Comment 4 for bug 857662

I would prefer to _not_ enable XEN_BLKDEV_FRONTEND for kernel flavours that are not intended for virtual environments. In order to do so you must first build in one of the front end device drivers such as CONFIG_XEN_BLKDEV_FRONTEND=y or CONFIG_XEN_NETDEV_FRONTEND=y. CONFIG_XEN_XENBUS_FRONTEND=y is not a separately selectable config option.

Xen netboot images should be based on the -virtual flavour.