You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
Bipin Ravi 453abc80b2 Merge changes from topic "sb/threat-model" into integration 2 days ago
.husky build(hooks): add commitlint hook 1 year ago
bl1 fix(bl1): invalidate SP in data cache during secure SMC 3 days ago
bl2 fix(bl2): define RAM_NOLOAD for XIP 2 months ago
bl2u Avoid the use of linker *_SIZE__ macros 1 year ago
bl31 feat(brbe): add BRBE support for NS world 2 weeks ago
bl32 fix(security): update Cortex-A15 CPU lib files for CVE-2022-23960 3 weeks ago
common feat(spmc): add FFA_PARTITION_INFO_GET handler 1 week ago
docs Merge changes from topic "sb/threat-model" into integration 2 days ago
drivers Merge changes from topic "gpt-crc" into integration 2 days ago
fdts fix(stm32mp1-fdts): correct memory mapping for STM32MP13 4 days ago
include Merge changes from topic "ffa_el3_spmc" into integration 2 days ago
lib refactor(context mgmt): refactor initialization of EL1 context registers 3 days ago
licenses docs(license): rectify `arm-gic.h` license 1 year ago
make_helpers build(drtm): add DRTM support build option 3 days ago
plat Merge changes from topic "ffa_el3_spmc" into integration 2 days ago
services feat(fvp): add plat hook for memory transactions 2 days ago
tools refactor(security): upgrade tools to OpenSSL 3.0 5 days ago
.checkpatch.conf Re-apply GIT_COMMIT_ID check for checkpatch 3 years ago
.commitlintrc.js build(commitlint): make the scope optional 3 weeks ago
.cz.json refactor(hooks): replace cz-conventional-changelog with cz-commitlint 4 months ago
.editorconfig .editorconfig: set max line length to 100 1 year ago
.gitignore feat(sptool): delete c version of the sptool 2 weeks ago
.gitreview Specify integration as the default branch for git-review 2 years ago
.versionrc.js docs(changelog): fix broken version bumping 4 months ago
Makefile build(drtm): add DRTM support build option 3 days ago
changelog.yaml Merge changes from topic "mb/drtm-work-phase-1" into integration 2 days ago
dco.txt Drop requirement for CLA in contribution.md 6 years ago
license.rst doc: De-duplicate readme and license files 3 years ago
package-lock.json build(deps): bump ansi-regex from 3.0.0 to 3.0.1 3 days ago
package.json build(npm): mandate Node.js engine version 4 months ago
readme.rst 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