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Implemented

ARMv8-M Security Ext (TrustZone-M)

Priority 1 - CPU Architectures & Execution Engines / 1.2 ARM Cortex-M / ARMv-M

$2,250 / $2,250fully funded
Done$2,250 / $2,250 - 100%
As a firmware developer, I want vemu's ARMv8-M Security Ext (TrustZone-M) to stay accurate, tested, and documented, so that I can keep depending on secure firmware (TF-M).

Why it matters

Secure firmware (TF-M)

Summary

SAU/IDAU, SG/BXNS, banked SP/PRIMASK

Scope of work

Already implemented. Harden, broaden coverage, add tests and documentation for ARMv8-M Security Ext (TrustZone-M). What it is: SAU/IDAU, SG/BXNS, banked SP/PRIMASK. Why it matters: Secure firmware (TF-M).

Current state

Status: Fully implemented. Notes / evidence: v8m/ + trustzone.rs.

Blocked by 1

Fund these first - this work can't be completed until they ship.

  • Done
Unblocks 5

Funding this also clears the way for the work below.

  • Done
  • Fund$2,750
  • Fund$19,750
  • Fund$3,500
  • Done

Activity log

  1. Feature defined and added to the roadmap

  2. Funding goal set to $2,250

  3. Implementation status: Implemented

  4. Delivered - counted as fully funded