[Qemu-devel] [PATCH v2 03/16] qdev: Add a get_dev_path() function to BusInfo

[Alex Williamson <alex.williamson@redhat.com>]

This function is meant to provide a stable device path for buses
which are able to implement it.  If a bus has a globally unique
addresses scheme, one address level may be sufficient to provide
a path.  Other buses may need to recursively traverse up the
qdev tree.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---

 hw/qdev.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/hw/qdev.h b/hw/qdev.h
index be5ad67..d64619f 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -49,10 +49,13 @@ struct DeviceState {
 };
 
 typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent);
+typedef char *(*bus_get_dev_path)(DeviceState *dev);
+
 struct BusInfo {
     const char *name;
     size_t size;
     bus_dev_printfn print_dev;
+    bus_get_dev_path get_dev_path;
     Property *props;
 };