Change Log

This document contains a summary of the new features, changes and fixes in each release of TC0 software stack.

Version 2022.02.25

Features added

  • Maximum Power Mitigation Mechanism (MPMM) Support in SCP. This is an experimental and untested feature.

Changes

  • Updated Android to S

  • Updated Trusted Firmware-A & Hafnium to v2.6

  • Updated SCP firmware to v2.9

  • Updated U-Boot to v2021.10

  • Updated Trusted Services

  • Updated Yocto repositories

  • Deprecated android-nano profile

Version 2021.07.31

Features added

  • Memory Tagging Extension (MTE)

  • Pointer Authentication Code (PAC)

  • Branch Target Identification (BTI)

Changes

  • Updated Android AOSP to master (May21)

  • Updated Android Common Kernel to v5.10

  • Updated Trusted Firmware-A & Hafnium to v2.5

  • Updated OP-TEE to v3.14.0

  • Updated SCP firmware to v2.8

  • Updated U-boot to v2021.07

  • Updated Yocto to master

Version 2021.04.23

Features added

  • Crypto and Storage Trusted Services running at S-EL0.

  • Shim Layer at S-EL1 running on top of S-EL2 SPMC (Hafnium).

Changes

  • Updated Android to R/11.

  • DEBUGFS support for Trusted Services added to Android Common Kernel.

Version 2021.02.09

Features added

  • Trusted OS OP-TEE as S-EL1 Secure Partition managed by SEL2 SPMC (Hafnium).

  • OP-TEE support in Poky Distribution.

  • Arm FF-A driver and FF-A transport support for OP-TEE driver in Android Common Kernel. This is an experimental feature.

  • DynamIQ Shared Unit (DSU) with 8 cores. 4 Matterhorn (big) cores + 4 Klein (LITTLE) cores configuration.

Changes

  • Updated Trusted Firmware-A to version 2.4.

  • Updated Hafnium (SPM) to version 2.4.

  • Updated U-boot to 2020.10

  • Updated SCP firmware to 2.7

  • Updated Yocto to 3.2 (Gatesgarth release)

Version 2020.10.29

Features added

  • Power management features: cpufreq and cpuidle.

  • SCMI (System Control and Management Interface) support.

  • Verified u-boot for authenticating fit image (containing kernel + ramdisk) during poky boot.

  • Android Verified Boot (AVB) for authenticating boot and system image during android boot.

  • Software rendering on android with DRM Hardware Composer offloading composition to Mali D71 DPU.

  • Initial support for Hafnium as Secure Partition Manager (SPM) at S-EL2, managing cactus S-EL1 test Secure Partitions (SPs). The git SHA used for Hafnium is 764fd2eb and for Trusted Firmware-A is 00ad74c7.

Changes

  • Changed from Android Common Kernel 4.19 to 5.4.

  • Changed from Cortex-M7 to Cortex-M3 based System Control Processor.

Version 2020.08.14

Features added

  • Poky Distribution support.

  • Android Q/10 Support.

  • Android Common Kernel 4.19.

  • Trusted Firmware-A.

  • Support secure boot based on TBBR specification https://developer.arm.com/documentation/den0006/latest

  • System Control Processor firmware.

  • Yocto based build system.

  • U-Boot bootloader.

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