diff options
| -rw-r--r-- | virt/kvm/kvm_main.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 4727c08da2e..8966fd13e84 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -192,16 +192,31 @@ static int kvm_vm_ioctl_assign_irq(struct kvm *kvm, return -EINVAL; } - if (match->irq_requested) { + if (!match->irq_requested) { + INIT_WORK(&match->interrupt_work, + kvm_assigned_dev_interrupt_work_handler); + if (irqchip_in_kernel(kvm)) { + /* Register ack nofitier */ + match->ack_notifier.gsi = -1; + match->ack_notifier.irq_acked = + kvm_assigned_dev_ack_irq; + kvm_register_irq_ack_notifier(kvm, + &match->ack_notifier); + + /* Request IRQ source ID */ + r = kvm_request_irq_source_id(kvm); + if (r < 0) + goto out_release; + else + match->irq_source_id = r; + } + } else { match->guest_irq = assigned_irq->guest_irq; match->ack_notifier.gsi = assigned_irq->guest_irq; mutex_unlock(&kvm->lock); return 0; } - INIT_WORK(&match->interrupt_work, - kvm_assigned_dev_interrupt_work_handler); - if (irqchip_in_kernel(kvm)) { if (!capable(CAP_SYS_RAWIO)) { r = -EPERM; @@ -214,13 +229,6 @@ static int kvm_vm_ioctl_assign_irq(struct kvm *kvm, match->host_irq = match->dev->irq; match->guest_irq = assigned_irq->guest_irq; match->ack_notifier.gsi = assigned_irq->guest_irq; - match->ack_notifier.irq_acked = kvm_assigned_dev_ack_irq; - kvm_register_irq_ack_notifier(kvm, &match->ack_notifier); - r = kvm_request_irq_source_id(kvm); - if (r < 0) - goto out_release; - else - match->irq_source_id = r; /* Even though this is PCI, we don't want to use shared * interrupts. Sharing host devices with guest-assigned devices |