Saturday, April 16, 2016

How to enable nested VM in KVM

1. Uncomment below line in /etc/modprobe.d/kvm.conf
options kvm_intel nested=1


[root@localhost ~]# cat /etc/modprobe.d/kvm.conf 
###
### This configuration file was provided by the qemu package.
### Feel free to update as needed.
###

###
### Set these options to enable nested virtualization
###

options kvm_intel nested=1
#options kvm_amd nested=1


2. Remove and Add the kvm_intel module

modprobe -r kvm_intel
modprobe  kvm_intel


3. Verify whether the change has been applied or not,

cat /sys/module/kvm_intel/parameters/nested
Y

4.Use 'Copy host CPU configuration' in VM's CPU configurations

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