On Thu, 18 Jul 2019, [email protected] wrote:

> On Sunday, 7 February 2016 23:12:25 UTC, [email protected]  wrote:
> > Input from the developers would be especially welcome.
> > 
> > I've been trying to enable nested virtualization in Qubes, which should be
> > possible without modifications, since Xen requires only the addition of
> > two lines to a conf file:
> > 
> > -------
> >      Make sure you have the right support
> >         Xen 4.4 or later
> >         Intel CPU with EPT support
> > 
> >     Add the following to your config file:
> > 
> >     hap=1
> >     nestedhvm=1
> > 
> >  (Cite: http://wiki.xenproject.org/wiki/Nested_Virtualization_in_Xen)
> > -------
> > 
> > 1) What's the preferred way to accomplish this in Qubes?
> > 
> > 2) It looks like the template packages qubes-gui-vm, xen-qubes-vm, and
> > xen-libs are set up to block installation of other in-guest virtualization
> > packages like qemu/libvirt (requiring the former to be removed for any
> > experimentation to proceed). It happens on both the fedora and debian.
> > Removing those packages would cause problems interacting with dom0. What's
> > going on here?
> > 
> > Thank you.
> 
> Cool but where is that config file located???

IIRC, the xen package is built in Qubes with nested virtualization 
disabled by default to reduce attack surface so you'd need to compile
it yourself.


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 i.

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