aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorBandan Das <bsd@redhat.com>2013-11-25 17:48:40 -0500
committerAndreas Färber <afaerber@suse.de>2014-03-13 01:21:57 +0100
commit02e7f85dac3c639b70460ce557cb6c29963db97a (patch)
treec41999ae07075f934d0602098b58a13214c0be3e
parent04e9a20b495f37f3132f4ada80fd925b4794b253 (diff)
qdev: Prepare realize/unrealize hooks for BusState
Add a "realized" property calling realize/unrealize hooks as for devices. Signed-off-by: Bandan Das <bsd@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
-rw-r--r--hw/core/qdev.c41
-rw-r--r--include/hw/qdev-core.h6
2 files changed, 47 insertions, 0 deletions
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 71b70454eb..7e58259911 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -501,6 +501,45 @@ static void bus_unparent(Object *obj)
}
}
+static bool bus_get_realized(Object *obj, Error **err)
+{
+ BusState *bus = BUS(obj);
+
+ return bus->realized;
+}
+
+static void bus_set_realized(Object *obj, bool value, Error **err)
+{
+ BusState *bus = BUS(obj);
+ BusClass *bc = BUS_GET_CLASS(bus);
+ Error *local_err = NULL;
+
+ if (value && !bus->realized) {
+ if (bc->realize) {
+ bc->realize(bus, &local_err);
+
+ if (local_err != NULL) {
+ goto error;
+ }
+
+ }
+ } else if (!value && bus->realized) {
+ if (bc->unrealize) {
+ bc->unrealize(bus, &local_err);
+
+ if (local_err != NULL) {
+ goto error;
+ }
+ }
+ }
+
+ bus->realized = value;
+ return;
+
+error:
+ error_propagate(err, local_err);
+}
+
void qbus_create_inplace(void *bus, size_t size, const char *typename,
DeviceState *parent, const char *name)
{
@@ -889,6 +928,8 @@ static void qbus_initfn(Object *obj)
object_property_add_link(obj, QDEV_HOTPLUG_HANDLER_PROPERTY,
TYPE_HOTPLUG_HANDLER,
(Object **)&bus->hotplug_handler, NULL);
+ object_property_add_bool(obj, "realized",
+ bus_get_realized, bus_set_realized, NULL);
}
static char *default_bus_get_fw_dev_path(DeviceState *dev)
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 1ed0691716..dbe473c344 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -36,6 +36,8 @@ typedef int (*qdev_event)(DeviceState *dev);
typedef void (*qdev_resetfn)(DeviceState *dev);
typedef void (*DeviceRealize)(DeviceState *dev, Error **errp);
typedef void (*DeviceUnrealize)(DeviceState *dev, Error **errp);
+typedef void (*BusRealize)(BusState *bus, Error **errp);
+typedef void (*BusUnrealize)(BusState *bus, Error **errp);
struct VMStateDescription;
@@ -174,6 +176,9 @@ struct BusClass {
*/
char *(*get_fw_dev_path)(DeviceState *dev);
void (*reset)(BusState *bus);
+ BusRealize realize;
+ BusUnrealize unrealize;
+
/* maximum devices allowed on the bus, 0: no limit. */
int max_dev;
/* number of automatically allocated bus ids (e.g. ide.0) */
@@ -199,6 +204,7 @@ struct BusState {
int allow_hotplug;
HotplugHandler *hotplug_handler;
int max_index;
+ bool realized;
QTAILQ_HEAD(ChildrenHead, BusChild) children;
QLIST_ENTRY(BusState) sibling;
};