Re: [PATCH 2/4] x86: ioremap: fix physical address check

From: H. Peter Anvin
Date: Mon Jun 14 2010 - 11:12:32 EST

On 06/14/2010 01:27 AM, Kenji Kaneshige wrote:
> Please ignore above. I misunderstood the architectural limit of physical
> address in x86 32-bit mode. It is not 40-bits, but 52-bits.

Well, it can be anywhere from 32 to 52 bits, depending on the hardware.


H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

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