1 /* 2 * Copyright (c) 1985, Avadis Tevanian, Jr., Michael Wayne Young 3 * Copyright (c) 1987 Carnegie-Mellon University 4 * Copyright (c) 1991 Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * The Mach Operating System project at Carnegie-Mellon University. 9 * 10 * The CMU software License Agreement specifies the terms and conditions 11 * for use and redistribution. 12 * 13 * @(#)vm_init.c 7.2 (Berkeley) 04/20/91 14 */ 15 16 /* 17 * Initialize the Virtual Memory subsystem. 18 */ 19 20 #include "param.h" 21 22 #include "vm.h" 23 #include "vm_page.h" 24 #include "vm_kern.h" 25 26 /* 27 * vm_init initializes the virtual memory system. 28 * This is done only by the first cpu up. 29 * 30 * The start and end address of physical memory is passed in. 31 */ 32 33 void vm_mem_init() 34 { 35 extern vm_offset_t avail_start, avail_end; 36 extern vm_offset_t virtual_avail, virtual_end; 37 38 /* 39 * Initializes resident memory structures. 40 * From here on, all physical memory is accounted for, 41 * and we use only virtual addresses. 42 */ 43 44 virtual_avail = vm_page_startup(avail_start, avail_end, virtual_avail); 45 /* 46 * Initialize other VM packages 47 */ 48 vm_object_init(); 49 vm_map_startup(); 50 kmem_init(virtual_avail, virtual_end); 51 pmap_init(avail_start, avail_end); 52 vm_pager_init(); 53 } 54