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From: James Cleverdon <jamesclv@us.ibm.com>
To: Andi Kleen <ak@suse.de>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>,
	ak@suse.de, akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [Patch] x86-64: fix sibling map again!
Date: Sat, 30 Oct 2004 16:15:23 -0700	[thread overview]
Message-ID: <200410301615.23066.jamesclv@us.ibm.com> (raw)
In-Reply-To: <20041030125604.GF14735@wotan.suse.de>

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


  reply	other threads:[~2004-10-30 23:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-30  0:02 [Patch] x86-64: fix sibling map again! Suresh Siddha
2004-10-30  0:35 ` James Cleverdon
2004-10-30 12:56   ` Andi Kleen
2004-10-30 23:15     ` James Cleverdon [this message]
2004-10-31  1:33 ` Andi Kleen

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