xen_shm_map
int xen_shm_map(int, int, grant_ref_t *, vaddr_t, grant_handle_t *, int);
if (xen_shm_map(1, pbxi->pbx_domid, &gshared_ref,
error = xen_shm_map(req->nr_segments, xbdi->xbdi_domid,
if (xen_shm_map(1, xbdi->xbdi_domid, &gring_ref, xbdi->xbdi_ring_va,
if (xen_shm_map(1, xneti->xni_domid, >x_ring_ref,
if (xen_shm_map(1, xneti->xni_domid, &grx_ring_ref,