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KVM: Report IRQ injection status to userspace.

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IRQ injection status is either -1 (if there was no CPU found
that should except the interrupt because IRQ was masked or
ioapic was misconfigured or ...) or >= 0 in that case the
number indicates to how many CPUs interrupt was injected.
If the value is 0 it means that the interrupt was coalesced
and probably should be reinjected.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Gleb Natapov 2009-02-04 17:28:14 +02:00 • committed by Avi Kivity
parent 452425dbaa
commit 4925663a07
9 changed files with 88 additions and 34 deletions
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4
include/linux/kvm_host.h
View file

@ -110,7 +110,7 @@ struct kvm_memory_slot {
struct kvm_kernel_irq_routing_entry {
u32 gsi;
void (*set)(struct kvm_kernel_irq_routing_entry *e,
int (*set)(struct kvm_kernel_irq_routing_entry *e,
struct kvm *kvm, int level);
union {
struct {
@ -352,7 +352,7 @@ void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
struct kvm_irq_mask_notifier *kimn);
void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
void kvm_register_irq_ack_notifier(struct kvm *kvm,
struct kvm_irq_ack_notifier *kian);