diff options
| author | Mike Waychison <mikew@google.com> | 2011-04-30 02:39:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-30 03:09:34 +0200 |
| commit | e561bc45920aade3f8a5aad9058a00e750af1345 (patch) | |
| tree | 5bf37c0f90e764923a2585974930f2cd9812f0a2 /Documentation | |
| parent | driver: Google EFI SMI (diff) | |
| download | linux-e561bc45920aade3f8a5aad9058a00e750af1345.tar.xz linux-e561bc45920aade3f8a5aad9058a00e750af1345.zip | |
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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-firmware-log | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-firmware-log b/Documentation/ABI/testing/sysfs-firmware-log new file mode 100644 index 000000000000..9b58e7c5365f --- /dev/null +++ b/Documentation/ABI/testing/sysfs-firmware-log @@ -0,0 +1,7 @@ +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. |