1 /* $NetBSD: bootinfo_memmap.c,v 1.5 2008/12/14 17:03:43 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1999 5 * Matthias Drochner. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 */ 28 29 #include <lib/libsa/stand.h> 30 #include "libi386.h" 31 #include "bootinfo.h" 32 33 extern int getmementry(int *, int *); 34 35 void 36 bi_getmemmap(void) 37 { 38 int buf[5], i, nranges, n; 39 struct btinfo_memmap *bimm; 40 41 nranges = 0; 42 i = 0; 43 do { 44 if (getmementry(&i, buf)) 45 break; 46 nranges++; 47 } while (i); 48 49 bimm = alloc(sizeof(struct btinfo_memmap) 50 + (nranges - 1) * sizeof(struct bi_memmap_entry)); 51 52 i = 0; 53 for (n = 0; n < nranges; n++) { 54 getmementry(&i, buf); 55 memcpy(&bimm->entry[n], buf, sizeof(struct bi_memmap_entry)); 56 } 57 bimm->num = nranges; 58 59 BI_ADD(bimm, BTINFO_MEMMAP, sizeof(struct btinfo_memmap) 60 + (nranges - 1) * sizeof(struct bi_memmap_entry)); 61 } 62