RISC-V Platform Specification

The files in this project are used to create the RISC-V Platform Specification. This specification defines the set of firmware and hardware required of a RISC-V platform so that it may install and run various operating systems.

The content of the specification is created and controlled by the RISC-V Platform Horizontal Subcommittee (RISC-V Platform HSC). Information about the subcommittee can be found at https://lists.riscv.org/g/tech-unixplatformspec. Please note that membership in RISC-V International is required to post to the mailing list, but it is publicly readable. Membership in RISC-V International is free for individual community members.

All discussion of this specification occurs on the task group mailing list. Please use github issues for bug reports.

Licensing

The files in this repository are licensed under the Creative Commons Attribution 4.0 International License (CC-BY 4.0). The full license text is available at https://creativecommons.org/licenses/by/4.0/.

Repository Content

• Makefile => 'make' in this directory will produce the HTML, markdown, and PDF versions of the current spec
• README.md => this file
• riscv-platform-spec.adoc => the spec in asciidoc format; there are several subsidiary asciidoc files that get included by this file.
• docs-resources => Git Submodule with the RISC-V documentation theme, fonts, etc. for building the document

Repository Branches

• All development occurs on main; no content on main is to be considered TSC-approved content.
• TSC-approved content will be clearly marked as such.

Dependencies

The PDF built in this project uses AsciiDoctor (Ruby). For more information on AsciiDoctor, specification guidelines, or building locally, see the RISC-V Documentation Developer Guide.

Cloning the project

This project uses GitHub Submodules to include the RISC-V docs-resources project to achieve a common look and feel.

When cloning this repository for the first time, you must either use git clone --recurse-submodules or execute git submodule init and git submodule update after the clone to populate the docs-resources directory. Failure to clone the submodule, will result in the PDF build fail with an error message like the following:

$ make
asciidoctor-pdf \
-a toc \
-a compress \
-a pdf-style=docs-resources/themes/riscv-pdf.yml \
-a pdf-fontsdir=docs-resources/fonts \
--failure-level=ERROR \
-o profiles.pdf profiles.adoc
asciidoctor: ERROR: could not locate or load the built-in pdf theme `docs-resources/themes/riscv-pdf.yml'; reverting to default theme
No such file or directory - notoserif-regular-subset.ttf not found in docs-resources/fonts
  Use --trace for backtrace
make: *** [Makefile:7: profiles.pdf] Error 1