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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 /include/hw/virtio
parent857cc71985dcd553a601fb9a0df7919359c23115 (diff)
downloadqemu-8c797e758ad41b8dd6ea6f72c6f0194dedb30a2f.tar.gz
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 'include/hw/virtio')
-rw-r--r--include/hw/virtio/virtio.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index e5541c61f7..6523bacd2f 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -228,6 +228,7 @@ 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_queue_get_max_num(VirtIODevice *vdev, int n);
int virtio_get_num_queues(VirtIODevice *vdev);
void virtio_queue_set_rings(VirtIODevice *vdev, int n, hwaddr desc,
hwaddr avail, hwaddr used);