Subject: Re: [PATCH 0/7] KVM: Suspend and cpu hotplug fixes
From: Shaohua Li <shaohua.li@intel.com>
To: Avi Kivity <avi@qumranet.com>
Cc: kvm-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org,
       lhcs-devel@lists.sourceforge.net
In-Reply-To: <1180008615579-git-send-email-avi@qumranet.com>
References: <1180008615579-git-send-email-avi@qumranet.com>
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Date: Fri, 25 May 2007 09:10:32 +0800
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On Thu, 2007-05-24 at 20:10 +0800, Avi Kivity wrote:
> The following patchset makes kvm more robust wrt cpu hotunplug, and
> makes suspend-to-ram actually work.  Suspend-to-disk benefits from
> the cpu hotunplug improvements as well.
> 
> The major issue is that KVM wants to disable the virtualization
> extensions at a point in time when no user processes are schedulable
> on the victim cpu.  No current notifier exists, so a new one,
> CPU_DYING,
> is added for the purpose.
> 
> Should there be no objections, I will submit this patchset for
> inclusion
> in 2.6.22, and backport it to 2.6.21.stable.
Is it possible disabling kvm can be done at the begining of play_dead?
take_cpu_done is designed to run fast.

Thanks,
Shaohua
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