[PATCH 0/2] KVM: x86/pmu: do not mask the value that is written to fixed PMUs

From: Paolo Bonzini
Date: Mon May 20 2019 - 11:45:02 EST


The first patch is a small refactoring to enforce masking of values
returned by RDPMC and RDMSR. The second patch fix pmu_intel.c to
behave the same as real hardware; this fixes the failing tests
introduced in kvm-unit-tests by "x86: PMU: Fix PMU counters masking".

(Nadav, this is just FYI. I am not CCing you on individual patches
to avoid problems with your corporate overlords, and I am not expecting
a review from you).

Paolo

Paolo Bonzini (2):
KVM: x86/pmu: mask the result of rdpmc according to the width of the
counters
KVM: x86/pmu: do not mask the value that is written to fixed PMUs

arch/x86/kvm/pmu.c | 10 +++-------
arch/x86/kvm/pmu.h | 3 ++-
arch/x86/kvm/pmu_amd.c | 2 +-
arch/x86/kvm/vmx/pmu_intel.c | 26 +++++++++++++++++---------
4 files changed, 23 insertions(+), 18 deletions(-)

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1.8.3.1