qdev: add property type for 32bit signed integers.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/hw/qdev.h b/hw/qdev.h
index 6d0d7f4..c2609b4 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -62,6 +62,7 @@
     PROP_TYPE_UNSPEC = 0,
     PROP_TYPE_UINT16,
     PROP_TYPE_UINT32,
+    PROP_TYPE_INT32,
     PROP_TYPE_UINT64,
     PROP_TYPE_TADDR,
     PROP_TYPE_MACADDR,
@@ -156,6 +157,7 @@
 
 extern PropertyInfo qdev_prop_uint16;
 extern PropertyInfo qdev_prop_uint32;
+extern PropertyInfo qdev_prop_int32;
 extern PropertyInfo qdev_prop_uint64;
 extern PropertyInfo qdev_prop_hex32;
 extern PropertyInfo qdev_prop_hex64;
@@ -183,6 +185,8 @@
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint16, uint16_t)
 #define DEFINE_PROP_UINT32(_n, _s, _f, _d)                      \
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint32, uint32_t)
+#define DEFINE_PROP_INT32(_n, _s, _f, _d)                      \
+    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_int32, int32_t)
 #define DEFINE_PROP_UINT64(_n, _s, _f, _d)                      \
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint64, uint64_t)
 #define DEFINE_PROP_HEX32(_n, _s, _f, _d)                       \
@@ -210,6 +214,7 @@
 void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type);
 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
+void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value);
 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
 void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value);
 void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value);