xvdi_create_dev
*childp = xvdi_create_dev(parent, devclass, dom, vdev);
(void) xvdi_create_dev(parent, xdcp->devclass,
(void) xvdi_create_dev(parent, xdcp->devclass, dom, vdev);
(void) xvdi_create_dev(parent, devclass,
dev_info_t *xvdi_create_dev(dev_info_t *, xendev_devclass_t,