172 lines
5.2 KiB
ReStructuredText
172 lines
5.2 KiB
ReStructuredText
Change Log for Upcoming Release
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===============================
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This document contains a summary of the new features, changes, fixes and known
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issues to be included in the upcoming release of Trusted Firmware-A. The contents
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of this file will be moved to the collective change-log.rst file at the time of
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release code freeze.
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Upcoming Release Version 2.3
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----------------------------
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**Trusted Firmware-A Contributors,
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Please log all relevant new features, changes, fixes, and known issues for the
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upcoming release. For the CPU support, drivers, and tools sections please preface
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the log description with the relevant key word, example: "<CPU>: <CPU Support
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addition>". Use the RST format convention already used in the Change Log.**
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New Features
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^^^^^^^^^^^^
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- Arm Architecture
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- Add support for Armv8.4-SecEL2 extension through the SPCI defined SPMD/SPMC
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components.
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- Build option to support EL2 context save and restore in the secure world
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(CTX_INCLUDE_EL2_REGS).
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- Example: "Add support for Branch Target Identification (BTI)"
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- BL-specific
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- Enhanced BL2 bootloader flow to load secure partitions based on firmware
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configuration data (fconf).
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- Build System
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- Add support for documentation build as a target in Makefile
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- Add ``COT`` build option to select the chain of trust to use when the
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Trusted Boot feature is enabled (default: ``tbbr``).
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- Added creation and injection of secure partition packages into the FIP.
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- Build option to support SPMC component loading and run at S-EL1
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or S-EL2 (SPMD_SPM_AT_SEL2).
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- CPU Support
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- Example: "cortex-a55: Workaround for erratum 1221012"
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- Use Speculation Barrier instruction for v8.5+ cores
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- Drivers
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- Example: "console: Allow the console to register multiple times"
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- Libraries
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- Example: "Introduce BTI support in Library at ROM (romlib)"
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- Add Firmware Configuration Framework (fconf).
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- Add DebugFS functionality
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- New Platforms Support
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- Example: "qemu/qemu_sbsa: New platform support added for QEMU SBSA platform"
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- Platforms
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- Example: "arm/common: Introduce wrapper functions to setup secure watchdog"
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- plat/arm: Add support for the new `dualroot` chain of trust.
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- plat/arm/fvp: Add support for fconf in BL31 and SP_MIN. Populate power
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domain desciptor dynamically by leveraging fconf APIs.
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- PSCI
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- Example: "Adding new optional PSCI hook ``pwr_domain_on_finish_late``"
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- Security
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- Example: "UBSAN support and handlers"
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- Add support for optional firmware encryption feature (experimental).
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- Introduce a new `dualroot` chain of trust.
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- aarch32: stop speculative execution past exception returns.
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- SPCI
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- Introduced the SPM Dispatcher (SPMD) component as a new standard service.
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- Tools
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- Example: "fiptool: Add support to build fiptool on Windows."
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Changed
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^^^^^^^
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- Arm Architecture
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- Example: "Refactor ARMv8.3 Pointer Authentication support code"
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- BL-Specific
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- Example: "BL2: Invalidate dcache build option for BL2 entry at EL3"
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- Boot Flow
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- Example: "Add helper to parse BL31 parameters (both versions)"
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- Drivers
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- Example: "gicv3: Prevent pending G1S interrupt from becoming G0 interrupt"
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- Platforms
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- Example: "arm/common: Shorten the Firmware Update (FWU) process"
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- PSCI
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- Example: "PSCI: Lookup list of parent nodes to lock only once"
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- Secure Partition Manager (SPM)
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- Example: "Move shim layer to TTBR1_EL1"
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- Security
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- Example: "Refactor SPSR initialisation code"
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- Tools
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- sptool updated to accomodate building secure partition packages.
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- Example: "cert_create: Remove RSA PKCS#1 v1.5 support"
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Resolved Issues
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^^^^^^^^^^^^^^^
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- Arm Architecture
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- Example: "Fix restoration of PAuth context"
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- BL-Specific
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- Example: "Fix BL31 crash reporting on AArch64 only platforms"
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- Build System
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- Example: "Remove several warnings reported with W=2 and W=1"
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- Code Quality
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- Example: "Unify type of "cpu_idx" across PSCI module"
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- CPU Support
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- Example: "cortex-a12: Fix MIDR mask"
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- Drivers
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- Example: "scmi: Fix wrong payload length"
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- Library Code
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- Example: "libc: Fix memchr implementation"
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- Platforms
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- Example: "rpi: rpi3: Fix compilation error when stack protector is enabled"
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- Security
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- Example: "AArch32: Disable Secure Cycle Counter"
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Deprecations
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^^^^^^^^^^^^
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- Common Code
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- Example: "Remove MULTI_CONSOLE_API flag and references to it"
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- Drivers
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- Example: "console: Remove deprecated finish_console_register"
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- Secure Partition Manager (SPM):
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- Example: "Prototype SPCI-based SPM (services/std_svc/spm) will be replaced
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with alternative methods of secure partitioning support."
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Known Issues
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^^^^^^^^^^^^
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- Build System
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- dtb: DTB creation not supported when building on a Windows host.
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This step in the build process is skipped when running on a Windows host. A
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known issue from the 1.6 release.
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- Platforms
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- arm/juno: System suspend from Linux does not function as documented in the
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user guide
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Following the instructions provided in the user guide document does not
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result in the platform entering system suspend state as expected. A message
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relating to the hdlcd driver failing to suspend will be emitted on the
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Linux terminal.
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- mediatek/mt6795: This platform does not build in this release
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