Re: GPU Passthrough on FreeBSD 14.3 (AMD Radeon RX 6900 XT and Windows 10 Pro)

From: Stephan Althaus <Stephan.Althaus_at_Duedinghausen.eu>
Date: Mon, 25 Aug 2025 14:47:25 UTC
On 8/24/25 23:58, Jonathan Vasquez wrote:
> Hey all,
>
> I've been experimenting with trying to get my server's dedicated AMD 
> Radeon RX 6900 XT working on a bhyve Windows 10 Pro client for gaming 
> purposes. I've been reading a bunch of blog posts, sites, files, and 
> videos (thanks Corvin) to try and piece things together. I've been 
> able to get the VM to recognize the card, but still stuck on the Code 
> 43 issue (with or without using the vBIOS I've extracted from my 
> dedicated card and also ensuring any options needed to be on in the 
> UEFI settings are enabled). This machine is running on an AMD Ryzen 9 
> 7950X 16-Core Processor, so it's a full AMD setup, no Intel stuff. It 
> technically should be relatively "easy" to get AMD working from what 
> I've read (excluding the known AMD Hardware reset issue). I've 
> documented everything I've done so far, and will be documenting more 
> and simplifying the instructions as I make progress. Please let me 
> know if you see any thing weird or anything I could try based on what 
> I've rewritten. I'll try to give it a go and provide feedback. Thank you!
>
> https://xyinn.org/blog/freebsd/freebsd_bhyve_gpu_passthrough_amd
>
> Jonathan Vasquez
> PGP: 34DA 858C 1447 509E C77A D49F FB85 90B7 C4CA 5279
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>
Hi!

i have a AMD RX6400 GPU setup running on 14.2 with win10 guest, host is 
a intel system.

i think you have to passthrough the 3/0/1 device as well!

The bios.rom is extracted from this card in place ?


Regards,
Stephan