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* [RFC v4 0/2] x86/xen: add xen hypercall preemption
@ 2015-01-23  0:29 Luis R. Rodriguez
  2015-01-23  0:29 ` [RFC v4 1/2] x86/xen: add xen_is_preemptible_hypercall() Luis R. Rodriguez
                   ` (2 more replies)
  0 siblings, 3 replies; 16+ messages in thread
From: Luis R. Rodriguez @ 2015-01-23  0:29 UTC (permalink / raw)
  To: david.vrabel, konrad.wilk, boris.ostrovsky, xen-devel
  Cc: linux-kernel, x86, kvm, paulmck, rostedt, Luis R. Rodriguez

From: "Luis R. Rodriguez" <mcgrof@suse.com>

This v4 addresses some of the cleanups recommended and adds
tracing option for when we do actually preempt a hypercall.
I kept the NOKPROBE_SYMBOL() for now but did remove the 'notrace'
stuff.

This goes out as RFC still as I have not been able to test 32-bit.
Can anyone test that or at least confirm that the 32-bit point
we do the upcall is definitely not on the IRQ stack?

Luis R. Rodriguez (2):
  x86/xen: add xen_is_preemptible_hypercall()
  x86/xen: allow privcmd hypercalls to be preempted

 arch/arm/include/asm/xen/hypercall.h |  5 +++++
 arch/x86/include/asm/xen/hypercall.h | 20 ++++++++++++++++++++
 arch/x86/kernel/entry_32.S           |  2 ++
 arch/x86/kernel/entry_64.S           |  2 ++
 arch/x86/xen/enlighten.c             |  7 +++++++
 arch/x86/xen/xen-head.S              | 18 +++++++++++++++++-
 drivers/xen/events/events_base.c     | 23 +++++++++++++++++++++++
 include/trace/events/xen.h           |  9 +++++++++
 include/xen/events.h                 |  1 +
 9 files changed, 86 insertions(+), 1 deletion(-)

-- 
2.1.1


^ permalink raw reply	[flat|nested] 16+ messages in thread

end of thread, other threads:[~2015-01-27  1:46 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-01-23  0:29 [RFC v4 0/2] x86/xen: add xen hypercall preemption Luis R. Rodriguez
2015-01-23  0:29 ` [RFC v4 1/2] x86/xen: add xen_is_preemptible_hypercall() Luis R. Rodriguez
2015-01-23  1:40   ` Andy Lutomirski
2015-01-27  1:45     ` Luis R. Rodriguez
2015-01-23 11:30   ` [Xen-devel] " David Vrabel
2015-01-23 18:57     ` Luis R. Rodriguez
2015-01-23  0:29 ` [RFC v4 2/2] x86/xen: allow privcmd hypercalls to be preempted Luis R. Rodriguez
2015-01-23  1:40   ` Andy Lutomirski
2015-01-23  1:57     ` Steven Rostedt
2015-01-23 11:45   ` [Xen-devel] " David Vrabel
2015-01-23 18:58     ` Luis R. Rodriguez
2015-01-26 10:46       ` Jan Beulich
2015-01-26 10:47       ` David Vrabel
2015-01-23 19:16     ` Luis R. Rodriguez
2015-01-23 11:51 ` [Xen-devel] [RFC v4 0/2] x86/xen: add xen hypercall preemption David Vrabel
2015-01-23 18:58   ` Luis R. Rodriguez

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