On 20/04/20 20:47, Jon Cargille wrote: >> Is it safe to allow any value from userspace here or would it maybe make >> sense to only allow [0, global halt_poll_ns]? > I believe that any value is safe; a very large value effectively disables > halt-polling, which is equivalent to setting a value of zero to explicitly > disable it, which is legal. Doesn't a large value make KVM poll all the time? But you could do that just by running "for (;;)" so there's no reason to limit the parameter. Paolo
