Re: [PATCH -v5] x86/kvm: Implement HWCR support

[Borislav Petkov]

On Mon, Apr 08, 2019 at 07:41:15AM -0700, Sean Christopherson wrote:
> > +{
> > +	if (guest_cpuid_is_amd(vcpu)) {
> > +		struct msr_data tmp;
> > +
> > +		tmp.index = MSR_K7_HWCR;
> > +
> > +		if (kvm_get_msr_common(vcpu, &tmp))
> 
> No need to get through kvm_get_msr_common(), vcpu->arch.msr_hwcr can be
> queried directly.  Going that route would likely eliminate the need for a
> helper func, i.e. avoid the naming confusion and the comment below.

Agree with every point except this: the helper function abstracts
the guest cpuid check and the rest of the handling nicely. If I put
everything in an already too big default: label in set_msr_mce(), then
the code there will become even more unreadable than it is.

Thx.

-- 
Regards/Gruss,
    Boris.

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