Re: bhyve: GPU passthrough for Nvidia cards

On 6/26/25 23:47, Nuno Teixeira wrote:
> Hello Stephan,
>
> A year a go I did try passtrhu a dedicated nvidia GTX 1650 while using 
> integrated intel graphics (laptop Lenovo Legion 5 15IMH05). Windows 
> detected card but nvidia drivers install failed at some point.
> On this laptop I did setup bios to use integrated graphics so I can 
> passthru dedicated nvidia.
>
> Think I will give a new try since I follow main.
>
> Are you using laptops for this usecase?
>
> Thanks!
>
> Stephan Althaus <Stephan.Althaus@duedinghausen.eu> escreveu (quinta, 
> 26/06/2025 à(s) 15:50):
>
>     On 6/26/25 15:07, Corvin Köhne wrote:
>     > 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.
>     >
>     >
>     Hi!
>
>     You surely mean 'newer' NVidia cards, as my GT1030 works with FreeBSD
>     14.2 Host and ubuntu guest, NVIdia driver 570, (and Win guest btw)
>     out-of-the-box, no kernel/driver modding...
>
>     Regards,
>
>     Stephan
>
>
>
>
>
> -- 
> Nuno Teixeira
> FreeBSD UNIX: <eduardo@FreeBSD.org>   Web: https://FreeBSD.org 
> <https://FreeBSD.org>

Hello!

Oh, laptops... With this "Optimus"-called feature i am not shure if it 
will work...

But i think it's worth trying.

Maybe you will need the GPU ROM. 
(https://forums.FreeBSD.org/threads/current-state-of-bhyve-nvidia-passthrough.88244/post-706455)

Good luck!

Stephan