[vfio-users] Device not tied to a QemuConsole.

[Alex Williamson]

On Sat, 07 Oct 2017 15:38:57 +0300
José Pekkarinen <jose.pekkarinen at canonical.com> wrote:

> On Thursday, 5 October 2017 21:40:14 EEST José Pekkarinen wrote:
> > 	Hi list,
> > 
> > 	I'm currently toying around with vfio mediated devices in qemu, and I'm
> > having troubles defining a display through vnc for the mediated device. The
> > error in question is this:
> > 
> > qemu-system-x86_64: -display vnc=0:1,display=video.1: Failed to start VNC
> > server: Device video.1 (head 0) is not bound to a QemuConsole
> > 
> > 	The qemu parameters are like this:
> > 
> > sudo qemu-system-x86_64 -enable-kvm -cpu host -smp 2,cores=1,threads=2 \
> >         -m 8G -mem-path /mnt/hugepages -vga qxl -display vnc=0:0 -display
> > vnc=0:1,display=video.1 \
> >         -device
> > vfio-pci,id=video.1,sysfsdev=/sys/class/mdev_bus/0000:00:02.0/
> > $uuid,bus=pci.0,addr=06.0,rombar=0 \
> >         -netdev user,id=user.0,smb=/home/pekkari/share -device
> > e1000,netdev=user.0 \
> >         -device ich9-usb-uhci3,id=uhci -device usb-ehci,id=ehci -device nec-
> > usb-xhci,id=xhci \
> >         -device virtio-serial -device usb-tablet -device ich9-intel-hda -
> > device hda-duplex \
> >         -object input-linux,id=kbd,evdev=/dev/input/by-path/platform-i8042-
> > serio-0-event-kbd \
> >         -chardev
> > socket,path=/tmp/virtio-serial.sock,server,nowait,id=serial- log \
> >         -device virtserialport,chardev=serial-log,name=ant.port.0 \
> >         -cdrom /home/pekkari/machines/win8/virtio-win-0.1.141.iso \
> >         -drive file=win8.img,format=raw,cache=none,aio=native,if=virtio
> > 
> > 	This is piece of a script that sets uuid to a value, and the vm is a
> > windows 8.1 vm with RH qxl and intel qxl device driver.
> > 
> > 	Previously I tried using spice, replacing all -displays with the
> > following:
> > 
> > 	-spice port=5900,disable-ticketing
> > 
> > 	The result was that just one display turn up, and intel was tied to a non
> > pnp display that I wouldn't see. Switching the main display to it make the
> > vm almost unusable, as everything renders in the invisible display.
> > 
> > 	Thanks in advance for any suggestions.
> > 
> > 	José.  
> 
> 	Adding vfio-users mailing list in case anyone knows what I may be doing 
> wrong.

You need a time machine because the thing you're trying to do hasn't
been implemented yet, it's under discussion upstream.  Thanks,

Alex