/* * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * 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 8.1 (Berkeley) 06/11/93 * * * Copyright (c) 1987, 1990 Carnegie-Mellon University. * All rights reserved. * * 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. */ #include #include #include #include /* * 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. */ void vm_mem_init() { 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_set_page_size(); vm_page_startup(&avail_start, &avail_end); /* * Initialize other VM packages */ vm_object_init(virtual_end - VM_MIN_KERNEL_ADDRESS); vm_map_startup(); kmem_init(virtual_avail, virtual_end); pmap_init(avail_start, avail_end); vm_pager_init(); }