On Sun, Jun 14, 2015 at 08:06:22PM +0200, Michael S. Tsirkin wrote: > To summarise, you feel that modifying bus id without reordering > bus ids between roots is likely, modifications that would > cause reordering are unlikely, thus counting bus ids > in order gives a stable index. Is that right?
Yes. > To be on the safe side, it would be nice to have bios skip some > fields/properties when parsing paths, so that if we want to use another > id in the future, we can supply both id types. I haven't looked at the > parsing code - maybe it does this already? SeaBIOS already does that. (SeaBIOS doesn't parse the bootorder file - it generates a "glob" like pattern for each device and then sees if that pattern matches a line in the bootorder file.) Also, I don't have a strong objection to Laszlo's SeaBIOS patch (the one that does the runningOnQEMU() check). (I still think it's quirky to use bus-id in the file, but it's not a show stopper if it's just for QEMU.) -Kevin
