As the subject says, support socket activation in virt-p2v.
I have added upstream support for socket activation to nbdkit already:
https://github.com/libguestfs/nbdkit/commit/7ff39d028c6359f5c0925ed2cf4a2...
I posted a patch for qemu-nbd, still waiting on more reviews for that
one:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg427246.html
I tested this against old and new qemu and old and new nbdkit
(note that it falls back to non-SA if SA fails).
Rich.