KVM: arm/arm64: Rename kvm_pmu_{enable/disable}_counter functions

The kvm_pmu_{enable/disable}_counter functions can enable/disable
multiple counters at once as they operate on a bitmask. Let's
make this clearer by renaming the function.

Suggested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Julien Thierry <julien.thierry@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index ce933f2..0a7665c 100644 (file)
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -865,12 +865,12 @@ static bool access_pmcnten(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
                if (r->Op2 & 0x1) {
                        /* accessing PMCNTENSET_EL0 */
                        __vcpu_sys_reg(vcpu, PMCNTENSET_EL0) |= val;
-                       kvm_pmu_enable_counter(vcpu, val);
+                       kvm_pmu_enable_counter_mask(vcpu, val);
                        kvm_vcpu_pmu_restore_guest(vcpu);
                } else {
                        /* accessing PMCNTENCLR_EL0 */
                        __vcpu_sys_reg(vcpu, PMCNTENSET_EL0) &= ~val;
-                       kvm_pmu_disable_counter(vcpu, val);
+                       kvm_pmu_disable_counter_mask(vcpu, val);
                }
        } else {
                p->regval = __vcpu_sys_reg(vcpu, PMCNTENSET_EL0) & mask;

diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h
index 84a9db1..45e5205 100644 (file)
--- a/include/kvm/arm_pmu.h
+++ b/include/kvm/arm_pmu.h
@@ -35,8 +35,8 @@ void kvm_pmu_set_counter_value(struct kvm_vcpu *vcpu, u64 select_idx, u64 val);
 u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu);
 void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu);
 void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu);
-void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val);
-void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val);
+void kvm_pmu_disable_counter_mask(struct kvm_vcpu *vcpu, u64 val);
+void kvm_pmu_enable_counter_mask(struct kvm_vcpu *vcpu, u64 val);
 void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu);
 void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu);
 bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu);
@@ -72,8 +72,8 @@ static inline u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu)
 }
 static inline void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu) {}
 static inline void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu) {}
-static inline void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val) {}
-static inline void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val) {}
+static inline void kvm_pmu_disable_counter_mask(struct kvm_vcpu *vcpu, u64 val) {}
+static inline void kvm_pmu_enable_counter_mask(struct kvm_vcpu *vcpu, u64 val) {}
 static inline void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu) {}
 static inline void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu) {}
 static inline bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu)

diff --git a/virt/kvm/arm/pmu.c b/virt/kvm/arm/pmu.c
index da74076..99e51ee 100644 (file)
--- a/virt/kvm/arm/pmu.c
+++ b/virt/kvm/arm/pmu.c
@@ -124,13 +124,13 @@ u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu)
 }
 
 /**
- * kvm_pmu_enable_counter - enable selected PMU counter
+ * kvm_pmu_enable_counter_mask - enable selected PMU counters
  * @vcpu: The vcpu pointer
  * @val: the value guest writes to PMCNTENSET register
  *
  * Call perf_event_enable to start counting the perf event
  */
-void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val)
+void kvm_pmu_enable_counter_mask(struct kvm_vcpu *vcpu, u64 val)
 {
        int i;
        struct kvm_pmu *pmu = &vcpu->arch.pmu;
@@ -153,13 +153,13 @@ void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val)
 }
 
 /**
- * kvm_pmu_disable_counter - disable selected PMU counter
+ * kvm_pmu_disable_counter_mask - disable selected PMU counters
  * @vcpu: The vcpu pointer
  * @val: the value guest writes to PMCNTENCLR register
  *
  * Call perf_event_disable to stop counting the perf event
  */
-void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val)
+void kvm_pmu_disable_counter_mask(struct kvm_vcpu *vcpu, u64 val)
 {
        int i;
        struct kvm_pmu *pmu = &vcpu->arch.pmu;
@@ -336,10 +336,10 @@ void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val)
 
        mask = kvm_pmu_valid_counter_mask(vcpu);
        if (val & ARMV8_PMU_PMCR_E) {
-               kvm_pmu_enable_counter(vcpu,
+               kvm_pmu_enable_counter_mask(vcpu,
                       __vcpu_sys_reg(vcpu, PMCNTENSET_EL0) & mask);
        } else {
-               kvm_pmu_disable_counter(vcpu, mask);
+               kvm_pmu_disable_counter_mask(vcpu, mask);
        }
 
        if (val & ARMV8_PMU_PMCR_C)