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

Commit Message

Like Xu Feb. 14, 2023, 5:07 a.m. UTC

From: Like Xu <[e-mail]>

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

Suggested-by: Sean Christopherson <[e-mail]>
Signed-off-by: Like Xu <[e-mail]>
---
 arch/x86/kvm/pmu.h           | 12 ++++++++++++
 arch/x86/kvm/vmx/pmu_intel.c | 12 ------------
 2 files changed, 12 insertions(+), 12 deletions(-)

Patch

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);