I'm sorry. Yeah, this should have been against virt-manager rather than QEMU, unless the virt-manager people were to say it's a limitation of QEMU, which doesn't sound like it's the case based on your response.
On Wed, Aug 12, 2015 at 3:03 AM, Jakob Bohm <jb-gnumli...@wisemo.com> wrote: > On 11/08/2015 00:33, james harvey wrote: > >> Using libvirt 1.2.18 (-1 Arch) and QEMU git-master (2.4.0.r40384.2d69736). >> >> Installed using Q35 chipset. >> >> Using managedsave/start is unusable due to a non-stop repeating >> uhci_hcd error. (Fills tty0 screen every 0.003 kernel seconds with >> errors.) >> >> QEMU won't let me remove the USB controller -- remove is grayed out. >> >> virsh edit allows me to remove them, which lets me use managedsave/start. >> >> QEMU only lets me remove the USB redirection entries, which didn't help. >> >> Last time I checked (has been some time though) qemu > did not have a GUI that can gray out anything. > > There are 2 ways in which libvirt (including virsh) > can add/remove devices from qemu: > > A) By changing the (long) list of devices and other > options on the qemu command line when starting qemu, > this is reflected in the output of the command > > virsh domxml-to-native qemu-argv /path/to/guestconfig.xml > > B) By using the monitor and qml sockets to "hotplug" > devices on a running guest. > > I am quite confident that the usb controller can be > removed by simply omitting it (and all usb devices > needing it) from the qemu command line (method A), > but I don't know if it can be done with method B, > (except that it must be possible if libvirt/virsh > does it without rebooting the guest). > > Note that older versions of libvirt refused to remove > the USB tablet it uses for mouse movements, and thus > the USB controller, which was quite annoying. > > Enjoy > > Jakob > -- > Jakob Bohm, CIO, Partner, WiseMo A/S. https://www.wisemo.com > Transformervej 29, 2860 Søborg, Denmark. Direct +45 31 13 16 10 > This public discussion message is non-binding and may contain errors. > WiseMo - Remote Service Management for PCs, Phones and Embedded > > >
