1 files changed, 2 insertions, 0 deletions
diff --git a/ioport.h b/ioport.h
index ae3e9da0b5..23441cba08 100644
--- a/ioport.h
+++ b/ioport.h
@@ -36,6 +36,7 @@ typedef uint32_t pio_addr_t;
 /* These should really be in isa.h, but are here to make pc.h happy.  */
 typedef void (IOPortWriteFunc)(void *opaque, uint32_t address, uint32_t data);
 typedef uint32_t (IOPortReadFunc)(void *opaque, uint32_t address);
+typedef void (IOPortDestructor)(void *opaque);
 
 void ioport_register(IORange *iorange);
 int register_ioport_read(pio_addr_t start, int length, int size,
@@ -60,6 +61,7 @@ typedef struct PortioList {
     struct MemoryRegion *address_space;
     unsigned nr;
     struct MemoryRegion **regions;
+    struct MemoryRegion **aliases;
     void *opaque;
     const char *name;
 } PortioList;