From: Mingwei Zhang <mizhang@xxxxxxxxxx> Make check_pmu_event_filter() exported to usable by vendor modules like kvm_intel. This is because passthrough PMU intercept the guest writes to event selectors and directly do the event filter checking inside the vendor specific set_msr() instead of deferring to the KVM_REQ_PMU handler. Signed-off-by: Mingwei Zhang <mizhang@xxxxxxxxxx> --- arch/x86/kvm/pmu.c | 3 ++- arch/x86/kvm/pmu.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index afc9f7eb3a6b..e7ad97734705 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -356,7 +356,7 @@ static bool is_fixed_event_allowed(struct kvm_x86_pmu_event_filter *filter, return true; } -static bool check_pmu_event_filter(struct kvm_pmc *pmc) +bool check_pmu_event_filter(struct kvm_pmc *pmc) { struct kvm_x86_pmu_event_filter *filter; struct kvm *kvm = pmc->vcpu->kvm; @@ -370,6 +370,7 @@ static bool check_pmu_event_filter(struct kvm_pmc *pmc) return is_fixed_event_allowed(filter, pmc->idx); } +EXPORT_SYMBOL_GPL(check_pmu_event_filter); static bool pmc_event_is_allowed(struct kvm_pmc *pmc) { diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h index a4c0b2e2c24b..6f44fe056368 100644 --- a/arch/x86/kvm/pmu.h +++ b/arch/x86/kvm/pmu.h @@ -292,6 +292,7 @@ void kvm_pmu_trigger_event(struct kvm_vcpu *vcpu, u64 perf_hw_id); void kvm_pmu_passthrough_pmu_msrs(struct kvm_vcpu *vcpu); void kvm_pmu_save_pmu_context(struct kvm_vcpu *vcpu); void kvm_pmu_restore_pmu_context(struct kvm_vcpu *vcpu); +bool check_pmu_event_filter(struct kvm_pmc *pmc); bool is_vmware_backdoor_pmc(u32 pmc_idx); -- 2.34.1