On 01/12/2016 09:03 AM, Denis V. Lunev wrote:
There is a long-long story. OVMF VMs can not be snapsotted using 'virsh snapshot' as they have "pflash" device which is configured as "raw" image. There was a discussion in the past about that.
results of the discussion are available in this submission:
[PATCH v5 0/8] QMP wrappers for VM snapshot operations
