PG_PFNUM
#define pmap_pte_pa(pte) (PG_PFNUM(*(pte)) << PAGE_SHIFT)
pa = ptoa(PG_PFNUM(*pte));
ptoa(PG_PFNUM(opte)));
if (ptoa(PG_PFNUM(*pte)) != VM_PAGE_TO_PHYS(pg))
if (ptoa(PG_PFNUM(*pte)) != VM_PAGE_TO_PHYS(pg))
if (ptoa(PG_PFNUM(*pte)) != VM_PAGE_TO_PHYS(pg))
pa = ptoa(PG_PFNUM(*pte));
*pap = ptoa(PG_PFNUM(*pte)) | (va & PAGE_MASK);
old_pa = ptoa(PG_PFNUM(*pte));