PMAP_QENTER (9) | Kernel routines | Unix Manual Pages



PMAP_QENTER (9) \| Kernel routines \| Unix Manual Pages \| :man▋ 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

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