== Setup ==
=== Intel ===
Login as root, then execute the following:
<source lang='bash'>
cat > /etc/modprobe.d/nested-virtualization.conf << EOF
options kvm-intel nested=Y enable_shadow_vmcs=Y
EOF
</source>
You either have to reboot or <code>rmmod/modprobe</code> the corresponding module if no VM is running. For example:
rmmod kvm_intel
modprobe kvm_intel
=== AMD ===
Login as root, then execute the following:
<source lang='bash'>
cat > /etc/modprobe.d/nested-virtualization.conf << EOF
options kvm-amd nested=Y
EOF
</source>
You either have to reboot or <code>rmmod/modprobe</code> the corresponding module if no VM is running. For example: rmmod kvm_amd modprobe kvm_amd
== VM configuration ==
The following is largely untested, therefore this is more an instruction on how to figure out what the correct setting is.(hint: remove this line and update the configuration below if you have figured it out)
First try to start any VM and execute the following to see whether virtualization is available '''in the inside a Linux guest'''to see whether virtualization is available:
<source lang='bash'>