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From: Joerg Roedel <joerg.roedel@amd.com>
To: tglx@linutronix.de, mingo@redhat.com
CC: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
       bhavna.sarathy@amd.com, Sebastian.Biemueller@amd.com,
       robert.richter@amd.com, joro@8bytes.org,
       Joerg Roedel <joerg.roedel@amd.com>
Subject: [PATCH 34/34] AMD IOMMU: add documentation for kernel parameters
Date: Thu, 26 Jun 2008 21:28:10 +0200
Message-ID: <1214508490-29683-35-git-send-email-joerg.roedel@amd.com>
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Add documentation for the kernel parameters introduced with this driver.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 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 e07c432..fc8f936 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>
-- 
1.5.3.7


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