Hi all I am running OLVM 4.5, this is a test setup which was running in my old workstation with Intel CPU and is nested virtualization (with VMWare Workstation), the host was running Windows 7 x64, I moved to AMD Ryzen 7950X3D a couple of days ago which runs Windows 11 x64 with 128GB memory then moved OLVM VM's from the old workstation to this new workstation. The problem I face now is the KVM hosts shows this error *Host kvm1 moved to Non-Operational state as host CPU type is not supported in this cluster compatibility version or is not supported at all* I modified /etc/modprobe.d/kvm.conf and changed options kvm_amd nested=0 to options kvm_amd nested=1 reboot the kvm host but still getting same error, I verified the modification and seems good [root@kvm1 ~]# cat /sys/module/kvm_amd/parameters/nested 1 In Windows 11 I have hyper-v off and Memory Integrity is also off. Am I missing any additional steps? Thanks