1 files changed, 7 insertions, 2 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 0d189c93eeaf..25f8d20dac53 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1689,9 +1689,14 @@ running once the system is up.
                         decrease the size and leave more room for directly
                         mapped kernel RAM.
 
-        vmhalt=         [KNL,S390]
+        vmhalt=         [KNL,S390] Perform z/VM CP command after system halt.
+                        Format: <command>
 
-        vmpoff=         [KNL,S390]
+        vmpanic=        [KNL,S390] Perform z/VM CP command after kernel panic.
+                        Format: <command>
+
+        vmpoff=         [KNL,S390] Perform z/VM CP command after power off.
+                        Format: <command>
 
         waveartist=     [HW,OSS]
                         Format: <io>,<irq>,<dma>,<dma2>