diff options
| -rw-r--r-- | arch/x86/kvm/vmx/pmu_intel.c | 12 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.h | 7 |
2 files changed, 8 insertions, 11 deletions
diff --git a/arch/x86/kvm/vmx/pmu_intel.c b/arch/x86/kvm/vmx/pmu_intel.c index 862c1a4d971b..c399637a3a79 100644 --- a/arch/x86/kvm/vmx/pmu_intel.c +++ b/arch/x86/kvm/vmx/pmu_intel.c @@ -171,13 +171,6 @@ static inline struct kvm_pmc *get_fw_gp_pmc(struct kvm_pmu *pmu, u32 msr) return get_gp_pmc(pmu, msr, MSR_IA32_PMC0); } -bool intel_pmu_lbr_is_enabled(struct kvm_vcpu *vcpu) -{ - struct x86_pmu_lbr *lbr = vcpu_to_lbr_records(vcpu); - - return lbr->nr && (vcpu_get_perf_capabilities(vcpu) & PMU_CAP_LBR_FMT); -} - static bool intel_pmu_is_valid_lbr_msr(struct kvm_vcpu *vcpu, u32 index) { struct x86_pmu_lbr *records = vcpu_to_lbr_records(vcpu); @@ -592,7 +585,9 @@ static void intel_pmu_refresh(struct kvm_vcpu *vcpu) bitmap_set(pmu->all_valid_pmc_idx, INTEL_PMC_MAX_GENERIC, pmu->nr_arch_fixed_counters); - if (cpuid_model_is_consistent(vcpu)) + perf_capabilities = vcpu_get_perf_capabilities(vcpu); + if (cpuid_model_is_consistent(vcpu) && + (perf_capabilities & PMU_CAP_LBR_FMT)) x86_perf_get_lbr(&lbr_desc->records); else lbr_desc->records.nr = 0; @@ -600,7 +595,6 @@ static void intel_pmu_refresh(struct kvm_vcpu *vcpu) if (lbr_desc->records.nr) bitmap_set(pmu->all_valid_pmc_idx, INTEL_PMC_IDX_FIXED_VLBR, 1); - perf_capabilities = vcpu_get_perf_capabilities(vcpu); if (perf_capabilities & PERF_CAP_PEBS_FORMAT) { if (perf_capabilities & PERF_CAP_PEBS_BASELINE) { pmu->pebs_enable_mask = counter_mask; diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index f57a527cc589..24d58c2ffaa3 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -544,9 +544,12 @@ static inline struct x86_pmu_lbr *vcpu_to_lbr_records(struct kvm_vcpu *vcpu) return &vcpu_to_lbr_desc(vcpu)->records; } -void intel_pmu_cross_mapped_check(struct kvm_pmu *pmu); -bool intel_pmu_lbr_is_enabled(struct kvm_vcpu *vcpu); +static inline bool intel_pmu_lbr_is_enabled(struct kvm_vcpu *vcpu) +{ + return !!vcpu_to_lbr_records(vcpu)->nr; +} +void intel_pmu_cross_mapped_check(struct kvm_pmu *pmu); int intel_pmu_create_guest_lbr_event(struct kvm_vcpu *vcpu); void vmx_passthrough_lbr_msrs(struct kvm_vcpu *vcpu); |