[coreboot] Cache as RAM - is it possible to execute code in cache?

ron minnich rminnich at gmail.com
Fri Sep 5 09:46:49 CEST 2008

On Fri, Sep 5, 2008 at 12:45 AM, Jackie Pan <jackiepan93 at gmail.com> wrote:
> Hi all,
> I'm wondering if it's possible to place code into cache-emulated RAM, I
> tested on an intel T2300,
> after CAR setup, I can read/write to the mapped region, however code
> execution seems not working.
> Postcode reveals that the CPU seems to be spinning on the very first
> instruction in the 'RAM' region.
> Anyone could give some hints? thanks.

It is possible and it works. What you might do is dump the contents of
the CAR once you have copied to it and see what is there.


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