1 files changed, 2 insertions, 1 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 2af94a23a6a4..a8ba119a4d53 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1020,10 +1020,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         has the capability. With this option, super page will
                         not be supported.
         intremap=       [X86-64, Intel-IOMMU]
-                        Format: { on (default) | off | nosid }
                         on      enable Interrupt Remapping (default)
                         off     disable Interrupt Remapping
                         nosid   disable Source ID checking
+                        no_x2apic_optout
+                                BIOS x2APIC opt-out request will be ignored
 
         inttest=        [IA-64]