Hi, Sorry for jumping in the middle of the thread, I missed the beginning of this. Enabling USB by default, esp. emulating a USB mouse by default is a *bad* idea. They way the periodic schedule of the various USB controllers works means that emulating a USB device means a 1000 vm exits per second extra, even when the vm is completely idle! USB powermanagement can be used to negate this, but this is off in both Linux and Windows for HID devices by default because there are too many broken HID devices.
Regards, Hans
