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From: Like Xu <like.xu.linux@gmail.com>
To: Sean Christopherson <seanjc@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Jim Mattson <jmattson@google.com>
Subject: [PATCH v4 01/12] KVM: x86/pmu: Rename pmc_is_enabled() to pmc_is_globally_enabled()
Date: Tue, 14 Feb 2023 13:07:46 +0800	[thread overview]
Message-ID: <20230214050757.9623-2-likexu@tencent.com> (raw)
In-Reply-To: <20230214050757.9623-1-likexu@tencent.com>

From: Like Xu <likexu@tencent.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@google.com>
Signed-off-by: Like Xu <likexu@tencent.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


  reply	other threads:[~2023-02-14  5:08 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-14  5:07 [PATCH v4 00/12] KVM: x86: Add AMD Guest PerfMonV2 PMU support Like Xu
2023-02-14  5:07 ` Like Xu [this message]
2023-02-14  5:07 ` [PATCH v4 02/12] KVM: VMX: Refactor intel_pmu_set_msr() to align with other set_msr() helpers Like Xu
2023-02-16 21:13   ` Sean Christopherson
2023-02-21  8:44     ` Like Xu
2023-03-23  7:43       ` Like Xu
2023-03-23 14:28         ` Sean Christopherson
2023-02-14  5:07 ` [PATCH v4 03/12] KVM: x86/pmu: Rewrite reprogram_counters() to improve performance Like Xu
2023-02-14  5:07 ` [PATCH v4 04/12] KVM: x86/pmu: Expose reprogram_counters() in pmu.h Like Xu
2023-02-14  5:07 ` [PATCH v4 05/12] KVM: x86/pmu: Error when user sets the GLOBAL_STATUS reserved bits Like Xu
2023-04-06 23:45   ` Sean Christopherson
2023-04-07  5:08     ` Like Xu
2023-04-07 15:43       ` Sean Christopherson
2023-02-14  5:07 ` [PATCH v4 06/12] KVM: x86/pmu: Make part of the Intel v2 PMU MSRs handling x86 generic Like Xu
2023-04-06 23:57   ` Sean Christopherson
2023-04-07  1:39   ` Sean Christopherson
2023-02-14  5:07 ` [PATCH v4 07/12] KVM: x86/cpuid: Use fast return for cpuid "0xa" leaf when !enable_pmu Like Xu
2023-04-06 23:59   ` Sean Christopherson
2023-02-14  5:07 ` [PATCH v4 08/12] KVM: x86/pmu: Disable vPMU if the minimum num of counters isn't met Like Xu
2023-04-07  0:06   ` Sean Christopherson
2023-04-07  0:23     ` Sean Christopherson
2023-02-14  5:07 ` [PATCH v4 09/12] KVM: x86/pmu: Forget PERFCTR_CORE if the min " Like Xu
2023-04-07  0:32   ` Sean Christopherson
2023-02-14  5:07 ` [PATCH v4 10/12] KVM: x86/cpuid: Add X86_FEATURE_PERFMON_V2 as a scattered flag Like Xu
2023-04-07  0:41   ` Sean Christopherson
2023-02-14  5:07 ` [PATCH v4 11/12] KVM: x86/svm/pmu: Add AMD PerfMonV2 support Like Xu
2023-04-07  1:35   ` Sean Christopherson
2023-04-07  7:08     ` Like Xu
2023-04-07 14:44       ` Sean Christopherson
2023-04-10 11:34         ` Like Xu
2023-02-14  5:07 ` [PATCH v4 12/12] KVM: x86/cpuid: Add AMD CPUID ExtPerfMonAndDbg leaf 0x80000022 Like Xu
2023-04-07  1:50   ` Sean Christopherson
2023-04-07  7:19     ` Like Xu
2023-04-07  2:02 ` [PATCH v4 00/12] KVM: x86: Add AMD Guest PerfMonV2 PMU support Sean Christopherson
2023-04-07  7:28   ` Like Xu

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