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SubjectRe: [PATCH] x86: add phys addr validity check for /dev/mem mmap
Hi H.Peter,
On 04/04/2013 09:32 AM, H. Peter Anvin wrote:
> On 04/03/2013 06:17 PM, Simon Jeons wrote:
>> e820 also contain mmio, correct?
> No.

How to check which address is used by mmio? /proc/iomem, correct?

>
>> So cpu should not access address beyond
>> e820 map(RAM+MMIO).
> No.
>
> -hpa
>
>



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