mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-16 17:44:19 +00:00
No description
1922875233
SPM-MM defines AP TZC-400 regions as such: 1: 0xff000000 0xffffffff S 2: 0x80000000 0xfeffffff NS 3: 0x880000000 0xfffffffff NS 4: 0xff600000 0xff60ffff NS Region 4 (using filter 0) defines the SPM NS shared buffer between normal world and secure world. However region 4 overlaps with region 1 (using filter 0) defined as secure. It is forbidden to define overlapping regions beyond region 0 for the same filter. This is reported as a violation in the TZC-400 controller. With FVP models < 11.25 the error is latent but not reported to the PE (reason for this behavior is unclear). With greater FVP model version the error is reported as an asynchronous external abort (SError exception). By carving out the SPM NS shared region (with regions as defined below), the violation is no longer reported and test passed with recent FVP models: 1: 0x80000000 0xfeffffff NS 2: 0xff000000 0xff5fffff S 3: 0xff600000 0xff60ffff NS 4: 0xff610000 0xffffffff S 5: 0x880000000 0xfffffffff NS Signed-off-by: Olivier Deprez <olivier.deprez@arm.com> Change-Id: Idc3370803ad204ac29efeded77305e52e17cc1c1 |
||
|---|---|---|
| .husky | ||
| bl1 | ||
| bl2 | ||
| bl2u | ||
| bl31 | ||
| bl32 | ||
| common | ||
| docs | ||
| drivers | ||
| fdts | ||
| include | ||
| lib | ||
| licenses | ||
| make_helpers | ||
| plat | ||
| services | ||
| tools | ||
| .checkpatch.conf | ||
| .commitlintrc.js | ||
| .cz-adapter.cjs | ||
| .cz.json | ||
| .editorconfig | ||
| .gitignore | ||
| .gitreview | ||
| .nvmrc | ||
| .readthedocs.yaml | ||
| .versionrc.cjs | ||
| changelog.yaml | ||
| dco.txt | ||
| license.rst | ||
| Makefile | ||
| package-lock.json | ||
| package.json | ||
| poetry.lock | ||
| pyproject.toml | ||
| 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 .. _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