On 8/6/2025 3:05 AM, Sean Christopherson wrote:
> 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.
>
> Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
> ---
> arch/x86/kvm/pmu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
> index a495ab5d0556..bdcd9c6f0ec0 100644
> --- a/arch/x86/kvm/pmu.c
> +++ b/arch/x86/kvm/pmu.c
> @@ -969,7 +969,7 @@ 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;
>
Reviewed-by: Dapeng Mi <dapeng1.mi@xxxxxxxxxxxxxxx>
