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Re: [Xen-devel] Genapic

To: "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>
Subject: Re: [Xen-devel] Genapic
From: Andi Kleen <ak@xxxxxx>
Date: 18 May 2005 18:36:26 +0200
Date: Wed, 18 May 2005 18:36:26 +0200
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, "Davis, Jason" <jason.davis@xxxxxxxxxx>, "Vessey, Bruce A" <Bruce.Vessey@xxxxxxxxxx>, "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx>
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On Wed, May 18, 2005 at 11:45:20AM -0400, Puthiyaparambil, Aravindh wrote:
> Genapic is done differently for i386 and x86_64 in the LK. In i386 it is
> machine specific and in x86_64 it is APIC model specific. Do you want
> Xen to mimic that? Further more both i386 and x86_64 have separate

The x86-64 model is better.

> apic.c, io_apic.c (just to name a couple) files. Xen shares them between
> the two. Will that cause any problems? 
> 
> I am wondering if it is possible to have a unified genapic for Xen. Or
> is it way too complicated?

I hope the plan is to still integrate xen support into arch/i386
and arch/x86_64. Then the problem won't occur.

-Andi

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