>>it might be a limitation of specific Windows edition, >>I've tested it with W2012R2 Datacenter edition where it's supported for sure.
>From the ovirt documentation: http://www.ovirt.org/Hot_plug_cpu It should work with any win2012 version. (Indeed for win2008, datacenter edition was needed) ----- Mail original ----- De: "Igor Mammedov" <imamm...@redhat.com> À: "aderumier" <aderum...@odiso.com> Cc: "qemu-devel" <qemu-devel@nongnu.org> Envoyé: Lundi 19 Janvier 2015 17:06:37 Objet: Re: [Qemu-devel] cpu hotplug and windows guest (win2012r2) On Fri, 9 Jan 2015 11:26:08 +0100 (CET) Alexandre DERUMIER <aderum...@odiso.com> wrote: > Hi, > > I'm currently testing cpu hotplug with a windows 2012R2 standard guest, > > and I can't get it too work. (works fine with linux guest). > > host kernel : rhel7 3.10 kernel > qemu 2.2 > > > qemu command line : -smp cpus=1,sockets=2,cores=1,maxcpus=2 > > Started with 1cpu, topogoly is 2sockets with 1cores. > > > Then > > qmp# cpu-add 1 > > > I can see a new cpu is windows device manager, and event log in the device > said that it's online. > > So it should be ok, but. > > I can't see new processor in taskmanager or perfmon. (I had tried to relaunch > them to be sure.). > > > So, it is a windows bug ? Does I need to do something else ? it might be a limitation of specific Windows edition, I've tested it with W2012R2 Datacenter edition where it's supported for sure. > > > > > > >
