[coreboot] Question about how CoreBoot handles Option ROM

[Jeffrey C. Jacobs]

I was wondering if someone could point me to the right direction in terms of
where in CoreBoot is are the various system Option ROMs copied.  As I
understand it, Option ROMs are generally found by probing the PCI bus and
copied into RAM so that they can be handled by INT13 requests.  So, I'd like
to know what part of the code handles that and also how the memory map of
those copied addresses are laid out.
Thanks in advance,

Jeffrey