| Commit message (Collapse) | Author | Age | Files | Lines |
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This is QOM "mkdir -p". It is useful when referring to
container objects such as "/machine".
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Reintroduce CPUState as QOM object: It's abstract and derived directly
from TYPE_OBJECT for compatibility with the user emulators.
The identifier CPUState avoids conflicts between CPU() and the struct.
Introduce $(qom-twice-y) to build it separately for system and for user
emulators.
Prepare a virtual reset method, (re)introduce cpu_reset() as wrapper.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
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This function allows to obtain a singly-linked list of classes, which
can be sorted by the caller.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Function name type_class_init() gave us a wrong impression of separation
of type's "class" and "object" entities initialization. Name type_initialize()
is more appropriate for type_class_init() function (considering what operations
it performs).
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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QOM documentation states that for objects of type with @instance_size == 0 size
will be assigned to match parent object's size. But currently this feauture is
not implemented and qemu asserts during creation of object with zero instance_size.
Set appropriate value for type instance_size during type_class_init() call.
object_initialize_with_type() must call type_class_init() before asserting
type->instance_size, and object_new_with_type() must call type_class_init() before
object allocation.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Property removal modifies the list, so it is not safe to continue
iteration. We know anyway that each object can have only one
parent (see object_property_add_child), so exit after finding
the requested object.
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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object_unref().
In the old implementation, if the new value of the property links
to the same object, as the old value, that object is first unref-ed,
and then ref-ed. This leads to unintended deinitialization of that object.
In the new implementation, this is fixed.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Barabash <alexander_barabash@mentor.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Assert the object is at least sizeof(Object), not sizeof(ObjectClass).
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Add generic property accessors that take a string and parse it
appropriately for the property type. All the magic here is done
by the new string-based visitors.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Replace device_init() with generalized type_init().
While at it, unify naming convention: type_init([$prefix_]register_types)
Also, type_init() is a function, so add preceding blank line where
necessary and don't put a semicolon after the closing brace.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: malc <av1474@comtv.ru>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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These can set a link to any object, as long as it is included in
the composition tree.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This allows to restrict partial matches to objects of the expected
type. It will let people use bare names to reference drives
even though their name might be the same as a device's (e.g.
-drive id=hd0,if=none,... -device ...,drive=hd0,id=hd0).
As a useful byproduct, this fixes a problem with links of interface
type. When a link property's type is an interface, the code expects
the implementation object (not the parent object) to be stored in the
variable. The parent object does not contain the right vtable.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Add wrappers that let you get/set properties using normal C data types.
Reviewed-by: Anthony Liguori <anthony@aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Move the creation of QmpInputVisitor and QmpOutputVisitor from qmp.c
to qom/object.c, since it's the only practical way to access object
properties.
Keep this isolated such that it's easy to remove. At some point, we need
to remove all usage of QObject in the tree and replace it with GVariant.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The interface loop can be performed only on the parent object. It
does not need to be done on each interface. Similarly, we can
simplify the code by switching early from the implementation
object to the parent object.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2
- Add license (Paolo)
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Now we have the following behavior:
1) object_new() returns an object with ref = 1
2) object_initialize() does not increase the reference count (ref may be 0).
3) object_deref() will finalize the object when ref = 0. it does not free the
memory associated with the object.
4) both link and child properties correctly set the reference count.
The expected usage is the following:
1) child devices should generally be created via object_initialize() using
memory from the parent device. Adding the object as a child property will
take ownership of the object and tie the child's life cycle to the parent.
2) If a child device is created via qdev_create() or some other form of
object_new(), there must be an object_delete() call in the parent device's
finalize function.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Links had limited utility before as they only allowed a concrete type to be
specified. Now we can support abstract types and interfaces which means it's
now possible to have a link<PCIDevice>.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is mostly code movement although not entirely. This makes properties part
of the Object base class which means that we can now start using Object in a
meaningful way outside of qdev.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Reported-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This class provides the main building block for QEMU Object Model and is
extensively documented in the header file. It is largely inspired by GObject.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2
- remove printf() in type registration
- fix typo in comment (Paolo)
- make Interface private
- move object into a new directory and move header into include/qemu/
- don't make object.h depend on qemu-common.h
- remove Type and replace it with TypeImpl * (Paolo)
- use hash table to store types (Paolo)
- aggressively cache parent type (Paolo)
- make a type_register and use it with interfaces (Paolo)
- fix interface cast comment (Paolo)
- add a few more functions required in later series
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