Is it possible to create a bhyve virtual disk which is pointed at an actual physical disk which already has an operating system installed on it? In my case I have 4 drives, one for FreeBSD and 3 from my old Windows installation, I would like to use bhyve to do PCI passthrough for a graphics card on demand while keeping the ability to dual-boot back into Windows if desired at some point (plus not wanting to reinstall and configure everything. I've gotten this working without PCI passthrough using virtualbox, but unfortunately that doesn't cut it for UE4 or gaming in general so I'm looking at bhyve as an option.