Commit Graph

20720 Commits

Author SHA1 Message Date
Anthony Liguori
664535c31c Merge remote-tracking branch 'qmp/queue/qmp' into staging
* qmp/queue/qmp:
  build: install qmp-commands.txt
  Add rate limiting of RTC_CHANGE, BALLOON_CHANGE & WATCHDOG events
  Add event notification for guest balloon changes
  Fix some more license versions (GPL2+ instead of GPL2)
  monitor: Fix memory leak with readline completion
  qmp: do not include monitor.h from qapi-types-core.h
  qmp: include monitor.h when needed
  kvm: add missing include files
2012-06-18 10:35:13 -05:00
Anthony Liguori
0b0cb9d310 Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony: (39 commits)
  qemu-iotests: add 036 autoclear feature bit test
  qemu-iotests: add qcow2.py set-feature-bit command
  fdc-test: introduced qtest read_without_media
  fdc: fix implied seek while there is no media in drive
  qcow2: fix autoclear image header update
  xen: Don't peek behind the BlockDriverState abstraction
  xen: Don't change -drive if=xen device name during machine init
  block: Replace bdrv_get_format() by bdrv_get_format_name()
  qemu-img: document qed format on qemu-img man page
  qemu-iotests: COW with many AIO requests on the same cluster
  qemu-iotests: Some backing file COW tests
  qcow2: Fix avail_sectors in cluster allocation code
  qcow2: Simplify calculation for COW area at the end
  qcow2: always operate caches in writeback mode
  ide: support enable/disable write cache
  block: always open drivers in writeback mode
  block: add bdrv_set_enable_write_cache
  block: copy enable_write_cache in bdrv_append
  savevm: flush after saving vm state
  block: flush in writethrough mode after writes
  ...
2012-06-18 10:34:59 -05:00
Anthony Liguori
df6606f455 Merge remote-tracking branch 'mst/tags/for_anthony' into staging
* mst/tags/for_anthony:
  pci_bridge_dev: fix error path in pci_bridge_dev_initfn()
  qdev: release parent properties on dc->init failure
  msi: Use msi/msix_present more consistently
  msi: Invoke msi/msix_write_config from PCI core
  msi: Guard msi/msix_write_config with msi_present
  msi: Invoke msi/msix_reset from PCI core
  msi: Guard msi_reset with msi_present
  ahci: Clean up reset functions
  intel-hda: Fix reset of MSI function
  ahci: Fix reset of MSI function
  rtl8139: honor RxOverflow flag in can_receive method
  shpc: unparent device before free
2012-06-18 10:18:44 -05:00
Anthony Liguori
49023ff78c Merge remote-tracking branch 'sweil/for-anthony' into staging
* sweil/for-anthony:
  Fix some more license versions (GPL2+ instead of GPL2)
  dump: Fix license version (GPL2+ instead of GPL2)
  configure: Fix build for some versions of glibc (9pfs)
  monitor: Fix memory leak with readline completion
2012-06-18 10:18:26 -05:00
Christian Borntraeger
2fb70f6f17 s390: stop target cpu on sigp initial reset
We must not run the target cpu after an initial reset. This makes
system_reset more reliable for smp guests.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-18 15:32:45 +02:00
Jens Freimann
c5854acb75 s390: make kvm_stat work on s390
Add s390_exit_reasons so kvm_stat doesn't crash when called on s390.
Look for 'vendor_id' in /proc/cpuinfo as well, instead of just for
'flags', so we can determine if we run on S390.

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-18 15:32:45 +02:00
Alexander Graf
2a60dba43c kvm: Update kernel headers
Corresponding kvm.git hash: 4e3c8a1b1c

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-18 15:32:45 +02:00
Alexander Graf
5f629d943c s390x: fix s390 virtio aliases
Some of the virtio devices have the same frontend name, but actually
implement different devices behind the scenes through aliases.

The indicator which device type to use is the architecture. On s390, we
want s390 virtio devices. On everything else, we want PCI devices.

Reflect this in the alias selection code. This way we fix commands like
-device virtio-blk on s390x which with this patch applied select the
correct virtio-blk-s390 device rather than virtio-blk-pci.

Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-18 15:32:45 +02:00
Paolo Bonzini
89bfe00043 qom: Push error reporting to object_property_find()
Avoids duplicated error_set().

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Also drop error_set() in object_property_del().]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Paolo Bonzini
8cb6789a31 qdev: Remove qdev_prop_exists()
Can be replaced everywhere with object_property_find().

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Anthony Liguori
ac7d1ba6d1 qbus: Initialize in standard way
Move code to an initfn and finalizer.
Replace do_qbus_create_inplace() with qbus_realize().

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Anthony Liguori
0866aca1de qbus: Make child devices links
Make qbus children show up as link<> properties.  There is no stable
addressing for qbus children so we use an unstable naming convention.

This is okay in QOM though because the composition name is expected to
be what's stable.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Anthony Liguori
f968fc6892 qdev: Connect busses with their parent devices
This makes SysBus part of the root hierarchy and all busses children of
their respective parent DeviceState.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Anthony Liguori
0d936928ef qdev: Convert busses to QEMU Object Model
This is far less interesting than it sounds.  We simply add an Object to each
BusState and then register the types appropriately.  Most of the interesting
refactoring will follow in the next patches.

Since we're changing fundamental type names (BusInfo -> BusClass), it all needs
to convert at once.  Fortunately, not a lot of code is affected.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Made all new bus TypeInfos static const.]
[AF: Made qbus_free() call object_delete(), required {qom,glib}_allocated]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Paolo Bonzini
8185d21639 qdev: Move SysBus initialization to sysbus.c
TYPE_SYSTEM_BUS will be local to hw/sysbus.c, so move existing references
to main_system_bus and system_bus_info there.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Anthony Liguori
09e5ab6360 qdev: Use wrapper for qdev_get_path
This makes it easier to remove it from BusInfo.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Drop now unnecessary NULL initialization in scsibus_get_dev_path()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Paolo Bonzini
fdae245f56 qdev: Remove qdev_prop_set_defaults
Instead, qdev_property_add_static can set the default.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Paolo Bonzini
4b3582b06b qdev: Clean up global properties
Now that global properties do not depend on buses anymore, set
them directly in the device instance_init function.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
bce544740a qdev: Move bus properties to abstract superclasses
In qdev, each bus in practice identified an abstract superclass, but
this was mostly hidden.  In QOM, instead, these abstract classes are
explicit so we can move bus properties there.

All bus property walks are removed, and all device property walks
are changed to look along the class hierarchy instead.

We would have duplicates if class A defines some properties and its
subclass B does not define any, because class_b->props will be
left equal to class_a->props.

The solution here is to reintroduce the class_base_init TypeInfo
callback, that was present in one of the early QOM versions but
removed (on my request...) before committing.

This breaks global bus properties, an obscure feature when used
with the command-line which is actually useful and used when used by
backwards-compatible machine types.  So this patch also adjusts the
global bus properties in hw/pc_piix.c to refer to the abstract class.

Globals and other properties must be modified in the same patch to
avoid complications related to initialization ordering.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
3cb75a7cba qdev: Move bus properties to a separate global
Simple code movement in order to simplify future refactoring.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
2f262e06f0 qdev: Push "type" property up to Object
Now that Object is a type, add an instance_init function and push
the "type" property from qdev to there.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Andreas Färber
edc92115a9 arm_l2x0: Rename "type" property to "cache-type"
Resolves a name conflict with the qdev "type" property that is about to
be moved to Object.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
7bc3018b32 m48t59: Rename "type" property to "model"
This resolves a name conflict with the qdev "type" property that is
about to move into Object.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Add braces missing in original code.]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
049cb3cfda qom: Assert that public types have a non-NULL parent field
This protects against unwanted effects of changing TYPE_OBJECT from
NULL to a string.

Suggested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
9c4b4cc436 qom: Drop type_register_static_alias() macro
It's unused.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
745549c8d0 qom: Make Object a type
Right now the base Object class has a special NULL type.  Change this so
that we will be able to add class_init and class_base_init callbacks.
To do this, remove some special casing of ObjectClass that is not really
necessary.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
3b50e311b4 qom: Add class_base_init
The class_base_init TypeInfo callback was present in one of the early
QOM versions but removed (on my request...) before committing.  We
will need it soon, add it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
32efc535b8 qom: Add object_child_foreach()
A utility function that will be used to implement hierarchical realization.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
[AF: Drop unrelated whitespace change, add Returns: in documentation]
[AF: Use new object_property_is_child() helper.]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:36 +02:00
Andreas Färber
5d9d3f4757 qom: Introduce object_property_is_{child,link}()
Avoids hardcoding partial string comparisons.

Signed-off-by: Alexander Barabash <alexander_barabash@mentor.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2012-06-18 15:14:36 +02:00
Paolo Bonzini
e7cce67f27 qom: Add object_class_get_parent()
This simple bit of functionality was missing and we'll need it soon,
so add it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
[AF: Document possible NULL return value]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:36 +02:00
malc
eb2aeacf98 audio/winwave: Fix typo
Signed-off-by: malc <av1474@comtv.ru>
2012-06-15 20:58:54 +04:00
Bruce Rogers
0cd23fcc0a build: install qmp-commands.txt
File is targeted for install, but is never installed.

Signed-off-by: Bruce Rogers <brogers@suse.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-15 13:52:38 -03:00
Daniel P. Berrange
afeecec2e8 Add rate limiting of RTC_CHANGE, BALLOON_CHANGE & WATCHDOG events
Allow certain event types to be rate limited to avoid flooding
monitor clients. The monitor_protocol_event() method is changed
such that instead of immediately emitting the event to Monitor
instances, it will call a new monitor_protocol_event_queue()
method.

This will check to see if the rate limit for the event has been
exceeded, and if so schedule a timer to wakeup at the end of the
rate limit period. If further events arrive before the timer fires,
the previously queued event will be discarded in favour of the new
event. The event will eventually be emitted when the timer fires.

This logic is applied to RTC_CHANGE, BALLOON_CHANGE & WATCHDOG
events, since the data associated with these events is stateless

 * monitor.c: Add support for rate limiting
 * monitor.h: Define monitor_global_init for one-time setup tasks
 * vl.c: Invoke monitor_global_init
 * trace-events: Add hooks for monitor event tracing

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>
2012-06-15 13:35:00 -03:00
Daniel P. Berrange
973603a813 Add event notification for guest balloon changes
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>
2012-06-15 13:34:50 -03:00
Stefan Weil
395c3b80bb Fix some more license versions (GPL2+ instead of GPL2)
Cc: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-15 10:41:05 -03:00
Stefan Weil
7618be6230 monitor: Fix memory leak with readline completion
Each string which is shown during readline completion in the QEMU monitor
is allocated dynamically but currently never deallocated.

Add the missing loop which calls g_free for the allocated strings.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-15 10:41:05 -03:00
Paolo Bonzini
ad608da51d qmp: do not include monitor.h from qapi-types-core.h
The comment is stale, monitor.h is not needed anymore (only qerror.h
is, because it contains the schema for errors).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-15 10:41:05 -03:00
Paolo Bonzini
37003adf96 qmp: include monitor.h when needed
This is needed to get file descriptors from SCM_RIGHTS.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-15 10:41:05 -03:00
Paolo Bonzini
ebd063d150 kvm: add missing include files
These are included via monitor.h right now, add them explicitly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-15 10:41:05 -03:00
Stefan Hajnoczi
d551cd50a4 qemu-iotests: add 036 autoclear feature bit test
This new test validates the autoclear feature bit behavior.  When QEMU
opens a qcow2v3 image file with an unknown autoclear feature bit the bit
should be cleared in the image file header.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:44 +02:00
Stefan Hajnoczi
1b2eff62fc qemu-iotests: add qcow2.py set-feature-bit command
This new command sets feature bits in the image file header:

  qcow2.py set-feature-bit incompatible|compatible|autoclear <bit>

The bit number must be in the range [0, 64).

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:44 +02:00
Pavel Hrdina
8b9ef60de0 fdc-test: introduced qtest read_without_media
If you try to read from a floppy drive without a media, you should get
an abnormal termination error.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:43 +02:00
Pavel Hrdina
c52acf60b6 fdc: fix implied seek while there is no media in drive
The Windows uses 'READ' command at the start of an instalation
without checking the 'dir' register. We have to abort the transfer
with an abnormal termination if there is no media in the drive.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:43 +02:00
Stefan Hajnoczi
af7b708db2 qcow2: fix autoclear image header update
The autoclear feature bits can be used for qcow2 file format features
that are safe to "drop" by old programs that do not understand the
feature.  Upon opening the image file unknown autoclear feature bits are
cleared and the image file header is rewritten, but this was happening
too early in the code when critical header fields were not yet loaded.

Process autoclear feature bits after all necessary header information
has been loaded.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:43 +02:00
Markus Armbruster
093003b1d3 xen: Don't peek behind the BlockDriverState abstraction
First offender is xen_config_dev_blk()'s use of disk->bdrv->filename.
Get the filename from disk->opts instead.  Same result, except for
snapshots: there, we now get the filename specified by the user
instead of the name of the temporary image created by bdrv_open().
Should be an improvement.

Second offender is blk_init()'s use of blkdev->bs->drv->format_name.
Simply use the appropriate interface to get the format name.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:43 +02:00
Markus Armbruster
8814a05112 xen: Don't change -drive if=xen device name during machine init
A "top" BlockDriverState has a non-empty device_name.  If the user
doesn't specify one with -drive parameter id, the system supplies a
default name.

xen_config_dev_blk() changes this name, during machine initialization.
Naughty.  Don't do that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:43 +02:00
Markus Armbruster
f8d6bba1c1 block: Replace bdrv_get_format() by bdrv_get_format_name()
So callers don't need to know anything about maximum name length.
Returning a pointer is safe, because the name string lives as long as
the block driver it names, and block drivers don't die.

Requested by Peter Maydell.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:43 +02:00
Stefan Hajnoczi
f085800e24 qemu-img: document qed format on qemu-img man page
The qemu-img.1 man page is missing the qed format from its list of
supported formats.  Document the image creation options for qed.

Suggested-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:43 +02:00
Kevin Wolf
0446919dca qemu-iotests: COW with many AIO requests on the same cluster
This one is a bit more interesting. The COW operation isn't performed
completely synchronously, and therefore dependencies must be handled
correctly when multiple requests write to the same unallocated cluster.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2012-06-15 14:03:43 +02:00
Kevin Wolf
bce283cc5d qemu-iotests: Some backing file COW tests
Looks like we're still missing these very basic tests for backing file
handling.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2012-06-15 14:03:43 +02:00