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 <jasow...@redhat.com>
---
hw/virtio.c | 8 ++++++++
hw/virtio.h | 1 +
2 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/hw/virtio.c b/hw/virtio.c
index d8c77b0..e259348 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 d3da1d2..a29a54d 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,
--
1.7.1
--
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