Hi, > > drive file=/dev/sg2,if=virtio -cdrom /dvdbuffer/pseudo_drive > > Actually everything works like a charm now. :))
> Cool. So you might have unveiled some kernel bugs too (host crashes are > never desirable!) The USB drive is back at the test machine. I'm running the planned BD-RE tests on the host system to ensure that they work properly without qemu inbetween. Next i will try with if=virtio. Some questions: ----------------------------------------------------------------------- In a thread on linux-hotplug, /dev/sg* is declared to be deprecated in favor of /dev/bsg/* and /dev/sr*. Will this become a problem ? ----------------------------------------------------------------------- I did not succeed with googling for a way to get a block device running on top of file=/dev/sg*,if=virtio. Is this possible at all ? If so, can you give me instructions ? (It would be the cream cap on the cake.) ----------------------------------------------------------------------- The word "passthrough" does not show up in the context of drive emulation in any documentation inside the git clone. I only see statements about: "passthrough" security model. The word "virtio" is mentioned more often, but without much explanation of -drive use cases and pitfalls. (Only docs/qdev-device-use.txt has some more detailed information.) Is there an external documentation emerging ? I would like to read it and contribute my experiences. ----------------------------------------------------------------------- Have a nice day :) Thomas