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opensecura / 3p / lowrisc / opentitan / 43970f6fe476a29590537412b9f537ddd4211cdd
commit43970f6fe476a29590537412b9f537ddd4211cdd[log] [tgz]
authorMartin Lueker-Boden <martin.lueker-boden@wdc.com>Mon Mar 28 09:58:07 2022 -0700
committerMartin Lueker-Boden <47870387+martin-lueker@users.noreply.github.com>Wed Apr 06 14:19:38 2022 -0700
treecb77b028b1dfbb5558613eeb3fa70fbce0a8eb84
parent081f0187ce544be2d3c865fac417e8cb0ee281e7 [diff]
[entropy_src/dv] Minor updates to support more use cases

The RNG Vseq and scoreboard have been updated to better support SW entropy reads

- Properly handles OTP flags for FW reads, and FW override modes
- An interrupt handler has been added to fetch data from the ENTOPY_DATA CSR
- Minor bugfixes have been added to recognize bypass-mode data when
  ENTROPY_CONTROL.ES_TYPE is set to MuBi4True.
- When in bypass mode, the interrupt handler also reinitializes
  The DUT after reading a word, to prompt the production of more
  seeds.  (The DUT itself halts after making one seed.)

Signed-off-by: Martin Lueker-Boden <martin.lueker-boden@wdc.com>
6 files changed
tree: cb77b028b1dfbb5558613eeb3fa70fbce0a8eb84
  1. .github/
  2. ci/
  3. doc/
  4. hw/
  5. rules/
  6. site/
  7. sw/
  8. test/
  9. third_party/
  10. util/
  11. .bazelignore
  12. .bazelrc
  13. .bazelversion
  14. .clang-format
  15. .dockerignore
  16. .flake8
  17. .gitignore
  18. .style.yapf
  19. .svlint.toml
  20. .svls.toml
  21. _index.md
  22. apt-requirements.txt
  23. azure-pipelines.yml
  24. bazelisk.sh
  25. BUILD.bazel
  26. check_tool_requirements.core
  27. CLA
  28. COMMITTERS
  29. CONTRIBUTING.md
  30. LICENSE
  31. meson-config.txt
  32. meson.build
  33. meson_init.sh
  34. meson_options.txt
  35. python-requirements.txt
  36. README.md
  37. tool_requirements.py
  38. toolchain.txt
  39. topgen-reg-only.core
  40. topgen.core
  41. WORKSPACE
  42. yum-requirements.txt
README.md

OpenTitan

OpenTitan logo

About the project

OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.

About this repository

This repository contains hardware, software and utilities written as part of the OpenTitan project. It is structured as monolithic repository, or “monorepo”, where all components live in one repository. It exists to enable collaboration across partners participating in the OpenTitan project.

Documentation

The project contains comprehensive documentation of all IPs and tools. You can access it online at docs.opentitan.org.

How to contribute

Have a look at [CONTRIBUTING]({{< relref “CONTRIBUTING.md” >}}) and our documentation on project organization and processes for guidelines on how to contribute code to this repository.

Licensing

Unless otherwise noted, everything in this repository is covered by the Apache License, Version 2.0 (see LICENSE for full text).