Re: [RFC PATCH 1/3] x86/cpu: Unify CPU family, model, stepping calculation

[Paolo Bonzini <pbonzini@redhat.com>]

On 18/11/2015 12:28, Borislav Petkov wrote:
>> On 14/11/2015 11:37, Borislav Petkov wrote:
>>> > >  	vendor = x86_vendor();
>>> > > -	family = x86_family();
>>> > > +	family = x86_family_cpuid();
>> > 
>> > What about renaming x86_vendor() so that this looks like
>> > 
>> > -	vendor = x86_vendor();
>> > -	family = x86_family();
>> > +	vendor = x86_cpuid_vendor();
>> > +	family = x86_cpuid_family();
> 
> The idea is that x86_family_cpuid() gives the family *after* having
> executed CPUID while x86_family() only computes the family from a
> supplied CPUID_1_EAX. I.e., the last saves us the CPUID call.

Yes, exactly.  I'm suggesting that the same applies to x86_vendor().  I
also prefer x86_cpuid_* to x86_*_cpuid because, once you add two
functions in the same family it's nice that they share a prefix.

Paolo

> Hmm, maybe I should make that more clear ...