riscv_profile_exts

Extension: Multiple extensions from RISC-V Profiles

• Status: Approved and PATCH 1/2 is merged for Binutils 2.40 (waiting for PATCH 2/2 for further clarification)
• Branch: riscv-profile-exts
• Tracking PR: #82 (view Pull Request and Diff)
• Mailing List:
  • REVIEW ONLY v1 (2022-11-03)
  • PATCH v2 (2023-01-30)
  • PATCH v3 (2023-01-30)
  • PATCH v4 (2023-07-26)

Feature Description

It implements:

1. 20 platform property/capability extensions
   (each denoting certain property / capability of the platform)
2. (Already merged) Ssstateen extension (supervisor/hypervisor view of the Smstateen extension)

References

• The latest draft of RISC-V Profiles

In specific,

• "REVIEW ONLY v1" is based on the version 0.9-draft with Svptead proposal
• "PATCH v2" and "PATCH v3" are based on the version 0.9.2
• "PATCH v4" is based on the ratified specification