coreboot-kgpe-d16

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Stefan Reinauer ccf28ba9cb Use -mno-sse to prevent overzealous gcc optimizations The offending part that made coreboot crash with some toolchains was that gcc emits SSE instructions but coreboot did not enable SSE at that point. Since the gain for coreboot using SSE instructions is not measurable, let's not use SSE instructions rather than enabling SSE early on. One rationale behind this is that other parts of coreboot, like the SMM handler would need fixing because the XMM registers are not saved on SMM entry. Thus keep it simple. Change-Id: I14f0942f300085767ece44cec570fb15c761e88d Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/694 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>		2012-03-03 09:15:10 +01:00
documentation	Whitespace/typo/cosmetic fixes (trivial).	2010-09-23 18:48:27 +00:00
payloads	tint requires more heap space for PDCurses.	2012-02-29 20:08:41 +01:00
src	Fix ECC disable option for AMD Fam10 DDR2 and DDR3.	2012-03-02 23:35:26 +01:00
util	Use -mno-sse to prevent overzealous gcc optimizations	2012-03-03 09:15:10 +01:00
.gitignore	romcc: kill gcc warnings and .gitignore generated files	2012-02-07 22:34:42 +01:00
COPYING	update license template.	2006-08-12 22:03:36 +00:00
Makefile	Prevent multiple inclusions of object files and rules	2011-10-28 21:48:55 +02:00
Makefile.inc	gitconfig: Add lint-stable as pre-commit hook	2012-03-01 00:04:40 +01:00
README	Update README with newer version of the text from the web page	2011-06-15 10:16:33 +02:00

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.