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| author | Mike Waychison <mikew@google.com> | 2011-04-29 17:39:25 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-29 18:09:34 -0700 |
| commit | e561bc45920aade3f8a5aad9058a00e750af1345 (patch) | |
| tree | 5bf37c0f90e764923a2585974930f2cd9812f0a2 /drivers/firmware/google/Kconfig | |
| parent | 74c5b31c6618f01079212332b2e5f6c42f2d6307 (diff) | |
| download | op-kernel-dev-e561bc45920aade3f8a5aad9058a00e750af1345.zip op-kernel-dev-e561bc45920aade3f8a5aad9058a00e750af1345.tar.gz | |
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 'drivers/firmware/google/Kconfig')
| -rw-r--r-- | drivers/firmware/google/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/firmware/google/Kconfig b/drivers/firmware/google/Kconfig index 4a03835..640dc6b 100644 --- a/drivers/firmware/google/Kconfig +++ b/drivers/firmware/google/Kconfig @@ -7,3 +7,11 @@ config GOOGLE_SMI platforms. This provides an interface for writing to and clearing the EFI event log and reading and writing NVRAM variables. + +config GOOGLE_MEMCONSOLE + tristate "Firmware Memory Console" + depends on DMI + help + This option enables the kernel to search for a firmware log in + the EBDA on Google servers. If found, this log is exported to + userland in the file /sys/firmware/log. |
