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| author | Like Xu <likexu@tencent.com> | 2021-11-30 10:42:17 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-07 18:44:41 +0300 |
| commit | 7c174f305cbee6bdba5018aae02b84369e7ab995 (patch) | |
| tree | 47b1d86f97223e25862e6859ebcecc9d77743fba /arch/x86/kvm/svm/pmu.c | |
| parent | 761875634a5e2c3fed36c439fc4acac6f85a96eb (diff) | |
| download | linux-7c174f305cbee6bdba5018aae02b84369e7ab995.tar.xz | |
KVM: x86/pmu: Refactoring find_arch_event() to pmc_perf_hw_id()
The find_arch_event() returns a "unsigned int" value,
which is used by the pmc_reprogram_counter() to
program a PERF_TYPE_HARDWARE type perf_event.
The returned value is actually the kernel defined generic
perf_hw_id, let's rename it to pmc_perf_hw_id() with simpler
incoming parameters for better self-explanation.
Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20211130074221.93635-3-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm/pmu.c')
| -rw-r--r-- | arch/x86/kvm/svm/pmu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/svm/pmu.c b/arch/x86/kvm/svm/pmu.c index 0cf05e4caa4c..fb0ce8cda8a7 100644 --- a/arch/x86/kvm/svm/pmu.c +++ b/arch/x86/kvm/svm/pmu.c @@ -138,10 +138,10 @@ static inline struct kvm_pmc *get_gp_pmc_amd(struct kvm_pmu *pmu, u32 msr, return &pmu->gp_counters[msr_to_index(msr)]; } -static unsigned amd_find_arch_event(struct kvm_pmu *pmu, - u8 event_select, - u8 unit_mask) +static unsigned int amd_pmc_perf_hw_id(struct kvm_pmc *pmc) { + u8 event_select = pmc->eventsel & ARCH_PERFMON_EVENTSEL_EVENT; + u8 unit_mask = (pmc->eventsel & ARCH_PERFMON_EVENTSEL_UMASK) >> 8; int i; for (i = 0; i < ARRAY_SIZE(amd_event_mapping); i++) @@ -323,7 +323,7 @@ static void amd_pmu_reset(struct kvm_vcpu *vcpu) } struct kvm_pmu_ops amd_pmu_ops = { - .find_arch_event = amd_find_arch_event, + .pmc_perf_hw_id = amd_pmc_perf_hw_id, .find_fixed_event = amd_find_fixed_event, .pmc_is_enabled = amd_pmc_is_enabled, .pmc_idx_to_pmc = amd_pmc_idx_to_pmc, |