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⟩.