diff options
Diffstat (limited to 'arch/x86/kvm/pmu.c')
| -rw-r--r-- | arch/x86/kvm/pmu.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index 5c4f631..cbecaa9 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -108,7 +108,10 @@ static void kvm_perf_overflow(struct perf_event *perf_event, { struct kvm_pmc *pmc = perf_event->overflow_handler_context; struct kvm_pmu *pmu = &pmc->vcpu->arch.pmu; - __set_bit(pmc->idx, (unsigned long *)&pmu->global_status); + if (!test_and_set_bit(pmc->idx, (unsigned long *)&pmu->reprogram_pmi)) { + __set_bit(pmc->idx, (unsigned long *)&pmu->global_status); + kvm_make_request(KVM_REQ_PMU, pmc->vcpu); + } } static void kvm_perf_overflow_intr(struct perf_event *perf_event, @@ -117,7 +120,7 @@ static void kvm_perf_overflow_intr(struct perf_event *perf_event, struct kvm_pmc *pmc = perf_event->overflow_handler_context; struct kvm_pmu *pmu = &pmc->vcpu->arch.pmu; if (!test_and_set_bit(pmc->idx, (unsigned long *)&pmu->reprogram_pmi)) { - kvm_perf_overflow(perf_event, data, regs); + __set_bit(pmc->idx, (unsigned long *)&pmu->global_status); kvm_make_request(KVM_REQ_PMU, pmc->vcpu); /* * Inject PMI. If vcpu was in a guest mode during NMI PMI |
