After migration, vhost was not getting features
acked because set_features callback was never invoked.
The fix is just to invoke that callback.

Reported-by: David L Stevens <dlstev...@us.ibm.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---

David, a tested-by tag would be appreciated.

 hw/virtio.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/hw/virtio.c b/hw/virtio.c
index 5d686f0..74c450d 100644
--- a/hw/virtio.c
+++ b/hw/virtio.c
@@ -692,6 +692,8 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f)
                 features, supported_features);
         return -1;
     }
+    if (vdev->set_features)
+        vdev->set_features(vdev, features);
     vdev->guest_features = features;
     vdev->config_len = qemu_get_be32(f);
     qemu_get_buffer(f, vdev->config, vdev->config_len);
-- 
1.7.1.12.g42b7f


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