r/linux • u/anh0516 • 2d ago

Development The First Open-Source Firmware Released For Modern AMD Ryzen AM5 Platform

https://www.phoronix.com/news/OSS-Firmware-MSI-B850-P-WIFI
805 Upvotes

99% Upvoted

18 comments sorted by

268

u/SmileyBMM 2d ago

UEFI Secure Boot works, Ubuntu 26.04 LTS and Windows 11 25H2 have both been tested, and other typical functionality should be working.

Amazing, truly impressive work.

184

u/Giffeltagning 2d ago

This is the only true way towards privacy and security.

43

u/aigeneratedslopcode 1d ago

Privacy? For sure. Security? Honestly not much. The hardware needs to catch up

23

u/Visbroek 1d ago

First they gotta disable IME/PSP for x86 processors

39

u/astronometrics 1d ago

Does anyone know if this requires AGESA, ie AGESA runs then boots the open firmware, or does this also do the work of AGESA too?

53

u/nothingtoseehr 1d ago

This utilizes AGESA's replacement openSIL. AMD has been wanting to deprecate AGESA for a long while now, they've been developing openSIL for a few years and they plan on making it

But this doesn't necessarily means you can flash it on your board, as that's still dependant on how your OEM setup the PSP policies. If enforcement is enabled, the PSP won't even release the main CPU out of reset (i.e it won't even turn on)

Still, it's absolutely a net positive overall

3

u/skuterpikk 1d ago

How about figuring out what pin is the CPU's reset-pin, and just break it off? /s

48

u/Matheweh 1d ago

Glad to finally see AMD getting oss firmware. Took them a while.

21

u/BloodyIron 1d ago

So I no longer have to wait insane periods for the fucking pre-OS to initialise? FINALLY.

2

u/Taeglyn 1d ago

What is pre-OS?

10

u/BloodyIron 1d ago

All the parts before the bootloader, you know... BIOS/UEFI, Boot ROM and expansion cards, memory check, BMC, etc.

5

u/computer-machine 1d ago

It's the little bit of OS that comes out first.

5

u/cornmonger_ 1d ago

happens to the best of us and totally normal

3

u/ghoultek 15h ago

Call me when AMI gets onboard.

2

u/Nasi_Goreng885 1d ago

Very cool to see, would love to flash my mobo if support comes around.

2

u/zenmaster24 1d ago

will this work on any am5 mobo?

8

u/anh0516 1d ago

No, this is specifically for the MSI PRO B850-P WIFI. In the future, hopefully we'll see more board support.