[coreboot] cbfs XIP patch

Myles Watson mylesgw at gmail.com
Tue May 5 14:29:56 CEST 2009



> -----Original Message-----
> From: ron minnich [mailto:rminnich at gmail.com]
> On Mon, May 4, 2009 at 8:55 PM, Myles Watson <mylesgw at gmail.com> wrote:
> >
> >> Attached. This patch lets us create XIP stages for cbfs.
> >
> > I'd like to see the picture of what you're imagining here.  I thought
> CBFS
> > was designed to grow in only one direction.  Are you going to have to
> add
> > components in a certain order to make this work?  I don't see where
> you're
> > padding or inserting blank areas.
> 
> no, cbfs files can be sparse. There is nothing in the design that
> requires that all entries be contiguous. In fact, given that remove
> exists,
> cbfs has to allow holes.

Someone needs to fix remove then.  Right now it moves all entries after it
and zeroes the new space.  I guess most of my confusion came from the
implementation/design gap.

Thanks,
Myles





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