Hi folks. So... I read the documentation in many sites and this forum too, buuut the nested feature do not worked yet. *My host oVirt so far:* cat /sys/module/kvm_intel/parameters/nested 1 Kernel parameters edited by Engine on *Edit Host -> Kernel*. Reinstall the host and reboot. *cat /proc/cmdline* BOOT_IMAGE=(hd0,msdos1)//ovirt-node-ng-4.4.10.2-0.20220303.0+1/vmlinuz-4.18.0-365.el8.x86_64 crashkernel=auto resume=/dev/mapper/onn-swap rd.lvm.lv=onn/ovirt-node-ng-4.4.10.2-0.20220303.0+1 rd.lvm.lv=onn/swap rhgb quiet root=/dev/onn/ovirt-node-ng-4.4.10.2-0.20220303.0+1 boot=UUID=07e688ed-8d46-4932-b070-378c75ba1921 rootflags=discard img.bootid=ovirt-node-ng-4.4.10.2-0.20220303.0+1 kvm-intel.nested=1 *On VM guest:* Host set to "Specific Host" and "Pass-Through Host CPU" vmx is ok *root@kceve01:~# kvm-ok* INFO: /dev/kvm exists KVM acceleration can be used *Result:* I am trying to virtualize the EVE-NG. I can start the guest of the EVE-NG, but I don't know why I can't access it. It's like blocking any package... I don't know yet if it is a virtualization problem or network problem... If you have other tips for me, I glad, very glad. All the best! -- Att, Jorge Visentini +55 55 98432-9868