Tests of ePMP

[HamzaKh01]

Description

Written tests of ePMP. Tests adhere to the latest TestFormatSpec. Tests have the same format as of pmp tests that are already written. In the branch test here test lies riscv-arch-test/riscv-test-suite/rv32i_m/privilege/src/ePMP32. Test plan which covers the cases is attached to each test file, In addition, the test file also contains the test motive and expected output. For symmetry test plan is divided into M mode test and S/U mode tests as Mmode has one behaviour and S/U mode has one behaviour for ePMP but despite having same behaviour for a region S/U mode tests are seprated too due to the dependency of a region to be writeable and executable for mMode and we were not able to use macro Go_to_Mmode to switch to Mmode and the goto Umode to execute the same behaviour for a region that is why tests are separated. Tests are verified on the first-hand thoroughly by running on the spike. As SAIL lacks the support of ePMP, working on adding support of ePMP in SAIL it will be made live by the 31st of December Insha'Allah.

Related Issues

NA

Ratified/Unratified Extensions

• Ratified
• Unratified

List Extensions

NA

Reference Model Used

• SAIL
• Spike
• Other - < SPECIFY HERE >

Mandatory Checklist:

• All tests are compliant with the test-format spec present in this repo ?
• Ran the new tests on RISCOF with SAIL/Spike as reference model successfully ?
• Ran the new tests on RISCOF in coverage mode
• Link to Google-Drive folder containing the new coverage reports (See this for more info): < SPECIFY HERE >
• Link to PR in RISCV-ISAC from which the reports were generated : < SPECIFY HERE >
• Changelog entry created with a minor patch

Optional Checklist:

• RISCV-V CTG PR link if tests were generated using it : < SPECIFY HERE >
• Were the tests hand-written/modified ?
• Have you run these on any hard DUT model ? Please specify name and provide link if possible in the description
• If you have modified arch_test.h Please provide a detailed description of the changes in the Description section above.

[HamzaKh01]

Hi Hamza here,

Sail support for Smepmp is live here.

[jamesbeyond]

Pending for the PMP test merged first
cover point (cgf files) need to be generated

[UmerShahidengr]

This PR is quite old and have run on the older version of Sail. It will be done again after testing against the updated Sail model and integrating the changes in the latest trap handler.