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
bi_getmemmap(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