From mboxrd@z Thu Jan  1 00:00:00 1970
From: adam8157@gmail.com (Adam Lee)
Date: Mon, 27 Dec 2010 15:31:15 +0800
Subject: Reserving physical memory in Linux
In-Reply-To: <AANLkTin0niBxCRshQRMMJxNSYxq-RDv=LRB++oJ2YOh6@mail.gmail.com>
References: <AANLkTin0niBxCRshQRMMJxNSYxq-RDv=LRB++oJ2YOh6@mail.gmail.com>
Message-ID: <AANLkTimZ_YtWSgHuxSMLqsXFu1EwXTUDL6Kq4WcL4Odb@mail.gmail.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Mon, Dec 27, 2010 at 2:59 PM, Asha R <rd.asha22@gmail.com> wrote:
> Hi,
> I want to reserve one range of physical memory say from 0x10000000 of?256MB
> in Linux. This region is required for DMA functions alone.
> Please help me understand how we can reserve this in Linux. Can this be
> done?using?boot options or any other?
>
> Regards,
> Asha

try adding "mem=256M$0x10000000" in arg.

via http://lxr.linux.no/source/Documentation/kernel-parameters.txt

-- 
Regards,
Adam Lee
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E-mail: adam8157 at gmail.com
Website: http://www.adam8157.info
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