diff options
Diffstat (limited to 'arch/x86/kvm/pmu_amd.c')
| -rw-r--r-- | arch/x86/kvm/pmu_amd.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/x86/kvm/pmu_amd.c b/arch/x86/kvm/pmu_amd.c index a4a6d8a09f70..e8609ccd0b62 100644 --- a/arch/x86/kvm/pmu_amd.c +++ b/arch/x86/kvm/pmu_amd.c @@ -200,13 +200,19 @@ static struct kvm_pmc *amd_rdpmc_ecx_to_pmc(struct kvm_vcpu *vcpu, static bool amd_is_valid_msr(struct kvm_vcpu *vcpu, u32 msr) { + /* All MSRs refer to exactly one PMC, so msr_idx_to_pmc is enough. */ + return false; +} + +static struct kvm_pmc *amd_msr_idx_to_pmc(struct kvm_vcpu *vcpu, u32 msr) +{ struct kvm_pmu *pmu = vcpu_to_pmu(vcpu); - int ret = false; + struct kvm_pmc *pmc; - ret = get_gp_pmc_amd(pmu, msr, PMU_TYPE_COUNTER) || - get_gp_pmc_amd(pmu, msr, PMU_TYPE_EVNTSEL); + pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_COUNTER); + pmc = pmc ? pmc : get_gp_pmc_amd(pmu, msr, PMU_TYPE_EVNTSEL); - return ret; + return pmc; } static int amd_pmu_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *data) @@ -308,6 +314,7 @@ struct kvm_pmu_ops amd_pmu_ops = { .pmc_is_enabled = amd_pmc_is_enabled, .pmc_idx_to_pmc = amd_pmc_idx_to_pmc, .rdpmc_ecx_to_pmc = amd_rdpmc_ecx_to_pmc, + .msr_idx_to_pmc = amd_msr_idx_to_pmc, .is_valid_rdpmc_ecx = amd_is_valid_rdpmc_ecx, .is_valid_msr = amd_is_valid_msr, .get_msr = amd_pmu_get_msr, |