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qdev: initialize properties via QOM 

Similarly, use the object properties also to set the default
values of the qdev properties.  This requires reordering
registration and initialization.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-02-02 09:43:02 +01:00
parent 7a7aae21cc
commit 4f2d3d705c
3 changed files with 23 additions and 21 deletions
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29
hw/qdev-properties.c
View File

@ -26,17 +26,6 @@ static void bit_prop_set(DeviceState *dev, Property *props, bool val)
*p &= ~mask;
}
static void qdev_prop_cpy(DeviceState *dev, Property *props, void *src)
{
if (props->info->type == PROP_TYPE_BIT) {
bool *defval = src;
bit_prop_set(dev, props, *defval);
} else {
char *dst = qdev_get_prop_ptr(dev, props);
memcpy(dst, src, props->info->size);
}
}
/* Bit */
static int parse_bit(DeviceState *dev, Property *prop, const char *str)
{
@ -1241,13 +1230,23 @@ void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
void qdev_prop_set_defaults(DeviceState *dev, Property *props)
{
Object *obj = OBJECT(dev);
if (!props)
return;
while (props->name) {
if (props->defval) {
qdev_prop_cpy(dev, props, props->defval);
for (; props->name; props++) {
Error *errp = NULL;
if (props->qtype == QTYPE_NONE) {
continue;
}
props++;
if (props->qtype == QTYPE_QBOOL) {
object_property_set_bool(obj, props->defval, props->name, &errp);
} else if (props->info->enum_table) {
object_property_set_str(obj, props->info->enum_table[props->defval],
props->name, &errp);
} else if (props->qtype == QTYPE_QINT) {
object_property_set_int(obj, props->defval, props->name, &errp);
}
assert(!errp);
}
}

4
hw/qdev.c
View File

@ -86,11 +86,11 @@ void qdev_set_parent_bus(DeviceState *dev, BusState *bus)
dev->parent_bus = bus;
QTAILQ_INSERT_HEAD(&bus->children, dev, sibling);
qdev_prop_set_defaults(dev, dev->parent_bus->info->props);
for (prop = qdev_get_bus_info(dev)->props; prop && prop->name; prop++) {
qdev_property_add_legacy(dev, prop, NULL);
qdev_property_add_static(dev, prop, NULL);
}
qdev_prop_set_defaults(dev, dev->parent_bus->info->props);
}
/* Create a new device. This only initializes the device state structure
@ -612,13 +612,13 @@ static void device_initfn(Object *obj)
dev->instance_id_alias = -1;
dev->state = DEV_STATE_CREATED;
qdev_prop_set_defaults(dev, qdev_get_props(dev));
for (prop = qdev_get_props(dev); prop && prop->name; prop++) {
qdev_property_add_legacy(dev, prop, NULL);
qdev_property_add_static(dev, prop, NULL);
}
object_property_add_str(OBJECT(dev), "type", qdev_get_type, NULL, NULL);
qdev_prop_set_defaults(dev, qdev_get_props(dev));
}
/* Unlink device from bus and free the structure. */

11
hw/qdev.h
View File

@ -112,8 +112,9 @@ struct Property {
const char *name;
PropertyInfo *info;
int offset;
int bitnr;
void *defval;
uint8_t bitnr;
uint8_t qtype;
int64_t defval;
};
enum PropertyType {
@ -255,7 +256,8 @@ extern PropertyInfo qdev_prop_pci_devfn;
.info = &(_prop), \
.offset = offsetof(_state, _field) \
+ type_check(_type,typeof_field(_state, _field)), \
.defval = (_type[]) { _defval }, \
.qtype = QTYPE_QINT, \
.defval = (_type)_defval, \
}
#define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) { \
.name = (_name), \
@ -263,7 +265,8 @@ extern PropertyInfo qdev_prop_pci_devfn;
.bitnr = (_bit), \
.offset = offsetof(_state, _field) \
+ type_check(uint32_t,typeof_field(_state, _field)), \
.defval = (bool[]) { (_defval) }, \
.qtype = QTYPE_QBOOL, \
.defval = (bool)_defval, \
}
#define DEFINE_PROP_UINT8(_n, _s, _f, _d) \