need help about CPU offline/hotplug in Xen Unstable

need help about CPU offline/hotplug in Xen Unstable

[沈霆]

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I've noticed this section in Xen 3.4 News(
http://mail-index.netbsd.org/port-xen/2009/03/02/msg004800.html):

CPU offline/hotplug: Xen 3.4 can offline
physical CPUs on CPU-core granularity.
CPU hotplugging works on CPU granularity.
It's meant as an recover-action for the case
of machine-check errors. This feature
requires Dom0 support to utilize it.
This feature has been almost tested
on Intel-CPUs only.

Then I downloaded the stable version from xen.org and installed.
But since the document is not updated, I don't know the detail method
to offline a physical CPU.

Can anyone give me the hint? Thanks very much!

-- 
Yours Sincerely,
Ting Shen

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RE: need help about CPU offline/hotplug in Xen Unstable

[Jiang, Yunhong]

We have a tools to achieve that (i.e. xm command). But as Xen tree is closed now, so we are waiting for it be open again and will send it out.

--jyh

xen-devel-bounces@lists.xensource.com wrote:
> On 12/05/2009 15:47, "Ting Shen" <christieshum@gmail.com> wrote:
> 
>> Then I downloaded the stable version from xen.org <http://xen.org> 
>> and installed. But since the document is not updated, I don't know
>> the detail method to offline a physical CPU.
> 
> It's available as a library function (xc_cpu_offline) but not actually
> plumbed into a xm command, or other tool.
> 
> -- Keir
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

Re: need help about CPU offline/hotplug in Xen Unstable

[Keir Fraser]

On 12/05/2009 15:47, "Ting Shen" <christieshum@gmail.com> wrote:

> Then I downloaded the stable version from xen.org <http://xen.org>  and
> installed.
> But since the document is not updated, I don't know the detail method to
> offline a physical CPU.

It's available as a library function (xc_cpu_offline) but not actually
plumbed into a xm command, or other tool.

 -- Keir

need help about CPU offline/hotplug in Xen Unstable

[Ting Shen]

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I've noticed this section in Xen 3.4 News(
http://mail-index.netbsd.org/port-xen/2009/03/02/msg004800.html):

CPU offline/hotplug: Xen 3.4 can offline

physical CPUs on CPU-core granularity.
CPU hotplugging works on CPU granularity.
It's meant as an recover-action for the case
of machine-check errors. This feature
requires Dom0 support to utilize it.
This feature has been almost tested

on Intel-CPUs only.

Then I downloaded the stable version from xen.org and installed.
But since the document is not updated, I don't know the detail method to
offline a physical CPU.


Can anyone give me the hint? Thanks very much!

-- 
Yours Sincerely,
Ting Shen

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