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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f1e0c8ab6e9c..f628cd8d0e9f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4216,9 +4216,16 @@
per thread. The mitigation control state
is inherited on fork.
+ seccomp
+ - Same as "prctl" above, but all seccomp
+ threads will enable the mitigation unless
+ they explicitly opt out.
+
auto - Kernel selects the mitigation depending on
the available CPU features and vulnerability.
- Default is prctl.
+
+ Default mitigation:
+ If CONFIG_SECCOMP=y then "seccomp", otherwise "prctl"
Not specifying this option is equivalent to
spectre_v2_user=auto.