Re: [Qemu-devel] [PATCH 1/1] RFC: net/slirp: link with libslirp

[Peter Maydell]

On Fri, 8 Feb 2019 at 20:44, Marc-André Lureau
<address@hidden> wrote:
>
> Once libslirp has received its first release, we can link with the
> external libslirp library.
>
> The migration data should be compatible with current and older qemu
> versions (same compatibility as today). See "slirp: add state
> saving/loading" patch. However, the content should be treated as a
> blob, as the format may change eventually in the future.

Could you elaborate a bit on what you mean by "the format
might change" ? It's not clear to me what libslirp's API/ABI
guarantees are here to ensure that QEMU can retain cross-QEMU-version
migration compatibility and that QEMU version X with libslirp
version Y can migrate both to and from QEMU version X with
libslirp version Z.

thanks
-- PMM