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authorJason Wang <jasowang@redhat.com>2013-01-30 19:12:37 +0800
committerAnthony Liguori <aliguori@us.ibm.com>2013-02-01 11:03:03 -0600
commite78a2b4285f6cc125dc7a514bebef97d9af1d812 (patch)
tree34227ae90a31eb1fc68d8112385ad09dfae3a6ed
parentf23fd811ac4f49f482058cad3b465dc5dc0edc11 (diff)
downloadqemu-arm-e78a2b4285f6cc125dc7a514bebef97d9af1d812.tar.gz
virtio: add a queue_index to VirtQueue
Add a queue_index to VirtQueue and a helper to fetch it, this could be used by multiqueue supported device. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-rw-r--r--hw/virtio.c8
-rw-r--r--hw/virtio.h1
2 files changed, 9 insertions, 0 deletions
diff --git a/hw/virtio.c b/hw/virtio.c
index d8c77b054d..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;
@@ -931,6 +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;
@@ -1018,6 +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);
diff --git a/hw/virtio.h b/hw/virtio.h
index d3da1d25df..a29a54d4f3 100644
--- a/hw/virtio.h
+++ b/hw/virtio.h
@@ -280,6 +280,7 @@ hwaddr virtio_queue_get_ring_size(VirtIODevice *vdev, int n);
uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n);
void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n, uint16_t idx);
VirtQueue *virtio_get_queue(VirtIODevice *vdev, int n);
+uint16_t virtio_get_queue_index(VirtQueue *vq);
int virtio_queue_get_id(VirtQueue *vq);
EventNotifier *virtio_queue_get_guest_notifier(VirtQueue *vq);
void virtio_queue_set_guest_notifier_fd_handler(VirtQueue *vq, bool assign,