diff options
Diffstat (limited to 'hw/virtio.c')
| -rw-r--r-- | hw/virtio.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/hw/virtio.c b/hw/virtio.c index ca170c319e..e259348518 100644 --- a/hw/virtio.c +++ b/hw/virtio.c @@ -73,6 +73,8 @@ struct VirtQueue /* Notification enabled? */ bool notification; + uint16_t queue_index; + int inuse; uint16_t vector; @@ -701,6 +703,15 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size, return &vdev->vq[i]; } +void virtio_del_queue(VirtIODevice *vdev, int n) +{ + if (n < 0 || n >= VIRTIO_PCI_QUEUE_MAX) { + abort(); + } + + vdev->vq[n].vring.num = 0; +} + void virtio_irq(VirtQueue *vq) { trace_virtio_irq(vq); @@ -922,6 +933,7 @@ void virtio_init(VirtIODevice *vdev, const char *name, for (i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) { vdev->vq[i].vector = VIRTIO_NO_VECTOR; vdev->vq[i].vdev = vdev; + vdev->vq[i].queue_index = i; } vdev->name = name; @@ -1009,6 +1021,11 @@ VirtQueue *virtio_get_queue(VirtIODevice *vdev, int n) return vdev->vq + n; } +uint16_t virtio_get_queue_index(VirtQueue *vq) +{ + return vq->queue_index; +} + static void virtio_queue_guest_notifier_read(EventNotifier *n) { VirtQueue *vq = container_of(n, VirtQueue, guest_notifier); |