pmap_page_protect (9)
Leading comments
Copyright (c) 2003 Bruce M Simpson <bms@spc.org> All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documenta...
NAME
pmap_page_protect pmap_protect - set physical page protectionSYNOPSIS
In sys/param.h In vm/vm.h In vm/pmap.h Ft void Fn pmap_page_protect vm_page_t m vm_prot_t prot Ft void Fo pmap_protect Fa pmap_t pmap vm_offset_t sva vm_offset_t eva vm_prot_t pr FcDESCRIPTION
The Fn pmap_page_protect function lowers the physical page permissions to Fa prot for all mappings of a given page Fa m .The Fn pmap_protect function sets the physical page permissions to Fa prot for all physical pages in the physical map Fa pmap in the virtual address range between Fa sva and Fa eva .