Commit Graph

386 Commits

Author SHA1 Message Date
Paolo Bonzini
7f5d9b206d object-add: don't create return value if failed
No need to return an empty value from object-add (it would also leak
if the command failed).  While at it, remove the "if" around object_unref
since object_unref handles NULL arguments just fine.

Reported-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200325184723.2029630-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-04-02 14:56:10 -04:00
Felipe Franciosi
836e1b3813 qom/object: enable setter for uint types
Traditionally, the uint-specific property helpers only offer getters.
When adding object (or class) uint types, one must therefore use the
generic property helper if a setter is needed (and probably duplicate
some code writing their own getters/setters).

This enhances the uint-specific property helper APIs by adding a
bitwise-or'd 'flags' field and modifying all clients of that API to set
this paramater to OBJ_PROP_FLAG_READ. This maintains the current
behaviour whilst allowing others to also set OBJ_PROP_FLAG_WRITE (or use
the more convenient OBJ_PROP_FLAG_READWRITE) in the future (which will
automatically install a setter). Other flags may be added later.

Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-16 23:02:23 +01:00
Pan Nengyuan
9b6abdcfae qom-qmp-cmds: fix two memleaks in qmp_object_add
'type/id' forgot to free in qmp_object_add, this patch fix that.

The leak stack:
Direct leak of 84 byte(s) in 6 object(s) allocated from:
    #0 0x7fe2a5ebf768 in __interceptor_malloc (/lib64/libasan.so.5+0xef768)
    #1 0x7fe2a5044445 in g_malloc (/lib64/libglib-2.0.so.0+0x52445)
    #2 0x7fe2a505dd92 in g_strdup (/lib64/libglib-2.0.so.0+0x6bd92)
    #3 0x56344954e692 in qmp_object_add /mnt/sdb/qemu-new/qemu_test/qemu/qom/qom-qmp-cmds.c:258
    #4 0x563449960f5a in do_qmp_dispatch /mnt/sdb/qemu-new/qemu_test/qemu/qapi/qmp-dispatch.c:132
    #5 0x563449960f5a in qmp_dispatch /mnt/sdb/qemu-new/qemu_test/qemu/qapi/qmp-dispatch.c:175
    #6 0x563449498a30 in monitor_qmp_dispatch /mnt/sdb/qemu-new/qemu_test/qemu/monitor/qmp.c:145
    #7 0x56344949a64f in monitor_qmp_bh_dispatcher /mnt/sdb/qemu-new/qemu_test/qemu/monitor/qmp.c:234
    #8 0x563449a92a3a in aio_bh_call /mnt/sdb/qemu-new/qemu_test/qemu/util/async.c:136

Direct leak of 54 byte(s) in 6 object(s) allocated from:
    #0 0x7fe2a5ebf768 in __interceptor_malloc (/lib64/libasan.so.5+0xef768)
    #1 0x7fe2a5044445 in g_malloc (/lib64/libglib-2.0.so.0+0x52445)
    #2 0x7fe2a505dd92 in g_strdup (/lib64/libglib-2.0.so.0+0x6bd92)
    #3 0x56344954e6c4 in qmp_object_add /mnt/sdb/qemu-new/qemu_test/qemu/qom/qom-qmp-cmds.c:267
    #4 0x563449960f5a in do_qmp_dispatch /mnt/sdb/qemu-new/qemu_test/qemu/qapi/qmp-dispatch.c:132
    #5 0x563449960f5a in qmp_dispatch /mnt/sdb/qemu-new/qemu_test/qemu/qapi/qmp-dispatch.c:175
    #6 0x563449498a30 in monitor_qmp_dispatch /mnt/sdb/qemu-new/qemu_test/qemu/monitor/qmp.c:145
    #7 0x56344949a64f in monitor_qmp_bh_dispatcher /mnt/sdb/qemu-new/qemu_test/qemu/monitor/qmp.c:234
    #8 0x563449a92a3a in aio_bh_call /mnt/sdb/qemu-new/qemu_test/qemu/util/async.c:136

Fixes: 5f07c4d60d
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200310064640.5059-1-pannengyuan@huawei.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-11 15:54:38 +01:00
Kevin Wolf
d6da78b5fd qemu-storage-daemon: Add --object option
Add a command line option to create user-creatable QOM objects.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-9-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06 17:21:28 +01:00
Kevin Wolf
5f07c4d60d qapi: Flatten object-add
Mapping object-add to the command line as is doesn't result in nice
syntax because of the nesting introduced with 'props'. This becomes
nicer and more consistent with device_add and netdev_add when we accept
properties for the object on the top level instead.

'props' is still accepted after this patch, but marked as deprecated.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-8-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06 17:21:27 +01:00
Marc-André Lureau
1bb3d7d92c qapi/qmp: add ObjectPropertyInfo.default-value
Report the default value associated with a property.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-26-marcandre.lureau@redhat.com>
[Report it as type "any", not string. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:16 +01:00
Marc-André Lureau
4df8161673 qom: introduce object_property_help()
Let's factor out the code to format a help string for a property. We
are going to reuse it in qdev next, which will bring some consistency.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-25-marcandre.lureau@redhat.com>
[Adjust for removal of object_property_get_default, move default
 after description. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:16 +01:00
Paolo Bonzini
c1f472ea65 qom: simplify qmp_device_list_properties()
All qdev properties are object properties, no need for
make_device_property_info() helper.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-24-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:16 +01:00
Marc-André Lureau
f902cb2966 vl: print default value in object help
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-23-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:16 +01:00
Paolo Bonzini
385d8f222a qdev: rename DeviceClass.props
Ensure that conflicts in the future will cause a syntax error.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:15 +01:00
Marc-André Lureau
b77ade9bb3 object: return self in object_ref()
This allow for simpler assignment with ref: foo = object_ref(bar)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200110153039.1379601-19-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:14 +01:00
Marc-André Lureau
9859facc04 object: release all props
Class properties may have to release resources when the object is
destroyed. Let's use the existing release() callback for that, but
class properties must not release ObjectProperty, as it can be shared
by various instances.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-18-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:14 +01:00
Marc-André Lureau
840ecdfbf9 object: add object_class_property_add_link()
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-17-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:14 +01:00
Marc-André Lureau
4a8d57989b object: express const link with link property
Let's not mix child property and link property callbacks, as this is
confusing, use LinkProperty with DIRECT flag to hold the target pointer.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-16-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:14 +01:00
Marc-André Lureau
9941d37b4d object: add direct link flag
Allow the link property to hold the pointer to the target, instead of
indirectly through another variable.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-15-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:14 +01:00
Marc-André Lureau
36854207f0 object: rename link "child" to "target"
A child property is a different kind of property. Let's use "target"
for the link target.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-14-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:14 +01:00
Marc-André Lureau
8770bafdc9 object: check strong flag with &
The following patch is going to introduce more flags.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-13-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:13 +01:00
Marc-André Lureau
fc4fe712ae object: do not free class properties
The release callback is called during object_property_del_all(), on a
live instance. But class properties are common among all
instances. It is not currently called, because we don't release
classes, but it would not be correct if we did.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-12-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:13 +01:00
Marc-André Lureau
0e76ed0a5d object: add object_property_set_default
Add a default value to ObjectProperty and an implementation of
ObjectPropertyInit that uses it.  This will make it easier to show the
default in help messages.

Also provide convenience functions object_property_set_default_{bool,
str, int, uint}().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-11-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:13 +01:00
Marc-André Lureau
a3a162113e object: make object_class_property_add* return property
This will help calling other ObjectProperty associated functions
easily after.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-9-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:13 +01:00
Marc-André Lureau
2a1be4b348 object: add class property initializer
This callback is used to set default value in following patch "object:
add object_property_set_defaut_{bool,str,int,uint}()".

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:12 +01:00
Marc-André Lureau
ba806ffbdf object: avoid extra class property key duplication
Like object properties, no need to duplicate property name, as it is
owned already by ObjectProperty value.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-6-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:12 +01:00
Marc-André Lureau
d5e633fc97 object: add extra sanity checks
Type system checked that children class_size >= parent class_size, but
not instances. Fix that.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200110153039.1379601-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:12 +01:00
Philippe Mathieu-Daudé
89d337fdd2 qom/object: Display more helpful message when a parent is missing
QEMU object model is scarse in documentation. Some calls are
recursive, and it might be hard to figure out even trivial issues.

We can avoid developers to waste time in a debugging session by
displaying a simple error message.

This commit is also similar to e02bdf1cec ("Display more helpful
message when an object type is missing").

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200121110349.25842-7-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:11 +01:00
Philippe Mathieu-Daudé
a9ee3a9e1c qom/object: Display more helpful message when an interface is missing
When adding new devices implementing QOM interfaces, we might
forgot to add the Kconfig dependency that pulls the required
objects in when building.

Since QOM dependencies are resolved at runtime, we don't get any
link-time failures, and QEMU aborts while starting:

  $ qemu ...
  Segmentation fault (core dumped)

  (gdb) bt
  #0  0x00007ff6e96b1e35 in raise () from /lib64/libc.so.6
  #1  0x00007ff6e969c895 in abort () from /lib64/libc.so.6
  #2  0x00005572bc5051cf in type_initialize (ti=0x5572be6f1200) at qom/object.c:323
  #3  0x00005572bc505074 in type_initialize (ti=0x5572be6f1800) at qom/object.c:301
  #4  0x00005572bc505074 in type_initialize (ti=0x5572be6e48e0) at qom/object.c:301
  #5  0x00005572bc506939 in object_class_by_name (typename=0x5572bc56109a) at qom/object.c:959
  #6  0x00005572bc503dd5 in cpu_class_by_name (typename=0x5572bc56109a, cpu_model=0x5572be6d9930) at hw/core/cpu.c:286

Since the caller has access to the qdev parent/interface names,
we can simply display them to avoid starting a debugger:

  $ qemu ...
  qemu: missing interface 'fancy-if' for object 'fancy-dev'
  Aborted (core dumped)

This commit is similar to e02bdf1cec ("Display more helpful message
when an object type is missing").

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200118162348.17823-1-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:07 +01:00
Marc-André Lureau
f0d753b1c1 qdev/qom: remove some TODO limitations now that PROP_PTR is gone
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2020-01-07 17:24:29 +04:00
Peter Maydell
4800819827 * More uses of RCU_READ_LOCK_GUARD (Dave, myself)
* QOM doc improvments (Greg)
 * Cleanups from the Meson conversion (Marc-André)
 * Support for multiple -accel options (myself)
 * Many x86 machine cleanup (Philippe, myself)
 * tests/migration-test cleanup (Juan)
 * PC machine removal and next round of deprecation (Thomas)
 * kernel-doc integration (Peter, myself)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* More uses of RCU_READ_LOCK_GUARD (Dave, myself)
* QOM doc improvments (Greg)
* Cleanups from the Meson conversion (Marc-André)
* Support for multiple -accel options (myself)
* Many x86 machine cleanup (Philippe, myself)
* tests/migration-test cleanup (Juan)
* PC machine removal and next round of deprecation (Thomas)
* kernel-doc integration (Peter, myself)

# gpg: Signature made Wed 18 Dec 2019 01:35:02 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (87 commits)
  vga: cleanup mapping of VRAM for non-PCI VGA
  hw/display: Remove "rombar" hack from vga-pci and vmware_vga
  hw/pci: Remove the "command_serr_enable" property
  hw/audio: Remove the "use_broken_id" hack from the AC97 device
  hw/i386: Remove the deprecated machines 0.12 up to 0.15
  hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge
  hw/pci-host/i440fx: Extract the IGD passthrough host bridge device
  hw/pci-host/i440fx: Use definitions instead of magic values
  hw/pci-host/i440fx: Use size_t to iterate over ARRAY_SIZE()
  hw/pci-host/i440fx: Extract PCII440FXState to "hw/pci-host/i440fx.h"
  hw/pci-host/i440fx: Correct the header description
  Fix some comment spelling errors.
  target/i386: remove unused pci-assign codes
  WHPX: refactor load library
  migration: check length directly to make sure the range is aligned
  memory: include MemoryListener documentation and some missing function parameters
  docs: add memory API reference
  memory.h: Silence kernel-doc complaints
  docs: Create bitops.rst as example of kernel-docs
  bitops.h: Silence kernel-doc complaints
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-12-20 11:20:25 +00:00
Vladimir Sementsov-Ogievskiy
187c614767 hmp: drop Error pointer indirection in hmp_handle_error
We don't need Error **, as all callers pass local Error object, which
isn't used after the call. Use Error * instead.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191205174635.18758-5-vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-12-18 08:36:16 +01:00
Paolo Bonzini
3c75e12ea6 qom: add object_new_with_class
Similar to CPU and machine classes, "-accel" class names are mangled,
so we have to first get a class via accel_find and then instantiate it.
Provide a new function to instantiate a class without going through
object_class_get_name, and use it for CPUs and machines already.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:32:26 +01:00
Paolo Bonzini
1fff3c206f qom: introduce object_register_sugar_prop
Similar to the existing "-rtc driftfix" option, we will convert some
legacy "-machine" command line options to global properties on accelerators.
Because accelerators are not devices, we cannot use qdev_prop_register_global.
Instead, provide a slot in the generic object_compat_props arrays for
command line syntactic sugar.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:32:26 +01:00
Greg Kurz
d55e937d3e qom: Fix error message in object_class_property_add()
The error message in object_class_property_add() was copied from
object_property_add() in commit 16bf7f522a. Clarify that it is
about a class, not an object.

While here, have the format string in both functions to fit in a
single line for better grep-ability, despite the checkpatch warning.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <157287383591.234942.311840593519058490.stgit@bahia.tlslab.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-11-12 10:33:02 +01:00
Kevin Wolf
3e9297f365 vl: Split off user_creatable_print_help()
Printing help for --object is something that we not only want in the
system emulator, but also in tools that support --object. Move it into a
separate function in qom/object_interfaces.c to make the code accessible
for tools.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-10-14 17:12:48 +02:00
Markus Armbruster
2e5b09fd0e hw/core: Move cpu.c, cpu.h from qom/ to hw/core/
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190709152053.16670-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[Rebased onto merge commit 95a9457fd44; missed instances of qom/cpu.h
in comments replaced]
2019-08-21 13:24:01 +02:00
Markus Armbruster
d5938f29fe Clean up inclusion of sysemu/sysemu.h
In my "build everything" tree, changing sysemu/sysemu.h triggers a
recompile of some 5400 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

Almost a third of its inclusions are actually superfluous.  Delete
them.  Downgrade two more to qapi/qapi-types-run-state.h, and move one
from char/serial.h to char/serial.c.

hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and
stubs/semihost.c define variables declared in sysemu/sysemu.h without
including it.  The compiler is cool with that, but include it anyway.

This doesn't reduce actual use much, as it's still included into
widely included headers.  The next commit will tackle that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-27-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-08-16 13:31:53 +02:00
Markus Armbruster
a27bd6c779 Include hw/qdev-properties.h less
In my "build everything" tree, changing hw/qdev-properties.h triggers
a recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

Many places including hw/qdev-properties.h (directly or via hw/qdev.h)
actually need only hw/qdev-core.h.  Include hw/qdev-core.h there
instead.

hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h
and hw/qdev-properties.h, which in turn includes hw/qdev-core.h.
Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h.

While there, delete a few superfluous inclusions of hw/qdev-core.h.

Touching hw/qdev-properties.h now recompiles some 1200 objects.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16 13:31:53 +02:00
Markus Armbruster
db72581598 Include qemu/main-loop.h less
In my "build everything" tree, changing qemu/main-loop.h triggers a
recompile of some 5600 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).  It includes block/aio.h,
which in turn includes qemu/event_notifier.h, qemu/notify.h,
qemu/processor.h, qemu/qsp.h, qemu/queue.h, qemu/thread-posix.h,
qemu/thread.h, qemu/timer.h, and a few more.

Include qemu/main-loop.h only where it's needed.  Touching it now
recompiles only some 1700 objects.  For block/aio.h and
qemu/event_notifier.h, these numbers drop from 5600 to 2800.  For the
others, they shrink only slightly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-21-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster
6a0acfff99 Clean up inclusion of exec/cpu-common.h
migration/qemu-file.h neglects to include it even though it needs
ram_addr_t.  Fix that.  Drop a few superfluous inclusions elsewhere.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-14-armbru@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster
13d4ff07e8 trace: Do not include qom/cpu.h into generated trace.h
docs/devel/tracing.txt explains "since many source files include
trace.h, [the generated trace.h use] a minimum of types and other
header files included to keep the namespace clean and compile times
and dependencies down."

Commit 4815185902 "trace: Add per-vCPU tracing states for events with
the 'vcpu' property" made them all include qom/cpu.h via
control-internal.h.  qom/cpu.h in turn includes about thirty headers.
Ouch.

Per-vCPU tracing is currently not supported in sub-directories'
trace-events.  In other words, qom/cpu.h can only be used in
trace-root.h, not in any trace.h.

Split trace/control-vcpu.h off trace/control.h and
trace/control-internal.h.  Have the generated trace.h include
trace/control.h (which no longer includes qom/cpu.h), and trace-root.h
include trace/control-vcpu.h (which includes it).

The resulting improvement is a bit disappointing: in my "build
everything" tree, some 1100 out of 6600 objects (not counting tests
and objects that don't depend on qemu/osdep.h) depend on a trace.h,
and about 600 of them no longer depend on qom/cpu.h.  But more than
1300 others depend on trace-root.h.  More work is clearly needed.
Left for another day.

Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-8-armbru@redhat.com>
2019-08-16 13:31:52 +02:00
Dr. David Alan Gilbert
92fd453c67 Revert "Revert "globals: Allow global properties to be optional""
This reverts commit 8fa70dbd8b.

Because we're about to revert it's neighbour and thus uses an optional
again.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190729162903.4489-2-dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
2019-07-29 16:57:27 -04:00
Markus Armbruster
3950a37716 qom: Move HMP command handlers to qom/
Move the HMP command handlers related to QOM handlers from
monitor/hmp-cmds.c and qdev-monitor.c to new qom/qom-hmp-cmds.c, where
they are covered by MAINTAINERS section QOM.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrange" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190619201050.19040-7-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
[Also move hmp_info_qom_tree(), tweak commit message accordingly]
2019-07-02 13:36:49 +02:00
Markus Armbruster
cfbe46fcc6 qom: Move QMP command handlers to qom/
The handlers for qapi/qom.json's QMP commands are in
monitor/qmp-cmds.c.  Move them to new qom/qom-qmp-cmds.c, where they
are covered by MAINTAINERS section QOM, just like qapi/qom.json.

Move along qmp_device_list_properties() even though it's specified in
qapi/qdev.json, because it's so similar to qmp_qom_list_properties().

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrange" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190619201050.19040-6-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-07-02 07:20:08 +02:00
Markus Armbruster
a8d2532645 Include qemu-common.h exactly where needed
No header includes qemu-common.h after this commit, as prescribed by
qemu-common.h's file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-5-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c
block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c
target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h
target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h
target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h
target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and
net/tap-bsd.c fixed up]
2019-06-12 13:20:20 +02:00
Markus Armbruster
14a48c1d0d qemu-common: Move tcg_enabled() etc. to sysemu/tcg.h
Other accelerators have their own headers: sysemu/hax.h, sysemu/hvf.h,
sysemu/kvm.h, sysemu/whpx.h.  Only tcg_enabled() & friends sit in
qemu-common.h.  This necessitates inclusion of qemu-common.h into
headers, which is against the rules spelled out in qemu-common.h's
file comment.

Move tcg_enabled() & friends into their own header sysemu/tcg.h, and
adjust #include directives.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-2-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[Rebased with conflicts resolved automatically, except for
accel/tcg/tcg-all.c]
2019-06-11 20:22:09 +02:00
Richard Henderson
5e1401969b cpu: Move icount_decr to CPUNegativeOffsetState
Amusingly, we had already ignored the comment to keep this value
at the end of CPUState.  This restores the minimum negative offset
from TCG_AREG0 for code generation.

For the couple of uses within qom/cpu.c, without NEED_CPU_H, add
a pointer from the CPUState object to the IcountDecr object within
CPUNegativeOffsetState.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Philippe Mathieu-Daudé
e02bdf1cec qom/object: Display more helpful message when an object type is missing
When writing a new board, adding device which uses other devices
(container) or simply refactoring, one can discover the hard way
his machine misses some devices. In the case of containers, the
error is not obvious:

  $ qemu-system-microblaze -M xlnx-zynqmp-pmu
  **
  ERROR:/source/qemu/qom/object.c:454:object_initialize_with_type: assertion failed: (type != NULL)
  Aborted (core dumped)

And we have to look at the coredump to figure the error:

  (gdb) bt
  #1  0x00007f84773cf895 in abort () at /lib64/libc.so.6
  #2  0x00007f847961fb53 in  () at /lib64/libglib-2.0.so.0
  #3  0x00007f847967a4de in g_assertion_message_expr () at /lib64/libglib-2.0.so.0
  #4  0x000055c4bcac6c11 in object_initialize_with_type (data=data@entry=0x55c4bdf239e0, size=size@entry=2464, type=<optimized out>) at /source/qemu/qom/object.c:454
  #5  0x000055c4bcac6e6d in object_initialize (data=data@entry=0x55c4bdf239e0, size=size@entry=2464, typename=typename@entry=0x55c4bcc7c643 "xlnx.zynqmp_ipi") at /source/qemu/qom/object.c:474
  #6  0x000055c4bc9ea474 in xlnx_zynqmp_pmu_init (machine=0x55c4bdd46000) at /source/qemu/hw/microblaze/xlnx-zynqmp-pmu.c:176
  #7  0x000055c4bca3b6cb in machine_run_board_init (machine=0x55c4bdd46000) at /source/qemu/hw/core/machine.c:1030
  #8  0x000055c4bc95f6d2 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at /source/qemu/vl.c:4479

Since the caller knows the type name requested, we can simply display it
to ease development.

With this patch applied we get:

  $ qemu-system-microblaze -M xlnx-zynqmp-pmu
  qemu-system-microblaze: missing object type 'xlnx.zynqmp_ipi'
  Aborted (core dumped)

Since the assert(type) check in object_initialize_with_type() is
now impossible, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190427135642.16464-1-philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-05-24 15:29:02 -03:00
Daniel P. Berrangé
8fa70dbd8b Revert "globals: Allow global properties to be optional"
This reverts commit d7741743f4.

Relying on setting properties on parents types which may not
be relevant to certain sub-classes had unexpected side-effects
causing bugs in device config defaults. It is preferrable to
be explicit about which devices get which properties, even if
this needs repetition.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190215103239.28640-3-berrange@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-05-20 18:40:02 -04:00
Wei Yang
66e1155a69 qom: use object_new_with_type in object_new_with_propv
Function object_new_with_propv already get the Type of the object, so we
could leverage object_new_with_type here.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20190311083234.20841-1-richardw.yang@linux.intel.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-05-03 13:03:04 +02:00
Markus Armbruster
90c84c5600 qom/cpu: Simplify how CPUClass:cpu_dump_state() prints
CPUClass method dump_statistics() takes an fprintf()-like callback and
a FILE * to pass to it.  Most callers pass fprintf() and stderr.
log_cpu_state() passes fprintf() and qemu_log_file.
hmp_info_registers() passes monitor_fprintf() and the current monitor
cast to FILE *.  monitor_fprintf() casts it right back, and is
otherwise identical to monitor_printf().

The callback gets passed around a lot, which is tiresome.  The
type-punning around monitor_fprintf() is ugly.

Drop the callback, and call qemu_fprintf() instead.  Also gets rid of
the type-punning, since qemu_fprintf() takes NULL instead of the
current monitor cast to FILE *.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-15-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Markus Armbruster
11cb6c152a qom/cpu: Simplify how CPUClass::dump_statistics() prints
CPUClass method dump_statistics() takes an fprintf()-like callback and
a FILE * to pass to it.

Its only caller hmp_info_cpustats() (via cpu_dump_statistics()) passes
monitor_fprintf() and the current monitor cast to FILE *.
monitor_fprintf() casts it right back, and is otherwise identical to
monitor_printf().  The type-punning is ugly.

Drop the callback, and call qemu_printf() instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-13-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Markus Armbruster
500016e5db trace-events: Shorten file names in comments
We spell out sub/dir/ in sub/dir/trace-events' comments pointing to
source files.  That's because when trace-events got split up, the
comments were moved verbatim.

Delete the sub/dir/ part from these comments.  Gets rid of several
misspellings.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190314180929.27722-3-armbru@redhat.com
Message-Id: <20190314180929.27722-3-armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-03-22 16:18:07 +00:00