Version 1.4.0

New major features

Documentation restructure and enhancements.

PSA Crypto migrates to Mbed TLS ‘v3.0.0’.

First-Level Interrupt Handling (FLIH) 1 proof of concept on AN521 and MUSCA-B1.

Firmware Update service enhancement to support image update with dependencies.

Partitions get loaded with Static Load mechanism.

Decouple NS RTOS specific implementation from NS interface.

PSA Crypto API interface updated to be based on Stateless Handle.

MCUboot updated to version ‘TF-Mv1.4-integ’ to support multiple images in RAM_LOAD and DIRECT_XIP upgrade strategies.

New platforms added. See New platforms supported for details.

New security advisories

‘abort’ function may not take effect in some TF-M Crypto multi-part operations

Refer to Advisory TFMV-3 for more details. The mitigation is included in this release.

New platforms supported

Cortex-M33 based system:

BL5340 DVK.

Deprecated platforms

The following platforms have been removed from TF-M code base.

nRF5340 PDK

Musca_A

See Platform deprecation and removal for other platforms under deprecation process.

Tested platforms

The following platforms are successfully tested in this release.

AN519
AN521
AN524
AN547
LPCXpresso55S69
Musca-B1
Musca-B1 Secure Enclave
Musca-S1
M2351
M2354
NUCLEO-L552ZE-Q
nrf5340dk
nrf9160dk
PSoC 64
STM32L562E-DK

Known issues

Some open issues are not fixed in this release.

Descriptions	Issue links
PSA Arch Crypto test suite have several known failures.	See this link for detailed analysis of the failures.
Protected Storage Regression test 4001 is stuck on SSE-300 in isolation level 2 when PXN is enabled.	https://developer.trustedfirmware.org/T902
NS interrupt masking prevents from executing PSA calls.	https://developer.trustedfirmware.org/T950
Image size overflow on Musca-B1 PSA Arch test suite debug build.	https://developer.trustedfirmware.org/T952
Build errors in PSA api tests for initial attestation.	https://developer.trustedfirmware.org/T953
Non Secure Image size overflow on STM32L562E-DK PSA Arch Crypto.	https://developer.trustedfirmware.org/T954

Issues fixed since 1.3.0

Issues fixed by TF-M since v1.3.0 are listed below.

Descriptions	Issue links
IPC Regression test fail when non-secure regression test is enabled and secure regression test is disabled.	https://developer.trustedfirmware.org/T903
Panic test in PSA Arch IPC test suite generates inconsistent results between Armclang and GNUARM.	https://developer.trustedfirmware.org/T909

Reference

1

Arm Firmware Framework for M 1.1 Extensions