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Re: [Xen-devel] Re: [PATCH 0/2] Add hypercall interface for cpu online/o

To: Christoph Egger <Christoph.Egger@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH 0/2] Add hypercall interface for cpu online/offline
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Mon, 22 Sep 2008 10:43:12 +0100
Cc: "Shan, Haitao" <haitao.shan@xxxxxxxxx>
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Thread-topic: [Xen-devel] Re: [PATCH 0/2] Add hypercall interface for cpu online/offline
User-agent: Microsoft-Entourage/
online/offline is the usual terminology for CPU hotplug. If we need a
separate operation to merely stop scheduling on that pCPU (which isn't
immediately apparent to me) then we'll come up with a name for it.

 -- Keir

On 22/9/08 10:34, "Christoph Egger" <Christoph.Egger@xxxxxxx> wrote:

> Please rename offline to poweroff and use offline for
> de-coupling the physical CPU from the Xen scheduler only.
> This is useful for machine check handling.
> Christoph
> On Monday 22 September 2008 10:48:17 Keir Fraser wrote:
>> Should be a sysctl. platform_ops are for things we want controlled by,
>> typically, dom0 kernel. This will be controlled from tools.
>>  -- Keir
>> On 22/9/08 09:45, "Shan, Haitao" <haitao.shan@xxxxxxxxx> wrote:
>>> Hi, Keir,
>>> These two little patches will add a hypercall interface for cpu
>>> online/offline.
>>> Currently, I add it to Xen platform ops hypercall. I am not sure whether
>>> it is the proper place to hold this. So, any comments or preference from
>>> you? Thanks.

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