On Nov. 6, 2026, Phoronix reported that a linux-firmware commit describes AMD Platform Management Framework (PMF) Trusted Application (TA) firmware v4 for platform 1AH_M80H as running on a RISC-V-based Trusted Execution Environment (TEE). Phoronix’s report also describes a larger shared-memory layout and expanded policy conditions, including up to 20 custom BIOS inputs.
The RISC-V label belongs to the TEE running the PMF Trusted Application; the platform’s generation is a separate question.
What the firmware description covers
Phoronix says the PMF TA manages power, thermal, and system behavior. In this description, RISC-V identifies the TEE that runs the application. The firmware description also calls for a larger shared-memory layout and more policy conditions, with up to 20 custom BIOS inputs.
This is a different software change from the Linux 7.4 power-management updates involving AMD Zen 6 in NeoTeo’s earlier coverage, which focused on kernel support.
How Phoronix links the platform to Zen 6
Phoronix associates Family 1Ah M80h with Ryzen Zen 6 client processors, while saying the firmware could also concern recent Zen 5 processors. The report describes the RISC-V-based TEE specifically in connection with PMF TA firmware v4 for 1AH_M80H.
For historical context, Phoronix describes AMD’s Secure Processor, also called the Platform Security Processor (PSP), as traditionally based on an Arm Cortex-A5 core with Arm TrustZone. The reported RISC-V detail concerns the PMF TA’s TEE.
Linux 7.4 adds reported power-management changes for AMD and Intel
