[Skiboot] support for CPU hotplug?

Dan Streetman ddstreet at us.ibm.com
Fri Mar 6 09:10:40 AEDT 2015

On 2015-03-05 15:48, Benjamin Herrenschmidt wrote:
> On Thu, 2015-03-05 at 12:34 -0500, Dan Streetman wrote:
>> I'm wondering, do we support CPU hotplug in skiboot?  I don't know
>> enough about the HW to know if it's possible, but if it is and skiboot
>> supports it then I need to update the NX code to add/remove 
>> coprocessors
>> on hotplug...
> No we don't. At least not physical hotplug. Linux can "unplug" cores by
> putting them into a very low power sate but that's about it.

Cool, that makes things much easier :)

> Cheers,
> Ben.

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