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| author | Like Xu <likexu@tencent.com> | 2023-06-03 04:10:48 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-06-07 03:31:44 +0300 |
| commit | 8de18543dfe34a6aac9deefb0256db2609cfa351 (patch) | |
| tree | 02632905e07bf6bbdde4f3d4fcce7b6529d6bec8 /arch/x86/kvm/pmu.h | |
| parent | 53550b89220beda42934a76a61313ecf308b2b03 (diff) | |
| download | linux-8de18543dfe34a6aac9deefb0256db2609cfa351.tar.xz | |
KVM: x86/pmu: Move reprogram_counters() to pmu.h
Move reprogram_counters() out of Intel specific PMU code and into pmu.h so
that it can be used to implement AMD PMU v2 support.
No functional change intended.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Like Xu <likexu@tencent.com>
[sean: rewrite changelog]
Link: https://lore.kernel.org/r/20230603011058.1038821-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/pmu.h')
| -rw-r--r-- | arch/x86/kvm/pmu.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h index 5c7bbf03b599..986563aeeef8 100644 --- a/arch/x86/kvm/pmu.h +++ b/arch/x86/kvm/pmu.h @@ -201,6 +201,18 @@ static inline void kvm_pmu_request_counter_reprogram(struct kvm_pmc *pmc) kvm_make_request(KVM_REQ_PMU, pmc->vcpu); } +static inline void reprogram_counters(struct kvm_pmu *pmu, u64 diff) +{ + int bit; + + if (!diff) + return; + + for_each_set_bit(bit, (unsigned long *)&diff, X86_PMC_IDX_MAX) + set_bit(bit, pmu->reprogram_pmi); + kvm_make_request(KVM_REQ_PMU, pmu_to_vcpu(pmu)); +} + void kvm_pmu_deliver_pmi(struct kvm_vcpu *vcpu); void kvm_pmu_handle_event(struct kvm_vcpu *vcpu); int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data); |