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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-06-26 21:28:10 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-27 10:12:22 +0200 |
| commit | 54b4cbd26987f84791d6e05863a715ded9f7b3a5 (patch) | |
| tree | 4dd9686564ea10943eb4b258c49fa018e4fa85ff /Documentation/kernel-parameters.txt | |
| parent | 919ee7dd9a66c71e116591c07b88de0db2a387a4 (diff) | |
| download | lwn-54b4cbd26987f84791d6e05863a715ded9f7b3a5.tar.gz lwn-54b4cbd26987f84791d6e05863a715ded9f7b3a5.zip | |
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.txt | 12 |
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> |