It actually does work for limited use cases. I sometimes run Qubes
inside Qubes for quickly testing things ;) The outer VM must be HVM,
and the inner-inner VMs must be PVM, or else you must enable some
less-tested and potentially dangerous code paths in Xen (nestedhvm=1)
which Qubes (on purpose)
Nested Virtualization seems to work generally well, albeit slower, even with
different hypervisors.
Despite the advice given in the install docs:
> Note: We don’t recommend installing Qubes in a virtual machine! It will
> likely not work.
I tried it an the Kernel comes up, as does the
