[PATCH 2/6] memory: Introduce address_space_create()

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

Introduce address_space_create(). In is similar to
address_space_init() but returns a pointer to a heap
allocated  AddressSpace.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 include/exec/memory.h | 14 ++++++++++++++
 softmmu/memory.c      | 10 ++++++++++
 2 files changed, 24 insertions(+)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index c3d417d317f..b353a48c25f 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -2418,6 +2418,20 @@ MemTxResult memory_region_dispatch_write(MemoryRegion *mr,
  */
 void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name);
 
+/**
+ * address_space_create: Create and initializes an address space
+ *
+ * @root: a #MemoryRegion that routes addresses for the address space
+ * @name: an address space name.  The name is only used for debugging
+ *        output.
+ *
+ * Returns pointer to initialized #AddressSpace.
+ *
+ * The caller is responsible for releasing the pointer returned
+ * with address_space_destroy() after use.
+ */
+AddressSpace *address_space_create(MemoryRegion *root, const char *name);
+
 /**
  * address_space_destroy: destroy an address space
  *
diff --git a/softmmu/memory.c b/softmmu/memory.c
index 185f978c925..16a2b518d8d 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -2937,6 +2937,16 @@ void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name)
     address_space_update_ioeventfds(as);
 }
 
+AddressSpace *address_space_create(MemoryRegion *root, const char *name)
+{
+    AddressSpace *as;
+
+    as = g_new(AddressSpace, 1);
+    address_space_init(as, root, name);
+
+    return as;
+}
+
 static void do_address_space_destroy(AddressSpace *as)
 {
     assert(QTAILQ_EMPTY(&as->listeners));
-- 
2.31.1