linux-kernel - Re: [PATCH] Option to disable AMD C1E (allows dynticks to work)

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Message-ID: <alpine.LFD.0.99999.0712142051220.3668@localhost.localdomain>
Date:	Fri, 14 Dec 2007 20:53:18 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andi Kleen <andi@...stfloor.org>
cc:	Eduard-Gabriel Munteanu <eduard.munteanu@...ux360.ro>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Option to disable AMD C1E (allows dynticks to work)

On Fri, 14 Dec 2007, Andi Kleen wrote:

> > LAPIC is seemingly disabled (C1E detection code does this), but
> 
> It should only disable the LAPIC timer, but not the full use of the
> LAPIC. 

That's what it does. The LAPIC timer is invalidated and registered as
a per CPU broadcast dummy source (CLOCK_EVT_FEAT_DUMMY).

Thanks,

	tglx
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