Paolo Bonzini <[email protected]> writes:
> Il 04/06/2013 18:02, Bandan Das ha scritto:
>> +static u64 kvm_get_platform_info(struct kvm_vcpu *vcpu)
>> +{
>> + u8 cpumodel;
>> + u32 bclk;
>> +
>> + /*
>> + * Programmable Ratio Limit for Turbo Mode (bit 28): 0
>> + * Programmable TDC-TDP Limit for Turbo Mode (bit 29): 0
>> + */
>> + u64 platform_info = 0, max_nonturbo_ratio = 0, max_effi_ratio = 0;
>> +
>> + cpumodel = kvm_cpuid_get_intel_model(vcpu);
>> +
>> + switch (cpumodel) {
>> + case MODEL_NEHALEM_CLARKSFIELD:
>> + case MODEL_NEHALEM_BLOOMFIELD:
>> + case MODEL_NEHALEM_EX:
>> + case MODEL_WESTMERE_ARRANDALE:
>> + case MODEL_WESTMERE_GULFTOWN:
>> + case MODEL_WESTMERE_EX:
>> + bclk = BCLK_133_DEFAULT;
>
> Just one change: please rename this to base_clock_khz and remove the
> BCLK_*_DEFAULT constants please.
Thanks for the review! I thought the base clock is usually referred to
as bclk in Intel parlance but not sure :)
Anyway, I will send a new one.
> Paolo
>
>> + break;
>> + case MODEL_SANDYBRIDGE_SANDY:
>> + case MODEL_SANDYBRIDGE_E:
>> + case MODEL_IVYBRIDGE_IVY:
>> + case MODEL_HASWELL_HASWELL:
>> + bclk = BCLK_100_DEFAULT;
>> + break;
>> + default:
>> + bclk = 0;
>> + break;
>> + }
>> +
>> + if (bclk) {
>> + max_nonturbo_ratio = max_effi_ratio
>> + = (u8)(vcpu->arch.virtual_tsc_khz / bclk);
>> + platform_info = (max_effi_ratio << 40)
>> + | (max_nonturbo_ratio << 8);
>> + }
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