1 files changed, 3 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 09ede6c90ad7..12f0fb6faaf6 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -814,6 +814,9 @@ and is between 256 and 4096 characters. It is defined in the file
 
         hlt             [BUGS=ARM,SH]
 
+        hvc_iucv=       [S390] Number of z/VM IUCV Hypervisor console (HVC)
+                               back-ends. Valid parameters: 0..8
+
         i8042.debug     [HW] Toggle i8042 debug mode
         i8042.direct    [HW] Put keyboard port into non-translated mode
         i8042.dumbkbd   [HW] Pretend that controller can only read data from