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

From: H. Peter Anvin
Date: Fri Jun 05 2009 - 16:56:30 EST


Jaswinder Singh Rajput wrote:
> Hello Andrew,
>
> On Tue, 2009-05-12 at 23:21 -0700, Andrew Morton wrote:
>> On Tue, 12 May 2009 12:44:42 +0530 Jaswinder Singh Rajput <jaswinder@xxxxxxxxxx> wrote:
>>
>>> + "ext cpuid level\t: 0x%x\n"
>> It's unobvious what "ext" means. External?
>>
>> Can we make it "extended cpuid level"?
>
> extended cpuid level will look like this :
>
> fpu : yes
> fpu_exception : yes
> cpuid level : 5
> wp : yes
> extended cpuid level: 0x80000008
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pebs bts pni dtes64 monitor ds_cpl cid
>

The more I'm thinking about this I think it was a mistake to put cpuid
level: there in the first place, too. My opinion is increasingly to
leave this to x86info or other user-space tools.

-hpa
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