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opensecura / 3p / lowrisc / opentitan / 0677219017e53b80296f3bbb926942d629905eb4
commit0677219017e53b80296f3bbb926942d629905eb4[log] [tgz]
authorSrikrishna Iyer <sriyer@google.com>Thu Mar 24 00:04:41 2022 -0700
committerSrikrishna Iyer <46467186+sriyerg@users.noreply.github.com>Thu Mar 24 15:48:18 2022 -0700
tree12904890e82d5bbc73ecf2c6a6d8d4a67b467a7c
parent3db7ca39807617662e1659be460a837dc5f041f2 [diff]
[rv_dm dv] Test drive compile-time seed

This commit test-drives the compile-time randomization method by
introducing a pre-processor macro `BUILD_SEED` which is set to
the DVSim generated random seed value. This macro is added to
`common_sim_cfg.hjson`, which will apply to all simulators.

For RV_DM, the pre-processor macro `RV_DM_JTAG_IDCODE` is removed
and in the env package, the `RV_DM_JTAG_IDCODE` parameter is set
to the `BUILD_SEED` preprocessor macro instead. On successive
simulation runs, the IDCODE value in the design has shown to be
set to random values, demonstrating that this method is working.
The IDCODE value returns 1 when `--build-seed 1` is passed on
the command line.

Signed-off-by: Srikrishna Iyer <sriyer@google.com>
3 files changed
tree: 12904890e82d5bbc73ecf2c6a6d8d4a67b467a7c
  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. BUILD.bazel
  25. check_tool_requirements.core
  26. CLA
  27. COMMITTERS
  28. CONTRIBUTING.md
  29. LICENSE
  30. meson-config.txt
  31. meson.build
  32. meson_init.sh
  33. meson_options.txt
  34. python-requirements.txt
  35. README.md
  36. tool_requirements.py
  37. toolchain.txt
  38. topgen-reg-only.core
  39. topgen.core
  40. WORKSPACE
  41. 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 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).