c8a3a1b6c4
Rather than open-coding each option request, it's easier to have common helper functions do the work. That in turn requires having convenient packed types for handling option requests and replies. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1476469998-28592-9-git-send-email-eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>