Michał Żygowski with the 3mdeb consulting firm that focuses on open-source firmware solutions presented at FOSDEM 2024 with this annual AMD open-source firmware update. 3mdeb is behind Dasharo and the Coreboot-based port for modern select Intel-based MSI motherboards , among other open-source firmware accomplishments. They are also the ones behind drinking beers while discussing open-source firmware - an award-winning combination for an event!
Most significant was last year AMD announcing OpenSIL for open-source CPU silicon initialization. AMD openSIL very much remains a work-in-progress but is continuing to be brought up with the hopes of it replacing the proprietary AGESA by ~2026 with Zen 6 processors. AMD openSIL will support not only their server processors too but also the client Ryzen processors in being a complete replacement to AGESA. AMD openSIL is very exciting for the future in allowing more open-source system firmware possibilities and is very much exciting for the future.
Over the past year Coreboot has also begun pulling in openSIL , initial EPYC 9004 "Genoa" support , amdfwtool support for Genoa , and improvements to existing AMD motherboard/chipset targets. Another win in 2023 was AMD making their SEV firmware open-source .
More details as to the current state of AMD open-source firmware support via the FOSDEM 2024 presentation .