76dab5f98f
To support the new CONFIG_CBFS_VERIFICATION feature, cbfstool needs to update the metadata hash embedded in the bootblock code every time it adds or removes a CBFS file. This can lead to problems on certain platforms where the bootblock needs to be specially wrapped in some platform-specific data structure so that the platform's masked ROM can recognize it. If that data structure contains any form of hash or signature of the bootblock code that is checked on every boot, it will no longer match if cbfstool modifies it after the fact. In general, we should always try to disable these kinds of features where possible (they're not super useful anyway). But for platforms where the hardware simply doesn't allow that, this patch introduces the concept of "platform fixups" to cbfstool. Whenever cbfstool finds a metadata hash anchor in a CBFS image, it will run all built-in "fixup probe" functions on that bootblock to check if it can recognize it as the wrapper format for a platform known to have such an issue. If so, it will register a corresponding fixup function that will run whenever it tries to write back modified data to that bootblock. The function can then modify any platform-specific headers as necessary. As first supported platform, this patch adds a fixup for Qualcomm platforms (specifically the header format used by sc7180), which recalculates the bootblock body hash originally added by util/qualcomm/createxbl.py. (Note that this feature is not intended to support platform-specific signature schemes like BootGuard directly in cbfstool. For anything that requires an actual secret key, it should be okay if the user needs to run a platform-specific signing tool on the final CBFS image before flashing. This feature is intended for the normal unsigned case (which on some platforms may be implemented as signing with a well-known key) so that on a board that is not "locked down" in any way the normal use case of manipulating an image with cbfstool and then directly flashing the output file stays working with CONFIG_CBFS_VERIFICATION.) Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I02a83a40f1d0009e6f9561ae5d2d9f37a510549a Reviewed-on: https://review.coreboot.org/c/coreboot/+/41122 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> |
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|---|---|---|
| .. | ||
| abuild | ||
| acpi | ||
| amdfwtool | ||
| amdtools | ||
| apcb | ||
| archive | ||
| autoport | ||
| bincfg | ||
| board_status | ||
| bucts | ||
| cavium | ||
| cbfstool | ||
| cbmem | ||
| chromeos | ||
| crossgcc | ||
| docker | ||
| dtd_parser | ||
| ectool | ||
| exynos | ||
| find_usbdebug | ||
| futility | ||
| fuzz-tests | ||
| genbuild_h | ||
| gitconfig | ||
| ifdtool | ||
| intelmetool | ||
| intelp2m | ||
| inteltool | ||
| intelvbttool | ||
| ipqheader | ||
| kbc1126 | ||
| kconfig | ||
| lint | ||
| mainboard | ||
| marvell | ||
| me_cleaner | ||
| mma | ||
| msrtool | ||
| mtkheader | ||
| nvidia | ||
| nvramtool | ||
| pgtblgen | ||
| pmh7tool | ||
| post | ||
| qemu | ||
| qualcomm | ||
| release | ||
| riscv | ||
| rockchip | ||
| sconfig | ||
| scripts | ||
| showdevicetree | ||
| spd_tools | ||
| spdtool | ||
| spkmodem_recv | ||
| superiotool | ||
| supermicro | ||
| testing | ||
| uio_usbdebug | ||
| util_readme | ||
| vboot_lib | ||
| vboot_list | ||
| vgabios | ||
| x86 | ||
| xcompile | ||
| README.md | ||
README.md
- abuild - coreboot autobuild script builds coreboot images for all
available targets.
bash - acpi - Walk through all ACPI tables with their addresses.
bash - amdfwtool - Create AMD Firmware combination
C - amdtools - A set of tools to compare extended) K8 memory
settings.
Perl - apcb - AMD PSP Control Block tools
- apcb_edit.py - This tool allows patching an existing APCB
binary with specific SPDs and GPIO selection pins.
Python3
- apcb_edit.py - This tool allows patching an existing APCB
binary with specific SPDs and GPIO selection pins.
- archive - Concatenate files and create an archive
C - autoport - Automated porting coreboot to Sandy Bridge/Ivy Bridge
platforms
Go - bincfg - Compiler/Decompiler for data blobs with specs
LexYacc - board_status - Tools to collect logs and upload them to the board
status repository
BashGo - bucts - A tool to manipulate the BUC.TS bit on Intel targets.
C - cavium - Devicetree_convert Tool to convert a DTB to a static C
file
Python - cbfstool
- cbfstool - For manipulating CBFS file
C - fmaptool - Converts plaintext fmd files into fmap blobs
C - rmodtool - Creates rmodules
C - ifwitool - For manipulating IFWI
C
- cbfstool - For manipulating CBFS file
- cbmem - CBMEM parser to read e.g. timestamps and console log
C - chromeos - These scripts can be used to access Chrome OS
resources, for example to extract System Agent reference code and other
blobs (e.g. mrc.bin, refcode, VGA option roms) from a Chrome OS
recovery image.
C - crossgcc - A cross toolchain builder for -elf toolchains (ie. no libc support)
- docker - Dockerfiles for coreboot-sdk, coreboot-jenkins-node, coreboot.org-status and docs.coreboot.org
- dtd_parser - DTD structure parser
Python2 - ectool - Dumps the RAM of a laptop's Embedded/Environmental
Controller (EC).
C - exynos - Computes and fills Exynos ROM checksum (for BL1 or BL2).
Python3 - find_usbdebug - Help find USB debug ports
- futility - Firmware utility for signing ChromeOS images
Make - fuzz-tests - Create test cases that crash the jpeg code.
C - genbuild_h - Generate build system definitions
Shell - gitconfig - Initialize git repository submodules install git
hooks
Bash - ifdtool - Extract and dump Intel Firmware Descriptor information
C - intelmetool - Dump interesting things about Management Engine
even if hidden
C - intelp2m - Intel Pad to Macro (intelp2m) converter 'Go'
- inteltool - Provides information about the Intel CPU/chipset
hardware configuration (register contents, MSRs, etc).
C - intelvbttool - Parse VBT from VGA BIOS
C - ipqheader
- createxbl.py - Concatentates XBL segments into one ELF
image
Python - ipqheader.py - Returns a packed MBN header image with the
specified base and size
Python - mbncat.py - Generate ipq8064 uber SBL
Python - mbn_tools.py - Contains all MBN Utilities for image
generation
Python
- createxbl.py - Concatentates XBL segments into one ELF
image
- kbc1126 - Tools used to dump the two blobs from the factory
firmware of many HP laptops with 8051-based SMSC KBC1098/KBC1126
embedded controller and insert them to the firmware image.
C - kconfig - Build system
Make - lint - Source linter and linting rules
Shell - mainboard - mainboard specific scripts
- google - Directory for google mainboard specific scripts
- marvell - Add U-Boot boot loader for Marvell ARMADA38X
C - me_cleaner - Tool for
partial deblobbing of Intel ME/TXE firmware images
Python - mma - Memory Margin Analysis automation tests
Bash - msrtool - Dumps chipset-specific MSR registers.
C - mtkheader - Generate MediaTek bootload header.
Python3 - nvidia - nvidia blob parsers
- nvramtool - Reads and writes coreboot parameters and displaying
information from the coreboot table in CMOS/NVRAM.
C - pgtblgen - Generates page tables based on fixed physical address.
C - pmh7tool - Dumps, reads and writes PMH7 registers on Lenovo
ThinkPads. PMH7 is used for switching on and off the power of some
devices on the board such as dGPU.
C - post - Userspace utility that can be used to test POST cards.
C - qemu - Makefile & comprehensive default config for QEMU Q35 emulation
- qualcomm - CMM script to debug Qualcomm coreboot environments.
CMM - release - Generate coreboot release
Bash - riscv
- make-spike-elf.sh - Converts a flat file into an ELF, that
can be passed to SPIKE, the RISC-V reference emulator.
Bash - sifive-gpt.py - Wraps the bootblock in a GPT partition for
SiFive's bootrom.
Python3
- make-spike-elf.sh - Converts a flat file into an ELF, that
can be passed to SPIKE, the RISC-V reference emulator.
- rockchip - Generate Rockchip idblock bootloader.
Python3 - sconfig - coreboot device tree compiler
LexYacc - scripts
- config - Manipulate options in a .config file from the
command line
Bash - cross-repo-cherrypick - Pull in patches from another tree
from a gerrit repository.
Shell - decode_spd.sh - Decodes Serial Presence Detect (SPD) files into various human readable formats.
- dts-to-fmd.sh -Converts a depthcharge fmap.dts into an
fmaptool compatible .fmd format
Bash - find-unused-kconfig-symbols.sh - Points out Kconfig
variables that may be unused. There are some false positives, but it
serves as a starting point
Shell - gerrit-rebase - Applies all commits that from-branch has
over to-branch, based on a common ancestor and gerrit meta-data
Bash - get_maintainer.pl - Print selected MAINTAINERS information
for the files modified in a patch or for a file
Perl - maintainers.go - Build subsystem Maintainers
Go - no-fsf-addresses.sh - Removes various FSF addresses from
license headers
Shell - parse-maintainers.pl - Script to alphabetize MAINTAINERS
file
Perl - ucode_h_to_bin.sh - Microcode conversion tool
Bash - update_submodules - Check all submodules for updates
Bash
- config - Manipulate options in a .config file from the
command line
- showdevicetree - Compile and dump the device tree
C - spdtool - Dumps SPD ROMs from a given blob to separate files
using known patterns and reserved bits. Useful for analysing firmware
that holds SPDs on boards that have soldered down DRAM.
python - spd_tools - Tools for generating SPD files for DDR4 memory used
in platforms with memory down configuration.
- gen_spd.go - Generates de-duplicated SPD files using a
global memory part list provided by the mainboard in JSON format.
Go - gen_part_id.go - Allocates DRAM strap IDs for different
DDR4 memory parts used by the board.
Go
- gen_spd.go - Generates de-duplicated SPD files using a
global memory part list provided by the mainboard in JSON format.
- spkmodem_recv - Decode spkmodem signals
C - superiotool - A user-space utility to detect Super I/O of a
mainboard and provide detailed information about the register contents
of the Super I/O.
C - supermicro - Tools for supermicro platforms
- smcbiosinfo - Generates SMC biosinfo for BMC BIOS updates
C
- smcbiosinfo - Generates SMC biosinfo for BMC BIOS updates
- testing - coreboot test targets
Make - uio_usbdebug - Debug coreboot's usbdebug driver inside a running
operating system (only Linux at this time).
C - util_readme - Creates README.md of description files in
./utilsubdirectoriesBash - vboot_list - Tools to generate a list of vboot enabled devices to
the documentation
Bash - vgabios - emulated vga driver for qemu
C - x86 - Generates 32-bit PAE page tables based on a CSV input file.
Go - xcompile - Cross compile setup
Bash