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linux-yocto/Documentation/ABI/testing/sysfs-firmware-log
Mike Waychison e561bc4592 driver: Google Memory Console 
This patch introduces the 'memconsole' driver.

Our firmware gives us access to an in-memory log of the firmware's
output.   This gives us visibility in a data-center of headless machines
as to what the firmware is doing.

The memory console is found by the driver by finding a header block in
the EBDA.  The buffer is then copied out, and is exported to userland in
the file /sys/firmware/log.

Signed-off-by: San Mehat <san@google.com>
Signed-off-by: Mike Waychison <mikew@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29 18:09:34 -07:00

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What: /sys/firmware/log Date: February 2011 Contact: Mike Waychison mikew@google.com Description: The /sys/firmware/log is a binary file that represents a read-only copy of the firmware's log if one is available.