qdev: wrap default property value in an union

Wrap the Property default value (an int64_t) in a union, to prepare
for the next patch adding a uint64_t.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170607163635.17635-17-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 9523339762..784971b8d8 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -226,7 +226,9 @@ struct Property {
     PropertyInfo *info;
     ptrdiff_t    offset;
     uint8_t      bitnr;
-    int64_t      defval;
+    union {
+        int64_t i;
+    } defval;
     int          arrayoffset;
     PropertyInfo *arrayinfo;
     int          arrayfieldsize;