path: root/arch/x86
diff options
authorAvi Kivity <avi@qumranet.com>2008-07-26 17:00:59 -0300
committerAvi Kivity <avi@qumranet.com>2008-10-15 10:15:16 +0200
commit564f15378f04921d5749f27ec53d5e68a6d1d446 (patch)
tree5ba58d06003010de40989a99b920602a1e76fdf9 /arch/x86
parent49dd2c492895828a90ecdf889e7fe9cfb40a82a7 (diff)
KVM: Add irq ack notifier list
This can be used by kvm subsystems that are interested in when interrupts are acked, for example time drift compensation. Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/x86')
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index 0d9e55275af..90911958d85 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -111,3 +111,25 @@ void kvm_set_irq(struct kvm *kvm, int irq, int level)
kvm_ioapic_set_irq(kvm->arch.vioapic, irq, level);
kvm_pic_set_irq(pic_irqchip(kvm), irq, level);
+void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi)
+ struct kvm_irq_ack_notifier *kian;
+ struct hlist_node *n;
+ hlist_for_each_entry(kian, n, &kvm->arch.irq_ack_notifier_list, link)
+ if (kian->gsi == gsi)
+ kian->irq_acked(kian);
+void kvm_register_irq_ack_notifier(struct kvm *kvm,
+ struct kvm_irq_ack_notifier *kian)
+ hlist_add_head(&kian->link, &kvm->arch.irq_ack_notifier_list);
+void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
+ struct kvm_irq_ack_notifier *kian)
+ hlist_del(&kian->link);
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 07ff2aef0c1..95fe718e3ab 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -83,6 +83,11 @@ static inline int irqchip_in_kernel(struct kvm *kvm)
void kvm_pic_reset(struct kvm_kpic_state *s);
void kvm_set_irq(struct kvm *kvm, int irq, int level);
+void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi);
+void kvm_register_irq_ack_notifier(struct kvm *kvm,
+ struct kvm_irq_ack_notifier *kian);
+void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
+ struct kvm_irq_ack_notifier *kian);
void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);