On Fri, Aug 20, 2010 at 09:39:10AM -0500, Anthony Liguori wrote: > On 08/20/2010 09:09 AM, Gerd Hoffmann wrote: > >Been there, tried that. It isn't *that* easy. The PCI ID in the > >option rom header doesn't match the PCI ID of the emulated lsi, so > >seabios refuses to load it from the rom bar. > > Heh, I was wondering why it didn't work unless I put rombar=0 :-) > > Is this fixable in a reasonable way or does PCI ID in the option rom > represent a much newer device that would trigger issues with guest > drivers?
The PCI spec requires that the PCI IDs match - this is done so that a single rom can store multiple optionroms. One could place the optionrom in fw_cfg with a "file" name of "pciXXXX,YYYY.rom". SeaBIOS will then deploy that rom for every device that has the given vendor/devid. (It wont require matching PCI IDs ids in the rom.) -Kevin
