On 01/27/2016 04:40 AM, Konrad Rzeszutek Wilk wrote:
> On Wed, Dec 30, 2015 at 10:37:32AM +0800, Wen Congyang wrote:
>> It is the negotiation record for COLO.
>> Primary->Secondary:
>> control_id      0x00000000: Secondary VM is out of sync, start a new 
>> checkpoint
>> Secondary->Primary:
>>                 0x00000001: Secondary VM is suspended
>>                 0x00000002: Secondary VM is ready
>>                 0x00000003: Secondary VM is resumed
>>
>> Signed-off-by: Wen Congyang <we...@cn.fujitsu.com>
>> Signed-off-by: Yang Hongyang <hongyang.y...@easystack.cn>
>> ---
>>  docs/specs/libxl-migration-stream.pandoc | 25 +++++++++++++++++++++++--
>>  tools/libxl/libxl_sr_stream_format.h     | 11 +++++++++++
>>  tools/python/xen/migration/libxl.py      |  9 +++++++++
>>  3 files changed, 43 insertions(+), 2 deletions(-)
>>
>> diff --git a/docs/specs/libxl-migration-stream.pandoc 
>> b/docs/specs/libxl-migration-stream.pandoc
>> index 2c97d86..5166d66 100644
>> --- a/docs/specs/libxl-migration-stream.pandoc
>> +++ b/docs/specs/libxl-migration-stream.pandoc
>> @@ -1,6 +1,6 @@
>>  % LibXenLight Domain Image Format
>>  % Andrew Cooper <<andrew.coop...@citrix.com>>
>> -% Revision 1
>> +% Revision 2
>>  
>>  Introduction
>>  ============
>> @@ -119,7 +119,9 @@ type         0x00000000: END
>>  
>>               0x00000004: CHECKPOINT_END
>>  
>> -             0x00000005 - 0x7FFFFFFF: Reserved for future _mandatory_
>> +             0x00000005: CHECKPOINT_STATE
>> +
>> +             0x00000006 - 0x7FFFFFFF: Reserved for future _mandatory_
> 
> This is in the 'mandatory' records. Should it be part of optional records?
> 
> Would this checkpoint state always present on non-COLO guest migration?

No. Will be fixed in the next version

Thanks
Wen Congyang

> 
> 
> 
> .
> 




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