Re: [PATCH] x86: add phys addr validity check for /dev/mem mmap

From: H. Peter Anvin
Date: Wed Apr 03 2013 - 21:32:42 EST


On 04/03/2013 06:17 PM, Simon Jeons wrote:
>
> e820 also contain mmio, correct?

No.

> So cpu should not access address beyond
> e820 map(RAM+MMIO).

No.

-hpa


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