* need help about CPU offline/hotplug in Xen Unstable
@ 2009-05-12 14:44 沈霆
0 siblings, 0 replies; 4+ messages in thread
From: 沈霆 @ 2009-05-12 14:44 UTC (permalink / raw)
To: xen-devel
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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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^ permalink raw reply [flat|nested] 4+ messages in thread
* need help about CPU offline/hotplug in Xen Unstable
@ 2009-05-12 14:47 Ting Shen
2009-05-12 15:02 ` Keir Fraser
0 siblings, 1 reply; 4+ messages in thread
From: Ting Shen @ 2009-05-12 14:47 UTC (permalink / raw)
To: xen-devel
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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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[-- Attachment #2: Type: text/plain, Size: 138 bytes --]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: need help about CPU offline/hotplug in Xen Unstable
2009-05-12 14:47 Ting Shen
@ 2009-05-12 15:02 ` Keir Fraser
2009-05-13 2:01 ` Jiang, Yunhong
0 siblings, 1 reply; 4+ messages in thread
From: Keir Fraser @ 2009-05-12 15:02 UTC (permalink / raw)
To: Ting Shen, xen-devel
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
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: need help about CPU offline/hotplug in Xen Unstable
2009-05-12 15:02 ` Keir Fraser
@ 2009-05-13 2:01 ` Jiang, Yunhong
0 siblings, 0 replies; 4+ messages in thread
From: Jiang, Yunhong @ 2009-05-13 2:01 UTC (permalink / raw)
To: Keir Fraser, Ting Shen, xen-devel
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
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-05-13 2:01 UTC | newest]
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2009-05-12 14:44 need help about CPU offline/hotplug in Xen Unstable 沈霆
2009-05-12 14:47 Ting Shen
2009-05-12 15:02 ` Keir Fraser
2009-05-13 2:01 ` Jiang, Yunhong
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