enabling nested virtualization in KVM to be able to use kubevirt.io project

[dwojciec]

After enabling "nested virtualisation in KVM" following this link (change N to Y in /sys/module/kvm_intel/parameters/nested file).
https://docs.fedoraproject.org/quick-docs/en-US/using-nested-virtualization-in-kvm.html

[root@CentOS-74-64-minimal ~]# cat /sys/module/kvm_intel/parameters/nested
N

After rebooting on the hetzner server I added all this package on my 3 OCP servers.

yum groupinstall -y "Virtualization Hypervisor"
yum install -y virt-install virt-top libguestfs-tools

one done I followed this link to setup kubevirt demo
http://www.kubevirt.io/get_kubevirt/#kubernetes_cluster
Deploying KubeVirt on OpenShift Origin