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SubjectRe: [PATCH -tip] x86: cpu/proc.c adding extended_cpuid_level for /proc/cpuinfo
Borislav Petkov wrote:
>>>
>> why we need cpuid_level ?
>
> It is already visible in userspace. I think you've got an answer to a
> very similar question already:
>
> http://marc.info/?l=linux-kernel&m=124206571628464
>

extended_cpuid_level should be motivated, but probably does make sense.
It hardly "completes" /proc/cpuinfo; especially if you consider that
there are at least three additional ranges in wide use (two used by a
single vendor only, and the third by virtualization software.)

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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