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| author | Mario Limonciello <mario.limonciello@dell.com> | 2020-06-23 11:14:28 -0500 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-07-01 13:51:49 +0300 |
| commit | 4b794f8066e84818c172c81024f1d61071f14710 (patch) | |
| tree | 14696637a463aed139720fb4a7b8e98f6c5e911a /Documentation/ABI/testing | |
| parent | 4c767ce48cf858971545164c4c53d028e6241c07 (diff) | |
| download | lwn-4b794f8066e84818c172c81024f1d61071f14710.tar.gz lwn-4b794f8066e84818c172c81024f1d61071f14710.zip | |
thunderbolt: Add support for separating the flush to SPI and authenticate
This allows userspace to have a shorter period of time that the device
is unusable and to call it at a more convenient time.
For example flushing the image may happen while the user is using the
machine and authenticating/rebooting may happen while logging out.
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-thunderbolt | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt index bd504ed323e8..7d0500b4d58a 100644 --- a/Documentation/ABI/testing/sysfs-bus-thunderbolt +++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt @@ -178,11 +178,18 @@ KernelVersion: 4.13 Contact: thunderbolt-software@lists.01.org Description: When new NVM image is written to the non-active NVM area (through non_activeX NVMem device), the - authentication procedure is started by writing 1 to - this file. If everything goes well, the device is + authentication procedure is started by writing to + this file. + If everything goes well, the device is 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" + - 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. + When read holds status of the last authentication operation if an error occurred during the process. This is directly the status value from the DMA configuration |