[coreboot] Fun ugliness

Myles Watson mylesgw at gmail.com
Thu Jun 25 05:31:17 CEST 2009

> On 24.06.2009 23:46, Myles Watson wrote:
> > Does this make sense?
> >
> > Since CAR isn't backed by actual RAM, if I do a ram test of any
> reasonable
> > size it evicts my stack and I can't continue.
> >
> Correct if the RAM you're testing is marked as cacheable. If that RAM
> area is not marked as cacheable, there should be no problem. Then again,
> cache aliasing may ruin this approach.

Yes.  Because I was accessing my FPGA I marked it as cacheable to change the
size of the reads.  I didn't think about the side effects enough.  I'll just
have to be careful.  

movnti is the right idea for writes.


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