File supported.x86.txt of Package qemu.30221
[qemu-x86 package document]
SLES 15 SP2 QEMU/KVM RELATED SUPPORT STATEMENTS
Overview
--------
The QEMU based packages included with SLES 15 SP2 provide a large variety of
features, from the very latest customer requests to features of questionable
quality or value. The linux kernel includes components which contribute KVM
virtualization features as well. This document was created to assist the user
in deciding which features can be relied upon to build enterprise class
virtualization solutions. KVM based virtualization for x86 (Intel 64/AMD64),
for IBM System z (s390x), and for the ARM64 architecture (AArch64) are offered
at the L3 (full support) level. The bulk of this document deals with L3
supported features and is primarily x86 centric. This document should be
considered a companion to the standard virtualization documentation delivered
with the product.
KVM is implemented in linux kernel modules which enable the linux kernel to
function as an integral part of the KVM hypervisor. The hypervisor-guest
interaction is managed by QEMU through the /dev/kvm ioctl interface. The linux
host assists in the virtualization of storage, networking and display
resources as well as allowing direct hardware passthrough of PCI and USB
devices. Linux memory and cpu management features are used by QEMU/KVM to
enable guests to share those host resources as efficiently as possible.
QEMU is a primary component of KVM based virtualization. The legacy qemu-kvm
program is available for continuity with pre SLES 12 usage, including in
libvirt domain xml references. The QEMU emulator binaries qemu-system-x86_64
and qemu-system-i386 (x86 host) are now the primary programs to use to access
KVM virtualization. When using these programs, the -machine option accel=kvm
(or its alias -enable-kvm), or --accel kvm option must be specified for KVM
acceleration to be used by the guest. Although Xen uses QEMU for
virtualization as well, this document does not identify Xen supported
features.
Libvirt is the preferred means of accessing QEMU/KVM functionality and is
documented elsewhere. This document focuses on the features and direct usage
of QEMU/KVM as provided by the QEMU based packages.
Major QEMU/KVM Supported Features
---------------------------------
- KVM virtualization is accomplished by using the QEMU program in KVM
acceleration mode. KVM acceleration requires that both guest and host have
the same fundamental architecture.
- Guest images created under previous QEMU versions are supported by machine
version compatibilities built into more recent QEMU versions.
- For ease of use, the QEMU program has defaults which represent traditional
usage patterns.
- Guest virtual machine characteristics are specified by a combination of
internal defaults, options provided on the QEMU program command-line, runtime
configurations set via the monitor interfaces and optional config files. The
runtime control of a VM is effected either through the Human Monitor
"Protocol" (HMP), or the JSON based programmatical QEMU Monitor Protocol (QMP)
interface. For QMP details, see qemu-qmp-ref man page.
Since a KVM guest runs in the context of a normal linux process, some types
of execution controls are managed with linux tools.
- Various standard vCPU types are available, along with the ability to specify
individual CPU features visible to the guest.
- QEMU incorporates a SEABIOS based system BIOS and iPXE based PXE ROMs, which
allow boot options common to physical systems, along with other features
tailored to virtualization. Various VGABIOS ROMs, also from the SEABIOS
project, are also included. A UEFI based guest boot environment is also
available by using the firmware provided by the qemu-ovmf-x86_64 package.
- Some QEMU messages have been localized to various languages. This is provided
by the optional qemu-lang package. Keyboard mappings for various nationalities
is also provided.
- Virtual machine lifecycle controls include startup through the system BIOS or
kernel boot, ACPI or legacy based shutdown, execution pausing, the saving and
restoring of machine state or disk state, VM migration to another host, and
miscellaneous controls available through the "monitors" mentioned above.
- Guest execution state may be "moved" in both time (save/restore) and space
(static and live migration). These migrations or save/restore operations can
take place either from certain prior SLES versioned hosts to a SLES 15 SP2
host or between hosts of the same version. Certain other restrictions also
apply.
- Security considerations include seccomp2 based sandboxing, vTPM, privileged
helpers and a security model which allows running guests as a non-root user.
- QEMU/KVM supports a wide range of operating systems within the VMs. See the
online SUSE documentation for supported OS's. Windows guests can optionally be
accelerated with QEMU/KVM provided Hyper-V hypercalls, or with paravirtual
drivers from the SUSE Virtual Machine Driver Pack. Linux includes a number of
paravirtual drivers as well.
- QEMU provides best effort reuse of existing disk images, including those with
systems installed, through geometry probing. Also disk images produced by
other popular virtualization technologies may be imported into QEMU supported
storage formats. These QEMU formats include features which exploit the
benefits of virtualization.
- Memory, cpu and disk space overcommit are possible and can be beneficial when
done responsibly. Additional management of these resources comes in the form
of memory ballooning or hotplug, host KSM, vcpu hot-add, online disk resizing,
trim, discard and hole punching.
- Guest performance is enhanced through the use of virtio devices, various disk
caching modes, network acceleration via the vhost-net kernel module, multi-
queue network transmit capabilities, host transparent huge pages (THP) and
direct hugetlb usage. Physical PCI and USB devices may also be passed through
to the guest, including SR-IOV VF's.
- The guest UI is accessable via GTK, VNC, Spice, and serial (including curses
TUI) interfaces.
- Guest timekeeping is supported in a variety of ways, including a paravirtual
clocksource, and options for the various guest clocks for how to handle the
timeslicing of the guest's execution on the host.
- Guest OS's interact with virtualized hardware including a choice of either
older or more recent x86 system chipsets, system devices and buses, and a
variety of common storage and networking emulated devices. SMBIOS and ACPI
table details can be customized.
- In addition to the para-virtualized devices already mentioned, other devices
and infrastructure designed to avoid virtualization "problem areas" are
available such as SPICE graphics, vmmouse emulation, tablet style pointer
interfaces and virtio based UI interfaces.
- A built-in user-mode network (SLIRP) stack is available.
- Portions of the host file system may be shared with a guest by using virtFS.
- A guest "agent" is available for SLES 15 SP2 KVM guests via the
qemu-guest-agent package. This allows some introspection and control of the
guest OS environment from the host.
QEMU/KVM Technology Previews
----------------------------
- Nested VMX and SVM virtualization is possible.
- All features indicated as not being supported in this document fall under the
Technology Preview definition contained in the main product's release notes.
Noteworthy QEMU/KVM Unsupported Features
----------------------------------------
- Note that some features are unsupported simply due to lack of validation. If
an existing feature is desired, but not marked supported, let SUSE know about
your requirements.
- The TCG "acceleration" mode may be helpful for problem isolation, but
otherwise presents insufficient benefit and stability.
- Use of -cpu host is not supported in all host/guest configurations.
- GlusterFS integration is not enabled.
Deprecated, Superseded, Modified and Dropped Features
-----------------------------------------------------
- http://wiki.qemu-project.org/Features/LegacyRemoval
This website tracks feature deprecation and removal at the upstream
development level. Our qemu package inherits this community direction, but be
aware that we can and will deviate as needed. Those deviations and additional
information can be found in this section. Feature deprecation is also tracked
in Appendix B of the qemu-doc.* files installed with the qemu package.
- When no video adapter is specified, the default used is stdvga. This differs
from the default of prior releases which was cirrus. The cirrus adapter was
considered too outdated to continue to use as the default.
- The deprecated windows drivers (win-virtio-drivers.iso) are no longer provided.
The Virtual Machine Driver Pack is the supported way to get virtio drivers for
Windows guests.
- The use of ",boot=on" for virtio disks is no longer needed since the bios used
supports the virtio block interface directly. In fact, its usage may cause
problems, and is now considered deprecated.
- The use of "?" as a parameter to "-cpu", "-soundhw", "-device", "-M",
"-machine" and "-d" is now considered deprecated. Use "help"
instead.
- The use of "if=scsi" as a parameter to "-drive" does not work anymore with PC
machine types, as it created an obsolete SCSI controller model.
- Passthrough of a host floppy device is now considered deprecated.
- Use of aio=native without direct cache mode also being specified (cache=none,
cache=directsync, or cache.direct=on) is no longer allowed.
- The use of image encryption in qcow and qcow2 formats is now considered
deprecated.
Analysis has shown it to be weak encryption, in addition to suffering from
poor design. Images can easily be converted to a non-encrypted format.
- Use of acpi, boot-opts, and smp-opts in a -readconfig config file are now
considered deprecated. In the future those names will be standardized to
acpitable, boot, and smp respectively.
- When only a partial SMP topology is provided (ie only some of sockets, cores,
threads) the derived guest ABI is not guaranteed to be equivalent in future
versions.
- The previously supported machine types pc-0.12, pc-0.14 and pc-0.15 are now
deprecated.
- These previously supported command line options are now considered deprecated:
-device ide-drive (use ide-hd or ide-cd instead)
-device scsi-disk (use scsi-hd or scsi-cd instead)
-device virtio-blk,scsi= (use virtio-scsi instead)
-device virtio-blk-pci,scsi= (use virtio-scsi instead)
-realtime mlock= (use -overcommit mem-lock= instead)
(the following are early notices of deprecation in a future qemu version)
-M option kernel-irqchip=off
-chardev tty (use serial name instead)
-chardev paraport (use parallel name instead)
-enable-fips (not really helpful - see https://git.qemu.org/?p=qemu.git;a=commit;h=166310299a1e7824bbff17e1f016659d18b4a559 for details)
-spice password=string (use password-string option instead)
-writeconfig (no replacement - never really worked right)
- These previously supported command line options are no longer supported:
<previously mentioned items have been moved to another category>
- These previously supported command line options are no longer recognized:
-balloon (use -device virtio-balloon instead)
-clock
-device ivshmem (use ivshmem-doorbell or ivshmem-plain instead)
-device pc-sysfw (no longer needed)
-device pci-assign, -device kvm-pci-assign (use -device vfio-pci instead)
-display sdl
-no-frame
-nodefconfig (use -no-user-config instead)
-sdl
-virtioconsole (use -device virtconsole instead)
- Specifying a cpu feature with both "+feature/-feature" and "feature=on/off"
will now cause a warning. The current behavior for this combination where
"+feature/-feature" wins over "feature=on/off", will be changed going forward
so that "+feature" and "-feature" will be synonyms for "feature=on" and
"feature=off" respectively.
- The previously supported blkdev-add QMP command has been flagged as lacking
and could possibly change syntax in the future.
- These previously unsupported command line options are now deprecated:
-bt
-no-kvm-pit
- The previously unsupported machine types pc-0.13 and pc-0.14 are now
deprecated.
- The case of specified sockets, cores, and threads not matching the vcpu count
is no longer silently ignored. QEMU now requires that the topology match the
vcpu count.
- These previously unsupported command line options are no longer recognized:
-device at24c-eeprom
-device ccid-card-passthru
-device cfi.pflash01
-device esp
-device exynos4210-ehci-usb
-device fusbh200-ehci-usb
-device icc-bridge
-device q35-pcihost
-device mch
-device mmio_interface
-device smbus-eeprom
-device SUNW,fdtwo
-device sysbus-ahci
-device sysbus-fdc
-device sysbus-ohci
-device tegra2-ehci-usb
-device testdev (use -device pc-testdev instead)
-device virtio-mmio
-device xln,ps7-usb
-enable-hax (use -accel hax instead)
-enable-nesting
-kvm-shadow-memory (use -machine kvm_shadow_mem= instead)
-M mac
-machine mac
-no-kvm-irqchip (use -machine kernel_irqchip=off instead)
-no-kvm-pit
-no-kvm-pit-reinjection (use -global kvm-pit.lost_tick_policy=discard instead)
-nvram
-old-param
-osk
-pcidevice (use -device vfio-pci instead)
-qtest
-semihosting
-tdf (note: mistakenly listed previously as supported)
-xen-create
- The previously unsupported machine types pc-0.10 and pc-0.11 are no longer
recognized.
- These previously supported QMP commands are now deprecated:
change (use blockdev-change-medium or change-vnc-password instead)
cpu-add
migrate-set-cache-size (use migrate-set-parameters instead)
migrate_set_downtime (use migrate-set-parameters instead)
migrate_set_speed (use migrate-set-parameters instead)
query-cpus (use query-cpus-fast instead)
query-events
query-migrate-cache-size (use query-migrate-parameters instead)
- These previously supported monitor commands are now deprecated:
change
cpu-add
migrate_set_downtime
migrate_set_speed
- These previously supported monitor commands are no longer recognized:
cpu_set
pci_add (use device_add instead)
pci_del (use device_del instead)
usb_add (use device_add instead)
usb_del (use device_del instead)
- These previously unsupported monitor command are now deprecated:
acl_add ...
acl_policy ...
acl_remove ...
acl_reset ...
acl_show ...
- These previously unsupported monitor commands are no longer recognized:
host_net_add
host_net_remove
- These previously unsupported QMP commands are now supported under a new name:
x-block-dirty-bitmap-disable (use block-dirty-bitmap-disable instead)
x-block-dirty-bitmap-enable (use block-dirty-bitmap-enable instead)
x-block-dirty-bitmap-merge (use block-dirty-bitmap-merge instead)
x-block-latency-histogram-set (use block-latency-histogram-set instead)
x-blockdev-create (use blockdev-create instead)
x-input-send-event (use input-send-event instead)
- This previously unsupported QMP commands is no longer recognized:
x-nbd-server-add-bitmap
- Due to the lack of migration support (mainly due to ahci interface issues)
and other unstable interface issues, earlier versions of the q35 machine type
are not supported in this release. The current q35 machine type is however now
fully supported.
- Due to upstream's decision to no longer fully support the qed storage format
going forward (since it really provides no benefit over qcow2 and is now no
longer actively maintained upstream), creating qed storage images is no longer
supported and it is highly discouraged to continue using existing qed images.
They should instead be converted to another supported format.
- If KVM Intel nested virtualization is enabled, and the guest is passed the vmx
feature, then live migration or save/restore is prohibited.
QEMU Command-Line and Monitor Syntax and Support
------------------------------------------------
- The QEMU program command-line syntax is as follows:
qemu-system-i386 [options] [disk_image]
qemu-system-x86_64 [options] [disk_image]
Where 'options' are taken from the options listed below, and 'disk_image' is
the file system reference to the x86 guest's primary IDE based hard disk
image. This image as well as those used with -drive or -cdrom, may be in the
raw (no format) or qcow2 storage formats, and may be located in files within
the host filesystem, logical volumes, host physical disks, or network based
storage. Read only media may also be accessed via URL style protocol
specifiers.
Note that as a general rule, as new command line options are added which serve
to replace an older option or interface, you are strongly encouraged to adapt
your usage to the new option. The new option is being introduced to provide
better functionality and usability going forward. In some cases existing
problems or even bugs in older interfaces cannot be fixed due to functional
expectations, but are resolved in the newer interface or option.
This advice includes moving to the most recent machine type (eg pc-i440fx-4.2
instead of pc-i440fx-3.1) if possible.
- The following command line options are supported:
-accel ...
-add-fd ...
-alt-grab
-append ...
-audio-help
-audiodev
-bios ...
-blockdev ...
-boot ...
-cdrom ...
-chardev ..
-cpu ... (all except host)
-ctrl-grab
-d ...
-daemonize
-debugcon ...
-device [isa-serial|isa-parallel|isa-fdc|ide-drive|ide-hd|ide-cd|VGA|
cirrus-vga|rtl8139|usb-hub|usb-ehci|usb-tablet|usb-storage|usb-mouse|
usb-kbd|virtserialport|virtconsole|sga|i82559er|scsi-cd|scsi-hd|
scsi-generic|scsi-disk|scsi-block|pci-serial|pci-serial-2x|
pci-serial-4x|ich9-ahci|piix3-usb-uhci|usb-host|usb-serial|
usb-wacom-tablet|usb-braille|usb-net|pci-ohci|piix4-usb-uhci|i6300esb|
ib700|qxl|qxl-vga|pvpanic|vfio-pci|ivshmem-doorbell|ivshmem-plain|
pci-bridge|megasas-gen2|pc-dimm|floppy|e1000e|ccid-card-emulated|
ccid-card-passthrough|xen-backend|loader|e1000-82540em|vmgenid|
vmcoreinfo|pcie-pci-bridge|ich9-usb-ehci1|ich9-usb-ehci2|
ich9-usb-uhci1|ich9-usb-uhci2|ich9-usb-uhci3|ich9-usb-uhci4|
ich9-usb-uhci5|ich9-usb-uhci6|usb-redir|vhost-scsi|vhost-scsi-pci|
vhost-user-blk|vhost-user-blk-pci|vhost-user-blk-pci-non-transitional|
vhost-user-blk-pci-transitional|vhost-user-scsi|vhost-user-scsi-pci|
vhost-user-scsi-pci-non-transitional|vhost-user-pci-transitional|
vhost-vsock-pci|vhost-vsock-pci-non-transitional|
vhost-vsock-pci-transitional|virtio-balloon-pci|
virtio-balloon-pci-non-transitional|virtio-balloon-pci-transitional|
virtio-blk-pci|virtio-blk-pci-non-transitional|
virtio-blk-pci-transitional|virtio-net-pci|
virtio-net-pci-non-transitional|virtio-net-pci-transitional|
virtio-9p-pci|virtio-9p-pci-non-transitional|
virtio-9p-pci-transitional|virtio-serial-pci|
virtio-serial-pci-non-transitional|virtio-serial-pci-transitional|
virtio-scsi-pci|virtio-scsi-pci-non-transitional|
virtio-scsi-pci-transitional|virtio-rng-pci|
virtio-rng-pci-non-transitional|virtio-rng-pci-transitional|
virtio-input-host-pci|virtio-input-host-pci-non-transitional|
virtio-input-host-pci-transitional|virtio-keyboard-pci|
virtio-mouse-pci|virtio-tablet-pci|virtio-gpu-pci|virtio-crypto-pci|
virtio-vga|vhost-user-fs-pci|vhost-user-gpu|vhost-user-pci-pci|
vhost-user-input|vhost-user-input-pci|vhost-user-vga|virtio-mmio|
virtio-pmem|virtio-pmem-pci|mc146818rtc]
(the following are aliases of these supported devices: ahci|
e1000|virtio-blk|virtio-net|virtio-serial|virtio-balloon|virtio-9p|
virtio-scsi|virtio-rng|virtio-input-host|virtio-keyboard|virtio-mouse|
virtio-tablet|virtio-gpu)
-dfilter range, ...
-display ...
-drive ... (if specified if=[floppy|ide|virtio] and format=[qcow2|raw] and
snapshot=off only)
-echr ...
-enable-fips
-enable-kvm
-fda/-fdb ...
-fsdev ...
-full-screen
-fw_cfg ...
-gdb ...
-global ...
-h
-hda/-hdb/-hdc/-hdd ...
-help
-incoming ...
-initrd ...
-iscsi ...
-k ...
-kernel ...
-loadvm ...
-m ...
-M [help|?|none|pc|pc-0.12|pc-0.14|pc-0.15|pc-i440fx-1.4|pc-i440fx-1.7|
pc-i440fx-2.0|pc-i440fx-2.3|pc-i440fx-2.6|pc-i440fx-2.9|pc-i440fx-2.11|
pc-i440fx-3.1|pc-i440fx-4.2|q35|pc-q35-2.6|pc-q35-2.9|pc-q35-2.11|
pc-q35-3.1|pc-q35-4.2|xenfv|xenpv]
-machine [help|?|none|pc|pc-0.12|pc-0.14|pc-0.15|pc-i440fx-1.4|pc-i440fx-1.7|
pc-i440fx-2.0|pc-i440fx-2.3|pc-440fx-2.6|pc-i440fx-2.9|
pc-i440fx-2.11|pc-i440fx-3.1|pc-i440fx-4.2|q35|pc-q35-2.6|pc-q35-2.9|
pc-q35-2.11|pc-q35-3.1|pc-q35-4.2|xenfv|xenpv]
-mem-path ...
-mem-prealloc
-mon ...
-monitor ...
-msg ...
-name ...
-net [bridge|l2tpv3|nic|none|tap|user] ... (for model= only e1000, rtl8139,
and virtio are supported)
-netdev [bridge|tap|user] ...
-nic ...
-no-acpi
-nodefaults
-no-fd-bootchk
-nographic
-no-hpet
-no-quit
-no-reboot
-no-shutdown
-no-user-config
-numa cpu ...
-numa dist ...
-object ...
-only-migratable
-parallel ...
-pidfile ...
-plugin ...
-qmp ...
-qmp-pretty ...
-readconfig ...
-realtime ...
-rtc ...
-runas ...
-s
-S
-sandbox ...
-seed ...
-serial ...
-show-cursor
-smbios ...
-smp ...
-spice
-tpmdev passthrough ...
-trace ...
-usb
-usbdevice [braile|disk|host|mouse|net|serial|tablet]
-uuid ..
-version
-vga [cirrus|none|qxl|std|xenfb]
-virtfs ...
-vnc ...
-watchdog ...
-watchdog-action ...
-writeconfig ...
-xen-attach ...
-xen-domid ...
-xen-domid-restrict ...
- The following monitor commands are supported:
?
announce_self ...
balloon ...
block_resize ...
boot_set ...
c
change ...
chardev-add ...
chardev-change ...
chardev-remove ...
chardev-send-break ...
client_migrate_info ...
closefd ...
cont
cpu ...
cpu-add ...
delvm ...
device_add ...
device_del ...
drive_add ...
drive_backup ...
drive_del ...
dump_guest_memory ...
eject ...
gdbserver ...
gpa2hpa ...
gpa2hva ...
gva2gpa ...
help
i ...
info ...
loadvm ...
logfile ...
logitem ...
mce ...
memsave ...
migrate ...
migrate_cancel
migrate_continue ...
migrate_incoming
migrate_pause
migrate_recover ...
migrate_set_cache_size ...
migrate_set_capability ...
migrate_set_downtime ...
migrate_set_parameter ...
migrate_set_speed ...
migrate_start_post_copy
mouse_button ...
mouse_move ...
mouse_set ...
nmi ...
o ...
object_add ...
object_del ...
p ...
pci_add ...
pci_del...
pmemsave ...
print ...
q
qemu-io ...
qom-list
qom-set
ringbuf_read ...
ringbuf_write ...
savevm ...
screendump ...
sendkey ...
snapshot_blkdev_internal ...
snapshot_delete_blkdev_internal ...
stop
sum ...
system_powerdown
system_reset
system_wakeup
trace-event ...
watchdog_action ...
x ...
xp ...
- The following QMP commands are supported:
add_client
add-fd
announce-self
balloon
blockdev-add
blockdev-backup
blockdev-change-medium
blockdev-close-tray
blockdev-create
blockdev-del
blockdev-mirror
blockdev-open-tray
blockdev-snapshot
blockdev-snapshot-delete-internal-sync
blockdev-snapshot-internal-sync
blockdev-snapshot-sync
block-commit
block-dirty-bitmap-add
block-dirty-bitmap-clear
block-dirty-bitmap-disable
block-dirty-bitmap-enable
block-dirty-bitmap-merge
block-dirty-bitmap-remove
block-latency-histogram-set
block_passwd
block_resize
block_set_io_throttle
block-set-write-threshold
block_stream
change
change-vnc-password
chardev-add
chardev-change
chardev-remove
chardev-send-break
client_migrate_info
closefd
cont
cpu
cpu-add
device_add
device_del
device-list-properties
dump-guest-memory
eject
expire_password
getfd
human-monitor-command
inject-nmi
input-send-event
job-cancel
job-complete
job-dismiss
job-finalize
job-pause
job-resume
memsave
migrate
migrate_cancel
migrate-continue
migrate-incoming
migrate-pause
migrate-resume
migrate-set-cache-size
migrate-set-capabilities
migrate_set_downtime
migrate_set_speed
migrate-set-parameters
migrate-start-postcopy
object-add
object-del
pmemsave
qmp_capabilities
qom-get
qom-list
qom-list-types
qom-set
query-acpi-ospm-status
query-balloon
query-block
query-block-jobs
query-blockstats
query-chardev
query-chardev-backends
query-command-line-options
query-commands
query-cpu-definitions
query-cpu-model-baseline
query-cpu-model-comparison
query-cpu-model-expansion
query-cpus
query-cpus-fast
query-current-machine
query-display-options
query-dump
query-dump-guest-memory-capability
query-events
query-fdsets
query-gic-capabilities
query-hotpluggable-cpus
query-iothreads
query-jobs
query-kvm
query-machines
query-memdev
query-memory-devices
query-memory-size-summary
query-mice
query-migrate
query-migrate-cache-size
query-migrate-capabilities
query-migrate-parameters
query-name
query-named-block-nodes
query-pci
query-pr-managers
query-qmp-schema
query-rocker
query-rocker-of-dpa-flows
query-rocker-of-dpa-groups
query-rocker-ports
query-rx-filter
query-spice
query-status
query-target
query-tpm
query-tpm-models
query-tpm-types
query-uuid
query-version
query-vnc
query-vnc-servers
query-xen-replication-status
quit
remove-fd
ringbuf-read
ringbuf-write
rtc-reset-reinjection
screendump
send-key
set_link
set_password
set-numa-node
stop
system_powerdown
system_reset
system_wakeup
trace-event-get-state
trace-event-set-state
transaction
watchdog-set-action
xen-load-devices-state
xen-save-devices-state
xen-set-global-dirty-log
- The following command line options are unsupported:
-acpitable ...
-bt ...
-chroot ...
-cpu host
-curses
-device [ipoctal232|i82562|nec-usb-xhci|hda-duplex|hda-output|usb-bot|
lsi53c810a|isa-debug-exit|ne2k_pci|usb-uas|ioh3420|isa-ide|usb-ccid|
pcnet|ich9-intel-hda|dc390|hda-micro|x3130-upstream|isa-cirrus-vga|
pc-testdev|ne2k_isa|isa-vga|cs4231a|gus|vmware-svga|i82801b11-bridge|
i82557a|i82557c|i82557b|i82801|AC97|am53c974|intel-hda|i82558a|
i82558b|usb-audio|i82550|isa-debugcon|sb16|megasas|i82551|
xio3130-downstream|vt82c686b-usb-uhci|tpci200|i82559a|i82559b|i82559c|
isa-applesmc|usb-bt-dongle|adlib|ES1370|lsi53c810|nvme|pci-testdev|
pvscsi|virtio-9p-device|virtio-balloon-device|virtio-blk-device|
virtio-net-device|virtio-rng-device|virtio-scsi-device|
virtio-serial-device|vmxnet3|xen-pci-passthrough|xen-platform|
xen-pvdevice|piix3-ide|piix3-ide-xen|piix3-ide|i8042|sdhci-pci|
secondary-vga|edu|intel_iommu|usb-mtp|e1000-82544gc|e1000-82545em|
pci-bridge-seat|pxb|pxb-pcie|rocker|virtio-input-host-device|
virtio-keyboard-device|virtio-mouse-device|virtio-tablet-device|
hyperv-testdev|generic-sdhci|igd-passthrough-isa-bridge|
ipmi-bmc-extern|ipmi-bmc-sim|isa-ipmi-bt|isa-ipmi-kcs|mptsas1068|
nvdimm|pxb-host|sd-card|virtio-gpu-device|amd-iommu|AMDVI-PCI|
vhost-vsock-device|virtio-crypto-device|vfio-pci-igd-lpc-bridge|
pcie-root-port|qemu-xhci|*-i386-cpu|*-x86_64-cpu|pvrdma|bochs-display|
ramfb|ccid-card-emulated|ccid-card-passthru|kvaser_pci|tpm-crb|
mioe3680_pci|pcm3680_pci|hyperv-synic|vfio-pci-nohotplug|
vfio-platform|xen-bridge|xen-cdrom|xen-disk|ati-vga|cpu-cluster|
intel-iommu|vhost-user-fs-device|tulip|ati-vga|i2c-ddc|pci-ipmi-bt|
pci-ipmi-kcs]
(the following are aliases of these unsupported devices: lsi)
(note that some of these device names represent supported devices and
are used internally, but are not specifyable via -device even though
they appear in the list of devices)
-drive ,if=[scsi|mtd|pflash], snapshot=on, format=[anything besides qcow2 or
raw]
-dtb file
-enable-sync-profile
-g ...
-icount ...
-L ...
-M [isapc|microvm|pc-0.13|pc-1.0|pc-1.1|pc-1.2|pc-1.3|pc-i440fx-1.5|
pc-i440fx-1.6|pc-i440fx-2.1|pc-i440fx-2.2|pc-i440fx-2.4|pc-i440fx-2.5|
pc-i440fx-2.7|pc-i440fx-2.8|pc-i440fx-2.10|pc-i440fx-2.12|pc-i440fx-3.0|
pc-i440fx-4.0|pc-i440fx-4.1|pc-q35-1.4|pc-q35-1.5|pc-q35-1.6|pc-q35-1.7|
pc-q35-2.0|pc-q35-2.1|pc-q35-2.2|pc-q35-2.3|pc-q35-2.4|pc-q35-2.5|
pc-q35-2.7|pc-q35-2.8|pc-q35-2.10|pc-q35-2.12|pc-q35-3.0|pc-q35-4.0|
pc-q35-4.1]
-machine [isapc|microvm|pc-0.13|pc-1.0|pc-1.1|pc-1.2|pc-1.3|pc-i440fx-1.5|
pc-i440fx-1.6|pc-i440fx-2.1|pc-i440fx-2.2|pc-i440fx-2.4|
pc-i440fx-2.5|pc-i440fx-2.7|pc-i440fx-2.8|pc-i440fx-2.10|
pc-i440fx-2.12|pc-i440fx-3.0|pc-i440fx-4.0|pc-i440fx-4.1|pc-q35-1.4|
pc-q35-1.5|pc-q35-1.6|pc-q35-1.7|pc-q35-2.0|pc-q35-2.1|pc-q35-2.2|
pc-q35-2.3|pc-q35-2.4|pc-q35-2.5|pc-q35-2.7|pc-q35-2.8|pc-q35-2.10|
pc-q35-2.12|pc-q35-3.0|pc-q35-4.0|pc-q35-4.1]
-mtdblock file
-net [dump|socket|vde] ...
-netdev [dump|hubport|l2tpv3|socket|vde] ...
-no-kvm
-numa node ...
-option-rom ...
-overcommit ...
-pflash file
-portrait
-preconfig
-prom-env ...
-qtest ...
-qtest-log ...
-rotate
-sd file
-sdl
-set ...
-singlestep
-snapshot
-soundhw ...
-tb-size ...
-tpmdev emulator ...
-vga [cg3|tcx|virtio|vmware]
-win2k-hack
- The following monitor commands are unsupported:
acl_add ...
acl_policy ...
acl_remove ...
acl_reset ...
acl_show ...
block_job_cancel ...
block_job_complete ...
block_job_pause ...
block_job_resume ...
block_job_set_speed ...
block_passwd ...
commit ...
drive_mirror ...
exit_preconfig
expire_password ...
hostfwd_add ...
hostfwd_remove ...
nbd_server_add ...
nbd server_start ...
nbd_server_stop ...
netdev_add
netdev_del ...
pcie_aer_inject_error ...
set_link ...
set_password ...
singlestep ...
snapshot_blkdev ...
stopcapture ...
sync-profile ...
wavcapture ...
x_colo_lost_heartbeat
- The following QMP commands are unsupported:
block-job-cancel
block-job-complete
block-job-pause
block-job-resume
block-job-set-speed
change-backing-file
drive-backup
drive-mirror
dump-skeys
netdev_add
netdev_del
nbd-server-add
nbd-server-start
nbd-server-stop
query-colo-status
query-sev
query-sev-launch-measure
x-blockdev-change
x-blockdev-insert-medium
x-blockdev-remove-medium
x-blockdev-reopen
x-colo-lost-heartbeat
x-debug-block-dirty-bitmap-sha256
x-debug-query-block-graph
x-exit-preconfig
xen-colo-do-checkpoint
xen-set-replication
