Use para-virtualization drivers

[mario-campos]

virtio-net

• [x] freebsd-13.0
• [ ] netbsd-9.2
• [ ] openbsd-7.1
• [ ] openbsd-7.0

virtio-scsi

• [ ] freebsd-13.0
• [ ] netbsd-9.2
• [ ] openbsd-7.1
• [ ] openbsd-7.0

[mario-campos]

I was able to enable a virtio virtual NIC on freebsd-13.0 (but not a virtio storage controller) in commit 4acff140db93894fd53ab185f8fd98caf64b62df.

[mario-campos]

Trying to use the virtio storage-controller interface (hard_drive_interface = "virtio") leads to this export error:

==> virtualbox-iso.default: Error exporting virtual machine: VBoxManage error: VBoxManage: error: Cannot handle medium attachment: storageBus is 8, channel is 0, device is 0
==> virtualbox-iso.default: VBoxManage: error: Details: code VBOX_E_NOT_SUPPORTED (0x80bb0009), component MachineWrap, interface IMachine, callee nsISupports
==> virtualbox-iso.default: VBoxManage: error: Context: "ExportTo(pAppliance, Bstr(pszAbsFilePath).raw(), pVSD.asOutParam())" at line 1786 of file VBoxManageAppliance.cpp