pmap_pv_enter
pmap_pv_enter(pmap_t pmap, struct vm_page *pg, vaddr_t va, pt_entry_t *pte,
pmap_pv_enter(struct vm_page *pg, struct pv_entry *pve, pmap_t pm,
pmap_pv_enter(pmap_t pmap, struct vm_page *pg, vaddr_t va, vm_prot_t prot,