Commit Graph

96 Commits

Author SHA1 Message Date
Orit Wasserman bbf6da32b5 Add migration capabilities
The management can query the current migration capabilities using
query-migrate-capabilities QMP command.
The user can use 'info migrate_capabilities' HMP command.
Currently only XBZRLE capability is available.

Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2012-08-08 13:51:11 +02:00
Benoît Canet 2e3e331710 block: Use bdrv_get_backing_file_depth()
Use the dedicated counting function in qmp_query_block in order to
propagate the backing file depth to HMP and add backing_file_depth
to qmp-commands.hx

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-08-03 10:10:51 -03:00
Corey Bryant 208c9d1b7c qapi: Convert getfd and closefd
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-07-13 13:46:55 -03:00
Daniel P. Berrange 4860853d60 Add 'query-events' command to QMP to query async events
Sometimes it is neccessary for an application to determine
whether a particular QMP event is available, so they can
decide whether to use compatibility code instead. This
introduces a new 'query-events' command to QMP to do just
that

 { "execute": "query-events" }
 {"return": [{"name": "WAKEUP"},
             {"name": "SUSPEND"},
             {"name": "DEVICE_TRAY_MOVED"},
             {"name": "BLOCK_JOB_CANCELLED"},
             {"name": "BLOCK_JOB_COMPLETED"},
             ...snip...
             {"name": "SHUTDOWN"}]}

* monitor.c: Turn MonitorEvent -> string conversion
  into a lookup from a static table of constant strings.
  Add impl of qmp_query_events monitor command handler
* qapi-schema.json, qmp-commands.hx: Define contract of
  query-events command

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-04 13:49:35 -03:00
Luiz Capitulino 5f96415527 qapi: convert netdev_del
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-By: Laszlo Ersek <lersek@redhat.com>
2012-06-04 13:49:35 -03:00
Luiz Capitulino 928059a37b qapi: convert netdev_add
This is not a full QAPI conversion, but an intermediate step.

In essence, do_netdev_add() is split into three functions:

 1. netdev_add(): performs the actual work. This function is fully
    converted to Error (thus, it's "qapi-friendly")

 2. qmp_netdev_add(): the QMP front-end for netdev_add(). This is
    coded by hand and not auto-generated (gen=no in the schema). The
    reason for this it's a lot easier and simpler to with QemuOpts
    this way

 3. hmp_netdev_add(): HMP front-end.

This design was suggested by Paolo Bonzini.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-By: Laszlo Ersek <lersek@redhat.com>
2012-06-04 13:49:35 -03:00
Wen Congyang 783e9b4826 introduce a new monitor command 'dump-guest-memory' to dump guest's memory
The command's usage:
   dump-guest-memory [-p] protocol [begin] [length]
The supported protocol can be file or fd:
1. file: the protocol starts with "file:", and the following string is
   the file's path.
2. fd: the protocol starts with "fd:", and the following string is the
   fd's name.

Note:
  1. If you want to use gdb to process the core, please specify -p option.
     The reason why the -p option is not default is:
       a. guest machine in a catastrophic state can have corrupted memory,
          which we cannot trust.
       b. The guest machine can be in read-mode even if paging is enabled.
          For example: the guest machine uses ACPI to sleep, and ACPI sleep
          state goes in real-mode.
  2. If you don't want to dump all guest's memory, please specify the start
     physical address and the length.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-04 13:49:34 -03:00
Paolo Bonzini 31155b9b3c block: add mode argument to blockdev-snapshot-sync
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-05-10 10:32:11 +02:00
Stefan Hajnoczi c83c66c3b5 block: add 'speed' optional parameter to block-stream
Allow streaming operations to be started with an initial speed limit.
This eliminates the window of time between starting streaming and
issuing block-job-set-speed.  Users should use the new optional 'speed'
parameter instead so that speed limits are in effect immediately when
the job starts.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-04-27 11:44:50 -03:00
Stefan Hajnoczi 882ec7ce53 block: change block-job-set-speed argument from 'value' to 'speed'
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-04-27 11:44:50 -03:00
Stefan Hajnoczi db58f9c060 qmp: make block job command naming consistent
The block streaming and job commands used '_' instead of '-' for reasons
of compatibility with libvirt, which already included support for the
'_' naming.  However, the semantics of block_job_cancel have changed and
libvirt now needs to handle the new semantics.

Since the old semantics were never in a QEMU release we can still rename
the commands to use '-' instead of '_'.  Libvirt is also happy because
the new name can be used to distinguish QEMU binaries that support the
latest block-job-cancel semantics from those that include a downstream
block_job_cancel command.

Therefore, let's apply the QAPI/QMP naming rules to the block streaming
and job commands.  QEMU 1.1 will be the first release with these
commands so no upstream users can break.

Note that HMP commands are left with '_' because that is the convention
there.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-04-23 13:02:01 -03:00
Luiz Capitulino a15fef21c7 qapi: convert device_del
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-04-09 14:35:25 -03:00
Paolo Bonzini b9f8978cc4 qmp: add and use q type specifier
"O" is being used by the transaction and qom-set commands to mean "any
QObject", but it really means "do not validate the argument list".
Add a new specifier with the correct meaning.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-03-27 09:15:28 -03:00
Anthony Liguori 33cf629a37 Merge remote-tracking branch 'sstabellini/saverestore-8' into staging
* sstabellini/saverestore-8:
  xen: do not allocate RAM during INMIGRATE runstate
  xen mapcache: check if memory region has moved.
  xen: record physmap changes to xenstore
  Set runstate to INMIGRATE earlier
  Introduce "xen-save-devices-state"
  cirrus_vga: do not reset videoram

Conflicts:
	qapi-schema.json

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-19 13:39:42 -05:00
Stefano Stabellini a7ae8355b4 Introduce "xen-save-devices-state"
- add an "is_ram" flag to SaveStateEntry;

- register_savevm_live sets is_ram for live_savevm devices;

- introduce a "xen-save-devices-state" QAPI command that can be used to save
the state of all devices, but not the RAM or the block devices of the
VM.

Changes in v8:

- rename save-devices-state to xen-save-devices-state.

Changes in v7:

- rename save_devices to save-devices-state.

Changes in v6:

- remove the is_ram parameter from register_savevm_live and sets is_ram
if the device is a live_savevm device;

- introduce save_devices as a QAPI command, write a better description
for it;

- fix CODING_STYLE;

- introduce a new doc to explain the save format used by save_devices.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-03-19 18:21:00 +00:00
Luiz Capitulino e1c37d0e94 qapi: Convert migrate
The migrate command is one of those commands where HMP and QMP completely
mix up together. This made the conversion to the QAPI (which separates the
command into QMP and HMP parts) a bit difficult.

The first important change to be noticed is that this commit completes the
removal of the Monitor object from migration code, started by the previous
commit.

Another important and tricky change is about supporting the non-detached
mode. That is, if the user doesn't pass '-d' the migrate command will lock
the monitor and will only release it when migration is finished.

To support this in the new HMP command (hmp_migrate()), it is necessary
to create a timer which runs every second and checks if the migration is
still active. If it is, the timer callback will re-schedule itself to run
one second in the future. If the migration has already finished, the
monitor lock is released and the user can use it normally.

All these changes should be transparent to the user.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-03-15 10:39:52 -03:00
Paolo Bonzini 6cc2a4157b qmp: convert blockdev-snapshot-sync to a wrapper around transactions
Simplify the blockdev-snapshot-sync code and gain failsafe operation
by turning it into a wrapper around the new transaction command.  A new
option is also added matching "mode".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-03-12 15:14:07 +01:00
Paolo Bonzini bc8b094feb add mode field to blockdev-snapshot-sync transaction item
The mode field lets a management application create the snapshot
destination outside QEMU.

Right now, the only modes are "existing" and "absolute-paths".  Mirroring
introduces "no-backing-file".  In the future "relative-paths" could be
implemented too.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-03-12 15:14:07 +01:00
Paolo Bonzini 52e7c241ac rename blockdev-group-snapshot-sync
We will add other kinds of operation.  Prepare for this by adjusting
the schema.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-03-12 15:14:07 +01:00
Jeff Cody c186402c44 QMP: Add qmp command for blockdev-group-snapshot-sync
This adds the QMP command for blockdev-group-snapshot-sync. It
takes an array in as the input, for the argument devlist.  The
array consists of the following elements:

    + device:        device to snapshot. e.g. "ide-hd0", "virtio0"
    + snapshot-file: path & file for the snapshot image. e.g. "/tmp/file.img"
    + format:        snapshot format. e.g., "qcow2". Optional

There is no HMP equivalent for the command.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-02-29 15:48:39 +01:00
Gerd Hoffmann 9b9df25a47 suspend: add system_wakeup monitor command
This patch adds the system_wakeup monitor command which will simply
wake up suspended guests.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24 13:36:03 -06:00
Daniel P. Berrange f1f5f4070c Add SPICE support to add_client monitor command
With the acceptance of some new APIs to libspice-server.so it
is possible to add support for SPICE to the 'add_client'
monitor command, bringing parity with VNC. Since SPICE can
use TLS or plain connections, the command also gains a new
'tls' parameter to specify whether TLS should be attempted
on the injected client sockets.

This new feature is only enabled if building against a
libspice-server >= 0.10.1

* qmp-commands.hx: Add 'tls' parameter & missing doc for
  'skipauth' parameter
* monitor.c: Wire up SPICE for 'add_client' command
* ui/qemu-spice.h, ui/spice-core.c: Add qemu_spice_display_add_client
  API to wire up from monitor

[1] http://cgit.freedesktop.org/spice/spice/commit/server/spice.h?id=d55b68b6b44f2499278fa860fb47ff22f5011faa
    http://cgit.freedesktop.org/spice/spice/commit/server/spice.h?id=bd07dde530d9504e1cfe7ed5837fc00c26f36716

Changes in v3:
 - Added 'optional' flag to new parameters documented
 - Added no-op impl of qemu_spice_display_add_client when
   SPICE is disabled during build

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-21 10:36:05 +01:00
Anthony Liguori 5eeee3fa2e qom: add new command to search for types
This adds a command that allows searching for types that implement a property.
This allows you to do things like search for all available PCIDevices.  In the
future, we'll also have a standard interface for things with a BlockDriverState
property that a PCIDevice could implement.

This will enable search queries like, "any type that implements the BlockDevice
interface" which would allow management tools to present available block devices
without having to hard code device names.  Since an object can implement
multiple interfaces, one device could act both as a BlockDevice and a
NetworkDevice.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-03 10:41:07 -06:00
Stefan Hajnoczi fb5458cd10 qmp: add query-block-jobs
Add query-block-jobs, which shows the progress of ongoing block device
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>
2012-01-26 14:49:18 +01:00
Stefan Hajnoczi 370521a1d6 qmp: add block_job_cancel command
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>
2012-01-26 14:49:18 +01:00
Stefan Hajnoczi 2d47c6e9aa qmp: add block_job_set_speed command
Add block_job_set_speed, which sets the maximum speed for a background
block operation.

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>
2012-01-26 14:49:17 +01:00
Stefan Hajnoczi 12bd451fe0 qmp: add block_stream command
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>
2012-01-26 14:49:14 +01:00
Luiz Capitulino 80047da59b qapi: Convert block_set_io_throttle
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-18 10:23:39 -02:00
Luiz Capitulino 333a96ec9f qapi: Convert change
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-18 10:23:39 -02:00
Luiz Capitulino 270b243f91 qapi: Introduce change-vnc-password
New QMP command to change the VNC password.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-18 10:23:39 -02:00
Luiz Capitulino c245b6a37d qapi: Convert eject
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-18 10:23:39 -02:00
Luiz Capitulino 9ad5372daa qapi: Convert expire_password
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-18 10:23:38 -02:00
Luiz Capitulino fbf796fd6f qapi: Convert set_password
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-18 10:23:38 -02:00
Anthony Liguori eb6e8ea5c3 qom: qom_{get, set} monitor commands (v2)
This allows clients to read and write device model properties through QMP.  QAPI
doesn't support Visitor types yet and these commands are special in that they
don't work with fixed types.

I've added a documentation stub to qapi-schema.json so we can keep consistency
there.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-15 09:20:48 -06:00
Anthony Liguori b4b12c6247 qmp: add qom-list command
This can be used to list properties in the device model.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-15 09:20:48 -06:00
Luiz Capitulino 3dc853832d qapi: Convert migrate_set_speed
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino 4f0a993bf3 qapi: Convert migrate_set_downtime
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino 6cdedb075f qapi: Convert migrate_cancel
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino d51a67b4d3 qapi: Convert human-monitor-command
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino 6106e2492f qapi: Convert blockdev_snapshot_sync
Unfortunately, this conversion required an additional change.

In the old QMP command, the 'snapshot-file' argument is specified as
optional. The idea is to take the snapshot internally if 'snapshot-file'
is not passed. However, internal snapshots are not supported yet so
the command returns a MissingParamater error if 'snapshot-file' is not
passed. Which makes the argument actually required and will cause
compatibility breakage if we change that in the future.

To fix this the QAPI converted blockdev_snapshot_sync command makes the
'snapshot-file' argument required. Again, in practice it's actually required,
so this is not incompatible.

If we do implement internal snapshots someday, we'll need a new argument
for it.

Note that this discussion doesn't affect HMP.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino 5e7caacb25 qapi: Convert block_resize
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino d72f326431 qapi: Convert balloon
Note that the command being dropped uses the deprecated MONITOR_CMD_ASYNC
API, but the new command is a regular synchronous command. There shouldn't
be visible differences though, as MONITOR_CMD_ASYNC is internal only.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino a4dea8a9f4 qapi: Convert block_passwd
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino 4b37156c40 qapi: Convert set_link
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino ab49ab5c48 qapi: Convert inject-nmi
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino e42e818bf4 qapi: Convert cont
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino 6d3962bf84 qapi: Convert pmemsave
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:01 -02:00
Luiz Capitulino 0cfd6a9ab4 qapi: Convert memsave
Please, note that the QMP command has a new 'cpu-index' parameter.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:00 -02:00
Luiz Capitulino 22e1bb9c15 qapi: Complete system_powerdown conversion
Commit 5bc465e4b1 converted only
the HMP part of the system_powerdown command to the QAPI, this
commit completes it by converting the QMP part too.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-12-06 11:40:00 -02:00
Zhi Yong Wu 727f005e6a hmp/qmp: add block_set_io_throttle
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-12-05 14:51:35 +01:00