Lennart Augustsson <augustss@cs.chalmers.se> writes:

> When I claimed that the OS was PnP aware then the PCI based ethernet
> card stopped working because the PCI attachment code said it couldn't
> map its I/O registers.  Why?

Because the BIOS didn't configure the card.

> Do we depend on BIOS to set up the PCI cards?  Why?

Because according to the PCI spec, that's the BIOS's job.  The firmware
is supposed to configure PCI cards, not the OS itself.

--Michael