在 2013-05-23四的 15:41 +0300，Michael S. Tsirkin写道：
Juan is not available now, and Anthony asked for agenda to be sent early. So here comes:
Agenda for the meeting Tue, May 28:
Generating acpi tables
Switching the call to a bi-weekly schedule
Please, send any topic that you are interested in covering.
"add ACPI Embedded Controller"
it can work as an event carrier, so ACPI events can be passed between platform(like QEMU emulated) and OS, OS can execute _Qxx method which defined by yourself. this mechanism can be very flexible, and you can avoid bothering to create some special devices for QEMU and drivers for linux kernel. I don't have many examples, e.g. CPU hotplug, we can pass hotplug event by _Qxx method, and, Embedded Controller driver of linux kernel can get this event, so, it can trigger cpu_up process, and you'll don't need "echo 1 > /sys/devices/system/cpu/cpu1/online"
may you think of it,
Thanks!