From: Andi Kleen <ak@suse.de>
To: James Cleverdon <jamesclv@us.ibm.com>
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 14:56:04 +0200 [thread overview]
Message-ID: <20041030125604.GF14735@wotan.suse.de> (raw)
In-Reply-To: <200410291735.32175.jamesclv@us.ibm.com>
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
next prev parent reply other threads:[~2004-10-30 13:00 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 [this message]
2004-10-30 23:15 ` James Cleverdon
2004-10-31 1:33 ` Andi Kleen
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