diff options
| author | Aaron Lewis <aaronlewis@google.com> | 2022-12-20 19:12:30 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-01-24 21:06:10 +0300 |
| commit | 6a5cba7bed35580effda9fb1872b274da47e6b23 (patch) | |
| tree | acd176cf254c9a1a2fe9dff712f28ef0de78e6c9 /arch/x86/kvm/pmu.h | |
| parent | 7cb79f433e75b05d1635aefaa851cfcd1cb7dc4f (diff) | |
| download | linux-6a5cba7bed35580effda9fb1872b274da47e6b23.tar.xz | |
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/pmu.h')
| -rw-r--r-- | arch/x86/kvm/pmu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h index cdb91009701d..30bfccc6df60 100644 --- a/arch/x86/kvm/pmu.h +++ b/arch/x86/kvm/pmu.h @@ -40,6 +40,8 @@ struct kvm_pmu_ops { void (*reset)(struct kvm_vcpu *vcpu); void (*deliver_pmi)(struct kvm_vcpu *vcpu); void (*cleanup)(struct kvm_vcpu *vcpu); + + const u64 EVENTSEL_EVENT; }; void kvm_pmu_ops_update(const struct kvm_pmu_ops *pmu_ops); |