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Man Pages


Manual Reference Pages  - PMAP_QENTER (9)

NAME

pmap_qenter, pmap_qremove - manage temporary kernel space mappings

CONTENTS

Synopsis
Description
Implementation Notes
See Also
Authors

SYNOPSIS


.In sys/param.h
.In vm/vm.h
.In 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
.An Bruce M Simpson Aq bms@spc.org .
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July 21, 2003 PMAP_QENTER (9)

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