xen_devlist
xen_attach_device(struct xen_softc *sc, struct xen_devlist *xdl,
struct xen_devlist *xdl;
if ((xdl = malloc(sizeof(struct xen_devlist), M_DEVBUF,
struct xen_devlist *xdl = arg;
int xen_attach_device(struct xen_softc *, struct xen_devlist *,
SLIST_ENTRY(xen_devlist) dl_entry;
SLIST_HEAD(xen_devlists, xen_devlist);