* Copyright (c) 1991 Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* The Mach Operating System project at Carnegie-Mellon University.
* %sccs.include.redist.c%
* @(#)vm_init.c 7.5 (Berkeley) %G%
* Copyright (c) 1987, 1990 Carnegie-Mellon University.
* Authors: Avadis Tevanian, Jr., Michael Wayne Young
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
* Carnegie Mellon requests users of this software to return to
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
* Initialize the Virtual Memory subsystem.
* vm_init initializes the virtual memory system.
* This is done only by the first cpu up.
* The start and end address of physical memory is passed in.
extern vm_offset_t avail_start
, avail_end
;
extern vm_offset_t virtual_avail
, virtual_end
;
* Initializes resident memory structures.
* From here on, all physical memory is accounted for,
* and we use only virtual addresses.
vm_page_startup(&avail_start
, &avail_end
);
* Initialize other VM packages
kmem_init(virtual_avail
, virtual_end
);
pmap_init(avail_start
, avail_end
);