diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index fcaa8558ed7e..f02961bda6f4 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3885,6 +3885,12 @@
 			[KNL] Should the soft-lockup detector generate panics.
 			Format: <integer>
 
+			A nonzero value instructs the soft-lockup detector
+			to panic the machine when a soft-lockup occurs. This
+			is also controlled by CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC
+			which is the respective build-time switch to that
+			functionality.
+
 	softlockup_all_cpu_backtrace=
 			[KNL] Should the soft-lockup detector generate
 			backtraces on all cpus.