Already existing VMSTATE_VARRAY_INT32 requires an array to be
pre-allocated, however there are cases when the size is not known in
advance and there is no real need to enforce it.

Introduce VMSTATE_VARRAY_INT32_ALLOC as we currently have for UINT32
and UINT16.

The first user of this variant will be the target/arm/machine.c cpreg
indexes/values arrays.

Signed-off-by: Eric Auger <[email protected]>
Suggested-by: Peter Maydell <[email protected]>
Reviewed-by: Peter Maydell <[email protected]>
Reviewed-by: Peter Xu <[email protected]>
---
 include/migration/vmstate.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index 89f9f49d20a..62c2abd0c49 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -447,6 +447,16 @@ extern const VMStateInfo vmstate_info_qlist;
     .offset     = vmstate_offset_pointer(_state, _field, _type),     \
 }
 
+#define VMSTATE_VARRAY_INT32_ALLOC(_field, _state, _field_num, _version, 
_info, _type) {\
+    .name       = (stringify(_field)),                               \
+    .version_id = (_version),                                        \
+    .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
+    .info       = &(_info),                                          \
+    .size       = sizeof(_type),                                     \
+    .flags      = VMS_VARRAY_INT32 | VMS_POINTER | VMS_ALLOC,        \
+    .offset     = vmstate_offset_pointer(_state, _field, _type),     \
+}
+
 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, 
_info, _type) {\
     .name       = (stringify(_field)),                               \
     .version_id = (_version),                                        \
-- 
2.53.0


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