[coreboot-gerrit] [XS] Change in coreboot[main]: arch/x86/include/arch: Add feature check macros

[Jérémy Compostella (Code Review)]

Attention is currently required from: Jincheng Li, Shuo Liu.

Jérémy Compostella has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81133?usp=email )

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Change subject: arch/x86/include/arch: Add feature check macros
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Patch Set 1:

(2 comments)

Patchset:

PS1: 
Do you have code using them ? Adding declaration which are not used at all is a bit confusing.

File src/arch/x86/include/arch/cpu.h:

https://review.coreboot.org/c/coreboot/+/81133/comment/26d407d1_d8b90918 :
PS1, Line 54: #define CPUID_FEATURE_HTT (1 << 28)
The typo fix should in a separate clean-up patch.
Also I recommend use the BIT macro instead of the manual bit shift construction.