OP-TEE is a secure OS that is easily portable, provides a small footprint, and leverages Arm® TrustZone® technology to provide isolation from the normal world. OP-TEE is GlobalPlatform TEE System Architecture specification compliant.
Linaro has extensive experience with the Open Portable Trusted Execution Environment (OP-TEE). The core maintainers for the OP-TEE project, as well as the maintainers for the TEE framework in the Linux kernel and U-Boot are employed by Linaro.
Trusted Services is a Trusted Firmware project implementing a secure partition manager, and a number of trusted services that run in secure partitions within OP-TEE.
Linaro Developer Services has experience porting and enhancing OP-TEE on various SoCs, as well as using the Arm Trusted Services project to implement a PSA root of trust (RoT) to obtain PSA level 1 certification for an NXP based platform.