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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-12-08 14:11:39 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2018-03-09 12:54:11 +0300 |
| commit | 6fc14e1a44e53c472865252b47398346a27d600e (patch) | |
| tree | 2ddc11cdf4f12749618fc06dc4969a5157fac6eb /Documentation/ABI | |
| parent | 9aaa3b8b4c56d24210acef37b7c800ca218c3d40 (diff) | |
| download | linux-6fc14e1a44e53c472865252b47398346a27d600e.tar.xz | |
thunderbolt: Introduce USB only (SL4) security level
This new security level works so that it creates one PCIe tunnel to the
connected Thunderbolt dock, removing PCIe links downstream of the dock.
This leaves only the internal USB controller visible.
Display Port tunnels are created normally.
While there make sure security sysfs attribute returns "unknown" for any
future security level.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-thunderbolt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt index 4ed229789852..151584a1f950 100644 --- a/Documentation/ABI/testing/sysfs-bus-thunderbolt +++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt @@ -35,6 +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 |