1 /*-
2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <stand.h>
28 #include <sys/param.h>
29 #include <sys/reboot.h>
30 #include <sys/linker.h>
31 #include <machine/pc/bios.h>
32 #include <machine/metadata.h>
33
34 #include "bootstrap.h"
35 #include "libuserboot.h"
36
37 #define GB (1024UL * 1024 * 1024)
38
39 void
bios_addsmapdata(struct preloaded_file * kfp)40 bios_addsmapdata(struct preloaded_file *kfp)
41 {
42 uint64_t lowmem, highmem;
43 int smapnum, len;
44 struct bios_smap smap[3], *sm;
45
46 CALLBACK(getmem, &lowmem, &highmem);
47
48 sm = &smap[0];
49
50 sm->base = 0; /* base memory */
51 sm->length = 640 * 1024;
52 sm->type = SMAP_TYPE_MEMORY;
53 sm++;
54
55 sm->base = 0x100000; /* extended memory */
56 sm->length = lowmem - 0x100000;
57 sm->type = SMAP_TYPE_MEMORY;
58 sm++;
59
60 smapnum = 2;
61
62 if (highmem != 0) {
63 sm->base = 4 * GB;
64 sm->length = highmem;
65 sm->type = SMAP_TYPE_MEMORY;
66 smapnum++;
67 }
68
69 len = smapnum * sizeof(struct bios_smap);
70 file_addmetadata(kfp, MODINFOMD_SMAP, len, &smap[0]);
71 }
72