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KVM: IRQ ACK notifier should be used with in-kernel irqchip 

Also remove unnecessary parameter of unregister irq ack notifier.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Sheng Yang 2008-10-20 16:07:10 +08:00 committed by Avi Kivity
parent cc6e462cd5
commit e19e30effa
3 changed files with 8 additions and 5 deletions
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3
include/linux/kvm_host.h
View File

@ -316,8 +316,7 @@ void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi); void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi);
void kvm_register_irq_ack_notifier(struct kvm *kvm, void kvm_register_irq_ack_notifier(struct kvm *kvm,
struct kvm_irq_ack_notifier *kian); struct kvm_irq_ack_notifier *kian);
void kvm_unregister_irq_ack_notifier(struct kvm *kvm, void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian);
struct kvm_irq_ack_notifier *kian);
int kvm_request_irq_source_id(struct kvm *kvm); int kvm_request_irq_source_id(struct kvm *kvm);
void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);

8
virt/kvm/irq_comm.c
View File

@ -58,12 +58,16 @@ void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi)
void kvm_register_irq_ack_notifier(struct kvm *kvm, void kvm_register_irq_ack_notifier(struct kvm *kvm,
struct kvm_irq_ack_notifier *kian) struct kvm_irq_ack_notifier *kian)
{ {
/* Must be called with in-kernel IRQ chip, otherwise it's nonsense */
ASSERT(irqchip_in_kernel(kvm));
ASSERT(kian);
hlist_add_head(&kian->link, &kvm->arch.irq_ack_notifier_list); hlist_add_head(&kian->link, &kvm->arch.irq_ack_notifier_list);
} }
void kvm_unregister_irq_ack_notifier(struct kvm *kvm, void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian)
struct kvm_irq_ack_notifier *kian)
{ {
if (!kian)
return;
hlist_del(&kian->link); hlist_del(&kian->link);
} }

2
virt/kvm/kvm_main.c
View File

@ -143,7 +143,7 @@ static void kvm_free_assigned_device(struct kvm *kvm,
if (irqchip_in_kernel(kvm) && assigned_dev->irq_requested) if (irqchip_in_kernel(kvm) && assigned_dev->irq_requested)
free_irq(assigned_dev->host_irq, (void *)assigned_dev); free_irq(assigned_dev->host_irq, (void *)assigned_dev);
kvm_unregister_irq_ack_notifier(kvm, &assigned_dev->ack_notifier); kvm_unregister_irq_ack_notifier(&assigned_dev->ack_notifier);
kvm_free_irq_source_id(kvm, assigned_dev->irq_source_id); kvm_free_irq_source_id(kvm, assigned_dev->irq_source_id);
if (cancel_work_sync(&assigned_dev->interrupt_work)) if (cancel_work_sync(&assigned_dev->interrupt_work))