[coreboot] [PATCH] Raw payload extraction support in cbfstool

Aurélien footplus at gmail.com
Tue Sep 28 22:16:50 CEST 2010

On Tue, Sep 28, 2010 at 9:55 PM, Peter Stuge <peter at stuge.se> wrote:

> Aurélien wrote:
> > > > I tried to make a patch which reads from /dev/mem directly in 2 ways:
> > > >  - mmap()ing /dev/mem, but it seemed that it would be too specific a
> > > > modification to be accepted.
> > >
> > > See http://stuge.se/physrd.c for a fairly generic tool to do this.
> >
> > You're right, splitting the feature in two tools seems much more
> > correct. This way we can extract the ROM image, then extract the
> > specific payload.
> Well, for that purpose it's much better to simply use flashrom.
Probably, but flashrom takes slighly more time due to various calibration
routines (I could not find a way to disable those, but I didn't try very
hard), and is less integrable that just reading like this. I don't need much
portability between mainboards anyways.

In the general case however, you are right, the flashrom method seems much
more robust.

Aurélien Guillaume
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