diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx/pmu_intel.c | 17 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 20 |
3 files changed, 22 insertions, 17 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 535ad311ad02..13f923c69475 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2358,6 +2358,8 @@ static int svm_get_msr_feature(struct kvm_msr_entry *msr) if (boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) msr->data |= MSR_F10H_DECFG_LFENCE_SERIALIZE; break; + case MSR_IA32_PERF_CAPABILITIES: + return 0; default: return KVM_MSR_RET_INVALID; } diff --git a/arch/x86/kvm/vmx/pmu_intel.c b/arch/x86/kvm/vmx/pmu_intel.c index bdcce65c7a1d..a886a47daebd 100644 --- a/arch/x86/kvm/vmx/pmu_intel.c +++ b/arch/x86/kvm/vmx/pmu_intel.c @@ -180,9 +180,6 @@ static bool intel_is_valid_msr(struct kvm_vcpu *vcpu, u32 msr) case MSR_CORE_PERF_GLOBAL_OVF_CTRL: ret = pmu->version > 1; break; - case MSR_IA32_PERF_CAPABILITIES: - ret = 1; - break; default: ret = get_gp_pmc(pmu, msr, MSR_IA32_PERFCTR0) || get_gp_pmc(pmu, msr, MSR_P6_EVNTSEL0) || @@ -224,12 +221,6 @@ static int intel_pmu_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_CORE_PERF_GLOBAL_OVF_CTRL: msr_info->data = pmu->global_ovf_ctrl; return 0; - case MSR_IA32_PERF_CAPABILITIES: - if (!msr_info->host_initiated && - !guest_cpuid_has(vcpu, X86_FEATURE_PDCM)) - return 1; - msr_info->data = vcpu->arch.perf_capabilities; - return 0; default: if ((pmc = get_gp_pmc(pmu, msr, MSR_IA32_PERFCTR0)) || (pmc = get_gp_pmc(pmu, msr, MSR_IA32_PMC0))) { @@ -289,14 +280,6 @@ static int intel_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) return 0; } break; - case MSR_IA32_PERF_CAPABILITIES: - if (!msr_info->host_initiated) - return 1; - if (guest_cpuid_has(vcpu, X86_FEATURE_PDCM) ? - (data & ~vmx_get_perf_capabilities()) : data) - return 1; - vcpu->arch.perf_capabilities = data; - return 0; default: if ((pmc = get_gp_pmc(pmu, msr, MSR_IA32_PERFCTR0)) || (pmc = get_gp_pmc(pmu, msr, MSR_IA32_PMC0))) { diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e27d3db7e43f..69a2e9c981e9 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2857,6 +2857,20 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) return 1; vcpu->arch.arch_capabilities = data; break; + case MSR_IA32_PERF_CAPABILITIES: { + struct kvm_msr_entry msr_ent = {.index = msr, .data = 0}; + + if (!msr_info->host_initiated) + return 1; + if (guest_cpuid_has(vcpu, X86_FEATURE_PDCM) && kvm_get_msr_feature(&msr_ent)) + return 1; + if (data & ~msr_ent.data) + return 1; + + vcpu->arch.perf_capabilities = data; + + return 0; + } case MSR_EFER: return set_efer(vcpu, msr_info); case MSR_K7_HWCR: @@ -3197,6 +3211,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) return 1; msr_info->data = vcpu->arch.arch_capabilities; break; + case MSR_IA32_PERF_CAPABILITIES: + if (!msr_info->host_initiated && + !guest_cpuid_has(vcpu, X86_FEATURE_PDCM)) + return 1; + msr_info->data = vcpu->arch.perf_capabilities; + break; case MSR_IA32_POWER_CTL: msr_info->data = vcpu->arch.msr_ia32_power_ctl; break; |