Re: [kernel-hardening] Re: [PATCH] x86: make IDT read-only

[H. Peter Anvin]

On 04/09/2013 11:31 AM, Kees Cook wrote:
>>> ...
>>> 0xffff880001e00000-0xffff88001fe00000         480M     RW         PSE GLB NX pmd
>>>
>>
>> That is the 1:1 memory map area...
> 
> Meaning what?
> 
> -Kees
> 

That's the area in which we just map 1:1 to memory.  Anything allocated
with e.g. kmalloc() ends up with those addresses.

	-hpa


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

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