Bug 2022848

Looking at how the QEMU package is split into components in RHEL AV
and comparing it to Fedora 35[1], we can see that they are quite a
bit different.

  [cs8]# rpm -qa | grep ^qemu | sort -u
  qemu-img-6.0.0-33.el8s.x86_64
  qemu-kvm-6.0.0-33.el8s.x86_64
  qemu-kvm-block-curl-6.0.0-33.el8s.x86_64
  qemu-kvm-block-gluster-6.0.0-33.el8s.x86_64
  qemu-kvm-block-iscsi-6.0.0-33.el8s.x86_64
  qemu-kvm-block-rbd-6.0.0-33.el8s.x86_64
  qemu-kvm-block-ssh-6.0.0-33.el8s.x86_64
  qemu-kvm-common-6.0.0-33.el8s.x86_64
  qemu-kvm-core-6.0.0-33.el8s.x86_64
  qemu-kvm-docs-6.0.0-33.el8s.x86_64
  qemu-kvm-hw-usbredir-6.0.0-33.el8s.x86_64
  qemu-kvm-ui-opengl-6.0.0-33.el8s.x86_64
  qemu-kvm-ui-spice-6.0.0-33.el8s.x86_64

  [f35]# rpm -qa | grep ^qemu | sort -u
  qemu-audio-alsa-6.1.0-10.fc35.x86_64
  qemu-audio-jack-6.1.0-10.fc35.x86_64
  qemu-audio-oss-6.1.0-10.fc35.x86_64
  qemu-audio-pa-6.1.0-10.fc35.x86_64
  qemu-audio-sdl-6.1.0-10.fc35.x86_64
  qemu-audio-spice-6.1.0-10.fc35.x86_64
  qemu-block-curl-6.1.0-10.fc35.x86_64
  qemu-block-dmg-6.1.0-10.fc35.x86_64
  qemu-block-gluster-6.1.0-10.fc35.x86_64
  qemu-block-iscsi-6.1.0-10.fc35.x86_64
  qemu-block-nfs-6.1.0-10.fc35.x86_64
  qemu-block-rbd-6.1.0-10.fc35.x86_64
  qemu-block-ssh-6.1.0-10.fc35.x86_64
  qemu-char-baum-6.1.0-10.fc35.x86_64
  qemu-char-spice-6.1.0-10.fc35.x86_64
  qemu-common-6.1.0-10.fc35.x86_64
  qemu-device-display-qxl-6.1.0-10.fc35.x86_64
  qemu-device-display-vhost-user-gpu-6.1.0-10.fc35.x86_64
  qemu-device-display-virtio-gpu-6.1.0-10.fc35.x86_64
  qemu-device-display-virtio-gpu-gl-6.1.0-10.fc35.x86_64
  qemu-device-display-virtio-gpu-pci-6.1.0-10.fc35.x86_64
  qemu-device-display-virtio-gpu-pci-gl-6.1.0-10.fc35.x86_64
  qemu-device-display-virtio-vga-6.1.0-10.fc35.x86_64
  qemu-device-display-virtio-vga-gl-6.1.0-10.fc35.x86_64
  qemu-device-usb-host-6.1.0-10.fc35.x86_64
  qemu-device-usb-redirect-6.1.0-10.fc35.x86_64
  qemu-device-usb-smartcard-6.1.0-10.fc35.x86_64
  qemu-kvm-6.1.0-10.fc35.x86_64
  qemu-pr-helper-6.1.0-10.fc35.x86_64
  qemu-system-x86-6.1.0-10.fc35.x86_64
  qemu-system-x86-core-6.1.0-10.fc35.x86_64
  qemu-ui-curses-6.1.0-10.fc35.x86_64
  qemu-ui-egl-headless-6.1.0-10.fc35.x86_64
  qemu-ui-gtk-6.1.0-10.fc35.x86_64
  qemu-ui-opengl-6.1.0-10.fc35.x86_64
  qemu-ui-sdl-6.1.0-10.fc35.x86_64
  qemu-ui-spice-app-6.1.0-10.fc35.x86_64
  qemu-ui-spice-core-6.1.0-10.fc35.x86_64

Of course most of the differences can be attributed to Fedora
enabling all possible QEMU features/devices while the RHEL build is
more selective, but there are still a significant number that don't
fall into that category. Here are the ones that I've spotted - there
might be more.


usbredir

Contents are the same, but the subpackage name is completely
different.

  [cs8]# rpm -ql qemu-kvm-hw-usbredir | grep -v build-id
  /usr/lib64/qemu-kvm/hw-usb-redirect.so

  [f35]# rpm -ql qemu-device-usb-redirect | grep -v build-id
  /usr/lib64/qemu/hw-usb-redirect.so

OpenGL

In RHEL, a single subpackage encompasses the contents of two separate
Fedora subpackages.

  [cs8]# rpm -ql qemu-kvm-ui-opengl | grep -v build-id
  /usr/lib64/qemu-kvm/ui-egl-headless.so
  /usr/lib64/qemu-kvm/ui-opengl.so

  [f35]# rpm -ql qemu-ui-opengl | grep -v build-id
  /usr/lib64/qemu/ui-opengl.so
  [f35]# rpm -ql qemu-ui-egl-headless | grep -v build-id
  /usr/lib64/qemu/ui-egl-headless.so

SPICE

Same as OpenGL, but this time the ratio is 1:5.

  [cs8]# rpm -ql qemu-kvm-ui-spice | grep -v build-id
  /usr/lib64/qemu-kvm/audio-spice.so
  /usr/lib64/qemu-kvm/chardev-spice.so
  /usr/lib64/qemu-kvm/hw-display-qxl.so
  /usr/lib64/qemu-kvm/hw-usb-smartcard.so
  /usr/lib64/qemu-kvm/ui-spice-core.so

  [f35]# rpm -ql qemu-audio-spice | grep -v build-id
  /usr/lib64/qemu/audio-spice.so
  [f35]# rpm -ql qemu-char-spice | grep -v build-id
  /usr/lib64/qemu/chardev-spice.so
  [f35]# rpm -ql qemu-device-display-qxl | grep -v build-id
  /usr/lib64/qemu/hw-display-qxl.so
  [f35]# rpm -ql qemu-device-usb-smartcard | grep -v build-id
  /usr/lib64/qemu/hw-usb-smartcard.so
  [f35]# rpm -ql qemu-ui-spice-core | grep -v build-id
  /usr/lib64/qemu/ui-spice-core.so

virtio-gpu

Fedora has two separate subpackages for the PCI and non-PCI parts,
whereas RHEL ships both of them as part of the -core subpackage.
Note that in Fedora the -core subpackage doesn't contain any module.

  [cs8]# rpm -ql qemu-kvm-core | grep -v build-id | grep lib64
  /usr/lib64/qemu-kvm/hw-display-virtio-gpu-pci.so
  /usr/lib64/qemu-kvm/hw-display-virtio-gpu.so

  [f35]# rpm -ql qemu-device-display-virtio-gpu | grep -v build-id
  /usr/lib64/qemu/hw-display-virtio-gpu.so
  [f35]# rpm -ql qemu-device-display-virtio-gpu-pci | grep -v build-id
  /usr/lib64/qemu/hw-display-virtio-gpu-pci.so

virtio-vga

Fedora has a package for it, whereas RHEL ships it as part of the
-common subpackage. Note that in Fedora the -common subpackage
doesn't contain any module.

  [cs8]# rpm -ql qemu-kvm-common | grep -v build-id | grep lib64
  /usr/lib64/qemu-kvm/hw-display-virtio-vga.so

  [f35]# rpm -ql qemu-device-display-virtio-vga | grep -v build-id
  /usr/lib64/qemu/hw-display-virtio-vga.so

pr-helper

Fedora has a package for it, whereas RHEL ships it as part of the
-common subpackage.

  [cs8]# rpm -ql qemu-kvm-common | grep pr-helper
  /usr/bin/qemu-pr-helper
  /usr/lib/systemd/system/qemu-pr-helper.service
  /usr/lib/systemd/system/qemu-pr-helper.socket
  /usr/share/man/man8/qemu-pr-helper.8.gz

  [f35]# rpm -ql qemu-pr-helper | grep -v build-id
  /usr/bin/qemu-pr-helper
  /usr/lib/systemd/system/qemu-pr-helper.service
  /usr/lib/systemd/system/qemu-pr-helper.socket
  /usr/share/man/man8/qemu-pr-helper.8.gz


I believe that these differences in packaging between Fedora and RHEL
constitute an annoyance to users and upstream developers that want to
target both, and that we should address them in RHEL AV 8.6.


Previous discussion: https://bugzilla.redhat.com/show_bug.cgi?id=1950405#c13


[1] I've actually used CentOS Stream 8 with the Advanced
    Virtualization repo enabled for convenience, but the split should
    be the same in RHEL AV.