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From: Gavin Shan <gshan@redhat.com>
To: kvmarm@lists.cs.columbia.edu
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
james.morse@arm.com, mark.rutland@arm.com,
Jonathan.Cameron@huawei.com, will@kernel.org, maz@kernel.org,
pbonzini@redhat.com, vkuznets@redhat.com, shan.gavin@gmail.com
Subject: [PATCH v4 06/15] KVM: arm64: Add paravirtualization header files
Date: Sun, 15 Aug 2021 08:59:38 +0800 [thread overview]
Message-ID: <20210815005947.83699-7-gshan@redhat.com> (raw)
In-Reply-To: <20210815005947.83699-1-gshan@redhat.com>
We need put more stuff in the paravirtualization header files when
the asynchronous page fault is supported. The generic header files
can't meet the goal. This duplicate the generic header files to be
our platform specific header files. It's the preparatory work to
support the asynchronous page fault in the subsequent patches:
include/uapi/asm-generic/kvm_para.h
include/asm-generic/kvm_para.h
arch/arm64/include/uapi/asm/kvm_para.h
arch/arm64/include/asm/kvm_para.h
Signed-off-by: Gavin Shan <gshan@redhat.com>
---
arch/arm64/include/asm/kvm_para.h | 27 ++++++++++++++++++++++++++
arch/arm64/include/uapi/asm/Kbuild | 2 --
arch/arm64/include/uapi/asm/kvm_para.h | 5 +++++
3 files changed, 32 insertions(+), 2 deletions(-)
create mode 100644 arch/arm64/include/asm/kvm_para.h
create mode 100644 arch/arm64/include/uapi/asm/kvm_para.h
diff --git a/arch/arm64/include/asm/kvm_para.h b/arch/arm64/include/asm/kvm_para.h
new file mode 100644
index 000000000000..0ea481dd1c7a
--- /dev/null
+++ b/arch/arm64/include/asm/kvm_para.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ARM_KVM_PARA_H
+#define _ASM_ARM_KVM_PARA_H
+
+#include <uapi/asm/kvm_para.h>
+
+static inline bool kvm_check_and_clear_guest_paused(void)
+{
+ return false;
+}
+
+static inline unsigned int kvm_arch_para_features(void)
+{
+ return 0;
+}
+
+static inline unsigned int kvm_arch_para_hints(void)
+{
+ return 0;
+}
+
+static inline bool kvm_para_available(void)
+{
+ return false;
+}
+
+#endif /* _ASM_ARM_KVM_PARA_H */
diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
index 602d137932dc..f66554cd5c45 100644
--- a/arch/arm64/include/uapi/asm/Kbuild
+++ b/arch/arm64/include/uapi/asm/Kbuild
@@ -1,3 +1 @@
# SPDX-License-Identifier: GPL-2.0
-
-generic-y += kvm_para.h
diff --git a/arch/arm64/include/uapi/asm/kvm_para.h b/arch/arm64/include/uapi/asm/kvm_para.h
new file mode 100644
index 000000000000..cd212282b90c
--- /dev/null
+++ b/arch/arm64/include/uapi/asm/kvm_para.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_ARM_KVM_PARA_H
+#define _UAPI_ASM_ARM_KVM_PARA_H
+
+#endif /* _UAPI_ASM_ARM_KVM_PARA_H */
--
2.23.0
next prev parent reply other threads:[~2021-08-15 1:02 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-15 0:59 [PATCH v4 00/15] Support Asynchronous Page Fault Gavin Shan
2021-08-15 0:59 ` [PATCH v4 01/15] KVM: async_pf: Move struct kvm_async_pf around Gavin Shan
2021-11-10 15:37 ` Eric Auger
2022-01-13 7:21 ` Gavin Shan
2021-08-15 0:59 ` [PATCH v4 02/15] KVM: async_pf: Add helper function to check completion queue Gavin Shan
2021-08-16 16:53 ` Vitaly Kuznetsov
2021-08-17 10:44 ` Gavin Shan
2021-11-10 15:37 ` Eric Auger
2022-01-13 7:38 ` Gavin Shan
2021-08-15 0:59 ` [PATCH v4 03/15] KVM: async_pf: Make GFN slot management generic Gavin Shan
2021-11-10 17:00 ` Eric Auger
2022-01-13 7:42 ` Gavin Shan
2021-11-10 17:00 ` Eric Auger
2021-08-15 0:59 ` [PATCH v4 04/15] KVM: x86: Use generic async PF slot management Gavin Shan
2021-11-10 17:03 ` Eric Auger
2022-01-13 7:44 ` Gavin Shan
2021-08-15 0:59 ` [PATCH v4 05/15] KVM: arm64: Export kvm_handle_user_mem_abort() Gavin Shan
2021-11-10 18:02 ` Eric Auger
2022-01-13 7:55 ` Gavin Shan
2021-08-15 0:59 ` Gavin Shan [this message]
2021-11-10 18:06 ` [PATCH v4 06/15] KVM: arm64: Add paravirtualization header files Eric Auger
2022-01-13 8:00 ` Gavin Shan
2021-08-15 0:59 ` [PATCH v4 07/15] KVM: arm64: Support page-not-present notification Gavin Shan
2021-11-12 15:01 ` Eric Auger
2022-01-13 8:43 ` Gavin Shan
2021-08-15 0:59 ` [PATCH v4 08/15] KVM: arm64: Support page-ready notification Gavin Shan
2021-08-15 0:59 ` [PATCH v4 09/15] KVM: arm64: Support async PF hypercalls Gavin Shan
2021-08-15 0:59 ` [PATCH v4 10/15] KVM: arm64: Support async PF ioctl commands Gavin Shan
2021-08-15 0:59 ` [PATCH v4 11/15] KVM: arm64: Export async PF capability Gavin Shan
2021-08-15 0:59 ` [PATCH v4 12/15] arm64: Detect async PF para-virtualization feature Gavin Shan
2021-08-15 0:59 ` [PATCH v4 13/15] arm64: Reschedule process on aync PF Gavin Shan
2021-08-15 0:59 ` [PATCH v4 14/15] arm64: Enable async PF Gavin Shan
2021-08-16 17:05 ` Vitaly Kuznetsov
2021-08-17 10:49 ` Gavin Shan
2021-08-15 0:59 ` [PATCH v4 15/15] KVM: arm64: Add async PF document Gavin Shan
2021-11-11 10:39 ` Eric Auger
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