Keir Fraser wrote:
> On 12/02/2010 09:50, "Liu, Jinsong" <jinsong.liu@xxxxxxxxx> wrote:
>
>>> You can see that xen-unstable tip can do this now. But I don't want
>>> to start dumping in loads of alternative DSDTs, as each one is a
>>> fair size. What I'm hoping is that this Linux regression is fixed
>>> fairly swiftly, and we can hence ignore it. :-) If not, we can
>>> think about what to do. 
>>> 
>>> -- Keir
>> 
>> Yes, we hope so :)
>> Compared with linux 2.6.30, 2.6.32 change a lot at processor_hotplug
>> path, but still not clean to support \_PR processor, while both
>> versions seems work well for \_SB processor. Win2k8 is similar
>> situation. 
>
> Win2k8 has a similar problem?
>
> -- Keir
Yes. Yunhong test Win2k8, and found in Win2k8 data center version, cpu hotplug 
successed for _SB definition, but failed for _PR definition. (success mean, 
after we hot-add vcpu, the device manager will shown new processor, but the 
task manager has no changes, same as 
http://www.boche.net/blog/index.php/2009/05/10/vsphere-memory-hot-add-cpu-hot-plug/
 .Fail mean even the device manager has no changes).
Thanks,
Jinsong
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