diff mbox series

[v3,07/11] KVM: x86/pmu: Use only the uniformly exported interface reprogram_counter()

Message ID 20220411093537.11558-8-likexu@tencent.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86/pmu: More refactoring to get rid of PERF_TYPE_HARDWAR | expand

Commit Message

Like Xu April 11, 2022, 9:35 a.m. UTC 
From: Like Xu <likexu@tencent.com>

Since reprogram_counter(), reprogram_{gp, fixed}_counter() currently have
the same incoming parameter "struct kvm_pmc *pmc", the callers can simplify
the conetxt by using uniformly exported interface, which makes reprogram_
{gp, fixed}_counter() static and eliminates EXPORT_SYMBOL_GPL.

Signed-off-by: Like Xu <likexu@tencent.com>
---
 arch/x86/kvm/pmu.c           | 6 ++----
 arch/x86/kvm/pmu.h           | 2 --
 arch/x86/kvm/svm/pmu.c       | 2 +-
 arch/x86/kvm/vmx/pmu_intel.c | 4 ++--
 4 files changed, 5 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 23c7f3cfcc6b..598b19223965 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -240,7 +240,7 @@  static bool check_pmu_event_filter(struct kvm_pmc *pmc)
 	return allow_event;
 }
 
-void reprogram_gp_counter(struct kvm_pmc *pmc)
+static void reprogram_gp_counter(struct kvm_pmc *pmc)
 {
 	u64 config;
 	u32 type = PERF_TYPE_RAW;
@@ -282,9 +282,8 @@  void reprogram_gp_counter(struct kvm_pmc *pmc)
 			      !(eventsel & ARCH_PERFMON_EVENTSEL_OS),
 			      eventsel & ARCH_PERFMON_EVENTSEL_INT);
 }
-EXPORT_SYMBOL_GPL(reprogram_gp_counter);
 
-void reprogram_fixed_counter(struct kvm_pmc *pmc)
+static void reprogram_fixed_counter(struct kvm_pmc *pmc)
 {
 	struct kvm_pmu *pmu = pmc_to_pmu(pmc);
 	int idx = pmc->idx - INTEL_PMC_IDX_FIXED;
@@ -312,7 +311,6 @@  void reprogram_fixed_counter(struct kvm_pmc *pmc)
 			      !(en_field & 0x1), /* exclude kernel */
 			      pmi);
 }
-EXPORT_SYMBOL_GPL(reprogram_fixed_counter);
 
 void reprogram_counter(struct kvm_pmc *pmc)
 {
diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h
index 9ea01fe02802..f4a799816c51 100644
--- a/arch/x86/kvm/pmu.h
+++ b/arch/x86/kvm/pmu.h
@@ -135,8 +135,6 @@  static inline u64 get_sample_period(struct kvm_pmc *pmc, u64 counter_value)
 	return sample_period;
 }
 
-void reprogram_gp_counter(struct kvm_pmc *pmc);
-void reprogram_fixed_counter(struct kvm_pmc *pmc);
 void reprogram_counter(struct kvm_pmc *pmc);
 
 void kvm_pmu_deliver_pmi(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/svm/pmu.c b/arch/x86/kvm/svm/pmu.c
index 2794a29b3f54..ebec2b478ac1 100644
--- a/arch/x86/kvm/svm/pmu.c
+++ b/arch/x86/kvm/svm/pmu.c
@@ -265,7 +265,7 @@  static int amd_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		data &= ~pmu->reserved_bits;
 		if (data != pmc->eventsel) {
 			pmc->eventsel = data;
-			reprogram_gp_counter(pmc);
+			reprogram_counter(pmc);
 		}
 		return 0;
 	}
diff --git a/arch/x86/kvm/vmx/pmu_intel.c b/arch/x86/kvm/vmx/pmu_intel.c
index ce71ad29643c..1f910b349978 100644
--- a/arch/x86/kvm/vmx/pmu_intel.c
+++ b/arch/x86/kvm/vmx/pmu_intel.c
@@ -52,7 +52,7 @@  static void reprogram_fixed_counters(struct kvm_pmu *pmu, u64 data)
 		pmc = get_fixed_pmc(pmu, MSR_CORE_PERF_FIXED_CTR0 + i);
 
 		__set_bit(INTEL_PMC_IDX_FIXED + i, pmu->pmc_in_use);
-		reprogram_fixed_counter(pmc);
+		reprogram_counter(pmc);
 	}
 }
 
@@ -454,7 +454,7 @@  static int intel_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 				reserved_bits ^= HSW_IN_TX_CHECKPOINTED;
 			if (!(data & reserved_bits)) {
 				pmc->eventsel = data;
-				reprogram_gp_counter(pmc);
+				reprogram_counter(pmc);
 				return 0;
 			}
 		} else if (intel_pmu_handle_lbr_msrs_access(vcpu, msr_info, false))