linux-kernel - Re: [RFC -tip] x86,apic -- reduce disable

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Message-ID: <4A50E323.6060109@zytor.com>
Date:	Sun, 05 Jul 2009 10:30:11 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Maciej W. Rozycki" <macro@...ux-mips.org>
CC:	Cyrill Gorcunov <gorcunov@...nvz.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Yinghai Lu <yinghai@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC -tip] x86,apic -- reduce disable_apic usage

Maciej W. Rozycki wrote:
> 
>  How do you set cpu_has_apic for systems with discrete local APICs?  The 
> CPUID flag is not set in this case.
> 

Well, should it be?  We do set flags when they're appropriate to us, and
if the semantics are such as that is inappropriate we can set a custom bit.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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