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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2018-01-21 12:08:04 +0200 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2018-03-09 12:54:11 +0300 |
| commit | 9aaa3b8b4c56d24210acef37b7c800ca218c3d40 (patch) | |
| tree | d974db9578dc47b0157aa65c30aa3ddfbbb9d9e5 /include/linux/thunderbolt.h | |
| parent | 14862ee308bbcaae0ac9927b6cbccccb51386b6c (diff) | |
| download | linux-stable-9aaa3b8b4c56d24210acef37b7c800ca218c3d40.tar.gz | |
thunderbolt: Add support for preboot ACL
Preboot ACL is a mechanism that allows connecting Thunderbolt devices
boot time in more secure way than the legacy Thunderbolt boot support.
As with the legacy boot option, this also needs to be enabled from the
BIOS before booting is allowed. Difference to the legacy mode is that
the userspace software explicitly adds device UUIDs by sending a special
message to the ICM firmware. Only the devices listed in the boot ACL are
connected automatically during the boot. This works in both "user" and
"secure" security levels.
We implement this in Linux by exposing a new sysfs attribute (boot_acl)
below each Thunderbolt domain. The userspace software can then update
the full list as needed.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Diffstat (limited to 'include/linux/thunderbolt.h')
| -rw-r--r-- | include/linux/thunderbolt.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h index 27b9be34d4b9..47251844d064 100644 --- a/include/linux/thunderbolt.h +++ b/include/linux/thunderbolt.h @@ -65,6 +65,7 @@ enum tb_security_level { * @cm_ops: Connection manager specific operations vector * @index: Linux assigned domain number * @security_level: Current security level + * @nboot_acl: Number of boot ACLs the domain supports * @privdata: Private connection manager specific data */ struct tb { @@ -77,6 +78,7 @@ struct tb { const struct tb_cm_ops *cm_ops; int index; enum tb_security_level security_level; + size_t nboot_acl; unsigned long privdata[0]; }; |