A pre-built version of the spec is included here.

sudo apt-get install git make python python-sympy graphviz texlive-full
make

There are various ways to contribute to this spec. You can use a combination of them to get your idea across. Please note that pull requests will only be reviewed/accepted from RISC-V Foundation members.

1. Make a PR. This is the best way to deal with minor typos and edits.
2. File an issue with something that you want to know or see
3. Discuss higher-level questions or ideas on the riscv-debug-group mailing list: https://groups.google.com/a/groups.riscv.org/forum/#!forum/debug

Additional information can be found at https://github.com/riscv/debug-taskgroup