[Xen-devel] [PATCH 0/2] Two VPMU/watchdog-related patches

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

The first patch is to disable VPMU when watchdog is on since both are using
APIC_LVTPC register and VPMU, when running, will overwrite watchdog's settings.

The second patch is update to the earlier (reverted) commit 8097616. We prevent
guests's updates to APIC_LVTPC when VPMU is disabled. Without this a guest may
redirect a watchdog interrupt to VPMU which will not be able to handle it.

I will need to update a couple of later patches in the VPMU series to keep this
logic. Jan, Andrew --- do you want me to resend the whole series again or only
unapplied patches (and keep original numbering)?

Boris Ostrovsky (2):
  x86/VPMU: Disable VPMU when NMI watchdog is on
  x86/VPMU: Handle APIC_LVTPC accesses

 xen/arch/x86/hvm/svm/vpmu.c       |  4 ----
 xen/arch/x86/hvm/vlapic.c         |  3 +++
 xen/arch/x86/hvm/vmx/vpmu_core2.c | 17 -----------------
 xen/arch/x86/hvm/vpmu.c           | 22 +++++++++++++++++++++-
 xen/arch/x86/nmi.c                | 10 +++++++++-
 xen/include/asm-x86/hvm/vpmu.h    |  2 ++
 6 files changed, 35 insertions(+), 23 deletions(-)

-- 
1.8.1.4


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