Arm Confidential Compute Architecture (Arm CCA) Architecture
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1. Legacy Cloud (Exposed)
2. Realm Granule Delegation
3. Hypervisor Read Intercepted
4. Code Tampering Blocked
5. Cryptographic Attestation
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Non-Secure World
Host / Cloud Hypervisor
State: Untrusted Hypervisor
Action: Snooping Realm RAM
Realm Management Monitor
Execution Level: R-EL2 (RMM)
Root EL3 Monitor Active
Granule Protection Check
GPT State: GPT_REALM
Requester: Non-Secure World
Hardware GPC Filter Active
GRANULE PROTECTION FAULT
Silicon MMU Blocked Access
Realm World (Confidential VM)
Execution Level: R-EL1 (Realm)
Isolated Tenant Workload
Private AI Weights: 0xSECRET_TENSORS
SHA-256 Attestation Measurement
Remote Attestation Engine
Hash: a3f5b721e89b4317...
Status: Authenticated Realm Identity
VULNERABLE
Step: 0 / 4
Select an Arm CCA scenario above to observe hardware Realm confidential computing.
Security Insight: Arm CCA establishes a 4-World model with hardware Granule Protection Checks (GPC).