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Added support for reading MSRs through dedicated driver on Win32

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git-svn-id: https://svn.code.sf.net/p/libcpuid/code/HEAD/libcpuid@69 3b4be424-7ac5-41d7-8526-f4ddcb85d872
This commit is contained in:
Veselin Georgiev 2009-09-30 11:25:14 +00:00
parent 432a585c78
commit e96082c67f
15 changed files with 1633 additions and 2 deletions
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15
cpuid_tool/cpuid_tool.c
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@ -83,6 +83,7 @@ typedef enum {
NEED_CLOCK,
NEED_CLOCK_OS,
NEED_CLOCK_RDTSC,
NEED_RDMSR,
} output_data_switch;
int need_input = 0,
@ -132,6 +133,7 @@ matchtable[] = {
{ NEED_CLOCK , "--clock" , 0},
{ NEED_CLOCK_OS , "--clock-os" , 0},
{ NEED_CLOCK_RDTSC , "--clock-rdtsc" , 1},
{ NEED_RDMSR , "--rdmsr" , 0},
};
const int sz_match = (sizeof(matchtable) / sizeof(matchtable[0]));
@ -314,6 +316,8 @@ static void print_info(output_data_switch query, struct cpu_raw_data_t* raw,
struct cpu_id_t* data)
{
int i;
struct msr_driver_t* handle;
uint64_t value;
switch (query) {
case NEED_CPUID_PRESENT:
fprintf(fout, "%d\n", cpuid_present());
@ -401,6 +405,17 @@ static void print_info(output_data_switch query, struct cpu_raw_data_t* raw,
case NEED_CLOCK_RDTSC:
fprintf(fout, "%d\n", cpu_clock_measure(400, 1));
break;
case NEED_RDMSR:
{
if ((handle = cpu_msr_driver_open()) == NULL) {
fprintf(fout, "Cannot open MSR driver: %s\n", cpuid_error());
} else {
cpu_rdmsr(handle, 0x10, &value);
fprintf(fout, "%I64d\n", value);
cpu_msr_driver_close(handle);
}
break;
}
default:
fprintf(fout, "How did you get here?!?\n");
break;