memory: Implement memory_region_get_ram_addr with mr->ram_block

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-4-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/include/exec/memory.h b/include/exec/memory.h
index d5284c2..810d2c0 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -978,14 +978,8 @@
 /**
  * memory_region_get_ram_addr: Get the ram address associated with a memory
  *                             region
- *
- * DO NOT USE THIS FUNCTION.  This is a temporary workaround while the Xen
- * code is being reworked.
  */
-static inline ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr)
-{
-    return mr->ram_addr;
-}
+ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr);
 
 uint64_t memory_region_get_alignment(const MemoryRegion *mr);
 /**