[arch-general] Virtualbox hosting qemu-kvm guests

[Lukas Jirkovsky]

On 20 November 2012 19:34, Steve P. <public at milehightexas.net> wrote:
> Hi
>
> This is my first posting so bear with me.
>
> I am trying to get qemu-kvm to work inside Virtualbox, but when I try to
> #modprobe the kvm-intel or kvm_intel module, it errors stating that
> operation is not permitted.
>
> Is qemu known to run inside virtualbox? The host hardware is an i7 that
> supports hardware virtualization fine.
>
> I have qemu running natively on the same box so it is confusing, but want
> to use VB also.
>
> Thanks in advance.

That can't work, because you don't have access to the HW
virtualization from the guest.

That's because CPU virtualization is basically nothing more than an
additional CPU ring (ring-1) where the guest runs. To allow guests in
guests in guests... there would have to be recursion in the HW itself
(which I dare to say is impossible, there will always be a limit).

Lukas