"Kevin O'Connor" firstname.lastname@example.org writes:
On Thu, Aug 14, 2014 at 10:18:34PM +0200, Markus Armbruster wrote:
We identify devices by their Open Firmware device paths. The path component for the logical unit on a bus is incorrect: bootprio_find_pci_device() formats target (a.k.a. SCSI ID) and lun in decimal, while QEMU uses hexadecimal. Bootorder list entries with target, lun > 9 aren't found (lucky case), or attributed to the wrong logical unit (unlucky case).
The relevant spec[*] agrees with QEMU (and OVMF, for that matter). Change %d to %x.
[*] Open Firmware Recommended Practice: SCSI-3 Parallel Interface, Version 1, section 3.1 Physical Address Formats and Representations http://www.openfirmware.org/1275/practice/spi/spi1_0.ps
Thanks. The patch looks okay to me. But, does bootprio_find_usb() also need to change?
You're right, there's a LUN hiding in that path. I'll send v3.
Aside: the USB port number is also inconsistent with QEMU. but in that case, SeaBIOS is correct and QEMU is wrong. I'm going to fix it.
I also wonder if the ":rom%d" stuff in bootprio_find_*_rom() should also be made hex just for consistency (though it seems unlikely a single rom would ever have more than 10 drives on it).
I don't know. QEMU never generates a ":NUMBER" suffix, and I haven't found a specification for this device path.