On Tue, 17 Aug 2021 at 13:02, Andrew Jones <drjo...@redhat.com> wrote: > > On Mon, Aug 16, 2021 at 11:37:21PM +0200, Paolo Bonzini wrote: > > How do we know that no one has ever used such configuration? The conversion > > was meant to be bug-compatible. > > We don't. But we do know that a zero input value was never documented > prior to 1e63fe68580, which has not yet been released. Can we claim > that an undocumented input value has undefined behavior, giving us > freedom to modify that behavior until it is documented?
Dunno; I definitely don't want a behaviour-change patch at this point in the release-cycle, though... -- PMM
