VM_MAP_INIT(9) BSD Kernel Developer's Manual VM_MAP_INIT(9)NAME
vm_map_init -- initialize a vm_map structure for process zero
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/vm_map.h>
void
vm_map_init(vm_map_t map, vm_offset_t min, vm_offset_t max);
DESCRIPTION
The vm_map_init() function initializes the system map map by setting its upper and lower address bounds to max and min respectively.
It also initializes the system map mutex.
IMPLEMENTATION NOTES
This routine is for internal use only. It is called during early system initialization.
SEE ALSO vm_map(9)AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>.
BSD July 19, 2003 BSD
Check Out this Related Man Page
VM_MAP_SUBMAP(9) BSD Kernel Developer's Manual VM_MAP_SUBMAP(9)NAME
vm_map_submap -- create a subordinate map
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/vm_map.h>
int
vm_map_submap(vm_map_t map, vm_offset_t start, vm_offset_t end, vm_map_t submap);
DESCRIPTION
The vm_map_submap() function marks the range bounded by start and end within the map map as being handled by a subordinate map sub_map.
It is generally called by the kernel memory allocator.
IMPLEMENTATION NOTES
This function is for internal use only.
Both maps must exist. The range must have been created with vm_map_find(9) previously.
No other operations may have been performed on this range before calling this function. Only the vm_fault() operation may be performed
within this range after calling this function.
To remove a submapping, one must first remove the range from the parent map, and then destroy the sub_map. This procedure is not recom-
mended.
RETURN VALUES
The vm_map_submap() function returns KERN_SUCCESS if successful.
Otherwise, it returns KERN_INVALID_ARGUMENT if the caller requested copy-on-write flags, or if the range specified for the sub-map was out of
range for the parent map, or if a NULL backing object was specified.
SEE ALSO vm_map(9), vm_map_find(9)AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>.
BSD July 19, 2003 BSD
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