Merge branches 'iommu/page-sizes' and 'iommu/group-id' into next
[~shefty/rdma-dev.git] / Documentation / kernel-parameters.txt
index e1b6e44698459c01307319369c10c4adea41eba9..8f540d8abec589ff17b844f1373fb6704f2907c8 100644 (file)
@@ -315,12 +315,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        CPU-intensive style benchmark, and it can vary highly in
                        a microbenchmark depending on workload and compiler.
 
-                       1: only for 32-bit processes
-                       2: only for 64-bit processes
+                       32: only for 32-bit processes
+                       64: only for 64-bit processes
                        on: enable for both 32- and 64-bit processes
                        off: disable for both 32- and 64-bit processes
 
-       amd_iommu=      [HW,X86-84]
+       amd_iommu=      [HW,X86-64]
                        Pass parameters to the AMD IOMMU driver in the system.
                        Possible values are:
                        fullflush - enable flushing of IO/TLB entries when
@@ -329,6 +329,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                    is a lot of faster
                        off       - do not initialize any AMD IOMMU found in
                                    the system
+                       force_isolation - Force device isolation for all
+                                         devices. The IOMMU driver is not
+                                         allowed anymore to lift isolation
+                                         requirements as needed. This option
+                                         does not override iommu=pt
 
        amijoy.map=     [HW,JOY] Amiga joystick support
                        Map of devices attached to JOY0DAT and JOY1DAT