Re: [RFC][PATCH] Randomize kernel base address on boot

[H. Peter Anvin]

On 05/24/2011 04:04 PM, Dan Rosenberg wrote:
> 
>> 2. Not introduce a performance regression (we avoid locating in the
>>    bottom 16 MiB for performance reasons, except on very small systems);
> 
> I altered the boot code so that it uses CONFIG_PHYSICAL_START, which
> defaults to 16 MiB, as a lower bound on location.  So nothing will ever
> get loaded below there, and I still can take advantage of higher
> alignment granularity.  Are there other problems I'm not anticipating?
> 

Please look at the discussion as to what led us to do things this way.

	-hpa
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