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-rw-r--r--hw/qdev.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/qdev.h b/hw/qdev.h
index a8df42f6fa..1c109607b4 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -223,6 +223,7 @@ extern PropertyInfo qdev_prop_drive;
 extern PropertyInfo qdev_prop_netdev;
 extern PropertyInfo qdev_prop_vlan;
 extern PropertyInfo qdev_prop_pci_devfn;
+extern PropertyInfo qdev_prop_blocksize;
 
 #define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
         .name      = (_name),                                    \
@@ -284,6 +285,8 @@ extern PropertyInfo qdev_prop_pci_devfn;
 #define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_losttickpolicy, \
                         LostTickPolicy)
+#define DEFINE_PROP_BLOCKSIZE(_n, _s, _f, _d) \
+    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_blocksize, uint16_t)
 
 #define DEFINE_PROP_END_OF_LIST()               \
     {}