bhyve: GPU passthrough for Nvidia cards

Hi,

I'm currently experimenting with GPU passthrough for Nvidia cards. All I have to
do to make it work with Ubuntu guests, is setting the INTPIN register to any
value instead of just 0x00. Unfortunately, I'm unfamiliar with PCI legacy
interrupts and how they work. The INTLINE register is set to 0xFF (unconnected).
So, is it safe to set the INTPIN register or what has to be done for it to work
as expected?

Any help would be appreciated.


-- 
Kind regards,
Corvin