[[proc_testing-nested-virtualization]] = Testing nested virtualization . Start the virtual machine. . On the virtual machine, run: + ---- sudo dnf group install virtualization ---- + . Verify that the virtual machine has virtualization correctly set up: + ---- sudo virt-host-validate QEMU: Checking for hardware virtualization : PASS QEMU: Checking if device /dev/kvm exists : PASS QEMU: Checking if device /dev/kvm is accessible : PASS QEMU: Checking if device /dev/vhost-net exists : PASS QEMU: Checking if device /dev/net/tun exists : PASS ... ----