coreboot-kgpe-d16/util/nvramtool
Patrick Georgi a98d3061e9 nvramtool: Use CMOS_SIZE for cmos size
We write CMOS data to 128 byte files, which is a problem
when using them later-on (eg. as part of a coreboot image)
where nvramtool assumes them to be 256 byte, and so data
corruption occurs.

Change-Id: Ibc919c95f6d522866b21fd313ceb023e73d09fb9
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/3186
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-05-04 00:14:11 +02:00
..
accessors build: build coreboot on mingw. 2012-10-22 21:49:54 +02:00
cli nvramtool: Use CMOS_SIZE for cmos size 2013-05-04 00:14:11 +02:00
COPYING
ChangeLog
DISCLAIMER
Makefile GPLv2 notice: Unify all files to just use one space in »MA 02110-1301« 2013-03-01 10:16:08 +01:00
Makefile.inc GPLv2 notice: Unify all files to just use one space in »MA 02110-1301« 2013-03-01 10:16:08 +01:00
README
cbfs.c build: build coreboot on mingw. 2012-10-22 21:49:54 +02:00
cbfs.h Change "VERSION*" to more determined name "CBFS_HEADER_VERSION*". 2013-01-04 06:27:33 +01:00
cmos_lowlevel.c nvramtool: Remove the building warning on older gcc 2012-09-11 08:32:30 +02:00
cmos_lowlevel.h Move CMOS handling into separate files in accessors 2011-01-28 07:54:11 +00:00
cmos_ops.c nvramtool: Fix CMOS checksum to match coreboot (and /dev/nvram) 2011-10-22 10:33:26 +02:00
cmos_ops.h
common.c nvramtool: Unify nvramtool and build_opt_tbl 2012-04-21 09:36:24 +02:00
common.h build: build coreboot on mingw. 2012-10-22 21:49:54 +02:00
compute_ip_checksum.c
coreboot_tables.h
hexdump.c hexdump: fix compiler warning 2012-04-07 19:57:42 +02:00
hexdump.h
input_file.c No need to add varargs magic to a simple regex wrapper. 2011-01-28 07:40:08 +00:00
input_file.h
ip_checksum.h
layout.c
layout.h nvramtool: Unify nvramtool and build_opt_tbl 2012-04-21 09:36:24 +02:00
lbtable.c nvramtool: reduce memory mapping 2013-02-22 16:04:03 +01:00
lbtable.h nvramtool: Move code so it has access to the right data structures 2011-03-10 07:52:02 +00:00
nvramtool.spec
reg_expr.c No need to add varargs magic to a simple regex wrapper. 2011-01-28 07:40:08 +00:00
reg_expr.h No need to add varargs magic to a simple regex wrapper. 2011-01-28 07:40:08 +00:00
win32mmap.c build: build coreboot on mingw. 2012-10-22 21:49:54 +02:00

README

Summary of Operation
--------------------
nvramtool is a utility for reading/writing coreboot parameters and
displaying information from the coreboot table.  It is intended for x86-based
systems (both 32-bit and 64-bit) that use coreboot.

The coreboot table resides in low physical memory, and may be accessed
through the /dev/mem interface.  It is created at boot time by coreboot, and
contains various system information such as the type of mainboard in use.  It
specifies locations in the CMOS (nonvolatile RAM) where the coreboot
parameters are stored.

For information about coreboot, see http://www.coreboot.org/.

Ideas for Future Improvements
-----------------------------
1.  Move the core functionality of this program into a shared library.
2.  Consider adding options for displaying other BIOS-provided information
    such as the MP table, ACPI table, PCI IRQ routing table, etc.