX is not set
# CONFIG_OVERLAY_FS_XINO_AUTO is not set
CONFIG_OVERLAY_FS_METACOPY=y

#
# Caches
#
CONFIG_FSCACHE=m
# CONFIG_FSCACHE_STATS is not set
# CONFIG_FSCACHE_HISTOGRAM is not set
CONFIG_FSCACHE_DEBUG=y
# CONFIG_FSCACHE_OBJECT_LIST is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_MEMFD_CREATE=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=y
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=y
CONFIG_NLS_CODEPAGE_860=y
# CONFIG_NLS_CODEPAGE_861 is not set
CONFIG_NLS_CODEPAGE_862=y
CONFIG_NLS_CODEPAGE_863=y
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=y
# CONFIG_NLS_CODEPAGE_869 is not set
CONFIG_NLS_CODEPAGE_936=m
# CONFIG_NLS_CODEPAGE_950 is not set
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=y
# CONFIG_NLS_CODEPAGE_874 is not set
CONFIG_NLS_ISO8859_8=y
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=y
CONFIG_NLS_ISO8859_5=y
CONFIG_NLS_ISO8859_6=y
CONFIG_NLS_ISO8859_7=y
CONFIG_NLS_ISO8859_9=m
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=m
CONFIG_NLS_MAC_CELTIC=m
CONFIG_NLS_MAC_CENTEURO=m
# CONFIG_NLS_MAC_CROATIAN is not set
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=y
# CONFIG_NLS_MAC_ICELAND is not set
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
CONFIG_NLS_MAC_TURKISH=m
# CONFIG_NLS_UTF8 is not set
# CONFIG_DLM is not set

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_COMPAT=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
CONFIG_ENCRYPTED_KEYS=y
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_SECURITY_DMESG_RESTRICT=y
# CONFIG_SECURITY is not set
CONFIG_SECURITYFS=y
CONFIG_PAGE_TABLE_ISOLATION=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_HARDENED_USERCOPY_FALLBACK=y
CONFIG_HARDENED_USERCOPY_PAGESPAN=y
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=m
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=y
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_AUTHENC=y
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CHACHA20POLY1305=y
CONFIG_CRYPTO_AEGIS128=y
CONFIG_CRYPTO_AEGIS128L=m
# CONFIG_CRYPTO_AEGIS256 is not set
CONFIG_CRYPTO_AEGIS128_AESNI_SSE2=m
CONFIG_CRYPTO_AEGIS128L_AESNI_SSE2=y
CONFIG_CRYPTO_AEGIS256_AESNI_SSE2=y
CONFIG_CRYPTO_MORUS640=m
# CONFIG_CRYPTO_MORUS640_SSE2 is not set
CONFIG_CRYPTO_MORUS1280=m
CONFIG_CRYPTO_MORUS1280_GLUE=y
CONFIG_CRYPTO_MORUS1280_SSE2=y
CONFIG_CRYPTO_MORUS1280_AVX2=m
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=y
# CONFIG_CRYPTO_PCBC is not set
CONFIG_CRYPTO_XTS=y
# CONFIG_CRYPTO_KEYWRAP is not set

#
# Hash modes
#
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=y
CONFIG_CRYPTO_VMAC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_CRC32C_INTEL=y
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRC32_PCLMUL=y
CONFIG_CRYPTO_CRCT10DIF=m
CONFIG_CRYPTO_CRCT10DIF_PCLMUL=m
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=y
# CONFIG_CRYPTO_POLY1305_X86_64 is not set
CONFIG_CRYPTO_MD4=y
# CONFIG_CRYPTO_MD5 is not set
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
# CONFIG_CRYPTO_RMD160 is not set
CONFIG_CRYPTO_RMD256=y
CONFIG_CRYPTO_RMD320=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA1_SSSE3=m
# CONFIG_CRYPTO_SHA256_SSSE3 is not set
# CONFIG_CRYPTO_SHA512_SSSE3 is not set
# CONFIG_CRYPTO_SHA1_MB is not set
# CONFIG_CRYPTO_SHA256_MB is not set
CONFIG_CRYPTO_SHA512_MB=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_SHA3=y
# CONFIG_CRYPTO_SM3 is not set
CONFIG_CRYPTO_TGR192=m
# CONFIG_CRYPTO_WP512 is not set
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_AES_X86_64=y
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=y
CONFIG_CRYPTO_BLOWFISH_X86_64=y
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAMELLIA_X86_64=y
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64=m
CONFIG_CRYPTO_CAST_COMMON=y
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST5_AVX_X86_64=m
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_CAST6_AVX_X86_64=y
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
CONFIG_CRYPTO_FCRYPT=m
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
CONFIG_CRYPTO_CHACHA20=y
CONFIG_CRYPTO_CHACHA20_X86_64=m
CONFIG_CRYPTO_SEED=y
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX_X86_64=y
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=y
# CONFIG_CRYPTO_SM4 is not set
# CONFIG_CRYPTO_SPECK is not set
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_TWOFISH_COMMON=y
CONFIG_CRYPTO_TWOFISH_X86_64=y
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=y
CONFIG_CRYPTO_TWOFISH_AVX_X86_64=y

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
CONFIG_CRYPTO_LZ4=m
# CONFIG_CRYPTO_LZ4HC is not set
CONFIG_CRYPTO_ZSTD=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_USER_API=y
# CONFIG_CRYPTO_USER_API_HASH is not set
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_USER_API_RNG=y
CONFIG_CRYPTO_USER_API_AEAD=y
# CONFIG_CRYPTO_HW is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
# CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE is not set

#
# Certificates for signature checking
#
# CONFIG_SYSTEM_TRUSTED_KEYRING is not set
CONFIG_SYSTEM_BLACKLIST_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_RATIONAL=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=m
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=m
# CONFIG_CRC32_SLICEBY8 is not set
CONFIG_CRC32_SLICEBY4=y
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC64=m
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_CRC8=m
CONFIG_XXHASH=m
CONFIG_RANDOM32_SELFTEST=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=m
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMPRESS=m
CONFIG_ZSTD_DECOMPRESS=m
# CONFIG_XZ_DEC is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_RADIX_TREE_MULTIORDER=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DMA_DIRECT_OPS=y
CONFIG_SWIOTLB=y
CONFIG_SGL_ALLOC=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_GLOB_SELFTEST=y
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_CORDIC=m
CONFIG_DDR=y
# CONFIG_IRQ_POLL is not set
CONFIG_MPILIB=y
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_STRING_SELFTEST=m

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_GDB_SCRIPTS is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=2048
CONFIG_STRIP_ASM_SYMS=y
CONFIG_READABLE_ASM=y
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_FRAME_POINTER=y
CONFIG_STACK_VALIDATION=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_PAGE_POISONING=y
# CONFIG_PAGE_POISONING_NO_SANITY is not set
# CONFIG_PAGE_POISONING_ZERO is not set
CONFIG_DEBUG_PAGE_REF=y
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_DEBUG_OBJECTS=y
# CONFIG_DEBUG_OBJECTS_SELFTEST is not set
CONFIG_DEBUG_OBJECTS_FREE=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_OBJECTS_WORK=y
# CONFIG_DEBUG_OBJECTS_RCU_HEAD is not set
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
CONFIG_DEBUG_SLAB=y
CONFIG_DEBUG_SLAB_LEAK=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VM_VMACACHE=y
CONFIG_DEBUG_VM_RB=y
# CONFIG_DEBUG_VM_PGFLAGS is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
CONFIG_KCOV=y
CONFIG_KCOV_INSTRUMENT_ALL=y
CONFIG_DEBUG_SHIRQ=y

#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
# CONFIG_HARDLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
CONFIG_SCHED_STACK_END_CHECK=y
# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
CONFIG_PROVE_LOCKING=y
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_LOCKDEP=y
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
# CONFIG_LOCK_TORTURE_TEST is not set
CONFIG_WW_MUTEX_SELFTEST=m
CONFIG_TRACE_IRQFLAGS=y
CONFIG_STACKTRACE=y
CONFIG_WARN_ALL_UNSEEDED_RANDOM=y
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_KOBJECT_RELEASE is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PI_LIST is not set
CONFIG_DEBUG_SG=y
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
CONFIG_PROVE_RCU=y
CONFIG_TORTURE_TEST=m
# CONFIG_RCU_PERF_TEST is not set
CONFIG_RCU_TORTURE_TEST=m
CONFIG_RCU_TRACE=y
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
CONFIG_NOTIFIER_ERROR_INJECTION=m
CONFIG_PM_NOTIFIER_ERROR_INJECT=m
# CONFIG_NETDEV_NOTIFIER_ERROR_INJECT is not set
CONFIG_FUNCTION_ERROR_INJECTION=y
CONFIG_FAULT_INJECTION=y
CONFIG_FAILSLAB=y
# CONFIG_FAIL_PAGE_ALLOC is not set
# CONFIG_FAIL_FUTEX is not set
# CONFIG_FAULT_INJECTION_DEBUG_FS is not set
# CONFIG_LATENCYTOP is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_PREEMPTIRQ_TRACEPOINTS=y
CONFIG_TRACING=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
# CONFIG_MEMTEST is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
CONFIG_UBSAN=y
# CONFIG_UBSAN_SANITIZE_ALL is not set
# CONFIG_UBSAN_ALIGNMENT is not set
CONFIG_TEST_UBSAN=m
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_X86_VERBOSE_BOOTUP=y
# CONFIG_EARLY_PRINTK is not set
CONFIG_X86_PTDUMP_CORE=y
# CONFIG_X86_PTDUMP is not set
CONFIG_DEBUG_WX=y
CONFIG_DOUBLEFAULT=y
CONFIG_DEBUG_TLBFLUSH=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
# CONFIG_OPTIMIZE_INLINING is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
CONFIG_X86_DEBUG_FPU=y
# CONFIG_PUNIT_ATOM_DEBUG is not set
# CONFIG_UNWINDER_ORC is not set
CONFIG_UNWINDER_FRAME_POINTER=y
# CONFIG_UNWINDER_GUESS is not set

[-- Attachment #3: job-script --]
[-- Type: text/plain, Size: 4523 bytes --]

#!/bin/sh

export_top_env()
{
	export suite='boot'
	export testcase='boot'
	export timeout='10m'
	export job_origin='/lkp/lkp/src/jobs/boot.yaml'
	export queue='validate'
	export testbox='vm-ivb41-2G-3'
	export tbox_group='vm-ivb41-2G'
	export branch='linux-review/Dmitry-Safonov/ns-Introduce-Time-Namespace/20180920-194322'
	export commit='3cc8de9dcbe53955edcc65122f169666b4f6cbd9'
	export kconfig='x86_64-randconfig-s2-09211213'
	export repeat_to=4
	export submit_id='5ba53ba00b9a933d88954ed9'
	export job_file='/lkp/jobs/scheduled/vm-ivb41-2G-3/boot-1-debian-x86_64-2018-04-03.cgz-3cc8de9dcbe53955edcc65122f169666b4f6cbd9-20180922-81288-1ipg1g8-3.yaml'
	export id='79c7168ae5ca41a2423006cff5e5e06e578c1c8f'
	export model='qemu-system-x86_64 -enable-kvm -cpu IvyBridge'
	export nr_vm=16
	export nr_cpu=4
	export memory='2G'
	export hdd_partitions='/dev/vda /dev/vdb /dev/vdc /dev/vdd /dev/vde'
	export swap_partitions='/dev/vdf'
	export need_kconfig='CONFIG_KVM_GUEST=y'
	export ssh_base_port=23420
	export compiler='gcc-6'
	export rootfs='debian-x86_64-2018-04-03.cgz'
	export enqueue_time='2018-09-22 02:42:43 +0800'
	export _id='5ba53ba30b9a933d88954eda'
	export _rt='/result/boot/1/vm-ivb41-2G/debian-x86_64-2018-04-03.cgz/x86_64-randconfig-s2-09211213/gcc-6/3cc8de9dcbe53955edcc65122f169666b4f6cbd9'
	export user='lkp'
	export result_root='/result/boot/1/vm-ivb41-2G/debian-x86_64-2018-04-03.cgz/x86_64-randconfig-s2-09211213/gcc-6/3cc8de9dcbe53955edcc65122f169666b4f6cbd9/3'
	export LKP_SERVER='inn'
	export max_uptime=600
	export initrd='/osimage/debian/debian-x86_64-2018-04-03.cgz'
	export bootloader_append='root=/dev/ram0
user=lkp
job=/lkp/jobs/scheduled/vm-ivb41-2G-3/boot-1-debian-x86_64-2018-04-03.cgz-3cc8de9dcbe53955edcc65122f169666b4f6cbd9-20180922-81288-1ipg1g8-3.yaml
ARCH=x86_64
kconfig=x86_64-randconfig-s2-09211213
branch=linux-review/Dmitry-Safonov/ns-Introduce-Time-Namespace/20180920-194322
commit=3cc8de9dcbe53955edcc65122f169666b4f6cbd9
BOOT_IMAGE=/pkg/linux/x86_64-randconfig-s2-09211213/gcc-6/3cc8de9dcbe53955edcc65122f169666b4f6cbd9/vmlinuz-4.19.0-rc4-00099-g3cc8de9d
max_uptime=600
RESULT_ROOT=/result/boot/1/vm-ivb41-2G/debian-x86_64-2018-04-03.cgz/x86_64-randconfig-s2-09211213/gcc-6/3cc8de9dcbe53955edcc65122f169666b4f6cbd9/3
LKP_SERVER=inn
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw'
	export modules_initrd='/pkg/linux/x86_64-randconfig-s2-09211213/gcc-6/3cc8de9dcbe53955edcc65122f169666b4f6cbd9/modules.cgz'
	export bm_initrd='/osimage/deps/debian-x86_64-2018-04-03.cgz/run-ipconfig_2018-04-03.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/lkp_2018-04-03.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/rsync-rootfs_2018-04-03.cgz'
	export lkp_initrd='/lkp/lkp/lkp-x86_64.cgz'
	export site='inn'
	export LKP_CGI_PORT=80
	export LKP_CIFS_PORT=139
	export kernel='/pkg/linux/x86_64-randconfig-s2-09211213/gcc-6/3cc8de9dcbe53955edcc65122f169666b4f6cbd9/vmlinuz-4.19.0-rc4-00099-g3cc8de9d'
	export dequeue_time='2018-09-22 02:42:51 +0800'
	export job_initrd='/lkp/jobs/scheduled/vm-ivb41-2G-3/boot-1-debian-x86_64-2018-04-03.cgz-3cc8de9dcbe53955edcc65122f169666b4f6cbd9-20180922-81288-1ipg1g8-3.cgz'

	[ -n "$LKP_SRC" ] ||
	export LKP_SRC=/lkp/${user:-lkp}/src
}

run_job()
{
	echo $$ > $TMP/run-job.pid

	. $LKP_SRC/lib/http.sh
	. $LKP_SRC/lib/job.sh
	. $LKP_SRC/lib/env.sh

	export_top_env

	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-slabinfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-meminfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper memmap
	run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time
	run_monitor $LKP_SRC/monitors/wrapper kmsg
	run_monitor $LKP_SRC/monitors/wrapper oom-killer
	run_monitor $LKP_SRC/monitors/plain/watchdog

	run_test $LKP_SRC/tests/wrapper sleep 1
}

extract_stats()
{
	$LKP_SRC/stats/wrapper boot-slabinfo
	$LKP_SRC/stats/wrapper boot-meminfo
	$LKP_SRC/stats/wrapper memmap
	$LKP_SRC/stats/wrapper boot-memory
	$LKP_SRC/stats/wrapper boot-time
	$LKP_SRC/stats/wrapper kernel-size
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper sleep

	$LKP_SRC/stats/wrapper time sleep.time
	$LKP_SRC/stats/wrapper time
	$LKP_SRC/stats/wrapper dmesg
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper stderr
	$LKP_SRC/stats/wrapper last_state
}

"$@"

[-- Attachment #4: dmesg.xz --]
[-- Type: application/x-xz, Size: 11596 bytes --]

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-28 19:32               ` Thomas Gleixner
@ 2018-10-01  9:05                 ` Eric W. Biederman
  2018-10-01  9:15                 ` Setting monotonic time? Eric W. Biederman
  1 sibling, 0 replies; 59+ messages in thread
From: Eric W. Biederman @ 2018-10-01  9:05 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Andrey Vagin, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

Thomas Gleixner <tglx@linutronix.de> writes:

> Eric,
>
> On Fri, 28 Sep 2018, Eric W. Biederman wrote:
>> Thomas Gleixner <tglx@linutronix.de> writes:
>> > On Wed, 26 Sep 2018, Eric W. Biederman wrote:
>> >> At the same time using the techniques from the nohz work and a little
>> >> smarts I expect we could get the code to scale.
>> >
>> > You'd need to invoke the update when the namespace is switched in and
>> > hasn't been updated since the last tick happened. That might be doable, but
>> > you also need to take the wraparound constraints of the underlying
>> > clocksources into account, which again can cause walking all name spaces
>> > when they are all idle long enough.
>> 
>> The wrap around constraints being how long before the time sources wrap
>> around so you have to read them once per wrap around?  I have not dug
>> deeply enough into the code to see that yet.
>
> It's done by limiting the NOHZ idle time when all CPUs are going into deep
> sleep for a long time, i.e. we make sure that at least one CPU comes back
> sufficiently _before_ the wraparound happens and invokes the update
> function.
>
> It's not so much a problem for TSC, but not every clocksource the kernel
> supports has wraparound times in the range of hundreds of years.
>
> But yes, your idea of keeping track of wraparounds might work. Tricky, but
> looks feasible on first sight, but we should be aware of the dragons.

Oh.  Yes.  Definitely.  A key enabler of any namespace implementation is
figuring out how to tame the dragons.

>> Please pardon me for thinking out load.
>> 
>> There are one or more time sources that we use to compute the time
>> and for each time source we have a conversion from ticks of the
>> time source to nanoseconds.
>> 
>> Each time source needs to be sampled at least once per wrap-around
>> and something incremented so that we don't loose time when looking
>> at that time source.
>> 
>> There are several clocks presented to userspace and they all share the
>> same length of second and are all fundamentally offsets from
>> CLOCK_MONOTONIC.
>
> Yes. That's the readout side. This one is doable. But now look at timers.
>
> If you arm the timer from a name space, then it needs to be converted to
> host time in order to sort it into the hrtimer queue and at some point arm
> the clockevent device for it. This works as long as host and name space
> time have a constant offset and the same skew.
>
> Once the name space time has a different skew this falls apart because the
> armed timer will either expire late or early.
>
> Late might be acceptable, early violates the spec. You could do an extra
> check for rescheduling it, if it's early, but that requires to store the
> name space time accessor in the hrtimer itself because not every timer
> expiry happens so that it can be checked in the name space context (think
> signal based timers). We need to add this extra magic right into
> __hrtimer_run_queues() which is called from the hard and soft interrupt. We
> really don't want to touch all relevant callbacks or syscalls. The latter
> is not sufficient anyway for signal based timer delivery.
>
> That's going to be interesting in terms of synchronization and might also
> cause substantial overhead at least for the timers which belong to name
> spaces.
>
> But that also means that anything which is early can and probably will
> cause rearming of the timer hardware possibly for a very short delta. We
> need to think about whether this can be abused to create interrupt storms.
>
> Now if you accept a bit late, which I'm not really happy about, then you
> surely won't accept very late, i.e. hours, days. But that can happen when
> settimeofday() comes into play. Right now with a single time domain, this
> is easy. When settimeofday() or adjtimex() makes time jump, we just go and
> reprogramm the hardware timers accordingly, which might also result in
> immediate expiry of timers.
>
> But this does not help for time jumps in name spaces because the timer is
> enqueued on the host time base.
>
> And no, we should not think about creating per name space hrtimer queues
> and then have to walk through all of them for finding the first expiring
> timer in order to arm the hardware. That cannot scale.
>
> Walking all hrtimer bases on all CPUs and check all queued timers whether
> they belong to the affected name space does not scale either.
>
> So we'd need to keep track of queued timers belonging to a name space and
> then just handle them. Interesting locking problem and also a scalability
> issue because this might need to be done on all online CPUs. Haven't
> thought it through, but it makes me shudder.

Yes.  I can see how this is a dragon that we need to figure out how to
tame.  It already exist somewhat for CLOCK_MONOTONIC vs CLOCK_REALTIME
but still.

>> I see two fundamental driving cases for a time namespace.
>
> <SNIP>
>
> I completely understand the problem you are trying to solve and yes, the
> read out of time should be a solvable problem.

There is simplified subproblem that I want to ask about but I will reply
separately for that.

>> Not that I think a final implementation would necessary look like what I
>> have described. I just think it is possible with extreme care to evolve
>> the current code base into something that can efficiently handle
>> multiple time domains with slightly different lenghts of second.
>
> Yes, it really needs some serious thoughts and timekeeping is a really
> complex place especially with NTP/PTP in play. We had quite some quality
> time to make it work correctly and reliably, now you come along and want to
> transform it into a multidimensional puzzle. :)

I thought it was Einstein who pointed out what a puzzle timekeeping is,
with the rest of us just playing catch up. ;-)

>> It does though sound like it is going to take some serious digging
>> through the code to understand how what everything does and how and why
>> everthing works the way it does.  Not something grafted on top with just
>> a cursory understanding of how the code works.
>
> I fully agree and I'm happy to help with explanations and ideas and being
> the one who shoots holes into yours.

Sounds good.

Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Setting monotonic time?
  2018-09-28 19:32               ` Thomas Gleixner
  2018-10-01  9:05                 ` Eric W. Biederman
@ 2018-10-01  9:15                 ` Eric W. Biederman
  2018-10-01 18:52                   ` Thomas Gleixner
  2018-10-01 20:51                   ` Andrey Vagin
  1 sibling, 2 replies; 59+ messages in thread
From: Eric W. Biederman @ 2018-10-01  9:15 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Andrey Vagin, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest


In the context of process migration there is a simpler subproblem that I
think it is worth exploring if we can do something about.

For a cluster of machines all running with synchronized
clocks. CLOCK_REALTIME matches. CLOCK_MONOTNIC does not match between
machines.   Not having a matching CLOCK_MONOTONIC prevents successful
process migration between nodes in that cluster.

Would it be possible to allow setting CLOCK_MONOTONIC at the very
beginning of time?  So that all of the nodes in a cluster can be in
sync?

No change in skew just in offset for CLOCK_MONOTONIC.

There are also dragons involved in coordinating things so that
CLOCK_MONOTONIC gets set before CLOCK_MONOTONIC gets used.  So I don't
know if allowing CLOCK_MONOTONIC to be set would be practical but it
seems work exploring all on it's own.

Dmitry would setting CLOCK_MONOTONIC exactly once at boot time solve
your problem that is you are looking at a time namespace to solve?

Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-01  9:15                 ` Setting monotonic time? Eric W. Biederman
@ 2018-10-01 18:52                   ` Thomas Gleixner
  2018-10-02 20:00                     ` Arnd Bergmann
  2018-10-01 20:51                   ` Andrey Vagin
  1 sibling, 1 reply; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-01 18:52 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Andrey Vagin, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

On Mon, 1 Oct 2018, Eric W. Biederman wrote:
> In the context of process migration there is a simpler subproblem that I
> think it is worth exploring if we can do something about.
> 
> For a cluster of machines all running with synchronized
> clocks. CLOCK_REALTIME matches. CLOCK_MONOTNIC does not match between
> machines.   Not having a matching CLOCK_MONOTONIC prevents successful
> process migration between nodes in that cluster.
> 
> Would it be possible to allow setting CLOCK_MONOTONIC at the very
> beginning of time?  So that all of the nodes in a cluster can be in
> sync?
> 
> No change in skew just in offset for CLOCK_MONOTONIC.
> 
> There are also dragons involved in coordinating things so that
> CLOCK_MONOTONIC gets set before CLOCK_MONOTONIC gets used.  So I don't
> know if allowing CLOCK_MONOTONIC to be set would be practical but it
> seems work exploring all on it's own.

It's used very early on in the kernel, so that would be a major surprise
for many things including user space which has expectations on clock
monotonic.

It would be reasonably easy to add CLOCK_MONONOTIC_SYNC which can be set in
the way you described and then in name spaces make it possible to magically
map CLOCK_MONOTONIC to CLOCK_MONOTONIC_SYNC.

It still wouldn't allow to have different NTP/PTP time domains, but might
be a good start to address the main migration headaches.

Thanks,

	tglx

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-01  9:15                 ` Setting monotonic time? Eric W. Biederman
  2018-10-01 18:52                   ` Thomas Gleixner
@ 2018-10-01 20:51                   ` Andrey Vagin
  2018-10-02  6:16                     ` Thomas Gleixner
  1 sibling, 1 reply; 59+ messages in thread
From: Andrey Vagin @ 2018-10-01 20:51 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Thomas Gleixner, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

On Mon, Oct 01, 2018 at 11:15:32AM +0200, Eric W. Biederman wrote:
> 
> In the context of process migration there is a simpler subproblem that I
> think it is worth exploring if we can do something about.
> 
> For a cluster of machines all running with synchronized
> clocks. CLOCK_REALTIME matches. CLOCK_MONOTNIC does not match between
> machines.   Not having a matching CLOCK_MONOTONIC prevents successful
> process migration between nodes in that cluster.
> 
> Would it be possible to allow setting CLOCK_MONOTONIC at the very
> beginning of time?  So that all of the nodes in a cluster can be in
> sync?

Here is a question about how to synchronize clocks between nodes. It
looks like we will need to have a working network for this, but a
network configuration may be non-trivial and it can require to run a few
processes which can use CLOCK_MONOTNIC...

> 
> No change in skew just in offset for CLOCK_MONOTONIC.
> 
> There are also dragons involved in coordinating things so that
> CLOCK_MONOTONIC gets set before CLOCK_MONOTONIC gets used.  So I don't
> know if allowing CLOCK_MONOTONIC to be set would be practical but it
> seems work exploring all on it's own.
> 
> Dmitry would setting CLOCK_MONOTONIC exactly once at boot time solve
> your problem that is you are looking at a time namespace to solve?

Process migration is only one of use-cases. Another use-case is
restoring from snapshots. It may be even more popular than process
migration. We can't guarantee that all snapshots will be done in one
cluster. For example, a user meets a bug, does a container snapshot and
attaches it to a bug report.

> 
> Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-27 21:41             ` Thomas Gleixner
@ 2018-10-01 23:20               ` Andrey Vagin
  2018-10-02  6:15                 ` Thomas Gleixner
  0 siblings, 1 reply; 59+ messages in thread
From: Andrey Vagin @ 2018-10-01 23:20 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Eric W. Biederman, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

On Thu, Sep 27, 2018 at 11:41:49PM +0200, Thomas Gleixner wrote:
> On Thu, 27 Sep 2018, Thomas Gleixner wrote:
> > Add time skew via NTP/PTP into the picture and you might have to adjust
> > timers as well, because you need to guarantee that they are not expiring
> > early.
> > 
> > I haven't looked through Dimitry's patches yet, but I don't see how this
> > can work at all without introducing subtle issues all over the place.
> 
> And just a quick scan tells me that this is broken. Timers will expire
> early or late. The latter is acceptible to some extent, but larger delays
> might come with surprise. Expiring early is an absolute nono.

Do you mean that we have to adjust all timers after changing offset for
CLOCK_MONOTONIC or CLOCK_BOOTTIME? Our idea is that offsets for
monotonic and boot times will be set immediately after creating a time
namespace before using any timers.

It is interesting to think what a use-case for changing these offsets
after creating timers. It may be useful for testing needs. A user sets a
timer in an hour and then change a clock offset forward and check that a
test application handles the timer properly.

> 
> Thanks,
> 
> 	tglx
> 

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-10-01 23:20               ` Andrey Vagin
@ 2018-10-02  6:15                 ` Thomas Gleixner
  2018-10-02 21:05                   ` Dmitry Safonov
  0 siblings, 1 reply; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-02  6:15 UTC (permalink / raw)
  To: Andrey Vagin
  Cc: Eric W. Biederman, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

On Mon, 1 Oct 2018, Andrey Vagin wrote:

> On Thu, Sep 27, 2018 at 11:41:49PM +0200, Thomas Gleixner wrote:
> > On Thu, 27 Sep 2018, Thomas Gleixner wrote:
> > > Add time skew via NTP/PTP into the picture and you might have to adjust
> > > timers as well, because you need to guarantee that they are not expiring
> > > early.
> > > 
> > > I haven't looked through Dimitry's patches yet, but I don't see how this
> > > can work at all without introducing subtle issues all over the place.
> > 
> > And just a quick scan tells me that this is broken. Timers will expire
> > early or late. The latter is acceptible to some extent, but larger delays
> > might come with surprise. Expiring early is an absolute nono.
> 
> Do you mean that we have to adjust all timers after changing offset for
> CLOCK_MONOTONIC or CLOCK_BOOTTIME? Our idea is that offsets for
> monotonic and boot times will be set immediately after creating a time
> namespace before using any timers.

I explained that in detail in this thread, but it's not about the initial
setting of clock mono/boot before any timers have been armed.

It's about setting the offset or clock realtime (via settimeofday) when
timers are already armed. Also having a entirely different time domain,
e.g. separate NTP adjustments, makes that necessary.

Thanks,

	tglx

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-01 20:51                   ` Andrey Vagin
@ 2018-10-02  6:16                     ` Thomas Gleixner
  0 siblings, 0 replies; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-02  6:16 UTC (permalink / raw)
  To: Andrey Vagin
  Cc: Eric W. Biederman, Dmitry Safonov, linux-kernel, Dmitry Safonov,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelianov, Shuah Khan, containers, criu,
	linux-api, x86, Alexey Dobriyan, linux-kselftest

On Mon, 1 Oct 2018, Andrey Vagin wrote:
> On Mon, Oct 01, 2018 at 11:15:32AM +0200, Eric W. Biederman wrote:
> > 
> > In the context of process migration there is a simpler subproblem that I
> > think it is worth exploring if we can do something about.
> > 
> > For a cluster of machines all running with synchronized
> > clocks. CLOCK_REALTIME matches. CLOCK_MONOTNIC does not match between
> > machines.   Not having a matching CLOCK_MONOTONIC prevents successful
> > process migration between nodes in that cluster.
> > 
> > Would it be possible to allow setting CLOCK_MONOTONIC at the very
> > beginning of time?  So that all of the nodes in a cluster can be in
> > sync?
> 
> Here is a question about how to synchronize clocks between nodes. It
> looks like we will need to have a working network for this, but a
> network configuration may be non-trivial and it can require to run a few
> processes which can use CLOCK_MONOTNIC...
> 
> > 
> > No change in skew just in offset for CLOCK_MONOTONIC.
> > 
> > There are also dragons involved in coordinating things so that
> > CLOCK_MONOTONIC gets set before CLOCK_MONOTONIC gets used.  So I don't
> > know if allowing CLOCK_MONOTONIC to be set would be practical but it
> > seems work exploring all on it's own.
> > 
> > Dmitry would setting CLOCK_MONOTONIC exactly once at boot time solve
> > your problem that is you are looking at a time namespace to solve?
> 
> Process migration is only one of use-cases. Another use-case is
> restoring from snapshots. It may be even more popular than process
> migration. We can't guarantee that all snapshots will be done in one
> cluster. For example, a user meets a bug, does a container snapshot and
> attaches it to a bug report.

Sure, but see my reply to Eric. That could be solved with that extra clock
id, which then gets mapped to monotonic for name spaces.

Thanks,

	tglx

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-01 18:52                   ` Thomas Gleixner
@ 2018-10-02 20:00                     ` Arnd Bergmann
  2018-10-02 20:06                       ` Thomas Gleixner
  0 siblings, 1 reply; 59+ messages in thread
From: Arnd Bergmann @ 2018-10-02 20:00 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Eric W . Biederman, avagin, dima, Linux Kernel Mailing List,
	0x7f454c46, adrian, Andy Lutomirski, Christian Brauner, gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov, xemul,
	Shuah Khan, containers, criu, Linux API,
	the arch/x86 maintainers, Alexey Dobriyan, linux-kselftest

On Mon, Oct 1, 2018 at 8:53 PM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> On Mon, 1 Oct 2018, Eric W. Biederman wrote:
> > In the context of process migration there is a simpler subproblem that I
> > think it is worth exploring if we can do something about.
> >
> > For a cluster of machines all running with synchronized
> > clocks. CLOCK_REALTIME matches. CLOCK_MONOTNIC does not match between
> > machines.   Not having a matching CLOCK_MONOTONIC prevents successful
> > process migration between nodes in that cluster.
> >
> > Would it be possible to allow setting CLOCK_MONOTONIC at the very
> > beginning of time?  So that all of the nodes in a cluster can be in
> > sync?
> >
> > No change in skew just in offset for CLOCK_MONOTONIC.
> >
> > There are also dragons involved in coordinating things so that
> > CLOCK_MONOTONIC gets set before CLOCK_MONOTONIC gets used.  So I don't
> > know if allowing CLOCK_MONOTONIC to be set would be practical but it
> > seems work exploring all on it's own.
>
> It's used very early on in the kernel, so that would be a major surprise
> for many things including user space which has expectations on clock
> monotonic.
>
> It would be reasonably easy to add CLOCK_MONONOTIC_SYNC which can be set in
> the way you described and then in name spaces make it possible to magically
> map CLOCK_MONOTONIC to CLOCK_MONOTONIC_SYNC.
>
> It still wouldn't allow to have different NTP/PTP time domains, but might
> be a good start to address the main migration headaches.

If we make CLOCK_MONOTONIC settable this way in a namespace,
do you think that should include device drivers that report timestamps
in CLOCK_MONOTONIC base, or only the timekeeping clock and timer
interfaces?

Examples for drivers that can report timestamps are input, sound, v4l,
and drm. I think most of these can report stamps in either monotonic
or realtime base, while socket timestamps notably are always in
realtime.

We can probably get away with not setting the timebase for those
device drivers as long as the checkpoint/restart and migration features
are not expected to restore the state of an open character device
in that way. I don't know if that is a reasonable assumption to make
for the examples I listed.

      Arnd

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-02 20:00                     ` Arnd Bergmann
@ 2018-10-02 20:06                       ` Thomas Gleixner
  2018-10-03  4:50                         ` Eric W. Biederman
  0 siblings, 1 reply; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-02 20:06 UTC (permalink / raw)
  To: Arnd Bergmann
  Cc: Eric W . Biederman, avagin, dima, Linux Kernel Mailing List,
	0x7f454c46, adrian, Andy Lutomirski, Christian Brauner, gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov, xemul,
	Shuah Khan, containers, criu, Linux API,
	the arch/x86 maintainers, Alexey Dobriyan, linux-kselftest

On Tue, 2 Oct 2018, Arnd Bergmann wrote:
> On Mon, Oct 1, 2018 at 8:53 PM Thomas Gleixner <tglx@linutronix.de> wrote:
> >
> > On Mon, 1 Oct 2018, Eric W. Biederman wrote:
> > > In the context of process migration there is a simpler subproblem that I
> > > think it is worth exploring if we can do something about.
> > >
> > > For a cluster of machines all running with synchronized
> > > clocks. CLOCK_REALTIME matches. CLOCK_MONOTNIC does not match between
> > > machines.   Not having a matching CLOCK_MONOTONIC prevents successful
> > > process migration between nodes in that cluster.
> > >
> > > Would it be possible to allow setting CLOCK_MONOTONIC at the very
> > > beginning of time?  So that all of the nodes in a cluster can be in
> > > sync?
> > >
> > > No change in skew just in offset for CLOCK_MONOTONIC.
> > >
> > > There are also dragons involved in coordinating things so that
> > > CLOCK_MONOTONIC gets set before CLOCK_MONOTONIC gets used.  So I don't
> > > know if allowing CLOCK_MONOTONIC to be set would be practical but it
> > > seems work exploring all on it's own.
> >
> > It's used very early on in the kernel, so that would be a major surprise
> > for many things including user space which has expectations on clock
> > monotonic.
> >
> > It would be reasonably easy to add CLOCK_MONONOTIC_SYNC which can be set in
> > the way you described and then in name spaces make it possible to magically
> > map CLOCK_MONOTONIC to CLOCK_MONOTONIC_SYNC.
> >
> > It still wouldn't allow to have different NTP/PTP time domains, but might
> > be a good start to address the main migration headaches.
> 
> If we make CLOCK_MONOTONIC settable this way in a namespace,
> do you think that should include device drivers that report timestamps
> in CLOCK_MONOTONIC base, or only the timekeeping clock and timer
> interfaces?

Uurgh. That gets messy very fast.

> Examples for drivers that can report timestamps are input, sound, v4l,
> and drm. I think most of these can report stamps in either monotonic
> or realtime base, while socket timestamps notably are always in
> realtime.
> 
> We can probably get away with not setting the timebase for those
> device drivers as long as the checkpoint/restart and migration features
> are not expected to restore the state of an open character device
> in that way. I don't know if that is a reasonable assumption to make
> for the examples I listed.

No idea. I'm not a container migration wizard.

Thanks,

	tglx

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-10-02  6:15                 ` Thomas Gleixner
@ 2018-10-02 21:05                   ` Dmitry Safonov
  2018-10-02 21:26                     ` Thomas Gleixner
  0 siblings, 1 reply; 59+ messages in thread
From: Dmitry Safonov @ 2018-10-02 21:05 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Andrei Vagin, Eric W. Biederman, Dmitry Safonov, open list,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, containers, crml,
	Linux API, X86 ML, Alexey Dobriyan, linux-kselftest

Hi Thomas, Andrei, Eric,

On Tue, 2 Oct 2018 at 07:15, Thomas Gleixner <tglx@linutronix.de> wrote:
>
> On Mon, 1 Oct 2018, Andrey Vagin wrote:
>
> > On Thu, Sep 27, 2018 at 11:41:49PM +0200, Thomas Gleixner wrote:
> > > On Thu, 27 Sep 2018, Thomas Gleixner wrote:
> > > > Add time skew via NTP/PTP into the picture and you might have to adjust
> > > > timers as well, because you need to guarantee that they are not expiring
> > > > early.
> > > >
> > > > I haven't looked through Dimitry's patches yet, but I don't see how this
> > > > can work at all without introducing subtle issues all over the place.
> > >
> > > And just a quick scan tells me that this is broken. Timers will expire
> > > early or late. The latter is acceptible to some extent, but larger delays
> > > might come with surprise. Expiring early is an absolute nono.
> >
> > Do you mean that we have to adjust all timers after changing offset for
> > CLOCK_MONOTONIC or CLOCK_BOOTTIME? Our idea is that offsets for
> > monotonic and boot times will be set immediately after creating a time
> > namespace before using any timers.
>
> I explained that in detail in this thread, but it's not about the initial
> setting of clock mono/boot before any timers have been armed.
>
> It's about setting the offset or clock realtime (via settimeofday) when
> timers are already armed. Also having a entirely different time domain,
> e.g. separate NTP adjustments, makes that necessary.

It looks like, there is a bit of misunderstanding each other:
Andrei was talking about the current RFC version, where we haven't
introduced offsets for clock realtime. While Thomas IIUC, is looking
how-to expand time namespace over realtime.

As CLOCK_REALTIME virtualization raises so many complex questions
like a different length of the second or list of realtime timers in ns we
haven't added any realization for it.

It seems like an initial introduction for timens can be expanded after to cover
realtime clocks too. While it may seem incomplete, it solves issues for
restoring/migration of real-world applications like nodejs, Oracle DB server
which fails after being restored if there is a leap in monotonic time.

While solving the mentioned issues, it doesn't bring overhead.
(well, Andy noted that cmp for zero-offsets on vdso can be optimized too,
which will be done in v1).

Thomas, thanks much for your input - now we know that we'll need to
introduce list for timers in namespace when we'll add realtime clocks.
Do you believe that CLOCK_MONOTONIC_SYNC would be an easier
concept than offsets per-namespace?

Thanks,
             Dmitry

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-10-02 21:05                   ` Dmitry Safonov
@ 2018-10-02 21:26                     ` Thomas Gleixner
  0 siblings, 0 replies; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-02 21:26 UTC (permalink / raw)
  To: Dmitry Safonov
  Cc: Andrei Vagin, Eric W. Biederman, Dmitry Safonov, open list,
	Adrian Reber, Andy Lutomirski, Christian Brauner,
	Cyrill Gorcunov, H. Peter Anvin, Ingo Molnar, Jeff Dike,
	Oleg Nesterov, Pavel Emelyanov, Shuah Khan, containers, crml,
	Linux API, X86 ML, Alexey Dobriyan, linux-kselftest

Dmitry,

On Tue, 2 Oct 2018, Dmitry Safonov wrote:
> On Tue, 2 Oct 2018 at 07:15, Thomas Gleixner <tglx@linutronix.de> wrote:
> > I explained that in detail in this thread, but it's not about the initial
> > setting of clock mono/boot before any timers have been armed.
> >
> > It's about setting the offset or clock realtime (via settimeofday) when
> > timers are already armed. Also having a entirely different time domain,
> > e.g. separate NTP adjustments, makes that necessary.
> 
> It looks like, there is a bit of misunderstanding each other:
> Andrei was talking about the current RFC version, where we haven't
> introduced offsets for clock realtime. While Thomas IIUC, is looking
> how-to expand time namespace over realtime.
>
> As CLOCK_REALTIME virtualization raises so many complex questions
> like a different length of the second or list of realtime timers in ns we
> haven't added any realization for it.
> 
> It seems like an initial introduction for timens can be expanded after to cover
> realtime clocks too. While it may seem incomplete, it solves issues for
> restoring/migration of real-world applications like nodejs, Oracle DB server
> which fails after being restored if there is a leap in monotonic time.

Well, yes. But you really have to think about the full picture. Just adding
part of the overall solution right now, just because it can be glued into
the code easily, is not the best approach IMO as it might result in
substantial rework of the whole thing sooner than later. I really don't
want to end up with something which is not extensible and has to be
supported forever.

Just for the record, the current approach with name space offsets for
monotonic is also prone to malfunction vs. timers, unless you can prevent
changing the offset _after_ the namespace has been set up and timers have
been armed. I admit, that I did not look close enough to verify that.

> While solving the mentioned issues, it doesn't bring overhead.
> (well, Andy noted that cmp for zero-offsets on vdso can be optimized too,
> which will be done in v1).
> 
> Thomas, thanks much for your input - now we know that we'll need to
> introduce list for timers in namespace when we'll add realtime clocks.
> Do you believe that CLOCK_MONOTONIC_SYNC would be an easier
> concept than offsets per-namespace?

Haven't thought it through. This was just an idea in reaction to Eric's
question whether setting clock monotonic might be feasible. But yes, it
might be worth to think about it.

I think you should really define the long term requirements for time
namespaces and perhaps set some limitations in functionality upfront.

Thanks,

	tglx



^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-02 20:06                       ` Thomas Gleixner
@ 2018-10-03  4:50                         ` Eric W. Biederman
  2018-10-03  5:25                           ` Thomas Gleixner
  0 siblings, 1 reply; 59+ messages in thread
From: Eric W. Biederman @ 2018-10-03  4:50 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Arnd Bergmann, avagin, dima, Linux Kernel Mailing List,
	0x7f454c46, adrian, Andy Lutomirski, Christian Brauner, gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov, xemul,
	Shuah Khan, containers, criu, Linux API,
	the arch/x86 maintainers, Alexey Dobriyan, linux-kselftest

Thomas Gleixner <tglx@linutronix.de> writes:

> On Tue, 2 Oct 2018, Arnd Bergmann wrote:
>> On Mon, Oct 1, 2018 at 8:53 PM Thomas Gleixner <tglx@linutronix.de> wrote:
>> >
>> > On Mon, 1 Oct 2018, Eric W. Biederman wrote:
>> > > In the context of process migration there is a simpler subproblem that I
>> > > think it is worth exploring if we can do something about.
>> > >
>> > > For a cluster of machines all running with synchronized
>> > > clocks. CLOCK_REALTIME matches. CLOCK_MONOTNIC does not match between
>> > > machines.   Not having a matching CLOCK_MONOTONIC prevents successful
>> > > process migration between nodes in that cluster.
>> > >
>> > > Would it be possible to allow setting CLOCK_MONOTONIC at the very
>> > > beginning of time?  So that all of the nodes in a cluster can be in
>> > > sync?
>> > >
>> > > No change in skew just in offset for CLOCK_MONOTONIC.
>> > >
>> > > There are also dragons involved in coordinating things so that
>> > > CLOCK_MONOTONIC gets set before CLOCK_MONOTONIC gets used.  So I don't
>> > > know if allowing CLOCK_MONOTONIC to be set would be practical but it
>> > > seems work exploring all on it's own.
>> >
>> > It's used very early on in the kernel, so that would be a major surprise
>> > for many things including user space which has expectations on clock
>> > monotonic.
>> >
>> > It would be reasonably easy to add CLOCK_MONONOTIC_SYNC which can be set in
>> > the way you described and then in name spaces make it possible to magically
>> > map CLOCK_MONOTONIC to CLOCK_MONOTONIC_SYNC.
>> >
>> > It still wouldn't allow to have different NTP/PTP time domains, but might
>> > be a good start to address the main migration headaches.
>> 
>> If we make CLOCK_MONOTONIC settable this way in a namespace,
>> do you think that should include device drivers that report timestamps
>> in CLOCK_MONOTONIC base, or only the timekeeping clock and timer
>> interfaces?
>
> Uurgh. That gets messy very fast.
>
>> Examples for drivers that can report timestamps are input, sound, v4l,
>> and drm. I think most of these can report stamps in either monotonic
>> or realtime base, while socket timestamps notably are always in
>> realtime.
>> 
>> We can probably get away with not setting the timebase for those
>> device drivers as long as the checkpoint/restart and migration features
>> are not expected to restore the state of an open character device
>> in that way. I don't know if that is a reasonable assumption to make
>> for the examples I listed.
>
> No idea. I'm not a container migration wizard.

Direct access to hardware/drivers and not through an abstraction like
the vfs (an abstraction over block devices) can legitimately be handled
by hotplug events.  I unplug one keyboard I plug in another.

I don't know if the input layer is more of a general abstraction
or more of a hardware device.  I have not dug into it but my guess
is abstraction from what I have heard.

The scary difficulty here is if after restart input is reporting times
in CLOCK_MONOTONIC and the applications in the namespace are talking
about times in CLOCK_MONOTONIC_SYNC.  Then there is an issue.  As even
with a fixed offset the times don't match up.

So a time namespace absolutely needs to do is figure out how to deal
with all of the kernel interfaces reporting times and figure out how to
report them in the current time namespace.

Eric







^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-03  4:50                         ` Eric W. Biederman
@ 2018-10-03  5:25                           ` Thomas Gleixner
  2018-10-03  6:14                             ` Eric W. Biederman
  2018-10-03  6:14                             ` Thomas Gleixner
  0 siblings, 2 replies; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-03  5:25 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Arnd Bergmann, avagin, dima, Linux Kernel Mailing List,
	0x7f454c46, adrian, Andy Lutomirski, Christian Brauner, gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov, xemul,
	Shuah Khan, containers, criu, Linux API,
	the arch/x86 maintainers, Alexey Dobriyan, linux-kselftest

On Wed, 3 Oct 2018, Eric W. Biederman wrote:
> Direct access to hardware/drivers and not through an abstraction like
> the vfs (an abstraction over block devices) can legitimately be handled
> by hotplug events.  I unplug one keyboard I plug in another.
> 
> I don't know if the input layer is more of a general abstraction
> or more of a hardware device.  I have not dug into it but my guess
> is abstraction from what I have heard.
> 
> The scary difficulty here is if after restart input is reporting times
> in CLOCK_MONOTONIC and the applications in the namespace are talking
> about times in CLOCK_MONOTONIC_SYNC.  Then there is an issue.  As even
> with a fixed offset the times don't match up.
> 
> So a time namespace absolutely needs to do is figure out how to deal
> with all of the kernel interfaces reporting times and figure out how to
> report them in the current time namespace.

So you want to talk to Arnd who is leading the y2038 effort. He knowns how
many and which interfaces are involved aside of the obvious core timer
ones. It's quite an amount and the problem is that you really need to do
that at the interface level, because many of those time stamps are taken in
contexts which are completely oblivious of name spaces. Ditto for timeouts
and similar things which are handed in through these interfaces.

Thanks,

	tglx




^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-03  5:25                           ` Thomas Gleixner
@ 2018-10-03  6:14                             ` Eric W. Biederman
  2018-10-03  7:02                               ` Arnd Bergmann
  2018-10-03  6:14                             ` Thomas Gleixner
  1 sibling, 1 reply; 59+ messages in thread
From: Eric W. Biederman @ 2018-10-03  6:14 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Arnd Bergmann, avagin, dima, Linux Kernel Mailing List,
	0x7f454c46, adrian, Andy Lutomirski, Christian Brauner, gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov, xemul,
	Shuah Khan, containers, criu, Linux API,
	the arch/x86 maintainers, Alexey Dobriyan, linux-kselftest

Thomas Gleixner <tglx@linutronix.de> writes:

> On Wed, 3 Oct 2018, Eric W. Biederman wrote:
>> Direct access to hardware/drivers and not through an abstraction like
>> the vfs (an abstraction over block devices) can legitimately be handled
>> by hotplug events.  I unplug one keyboard I plug in another.
>> 
>> I don't know if the input layer is more of a general abstraction
>> or more of a hardware device.  I have not dug into it but my guess
>> is abstraction from what I have heard.
>> 
>> The scary difficulty here is if after restart input is reporting times
>> in CLOCK_MONOTONIC and the applications in the namespace are talking
>> about times in CLOCK_MONOTONIC_SYNC.  Then there is an issue.  As even
>> with a fixed offset the times don't match up.
>> 
>> So a time namespace absolutely needs to do is figure out how to deal
>> with all of the kernel interfaces reporting times and figure out how to
>> report them in the current time namespace.
>
> So you want to talk to Arnd who is leading the y2038 effort. He knowns how
> many and which interfaces are involved aside of the obvious core timer
> ones. It's quite an amount and the problem is that you really need to do
> that at the interface level, because many of those time stamps are taken in
> contexts which are completely oblivious of name spaces. Ditto for timeouts
> and similar things which are handed in through these interfaces.

Yep.  That sounds right.

Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-03  5:25                           ` Thomas Gleixner
  2018-10-03  6:14                             ` Eric W. Biederman
@ 2018-10-03  6:14                             ` Thomas Gleixner
  1 sibling, 0 replies; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-03  6:14 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Arnd Bergmann, avagin, dima, Linux Kernel Mailing List,
	0x7f454c46, adrian, Andy Lutomirski, Christian Brauner, gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov, xemul,
	Shuah Khan, containers, criu, Linux API,
	the arch/x86 maintainers, Alexey Dobriyan, linux-kselftest

On Wed, 3 Oct 2018, Thomas Gleixner wrote:
> On Wed, 3 Oct 2018, Eric W. Biederman wrote:
> > Direct access to hardware/drivers and not through an abstraction like
> > the vfs (an abstraction over block devices) can legitimately be handled
> > by hotplug events.  I unplug one keyboard I plug in another.
> > 
> > I don't know if the input layer is more of a general abstraction
> > or more of a hardware device.  I have not dug into it but my guess
> > is abstraction from what I have heard.
> > 
> > The scary difficulty here is if after restart input is reporting times
> > in CLOCK_MONOTONIC and the applications in the namespace are talking
> > about times in CLOCK_MONOTONIC_SYNC.  Then there is an issue.  As even
> > with a fixed offset the times don't match up.
> > 
> > So a time namespace absolutely needs to do is figure out how to deal
> > with all of the kernel interfaces reporting times and figure out how to
> > report them in the current time namespace.
> 
> So you want to talk to Arnd who is leading the y2038 effort. He knowns how
> many and which interfaces are involved aside of the obvious core timer
> ones. It's quite an amount and the problem is that you really need to do
> that at the interface level, because many of those time stamps are taken in
> contexts which are completely oblivious of name spaces. Ditto for timeouts
> and similar things which are handed in through these interfaces.

Plus you have to make sure, that any new interface will have that
treatment. For y2038 that's easy as we just require to use timespec64 for
new ones. For your problem that's not so trivial.

Thanks,

	tglx

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: Setting monotonic time?
  2018-10-03  6:14                             ` Eric W. Biederman
@ 2018-10-03  7:02                               ` Arnd Bergmann
  0 siblings, 0 replies; 59+ messages in thread
From: Arnd Bergmann @ 2018-10-03  7:02 UTC (permalink / raw)
  To: Eric W . Biederman
  Cc: Thomas Gleixner, avagin, dima, Linux Kernel Mailing List,
	0x7f454c46, adrian, Andy Lutomirski, Christian Brauner, gorcunov,
	H. Peter Anvin, Ingo Molnar, Jeff Dike, Oleg Nesterov, xemul,
	Shuah Khan, containers, criu, Linux API,
	the arch/x86 maintainers, Alexey Dobriyan, linux-kselftest

On Wed, Oct 3, 2018 at 8:14 AM Eric W. Biederman <ebiederm@xmission.com> wrote:
>
> Thomas Gleixner <tglx@linutronix.de> writes:
>
> > On Wed, 3 Oct 2018, Eric W. Biederman wrote:
> >> Direct access to hardware/drivers and not through an abstraction like
> >> the vfs (an abstraction over block devices) can legitimately be handled
> >> by hotplug events.  I unplug one keyboard I plug in another.
> >>
> >> I don't know if the input layer is more of a general abstraction
> >> or more of a hardware device.  I have not dug into it but my guess
> >> is abstraction from what I have heard.
> >>
> >> The scary difficulty here is if after restart input is reporting times
> >> in CLOCK_MONOTONIC and the applications in the namespace are talking
> >> about times in CLOCK_MONOTONIC_SYNC.  Then there is an issue.  As even
> >> with a fixed offset the times don't match up.
> >>
> >> So a time namespace absolutely needs to do is figure out how to deal
> >> with all of the kernel interfaces reporting times and figure out how to
> >> report them in the current time namespace.
> >
> > So you want to talk to Arnd who is leading the y2038 effort. He knowns how
> > many and which interfaces are involved aside of the obvious core timer
> > ones. It's quite an amount and the problem is that you really need to do
> > that at the interface level, because many of those time stamps are taken in
> > contexts which are completely oblivious of name spaces. Ditto for timeouts
> > and similar things which are handed in through these interfaces.
>
> Yep.  That sounds right.

Let's stay with the input event example for the moment: Here, we have a
character device, and a user calls read() to retrieve one or more records
of type 'struct input_event' using the evdev_read() function. The original
timestamp gets put there using this logic:

        ktime_t time;
        struct timespec64 ts;
        time = client->clk_type == EV_CLK_REAL ?
                        ktime_get_real() :
                        client->clk_type == EV_CLK_MONO ?
                                ktime_get() :
                                ktime_get_boottime();
        ts = ktime_to_timespec64(time);
        ev.input_event_sec = ts.tv_sec;
        ev.input_event_usec = ts.tv_nsec / NSEC_PER_USEC;

clk_type can get set using an ioctl() to real, monotonic or
boottime. We have to stop using EV_CLK_REAL in the
future because that breaks in y2038, but I guess EV_CLK_MONO
and EV_CLK_BOOK should stay.

If we want this to work correctly in a namespace that has a
user defined CLOCK_MONOTONIC timebase, one way to
do it might be to always call ktime_get() when we record
the timestamp in the kernel-internal CLOCK_MONOTONIC
base, but then convert it to the correct base when copying to
user space.

Note that AFAIU practically all users of evdev do /not/ actually
care about the time base, they only care about the elapsed
time between intervals, e.g. to track how fast a pointer should
move based on input from a trackpad. I don't see any reason
why one would compare this timestamp to a clock_gettime()
value, but of course at the moment this has well-defined
behavior that would break if we change clock_gettime(), and
we have a process in the namespace that opens
/dev/input/eventX and relies on meaningful timestamps
relative to a particular base.

       Arnd

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-09-28 17:03             ` Eric W. Biederman
  2018-09-28 19:32               ` Thomas Gleixner
@ 2018-10-21  1:41               ` Andrei Vagin
  2018-10-21  3:54                 ` Andrei Vagin
  2018-10-29 20:33                 ` Thomas Gleixner
  1 sibling, 2 replies; 59+ messages in thread
From: Andrei Vagin @ 2018-10-21  1:41 UTC (permalink / raw)
  To: Eric W. Biederman, Thomas Gleixner
  Cc: linux-kselftest, Andrei Vagin, Dmitry Safonov, linux-api,
	Jeff Dike, x86, Dmitry Safonov, linux-kernel, Oleg Nesterov,
	criu, Ingo Molnar, Alexey Dobriyan, Andy Lutomirski,
	H. Peter Anvin, Cyrill Gorcunov, Christian Brauner,
	Pavel Emelianov, Shuah Khan, containers, Adrian Reber

On Fri, Sep 28, 2018 at 07:03:22PM +0200, Eric W. Biederman wrote:
> Thomas Gleixner <tglx@linutronix.de> writes:
> 
> > On Wed, 26 Sep 2018, Eric W. Biederman wrote:
> >> Reading the code the calling sequence there is:
> >> tick_sched_do_timer
> >>    tick_do_update_jiffies64
> >>       update_wall_time
> >>           timekeeping_advance
> >>              timekeepging_update
> >> 
> >> If I read that properly under the right nohz circumstances that update
> >> can be delayed indefinitely.
> >> 
> >> So I think we could prototype a time namespace that was per
> >> timekeeping_update and just had update_wall_time iterate through
> >> all of the time namespaces.
> >
> > Please don't go there. timekeeping_update() is already heavy and walking
> > through a gazillion of namespaces will just make it horrible,
> >
> >> I don't think the naive version would scale to very many time
> >> namespaces.
> >
> > :)
> >
> >> At the same time using the techniques from the nohz work and a little
> >> smarts I expect we could get the code to scale.
> >
> > You'd need to invoke the update when the namespace is switched in and
> > hasn't been updated since the last tick happened. That might be doable, but
> > you also need to take the wraparound constraints of the underlying
> > clocksources into account, which again can cause walking all name spaces
> > when they are all idle long enough.
> 
> The wrap around constraints being how long before the time sources wrap
> around so you have to read them once per wrap around?  I have not dug
> deeply enough into the code to see that yet.
> 
> > From there it becomes hairy, because it's not only timekeeping,
> > i.e. reading time, this is also affecting all timers which are armed from a
> > namespace.
> >
> > That gets really ugly because when you do settimeofday() or adjtimex() for
> > a particular namespace, then you have to search for all armed timers of
> > that namespace and adjust them.
> >
> > The original posix timer code had the same issue because it mapped the
> > clock realtime timers to the timer wheel so any setting of the clock caused
> > a full walk of all armed timers, disarming, adjusting and requeing
> > them. That's horrible not only performance wise, it's also a locking
> > nightmare of all sorts.
> >
> > Add time skew via NTP/PTP into the picture and you might have to adjust
> > timers as well, because you need to guarantee that they are not expiring
> > early.
> >
> > I haven't looked through Dimitry's patches yet, but I don't see how this
> > can work at all without introducing subtle issues all over the place.
> 
> Then it sounds like this will take some more digging.
> 
> Please pardon me for thinking out load.
> 
> There are one or more time sources that we use to compute the time
> and for each time source we have a conversion from ticks of the
> time source to nanoseconds.
> 
> Each time source needs to be sampled at least once per wrap-around
> and something incremented so that we don't loose time when looking
> at that time source.
> 
> There are several clocks presented to userspace and they all share the
> same length of second and are all fundamentally offsets from
> CLOCK_MONOTONIC.
> 
> I see two fundamental driving cases for a time namespace.
> 1) Migration from one node to another node in a cluster in almost
>    real time.
> 
>    The problem is that CLOCK_MONOTONIC between nodes in the cluster
>    has not relation ship to each other (except a synchronized length of
>    the second).  So applications that migrate can see CLOCK_MONOTONIC
>    and CLOCK_BOOTTIME go backwards.
> 
>    This is the truly pressing problem and adding some kind of offset
>    sounds like it would be the solution.  Possibly by allowing a boot
>    time synchronization of CLOCK_BOOTTIME and CLOCK_MONOTONIC.
> 
> 2) Dealing with two separate time management domains.  Say a machine
>    that needes to deal with both something inside of google where they
>    slew time to avoid leap time seconds and something in the outside
>    world proper UTC time is kept as an offset from TAI with the
>    occasional leap seconds.
> 
>    In the later case it would fundamentally require having seconds of
>    different length.
> 

I want to add that the second case should be optional.

When a container is migrated to another host, we have to restore its
monotonic and boottime clocks, but we still expect that the container
will continue using the host real-time clock.

Before stating this series, I was thinking about this, I decided that
these cases can be solved independently. Probably, the full isolation of
the time sub-system will have much higher overhead than just offsets for
a few clocks. And the idea that isolation of the real-time clock should
be optional gives us another hint that offsets for monotonic and
boot-time clocks can be implemented independently.

Eric and Tomas, what do you think about this? If you agree that these
two cases can be implemented separately, what should we do with this
series to make it ready to be merged?

I know that we need to:

* look at device drivers that report timestamps in CLOCK_MONOTONIC base.
* forbid changing offsets after creating timers

Anything else?

Thanks,
Andrei

> 
> A pure 64bit nanoseond counter is good for 500 years.  So 64bit
> variables can be used to hold time, and everything can be converted from
> there.
> 
> This suggests we can for ticks have two values.
> - The number of ticks from the time source.
> - The number of times the ticks would have rolled over.
> 
> That sounds like it may be a little simplistic as it would require being
> very diligent about firing a timer exactly at rollover and not losing
> that, but for a handwaving argument is probably enough to generate
> a 64bit tick counter.
> 
> If the focus is on a 64bit tick counter then what update_wall_time
> has to do is very limited.  Just deal the accounting needed to cope with
> tick rollover.
> 
> Getting the actual time looks like it would be as simple as now, with
> perhaps an extra addition to account for the number of times the tick
> counter has rolled over.  With limited precision arithmetic and various
> optimizations I don't think it is that simple to implement but it feels
> like it should be very little extra work.
> 
> For timers my inclination would be to assume no adjustments to the
> current time parameters and set the timer to go off then.   If the time
> on the appropriate clock has been changed since the timer was set and
> the timer is going off early reschedule so the timer fires at the
> appropriate time.
> 
> With the above I think it is theoretically possible to build a time
> namespace that supports multiple lengths of second, and does not have
> much overhead.
> 
> Not that I think a final implementation would necessary look like what I
> have described. I just think it is possible with extreme care to evolve
> the current code base into something that can efficiently handle
> multiple time domains with slightly different lenghts of second.
> 
> Thomas does it sound like I am completely out of touch with reality?
> 
> It does though sound like it is going to take some serious digging
> through the code to understand how what everything does and how and why
> everthing works the way it does.  Not something grafted on top with just
> a cursory understanding of how the code works.
> 
> Eric
> _______________________________________________
> Containers mailing list
> Containers@lists.linux-foundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/containers

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-10-21  1:41               ` [RFC 00/20] ns: Introduce Time Namespace Andrei Vagin
@ 2018-10-21  3:54                 ` Andrei Vagin
  2018-10-29 20:33                 ` Thomas Gleixner
  1 sibling, 0 replies; 59+ messages in thread
From: Andrei Vagin @ 2018-10-21  3:54 UTC (permalink / raw)
  To: Eric W. Biederman, Thomas Gleixner
  Cc: linux-kselftest, Dmitry Safonov, linux-api, Jeff Dike, x86,
	Dmitry Safonov, linux-kernel, Oleg Nesterov, criu, Ingo Molnar,
	Alexey Dobriyan, Andy Lutomirski, H. Peter Anvin,
	Cyrill Gorcunov, Christian Brauner, Pavel Emelianov, Shuah Khan,
	containers, Adrian Reber

On Sat, Oct 20, 2018 at 06:41:23PM -0700, Andrei Vagin wrote:
> On Fri, Sep 28, 2018 at 07:03:22PM +0200, Eric W. Biederman wrote:
> > Thomas Gleixner <tglx@linutronix.de> writes:
> > 
> > > On Wed, 26 Sep 2018, Eric W. Biederman wrote:
> > >> Reading the code the calling sequence there is:
> > >> tick_sched_do_timer
> > >>    tick_do_update_jiffies64
> > >>       update_wall_time
> > >>           timekeeping_advance
> > >>              timekeepging_update
> > >> 
> > >> If I read that properly under the right nohz circumstances that update
> > >> can be delayed indefinitely.
> > >> 
> > >> So I think we could prototype a time namespace that was per
> > >> timekeeping_update and just had update_wall_time iterate through
> > >> all of the time namespaces.
> > >
> > > Please don't go there. timekeeping_update() is already heavy and walking
> > > through a gazillion of namespaces will just make it horrible,
> > >
> > >> I don't think the naive version would scale to very many time
> > >> namespaces.
> > >
> > > :)
> > >
> > >> At the same time using the techniques from the nohz work and a little
> > >> smarts I expect we could get the code to scale.
> > >
> > > You'd need to invoke the update when the namespace is switched in and
> > > hasn't been updated since the last tick happened. That might be doable, but
> > > you also need to take the wraparound constraints of the underlying
> > > clocksources into account, which again can cause walking all name spaces
> > > when they are all idle long enough.
> > 
> > The wrap around constraints being how long before the time sources wrap
> > around so you have to read them once per wrap around?  I have not dug
> > deeply enough into the code to see that yet.
> > 
> > > From there it becomes hairy, because it's not only timekeeping,
> > > i.e. reading time, this is also affecting all timers which are armed from a
> > > namespace.
> > >
> > > That gets really ugly because when you do settimeofday() or adjtimex() for
> > > a particular namespace, then you have to search for all armed timers of
> > > that namespace and adjust them.
> > >
> > > The original posix timer code had the same issue because it mapped the
> > > clock realtime timers to the timer wheel so any setting of the clock caused
> > > a full walk of all armed timers, disarming, adjusting and requeing
> > > them. That's horrible not only performance wise, it's also a locking
> > > nightmare of all sorts.
> > >
> > > Add time skew via NTP/PTP into the picture and you might have to adjust
> > > timers as well, because you need to guarantee that they are not expiring
> > > early.
> > >
> > > I haven't looked through Dimitry's patches yet, but I don't see how this
> > > can work at all without introducing subtle issues all over the place.
> > 
> > Then it sounds like this will take some more digging.
> > 
> > Please pardon me for thinking out load.
> > 
> > There are one or more time sources that we use to compute the time
> > and for each time source we have a conversion from ticks of the
> > time source to nanoseconds.
> > 
> > Each time source needs to be sampled at least once per wrap-around
> > and something incremented so that we don't loose time when looking
> > at that time source.
> > 
> > There are several clocks presented to userspace and they all share the
> > same length of second and are all fundamentally offsets from
> > CLOCK_MONOTONIC.
> > 
> > I see two fundamental driving cases for a time namespace.
> > 1) Migration from one node to another node in a cluster in almost
> >    real time.
> > 
> >    The problem is that CLOCK_MONOTONIC between nodes in the cluster
> >    has not relation ship to each other (except a synchronized length of
> >    the second).  So applications that migrate can see CLOCK_MONOTONIC
> >    and CLOCK_BOOTTIME go backwards.
> > 
> >    This is the truly pressing problem and adding some kind of offset
> >    sounds like it would be the solution.  Possibly by allowing a boot
> >    time synchronization of CLOCK_BOOTTIME and CLOCK_MONOTONIC.
> > 
> > 2) Dealing with two separate time management domains.  Say a machine
> >    that needes to deal with both something inside of google where they
> >    slew time to avoid leap time seconds and something in the outside
> >    world proper UTC time is kept as an offset from TAI with the
> >    occasional leap seconds.
> > 
> >    In the later case it would fundamentally require having seconds of
> >    different length.
> > 
> 
> I want to add that the second case should be optional.
> 
> When a container is migrated to another host, we have to restore its
> monotonic and boottime clocks, but we still expect that the container
> will continue using the host real-time clock.
> 
> Before stating this series, I was thinking about this, I decided that
> these cases can be solved independently. Probably, the full isolation of
> the time sub-system will have much higher overhead than just offsets for
> a few clocks. And the idea that isolation of the real-time clock should
> be optional gives us another hint that offsets for monotonic and
> boot-time clocks can be implemented independently.
> 
> Eric and Tomas, what do you think about this? If you agree that these

Sorry Thomas, I mistyped your name.

> two cases can be implemented separately, what should we do with this
> series to make it ready to be merged?
> 
> I know that we need to:
> 
> * look at device drivers that report timestamps in CLOCK_MONOTONIC base.
> * forbid changing offsets after creating timers
> 
> Anything else?
> 
> Thanks,
> Andrei
> 
> > 
> > A pure 64bit nanoseond counter is good for 500 years.  So 64bit
> > variables can be used to hold time, and everything can be converted from
> > there.
> > 
> > This suggests we can for ticks have two values.
> > - The number of ticks from the time source.
> > - The number of times the ticks would have rolled over.
> > 
> > That sounds like it may be a little simplistic as it would require being
> > very diligent about firing a timer exactly at rollover and not losing
> > that, but for a handwaving argument is probably enough to generate
> > a 64bit tick counter.
> > 
> > If the focus is on a 64bit tick counter then what update_wall_time
> > has to do is very limited.  Just deal the accounting needed to cope with
> > tick rollover.
> > 
> > Getting the actual time looks like it would be as simple as now, with
> > perhaps an extra addition to account for the number of times the tick
> > counter has rolled over.  With limited precision arithmetic and various
> > optimizations I don't think it is that simple to implement but it feels
> > like it should be very little extra work.
> > 
> > For timers my inclination would be to assume no adjustments to the
> > current time parameters and set the timer to go off then.   If the time
> > on the appropriate clock has been changed since the timer was set and
> > the timer is going off early reschedule so the timer fires at the
> > appropriate time.
> > 
> > With the above I think it is theoretically possible to build a time
> > namespace that supports multiple lengths of second, and does not have
> > much overhead.
> > 
> > Not that I think a final implementation would necessary look like what I
> > have described. I just think it is possible with extreme care to evolve
> > the current code base into something that can efficiently handle
> > multiple time domains with slightly different lenghts of second.
> > 
> > Thomas does it sound like I am completely out of touch with reality?
> > 
> > It does though sound like it is going to take some serious digging
> > through the code to understand how what everything does and how and why
> > everthing works the way it does.  Not something grafted on top with just
> > a cursory understanding of how the code works.
> > 
> > Eric
> > _______________________________________________
> > Containers mailing list
> > Containers@lists.linux-foundation.org
> > https://lists.linuxfoundation.org/mailman/listinfo/containers

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-10-21  1:41               ` [RFC 00/20] ns: Introduce Time Namespace Andrei Vagin
  2018-10-21  3:54                 ` Andrei Vagin
@ 2018-10-29 20:33                 ` Thomas Gleixner
  2018-10-29 21:21                   ` Eric W. Biederman
  2018-10-31 16:26                   ` Andrei Vagin
  1 sibling, 2 replies; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-29 20:33 UTC (permalink / raw)
  To: Andrei Vagin
  Cc: Eric W. Biederman, linux-kselftest, Dmitry Safonov, linux-api,
	Jeff Dike, x86, Dmitry Safonov, linux-kernel, Oleg Nesterov,
	criu, Ingo Molnar, Alexey Dobriyan, Andy Lutomirski,
	H. Peter Anvin, Cyrill Gorcunov, Christian Brauner,
	Pavel Emelianov, Shuah Khan, containers, Adrian Reber,
	Peter Zijlstra

Andrei,

On Sat, 20 Oct 2018, Andrei Vagin wrote:
> When a container is migrated to another host, we have to restore its
> monotonic and boottime clocks, but we still expect that the container
> will continue using the host real-time clock.
> 
> Before stating this series, I was thinking about this, I decided that
> these cases can be solved independently. Probably, the full isolation of
> the time sub-system will have much higher overhead than just offsets for
> a few clocks. And the idea that isolation of the real-time clock should
> be optional gives us another hint that offsets for monotonic and
> boot-time clocks can be implemented independently.
> 
> Eric and Tomas, what do you think about this? If you agree that these
> two cases can be implemented separately, what should we do with this
> series to make it ready to be merged?
> 
> I know that we need to:
> 
> * look at device drivers that report timestamps in CLOCK_MONOTONIC base.

and CLOCK_BOOTTIME and that's quite a few.

> * forbid changing offsets after creating timers

There are more things to think about. What about interfaces which expose
boot time or monotonic time in /proc?

Aside of that (I finally came around to look at the series in more detail)
I'm really unhappy about the unconditional overhead once the Time namespace
config switch is enabled. This applies especially to the VDSO. We spent
quite some time recently to squeeze a few cycles out of those functions and
it would be a pity to pointlessly waste cycles for the !namespace case.

I can see the urge for this, but please let us think it through properly
before rushing anything in which we are going to regret once we want to do
more sophisticated time domain management, e.g. support for isolated clock
real time. I'm worried, that without a clear plan about the overall
picture, we end up with duct tape which is hard to distangle after the
fact.

There have been a few other things brought up versus time management in
general, like the TSN folks utilizing grand clock masters which expose
random time instead of proper TAI. Plus some requirements for exposing some
sort of 'monotonic' clocks which are derived from external synchronization
mechanisms, but should not affect the regular time keeping clocks.

While different issues, these all fall into the category of separate time
domains, so taking a step back to the drawing board is probably the best
thing what we can do now.

There are certainly a few things which can be looked at independently,
e.g. the VDSO mechanics or general mechanisms to avoid plastering the whole
kernel with these name space functions applying offsets left and right. I
rather have dedicated core functionality which replaces/amends existing
timer functions to become time namespace aware.

I'll try to find some time in the next weeks to look deeper into that, but
I can't promise anything before returning from LPC. Btw, LPC would be a
great opportunity to discuss that. Are you and the other name space wizards
there by any chance?

Thanks,

	tglx



^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-10-29 20:33                 ` Thomas Gleixner
@ 2018-10-29 21:21                   ` Eric W. Biederman
  2018-10-29 21:36                     ` Thomas Gleixner
  2018-10-31 16:26                   ` Andrei Vagin
  1 sibling, 1 reply; 59+ messages in thread
From: Eric W. Biederman @ 2018-10-29 21:21 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Andrei Vagin, linux-kselftest, Dmitry Safonov, linux-api,
	Jeff Dike, x86, Dmitry Safonov, linux-kernel, Oleg Nesterov,
	criu, Ingo Molnar, Alexey Dobriyan, Andy Lutomirski,
	H. Peter Anvin, Cyrill Gorcunov, Christian Brauner,
	Pavel Emelianov, Shuah Khan, containers, Adrian Reber,
	Peter Zijlstra

Thomas Gleixner <tglx@linutronix.de> writes:

> Andrei,
>
> On Sat, 20 Oct 2018, Andrei Vagin wrote:
>> When a container is migrated to another host, we have to restore its
>> monotonic and boottime clocks, but we still expect that the container
>> will continue using the host real-time clock.
>> 
>> Before stating this series, I was thinking about this, I decided that
>> these cases can be solved independently. Probably, the full isolation of
>> the time sub-system will have much higher overhead than just offsets for
>> a few clocks. And the idea that isolation of the real-time clock should
>> be optional gives us another hint that offsets for monotonic and
>> boot-time clocks can be implemented independently.
>> 
>> Eric and Tomas, what do you think about this? If you agree that these
>> two cases can be implemented separately, what should we do with this
>> series to make it ready to be merged?
>> 
>> I know that we need to:
>> 
>> * look at device drivers that report timestamps in CLOCK_MONOTONIC base.
>
> and CLOCK_BOOTTIME and that's quite a few.
>
>> * forbid changing offsets after creating timers
>
> There are more things to think about. What about interfaces which expose
> boot time or monotonic time in /proc?
>
> Aside of that (I finally came around to look at the series in more detail)
> I'm really unhappy about the unconditional overhead once the Time namespace
> config switch is enabled. This applies especially to the VDSO. We spent
> quite some time recently to squeeze a few cycles out of those functions and
> it would be a pity to pointlessly waste cycles for the !namespace case.
>
> I can see the urge for this, but please let us think it through properly
> before rushing anything in which we are going to regret once we want to do
> more sophisticated time domain management, e.g. support for isolated clock
> real time. I'm worried, that without a clear plan about the overall
> picture, we end up with duct tape which is hard to distangle after the
> fact.
>
> There have been a few other things brought up versus time management in
> general, like the TSN folks utilizing grand clock masters which expose
> random time instead of proper TAI. Plus some requirements for exposing some
> sort of 'monotonic' clocks which are derived from external synchronization
> mechanisms, but should not affect the regular time keeping clocks.
>
> While different issues, these all fall into the category of separate time
> domains, so taking a step back to the drawing board is probably the best
> thing what we can do now.
>
> There are certainly a few things which can be looked at independently,
> e.g. the VDSO mechanics or general mechanisms to avoid plastering the whole
> kernel with these name space functions applying offsets left and right. I
> rather have dedicated core functionality which replaces/amends existing
> timer functions to become time namespace aware.
>
> I'll try to find some time in the next weeks to look deeper into that, but
> I can't promise anything before returning from LPC. Btw, LPC would be a
> great opportunity to discuss that. Are you and the other name space wizards
> there by any chance?

I will be and there are going to be both container and CRIU
mini-conferences.  So there should at least some of us around.

Eric

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-10-29 21:21                   ` Eric W. Biederman
@ 2018-10-29 21:36                     ` Thomas Gleixner
  0 siblings, 0 replies; 59+ messages in thread
From: Thomas Gleixner @ 2018-10-29 21:36 UTC (permalink / raw)
  To: Eric W. Biederman
  Cc: Andrei Vagin, linux-kselftest, Dmitry Safonov, linux-api,
	Jeff Dike, x86, Dmitry Safonov, linux-kernel, Oleg Nesterov,
	criu, Ingo Molnar, Alexey Dobriyan, Andy Lutomirski,
	H. Peter Anvin, Cyrill Gorcunov, Christian Brauner,
	Pavel Emelianov, Shuah Khan, containers, Adrian Reber,
	Peter Zijlstra

Eric,

On Mon, 29 Oct 2018, Eric W. Biederman wrote:
> Thomas Gleixner <tglx@linutronix.de> writes:
> >
> > I'll try to find some time in the next weeks to look deeper into that, but
> > I can't promise anything before returning from LPC. Btw, LPC would be a
> > great opportunity to discuss that. Are you and the other name space wizards
> > there by any chance?
> 
> I will be and there are going to be both container and CRIU
> mini-conferences.  So there should at least some of us around.

So let's try to find a slot for a BOF or similar (there might be still
slots for the kernel summit available, i'll ask).

Thanks,

	tglx

^ permalink raw reply	[flat|nested] 59+ messages in thread

* Re: [RFC 00/20] ns: Introduce Time Namespace
  2018-10-29 20:33                 ` Thomas Gleixner
  2018-10-29 21:21                   ` Eric W. Biederman
@ 2018-10-31 16:26                   ` Andrei Vagin
  1 sibling, 0 replies; 59+ messages in thread
From: Andrei Vagin @ 2018-10-31 16:26 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Eric W. Biederman, linux-kselftest, Dmitry Safonov, linux-api,
	Jeff Dike, x86, Dmitry Safonov, linux-kernel, Oleg Nesterov,
	criu, Ingo Molnar, Alexey Dobriyan, Andy Lutomirski,
	H. Peter Anvin, Cyrill Gorcunov, Christian Brauner,
	Pavel Emelianov, Shuah Khan, containers, Adrian Reber,
	Peter Zijlstra

On Mon, Oct 29, 2018 at 09:33:14PM +0100, Thomas Gleixner wrote:
> Andrei,
> 
> On Sat, 20 Oct 2018, Andrei Vagin wrote:
> > When a container is migrated to another host, we have to restore its
> > monotonic and boottime clocks, but we still expect that the container
> > will continue using the host real-time clock.
> > 
> > Before stating this series, I was thinking about this, I decided that
> > these cases can be solved independently. Probably, the full isolation of
> > the time sub-system will have much higher overhead than just offsets for
> > a few clocks. And the idea that isolation of the real-time clock should
> > be optional gives us another hint that offsets for monotonic and
> > boot-time clocks can be implemented independently.
> > 
> > Eric and Tomas, what do you think about this? If you agree that these
> > two cases can be implemented separately, what should we do with this
> > series to make it ready to be merged?
> > 
> > I know that we need to:
> > 
> > * look at device drivers that report timestamps in CLOCK_MONOTONIC base.
> 
> and CLOCK_BOOTTIME and that's quite a few.
> 
> > * forbid changing offsets after creating timers
> 
> There are more things to think about. What about interfaces which expose
> boot time or monotonic time in /proc?

We didn't find any proc files where boot or monotonic time is reported,
but we will double check this.

> 
> Aside of that (I finally came around to look at the series in more detail)
> I'm really unhappy about the unconditional overhead once the Time namespace
> config switch is enabled. This applies especially to the VDSO. We spent
> quite some time recently to squeeze a few cycles out of those functions and
> it would be a pity to pointlessly waste cycles for the !namespace case.

It is a good point. We will work on it.

> 
> I can see the urge for this, but please let us think it through properly
> before rushing anything in which we are going to regret once we want to do
> more sophisticated time domain management, e.g. support for isolated clock
> real time. I'm worried, that without a clear plan about the overall
> picture, we end up with duct tape which is hard to distangle after the
> fact.

Thomas, there is no rush at all. This functionality is critical for
CRUI, but we have enough time to solve it properly.

The only thing what I want is that this functionality continues moving
forward and will not be put in the back burner.

> 
> There have been a few other things brought up versus time management in
> general, like the TSN folks utilizing grand clock masters which expose
> random time instead of proper TAI. Plus some requirements for exposing some
> sort of 'monotonic' clocks which are derived from external synchronization
> mechanisms, but should not affect the regular time keeping clocks.
> 
> While different issues, these all fall into the category of separate time
> domains, so taking a step back to the drawing board is probably the best
> thing what we can do now.
> 
> There are certainly a few things which can be looked at independently,
> e.g. the VDSO mechanics or general mechanisms to avoid plastering the whole
> kernel with these name space functions applying offsets left and right. I
> rather have dedicated core functionality which replaces/amends existing
> timer functions to become time namespace aware.
> 
> I'll try to find some time in the next weeks to look deeper into that, but
> I can't promise anything before returning from LPC. Btw, LPC would be a
> great opportunity to discuss that. Are you and the other name space wizards
> there by any chance?

Dmitry and I are going to be there.

Thanks!
Andrei

> 
> Thanks,
> 
> 	tglx
> 
> 

^ permalink raw reply	[flat|nested] 59+ messages in thread

end of thread, other threads:[~2018-10-31 16:27 UTC | newest]

Thread overview: 59+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-09-19 20:50 [RFC 00/20] ns: Introduce Time Namespace Dmitry Safonov
2018-09-19 20:50 ` [RFC 01/20] " Dmitry Safonov
2018-09-28 18:20   ` Laurent Vivier
2018-09-19 20:50 ` [RFC 02/20] timens: Add timens_offsets Dmitry Safonov
2018-09-20 18:45   ` Cyrill Gorcunov
2018-09-20 22:14     ` Cyrill Gorcunov
2018-09-19 20:50 ` [RFC 03/20] timens: Introduce CLOCK_MONOTONIC offsets Dmitry Safonov
2018-09-19 20:50 ` [RFC 04/20] timens: Introduce CLOCK_BOOTTIME offset Dmitry Safonov
2018-09-30  3:18   ` [LKP] [timens] 3cc8de9dcb: RIP:posix_get_boottime kernel test robot
2018-09-19 20:50 ` [RFC 05/20] timerfd/timens: Take into account ns clock offsets Dmitry Safonov
2018-09-19 20:50 ` [RFC 06/20] kernel: Take into account timens clock offsets in clock_nanosleep Dmitry Safonov
2018-09-19 20:50 ` [RFC 07/20] timens: Shift /proc/uptime Dmitry Safonov
2018-09-19 20:50 ` [RFC 08/20] x86/vdso: Restrict splitting vvar vma Dmitry Safonov
2018-09-19 20:50 ` [RFC 09/20] x86/vdso/timens: Add offsets page in vvar Dmitry Safonov
2018-09-19 20:50 ` [RFC 10/20] x86/vdso: Use set_normalized_timespec() to avoid 32 bit overflow Dmitry Safonov
2018-09-19 20:50 ` [RFC 11/20] x86/vdso: Purge timens page on setns()/unshare()/clone() Dmitry Safonov
2018-09-19 20:50 ` [RFC 12/20] x86/vdso: Look for vvar vma to purge timens page Dmitry Safonov
2018-09-19 20:50 ` [RFC 13/20] posix-timers/timens: Take into account clock offsets Dmitry Safonov
2018-09-30  3:11   ` [LKP] [posix] 25217c6e39: BUG:KASAN:null-ptr-deref_in_c kernel test robot
2018-09-19 20:50 ` [RFC 14/20] timens: Add align for timens_offsets Dmitry Safonov
2018-09-19 20:50 ` [RFC 15/20] timens: Optimize zero-offsets Dmitry Safonov
2018-09-19 20:50 ` [RFC 16/20] selftest: Add Time Namespace test for supported clocks Dmitry Safonov
2018-09-24 21:36   ` Shuah Khan
2018-09-19 20:50 ` [RFC 17/20] selftest/timens: Add test for timerfd Dmitry Safonov
2018-09-19 20:50 ` [RFC 18/20] selftest/timens: Add test for clock_nanosleep Dmitry Safonov
2018-09-19 20:50 ` [RFC 19/20] timens/selftest: Add procfs selftest Dmitry Safonov
2018-09-19 20:50 ` [RFC 20/20] timens/selftest: Add timer offsets test Dmitry Safonov
2018-09-21 12:27 ` [RFC 00/20] ns: Introduce Time Namespace Eric W. Biederman
2018-09-24 20:51   ` Andrey Vagin
2018-09-24 22:02     ` Eric W. Biederman
2018-09-25  1:42       ` Andrey Vagin
2018-09-26 17:36         ` Eric W. Biederman
2018-09-26 17:59           ` Dmitry Safonov
2018-09-27 21:30           ` Thomas Gleixner
2018-09-27 21:41             ` Thomas Gleixner
2018-10-01 23:20               ` Andrey Vagin
2018-10-02  6:15                 ` Thomas Gleixner
2018-10-02 21:05                   ` Dmitry Safonov
2018-10-02 21:26                     ` Thomas Gleixner
2018-09-28 17:03             ` Eric W. Biederman
2018-09-28 19:32               ` Thomas Gleixner
2018-10-01  9:05                 ` Eric W. Biederman
2018-10-01  9:15                 ` Setting monotonic time? Eric W. Biederman
2018-10-01 18:52                   ` Thomas Gleixner
2018-10-02 20:00                     ` Arnd Bergmann
2018-10-02 20:06                       ` Thomas Gleixner
2018-10-03  4:50                         ` Eric W. Biederman
2018-10-03  5:25                           ` Thomas Gleixner
2018-10-03  6:14                             ` Eric W. Biederman
2018-10-03  7:02                               ` Arnd Bergmann
2018-10-03  6:14                             ` Thomas Gleixner
2018-10-01 20:51                   ` Andrey Vagin
2018-10-02  6:16                     ` Thomas Gleixner
2018-10-21  1:41               ` [RFC 00/20] ns: Introduce Time Namespace Andrei Vagin
2018-10-21  3:54                 ` Andrei Vagin
2018-10-29 20:33                 ` Thomas Gleixner
2018-10-29 21:21                   ` Eric W. Biederman
2018-10-29 21:36                     ` Thomas Gleixner
2018-10-31 16:26                   ` Andrei Vagin

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