[PATCH v4 04/12] KVM: x86/pmu: Expose reprogram_counters() in pmu.h

Like Xu
2023-02-14T05:08:42Z

From: Like Xu <likexu@tencent.com>

The optimization stands on its own, whereas the code movement is
justified only by the incoming AMD PMU v2 support.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Like Xu <likexu@tencent.com>
---
arch/x86/kvm/pmu.h | 12 ++++++++++++
arch/x86/kvm/vmx/pmu_intel.c | 12 ------------
2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h
index 79988dafb15b..1eb50129fae7 100644
--- a/arch/x86/kvm/pmu.h
+++ b/arch/x86/kvm/pmu.h
@@ -189,6 +189,18 @@ static inline void kvm_pmu_request_counter_reprogam(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);
diff --git a/arch/x86/kvm/vmx/pmu_intel.c b/arch/x86/kvm/vmx/pmu_intel.c
index 069e1aae418c..904f832fc55d 100644
--- a/arch/x86/kvm/vmx/pmu_intel.c
+++ b/arch/x86/kvm/vmx/pmu_intel.c
@@ -73,18 +73,6 @@ static struct kvm_pmc *intel_pmc_idx_to_pmc(struct kvm_pmu *pmu, int pmc_idx)
}
}

-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));
-}
-
static bool intel_hw_event_available(struct kvm_pmc *pmc)
{
struct kvm_pmu *pmu = pmc_to_pmu(pmc);
--
2.39.1