From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40038) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aY9lA-0005Nk-Rr for qemu-devel@nongnu.org; Tue, 23 Feb 2016 05:00:01 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aY9l7-00045z-Dh for qemu-devel@nongnu.org; Tue, 23 Feb 2016 05:00:00 -0500 Received: from mx1.redhat.com ([209.132.183.28]:49120) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aY9l7-00045v-7f for qemu-devel@nongnu.org; Tue, 23 Feb 2016 04:59:57 -0500 From: Juan Quintela In-Reply-To: <56CB5B43.1060301@redhat.com> (Thomas Huth's message of "Mon, 22 Feb 2016 20:02:27 +0100") References: <871t8kpo6j.fsf@emacs.mitica> <56C30E11.8040606@de.ibm.com> <20160217204047.GD10796@thinpad.lan.raisama.net> <87mvqz54sc.fsf@emacs.mitica> <56CB5B43.1060301@redhat.com> Date: Tue, 23 Feb 2016 10:59:51 +0100 Message-ID: <87lh6bagrs.fsf@emacs.mitica> MIME-Version: 1.0 Content-Type: text/plain Subject: Re: [Qemu-devel] KVM call for agenda for 2016-02-16 Reply-To: quintela@redhat.com List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Thomas Huth Cc: QEMU Developers , KVM devel mailing list , Andreas =?utf-8?Q?F=C3=A4rber?= Thomas Huth wrote: > On 17.02.2016 23:51, Juan Quintela wrote: >> Eduardo Habkost 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! Just resent, I did it to the wrong address, sorry. Later, Juan. > > Thomas