Min RAM and ROM footprints

[Daniel Waddington]

Hi Christian and Norman
Thanks for the quick responses. So do you think it's fair to say that
realistically 4MB is a probably the smallest you could do anything useful
with. I know useful is hard to define.

Daniel
 On Jan 29, 2014 5:02 AM, "Christian Helmuth" <
christian.helmuth at ...1...> wrote:

> Hello,
>
> On Wed, Jan 29, 2014 at 12:35:55PM +0100, Norman Feske wrote:
> > Apparently, setting RAM0_SIZE to 0x240000 (ca. 2.3 MiB) is enough to run
> > core + init + test-printf on PBX-A9 via base-hw.
>
> I did a quick check for foc_pbxa9 with the attached patch. The
> smallest working amount of RAM was 0x135000 (ca. 1.2 MiB), but this is
> without the RAM used by the Fiasco kernel in the scenario. From the
> Fiasco kernel debugger I got "Used 2445KB out of 16384KB of Kmem" with
> the command 'km'.
>
> Additionally, we have to add the amount of RAM used by ROM modules
> (currently loaded to RAM by the bootloader), which sums up to ca. 2.3
> MiB on foc_pbxa9.
>
> Regards
> --
> Christian Helmuth
> Genode Labs
>
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