<div dir="ltr"><div dir="ltr">On Fri, Feb 14, 2020 at 4:54 PM Lentes, Bernd <<a href="mailto:bernd.lentes@helmholtz-muenchen.de">bernd.lentes@helmholtz-muenchen.de</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
qemu-kvm-2.11.2-5.18.1.x86_64<br><br></blockquote><div>[...] </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
I found a table on <a href="https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/html/virtual_machine_management_guide/cpu_hot_plug" rel="noreferrer" target="_blank">https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/html/virtual_machine_management_guide/cpu_hot_plug</a><br>
saying that hotplugging is possible but no hotunplugging.<br>
But i don't know how recent this information is and if RedHat uses libvirt/qemu.<br>
<br></blockquote><div> </div><div>RHV uses a special version of qemu-kvm named qemu-kvm-rhev.</div><div>oVirt, the upstream product of RHV, uses a rebuilt package named qemu-kvm-ev.</div><div>Eg in oVirt 4.3.8, that is the latest stable release available right now and should apply to your doc link limitations is qemu-kvm-ev-2.12.0-33.1.el7_7.4.x86_64</div><div>What is the OS of your hypervisor?</div><div>In case of CentOS 7 and not a production one, you could enable the repo from CentOS-SIG-Virtualization like this:</div><div><a href="https://wiki.centos.org/SpecialInterestGroup/Virtualization">https://wiki.centos.org/SpecialInterestGroup/Virtualization</a><br></div><div><br></div><div>A repo entry is this one below:</div><div><br></div><div>[ovirt-4.3-centos-qemu-ev]<br>name=CentOS-7 - QEMU EV<br>baseurl=<a href="http://mirror.centos.org/centos/7/virt/$basearch/kvm-common/">http://mirror.centos.org/centos/7/virt/$basearch/kvm-common/</a><br>gpgcheck=1<br>enabled=1<br>gpgkey=<a href="https://www.centos.org/keys/RPM-GPG-KEY-CentOS-SIG-Virtualization">https://www.centos.org/keys/RPM-GPG-KEY-CentOS-SIG-Virtualization</a><br></div><div><br></div><div>Then deinstall qemu-kvm and install qemu-kvm-ev.</div><div>I don't remember if yum would detect qemu-kvm as an "obsolete" version of qemu-kvm-ev, probably yes and in this case you would only need to run</div><div>yum install qemu-kvm-ev </div><div>and it will replace the old.</div><div>Browse the repo packages in case, because it would bring in for example also another version of seabios (I don't see libvirt packages in between).</div><div>But anyway for your special case also with qemu-kvm-ev it seems no Windows OS is supported for hot unplug.</div><div>HIH,</div><div>Gianluca</div></div></div>