doc: Update change log for v2.1
Change-Id: Ib6a20ffdddad11b9629d7dca7f841182299bf860 Signed-off-by: Paul Beesley <paul.beesley@arm.com>
This commit is contained in:
Paul Beesley
parent
2c269b4736
commit
9e437f2964
|
|
@ -4,6 +4,446 @@
|
|||
|
||||
.. contents::
|
||||
|
||||
Trusted Firmware-A - version 2.1
|
||||
================================
|
||||
|
||||
New Features
|
||||
------------
|
||||
|
||||
- Architecture
|
||||
- Support for ARMv8.3 pointer authentication in the normal and secure worlds
|
||||
|
||||
The use of pointer authentication in the normal world is enabled whenever
|
||||
architectural support is available, without the need for additional build
|
||||
flags.
|
||||
|
||||
Use of pointer authentication in the secure world remains an
|
||||
experimental configuration at this time. Using both the ``ENABLE_PAUTH``
|
||||
and ``CTX_INCLUDE_PAUTH_REGS`` build flags, pointer authentication can be
|
||||
enabled in EL3 and S-EL1/0.
|
||||
|
||||
See the `Firmware Design`_ document for additional details on the use of
|
||||
pointer authentication.
|
||||
|
||||
- Enable Data Independent Timing (DIT) in EL3, where supported
|
||||
|
||||
- Build System
|
||||
- Support for BL-specific build flags
|
||||
|
||||
- Support setting compiler target architecture based on ``ARM_ARCH_MINOR``
|
||||
build option.
|
||||
|
||||
- New ``RECLAIM_INIT_CODE`` build flag:
|
||||
|
||||
A significant amount of the code used for the initialization of BL31 is
|
||||
not needed again after boot time. In order to reduce the runtime memory
|
||||
footprint, the memory used for this code can be reclaimed after
|
||||
initialization.
|
||||
|
||||
Certain boot-time functions were marked with the ``__init`` attribute to
|
||||
enable this reclamation.
|
||||
|
||||
- CPU Support
|
||||
- cortex-a76: Workaround for erratum 1073348
|
||||
- cortex-a76: Workaround for erratum 1220197
|
||||
- cortex-a76: Workaround for erratum 1130799
|
||||
|
||||
- cortex-a75: Workaround for erratum 790748
|
||||
- cortex-a75: Workaround for erratum 764081
|
||||
|
||||
- cortex-a73: Workaround for erratum 852427
|
||||
- cortex-a73: Workaround for erratum 855423
|
||||
|
||||
- cortex-a57: Workaround for erratum 817169
|
||||
- cortex-a57: Workaround for erratum 814670
|
||||
|
||||
- cortex-a55: Workaround for erratum 903758
|
||||
- cortex-a55: Workaround for erratum 846532
|
||||
- cortex-a55: Workaround for erratum 798797
|
||||
- cortex-a55: Workaround for erratum 778703
|
||||
- cortex-a55: Workaround for erratum 768277
|
||||
|
||||
- cortex-a53: Workaround for erratum 819472
|
||||
- cortex-a53: Workaround for erratum 824069
|
||||
- cortex-a53: Workaround for erratum 827319
|
||||
|
||||
- cortex-a17: Workaround for erratum 852423
|
||||
- cortex-a17: Workaround for erratum 852421
|
||||
|
||||
- cortex-a15: Workaround for erratum 816470
|
||||
- cortex-a15: Workaround for erratum 827671
|
||||
|
||||
- Documentation
|
||||
- Exception Handling Framework documentation
|
||||
|
||||
- Library at ROM (romlib) documentation
|
||||
|
||||
- RAS framework documentation
|
||||
|
||||
- Coding Guidelines document
|
||||
|
||||
- Drivers
|
||||
- ccn: Add API for setting and reading node registers
|
||||
- Adds ``ccn_read_node_reg`` function
|
||||
- Adds ``ccn_write_node_reg`` function
|
||||
|
||||
- partition: Support MBR partition entries
|
||||
|
||||
- scmi: Add ``plat_css_get_scmi_info`` function
|
||||
|
||||
Adds a new API ``plat_css_get_scmi_info`` which lets the platform
|
||||
register a platform-specific instance of ``scmi_channel_plat_info_t`` and
|
||||
remove the default values
|
||||
|
||||
- tzc380: Add TZC380 TrustZone Controller driver
|
||||
|
||||
- tzc-dmc620: Add driver to manage the TrustZone Controller within the
|
||||
DMC-620 Dynamic Memory Controller
|
||||
|
||||
- Library at ROM (romlib)
|
||||
- Add platform-specific jump table list
|
||||
|
||||
- Allow patching of romlib functions
|
||||
|
||||
This change allows patching of functions in the romlib. This can be done by
|
||||
adding "patch" at the end of the jump table entry for the function that
|
||||
needs to be patched in the file jmptbl.i.
|
||||
|
||||
- Library Code
|
||||
- Support non-LPAE-enabled MMU tables in AArch32
|
||||
|
||||
- mmio: Add ``mmio_clrsetbits_16`` function
|
||||
- 16-bit variant of ``mmio_clrsetbits``
|
||||
|
||||
- object_pool: Add Object Pool Allocator
|
||||
- Manages object allocation using a fixed-size static array
|
||||
- Adds ``pool_alloc`` and ``pool_alloc_n`` functions
|
||||
- Does not provide any functions to free allocated objects (by design)
|
||||
|
||||
- libc: Added ``strlcpy`` function
|
||||
|
||||
- libc: Import ``strrchr`` function from FreeBSD
|
||||
|
||||
- xlat_tables: Add support for ARMv8.4-TTST
|
||||
|
||||
- xlat_tables: Support mapping regions without an explicitly specified VA
|
||||
|
||||
- Math
|
||||
- Added softudiv macro to support software division
|
||||
|
||||
- Memory Partitioning And Monitoring (MPAM)
|
||||
- Enabled MPAM EL2 traps (``MPAMHCR_EL2`` and ``MPAM_EL2``)
|
||||
|
||||
- Platforms
|
||||
- amlogic: Add support for Meson S905 (GXBB)
|
||||
|
||||
- arm/fvp_ve: Add support for FVP Versatile Express platform
|
||||
|
||||
- arm/n1sdp: Add support for Neoverse N1 System Development platform
|
||||
|
||||
- arm/rde1edge: Add support for Neoverse E1 platform
|
||||
|
||||
- arm/rdn1edge: Add support for Neoverse N1 platform
|
||||
|
||||
- arm: Add support for booting directly to Linux without an intermediate
|
||||
loader (AArch32)
|
||||
|
||||
- arm/juno: Enable new CPU errata workarounds for A53 and A57
|
||||
|
||||
- arm/juno: Add romlib support
|
||||
|
||||
Building a combined BL1 and ROMLIB binary file with the correct page
|
||||
alignment is now supported on the Juno platform. When ``USE_ROMLIB`` is set
|
||||
for Juno, it generates the combined file ``bl1_romlib.bin`` which needs to
|
||||
be used instead of bl1.bin.
|
||||
|
||||
- intel/stratix: Add support for Intel Stratix 10 SoC FPGA platform
|
||||
|
||||
- marvell: Add support for Armada-37xx SoC platform
|
||||
|
||||
- nxp: Add support for i.MX8M and i.MX7 Warp7 platforms
|
||||
|
||||
- renesas: Add support for R-Car Gen3 platform
|
||||
|
||||
- xilinx: Add support for Versal ACAP platforms
|
||||
|
||||
- Position-Independent Executable (PIE)
|
||||
|
||||
PIE support has initially been added to BL31. The ``ENABLE_PIE`` build flag is
|
||||
used to enable or disable this functionality as required.
|
||||
|
||||
- Secure Partition Manager
|
||||
- New, SPCI-compliant SPM implementation
|
||||
|
||||
A new version of SPM has been implemented based on draft specifications of
|
||||
the SPCI (Secure Partition Client Interface) and SPRT (Secure
|
||||
Partition Runtime) specifications.
|
||||
|
||||
The new implementation is a prototype that is expected to undergo intensive
|
||||
rework as the specifications change. It has basic support for multiple
|
||||
Secure Partitions and Resource Descriptions.
|
||||
|
||||
The old version of SPM, based on MM (ARM Management Mode Interface
|
||||
Specification), is still present in the codebase. A new build flag,
|
||||
``SPM_MM`` has been added to allow selection of the desired implementation.
|
||||
This flag defaults to 1, selecting the MM-based implementation.
|
||||
|
||||
- Security
|
||||
- Spectre Variant-1 mitigations (``CVE-2017-5753``)
|
||||
|
||||
- Use Speculation Store Bypass Safe (SSBS) functionality where available
|
||||
|
||||
Provides mitigation against ``CVE-2018-19440`` (Not saving x0 to x3
|
||||
registers can leak information from one Normal World SMC client to another)
|
||||
|
||||
|
||||
Changed
|
||||
-------
|
||||
|
||||
- Build System
|
||||
- Warning levels are now selectable with ``W=<1,2,3>``
|
||||
|
||||
- Removed unneeded include paths in PLAT_INCLUDES
|
||||
|
||||
- "Warnings as errors" (Werror) can be disabled using ``E=0``
|
||||
|
||||
- Support totally quiet output with ``-s`` flag
|
||||
|
||||
- Support passing options to checkpatch using ``CHECKPATCH_OPTS=<opts>``
|
||||
|
||||
- Invoke host compiler with ``HOSTCC / HOSTCCFLAGS`` instead of ``CC / CFLAGS``
|
||||
|
||||
- Make device tree pre-processing similar to U-boot/Linux by:
|
||||
- Creating separate ``CPPFLAGS`` for DT preprocessing so that compiler
|
||||
options specific to it can be accommodated.
|
||||
- Replacing ``CPP`` with ``PP`` for DT pre-processing
|
||||
|
||||
- CPU Support
|
||||
- Errata report function definition is now mandatory for CPU support files
|
||||
|
||||
CPU operation files must now define a ``<name>_errata_report`` function to
|
||||
print errata status. This is no longer a weak reference.
|
||||
|
||||
- Documentation
|
||||
- Migrated some content from GitHub wiki to ``docs/`` directory
|
||||
|
||||
- Security advisories now have CVE links
|
||||
|
||||
- Updated copyright guidelines
|
||||
|
||||
- Miscellaneous small fixes
|
||||
|
||||
- Drivers
|
||||
- console: The ``MULTI_CONSOLE_API`` framework has been rewritten in C
|
||||
- console: Ported multi-console driver to AArch32
|
||||
|
||||
- gic: Remove 'lowest priority' constants
|
||||
|
||||
Removed ``GIC_LOWEST_SEC_PRIORITY`` and ``GIC_LOWEST_NS_PRIORITY``.
|
||||
Platforms should define these if required, or instead determine the correct
|
||||
priority values at runtime.
|
||||
|
||||
- delay_timer: Check that the Generic Timer extension is present
|
||||
|
||||
- mmc: Increase command reply timeout to 10 milliseconds
|
||||
|
||||
- mmc: Poll eMMC device status to ensure ``EXT_CSD`` command completion
|
||||
|
||||
- mmc: Correctly check return code from ``mmc_fill_device_info``
|
||||
|
||||
- External Libraries
|
||||
|
||||
- libfdt: Upgraded from 1.4.2 to 1.4.6-9
|
||||
|
||||
- mbed TLS: Upgraded from 2.12 to 2.16
|
||||
|
||||
This change incorporates fixes for security issues that should be reviewed
|
||||
to determine if they are relevant for software implementations using
|
||||
Trusted Firmware-A. See the `mbed TLS releases`_ page for details on
|
||||
changes from the 2.12 to the 2.16 release.
|
||||
|
||||
- Library Code
|
||||
- compiler-rt: Updated ``lshrdi3.c`` and ``int_lib.h`` with changes from
|
||||
LLVM master branch (r345645)
|
||||
|
||||
- cpu: Updated macro that checks need for ``CVE-2017-5715`` mitigation
|
||||
|
||||
- libc: Made setjmp and longjmp C standard compliant
|
||||
|
||||
- libc: Allowed overriding the default libc (use ``OVERRIDE_LIBC``)
|
||||
|
||||
- libc: Moved setjmp and longjmp to the ``libc/`` directory
|
||||
|
||||
- Platforms
|
||||
- Removed Mbed TLS dependency from plat_bl_common.c
|
||||
|
||||
- arm: Removed unused ``ARM_MAP_BL_ROMLIB`` macro
|
||||
|
||||
- arm: Removed ``ARM_BOARD_OPTIMISE_MEM`` feature and build flag
|
||||
|
||||
- arm: Moved several components into ``drivers/`` directory
|
||||
|
||||
This affects the SDS, SCP, SCPI, MHU and SCMI components
|
||||
|
||||
- arm/juno: Increased maximum BL2 image size to ``0xF000``
|
||||
|
||||
This change was required to accommodate a larger ``libfdt`` library
|
||||
|
||||
- SCMI
|
||||
- Optimized bakery locks when hardware-assisted coherency is enabled using the
|
||||
``HW_ASSISTED_COHERENCY`` build flag
|
||||
|
||||
- SDEI
|
||||
- Added support for unconditionally resuming secure world execution after
|
||||
SDEI event processing completes
|
||||
|
||||
SDEI interrupts, although targeting EL3, occur on behalf of the non-secure
|
||||
world, and may have higher priority than secure world
|
||||
interrupts. Therefore they might preempt secure execution and yield
|
||||
execution to the non-secure SDEI handler. Upon completion of SDEI event
|
||||
handling, resume secure execution if it was preempted.
|
||||
|
||||
- Translation Tables (XLAT)
|
||||
- Dynamically detect need for ``Common not Private (TTBRn_ELx.CnP)`` bit
|
||||
|
||||
Properly handle the case where ``ARMv8.2-TTCNP`` is implemented in a CPU
|
||||
that does not implement all mandatory v8.2 features (and so must claim to
|
||||
implement a lower architecture version).
|
||||
|
||||
|
||||
Resolved Issues
|
||||
---------------
|
||||
|
||||
- Architecture
|
||||
- Incorrect check for SSBS feature detection
|
||||
|
||||
- Unintentional register clobber in AArch32 reset_handler function
|
||||
|
||||
- Build System
|
||||
- Dependency issue during DTB image build
|
||||
|
||||
- Incorrect variable expansion in Arm platform makefiles
|
||||
|
||||
- Building on Windows with verbose mode (``V=1``) enabled is broken
|
||||
|
||||
- AArch32 compilation flags is missing ``$(march32-directive)``
|
||||
|
||||
- BL-Specific Issues
|
||||
- bl2: ``uintptr_t is not defined`` error when ``BL2_IN_XIP_MEM`` is defined
|
||||
|
||||
- bl2: Missing prototype warning in ``bl2_arch_setup``
|
||||
|
||||
- bl31: Omission of Global Offset Table (GOT) section
|
||||
|
||||
- Code Quality Issues
|
||||
- Multiple MISRA compliance issues
|
||||
|
||||
- Potential NULL pointer dereference (Coverity-detected)
|
||||
|
||||
- Drivers
|
||||
- mmc: Local declaration of ``scr`` variable causes a cache issue when
|
||||
invalidating after the read DMA transfer completes
|
||||
|
||||
- mmc: ``ACMD41`` does not send voltage information during initialization,
|
||||
resulting in the command being treated as a query. This prevents the
|
||||
command from initializing the controller.
|
||||
|
||||
- mmc: When checking device state using ``mmc_device_state()`` there are no
|
||||
retries attempted in the event of an error
|
||||
|
||||
- ccn: Incorrect Region ID calculation for RN-I nodes
|
||||
|
||||
- console: ``Fix MULTI_CONSOLE_API`` when used as a crash console
|
||||
|
||||
- partition: Improper NULL checking in gpt.c
|
||||
|
||||
- partition: Compilation failure in ``VERBOSE`` mode (``V=1``)
|
||||
|
||||
- Library Code
|
||||
- common: Incorrect check for Address Authentication support
|
||||
|
||||
- xlat: Fix XLAT_V1 / XLAT_V2 incompatibility
|
||||
|
||||
The file ``arm_xlat_tables.h`` has been renamed to ``xlat_tables_compat.h``
|
||||
and has been moved to a common folder. This header can be used to guarantee
|
||||
compatibility, as it includes the correct header based on
|
||||
``XLAT_TABLES_LIB_V2``.
|
||||
|
||||
- xlat: armclang unused-function warning on ``xlat_clean_dcache_range``
|
||||
|
||||
- xlat: Invalid ``mm_cursor`` checks in ``mmap_add`` and ``mmap_add_ctx``
|
||||
|
||||
- sdei: Missing ``context.h`` header
|
||||
|
||||
- Platforms
|
||||
- common: Missing prototype warning for ``plat_log_get_prefix``
|
||||
|
||||
- arm: Insufficient maximum BL33 image size
|
||||
|
||||
- arm: Potential memory corruption during BL2-BL31 transition
|
||||
|
||||
On Arm platforms, the BL2 memory can be overlaid by BL31/BL32. The memory
|
||||
descriptors describing the list of executable images are created in BL2
|
||||
R/W memory, which could be possibly corrupted later on by BL31/BL32 due
|
||||
to overlay. This patch creates a reserved location in SRAM for these
|
||||
descriptors and are copied over by BL2 before handing over to next BL
|
||||
image.
|
||||
|
||||
- juno: Invalid behaviour when ``CSS_USE_SCMI_SDS_DRIVER`` is not set
|
||||
|
||||
In ``juno_pm.c`` the ``css_scmi_override_pm_ops`` function was used
|
||||
regardless of whether the build flag was set. The original behaviour has
|
||||
been restored in the case where the build flag is not set.
|
||||
|
||||
- Tools
|
||||
- fiptool: Incorrect UUID parsing of blob parameters
|
||||
|
||||
- doimage: Incorrect object rules in Makefile
|
||||
|
||||
|
||||
Deprecations
|
||||
------------
|
||||
|
||||
- Common Code
|
||||
- ``plat_crash_console_init`` function
|
||||
|
||||
- ``plat_crash_console_putc`` function
|
||||
|
||||
- ``plat_crash_console_flush`` function
|
||||
|
||||
- ``finish_console_register`` macro
|
||||
|
||||
- AArch64-specific Code
|
||||
- helpers: ``get_afflvl_shift``
|
||||
|
||||
- helpers: ``mpidr_mask_lower_afflvls``
|
||||
|
||||
- helpers: ``eret``
|
||||
|
||||
- Secure Partition Manager (SPM)
|
||||
- Boot-info structure
|
||||
|
||||
|
||||
Known Issues
|
||||
------------
|
||||
|
||||
- Build System Issues
|
||||
- dtb: DTB creation not supported when building on a Windows host.
|
||||
|
||||
This step in the build process is skipped when running on a Windows host. A
|
||||
known issue from the 1.6 release.
|
||||
|
||||
- Platform Issues
|
||||
- arm/juno: System suspend from Linux does not function as documented in the
|
||||
user guide
|
||||
|
||||
Following the instructions provided in the user guide document does not
|
||||
result in the platform entering system suspend state as expected. A message
|
||||
relating to the hdlcd driver failing to suspend will be emitted on the
|
||||
Linux terminal.
|
||||
|
||||
- mediatek/mt6795: This platform does not build in this release
|
||||
|
||||
Trusted Firmware-A - version 2.0
|
||||
================================
|
||||
|
||||
|
|
@ -1983,3 +2423,5 @@ releases of TF-A.
|
|||
.. _OP-TEE Dispatcher: optee-dispatcher.rst
|
||||
.. _tf-issue#501: https://github.com/ARM-software/tf-issues/issues/501
|
||||
.. _PR#1002: https://github.com/ARM-software/arm-trusted-firmware/pull/1002#issuecomment-312650193
|
||||
.. _mbed TLS releases: https://tls.mbed.org/tech-updates/releases
|
||||
.. _Firmware Design: firmware-design.rst
|
||||
|
|
|
|||
Loading…
Reference in New Issue