Re: [Qemu-devel] KVM call for agenda for 2016-02-16

[Thomas Huth <thuth@redhat.com>]

On 17.02.2016 23:51, Juan Quintela wrote:
> Eduardo Habkost <ehabkost@redhat.com> wrote:
>> On Tue, Feb 16, 2016 at 12:54:57PM +0100, Christian Borntraeger wrote:
>>> So my quick and dirty summary of CPU as _I_ understand it
>>> (and I only have some part time bandwidth at the moment for that)
>>>
>>> x86 has cpu hotplug. Some history
>>> qemu-kvm had cpu_set in the past
>>> qemu has cpu_add for a while now
>>> libvirt code uses cpu_add cross-platform out of the box
>>>
>>> proposal to use device_add. Currently this has the following issues that
>>> we need to discuss:
>>> - will require capability checking and dual code in libvirt (and libvirt updates)
>>> - Power has some constraints that are hard to model with just device add
>>> 	- David Gibson proposes a two layer interface
>>> 		- low level: device add cpu-package
>>> 		- high level
>>> - David Hildenbrand has some concerns regarding CPU models (with base model + feature
>>>   on/off), as device_add needs instantiatable type
>>> - devel_del: s390 has no interface for cpu removal (Matts latest patches reset the 
>>> machine just like z/VM - until we have some interface)
>>> - anything else? (cpu hotplug on ARM or MIPS?)
>>>
>>> Would be good to use todays call to have a plan how to finish things soon.
>>> (maybe even for 2.6)
>>
>> Did the call happen? I am away from work for most days during the
>> next 2 weeks, so I couldn't attend.
> 
> Yeap.  I sent some minutes, but they are kind of incoherent, I hope that
> Andreas or Christian fill the holes...

 Hi Juan,

did you sent the minutes to the mailing list? ... In case you did not
sent it to the list yet, could you please do so, so we've got a base for
further discussion? (and if you did already, could you please point me
to the right mail?)

Thanks a lot!

 Thomas