C++ (Cpp) rdmsr_locked Examples

Example #1

File: amd64errata.c Project: avsm/openbsd-xen-sys

static int 
amd64_errata_setmsr(struct cpu_info *ci, errata_t *e)
{
	uint64_t val;

	(void)ci;

	val = rdmsr_locked(e->e_data1, OPTERON_MSR_PASSCODE);
	if ((val & e->e_data2) != 0)
		return 0;		/* not found */

	wrmsr_locked(e->e_data1, OPTERON_MSR_PASSCODE, val | e->e_data2);

#ifdef ERRATA_DEBUG
	printf("ERRATA: writing a fix\n");
	val = rdmsr_locked(e->e_data1, OPTERON_MSR_PASSCODE);
	if ((val & e->e_data2) != 0)
		printf("ERRATA: fix seems to have worked!\n");
#endif

	e->e_reported = 1;
	return 2;			/* found and fixed */
}

Example #2

File: amd64errata.c Project: avsm/openbsd-xen-sys

static int 
amd64_errata_testmsr(struct cpu_info *ci, errata_t *e)
{
	uint64_t val;

	(void)ci;

	val = rdmsr_locked(e->e_data1, OPTERON_MSR_PASSCODE);
	if ((val & e->e_data2) != 0)
		return 0;		/* not found */

	e->e_reported = 1;
	return 1;			/* found */
}

Example #3

File: errata.c Project: lacombar/netbsd-alc

static bool 
x86_errata_testmsr(struct cpu_info *ci, errata_t *e)
{
	uint64_t val;

	(void)ci;

	val = rdmsr_locked(e->e_data1, OPTERON_MSR_PASSCODE);
	if ((val & e->e_data2) != 0)
		return FALSE;

	e->e_reported = TRUE;
	return TRUE;
}

Example #4

File: errata.c Project: lacombar/netbsd-alc

static bool 
x86_errata_setmsr(struct cpu_info *ci, errata_t *e)
{
	uint64_t val;

	(void)ci;

	val = rdmsr_locked(e->e_data1, OPTERON_MSR_PASSCODE);
	if ((val & e->e_data2) != 0)
		return FALSE;
	wrmsr_locked(e->e_data1, OPTERON_MSR_PASSCODE, val | e->e_data2);
	aprint_debug_dev(ci->ci_dev, "erratum %d patched\n",
	    e->e_num);

	return FALSE;
}