-What: /sys/bus/thunderbolt/devices/.../domainX/boot_acl
+What: /sys/bus/thunderbolt/devices/.../domainX/boot_acl
Date: Jun 2018
KernelVersion: 4.17
Contact: thunderbolt-software@lists.01.org
If a device is authorized automatically during boot its
boot attribute is set to 1.
-What: /sys/bus/thunderbolt/devices/.../domainX/deauthorization
+What: /sys/bus/thunderbolt/devices/.../domainX/deauthorization
Date: May 2021
KernelVersion: 5.12
Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
de-authorize PCIe tunnel by writing 0 to authorized
attribute under each device.
-What: /sys/bus/thunderbolt/devices/.../domainX/iommu_dma_protection
+What: /sys/bus/thunderbolt/devices/.../domainX/iommu_dma_protection
Date: Mar 2019
KernelVersion: 4.21
Contact: thunderbolt-software@lists.01.org
it is not (DMA protection is solely based on Thunderbolt
security levels).
-What: /sys/bus/thunderbolt/devices/.../domainX/security
+What: /sys/bus/thunderbolt/devices/.../domainX/security
Date: Sep 2017
KernelVersion: 4.13
Contact: thunderbolt-software@lists.01.org
the BIOS.
======= ==================================================
-What: /sys/bus/thunderbolt/devices/.../authorized
+What: /sys/bus/thunderbolt/devices/.../authorized
Date: Sep 2017
KernelVersion: 4.13
Contact: thunderbolt-software@lists.01.org
EKEYREJECTED if the challenge response did not match.
== ========================================================
-What: /sys/bus/thunderbolt/devices/.../boot
+What: /sys/bus/thunderbolt/devices/.../boot
Date: Jun 2018
KernelVersion: 4.17
Contact: thunderbolt-software@lists.01.org
Description: This attribute contains 1 if Thunderbolt device was already
authorized on boot and 0 otherwise.
-What: /sys/bus/thunderbolt/devices/.../generation
+What: /sys/bus/thunderbolt/devices/.../generation
Date: Jan 2020
KernelVersion: 5.5
Contact: Christian Kellner <christian@kellner.me>
controller associated with the device. It will contain 4
for USB4.
-What: /sys/bus/thunderbolt/devices/.../key
+What: /sys/bus/thunderbolt/devices/.../key
Date: Sep 2017
KernelVersion: 4.13
Contact: thunderbolt-software@lists.01.org
based mailbox before the device is power cycled. Writing
0 here clears the status.
+What: /sys/bus/thunderbolt/devices/.../nvm_authenticate_on_disconnect
+Date: Oct 2020
+KernelVersion: v5.9
+Contact: Mario Limonciello <mario.limonciello@dell.com>
+Description: For supported devices, automatically authenticate the new Thunderbolt
+ image when the device is disconnected from the host system.
+
+ This file will accept writing values "1" or "2"
+
+ - Writing "1" will flush the image to the storage
+ area and prepare the device for authentication on disconnect.
+ - Writing "2" will run some basic validation on the image
+ and flush it to the storage area.
+
What: /sys/bus/thunderbolt/devices/<xdomain>.<service>/key
Date: Jan 2018
KernelVersion: 4.15
KernelVersion: v5.9
Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: Retimer vendor identifier read from the hardware.
-
-What: /sys/bus/thunderbolt/devices/.../nvm_authenticate_on_disconnect
-Date: Oct 2020
-KernelVersion: v5.9
-Contact: Mario Limonciello <mario.limonciello@dell.com>
-Description: For supported devices, automatically authenticate the new Thunderbolt
- image when the device is disconnected from the host system.
-
- This file will accept writing values "1" or "2"
-
- - Writing "1" will flush the image to the storage
- area and prepare the device for authentication on disconnect.
- - Writing "2" will run some basic validation on the image
- and flush it to the storage area.