⚡ Document History

If you are interested in collaborating on any of the roadmap features or other features, please mail [[ https://lists.trustedfirmware.org/mailman/listinfo/tf-a | TF-A mailing list ]] **WARNING:** All dates are provisional and subject to change without notice. Items in Ongoing/Future section will be planned in detail and confirmed in due course. **Ongoing** * CPU Errata Support * Gearing up for TF-A next Release * Firmware Handoff * DSU PMU S/R support * PSA Crypto API * FF-A 1.2 enhanced Support * Firmware Update live Activation BL31 II * mbedTLS 2.x removal * Firmware Update Improvements **Future** * GICv5 Investigation * GIC v3 | NMI Support * Firmware Handoff | Platform Support * CCA Plane II/DI * CCA DA II/DI * Live FW Update * CCA Granule Delegation * 2023|2024 architecture Feature enablement * FF-A 1.1 ACS Compliance * Secure Timer Virtualization ____________________________________________________________________________________________ **2023 TF-A Releases** **TF-Av2.10 release (Nov 2023)** **Architecture extensions support :** * Arm v8.9 | 2022 Architecture extension support enabled for FEAT_HAFT,RPRFM, LRCPC3, and MTE_PERM * Non Secure SME support in RMM * PAC+ BTI support enabled in RMM and Realm * CPU support added for Gelas, Nevis and Travis cores **TF-A | EL3 Root World :** * Firmware handoff Library Support : transfer list APIs and Firmware Handoff build option * Improvements to BL31 runtime exception handling * Context management refactoring for RME/4 Worlds **Boot Support :** * Trusted Boot support for ECDSA (Elliptic Curve Digital Signature Algorithm) P- 384 keys * Migrated to PSA crypto API’s (Except for authenticated decryption feature. Also, mbedTLS legacy crypto APIs will still be supported for some time) * Improved the GUID Partition Table (GPT) parser * Various security Improvements and threat Model updates for ARM CCA * Completed PSA Attestation Support **Hafnium | S-EL2 SPM :** * Continued support for FF-A v1.2 - FFA_YIELD with time-out; EL3 SPMDs LSPs communication; memory sharing updates * Memory region relative base address field support in SP manifests * Interrupt re-configuration hypervisor calls * Memory management: S2 PT NS/S IPA split * SMCCCv1.2+ compliance fixes * Feature parity test improvements for EL3 SPMC and Hafnium **TF-RMM | R-EL2:** * TF-RMM aligned to RMM 1.0 EAC5 spec * Initial CBMC Support * Added TF-RMM Threat Model to the documentation support * Added capability to privately map the per-CPU stack in RMM **TF-A Tests:** * Added support for errata management firmware interface tests * Added support for firmware hand-off tests * Test support for SMCCCv1.2 extended GP register set * Added PAC and PMU support in Realm tests **Platform Support :** * Support for Aspeed AST2700, NXP IMX93, Intel Agilex5,Nuvoton and ST platforms **Errata ABI:** * Added 13 CPU Errata mitigations(1xCortex-X2, 1xCortex-A710, 4xNeoverse N2, 4xNeoverse V2, 2xCortex- X3 CPU, 1xCortex-A510) **Others :** * Qemu Platform Support * SDEI support added * Firmware handoff support implemented * QEMU virt platform is now supported in TF-RMM * mbedTLS Update to 3.4.1 * Crypto-cell support for 712/713 removal ( deprecation announced in TF-A 2.9) _______________________________________________________________________ **TF-Av2.9 release (May 2023)** **Architecture extensions support:** - Support for PSCI OS initiated mode - Architecture support for FEAT_TCR2, Guarded Control Stack (FEAT_GCS), Config Register Support for FEAT_HCX - Save/Restore Support for FEAT_PIE/POE, FEAT_SME | SME2, FEAT_MPAM: runtime check - Added dynamic detection of architecture feature enablement - System registers access trap handler - Eighteen CPU Errata Mitigations for Cortex-A510, A-78, X2, Neoverse V1, N2 cores and GICv3 bug fixes - Errata Management Firmware Interface implementation supported for version 1.0 of the public specification - First release done solely relying on TrustedFirmware.org Open CI - Ethos-N NPU Driver Added support for Protected Firmware Setup - EL3 SPMC enhanced feature hardening (scan warning fixes, report execution stage in partition info etc) **Arm CCA support:** - Support for Trusted Boot rooted into RSS RoT - Support for PSA attestation scheme with Measured Boot rooted into RSS. - General improvements and hardening of the boot and attestation support. - Hardening efforts in the X.509 certificate parser, including a security fix (TFV-10, CVE-2022-47630) **TF-RMM Enhancements [0.3.0] :** - Refactoring Stage 1 Translation Table to better fit RMM Usage - PMU usage in Realms as per RMM v1.0 BET0 spec - Realm support to leverage SVE hardware functionality, if enabled - Improve dynamic config of RMM by adding support for DRAM info in RMM-EL3 interface - RMM Unit test support for granule and slot-buffer components - Mask MTE capability so that realms can see that MTE is not supported - Build improvements in RMM comprising : build times, decouple dependencies during build cycle and support multi-config builds **Hafnium SPM & FF-A enablement:** * FF-A v1.2 Early Adoption * FF-A v1.1 Enhanced Support ** Interrupt handling (S-EL0 partition signaling, allow a physical interrupt to be routed to a specified PE) ** Memory sharing (support for FF-A backward compatibility, share/lend/donate memory to multiple borrowers, normal/secure fragmented memory sharing) ** Power management (events relayed to the SPMC and removed limitations) ** Indirect messaging (buffer synchronization and ownership transfer rules) ** Hardened SP manifest memory regions boot time validation ** CI migration to LLVM/clang 15.0.6 ** Removal of non-VHE build and test configurations ** Added EL3 SPMC test configurations using the Hafnium’s CI infrastructure **TF-A Tests** - support for 2021 Architecture Extensions - new tests for FEAT_RME and RMM Testing - support for FF-A v1.1 Feature testing - New cores/platforms support: - Arm TC3 CPU cores support - Power Domain support for N1SDP and Morello hardware - Allwinner T507 SoC support - Legacy support for Nvidia Tegra 210 - MT8188 | MT8195 Platform support **Qemu** : Enable Dynamic Feature Detection for Normal World ---------------------------------------------------------------------------------------------------------------------------------------- **Previous TF-A Releases** **TF-RMMv01.0/v0.2.0 first releases (November 2022)** * Reference implementation of the Arm Realm Management Monitor (RMM) [[ https://developer.arm.com/documentation/den0137/ | specification ]] * Aligned against BETA revision of the specification * Tested against TF-Av2.8 * All contributions accepted under DCO and BSD 3-Clause **TF-Av2.8 release (November 2022)** * Architecture extensions support: ** Added Pointer Authentication Extension helper support for QARMA3 (FEAT_PACQARMA3) ** Partial EL3 support for RNDR/RNDRRS (FEAT_RNG_TRAP) ** Added SVE fall back if SME not available (FEAT_SME) ** Support full SVE vector Length (FEAT_SVE) ** Added FEAT_BRBE and FEAT_TRBE under feature detection mechanism * Added support for DRTM (Dynamic Root of Trust Measurement) Phase 1 (Standard services, Complete DMA protection) * Various Errata Mitigations (Cortex-A710, A510, X3, X2, A76, A77, A78C, Neoverse N1, N2, GIC-600) * Improved SVE support (as per SMCCCv1.3) * Ethos-N Driver support for SMMU * EL3 SPMC feature hardening * FEAT_RME: ** Bootflow chain of trust support for AEM FVP ** Further developments to support TF-RMM upstreaming ** Tested interop against TF-RMM v0.2.0 * TF-A Tests support for 4 new platforms (N1SDP, RD-N2, RD-N2-Cfg1, RD-V1) * TF-A Tests FEAT_RME Realm Payload Testing * TF-A Tests FF-A v1.1 Secure interrupts Testing * Hafnium SPM & FF-A enablement: ** FF-A v1.1 additions (Interrupt handling, Memory sharing, Framework notifications and indirect messaging) ** Added FF-A console log ABI, support for GICv3.1 extended INTID ranges ** Enhanced SVE by supporting up to the maximum vector length ** FF-A v1.0 ACS test suite integration in Open CI. **TF-A-v2.7 Release features** * Architecture support: ** Armv9.2 Branch Record Buffer Extension (FEAT_BRBE) for Non-secure World support ** Armv8.7 Statistical Profiling Extension (FEAT_SPEV1P2) TF-A-Tests support ** Armv8.7 WFE/WFI instructions with Timeout (FEAT_WFxT), Increased precision of Reciprocal Estimate and Reciprocal Square Root Estimate (FEAT_RPRES) & Alternate Floating-Point (FEAT_AFP) TF-A-Tests support * *Armv8.3 Extended Cache Index (FEAT_CCIDX) support * Spectre Branch History Buffer (BHB) Mitigations * Various Software workarounds for Errata affecting Cortex-A710, A510, A78, X2 * New Architectural Features Detection Mechanism (Experimental Feature) * SMMU Granule Protection Checks (GPC) for Secure and Non-secure world transactions * FF-A & SPM: ** Secure Partition Manager (SPM) operating at EL3 (Experimental Feature) ** Hafnium: Memory Tagging Extension (MTE) stack tagging support at S-EL2 ** Hafnium FF-A implementation: ** FF-A v1.1 EAC0: Boot protocol, Setup and discovery, Notifications ** FF-A v1.1 Beta0: Interrupt handling improvements ** FF-A v1.0 compliance fixes **TF-A-v2.6 Release features** * Armv9 features support: ** Realm Management Extension (FEAT_RME): first prototype implementation (ENABLE_RME) ** Scalable Matrix Extension (FEAT_SME) enabled for Normal world use ** Trace Buffer Extension (FEAT_TRBE): enable access to trace buffer control registers from Normal world ** Embedded Trace Extension (FEAT_ETE, FEAT_ETEv1p1): enabled for Normal world use * Armv8 features support: ** Activity Monitors Extension (FEAT_AMU): enable per-core AMU auxiliary counters ** Support for the HCRX_EL2 register (FEAT_HCX) ** Scalable Vector Extension (FEAT_SVE): enabled for the Secure world ** Self-hosted Trace Extensions (FEAT_TRF) * Support for the Arm Firmware Update specification * Hafnium SPM: ** Arm FF-A v1.1 notifications support ** Arm FF-A v1.1 interrupt handling (Hafnium para-virtualized interface) ** S-EL0 partitions support through VHE architecture extension in the SW ** Save/restore NW SVE live state on world switches ** SPs to use FP/SIMD while NW uses SVE/SIMD/FP on the same core ** Updated toolchain to LLVM/Clang 12 ** Published new SPMC threat model **TF-A-v2.5 Release features** * TF-A Public Threat Model published * Armv8.7: FEAT_MTE3, FEAT_PAN3 * Armv8.6: FEAT_AMUv1p1, FEAT_MTPMU * Armv8.5: Speculation Barrier (SB) for non-Armv8.5 platforms starting from Armv8.0 (FEAT_SB) * Helper functions for Random number generator registers (FEAT_RNG) * Support for TRNG firmware interface service * SiP service to configure Ethos-N NPU * GPT Image Support aligned to Firmware update specification * S-EL2 Hafnium/FF-A: ** PAuth & BTI support ** SMMUv3.2 S-EL2 driver for stage 2 translation ** FF-A Non-secure interrupt handling ** FF-A Power management support at boot time ** FF-A Direct message interfaces & Memory sharing interfaces ** Added SPMC support to Hafnium CI ** Save/restore of Normal world FP/NEON/SIMD state

If you are interested in collaborating on any of the roadmap features or other features, please mail [[ https://lists.trustedfirmware.org/mailman/listinfo/tf-a | TF-A mailing list ]] **WARNING:** All dates are provisional and subject to change without notice. Items in Ongoing/Future section will be planned in detail and confirmed in due course. **TF-Av2.9 release ( May 2023)Ongoing** * CPU Errata Support * Gearing up for TF-A next Release * Firmware Handoff * DSU PMU S/R support * PSA Crypto API * FF-A 1.2 enhanced Support * Firmware Update live Activation BL31 II * mbedTLS 2.x removal * Firmware Update Improvements **Future** * GICv5 Investigation * GIC v3 | NMI Support * Firmware Handoff | Platform Support * CCA Plane II/DI * CCA DA II/DI * Live FW Update * CCA Granule Delegation * 2023|2024 architecture Feature enablement * FF-A 1.1 ACS Compliance * Secure Timer Virtualization ____________________________________________________________________________________________ **2023 TF-A Releases** The main highlights comprise :**TF-Av2.10 release (Nov 2023)** Support for the 2021, 2022 **Architecture extensions,s support :** Dynamic fea* Arm v8.9 | 2022 Architecture detection,extension support enabled for FEAT_HAFT,RPRFM, LRCPC3, and MTE_PERM Errata Management Firmware Interface against spec 1.0* Non Secure SME support in RMM * PAC+ BTI support enabled in RMM and Realm FF-A v1.2 Spec Early Adoption* CPU support added for Gelas, FF-A v1.1 Memory SharingNevis and Travis cores Realm Support to leverage SVE hardware functionality Architecture extensions support:**TF-A | EL3 Root World :** * Firmware handoff Library Support : transfer list APIs and Firmware Handoff build option * Improvements to BL31 runtime exception handling * Context management refactoring for RME/4 Worlds **Boot Support :** * Trusted Boot support for ECDSA (Elliptic Curve Digital Signature Algorithm) P- 384 keys * Migrated to PSA crypto API’s (Except for authenticated decryption feature. Also, mbedTLS legacy crypto APIs will still be supported for some time) * Improved the GUID Partition Table (GPT) parser * Various security Improvements and threat Model updates for ARM CCA * Completed PSA Attestation Support **Hafnium | S-EL2 SPM :** * Continued support for FF-A v1.2 - FFA_YIELD with time-out; EL3 SPMDs LSPs communication; memory sharing updates * Memory region relative base address field support in SP manifests * Interrupt re-configuration hypervisor calls * Memory management: S2 PT NS/S IPA split * SMCCCv1.2+ compliance fixes * Feature parity test improvements for EL3 SPMC and Hafnium **TF-RMM | R-EL2:** * TF-RMM aligned to RMM 1.0 EAC5 spec * Initial CBMC Support * Added TF-RMM Threat Model to the documentation support * Added capability to privately map the per-CPU stack in RMM **TF-A Tests:** S* Added support for PSCI OS initiated modeerrata management firmware interface tests Architecture* Added support for FEAT_TCR2, Guarded Control Stack (FEAT_GCS), Config Register Support for FEAT_HCXfirmware hand-off tests Save/Restore S* Test support for FEAT_PIE/POE, FEAT_SME | SME2, FEAT_MPAM: runtime checkSMCCCv1.2 extended GP register set Added dynamic detection of architecture feature enablement* Added PAC and PMU support in Realm tests **Platform Support :** * Support for Aspeed AST2700, NXP IMX93, Intel Agilex5,Nuvoton and ST platforms **Errata ABI:** * Added 13 CPU Errata mitigations(1xCortex-X2, 1xCortex-A710, 4xNeoverse N2, 4xNeoverse V2, 2xCortex- X3 CPU, 1xCortex-A510) **Others :** * Qemu Platform Support * SDEI support added * Firmware handoff support implemented * QEMU virt platform is now supported in TF-RMM * mbedTLS Update to 3.4.1 * Crypto-cell support for 712/713 removal ( deprecation announced in TF-A 2.9) _______________________________________________________________________ **TF-Av2.9 release (May 2023)** **Architecture extensions support:** System registers access trap handler - Support for PSCI OS initiated mode Added RAS extension handling and crash re - Architecture support for FEAT_TCR2, Guarded Control Stack (FEAT_GCS), Config Register Supporting for FEAT_HCX Eighteen CPU Errata Mitigations for Cortex-A510, A-78, X2 - Save/Restore Support for FEAT_PIE/POE, Neoverse V1FEAT_SME | SME2, N2 cores and GICv3 bug fixesFEAT_MPAM: runtime check Errata Management Firmware Interface implementa - Added dynamic detection supported for version 1.0 of the public specificationof architecture feature enablement First release done solely relying on TrustedFirmware.org Open CI - System registers access trap handler Ethos-N NPU Driver Added support for Protected Firmware Setup - Eighteen CPU Errata Mitigations for Cortex-A510, A-78, X2, Neoverse V1, N2 cores and GICv3 bug fixes EL3 SPMC enhanced feature hardening (scan warning fixes, re - Errata Management Firmware Interface implementation support executed for version stage in partition info etc)1.0 of the public specification Arm CCA support: - First release done solely relying on TrustedFirmware.org Open CI Support for Trusted Boot roo - Ethos-N NPU Driver Added support for Protected into RSS RoT.Firmware Setup Support for PSA attestation scheme with Measured Boot rooted into RSS. - EL3 SPMC enhanced feature hardening (scan warning fixes, report execution stage in partition info etc) General improvements and hardening of the boot and attestation**Arm CCA support.:** Hardening efforts in the X.509 certificate parser, including a security fix (TFV-10, CVE-2022-47630) - Support for Trusted Boot rooted into RSS RoT TF-RMM Enhancements: - Support for PSA attestation scheme with Measured Boot rooted into RSS. Refactoring Stage 1 Translation Table to better fit RMM Usage - General improvements and hardening of the boot and attestation support. PMU usage in Realms as per RMM v1.0 BET0 spec - Hardening efforts in the X.509 certificate parser, including a security fix (TFV-10, CVE-2022-47630) Realm support to leverage SVE hardware functionality, if enabled**TF-RMM Enhancements [0.3.0] :** Improve dynamic config of RMM by adding support for DRAM info in - Refactoring Stage 1 Translation Table to better fit RMM-EL3 interface Usage RMM Unit test support for granule and slot-buffer components - PMU usage in Realms as per RMM v1.0 BET0 spec Mask MTE capability so that realms can see that MTE is not supported - Realm support to leverage SVE hardware functionality, if enabled Build i - Improvements in RMM comprising : build times, decouple dependencies during build cycle and support multi-config buildse dynamic config of RMM by adding support for DRAM info in RMM-EL3 interface Hafnium SPM & FF-A enablement: - RMM Unit test support for granule and slot-buffer components FF-A v1.2 Early Adoption - Mask MTE capability so that realms can see that MTE is not supported Impl - Build improvemented partition info get ABI uss in RMM comprising : build times, decouple dependencies during GP registersbuild cycle and support multi-config builds Group0 secure interrupt handling delegation**Hafnium SPM & FF-A enablement:** Improved console log ABI * FF-A v1.2 Early Adoption * FF-A v1.1 Enhanced Support ** Interrupt handling (S-EL0 partition signaling, allow a physical interrupt to be routed to a specified PE) ** Memory sharing (support for FF-A backward compatibility, share/lend/donate memory to multiple borrowers, normal/secure fragmented memory sharing) ** Power management (events relayed to the SPMC and removed limitations) ** Indirect messaging (buffer synchronization and ownership transfer rules) ** Hardened SP manifest memory regions boot time validation ** CI migration to LLVM/clang 15.0.6 ** Removal of non-VHE build and test configurations ** Added EL3 SPMC test configurations using the Hafnium’s CI infrastructure **TF-A Tests** TF-A Tests - support for 2021 Architecture Extensions support - new tests for 2021 Architecture ExtensionsFEAT_RME and RMM Testing new tests - support for FEAT_RME and RMM TFF-A v1.1 Feature testing support for FF-A v1.1 Feature testing - New cores/platforms support: New cores/platform - Arm TC3 CPU cores support: Arm TC3 CPU cores support - Power Domain support for N1SDP and Morello hardware Power Domain support for N1SDP and Morello hardware - Allwinner T507 SoC support Allwinner T507 SoC support - Legacy support for Nvidia Tegra 210 Legacy support for Nvidia Tegra 210 - MT8188 | MT8195 Platform support MT8188 | MT8195 Platform support**Qemu** : Enable Dynamic Feature Detection for Normal World ---------------------------------------------------------------------------------------------------------------------------------------- Qemu : Enable Dynamic Feature Detection for Normal World **Previous TF-A Releases** **TF-RMMv01.0/v0.2.0 first releases (November 2022)** * Reference implementation of the Arm Realm Management Monitor (RMM) [[ https://developer.arm.com/documentation/den0137/ | specification ]] * Aligned against BETA revision of the specification * Tested against TF-Av2.8 * All contributions accepted under DCO and BSD 3-Clause **TF-Av2.8 release (November 2022)** * Architecture extensions support: ** Added Pointer Authentication Extension helper support for QARMA3 (FEAT_PACQARMA3) ** Partial EL3 support for RNDR/RNDRRS (FEAT_RNG_TRAP) ** Added SVE fall back if SME not available (FEAT_SME) ** Support full SVE vector Length (FEAT_SVE) ** Added FEAT_BRBE and FEAT_TRBE under feature detection mechanism * Added support for DRTM (Dynamic Root of Trust Measurement) Phase 1 (Standard services, Complete DMA protection) * Various Errata Mitigations (Cortex-A710, A510, X3, X2, A76, A77, A78C, Neoverse N1, N2, GIC-600) * Improved SVE support (as per SMCCCv1.3) * Ethos-N Driver support for SMMU * EL3 SPMC feature hardening * FEAT_RME: ** Bootflow chain of trust support for AEM FVP ** Further developments to support TF-RMM upstreaming ** Tested interop against TF-RMM v0.2.0 * TF-A Tests support for 4 new platforms (N1SDP, RD-N2, RD-N2-Cfg1, RD-V1) * TF-A Tests FEAT_RME Realm Payload Testing * TF-A Tests FF-A v1.1 Secure interrupts Testing * Hafnium SPM & FF-A enablement: ** FF-A v1.1 additions (Interrupt handling, Memory sharing, Framework notifications and indirect messaging) ** Added FF-A console log ABI, support for GICv3.1 extended INTID ranges ** Enhanced SVE by supporting up to the maximum vector length ** FF-A v1.0 ACS test suite integration in Open CI. **Ongoing** * MISRA scan (Eclair tool) integration into OpenCI * Arm 2021 Arch. extensions (v8.8) completion: FEAT_HPMN0, FEAT_RNG_TRAP, TF-A-Tests for all features * Arm 2022 Arch. extensions (v8.9) investigation * Errata ABI spec support * mbedTLS v3.0 upgrade * PSA Crypto APIs support * S-EL2 Hafnium/ SPM / FF-A: ** S-EL2 & EL3 SPM features alignment. ** SME NS regs save/restore ** VHE S-EL0 use-cases support * TF-RMM: ** SVE support **Future** * FWU Live Activation * FW Handoff spec * S-EL2 Hafnium/ SPM / FF-A: ** FF-A SMMU guidance ** FF-A Memory sharing on RME ** SPM + RME extension support * Arm DRTM spec support Phase 2: Other SMCs, region-based DMA protection * TF-RMM enablement: ** EAC spec alignment ** RAS & FWU review for 4 worlds ** SME support ** FEAT_LPA2 support ** Device Assignment support **PREVIOUS RELEASES** **TF-A-v2.7 Release features** * Architecture support: ** Armv9.2 Branch Record Buffer Extension (FEAT_BRBE) for Non-secure World support ** Armv8.7 Statistical Profiling Extension (FEAT_SPEV1P2) TF-A-Tests support ** Armv8.7 WFE/WFI instructions with Timeout (FEAT_WFxT), Increased precision of Reciprocal Estimate and Reciprocal Square Root Estimate (FEAT_RPRES) & Alternate Floating-Point (FEAT_AFP) TF-A-Tests support * *Armv8.3 Extended Cache Index (FEAT_CCIDX) support * Spectre Branch History Buffer (BHB) Mitigations * Various Software workarounds for Errata affecting Cortex-A710, A510, A78, X2 * New Architectural Features Detection Mechanism (Experimental Feature) * SMMU Granule Protection Checks (GPC) for Secure and Non-secure world transactions * FF-A & SPM: ** Secure Partition Manager (SPM) operating at EL3 (Experimental Feature) ** Hafnium: Memory Tagging Extension (MTE) stack tagging support at S-EL2 ** Hafnium FF-A implementation: ** FF-A v1.1 EAC0: Boot protocol, Setup and discovery, Notifications ** FF-A v1.1 Beta0: Interrupt handling improvements ** FF-A v1.0 compliance fixes **TF-A-v2.6 Release features** * Armv9 features support: ** Realm Management Extension (FEAT_RME): first prototype implementation (ENABLE_RME) ** Scalable Matrix Extension (FEAT_SME) enabled for Normal world use ** Trace Buffer Extension (FEAT_TRBE): enable access to trace buffer control registers from Normal world ** Embedded Trace Extension (FEAT_ETE, FEAT_ETEv1p1): enabled for Normal world use * Armv8 features support: ** Activity Monitors Extension (FEAT_AMU): enable per-core AMU auxiliary counters ** Support for the HCRX_EL2 register (FEAT_HCX) ** Scalable Vector Extension (FEAT_SVE): enabled for the Secure world ** Self-hosted Trace Extensions (FEAT_TRF) * Support for the Arm Firmware Update specification * Hafnium SPM: ** Arm FF-A v1.1 notifications support ** Arm FF-A v1.1 interrupt handling (Hafnium para-virtualized interface) ** S-EL0 partitions support through VHE architecture extension in the SW ** Save/restore NW SVE live state on world switches ** SPs to use FP/SIMD while NW uses SVE/SIMD/FP on the same core ** Updated toolchain to LLVM/Clang 12 ** Published new SPMC threat model **TF-A-v2.5 Release features** * TF-A Public Threat Model published * Armv8.7: FEAT_MTE3, FEAT_PAN3 * Armv8.6: FEAT_AMUv1p1, FEAT_MTPMU * Armv8.5: Speculation Barrier (SB) for non-Armv8.5 platforms starting from Armv8.0 (FEAT_SB) * Helper functions for Random number generator registers (FEAT_RNG) * Support for TRNG firmware interface service * SiP service to configure Ethos-N NPU * GPT Image Support aligned to Firmware update specification * S-EL2 Hafnium/FF-A: ** PAuth & BTI support ** SMMUv3.2 S-EL2 driver for stage 2 translation ** FF-A Non-secure interrupt handling ** FF-A Power management support at boot time ** FF-A Direct message interfaces & Memory sharing interfaces ** Added SPMC support to Hafnium CI ** Save/restore of Normal world FP/NEON/SIMD state

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