No description
Find a file
Zelalem 7006f208b6 docs(threat model): add TF-A threat model
This is the first release of the public Trusted
Firmware A class threat model. This release
provides the baseline for future updates to be
applied as required by developments to the
TF-A code base.

Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: I3c9aadc46196837679f0b1377bec9ed4fc42ff11
2021-04-30 17:59:22 +02:00
.husky build(hooks): add commitlint hook 2021-04-19 14:06:25 +01:00
bl1 Add PIE support for AARCH32 2021-04-21 15:05:57 +02:00
bl2 Add PIE support for AARCH32 2021-04-21 15:05:57 +02:00
bl2u Avoid the use of linker *_SIZE__ macros 2021-04-21 15:05:57 +02:00
bl31 Add TRNG Firmware Interface service 2021-02-05 11:49:18 +00:00
bl32 Add PIE support for AARCH32 2021-04-21 15:05:57 +02:00
common feat(fdt): introduce wrapper function to read DT UUIDs 2021-04-28 12:13:12 +01:00
docs docs(threat model): add TF-A threat model 2021-04-30 17:59:22 +02:00
drivers fix(driver/auth): avoid NV counter upgrade without certificate validation 2021-04-27 14:16:59 +01:00
fdts feat(tc0): update Matterhorn ELP DVFS clock index 2021-04-30 10:39:08 +02:00
include Merge changes from topic "fw-update" into integration 2021-04-29 14:49:10 +02:00
lib Merge changes I15e7cc43,Id7411bd5,I92bafe70,I8f1c0658 into integration 2021-04-29 13:57:31 +02:00
licenses docs(license): rectify arm-gic.h license 2021-04-26 12:36:00 +01:00
make_helpers tbbr-tools: enable override TRUSTED_KEY_CERT 2021-03-24 09:49:31 +05:30
plat Merge "plat/st: do not rely on tainted value for dt property length" into integration 2021-04-30 13:04:23 +02:00
services Merge changes from topic "od/ns-interrupts" into integration 2021-04-21 07:19:00 +02:00
tools fiptool: Do not call 'make clean' in 'all' target 2021-04-07 19:36:20 +02:00
.checkpatch.conf Re-apply GIT_COMMIT_ID check for checkpatch 2019-07-12 11:06:24 +01:00
.cz.json build(hooks): add Commitizen hook 2021-04-19 14:06:25 +01:00
.editorconfig .editorconfig: set max line length to 100 2020-12-03 15:39:23 +00:00
.gitignore build(hooks): add Husky configuration 2021-04-19 14:06:25 +01:00
.gitreview Specify integration as the default branch for git-review 2020-04-02 07:57:17 +00:00
commitlint.config.js revert(commitlint): disable signed-off-by rule 2021-04-27 16:12:10 +01:00
dco.txt Drop requirement for CLA in contribution.md 2016-09-27 21:52:03 +01:00
license.rst doc: De-duplicate readme and license files 2019-10-08 16:36:15 +00:00
Makefile Add PIE support for AARCH32 2021-04-21 15:05:57 +02:00
package-lock.json build(hooks): add commitlint hook 2021-04-19 14:06:25 +01:00
package.json build(hooks): add commitlint hook 2021-04-19 14:06:25 +01:00
readme.rst doc: Formatting fixes for readme.rst 2019-10-09 15:37:59 +00:00

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