libvirt users - Oct 2014 - Fwd: Hotadd memory and hotplug cpu

Hello,

Does KVM support hotadd memory and hot-plug cpu?

I checked it using the virsh command but I can only increase the memory to
the maximum memory that is initially  set

But setmaxmem command is failing. Which means this require a reboot of the
guest

# virsh setmaxmem 4 1048576
error: Unable to change MaxMemorySize
error: Requested operation is not valid: cannot resize the maximum memory
on an active domain

#virsh setvcpus 4 4
error: internal error: unable to execute QEMU command 'cpu-add': Not
supported

Thanks
ravargs

On 10/15/14 17:31, ra va wrote:
> 
> Hello,
> 
> Does KVM support hotadd memory and hot-plug cpu?
>  
> I checked it using the virsh command but I can only increase the memory
> to the maximum memory that is initially  set
> 
> But setmaxmem command is failing. Which means this require a reboot of
> the guest
Memory hotplug was recently introduced into QEMU. I'm working on
implementing the support for that feature, but I didn't finish it yet,
so libvirt currently doesn't support it.

Peter