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Message-Id: <20080630000551E.fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 30 Jun 2008 00:07:17 +0900
From: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To: joerg.roedel@....com
Cc: tglx@...utronix.de, mingo@...hat.com, linux-kernel@...r.kernel.org,
iommu@...ts.linux-foundation.org, bhavna.sarathy@....com,
Sebastian.Biemueller@....com, robert.richter@....com,
joro@...tes.org
Subject: Re: [PATCH 34/34] AMD IOMMU: add documentation for kernel
parameters
On Thu, 26 Jun 2008 21:28:10 +0200
Joerg Roedel <joerg.roedel@....com> wrote:
> Add documentation for the kernel parameters introduced with this driver.
>
> Signed-off-by: Joerg Roedel <joerg.roedel@....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>
Documentation/x86_64/boot-options.txt would be a better place?
Probabaly, it would be better to clean up x86_64 IOMMU options.
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