Non-ISA specifications do not add new instructions, create or change opcodes, or in any way modify the RISC-V ISA. They do help us to develop an ecosystem around the ISA Specifications.
Things you'll find here include:
If you don't find what you're looking for here, try one of our other GitHub organizations:
Documentation for the RISC-V Supervisor Binary Interface
The RISC-V Server Platform specification defines a standardized set of hardware and sofware capabilities, that portable system software, such as operating systems and hypervisors, can rely on being present in a RISC-V server platform.
This repository contains the specification source for the RISC-V IOPMP Specification. This document proposes a Physical Memory Protection Unit of Input/Output devices, IOPMP for short, to regulate the accesses issued from the bus masters.
This Fast-Track will extract the Hart-Trace Interface chapter from the E-Trace spec and turn it into a standalone spec
RISC-V Platform Management Interface Specification. OS-agnostic messaging interface for system management and control
Documenting the expected behaviour and supported command-line switches for GNU and LLVM based RISC-V toolchains
