ARM Trusted Firmware with LuminaSensum patches

@davidcunado-arm davidcunado-arm authored on 29 Sep 2016
GitHub committed on 29 Sep 2016
bl1 AArch32: Fix detection of virtualization support 7 years ago
bl2 AArch32: Add generic changes in BL2 7 years ago
bl2u Introduce SEPARATE_CODE_AND_RODATA build flag 7 years ago
bl31 PSCI: Do psci_setup() as part of std_svc_setup() 7 years ago
bl32 PSCI: Do psci_setup() as part of std_svc_setup() 7 years ago
common AArch32: Common changes needed for BL1/BL2 7 years ago
docs Docs: Add the PSCI library integration guide 7 years ago
drivers GICv3: Allow either G1S or G0 interrupts to be configured 7 years ago
fdts Remove support for legacy VE memory map in FVP 8 years ago
include AArch32: Add `memcpy4` function in assembly 7 years ago
lib AArch32: Add `memcpy4` function in assembly 7 years ago
make_helpers Replace fip_create with fiptool 7 years ago
plat Merge pull request #717 from sandrine-bailleux-arm/sb/foundation-fvp-v10 7 years ago
services PSCI: Do psci_setup() as part of std_svc_setup() 7 years ago
tools Merge pull request #710 from dp-arm/dp/fiptool-usage 7 years ago
.checkpatch.conf Move checkpatch options in a configuration file 7 years ago
.gitignore Replace fip_create with fiptool 7 years ago
Makefile AArch32: Add ARM platform changes in BL2 7 years ago Add Xilinx to acknowledgements file 8 years ago Drop requirement for CLA in 7 years ago
dco.txt Drop requirement for CLA in 7 years ago Update year in copyright text to 2014 10 years ago Update `` for v1.2 release 8 years ago

ARM Trusted Firmware - version 1.2

ARM Trusted Firmware provides a reference implementation of secure world software for ARMv8-A, including a Secure Monitor executing at Exception Level 3 (EL3). It implements various ARM interface standards, such as the Power State Coordination Interface (PSCI), Trusted Board Boot Requirements (TBBR, ARM DEN0006C-1) and SMC Calling Convention. As far as possible the code is designed for reuse or porting to other ARMv8-A model and hardware platforms.

ARM will continue development in collaboration with interested parties to provide a full reference implementation of PSCI, TBBR and Secure Monitor code to the benefit of all developers working with ARMv8-A TrustZone technology.


The software is provided under a BSD 3-Clause license. Certain source files are derived from FreeBSD code: the original license is included in these source files.

This Release

This release provides a suitable starting point for productization of secure world boot and runtime firmware. Future versions will contain new features, optimizations and quality improvements.

Users are encouraged to do their own security validation, including penetration testing, on any secure world code derived from ARM Trusted Firmware.


  • Initialization of the secure world (for example, exception vectors, control registers, interrupt controller and interrupts for the platform), before transitioning into the normal world at the Exception Level and Register Width specified by the platform.

  • Library support for CPU specific reset and power down sequences. This includes support for errata workarounds.

  • Drivers for both the version 2.0 and version 3.0 ARM Generic Interrupt Controller specifications (GICv2 and GICv3). The latter also enables GICv3 hardware systems that do not contain legacy GICv2 support.

  • Drivers to enable standard initialization of ARM System IP, for example Cache Coherent Interconnect (CCI), Cache Coherent Network (CCN), Network Interconnect (NIC) and TrustZone Controller (TZC).

  • SMC (Secure Monitor Call) handling, conforming to the SMC Calling Convention using an EL3 runtime services framework.

  • SMC handling relating to PSCI for the Secondary CPU Boot, CPU Hotplug, CPU Idle and System Shutdown/Reset/Suspend use-cases.

  • Secure Monitor library code such as world switching, EL1 context management and interrupt routing. This must be integrated with a Secure-EL1 Payload Dispatcher (SPD) component to customize the interaction with a Secure-EL1 Payload (SP), for example a Secure OS.

  • A Test Secure-EL1 Payload and Dispatcher to demonstrate Secure Monitor functionality and Secure-EL1 interaction with PSCI.

  • SPDs for the [OP-TEE Secure OS] and [NVidia Trusted Little Kernel] [NVidia TLK].

  • A Trusted Board Boot implementation, conforming to all mandatory TBBR requirements. This includes image authentication using certificates, a Firmware Update (or recovery mode) boot flow, and packaging of the various firmware images into a Firmware Image Package (FIP) to be loaded from non-volatile storage.

  • Support for alternative boot flows. Some platforms have their own boot firmware and only require the ARM Trusted Firmware Secure Monitor functionality. Other platforms require minimal initialization before booting into an arbitrary EL3 payload.

For a full description of functionality and implementation details, please see the [Firmware Design] and supporting documentation. The [Change Log] provides details of changes made since the last release.


This release of the Trusted Firmware has been tested on variants r0 and r1 of the Juno ARM Development Platform with [Linaro Release 15.10] [Linaro Release Notes].

The Trusted Firmware has also been tested on the 64-bit Linux versions of the following ARM FVPs:

  • Foundation_Platform (Version 9.4, Build 9.4.59)
  • FVP_Base_AEMv8A-AEMv8A (Version 7.0, Build 0.8.7004)
  • FVP_Base_Cortex-A57x4-A53x4 (Version 7.0, Build 0.8.7004)
  • FVP_Base_Cortex-A57x1-A53x1 (Version 7.0, Build 0.8.7004)
  • FVP_Base_Cortex-A57x2-A53x4 (Version 7.0, Build 0.8.7004)

The Foundation FVP can be downloaded free of charge. The Base FVPs can be licensed from ARM: see

This release also contains the following platform support:

  • NVidia T210 and T132 SoCs
  • MediaTek MT8173 SoC

Still to Come

  • Complete implementation of the PSCI v1.0 specification.

  • Support for new CPUs and System IP.

  • More platform support.

  • Optimization and quality improvements.

For a full list of detailed issues in the current code, please see the [Change Log] and the [GitHub issue tracker].

Getting Started

Get the Trusted Firmware source code from GitHub.

See the [User Guide] for instructions on how to install, build and use the Trusted Firmware with the ARM FVPs.

See the [Firmware Design] for information on how the ARM Trusted Firmware works.

See the [Porting Guide] as well for information about how to use this software on another ARMv8-A platform.

See the [Contributing Guidelines] for information on how to contribute to this project and the Acknowledgments file for a list of contributors to the project.

Feedback and support

ARM welcomes any feedback on the Trusted Firmware. Please send feedback using the [GitHub issue tracker].

ARM licensees may contact ARM directly via their partner managers.

Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.