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authorMika Westerberg <mika.westerberg@linux.intel.com>2021-04-12 15:25:08 +0300
committerMika Westerberg <mika.westerberg@linux.intel.com>2021-06-01 10:53:32 +0300
commit1cbf680f7687f55ae5a1405556519bc70d66a616 (patch)
treeeb5ac85abaffcae38f4924a2f667b84e00e62eaa /Documentation/ABI
parentff3a8306456755689babc7bcc29c60e582738c7b (diff)
thunderbolt: Allow router NVM authenticate separately
It may be useful if the actual NVM authentication can be delayed to be run later, for instance when the user logs out. For this reason add a new NVM operation (AUHENTICATE_ONLY) that just triggers the authentication procedure over whatever was written to the NVM storage. This is not supported with Thunderbolt 1-3 devices, though. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-thunderbolt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt
index f6743dc33aac..da580b504c87 100644
--- a/Documentation/ABI/testing/sysfs-bus-thunderbolt
+++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt
@@ -213,12 +213,15 @@ Description: When new NVM image is written to the non-active NVM
restarted with the new NVM firmware. If the image
verification fails an error code is returned instead.
- This file will accept writing values "1" or "2"
+ This file will accept writing values "1", "2" or "3".
- Writing "1" will flush the image to the storage
area and authenticate the image in one action.
- Writing "2" will run some basic validation on the image
and flush it to the storage area.
+ - Writing "3" will authenticate the image that is
+ currently written in the storage area. This is only
+ supported with USB4 devices.
When read holds status of the last authentication
operation if an error occurred during the process. This