MODULE_AUTHOR("Qumranet");
MODULE_LICENSE("GPL");
+/*
+ * Ordering of locks:
+ *
+ * kvm->lock --> kvm->irq_lock
+ */
+
DEFINE_SPINLOCK(kvm_lock);
LIST_HEAD(vm_list);
interrupt_work);
kvm = assigned_dev->kvm;
- /* This is taken to safely inject irq inside the guest. When
- * the interrupt injection (or the ioapic code) uses a
- * finer-grained lock, update this
- */
- mutex_lock(&kvm->lock);
+ mutex_lock(&kvm->irq_lock);
spin_lock_irq(&assigned_dev->assigned_dev_lock);
if (assigned_dev->irq_requested_type & KVM_DEV_IRQ_HOST_MSIX) {
struct kvm_guest_msix_entry *guest_entries =
assigned_dev->guest_irq, 1);
spin_unlock_irq(&assigned_dev->assigned_dev_lock);
- mutex_unlock(&assigned_dev->kvm->lock);
+ mutex_unlock(&assigned_dev->kvm->irq_lock);
}
static irqreturn_t kvm_assigned_dev_intr(int irq, void *dev_id)
static void deassign_guest_irq(struct kvm *kvm,
struct kvm_assigned_dev_kernel *assigned_dev)
{
- kvm_unregister_irq_ack_notifier(&assigned_dev->ack_notifier);
+ kvm_unregister_irq_ack_notifier(kvm, &assigned_dev->ack_notifier);
assigned_dev->ack_notifier.gsi = -1;
if (assigned_dev->irq_source_id != -1)