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-rw-r--r--hw/virtio/virtio.c13
-rw-r--r--include/hw/virtio/virtio.h1
2 files changed, 14 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index b50cbef..5602285 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -746,6 +746,19 @@ int virtio_queue_get_num(VirtIODevice *vdev, int n)
return vdev->vq[n].vring.num;
}
+int virtio_get_num_queues(VirtIODevice *vdev)
+{
+ int i;
+
+ for (i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+ if (!virtio_queue_get_num(vdev, i)) {
+ break;
+ }
+ }
+
+ return i;
+}
+
int virtio_queue_get_id(VirtQueue *vq)
{
VirtIODevice *vdev = vq->vdev;
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 5244a3e..dd92fe4 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -176,6 +176,7 @@ void virtio_queue_set_addr(VirtIODevice *vdev, int n, hwaddr addr);
hwaddr virtio_queue_get_addr(VirtIODevice *vdev, int n);
void virtio_queue_set_num(VirtIODevice *vdev, int n, int num);
int virtio_queue_get_num(VirtIODevice *vdev, int n);
+int virtio_get_num_queues(VirtIODevice *vdev);
void virtio_queue_set_align(VirtIODevice *vdev, int n, int align);
void virtio_queue_notify(VirtIODevice *vdev, int n);
uint16_t virtio_queue_vector(VirtIODevice *vdev, int n);