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|
[qemu-s390 package document]
SLES 15 SP3 QEMU/KVM RELATED SUPPORT STATEMENTS
Overview
--------
The QEMU based packages included with SLES 15 SP3 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 s390x 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 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 binary qemu-system-s390x is
now the primary program to use to access KVM virtualization. When using this
program, 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.
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.
- QEMU incorporates virtualized, s390 specific, ccw bus based firmware for
booting s390 guests. This firmware is automatically incorporated and
doesn't need to be explicitly referenced.
- 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 ccw firmware or
kernel boot, firmware 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 SP3
host or between hosts of the same version. Certain other restrictions also
apply.
- Security considerations include privileged helpers and a security model which
allows running guests as a non-root user.
- 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 devices may also be passed through to the
guest, including SR-IOV VF's.
- The guest UI is accessable via GTK, VNC, 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.
- 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 SP3 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
----------------------------
- 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.
- 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 as well as
removed features are also tracked in the "QEMU System Emulator User's Guide"
section of the documentation installed with the qemu package.
- 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.
- 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.
- These previously supported command line options are now considered deprecated:
-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)
-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
-device ide-drive (use ide-hd or ide-cd)
-device scsi-disk (use scsi-hd or scsi-cd)
-soundhw (use -device ... instead)
-tb-size
- These previously unsupported command line options are no longer recognized:
-device mmio_interface
-device ramfb
-device vhost-user-vsock-pci-transitional
-device vhost-vsock-pci-transitional
-device virtio-iommu-pci-transitional
-enable-hax
-tdf
-xen-create
- These previously supported QMP commands are now deprecated:
change (use blockdev-change-medium or change-vnc-password instead)
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)
- This previously supported QMP command is no longer recognized:
cpu-add (use device_add instead)
- These previously supported monitor commands are now deprecated:
change
migrate_set_downtime
migrate_set_speed
- These previously supported monitor commands are no longer recognized:
cpu-add (use device_add instead)
pci_add (use device_add instead)
pci_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
usb_add
usb_del
- 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)
- This previously unsupported QMP commands is no longer recognized:
x-nbd-server-add-bitmap
- 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.
QEMU Command-Line and Monitor Syntax and Support
------------------------------------------------
- The QEMU program command-line syntax is as follows:
qemu-system-s390x [options]
Where 'options' are taken from the options listed below.
The images 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
s390-ccw-virtio-5.2 instead of s390-ccw-virtio-4.2) if possible.
- The following command line options are supported:
-accel ...
-add-fd ...
-alt-grab
-append ...
-audio-help
-audiodev
-bios ...
-blockdev ...
-boot ...
-cdrom ...
-chardev ..
-cpu host
-ctrl-grab
-d ...
-daemonize
-debugcon ...
-device
[virtio-net-pci|virtio-blk-pci|virtio-balloon-pci|virtserialport|
virtconsole|virtio-serial-pci|virtio-scsi-pci|scsi-cd|scsi-hd|
scsi-generic|scsi-disk|scsi-block|virtio-rng-pci|pci-bridge|
megasas-gen2|e1000e|e1000|zpci|virtio-gpu-ccw|virtio-keyboard-ccw|
vhost-user-blk-pci|vhost-user-scsi|vhost-user-scsi-pci|
vhost-vsock-ccw|virtio-balloon-ccw|virtio-blk-ccw|vhost-scsi-ccw|
vhost-user-blk|virtio-crypto-ccw|virtio-net-ccw|virtio-rng-ccw|
virtio-scsi-ccw|virtio-serial-ccw|virtio-mouse-ccw|virtio-tablet-ccw|
vfio-pci|virtio-vga|vhost-scsi-pci-non-transitional|
vhost-scsi-pci-transitional|vhost-user-blk-pci-non-transitional|
vhost-user-blk-pci-transitional|vhost-user-scsi-pci-non-transitional|
vhost-user-scsi-pci-transitional|vhost-vsock-pci-non-transitional|
virtio-9p-ccw|virtio-9p-pci-non-transitional|
virtio-9p-pci-transitional|virtio-balloon-pci-non-transitional|
virtio-balloon-pci-transitional|virtio-blk-pci-non-transitional|
virtio-blk-pci-transitional|virtio-input-host-pci-non-transitional|
virtio-input-host-pci-transitional|virtio-net-pci-non-transitional|
virtio-net-pci-transitional|virtio-rng-pci-non-transitional|
virtio-rng-pci-transitional|virtio-scsi-pci-non-transitional|
virtio-scsi-pci-transitional|virtio-serial-pci-non-transitional|
virtio-serial-pci-transitional|vhost-user-fs-pci|vhost-user-gpu|
vhost-user-pci-pci|vhost-user-input|vhost-user-input-pci|
vhost-user-vga]
(the following are aliases of these supported devices: virtio-blk|
virtio-input-host|virtio-keyboard|virtio-mouse|virtio-tablet|
virtio-gpu|virtio-9p|virtio-net|virtio-serial|virtio-balloon|
virtio-scsi|virtio-rng)
-dfilter range, ...
-display ...
-drive
... (if specified if=[virtio] and format=[qcow2|raw] and
snapshot=off only)
-echr ...
-enable-fips
-enable-kvm
-fsdev ...
-full-screen
-fw_cfg ...
-gdb ...
-global ...
-h
-help
-incoming ...
-initrd ...
-iscsi ...
-k ...
-kernel ...
-loadvm ...
-m ...
-M
[help|?|none|s390-ccw-virtio|s390-ccw-virtio-2.6|s390-ccw-virtio-2.9|
s390-ccw-virtio-2.11|s390-ccw-virtio-3.1|s390-ccw-virtio-4.2|
s390-ccw-virtio-5.2]
-machine
[help|?|none|s390-ccw-virtio|s390-ccw-virtio-2.6|s390-ccw-virtio-2.9|
s390-ccw-virtio-2.11|s390-ccw-virtio-3.1|s390-ccw-virtio-4.2|
s390-ccw-virtio-5.2]
-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 ...
-nodefaults
-nographic
-no-quit
-no-reboot
-no-shutdown
-no-user-config
-object ...
-only-migratable
-parallel ...
-pidfile ...
-plugin ...
-qmp ...
-qmp-pretty ...
-readconfig ...
-realtime ...
-rtc ...
-runas ...
-s
-S
-sandbox ...
-seed ...
-serial ...
-show-cursor
-smp ...
-trace ...
-uuid ..
-version
-vga [none|qxl|std]
-virtfs ...
-vnc ...
-watchdog ...
-watchdog-action ...
-writeconfig ...
- 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 ...
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 ...
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-export-add
block-export-del
block-latency-histogram-set
block_passwd
block_resize
block_set_io_throttle
block-set-write-threshold
block_stream
calc-dirty-rate
change
change-vnc-password
chardev-add
chardev-change
chardev-remove
chardev-send-break
client_migrate_info
closefd
cont
cpu
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-exports
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-dirty-rate
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-uuid
query-version
query-vnc
query-vnc-servers
query-xen-replication-status
quit
remove-fd
ringbuf-read
ringbuf-write
screendump
send-key
set_link
set_password
stop
system_powerdown
system_reset
system_wakeup
trace-event-get-state
trace-event-set-state
transaction
watchdog-set-action
- The following command line options are unsupported:
-acpitable ...
-chroot ...
-cpu ... (all except host)
-curses
-device
[AC97|adlib|am53c974|amd-iommu|AMDVI-PCI|ccid-card-emulated|
ccid-card-passthrough|cirrus-vga|cs4231a|dc390|diag288|e1000-82544gc|
e1000-82545em|edu|ES1370|floppy|generic-sdhci|gus|hda-duplex|
hda-micro|hda-output|hyperv-testdev|*-i386-cpu|i8042|i82550|i82551|
i82557a|i82557b|i82557c|i82558a|i82558b|i82559a|i82559b|i82559c|
i82562|i82801|i82801b11-bridge|ib700|ich9-intel-hda|ich9-usb-ehci1|
ich9-usb-ehci2|ich9-usb-uhci1|ich9-usb-uhci2|ich9-usb-uhci3|
ich9-usb-uhci4|ich9-usb-uhci5|ich9-usb-uhci6|ide-cd|ide-drive|ide-hd|
igd-passthrough-isa-bridge|intel-hda|intel_iommu|ioh3420|
ipmi-bmc-extern|ipmi-bmc-sim|ipoctal232|isa-applesmc|isa-cirrus-vga|
isa-debugcon|isa-debug-exit|isa-fdc|isa-ide|isa-ipmi-bt|isa-ipmi-kcs|
isa-parallel|isa-serial|isa-vga|lsi53c810|lsi53c810a|max-s390x-cpu|
megasas|mptsas1068|ne2k_isa|ne2k_pci|nec-usb-xhci|nvdimm|nvme|pc-dimm|
pci-testdev|pcnet|pc-testdev|piix3-ide|piix3-ide|piix3-ide-xen|
piix4-usb-uhci|pvscsi|pxb|pxb-host|pxb-pcie|qemu-s390-cpu|rocker|
s390-flic|s390-flic-qemu|s390-ipl|s390-pcihost|
s390-sclp-event-facility|s390-skeys-qemu|sb16|sclp|sclpconsole|
sclp-cpu-hotplug|sclplmconsole|sclp-memory-hotplug-dev|sclpquiesce|
sd-card|sdhci-pci|secondary-vga|sga|smbus-eeprom|tpci200|usb-audio|
usb-bot|usb-ccid|usb-mtp|usb-uas|vfio-ap|vfio-pci-nohotplug|
virtio-9p-device|virtual-css-bridge|vmcoreinfo|vmgenid|vmware-svga|
vmxnet3|vt82c686b-usb-uhci|x3130-upstream|*-x86_64-cpu|xen-backend|
xen-pci-passthrough|xen-platform|xen-pvdevice|xio3130-downstream|
z10BC.2-base-s390x-cpu|z10BC.2-s390x-cpu|z10BC-base-s390x-cpu|
z10BC-s390x-cpu|z10EC.2-base-s390x-cpu|z10EC.2-s390x-cpu|
z10EC.3-base-s390x-cpu|z10EC.3-s390x-cpu|z10EC-base-s390x-cpu|
z10EC-s390x-cpu|z114-base-s390x-cpu|z114-s390x-cpu|
z13.2-base-s390x-cpu|z13.2-s390x-cpu|z13-base-s390x-cpu|z13-s390x-cpu|
z13s-base-s390x-cpu|z13s-s390x-cpu|z196.2-base-s390x-cpu|
z196.2-s390x-cpu|z196-base-s390x-cpu|z196-s390x-cpu|
z800-base-s390x-cpu|z800-s390x-cpu|z890.2-base-s390x-cpu|
z890.2-s390x-cpu|z890.3-base-s390x-cpu|z890.3-s390x-cpu|
z890-base-s390x-cpu|z890-s390x-cpu|z900.2-base-s390x-cpu|
z900.2-s390x-cpu|z900.3-base-s390x-cpu|z900.3-s390x-cpu|
z900-base-s390x-cpu|z900-s390x-cpu|z990.2-base-s390x-cpu|
z990.2-s390x-cpu|z990.3-base-s390x-cpu|z990.3-s390x-cpu|
z990.4-base-s390x-cpu|z990.4-s390x-cpu|z990.5-base-s390x-cpu|
z990.5-s390x-cpu|z990-base-s390x-cpu|z990-s390x-cpu|
z9BC.2-base-s390x-cpu|z9BC.2-s390x-cpu|z9BC-base-s390x-cpu|
z9BC-s390x-cpu|z9EC.2-base-s390x-cpu|z9EC.2-s390x-cpu|
z9EC.3-base-s390x-cpu|z9EC.3-s390x-cpu|z9EC-base-s390x-cpu|
z9EC-s390x-cpu|z14ZR1-base-s390x-cpu|z14ZR1-s390x-cpu|
zBC12-base-s390x-cpu|zBC12-s390x-cpu|zEC12.2-base-s390x-cpu|
zEC12.2-s390x-cpu|zEC12-base-s390x-cpu|zEC12-s390x-cpu|cpu-cluster|
z14.2-base-s390x-cpu|z14.2-s390x-cpu|vhost-user-fs-device|
virtio-iommu-device|virtio-iommu-pci|
virtio-iommu-pci-non-transitional|vhost-user-vsock-device|
vhost-user-vsock-pci|vhost-user-vsock-pci-non-transitional|
vhost-user-fs-ccw]
(the following are aliases of these unsupported devices: lsi|
ahci|e1000-82540em|vfio-ccw)
(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
-fda/-fdb ...
-g ...
-hda/-hdb/-hdc/-hdd ...
-icount ...
-L ...
-M
[s390-ccw-virtio-2.4|s390-ccw-virtio-2.5|s390-ccw-virtio-2.7|
s390-ccw-virtio-2.8|s390-ccw-virtio-2.10|s390-ccw-virtio-2.12|
s390-ccw-virtio-3.0|s390-ccw-virtio-4.0|s390-ccw-virtio-4.1|
s390-ccw-virtio-5.0|s390-ccw-virtio-5.1]
-machine
[s390-ccw-virtio-2.4|s390-ccw-virtio-2.5|s390-ccw-virtio-2.7|
s390-ccw-virtio-2.8|s390-ccw-virtio-2.10|s390-ccw-virtio-2.12|
s390-ccw-virtio-3.0|s390-ccw-virtio-4.0|s390-ccw-virtio-4.1|
s390-ccw-virtio-5.0|s390-ccw-virtio-5.1]
-mtdblock file
-net [dump|socket|vde] ...
-netdev [dump|hubport|l2tpv3|socket|vde] ...
-no-acpi
-no-fd-bootchk
-no-hpet
-no-kvm
-no-kvm-irqchip
-no-kvm-pit
-no-kvm-pit-reinjection
-numa cpu ...
-numa dist ...
-numa node ...
-option-rom ...
-overcommit ...
-pflash file
-portrait
-preconfig
-prom-env ...
-qtest ...
-qtest-log ...
-rotate
-sd file
-sdl
-set ...
-singlestep
-smbios ...
-snapshot
-soundhw ...
-spice
-tb-size ...
-tdf
-tpmdev emulator ...
-tpmdev passthrough ...
-usb
-usbdevice [braile|disk|host|mouse|net|serial|tablet]
-vga [cg3|tcx|virtio|cirrus|xenfb|vmware]
-win2k-hack
-xen-attach ...
-xen-domid ...
-xen-domid-restrict ...
- 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 ...
replay_break ...
replay_delete_break
replay_seek ...
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-tpm
query-tpm-models
query-tpm-types
replay_break
replay_delete_break
replay_seek
x-blockdev-amend
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-load-devices-state
xen-save-devices-state
xen-set-global-dirty-log
xen-set-replication
|
