diff options
| author | Jason Wang <jasowang@redhat.com> | 2020-07-01 22:55:27 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-07-03 07:57:04 -0400 |
| commit | b2a5f62a2284a8933f6f6cda48797b7263b96970 (patch) | |
| tree | 91f7c200775f4c44672db6d9d1a184910bfe7722 /hw/virtio | |
| parent | 92fbc3e07eb924bd5e03d22764e637b2e02e46bd (diff) | |
virtio-bus: introduce queue_enabled method
This patch introduces queue_enabled() method which allows the
transport to implement its own way to report whether or not a queue is
enabled.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20200701145538.22333-4-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/virtio.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index cc9c9dc162..5bd2a2f621 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -3286,6 +3286,12 @@ hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n) bool virtio_queue_enabled(VirtIODevice *vdev, int n) { + BusState *qbus = qdev_get_parent_bus(DEVICE(vdev)); + VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); + + if (k->queue_enabled) { + return k->queue_enabled(qbus->parent, n); + } return virtio_queue_get_desc_addr(vdev, n) != 0; } |