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Dasharo v0.9.0 launches as first open-source firmware for AMD AM5 platform, supporting Zen 4 APUs

🔄 Updated 1d ago
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Key points

  • Dasharo v0.9.0 is the first open-source UEFI firmware for AMD AM5.
  • It supports Zen 4 Phoenix APUs and MSI Pro B850-P WiFi motherboard.
  • The firmware is built on Coreboot and AMD's openSIL framework.
  • Open-source firmware improves security and offers compatibility with alternative firmwares.

First Open-Source Firmware for AM5

Firmware development company 3mdeb officially launched Dasharo v0.9.0, providing the first open-source UEFI firmware for AMD's AM5 platform. This release includes initial support for Zen 4 Phoenix APUs and the MSI Pro B850-P WiFi motherboard.

Technical Foundation

Dasharo v0.9.0 is built upon Coreboot and AMD's openSIL, which is AMD’s new open-source firmware framework. The patch notes for this version include 19 features enabling the open-source code on the B850 board, such as UEFI-compatible boot interface, UEFI Secure Boot, fTPM support, fast boot, EFI system partition scanning, quiet boot, AMD CPU temperature reporting, and integrated SBOM.

Development Background

The development of this open-source firmware for the MSI Pro B850-P has been ongoing for several months, building on previous work for the Gigabyte MZ33-AR1 server board. While AMD plans to transition to openSIL starting with Zen 6, 3mdeb has ported AMD's openSIL firmware to older Ryzen CPUs ahead of this official transition.

Benefits of Open-Source Firmware

Open-source firmware, particularly openSIL, offers improvements over existing closed-source solutions like AGESA. AMD states openSIL provides better platform security and vulnerability tracking due to its open nature, allowing external experts to review the code. Additionally, openSIL is compatible with alternative firmware projects such as Coreboot, oreboot, FortiBIOS, and Project µ, which can optimize code for improved boot-time performance.

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Reporting from

3mdeb released Dasharo v0.9.0, the first open-source UEFI firmware for AMD's AM5 platform, with initial support for Zen 4 Phoenix APUs and the MSI Pro B850-P WiFi motherboard. This development utilizes Coreboot and AMD's openSIL framework, offering enhanced security and compatibility compared to traditional closed-source firmware solutions like AGESA.