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- .. SPDX-License-Identifier: GPL-2.0
- ===================================
- TEE (Trusted Execution Environment)
- ===================================
- This document describes the TEE subsystem in Linux.
- Overview
- ========
- A TEE is a trusted OS running in some secure environment, for example,
- TrustZone on ARM CPUs, or a separate secure co-processor etc. A TEE driver
- handles the details needed to communicate with the TEE.
- This subsystem deals with:
- - Registration of TEE drivers
- - Managing shared memory between Linux and the TEE
- - Providing a generic API to the TEE
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