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| author | Aaron Lewis <aaronlewis@google.com> | 2022-12-20 16:12:30 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-01-24 10:06:10 -0800 |
| commit | 6a5cba7bed35580effda9fb1872b274da47e6b23 (patch) | |
| tree | acd176cf254c9a1a2fe9dff712f28ef0de78e6c9 /arch/x86/kvm/vmx/pmu_intel.c | |
| parent | 7cb79f433e75b05d1635aefaa851cfcd1cb7dc4f (diff) | |
| download | linux-stable-6a5cba7bed35580effda9fb1872b274da47e6b23.tar.gz linux-stable-6a5cba7bed35580effda9fb1872b274da47e6b23.tar.bz2 linux-stable-6a5cba7bed35580effda9fb1872b274da47e6b23.zip | |
KVM: x86/pmu: Correct the mask used in a pmu event filter lookup
When checking if a pmu event the guest is attempting to program should
be filtered, only consider the event select + unit mask in that
decision. Use an architecture specific mask to mask out all other bits,
including bits 35:32 on Intel. Those bits are not part of the event
select and should not be considered in that decision.
Fixes: 66bb8a065f5a ("KVM: x86: PMU Event Filter")
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Link: https://lore.kernel.org/r/20221220161236.555143-2-aaronlewis@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/vmx/pmu_intel.c')
| -rw-r--r-- | arch/x86/kvm/vmx/pmu_intel.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/pmu_intel.c b/arch/x86/kvm/vmx/pmu_intel.c index efce9ad70e4e..7980fda3978d 100644 --- a/arch/x86/kvm/vmx/pmu_intel.c +++ b/arch/x86/kvm/vmx/pmu_intel.c @@ -811,4 +811,5 @@ struct kvm_pmu_ops intel_pmu_ops __initdata = { .reset = intel_pmu_reset, .deliver_pmi = intel_pmu_deliver_pmi, .cleanup = intel_pmu_cleanup, + .EVENTSEL_EVENT = ARCH_PERFMON_EVENTSEL_EVENT, }; |