Provided by: libsys-virt-perl_11.0.0-1_amd64 
NAME
Sys::Virt::Domain - Represent & manage a libvirt guest domain
DESCRIPTION
The "Sys::Virt::Domain" module represents a guest domain managed by the virtual machine monitor.
METHODS
my $id = $dom->get_id()
Returns an integer with a locally unique identifier for the domain.
my $uuid = $dom->get_uuid()
Returns a 16 byte long string containing the raw globally unique identifier (UUID) for the domain.
my $uuid = $dom->get_uuid_string()
Returns a printable string representation of the raw UUID, in the format
'XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX'.
my $name = $dom->get_name()
Returns a string with a locally unique name of the domain
my $hostname = $dom->get_hostname($flags=0)
Returns a string representing the hostname of the guest. $flags can be zero or more of
Sys::Virt::Domain::GET_HOSTNAME_AGENT
Report the guest agent hostname
Sys::Virt::Domain::GET_HOSTNAME_LEASE
Report the DHCP lease hostname
my $str = $dom->get_metadata($type, $uri, $flags =0)
Returns the metadata element of type $type associated with the domain. If $type is
"Sys::Virt::Domain::METADATA_ELEMENT" then the $uri parameter specifies the XML namespace to
retrieve, otherwise $uri should be "undef". The optional $flags parameter defaults to zero.
$dom->set_metadata($type, $val, $key, $uri, $flags=0)
Sets the metadata element of type $type to hold the value $val. If $type is
"Sys::Virt::Domain::METADATA_ELEMENT" then the $key and $uri elements specify an XML namespace to
use, otherwise they should both be "undef". The optional $flags parameter defaults to zero.
$dom->is_active()
Returns a true value if the domain is currently running
$dom->is_persistent()
Returns a true value if the domain has a persistent configuration file defined
$dom->is_updated()
Returns a true value if the domain is running and has a persistent configuration file defined that is
out of date compared to the current live config.
my $xml = $dom->get_xml_description($flags=0)
Returns an XML document containing a complete description of the domain's configuration. The optional
$flags parameter controls generation of the XML document, defaulting to 0 if omitted. It can be one
or more of the XML DUMP constants listed later in this document.
my $type = $dom->get_os_type()
Returns a string containing the name of the OS type running within the domain.
$dom->create($flags)
Start a domain whose configuration was previously defined using the "define_domain" method in
Sys::Virt. The $flags parameter accepts one of the DOMAIN CREATION constants documented later, and
defaults to 0 if omitted.
$dom->create_with_files($fds, $flags)
Start a domain whose configuration was previously defined using the "define_domain" method in
Sys::Virt. The $fds parameter is an array of UNIX file descriptors which will be passed to the init
process of the container. This is only supported with container based virtualization.The $flags
parameter accepts one of the DOMAIN CREATION constants documented later, and defaults to 0 if
omitted.
$dom->undefine()
Remove the configuration associated with a domain previously defined with the "define_domain" method
in Sys::Virt. If the domain is running, you probably want to use the "shutdown" or "destroy" methods
instead.
$dom->suspend()
Temporarily stop execution of the domain, allowing later continuation by calling the "resume" method.
$dom->resume()
Resume execution of a domain previously halted with the "suspend" method.
$dom->pm_wakeup()
Wakeup the guest from power management suspend state
$dom->pm_suspend_for_duration($target, $duration, $flags=0)
Tells the guest OS to enter the power management suspend state identified by $target. The $target
parameter should be one of the NODE SUSPEND CONSTANTS listed in "Sys::Virt". The $duration specifies
when the guest should automatically wakeup. The $flags parameter is optional and defaults to zero.
$dom->save($filename, $dxml=undef, $params=undef, $flags=0)
Take a snapshot of the domain's state and save the information to the file named in the $filename
parameter. The domain can later be restored from this file with the "restore_domain" method on the
Sys::Virt object. The optional $dxml parameter can be used to alter portions of the domain XML that
will be used when performing restore. The $params parameter is a hash reference whose keys is a
subset of the SAVE / RESTORE PARAMETER CONSTANTS. The $flags parameter accepts one of the SAVE /
RESTORE FLAG CONSTANTS described later and defaults to zero.
$dom->managed_save($flags=0)
Take a snapshot of the domain's state and save the information to a managed save location. The domain
will be automatically restored with this state when it is next started. The $flags parameter is
unused and defaults to zero.
$bool = $dom->has_managed_save_image($flags=0)
Return a non-zero value if the domain has a managed save image that will be used at next start. The
$flags parameter is unused and defaults to zero.
$dom->managed_save_remove($flags=0)
Remove the current managed save image, causing the guest to perform a full boot next time it is
started. The $flags parameter is unused and defaults to zero.
$dom->managed_save_define_xml($xml, $flags=0)
Update the XML of the managed save image to $xml. The $flags parameter is unused and defaults to
zero.
$xml = $dom->managed_save_get_xml_description($flags=0)
Get the XML in the managed save image. The $flags parameter accepts the following constants
Sys::Virt::Domain::SAVE_IMAGE_XML_SECURE
Include security sensitive information in the XML dump, such as passwords.
$dom->core_dump($filename[, $flags])
Trigger a core dump of the guest virtual machine, saving its memory image to $filename so it can be
analysed by tools such as "crash". The optional $flags flags parameter is currently unused and if
omitted will default to 0.
$dom->core_dump_format($filename, $format, [, $flags])
Trigger a core dump of the guest virtual machine, saving its memory image to $filename so it can be
analysed by tools such as "crash". The $format parameter is one of the core dump format constants.
The optional $flags flags parameter is currently unused and if omitted will default to 0.
Sys::Virt::Domain::CORE_DUMP_FORMAT_RAW
The raw ELF format
Sys::Virt::Domain::CORE_DUMP_FORMAT_KDUMP_ZLIB
The zlib compressed ELF format
Sys::Virt::Domain::CORE_DUMP_FORMAT_KDUMP_SNAPPY
The snappy compressed ELF format
Sys::Virt::Domain::CORE_DUMP_FORMAT_KDUMP_LZO
The lzo compressed ELF format
Sys::Virt::Domain::CORE_DUMP_FORMAT_WIN_DMP
The Windows dump format
$dom->destroy()
Immediately poweroff the machine. This is equivalent to removing the power plug. The guest OS is
given no time to cleanup / save state. For a clean poweroff sequence, use the "shutdown" method
instead.
my $info = $dom->get_info()
Returns a hash reference summarising the execution state of the domain. The elements of the hash are
as follows:
maxMem
The maximum memory allowed for this domain, in kilobytes
memory
The current memory allocated to the domain in kilobytes
cpuTime
The amount of CPU time used by the domain
nrVirtCpu
The current number of virtual CPUs enabled in the domain
state
The execution state of the machine, which will be one of the constants
&Sys::Virt::Domain::STATE_*.
my ($state, $reason) = $dom->get_state()
Returns an array whose values specify the current state of the guest, and the reason for it being in
that state. The $state values are the same as for the "get_info" API, and the $reason values come
from:
Sys::Virt::Domain::STATE_CRASHED_UNKNOWN
It is not known why the domain has crashed
Sys::Virt::Domain::STATE_CRASHED_PANICKED
The domain has crashed due to a kernel panic
Sys::Virt::Domain::STATE_NOSTATE_UNKNOWN
It is not known why the domain has no state
Sys::Virt::Domain::STATE_PAUSED_DUMP
The guest is paused due to a core dump operation
Sys::Virt::Domain::STATE_PAUSED_FROM_SNAPSHOT
The guest is paused due to a snapshot
Sys::Virt::Domain::STATE_PAUSED_IOERROR
The guest is paused due to an I/O error
Sys::Virt::Domain::STATE_PAUSED_MIGRATION
The guest is paused due to migration
Sys::Virt::Domain::STATE_PAUSED_SAVE
The guest is paused due to a save operation
Sys::Virt::Domain::STATE_PAUSED_UNKNOWN
It is not known why the domain has paused
Sys::Virt::Domain::STATE_PAUSED_USER
The guest is paused at admin request
Sys::Virt::Domain::STATE_PAUSED_WATCHDOG
The guest is paused due to the watchdog
Sys::Virt::Domain::STATE_PAUSED_SHUTTING_DOWN
The guest is paused while domain shutdown takes place
Sys::Virt::Domain::STATE_PAUSED_SNAPSHOT
The guest is paused while a snapshot takes place
Sys::Virt::Domain::STATE_PAUSED_CRASHED
The guest is paused due to a kernel panic
Sys::Virt::Domain::STATE_PAUSED_STARTING_UP
The guest is paused as it is being started up.
Sys::Virt::Domain::STATE_PAUSED_POSTCOPY
The guest is paused as post-copy migration is taking place
Sys::Virt::Domain::STATE_PAUSED_POSTCOPY_FAILED
The guest is paused as post-copy migration failed
Sys::Virt::Domain::STATE_PAUSED_API_ERROR
The guest is paused as a result of failed resume operation at the end of some APIs which
internally suspend guests.
Sys::Virt::Domain::STATE_RUNNING_BOOTED
The guest is running after being booted
Sys::Virt::Domain::STATE_RUNNING_FROM_SNAPSHOT
The guest is running after restore from snapshot
Sys::Virt::Domain::STATE_RUNNING_MIGRATED
The guest is running after migration
Sys::Virt::Domain::STATE_RUNNING_MIGRATION_CANCELED
The guest is running after migration abort
Sys::Virt::Domain::STATE_RUNNING_RESTORED
The guest is running after restore from file
Sys::Virt::Domain::STATE_RUNNING_SAVE_CANCELED
The guest is running after save cancel
Sys::Virt::Domain::STATE_RUNNING_UNKNOWN
It is not known why the domain has started
Sys::Virt::Domain::STATE_RUNNING_UNPAUSED
The guest is running after a resume
Sys::Virt::Domain::STATE_RUNNING_WAKEUP
The guest is running after wakeup from power management suspend
Sys::Virt::Domain::STATE_RUNNING_CRASHED
The guest was restarted after crashing
Sys::Virt::Domain::STATE_RUNNING_POSTCOPY
The guest is running but post-copy is taking place
Sys::Virt::Domain::STATE_RUNNING_POSTCOPY_FAILED
The guest is running, but migration failed in post-copy
Sys::Virt::Domain::STATE_BLOCKED_UNKNOWN
The guest is blocked for an unknown reason
Sys::Virt::Domain::STATE_SHUTDOWN_UNKNOWN
It is not known why the domain has shutdown
Sys::Virt::Domain::STATE_SHUTDOWN_USER
The guest is shutdown due to admin request
Sys::Virt::Domain::STATE_SHUTOFF_CRASHED
The guest is shutoff after a crash
Sys::Virt::Domain::STATE_SHUTOFF_DESTROYED
The guest is shutoff after being destroyed
Sys::Virt::Domain::STATE_SHUTOFF_FAILED
The guest is shutoff due to a virtualization failure
Sys::Virt::Domain::STATE_SHUTOFF_FROM_SNAPSHOT
The guest is shutoff after a snapshot
Sys::Virt::Domain::STATE_SHUTOFF_MIGRATED
The guest is shutoff after migration
Sys::Virt::Domain::STATE_SHUTOFF_SAVED
The guest is shutoff after a save
Sys::Virt::Domain::STATE_SHUTOFF_SHUTDOWN
The guest is shutoff due to controlled shutdown
Sys::Virt::Domain::STATE_SHUTOFF_UNKNOWN
It is not known why the domain has shutoff
Sys::Virt::Domain::STATE_SHUTOFF_DAEMON
The daemon stopped the guest due to a failure
Sys::Virt::Domain::STATE_PMSUSPENDED_UNKNOWN
It is not known why the domain was suspended to RAM
Sys::Virt::Domain::STATE_PMSUSPENDED_DISK_UNKNOWN
It is not known why the domain was suspended to disk
my $info = $dom->get_control_info($flags=0)
Returns a hash reference providing information about the control channel. The returned keys in the
hash are
"state"
One of the CONTROL INFO constants listed later
"details"
Currently unused, always 0.
"stateTime"
The elapsed time since the control channel entered the current state.
my $time = $dom->get_time($flags=0);
Get the current time of the guest, in seconds and nanoseconds. The $flags parameter is currently
unused and defaults to zero. The return value is an array ref with two elements, the first contains
the time in seconds, the second contains the remaining nanoseconds.
$dom->set_time($secs, $nsecs, $flags=0);
Set the current time of the guest, in seconds and nanoseconds. The $flags parameter accepts one of
"Sys::Virt::Domain::TIME_SYNC"
Re-sync domain time from domain's RTC.
$dom->set_user_password($username, $password, $flags=0);
Update the password for account $username to be $password. $password is the clear-text password
string unless the PASSWORD_ENCRYPTED flag is set.
"Sys::Virt::Domain::PASSWORD_ENCRYPTED"
The $password is encrypted with the password scheme required by the guest OS.
$dom->rename($newname, $flags=0)
Change the name of an inactive guest to be $newname. The $flags parameter is currently unused and
defaults to zero.
my @errs = $dom->get_disk_errors($flags=0)
Returns a list of all disk errors that have occurred on the backing store for the guest's virtual
disks. The returned array elements are hash references, containing two keys
"path"
The path of the disk with an error
"error"
The error type
$dom->send_key($keycodeset, $holdtime, \@keycodes, $flags=0)
Sends a sequence of keycodes to the guest domain. The $keycodeset should be one of the constants
listed later in the KEYCODE SET section. $holdtiem is the duration, in milliseconds, to keep the key
pressed before releasing it and sending the next keycode. @keycodes is an array reference containing
the list of keycodes to send to the guest. The elements in the array should be keycode values from
the specified keycode set. $flags is currently unused.
my $info = $dom->get_block_info($dev, $flags=0)
Returns a hash reference summarising the disk usage of the host backing store for a guest block
device. The $dev parameter should be the path to the backing store on the host. $flags is currently
unused and defaults to 0 if omitted. The returned hash contains the following elements
capacity
Logical size in bytes of the block device backing image *
allocation
Highest allocated extent in bytes of the block device backing image
physical
Physical size in bytes of the container of the backing image
$dom->set_max_memory($mem)
Set the maximum memory for the domain to the value $mem. The value of the $mem parameter is specified
in kilobytes.
$mem = $dom->get_max_memory()
Returns the current maximum memory allowed for this domain in kilobytes.
$dom->set_memory($mem, $flags)
Set the current memory for the domain to the value $mem. The value of the $mem parameter is specified
in kilobytes. This must be less than, or equal to the domain's max memory limit. The $flags
parameter can control whether the update affects the live guest, or inactive config, defaulting to
modifying the current state.
$dom->set_memory_stats_period($period, $flags)
Set the period on which guests memory stats are refreshed, with $period being a value in seconds. The
$flags parameter is currently unused.
$dom->shutdown()
Request that the guest OS perform a graceful shutdown and poweroff. This usually requires some form
of cooperation from the guest operating system, such as responding to an ACPI signal, or a guest
agent process. For an immediate, forceful poweroff, use the "destroy" method instead.
$dom->reboot([$flags])
Request that the guest OS perform a graceful shutdown and optionally restart. The optional $flags
parameter is currently unused and if omitted defaults to zero.
$dom->reset([$flags])
Perform a hardware reset of the virtual machine. The guest OS is given no opportunity to shutdown
gracefully. The optional $flags parameter is currently unused and if omitted defaults to zero.
$dom->get_max_vcpus()
Return the maximum number of vcpus that are configured for the domain
$dom->attach_device($xml[, $flags])
Hotplug a new device whose configuration is given by $xml, to the running guest. The optional
<$flags> parameter defaults to 0, but can accept one of the device hotplug flags described later.
$dom->detach_device($xml[, $flags])
Hotunplug an existing device whose configuration is given by $xml, from the running guest. The
optional <$flags> parameter defaults to 0, but can accept one of the device hotplug flags described
later.
$dom->detach_device_alias($alias[, $flags])
Hotunplug an existing device which is identified by $alias. The optional <$flags> parameter defaults
to 0, but can accept one of the device hotplug flags described later.
$dom->update_device($xml[, $flags])
Update the configuration of an existing device. The new configuration is given by $xml. The optional
<$flags> parameter defaults to 0 but can accept one of the device hotplug flags described later.
$data = $dom->block_peek($path, $offset, $size[, $flags])
Peek into the guest disk $path, at byte $offset capturing $size bytes of data. The returned scalar
may contain embedded NULLs. The optional $flags parameter is currently unused and if omitted defaults
to zero.
$data = $dom->memory_peek($offset, $size[, $flags])
Peek into the guest memory at byte $offset virtual address, capturing $size bytes of memory. The
return scalar may contain embedded NULLs. The optional $flags parameter is currently unused and if
omitted defaults to zero.
$flag = $dom->get_autostart();
Return a true value if the guest domain is configured to automatically start upon boot. Return false,
otherwise
$dom->set_autostart($flag)
Set the state of the autostart flag, which determines whether the guest will automatically start upon
boot of the host OS
$dom->set_vcpus($count, [$flags])
Set the number of virtual CPUs in the guest VM to $count. The optional $flags parameter can be used
to control whether the setting changes the live config or inactive config.
$dom->set_vcpu($cpumap, $state, [$flags])
Set the state of the CPUs in $cpumap to $state. The $flags parameter defaults to zero if not present.
$count = $dom->get_vcpus([$flags])
Get the number of virtual CPUs in the guest VM. The optional $flags parameter can be used to control
whether to query the setting of the live config or inactive config.
$dom->set_guest_vcpus($cpumap, $state, [$flags=0])
Set the online status of the guest OS CPUs. The $cpumap parameter describes the set of CPUs to modify
(e.g. "0-3,^1"). $state is either 1 to set the CPUs online, or 0 to set them offline. The $flags
parameter is currently unused and defaults to 0.
$info $dom->get_guest_vcpus([$flags=0])
Query information about the guest OS CPUs. The returned data is a hash reference with the following
keys.
vcpus
String containing bitmap representing CPU ids reported currently known to the guest.
online
String containing bitmap representing CPU ids that are currently online in the guest.
offlinable
String containing bitmap representing CPU ids that can be offlined in the guest.
The $flags parameter is currently unused and defaults to 0.
$type = $dom->get_scheduler_type()
Return the scheduler type for the guest domain
$stats = $dom->block_stats($path)
Fetch the current I/O statistics for the block device given by $path. The returned hash reference
contains keys for
"rd_req"
Number of read requests
"rd_bytes"
Number of bytes read
"wr_req"
Number of write requests
"wr_bytes"
Number of bytes written
"errs"
Some kind of error count
my $params = $dom->get_scheduler_parameters($flags=0)
Return the set of scheduler tunable parameters for the guest, as a hash reference. The precise set of
keys in the hash are specific to the hypervisor.
$dom->set_scheduler_parameters($params, $flags=0)
Update the set of scheduler tunable parameters. The value names for tunables vary, and can be
discovered using the "get_scheduler_params" call
my $params = $dom->get_memory_parameters($flags=0)
Return a hash reference containing the set of memory tunable parameters for the guest. The keys in
the hash are one of the constants MEMORY PARAMETERS described later. The $flags parameter accepts one
or more the CONFIG OPTION constants documented later, and defaults to 0 if omitted.
$dom->set_memory_parameters($params, $flags=0)
Update the memory tunable parameters for the guest. The $params should be a hash reference whose keys
are one of the MEMORY PARAMETERS constants. The $flags parameter accepts one or more the CONFIG
OPTION constants documented later, and defaults to 0 if omitted.
my $params = $dom->get_blkio_parameters($flags=0)
Return a hash reference containing the set of blkio tunable parameters for the guest. The keys in the
hash are one of the constants BLKIO PARAMETERS described later. The $flags parameter accepts one or
more the CONFIG OPTION constants documented later, and defaults to 0 if omitted.
$dom->set_blkio_parameters($params, $flags=0)
Update the blkio tunable parameters for the guest. The $params should be a hash reference whose keys
are one of the BLKIO PARAMETERS constants. The $flags parameter accepts one or more the CONFIG OPTION
constants documented later, and defaults to 0 if omitted.
$stats = $dom->get_block_iotune($disk, $flags=0)
Return a hash reference containing the set of blkio tunable parameters for the guest disk $disk. The
keys in the hash are one of the constants BLOCK IOTUNE PARAMETERS described later.
$dom->set_block_iotune($disk, $params, $flags=0);
Update the blkio tunable parameters for the guest disk $disk. The $params should be a hash reference
whose keys are one of the BLOCK IOTUNE PARAMETERS constants.
my $params = $dom->get_interface_parameters($intf, $flags=0)
Return a hash reference containing the set of interface tunable parameters for the guest. The keys in
the hash are one of the constants INTERFACE PARAMETERS described later.
$dom->set_interface_parameters($intf, $params, $flags=0)
Update the interface tunable parameters for the guest. The $params should be a hash reference whose
keys are one of the INTERFACE PARAMETERS constants.
my $params = $dom->get_numa_parameters($flags=0)
Return a hash reference containing the set of numa tunable parameters for the guest. The keys in the
hash are one of the constants NUMA PARAMETERS described later. The $flags parameter accepts one or
more the CONFIG OPTION constants documented later, and defaults to 0 if omitted.
$dom->set_numa_parameters($params, $flags=0)
Update the numa tunable parameters for the guest. The $params should be a hash reference whose keys
are one of the NUMA PARAMETERS constants. The $flags parameter accepts one or more the CONFIG OPTION
constants documented later, and defaults to 0 if omitted.
my $params = $dom->get_perf_events($flags=0)
Return a hash reference containing the set of performance events that are available for the guest.
The keys in the hash are one of the constants PERF EVENTS described later. The $flags parameter
accepts one or more the CONFIG OPTION constants documented later, and defaults to 0 if omitted.
$dom->set_perf_events($params, $flags=0)
Update the enabled state for performance events for the guest. The $params should be a hash reference
whose keys are one of the PERF EVENTS constants. The $flags parameter accepts one or more the CONFIG
OPTION constants documented later, and defaults to 0 if omitted.
$dom->block_resize($disk, $newsize, $flags=0)
Resize the disk $disk to have new size $newsize KB. If the disk is backed by a special image format,
the actual resize is done by the hypervisor. If the disk is backed by a raw file, or block device,
the resize must be done prior to invoking this API call, and it merely updates the hypervisor's view
of the disk size. The following flags may be used
Sys::Virt::Domain::BLOCK_RESIZE_BYTES
Treat $newsize as if it were in bytes, rather than KB.
Sys::Virt::Domain::BLOCK_RESIZE_CAPACITY
Resize to full the capacity of the source
$dom->interface_stats($path)
Fetch the current I/O statistics for the block device given by $path. The returned hash contains
keys for
"rx_bytes"
Total bytes received
"rx_packets"
Total packets received
"rx_errs"
Total packets received with errors
"rx_drop"
Total packets drop at reception
"tx_bytes"
Total bytes transmitted
"tx_packets"
Total packets transmitted
"tx_errs"
Total packets transmitted with errors
"tx_drop"
Total packets dropped at transmission.
$dom->memory_stats($flags=0)
Fetch the current memory statistics for the guest domain. The $flags parameter is currently unused
and can be omitted. The returned hash contains keys for
"swap_in"
Data read from swap space
"swap_out"
Data written to swap space
"major_fault"
Page fault involving disk I/O
"minor_fault"
Page fault not involving disk I/O
"unused"
Memory not used by the system
"available"
Total memory seen by guest
"rss"
Resident set size. Size of memory resident in host RAM.
$info = $dom->get_security_label()
Fetch information about the security label assigned to the guest domain. The returned hash reference
has two keys, "model" gives the name of the security model in effect (e.g. "selinux"), while "label"
provides the name of the security label applied to the domain. This method only returns information
about the first security label. To retrieve all labels, use "get_security_label_list".
@info = $dom->get_security_label_list()
Fetches information about all security labels assigned to the guest domain. The elements in the
returned array are all hash references, whose keys are as described for "get_security_label".
$ddom = $dom->migrate(destcon, \%params, flags=0)
Migrate a domain to an alternative host. The "destcon" parameter should be a "Sys::Virt" connection
to the remote target host. The "flags" parameter takes one or more of the
"Sys::Virt::Domain::MIGRATE_XXX" constants described later in this document. The %params parameter is
a hash reference used to set various parameters for the migration operation, with the following valid
keys.
"Sys::Virt::Domain::MIGRATE_PARAM_URI"
The URI to use for initializing the domain migration. It takes a hypervisor specific format. The
uri_transports element of the hypervisor capabilities XML includes details of the supported URI
schemes. When omitted libvirt will auto-generate suitable default URI. It is typically only
necessary to specify this URI if the destination host has multiple interfaces and a specific
interface is required to transmit migration data.
"Sys::Virt::Domain::MIGRATE_PARAM_DEST_NAME"
The name to be used for the domain on the destination host. Omitting this parameter keeps the
domain name the same. This field is only allowed to be used with hypervisors that support domain
renaming during migration.
"Sys::Virt::Domain::MIGRATE_PARAM_DEST_XML"
The new configuration to be used for the domain on the destination host. The configuration must
include an identical set of virtual devices, to ensure a stable guest ABI across migration. Only
parameters related to host side configuration can be changed in the XML. Hypervisors which
support this field will forbid migration if the provided XML would cause a change in the guest
ABI. This field cannot be used to rename the domain during migration (use
VIR_MIGRATE_PARAM_DEST_NAME field for that purpose). Domain name in the destination XML must
match the original domain name.
Omitting this parameter keeps the original domain configuration. Using this field with
hypervisors that do not support changing domain configuration during migration will result in a
failure.
"Sys::Virt::Domain::MIGRATE_PARAM_GRAPHICS_URI"
URI to use for migrating client's connection to domain's graphical console as
VIR_TYPED_PARAM_STRING. If specified, the client will be asked to automatically reconnect using
these parameters instead of the automatically computed ones. This can be useful if, e.g., the
client does not have a direct access to the network virtualization hosts are connected to and
needs to connect through a proxy. The URI is formed as follows:
protocol://hostname[:port]/[?parameters]
where protocol is either "spice" or "vnc" and parameters is a list of protocol specific
parameters separated by '&'. Currently recognized parameters are "tlsPort" and "tlsSubject". For
example,
spice://target.host.com:1234/?tlsPort=4567
"Sys::Virt::Domain::MIGRATE_PARAM_BANDWIDTH"
The maximum bandwidth (in MiB/s) that will be used for migration. If set to 0 or omitted, libvirt
will choose a suitable default. Some hypervisors do not support this feature and will return an
error if this field is used and is not 0.
"Sys::Virt::Domain::MIGRATE_PARAM_BANDWIDTH_POSTCOPY"
The maximum bandwidth (in MiB/s) that will be used for migration during post-copy phase. If set
to 0 or omitted, libvirt will choose a suitable default. Some hypervisors do not support this
feature and return an error if this field is used and is not 0.
"Sys::Virt::Domain::MIGRATE_PARAM_LISTEN_ADDRESS"
The address on which to listen for incoming migration connections. If omitted, libvirt will
listen on the wildcard address (0.0.0.0 or ::). This default may be a security risk if guests, or
other untrusted users have the ability to connect to the virtualization host, thus use of an
explicit restricted listen address is recommended.
"Sys::Virt::Domain::MIGRATE_PARAM_DISK_PORT"
Port that destination server should use for incoming disks migration. Type is
VIR_TYPED_PARAM_INT. If set to 0 or omitted, libvirt will choose a suitable default. At the
moment this is only supported by the QEMU driver.
"Sys::Virt::Domain::MIGRATE_PARAM_MIGRATE_DISKS"
The list of disks to migrate when doing block storage migration. In contrast to other parameters
whose values are plain strings, the parameter value should be an array reference, whose elements
are in turn strings representing the disk target names.
"Sys::Virt::Domain::MIGRATE_PARAM_COMPRESSION"
The type of compression method use use, either "xbzrle" or "mt".
"Sys::Virt::Domain::MIGRATE_PARAM_COMPRESSION_MT_THREADS"
The number of compression threads to use
"Sys::Virt::Domain::MIGRATE_PARAM_COMPRESSION_MT_DTHREADS"
The number of decompression threads
"Sys::Virt::Domain::MIGRATE_PARAM_COMPRESSION_MT_LEVEL"
The compression level from 0 (no compression) to 9 (maximum compression)
"Sys::Virt::Domain::MIGRATE_PARAM_COMPRESSION_XBZRLE_CACHE"
The size of the cache for xbzrle compression
"Sys::Virt::Domain::MIGRATE_PARAM_PERSIST_XML"
The alternative persistent XML config to copy
"Sys::Virt::Domain::MIGRATE_PARAM_AUTO_CONVERGE_INITIAL"
The initial percentage to throttle guest vCPUs
"Sys::Virt::Domain::MIGRATE_PARAM_AUTO_CONVERGE_INCREMENT"
The additional percentage step size to throttle guest vCPUs if progress is not made
"Sys::Virt::Domain::MIGRATE_PARAM_PARALLEL_CONNECTIONS"
The number of connections used during parallel migration.
"Sys::Virt::Domain::MIGRATE_PARAM_TLS_DESTINATION"
Override the destination host name used for TLS verification. Normally the TLS certificate from
the destination host must match the host's name for TLS verification to succeed. When the
certificate does not match the destination hostname and the expected certificate's hostname is
known, this parameter can be used to pass this expected hostname when starting the migration.
"Sys::Virt::Domain::MIGRATE_PARAM_DISKS_URI"
The URI to use for initializing the domain migration for storage. It takes a hypervisor specific
format. The uri_transports element of the hypervisor capabilities XML includes details of the
supported URI schemes. When omitted libvirt will auto-generate suitable default URI. It is
typically only necessary to specify this URI if the destination host has multiple interfaces and
a specific interface is required to transmit storage data.
"Sys::Virt::Domain::MIGRATE_PARAM_ZLIB_LEVEL"
The level of compression for zlib. Accepted values are in range 0-9. 0 is no compression, 1 is
maximum speed and 9 is maximum compression.
"Sys::Virt::Domain::MIGRATE_PARAM_ZSTD_LEVEL"
The level of compression for zstd. Accepted values are in range 0-20. 0 is no compression, 1 is
maximum speed and 20 is maximum compression.
"Sys::Virt::Domain::MIGRATE_PARAM_DISKS_DETECT_ZEROES"
Enable zero detection on list of disks to avoid transferring zero blocks. Users must ensure that
any pre-created storage source on the destination will be cleared and thus read all-zeroes before
using this feature, otherwise the destination image may become corrupted. In contrast to other
parameters whose values are plain strings, the parameter value should be an array reference,
whose elements are in turn strings representing the disk target names.
$ddom = $dom->migrate(destcon, flags=0, dname=undef, uri=undef, bandwidth=0)
Migrate a domain to an alternative host. Use of positional parameters with "migrate" is deprecated in
favour of passing a hash reference as described above.
$ddom = $dom->migrate2(destcon, dxml, flags, dname, uri, bandwidth)
Migrate a domain to an alternative host. This method is deprecated in favour of passing a hash ref to
"migrate".
$ddom = $dom->migrate_to_uri(desturi, \%params, flags=0)
Migrate a domain to an alternative host. The "desturi" parameter should be a valid libvirt connection
URI for the remote target host. The "flags" parameter takes one or more of the
"Sys::Virt::Domain::MIGRATE_XXX" constants described later in this document. The %params parameter is
a hash reference used to set various parameters for the migration operation, with the same keys
described for the "migrate" API.
$dom->migrate_to_uri(desturi, flags, dname, bandwidth)
Migrate a domain to an alternative host. Use of positional parameters with "migrate_to_uri" is
deprecated in favour of passing a hash reference as described above.
$dom->migrate_to_uri2(dconnuri, miguri, dxml, flags, dname, bandwidth)
Migrate a domain to an alternative host. This method is deprecated in favour of passing a hash ref to
"migrate_to_uri".
$dom->migrate_set_max_downtime($downtime, $flags=0)
Set the maximum allowed downtime during migration of the guest. A longer downtime makes it more
likely that migration will complete, at the cost of longer time blackout for the guest OS at the
switch over point. The "downtime" parameter is measured in milliseconds. The $flags parameter is
currently unused and defaults to zero.
$downtime = $dom->migrate_get_max_downtime($flags=0)
Get the current value of the maximum downtime allowed during a migration of a guest. The returned
<downtime> value is measured in milliseconds. The $flags parameter is currently unused and defaults
to zero.
$dom->migrate_set_max_speed($bandwidth, $flags=0)
Set the maximum allowed bandwidth during migration of the guest. The "bandwidth" parameter is
measured in MB/second. The $flags parameter takes zero or more of the constants:
$Sys::Virt::Domain::MIGRATE_MAX_SPEED_POSTCOPY
Set the post-copy speed instead of the pre-copy speed.
$bandwidth = $dom->migrate_get_max_speed($flags=0)
Get the maximum allowed bandwidth during migration of the guest. The returned <bandwidth> value is
measured in MB/second. The $flags parameter is accepts the same constants as
"migrate_set_max_speed".
$dom->migrate_set_compression_cache($cacheSize, $flags=0)
Set the maximum allowed compression cache size during migration of the guest. The "cacheSize"
parameter is measured in bytes. The $flags parameter is currently unused and defaults to zero.
$cacheSize = $dom->migrate_get_compression_cache($flags=0)
Get the maximum allowed compression cache size during migration of the guest. The returned
<bandwidth> value is measured in bytes. The $flags parameter is currently unused and defaults to
zero.
$dom->migrate_start_post_copy($flags=0)
Switch the domain from pre-copy to post-copy mode. This requires that the original migrate command
had the "Sys::Virt::Domain::MIGRATE_POST_COPY" flag specified.
$dom->inject_nmi($flags)
Trigger an NMI in the guest virtual machine. The $flags parameter is currently unused and defaults to
0.
$dom->open_console($st, $devname, $flags)
Open the text console for a serial, parallel or paravirt console device identified by $devname,
connecting it to the stream $st. If $devname is undefined, the default console will be opened. $st
must be a "Sys::Virt::Stream" object used for bi-directional communication with the console. $flags
is currently unused, defaulting to 0.
$dom->open_channel($st, $devname, $flags)
Open the text console for a data channel device identified by $devname, connecting it to the stream
$st. $st must be a "Sys::Virt::Stream" object used for bi-directional communication with the channel.
$flags is currently unused, defaulting to 0.
$dom->open_graphics($idx, $fd, $flags)
Open the graphics console for a guest, identified by $idx, counting from 0. The $fd should be a file
descriptor for an anonymous socket pair. The $flags argument should be one of the constants listed at
the end of this document, and defaults to 0.
$fd = $dom->open_graphics_fd($idx, $flags)
Open the graphics console for a guest, identified by $idx, counting from 0. The $flags argument
should be one of the constants listed at the end of this document, and defaults to 0. The return
value will be a file descriptor connected to the console which must be closed when no longer needed.
This method is preferred over "open_graphics" since it will work correctly under sVirt mandatory
access control policies.
my $mimetype = $dom->screenshot($st, $screen, $flags)
Capture a screenshot of the virtual machine's monitor. The $screen parameter controls which monitor
is captured when using a multi-head or multi-card configuration. $st must be a "Sys::Virt::Stream"
object from which the data can be read. $flags is currently unused and defaults to 0. The mimetype of
the screenshot is returned
@vcpuinfo = $dom->get_vcpu_info($flags=0)
Obtain information about the state of all virtual CPUs in a running guest domain. The returned list
will have one element for each vCPU, where each elements contains a hash reference. The keys in the
hash are, "number" the vCPU number, "cpu" the physical CPU on which the vCPU is currently scheduled,
"cpuTime" the cumulative execution time of the vCPU, "state" the running state and "affinity" giving
the allowed scheduler placement. The value for "affinity" is a string representing a bitmask against
physical CPUs, 8 cpus per character. To extract the bits use the "unpack" function with the "b*"
template. NB The "state", "cpuTime", "cpu" values are only available if using $flags value of 0, and
the domain is currently running; otherwise they will all be set to zero.
$dom->pin_vcpu($vcpu, $mask)
Pin the virtual CPU given by index $vcpu to physical CPUs given by $mask. The $mask is a string
representing a bitmask against physical CPUs, 8 cpus per character.
$mask = $dom->get_emulator_pin_info()
Obtain information about the CPU affinity of the emulator process. The returned $mask is a bitstring
against physical CPUs, 8 cpus per character. To extract the bits use the "unpack" function with the
"b*" template.
$dom->pin_emulator($newmask, $flags=0)
Pin the emulator threads to the physical CPUs identified by the affinity in $newmask. The $newmask is
a bitstring against the physical CPUa, 8 cpus per character. To create a suitable bitstring, use the
"vec" function with a value of 1 for the "BITS" parameter.
@iothreadinfo = $dom->get_iothread_info($flags=0)
Obtain information about the state of all IOThreads in a running guest domain. The returned list will
have one element for each IOThread, where each elements contains a hash reference. The keys in the
hash are, "number" the IOThread number and "affinity" giving the allowed scheduler placement. The
value for "affinity" is a string representing a bitmask against physical CPUs, 8 cpus per character.
To extract the bits use the "unpack" function with the "b*" template.
$dom->pin_iothread($iothread, $mask)
Pin the IOThread given by index $iothread to physical CPUs given by $mask. The $mask is a string
representing a bitmask against physical CPUs, 8 cpus per character.
$dom->add_iothread($iothread, $flags=0)
Add a new IOThread by the $iothread value to the guest domain. The $flags parameter accepts one or
more the CONFIG OPTION constants documented later, and defaults to 0 if omitted.
$dom->del_iothread($iothread, $flags=0)
Delete an existing IOThread by the $iothread value from the guest domain. The $flags parameter
accepts one or more the CONFIG OPTION constants documented later, and defaults to 0 if omitted.
$dom->set_iothread($iothread, $params, $flags=0)
Set parameters for the IOThread by the $iothread value on the guest domain. The $params parameter is
a hash reference whose keys are the "IOTHREAD STATS" constants documented later. The $flags
parameter accepts one or more the CONFIG OPTION constants documented later, and defaults to 0 if
omitted.
my @stats = $dom->get_cpu_stats($startCpu, $numCpus, $flags=0)
Requests the guests host physical CPU usage statistics, starting from host CPU <$startCpu> counting
up to $numCpus. If $startCpu is -1 and $numCpus is 1, then the utilization across all CPUs is
returned. Returns an array of hash references, each element containing stats for one CPU.
my $info = $dom->get_job_info()
Returns a hash reference summarising the execution state of the background job. The elements of the
hash are as follows:
type
The type of job, one of the JOB TYPE constants listed later in this document.
timeElapsed
The elapsed time in milliseconds
timeRemaining
The expected remaining time in milliseconds. Only set if the "type" is JOB_UNBOUNDED.
dataTotal
The total amount of data expected to be processed by the job, in bytes.
dataProcessed
The current amount of data processed by the job, in bytes.
dataRemaining
The expected amount of data remaining to be processed by the job, in bytes.
memTotal
The total amount of memory expected to be processed by the job, in bytes.
memProcessed
The current amount of memory processed by the job, in bytes.
memRemaining
The expected amount of memory remaining to be processed by the job, in bytes.
fileTotal
The total amount of file expected to be processed by the job, in bytes.
fileProcessed
The current amount of file processed by the job, in bytes.
fileRemaining
The expected amount of file remaining to be processed by the job, in bytes.
my ($type, $stats) = $dom->get_job_stats($flags=0)
Returns an array summarising the execution state of the background job. The $type value is one of the
JOB TYPE constants listed later in this document. The $stats value is a hash reference, whose
elements are one of the following constants.
type
The type of job, one of the JOB TYPE constants listed later in this document.
The $flags parameter defaults to zero and can take one of the following constants.
Sys::Virt::Domain::JOB_STATS_COMPLETED
Return the stats of the most recently completed job.
Sys::Virt::Domain::JOB_STATS_KEEP_COMPLETED
Don't clear the completed stats after reading them.
Sys::Virt::Domain::JOB_TIME_ELAPSED
The elapsed time in milliseconds
Sys::Virt::Domain::JOB_TIME_ELAPSED_NET
Time in milliseconds since the beginning of the migration job NOT including the time required to
transfer control flow from the source host to the destination host.
Sys::Virt::Domain::JOB_TIME_REMAINING
The expected remaining time in milliseconds. Only set if the "type" is JOB_UNBOUNDED.
Sys::Virt::Domain::JOB_DATA_TOTAL
The total amount of data expected to be processed by the job, in bytes.
Sys::Virt::Domain::JOB_DATA_PROCESSED
The current amount of data processed by the job, in bytes.
Sys::Virt::Domain::JOB_DATA_REMAINING
The expected amount of data remaining to be processed by the job, in bytes.
Sys::Virt::Domain::JOB_MEMORY_TOTAL
The total amount of memory expected to be processed by the job, in bytes.
Sys::Virt::Domain::JOB_MEMORY_PROCESSED
The current amount of memory processed by the job, in bytes.
Sys::Virt::Domain::JOB_MEMORY_REMAINING
The expected amount of memory remaining to be processed by the job, in bytes.
Sys::Virt::Domain::JOB_MEMORY_CONSTANT
The number of pages filled with a constant byte which have been transferred
Sys::Virt::Domain::JOB_MEMORY_NORMAL
The number of pages transferred without any compression
Sys::Virt::Domain::JOB_MEMORY_NORMAL_BYTES
The number of bytes transferred without any compression
Sys::Virt::Domain::JOB_MEMORY_BPS
The bytes per second transferred
Sys::Virt::Domain::JOB_MEMORY_DIRTY_RATE
The number of memory pages dirtied per second
Sys::Virt::Domain::JOB_MEMORY_PAGE_SIZE
The memory page size in bytes
Sys::Virt::Domain::JOB_MEMORY_ITERATION
The total number of iterations over guest memory
Sys::Virt::Domain::JOB_MEMORY_POSTCOPY_REQS
The number of page requests received from the destination host during post-copy migration.
Sys::Virt::Domain::JOB_DISK_TOTAL
The total amount of file expected to be processed by the job, in bytes.
Sys::Virt::Domain::JOB_DISK_PROCESSED
The current amount of file processed by the job, in bytes.
Sys::Virt::Domain::JOB_DISK_REMAINING
The expected amount of file remaining to be processed by the job, in bytes.
Sys::Virt::Domain::JOB_DISK_BPS
The bytes per second transferred
Sys::Virt::Domain::JOB_AUTO_CONVERGE_THROTTLE
The percentage by which vCPUs are currently throttled
Sys::Virt::Domain::JOB_COMPRESSION_CACHE
The size of the compression cache in bytes
Sys::Virt::Domain::JOB_COMPRESSION_BYTES
The number of compressed bytes transferred
Sys::Virt::Domain::JOB_COMPRESSION_PAGES
The number of compressed pages transferred
Sys::Virt::Domain::JOB_COMPRESSION_CACHE_MISSES
The number of changing pages not in compression cache
Sys::Virt::Domain::JOB_COMPRESSION_OVERFLOW
The number of changing pages in the compression cache but sent uncompressed since the compressed
page was larger than the non-compressed page.
Sys::Virt::Domain::JOB_DOWNTIME
The number of milliseconds of downtime expected during migration switchover.
Sys::Virt::Domain::JOB_DOWNTIME_NET
Real measured downtime (ms) NOT including the time required to transfer control flow from the
source host to the destination host.
Sys::Virt::Domain::JOB_SETUP_TIME
The number of milliseconds of time doing setup of the job
Sys::Virt::Domain::JOB_OPERATION
The type of operation associated with the job
Sys::Virt::Domain::JOB_SUCCESS
Whether the job was successfully completed.
Sys::Virt::Domain::JOB_DISK_TEMP_TOTAL
Possible total temporary disk space for the job in bytes
Sys::Virt::Domain::JOB_DISK_TEMP_USED
Current total temporary disk space for the job in bytes
Sys::Virt::Domain::JOB_ERRMSG
The error message from a failed job
Sys::Virt::Domain::JOB_VFIO_DATA_TRANSFERRED
Total data transferred for VFIO devices
The values for the Sys::Virt::Domain::JOB_OPERATION field are
Sys::Virt::Domain::JOB_OPERATION_UNKNOWN
No known job type
Sys::Virt::Domain::JOB_OPERATION_START
The guest is starting
Sys::Virt::Domain::JOB_OPERATION_SAVE
The guest is saving to disk
Sys::Virt::Domain::JOB_OPERATION_RESTORE
The guest is restoring from disk
Sys::Virt::Domain::JOB_OPERATION_MIGRATION_IN
The guest is migrating in from another host
Sys::Virt::Domain::JOB_OPERATION_MIGRATION_OUT
The guest is migrating out to another host
Sys::Virt::Domain::JOB_OPERATION_SNAPSHOT
The guest is saving a snapshot
Sys::Virt::Domain::JOB_OPERATION_SNAPSHOT_REVERT
The guest is reverting to a snapshot
Sys::Virt::Domain::JOB_OPERATION_DUMP
The guest is saving a crash dump
Sys::Virt::Domain::JOB_OPERATION_BACKUP
The guest is performing a block backup
Sys::Virt::Domain::JOB_OPERATION_SNAPSHOT_DELETE
The guest is deleting a snapshot
$dom->abort_job($flags=0)
Aborts the currently executing job. Valid $flags include:
Sys::Virt::Domain::DOMAIN_ABORT_JOB_POSTCOPY
Interrupt post-copy migration. It can later be resumed using migrate APIs with
"MIGRATE_POSTCOPY_RESUME" flag.
my $info = $dom->get_block_job_info($path, $flags=0)
Returns a hash reference summarising the execution state of the block job. The $path parameter should
be the fully qualified path of the block device being changed. Valid $flags include:
Sys::Virt::Domain::BLOCK_JOB_INFO_BANDWIDTH_BYTES
Treat bandwidth value as bytes instead of MiB.
$dom->set_block_job_speed($path, $bandwidth, $flags=0)
Change the maximum I/O bandwidth used by the block job that is currently executing for $path. The
$bandwidth argument is specified in MB/s. The $flags parameter can take the bitwise union of the
values:
Sys::Virt::Domain::BLOCK_JOB_SPEED_BANDWIDTH_BYTES
The $bandwidth parameter value is measured in bytes/s instead of MB/s.
$dom->abort_block_job($path, $flags=0)
Abort the current job that is executing for the block device associated with $path
$dom->block_pull($path, $bandwidth, $flags=0)
Merge the backing files associated with $path into the top level file. The $bandwidth parameter
specifies the maximum I/O rate to allow in MB/s. The $flags parameter can take the bitwise union of
the values:
Sys::Virt::Domain::BLOCK_PULL_BANDWIDTH_BYTES
The $bandwidth parameter value is measured in bytes/s instead of MB/s.
$dom->block_rebase($path, $base, $bandwidth, $flags=0)
Switch the backing path associated with $path to instead use $base. The $bandwidth parameter
specifies the maximum I/O rate to allow in MB/s. The $flags parameter can take the bitwise union of
the values:
Sys::Virt::Domain::BLOCK_REBASE_BANDWIDTH_BYTES
The $bandwidth parameter value is measured in bytes/s instead of MB/s.
$dom->block_copy($path, $destxml, $params, $flags=0)
Copy contents of a disk image <$path> into the target volume described by $destxml which follows the
schema of the <disk> element in the domain XML. The $params parameter is a hash of optional
parameters to control the process
Sys::Virt::Domain::BLOCK_COPY_BANDWIDTH
The maximum bandwidth in bytes per second.
Sys::Virt::Domain::BLOCK_COPY_GRANULARITY
The granularity in bytes of the copy process
Sys::Virt::Domain::BLOCK_COPY_BUF_SIZE
The maximum amount of data in flight in bytes.
$dom->block_commit($path, $base, $top, $bandwidth, $flags=0)
Commit changes there were made to the temporary top level file $top. Takes all the differences
between $top and $base and merge them into $base. The $bandwidth parameter specifies the maximum I/O
rate to allow in MB/s. The $flags parameter can take the bitwise union of the values:
Sys::Virt::Domain::BLOCK_COMMIT_BANDWIDTH_BYTES
The $bandwidth parameter value is measured in bytes instead of MB/s.
$count = $dom->num_of_snapshots()
Return the number of saved snapshots of the domain
@names = $dom->list_snapshot_names()
List the names of all saved snapshots. The names can be used with the "lookup_snapshot_by_name"
@snapshots = $dom->list_snapshots()
Return a list of all snapshots currently known to the domain. The elements in the returned list are
instances of the Sys::Virt::DomainSnapshot class. This method requires O(n) RPC calls, so the
"list_all_snapshots" method is recommended as a more efficient alternative.
my @snapshots = $dom->list_all_snapshots($flags)
Return a list of all domain snapshots associated with this domain. The elements in the returned list
are instances of the Sys::Virt::DomainSnapshot class. The $flags parameter can be used to filter the
list of return domain snapshots.
my $snapshot = $dom->get_snapshot_by_name($name)
Return the domain snapshot with a name of $name. The returned object is an instance of the
Sys::Virt::DomainSnapshot class.
$dom->has_current_snapshot()
Returns a true value if the domain has a currently active snapshot
$snapshot = $dom->current_snapshot()
Returns the currently active snapshot for the domain.
$snapshot = $dom->create_snapshot($xml[, $flags])
Create a new snapshot from the $xml. The $flags parameter accepts the SNAPSHOT CREATION constants
listed in "Sys::Virt::DomainSnapshots".
my @checkpoints = $dom->list_all_checkpoints($flags)
Return a list of all domain checkpoints associated with this domain. The elements in the returned
list are instances of the Sys::Virt::DomainCheckpoint class. The $flags parameter can be used to
filter the list of return domain checkpoints.
my $checkpoint = $dom->get_checkpoint_by_name($name)
Return the domain checkpoint with a name of $name. The returned object is an instance of the
Sys::Virt::DomainCheckpoint class.
$checkpoint = $dom->create_checkpoint($xml[, $flags])
Create a new checkpoint from the $xml. The $flags parameter accepts the CHECKPOINT CREATION constants
listed in "Sys::Virt::DomainCheckpoints".
$dom->backup_begin($backupxml, $checkpointxml=undef, $flags=0);
Start a point-in-time backup job for the specified disks of a running domain. The $backupxml
parameter describes the backup operation, including which disks to use. The optional $checkpointxml
parameter can be used to create a checkpoint covering to the same point in time as the backup. The
optional $flags parameter can be one of the following constants:
Sys::Virt::Domain::BACKUP_BEGIN_REUSE_EXTERNAL
Assume that the output/temporary files for the backup have been precreated by the caller with the
correct size and format.
$xml = $dom->backup_get_xml_description($flags=0);
Get the XML description of the currently executing backup job. If there is no backup job then an
error is raised.
$dom->fs_trim($mountPoint, $minimum, $flags=0);
Issue an FS_TRIM command to the device at $mountPoint to remove chunks of unused space that are at
least $minimum bytes in length. $flags is currently unused and defaults to zero.
$dom->fs_freeze(\@mountPoints, $flags=0);
Freeze all the filesystems associated with the @mountPoints array reference. If <@mountPoints> is an
empty list, then all filesystems will be frozen. $flags is currently unused and defaults to zero.
$dom->fs_thaw(\@mountPoints, $flags=0);
Thaw all the filesystems associated with the @mountPoints array reference. If <@mountPoints> is an
empty list, then all filesystems will be thawed. $flags is currently unused and defaults to zero.
@fslist = $dom->get_fs_info($flags=0);
Obtain a list of all guest filesystems. The returned list will contain one element for each
filesystem, whose value will be a hash reference with the following keys
name
The name of the guest device that is mounted
fstype
The filesystem type (e.g. 'ext4', 'fat', 'ntfs', etc)
mountpoint
The location in the filesystem tree of the mount
devalias
An array reference containing list of device aliases associated with the guest device. The device
aliases correspond to disk target names in the guest XML configuration
@nics = $dom->get_interface_addresses($src, $flags=0);
Obtain a list of all guest network interfaces. The $src parameter is one of the constants
Sys::Virt::Domain::INTERFACE_ADDRESSES_SRC_LEASE
Extract the DHCP server lease information
Sys::Virt::Domain::INTERFACE_ADDRESSES_SRC_AGENT
Query the guest OS via an agent
Sys::Virt::Domain::INTERFACE_ADDRESSES_SRC_ARP
Extract from the local ARP tables
The returned list will contain one element for each interface. The values in the list will be a hash
reference with the following keys
name
The name of the guest interface that is mounted
hwaddr
The hardware address, aka MAC, if available.
addrs
An array reference containing list of IP addresses associated with the guest NIC. Each element in
the array is a further hash containing
addr
The IP address string
prefix
The IP address network prefix
type
The IP address type (IPv4 vs IPv6)
$dom->send_process_signal($pid, $signum, $flags=0);
Send the process $pid the signal $signum. The $signum value must be one of the constants listed
later, not a POSIX or Linux signal value. $flags is currently unused and defaults to zero.
$dom->set_block_threshold($dev, $threshold, $flags=0);
Set the threshold level for delivering the EVENT_ID_BLOCK_THRESHOLD if the device or backing chain
element described by $dev is written beyond the set $threshold level. The threshold level is unset
once the event fires. The event might not be delivered at all if libvirtd was not running at the
moment when the threshold was reached.
$dom->set_lifecycle_action($type, $action, $flags=0)
Changes the actions of lifecycle events for domain represented as <on_$type>$action</on_$type> in the
domain XML.
$info = $dom->get_launch_security_info($flags=0)
Get information about the domain launch security policy. $flags is currently unused and defaults to
zero. The returned hash may contain the following keys
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_MEASUREMENT
The AMD SEV launch measurement
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_API_MAJOR
The host SEV API major version
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_API_MINOR
The host SEV API minor version
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_BUILD_ID
The host SEV firmware build ID
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_POLICY
The guest SEV policy
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_SNP_POLICY
The guest SEV-SNP policy
$dom->set_launch_security_state(\%params, $flags=0)
Set information about the domain launch security state. $flags is currently unused and defaults to
zero. The provided hash may contain the following keys
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_SECRET
The SEV secret string to inject
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_SECRET_HEADER
The SEV secret header string to inject
Sys::Virt::Domain::LAUNCH_SECURITY_SEV_SECRET_SET_ADDRESS
The address at which to inject the SEV secret. If omitted it can be automatically determined from
the firmware
$info = $dom->get_guest_info($types, $flags=0)
Get information about the domain guest configuration. The $types parameter determines what pieces of
information are returned and should be the bitwise or of the following constants:
Sys::Virt::Domain::GUEST_INFO_USERS
Active user information
Sys::Virt::Domain::GUEST_INFO_OS
Misc operating system information
Sys::Virt::Domain::GUEST_INFO_TIMEZONE
The guest timezone
Sys::Virt::Domain::GUEST_INFO_HOSTNAME
The guest hostname
Sys::Virt::Domain::GUEST_INFO_FILESYSTEM
Filesystem mount information
Sys::Virt::Domain::GUEST_INFO_DISKS
Block device information
Sys::Virt::Domain::GUEST_INFO_INTERFACES
Network interfaces information
$flags is currently unused and defaults to zero.
$dom->set_agent_response_timeout($timeout, $flags=0)
Set the amount of time to wait for the agent to respond to a command. $timeout is a positive integer
representing the number of seconds to wait, or one of the constants:
Sys::Virt::Domain::AGENT_RESPONSE_TIMEOUT_BLOCK
Wait forever with no timeout
Sys::Virt::Domain::AGENT_RESPONSE_TIMEOUT_NOWAIT
Don't want at all, return immediately
Sys::Virt::Domain::AGENT_RESPONSE_TIMEOUT_DEFAULT
Use the hypervisor driver's default timeout
The $flags parameter is currently unused and defaults to zero.
my @keys = $dom->authorized_ssh_keys_get($user, $flags=0)
Retrieve the list of authorized SSH keys for the user account $user. The $flags parameter is
currently unused and defaults to zero.
$dom->authorized_ssh_keys_set($user, \@keys, $flags=0)
Update the list of authorized SSH keys for the user account $user. The @keys parameter should be an
array reference containing the new keys, if any. The default behaviour is to set the authorized SSH
keys to the exact set specified in @keys. This can be modified via the $flags parameter which takes
the following constants
Sys::Virt::Domain::AUTHORIZED_SSH_KEYS_SET_APPEND
Append @keys to the current set of keys, rather than replacing the existing keys.
Sys::Virt::Domain::AUTHORIZED_SSH_KEYS_SET_REMOVE
Remove @keys from the current set of keys, rather than replacing the existing keys. It is not an
error if the keys do not exist.
my @msgs = $dom->get_messages($flags=0)
Retrieve a list of messages associated with the domain. The optional $flags parameter can accept zero
or more of
Sys::Virt::Domain::MESSAGE_DEPRECATION
Warnings about use of deprecated features
Sys::Virt::Domain::MESSAGE_TAINTING
Warnings about actions that have tainting the domain
$dom->start_dirty_rate_calc($dom, $secs, $flags=0)
Request calculation of the domain's memory dirty rate over the next $secs seconds. $flags accepts one
or more of
Sys::Virt::Domain::DIRTYRATE_MODE_PAGE_SAMPLING
Page sampling mode
Sys::Virt::Domain::DIRTYRATE_MODE_DIRTY_BITMAP
Dirty bitmap mode
Sys::Virt::Domain::DIRTYRATE_MODE_DIRTY_RING
Dirty ring mode
$dom->fd_associate($name, \@fds, $flags=0)
Associate a set of file descriptors in @fds with the domain, giving them the name $name. If $flags is
non-zero, it can take one or more of:
Sys::Virt::Domain::FD_ASSOCIATE_SECLABEL_RESTORE
Attempt to restore the label when shutting down
Sys::Virt::Domain::FD_ASSOCIATE_SECLABEL_WRITABLE
Label the FD to permit the guest to write to it.
$dom->graphics_reload($type, $flags=0)
Request a reload of graphics backend state. The $type parameter specifies what type of graphics
backend to reload if there are multiple present. It takes one of the constants:
Sys::Virt::Domain::GRAPHICS_RELOAD_TYPE_ANY
Reload state for any graphics backend type
Sys::Virt::Domain::GRAPHICS_RELOAD_TYPE_VNC
Reload state for only VNC graphics backends
The $flags parameter is currently unused and defaults to zero.
CONSTANTS
A number of the APIs take a "flags" parameter. In most cases passing a value of zero will be
satisfactory. Some APIs, however, accept named constants to alter their behaviour. This section documents
the current known constants.
DOMAIN STATE
The domain state constants are useful in interpreting the "state" key in the hash returned by the
"get_info" method.
Sys::Virt::Domain::STATE_NOSTATE
The domain is active, but is not running / blocked (e.g. idle)
Sys::Virt::Domain::STATE_RUNNING
The domain is active and running
Sys::Virt::Domain::STATE_BLOCKED
The domain is active, but execution is blocked
Sys::Virt::Domain::STATE_PAUSED
The domain is active, but execution has been paused
Sys::Virt::Domain::STATE_SHUTDOWN
The domain is active, but in the shutdown phase
Sys::Virt::Domain::STATE_SHUTOFF
The domain is inactive, and shut down.
Sys::Virt::Domain::STATE_CRASHED
The domain is inactive, and crashed.
Sys::Virt::Domain::STATE_PMSUSPENDED
The domain is active, but in power management suspend state
CONTROL INFO
The following constants can be used to determine what the guest domain control channel status is
Sys::Virt::Domain::CONTROL_ERROR
The control channel has a fatal error
Sys::Virt::Domain::CONTROL_OK
The control channel is ready for jobs
Sys::Virt::Domain::CONTROL_OCCUPIED
The control channel is busy
Sys::Virt::Domain::CONTROL_JOB
The control channel is busy with a job
If the status is "Sys::Virt::Domain::CONTROL_ERROR", then one of the following constants describes the
reason
Sys::Virt::Domain::CONTROL_ERROR_REASON_NONE
There is no reason for the error available
Sys::Virt::Domain::CONTROL_ERROR_REASON_UNKNOWN
The reason for the error is unknown
Sys::Virt::Domain::CONTROL_ERROR_REASON_INTERNAL
There was an internal error in libvirt
Sys::Virt::Domain::CONTROL_ERROR_REASON_MONITOR
There was an error speaking to the monitor
DOMAIN CREATION
The following constants can be used to control the behaviour of domain creation
Sys::Virt::Domain::START_PAUSED
Keep the guest vCPUs paused after starting the guest
Sys::Virt::Domain::START_AUTODESTROY
Automatically destroy the guest when the connection is closed (or fails)
Sys::Virt::Domain::START_BYPASS_CACHE
Do not use OS I/O cache if starting a domain with a saved state image
Sys::Virt::Domain::START_FORCE_BOOT
Boot the guest, even if there was a saved snapshot
Sys::Virt::Domain::START_VALIDATE
Validate the XML document against the XML schema
Sys::Virt::Domain::START_RESET_NVRAM
Reset the firmware NVRAM state from its original template
DOMAIN DEFINE
The following constants can be used to control the behaviour of domain define operations
Sys::Virt::Domain::DEFINE_VALIDATE
Validate the XML document against the XML schema
KEYCODE SETS
The following constants define the set of supported keycode sets
Sys::Virt::Domain::KEYCODE_SET_LINUX
The Linux event subsystem keycodes
Sys::Virt::Domain::KEYCODE_SET_XT
The original XT keycodes
Sys::Virt::Domain::KEYCODE_SET_ATSET1
The AT Set1 keycodes (aka XT)
Sys::Virt::Domain::KEYCODE_SET_ATSET2
The AT Set2 keycodes (aka AT)
Sys::Virt::Domain::KEYCODE_SET_ATSET3
The AT Set3 keycodes (aka PS2)
Sys::Virt::Domain::KEYCODE_SET_OSX
The OS-X keycodes
Sys::Virt::Domain::KEYCODE_SET_XT_KBD
The XT keycodes from the Linux Keyboard driver
Sys::Virt::Domain::KEYCODE_SET_USB
The USB HID keycode set
Sys::Virt::Domain::KEYCODE_SET_WIN32
The Windows keycode set
Sys::Virt::Domain::KEYCODE_SET_QNUM
The XT keycode set, with the extended scancodes using the high bit of the first byte, instead of the
low bit of the second byte.
Sys::Virt::Domain::KEYCODE_SET_RFB
A deprecated alias for "Sys::Virt::Domain::KEYCODE_SET_QNUM"
MEMORY PEEK
The following constants can be used with the "memory_peek" method's flags parameter
Sys::Virt::Domain::MEMORY_VIRTUAL
Indicates that the offset is using virtual memory addressing.
Sys::Virt::Domain::MEMORY_PHYSICAL
Indicates that the offset is using physical memory addressing.
VCPU STATE
The following constants are useful when interpreting the virtual CPU run state
Sys::Virt::Domain::VCPU_OFFLINE
The virtual CPU is not online
Sys::Virt::Domain::VCPU_RUNNING
The virtual CPU is executing code
Sys::Virt::Domain::VCPU_BLOCKED
The virtual CPU is waiting to be scheduled
VCPU HOST PLACEMENT STATE
The following constants are useful when interpreting the virtual CPU host placement
Sys::Virt::Domain::VCPU_INFO_CPU_OFFLINE
The virtual CPU is not online
Sys::Virt::Domain::VCPU_INFO_CPU_UNAVAILABLE
The virtual CPU placement is not available from this hypervisor
OPEN GRAPHICS CONSTANTS
The following constants are used when opening a connection to the guest graphics server
Sys::Virt::Domain::OPEN_GRAPHICS_SKIPAUTH
Skip authentication of the client
OPEN CONSOLE CONSTANTS
The following constants are used when opening a connection to the guest console
Sys::Virt::Domain::OPEN_CONSOLE_FORCE
Force opening of the console, disconnecting any other open session
Sys::Virt::Domain::OPEN_CONSOLE_SAFE
Check if the console driver supports safe operations
OPEN CHANNEL CONSTANTS
The following constants are used when opening a connection to the guest channel
Sys::Virt::Domain::OPEN_CHANNEL_FORCE
Force opening of the channel, disconnecting any other open session
XML DUMP OPTIONS
The following constants are used to control the information included in the XML configuration dump
Sys::Virt::Domain::XML_INACTIVE
Report the persistent inactive configuration for the guest, even if it is currently running.
Sys::Virt::Domain::XML_SECURE
Include security sensitive information in the XML dump, such as passwords.
Sys::Virt::Domain::XML_UPDATE_CPU
Update the CPU model definition to match the current executing state.
Sys::Virt::Domain::XML_MIGRATABLE
Update the XML to allow migration to older versions of libvirt
DEVICE HOTPLUG OPTIONS
The following constants are used to control device hotplug operations
Sys::Virt::Domain::DEVICE_MODIFY_CURRENT
Modify the domain in its current state
Sys::Virt::Domain::DEVICE_MODIFY_LIVE
Modify only the live state of the domain
Sys::Virt::Domain::DEVICE_MODIFY_CONFIG
Modify only the persistent config of the domain
Sys::Virt::Domain::DEVICE_MODIFY_FORCE
Force the device to be modified
MEMORY OPTIONS
The following constants are used to control memory change operations
Sys::Virt::Domain::MEM_CURRENT
Modify the current state
Sys::Virt::Domain::MEM_LIVE
Modify only the live state of the domain
Sys::Virt::Domain::MEM_CONFIG
Modify only the persistent config of the domain
Sys::Virt::Domain::MEM_MAXIMUM
Modify the maximum memory value
CONFIG OPTIONS
The following constants are used to control what configuration a domain update changes
Sys::Virt::Domain::AFFECT_CURRENT
Modify the current state
Sys::Virt::Domain::AFFECT_LIVE
Modify only the live state of the domain
Sys::Virt::Domain::AFFECT_CONFIG
Modify only the persistent config of the domain
MIGRATE OPTIONS
The following constants are used to control how migration is performed
Sys::Virt::Domain::MIGRATE_LIVE
Migrate the guest without interrupting its execution on the source host.
Sys::Virt::Domain::MIGRATE_PEER2PEER
Manage the migration process over a direct peer-2-peer connection between the source and destination
host libvirtd daemons.
Sys::Virt::Domain::MIGRATE_TUNNELLED
Tunnel the migration data over the libvirt daemon connection, rather than the native hypervisor data
transport. Requires PEER2PEER flag to be set.
Sys::Virt::Domain::MIGRATE_PERSIST_DEST
Make the domain persistent on the destination host, defining its configuration file upon completion
of migration.
Sys::Virt::Domain::MIGRATE_UNDEFINE_SOURCE
Remove the domain's persistent configuration after migration completes successfully.
Sys::Virt::Domain::MIGRATE_PAUSED
Do not re-start execution of the guest CPUs on the destination host after migration completes.
Sys::Virt::Domain::MIGRATE_NON_SHARED_DISK
Copy the complete contents of the disk images during migration
Sys::Virt::Domain::MIGRATE_NON_SHARED_INC
Copy the incrementally changed contents of the disk images during migration
Sys::Virt::Domain::MIGRATE_CHANGE_PROTECTION
Do not allow changes to the virtual domain configuration while migration is taking place. This option
is automatically implied if doing a peer-2-peer migration.
Sys::Virt::Domain::MIGRATE_UNSAFE
Migrate even if the compatibility check indicates the migration will be unsafe to the guest.
Sys::Virt::Domain::MIGRATE_OFFLINE
Migrate the guest config if the guest is not currently running
Sys::Virt::Domain::MIGRATE_COMPRESSED
Enable compression of the migration data stream
Sys::Virt::Domain::MIGRATE_ABORT_ON_ERROR
Abort if an I/O error occurs on the disk
Sys::Virt::Domain::MIGRATE_AUTO_CONVERGE
Force convergence of the migration operation by throttling guest runtime
Sys::Virt::Domain::MIGRATE_RDMA_PIN_ALL
Pin memory for RDMA transfer
Sys::Virt::Domain::MIGRATE_POSTCOPY
Enable support for post-copy migration
Sys::Virt::Domain::MIGRATE_TLS
Setting this flag will cause the migration to attempt to use the TLS environment configured by the
hypervisor in order to perform the migration. If incorrectly configured on either source or
destination, the migration will fail.
Sys::Virt::Domain::MIGRATE_PARALLEL
Send memory pages to the destination host through several network connections. See
"Sys::Virt::Domain::MIGRATE_PARAM_PARALLEL_*" parameters for configuring the parallel migration.
Sys::Virt::Domain::MIGRATE_NON_SHARED_SYNCHRONOUS_WRITES
Force the guest writes which happen when copying disk images for non-shared storage migration to be
synchronously written to the destination. This ensures the storage migration converges for VMs doing
heavy I/O on fast local storage and slow mirror.
Sys::Virt::Domain::MIGRATE_POSTCOPY_RESUME
Resume migration which failed in post-copy phase.
Sys::Virt::Domain::MIGRATE_ZEROCOPY
Attempt to avoid copying data. This is a request, not a guarantee and may apply to either one or both
directions of data transfer at discretion of the hypervisor implementation.
UNDEFINE CONSTANTS
The following constants can be used when undefining virtual domain configurations
Sys::Virt::Domain::UNDEFINE_MANAGED_SAVE
Also remove any managed save image when undefining the virtual domain
Sys::Virt::Domain::UNDEFINE_SNAPSHOTS_METADATA
Also remove any snapshot metadata when undefining the virtual domain.
Sys::Virt::Domain::UNDEFINE_NVRAM
Also remove any NVRAM state file when undefining the virtual domain.
Sys::Virt::Domain::UNDEFINE_KEEP_NVRAM
keep NVRAM state file when undefining the virtual domain.
Sys::Virt::Domain::UNDEFINE_CHECKPOINTS_METADATA
Also remove any checkpoint metadata when undefining the virtual domain.
Sys::Virt::Domain::UNDEFINE_TPM
Also remove any TPM state when undefining the virtual domain.
Sys::Virt::Domain::UNDEFINE_KEEP_TPM
Keep TPM state when undefining the virtual domain.
JOB TYPES
The following constants describe the different background job types.
Sys::Virt::Domain::JOB_NONE
No job is active
Sys::Virt::Domain::JOB_BOUNDED
A job with a finite completion time is active
Sys::Virt::Domain::JOB_UNBOUNDED
A job with an unbounded completion time is active
Sys::Virt::Domain::JOB_COMPLETED
The job has finished, but isn't cleaned up
Sys::Virt::Domain::JOB_FAILED
The job has hit an error, but isn't cleaned up
Sys::Virt::Domain::JOB_CANCELLED
The job was aborted at user request, but isn't cleaned up
MEMORY PARAMETERS
The following constants are useful when getting/setting memory parameters for guests
Sys::Virt::Domain::MEMORY_HARD_LIMIT
The maximum memory the guest can use.
Sys::Virt::Domain::MEMORY_SOFT_LIMIT
The memory upper limit enforced during memory contention.
Sys::Virt::Domain::MEMORY_MIN_GUARANTEE
The minimum memory guaranteed to be reserved for the guest.
Sys::Virt::Domain::MEMORY_SWAP_HARD_LIMIT
The maximum swap the guest can use.
Sys::Virt::Domain::MEMORY_PARAM_UNLIMITED
The value of an unlimited memory parameter
BLKIO PARAMETERS
The following parameters control I/O tuning for the domain as a whole
Sys::Virt::Domain::BLKIO_WEIGHT
The I/O weight parameter
Sys::Virt::Domain::BLKIO_DEVICE_WEIGHT
The per-device I/O weight parameter
Sys::Virt::Domain::BLKIO_DEVICE_READ_BPS
The per-device I/O bytes read per second
Sys::Virt::Domain::BLKIO_DEVICE_READ_IOPS
The per-device I/O operations read per second
Sys::Virt::Domain::BLKIO_DEVICE_WRITE_BPS
The per-device I/O bytes write per second
Sys::Virt::Domain::BLKIO_DEVICE_WRITE_IOPS
The per-device I/O operations write per second
BLKIO TUNING PARAMETERS
The following parameters control I/O tuning for an individual guest disk.
Sys::Virt::Domain::BLOCK_IOTUNE_TOTAL_BYTES_SEC
The total bytes processed per second.
Sys::Virt::Domain::BLOCK_IOTUNE_READ_BYTES_SEC
The bytes read per second.
Sys::Virt::Domain::BLOCK_IOTUNE_WRITE_BYTES_SEC
The bytes written per second.
Sys::Virt::Domain::BLOCK_IOTUNE_TOTAL_IOPS_SEC
The total I/O operations processed per second.
Sys::Virt::Domain::BLOCK_IOTUNE_READ_IOPS_SEC
The I/O operations read per second.
Sys::Virt::Domain::BLOCK_IOTUNE_WRITE_IOPS_SEC
The I/O operations written per second.
Sys::Virt::Domain::BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX
The maximum total bytes processed per second.
Sys::Virt::Domain::BLOCK_IOTUNE_READ_BYTES_SEC_MAX
The maximum bytes read per second.
Sys::Virt::Domain::BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX
The maximum bytes written per second.
Sys::Virt::Domain::BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX
The maximum total I/O operations processed per second.
Sys::Virt::Domain::BLOCK_IOTUNE_READ_IOPS_SEC_MAX
The maximum I/O operations read per second.
Sys::Virt::Domain::BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX
The maximum I/O operations written per second.
Sys::Virt::Domain::BLOCK_IOTUNE_SIZE_IOPS_SEC
The maximum I/O operations per second
Sys::Virt::Domain::BLOCK_IOTUNE_GROUP_NAME
A string representing a group name to allow sharing of I/O throttling quota between multiple drives
Sys::Virt::Domain::BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX_LENGTH
The duration in seconds allowed for maximum total bytes processed per second.
Sys::Virt::Domain::BLOCK_IOTUNE_READ_BYTES_SEC_MAX_LENGTH
The duration in seconds allowed for maximum bytes read per second.
Sys::Virt::Domain::BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX_LENGTH
The duration in seconds allowed for maximum bytes written per second.
Sys::Virt::Domain::BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX_LENGTH
The duration in seconds allowed for maximum total I/O operations processed per second.
Sys::Virt::Domain::BLOCK_IOTUNE_READ_IOPS_SEC_MAX_LENGTH
The duration in seconds allowed for maximum I/O operations read per second.
Sys::Virt::Domain::BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX_LENGTH
The duration in seconds allowed for maximum I/O operations written per second.
SCHEDULER CONSTANTS
Sys::Virt::Domain::SCHEDULER_CAP
The VM cap tunable
Sys::Virt::Domain::SCHEDULER_CPU_SHARES
The CPU shares tunable
Sys::Virt::Domain::SCHEDULER_LIMIT
The VM limit tunable
Sys::Virt::Domain::SCHEDULER_RESERVATION
The VM reservation tunable
Sys::Virt::Domain::SCHEDULER_SHARES
The VM shares tunable
Sys::Virt::Domain::SCHEDULER_VCPU_PERIOD
The VCPU period tunable
Sys::Virt::Domain::SCHEDULER_VCPU_QUOTA
The VCPU quota tunable
Sys::Virt::Domain::SCHEDULER_GLOBAL_PERIOD
The VM global period tunable
Sys::Virt::Domain::SCHEDULER_GLOBAL_QUOTA
The VM global quota tunable
Sys::Virt::Domain::SCHEDULER_WEIGHT
The VM weight tunable
NUMA PARAMETERS
The following constants are useful when getting/setting the guest NUMA memory policy
Sys::Virt::Domain::NUMA_MODE
The NUMA policy mode
Sys::Virt::Domain::NUMA_NODESET
The NUMA nodeset mask
The following constants are useful when interpreting the "Sys::Virt::Domain::NUMA_MODE" parameter value
Sys::Virt::Domain::NUMATUNE_MEM_STRICT
Allocation is mandatory from the mask nodes
Sys::Virt::Domain::NUMATUNE_MEM_PREFERRED
Allocation is preferred from the masked nodes
Sys::Virt::Domain::NUMATUNE_MEM_INTERLEAVE
Allocation is interleaved across all masked nodes
Sys::Virt::Domain::NUMATUNE_MEM_RESTRICTIVE
Allocation is determined by the host using the masked nodes.
INTERFACE PARAMETERS
The following constants are useful when getting/setting the per network interface tunable parameters
Sys::Virt::Domain::BANDWIDTH_IN_AVERAGE
The average inbound bandwidth
Sys::Virt::Domain::BANDWIDTH_IN_PEAK
The peak inbound bandwidth
Sys::Virt::Domain::BANDWIDTH_IN_BURST
The burstable inbound bandwidth
Sys::Virt::Domain::BANDWIDTH_IN_FLOOR
The minimum inbound bandwidth
Sys::Virt::Domain::BANDWIDTH_OUT_AVERAGE
The average outbound bandwidth
Sys::Virt::Domain::BANDWIDTH_OUT_PEAK
The peak outbound bandwidth
Sys::Virt::Domain::BANDWIDTH_OUT_BURST
The burstable outbound bandwidth
PERF EVENTS
The following constants defined performance events which can be monitored for a guest
Sys::Virt::Domain::PERF_PARAM_CMT
The CMT event counter which can be used to measure the usage of cache (bytes) by applications running
on the platform. It corresponds to the "perf.cmt" field in the *Stats APIs.
Sys::Virt::Domain::PERF_PARAM_MBML
The MBML event counter which can be used to monitor the amount of data (bytes/s) sent through the
memory controller on the socket. It corresponds to the "perf.mbml" field in the *Stats APIs.
Sys::Virt::Domain::PERF_PARAM_MBMT
The MBMT event counter which can be used to monitor total system bandwidth (bytes/s) from one level
of cache to another. It corresponds to the "perf.mbmt" field in the *Stats APIs.
Sys::Virt::Domain::PERF_PARAM_CACHE_MISSES
The cache_misses perf event counter which can be used to measure the count of cache misses by
applications running on the platform. It corresponds to the "perf.cache_misses" field in the *Stats
APIs.
Sys::Virt::Domain::PERF_PARAM_CACHE_REFERENCES
The cache_references perf event counter which can be used to measure the count of cache hits by
applications running on the platform. It corresponds to the "perf.cache_references" field in the
*Stats APIs.
Sys::Virt::Domain::PERF_PARAM_CPU_CYCLES
The cpu_cycles perf event counter which can be used to measure how many cpu cycles one instruction
needs. It corresponds to the "perf.cpu_cycles" field in the *Stats APIs.
Sys::Virt::Domain::PERF_PARAM_INSTRUCTIONS
The instructions perf event counter which can be used to measure the count of instructions by
applications running on the platform. It corresponds to the "perf.instructions" field in the *Stats
APIs.
Sys::Virt::Domain::PERF_PARAM_BRANCH_INSTRUCTIONS
The branch_instructions perf event counter which can be used to measure the count of instructions by
applications running on the platform. It corresponds to the "perf.branch_instructions" field in the
*Stats APIs.
Sys::Virt::Domain::PERF_PARAM_BRANCH_MISSES
The branch_misses perf event which can be used to measure the count of branch misses by applications
running on the platform. It corresponds to the "perf.branch_misses" field in the *Stats APIs.
Sys::Virt::Domain::PERF_PARAM_BUS_CYCLES
The bus_cycles perf event counter which can be used to measure the count of bus cycles by
applications running on the platform. It corresponds to the "perf.bus_cycles" field in the *Stats
APIs.
Sys::Virt::Domain::PERF_PARAM_STALLED_CYCLES_FRONTEND
The stalled_cycles_frontend perf event counter which can be used to measure the count of stalled cpu
cycles in the frontend of the instruction processor pipeline by applications running on the platform.
It corresponds to the "perf.stalled_cycles_frontend" field in the *Stats APIs.
Sys::Virt::Domain::PERF_PARAM_STALLED_CYCLES_BACKEND
The stalled_cycles_backend perf event counter which can be used to measure the count of stalled cpu
cycles in the backend of the instruction processor pipeline by application running on the platform.
It corresponds to the "perf.stalled_cycles_backend" field in the *Stats APIs.
Sys::Virt::Domain::PERF_PARAM_REF_CPU_CYCLES
The ref_cpu_cycles perf event counter which can be used to measure the count of total cpu cycles not
affected by CPU frequency scaling by applications running on the platform. It corresponds to the
"perf.ref_cpu_cycles" field in the *Stats APIs.
Sys::Virt::Domain::PERF_PARAM_CPU_CLOCK
The cpu_clock perf event counter which can be used to measure the count of cpu clock time by
applications running on the platform. It corresponds to the "perf.cpu_clock" field in the *Stats
APIs.
Sys::Virt::Domain::PERF_PARAM_TASK_CLOCK
The task_clock perf event counter which can be used to measure the count of task clock time by
applications running on the platform. It corresponds to the "perf.task_clock" field in the *Stats
APIs.
Sys::Virt::Domain::PERF_PARAM_PAGE_FAULTS
The page_faults perf event counter which can be used to measure the count of page faults by
applications running on the platform. It corresponds to the "perf.page_faults" field in the *Stats
APIs.
Sys::Virt::Domain::PERF_PARAM_CONTEXT_SWITCHES
The context_switches perf event counter which can be used to measure the count of context switches by
applications running on the platform. It corresponds to the "perf.context_switches" field in the
*Stats APIs.
Sys::Virt::Domain::PERF_PARAM_CPU_MIGRATIONS
The cpu_migrations perf event counter which can be used to measure the count of cpu migrations by
applications running on the platform. It corresponds to the "perf.cpu_migrations" field in the *Stats
APIs.
Sys::Virt::Domain::PERF_PARAM_PAGE_FAULTS_MIN
The page_faults_min perf event counter which can be used to measure the count of minor page faults by
applications running on the platform. It corresponds to the "perf.page_faults_min" field in the
*Stats APIs.
Sys::Virt::Domain::PERF_PARAM_PAGE_FAULTS_MAJ
The page_faults_maj perf event counter which can be used to measure the count of major page faults by
applications running on the platform. It corresponds to the "perf.page_faults_maj" field in the
*Stats APIs.
Sys::Virt::Domain::PERF_PARAM_ALIGNMENT_FAULTS
The alignment_faults perf event counter which can be used to measure the count of alignment faults by
applications running on the platform. It corresponds to the "perf.alignment_faults" field in the
*Stats APIs.
Sys::Virt::Domain::PERF_PARAM_EMULATION_FAULTS
The emulation_faults perf event counter which can be used to measure the count of emulation faults by
applications running on the platform. It corresponds to the "perf.emulation_faults" field in the
*Stats APIs.
IOTHREAD STATS
The following constants defined IOThread statistics which can be monitored for a guest
Sys::Virt::Domain::IOTHREAD_PARAM_POLL_MAX_NS
The maximum polling time that can be used by polling algorithm in ns. The polling time starts at 0
(zero) and is the time spent by the guest to process IOThread data before returning the CPU to the
host. The polling time will be dynamically modified over time based on the poll_grow and poll_shrink
parameters provided.
Sys::Virt::Domain::IOTHREAD_PARAM_POLL_GROW
This provides a value for the dynamic polling adjustment algorithm to use to grow its polling
interval up to the poll_max_ns value.
Sys::Virt::Domain::IOTHREAD_PARAM_POLL_SHRINK
This provides a value for the dynamic polling adjustment algorithm to use to shrink its polling
interval when the polling interval exceeds the poll_max_ns value.
Sys::Virt::Domain::IOTHREAD_PARAM_THREAD_POOL_MIN
Sets the lower bound for thread pool size. A value of -1 disables this bound leaving hypervisor use
its default value, though this value is not accepted for running domains. Due to internal
implementation it's recommended to set lower and upper bounds separately.
Sys::Virt::Domain::IOTHREAD_PARAM_THREAD_POOL_MAX
Sets the upper bound for thread pool size. A value of -1 disables this bound leaving hypervisor use
its default value, though this value is not accepted for running domains. Since the upper band has to
be equal to or greater than lower bound value of 0 is not accepted. Due to internal implementation
it's recommended to set lower and upper bounds separately.
VCPU FLAGS
The following constants are useful when getting/setting the VCPU count for a guest
Sys::Virt::Domain::VCPU_LIVE
Flag to request the live value
Sys::Virt::Domain::VCPU_CONFIG
Flag to request the persistent config value
Sys::Virt::Domain::VCPU_CURRENT
Flag to request the current config value
Sys::Virt::Domain::VCPU_MAXIMUM
Flag to request adjustment of the maximum vCPU value
Sys::Virt::Domain::VCPU_GUEST
Flag to request the guest VCPU mask
Sys::Virt::Domain::VCPU_HOTPLUGGABLE
Flag to make vcpus added hot(un)pluggable
STATE CHANGE EVENTS
The following constants allow domain state change events to be interpreted. The events contain both a
state change, and a reason.
Sys::Virt::Domain::EVENT_DEFINED
Indicates that a persistent configuration has been defined for the domain.
Sys::Virt::Domain::EVENT_DEFINED_ADDED
The defined configuration is newly added
Sys::Virt::Domain::EVENT_DEFINED_UPDATED
The defined configuration is an update to an existing configuration
Sys::Virt::Domain::EVENT_DEFINED_RENAMED
The defined configuration is a rename of an existing configuration
Sys::Virt::Domain::EVENT_DEFINED_FROM_SNAPSHOT
The defined configuration was restored from a snapshot
Sys::Virt::Domain::EVENT_RESUMED
The domain has resumed execution
Sys::Virt::Domain::EVENT_RESUMED_MIGRATED
The domain resumed because migration has completed. This is emitted on the destination host.
Sys::Virt::Domain::EVENT_RESUMED_UNPAUSED
The domain resumed because the admin unpaused it.
Sys::Virt::Domain::EVENT_RESUMED_FROM_SNAPSHOT
The domain resumed because it was restored from a snapshot
Sys::Virt::Domain::EVENT_RESUMED_POSTCOPY
The domain resumed but post-copy is running in background
Sys::Virt::Domain::EVENT_RESUMED_POSTCOPY_FAILED
The domain is running, but migration failed in post-copy.
Sys::Virt::Domain::EVENT_STARTED
The domain has started running
Sys::Virt::Domain::EVENT_STARTED_BOOTED
The domain was booted from shutoff state
Sys::Virt::Domain::EVENT_STARTED_MIGRATED
The domain started due to an incoming migration
Sys::Virt::Domain::EVENT_STARTED_RESTORED
The domain was restored from saved state file
Sys::Virt::Domain::EVENT_STARTED_FROM_SNAPSHOT
The domain was restored from a snapshot
Sys::Virt::Domain::EVENT_STARTED_WAKEUP
The domain was woken up from suspend
Sys::Virt::Domain::EVENT_STOPPED
The domain has stopped running
Sys::Virt::Domain::EVENT_STOPPED_CRASHED
The domain stopped because guest operating system has crashed
Sys::Virt::Domain::EVENT_STOPPED_DESTROYED
The domain stopped because administrator issued a destroy command.
Sys::Virt::Domain::EVENT_STOPPED_FAILED
The domain stopped because of a fault in the host virtualization environment.
Sys::Virt::Domain::EVENT_STOPPED_MIGRATED
The domain stopped because it was migrated to another machine.
Sys::Virt::Domain::EVENT_STOPPED_SAVED
The domain was saved to a state file
Sys::Virt::Domain::EVENT_STOPPED_SHUTDOWN
The domain stopped due to graceful shutdown of the guest.
Sys::Virt::Domain::EVENT_STOPPED_FROM_SNAPSHOT
The domain was stopped due to a snapshot
Sys::Virt::Domain::EVENT_SHUTDOWN
The domain has shutdown but is not yet stopped
Sys::Virt::Domain::EVENT_SHUTDOWN_FINISHED
The domain finished shutting down
Sys::Virt::Domain::EVENT_SHUTDOWN_HOST
The domain shutdown due to host trigger
Sys::Virt::Domain::EVENT_SHUTDOWN_GUEST
The domain shutdown due to guest trigger
Sys::Virt::Domain::EVENT_SUSPENDED
The domain has stopped executing, but still exists
Sys::Virt::Domain::EVENT_SUSPENDED_MIGRATED
The domain has been suspended due to offline migration
Sys::Virt::Domain::EVENT_SUSPENDED_PAUSED
The domain has been suspended due to administrator pause request.
Sys::Virt::Domain::EVENT_SUSPENDED_IOERROR
The domain has been suspended due to a block device I/O error.
Sys::Virt::Domain::EVENT_SUSPENDED_FROM_SNAPSHOT
The domain has been suspended due to resume from snapshot
Sys::Virt::Domain::EVENT_SUSPENDED_WATCHDOG
The domain has been suspended due to the watchdog triggering
Sys::Virt::Domain::EVENT_SUSPENDED_RESTORED
The domain has been suspended due to restore from saved state
Sys::Virt::Domain::EVENT_SUSPENDED_API_ERROR
The domain has been suspended due to an API error
Sys::Virt::Domain::EVENT_SUSPENDED_POSTCOPY
The domain has been suspended for post-copy migration
Sys::Virt::Domain::EVENT_SUSPENDED_POSTCOPY_FAILED
The domain has been suspended due post-copy migration failing
Sys::Virt::Domain::EVENT_UNDEFINED
The persistent configuration has gone away
Sys::Virt::Domain::EVENT_UNDEFINED_REMOVED
The domain configuration has gone away due to it being removed by administrator.
Sys::Virt::Domain::EVENT_UNDEFINED_RENAMED
The undefined configuration is a rename of an existing configuration
Sys::Virt::Domain::EVENT_PMSUSPENDED
The domain has stopped running
Sys::Virt::Domain::EVENT_PMSUSPENDED_MEMORY
The domain has suspend to RAM.
Sys::Virt::Domain::EVENT_PMSUSPENDED_DISK
The domain has suspend to Disk.
Sys::Virt::Domain::EVENT_CRASHED
The domain has crashed
Sys::Virt::Domain::EVENT_CRASHED_PANICKED
The domain has crashed due to a kernel panic
Sys::Virt::Domain::EVENT_CRASHED_CRASHLOADED
The domain has crashed and reloaded itself
EVENT ID CONSTANTS
Sys::Virt::Domain::EVENT_ID_LIFECYCLE
Domain lifecycle events
Sys::Virt::Domain::EVENT_ID_REBOOT
Soft / warm reboot events
Sys::Virt::Domain::EVENT_ID_RTC_CHANGE
RTC clock adjustments
Sys::Virt::Domain::EVENT_ID_IO_ERROR
File IO errors, typically from disks
Sys::Virt::Domain::EVENT_ID_WATCHDOG
Watchdog device triggering
Sys::Virt::Domain::EVENT_ID_GRAPHICS
Graphics client connections.
Sys::Virt::Domain::EVENT_ID_IO_ERROR_REASON
File IO errors, typically from disks, with a root cause
Sys::Virt::Domain::EVENT_ID_CONTROL_ERROR
Errors from the virtualization control channel
Sys::Virt::Domain::EVENT_ID_BLOCK_JOB
Completion status of asynchronous block jobs, identified by source file name.
Sys::Virt::Domain::EVENT_ID_BLOCK_JOB_2
Completion status of asynchronous block jobs, identified by target device name.
Sys::Virt::Domain::EVENT_ID_DISK_CHANGE
Changes in disk media
Sys::Virt::Domain::EVENT_ID_TRAY_CHANGE
CDROM media tray state
Sys::Virt::Domain::EVENT_ID_PMSUSPEND
Power management initiated suspend to RAM
Sys::Virt::Domain::EVENT_ID_PMSUSPEND_DISK
Power management initiated suspend to Disk
Sys::Virt::Domain::EVENT_ID_PMWAKEUP
Power management initiated wakeup
Sys::Virt::Domain::EVENT_ID_BALLOON_CHANGE
Balloon target changes
Sys::Virt::Domain::EVENT_ID_DEVICE_ADDED
Asynchronous guest device addition
Sys::Virt::Domain::EVENT_ID_DEVICE_REMOVED
Asynchronous guest device removal
Sys::Virt::Domain::EVENT_ID_TUNABLE
Changes of any domain tuning parameters. The callback will be provided with a hash listing all
changed parameters. The later DOMAIN TUNABLE constants can be useful when accessing the hash keys
Sys::Virt::Domain::EVENT_ID_AGENT_LIFECYCLE
Domain guest agent lifecycle events. The "state" parameter to the callback will match one of the
constants
Sys::Virt::Domain::EVENT_AGENT_LIFECYCLE_STATE_CONNECTED
The agent is now connected
Sys::Virt::Domain::EVENT_AGENT_LIFECYCLE_STATE_DISCONNECTED
The agent is now disconnected
The second parameter, "reason", matches one of the following constants
Sys::Virt::Domain::EVENT_ID_MIGRATION_ITERATION
Domain migration progress iteration. The "iteration" parameter to the callback will specify the
number of iterations migration has made over guest RAM.
Sys::Virt::Domain::EVENT_AGENT_LIFECYCLE_REASON_UNKNOWN
The reason is unknown
Sys::Virt::Domain::EVENT_AGENT_LIFECYCLE_REASON_DOMAIN_STARTED
The domain was initially booted
Sys::Virt::Domain::EVENT_AGENT_LIFECYCLE_REASON_CHANNEL
The channel on a running guest changed state
Sys::Virt::Domain::EVENT_ID_JOB_COMPLETED
Domain background job completion notification. The callback provides a hash containing the job stats.
The keys in the hash are the same as those used with the Sys::Virt::Domain::get_job_stats() method.
Sys::Virt::Domain::EVENT_ID_DEVICE_REMOVAL_FAILED
Guest device removal has failed.
Sys::Virt::Domain::EVENT_ID_METADATA_CHANGE
The domain metadata has changed
Sys::Virt::Domain::EVENT_ID_BLOCK_THRESHOLD
The event occurs when the hypervisor detects that the given storage element was written beyond the
point specified by threshold. The event is useful for thin-provisioned storage.
Sys::Virt::Domain::EVENT_ID_MEMORY_FAILURE
The event occurs when the hypervisor detects hardware memory corruption.
Sys::Virt::Domain::EVENT_ID_MEMORY_DEVICE_SIZE_CHANGE
The event occurs when the guest accepts a request to change the memory device size.
IO ERROR EVENT CONSTANTS
These constants describe what action was taken due to the IO error.
Sys::Virt::Domain::EVENT_IO_ERROR_NONE
No action was taken, the error was ignored & reported as success to guest
Sys::Virt::Domain::EVENT_IO_ERROR_PAUSE
The guest is paused since the error occurred
Sys::Virt::Domain::EVENT_IO_ERROR_REPORT
The error has been reported to the guest OS
WATCHDOG EVENT CONSTANTS
These constants describe what action was taken due to the watchdog firing
Sys::Virt::Domain::EVENT_WATCHDOG_NONE
No action was taken, the watchdog was ignored
Sys::Virt::Domain::EVENT_WATCHDOG_PAUSE
The guest is paused since the watchdog fired
Sys::Virt::Domain::EVENT_WATCHDOG_POWEROFF
The guest is powered off after the watchdog fired
Sys::Virt::Domain::EVENT_WATCHDOG_RESET
The guest is reset after the watchdog fired
Sys::Virt::Domain::EVENT_WATCHDOG_SHUTDOWN
The guest attempted to gracefully shutdown after the watchdog fired
Sys::Virt::Domain::EVENT_WATCHDOG_DEBUG
No action was taken, the watchdog was logged
Sys::Virt::Domain::EVENT_WATCHDOG_INJECTNMI
An NMI was injected into the guest after the watchdog fired
GRAPHICS EVENT PHASE CONSTANTS
These constants describe the phase of the graphics connection
Sys::Virt::Domain::EVENT_GRAPHICS_CONNECT
The initial client connection
Sys::Virt::Domain::EVENT_GRAPHICS_INITIALIZE
The client has been authenticated & the connection is running
Sys::Virt::Domain::EVENT_GRAPHICS_DISCONNECT
The client has disconnected
GRAPHICS EVENT ADDRESS CONSTANTS
These constants describe the format of the address
Sys::Virt::Domain::EVENT_GRAPHICS_ADDRESS_IPV4
An IPv4 address
Sys::Virt::Domain::EVENT_GRAPHICS_ADDRESS_IPV6
An IPv6 address
Sys::Virt::Domain::EVENT_GRAPHICS_ADDRESS_UNIX
An UNIX socket path address
DISK CHANGE EVENT CONSTANTS
These constants describe the reason for a disk change event
Sys::Virt::Domain::EVENT_DISK_CHANGE_MISSING_ON_START
The disk media was cleared, as its source was missing when attempting to start the guest
Sys::Virt::Domain::EVENT_DISK_DROP_MISSING_ON_START
The disk device was dropped, as its source was missing when attempting to start the guest
TRAY CHANGE CONSTANTS
These constants describe the reason for a tray change event
Sys::Virt::Domain::EVENT_TRAY_CHANGE_CLOSE
The tray was closed
Sys::Virt::Domain::EVENT_TRAY_CHANGE_OPEN
The tray was opened
DOMAIN BLOCK JOB TYPE CONSTANTS
The following constants identify the different types of domain block jobs
Sys::Virt::Domain::BLOCK_JOB_TYPE_UNKNOWN
An unknown block job type
Sys::Virt::Domain::BLOCK_JOB_TYPE_PULL
The block pull job type
Sys::Virt::Domain::BLOCK_JOB_TYPE_COPY
The block copy job type
Sys::Virt::Domain::BLOCK_JOB_TYPE_COMMIT
The block commit job type
Sys::Virt::Domain::BLOCK_JOB_TYPE_ACTIVE_COMMIT
The block active commit job type
Sys::Virt::Domain::BLOCK_JOB_TYPE_BACKUP
The block backup job type
DOMAIN BLOCK JOB COMPLETION CONSTANTS
The following constants can be used to determine the completion status of a block job
Sys::Virt::Domain::BLOCK_JOB_COMPLETED
A successfully completed block job
Sys::Virt::Domain::BLOCK_JOB_FAILED
An unsuccessful block job
Sys::Virt::Domain::BLOCK_JOB_CANCELED
A block job canceled by the user
Sys::Virt::Domain::BLOCK_JOB_READY
A block job is running
DOMAIN BLOCK REBASE CONSTANTS
The following constants are useful when rebasing block devices
Sys::Virt::Domain::BLOCK_REBASE_SHALLOW
Limit copy to top of source backing chain
Sys::Virt::Domain::BLOCK_REBASE_REUSE_EXT
Reuse existing external file for copy
Sys::Virt::Domain::BLOCK_REBASE_COPY_RAW
Make destination file raw
Sys::Virt::Domain::BLOCK_REBASE_COPY
Start a copy job
Sys::Virt::Domain::BLOCK_REBASE_COPY_DEV
Treat destination as a block device instead of file
Sys::Virt::Domain::BLOCK_REBASE_RELATIVE
Keep backing chain referenced using relative names
DOMAIN BLOCK COPY CONSTANTS
The following constants are useful when copying block devices
Sys::Virt::Domain::BLOCK_COPY_SHALLOW
Limit copy to top of source backing chain
Sys::Virt::Domain::BLOCK_COPY_REUSE_EXT
Reuse existing external file for copy
Sys::Virt::Domain::BLOCK_COPY_TRANSIENT_JOB
Don't force usage of recoverable job for the copy operation
Sys::Virt::Domain::BLOCK_COPY_SYNCHRONOUS_WRITES
Force the copy job to synchronously propagate guest writes into the destination image, so that the
copy is guaranteed to converge
DOMAIN BLOCK JOB ABORT CONSTANTS
The following constants are useful when aborting job copy jobs
Sys::Virt::Domain::BLOCK_JOB_ABORT_ASYNC
Request only, do not wait for completion
Sys::Virt::Domain::BLOCK_JOB_ABORT_PIVOT
Pivot to mirror when ending a copy job
DOMAIN BLOCK COMMIT JOB CONSTANTS
The following constants are useful with block commit job types
Sys::Virt::Domain::BLOCK_COMMIT_DELETE
Delete any files that are invalid after commit
Sys::Virt::Domain::BLOCK_COMMIT_SHALLOW
NULL base means next backing file, not whole chain
Sys::Virt::Domain::BLOCK_COMMIT_ACTIVE
Allow two phase commit when top is active layer
Sys::Virt::Domain::BLOCK_COMMIT_RELATIVE
Keep backing chain referenced using relative names
DOMAIN SAVE / RESTORE FLAG CONSTANTS
The following constants can be used when saving or restoring virtual machines
Sys::Virt::Domain::SAVE_BYPASS_CACHE
Do not use OS I/O cache when saving state.
Sys::Virt::Domain::SAVE_PAUSED
Mark the saved state as paused to prevent the guest CPUs starting upon restore.
Sys::Virt::Domain::SAVE_RUNNING
Mark the saved state as running to allow the guest CPUs to start upon restore.
Sys::Virt::Domain::SAVE_RESET_NVRAM
Reset the firmware NVRAM state from its original template
SAVE / RESTORE PARAMETER CONSTANTS
Sys::Virt::Domain::SAVE_PARAM_FILE
Specify the save state file to save to or restore from.
Sys::Virt::Domain::SAVE_PARAM_DXML
Used to adjust guest xml on restore, e.g. to alter a device while domain is stopped.
DOMAIN CORE DUMP CONSTANTS
The following constants can be used when triggering domain core dumps
Sys::Virt::Domain::DUMP_LIVE
Do not pause execution while dumping the guest
Sys::Virt::Domain::DUMP_CRASH
Crash the guest after completing the core dump
Sys::Virt::Domain::DUMP_BYPASS_CACHE
Do not use OS I/O cache when writing core dump
Sys::Virt::Domain::DUMP_RESET
Reset the virtual machine after finishing the dump
Sys::Virt::Domain::DUMP_MEMORY_ONLY
Only include guest RAM in the dump, not the device state
DESTROY CONSTANTS
The following constants are useful when terminating guests using the "destroy" API.
Sys::Virt::Domain::DESTROY_DEFAULT
Destroy the guest using the default approach
Sys::Virt::Domain::DESTROY_GRACEFUL
Destroy the guest in a graceful manner
Sys::Virt::Domain::DESTROY_REMOVE_LOGS
Delete log files associated with the guest
SHUTDOWN CONSTANTS
The following constants are useful when requesting that a guest terminate using the "shutdown" API
Sys::Virt::Domain::SHUTDOWN_DEFAULT
Shutdown using the hypervisor's default mechanism
Sys::Virt::Domain::SHUTDOWN_GUEST_AGENT
Shutdown by issuing a command to a guest agent
Sys::Virt::Domain::SHUTDOWN_ACPI_POWER_BTN
Shutdown by injecting an ACPI power button press
Sys::Virt::Domain::SHUTDOWN_INITCTL
Shutdown by talking to initctl (containers only)
Sys::Virt::Domain::SHUTDOWN_SIGNAL
Shutdown by sending SIGTERM to the init process
Sys::Virt::Domain::SHUTDOWN_PARAVIRT
Shutdown by issuing a paravirt power control command
REBOOT CONSTANTS
The following constants are useful when requesting that a guest terminate using the "reboot" API
Sys::Virt::Domain::REBOOT_DEFAULT
Reboot using the hypervisor's default mechanism
Sys::Virt::Domain::REBOOT_GUEST_AGENT
Reboot by issuing a command to a guest agent
Sys::Virt::Domain::REBOOT_ACPI_POWER_BTN
Reboot by injecting an ACPI power button press
Sys::Virt::Domain::REBOOT_INITCTL
Reboot by talking to initctl (containers only)
Sys::Virt::Domain::REBOOT_SIGNAL
Reboot by sending SIGHUP to the init process
Sys::Virt::Domain::REBOOT_PARAVIRT
Reboot by issuing a paravirt power control command
METADATA CONSTANTS
The following constants are useful when reading/writing metadata about a guest
Sys::Virt::Domain::METADATA_TITLE
The short human friendly title of the guest
Sys::Virt::Domain::METADATA_DESCRIPTION
The long free text description of the guest
Sys::Virt::Domain::METADATA_ELEMENT
The structured metadata elements for the guest
DISK ERROR CONSTANTS
The following constants are useful when interpreting disk error codes
Sys::Virt::Domain::DISK_ERROR_NONE
No error
Sys::Virt::Domain::DISK_ERROR_NO_SPACE
The host storage has run out of free space
Sys::Virt::Domain::DISK_ERROR_UNSPEC
An unspecified error has occurred.
MEMORY STATISTIC CONSTANTS
Sys::Virt::Domain::MEMORY_STAT_SWAP_IN
Swap in
Sys::Virt::Domain::MEMORY_STAT_SWAP_OUT
Swap out
Sys::Virt::Domain::MEMORY_STAT_MINOR_FAULT
Minor faults
Sys::Virt::Domain::MEMORY_STAT_MAJOR_FAULT
Major faults
Sys::Virt::Domain::MEMORY_STAT_RSS
Resident memory
Sys::Virt::Domain::MEMORY_STAT_UNUSED
Unused memory
Sys::Virt::Domain::MEMORY_STAT_AVAILABLE
Available memory
Sys::Virt::Domain::MEMORY_STAT_ACTUAL_BALLOON
Actual balloon limit
Sys::Virt::Domain::MEMORY_STAT_USABLE
Amount of usable memory
Sys::Virt::Domain::MEMORY_STAT_LAST_UPDATE
Time of last stats refresh from guest
Sys::Virt::Domain::MEMORY_STAT_DISK_CACHES
Disk cache size
Sys::Virt::Domain::MEMORY_STAT_HUGETLB_PGALLOC
The amount of successful huge page allocations
Sys::Virt::Domain::MEMORY_STAT_HUGETLB_PGFAIL
The amount of failed huge page allocations
DOMAIN LIST CONSTANTS
The following constants can be used when listing domains
Sys::Virt::Domain::LIST_ACTIVE
Only list domains that are currently active (running, or paused)
Sys::Virt::Domain::LIST_AUTOSTART
Only list domains that are set to automatically start on boot
Sys::Virt::Domain::LIST_HAS_SNAPSHOT
Only list domains that have a stored snapshot
Sys::Virt::Domain::LIST_INACTIVE
Only list domains that are currently inactive (shutoff, saved)
Sys::Virt::Domain::LIST_MANAGEDSAVE
Only list domains that have current managed save state
Sys::Virt::Domain::LIST_NO_AUTOSTART
Only list domains that are not set to automatically start on boto
Sys::Virt::Domain::LIST_NO_MANAGEDSAVE
Only list domains that do not have any managed save state
Sys::Virt::Domain::LIST_NO_SNAPSHOT
Only list domains that do not have a stored snapshot
Sys::Virt::Domain::LIST_OTHER
Only list domains that are not running, paused or shutoff
Sys::Virt::Domain::LIST_PAUSED
Only list domains that are paused
Sys::Virt::Domain::LIST_PERSISTENT
Only list domains which have a persistent config
Sys::Virt::Domain::LIST_RUNNING
Only list domains that are currently running
Sys::Virt::Domain::LIST_SHUTOFF
Only list domains that are currently shutoff
Sys::Virt::Domain::LIST_TRANSIENT
Only list domains that do not have a persistent config
Sys::Virt::Domain::LIST_HAS_CHECKPOINT
Only list domains that have a stored checkpoint
Sys::Virt::Domain::LIST_NO_CHECKPOINT
Only list domains that do not have a stored checkpoint
SEND KEY CONSTANTS
The following constants are to be used with the "send_key" API
Sys::Virt::Domain::SEND_KEY_MAX_KEYS
The maximum number of keys that can be sent in a single call to "send_key"
BLOCK STATS CONSTANTS
The following constants provide the names of well known block stats fields
Sys::Virt::Domain::BLOCK_STATS_ERRS
The number of I/O errors
Sys::Virt::Domain::BLOCK_STATS_FLUSH_REQ
The number of flush requests
Sys::Virt::Domain::BLOCK_STATS_FLUSH_TOTAL_TIMES
The time spent processing flush requests
Sys::Virt::Domain::BLOCK_STATS_READ_BYTES
The amount of data read
Sys::Virt::Domain::BLOCK_STATS_READ_REQ
The number of read requests
Sys::Virt::Domain::BLOCK_STATS_READ_TOTAL_TIMES
The time spent processing read requests
Sys::Virt::Domain::BLOCK_STATS_WRITE_BYTES
The amount of data written
Sys::Virt::Domain::BLOCK_STATS_WRITE_REQ
The number of write requests
Sys::Virt::Domain::BLOCK_STATS_WRITE_TOTAL_TIMES
The time spent processing write requests
CPU STATS CONSTANTS
The following constants provide the names of well known cpu stats fields
Sys::Virt::Domain::CPU_STATS_CPUTIME
The total CPU time, including both hypervisor and vCPU time.
Sys::Virt::Domain::CPU_STATS_USERTIME
THe total time in kernel
Sys::Virt::Domain::CPU_STATS_SYSTEMTIME
The total time in userspace
Sys::Virt::Domain::CPU_STATS_VCPUTIME
The total vCPU time.
CPU STATS CONSTANTS
The following constants provide the names of well known schedular parameters
Sys::Virt::SCHEDULER_EMULATOR_PERIOD
The duration of the time period for scheduling the emulator
Sys::Virt::SCHEDULER_EMULATOR_QUOTA
The quota for the emulator in one schedular time period
Sys::Virt::SCHEDULER_IOTHREAD_PERIOD
The duration of the time period for scheduling the iothread
Sys::Virt::SCHEDULER_IOTHREAD_QUOTA
The quota for the iothread in one schedular time period
DOMAIN STATS FLAG CONSTANTS
The following constants are used as flags when requesting bulk domain stats from
"Sys::Virt::get_all_domain_stats".
Sys::Virt::Domain::GET_ALL_STATS_ACTIVE
Include stats for active domains
Sys::Virt::Domain::GET_ALL_STATS_INACTIVE
Include stats for inactive domains
Sys::Virt::Domain::GET_ALL_STATS_OTHER
Include stats for other domains
Sys::Virt::Domain::GET_ALL_STATS_PAUSED
Include stats for paused domains
Sys::Virt::Domain::GET_ALL_STATS_PERSISTENT
Include stats for persistent domains
Sys::Virt::Domain::GET_ALL_STATS_RUNNING
Include stats for running domains
Sys::Virt::Domain::GET_ALL_STATS_SHUTOFF
Include stats for shutoff domains
Sys::Virt::Domain::GET_ALL_STATS_TRANSIENT
Include stats for transient domains
Sys::Virt::Domain::GET_ALL_STATS_ENFORCE_STATS
Require that all requested stats fields are returned
Sys::Virt::Domain::GET_ALL_STATS_BACKING
Get stats for image backing files too
Sys::Virt::Domain::GET_ALL_STATS_NOWAIT
Skip stats if they can't be acquired without waiting
DOMAIN STATS FIELD CONSTANTS
The following constants are used to control which fields are returned for stats queries.
Sys::Virt::Domain::STATS_BALLOON
Balloon statistics
Sys::Virt::Domain::STATS_BLOCK
Block device info
Sys::Virt::Domain::STATS_CPU_TOTAL
CPU usage info
Sys::Virt::Domain::STATS_INTERFACE
Network interface info
Sys::Virt::Domain::STATS_STATE
General lifecycle state
Sys::Virt::Domain::STATS_VCPU
Virtual CPU info
Sys::Virt::Domain::STATS_PERF
Performance event counter values
Sys::Virt::Domain::STATS_IOTHREAD
IOThread performance statistics values
Sys::Virt::Domain::STATS_MEMORY
Memory bandwidth statistics values
Sys::Virt::Domain::STATS_DIRTYRATE
Memory dirty rate statistics
Sys::Virt::Domain::STATS_VM
Hypervisor-specific stats fields for given VM
PROCESS SIGNALS
The following constants provide the names of signals which can be sent to guest processes. They mostly
correspond to POSIX signal names.
Sys::Virt::Domain::PROCESS_SIGNAL_NOP
SIGNOP
Sys::Virt::Domain::PROCESS_SIGNAL_HUP
SIGHUP
Sys::Virt::Domain::PROCESS_SIGNAL_INT
SIGINT
Sys::Virt::Domain::PROCESS_SIGNAL_QUIT
SIGQUIT
Sys::Virt::Domain::PROCESS_SIGNAL_ILL
SIGILL
Sys::Virt::Domain::PROCESS_SIGNAL_TRAP
SIGTRAP
Sys::Virt::Domain::PROCESS_SIGNAL_ABRT
SIGABRT
Sys::Virt::Domain::PROCESS_SIGNAL_BUS
SIGBUS
Sys::Virt::Domain::PROCESS_SIGNAL_FPE
SIGFPE
Sys::Virt::Domain::PROCESS_SIGNAL_KILL
SIGKILL
Sys::Virt::Domain::PROCESS_SIGNAL_USR1
SIGUSR1
Sys::Virt::Domain::PROCESS_SIGNAL_SEGV
SIGSEGV
Sys::Virt::Domain::PROCESS_SIGNAL_USR2
SIGUSR2
Sys::Virt::Domain::PROCESS_SIGNAL_PIPE
SIGPIPE
Sys::Virt::Domain::PROCESS_SIGNAL_ALRM
SIGALRM
Sys::Virt::Domain::PROCESS_SIGNAL_TERM
SIGTERM
Sys::Virt::Domain::PROCESS_SIGNAL_STKFLT
SIGSTKFLT
Sys::Virt::Domain::PROCESS_SIGNAL_CHLD
SIGCHLD
Sys::Virt::Domain::PROCESS_SIGNAL_CONT
SIGCONT
Sys::Virt::Domain::PROCESS_SIGNAL_STOP
SIGSTOP
Sys::Virt::Domain::PROCESS_SIGNAL_TSTP
SIGTSTP
Sys::Virt::Domain::PROCESS_SIGNAL_TTIN
SIGTTIN
Sys::Virt::Domain::PROCESS_SIGNAL_TTOU
SIGTTOU
Sys::Virt::Domain::PROCESS_SIGNAL_URG
SIGURG
Sys::Virt::Domain::PROCESS_SIGNAL_XCPU
SIGXCPU
Sys::Virt::Domain::PROCESS_SIGNAL_XFSZ
SIGXFSZ
Sys::Virt::Domain::PROCESS_SIGNAL_VTALRM
SIGVTALRM
Sys::Virt::Domain::PROCESS_SIGNAL_PROF
SIGPROF
Sys::Virt::Domain::PROCESS_SIGNAL_WINCH
SIGWINCH
Sys::Virt::Domain::PROCESS_SIGNAL_POLL
SIGPOLL
Sys::Virt::Domain::PROCESS_SIGNAL_PWR
SIGPWR
Sys::Virt::Domain::PROCESS_SIGNAL_SYS
SIGSYS
Sys::Virt::Domain::PROCESS_SIGNAL_RT0
SIGRT0
Sys::Virt::Domain::PROCESS_SIGNAL_RT1
SIGRT1
Sys::Virt::Domain::PROCESS_SIGNAL_RT2
SIGRT2
Sys::Virt::Domain::PROCESS_SIGNAL_RT3
SIGRT3
Sys::Virt::Domain::PROCESS_SIGNAL_RT4
SIGRT4
Sys::Virt::Domain::PROCESS_SIGNAL_RT5
SIGRT5
Sys::Virt::Domain::PROCESS_SIGNAL_RT6
SIGRT6
Sys::Virt::Domain::PROCESS_SIGNAL_RT7
SIGRT7
Sys::Virt::Domain::PROCESS_SIGNAL_RT8
SIGRT8
Sys::Virt::Domain::PROCESS_SIGNAL_RT9
SIGRT9
Sys::Virt::Domain::PROCESS_SIGNAL_RT10
SIGRT10
Sys::Virt::Domain::PROCESS_SIGNAL_RT11
SIGRT11
Sys::Virt::Domain::PROCESS_SIGNAL_RT12
SIGRT12
Sys::Virt::Domain::PROCESS_SIGNAL_RT13
SIGRT13
Sys::Virt::Domain::PROCESS_SIGNAL_RT14
SIGRT14
Sys::Virt::Domain::PROCESS_SIGNAL_RT15
SIGRT15
Sys::Virt::Domain::PROCESS_SIGNAL_RT16
SIGRT16
Sys::Virt::Domain::PROCESS_SIGNAL_RT17
SIGRT17
Sys::Virt::Domain::PROCESS_SIGNAL_RT18
SIGRT18
Sys::Virt::Domain::PROCESS_SIGNAL_RT19
SIGRT19
Sys::Virt::Domain::PROCESS_SIGNAL_RT20
SIGRT20
Sys::Virt::Domain::PROCESS_SIGNAL_RT21
SIGRT21
Sys::Virt::Domain::PROCESS_SIGNAL_RT22
SIGRT22
Sys::Virt::Domain::PROCESS_SIGNAL_RT23
SIGRT23
Sys::Virt::Domain::PROCESS_SIGNAL_RT24
SIGRT24
Sys::Virt::Domain::PROCESS_SIGNAL_RT25
SIGRT25
Sys::Virt::Domain::PROCESS_SIGNAL_RT26
SIGRT26
Sys::Virt::Domain::PROCESS_SIGNAL_RT27
SIGRT27
Sys::Virt::Domain::PROCESS_SIGNAL_RT28
SIGRT28
Sys::Virt::Domain::PROCESS_SIGNAL_RT29
SIGRT29
Sys::Virt::Domain::PROCESS_SIGNAL_RT30
SIGRT30
Sys::Virt::Domain::PROCESS_SIGNAL_RT31
SIGRT31
Sys::Virt::Domain::PROCESS_SIGNAL_RT32
SIGRT32
DOMAIN TUNABLE CONSTANTS
The following constants are useful when accessing domain tuning parameters in APIs and events
Sys::Virt::Domain::TUNABLE_CPU_CPU_SHARES
Proportional CPU weight
Sys::Virt::Domain::TUNABLE_CPU_EMULATORPIN
Emulator thread CPU pinning mask
Sys::Virt::Domain::TUNABLE_CPU_EMULATOR_PERIOD
Emulator thread CPU period
Sys::Virt::Domain::TUNABLE_CPU_EMULATOR_QUOTA
Emulator thread CPU quota
Sys::Virt::Domain::TUNABLE_CPU_IOTHREAD_PERIOD
Iothread thread CPU period
Sys::Virt::Domain::TUNABLE_CPU_IOTHREAD_QUOTA
Iothread thread CPU quota
Sys::Virt::Domain::TUNABLE_CPU_VCPUPIN
VCPU thread pinning mask
Sys::Virt::Domain::TUNABLE_CPU_VCPU_PERIOD
VCPU thread period
Sys::Virt::Domain::TUNABLE_CPU_VCPU_QUOTA
VCPU thread quota
Sys::Virt::Domain::TUNABLE_CPU_GLOBAL_PERIOD
VM global period
Sys::Virt::Domain::TUNABLE_CPU_GLOBAL_QUOTA
VM global quota
Sys::Virt::Domain::TUNABLE_BLKDEV_DISK
The name of guest disks
Sys::Virt::Domain::TUNABLE_BLKDEV_READ_BYTES_SEC
Read throughput in bytes per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_READ_IOPS_SEC
Read throughput in I/O operations per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_TOTAL_BYTES_SEC
Total throughput in bytes per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_TOTAL_IOPS_SEC
Total throughput in I/O operations per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_WRITE_BYTES_SEC
Write throughput in bytes per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_WRITE_IOPS_SEC
Write throughput in I/O operations per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_READ_BYTES_SEC_MAX
Maximum read throughput in bytes per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_READ_IOPS_SEC_MAX
Maximum read throughput in I/O operations per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX
Maximum total throughput in bytes per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX
Maximum total throughput in I/O operations per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX
Maximum write throughput in bytes per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX
Maximum write throughput in I/O operations per sec
Sys::Virt::Domain::TUNABLE_BLKDEV_SIZE_IOPS_SEC
The maximum I/O operations per second
Sys::Virt::Domain::TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX_LENGTH
The duration in seconds allowed for maximum total bytes processed per second.
Sys::Virt::Domain::TUNABLE_BLKDEV_READ_BYTES_SEC_MAX_LENGTH
The duration in seconds allowed for maximum bytes read per second.
Sys::Virt::Domain::TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX_LENGTH
The duration in seconds allowed for maximum bytes written per second.
Sys::Virt::Domain::TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX_LENGTH
The duration in seconds allowed for maximum total I/O operations processed per second.
Sys::Virt::Domain::TUNABLE_BLKDEV_READ_IOPS_SEC_MAX_LENGTH
The duration in seconds allowed for maximum I/O operations read per second.
Sys::Virt::Domain::TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX_LENGTH
The duration in seconds allowed for maximum I/O operations written per second.
Sys::Virt::Domain::TUNABLE_BLKDEV_GROUP_NAME
The name of the blkdev group
Sys::Virt::Domain::TUNABLE_IOTHREADSPIN
The I/O threads pinning
DOMAIN LIFECYCLE CONSTANTS
The following constants are useful when setting action for lifecycle events.
Sys::Virt::Domain::LIFECYCLE_POWEROFF
The poweroff lifecycle event type
Sys::Virt::Domain::LIFECYCLE_REBOOT
The reboot lifecycle event type
Sys::Virt::Domain::LIFECYCLE_CRASH
The crash lifecycle event type
DOMAIN LIFECYCLE ACTION CONSTANTS
Sys::Virt::Domain::LIFECYCLE_ACTION_DESTROY
The destroy lifecycle action
Sys::Virt::Domain::LIFECYCLE_ACTION_RESTART
The restart lifecycle action
Sys::Virt::Domain::LIFECYCLE_ACTION_RESTART_RENAME
The restart-rename lifecycle action
Sys::Virt::Domain::LIFECYCLE_ACTION_PRESERVE
The preserve lifecycle action
Sys::Virt::Domain::LIFECYCLE_ACTION_COREDUMP_DESTROY
The coredump-destroy lifecycle action
Sys::Virt::Domain::LIFECYCLE_ACTION_COREDUMP_RESTART
The coredump-restart lifecycle action
MEMORY FAILURE ACTION CONSTANTS
Sys::Virt::Domain::EVENT_MEMORY_FAILURE_ACTION_IGNORE
The failure could be ignored
Sys::Virt::Domain::EVENT_MEMORY_FAILURE_ACTION_INJECT
An MCE was injected to the guest
Sys::Virt::Domain::EVENT_MEMORY_FAILURE_ACTION_FATAL
The failure is non-recoverable and the hypervisor was not able to handle it
Sys::Virt::Domain::EVENT_MEMORY_FAILURE_ACTION_RESET
The failure is non-recoverable and the guest was not able to handle it.
MEMORY FAILURE RECIPIENT CONSTANTS
Sys::Virt::Domain::EVENT_MEMORY_FAILURE_RECIPIENT_HYPERVISOR
The memory failure was in hypervisor address space
Sys::Virt::Domain::EVENT_MEMORY_FAILURE_RECIPIENT_GUEST
The memory failure was in guest address space
MEMORY FAILURE FLAG CONSTANTS
Sys::Virt::Domain::MEMORY_FAILURE_ACTION_REQUIRED
Whether the flag is action-required or action-optional
Sys::Virt::Domain::MEMORY_FAILURE_RECURSIVE
The failure occurred while the previous fault was being handled.
MEMORY DIRTY RATE STATUS CONSTANTS
Sys::Virt::Domain::DIRTYRATE_UNSTARTED
The dirty rate is not being measured currently.
Sys::Virt::Domain::DIRTYRATE_MEASURING
The dity rate is in the process of being measured
Sys::Virt::Domain::DIRTYRATE_MEASURED
The dirty rate has been measured
AUTHORS
Daniel P. Berrange <berrange@redhat.com>
COPYRIGHT
Copyright (C) 2006 Red Hat Copyright (C) 2006-2007 Daniel P. Berrange
LICENSE
This program is free software; you can redistribute it and/or modify it under the terms of either the GNU
General Public License as published by the Free Software Foundation (either version 2 of the License, or
at your option any later version), or, the Artistic License, as specified in the Perl README file.
SEE ALSO
Sys::Virt, Sys::Virt::Error, "http://libvirt.org"
perl v5.40.0 2025-02-12 Sys::Virt::Domain(3pm)