linux-kernel - Re: [PATCH 0/8] Online/offline BSP on x86

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Message-ID: <1317842195.6766.40.camel@twins>
Date:	Wed, 05 Oct 2011 21:16:34 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Fenghua Yu <fenghua.yu@...el.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	H Peter Anvin <hpa@...or.com>,
	Zwane Mwaikambo <zwane@....linux.org.uk>,
	Tony Luck <tony.luck@...el.com>,
	Asit K Mallick <asit.k.mallick@...el.com>,
	Suresh B Siddha <suresh.b.siddha@...el.com>,
	Len Brown <lenb@...nel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/8] Online/offline BSP on x86

On Wed, 2011-10-05 at 09:39 -0700, Fenghua Yu wrote:
> 
> BSP or CPU0 has been the last obstacle to CPU hotplug on x86. This patch set
> implements BSP online and offline and removes this obstacle to CPU hotplug.

Are you talking about physical cpu hotplug on x86? And you need to
offline the BSP so you can replace socket0 ?
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