pmap_pv_enter
error = pmap_pv_enter(pmap, pg, va, pte, true, opv);
static int pmap_pv_enter(pmap_t, struct vm_page *, vaddr_t, pt_entry_t *,
pmap_pv_enter(pg, pve, pmap, va, ptp, 0);
static inline void pmap_pv_enter(struct vm_page *, struct pv_entry *, pmap_t,
pmap_pv_enter(pg, pve, pmap_kernel(), va, NULL, PV_KENTER);
pmap_pv_enter(pmap, pg, va, prot, pt, npte, newpv);