[Qemu-devel] [PATCH 2/2] virtio: Set status early in VirtIODevice parent object

[Pankaj Gupta <pagupta@redhat.com>]

 To process pending requests for driver status 'VIRTIO_CONFIG_S_DRIVER_OK',
 virtio-rng 'set_status' calls 'is_guest_ready' function. This checks if 
 virtqueue is ready and status is set to 'VIRTIO_CONFIG_S_DRIVER_OK'. 

 This call is made before new status is updated in VirtIODevice parent object 
 and calling function uses old status value.

Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
---
 hw/virtio/virtio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index d4e4d98b59..37dc59a686 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1154,10 +1154,11 @@ int virtio_set_status(VirtIODevice *vdev, uint8_t val)
             }
         }
     }
+    vdev->status = val;
+
     if (k->set_status) {
         k->set_status(vdev, val);
     }
-    vdev->status = val;
     return 0;
 }
 
-- 
2.14.3