diff options
| author | Ingo Molnar <mingo@kernel.org> | 2019-06-03 11:50:18 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-06-03 11:50:18 +0200 |
| commit | 26b73da3604cc1a6596406d136b14d1a01c3676f (patch) | |
| tree | c7839809e35fce4868910742157e8ef96782b378 /arch/x86/kvm/pmu.c | |
| parent | 5ca584d935c32906d114924dc0e1dbfcbb13fdb2 (diff) | |
| parent | f2c7c76c5d0a443053e94adb9f0918fa2fb85c3a (diff) | |
Merge tag 'v5.2-rc3' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kvm/pmu.c')
| -rw-r--r-- | arch/x86/kvm/pmu.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index e39741997893..dd745b58ffd8 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -283,7 +283,7 @@ int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned idx, u64 *data) bool fast_mode = idx & (1u << 31); struct kvm_pmu *pmu = vcpu_to_pmu(vcpu); struct kvm_pmc *pmc; - u64 ctr_val; + u64 mask = fast_mode ? ~0u : ~0ull; if (!pmu->version) return 1; @@ -291,15 +291,11 @@ int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned idx, u64 *data) if (is_vmware_backdoor_pmc(idx)) return kvm_pmu_rdpmc_vmware(vcpu, idx, data); - pmc = kvm_x86_ops->pmu_ops->msr_idx_to_pmc(vcpu, idx); + pmc = kvm_x86_ops->pmu_ops->msr_idx_to_pmc(vcpu, idx, &mask); if (!pmc) return 1; - ctr_val = pmc_read_counter(pmc); - if (fast_mode) - ctr_val = (u32)ctr_val; - - *data = ctr_val; + *data = pmc_read_counter(pmc) & mask; return 0; } |