blob: 10ec1452fd4ecbbe6e48aa81383439cf5930cc73 (
plain)
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
66
67
68
69
|
/*
* This file is part of msrtool.
*
* Copyright (c) 2009 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "msrtool.h"
/* This Darwin support requires DirectHW, which is available at
* http://www.coreboot.org/DirectHW
*/
int darwin_probe(const struct sysdef *system)
{
#ifdef __DARWIN__
return iopl(3) == 0;
#else
return 0;
#endif
}
int darwin_open(uint8_t cpu, enum SysModes mode)
{
#ifdef __DARWIN__
if (cpu > 0) {
fprintf(stderr, "%s: only core 0 is supported on Mac OS X right now.\n", __func__);
return 0;
}
return 1;
#else
return 0;
#endif
}
int darwin_close(uint8_t cpu)
{
return 1;
}
int darwin_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val)
{
#ifdef __DARWIN__
msr_t msr;
msr = rdmsr(addr);
val->hi = msr.lo;
val->lo = msr.hi;
return 1;
#else
return 0;
#endif
}
|
