[vfio-users] VM loses mouse

[Daimon Wang]

Hi Patrick,    Your qemu log indicate that you're using qxl display card and spice together with  VGA pass-through. And you can see the VM output directly from on one of the HDMI output. Are u sure one of your VGA card is pass-through to the VM and is working? I'm asking because I heard they won't work together.
    Well suppose that do works. Please check if the keyboard is still functional when the mouse die in the VM. Use e.g. the "windows" key or alt+tab for testing. If keyboard is fine, try to find a process named "vdagent.exe", kill it (it'll re-spawn) and see if mouse comeback.
Regards,Daimon 

    On Wednesday, April 19, 2017 8:16 PM, Patrick O'Callaghan <poc at usb.ve> wrote:
 

 On Sat, 2017-04-15 at 06:27 -0700, Jamie Lawrence wrote:
> > On Apr 15, 2017, at 2:52 AM, Patrick O'Callaghan <poc at usb.ve> wrote:
> > 
> > It never happens when using the host, only in the VM. Note that I don't
> > have a KVM switch. It's an HDMI switch that connects the monitor to the
> > two GPUs. The problem corrects itself if I reboot the guest, not the
> > host.
> 
> Ditto - the host is fine; once I return mouse control to the host, it behaves normally.
> 
> In my case a KVM/switch doesn't come in to play; I am using a Displayport KVM, but the mouse devices are not connected to it - they're attached to the host via an external hub. (I'm only using the KVM to switch video cards to one monitor.)
> 
> I will try to make it happen again and look for log messages later today.

It happened again. This is my QEMU log:

2017-04-18 11:33:00.313+0000: starting up libvirt version: 2.2.0, package: 2.fc25 (Fedora Project, 2016-11-14-21:04:29, buildvm-25.phx2.fedoraproject.org), qemu version: 2.7.1(qemu-2.7.1-5.fc25), hostname: Bree
LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-kvm -name guest=NewWin10,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-1-NewWin10/master-key.aes -machine pc-i440fx-2.7,accel=kvm,usb=off,vmport=off -cpu host,hv_time,hv_vendor_id=SomeString,kvm=off -drive file=/usr/share/edk2/ovmf/OVMF_CODE.fd,if=pflash,format=raw,unit=0,readonly=on -drive file=/var/lib/libvirt/qemu/nvram/NewWin10_VARS.fd,if=pflash,format=raw,unit=1 -m 8192 -mem-prealloc -mem-path /dev/hugepages/libvirt/qemu -realtime mlock=off -smp 4,sockets=1,cores=2,threads=2 -uuid 98bd845f-366b-4988-a6c1-c17b69fea84b -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-1-NewWin10/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x9.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x9 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x9.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x9.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive if=none,id=drive-ide0-0-1,readonly=on -device ide-cd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -drive file=/home/poc/Win10/Windows10.raw,format=raw,if=none,id=drive-virtio-disk0,cache=writeback,aio=threads -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=24,id=hostnet0,vhost=on,vhostfd=26 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:1d:55:89,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -spice port=5900,addr=127.0.0.1,disable-ticketing,image-compression=off,seamless-migration=on -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev spicevmc,id=charredir0,name=usbredir -device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=2 -chardev spicevmc,id=charredir1,name=usbredir -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 -device vfio-pci,host=01:00.0,id=hostdev0,bus=pci.0,addr=0x6 -device vfio-pci,host=01:00.1,id=hostdev1,bus=pci.0,addr=0xa -device usb-host,hostbus=1,hostaddr=5,id=hostdev2,bus=usb.0,port=1 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -msg timestamp=on
Domain id=1 is tainted: host-cpu
char device redirected to /dev/pts/6 (label charserial0)
main_channel_link: add main channel client
red_qxl_set_cursor_peer: 
inputs_connect: inputs channel client create
2017-04-18T16:14:08.649575Z qemu-system-x86_64: libusb_release_interface: -4 [NO_DEVICE]

Only the last line looks relevant.

There is nothing in dmesg.

poc

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