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KVM: Move ack notifier register and IRQ sourcd ID request

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Distinguish common part for device assignment and INTx part, perparing for
refactor later.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Sheng Yang 2008-11-24 14:32:49 +08:00 committed by Avi Kivity
parent 423cd25a5a
commit 342ffb9300
1 changed files with 19 additions and 11 deletions
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30
virt/kvm/kvm_main.c
View file

@ -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