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Date: Fri, 13 Apr 2018 15:38:57 +0200
From: Igor Mammedov <imammedo@redhat.com>
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Subject: Re: [Qemu-devel] Hot add vcpu not working in Windows server 2012r2
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To: "Wuzongyong (Euler Dept)" <cordius.wu@huawei.com>
Cc: "Wanzongshun (Vincent)" <wanzongshun@huawei.com>, huangfeiqing <huangfeiqing@huawei.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

On Fri, 13 Apr 2018 03:14:44 +0000
"Wuzongyong (Euler Dept)" <cordius.wu@huawei.com> wrote:

> 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.
It might depend on particular edition of windows server you are running.
I usually test it with 'data server' edition where it supposed to work.
Could you check if that works?

> 
> Thanks,
> Zongyong Wu
>