On 27/05/16 17:54, Alexey Kardashevskiy wrote:
> On 04/05/16 16:52, Alexey Kardashevskiy wrote:
>> This allows dynamic allocation for migrating arrays.
>>
>> Already existing VMSTATE_VARRAY_UINT32 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.
>>
>> This defines another variant of VMSTATE_VARRAY_UINT32 with WMS_ALLOC
>> flag which tells the receiving side to allocate memory for the array
>> before receiving the data.
>>
>> The first user of it is a dynamic DMA window which existence and size
>> are totally dynamic.
>>
>> Signed-off-by: Alexey Kardashevskiy <[email protected]>
>> Reviewed-by: David Gibson <[email protected]>
>> Reviewed-by: Thomas Huth <[email protected]>
>
>
> In what tree is this going to go? pseries? Or migration?
Anyone?
>
>
>
>> ---
>> include/migration/vmstate.h | 10 ++++++++++
>> 1 file changed, 10 insertions(+)
>>
>> diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
>> index 84ee355..1622638 100644
>> --- a/include/migration/vmstate.h
>> +++ b/include/migration/vmstate.h
>> @@ -386,6 +386,16 @@ extern const VMStateInfo vmstate_info_bitmap;
>> .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), \
>> + .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
>> + .info = &(_info), \
>> + .size = sizeof(_type), \
>> + .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \
>> + .offset = vmstate_offset_pointer(_state, _field, _type), \
>> +}
>> +
>> #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version,
>> _info, _type) {\
>> .name = (stringify(_field)), \
>> .version_id = (_version), \
>>
>
>
--
Alexey
