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Re: Multifunction Add-In Cards and PCI BIOS Enumeration



Steve Blightman wrote:
> I've seen this behavior before - if the BIOS sees the multi-function bit for the
> first device, ii checks all of the other 7 possible devices.  If the hardware
> responds with anything other than Master Abort, the BIOS assumes these devices
> exist.

It's probably enough to return FF's, maybe even just in the Vendor and
Device ID registers. I believe that's all the PCI spec requires, although
I'm going from memory.

-- 
                                            _______
Paul C. Miranda (paul.miranda@amd.com)      \ ___  |
"Failure is not an option!" - Gene Kranz    /|   | |
(Flight Director: Gemini, Apollo missions) | |___| |
#include <std.disclaimer>           FNORD  |____/ \|