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KVM: x86/pmu: Drop redundant check on PMC being globally enabled for emulation

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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>
This commit is contained in:
Sean Christopherson 2025-08-05 12:05:22 -07:00
parent e630bb52d2
commit 58baa649ea
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/pmu.c
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@ -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;