Re : [PATCH 0/8] RFC: OFMEM cleanup/memory reduction patch

[Olivier DANET]

> The problem is currently OpenBIOS won't work on a bare metal, since > it's tightly coupled with qemu. So, PROM size at this point is a > purely academical question. I'm involved in a project where OpenBIOS for Sparc32 is actually used on bare metal (in a FPGA). OpenBIOS is installed in a 16MB NOR FLASH. There are a few QEMU dependencies and some small issues which don't appear in QEMU (for example, the MMU activation sequence does not work IRL, there is a small bug in wuf.S ...). Regards, and thank you all for your hard work !  Olivier

[Blue Swirl]

On Fri, Apr 13, 2012 at 20:24, Olivier DANET  wrote:
> > The problem is currently OpenBIOS won't work on a bare metal, since
> > it's tightly coupled with qemu. So, PROM size at this point is a
>
> purely academical question.
>
> I'm involved in a project where OpenBIOS for Sparc32 is actually used on
> bare metal (in a FPGA).
> OpenBIOS is installed in a 16MB NOR FLASH.

Interesting, can you tell more about this project? Did you also modify
QEMU to emulate the HW setup?
> There are a few QEMU dependencies and some small issues which don't appear
> in QEMU (for example,
>  the MMU activation sequence does not work IRL, there is a small bug in
> wuf.S ...).

We should try to isolate the dependencies for QEMU, even if QEMU is
probably the most interesting use case for OpenBIOS these days. Could
you tell more about those bugs and even better, publish your changes?
> Regards, and thank you all for your hard work !
>
> Olivier