RE: [Xen-devel] Re: [PATCH] libxc: remove CPUID core information mangling

["Huang2, Wei" <Wei.Huang2@xxxxxxx>]

Hi Keir,

Do you mean that we should leave 80000008:ECX[15:12] as zero or in old way 
(i.e. (regs[2] & 0xf000u) + 1))? These bits can't be zero, unless we want to 
use legacy method in multi-core calculation.

-Wei

========
I think you shouldn't change handling of 80000008:ECX[15:12] since that does
explicitly refer to APIC ID arrangement. The rest of your changes could be
correct as far as I can tell from the reference manuals.

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