NAME

       pmap_change_wiring — change physical wiring for a map or virtual address pair

SYNOPSIS

       #include <sys/param.h>
       #include <vm/vm.h>
       #include <vm/pmap.h>

       void
       pmap_change_wiring(pmap_t pmap, vm_offset_t va, boolean_t wired);

DESCRIPTION

       The  pmap_change_wiring() function changes the wiring attribute for the page at virtual address va in the
       physical map pmap.  A wired page gets its name from being “wired” into the system page tables so that  it
       will not be paged out.

       The  mapping  must  already  exist  in  the  pmap.   If wired is TRUE, the map's wired page count will be
       incremented; if FALSE, it will be decremented.

       It is typically called by the vm_fault_unwire() function.

SEE ALSO

       pmap(9)

AUTHORS

       This manual page was written by Bruce M Simpson <bms@spc.org>.

Debian                                            July 21, 2003                            PMAP_CHANGE_WIRING(9)