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2012-08-13qmp: add SUSPEND_DISK eventLuiz Capitulino1-0/+14
Emitted when the guest makes a request to enter S4 state. There are three possible ways of having this event, as described here: http://lists.gnu.org/archive/html/qemu-devel/2012-07/msg02307.html I've decided to add a new event and make it indepedent of SHUTDOWN. This means that the SHUTDOWN event will eventually follow the SUSPEND_DISK event. I've choosen this way because of two reasons: 1. Having an indepedent event makes it possible to query for its existence by using query-events 2. In the future, we may allow the user to change what QEMU should do as a result of the guest entering S4. So it's a good idea to keep both events separated Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-08-13qmp: qmp-events.txt: add missing doc for the SUSPEND eventLuiz Capitulino1-0/+12
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-13qmp: qmp-events.txt: put events in alphabetical orderLuiz Capitulino1-136/+130
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-13qmp: emit the WAKEUP event when the guest is put to runLuiz Capitulino1-0/+13
Today, the WAKEUP event is emitted when a wakeup _request_ is made. This could be the system_wakeup command, for example. A better semantic would be to emit the event when the guest is already running, as that's what matters in the end. This commit does that change. In theory, this could break compatibility. In practice, it shouldn't happen though, as clients shouldn't rely on timing characteristics of the events. That is, a client relying that the guest is not running when the event arrives may break if the event arrives after the guest is already running. This commit also adds the missing documentation for the WAKEUP event. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-13qmp: switch to the new error format on the wireLuiz Capitulino1-7/+3
IMPORTANT: this BREAKS QMP's compatibility for the error response. This commit changes QMP's wire protocol to make use of the simpler error format introduced by previous commits. There are two important (and mostly incompatible) changes: 1. Almost all error classes have been replaced by GenericError. The only classes that are still supported for compatibility with libvirt are: CommandNotFound, DeviceNotActive, KVMMissingCap, DeviceNotFound and MigrationExpected 2. The 'data' field of the error dictionary is gone As an example, an error response like: { "error": { "class": "DeviceNotRemovable", "data": { "device": "virtio0" }, "desc": "Device 'virtio0' is not removable" } } Will now be emitted as: { "error": { "class": "GenericError", "desc": "Device 'virtio0' is not removable" } } Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2012-06-15Add event notification for guest balloon changesDaniel P. Berrange1-0/+18
After setting a balloon target value, applications have to continually poll 'query-balloon' to determine whether the guest has reacted to this request. The virtio-balloon backend knows exactly when the guest has reacted though, and thus it is possible to emit a JSON event to tell the mgmt application whenever the guest balloon changes. This introduces a new 'qemu_balloon_changed()' API which is to be called by balloon driver backends, whenever they have a change in balloon value. This takes the 'actual' balloon value, as would be found in the BalloonInfo struct. The qemu_balloon_change API emits a JSON monitor event which looks like: {"timestamp": {"seconds": 1337162462, "microseconds": 814521}, "event": "BALLOON_CHANGE", "data": {"actual": 944766976}} * balloon.c, balloon.h: Introduce qemu_balloon_changed() for emitting balloon change events on the monitor * hw/virtio-balloon.c: Invoke qemu_balloon_changed() whenever the guest changes the balloon actual value * monitor.c, monitor.h: Define QEVENT_BALLOON_CHANGE Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Acked-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-04-26qom: quick and dirty QOM filesystem based on FUSEAnthony Liguori1-0/+138
Here's an example session: anthony@titi:~/git/qemu/QMP$ QMP_SERVER=/tmp/server.sock ./qom-fuse tmp anthony@titi:~/git/qemu/QMP$ ls tmp machine sysbus type anthony@titi:~/git/qemu/QMP$ ls tmp/machine i440fx peripheral peripheral-anon type unattached anthony@titi:~/git/qemu/QMP$ ls tmp/machine/i440fx ioapic parent_bus pci.0 type anthony@titi:~/git/qemu/QMP$ ls tmp/machine/i440fx/pci.0 child[0] child[1] child[2] child[3] child[4] child[5] type anthony@titi:~/git/qemu/QMP$ ls tmp/machine/i440fx/pci.0/child[4] addr legacy-addr multifunction type command_serr_enable legacy-command_serr_enable parent_bus ide.0 legacy-multifunction rombar ide.1 legacy-romfile romfile anthony@titi:~/git/qemu/QMP$ cat tmp/machine/i440fx/pci.0/child[4]/type piix3-ide anthony@titi:~/git/qemu/QMP$ ls -al tmp/machine/i440fx/pci.0/child\[4\]/parent_bus lrwxr-xr-x 2 anthony anthony 4096 1969-12-31 18:00 tmp/machine/i440fx/pci.0/child[4]/parent_bus -> ../../../machine/i440fx/pci.0 Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-27qmp: document strict parsingPaolo Bonzini1-3/+17
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-02-22qmp: add DEVICE_TRAY_MOVED eventLuiz Capitulino1-0/+18
It's emitted whenever the tray is moved by the guest or by HMP/QMP commands. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Acked-by: Kevin Wolf <kwolf@redhat.com>
2012-02-22qom: add test toolsAnthony Liguori3-0/+195
Tested-by: Andreas F=E4rber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-22qmp: make qmp.py easier to useAnthony Liguori1-0/+6
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-26qmp: add block_job_cancel commandStefan Hajnoczi1-0/+24
Add block_job_cancel, which stops an active block streaming operation. When the operation has been cancelled the new BLOCK_JOB_CANCELLED event is emitted. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-01-26qmp: add block_stream commandStefan Hajnoczi1-0/+29
Add the block_stream command, which starts copy backing file contents into the image file. Also add the BLOCK_JOB_COMPLETED QMP event which is emitted when image streaming completes. Later patches add control over the background copy speed, cancelation, and querying running streaming operations. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-12-06qmp: add test tool for QMPMark Wu1-0/+126
Anthony wrote this quickly to aid in testing. It's similar to qmp-shell with a few important differences: 1) It is not interactive. That makes it useful for scripting. 2) qmp-shell: (QEMU) set_password protocol=vnc password=foo 3) qmp: $ qmp set_password --protocol=vnc --password=foo 4) Extensible, git-style interface. If an invalid command name is passed, it will try to exec qmp-$1. 5) It attempts to pretty print the JSON responses in a shell friendly format such that tools can work with the output. Hope others will also find it useful. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Mark Wu <wudxw@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-02fix spelling in QMP sub directoryDong Xu Wang1-1/+1
Cc: Markus Armbruster <armbru@redhat.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-06-01QMP: add server mode to QEMUMonitorProtocolStefan Hajnoczi1-11/+32
QEMU supports socket chardevs that establish connections like a server or a client. The QEMUMonitorProtocol class only supports connecting as a client. It is not possible to connect race-free when launching QEMU since trying to connect before QEMU has bound and is listening on the socket results in failure. Add the QEMUMonitorProtocol(server=True) argument to bind and listen on the socket. The QEMU process can then be launched and connects to the already existing QMP socket without a race condition: qmp = qmp.QEMUMonitorProtocol(monitor_path, server=True) popen = subprocess.Popen(args) qmp.accept() Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-06-01QMP: add get_events(wait=True) optionStefan Hajnoczi1-3/+8
The get_events() function polls for new QMP events and then returns. It can be useful to wait for the next QMP event so add the boolean 'wait' keyword argument. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-12-09spice: connection events.Gerd Hoffmann1-0/+64
This patch adds support for connection events to spice. The events are quite simliar to the vnc events. Unlike vnc spice uses multiple tcp channels though. qemu will report every single tcp connection (aka spice channel). If you want track spice sessions only you can filter for the main channel (channel-type == 1). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-11-17QMP/qmp-shell: Introduce HMP modeLuiz Capitulino1-1/+78
In which qmp-shell will exclusively use the HMP passthrough feature, this is useful for testing. Example: # ./qmp-shell -H qmp-sock Welcome to the HMP shell! Connected to QEMU 0.13.50 (QEMU) info network VLAN 0 devices: user.0: net=10.0.2.0, restricted=n e1000.0: model=e1000,macaddr=52:54:00:12:34:56 Devices not on any VLAN: (QEMU) Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-11-17QMP: Drop vm-info example scriptLuiz Capitulino2-37/+1
It's broken and not really useful, let's just drop it. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-11-17QMP: Revamp the qmp-shell scriptLuiz Capitulino1-35/+144
This commit updates the qmp-shell script to use the new interface introduced by the last commit. Additionally, the following fixes/features are also introduced: o TCP sockets support o Update/add documentation o Simple command-line completion o Fix a number of unhandled errors Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-11-17QMP: Revamp the Python class exampleLuiz Capitulino1-51/+106
This commit simplifies and fixes a number of problems in the Python QEMUMonitorProtocol example class. It's almost a rewrite and it DOES BREAK the qmp-shell script (which is going to be fixed in the next commit). However, I'm not going to split this in different commits because it could get up to 10 commits, it's really not worth it for a simple demo class. Highlights: o TCP sockets support o QMP events support o Add documentation o Fix a number of unhandled errors o Simplify methods that send commands to the Monitor Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-10-22Trivial fix for QMP/qmp-events.txtHidetoshi Seto1-1/+1
Fix example of STOP event that was just copy-and-pasted. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-10-01QMP/README: Update QMP homepage addressLuiz Capitulino1-1/+1
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-10-01Monitor: Introduce the qmp-commands.hx fileLuiz Capitulino1-1/+1
This file contains a copy of the following information from the qemu-monitor.hx file: o QObject handlers entries o QMP documentation (all SQMP/EQMP sections) Right now it's only used to generate the QMP docs in QMP/, but next commits will turn this into QMP's command dispatch table. It's important to note that QObject handlers entries are going to get duplicated: they will exist in both QMP's and HMP's dispatch tables. This will be fixed in the near future, when we add a proper QMP call interface and HMP is converted to use it. This way we can completely drop QObject handlers entries from HMP's tables. NOTE: HMP specific constructions, like "q|quit", have been dropped. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-08-22QMP: Update README fileLuiz Capitulino1-23/+48
A number of changes I prefer to do in one shot: - Fix example - Small clarifications - Add multiple monitors example - Add 'Development Process' section Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-01QMP: Fix python helper /wrt long return stringsJan Kiszka1-1/+5
Remove the arbitrary limitation of 1024 characters per return string and read complete lines instead. Required for device_show. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-07-01QMP: Teach basic capability negotiation to python exampleJan Kiszka2-0/+2
As sending "qmp_capabilities" on session start became mandatory, both python examples were broken. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-06-13monitor/QMP: Drop info hpet / query-hpetJan Kiszka1-1/+1
This command was of minimal use before, now it is useless as the hpet become a qdev device and is thus easily discoverable. We should definitely not set query-hpet in QMP's stone, and there is also no good reason to keep it for the interactive monitor. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-01QMP: Introduce commands documentationJan Kiszka1-2/+3
One of the most important missing feature in QMP today is its supported commands documentation. The plan is to make it part of self-description support, however self-description is a big task we have been postponing for a long time now and still don't know when it's going to be done. In order not to compromise QMP adoption and make users' life easier, this commit adds a simple text documentation which fully describes all QMP supported commands. This is not ideal for a number of reasons (harder to maintain, text-only, etc) but does improve the current situation. To avoid at least divering from the user monitor help and texi snippets, QMP bits are also maintained inside qemu-monitor.hx, and hxtool is extended to generate a single text file from them. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-05-19QMP: Add "Downstream extension of QMP" to specMarkus Armbruster1-0/+55
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2010-05-03QMP: Introduce RESUME eventLuiz Capitulino1-0/+12
It's emitted when the Virtual Machine resumes execution. We currently have the STOP event but don't have the matching RESUME one, this means that clients are notified when the VM is stopped but don't get anything when it resumes. Let's fix that as it's already causing some trouble to libvirt. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-04-18QMP: Improve RTC_CHANGE event descriptionLuiz Capitulino1-1/+1
Some people might think that this event is emitted whenever the time changes, be more specific. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-03-09QMP: Introduce WATCHDOG eventLuiz Capitulino1-0/+19
It's emitted whenever the watchdog device's timer expires. The action taken is provided in the 'data' member. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-08QMP: Introduce RTC_CHANGE eventLuiz Capitulino1-0/+15
Emitted whenever the RTC time changes. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-08QMP: Revamp the qmp-events.txt fileLuiz Capitulino1-37/+133
Now we can say it's useful, the following changes have been made: - Put events in alphabetical order - Add examples to all events - Document all 'data' members - Small corrections and cleanups Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-08QMP: Drop DEBUG eventLuiz Capitulino1-6/+0
This event has been introduced in the first round of QMP commits, turns out that it's based on the usage of the EXCP_DEBUG macro, which has discussable semantics when exposed through QMP. As libvirt doesn't use this, let's just drop it. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-10QMP: spec: Capability negotiation updatesLuiz Capitulino1-17/+29
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-10QMP: Add QEMU's version to the greeting messageLuiz Capitulino2-4/+8
With capability negotiation support clients will only have a chance to check QEMU's version (ie. issue 'query-version') after the negotiation procedure is done. It might be useful to clients to check QEMU's version before negotiating features, though. To allow that, this commit adds the QEMU's version object to the greeting message. Not really sure this is needed, but doesn't hurt anyway. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-10QMP: BLOCK_IO_ERROR event handlingLuiz Capitulino1-0/+21
This commit adds the basic definitions for the BLOCK_IO_ERROR event, but actual event emission will be introduced by the next commits. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-19QMP: Introduce VNC_INITIALIZED eventLuiz Capitulino1-0/+6
It's emitted when a VNC client session is activated by QEMU, client's information such as port, IP and auth ID (if the session is authenticated) are provided. Event example: { "event": "VNC_INITIALIZED", "timestamp": {"seconds": 1263475302, "microseconds": 150772}, "data": { "server": { "auth": "sasl", "family": "ipv4", "service": "5901", "host": "0.0.0.0"}, "client": { "family": "ipv4", "service": "46089", "host": "127.0.0.1", "sasl_username": "lcapitulino" } } } Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-19QMP: Introduce VNC_DISCONNECTED eventLuiz Capitulino1-0/+6
It's emitted when a VNC client disconnects from QEMU, client's information such as port and IP address are provided. Event example: { "event": "VNC_DISCONNECTED", "timestamp": { "seconds": 1262976601, "microseconds": 975795 }, "data": { "server": { "auth": "sasl", "family": "ipv4", "service": "5901", "host": "0.0.0.0" }, "client": { "family": "ipv4", "service": "58425", "host": "127.0.0.1", "sasl_username": "foo" } } } Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-19QMP: Introduce VNC_CONNECTED eventLuiz Capitulino1-0/+7
It's emitted when a VNC client connects to QEMU, client's information such as port and IP address are provided. Note that this event is emitted right when the connection is established. This means that it happens before authentication procedure and session initialization. Event example: { "event": "VNC_CONNECTED", "timestamp": { "seconds": 1262976601, "microseconds": 975795 }, "data": { "server": { "auth": "sasl", "family": "ipv4", "service": "5901", "host": "0.0.0.0" }, "client": { "family": "ipv4", "service": "58425", "host": "127.0.0.1" } } } Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-19QMP: Update spec fileLuiz Capitulino1-26/+34
- Remove "draft" status - Change default success response to be json-object - Change error and event data member to be a json-object - Update examples - Add new section "Compatibility Considerations" - Other fixes and clarifications Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-19QMP: Update README fileLuiz Capitulino1-11/+23
- Fix output description - Fix command-line usage notes - Minor improvements Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-07QMP: add human-readable description to error responseMarkus Armbruster1-1/+4
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-03QMP: Introduce vm-infoLuiz Capitulino1-0/+32
A Python script which uses qmp.py to print some simple VM info. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-03QMP: Introduce qmp-shellLuiz Capitulino2-0/+144
This is a very simple shell written in Python for demonstration purposes. Unfortunately it's a bit awkward right now, as the user has to specify the arguments names and the printed data can be a raw dictionary or list, like the following example: (QEMU) pci_add pci_addr=auto type=nic {u'slot': 5, u'bus': 0, u'domain': 0, u'function': 0} (QEMU) It's worth to note that the shell is broken into two files. One is the shell itself, the other is the QMP class which handles the communication with QEMU. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-03QMP: Introduce qmp-events.txtLuiz Capitulino1-0/+26
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-03QMP: Introduce specificationLuiz Capitulino1-0/+192
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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