Windows guest fails to start on 6.1.0 - opengl is not available

Host environment

• Operating system: Arch Linux
• OS/kernel version: Linux T14s 5.15.7-arch1-1 #1 SMP PREEMPT Wed, 08 Dec 2021 14:33:16 +0000 x86_64 GNU/Linux
• Architecture: x86
• QEMU flavor: qemu-system-x86_64
• QEMU version: 6.1.0,
• QEMU command line:

LC_ALL=C \
PATH=/usr/local/sbin:/usr/local/bin:/usr/bin \
HOME=/var/lib/libvirt/qemu/domain-1-win10 \
XDG_DATA_HOME=/var/lib/libvirt/qemu/domain-1-win10/.local/share \
XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain-1-win10/.cache \
XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain-1-win10/.config \
/usr/bin/qemu-system-x86_64 \
-name guest=win10,debug-threads=on \
-S \
-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain-1-win10/master-key.aes"}' \
-machine pc-q35-6.0,usb=off,vmport=off,dump-guest-core=off,memory-backend=pc.ram \
-accel kvm \
-cpu EPYC-Rome,x2apic=on,tsc-deadline=on,hypervisor=on,tsc-adjust=on,spec-ctrl=on,stibp=on,arch-capabilities=on,ssbd=on,xsaves=on,cmp-legacy=on,ibrs=on,amd-ssbd=on,virt-ssbd=on,svme-addr-chk=on,rdctl-no=on,skip-l1dfl-vmentry=on,mds-no=on,pschange-mc-no=on,hv-time=on,hv-relaxed=on,hv-vapic=on,hv-spinlocks=0x1fff \
-m 8192 \
-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":8589934592}' \
-overcommit mem-lock=off \
-smp 6,sockets=6,cores=1,threads=1 \
-uuid 603f7315-d0fb-4e78-bcd0-5a54b8e15b3a \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=32,server=on,wait=off \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=localtime,driftfix=slew \
-global kvm-pit.lost_tick_policy=delay \
-no-hpet \
-no-shutdown \
-global ICH9-LPC.disable_s3=1 \
-global ICH9-LPC.disable_s4=1 \
-boot strict=on \
-device '{"driver":"pcie-root-port","port":16,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x2"}' \
-device '{"driver":"pcie-root-port","port":17,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x2.0x1"}' \
-device '{"driver":"pcie-root-port","port":18,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x2.0x2"}' \
-device '{"driver":"pcie-root-port","port":19,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x2.0x3"}' \
-device '{"driver":"pcie-root-port","port":20,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x2.0x4"}' \
-device '{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pci.2","addr":"0x0"}' \
-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.3","addr":"0x0"}' \
-blockdev '{"driver":"host_device","filename":"/dev/main/win10","aio":"native","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"raw","file":"libvirt-2-storage"}' \
-device '{"driver":"ide-hd","bus":"ide.0","drive":"libvirt-2-format","id":"sata0-0-0","bootindex":1,"write-cache":"on"}' \
-device '{"driver":"ide-cd","bus":"ide.1","id":"sata0-0-1"}' \
-netdev tap,fd=34,id=hostnet0,vhost=on,vhostfd=35 \
-device '{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:5e:88:10","bus":"pci.1","addr":"0x0"}' \
-chardev pty,id=charserial0 \
-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0"}' \
-chardev spicevmc,id=charchannel0,name=vdagent \
-device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"com.redhat.spice.0"}' \
-device '{"driver":"usb-tablet","id":"input0","bus":"usb.0","port":"1"}' \
-audiodev '{"id":"audio1","driver":"spice"}' \
-spice port=5900,addr=127.0.0.1,disable-ticketing=on,image-compression=off,seamless-migration=on \
-device '{"driver":"virtio-vga-gl","id":"video0","max_outputs":1,"bus":"pcie.0","addr":"0x1"}' \
-device '{"driver":"ich9-intel-hda","id":"sound0","bus":"pcie.0","addr":"0x1b"}' \
-device '{"driver":"hda-duplex","id":"sound0-codec0","bus":"sound0.0","cad":0,"audiodev":"audio1"}' \
-chardev spicevmc,id=charredir0,name=usbredir \
-device '{"driver":"usb-redir","chardev":"charredir0","id":"redir0","bus":"usb.0","port":"2"}' \
-chardev spicevmc,id=charredir1,name=usbredir \
-device '{"driver":"usb-redir","chardev":"charredir1","id":"redir1","bus":"usb.0","port":"3"}' \
-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.4","addr":"0x0"}' \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on

(Sorry for the full command. I'm not familiar enough with qemu to shorten this)

Emulated/Virtualized environment

• Operating system: Windows 10
• OS/kernel version: -
• Architecture: x86

Description of problem

I've created a Windows 10 guest with virt-manager. The VM started successfully with qemu 6.0.0-3. After upgrading to 6.1.0 it fails with the following error:

2021-12-14T19:11:52.884272Z qemu-system-x86_64: warning: This feature depends on other features that were not requested: CPUID.8000000AH:EDX.svme-addr-chk [bit 28]
2021-12-14T19:11:52.885199Z qemu-system-x86_64: warning: This feature depends on other features that were not requested: CPUID.8000000AH:EDX.svme-addr-chk [bit 28]
2021-12-14T19:11:52.885852Z qemu-system-x86_64: warning: This feature depends on other features that were not requested: CPUID.8000000AH:EDX.svme-addr-chk [bit 28]
2021-12-14T19:11:52.886485Z qemu-system-x86_64: warning: This feature depends on other features that were not requested: CPUID.8000000AH:EDX.svme-addr-chk [bit 28]
2021-12-14T19:11:52.887098Z qemu-system-x86_64: warning: This feature depends on other features that were not requested: CPUID.8000000AH:EDX.svme-addr-chk [bit 28]
2021-12-14T19:11:52.887773Z qemu-system-x86_64: warning: This feature depends on other features that were not requested: CPUID.8000000AH:EDX.svme-addr-chk [bit 28]
2021-12-14T19:11:52.912523Z qemu-system-x86_64: -device virtio-vga-gl,id=video0,max_outputs=1,bus=pcie.0,addr=0x1: opengl is not available
2021-12-14 19:11:53.109+0000: shutting down, reason=failed

Upgrading to 6.2.0.rc4 did not fix it. Downgrading to 6.0.0-3 made it work again. This makes it clear to me that the bug was introduce in qemu > 6.0.0 and seems to be not fix by now.

I was able to start the guest on 6.1.0 by disabling 3D acceleration.

Steps to reproduce

1. Create Windows 10 guest VM
2. Start with qemu 6.0.0 -> Works
3. Start with qemu 6.1.0 -> Broken

Additional information

People on Reddit mention the same characteristic of this bug -> https://www.reddit.com/r/Fedora/comments/qqw3sq/qemu_video_virtio_opengl_not_available_after/