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| author | Oliver Upton <oliver.upton@linux.dev> | 2024-12-17 18:55:13 +0100 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-12-18 22:22:25 +0100 |
| commit | e22c369520d0a2a191820cc308f81a860b1b8d47 (patch) | |
| tree | 32ffceebf6cd5281219976e8364a17ec44b32e47 /include | |
| parent | KVM: arm64: Always check the state from hyp_ack_unshare() (diff) | |
| download | linux-e22c369520d0a2a191820cc308f81a860b1b8d47.tar.xz linux-e22c369520d0a2a191820cc308f81a860b1b8d47.zip | |
KVM: arm64: Add unified helper for reprogramming counters by mask
Having separate helpers for enabling/disabling counters provides the
wrong abstraction, as the state of each counter needs to be evaluated
independently and, in some cases, use a different global enable bit.
Collapse the enable/disable accessors into a single, common helper that
reconfigures every counter set in @mask, leaving the complexity of
determining if an event is actually enabled in
kvm_pmu_counter_is_enabled().
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20241217175513.3658056-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'include')
| -rw-r--r-- | include/kvm/arm_pmu.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h index e61dd7dd2286..147bd3ee4f7b 100644 --- a/include/kvm/arm_pmu.h +++ b/include/kvm/arm_pmu.h @@ -53,8 +53,7 @@ u64 kvm_pmu_get_pmceid(struct kvm_vcpu *vcpu, bool pmceid1); void kvm_pmu_vcpu_init(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_mask(struct kvm_vcpu *vcpu, u64 val); -void kvm_pmu_enable_counter_mask(struct kvm_vcpu *vcpu, u64 val); +void kvm_pmu_reprogram_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); @@ -127,8 +126,7 @@ static inline u64 kvm_pmu_accessible_counter_mask(struct kvm_vcpu *vcpu) static inline void kvm_pmu_vcpu_init(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_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_reprogram_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) |