osfmk/arm/pmap.c

3444 void pmap_remove(pmap_t map, vm_offset_t sva, vm_offset_t eva)
3448     vm_offset_t *spte, *epte, lva = sva;
3453     assert(!(sva & PAGE_MASK));
3464     while (sva < eva) {
3465         lva = (sva + _1MB) & ~((_1MB) - 1);
3468         tte = (pt_entry_t *)pmap_tte(map, sva);
3473             spte = (vm_offset_t *)((vm_offset_t) spte_begin + (vm_offset_t) pte_offset(sva));
3479             if ((sva >> L1SHIFT) != (lva >> L1SHIFT)) {
3480                 int mb_off = (lva >> L1SHIFT) - (sva >> L1SHIFT);
3493             pmap_remove_range(map, sva, spte, epte, FALSE);
3495         sva = lva;
3501     pmap_flush_tlbs(map, sva, eva);
3843  * Lower the specified protections on a certain map from sva to eva using prot prot.
3845 void pmap_protect(pmap_t map, vm_map_offset_t sva, vm_map_offset_t eva, vm_prot_t prot)
3857     assert(!(sva & PAGE_MASK));
3867         pmap_remove(map, sva, eva);
3887     orig_sva = sva;
3888     while (sva < eva) {
3889         lva = (sva + _1MB) & ~((_1MB) - 1);
3892         tte = (pt_entry_t *)pmap_tte(map, sva);
3897             spte = (pt_entry_t *)((vm_offset_t) spte_begin + (vm_offset_t) pte_offset(sva));
3903             if ((sva >> L1SHIFT) != (lva >> L1SHIFT)) {
3904                 int mb_off = (lva >> L1SHIFT) - (sva >> L1SHIFT);
3940         sva = lva;
3946     pmap_flush_tlbs(map, sva, eva);