1 files changed, 6 insertions, 3 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 2b2407d9a6d0..0e4f39ff53b2 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1143,9 +1143,12 @@ and is between 256 and 4096 characters. It is defined in the file
         kgdboc=         [KGDB,HW] kgdb over consoles.
                         Requires a tty driver that supports console polling,
                         or a supported polling keyboard driver (non-usb).
-                        Serial only format: <serial_device>[,baud]
-                        keyboard only format: kbd
-                        keyboard and serial format: kbd,<serial_device>[,baud]
+                         Serial only format: <serial_device>[,baud]
+                         keyboard only format: kbd
+                         keyboard and serial format: kbd,<serial_device>[,baud]
+                        Optional Kernel mode setting:
+                         kms, kbd format: kms,kbd
+                         kms, kbd and serial format: kms,kbd,<ser_dev>[,baud]
 
         kgdbwait        [KGDB] Stop kernel execution and enter the
                         kernel debugger at the earliest opportunity.