1 `acpi`: `<boolean>` ('default =' `1`)::
5 `agent`: `[enabled=]<1|0> [,fstrim_cloned_disks=<1|0>] [,type=<virtio|isa>]` ::
7 Enable/disable communication with the Qemu Guest Agent and its properties.
9 `enabled`=`<boolean>` ('default =' `0`);;
11 Enable/disable communication with a Qemu Guest Agent (QGA) running in the VM.
13 `fstrim_cloned_disks`=`<boolean>` ('default =' `0`);;
15 Run fstrim after moving a disk or migrating the VM.
17 `type`=`<isa | virtio>` ('default =' `virtio`);;
21 `arch`: `<aarch64 | x86_64>` ::
23 Virtual processor architecture. Defaults to the host.
27 Arbitrary arguments passed to kvm, for example:
29 args: -no-reboot -no-hpet
31 NOTE: this option is for experts only.
33 `audio0`: `device=<ich9-intel-hda|intel-hda|AC97> [,driver=<spice|none>]` ::
35 Configure a audio device, useful in combination with QXL/Spice.
37 `device`=`<AC97 | ich9-intel-hda | intel-hda>` ;;
39 Configure an audio device.
41 `driver`=`<none | spice>` ('default =' `spice`);;
43 Driver backend for the audio device.
45 `autostart`: `<boolean>` ('default =' `0`)::
47 Automatic restart after crash (currently ignored).
49 `balloon`: `<integer> (0 - N)` ::
51 Amount of target RAM for the VM in MB. Using zero disables the ballon driver.
53 `bios`: `<ovmf | seabios>` ('default =' `seabios`)::
55 Select BIOS implementation.
57 `boot`: `[[legacy=]<[acdn]{1,4}>] [,order=<device[;device...]>]` ::
59 Specify guest boot order. Use the 'order=' sub-property as usage with no key or 'legacy=' is deprecated.
61 `legacy`=`<[acdn]{1,4}>` ('default =' `cdn`);;
63 Boot on floppy (a), hard disk (c), CD-ROM (d), or network (n). Deprecated, use 'order=' instead.
65 `order`=`<device[;device...]>` ;;
67 The guest will attempt to boot from devices in the order they appear here.
69 Disks, optical drives and passed-through storage USB devices will be directly
70 booted from, NICs will load PXE, and PCIe devices will either behave like disks
71 (e.g. NVMe) or load an option ROM (e.g. RAID controller, hardware NIC).
73 Note that only devices in this list will be marked as bootable and thus loaded
74 by the guest firmware (BIOS/UEFI). If you require multiple disks for booting
75 (e.g. software-raid), you need to specify all of them here.
77 Overrides the deprecated 'legacy=[acdn]*' value when given.
79 `bootdisk`: `(ide|sata|scsi|virtio)\d+` ::
81 Enable booting from specified disk. Deprecated: Use 'boot: order=foo;bar' instead.
83 `cdrom`: `<volume>` ::
85 This is an alias for option -ide2
87 `cicustom`: `[meta=<volume>] [,network=<volume>] [,user=<volume>] [,vendor=<volume>]` ::
89 cloud-init: Specify custom files to replace the automatically generated ones at start.
93 Specify a custom file containing all meta data passed to the VM via"
94 ." cloud-init. This is provider specific meaning configdrive2 and nocloud differ.
96 `network`=`<volume>` ;;
98 Specify a custom file containing all network data passed to the VM via cloud-init.
102 Specify a custom file containing all user data passed to the VM via cloud-init.
104 `vendor`=`<volume>` ;;
106 Specify a custom file containing all vendor data passed to the VM via cloud-init.
108 `cipassword`: `<string>` ::
110 cloud-init: Password to assign the user. Using this is generally not recommended. Use ssh keys instead. Also note that older cloud-init versions do not support hashed passwords.
112 `citype`: `<configdrive2 | nocloud | opennebula>` ::
114 Specifies the cloud-init configuration format. The default depends on the configured operating system type (`ostype`. We use the `nocloud` format for Linux, and `configdrive2` for windows.
116 `ciuser`: `<string>` ::
118 cloud-init: User name to change ssh keys and password for instead of the image's configured default user.
120 `cores`: `<integer> (1 - N)` ('default =' `1`)::
122 The number of cores per socket.
124 `cpu`: `[[cputype=]<string>] [,flags=<+FLAG[;-FLAG...]>] [,hidden=<1|0>] [,hv-vendor-id=<vendor-id>] [,phys-bits=<8-64|host>] [,reported-model=<enum>]` ::
128 `cputype`=`<string>` ('default =' `kvm64`);;
130 Emulated CPU type. Can be default or custom name (custom model names must be prefixed with 'custom-').
132 `flags`=`<+FLAG[;-FLAG...]>` ;;
134 List of additional CPU flags separated by ';'. Use '+FLAG' to enable, '-FLAG' to disable a flag. Custom CPU models can specify any flag supported by QEMU/KVM, VM-specific flags must be from the following set for security reasons: pcid, spec-ctrl, ibpb, ssbd, virt-ssbd, amd-ssbd, amd-no-ssb, pdpe1gb, md-clear, hv-tlbflush, hv-evmcs, aes
136 `hidden`=`<boolean>` ('default =' `0`);;
138 Do not identify as a KVM virtual machine.
140 `hv-vendor-id`=`<vendor-id>` ;;
142 The Hyper-V vendor ID. Some drivers or programs inside Windows guests need a specific ID.
144 `phys-bits`=`<8-64|host>` ;;
146 The physical memory address bits that are reported to the guest OS. Should be smaller or equal to the host's. Set to 'host' to use value from host CPU, but note that doing so will break live migration to CPUs with other values.
148 `reported-model`=`<486 | Broadwell | Broadwell-IBRS | Broadwell-noTSX | Broadwell-noTSX-IBRS | Cascadelake-Server | Cascadelake-Server-noTSX | Conroe | EPYC | EPYC-IBPB | EPYC-Milan | EPYC-Rome | Haswell | Haswell-IBRS | Haswell-noTSX | Haswell-noTSX-IBRS | Icelake-Client | Icelake-Client-noTSX | Icelake-Server | Icelake-Server-noTSX | IvyBridge | IvyBridge-IBRS | KnightsMill | Nehalem | Nehalem-IBRS | Opteron_G1 | Opteron_G2 | Opteron_G3 | Opteron_G4 | Opteron_G5 | Penryn | SandyBridge | SandyBridge-IBRS | Skylake-Client | Skylake-Client-IBRS | Skylake-Client-noTSX-IBRS | Skylake-Server | Skylake-Server-IBRS | Skylake-Server-noTSX-IBRS | Westmere | Westmere-IBRS | athlon | core2duo | coreduo | host | kvm32 | kvm64 | max | pentium | pentium2 | pentium3 | phenom | qemu32 | qemu64>` ('default =' `kvm64`);;
150 CPU model and vendor to report to the guest. Must be a QEMU/KVM supported model. Only valid for custom CPU model definitions, default models will always report themselves to the guest OS.
152 `cpulimit`: `<number> (0 - 128)` ('default =' `0`)::
156 NOTE: If the computer has 2 CPUs, it has total of '2' CPU time. Value '0' indicates no CPU limit.
158 `cpuunits`: `<integer> (1 - 262144)` ('default =' `cgroup v1: 1024, cgroup v2: 100`)::
160 CPU weight for a VM. Argument is used in the kernel fair scheduler. The larger the number is, the more CPU time this VM gets. Number is relative to weights of all the other running VMs.
162 `description`: `<string>` ::
164 Description for the VM. Shown in the web-interface VM's summary. This is saved as comment inside the configuration file.
166 `efidisk0`: `[file=]<volume> [,efitype=<2m|4m>] [,format=<enum>] [,pre-enrolled-keys=<1|0>] [,size=<DiskSize>]` ::
168 Configure a Disk for storing EFI vars.
170 `efitype`=`<2m | 4m>` ('default =' `2m`);;
172 Size and type of the OVMF EFI vars. '4m' is newer and recommended, and required for Secure Boot. For backwards compatibility, '2m' is used if not otherwise specified.
176 The drive's backing volume.
178 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
180 The drive's backing file's data format.
182 `pre-enrolled-keys`=`<boolean>` ('default =' `0`);;
184 Use am EFI vars template with distribution-specific and Microsoft Standard keys enrolled, if used with 'efitype=4m'. Note that this will enable Secure Boot by default, though it can still be turned off from within the VM.
186 `size`=`<DiskSize>` ;;
188 Disk size. This is purely informational and has no effect.
190 `freeze`: `<boolean>` ::
192 Freeze CPU at startup (use 'c' monitor command to start execution).
194 `hookscript`: `<string>` ::
196 Script that will be executed during various steps in the vms lifetime.
198 `hostpci[n]`: `[host=]<HOSTPCIID[;HOSTPCIID2...]> [,device-id=<hex id>] [,legacy-igd=<1|0>] [,mdev=<string>] [,pcie=<1|0>] [,rombar=<1|0>] [,romfile=<string>] [,sub-device-id=<hex id>] [,sub-vendor-id=<hex id>] [,vendor-id=<hex id>] [,x-vga=<1|0>]` ::
200 Map host PCI devices into guest.
202 NOTE: This option allows direct access to host hardware. So it is no longer
203 possible to migrate such machines - use with special care.
205 CAUTION: Experimental! User reported problems with this option.
207 `device-id`=`<hex id>` ;;
209 Override PCI device ID visible to guest
211 `host`=`<HOSTPCIID[;HOSTPCIID2...]>` ;;
213 Host PCI device pass through. The PCI ID of a host's PCI device or a list
214 of PCI virtual functions of the host. HOSTPCIID syntax is:
216 'bus:dev.func' (hexadecimal numbers)
218 You can us the 'lspci' command to list existing PCI devices.
220 `legacy-igd`=`<boolean>` ('default =' `0`);;
222 Pass this device in legacy IGD mode, making it the primary and exclusive graphics device in the VM. Requires 'pc-i440fx' machine type and VGA set to 'none'.
226 The type of mediated device to use.
227 An instance of this type will be created on startup of the VM and
228 will be cleaned up when the VM stops.
230 `pcie`=`<boolean>` ('default =' `0`);;
232 Choose the PCI-express bus (needs the 'q35' machine model).
234 `rombar`=`<boolean>` ('default =' `1`);;
236 Specify whether or not the device's ROM will be visible in the guest's memory map.
238 `romfile`=`<string>` ;;
240 Custom pci device rom filename (must be located in /usr/share/kvm/).
242 `sub-device-id`=`<hex id>` ;;
244 Override PCI subsystem device ID visible to guest
246 `sub-vendor-id`=`<hex id>` ;;
248 Override PCI subsystem vendor ID visible to guest
250 `vendor-id`=`<hex id>` ;;
252 Override PCI vendor ID visible to guest
254 `x-vga`=`<boolean>` ('default =' `0`);;
256 Enable vfio-vga device support.
258 `hotplug`: `<string>` ('default =' `network,disk,usb`)::
260 Selectively enable hotplug features. This is a comma separated list of hotplug features: 'network', 'disk', 'cpu', 'memory' and 'usb'. Use '0' to disable hotplug completely. Using '1' as value is an alias for the default `network,disk,usb`.
262 `hugepages`: `<1024 | 2 | any>` ::
264 Enable/disable hugepages memory.
266 `ide[n]`: `[file=]<volume> [,aio=<native|threads|io_uring>] [,backup=<1|0>] [,bps=<bps>] [,bps_max_length=<seconds>] [,bps_rd=<bps>] [,bps_rd_max_length=<seconds>] [,bps_wr=<bps>] [,bps_wr_max_length=<seconds>] [,cache=<enum>] [,cyls=<integer>] [,detect_zeroes=<1|0>] [,discard=<ignore|on>] [,format=<enum>] [,heads=<integer>] [,iops=<iops>] [,iops_max=<iops>] [,iops_max_length=<seconds>] [,iops_rd=<iops>] [,iops_rd_max=<iops>] [,iops_rd_max_length=<seconds>] [,iops_wr=<iops>] [,iops_wr_max=<iops>] [,iops_wr_max_length=<seconds>] [,mbps=<mbps>] [,mbps_max=<mbps>] [,mbps_rd=<mbps>] [,mbps_rd_max=<mbps>] [,mbps_wr=<mbps>] [,mbps_wr_max=<mbps>] [,media=<cdrom|disk>] [,model=<model>] [,replicate=<1|0>] [,rerror=<ignore|report|stop>] [,secs=<integer>] [,serial=<serial>] [,shared=<1|0>] [,size=<DiskSize>] [,snapshot=<1|0>] [,ssd=<1|0>] [,trans=<none|lba|auto>] [,werror=<enum>] [,wwn=<wwn>]` ::
268 Use volume as IDE hard disk or CD-ROM (n is 0 to 3).
270 `aio`=`<io_uring | native | threads>` ;;
274 `backup`=`<boolean>` ;;
276 Whether the drive should be included when making backups.
280 Maximum r/w speed in bytes per second.
282 `bps_max_length`=`<seconds>` ;;
284 Maximum length of I/O bursts in seconds.
288 Maximum read speed in bytes per second.
290 `bps_rd_max_length`=`<seconds>` ;;
292 Maximum length of read I/O bursts in seconds.
296 Maximum write speed in bytes per second.
298 `bps_wr_max_length`=`<seconds>` ;;
300 Maximum length of write I/O bursts in seconds.
302 `cache`=`<directsync | none | unsafe | writeback | writethrough>` ;;
304 The drive's cache mode
306 `cyls`=`<integer>` ;;
308 Force the drive's physical geometry to have a specific cylinder count.
310 `detect_zeroes`=`<boolean>` ;;
312 Controls whether to detect and try to optimize writes of zeroes.
314 `discard`=`<ignore | on>` ;;
316 Controls whether to pass discard/trim requests to the underlying storage.
320 The drive's backing volume.
322 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
324 The drive's backing file's data format.
326 `heads`=`<integer>` ;;
328 Force the drive's physical geometry to have a specific head count.
332 Maximum r/w I/O in operations per second.
334 `iops_max`=`<iops>` ;;
336 Maximum unthrottled r/w I/O pool in operations per second.
338 `iops_max_length`=`<seconds>` ;;
340 Maximum length of I/O bursts in seconds.
342 `iops_rd`=`<iops>` ;;
344 Maximum read I/O in operations per second.
346 `iops_rd_max`=`<iops>` ;;
348 Maximum unthrottled read I/O pool in operations per second.
350 `iops_rd_max_length`=`<seconds>` ;;
352 Maximum length of read I/O bursts in seconds.
354 `iops_wr`=`<iops>` ;;
356 Maximum write I/O in operations per second.
358 `iops_wr_max`=`<iops>` ;;
360 Maximum unthrottled write I/O pool in operations per second.
362 `iops_wr_max_length`=`<seconds>` ;;
364 Maximum length of write I/O bursts in seconds.
368 Maximum r/w speed in megabytes per second.
370 `mbps_max`=`<mbps>` ;;
372 Maximum unthrottled r/w pool in megabytes per second.
374 `mbps_rd`=`<mbps>` ;;
376 Maximum read speed in megabytes per second.
378 `mbps_rd_max`=`<mbps>` ;;
380 Maximum unthrottled read pool in megabytes per second.
382 `mbps_wr`=`<mbps>` ;;
384 Maximum write speed in megabytes per second.
386 `mbps_wr_max`=`<mbps>` ;;
388 Maximum unthrottled write pool in megabytes per second.
390 `media`=`<cdrom | disk>` ('default =' `disk`);;
392 The drive's media type.
396 The drive's reported model name, url-encoded, up to 40 bytes long.
398 `replicate`=`<boolean>` ('default =' `1`);;
400 Whether the drive should considered for replication jobs.
402 `rerror`=`<ignore | report | stop>` ;;
406 `secs`=`<integer>` ;;
408 Force the drive's physical geometry to have a specific sector count.
410 `serial`=`<serial>` ;;
412 The drive's reported serial number, url-encoded, up to 20 bytes long.
414 `shared`=`<boolean>` ('default =' `0`);;
416 Mark this locally-managed volume as available on all nodes.
418 WARNING: This option does not share the volume automatically, it assumes it is shared already!
420 `size`=`<DiskSize>` ;;
422 Disk size. This is purely informational and has no effect.
424 `snapshot`=`<boolean>` ;;
426 Controls qemu's snapshot mode feature. If activated, changes made to the disk are temporary and will be discarded when the VM is shutdown.
430 Whether to expose this drive as an SSD, rather than a rotational hard disk.
432 `trans`=`<auto | lba | none>` ;;
434 Force disk geometry bios translation mode.
436 `werror`=`<enospc | ignore | report | stop>` ;;
442 The drive's worldwide name, encoded as 16 bytes hex string, prefixed by '0x'.
444 `ipconfig[n]`: `[gw=<GatewayIPv4>] [,gw6=<GatewayIPv6>] [,ip=<IPv4Format/CIDR>] [,ip6=<IPv6Format/CIDR>]` ::
446 cloud-init: Specify IP addresses and gateways for the corresponding interface.
448 IP addresses use CIDR notation, gateways are optional but need an IP of the same type specified.
450 The special string 'dhcp' can be used for IP addresses to use DHCP, in which case no explicit
451 gateway should be provided.
452 For IPv6 the special string 'auto' can be used to use stateless autoconfiguration. This requires
453 cloud-init 19.4 or newer.
455 If cloud-init is enabled and neither an IPv4 nor an IPv6 address is specified, it defaults to using
458 `gw`=`<GatewayIPv4>` ;;
460 Default gateway for IPv4 traffic.
462 NOTE: Requires option(s): `ip`
464 `gw6`=`<GatewayIPv6>` ;;
466 Default gateway for IPv6 traffic.
468 NOTE: Requires option(s): `ip6`
470 `ip`=`<IPv4Format/CIDR>` ('default =' `dhcp`);;
472 IPv4 address in CIDR format.
474 `ip6`=`<IPv6Format/CIDR>` ('default =' `dhcp`);;
476 IPv6 address in CIDR format.
478 `ivshmem`: `size=<integer> [,name=<string>]` ::
480 Inter-VM shared memory. Useful for direct communication between VMs, or to the host.
484 The name of the file. Will be prefixed with 'pve-shm-'. Default is the VMID. Will be deleted when the VM is stopped.
486 `size`=`<integer> (1 - N)` ;;
488 The size of the file in MB.
490 `keephugepages`: `<boolean>` ('default =' `0`)::
492 Use together with hugepages. If enabled, hugepages will not not be deleted after VM shutdown and can be used for subsequent starts.
494 `keyboard`: `<da | de | de-ch | en-gb | en-us | es | fi | fr | fr-be | fr-ca | fr-ch | hu | is | it | ja | lt | mk | nl | no | pl | pt | pt-br | sl | sv | tr>` ::
496 Keyboard layout for VNC server. This option is generally not required and is often better handled from within the guest OS.
498 `kvm`: `<boolean>` ('default =' `1`)::
500 Enable/disable KVM hardware virtualization.
502 `localtime`: `<boolean>` ::
504 Set the real time clock (RTC) to local time. This is enabled by default if the `ostype` indicates a Microsoft Windows OS.
506 `lock`: `<backup | clone | create | migrate | rollback | snapshot | snapshot-delete | suspended | suspending>` ::
510 `machine`: `(pc|pc(-i440fx)?-\d+(\.\d+)+(\+pve\d+)?(\.pxe)?|q35|pc-q35-\d+(\.\d+)+(\+pve\d+)?(\.pxe)?|virt(?:-\d+(\.\d+)+)?(\+pve\d+)?)` ::
512 Specifies the Qemu machine type.
514 `memory`: `<integer> (16 - N)` ('default =' `512`)::
516 Amount of RAM for the VM in MB. This is the maximum available memory when you use the balloon device.
518 `migrate_downtime`: `<number> (0 - N)` ('default =' `0.1`)::
520 Set maximum tolerated downtime (in seconds) for migrations.
522 `migrate_speed`: `<integer> (0 - N)` ('default =' `0`)::
524 Set maximum speed (in MB/s) for migrations. Value 0 is no limit.
526 `name`: `<string>` ::
528 Set a name for the VM. Only used on the configuration web interface.
530 `nameserver`: `<string>` ::
532 cloud-init: Sets DNS server IP address for a container. Create will automatically use the setting from the host if neither searchdomain nor nameserver are set.
534 `net[n]`: `[model=]<enum> [,bridge=<bridge>] [,firewall=<1|0>] [,link_down=<1|0>] [,macaddr=<XX:XX:XX:XX:XX:XX>] [,mtu=<integer>] [,queues=<integer>] [,rate=<number>] [,tag=<integer>] [,trunks=<vlanid[;vlanid...]>] [,<model>=<macaddr>]` ::
536 Specify network devices.
538 `bridge`=`<bridge>` ;;
540 Bridge to attach the network device to. The Proxmox VE standard bridge
543 If you do not specify a bridge, we create a kvm user (NATed) network
544 device, which provides DHCP and DNS services. The following addresses
551 The DHCP server assign addresses to the guest starting from 10.0.2.15.
553 `firewall`=`<boolean>` ;;
555 Whether this interface should be protected by the firewall.
557 `link_down`=`<boolean>` ;;
559 Whether this interface should be disconnected (like pulling the plug).
561 `macaddr`=`<XX:XX:XX:XX:XX:XX>` ;;
563 A common MAC address with the I/G (Individual/Group) bit not set.
565 `model`=`<e1000 | e1000-82540em | e1000-82544gc | e1000-82545em | e1000e | i82551 | i82557b | i82559er | ne2k_isa | ne2k_pci | pcnet | rtl8139 | virtio | vmxnet3>` ;;
567 Network Card Model. The 'virtio' model provides the best performance with very low CPU overhead. If your guest does not support this driver, it is usually best to use 'e1000'.
569 `mtu`=`<integer> (1 - 65520)` ;;
571 Force MTU, for VirtIO only. Set to '1' to use the bridge MTU
573 `queues`=`<integer> (0 - 16)` ;;
575 Number of packet queues to be used on the device.
577 `rate`=`<number> (0 - N)` ;;
579 Rate limit in mbps (megabytes per second) as floating point number.
581 `tag`=`<integer> (1 - 4094)` ;;
583 VLAN tag to apply to packets on this interface.
585 `trunks`=`<vlanid[;vlanid...]>` ;;
587 VLAN trunks to pass through this interface.
589 `numa`: `<boolean>` ('default =' `0`)::
593 `numa[n]`: `cpus=<id[-id];...> [,hostnodes=<id[-id];...>] [,memory=<number>] [,policy=<preferred|bind|interleave>]` ::
597 `cpus`=`<id[-id];...>` ;;
599 CPUs accessing this NUMA node.
601 `hostnodes`=`<id[-id];...>` ;;
603 Host NUMA nodes to use.
605 `memory`=`<number>` ;;
607 Amount of memory this NUMA node provides.
609 `policy`=`<bind | interleave | preferred>` ;;
611 NUMA allocation policy.
613 `onboot`: `<boolean>` ('default =' `0`)::
615 Specifies whether a VM will be started during system bootup.
617 `ostype`: `<l24 | l26 | other | solaris | w2k | w2k3 | w2k8 | win10 | win11 | win7 | win8 | wvista | wxp>` ::
619 Specify guest operating system. This is used to enable special
620 optimization/features for specific operating systems:
623 other;; unspecified OS
624 wxp;; Microsoft Windows XP
625 w2k;; Microsoft Windows 2000
626 w2k3;; Microsoft Windows 2003
627 w2k8;; Microsoft Windows 2008
628 wvista;; Microsoft Windows Vista
629 win7;; Microsoft Windows 7
630 win8;; Microsoft Windows 8/2012/2012r2
631 win10;; Microsoft Windows 10/2016/2019
632 win11;; Microsoft Windows 11/2022
633 l24;; Linux 2.4 Kernel
634 l26;; Linux 2.6 - 5.X Kernel
635 solaris;; Solaris/OpenSolaris/OpenIndiania kernel
637 `parallel[n]`: `/dev/parport\d+|/dev/usb/lp\d+` ::
639 Map host parallel devices (n is 0 to 2).
641 NOTE: This option allows direct access to host hardware. So it is no longer possible to migrate such
642 machines - use with special care.
644 CAUTION: Experimental! User reported problems with this option.
646 `protection`: `<boolean>` ('default =' `0`)::
648 Sets the protection flag of the VM. This will disable the remove VM and remove disk operations.
650 `reboot`: `<boolean>` ('default =' `1`)::
652 Allow reboot. If set to '0' the VM exit on reboot.
654 `rng0`: `[source=]</dev/urandom|/dev/random|/dev/hwrng> [,max_bytes=<integer>] [,period=<integer>]` ::
656 Configure a VirtIO-based Random Number Generator.
658 `max_bytes`=`<integer>` ('default =' `1024`);;
660 Maximum bytes of entropy allowed to get injected into the guest every 'period' milliseconds. Prefer a lower value when using '/dev/random' as source. Use `0` to disable limiting (potentially dangerous!).
662 `period`=`<integer>` ('default =' `1000`);;
664 Every 'period' milliseconds the entropy-injection quota is reset, allowing the guest to retrieve another 'max_bytes' of entropy.
666 `source`=`</dev/hwrng | /dev/random | /dev/urandom>` ;;
668 The file on the host to gather entropy from. In most cases '/dev/urandom' should be preferred over '/dev/random' to avoid entropy-starvation issues on the host. Using urandom does *not* decrease security in any meaningful way, as it's still seeded from real entropy, and the bytes provided will most likely be mixed with real entropy on the guest as well. '/dev/hwrng' can be used to pass through a hardware RNG from the host.
670 `sata[n]`: `[file=]<volume> [,aio=<native|threads|io_uring>] [,backup=<1|0>] [,bps=<bps>] [,bps_max_length=<seconds>] [,bps_rd=<bps>] [,bps_rd_max_length=<seconds>] [,bps_wr=<bps>] [,bps_wr_max_length=<seconds>] [,cache=<enum>] [,cyls=<integer>] [,detect_zeroes=<1|0>] [,discard=<ignore|on>] [,format=<enum>] [,heads=<integer>] [,iops=<iops>] [,iops_max=<iops>] [,iops_max_length=<seconds>] [,iops_rd=<iops>] [,iops_rd_max=<iops>] [,iops_rd_max_length=<seconds>] [,iops_wr=<iops>] [,iops_wr_max=<iops>] [,iops_wr_max_length=<seconds>] [,mbps=<mbps>] [,mbps_max=<mbps>] [,mbps_rd=<mbps>] [,mbps_rd_max=<mbps>] [,mbps_wr=<mbps>] [,mbps_wr_max=<mbps>] [,media=<cdrom|disk>] [,replicate=<1|0>] [,rerror=<ignore|report|stop>] [,secs=<integer>] [,serial=<serial>] [,shared=<1|0>] [,size=<DiskSize>] [,snapshot=<1|0>] [,ssd=<1|0>] [,trans=<none|lba|auto>] [,werror=<enum>] [,wwn=<wwn>]` ::
672 Use volume as SATA hard disk or CD-ROM (n is 0 to 5).
674 `aio`=`<io_uring | native | threads>` ;;
678 `backup`=`<boolean>` ;;
680 Whether the drive should be included when making backups.
684 Maximum r/w speed in bytes per second.
686 `bps_max_length`=`<seconds>` ;;
688 Maximum length of I/O bursts in seconds.
692 Maximum read speed in bytes per second.
694 `bps_rd_max_length`=`<seconds>` ;;
696 Maximum length of read I/O bursts in seconds.
700 Maximum write speed in bytes per second.
702 `bps_wr_max_length`=`<seconds>` ;;
704 Maximum length of write I/O bursts in seconds.
706 `cache`=`<directsync | none | unsafe | writeback | writethrough>` ;;
708 The drive's cache mode
710 `cyls`=`<integer>` ;;
712 Force the drive's physical geometry to have a specific cylinder count.
714 `detect_zeroes`=`<boolean>` ;;
716 Controls whether to detect and try to optimize writes of zeroes.
718 `discard`=`<ignore | on>` ;;
720 Controls whether to pass discard/trim requests to the underlying storage.
724 The drive's backing volume.
726 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
728 The drive's backing file's data format.
730 `heads`=`<integer>` ;;
732 Force the drive's physical geometry to have a specific head count.
736 Maximum r/w I/O in operations per second.
738 `iops_max`=`<iops>` ;;
740 Maximum unthrottled r/w I/O pool in operations per second.
742 `iops_max_length`=`<seconds>` ;;
744 Maximum length of I/O bursts in seconds.
746 `iops_rd`=`<iops>` ;;
748 Maximum read I/O in operations per second.
750 `iops_rd_max`=`<iops>` ;;
752 Maximum unthrottled read I/O pool in operations per second.
754 `iops_rd_max_length`=`<seconds>` ;;
756 Maximum length of read I/O bursts in seconds.
758 `iops_wr`=`<iops>` ;;
760 Maximum write I/O in operations per second.
762 `iops_wr_max`=`<iops>` ;;
764 Maximum unthrottled write I/O pool in operations per second.
766 `iops_wr_max_length`=`<seconds>` ;;
768 Maximum length of write I/O bursts in seconds.
772 Maximum r/w speed in megabytes per second.
774 `mbps_max`=`<mbps>` ;;
776 Maximum unthrottled r/w pool in megabytes per second.
778 `mbps_rd`=`<mbps>` ;;
780 Maximum read speed in megabytes per second.
782 `mbps_rd_max`=`<mbps>` ;;
784 Maximum unthrottled read pool in megabytes per second.
786 `mbps_wr`=`<mbps>` ;;
788 Maximum write speed in megabytes per second.
790 `mbps_wr_max`=`<mbps>` ;;
792 Maximum unthrottled write pool in megabytes per second.
794 `media`=`<cdrom | disk>` ('default =' `disk`);;
796 The drive's media type.
798 `replicate`=`<boolean>` ('default =' `1`);;
800 Whether the drive should considered for replication jobs.
802 `rerror`=`<ignore | report | stop>` ;;
806 `secs`=`<integer>` ;;
808 Force the drive's physical geometry to have a specific sector count.
810 `serial`=`<serial>` ;;
812 The drive's reported serial number, url-encoded, up to 20 bytes long.
814 `shared`=`<boolean>` ('default =' `0`);;
816 Mark this locally-managed volume as available on all nodes.
818 WARNING: This option does not share the volume automatically, it assumes it is shared already!
820 `size`=`<DiskSize>` ;;
822 Disk size. This is purely informational and has no effect.
824 `snapshot`=`<boolean>` ;;
826 Controls qemu's snapshot mode feature. If activated, changes made to the disk are temporary and will be discarded when the VM is shutdown.
830 Whether to expose this drive as an SSD, rather than a rotational hard disk.
832 `trans`=`<auto | lba | none>` ;;
834 Force disk geometry bios translation mode.
836 `werror`=`<enospc | ignore | report | stop>` ;;
842 The drive's worldwide name, encoded as 16 bytes hex string, prefixed by '0x'.
844 `scsi[n]`: `[file=]<volume> [,aio=<native|threads|io_uring>] [,backup=<1|0>] [,bps=<bps>] [,bps_max_length=<seconds>] [,bps_rd=<bps>] [,bps_rd_max_length=<seconds>] [,bps_wr=<bps>] [,bps_wr_max_length=<seconds>] [,cache=<enum>] [,cyls=<integer>] [,detect_zeroes=<1|0>] [,discard=<ignore|on>] [,format=<enum>] [,heads=<integer>] [,iops=<iops>] [,iops_max=<iops>] [,iops_max_length=<seconds>] [,iops_rd=<iops>] [,iops_rd_max=<iops>] [,iops_rd_max_length=<seconds>] [,iops_wr=<iops>] [,iops_wr_max=<iops>] [,iops_wr_max_length=<seconds>] [,iothread=<1|0>] [,mbps=<mbps>] [,mbps_max=<mbps>] [,mbps_rd=<mbps>] [,mbps_rd_max=<mbps>] [,mbps_wr=<mbps>] [,mbps_wr_max=<mbps>] [,media=<cdrom|disk>] [,queues=<integer>] [,replicate=<1|0>] [,rerror=<ignore|report|stop>] [,ro=<1|0>] [,scsiblock=<1|0>] [,secs=<integer>] [,serial=<serial>] [,shared=<1|0>] [,size=<DiskSize>] [,snapshot=<1|0>] [,ssd=<1|0>] [,trans=<none|lba|auto>] [,werror=<enum>] [,wwn=<wwn>]` ::
846 Use volume as SCSI hard disk or CD-ROM (n is 0 to 30).
848 `aio`=`<io_uring | native | threads>` ;;
852 `backup`=`<boolean>` ;;
854 Whether the drive should be included when making backups.
858 Maximum r/w speed in bytes per second.
860 `bps_max_length`=`<seconds>` ;;
862 Maximum length of I/O bursts in seconds.
866 Maximum read speed in bytes per second.
868 `bps_rd_max_length`=`<seconds>` ;;
870 Maximum length of read I/O bursts in seconds.
874 Maximum write speed in bytes per second.
876 `bps_wr_max_length`=`<seconds>` ;;
878 Maximum length of write I/O bursts in seconds.
880 `cache`=`<directsync | none | unsafe | writeback | writethrough>` ;;
882 The drive's cache mode
884 `cyls`=`<integer>` ;;
886 Force the drive's physical geometry to have a specific cylinder count.
888 `detect_zeroes`=`<boolean>` ;;
890 Controls whether to detect and try to optimize writes of zeroes.
892 `discard`=`<ignore | on>` ;;
894 Controls whether to pass discard/trim requests to the underlying storage.
898 The drive's backing volume.
900 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
902 The drive's backing file's data format.
904 `heads`=`<integer>` ;;
906 Force the drive's physical geometry to have a specific head count.
910 Maximum r/w I/O in operations per second.
912 `iops_max`=`<iops>` ;;
914 Maximum unthrottled r/w I/O pool in operations per second.
916 `iops_max_length`=`<seconds>` ;;
918 Maximum length of I/O bursts in seconds.
920 `iops_rd`=`<iops>` ;;
922 Maximum read I/O in operations per second.
924 `iops_rd_max`=`<iops>` ;;
926 Maximum unthrottled read I/O pool in operations per second.
928 `iops_rd_max_length`=`<seconds>` ;;
930 Maximum length of read I/O bursts in seconds.
932 `iops_wr`=`<iops>` ;;
934 Maximum write I/O in operations per second.
936 `iops_wr_max`=`<iops>` ;;
938 Maximum unthrottled write I/O pool in operations per second.
940 `iops_wr_max_length`=`<seconds>` ;;
942 Maximum length of write I/O bursts in seconds.
944 `iothread`=`<boolean>` ;;
946 Whether to use iothreads for this drive
950 Maximum r/w speed in megabytes per second.
952 `mbps_max`=`<mbps>` ;;
954 Maximum unthrottled r/w pool in megabytes per second.
956 `mbps_rd`=`<mbps>` ;;
958 Maximum read speed in megabytes per second.
960 `mbps_rd_max`=`<mbps>` ;;
962 Maximum unthrottled read pool in megabytes per second.
964 `mbps_wr`=`<mbps>` ;;
966 Maximum write speed in megabytes per second.
968 `mbps_wr_max`=`<mbps>` ;;
970 Maximum unthrottled write pool in megabytes per second.
972 `media`=`<cdrom | disk>` ('default =' `disk`);;
974 The drive's media type.
976 `queues`=`<integer> (2 - N)` ;;
980 `replicate`=`<boolean>` ('default =' `1`);;
982 Whether the drive should considered for replication jobs.
984 `rerror`=`<ignore | report | stop>` ;;
990 Whether the drive is read-only.
992 `scsiblock`=`<boolean>` ('default =' `0`);;
994 whether to use scsi-block for full passthrough of host block device
996 WARNING: can lead to I/O errors in combination with low memory or high memory fragmentation on host
998 `secs`=`<integer>` ;;
1000 Force the drive's physical geometry to have a specific sector count.
1002 `serial`=`<serial>` ;;
1004 The drive's reported serial number, url-encoded, up to 20 bytes long.
1006 `shared`=`<boolean>` ('default =' `0`);;
1008 Mark this locally-managed volume as available on all nodes.
1010 WARNING: This option does not share the volume automatically, it assumes it is shared already!
1012 `size`=`<DiskSize>` ;;
1014 Disk size. This is purely informational and has no effect.
1016 `snapshot`=`<boolean>` ;;
1018 Controls qemu's snapshot mode feature. If activated, changes made to the disk are temporary and will be discarded when the VM is shutdown.
1020 `ssd`=`<boolean>` ;;
1022 Whether to expose this drive as an SSD, rather than a rotational hard disk.
1024 `trans`=`<auto | lba | none>` ;;
1026 Force disk geometry bios translation mode.
1028 `werror`=`<enospc | ignore | report | stop>` ;;
1034 The drive's worldwide name, encoded as 16 bytes hex string, prefixed by '0x'.
1036 `scsihw`: `<lsi | lsi53c810 | megasas | pvscsi | virtio-scsi-pci | virtio-scsi-single>` ('default =' `lsi`)::
1038 SCSI controller model
1040 `searchdomain`: `<string>` ::
1042 cloud-init: Sets DNS search domains for a container. Create will automatically use the setting from the host if neither searchdomain nor nameserver are set.
1044 `serial[n]`: `(/dev/.+|socket)` ::
1046 Create a serial device inside the VM (n is 0 to 3), and pass through a
1047 host serial device (i.e. /dev/ttyS0), or create a unix socket on the
1048 host side (use 'qm terminal' to open a terminal connection).
1050 NOTE: If you pass through a host serial device, it is no longer possible to migrate such machines -
1051 use with special care.
1053 CAUTION: Experimental! User reported problems with this option.
1055 `shares`: `<integer> (0 - 50000)` ('default =' `1000`)::
1057 Amount of memory shares for auto-ballooning. The larger the number is, the more memory this VM gets. Number is relative to weights of all other running VMs. Using zero disables auto-ballooning. Auto-ballooning is done by pvestatd.
1059 `smbios1`: `[base64=<1|0>] [,family=<Base64 encoded string>] [,manufacturer=<Base64 encoded string>] [,product=<Base64 encoded string>] [,serial=<Base64 encoded string>] [,sku=<Base64 encoded string>] [,uuid=<UUID>] [,version=<Base64 encoded string>]` ::
1061 Specify SMBIOS type 1 fields.
1063 `base64`=`<boolean>` ;;
1065 Flag to indicate that the SMBIOS values are base64 encoded
1067 `family`=`<Base64 encoded string>` ;;
1069 Set SMBIOS1 family string.
1071 `manufacturer`=`<Base64 encoded string>` ;;
1073 Set SMBIOS1 manufacturer.
1075 `product`=`<Base64 encoded string>` ;;
1077 Set SMBIOS1 product ID.
1079 `serial`=`<Base64 encoded string>` ;;
1081 Set SMBIOS1 serial number.
1083 `sku`=`<Base64 encoded string>` ;;
1085 Set SMBIOS1 SKU string.
1091 `version`=`<Base64 encoded string>` ;;
1093 Set SMBIOS1 version.
1095 `smp`: `<integer> (1 - N)` ('default =' `1`)::
1097 The number of CPUs. Please use option -sockets instead.
1099 `sockets`: `<integer> (1 - N)` ('default =' `1`)::
1101 The number of CPU sockets.
1103 `spice_enhancements`: `[foldersharing=<1|0>] [,videostreaming=<off|all|filter>]` ::
1105 Configure additional enhancements for SPICE.
1107 `foldersharing`=`<boolean>` ('default =' `0`);;
1109 Enable folder sharing via SPICE. Needs Spice-WebDAV daemon installed in the VM.
1111 `videostreaming`=`<all | filter | off>` ('default =' `off`);;
1113 Enable video streaming. Uses compression for detected video streams.
1115 `sshkeys`: `<string>` ::
1117 cloud-init: Setup public SSH keys (one key per line, OpenSSH format).
1119 `startdate`: `(now | YYYY-MM-DD | YYYY-MM-DDTHH:MM:SS)` ('default =' `now`)::
1121 Set the initial date of the real time clock. Valid format for date are:'now' or '2006-06-17T16:01:21' or '2006-06-17'.
1123 `startup`: `[[order=]\d+] [,up=\d+] [,down=\d+] ` ::
1125 Startup and shutdown behavior. Order is a non-negative number defining the general startup order. Shutdown in done with reverse ordering. Additionally you can set the 'up' or 'down' delay in seconds, which specifies a delay to wait before the next VM is started or stopped.
1127 `tablet`: `<boolean>` ('default =' `1`)::
1129 Enable/disable the USB tablet device. This device is usually needed to allow absolute mouse positioning with VNC. Else the mouse runs out of sync with normal VNC clients. If you're running lots of console-only guests on one host, you may consider disabling this to save some context switches. This is turned off by default if you use spice (`qm set <vmid> --vga qxl`).
1131 `tags`: `<string>` ::
1133 Tags of the VM. This is only meta information.
1135 `tdf`: `<boolean>` ('default =' `0`)::
1137 Enable/disable time drift fix.
1139 `template`: `<boolean>` ('default =' `0`)::
1141 Enable/disable Template.
1143 `tpmstate0`: `[file=]<volume> [,size=<DiskSize>] [,version=<v1.2|v2.0>]` ::
1145 Configure a Disk for storing TPM state. The format is fixed to 'raw'.
1147 `file`=`<volume>` ;;
1149 The drive's backing volume.
1151 `size`=`<DiskSize>` ;;
1153 Disk size. This is purely informational and has no effect.
1155 `version`=`<v1.2 | v2.0>` ('default =' `v2.0`);;
1157 The TPM interface version. v2.0 is newer and should be preferred. Note that this cannot be changed later on.
1159 `unused[n]`: `[file=]<volume>` ::
1161 Reference to unused volumes. This is used internally, and should not be modified manually.
1163 `file`=`<volume>` ;;
1165 The drive's backing volume.
1167 `usb[n]`: `[host=]<HOSTUSBDEVICE|spice> [,usb3=<1|0>]` ::
1169 Configure an USB device (n is 0 to 4).
1171 `host`=`<HOSTUSBDEVICE|spice>` ;;
1173 The Host USB device or port or the value 'spice'. HOSTUSBDEVICE syntax is:
1175 'bus-port(.port)*' (decimal numbers) or
1176 'vendor_id:product_id' (hexadeciaml numbers) or
1179 You can use the 'lsusb -t' command to list existing usb devices.
1181 NOTE: This option allows direct access to host hardware. So it is no longer possible to migrate such
1182 machines - use with special care.
1184 The value 'spice' can be used to add a usb redirection devices for spice.
1186 `usb3`=`<boolean>` ('default =' `0`);;
1188 Specifies whether if given host option is a USB3 device or port.
1190 `vcpus`: `<integer> (1 - N)` ('default =' `0`)::
1192 Number of hotplugged vcpus.
1194 `vga`: `[[type=]<enum>] [,memory=<integer>]` ::
1196 Configure the VGA Hardware. If you want to use high resolution modes (>= 1280x1024x16) you may need to increase the vga memory option. Since QEMU 2.9 the default VGA display type is 'std' for all OS types besides some Windows versions (XP and older) which use 'cirrus'. The 'qxl' option enables the SPICE display server. For win* OS you can select how many independent displays you want, Linux guests can add displays them self.
1197 You can also run without any graphic card, using a serial device as terminal.
1199 `memory`=`<integer> (4 - 512)` ;;
1201 Sets the VGA memory (in MiB). Has no effect with serial display.
1203 `type`=`<cirrus | none | qxl | qxl2 | qxl3 | qxl4 | serial0 | serial1 | serial2 | serial3 | std | virtio | virtio-gl | vmware>` ('default =' `std`);;
1205 Select the VGA type.
1207 `virtio[n]`: `[file=]<volume> [,aio=<native|threads|io_uring>] [,backup=<1|0>] [,bps=<bps>] [,bps_max_length=<seconds>] [,bps_rd=<bps>] [,bps_rd_max_length=<seconds>] [,bps_wr=<bps>] [,bps_wr_max_length=<seconds>] [,cache=<enum>] [,cyls=<integer>] [,detect_zeroes=<1|0>] [,discard=<ignore|on>] [,format=<enum>] [,heads=<integer>] [,iops=<iops>] [,iops_max=<iops>] [,iops_max_length=<seconds>] [,iops_rd=<iops>] [,iops_rd_max=<iops>] [,iops_rd_max_length=<seconds>] [,iops_wr=<iops>] [,iops_wr_max=<iops>] [,iops_wr_max_length=<seconds>] [,iothread=<1|0>] [,mbps=<mbps>] [,mbps_max=<mbps>] [,mbps_rd=<mbps>] [,mbps_rd_max=<mbps>] [,mbps_wr=<mbps>] [,mbps_wr_max=<mbps>] [,media=<cdrom|disk>] [,replicate=<1|0>] [,rerror=<ignore|report|stop>] [,ro=<1|0>] [,secs=<integer>] [,serial=<serial>] [,shared=<1|0>] [,size=<DiskSize>] [,snapshot=<1|0>] [,trans=<none|lba|auto>] [,werror=<enum>]` ::
1209 Use volume as VIRTIO hard disk (n is 0 to 15).
1211 `aio`=`<io_uring | native | threads>` ;;
1215 `backup`=`<boolean>` ;;
1217 Whether the drive should be included when making backups.
1221 Maximum r/w speed in bytes per second.
1223 `bps_max_length`=`<seconds>` ;;
1225 Maximum length of I/O bursts in seconds.
1229 Maximum read speed in bytes per second.
1231 `bps_rd_max_length`=`<seconds>` ;;
1233 Maximum length of read I/O bursts in seconds.
1237 Maximum write speed in bytes per second.
1239 `bps_wr_max_length`=`<seconds>` ;;
1241 Maximum length of write I/O bursts in seconds.
1243 `cache`=`<directsync | none | unsafe | writeback | writethrough>` ;;
1245 The drive's cache mode
1247 `cyls`=`<integer>` ;;
1249 Force the drive's physical geometry to have a specific cylinder count.
1251 `detect_zeroes`=`<boolean>` ;;
1253 Controls whether to detect and try to optimize writes of zeroes.
1255 `discard`=`<ignore | on>` ;;
1257 Controls whether to pass discard/trim requests to the underlying storage.
1259 `file`=`<volume>` ;;
1261 The drive's backing volume.
1263 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
1265 The drive's backing file's data format.
1267 `heads`=`<integer>` ;;
1269 Force the drive's physical geometry to have a specific head count.
1273 Maximum r/w I/O in operations per second.
1275 `iops_max`=`<iops>` ;;
1277 Maximum unthrottled r/w I/O pool in operations per second.
1279 `iops_max_length`=`<seconds>` ;;
1281 Maximum length of I/O bursts in seconds.
1283 `iops_rd`=`<iops>` ;;
1285 Maximum read I/O in operations per second.
1287 `iops_rd_max`=`<iops>` ;;
1289 Maximum unthrottled read I/O pool in operations per second.
1291 `iops_rd_max_length`=`<seconds>` ;;
1293 Maximum length of read I/O bursts in seconds.
1295 `iops_wr`=`<iops>` ;;
1297 Maximum write I/O in operations per second.
1299 `iops_wr_max`=`<iops>` ;;
1301 Maximum unthrottled write I/O pool in operations per second.
1303 `iops_wr_max_length`=`<seconds>` ;;
1305 Maximum length of write I/O bursts in seconds.
1307 `iothread`=`<boolean>` ;;
1309 Whether to use iothreads for this drive
1313 Maximum r/w speed in megabytes per second.
1315 `mbps_max`=`<mbps>` ;;
1317 Maximum unthrottled r/w pool in megabytes per second.
1319 `mbps_rd`=`<mbps>` ;;
1321 Maximum read speed in megabytes per second.
1323 `mbps_rd_max`=`<mbps>` ;;
1325 Maximum unthrottled read pool in megabytes per second.
1327 `mbps_wr`=`<mbps>` ;;
1329 Maximum write speed in megabytes per second.
1331 `mbps_wr_max`=`<mbps>` ;;
1333 Maximum unthrottled write pool in megabytes per second.
1335 `media`=`<cdrom | disk>` ('default =' `disk`);;
1337 The drive's media type.
1339 `replicate`=`<boolean>` ('default =' `1`);;
1341 Whether the drive should considered for replication jobs.
1343 `rerror`=`<ignore | report | stop>` ;;
1349 Whether the drive is read-only.
1351 `secs`=`<integer>` ;;
1353 Force the drive's physical geometry to have a specific sector count.
1355 `serial`=`<serial>` ;;
1357 The drive's reported serial number, url-encoded, up to 20 bytes long.
1359 `shared`=`<boolean>` ('default =' `0`);;
1361 Mark this locally-managed volume as available on all nodes.
1363 WARNING: This option does not share the volume automatically, it assumes it is shared already!
1365 `size`=`<DiskSize>` ;;
1367 Disk size. This is purely informational and has no effect.
1369 `snapshot`=`<boolean>` ;;
1371 Controls qemu's snapshot mode feature. If activated, changes made to the disk are temporary and will be discarded when the VM is shutdown.
1373 `trans`=`<auto | lba | none>` ;;
1375 Force disk geometry bios translation mode.
1377 `werror`=`<enospc | ignore | report | stop>` ;;
1381 `vmgenid`: `<UUID>` ('default =' `1 (autogenerated)`)::
1383 The VM generation ID (vmgenid) device exposes a 128-bit integer value identifier to the guest OS. This allows to notify the guest operating system when the virtual machine is executed with a different configuration (e.g. snapshot execution or creation from a template). The guest operating system notices the change, and is then able to react as appropriate by marking its copies of distributed databases as dirty, re-initializing its random number generator, etc.
1384 Note that auto-creation only works when done through API/CLI create or update methods, but not when manually editing the config file.
1386 `vmstatestorage`: `<string>` ::
1388 Default storage for VM state volumes/files.
1390 `watchdog`: `[[model=]<i6300esb|ib700>] [,action=<enum>]` ::
1392 Create a virtual hardware watchdog device. Once enabled (by a guest action), the watchdog must be periodically polled by an agent inside the guest or else the watchdog will reset the guest (or execute the respective action specified)
1394 `action`=`<debug | none | pause | poweroff | reset | shutdown>` ;;
1396 The action to perform if after activation the guest fails to poll the watchdog in time.
1398 `model`=`<i6300esb | ib700>` ('default =' `i6300esb`);;
1400 Watchdog type to emulate.