used ring: specify legacy behaviour for len field

    • Type: Bug
    • Resolution: Fixed
    • Priority: Major
    • virtio 1.0 cs03
    • Affects Version/s: virtio 1.0 cs02
    • None
    • Environment:

      Rusty Russell <rusty@rustcorp.com.au>

      many hypervisors implemented len field incorrectly.
      document existing bugs in the legacy sections.

            Assignee:
            Michael Tsirkin
            Reporter:
            Michael Tsirkin
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              Created:
              Updated:
              Resolved: