Query: Two OS

Hi everyone,

I am Franc, new to Genode,

At the starting stage, I am interested in exploring trustzone demo showed in the video :

https://www.youtube.com/watch?feature=player_embedded&v=voFV1W4yyY8

So, I have some query related to this,

As we can run two OS in both world, Genode in the secure world and other OS in the normal world, so OS running in the normal world should have different configuration from Normal bootable image or not on a particular Board ?

if we have to modify the OS image to run in the normal world then what all are the changes we have to do in that ?

cheers !!

Franc