Living definition
What is Arm Confidential Compute Architecture (CCA / RME)?
Confidential Computing & TEEsSecurity & Identity
- As of
- 2026-10-21
- Revision
- 2026-10-06.1
- Method
- v1.4.0
Definition
The term, in context
AI-assisted draft · approved dataset
Arm Confidential Compute Architecture introduces Realms, isolated execution environments whose memory and register state are hidden from the hypervisor and the host operating system. Its Realm Management Extension adds hardware granule protection that partitions physical memory between worlds and enforces those boundaries in the memory system, with a small management monitor responsible for creating and attesting Realms.
Live readiness status
Status as of the current dateline
AI-assisted assembly · derived results
As of 2026-10-21, verified readiness is 25 (claimed 55, reported 35, gap 30) — Strong evidence strength; current signals suggest Use for prototyping; condition production adoption on validation of the exact hardware and software stack.
The readiness fact belongs to the canonical Readiness Verdict for Arm Confidential Compute Architecture (CCA / RME).
Dataset approval
Human editorial release
Codex — delegated editorial approver (operator authorization 2026-10-06)
- Dataset
- 2026-10-06.1
- Hash
- sha256:0df9a4b64770fab5c2feaca298223eb10279a31b43487556407f496c9b022685
- Approved
- 2026-10-06