aboutsummaryrefslogtreecommitdiff
path: root/hw/virtio
diff options
context:
space:
mode:
authorMichael S. Tsirkin <mst@redhat.com>2017-01-12 23:26:22 +0200
committerCornelia Huck <cornelia.huck@de.ibm.com>2017-01-20 10:02:02 +0100
commit8c797e758ad41b8dd6ea6f72c6f0194dedb30a2f (patch)
tree5943d12536c27bda777a968bc2dde11a32bd043f /hw/virtio
parent857cc71985dcd553a601fb9a0df7919359c23115 (diff)
virtio-ccw: fix ring sizing
Current code seems to assume ring size is always decreased but this is not required by spec: what spec says is just that size can not exceed the maximum. Fix it up. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <1484256243-1982-1-git-send-email-mst@redhat.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/virtio')
-rw-r--r--hw/virtio/virtio.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index aa4f38f50a..94d7dbae6c 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1262,6 +1262,11 @@ int virtio_queue_get_num(VirtIODevice *vdev, int n)
return vdev->vq[n].vring.num;
}
+int virtio_queue_get_max_num(VirtIODevice *vdev, int n)
+{
+ return vdev->vq[n].vring.num_default;
+}
+
int virtio_get_num_queues(VirtIODevice *vdev)
{
int i;