No Description

Manish Pandey c41b8e90f7 Merge "feat(tcr2): support FEAT_TCR2" into integration 3 days ago
.husky 6bb49c876c style(hooks): adds Arm copyright style fix 5 days ago
bl1 9a90d720b8 style: remove useless trailing semicolon and line continuations 1 week ago
bl2 42d4d3baac refactor(build): distinguish BL2 as TF-A entry point and BL2 running at EL3 5 days ago
bl2u da04341ed5 build: always prefix section names with `.` 4 weeks ago
bl31 fc8d2d3980 refactor(trf): enable FEAT_TRF for FEAT_STATE_CHECKED 3 weeks ago
bl32 fc8d2d3980 refactor(trf): enable FEAT_TRF for FEAT_STATE_CHECKED 3 weeks ago
common d333160366 feat(tcr2): support FEAT_TCR2 4 days ago
docs c41b8e90f7 Merge "feat(tcr2): support FEAT_TCR2" into integration 3 days ago
drivers 2519ee5ffe Merge "feat(ufs): adds timeout and error handling" into integration 3 days ago
fdts d7c455d8cc fix(pmu): switch FVP PMUv3 SPIs to PPI 1 week ago
include c41b8e90f7 Merge "feat(tcr2): support FEAT_TCR2" into integration 3 days ago
lib c41b8e90f7 Merge "feat(tcr2): support FEAT_TCR2" into integration 3 days ago
licenses 3dbbbca29e docs(license): rectify `arm-gic.h` license 1 year ago
make_helpers c41b8e90f7 Merge "feat(tcr2): support FEAT_TCR2" into integration 3 days ago
plat c41b8e90f7 Merge "feat(tcr2): support FEAT_TCR2" into integration 3 days ago
services 521d4fe676 Merge "style: remove useless trailing semicolon and line continuations" into integration 1 week ago
tools a8eadc51a3 refactor(mbedtls): avoid including MBEDTLS_CONFIG_FILE 3 weeks ago
.checkpatch.conf cf57ff8b99 Re-apply GIT_COMMIT_ID check for checkpatch 3 years ago
.commitlintrc.js 9a13b07f6a build(commitlint): make the scope optional 10 months ago
.cz.json f64c55826e refactor(hooks): replace cz-conventional-changelog with cz-commitlint 1 year ago
.editorconfig 279f77b492 .editorconfig: set max line length to 100 2 years ago
.gitignore 73f0e8ab99 chore: add encrypt_fw to gitignore 1 month ago
.gitreview 44e2a03629 Specify integration as the default branch for git-review 3 years ago
.nvmrc 3147a79162 build(npm): add NVM version file 5 months ago
.readthedocs.yaml 279e28ed35 docs: disable PDF output for documentation generation 4 days ago
.versionrc.js ba748f3c35 docs(changelog): fix broken version bumping 1 year ago
Makefile c41b8e90f7 Merge "feat(tcr2): support FEAT_TCR2" into integration 3 days ago
changelog.yaml 69c17f52f9 refactor(cpufeat): move helpers into .c file, rename FEAT_STATE_ 2 months ago
dco.txt 110740d326 Drop requirement for CLA in contribution.md 6 years ago
license.rst 8cc36aec91 doc: De-duplicate readme and license files 3 years ago
package-lock.json 0fa7fe59f3 docs(changelog): changelog for v2.8 release 4 months ago
package.json 0fa7fe59f3 docs(changelog): changelog for v2.8 release 4 months ago
readme.rst 76cf653b8a doc: Formatting fixes for readme.rst 3 years ago

readme.rst

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

Trusted Firmware-A (TF-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.

More Info and Documentation
---------------------------

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