On Mon, May 18, 2026 at 12:00:02PM +0100, Peter Maydell wrote: > On Mon, 18 May 2026 at 11:53, Gerd Hoffmann <[email protected]> wrote: > > I fully support that too, recommending xhci since 2018 ;) > > > > https://www.kraxel.org/blog/2018/08/qemu-usb-tips/ > > > > Except for the claim that windows 7 is in widespread use this > > still applies today. > > Is it still the case that the "-usb" QEMU option gives you the > old OHCI/UHCI controller? (My quick look at the source code suggests > it is.) If so, that's an unfortunate default, since it makes it very > easy to pick the non-security-supported bad config by accident.
It was still the case when I stopped maintaining usb and it is unlikely it has changed since. > Could we make "-usb" give the PC machines an XHCI controller for new > machine version types ? Sounds reasonable to me. libvirt has changed defaults years ago. take care, Gerd
