freebsd man page for pmap_qenter

PMAP_QENTER(9)						   BSD Kernel Developer's Manual					    PMAP_QENTER(9)

NAME
     pmap_qenter, pmap_qremove -- manage temporary kernel space mappings

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

     void
     pmap_qenter(vm_offset_t sva, vm_page_t *m, int count);

     void
     pmap_qremove(vm_offset_t sva, int count);

DESCRIPTION
     The pmap_qenter() function accepts a linear array of count pointers to wired pages *m, and enters each of these pages into the kernel virtual
     address (KVA) space, beginning at the address sva.

     The pmap_qremove() function tears out a mapping from the kernel virtual address space, beginning at sva and for count pages.

IMPLEMENTATION NOTES
     The pmap_qenter() function is intended for temporary mappings that do not require page modification or reference counting.  Old mappings are
     simply overwritten.  The pages must be wired into physical memory.

     The corresponding pmap_qremove() function is intended to remove such temporary mappings.

SEE ALSO
     pmap(9)

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

BSD
								   July 21, 2003							       BSD