Re: "PCI BIOS passed nonexistant PCI bus 0"

Pete Zaitcev (zaitcev@redhat.com)
Mon, 13 Jan 2003 22:58:09 -0500


> PCI BIOS passed nonexistant PCI bus 1

> How can this be? I configured the kernel with:
>
> # CONFIG_PCI_GOBIOS is not set
> CONFIG_PCI_GODIRECT=y
>
> What is this option good for if Linux still listens to what the BIOS says?

How do you think we should go about IRQ routing
without reading BIOS tables? If you have a viable
solution, I'd be happy to listen to it.

Accessing PCI configuration space is trivial. Only two or
three ways actually exist on x86. The IRQ routing is different.
Every little motherboard vendor routes them differently.

-- Pete
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