pmap_protect(9) [freebsd man page]

PMAP_PROTECT(9) 					   BSD Kernel Developer's Manual					   PMAP_PROTECT(9)

NAME

     pmap_protect -- set physical page protection

SYNOPSIS

     #include <sys/param.h>
     #include <vm/vm.h>
     #include <vm/pmap.h>

     void
     pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot);

DESCRIPTION

     The pmap_protect() function sets the physical page permissions to prot for all physical pages in the physical map pmap in the virtual address
     range between sva and eva.

SEE ALSO

     pmap(9)

AUTHORS

     This manual page was written by Bruce M Simpson <bms@spc.org>.

BSD
								   July 18, 2014							       BSD

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