Re: [Patch] x86-64: fix sibling map again!

[James Cleverdon]

I suppose not.  It seems a bit unnecessary, but OK if it makes
them happy.  Maybe Intel has something in mind for 2008.


On Saturday 30 October 2004 05:56 am, Andi Kleen wrote:
> On Fri, Oct 29, 2004 at 05:35:32PM -0700, James Cleverdon wrote:
> > Hey Suresh,
> >
> > Can you tell me why Intel considers cpuid to be The One True
> > Way(TM) to get sibling info?  Especially on x86-64, which
> > doesn't have the same level of APIC weirdness that i386 does.
> >
> > (I won't even mention the fact that someone messed up on the
> > MSR the BIOS can use to set bits 7:5 in the cpuid ID value.
> > It should allow the BIOS to set bits 7:3.)
>
> I have no great opinion on either ways, but I suppose
> it is best to do the same thing as i386 and apply Suresh's patch.
>
> James, any strong objections?
>
> -Andi

-- 
James Cleverdon
IBM LTC (xSeries Linux Solutions)
{jamesclv(Unix, preferred), cleverdj(Notes)} at us dot ibm dot comm

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