1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 6390ffb520fd..fc22e9223427 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -938,6 +938,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
 
         intel_iommu=    [DMAR] Intel IOMMU driver (DMAR) option
+                on
+                        Enable intel iommu driver.
                 off
                         Disable intel iommu driver.
                 igfx_off [Default Off]