Status at a glance:
...
Architecture & Opcode consistency review
...
- The results of the review can be seen here. Scalar Crypto Arch Review Results.pdf
- After discussion within the task group, the following changes will be made to the spec, with the changes expected to land in 0.9.4 before the end of August.
- Stop overlapping the aes32 and aes64 opcodes. See riscv/riscv-opcodes#77
- Clarify the effect of misa.k
- Some updates to the entropy source and zkt detailed here.
- Miscellaneous editorial issues.
- Some downstream tasks for our group development partners once 0.9.4 lands:
| Who | Status | Task |
|---|---|---|
| PLCT | Not started | Update extension names: Zkb → Zbkb etc. |
| PLCT | Not started | Update aes32/64* encodings if applicable. |
| PLCT | Not started | Update extension names: Zkb → Zbkb etc. |
| PLCT | Not started | Update aes32/64* encodings if applicable. |
| IIT | Not started | Update extension names: Zkb → Zbkb etc. |
| IIT | Not started | Update instruction inclusion in different extensions |
| IIT | Not started | Break up K suite into Zk* extensions |
| IIT | Not started | Update instruction inclusion in different extensions |
Architecture Tests
- 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.
- These have been merged into the main test suite as of PR#177, with many thanks to Imperas for the contribution.
- 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 17-Jun:
- All test cases and coverage reports has been generated and presented.
- If there are any changes in future on these that is required in future, IIT Madras will enhance the scripts as per requirements.
- Status from IIT Madras as on 20-May:
- Real world test cases as per the test plan has been generated.
- Currently waiting for the fixed toolchain with K extension from PLCT to test the generated test cases. All the test cases are working fine when we run against the patched toolchain
- A PR has been raised with a pull request for this suite to be reviewed and merged in the riscv-arch tests github repo.
- Status from IIT Madras as on 12-May:
- Coverage report for all developed cases in CTG/ISAC has been generated and it is reported as 100%
- Currently real world test cases are being developed as per test plan and will be completed and send for review by beginning of next week
- 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.
...