Re: embedded emulation: bhyve + vt-x on amd fx-8320

On Sat, Apr 22, 2023 at 11:16 PM Dale Scott wrote:
> From the handbook https://docs.freebsd.org/en/books/handbook/virtualization/#virtualization-host-bhyve
>
> "The easiest way to tell if a processor supports bhyve is to run dmesg or look in /var/run/dmesg.boot for the POPCNT processor feature flag on the Features2 line for AMD® processors or EPT and UG on the VT-x line for Intel® processors."
>
> Unfortunately it seems you might be out of luck.

Well, on FreeBSD I am able to start VM with both vbox and bhyve.. but
the problem is with that "NESTED VIRTUALIZATION" (this seems to be the
proper name) that does not seem to work.

So I did setup a, yuck, windoze, just to see in practice if "nested
virtualization" works on other OS on the same hardware. I did install
windoze, then VBox, then created Linux Debian 11 virtual machine, then
installed Android Studio on that vm, then launched Virtual Android
Device and IT WORKED! o_O

So my AMD FX-8320 CPU seems to support "nested virtualization" (its
called VT-D for Intel and AMD-V for AMD).

Question is why Nested Virtualization does not work on FreeBSD?

Should I set it up somehow? Is it supported here at all?

Any hints appreciated :-)

-- 
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info