[Qemu-devel] Hot add vcpu not working in Windows server 2012r2

[Wuzongyong (Euler Dept)]

Hi,

I try to hot add vcpus to a windows server 2012r2 virtual machine on RHEL 7.4 
platform.
But Task Manager didn't show extra processors I hot added though they appeared 
in
Device Manager. Actually, I need to require reboot the vm to make processors hot
Added appear in Task Manager.
Is there some problem with redhat qemu? Why the processors I hot-added didn't 
online
automatically?
I don't know if I ask the right person or in a right mail list, apologize first 
if I bother you.

Thanks,
Zongyong Wu