From: Xie Yongji <xieyongji@baidu.com>

We should only start vhost-user backend at the first kick for
virtio 1.0 transitional devices.

Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
---
 hw/block/vhost-user-blk.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c
index 700c1dd111..39e1adc60a 100644
--- a/hw/block/vhost-user-blk.c
+++ b/hw/block/vhost-user-blk.c
@@ -239,8 +239,7 @@ static void vhost_user_blk_handle_output(VirtIODevice *vdev, VirtQueue *vq)
     VHostUserBlk *s = VHOST_USER_BLK(vdev);
     int i;
 
-    if (!(virtio_host_has_feature(vdev, VIRTIO_F_VERSION_1) &&
-        !virtio_vdev_has_feature(vdev, VIRTIO_F_VERSION_1))) {
+    if (!vdev->start_on_kick) {
         return;
     }
 
-- 
2.17.1