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-rw-r--r--Documentation/x86_64/boot-options.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index e97a4c8fe6e..74b77f9e91b 100644
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -203,6 +203,7 @@ IOMMU
When off all DMA over >4GB is forced through an IOMMU or bounce
buffering.
nodac Forbid DMA >4GB
+ panic Always panic when IOMMU overflows
swiotlb=pages[,force]