Warning

This release is now considered obsolete and has been replaced by a newer TC release. Please refer to the latest TC release documentation for more details.

Release notes - 2022.12.07

Release tag

The manifest tag for this release is TC2-2022.12.07

Components

The following is a summary of the key software features of the release:

  • BSP build supporting Android and Buildroot distro.

  • Trusted firmware-A for secure boot.

  • System control processor(SCP) firmware for programming the interconnect, doing power control etc.

  • U-Boot bootloader.

  • Hafnium for S-EL2 Secure Partition Manager core.

  • OP-TEE for Trusted Execution Environment (TEE) in Buildroot.

  • Trusted Services (Crypto and Internal Trusted Storage) in Buildroot.

  • Trusty for Trusted Execution Environment (TEE) with FF-A messaging in Android.

Hardware Features

  • Booker CI with Memory Tagging Unit(MTU) support driver in SCP firmware.

  • GIC Clayton Initialization in Trusted Firmware-A.

  • Mali-D71 DPU and virtual encoder support for display in Linux.

  • MHUv2 Driver for SCP and AP communication.

  • UARTs, Timers, Flash, PIK, Clock drivers.

  • PL180 MMC.

  • DynamIQ Shared Unit (DSU) with 8 cores. 4 Hunter + 4 Hayes cores configuration.

  • HW Root of Trust based on the TF-M RSS subsystem.

Software Features

  • Buildroot distribution support.

  • Android AOSP master support.

  • Android Common Kernel 5.15

  • With Android AOSP master support, the KVM default mode of operation is set to protected, thus effectively enabling pKVM on the system. This is a nVHE based mode with kernel running at EL1.

  • Microdroid based pVM support in Android

  • GPU and DPU using S2 translation with SMMU-700

  • Trusted Firmware-A & Hafnium v2.7

  • OP-TEE 3.18.0

  • Trusty with FF-A messaging

  • CI700-PMU enabled for profiling

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

  • System Control Processor (SCP) firmware v2.10

  • Build system based on scripts which improves build times compared to Yocto

  • U-Boot bootloader v2022.04

  • Power management features: cpufreq and cpuidle.

  • SCMI (System Control and Management Interface) support.

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

  • Hafnium as Secure Partition Manager (SPM) at S-EL2.

  • OP-TEE as Secure Partition at S-EL1, managed by S-EL2 SPMC (Hafnium)

  • Arm FF-A driver and FF-A Transport support for OP-TEE driver in Android Common Kernel.

  • OP-TEE Support in Buildroot distribution. This includes OP-TEE client and OP-TEE test suite.

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

  • Trusted Services test suite added to Buildroot distribution.

  • Shim Layer at S-EL1 running on top of S-EL2 SPMC (Hafnium) used by Trusted Services running in S-EL0.

  • Tracing - Added support for ETE and TRBE v1.0 in TF-A, kernel and simpleperf. Traces can be captured with simpleperf. However, to enable tracing, the libete plugin has to be loaded while executing the FVP with --plugin <path to plugin>/libete-plugin.so

  • Example implementation of a HW Root of Trust based on the TF-M RSS subsystem. For non-RSS based boot, please refer to the TC0/TC1 boot flows.

  • Firmware update support

Platform Support

  • The Buildroot configuration of this software release is tested on TC2 Fast Model platform (FVP). - Supported Fast model version for this release is 11.19.29

Known issues or Limitations

  1. Android boot has not been tested on the FVP and is not guaranteed to work. All validation of Android has been done on internal FPGA platforms.

  2. At the U-Boot prompt press enter and type “boot” to continue booting else wait for ~15 secs for boot to continue automatically. This is because of the time difference in CPU frequency and FVP operating frequency.

  3. Ubuntu 22.04 is not supported in this release.

  4. SVE2(Scalable Vector Extension) feature is not supported with this release

Support

For support email: support-arch@arm.com

Copyright (c) 2022, Arm Limited. All rights reserved.