No Description

Paul Beesley 8cc36aec91 doc: De-duplicate readme and license files 4 years ago
bl1 530ceda572 TF-A: Add support for ARMv8.3-PAuth in BL1 SMC calls and BL2U 4 years ago
bl2 ed108b5605 Refactor ARMv8.3 Pointer Authentication support code 4 years ago
bl2u 530ceda572 TF-A: Add support for ARMv8.3-PAuth in BL1 SMC calls and BL2U 4 years ago
bl31 80942622fe Neoverse N1 Errata Workaround 1542419 4 years ago
bl32 c3e8b0be9b AArch32: Disable Secure Cycle Counter 4 years ago
common 66799507c4 FDT helper functions: Respect architecture in PSCI function IDs 4 years ago
docs 8cc36aec91 doc: De-duplicate readme and license files 4 years ago
drivers 243b61d15a gpio: stm32_gpio: do not mix error code types 4 years ago
fdts 2dc9fe70da fdts: stm32mp1: move FDCAN to PLL4_R 4 years ago
include 9d811b856e delay: correct timeout_init_us() 4 years ago
lib 25792ce443 Merge "Neoverse N1 Errata Workaround 1542419" into integration 4 years ago
make_helpers c97cba4ea4 Fix the CAS spinlock implementation 4 years ago
plat 0711ee5cbc delay: timeout detection support 4 years ago
services a8ab58e9b2 Merge changes from topic "jc/coverity-fixes" into integration 4 years ago
tools 6a415a508e Remove RSA PKCS#1 v1.5 support from cert_tool 4 years ago
.checkpatch.conf cf57ff8b99 Re-apply GIT_COMMIT_ID check for checkpatch 4 years ago
.editorconfig 40b06510f2 Add python configuration for editorconfig 4 years ago
.gitignore 4a079c752b meson: Rename platform directory to amlogic 4 years ago
Makefile c97cba4ea4 Fix the CAS spinlock implementation 4 years ago
dco.txt 110740d326 Drop requirement for CLA in contribution.md 7 years ago
license.rst 8cc36aec91 doc: De-duplicate readme and license files 4 years ago
readme.rst 8cc36aec91 doc: De-duplicate readme and license files 4 years ago

readme.rst

Trusted Firmware-A
==================

Trusted Firmware-A is a reference implementation of secure world software for
`Arm A-Profile architectures`_ (Armv8-A and Armv7-A), including an
Exception Level 3 (EL3)`Secure Monitor`_. It provides a suitable starting point
for productization of secure world boot and runtime firmware, in either the
|AArch32| or |AArch64| execution states.

|TF-A| implements Arm interface standards, including:

- `Power State Coordination Interface (PSCI)`_
- `Trusted Board Boot Requirements CLIENT (TBBR-CLIENT)`_
- `SMC Calling Convention`_
- `System Control and Management Interface (SCMI)`_
- `Software Delegated Exception Interface (SDEI)`_

The code is designed to be portable and reusable across hardware platforms and
software models that are based on the Armv8-A and Armv7-A architectures.

In collaboration with interested parties, we will continue to enhance |TF-A|
with reference implementations of Arm standards to benefit developers working
with Armv7-A and Armv8-A TrustZone technology.

Users are encouraged to do their own security validation, including penetration
testing, on any secure world code derived from TF-A.

Read More
---------

To find out more about Trusted Firmware-A, please `view the full documentation`_
that is available through `trustedfirmware.org`_.

--------------

*Copyright (c) 2013-2019, Arm Limited and Contributors. All rights reserved.*

.. _Armv7-A and Armv8-A: https://developer.arm.com/products/architecture/a-profile
.. _Secure Monitor: http://www.arm.com/products/processors/technologies/trustzone/tee-smc.php
.. _Power State Coordination Interface (PSCI): PSCI_
.. _PSCI: http://infocenter.arm.com/help/topic/com.arm.doc.den0022d/Power_State_Coordination_Interface_PDD_v1_1_DEN0022D.pdf
.. _Trusted Board Boot Requirements CLIENT (TBBR-CLIENT): https://developer.arm.com/docs/den0006/latest/trusted-board-boot-requirements-client-tbbr-client-armv8-a
.. _SMC Calling Convention: http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf
.. _System Control and Management Interface (SCMI): SCMI_
.. _SCMI: http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/DEN0056A_System_Control_and_Management_Interface.pdf
.. _Software Delegated Exception Interface (SDEI): SDEI_
.. _SDEI: http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf
.. _Arm A-Profile architectures: https://developer.arm.com/architectures/cpu-architecture/a-profile
.. _view the full documentation: https://www.trustedfirmware.org/docs/tf-a
.. _trustedfirmware.org: http://www.trustedfirmware.org