> > I think this is different in the same way that block-backup and > > block-mirror are different. Huangpeng's proposal would let you make a > > consistent snapshot of disks and RAM. > > Right. Though the point isn't about consistency (doing the disk snapshot when > memory has converged would be consistent as well), but about having the > snapshot semantically right at the time when the monitor command is issued > instead of only starting it then and being consistent at the point of completion. > > This is indeed like pre/post-copy live migration, and probably both options have > their uses. I would suggest starting with the easy one, and adding the > post-copy feature on top. > Good suggestion, The latest patches of post-copy seems updated 2 years ago. https://github.com/yamahata/qemu One question: Can post-copy fallback if exceptions happen during post-copy? Thanks ��.n��������+%������w��{.n�����o�^n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�