@@ -279,7 +279,7 @@ hw-obj-$(CONFIG_LSI_SCSI_PCI) += lsi53c895a.o
hw-obj-$(CONFIG_ESP) += esp.o
hw-obj-y += dma-helpers.o sysbus.o isa-bus.o
-hw-obj-y += qdev-addr.o
+hw-obj-y += qdev-addr.o container.o
# VGA
hw-obj-$(CONFIG_VGA_PCI) += vga-pci.o
new file mode 100644
@@ -0,0 +1,20 @@
+#include "sysbus.h"
+
+static int container_initfn(SysBusDevice *dev)
+{
+ return 0;
+}
+
+static SysBusDeviceInfo container_info = {
+ .init = container_initfn,
+ .qdev.name = "container",
+ .qdev.size = sizeof(SysBusDevice),
+ .qdev.no_user = 1,
+};
+
+static void container_init(void)
+{
+ sysbus_register_withprop(&container_info);
+}
+
+device_init(container_init);
@@ -1161,3 +1161,15 @@ void qdev_property_add_legacy(DeviceState *dev, Property *prop,
g_free(type);
}
+
+DeviceState *qdev_get_root(void)
+{
+ static DeviceState *qdev_root;
+
+ if (!qdev_root) {
+ qdev_root = qdev_create(NULL, "container");
+ qdev_init_nofail(qdev_root);
+ }
+
+ return qdev_root;
+}
@@ -482,4 +482,12 @@ const char *qdev_property_get_type(DeviceState *dev, const char *name,
*/
void qdev_property_add_legacy(DeviceState *dev, Property *prop, Error **errp);
+/**
+ * @qdev_get_root - returns the root device of the composition tree
+ *
+ * Returns:
+ * The root of the composition tree.
+ */
+DeviceState *qdev_get_root(void);
+
#endif
This is based on Jan's suggestion for how to do unique naming. The root device is the root of composition. All devices are reachable via child<> links from this device. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> --- Makefile.objs | 2 +- hw/container.c | 20 ++++++++++++++++++++ hw/qdev.c | 12 ++++++++++++ hw/qdev.h | 8 ++++++++ 4 files changed, 41 insertions(+), 1 deletions(-) create mode 100644 hw/container.c