[dif] Add missing dif to access fault CSRs
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Component:Software
Earlgrey-PROD Candidate
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- SystemVerilog
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Description
The hmac, keymgr, and otbn difs are missing functions to read the fatal error CSRs. We need these for a test that will trigger escalation resets for every IP, so we can check the regfile integrity fault bit.
Assigning to Arun to delegate to the SW team.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the hmac, keymgr, and otbn DIF entry points and the fatal error CSR definitions. Review how existing DIFs read these CSRs, then verify the escalation-reset test can use the new functions to check the regfile integrity fault bit.
Written by the indexing model from the issue text.
Assessment
- Domain
- embedded-iot, security
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100