Il 10/09/2012 18:02, Anthony Liguori ha scritto: > I think the wiring is wrong here. Why would a device assert the wakeup > reason? > > I assume on bare metal, the device asserts a single line and then > something devices how to treat the output from a given device. > > IOW, shouldn't it be something more like, SerialState exports a qemu_irq > and then the machine code decides whether to route that irq to a call to > qemu_system_wakeup(). Then depending on whether this is coming from > serial[1], determines which reason is used.
But the only way to do it, that works for -device, is to look at the SerialState's iobase. So it would still be a hack, only in ACPI rather than isa-serial.c. Paolo
