[Xen-devel] [PATCH v2 0/2] Be more strict about writing to Intel VPMU registers

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

* Add more checks when writing VPMU control registers
* Explicitly disable PEBS since calculating reserved bits in 
MSR_IA32_PEBS_ENABLE
  is somewhat non-trivial (and pointless since PEBS is not supported)


Boris Ostrovsky (2):
  x86/VPMU: Check more carefully which bits are allowed to be written
    to MSRs
  x86/VPMU: Don't allow any non-zero writes to MSR_IA32_PEBS_ENABLE

 xen/arch/x86/cpu/vpmu_intel.c |   31 ++++++++++++++++++++++---------
 1 files changed, 22 insertions(+), 9 deletions(-)


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