Re: [Xen-devel] question about DomU kernel loading

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 23 Feb 2006, at 21:26, Ying.U.Wang@xxxxxxx wrote:

> Here is my experiment:
>
> 1. parse xenU kernel image, extract ".text" section from the image.
> 2. dump the domU memory from the dsi.v_start upto the size of ".text" 
> section.
> 3. compare the results from step 1 and step 2.
>
> I found that the majority of the code are the same, but still about 
> 500 bytes
> are different between these two in various locations.
>
> Could anyone tell me why are not they the same and what made the 
> difference?
The kernel modifies itself to insert the best code sequences for the 
system its running on:
e.g., add synchronisation primitives if the system is multiprocessor.

 -- Keir


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