1 files changed, 11 insertions, 6 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 2e352a605fcf..86e9282d1c20 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -35,7 +35,6 @@ parameter is applicable:
         APM     Advanced Power Management support is enabled.
         AX25    Appropriate AX.25 support is enabled.
         CD      Appropriate CD support is enabled.
-        DEVFS   devfs support is enabled.
         DRM     Direct Rendering Management support is enabled.
         EDD     BIOS Enhanced Disk Drive Services (EDD) is enabled
         EFI     EFI Partitioning (GPT) is enabled
@@ -440,9 +439,6 @@ running once the system is up.
                         Format: <area>[,<node>]
                         See also Documentation/networking/decnet.txt.
 
-        devfs=          [DEVFS]
-                        See Documentation/filesystems/devfs/boot-options.
-
         dhash_entries=  [KNL]
                         Set number of hash buckets for dentry cache.
 
@@ -1669,6 +1665,10 @@ running once the system is up.
         usbhid.mousepoll=
                         [USBHID] The interval which mice are to be polled at.
 
+        vdso=           [IA-32]
+                        vdso=1: enable VDSO (default)
+                        vdso=0: disable VDSO mapping
+
         video=          [FB] Frame buffer configuration
                         See Documentation/fb/modedb.txt.
 
@@ -1685,9 +1685,14 @@ 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>
+
+        vmpanic=        [KNL,S390] Perform z/VM CP command after kernel panic.
+                        Format: <command>
 
-        vmpoff=         [KNL,S390]
+        vmpoff=         [KNL,S390] Perform z/VM CP command after power off.
+                        Format: <command>
 
         waveartist=     [HW,OSS]
                         Format: <io>,<irq>,<dma>,<dma2>