linux-kernel - Re: [PATCH] x86: introduce max_physical

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Date:	Tue, 10 Jun 2008 11:53:59 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: introduce max_physical_apicid for bigsmp switching


* Yinghai Lu <yhlu.kernel@...il.com> wrote:

> one multi-sockets system with 3 or 4 ioapics, when 4 dualcore cpus or 
> 2 quadcore cpus installed, need to switch to bigsmp or physflat. 
> because cpu apic id is [4,11] instead of [0,7], and we need to check 
> max apic id instead of cpu numbers.
> 
> also add check for 32 bit when acpi is not compiled in or acpi=off

applied to tip/x86/mpparse, thanks.

	Ingo
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