The Libvirt installation uses virt-install command. We can also use virt-manger GUI. Even if the installation is done through the virt-install command, we can use virt-manager to access the machine using the SSH connection.
This can be checked using the virt-host-validate command from the VM itself. The output of the command should provide QEMU: Checking for hardware virtualization : PASS.
IMPORTANT
The ISO boot will erase ALL the data on the /dev/sda disk and install OpenShift Network Playground automatically.