Well… you can passthrough a pci device to a guest in OVM. It's some manual work, which you will need to to, but is possible. Also, OVMM will not let you configure that via the UI, you will have to modify the vm.cfg on your own. Afair, there needed to be a kernel module to be loaded, but that was on an older version of OVM.
You should be able to dig up my old posts about that in the search, though.
P.S: found it: OVM_311: pciback module gone?
Great information. Thank you.
I will test the solution in the coming days.