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authorJoerg Roedel <joerg.roedel@amd.com>2008-06-26 23:28:10 +0400
committerIngo Molnar <mingo@elte.hu>2008-06-27 12:12:22 +0400
commit54b4cbd26987f84791d6e05863a715ded9f7b3a5 (patch)
tree4dd9686564ea10943eb4b258c49fa018e4fa85ff /Documentation/kernel-parameters.txt
parent919ee7dd9a66c71e116591c07b88de0db2a387a4 (diff)
downloadlinux-54b4cbd26987f84791d6e05863a715ded9f7b3a5.tar.xz
x86, AMD IOMMU: add documentation for kernel parameters
Add documentation for the kernel parameters introduced with this driver. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e07c432c731f..fc8f93606ec1 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -271,6 +271,18 @@ and is between 256 and 4096 characters. It is defined in the file
aic79xx= [HW,SCSI]
See Documentation/scsi/aic79xx.txt.
+ amd_iommu= [HW,X86-84]
+ Pass parameters to the AMD IOMMU driver in the system.
+ Possible values are:
+ off - disable the driver for AMD IOMMU
+ isolate - enable device isolation (each device, as far
+ as possible, will get its own protection
+ domain)
+ amd_iommu_size= [HW,X86-64]
+ Define the size of the aperture for the AMD IOMMU
+ driver. Possible values are:
+ '32M', '64M' (default), '128M', '256M', '512M', '1G'
+
amijoy.map= [HW,JOY] Amiga joystick support
Map of devices attached to JOY0DAT and JOY1DAT
Format: <a>,<b>