int init_processor_name(void)
{
#if !CONFIG_K8_REV_F_SUPPORT
u32 EightBitBrandId;
#endif
u32 BrandId;
u32 BrandTableIndex;
u32 NN;
u32 ModelNumber=0;
msr_t progmsr;
int i;
const char *processor_name_string=NULL;
char program_string[48];
unsigned int *program_values = (unsigned int *)program_string;
#if !CONFIG_K8_REV_F_SUPPORT
/* Find out which CPU brand it is */
EightBitBrandId = cpuid_ebx(0x00000001) & 0xff;
BrandId = cpuid_ebx(0x80000001) & 0xffff;
if(!EightBitBrandId && !BrandId) {
BrandTableIndex = 0;
NN = 0xffffff;
} else if(!EightBitBrandId) {
BrandTableIndex = (BrandId >> 6) & 0x3f; // BrandId[11:6]
NN = BrandId & 0x3f; // // BrandId[6:0]
} else {
static void __init ms_hyperv_init_platform(void)
{
int hv_host_info_eax;
int hv_host_info_ebx;
int hv_host_info_ecx;
int hv_host_info_edx;
/*
* Extract the features and hints
*/
ms_hyperv.features = cpuid_eax(HYPERV_CPUID_FEATURES);
ms_hyperv.misc_features = cpuid_edx(HYPERV_CPUID_FEATURES);
ms_hyperv.hints = cpuid_eax(HYPERV_CPUID_ENLIGHTMENT_INFO);
pr_info("HyperV: features 0x%x, hints 0x%x\n",
ms_hyperv.features, ms_hyperv.hints);
/*
* Extract host information.
*/
if (cpuid_eax(HVCPUID_VENDOR_MAXFUNCTION) >= HVCPUID_VERSION) {
hv_host_info_eax = cpuid_eax(HVCPUID_VERSION);
hv_host_info_ebx = cpuid_ebx(HVCPUID_VERSION);
hv_host_info_ecx = cpuid_ecx(HVCPUID_VERSION);
hv_host_info_edx = cpuid_edx(HVCPUID_VERSION);
pr_info("Hyper-V Host Build:%d-%d.%d-%d-%d.%d\n",
hv_host_info_eax, hv_host_info_ebx >> 16,
hv_host_info_ebx & 0xFFFF, hv_host_info_ecx,
hv_host_info_edx >> 24, hv_host_info_edx & 0xFFFFFF);
}
static void __init init_hvm_pv_info(void)
{
int major, minor;
uint32_t eax, ebx, ecx, edx, base;
base = xen_cpuid_base();
eax = cpuid_eax(base + 1);
major = eax >> 16;
minor = eax & 0xffff;
printk(KERN_INFO "Xen version %d.%d.\n", major, minor);
xen_domain_type = XEN_HVM_DOMAIN;
/* PVH set up hypercall page in xen_prepare_pvh(). */
if (xen_pvh_domain())
pv_info.name = "Xen PVH";
else {
u64 pfn;
uint32_t msr;
pv_info.name = "Xen HVM";
msr = cpuid_ebx(base + 2);
pfn = __pa(hypercall_page);
wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
}
xen_setup_features();
cpuid(base + 4, &eax, &ebx, &ecx, &edx);
if (eax & XEN_HVM_CPUID_VCPU_ID_PRESENT)
this_cpu_write(xen_vcpu_id, ebx);
else
this_cpu_write(xen_vcpu_id, smp_processor_id());
}
static int setup_intel_arch_watchdog(void)
{
unsigned int evntsel;
unsigned ebx;
/*
* Check whether the Architectural PerfMon supports
* Unhalted Core Cycles Event or not.
* NOTE: Corresponding bit = 0 in ebp indicates event present.
*/
ebx = cpuid_ebx(10);
if ((ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT))
return 0;
nmi_perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0;
clear_msr_range(MSR_ARCH_PERFMON_EVENTSEL0, 2);
clear_msr_range(MSR_ARCH_PERFMON_PERFCTR0, 2);
evntsel = ARCH_PERFMON_EVENTSEL_INT
| ARCH_PERFMON_EVENTSEL_OS
| ARCH_PERFMON_EVENTSEL_USR
| ARCH_PERFMON_NMI_EVENT_SEL
| ARCH_PERFMON_NMI_EVENT_UMASK;
wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0);
wrmsrl(MSR_ARCH_PERFMON_PERFCTR0, -((u64)cpu_khz * 1000 / nmi_hz));
apic_write(APIC_LVTPC, APIC_DM_NMI);
evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE;
wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0);
return 1;
}
void svm_asid_init(struct cpuinfo_x86 *c)
{
int nasids = 0;
/* Check for erratum #170, and leave ASIDs disabled if it's present. */
if ( !cpu_has_amd_erratum(c, AMD_ERRATUM_170) )
nasids = cpuid_ebx(0x8000000A);
hvm_asid_init(nasids);
}
static void disable_intel_arch_watchdog(void)
{
unsigned ebx;
/*
* Check whether the Architectural PerfMon supports
* Unhalted Core Cycles Event or not.
* NOTE: Corresponding bit = 0 in ebp indicates event present.
*/
ebx = cpuid_ebx(10);
if (!(ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT))
wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, 0, 0);
}
/*
* This routine (and those that it might call) should not use
* anything that lives in .bss since that segment will be cleared later.
*/
void __init xen_prepare_pvh(void)
{
u32 msr;
u64 pfn;
if (pvh_start_info.magic != XEN_HVM_START_MAGIC_VALUE) {
xen_raw_printk("Error: Unexpected magic value (0x%08x)\n",
pvh_start_info.magic);
BUG();
}
xen_pvh = 1;
msr = cpuid_ebx(xen_cpuid_base() + 2);
pfn = __pa(hypercall_page);
wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
init_pvh_bootparams();
}
static u8 mctGetProcessorPackageType(void) {
/* FIXME: I guess this belongs wherever mctGetLogicalCPUID ends up ? */
u32 BrandId = cpuid_ebx(0x80000001);
return (u8)((BrandId >> 28) & 0x0F);
}
int init_processor_name(void)
{
/* variable names taken from fam10 revision guide for clarity */
u32 BrandId; /* CPUID Fn8000_0001_EBX */
u8 String1; /* BrandID[14:11] */
u8 String2; /* BrandID[3:0] */
u8 Model; /* BrandID[10:4] */
u8 Pg; /* BrandID[15] */
u8 PkgTyp; /* BrandID[31:28] */
u8 NC; /* CPUID Fn8000_0008_ECX */
const char *processor_name_string = unknown;
char program_string[48];
u32 *p_program_string = (u32 *)program_string;
msr_t msr;
int i, j = 0, str2_checkNC = 1;
const struct str_s *str, *str2;
/* Find out which CPU brand it is */
BrandId = cpuid_ebx(0x80000001);
String1 = (u8)((BrandId >> 11) & 0x0F);
String2 = (u8)((BrandId >> 0) & 0x0F);
Model = (u8)((BrandId >> 4) & 0x7F);
Pg = (u8)((BrandId >> 15) & 0x01);
PkgTyp = (u8)((BrandId >> 28) & 0x0F);
NC = (u8)(cpuid_ecx(0x80000008) & 0xFF);
/* null the string */
memset(program_string, 0, sizeof(program_string));
if (!Model) {
processor_name_string = Pg ? thermal : sample;
goto done;
}
switch (PkgTyp) {
case 0: /* F1207 */
str = String1_socket_F;
str2 = String2_socket_F;
str2_checkNC = 0;
break;
case 1: /* AM2 */
str = String1_socket_AM2;
str2 = String2_socket_AM2;
break;
case 5: /* C32 */
str = String1_socket_C32;
str2 = String2_socket_C32;
break;
default:
goto done;
}
/* String1 */
for (i = 0; str[i].value; i++) {
if ((str[i].Pg == Pg) &&
(str[i].NC == NC) &&
(str[i].String == String1)) {
processor_name_string = str[i].value;
break;
}
}
if (!str[i].value)
goto done;
j = strcpymax(program_string, processor_name_string,
sizeof(program_string));
/* Translate Model from 01-99 to ASCII and put it on the end.
* Numbers less than 10 should include a leading zero, e.g., 09.*/
if (Model < 100 && j < sizeof(program_string) - 2) {
program_string[j++] = (Model / 10) + '0';
program_string[j++] = (Model % 10) + '0';
}
processor_name_string = unknown2;
/* String 2 */
for(i = 0; str2[i].value; i++) {
if ((str2[i].Pg == Pg) &&
((str2[i].NC == NC) || !str2_checkNC) &&
(str2[i].String == String2)) {
processor_name_string = str2[i].value;
break;
}
}
done:
strcpymax(&program_string[j], processor_name_string,
sizeof(program_string) - j);
printk(BIOS_DEBUG, "CPU model: %s\n", program_string);
for (i = 0; i < 6; i++) {
msr.lo = p_program_string[(2 * i) + 0];
msr.hi = p_program_string[(2 * i) + 1];
wrmsr_amd(0xC0010030 + i, msr);
}
return 0;
}
