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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-20 09:11:31 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-20 09:11:31 +0100 |
| commit | 6f005302a23fa4ea611612899cd18de76e7821b9 (patch) | |
| tree | 42a6c22af07d018f8a9a95711c4855d36150ff9d /Documentation/ABI | |
| parent | f4d029098428da68b47eaba8094b5c0887a9edc8 (diff) | |
| parent | ea9d7bb798900096f26c585957d6ad9c532417e6 (diff) | |
Merge tag 'thunderbolt-for-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into char-misc-next
Mike writes:
thunderbolt: Changes for v4.17 merge window
New features:
- Intel Titan Ridge Thunderbolt 3 controller support
- Preboot ACL supported, allowing more secure way to boot from
Thunderbolt devices
- New "USB only" security level
In addition there are a couple of fixes for increasing timeout when
authenticating the ICM firmware and reading root switch config space.
Preventing a crash on certain Lenovo systems where ICM firmware for some
reason is not always properly starting up.
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-thunderbolt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt index 93798c02e28b..151584a1f950 100644 --- a/Documentation/ABI/testing/sysfs-bus-thunderbolt +++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt @@ -1,3 +1,26 @@ +What: /sys/bus/thunderbolt/devices/.../domainX/boot_acl +Date: Jun 2018 +KernelVersion: 4.17 +Contact: thunderbolt-software@lists.01.org +Description: Holds a comma separated list of device unique_ids that + are allowed to be connected automatically during system + startup (e.g boot devices). The list always contains + maximum supported number of unique_ids where unused + entries are empty. This allows the userspace software + to determine how many entries the controller supports. + If there are multiple controllers, each controller has + its own ACL list and size may be different between the + controllers. + + System BIOS may have an option "Preboot ACL" or similar + that needs to be selected before this list is taken into + consideration. + + Software always updates a full list in each write. + + If a device is authorized automatically during boot its + boot attribute is set to 1. + What: /sys/bus/thunderbolt/devices/.../domainX/security Date: Sep 2017 KernelVersion: 4.13 @@ -12,6 +35,9 @@ Description: This attribute holds current Thunderbolt security level minimum. User needs to authorize each device. dponly: Automatically tunnel Display port (and USB). No PCIe tunnels are created. + usbonly: Automatically tunnel USB controller of the + connected Thunderbolt dock (and Display Port). All + PCIe links downstream of the dock are removed. What: /sys/bus/thunderbolt/devices/.../authorized Date: Sep 2017 @@ -38,6 +64,13 @@ Description: This attribute is used to authorize Thunderbolt devices the device did not contain a key at all, and EKEYREJECTED if the challenge response did not match. +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/.../key Date: Sep 2017 KernelVersion: 4.13 |