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Commit 54b4cbd2 authored by Joerg Roedel's avatar Joerg Roedel Committed by Ingo Molnar
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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: default avatarJoerg 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: default avatarIngo Molnar <mingo@elte.hu>
parent 919ee7dd

Documentation/kernel-parameters.txt

+12 −0
Original line number Diff line number Diff line
@@ -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>