linux-kernel - Re: [PATCH] x86: do_boot_cpu - add check if we have ESR register

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Date:	Mon, 22 Sep 2008 11:37:21 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Cyrill Gorcunov" <gorcunov@...il.com>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: do_boot_cpu - add check if we have ESR register

On Mon, Sep 22, 2008 at 3:15 AM, Cyrill Gorcunov <gorcunov@...il.com> wrote:
> [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
> |
>
> Yinghai what was the reason of this question? I've a suspicious
> you're planning to test apic version early and only _once_ so
> eliminating APIC_INTERGRATED call? Am I right?

want to put more thing in genapic...

YH
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