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Status at a glance:

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  • Latest Draft Scalar Crypto Specification (v0.9.0)
  • Stable
  • What's next:
    • Needs translation into ASCIIDOC.
      • This work is documented in issue #89
      • Got a skeleton ASCIIDOC spec compiling and using the right styles.
      • Converting it section by section. Not converting things which might change in opcode review yet.
    • We will need to incorporate results of OpCode consistency review from Ken, once available
      • The opcode and consistency review dashboard is here.
      • Our ETA is currently May 15'th 2021.
  • Roadmap:
    • Next version will include any feedback from opcode consistency review, plus any small cleanups and editorial work.
      • aes32* and sm4* encodings will change to remove the `rt` field.
      • Change aes64ks1i "rcon" immediate to "rnum".
    • v1.0.0 will be the public review version.

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  • Test plan for the scalar-crypto specific instructions is available.
  • Imperas have a complete set of tests, written to the existing test plan, for the scalar crypto instructions and the bitmanip instructions we borrow.
    • These have been merged into the main test suite as of PR#177, with many thanks to Imperas for the contribution.
      • Spike, OVPSim and Sail all agree on the test signatures.
    • They form a base we can use to develop prototype implementations / Spike / SAIL / QEMU very easily and quickly.
  • Upstream Spike support for enabling it to work with the K test suite is being added in PR#687.
  • 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 are re-implementing the tests as part of the blessed coverage and test generation tooling.
      • Making good progress with the simple test patterns for scalar-crypto specific instructions A/O April 7'th '21
    • 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.
  • Status from IIT Madras as on 05-May:
    • Resolved issues in running the rv64ik toolchain after interacting with PLCT and compile the relevant tests generated from CTG and run them on spike
    • Currently resolving issues in the running the rv64ibk toolchain. Once this is done, will generate the coverage report of the test cases built till now and share with team.
  • Status from IIT Madras as on 26-Apr:
    • Completed the coverage points specification for all 32-bit and 64-bit instructions
    • Generated test cases from the coverage points
    • Currently working on trying to install the scalar crypto enabled toolchain.

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