sys-kernel: enable kernel virtio vnc output

[ader1990]

Fix for: flatcar/Flatcar#1553

TBD: check whether all the changes are actually required and the initrd / kernel size increase.

[github-actions]

Test report for 4117.0.0+nightly-20241008-2100 / amd64 arm64

Platforms tested : qemu_uefi-amd64 qemu_update-amd64 qemu_uefi-arm64 qemu_update-arm64

bpf.execsnoop 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

bpf.local-gadget 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.basic 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.cgroupv1 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.cloudinit.basic 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.cloudinit.multipart-mime 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.cloudinit.script 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.disk.raid0.data 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (2) ❌ Failed: qemu_uefi-arm64 (1)

                Diagnostic output for qemu_uefi-arm64, run 1

    L1: "  "
    L2: " Error: _harness.go:602: Found kernel panic (Oops: Fatal exception ) on machine 65beeed3-895c-4b3f-b312-ad95025ec0c7 console"
    L3: "harness.go:602: Found kernel oops on machine 65beeed3-895c-4b3f-b312-ad95025ec0c7 console_"
    L4: " "

cl.disk.raid0.root 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.disk.raid1.data 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.disk.raid1.root 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.etcd-member.discovery 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.etcd-member.etcdctlv3 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.etcd-member.v2-backup-restore 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.filesystem 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.flannel.udp 🟢 Succeeded: qemu_uefi-amd64 (1)

cl.flannel.vxlan 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.instantiated.enable-unit 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.kargs 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.luks 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.oem.indirect 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.oem.indirect.new 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.oem.regular 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.oem.regular.new 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.oem.reuse 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (2) ❌ Failed: qemu_uefi-arm64 (1)

                Diagnostic output for qemu_uefi-arm64, run 1

    L1: "  "
    L2: " Error: _oem.go:199: Couldn_t reboot machine: machine __662215a4-77d2-4d3f-9aeb-ac5cff2c7f2b__ failed basic checks: some systemd units failed:"
    L3: "??? ldconfig.service loaded failed failed Rebuild Dynamic Linker Cache"
    L4: "status: "
    L5: "journal:-- No entries --_"
    L6: " "

cl.ignition.oem.wipe 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.partition_on_boot_disk 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.symlink 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.translation 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v1.btrfsroot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v1.ext4root 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v1.groups 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v1.once 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v1.sethostname 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v1.users 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v1.xfsroot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v2.btrfsroot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v2.ext4root 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v2.users 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v2.xfsroot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v2_1.ext4checkexisting 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v2_1.swap 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.ignition.v2_1.vfat 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.install.cloudinit 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.internet 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.locksmith.cluster 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.misc.falco 🟢 Succeeded: qemu_uefi-amd64 (1)

cl.network.initramfs.second-boot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.network.listeners 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.network.wireguard 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.omaha.ping 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.osreset.ignition-rerun 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.overlay.cleanup 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.swap_activation 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.sysext.boot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.sysext.fallbackdownload # SKIP 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.tang.nonroot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.tang.root 🟢 Succeeded: qemu_uefi-amd64 (3); qemu_uefi-arm64 (1) ❌ Failed: qemu_uefi-amd64 (1, 2)

                Diagnostic output for qemu_uefi-amd64, run 2

    L1: " Error: _tang.go:149: Started tang on 10.0.0.1:42549"
    L2: "tang.go:189: could not reboot machine: machine __b4e38478-060e-44e0-8867-13a2ca505c7e__ failed basic checks: some systemd units failed:"
    L3: "??? ldconfig.service loaded failed failed Rebuild Dynamic Linker Cache"
    L4: "status: "
    L5: "journal:-- No entries --_"
    L6: " "

                Diagnostic output for qemu_uefi-amd64, run 1

    L1: " Error: _tang.go:149: Started tang on 10.0.0.1:35357"
    L2: "tang.go:189: could not reboot machine: machine __902b13d6-050e-45e0-8062-5e492c58a1c7__ failed basic checks: some systemd units failed:"
    L3: "??? ldconfig.service loaded failed failed Rebuild Dynamic Linker Cache"
    L4: "status: "
    L5: "journal:-- No entries --_"
    L6: " "
    L7: "  "

cl.toolbox.dnf-install 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.tpm.eventlog 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.tpm.nonroot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.tpm.root 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.tpm.root-cryptenroll 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.tpm.root-cryptenroll-pcr-noupdate 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.tpm.root-cryptenroll-pcr-withupdate 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (2) ❌ Failed: qemu_uefi-arm64 (1)

                Diagnostic output for qemu_uefi-arm64, run 1

    L1: "  "
    L2: " Error: _tpm.go:336: machine __5eaf28da-14e3-4341-a2fe-f4a725188ef7__ failed basic checks: some systemd units failed:"
    L3: "??? ldconfig.service loaded failed failed Rebuild Dynamic Linker Cache"
    L4: "status: "
    L5: "journal:-- No entries --_"
    L6: " "

cl.update.badverity 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.update.grubnop 🟢 Succeeded: qemu_uefi-amd64 (1)

cl.update.payload 🟢 Succeeded: qemu_update-amd64 (1); qemu_update-arm64 (1)

cl.update.reboot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.users.shells 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

cl.verity 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.auth.verify 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.ignition.groups 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.ignition.once 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.ignition.resource.local 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.ignition.resource.remote 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.ignition.resource.s3.versioned 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.ignition.security.tls 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.ignition.sethostname 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.ignition.systemd.enable-service 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.locksmith.reboot 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.locksmith.tls 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.selinux.boolean 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.selinux.enforce 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (2) ❌ Failed: qemu_uefi-arm64 (1)

                Diagnostic output for qemu_uefi-arm64, run 1

    L1: "  "
    L2: " Error: _selinux.go:115: failed to reboot machine: machine __a04e54a0-8124-4516-b249-a60ec9d911f6__ failed basic checks: some systemd units failed:"
    L3: "??? ldconfig.service loaded failed failed Rebuild Dynamic Linker Cache"
    L4: "status: "
    L5: "journal:-- No entries --_"
    L6: " "

coreos.tls.fetch-urls 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

coreos.update.badusr 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

devcontainer.docker 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

devcontainer.systemd-nspawn 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

docker.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

docker.btrfs-storage 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

docker.containerd-restart 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

docker.enable-service.sysext 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

docker.lib-coreos-dockerd-compat 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

docker.network-openbsd-nc 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

docker.selinux 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

docker.userns 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

extra-test.[first_dual].cl.update.docker-btrfs-compat 🟢 Succeeded: qemu_update-amd64 (1); qemu_update-arm64 (1)

extra-test.[first_dual].cl.update.payload 🟢 Succeeded: qemu_update-amd64 (1); qemu_update-arm64 (1)

kubeadm.v1.29.2.calico.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.29.2.calico.cgroupv1.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.29.2.cilium.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.29.2.cilium.cgroupv1.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.29.2.flannel.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.29.2.flannel.cgroupv1.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.30.1.calico.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.30.1.cilium.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.30.1.flannel.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.31.0.calico.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.31.0.cilium.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

kubeadm.v1.31.0.flannel.base 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

linux.nfs.v3 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

linux.nfs.v4 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

linux.ntp 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

misc.fips 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

packages 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

sysext.custom-docker.sysext 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

sysext.custom-oem 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

sysext.disable-containerd 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

sysext.disable-docker 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

sysext.simple 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

systemd.journal.remote 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

systemd.journal.user 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

systemd.sysusers.gshadow 🟢 Succeeded: qemu_uefi-amd64 (1); qemu_uefi-arm64 (1)

[chewi]

Not that it's a bad idea, but why do you need SIMPLEDRM? I found that the existing kernel works with QEMU's -display virtio-gpu-pci, but you just don't see anything between GRUB and pivot root, presumably because the module is not in the initrd.

[chewi]

I also wonder why CONFIG_EFI_FB isn't enough on arm64. That's what amd64 normally uses given that we don't pass -device virtio-vga there.

[ader1990]

I also wonder why CONFIG_EFI_FB isn't enough on arm64. That's what amd64 normally uses given that we don't pass -device virtio-vga there.

made some tests and verified the minimal patch, and it seems that DRM and VIRTIO_GPU is needed at the same time (makes sense as they are in the same config tree).