2009-06-05 19:19:17

by Jaswinder Singh Rajput

[permalink] [raw]
Subject: Re: [PATCH -tip] x86: cpu/proc.c adding extended_cpuid_level for /proc/cpuinfo

On Tue, 2009-05-12 at 09:40 -0700, H. Peter Anvin wrote:
> 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.)
>

So how can we complete it.

--
JSR