Re: [Qemu-devel] [PATCH 3/3] e1000: Old machine types, turn new subsection off

[Paolo Bonzini]

On 27/03/2018 20:01, Dr. David Alan Gilbert wrote:
>> New->old migration will place tx_legacy_vmstate_props in tx.props on the
>> destination; new->new will realize the subsection was transmitted and
>> ignore the tx_legacy_vmstate_props; old->new will not find data from the
>> subsection and copy the tx_legacy_vmstate_props into one of tx.props and
>> tx.tso_props.
> Yeh, adding a legacy_props field should do it; although we never need
> to transmit more than 2 copies.  
> 
> I'll look at this more tomorrow; I am a bit worried about testing it
> though.

Yes, I'm also afraid that we can't really do much better than careful
code review.

Paolo