linux-kernel - Re: [PATCH] x86: update mptable v7

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Date:	Mon, 9 Jun 2008 21:09:11 +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>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: update mptable v7 - fix


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

> thanks. So X86_MPPARSE is not needed when SMP is not enabled?

here's the condition:

config X86_MPPARSE
        def_bool y
        depends on (X86_32 && (X86_LOCAL_APIC && !X86_VISWS)) || X86_64

64-bit has it unconditionally, 32-bit has it on SMP, UP-IOAPIC or 
UP-local-APIC mode. [ (and VISWS is an ugly complication we should try 
to eradicate similarly to NUMAQ, if possible :-) ]

	Ingo
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