1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* You can also choose to distribute this program under the terms of
* the Unmodified Binary Distribution Licence (as given in the file
* COPYING.UBDL), provided that you have satisfied its requirements.
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include <ipxe/uaccess.h>
#include <ipxe/smbios.h>
#include <realmode.h>
#include <pnpbios.h>
/** @file
*
* System Management BIOS
*
*/
/**
* Find SMBIOS
*
* @v smbios SMBIOS entry point descriptor structure to fill in
* @ret rc Return status code
*/
static int bios_find_smbios ( struct smbios *smbios ) {
struct smbios_entry entry;
int rc;
/* Scan through BIOS segment to find SMBIOS entry point */
if ( ( rc = find_smbios_entry ( real_to_user ( BIOS_SEG, 0 ), 0x10000,
&entry ) ) != 0 )
return rc;
/* Fill in entry point descriptor structure */
smbios->address = phys_to_user ( entry.smbios_address );
smbios->len = entry.smbios_len;
smbios->count = entry.smbios_count;
smbios->version = SMBIOS_VERSION ( entry.major, entry.minor );
return 0;
}
PROVIDE_SMBIOS ( pcbios, find_smbios, bios_find_smbios );
|
