pmap_protect9
Set physical page protection
Usage
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/pmap.h>
void
pmap_page_protect(vm_page_t m, vm_prot_t prot);
void
pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t pr);
Overview
The pmap_page_protect() function lowers the physical page permissions to prot for all mappings of a given page m.
The pmap_protect() function sets the physical page permissions to prot for all physical pages in the physical map pmap in the virtual address range between sva and eva.