[Xen-devel] [PATCH v12 15/26] libxc/restore: support COLO restore

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Changlong Xie writes ("[PATCH v12 15/26] libxc/restore: support COLO restore"):
> From: Wen Congyang <wency@xxxxxxxxxxxxxx>
> 
> a. call callbacks resume/checkpoint/suspend while secondary vm
>    status is consistent with primary
> b. send dirty pfn list to primary when checkpoint under colo
> c. send store gfn and console gfn to xl before resuming secondary vm

I have reread this and I think the general approach is fine.  I'm
going to take the detailed semantics on trust.

Previously I asked:

  I'd like some opinion from Andrew Cooper about whether he's happy with
  the interleaving of the colo-specific functionality in the middle of
  the restore code, as you have done it.  Personally I think it seems
  like it's probably the best way, but it may merit questioning, at
  least.

Andrew has not replied to object.  So I am content that we can
go forward with this approach.

Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>

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