Re: [Qemu-devel] [PATCH v2 5/6] e1000: Choose which set of props to migrate

[Jason Wang]

On 2018年03月29日 00:36, Dr. David Alan Gilbert (git) wrote:
From: "Dr. David Alan Gilbert" <dgilb...@redhat.com>

When we're using the subsection we migrate both
the 'props' and 'tso_props' data; when we're not using
the subsection (to migrate to 2.11 or old machine types) we've
got to choose what to migrate in the main structure.

If we're using the subsection migrate 'props' in the main structure.
If we're not using the subsection then migrate the last one
that changed, which gives behaviour similar to the old behaviour.



But only after migration. Why not simply switch back to the old behavior 
if migrate_tso_props if false?

Thanks