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

From: H. Peter Anvin
Date: Tue May 31 2011 - 16:31:28 EST


On 05/31/2011 01:27 PM, Ingo Molnar wrote:
>
>> Other than that, Ingo's idea at least have the merit that it would
>> break only older bootloaders doing things wrong.
>
> I'm wondering, why would it break older bootloaders? It's just a
> slightly larger than usual kernel image, nothing is visible to the
> bootloader.
>

Older boot loaders did not know how big the kernel image was, therefore
had no way to avoid memory space collision. That is fixed in boot
protocol 2.10.

-hpa
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