Reserving physical memory in Linux

Adam Lee adam8157 at
Mon Dec 27 02:31:15 EST 2010

On Mon, Dec 27, 2010 at 2:59 PM, Asha R <rd.asha22 at> 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.


Adam Lee
E-mail: adam8157 at

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