diff options
| author | Sean Christopherson <seanjc@google.com> | 2025-08-05 12:05:22 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-08-19 11:59:40 -0700 |
| commit | 58baa649ea09e7b719d0ef51aba894d63c2bb64f (patch) | |
| tree | 364e42b1ed73950805fbacd36553a7132ab710f9 | |
| parent | e630bb52d27f4191324d3443ecb2b115d7fb14b2 (diff) | |
KVM: x86/pmu: Drop redundant check on PMC being globally enabled for emulation
When triggering PMC events in response to emulation, drop the redundant
checks on a PMC being globally and locally enabled, as the passed in bitmap
contains only PMCs that are locally enabled (and counting the right event),
and the local copy of the bitmap has already been masked with global_ctrl.
No true functional change intended.
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Link: https://lore.kernel.org/r/20250805190526.1453366-15-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | arch/x86/kvm/pmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index fa3464559698..744717d379cb 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -974,7 +974,7 @@ static void kvm_pmu_trigger_event(struct kvm_vcpu *vcpu, return; kvm_for_each_pmc(pmu, pmc, i, bitmap) { - if (!pmc_is_globally_enabled(pmc) || !pmc_is_locally_enabled(pmc) || + if (!pmc_is_locally_enabled(pmc) || !check_pmu_event_filter(pmc) || !cpl_is_matched(pmc)) continue; |