diff options
| author | Marc Zyngier <maz@kernel.org> | 2026-05-20 11:01:56 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2026-05-21 08:08:48 +0100 |
| commit | 0d27b4b351493cb2fe1f87cd152856704d4e141d (patch) | |
| tree | c93892b7c857c257e15542934f2748dac68b8917 /include/kvm | |
| parent | 68a612d4dbc7f2b9dac731c79676a21fce573d29 (diff) | |
KVM: arm64: Simplify userspace notification of interrupt state
The userspace notification of interrupts is has a few problems:
- it is utterly pointless
- it is annoyingly split between detecting the need for notification
and the population of the interrupts in the run structure
We can't do anything about the former (yet), but the latter can be
addressed. If we detect that we must notify userspace, we know that
we are going to exit, as we populate the exit status. Which means
we can also populate the interrupt state at this stage and be done
with it.
This simplifies the structure of the code.
Reviewed-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20260520100200.543845-3-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include/kvm')
| -rw-r--r-- | include/kvm/arm_arch_timer.h | 2 | ||||
| -rw-r--r-- | include/kvm/arm_pmu.h | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h index bf8cc9589bd0..9e4076eebd29 100644 --- a/include/kvm/arm_arch_timer.h +++ b/include/kvm/arm_arch_timer.h @@ -104,7 +104,7 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu); void kvm_timer_sync_nested(struct kvm_vcpu *vcpu); void kvm_timer_sync_user(struct kvm_vcpu *vcpu); bool kvm_timer_should_notify_user(struct kvm_vcpu *vcpu); -void kvm_timer_update_run(struct kvm_vcpu *vcpu); +bool kvm_timer_update_run(struct kvm_vcpu *vcpu); void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu); void kvm_timer_init_vm(struct kvm *kvm); diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h index 0a36a3d5c894..3e844c5ee917 100644 --- a/include/kvm/arm_pmu.h +++ b/include/kvm/arm_pmu.h @@ -54,7 +54,7 @@ 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); -void kvm_pmu_update_run(struct kvm_vcpu *vcpu); +bool kvm_pmu_update_run(struct kvm_vcpu *vcpu); void kvm_pmu_software_increment(struct kvm_vcpu *vcpu, u64 val); void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val); void kvm_pmu_set_counter_event_type(struct kvm_vcpu *vcpu, u64 data, @@ -131,7 +131,7 @@ static inline bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu) { return false; } -static inline void kvm_pmu_update_run(struct kvm_vcpu *vcpu) {} +static inline bool kvm_pmu_update_run(struct kvm_vcpu *vcpu) { return false; } static inline void kvm_pmu_software_increment(struct kvm_vcpu *vcpu, u64 val) {} static inline void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val) {} static inline void kvm_pmu_set_counter_event_type(struct kvm_vcpu *vcpu, |