On 30 September 2011 07:47, Jan Kiszka <jan.kis...@web.de> wrote: > There is no difference between system reset after power-up or later on. > And there should be no difference between per device, per group of > devices or system-wide reset. A device model cannot tell these apart.
I think it's also useful to distinguish "system reset" meaning 'simulated reset button was pressed, causing the reset line to be asserted on various devices' from "simulation reset" meaning 'qemu effectively tore down the whole simulation and put it into the same state it would be when qemu initially starts'. I don't think you can usefully reset a single device except by asserting its simulated reset signal, except possibly for hotplug type situations where you're simulating applying power to it. > My series does not depend on this cleanup/fix, but the reason not to > apply remains wrong IMHO. (just to be clear) I'm not arguing against your patch, just more generally that I'm not sure our current model of reset is entirely coherent. -- PMM
