[ovirt-users] Nested KVM: what is the correct setup

[ovirt at fateknollogee.com]

Host: CentOS-7_v1611 (or Fedora 25 -my personal fav)
VMs: oVirt nodes v4.1.2

To setup nested KVM, I follow these 
instructions(https://pve.proxmox.com/wiki/Nested_Virtualization)

to check if is enabled do ("kvm_intel" for intel cpu, "kvm_amd" for AMD)
-root at proxmox:~# cat /sys/module/kvm_intel/parameters/nested
N
(N means it's not, to enable ("kvm-intel" for intel, "kvm-amd" for 
AMD):)

# echo "options kvm-intel nested=Y" > /etc/modprobe.d/kvm-intel.conf
and reboot or reload the kernel modul

modprobe -r kvm_intel
modprobe kvm_intel
check again

-root at proxmox:~# cat /sys/module/kvm_intel/parameters/nested
Y

Question: what other settings need to be enabled in the guest vm?
See "test nested virt" at 
https://fedoraproject.org/wiki/How_to_enable_nested_virtualization_in_KVM
Do we need this setting in the vm?