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>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 83afa10c77f5..d451928fc841 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -321,6 +321,12 @@ struct kvm_mem_alias {
         gfn_t target_gfn;
 };
 
+struct kvm_irq_ack_notifier {
+        struct hlist_node link;
+        unsigned gsi;
+        void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
+};
+
 struct kvm_arch{
         int naliases;
         struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
@@ -336,6 +342,7 @@ struct kvm_arch{
         struct kvm_pic *vpic;
         struct kvm_ioapic *vioapic;
         struct kvm_pit *vpit;
+        struct hlist_head irq_ack_notifier_list;
 
         int round_robin_prev_vcpu;
         unsigned int tss_addr;