Add configure query interface for pvpanic-mmio.

Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
---
 include/hw/misc/pvpanic.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/hw/misc/pvpanic.h b/include/hw/misc/pvpanic.h
index f1a05b2..2f0e9f4 100644
--- a/include/hw/misc/pvpanic.h
+++ b/include/hw/misc/pvpanic.h
@@ -28,4 +28,9 @@ static inline uint16_t pvpanic_port(void)
     return object_property_get_uint(o, PVPANIC_IOPORT_PROP, NULL);
 }
 
+static inline Object *pvpanic_mmio(void)
+{
+    return object_resolve_path_type("", TYPE_PVPANIC_MMIO, NULL);
+}
+
 #endif
-- 
1.8.3.1