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Rudolf Marek e4be46b4c3 Following patch flushes the instruction queue when we set PE=0. This is normally
done by FAR JMP, but here it is more tricky because we run at EIP>1MB. Many
thanks to Marc and Kevin to tell me how to fix it

The trick is to use 0x66 prefix (done with ljmpl) it will allow to jump in real
mode to any EIP addresses  ;) 

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Peter Stuge <peter@stuge.se>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4124 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-04-16 21:09:56 +00:00
documentation v2/documentation: romfs -> cbfs rename 2009-04-14 00:01:34 +00:00
payloads Add high coreboot table support to libpayload 2009-03-17 16:41:01 +00:00
src Following patch flushes the instruction queue when we set PE=0. This is normally 2009-04-16 21:09:56 +00:00
targets add Config-abuild for the new board (trivial) 2009-04-07 14:27:38 +00:00
util Add -r|--remove option to force abuild to remove the output directory 2009-04-15 16:07:27 +00:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
NEWS Rename almost all occurences of LinuxBIOS to coreboot. 2008-01-18 15:08:58 +00:00
README Rename almost all occurences of LinuxBIOS to coreboot. 2008-01-18 15:08:58 +00:00

README

-------------------------------------------------------------------------------
Coreboot README
-------------------------------------------------------------------------------

Coreboot is a Free Software project aimed at replacing the proprietary
BIOS you can find in most of today's computers.

It performs just a little bit of hardware initialization and then executes
one of many possible payloads, e.g. a Linux kernel.


Payloads
--------

After the basic initialization of the hardware has been performed, any
desired "payload" can be started by coreboot. Examples include:

 * A Linux kernel
 * FILO (a simple bootloader with filesystem support)
 * GRUB2 (a free bootloader; support is in development)
 * OpenBIOS (a free IEEE1275-1994 Open Firmware implementation)
 * Open Firmware (a free IEEE1275-1994 Open Firmware implementation)
 * SmartFirmware (a free IEEE1275-1994 Open Firmware implementation)
 * GNUFI (a free, UEFI-compatible firmware)
 * Etherboot (for network booting and booting from raw IDE or FILO)
 * ADLO (for booting Windows 2000 or OpenBSD)
 * Plan 9 (a distributed operating system)
 * memtest86 (for testing your RAM)


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


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 (mostly those derived from the Linux kernel) 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.