Couple questions:
>
6. If you want that your BIOS, runs at the maximum CPU speed, in my
case, the CPU starts
with 800MHz, and i needed in the bios that works with 1000MHz. You can
add this if u will:
#define MSR_IA32_PERF_STATUS 0x00000198
#define MSR_IA32_PERF_CTL 0x00000199
#define MSR_IA32_MISC_ENABLE 0x000001a0
msr_t msr;
print_debug("Enabling C7 Power Save\r\n");
msr=rdmsr(MSR_IA32_MISC_ENABLE);
if (!(msr.lo & 0x10000)) {msr.lo|
0x10000;
msr.lo |= 0x10000?
wrmsr(MSR_IA32_MISC_ENABLE,msr);
msr=rdmsr(MSR_IA32_PERF_STATUS);
//TODO: wait CPU not busy bit 16 & 17 off (STATUS)
wrmsr(MSR_IA32_PERF_CTL, 0, (hi&0xff00)| ((hi>>16)&0x00ff));
//Max multi Factor, and minimum voltage
//TODO: wait CPU transition bit 16 & 17 off (STATUS)
}
Dammit, this was supposed to be:
}? Or is the if supposed to end after the first wrmsr?
Sorry!
-Corey