7db0d6027e69 ("vhost-vdpa: introduce descriptor group backend feature")
b63e5c70c393 ("vdpa: add get_backend_features vdpa operation")
8b59b4da9b56 ("vdpa: add VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK flag")
69106b6fb3d7 ("vhost-vdpa: Introduce RESUME backend feature bit")