提交 486d2e63 编写于 作者: M Michael S. Tsirkin 提交者: Rusty Russell

virtio_balloon: enable VQs early on restore

virtio spec requires drivers to set DRIVER_OK before using VQs.
This is set automatically after resume returns, virtio balloon
violated this rule by adding bufs, which causes the VQ to be used
directly within restore.

To fix, call virtio_device_ready before using VQ.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
上级 e67423c7
......@@ -538,6 +538,8 @@ static int virtballoon_restore(struct virtio_device *vdev)
if (ret)
return ret;
virtio_device_ready(vdev);
fill_balloon(vb, towards_target(vb));
update_balloon_size(vb);
return 0;
......
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