Add device listener interface

The Xen ioreq-server API, introduced in Xen 4.5, requires that PCI device
models explicitly register with Xen for config space accesses. This patch
adds a listener interface into qdev-core which can be used by the Xen
interface code to monitor for arrival and departure of PCI devices.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index f2bbaaf86a..cde3314896 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -17,6 +17,7 @@ typedef struct BusState BusState;
 typedef struct CharDriverState CharDriverState;
 typedef struct CompatProperty CompatProperty;
 typedef struct DeviceState DeviceState;
+typedef struct DeviceListener DeviceListener;
 typedef struct DisplayChangeListener DisplayChangeListener;
 typedef struct DisplayState DisplayState;
 typedef struct DisplaySurface DisplaySurface;