VGA device virtualization (SRIOV)

[Dhaks]

Hello Experts,

Does VirtualBox support IO Virtualization (SRIOV) ? and/or nested virtualization ?
Fundamentals seem to be there (?), ie., of being to instance multiple VGA devices but has anybody attempted to implement IO Virtualization on VirtualBox.

Thanks.

[mpack]

Nested virtualization - no.

I/O virtualization: Linux hosts only, and requires VT-d, and of course you can't give the VM ownership of something the host is using.