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413b0d9846
This new tool called `ifdfake` just creates an empty Intel Firmware Descriptor (IFD) and writes the IFD signature plus the section layout given on the command line. usage: ifdfake [(-b|-m|-g|-p) <start>:<end>]... <output file> -b | --bios <start>:<end> BIOS region -m | --me <start>:<end> Intel ME region -g | --gbe <start>:<end> Gigabit Ethernet region -p | --platform <start>:<end> Platform Data region -h | --help print this help <start> and <end> bounds are given in Bytes, the <end> bound is inclusive. All regions must be multiples of 4K in size and 4K aligned. The descriptor region always resides in the first 4K. An IFD created with ifdfake won't work as a replacement for a real IFD. Never try to flash such an IFD to your board! The output of ifdfake can be utilized to build an image with just the later added sections (like coreboot itself) being valid. The resulting image can then be partially written to a machines flash ROM to just update coreboot (i.e. the BIOS section). Change-Id: I925b47cab5c6d490a79d684bdd7a7a45ac442640 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: http://review.coreboot.org/3523 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> |
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3rdparty@ba8caa30bd | ||
documentation | ||
payloads | ||
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util | ||
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.gitreview | ||
COPYING | ||
Makefile | ||
Makefile.inc | ||
README |
------------------------------------------------------------------------------- coreboot README ------------------------------------------------------------------------------- coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload. With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required. coreboot was formerly known as LinuxBIOS. Payloads -------- After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot. See http://www.coreboot.org/Payloads for a list of supported payloads. Supported Hardware ------------------ coreboot supports a wide range of chipsets, devices, and mainboards. For details please consult: * http://www.coreboot.org/Supported_Motherboards * http://www.coreboot.org/Supported_Chipsets_and_Devices Build Requirements ------------------ * gcc / g++ * make Optional: * doxygen (for generating/viewing documentation) * iasl (for targets with ACPI support) * gdb (for better debugging facilities on some targets) * ncurses (for 'make menuconfig') * flex and bison (for regenerating parsers) Building coreboot ----------------- Please consult http://www.coreboot.org/Build_HOWTO for details. Testing coreboot Without Modifying Your Hardware ------------------------------------------------ If you want to test coreboot without any risks before you really decide to use it on your hardware, you can use the QEMU system emulator to run coreboot virtually in QEMU. Please see http://www.coreboot.org/QEMU for details. Website and Mailing List ------------------------ Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website: http://www.coreboot.org You can contact us directly on the coreboot mailing list: http://www.coreboot.org/Mailinglist Copyright and License --------------------- The copyright on coreboot is owned by quite a large number of individual developers and companies. Please check the individual source files for details. coreboot is licensed under the terms of the GNU General Public License (GPL). Some files are licensed under the "GPL (version 2, or any later version)", and some files are licensed under the "GPL, version 2". For some parts, which were derived from other projects, other (GPL-compatible) licenses may apply. Please check the individual source files for details. This makes the resulting coreboot images licensed under the GPL, version 2.