Failed to Load the TA in iTrustee

Symptom

When the CA is being executed, the following log is displayed for dmesg. The TA is not correctly deployed and fails to be loaded in iTrustee.

Key Process and Cause Analysis

When a CA establishes a communication link with a TA, the CA sends the disk storage path of the TA to the TEE OS. However, the TA is not correctly deployed and the TEE OS cannot find the TA. The error information can be viewed in the journalctl log and is printed by the teecd daemon.

Conclusion and Solution

The TA is not correctly deployed and fails to be loaded in iTrustee. Check and redeploy the TA by following instructions in Confidential Computing TrustZone Kit Feature Guide, and run the CA again.