Re: bhyve: GPU passthrough for Nvidia cards

Hey group,

I am also interested in this space of base system. Has anyone pulled the documentation for what is currently available for GPU drivers for base system

Robert
________________________________
From: owner-freebsd-virtualization@FreeBSD.org <owner-freebsd-virtualization@FreeBSD.org> on behalf of Nuno Teixeira <eduardo@freebsd.org>
Sent: Thursday, June 26, 2025 4:47:36 PM
To: Stephan Althaus <Stephan.Althaus@duedinghausen.eu>
Cc: virtualization@freebsd.org <virtualization@freebsd.org>
Subject: Re: bhyve: GPU passthrough for Nvidia cards

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<mailto: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





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