[coreboot] SimNOW VGA int 1a

[Myles Watson]

On Thu, Oct 16, 2008 at 1:25 PM, ron minnich <rminnich at gmail.com> wrote:

> On Thu, Oct 16, 2008 at 12:19 PM, Marc Jones <marc.jones at amd.com> wrote:
>
> > AH! I see. We shouldn't be running out of the ROM. That will be slow. We
> > should copy the VGA BIOS to real memory and run it there.
> >
> > Why are you doing ROM init in stage0? I thought this was well into
> stage2.
> >
>
> So, safety tip: we can't call ANY ROM in stage2 when we're running
> doing ROM init.
>
> And I just realized the problem: we're calling printk and printk is in ROM.
>
> no printks allowed in pcibios.c unless we move printk to RAM, i.e.
> compile printk into stage2.
>
> What a revolting development this is! Our beautiful "common code in
> ROM" idea is going down in flames.
>

Can we make it cached?

Myles
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