Commit Graph

179 Commits

Author SHA1 Message Date
Peter Krempa
bb09798fbe lib: Add API for setting the threshold size for VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD
The new API can be used to configure the threshold when
VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD should be fired.
2017-03-27 10:09:49 +02:00
Peter Krempa
085e794a86 lib: Introduce event for tracking disk backing file write threshold
When using thin provisioning, management tools need to resize the disk
in certain cases. To avoid having them to poll disk usage introduce an
event which will be fired when a given offset of the storage is written
by the hypervisor. Together with the API which will be added later, it
will allow registering thresholds for given storage backing volumes and
this event will then notify management if the threshold is exceeded.
2017-03-27 09:29:57 +02:00
Peter Krempa
8f657259bb lib: Add API for specific vCPU hot(un)plug
Similarly to domainSetGuestVcpus this commit adds API which allows to
modify state of individual vcpus rather than just setting the count.

This allows to enable CPUs in specific guest NUMA nodes to achieve any
necessary configuration.
2017-02-21 15:06:59 +01:00
Jiri Denemark
dc2bfdc815 Update remote_protocol-structs for new events
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-01-09 19:53:55 +01:00
Daniel P. Berrange
3b7bd6e540 remote: implement secret lifecycle event APIs
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-01-09 15:53:49 +00:00
Daniel P. Berrange
c50070173d Add domain event for metadata changes
When changing the metadata via virDomainSetMetadata, we now
emit an event to notify the app of changes. This is useful
when co-ordinating different applications read/write of
custom metadata.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-01-09 15:53:00 +00:00
John Ferlan
0c234889c4 storage: Introduce virStorageVolInfoFlags
https://bugzilla.redhat.com/show_bug.cgi?id=1332019

This function will essentially be a wrapper to virStorageVolInfo in order
to provide a mechanism to have the "physical" size of the volume returned
instead of the "allocation" size. This will provide similar capabilities to
the virDomainBlockInfo which can return both allocation and physical of a
domain storage volume.

NB: Since we're reusing the _virStorageVolInfo and not creating a new
_virStorageVolInfoFlags structure, we'll need to generate the rpc APIs
remoteStorageVolGetInfoFlags and remoteDispatchStorageVolGetInfoFlags
(although both were originally created from gendispatch.pl and then
just copied into daemon/remote.c and src/remote/remote_driver.c).

The new API will allow the usage of a VIR_STORAGE_VOL_GET_PHYSICAL flag
and will make the decision to return the physical or allocation value
into the allocation field.

In order to get that physical value, virStorageBackendUpdateVolTargetInfoFD
adds logic to fill in physical value matching logic in qemuStorageLimitsRefresh
used by virDomainBlockInfo when the domain is inactive.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-12-20 13:52:39 -05:00
Peter Krempa
c74cae234e Fix remote_protocol-structs after recent commit
Commit 0adc9d26ae broke the build since
remote_protocol-structs was not updated.
2016-08-23 15:47:10 -04:00
Jovanka Gulicoska
43a6b37b24 Introduce node device update event as top level event
This event is emitted when a nodedev XML definition is updated,
like when cdrom media is changed in a cdrom block device.

Also includes node device update event implementation for udev
backend, virsh nodedev-event support, and event-test support
2016-08-15 08:30:56 -04:00
Peter Krempa
6293644eb0 remote: Fix indentation of the remote protocol structs check file 2016-08-02 16:17:40 +02:00
Jovanka Gulicoska
9b13df379c remote: implement node device lifecycle event APIs 2016-08-02 09:52:00 -04:00
Daniel P. Berrange
0330848207 Promote storage pool refresh lifecycle event to top level event
The VIR_STORAGE_POOL_EVENT_REFRESHED constant does not
reflect any change in the lifecycle of the storage pool.

It should thus not be part of the storage pool lifecycle
event set, but rather be a top level event in its own
right. Thus we introduce VIR_STORAGE_POOL_EVENT_ID_REFRESH
to replace it.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-06-24 18:26:11 +01:00
Peter Krempa
3ebf7ca07e lib: Add API to set individual vcpu usage in the guest via guest agent
To allow finer-grained control of vcpu state using guest agent this API
can be used to individually set the state of the vCPU.

This will allow to better control NUMA enabled guests and/or test
various vCPU configurations.
2016-06-22 09:25:47 +02:00
Peter Krempa
800244faf3 lib: Add API to query guest vcpu info using guest agent
Add a rather universal API implemented via typed params that will allow
to query the guest agent for the state and possibly other aspects of
guest vcpus.
2016-06-22 08:16:31 +02:00
Jovanka Gulicoska
22fb4374da remote: implement storage lifecycle event APIs 2016-06-16 12:22:11 -04:00
Peter Krempa
5be120710e Add VIR_DOMAIN_EVENT_ID_DEVICE_REMOVAL_FAILED event
Since we didn't opt to use one single event for device lifecycle for a
VM we are missing one last event if the device removal failed. This
event will be emitted once we asked to eject the device but for some
reason it is not possible.
2016-04-13 13:26:29 +02:00
Martin Kletzander
c62e7702c0 remote: Add flags to remote_protocol-structs
Caused by 3b6c818532.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-03-31 14:07:46 +02:00
Qiaowei Ren
dd00767cbd perf: implement the remote protocol for perf event
Add remote support for perf event.

Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-3-git-send-email-qiaowei.ren@intel.com
2016-03-29 13:13:05 +01:00
Cristian Klein
1a1246ec7d Add public APIs for post-copy migration
To use post-copy one has to start the migration with
VIR_MIGRATE_POSTCOPY flag and, while migration is in progress, call
virDomainMigrateStartPostCopy() to switch from pre-copy to post-copy.

Signed-off-by: Cristian Klein <cristiklein@gmail.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-03-21 15:15:46 +01:00
Jiri Denemark
f289300181 Introduce job completed event
The VIR_DOMAIN_EVENT_ID_JOB_COMPLETED event will be triggered once a job
(such as migration) finishes and it will contain statistics for the job
as one would get by calling virDomainGetJobStats. Thanks to this event
it is now possible to get statistics of a completed migration of a
transient domain on the source host.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-03-08 16:26:00 +01:00
Jiri Denemark
65e44a44b2 Fix formatting in remote_protocol-structs
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-03-01 15:57:20 +01:00
Nikolay Shirokovskiy
f484310add daemon: add connection close rpc
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
2016-03-01 14:18:16 +00:00
Jiri Denemark
0b50f4a025 Introduce migration iteration event
The VIR_DOMAIN_EVENT_ID_MIGRATION_ITERATION event will be triggered
whenever VIR_DOMAIN_JOB_MEMORY_ITERATION changes its value, i.e.,
whenever a new iteration over guest memory pages is started during
migration.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-01-21 16:36:08 +01:00
Martin Kletzander
e4c8b67024 protocol: Don't use rename as a variable name
That causes shadowing errors on older compilers.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-08-15 17:15:33 +02:00
Tomas Meszaros
9f7a559a6d Introduce virDomainRename API
Also, among with this new API new ACL that restricts rename
capability is invented too.

Signed-off-by: Tomas Meszaros <exo@tty.sk>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-08-14 10:50:20 +02:00
Ján Tomko
e8982c88bd Introduce virDomainSetUserPassword API
For setting passwords of users inside the domain.

With the VIR_DOMAIN_PASSWORD_ENCRYPTED flag set, the password
is assumed to be already encrypted by the method required
by the guest OS.

https://bugzilla.redhat.com/show_bug.cgi?id=1174177
2015-05-21 16:04:01 +02:00
John Ferlan
5bb343f355 remote: Add support for AddIOThread and DelIOThread
Add remote support for the add/delete IOThread API's
2015-04-27 12:36:36 -04:00
Ján Tomko
1882c0bd8d Add VIR_DOMAIN_EVENT_ID_DEVICE_ADDED event
The counterpart to VIR_DOMAIN_EVENT_ID_DEVICE_REMOVED.

https://bugzilla.redhat.com/show_bug.cgi?id=1206114
2015-04-15 17:06:01 +02:00
Ján Tomko
a96b68e7a4 Rename DomainGetIOThreadsInfo to DomainGetIOThreadInfo
While it returns info about multiple threads, the version
without the plural is easier to read.
2015-03-26 16:11:10 +01:00
Michal Privoznik
3640245db7 RPC: Allow HW address in remote_domain_interface struct to be NULL
Not all NICs (esp. the virtual ones like TUN) must have a hardware
address. Teach our RPC that it's possible.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-03-18 09:12:36 +01:00
Nehal J Wani
71546d1798 domifaddr: Implement the remote protocol
daemon/remote.c
   * Define remoteSerializeDomainInterface, remoteDispatchDomainInterfaceAddresses

src/remote/remote_driver.c
   * Define remoteDomainInterfaceAddresses

src/remote/remote_protocol.x
   * New RPC procedure: REMOTE_PROC_DOMAIN_INTERFACE_ADDRESSES
   * Define structs remote_domain_ip_addr, remote_domain_interface,
     remote_domain_interfaces_addresse_args, remote_domain_interface_addresses_ret
   * Introduce upper bounds (to handle DoS attacks):
     REMOTE_DOMAIN_INTERFACE_MAX = 2048
     REMOTE_DOMAIN_IP_ADDR_MAX = 2048
     Restrictions on the maximum number of aliases per interface were
     removed after kernel v2.0, and theoretically, at present, there
     are no upper limits on number of interfaces per virtual machine
     and on the number of IP addresses per interface.

src/remote_protocol-structs
   * New structs added

Signed-off-by: Nehal J Wani <nehaljw.kkd1@gmail.com>
2015-03-17 15:15:38 +00:00
John Ferlan
d8977b8ea3 remote: Implement the plumbing for virDomainPinIOThread
Implement the remote plumbing.
2015-03-11 12:23:33 -04:00
John Ferlan
1e5a8ddc81 remote: Implement the remote plumbing for virDomainGetIOThreadsInfo
Implement the remote plumbing for virDomainGetIOThreadsInfo

Signed-off-by: John Ferlan <jferlan@redhat.com>
2015-03-06 06:49:32 -05:00
Daniel P. Berrange
2a5ee95441 Add new virDomainDefineXMLFlags public API
The virDomainDefineXML method is one of the few that still lacks
an 'unsigned int flags' parameter. This will be needed for adding
XML validation to this API. virDomainCreateXML fortunately already
has flags.
2015-01-13 10:35:09 +00:00
Tomoki Sekiyama
ee3dc4f19b remote: Implement the remote protocol for virDomainGetFSInfo
Add daemon and driver code to (de-)serialize virDomainFSInfo.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
2014-11-24 10:04:32 -05:00
Peter Krempa
1a4609101b event: Add guest agent lifecycle event
As qemu is now able to notify us about change of the channel state used
for communication with the guest agent we now can more precisely track
the state of the guest agent.

To allow notifying management apps this patch implements a new event
that will be triggered on changes of the guest agent state.
2014-11-24 15:39:17 +01:00
Michal Privoznik
fa5c5580d6 Introduce virNodeAllocPages
A long time ago in a galaxy far, far away it has been decided
that libvirt will manage not only domains but host as well. And
with my latest work on qemu driver supporting huge pages, we miss
the cherry on top: an API to allocate huge pages on the run.
Currently users are forced to log into the host and adjust the
huge pages pool themselves.  However, with this API the problem
is gone - they can both size up and size down the pool.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-09-25 10:24:44 +02:00
Pavel Hrdina
e426718129 event: introduce new event for tunable values
This new event will use typedParameters to expose what has been actually
updated and the reason is that we can in the future extend any tunable
values or add new tunable values. With typedParameters we don't have to
worry about creating some other events, we will just use this universal
event to inform user about updates.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2014-09-23 21:49:57 +02:00
Eric Blake
1069e3b90c blockcopy: remote implementation for new API
Fairly straightforward - I got lucky that the generated functions
worked out of the box :)

* src/remote/remote_protocol.x (remote_domain_block_copy_args):
New struct.
(REMOTE_PROC_DOMAIN_BLOCK_COPY): New RPC.
* src/remote/remote_driver.c (remote_driver): Wire it up.
* src/remote_protocol-structs: Regenerate.

Signed-off-by: Eric Blake <eblake@redhat.com>
2014-09-06 21:46:30 -06:00
Peter Krempa
89a706681c remote: Implement bulk domain stats APIs in the remote driver
Implement the remote driver support for shuffling the domain stats
around.
2014-08-28 11:59:21 +02:00
Ján Tomko
408aae3849 Add RPC implementation for virDomainOpenGraphicsFd 2014-08-26 19:26:28 +02:00
Michal Privoznik
f409df4de1 Introduce virConnectGetDomainCapabilities
The API should expose the information contained in virDomainCapsPtr.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-07-03 12:22:37 +02:00
Peter Krempa
02bffd47bd net: merge virNetworkGetDHCPLeases and virNetworkGetDHCPLeasesForMAC
Instead of maintaining two very similar APIs, add the "@mac" parameter
to virNetworkGetDHCPLeases and kill virNetworkGetDHCPLeasesForMAC. Both
of those functions would return data the same way, so making @mac an
optional filter simplifies a lot of stuff.
2014-06-27 09:38:13 +02:00
Daniel P. Berrange
6512c8b456 Change 'interface' to 'iface' in virNetworkDHCPLease
Variables/fields named 'interface' clash with system
header symbols on some platforms.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2014-06-24 13:30:16 +01:00
Nehal J Wani
990c3b6554 net-dhcp-leases: Implement the remote protocol
Implement RPC calls for virNetworkGetDHCPLeases, virNetworkGetDHCPLeasesForMAC

daemon/remote.c
   * Define remoteSerializeNetworkDHCPLeases,
            remoteDispatchNetworkGetDHCPLeases
   * Define remoteDispatchNetworkGetDHCPLeasesForMAC
   * Define helper function remoteSerializeDHCPLease

src/remote/remote_driver.c
   * Define remoteNetworkGetDHCPLeases
   * Define remoteNetworkGetDHCPLeasesForMAC
   * Define helper function remoteSerializeDHCPLease

src/remote/remote_protocol.x
   * New RPC procedure: REMOTE_PROC_NETWORK_GET_DHCP_LEASES
   * Define structs remote_network_dhcp_leases, remote_network_get_dhcp_leases_args,
                    remote_network_get_dhcp_leases_ret
   * New RPC procedure: REMOTE_PROC_NETWORK_GET_DHCP_LEASES_FOR_MAC
   * Define structs remote_network_dhcp_leases_for_mac, remote_network_get_dhcp_leases_for_mac_args,
                    remote_network_get_dhcp_leases_for_mac_ret

src/remote_protocol-structs
   * New structs added

src/rpc/gendispatch.pl
   * Add exception (s/Dhcp/DHCP) for auto-generating names of the remote functions
     in daemon/remote_dispatch.h
2014-06-24 12:26:31 +01:00
Michal Privoznik
34f2d0319d Introduce virNodeGetFreePages
The aim of the API is to get information on number of free pages
on the system. The API behaves similar to the
virNodeGetCellsFreeMemory(). User passes starting NUMA cell, the
count of nodes that he's interested in, pages sizes (yes,
multiple sizes can be queried at once) and the counts are
returned in an array.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-06-19 15:10:49 +02:00
Eric Blake
1bfe73a126 blockjob: use stable disk string in job event
When the block job event was first added, it was for block pull,
where the active layer of the disk remains the same name.  It was
also in a day where we only cared about local files, and so we
always had a canonical absolute file name.  But two things have
changed since then: we now have network disks, where determining
a single absolute string does not really make sense; and we have
two-phase jobs (copy and active commit) where the name of the
active layer changes between the first event (ready, on the old
name) and second (complete, on the pivoted name).

Adam Litke reported that having an unstable string between events
makes life harder for clients.  Furthermore, all of our API that
operate on a particular disk of a domain accept multiple strings:
not only the absolute name of the active layer, but also the
destination device name (such as 'vda').  As this latter name is
stable, even for network sources, it serves as a better string
to supply in block job events.

But backwards-compatibility demands that we should not change the
name handed to users unless they explicitly request it.  Therefore,
this patch adds a new event, BLOCK_JOB_2 (alas, I couldn't think of
any nicer name - but at least Migrate2 and Migrate3 are precedent
for a number suffix).  We must double up on emitting both old-style
and new-style events according to what clients have registered for
(see also how IOError and IOErrorReason emits double events, but
there the difference was a larger struct rather than changed
meaning of one of the struct members).

Unfortunately, adding a new event isn't something that can easily
be broken into pieces, so the commit is rather large.

* include/libvirt/libvirt.h.in (virDomainEventID): Add a new id
for VIR_DOMAIN_EVENT_ID_BLOCK_JOB_2.
(virConnectDomainEventBlockJobCallback): Document new semantics.
* src/conf/domain_event.c (_virDomainEventBlockJob): Rename field,
to ensure we catch all clients.
(virDomainEventBlockJobNew): Add parameter.
(virDomainEventBlockJobDispose)
(virDomainEventBlockJobNewFromObj)
(virDomainEventBlockJobNewFromDom)
(virDomainEventDispatchDefaultFunc): Adjust clients.
(virDomainEventBlockJob2NewFromObj)
(virDomainEventBlockJob2NewFromDom): New functions.
* src/conf/domain_event.h: Add new prototypes.
* src/libvirt_private.syms (domain_event.h): Export new functions.
* src/qemu/qemu_driver.c (qemuDomainBlockJobImpl): Generate two
different events.
* src/qemu/qemu_process.c (qemuProcessHandleBlockJob): Likewise.
* src/remote/remote_protocol.x
(remote_domain_event_block_job_2_msg): New struct.
(REMOTE_PROC_DOMAIN_EVENT_BLOCK_JOB_2): New RPC.
* src/remote/remote_driver.c
(remoteDomainBuildEventBlockJob2): New handler.
(remoteEvents): Register new event.
* daemon/remote.c (remoteRelayDomainEventBlockJob2): New handler.
(domainEventCallbacks): Register new event.
* tools/virsh-domain.c (vshEventCallbacks): Likewise.
(vshEventBlockJobPrint): Adjust client.
* src/remote_protocol-structs: Regenerate.

Signed-off-by: Eric Blake <eblake@redhat.com>
2014-06-19 06:54:12 -06:00
Michal Privoznik
0abb369380 Introduce virDomain{Get,Set}Time APIs
These APIs allow users to get or set time in a domain, which may come
handy if the domain has been resumed just recently and NTP is not
configured or hasn't kicked in yet and the guest is running
something time critical. In addition, NTP may refuse to re-set the clock
if the skew is too big.

In addition, new ACL attribute is introduced 'set_time'.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-05-15 16:15:54 +02:00
Tomoki Sekiyama
ca3d07fd45 remote: Implement virDomainFSFreeze and virDomainFSThaw
New rules are added in fixup_name in gendispatch.pl to keep the name
FSFreeze and FSThaw. This adds a new ACL permission 'fs_freeze',
which is also applied to VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE flag.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Acked-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2014-05-06 18:01:05 -06:00
Qiao Nuohan
9fbaff008c add new virDomainCoreDumpWithFormat API
--memory-only option is introduced without compression supported. Now qemu
has support for dumping domain's memory in kdump-compressed format. This
patch adds a new virDomainCoreDumpWithFormat API, so that the format in
which qemu dumps domain's memory can be specified.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2014-03-24 14:14:11 -06:00