andrius
/
arm-trusted-firmware
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Upstream fork of ATF with a couple of rk3399 patches to remove HDCP blob and increase BAUD_RATE.
328 Commits 2 Branches 52 Tags 32 MiB
C 86.4%
Assembly 8.1%
Makefile 3.7%
C++ 1.5%
Python 0.2%
Go to file
Sandrine Bailleux 8f55dfb4ba Remove concept of top/bottom image loading 
This concept is no longer required since we now support loading of
images at fixed addresses only.

The image loader now automatically detects the position of the image
inside the current memory layout and updates the layout such that
memory fragmentation is minimised.

The 'attr' field of the meminfo data structure, which used to hold
the bottom/top loading information, has been removed. Also the 'next'
field has been removed as it wasn't used anywhere.

The 'init_bl2_mem_layout()' function has been moved out of common
code and put in BL1-specific code. It has also been renamed into
'bl1_init_bl2_mem_layout'.

Fixes ARM-software/tf-issues#109

Change-Id: I3f54642ce7b763d5ee3b047ad0ab59eabbcf916d
 		2014-07-01 10:59:43 +01:00
bl1 Remove concept of top/bottom image loading 2014-07-01 10:59:43 +01:00
bl2 Remove concept of top/bottom image loading 2014-07-01 10:59:43 +01:00
bl31 Remove all checkpatch errors from codebase 2014-06-24 12:50:00 +01:00
bl32/tsp Remove all checkpatch errors from codebase 2014-06-24 12:50:00 +01:00
common Remove concept of top/bottom image loading 2014-07-01 10:59:43 +01:00
docs Remove concept of top/bottom image loading 2014-07-01 10:59:43 +01:00
drivers Remove broken assertion in console_putc() 2014-06-20 11:12:39 +01:00
fdts Reserve some DDR DRAM for secure use on FVP platforms 2014-05-22 17:27:28 +01:00
include Remove concept of top/bottom image loading 2014-07-01 10:59:43 +01:00
lib Merge pull request #154 from athoelke/at/inline-mmio 2014-06-26 23:02:28 +01:00
plat Remove concept of top/bottom image loading 2014-07-01 10:59:43 +01:00
services Remove current CPU mpidr from PSCI common code 2014-06-25 16:08:35 +01:00
tools/fip_create Improve BL3-0 documentation 2014-05-19 14:28:53 +01:00
.gitignore Update .gitignore 2014-02-20 19:06:34 +00:00
Makefile Merge pull request #152 from jcastillo-arm/jc/tf-issues/073-v2 2014-06-24 16:48:31 +01:00
acknowledgements.md Build system: Fixes #2: Add multi-platform support 2014-01-20 18:45:04 +00:00
contributing.md Update contributing.md with new integration process 2014-04-01 11:22:43 +01:00
license.md Update year in copyright text to 2014 2014-01-17 10:27:53 +00:00
readme.md Trusted Firmware v0.4 release documentation 2014-06-03 14:52:12 +01:00

readme.md

ARM Trusted Firmware - version 0.4

ARM Trusted Firmware provides a reference implementation of secure world software for ARMv8-A, including Exception Level 3 (EL3) software. This release focuses on support for ARM's [Fixed Virtual Platforms (FVPs)] FVP.

The intent is to provide a reference implementation of various ARM interface standards, such as the Power State Coordination Interface (PSCI), Trusted Board Boot Requirements (TBBR) and [Secure Monitor] TEE-SMC code. As far as possible the code is designed for reuse or porting to other ARMv8-A model and hardware platforms.

This release builds on previous source code releases, supporting the Base and Foundation FVP platform models from ARM.

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.

License

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 is a limited functionality implementation of the Trusted Firmware. It provides a suitable starting point for productization. Future versions will contain new features, optimizations and quality improvements.

Functionality

  • Initial implementation of a subset of the Trusted Board Boot Requirements Platform Design Document (PDD). This includes packaging the various firmware images into a Firmware Image Package (FIP) to be loaded from non-volatile storage.

  • Initializes the secure world (for example, exception vectors, control registers, GIC and interrupts for the platform), before transitioning into the normal world.

  • Supports both GICv2 and GICv3 initialization for use by normal world software.

  • Starts the normal world at the highest available Exception Level: EL2 if available, otherwise EL1.

  • Handles SMCs (Secure Monitor Calls) conforming to the [SMC Calling Convention PDD] SMCCC using an EL3 runtime services framework.

  • Handles SMCs relating to the [Power State Coordination Interface PDD] PSCI for the Secondary CPU Boot, CPU hotplug and CPU idle use-cases.

  • A Test Secure-EL1 Payload and Dispatcher to demonstrate Secure Monitor functionality such as world switching, EL1 context management and interrupt routing. This also demonstrates Secure-EL1 interaction with PSCI. Some of this functionality is provided in library form for re-use by other Secure-EL1 Payload Dispatchers.

  • Support for alternative Trusted Boot Firmware. Some platforms have their own Trusted Boot implementation and only require the Secure Monitor functionality provided by ARM Trusted Firmware.

  • Isolation of memory accessible by the secure world from the normal world through programming of a TrustZone controller.

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.

Platforms

This release of the Trusted Firmware has been tested on the following ARM FVPs (64-bit versions only):

  • Foundation_v8 (Version 2.0, Build 0.8.5206)
  • FVP_Base_AEMv8A-AEMv8A (Version 5.6, Build 0.8.5602)
  • FVP_Base_Cortex-A57x4-A53x4 (Version 5.6, Build 0.8.5602)
  • FVP_Base_Cortex-A57x1-A53x1 (Version 5.6, Build 0.8.5602)
  • FVP_Base_Cortex-A57x2-A53x4 (Version 5.6, Build 0.8.5602)

The Foundation FVP can be downloaded free of charge. The Base FVPs can be licensed from ARM: see [www.arm.com/fvp] FVP.

Still to Come

  • Support for ARMv8-A development board as a reference platform.

  • Complete Trusted Boot implementation.

  • Complete implementation of the PSCI specification.

  • Support for alternative types of Secure-EL1 Payloads.

  • Completing the currently experimental GICv3 support.

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) 2013-2014, ARM Limited and Contributors. All rights reserved.