[root@kvm-hypervisor ~]# cat /sys/module/kvm_intel/parameters/nested
N

 

[root@kvm-hypervisor ~]# vi /etc/modprobe.d/kvm-nested.conf
options kvm-intel nested=1
options kvm-intel enable_shadow_vmcs=1
options kvm-intel enable_apicv=1
options kvm-intel ept=1

 

[root@kvm-hypervisor ~]# reboot

[root@kvm-hypervisor ~]# cat /sys/module/kvm_intel/parameters/nested
Y

 

Reference

How to enable Nested Virtualization in KVM on CentOS 7 / RHEL 7

How to enable Nested Virtualization in KVM on CentOS 7 / RHEL 7

 

RHEV-M with nested VM for OSP

https://iranzo.github.io/blog/2015/07/17/rhev-m-with-nested-vm-for-osp/

vdsm-hook-nestedvt, vdsm-hook-macspoof

After it boots, egrep 'svm|vmx' /proc/pcuinfo should show the flags there.

Nested Virtualization in KVM(RHV)

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