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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt8
1 files changed, 3 insertions, 5 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 90b525cf0ec2..19192b39952a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2045,11 +2045,9 @@
1 - Strict mode.
DMA unmap operations invalidate IOMMU hardware TLBs
synchronously.
- unset - Use value of CONFIG_IOMMU_DEFAULT_{LAZY,STRICT}.
- Note: on x86, the default behaviour depends on the
- equivalent driver-specific parameters, but a strict
- mode explicitly specified by either method takes
- precedence.
+ unset - Use value of CONFIG_IOMMU_DEFAULT_DMA_{LAZY,STRICT}.
+ Note: on x86, strict mode specified via one of the
+ legacy driver-specific options takes precedence.
iommu.passthrough=
[ARM64, X86] Configure DMA to bypass the IOMMU by default.