qdev: introduce reset call back for qbus level

and make it called via qbus_reset_all().
The qbus reset callback will be used by pci bus reset.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/hw/qdev.h b/hw/qdev.h
index e5ed3333a2..5ac084f7de 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -49,12 +49,14 @@ struct DeviceState {
 
 typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent);
 typedef char *(*bus_get_dev_path)(DeviceState *dev);
+typedef int (qbus_resetfn)(BusState *bus);
 
 struct BusInfo {
     const char *name;
     size_t size;
     bus_dev_printfn print_dev;
     bus_get_dev_path get_dev_path;
+    qbus_resetfn *reset;
     Property *props;
 };