+ status |= VIRTIO_STAT_DRIVER;
+ virtio_set_status(dev, status);
+
+ if (dev->is_modern) {
+ /* Negotiate features and sets FEATURES_OK if successful */
+ if (virtio_negotiate_guest_features(dev, DRIVER_FEATURE_SUPPORT))
+ goto dev_error;
+
+ virtio_get_status(dev, &status);
+ } else {
+ /* Device specific setup - we support F_BLK_SIZE */
+ virtio_set_guest_features(dev, VIRTIO_BLK_F_BLK_SIZE);
+ }