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Date: Mon, 22 Sep 2008 14:04:32 +0400
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>, "Maciej W. Rozycki" <macro@linux-mips.org>,
       LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: do_boot_cpu - add check if we have ESR register
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[Yinghai Lu - Mon, Sep 22, 2008 at 02:57:17AM -0700]
| >
| > Actually it's resend of the patch. On previous attempt
| > Yinghai was proposed to choose:
| >
| >> one apic_version or boot_cpu_apic_version could be enough
| >
| > but I think it should be different patch which does cleaning
| > up variables usage. So for now I think _this_ patch is enough
| > since idea is to prevent of touching nonexistant register rather
| > code cleaning (whci could be done later).
| 
| do we have systems that have mixed cpu supported with different apic version?
| 
| YH
| 

I don't think it's possible on a single motherboard. For integrated
apics it will require different families of cpu.

		- Cyrill -