TA_TO_PREA
pr[i].addr = TA_TO_PREA(tbl);
entry.addr = TA_TO_PREA(((addr_t)pa));
pr[i] = DT_ROOT | TA_TO_PREA(tbl);
apr->addr = TA_TO_PREA(tbl);
entry.addr = TA_TO_PREA(((addr_t)rt));
dir.addr = TA_TO_PREA(pgdir_phys);
*entry = TA_TO_PREA(pgdirPhysical)