linux-kernel - [PATCH v4 01/12] KVM: x86/pmu: Rename pmc_is_enabled() to pmc_is_globally

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Message-Id: <20230214050757.9623-2-likexu@tencent.com>
Date:   Tue, 14 Feb 2023 13:07:46 +0800
From:   Like Xu <like.xu.linux@...il.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jim Mattson <jmattson@...gle.com>
Subject: [PATCH v4 01/12] KVM: x86/pmu: Rename pmc_is_enabled() to pmc_is_globally_enabled()

From: Like Xu <likexu@...cent.com>

The name of function pmc_is_enabled() is a bit misleading. A PMC can
be disabled either by PERF_CLOBAL_CTRL or by its corresponding EVTSEL.
Append global semantics to its name.

Suggested-by: Jim Mattson <jmattson@...gle.com>
Signed-off-by: Like Xu <likexu@...cent.com>
---
 arch/x86/kvm/pmu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 7b6c3ba2c8e1..af541c913acd 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -93,7 +93,7 @@ void kvm_pmu_ops_update(const struct kvm_pmu_ops *pmu_ops)
 #undef __KVM_X86_PMU_OP
 }
 
-static inline bool pmc_is_enabled(struct kvm_pmc *pmc)
+static inline bool pmc_is_globally_enabled(struct kvm_pmc *pmc)
 {
 	return static_call(kvm_x86_pmu_pmc_is_enabled)(pmc);
 }
@@ -409,7 +409,7 @@ static void reprogram_counter(struct kvm_pmc *pmc)
 
 	pmc_pause_counter(pmc);
 
-	if (!pmc_speculative_in_use(pmc) || !pmc_is_enabled(pmc))
+	if (!pmc_speculative_in_use(pmc) || !pmc_is_globally_enabled(pmc))
 		goto reprogram_complete;
 
 	if (!check_pmu_event_filter(pmc))
@@ -684,7 +684,7 @@ void kvm_pmu_trigger_event(struct kvm_vcpu *vcpu, u64 perf_hw_id)
 	for_each_set_bit(i, pmu->all_valid_pmc_idx, X86_PMC_IDX_MAX) {
 		pmc = static_call(kvm_x86_pmu_pmc_idx_to_pmc)(pmu, i);
 
-		if (!pmc || !pmc_is_enabled(pmc) || !pmc_speculative_in_use(pmc))
+		if (!pmc || !pmc_is_globally_enabled(pmc) || !pmc_speculative_in_use(pmc))
 			continue;
 
 		/* Ignore checks for edge detect, pin control, invert and CMASK bits */
-- 
2.39.1