[Bug 1926952] Re: SPICE support broken with 6.0

[Firecode95]

After launching qemu I have qemu display from intel gpu(gvt-g), terminal
output of launched script. After that launching in terminal separate
instance remote-viewer for spice to passthru usb devices - spice dislay
is blank, that was also in 5.x versions, but just now to get spice
running I need to patch check to always return true. As I understood I
have egl-headless window as there is fully aclerated guest video output:

Full comand that I am running is as follow:

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
cp /home/firecode95/.config/pulse/cookie /root/.config/pulse/cookie
/usr/bin/qemu-system-x86_64 \
-name guest=windows10 \
-machine q35,accel=kvm,vmport=off,kernel_irqchip=on \
-cpu 
host,hv_time,kvm=off,hv-relaxed,hv-vapic,kvm-asyncpf-int,topoext,host-cache-info=on,check,hv_stimer,hv_synic,hv_vpindex,-hypervisor,hv_spinlocks=0x1fff,hv_vapic
 \
-enable-kvm \
-drive if=pflash,format=raw,readonly=on,file=$DIR/OVMF_CODE.fd \
-drive if=pflash,format=raw,file=$DIR/OVMF_VARS.fd \
-smp 12,sockets=1,dies=1,cores=6,threads=2 \
-mem-path /dev/hugepages \
-m 8G \
-uuid e7d44285-507b-48da-bfe2-2eba415016bd \
-no-user-config \
-nodefaults \
-no-hpet \
-rtc base=localtime \
-global PIIX4_PM.disable_s3=0 \
-global ICH9-LPC.disable_s3=1 \
-global ICH9-LPC.disable_s4=1 \
-global isa-debugcon.iobase=0x402 \
-debugcon file:/tmp/windows_10.ovmf.log \
-monitor stdio \
-boot menu=on,strict=on \
-device 
pcie-root-port,port=0x0,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 
\
-device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
-device pcie-root-port,port=0xa,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
-device pcie-root-port,port=0xb,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
-device pcie-root-port,port=0xc,chassis=5,id=pci.5,bus=pcie.0,addr=0x1.0x4 \
-device pcie-root-port,port=0xd,chassis=6,id=pci.6,bus=pcie.0,addr=0x1.0x5 \
-device i82801b11-bridge,id=pci.7,bus=pcie.0,addr=0x1e \
-device pci-bridge,chassis_nr=8,id=pci.8,bus=pci.7,addr=0x0 \
-device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
-device 
ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,addr=0x1d
 \
-device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \
-device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \
-device virtio-serial-pci,id=virtio-serial0,bus=pci.3,addr=0x0 \
-object iothread,id=iothread0 \
-device 
virtio-scsi-pci,iothread=iothread0,num_queues=8,id=scsi0,bus=pcie.0,addr=0x3 \
-drive file=$DIR/virtio-win-0.1.185.iso,media=cdrom,bus=2 \
-drive 
if=none,id=hd1,file=$DIR/$1.qcow2,format=qcow2,cache.direct=on,discard=unmap,aio=threads
 \
-device scsi-hd,drive=hd1 \
-object 
input-linux,id=kbd1,evdev=/dev/input/by-path/platform-i8042-serio-0-event-kbd,grab_all=on,repeat=on
 \
-acpitable file=$DIR/SSDT1.dat \
-msg timestamp=on \
-netdev 
type=tap,id=net0,ifname=tap1,script=$DIR/tap_ifup,downscript=$DIR/tap_ifdown,vhost=on
 \
-device virtio-net-pci,netdev=net0,mac=52:54:BE:EF:A1:67,bus=pci.5,addr=0x0 \
-spice port=5902,addr=127.0.0.1,disable-ticketing=on \
-device 
virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0
 \
-display gtk,gl=on \
-device 
vfio-pci,id=hostdev2,driver=vfio-pci-nohotplug,romfile=/sys/devices/pci0000:00/0000:00:02.0/gvt_firmware,sysfsdev=/sys/bus/mdev/devices/1ae40c36-b180-4af0-8fab-c27de21f597d,x-igd-opregion=on,ramfb=on,display=on,xres=1920,yres=1080,bus=pcie.0,multifunction=on,addr=0x2
 \
-device 
vfio-pci,host=0000:01:00.0,id=hostdev0,bus=pci.1,multifunction=on,addr=0x0,x-pci-sub-vendor-id=0x17aa,x-pci-sub-device-id=0x39fd
 \
-device vfio-pci,host=0000:01:00.1,id=hostdev1,bus=pci.1,addr=0x0.0x1 \
-chardev pty,id=charserial0 \
-device isa-serial,chardev=charserial0,id=serial0 \
-chardev spicevmc,id=charchannel0,name=vdagent \
-chardev spicevmc,id=charredir0,name=usbredir \
-device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=1 \
-chardev spicevmc,id=charredir1,name=usbredir \
-device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=2 \
-chardev spicevmc,id=charredir2,name=usbredir \
-device usb-redir,chardev=charredir2,id=redir2,bus=usb.0,port=3 \
-device ich9-intel-hda \
-device hda-micro,audiodev=hda \
-audiodev pa,id=hda,server=/run/user/1000/pulse/native \
-device usb-host,hostbus=1,hostport=12

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1926952

Title:
  SPICE support broken with 6.0

Status in QEMU:
  New

Bug description:
  Using latest relase 6.0.0 while using Intel GVT-G DMA-BUF and SPICE
  for usb redirection Qemu won't start:

  qemu-system-x86_64: The console requires display DMABUF support.

  However just patching ui/console.c:

  if (flags & GRAPHIC_FLAGS_DMABUF &&
          !displaychangelistener_has_dmabuf(dcl)) {
          error_setg(errp, "The console requires display DMABUF support.");
          return false;
  }

  to always return true for dmabuf part works just fine:

  if (flags & GRAPHIC_FLAGS_DMABUF &&
          !displaychangelistener_has_dmabuf(dcl)) {
          error_setg(errp, "The console requires display DMABUF support.");
          return true;
  }

  This behavior wasn't in qemu 5.x version.

  To reproduce this bug need to use:

  /usr/bin/qemu-system-x86_64 \
  -machine q35 \
  -enable-kvm \
  -no-user-config \
  -nodefaults \
  -no-hpet \
  -display gtk,gl=on \
  -device 
pcie-root-port,port=0x0,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 
\
  -device 
vfio-pci,id=hostdev2,driver=vfio-pci-nohotplug,romfile=/sys/devices/pci0000:00/0000:00:02.0/gvt_firmware,sysfsdev=/sys/bus/mdev/devices/1ae40c36-b180-4af0-8fab-c27de21f597d,x-igd-opregion=on,ramfb=on,display=on,xres=1920,yres=1080,bus=pcie.0,multifunction=on,addr=0x2
 \
  -spice port=5900,addr=127.0.0.1,disable-ticketing=on

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1926952/+subscriptions