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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>
This commit is contained in:
Joerg Roedel 2008-06-26 21:28:10 +02:00 committed by Ingo Molnar
parent 919ee7dd9a
commit 54b4cbd269
1 changed files with 12 additions and 0 deletions
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12
Documentation/kernel-parameters.txt
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@ -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>