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  • Test plan for the scalar-crypto specific instructions is available.
  • No actual tests suitable for use currently available. An old experimental set need removing from the riscv-crypto repository, as these no longer work with the latest toolchain or architectural test framework.
  • What's next:
    • Imperas have a complete set of tests, written to the existing test plan, for the scalar crypto instructions and the bitmanip instructions we borrow.
      • There is an open pull request in the riscv-arch-test repository, with many thanks to Imperas.
      • They form a base we can use to develop prototype implementations / Spike / SAIL / QEMU very easily and quickly.
    • IIT Madras are also looking at writing the scalar crypto tests for integration into the official architectural tests repo as well.
      • Agreed SoW for IITM
      • They will re-implement the tests as part of the blessed coverage and test generation tooling.
      • We then switch over to using the IIT tests when they are finished, since they will be easier to maintain/extend going forward than the Imperas tests.
    • YAML config changes for K have been merged in. See here.

Compilers / Toolchains

Imperas maintain pre-built toolchains for various in-progress RISC-V extensions here. See the "rvk-*" branches for scalar crypto.

GCC and Assembler

  • Experimental / development toolchain available in the riscv-crypto repository.
    • This cannot be up-streamed, but can be used for development work for now.
  • Intrinsics proposal from Markku
  • PLCT Lab are starting this work in an up-streamable way.
    • Expecting an update next week. I.e. by March 20'th.

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