[SeaBIOS] Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?)

Anthony Liguori anthony at codemonkey.ws
Wed Dec 16 02:32:18 CET 2009

Chris Wright wrote:
> * Anthony Liguori (anthony at codemonkey.ws) wrote:
>> BTW, I'm pretty sure this style of option rom loading (from a PCI
>> device) is going to be required for device passthrough if we want to
>> support running those roms in the guests.
> I think so too.
>> In fact, it should Just
>> Work with my patches !CONFIG_OPTIONROMS_DEPLOYED in SeaBIOS.
> What would be the magic to boot from that ROM?

Setup device assignment, add -boot menu=on with my patches, and hit F12 
when prompted.  In theory, you should see an entry for the device.

If not, the output with DEBUG_BIOS enabled in hw/pc.c would be very 


Anthony Liguori

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