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Configure an existing VM to allow nested virtualization: running performant VMs inside another VM, with access to the host's virtualization extensions.


Virt capable host, F19+ VM and F19+ host.

How to test

  1. Start with a shutoff VM
  2. Open virt-manager, go to the VM details page for that VM.
  3. Click on the CPU page.
  4. Click 'Copy host cpu', then 'Apply'
  5. Start the VM
  6. Inside the VM, do sudo yum groupinstall virtualization
  7. Verify that the guest has virt correctly setup with: sudo virt-host-validate

Additional info and tests

If you're using an Intel processor:

If you're using an AMD processor:

Expected Results

No obvious errors occur.