arm-trusted-firmware-rk3399 2.4 Implementation of "secure world software"

ARM Trusted Firmware provides a reference implementation of secure world software for ARMv7A and ARMv8-A, including a Secure Monitor executing at Exception Level 3 (EL3). It implements various ARM interface standards, such as:

  1. The Power State Coordination Interface (PSCI)

  2. Trusted Board Boot Requirements (TBBR, ARM DEN0006C-1)

  3. SMC Calling Convention

  4. System Control and Management Interface

  5. Software Delegated Exception Interface (SDEI)