在 2013-05-24五的 14:45 +0300，Michael S. Tsirkin写道： > On Wed, May 22, 2013 at 11:46:33AM +0800, liguang wrote: > > These patches try to add ACPI Embedded Controller (EC), > > refer-to: > > ACPI SPEC v5 chapter 5 > > "ACPI Embedded Controller Interface Specification" > > > > EC is a standard ACPI device, it plays flexible roles, > > e.g. > > power controller, it can control power sequence for > > platform to enter or leave system state(0,1,3,4,5), > > it can controller CPU fan by the temperature of sensor. > > event carrier, it can pass events between platform > > and OS, so OS can execute _Qxx method which defined > > by yourself. > > > > So, I want to deliver CPU online/offline event between > > OS and QEMU for CPU hotplug feature, then we will don't > > need to "echo 1 > /sys/devices/system/cpu/cpu1/online" > > again after 'cpu-add'. > > > > patches for online/offline event handler of QEUM and > > linux kernel are writing, and will send once finished. > > > > since EC is a common device, so I send pathes separately. > > Do any non-linux guests support this device? >
In fact, any OSes support ACPI will support this device. so, windows will.
