On Fri, Jan 9, 2015 at 1:26 PM, 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 ? >
Did you populated appropriate topology in arguments? As far as I can remember from pre-1.1 era CPU hotplug not worked with windows, so it should be neither lack of configured NUMA or a simply OS-specific issue.
