Hi, > However, for the piix4 which is the default platform and is desirable > due to driver issues in many cases no simple way to instantiate the > companion setup and have qemu automagically attach the devices > correctly exists.
We havn't added shortcuts like this to qemu for a while. There are a bunch of other new things which don't have a shorthand command line switch too. I suspect -usb2 wouldn't be very welcome @ qemu-devel. You can try sending a patch though, shouldn't be hard, code is there as q35 uses it. There is also the option to stick things into a config file (see docs/q35-chipset.cfg for an example), then do "-readconfig usb2.cfg". > > If the guest is new enough that it has drivers you can also simply use > > xhci. > > What xhci hub is emulated? nec. > Anyway, xhci drivers for Windows are a mess so this is not going to be > an option for a while I guess. Thats why the "if the guest is new enough" above. With windows this works nicely only with win8+ (ships with xhci drivers). For older windows versions it is not really an option, you'd have to hunt down drivers on the internet etc. cheers, Gerd
