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Upstream fork of ATF with a couple of rk3399 patches to remove HDCP blob and increase BAUD_RATE.
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Achin Gupta e4d084ea96 Rework BL2 to BL3-1 hand over interface 
This patch reworks BL2 to BL3-1 hand over interface by introducing a
composite structure (bl31_args) that holds the superset of information
that needs to be passed from BL2 to BL3-1.

  - The extents of secure memory available to BL3-1
  - The extents of memory available to BL3-2 (not yet implemented) and
    BL3-3
  - Information to execute BL3-2 (not yet implemented) and BL3-3 images

This patch also introduces a new platform API (bl2_get_bl31_args_ptr)
that needs to be implemented by the platform code to export reference to
bl31_args structure which has been allocated in platform-defined memory.

The platform will initialize the extents of memory available to BL3-3
during early platform setup in bl31_args structure. This obviates the
need for bl2_get_ns_mem_layout platform API.

BL2 calls the bl2_get_bl31_args_ptr function to get a reference to
bl31_args structure. It uses the 'bl33_meminfo' field of this structure
to load the BL3-3 image. It sets the entry point information for the
BL3-3 image in the 'bl33_image_info' field of this structure. The
reference to this structure is passed to the BL3-1 image.

Also fixes issue ARM-software/tf-issues#25

Change-Id: Ic36426196dd5ebf89e60ff42643bed01b3500517
 		2014-02-20 19:06:34 +00:00
arch Change comments in assembler files to help ctags 2014-01-17 10:27:53 +00:00
bl1 Rework BL2 to BL3-1 hand over interface 2014-02-20 19:06:34 +00:00
bl2 Rework BL2 to BL3-1 hand over interface 2014-02-20 19:06:34 +00:00
bl31 Rework BL2 to BL3-1 hand over interface 2014-02-20 19:06:34 +00:00
common Rework BL2 to BL3-1 hand over interface 2014-02-20 19:06:34 +00:00
docs Rework BL2 to BL3-1 hand over interface 2014-02-20 19:06:34 +00:00
drivers Add Firmware Image Package (FIP) driver 2014-02-17 18:51:44 +00:00
fdts Update year in copyright text to 2014 2014-01-17 10:27:53 +00:00
include Rework BL2 to BL3-1 hand over interface 2014-02-20 19:06:34 +00:00
lib Add support for handling runtime service requests 2014-02-17 18:51:44 +00:00
plat Rework BL2 to BL3-1 hand over interface 2014-02-20 19:06:34 +00:00
tools/fip_create Add Firmware Image Package creation tool 2014-02-17 18:51:43 +00:00
.gitignore Build system: Add cscope target to the Makefile 2014-01-30 17:55:31 +00:00
Makefile Add runtime services framework 2014-02-17 18:51:44 +00:00
acknowledgements.md Build system: Fixes #2: Add multi-platform support 2014-01-20 18:45:04 +00:00
contributing.md Allow style checking of tree and local changes 2014-01-30 17:55:31 +00:00
license.md Update year in copyright text to 2014 2014-01-17 10:27:53 +00:00
readme.md Update year in copyright text to 2014 2014-01-17 10:27:53 +00:00

readme.md

ARM Trusted Firmware - version 0.2

ARM Trusted Firmware provides a reference implementation of secure world software for ARMv8-A, including Exception Level 3 (EL3) software. This first 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 is the first one as source code: an initial prototype release was available in binary form in the [Linaro AArch64 OpenEmbedded Engineering Build] AArch64 LEB to support the new FVP Base 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 software.

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 software is an early implementation of the Trusted Firmware. Only limited functionality is provided at present and it has not been optimized or subjected to extended robustness or stress testing.

Functionality

  • Initial implementation of a subset of the Trusted Board Boot Requirements Platform Design Document (PDD).

  • 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.

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

For a full list of updated functionality and implementation details, please see the User Guide. 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):

  • FVP_Base_AEMv8A-AEMv8A (Version 5.1, Build 0.8.5108).
  • FVP_Base_Cortex-A57x4-A53x4 (Version 5.1, Build 0.8.5108).
  • FVP_Base_Cortex-A57x1-A53x1 (Version 5.1, Build 0.8.5108).

These models can be licensed from ARM: see [www.arm.com/fvp] FVP.

For an updated list of supported platforms, please see the Change Log.

Still to Come

  • Complete implementation of the PSCI specification.

  • Secure memory, Secure monitor, Test Secure OS & Secure interrupts.

  • Booting the firmware from a block device.

  • Completing the currently experimental GICv3 support.

For a full list of detailed issues in the current code, please see the Change Log.

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 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 Acknowledgements 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.