add reminder for future devices to avoid writeable 64 bit fields

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

      James Bottomley <jbottomley@odin.com>

      Problems happen if any config space action register is wider than 32 bits, because a 32 bit OS cannot now set it atomically.
      See http://article.gmane.org/gmane.comp.emulators.virtio.devel/791

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