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-rw-r--r--include/system/memory.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/system/memory.h b/include/system/memory.h
index 08daf0fc59..f222743b6f 100644
--- a/include/system/memory.h
+++ b/include/system/memory.h
@@ -3047,6 +3047,15 @@ static inline MemoryRegion *address_space_translate(AddressSpace *as,
 bool address_space_access_valid(AddressSpace *as, hwaddr addr, hwaddr len,
                                 bool is_write, MemTxAttrs attrs);
 
+/**
+ * address_space_is_io: check whether an guest physical addresses
+ *                      whithin an address space is I/O memory.
+ *
+ * @as: #AddressSpace to be accessed
+ * @addr: address within that address space
+ */
+bool address_space_is_io(AddressSpace *as, hwaddr addr);
+
 /* address_space_map: map a physical memory region into a host virtual address
  *
  * May map a subset of the requested range, given by and returned in @plen.