VM_MAP_CREATE(9) BSD Kernel Developer's Manual VM_MAP_CREATE(9)NAME
vm_map_create -- create a new vm_map structure
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/vm_map.h>
vm_map_t
vm_map_create(pmap_t pmap, vm_offset_t min, vm_offset_t max);
DESCRIPTION
The vm_map_create() function creates and returns a new, empty map structure, associated with the physical map pmap, and with the upper and
lower address bounds specified by max and min respectively.
IMPLEMENTATION NOTES
The kernel's zone allocator is used to allocate the map.
RETURN VALUES
The vm_map_create() function returns a pointer to the newly allocated map if successful. Otherwise, it returns NULL.
SEE ALSO pmap(9), vm_map(9), vm_map_init(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
PMAP_OBJECT_INIT_PT(9) BSD Kernel Developer's Manual PMAP_OBJECT_INIT_PT(9)NAME
pmap_object_init_pt -- initialize page tables for a VM object
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/pmap.h>
void
pmap_object_init_pt(pmap_t pmap, vm_offset_t addr, vm_object_t object, vm_pindex_t pindex, vm_size_t size, int limit);
DESCRIPTION
The pmap_object_init_pt() function preloads the page table entries into the specified physical map pmap, for the given object at the virtual
address addr, for size bytes, beginning at the page index pindex within the object. The map bits limit are heeded when creating the mapping.
IMPLEMENTATION NOTES
This function is not strictly required by an architecture's pmap(9) implementation, but it does provide performance benefits if implemented.
It is intended to eliminate the blast of soft faults on process startup, and immediately following a call to mmap(2).
SEE ALSO pmap(9), vm_map(9)AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>.
BSD July 21, 2003 BSD
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