The first part of the series is a straightforward replacement of
'-no-acpi' by '-machine acpi=on/off' based on configuration.

'-no-acpi' was recently deprecated by qemu thus we must adapt.

The second part of this series fixes the use of ACPI (or lack thereof)
for ARM machine types which don't support ACPI. We'll break such
commandline by adding '-no-acpi' due to historical baggage.

The second part is RFC as it's based on a qemu patch I'll be posting
along this series. This posting will also illustrate to qemu devs how
libvirt itends to use the added information.

I'll post the link to the qemu patch once I submit it.

Peter Krempa (7):
  qemu: capabilities: Introduce QEMU_CAPS_MACHINE_ACPI
  qemu: Use '-machine acpi=on/off' instead of deprecated '-no-acpi'
  qemu: capabilities: Refactor XML parsing in virQEMUCapsLoadMachines

   RFC BELOW:

  qemu: capabilities: Extract whether machine type supports ACPI
  qemu: capabilities: Introduce virQEMUCapsMachineSupportsACPI
  XXX: tests: qemucapabilitiesdata: Regenerate with support for 'acpi'
    in 'query-machines'
  qemu: command: Don't format '-machine acpi=off' for machine types not
    supporting ACPI

 src/qemu/qemu_capabilities.c                  |  89 ++--
 src/qemu/qemu_capabilities.h                  |   4 +
 src/qemu/qemu_capspriv.h                      |   3 +-
 src/qemu/qemu_command.c                       |  51 ++
 src/qemu/qemu_monitor.h                       |   1 +
 src/qemu/qemu_monitor_json.c                  |  12 +
 .../caps_4.2.0.x86_64.xml                     |   2 +-
 .../caps_5.0.0.x86_64.xml                     |   2 +-
 .../caps_5.1.0.x86_64.xml                     |   2 +-
 .../caps_5.2.0.x86_64.xml                     |   2 +-
 .../caps_6.0.0.x86_64.xml                     |   2 +-
 .../caps_6.1.0.x86_64.xml                     |   2 +-
 .../caps_6.2.0.aarch64.xml                    |   2 +-
 .../qemucapabilitiesdata/caps_6.2.0.ppc64.xml |   1 +
 .../caps_6.2.0.x86_64.xml                     |   2 +-
 .../caps_7.0.0.aarch64.xml                    |   2 +-
 .../qemucapabilitiesdata/caps_7.0.0.ppc64.xml |   1 +
 .../caps_7.0.0.x86_64.xml                     |   2 +-
 .../qemucapabilitiesdata/caps_7.1.0.ppc64.xml |   1 +
 .../caps_7.1.0.x86_64.xml                     |   2 +-
 .../caps_7.2.0.x86_64.xml                     |   2 +-
 .../caps_8.0.0.x86_64.replies                 | 471 ++++++++++++------
 .../caps_8.0.0.x86_64.xml                     | 244 ++++-----
 ...fault-cpu-kvm-virt-4.2.aarch64-latest.args |   3 +-
 ...fault-cpu-tcg-virt-4.2.aarch64-latest.args |   3 +-
 .../aarch64-features-sve.aarch64-latest.args  |   3 +-
 .../aarch64-tpm.aarch64-latest.args           |   3 +-
 .../aarch64-virt-graphics.aarch64-latest.args |   2 +-
 .../aarch64-virt-headless.aarch64-latest.args |   2 +-
 ...h64-virtio-pci-default.aarch64-latest.args |   3 +-
 .../audio-alsa-best.x86_64-latest.args        |   3 +-
 .../audio-alsa-full.x86_64-latest.args        |   3 +-
 .../audio-alsa-minimal.x86_64-latest.args     |   3 +-
 .../audio-coreaudio-best.x86_64-latest.args   |   3 +-
 .../audio-coreaudio-full.x86_64-latest.args   |   3 +-
 ...audio-coreaudio-minimal.x86_64-latest.args |   3 +-
 ...udio-default-nographics.x86_64-latest.args |   3 +-
 .../audio-default-sdl.x86_64-latest.args      |   3 +-
 .../audio-default-spice.x86_64-latest.args    |   3 +-
 .../audio-default-vnc.x86_64-latest.args      |   3 +-
 .../audio-file-best.x86_64-latest.args        |   3 +-
 .../audio-file-full.x86_64-latest.args        |   3 +-
 .../audio-file-minimal.x86_64-latest.args     |   3 +-
 .../audio-jack-full.x86_64-latest.args        |   3 +-
 .../audio-jack-minimal.x86_64-latest.args     |   3 +-
 .../audio-many-backends.x86_64-latest.args    |   3 +-
 .../audio-none-best.x86_64-latest.args        |   3 +-
 .../audio-none-full.x86_64-latest.args        |   3 +-
 .../audio-none-minimal.x86_64-latest.args     |   3 +-
 .../audio-oss-best.x86_64-latest.args         |   3 +-
 .../audio-oss-full.x86_64-latest.args         |   3 +-
 .../audio-oss-minimal.x86_64-latest.args      |   3 +-
 .../audio-pulseaudio-best.x86_64-latest.args  |   3 +-
 .../audio-pulseaudio-full.x86_64-latest.args  |   3 +-
 ...udio-pulseaudio-minimal.x86_64-latest.args |   3 +-
 .../audio-sdl-best.x86_64-latest.args         |   3 +-
 .../audio-sdl-full.x86_64-latest.args         |   3 +-
 .../audio-sdl-minimal.x86_64-latest.args      |   3 +-
 .../audio-spice-best.x86_64-latest.args       |   3 +-
 .../audio-spice-full.x86_64-latest.args       |   3 +-
 .../audio-spice-minimal.x86_64-latest.args    |   3 +-
 .../blkdeviotune-group-num.x86_64-latest.args |   3 +-
 ...blkdeviotune-max-length.x86_64-latest.args |   3 +-
 .../blkdeviotune-max.x86_64-latest.args       |   3 +-
 .../blkdeviotune.x86_64-latest.args           |   3 +-
 .../boot-cdrom.x86_64-latest.args             |   3 +-
 .../boot-complex.x86_64-latest.args           |   3 +-
 .../boot-floppy-q35.x86_64-latest.args        |   3 +-
 .../boot-floppy.x86_64-latest.args            |   3 +-
 ...boot-menu-disable-drive.x86_64-latest.args |   3 +-
 .../boot-menu-disable.x86_64-latest.args      |   3 +-
 ...enu-enable-with-timeout.x86_64-latest.args |   3 +-
 .../boot-menu-enable.x86_64-latest.args       |   3 +-
 .../boot-multi.x86_64-latest.args             |   3 +-
 .../boot-network.x86_64-latest.args           |   3 +-
 .../boot-order.x86_64-latest.args             |   3 +-
 ...l-qemu-vdagent-features.x86_64-latest.args |   3 +-
 .../channel-qemu-vdagent.x86_64-latest.args   |   3 +-
 .../channel-unix-guestfwd.x86_64-latest.args  |   3 +-
 .../clock-absolute.x86_64-latest.args         |   3 +-
 .../clock-timer-armvtimer.aarch64-latest.args |   3 +-
 .../console-compat-auto.x86_64-latest.args    |   3 +-
 .../console-compat-chardev.x86_64-latest.args |   3 +-
 .../console-compat.x86_64-latest.args         |   3 +-
 .../console-virtio-unix.x86_64-latest.args    |   3 +-
 .../controller-usb-order.x86_64-latest.args   |   3 +-
 .../controller-virtio-scsi.x86_64-latest.args |   3 +-
 ...-Icelake-Server-pconfig.x86_64-latest.args |   3 +-
 .../cpu-eoi-disabled.x86_64-latest.args       |   2 +-
 .../cpu-eoi-enabled.x86_64-latest.args        |   2 +-
 .../cpu-host-model.x86_64-4.2.0.args          |   3 +-
 .../cpu-host-model.x86_64-5.0.0.args          |   3 +-
 .../cpu-host-model.x86_64-5.1.0.args          |   3 +-
 .../cpu-host-model.x86_64-5.2.0.args          |   3 +-
 .../cpu-host-model.x86_64-6.0.0.args          |   3 +-
 .../cpu-host-model.x86_64-6.1.0.args          |   3 +-
 .../cpu-host-model.x86_64-latest.args         |   3 +-
 .../cpu-translation.x86_64-latest.args        |   3 +-
 .../cputune-cpuset-big-id.x86_64-latest.args  |   3 +-
 .../crypto-builtin.x86_64-latest.args         |   3 +-
 ...ult-video-type-aarch64.aarch64-latest.args |   3 +-
 ...default-video-type-ppc64.ppc64-latest.args |   2 +-
 .../devices-acpi-index.x86_64-latest.args     |   2 +-
 .../disk-aio-io_uring.x86_64-latest.args      |   3 +-
 .../disk-aio.x86_64-latest.args               |   3 +-
 .../disk-arm-virtio-sd.aarch64-latest.args    |   3 +-
 ...-backing-chains-noindex.x86_64-latest.args |   3 +-
 .../disk-blockio.x86_64-latest.args           |   3 +-
 .../disk-boot-cdrom.x86_64-latest.args        |   3 +-
 .../disk-boot-disk.x86_64-latest.args         |   3 +-
 .../disk-cache.x86_64-latest.args             |   3 +-
 .../disk-cdrom-bus-other.x86_64-latest.args   |   3 +-
 ...m-empty-network-invalid.x86_64-latest.args |   3 +-
 .../disk-cdrom-network.x86_64-latest.args     |   2 +-
 .../disk-cdrom-tray.x86_64-latest.args        |   3 +-
 .../disk-cdrom.x86_64-latest.args             |   3 +-
 .../disk-copy_on_read.x86_64-latest.args      |   3 +-
 .../disk-detect-zeroes.x86_64-latest.args     |   3 +-
 .../disk-discard.x86_64-latest.args           |   3 +-
 .../disk-error-policy.x86_64-latest.args      |   3 +-
 .../disk-floppy-q35.x86_64-latest.args        |   3 +-
 .../disk-floppy-tray.x86_64-latest.args       |   3 +-
 .../disk-floppy.x86_64-latest.args            |   3 +-
 .../disk-fmt-qcow.x86_64-latest.args          |   3 +-
 .../disk-geometry.x86_64-latest.args          |   3 +-
 .../disk-ide-split.x86_64-latest.args         |   3 +-
 .../disk-ide-wwn.x86_64-latest.args           |   3 +-
 .../disk-ioeventfd.x86_64-latest.args         |   3 +-
 .../disk-metadata-cache.x86_64-latest.args    |   3 +-
 .../disk-network-gluster.x86_64-latest.args   |   3 +-
 .../disk-network-http.x86_64-latest.args      |   3 +-
 .../disk-network-iscsi.x86_64-latest.args     |   3 +-
 .../disk-network-nbd.x86_64-latest.args       |   3 +-
 .../disk-network-nfs.x86_64-latest.args       |   3 +-
 ...-network-rbd-encryption.x86_64-latest.args |   3 +-
 ...sk-network-rbd-no-colon.x86_64-latest.args |   3 +-
 .../disk-network-rbd.x86_64-latest.args       |   3 +-
 .../disk-network-sheepdog.x86_64-6.0.0.args   |   3 +-
 ...isk-network-source-auth.x86_64-latest.args |   3 +-
 ...rk-tlsx509-nbd-hostname.x86_64-latest.args |   3 +-
 ...disk-network-tlsx509-nbd.x86_64-5.2.0.args |   3 +-
 ...isk-network-tlsx509-nbd.x86_64-latest.args |   3 +-
 ...isk-network-tlsx509-vxhs.x86_64-5.0.0.args |   3 +-
 .../disk-no-boot.x86_64-latest.args           |   3 +-
 .../disk-nvme.x86_64-latest.args              |   3 +-
 .../disk-order.x86_64-latest.args             |   3 +-
 .../disk-readonly-disk.x86_64-latest.args     |   3 +-
 .../disk-rotation.x86_64-latest.args          |   3 +-
 .../disk-sata-device.x86_64-latest.args       |   3 +-
 .../disk-scsi-device-auto.x86_64-latest.args  |   3 +-
 .../disk-scsi-disk-split.x86_64-latest.args   |   3 +-
 .../disk-scsi-disk-vpd.x86_64-latest.args     |   3 +-
 .../disk-scsi-disk-wwn.x86_64-latest.args     |   3 +-
 ...sk-scsi-lun-passthrough.x86_64-latest.args |   3 +-
 .../disk-scsi.x86_64-latest.args              |   3 +-
 .../disk-serial.x86_64-latest.args            |   3 +-
 .../disk-shared.x86_64-latest.args            |   3 +-
 .../disk-slices.x86_64-latest.args            |   3 +-
 .../disk-snapshot.x86_64-latest.args          |   3 +-
 .../disk-source-fd.x86_64-latest.args         |   3 +-
 .../disk-source-pool-mode.x86_64-latest.args  |   3 +-
 .../disk-source-pool.x86_64-latest.args       |   3 +-
 .../disk-transient.x86_64-latest.args         |   3 +-
 ...sk-usb-device-removable.x86_64-latest.args |   3 +-
 .../disk-usb-device.x86_64-latest.args        |   3 +-
 .../disk-vhostuser-numa.x86_64-4.2.0.args     |   3 +-
 .../disk-vhostuser-numa.x86_64-latest.args    |   3 +-
 .../disk-vhostuser.x86_64-latest.args         |   3 +-
 .../disk-virtio-queues.x86_64-latest.args     |   3 +-
 ...virtio-scsi-reservations.x86_64-5.2.0.args |   3 +-
 ...irtio-scsi-reservations.x86_64-latest.args |   3 +-
 .../disk-virtio.x86_64-latest.args            |   3 +-
 .../encrypted-disk-usage.x86_64-latest.args   |   3 +-
 .../encrypted-disk.x86_64-latest.args         |   3 +-
 .../eoi-disabled.x86_64-latest.args           |   2 +-
 .../eoi-enabled.x86_64-latest.args            |   2 +-
 .../event_idx.x86_64-latest.args              |   3 +-
 ...d-memory-numa-topology4.x86_64-latest.args |   3 +-
 .../fips-enabled.x86_64-5.1.0.args            |   3 +-
 .../fips-enabled.x86_64-latest.args           |   3 +-
 ...are-auto-bios-stateless.x86_64-latest.args |   2 +-
 .../firmware-auto-bios.x86_64-latest.args     |   2 +-
 ...mware-auto-efi-aarch64.aarch64-latest.args |   2 +-
 ...-auto-efi-enrolled-keys.x86_64-latest.args |   2 +-
 ...-auto-efi-loader-secure.x86_64-latest.args |   2 +-
 ...to-efi-no-enrolled-keys.x86_64-latest.args |   2 +-
 ...are-auto-efi-no-secboot.x86_64-latest.args |   2 +-
 ...firmware-auto-efi-nvram.x86_64-latest.args |   2 +-
 ...rmware-auto-efi-secboot.x86_64-latest.args |   2 +-
 ...ware-auto-efi-stateless.x86_64-latest.args |   2 +-
 .../firmware-auto-efi.x86_64-latest.args      |   2 +-
 ...manual-bios-rw-implicit.x86_64-latest.args |   2 +-
 ...firmware-manual-bios-rw.x86_64-latest.args |   2 +-
 ...e-manual-efi-nvram-file.x86_64-latest.args |   2 +-
 ...efi-nvram-network-iscsi.x86_64-latest.args |   2 +-
 ...l-efi-nvram-network-nbd.x86_64-latest.args |   2 +-
 ...nual-efi-nvram-template.x86_64-latest.args |   2 +-
 ...re-manual-efi-stateless.x86_64-latest.args |   2 +-
 .../floppy-drive-fat.x86_64-latest.args       |   3 +-
 .../qemuxml2argvdata/fs9p.x86_64-latest.args  |   3 +-
 .../genid-auto.x86_64-latest.args             |   2 +-
 .../qemuxml2argvdata/genid.x86_64-latest.args |   2 +-
 ...egl-headless-rendernode.x86_64-latest.args |   3 +-
 .../graphics-egl-headless.x86_64-latest.args  |   3 +-
 ...s-spice-agent-file-xfer.x86_64-latest.args |   3 +-
 ...aphics-spice-agentmouse.x86_64-latest.args |   3 +-
 ...s-spice-auto-socket-cfg.x86_64-latest.args |   3 +-
 ...phics-spice-auto-socket.x86_64-latest.args |   3 +-
 ...phics-spice-compression.x86_64-latest.args |   3 +-
 ...hics-spice-egl-headless.x86_64-latest.args |   3 +-
 ...pice-gl-auto-rendernode.x86_64-latest.args |   3 +-
 .../graphics-spice-no-args.x86_64-latest.args |   3 +-
 .../graphics-spice-qxl-vga.x86_64-latest.args |   3 +-
 .../graphics-spice-sasl.x86_64-latest.args    |   3 +-
 .../graphics-spice-socket.x86_64-latest.args  |   3 +-
 .../graphics-spice-timeout.x86_64-latest.args |   2 +-
 ...raphics-spice-usb-redir.x86_64-latest.args |   3 +-
 .../graphics-spice.x86_64-latest.args         |   3 +-
 ...ics-vnc-auto-socket-cfg.x86_64-latest.args |   3 +-
 ...raphics-vnc-auto-socket.x86_64-latest.args |   3 +-
 ...aphics-vnc-egl-headless.x86_64-latest.args |   3 +-
 ...hics-vnc-no-listen-attr.x86_64-latest.args |   3 +-
 .../graphics-vnc-none.x86_64-latest.args      |   3 +-
 .../graphics-vnc-policy.x86_64-latest.args    |   3 +-
 .../graphics-vnc-power.x86_64-latest.args     |   3 +-
 ...remove-generated-socket.x86_64-latest.args |   3 +-
 .../graphics-vnc-sasl.x86_64-latest.args      |   3 +-
 ...-vnc-socket-new-cmdline.x86_64-latest.args |   3 +-
 .../graphics-vnc-socket.x86_64-latest.args    |   3 +-
 .../graphics-vnc-tls-secret.x86_64-5.2.0.args |   3 +-
 ...graphics-vnc-tls-secret.x86_64-latest.args |   3 +-
 .../graphics-vnc-tls.x86_64-latest.args       |   3 +-
 .../graphics-vnc-websocket.x86_64-latest.args |   3 +-
 .../graphics-vnc.x86_64-latest.args           |   3 +-
 ...tdev-mdev-display-ramfb.x86_64-latest.args |   3 +-
 ...play-spice-egl-headless.x86_64-latest.args |   3 +-
 ...ev-display-spice-opengl.x86_64-latest.args |   3 +-
 ...isplay-vnc-egl-headless.x86_64-latest.args |   3 +-
 ...ostdev-mdev-display-vnc.x86_64-latest.args |   3 +-
 ...tdev-pci-address-device.x86_64-latest.args |   3 +-
 .../hostdev-pci-address.x86_64-latest.args    |   3 +-
 .../hostdev-scsi-lsi.x86_64-latest.args       |   3 +-
 ...dev-scsi-vhost-scsi-pcie.x86_64-4.2.0.args |   3 +-
 ...ev-scsi-vhost-scsi-pcie.x86_64-latest.args |   3 +-
 ...ostdev-scsi-virtio-scsi.x86_64-latest.args |   3 +-
 ...usb-address-device-boot.x86_64-latest.args |   3 +-
 ...tdev-usb-address-device.x86_64-latest.args |   3 +-
 .../hostdev-usb-address.x86_64-latest.args    |   3 +-
 .../hugepages-default-2M.x86_64-latest.args   |   3 +-
 ...ges-default-system-size.x86_64-latest.args |   3 +-
 .../hugepages-default.x86_64-latest.args      |   3 +-
 .../hugepages-memaccess.x86_64-latest.args    |   3 +-
 .../hugepages-memaccess2.x86_64-latest.args   |   3 +-
 .../hugepages-memaccess3.x86_64-latest.args   |   3 +-
 .../hugepages-nodeset.x86_64-latest.args      |   3 +-
 ...gepages-numa-default-2M.x86_64-latest.args |   3 +-
 ...pages-numa-default-dimm.x86_64-latest.args |   3 +-
 .../hugepages-numa-default.x86_64-latest.args |   3 +-
 ...pages-numa-nodeset-part.x86_64-latest.args |   3 +-
 .../hugepages-numa-nodeset.x86_64-latest.args |   3 +-
 .../hugepages-nvdimm.x86_64-latest.args       |   3 +-
 .../hugepages-shared.x86_64-latest.args       |   3 +-
 .../hyperv-off.x86_64-latest.args             |   2 +-
 .../hyperv-panic.x86_64-latest.args           |   2 +-
 .../hyperv-passthrough.x86_64-6.1.0.args      |   2 +-
 .../hyperv-passthrough.x86_64-latest.args     |   2 +-
 .../hyperv-stimer-direct.x86_64-latest.args   |   2 +-
 .../hyperv.x86_64-latest.args                 |   2 +-
 .../input-linux.x86_64-latest.args            |   3 +-
 .../intel-iommu-aw-bits.x86_64-latest.args    |   3 +-
 ...ntel-iommu-caching-mode.x86_64-latest.args |   3 +-
 ...ntel-iommu-device-iotlb.x86_64-latest.args |   3 +-
 .../intel-iommu-eim.x86_64-latest.args        |   3 +-
 .../intel-iommu.x86_64-latest.args            |   3 +-
 .../iommu-smmuv3.aarch64-latest.args          |   3 +-
 ...othreads-ids-pool-sizes.x86_64-latest.args |   3 +-
 ...othreads-virtio-scsi-pci.x86_64-5.2.0.args |   3 +-
 ...threads-virtio-scsi-pci.x86_64-latest.args |   3 +-
 .../kvmclock+eoi-disabled.x86_64-latest.args  |   2 +-
 ...nch-security-sev-direct.x86_64-latest.args |   3 +-
 ...ev-missing-platform-info.x86_64-6.0.0.args |   3 +-
 .../launch-security-sev.x86_64-6.0.0.args     |   3 +-
 .../luks-disks-source-qcow2.x86_64-5.2.0.args |   3 +-
 ...luks-disks-source-qcow2.x86_64-latest.args |   3 +-
 .../luks-disks-source.x86_64-latest.args      |   3 +-
 .../luks-disks.x86_64-latest.args             |   3 +-
 .../machine-smm-off.x86_64-latest.args        |   3 +-
 .../machine-smm-on.x86_64-latest.args         |   3 +-
 ...memory-default-hugepage.x86_64-latest.args |   3 +-
 .../memfd-memory-numa.x86_64-latest.args      |   3 +-
 ...emory-hotplug-dimm-addr.x86_64-latest.args |   3 +-
 ...y-hotplug-nvdimm-access.x86_64-latest.args |   3 +-
 ...ory-hotplug-nvdimm-align.x86_64-5.2.0.args |   3 +-
 ...ry-hotplug-nvdimm-align.x86_64-latest.args |   3 +-
 ...ory-hotplug-nvdimm-label.x86_64-5.2.0.args |   3 +-
 ...ry-hotplug-nvdimm-label.x86_64-latest.args |   3 +-
 ...mory-hotplug-nvdimm-pmem.x86_64-5.2.0.args |   3 +-
 ...ory-hotplug-nvdimm-pmem.x86_64-latest.args |   3 +-
 ...-hotplug-nvdimm-readonly.x86_64-5.2.0.args |   3 +-
 ...hotplug-nvdimm-readonly.x86_64-latest.args |   3 +-
 .../memory-hotplug-nvdimm.x86_64-latest.args  |   3 +-
 ...mory-hotplug-virtio-mem.x86_64-latest.args |   3 +-
 ...mory-hotplug-virtio-pmem.x86_64-5.2.0.args |   3 +-
 ...ory-hotplug-virtio-pmem.x86_64-latest.args |   3 +-
 .../misc-no-reboot.x86_64-5.2.0.args          |   3 +-
 .../misc-no-reboot.x86_64-latest.args         |   3 +-
 .../mlock-off.x86_64-latest.args              |   3 +-
 .../mlock-on.x86_64-latest.args               |   3 +-
 .../name-escape.x86_64-latest.args            |   3 +-
 .../net-user-passt.x86_64-7.2.0.args          |   3 +-
 .../net-user-passt.x86_64-latest.args         |   3 +-
 .../net-user.x86_64-latest.args               |   3 +-
 .../net-vdpa-multiqueue.x86_64-latest.args    |   3 +-
 .../net-vdpa.x86_64-latest.args               |   3 +-
 .../net-vhostuser.x86_64-latest.args          |   3 +-
 .../net-virtio-rss.x86_64-latest.args         |   3 +-
 .../numatune-hmat.x86_64-latest.args          |   2 +-
 ...emnode-restrictive-mode.x86_64-latest.args |   3 +-
 .../numatune-memnode.x86_64-5.2.0.args        |   3 +-
 .../numatune-memnode.x86_64-latest.args       |   3 +-
 .../numatune-system-memory.x86_64-latest.args |   3 +-
 .../pages-dimm-discard.x86_64-latest.args     |   3 +-
 ...pages-discard-hugepages.x86_64-latest.args |   3 +-
 .../pages-discard.x86_64-latest.args          |   3 +-
 .../panic-double.x86_64-latest.args           |   2 +-
 .../panic-no-address.x86_64-latest.args       |   3 +-
 .../qemuxml2argvdata/panic.x86_64-latest.args |   3 +-
 ...arallel-parport-chardev.x86_64-latest.args |   3 +-
 .../parallel-tcp-chardev.x86_64-latest.args   |   3 +-
 .../parallel-unix-chardev.x86_64-latest.args  |   3 +-
 ...pi-root-hotplug-disable.x86_64-latest.args |   3 +-
 ...cpi-root-hotplug-enable.x86_64-latest.args |   3 +-
 .../pci-serial-dev-chardev.x86_64-latest.args |   3 +-
 ...e-expander-bus-aarch64.aarch64-latest.args |   3 +-
 ...cie-root-port-nohotplug.x86_64-latest.args |   3 +-
 ...ault-cpu-kvm-pseries-2.7.ppc64-latest.args |   2 +-
 ...ault-cpu-kvm-pseries-3.1.ppc64-latest.args |   2 +-
 ...ault-cpu-kvm-pseries-4.2.ppc64-latest.args |   2 +-
 ...ault-cpu-tcg-pseries-2.7.ppc64-latest.args |   2 +-
 ...ault-cpu-tcg-pseries-3.1.ppc64-latest.args |   2 +-
 ...ault-cpu-tcg-pseries-4.2.ppc64-latest.args |   2 +-
 .../ppc64-pseries-graphics.ppc64-latest.args  |   2 +-
 .../ppc64-pseries-headless.ppc64-latest.args  |   2 +-
 .../ppc64-tpmproxy-single.ppc64-latest.args   |   2 +-
 .../ppc64-tpmproxy-with-tpm.ppc64-latest.args |   2 +-
 .../pseries-basic.ppc64-latest.args           |   2 +-
 .../pseries-console-virtio.ppc64-latest.args  |   2 +-
 ...eries-cpu-compat-power10.ppc64-latest.args |   2 +-
 ...series-cpu-compat-power9.ppc64-latest.args |   2 +-
 .../pseries-cpu-compat.ppc64-latest.args      |   2 +-
 .../pseries-cpu-exact.ppc64-latest.args       |   2 +-
 .../pseries-cpu-le.ppc64-latest.args          |   2 +-
 .../pseries-features.ppc64-latest.args        |   2 +-
 .../pseries-hostdevs-1.ppc64-latest.args      |   2 +-
 .../pseries-hostdevs-2.ppc64-latest.args      |   2 +-
 .../pseries-hostdevs-3.ppc64-latest.args      |   2 +-
 .../pseries-many-buses-1.ppc64-latest.args    |   2 +-
 .../pseries-many-buses-2.ppc64-latest.args    |   2 +-
 .../pseries-many-devices.ppc64-latest.args    |   2 +-
 .../pseries-nvram.ppc64-latest.args           |   2 +-
 .../pseries-panic-missing.ppc64-latest.args   |   2 +-
 ...pseries-panic-no-address.ppc64-latest.args |   2 +-
 ...ries-phb-default-missing.ppc64-latest.args |   2 +-
 .../pseries-phb-numa-node.ppc64-latest.args   |   2 +-
 .../pseries-phb-simple.ppc64-latest.args      |   2 +-
 .../pseries-serial-native.ppc64-latest.args   |   2 +-
 .../pseries-serial-pci.ppc64-latest.args      |   2 +-
 .../pseries-serial-usb.ppc64-latest.args      |   2 +-
 .../pseries-usb-default.ppc64-latest.args     |   2 +-
 .../pseries-usb-kbd.ppc64-latest.args         |   2 +-
 .../pseries-usb-multi.ppc64-latest.args       |   2 +-
 ...series-vio-user-assigned.ppc64-latest.args |   2 +-
 .../pseries-vio.ppc64-latest.args             |   2 +-
 .../pv-spinlock-disabled.x86_64-latest.args   |   2 +-
 .../pv-spinlock-enabled.x86_64-latest.args    |   2 +-
 .../pvpanic-pci-aarch64.aarch64-latest.args   |   2 +-
 ...pci-no-address-aarch64.aarch64-latest.args |   2 +-
 .../pvpanic-pci-x86_64.x86_64-latest.args     |   3 +-
 ...q35-default-devices-only.x86_64-4.2.0.args |   3 +-
 ...35-default-devices-only.x86_64-latest.args |   3 +-
 .../q35-multifunction.x86_64-4.2.0.args       |   3 +-
 .../q35-multifunction.x86_64-latest.args      |   3 +-
 .../q35-pcie-autoadd.x86_64-4.2.0.args        |   3 +-
 .../q35-pcie-autoadd.x86_64-latest.args       |   3 +-
 .../q35-pcie.x86_64-4.2.0.args                |   3 +-
 .../q35-pcie.x86_64-latest.args               |   3 +-
 .../q35-virt-manager-basic.x86_64-4.2.0.args  |   2 +-
 .../q35-virt-manager-basic.x86_64-latest.args |   2 +-
 .../qemu-ns.x86_64-latest.args                |   3 +-
 .../serial-debugcon.x86_64-latest.args        |   3 +-
 ...rial-dev-chardev-iobase.x86_64-latest.args |   3 +-
 .../serial-dev-chardev.x86_64-latest.args     |   3 +-
 .../serial-file-chardev.x86_64-latest.args    |   3 +-
 .../serial-file-log.x86_64-latest.args        |   3 +-
 .../serial-many-chardev.x86_64-latest.args    |   3 +-
 .../serial-pty-chardev.x86_64-latest.args     |   3 +-
 .../serial-spiceport.x86_64-latest.args       |   3 +-
 .../serial-tcp-chardev.x86_64-latest.args     |   3 +-
 ...rial-tcp-telnet-chardev.x86_64-latest.args |   3 +-
 ...p-tlsx509-chardev-notls.x86_64-latest.args |   3 +-
 ...-tlsx509-chardev-verify.x86_64-latest.args |   3 +-
 ...ial-tcp-tlsx509-chardev.x86_64-latest.args |   3 +-
 ...-tlsx509-secret-chardev.x86_64-latest.args |   3 +-
 .../serial-udp-chardev.x86_64-latest.args     |   3 +-
 .../serial-unix-chardev.x86_64-latest.args    |   3 +-
 .../serial-vc-chardev.x86_64-latest.args      |   3 +-
 .../sgx-epc.x86_64-7.0.0.args                 |   3 +-
 ...rtcard-passthrough-unix.x86_64-latest.args |   3 +-
 .../tpm-emulator-spapr.ppc64-latest.args      |   2 +-
 .../tpm-emulator-tpm2-enc.x86_64-latest.args  |   2 +-
 ...pm-emulator-tpm2-pstate.x86_64-latest.args |   2 +-
 .../tpm-emulator-tpm2.x86_64-latest.args      |   2 +-
 .../tpm-emulator.x86_64-latest.args           |   2 +-
 .../tpm-external.x86_64-latest.args           |   2 +-
 .../tpm-passthrough-crb.x86_64-latest.args    |   2 +-
 .../tpm-passthrough.x86_64-latest.args        |   2 +-
 .../tseg-explicit-size.x86_64-latest.args     |   3 +-
 .../usb-redir-unix.x86_64-latest.args         |   3 +-
 .../user-aliases-usb.x86_64-latest.args       |   2 +-
 .../user-aliases.x86_64-latest.args           |   2 +-
 .../user-aliases2.x86_64-latest.args          |   3 +-
 ...vhost-user-fs-fd-memory.x86_64-latest.args |   3 +-
 ...vhost-user-fs-hugepages.x86_64-latest.args |   2 +-
 ...host-user-gpu-secondary.x86_64-latest.args |   3 +-
 .../vhost-user-vga.x86_64-latest.args         |   3 +-
 .../vhost-vsock-auto.x86_64-latest.args       |   3 +-
 .../vhost-vsock.x86_64-latest.args            |   3 +-
 ...eo-bochs-display-device.x86_64-latest.args |   3 +-
 ...video-qxl-device-vram64.x86_64-latest.args |   3 +-
 ...o-qxl-sec-device-vram64.x86_64-latest.args |   3 +-
 ...eo-ramfb-display-device.x86_64-latest.args |   3 +-
 ...video-virtio-vga-gpu-gl.x86_64-latest.args |   3 +-
 .../virtio-9p-createmode.x86_64-latest.args   |   3 +-
 .../virtio-9p-multidevs.x86_64-latest.args    |   3 +-
 .../virtio-iommu-aarch64.aarch64-latest.args  |   2 +-
 .../virtio-iommu-x86_64.x86_64-latest.args    |   2 +-
 .../virtio-lun.x86_64-latest.args             |   3 +-
 ...virtio-non-transitional.x86_64-latest.args |   3 +-
 ...-options-controller-ats.x86_64-latest.args |   3 +-
 ...ptions-controller-iommu.x86_64-latest.args |   3 +-
 ...tions-controller-packed.x86_64-latest.args |   3 +-
 ...virtio-options-disk-ats.x86_64-latest.args |   3 +-
 ...rtio-options-disk-iommu.x86_64-latest.args |   3 +-
 ...tio-options-disk-packed.x86_64-latest.args |   3 +-
 .../virtio-options-fs-ats.x86_64-latest.args  |   3 +-
 ...virtio-options-fs-iommu.x86_64-latest.args |   3 +-
 ...irtio-options-fs-packed.x86_64-latest.args |   3 +-
 ...irtio-options-input-ats.x86_64-latest.args |   3 +-
 ...tio-options-input-iommu.x86_64-latest.args |   3 +-
 ...io-options-input-packed.x86_64-latest.args |   3 +-
 ...-options-memballoon-ats.x86_64-latest.args |   3 +-
 ...loon-freepage-reporting.x86_64-latest.args |   3 +-
 ...ptions-memballoon-iommu.x86_64-latest.args |   3 +-
 ...tions-memballoon-packed.x86_64-latest.args |   3 +-
 .../virtio-options-net-ats.x86_64-latest.args |   3 +-
 ...irtio-options-net-iommu.x86_64-latest.args |   3 +-
 ...rtio-options-net-packed.x86_64-latest.args |   3 +-
 .../virtio-options-rng-ats.x86_64-latest.args |   3 +-
 ...irtio-options-rng-iommu.x86_64-latest.args |   3 +-
 ...rtio-options-rng-packed.x86_64-latest.args |   3 +-
 ...irtio-options-video-ats.x86_64-latest.args |   3 +-
 ...tio-options-video-iommu.x86_64-latest.args |   3 +-
 ...io-options-video-packed.x86_64-latest.args |   3 +-
 .../virtio-options.x86_64-latest.args         |   3 +-
 .../virtio-rng-builtin.x86_64-5.2.0.args      |   3 +-
 .../virtio-rng-builtin.x86_64-latest.args     |   3 +-
 .../virtio-rng-egd-unix.x86_64-5.2.0.args     |   3 +-
 .../virtio-rng-egd-unix.x86_64-latest.args    |   3 +-
 .../virtio-transitional.x86_64-latest.args    |   3 +-
 .../watchdog-device.x86_64-latest.args        |   3 +-
 .../watchdog-dump.x86_64-latest.args          |   3 +-
 .../watchdog-injectnmi.x86_64-latest.args     |   3 +-
 .../watchdog-q35-multiple.x86_64-latest.args  |   3 +-
 .../watchdog.x86_64-latest.args               |   3 +-
 .../x86-kvm-32-on-64.x86_64-latest.args       |   3 +-
 ...-default-cpu-kvm-pc-4.2.x86_64-latest.args |   2 +-
 ...default-cpu-kvm-q35-4.2.x86_64-latest.args |   2 +-
 ...efault-cpu-tcg-features.x86_64-latest.args |   2 +-
 ...-default-cpu-tcg-pc-4.2.x86_64-latest.args |   2 +-
 ...default-cpu-tcg-q35-4.2.x86_64-latest.args |   2 +-
 .../x86_64-pc-graphics.x86_64-latest.args     |   2 +-
 .../x86_64-pc-headless.x86_64-latest.args     |   2 +-
 .../x86_64-q35-graphics.x86_64-latest.args    |   2 +-
 .../x86_64-q35-headless.x86_64-latest.args    |   2 +-
 tests/testutilsqemu.c                         |   9 +-
 485 files changed, 1044 insertions(+), 1145 deletions(-)

-- 
2.39.2

On Mon, Feb 27, 2023 at 04:27:36PM +0100, Peter Krempa wrote:
> The first part of the series is a straightforward replacement of
> '-no-acpi' by '-machine acpi=on/off' based on configuration.
> 
> '-no-acpi' was recently deprecated by qemu thus we must adapt.
> 
> The second part of this series fixes the use of ACPI (or lack thereof)
> for ARM machine types which don't support ACPI. We'll break such
> commandline by adding '-no-acpi' due to historical baggage.

Which machine types are you considering here ?  Would that be
any machine type except the 'virt' machine type I guess ?

Today we just do this in the QEMU driver:

    if ((ARCH_IS_X86(guestarch) || guestarch == VIR_ARCH_AARCH64))
        virCapabilitiesAddGuestFeatureWithToggle(guest, VIR_CAPS_GUEST_FEATURE_TYPE_ACPI,
                                                 true, true);

and virt-install/virt-manager look at this to decide whether
to add <acpi/> in the domain XML.

So if we're moving this capability into domain capabilities,
to become per-machine type variable, we'll need code changes
to any apps using the historical capability.


With regards,
Daniel
-- 
|: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org         -o-            https://fstop138.berrange.com :|
|: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange :|

On Mon, Feb 27, 2023 at 16:26:36 +0000, Daniel P. Berrangé wrote:
> On Mon, Feb 27, 2023 at 04:27:36PM +0100, Peter Krempa wrote:
> > The first part of the series is a straightforward replacement of
> > '-no-acpi' by '-machine acpi=on/off' based on configuration.
> > 
> > '-no-acpi' was recently deprecated by qemu thus we must adapt.
> > 
> > The second part of this series fixes the use of ACPI (or lack thereof)
> > for ARM machine types which don't support ACPI. We'll break such
> > commandline by adding '-no-acpi' due to historical baggage.
> 
> Which machine types are you considering here ? Would that be
> any machine type except the 'virt' machine type I guess ?

Indeed:

$ grep machine tests/qemucapabilitiesdata/caps_8.0.0.aarch64.xml | grep "acpi='no'"
  <machine type='tcg' name='integratorcp' maxCpus='1' defaultCPU='arm926-arm-cpu' defaultRAMid='integrator.ram' acpi='no'/>
  <machine type='tcg' name='qcom-dc-scm-v1-bmc' maxCpus='2' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='mori-bmc' maxCpus='2' defaultCPU='cortex-a9-arm-cpu' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='ast2600-evb' maxCpus='2' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='borzoi' maxCpus='1' defaultCPU='pxa270-c0-arm-cpu' acpi='no'/>
  <machine type='tcg' name='spitz' maxCpus='1' defaultCPU='pxa270-c0-arm-cpu' acpi='no'/>
  <machine type='tcg' name='nuri' maxCpus='2' acpi='no'/>
  <machine type='tcg' name='mcimx7d-sabre' maxCpus='2' defaultRAMid='mcimx7d-sabre.ram' acpi='no'/>
  <machine type='tcg' name='romulus-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='npcm750-evb' maxCpus='2' defaultCPU='cortex-a9-arm-cpu' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='rainier-bmc' maxCpus='2' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='mps3-an547' maxCpus='1' defaultCPU='cortex-m55-arm-cpu' defaultRAMid='DDR' acpi='no'/>
  <machine type='tcg' name='musca-b1' maxCpus='2' defaultCPU='cortex-m33-arm-cpu' acpi='no'/>
  <machine type='tcg' name='realview-pbx-a9' maxCpus='4' defaultCPU='cortex-a9-arm-cpu' acpi='no'/>
  <machine type='tcg' name='kzm' maxCpus='1' defaultRAMid='kzm.ram' acpi='no'/>
  <machine type='tcg' name='versatileab' maxCpus='1' defaultCPU='arm926-arm-cpu' defaultRAMid='versatile.ram' acpi='no'/>
  <machine type='tcg' name='fby35-bmc' maxCpus='2' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='musca-a' maxCpus='2' defaultCPU='cortex-m33-arm-cpu' acpi='no'/>
  <machine type='tcg' name='mcimx6ul-evk' maxCpus='1' defaultRAMid='mcimx6ul-evk.ram' acpi='no'/>
  <machine type='tcg' name='smdkc210' maxCpus='2' acpi='no'/>
  <machine type='tcg' name='sx1' maxCpus='1' defaultCPU='ti925t-arm-cpu' defaultRAMid='omap1.dram' acpi='no'/>
  <machine type='tcg' name='imx25-pdk' maxCpus='1' defaultRAMid='imx25.ram' acpi='no'/>
  <machine type='tcg' name='stm32vldiscovery' maxCpus='1' acpi='no'/>
  <machine type='tcg' name='orangepi-pc' maxCpus='4' defaultCPU='cortex-a7-arm-cpu' defaultRAMid='orangepi.ram' acpi='no'/>
  <machine type='tcg' name='quanta-q71l-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='z2' maxCpus='1' defaultCPU='pxa270-c5-arm-cpu' acpi='no'/>
  <machine type='tcg' name='xilinx-zynq-a9' maxCpus='1' defaultCPU='cortex-a9-arm-cpu' defaultRAMid='zynq.ext_ram' acpi='no'/>
  <machine type='tcg' name='xlnx-zcu102' maxCpus='6' defaultRAMid='ddr-ram' acpi='no'/>
  <machine type='tcg' name='tosa' maxCpus='1' acpi='no'/>
  <machine type='tcg' name='mps2-an500' maxCpus='1' defaultCPU='cortex-m7-arm-cpu' defaultRAMid='mps.ram' acpi='no'/>
  <machine type='tcg' name='mps2-an521' maxCpus='2' defaultCPU='cortex-m33-arm-cpu' defaultRAMid='mps.ram' acpi='no'/>
  <machine type='tcg' name='sabrelite' maxCpus='4' defaultRAMid='sabrelite.ram' acpi='no'/>
  <machine type='tcg' name='mps2-an511' maxCpus='1' defaultCPU='cortex-m3-arm-cpu' defaultRAMid='mps.ram' acpi='no'/>
  <machine type='tcg' name='canon-a1100' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='realview-eb' maxCpus='1' defaultCPU='arm926-arm-cpu' acpi='no'/>
  <machine type='tcg' name='quanta-gbs-bmc' maxCpus='2' defaultCPU='cortex-a9-arm-cpu' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='emcraft-sf2' maxCpus='1' defaultCPU='cortex-m3-arm-cpu' acpi='no'/>
  <machine type='tcg' name='realview-pb-a8' maxCpus='1' defaultCPU='cortex-a8-arm-cpu' acpi='no'/>
  <machine type='tcg' name='sbsa-ref' maxCpus='512' defaultCPU='cortex-a57-arm-cpu' defaultRAMid='sbsa-ref.ram' acpi='no'/>
  <machine type='tcg' name='raspi1ap' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='palmetto-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='sx1-v1' maxCpus='1' defaultCPU='ti925t-arm-cpu' defaultRAMid='omap1.dram' acpi='no'/>
  <machine type='tcg' name='n810' maxCpus='1' defaultCPU='arm1136-r2-arm-cpu' defaultRAMid='omap2.dram' acpi='no'/>
  <machine type='tcg' name='g220a-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='n800' maxCpus='1' defaultCPU='arm1136-r2-arm-cpu' defaultRAMid='omap2.dram' acpi='no'/>
  <machine type='tcg' name='tacoma-bmc' maxCpus='2' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='bletchley-bmc' maxCpus='2' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='quanta-gsj' maxCpus='2' defaultCPU='cortex-a9-arm-cpu' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='versatilepb' maxCpus='1' defaultCPU='arm926-arm-cpu' defaultRAMid='versatile.ram' acpi='no'/>
  <machine type='tcg' name='terrier' maxCpus='1' defaultCPU='pxa270-c5-arm-cpu' acpi='no'/>
  <machine type='tcg' name='mainstone' maxCpus='1' defaultCPU='pxa270-c5-arm-cpu' acpi='no'/>
  <machine type='tcg' name='realview-eb-mpcore' maxCpus='4' defaultCPU='arm11mpcore-arm-cpu' acpi='no'/>
  <machine type='tcg' name='supermicrox11-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='witherspoon-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='qcom-firework-bmc' maxCpus='2' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='mps3-an524' maxCpus='2' defaultCPU='cortex-m33-arm-cpu' defaultRAMid='DDR' acpi='no'/>
  <machine type='tcg' name='kudo-bmc' maxCpus='2' defaultCPU='cortex-a9-arm-cpu' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='vexpress-a9' maxCpus='4' defaultCPU='cortex-a9-arm-cpu' defaultRAMid='vexpress.highmem' acpi='no'/>
  <machine type='tcg' name='midway' maxCpus='4' defaultRAMid='highbank.dram' acpi='no'/>
  <machine type='tcg' name='musicpal' maxCpus='1' defaultCPU='arm926-arm-cpu' defaultRAMid='musicpal.ram' acpi='no'/>
  <machine type='tcg' name='lm3s811evb' maxCpus='1' defaultCPU='cortex-m3-arm-cpu' acpi='no'/>
  <machine type='tcg' name='lm3s6965evb' maxCpus='1' defaultCPU='cortex-m3-arm-cpu' acpi='no'/>
  <machine type='tcg' name='supermicro-x11spi-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='microbit' maxCpus='1' acpi='no'/>
  <machine type='tcg' name='fby35' maxCpus='3' acpi='no'/>
  <machine type='tcg' name='mps2-an505' maxCpus='1' defaultCPU='cortex-m33-arm-cpu' defaultRAMid='mps.ram' acpi='no'/>
  <machine type='tcg' name='mps2-an385' maxCpus='1' defaultCPU='cortex-m3-arm-cpu' defaultRAMid='mps.ram' acpi='no'/>
  <machine type='tcg' name='raspi3ap' maxCpus='4' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='cubieboard' maxCpus='1' defaultCPU='cortex-a8-arm-cpu' defaultRAMid='cubieboard.ram' acpi='no'/>
  <machine type='tcg' name='ast1030-evb' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='verdex' maxCpus='1' defaultCPU='pxa270-c0-arm-cpu' acpi='no'/>
  <machine type='tcg' name='netduino2' maxCpus='1' acpi='no'/>
  <machine type='tcg' name='xlnx-versal-virt' maxCpus='4' defaultRAMid='ddr' acpi='no'/>
  <machine type='tcg' name='mps2-an386' maxCpus='1' defaultCPU='cortex-m4-arm-cpu' defaultRAMid='mps.ram' acpi='no'/>
  <machine type='tcg' name='olimex-stm32-h405' maxCpus='1' defaultCPU='cortex-m4-arm-cpu' acpi='no'/>
  <machine type='tcg' name='raspi3b' maxCpus='4' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='raspi2b' maxCpus='4' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='vexpress-a15' maxCpus='4' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='vexpress.highmem' acpi='no'/>
  <machine type='tcg' name='fuji-bmc' maxCpus='2' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='sonorapass-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='cheetah' maxCpus='1' defaultCPU='ti925t-arm-cpu' defaultRAMid='omap1.dram' acpi='no'/>
  <machine type='tcg' name='ast2500-evb' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='highbank' maxCpus='4' defaultRAMid='highbank.dram' acpi='no'/>
  <machine type='tcg' name='akita' maxCpus='1' defaultCPU='pxa270-c0-arm-cpu' acpi='no'/>
  <machine type='tcg' name='connex' maxCpus='1' acpi='no'/>
  <machine type='tcg' name='netduinoplus2' maxCpus='1' acpi='no'/>
  <machine type='tcg' name='collie' maxCpus='1' defaultCPU='sa1110-arm-cpu' defaultRAMid='strongarm.sdram' acpi='no'/>
  <machine type='tcg' name='raspi0' maxCpus='1' defaultRAMid='ram' acpi='no'/>
  <machine type='tcg' name='fp5280g2-bmc' maxCpus='1' defaultRAMid='ram' acpi='no'/>


In contrast to those which do report ACPI:

$ grep machine tests/qemucapabilitiesdata/caps_8.0.0.aarch64.xml | grep "acpi='yes'"
  <machine type='tcg' name='virt-2.7' maxCpus='255' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-3.0' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-5.0' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-2.10' maxCpus='255' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-2.8' maxCpus='255' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-3.1' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-5.1' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-2.11' maxCpus='255' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-2.9' maxCpus='255' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-5.2' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-2.12' maxCpus='255' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-7.0' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-4.0' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-7.1' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-4.1' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-7.2' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-4.2' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-6.0' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-8.0' alias='virt' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-6.1' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-6.2' maxCpus='512' defaultCPU='cortex-a15-arm-cpu' defaultRAMid='mach-virt.ram' acpi='yes'/>
  <machine type='tcg' name='virt-2.6' maxCpus='255' defaultCPU='cortex-a15-arm-cpu' numaMemSupported='yes' defaultRAMid='mach-virt.ram' acpi='yes'/>

> Today we just do this in the QEMU driver:
> 
>     if ((ARCH_IS_X86(guestarch) || guestarch == VIR_ARCH_AARCH64))
>         virCapabilitiesAddGuestFeatureWithToggle(guest, VIR_CAPS_GUEST_FEATURE_TYPE_ACPI,
>                                                  true, true);
> 
> and virt-install/virt-manager look at this to decide whether
> to add <acpi/> in the domain XML.
> 
> So if we're moving this capability into domain capabilities,
> to become per-machine type variable, we'll need code changes
> to any apps using the historical capability.

Okay so this then also should be exposed in domain capabilities, because
this series simply deals with formatting it on the commandline, rather
than any discoverability.

The main problem reported as issue is that with ARM if you don't add
'<acpi/>' to the XML we format '-no-acpi' which gets turned into
acpi=off inside qemu and then the commandline parser moans that 'acpi'
property of the machine was not found.

If you try to work it aroud by adding '<acpi/>' to suppress '-no-acpi'
then in turn libvirt moans that for uusing acpi you need UEFI.