diff options
| author | Wei-Ning Huang <wnhuang@google.com> | 2017-04-12 19:56:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-18 19:05:23 +0300 |
| commit | 049a59db34eb4c41a0231f983f180053db8f80d4 (patch) | |
| tree | 7ea69c30732d0825bb6a744949af6a8fe8a26551 /drivers/firmware/google/Kconfig | |
| parent | ad2ac9d5c5e0e5fa7e21575d3cd9d0227803ea99 (diff) | |
| download | linux-049a59db34eb4c41a0231f983f180053db8f80d4.tar.xz | |
firmware: Google VPD sysfs driver
This patch introduces the Google Vital Product Data driver.
This driver reads Vital Product Data from coreboot tables and then
creates the corresponding sysfs entries under /sys/firmware/vpd to
provide easy access for userspace programs (does not require flashrom).
The sysfs is structured as follow:
/sys/firmware/vpd
|-- ro
| |-- key1
| `-- key2
|-- ro_raw
|-- rw
| `-- key1
`-- rw_raw
Where ro_raw and rw_raw contain the raw VPD partition. The files under
ro and rw correspond to the key name in the VPD and the the file content
is the value for the key.
Signed-off-by: Wei-Ning Huang <wnhuang@google.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware/google/Kconfig')
| -rw-r--r-- | drivers/firmware/google/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/firmware/google/Kconfig b/drivers/firmware/google/Kconfig index 00000e0376b9..f16b381a569c 100644 --- a/drivers/firmware/google/Kconfig +++ b/drivers/firmware/google/Kconfig @@ -64,4 +64,11 @@ config GOOGLE_MEMCONSOLE_COREBOOT the coreboot table. If found, this log is exported to userland in the file /sys/firmware/log. +config GOOGLE_VPD + tristate "Vital Product Data" + depends on GOOGLE_COREBOOT_TABLE + help + This option enables the kernel to expose the content of Google VPD + under /sys/firmware/vpd. + endif # GOOGLE_FIRMWARE |