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-rw-r--r--arch/x86/kvm/pmu.c17
-rw-r--r--arch/x86/kvm/pmu.h2
-rw-r--r--arch/x86/kvm/vmx/pmu_intel.c32
3 files changed, 24 insertions, 27 deletions
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index ee6b2895faed..817352d83ff4 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -355,18 +355,13 @@ void reprogram_fixed_counter(struct kvm_pmc *pmc, u8 ctrl, int idx)
}
EXPORT_SYMBOL_GPL(reprogram_fixed_counter);
-void reprogram_counter(struct kvm_pmu *pmu, int pmc_idx)
+void reprogram_counter(struct kvm_pmc *pmc)
{
- struct kvm_pmc *pmc = static_call(kvm_x86_pmu_pmc_idx_to_pmc)(pmu, pmc_idx);
-
- if (!pmc)
- return;
-
if (pmc_is_gp(pmc))
reprogram_gp_counter(pmc, pmc->eventsel);
else {
- int idx = pmc_idx - INTEL_PMC_IDX_FIXED;
- u8 ctrl = fixed_ctrl_field(pmu->fixed_ctr_ctrl, idx);
+ int idx = pmc->idx - INTEL_PMC_IDX_FIXED;
+ u8 ctrl = fixed_ctrl_field(pmc_to_pmu(pmc)->fixed_ctr_ctrl, idx);
reprogram_fixed_counter(pmc, ctrl, idx);
}
@@ -385,8 +380,7 @@ void kvm_pmu_handle_event(struct kvm_vcpu *vcpu)
clear_bit(bit, pmu->reprogram_pmi);
continue;
}
-
- reprogram_counter(pmu, bit);
+ reprogram_counter(pmc);
}
/*
@@ -559,13 +553,12 @@ void kvm_pmu_destroy(struct kvm_vcpu *vcpu)
static void kvm_pmu_incr_counter(struct kvm_pmc *pmc)
{
- struct kvm_pmu *pmu = pmc_to_pmu(pmc);
u64 prev_count;
prev_count = pmc->counter;
pmc->counter = (pmc->counter + 1) & pmc_bitmask(pmc);
- reprogram_counter(pmu, pmc->idx);
+ reprogram_counter(pmc);
if (pmc->counter < prev_count)
__kvm_perf_overflow(pmc, false);
}
diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h
index 1398297ae6dc..1dd6be22cdb2 100644
--- a/arch/x86/kvm/pmu.h
+++ b/arch/x86/kvm/pmu.h
@@ -175,7 +175,7 @@ static inline void kvm_init_pmu_capability(void)
void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel);
void reprogram_fixed_counter(struct kvm_pmc *pmc, u8 ctrl, int fixed_idx);
-void reprogram_counter(struct kvm_pmu *pmu, int pmc_idx);
+void reprogram_counter(struct kvm_pmc *pmc);
void kvm_pmu_deliver_pmi(struct kvm_vcpu *vcpu);
void kvm_pmu_handle_event(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/vmx/pmu_intel.c b/arch/x86/kvm/vmx/pmu_intel.c
index 8eca1321af7e..719ae6c62a5a 100644
--- a/arch/x86/kvm/vmx/pmu_intel.c
+++ b/arch/x86/kvm/vmx/pmu_intel.c
@@ -56,16 +56,32 @@ static void reprogram_fixed_counters(struct kvm_pmu *pmu, u64 data)
pmu->fixed_ctr_ctrl = data;
}
+static struct kvm_pmc *intel_pmc_idx_to_pmc(struct kvm_pmu *pmu, int pmc_idx)
+{
+ if (pmc_idx < INTEL_PMC_IDX_FIXED) {
+ return get_gp_pmc(pmu, MSR_P6_EVNTSEL0 + pmc_idx,
+ MSR_P6_EVNTSEL0);
+ } else {
+ u32 idx = pmc_idx - INTEL_PMC_IDX_FIXED;
+
+ return get_fixed_pmc(pmu, idx + MSR_CORE_PERF_FIXED_CTR0);
+ }
+}
+
/* function is called when global control register has been updated. */
static void global_ctrl_changed(struct kvm_pmu *pmu, u64 data)
{
int bit;
u64 diff = pmu->global_ctrl ^ data;
+ struct kvm_pmc *pmc;
pmu->global_ctrl = data;
- for_each_set_bit(bit, (unsigned long *)&diff, X86_PMC_IDX_MAX)
- reprogram_counter(pmu, bit);
+ for_each_set_bit(bit, (unsigned long *)&diff, X86_PMC_IDX_MAX) {
+ pmc = intel_pmc_idx_to_pmc(pmu, bit);
+ if (pmc)
+ reprogram_counter(pmc);
+ }
}
static unsigned int intel_pmc_perf_hw_id(struct kvm_pmc *pmc)
@@ -104,18 +120,6 @@ static bool intel_pmc_is_enabled(struct kvm_pmc *pmc)
return test_bit(pmc->idx, (unsigned long *)&pmu->global_ctrl);
}
-static struct kvm_pmc *intel_pmc_idx_to_pmc(struct kvm_pmu *pmu, int pmc_idx)
-{
- if (pmc_idx < INTEL_PMC_IDX_FIXED)
- return get_gp_pmc(pmu, MSR_P6_EVNTSEL0 + pmc_idx,
- MSR_P6_EVNTSEL0);
- else {
- u32 idx = pmc_idx - INTEL_PMC_IDX_FIXED;
-
- return get_fixed_pmc(pmu, idx + MSR_CORE_PERF_FIXED_CTR0);
- }
-}
-
static bool intel_is_valid_rdpmc_ecx(struct kvm_vcpu *vcpu, unsigned int idx)
{
struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);