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vhost-user-blk: Only start vhost-user backend with the first kick 

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>
Message-Id: <20190320112646.3712-5-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Xie Yongji 2019-03-20 19:26:43 +08:00 committed by Michael S. Tsirkin
parent 96cb549817
commit f3facbe671
1 changed files with 1 additions and 2 deletions
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3
hw/block/vhost-user-blk.c
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@ -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;
}