On Fri, May 11, 2012 at 11:44:02PM +0800, Jiang Liu wrote: > On 05/11/2012 06:14 PM, Gleb Natapov wrote: > >> I'm not familiar with qemu:( > >> On native OS, admin could trigger PCI device hotplug operations through > >> /sys/bus/pci/slot/xx/power. Not sure whether that's needed for guest OS too. > >> > > Why is it needed on physical HW? May be it is needed in a VM for the > > same reason? > As Amos has mentioned, it's used power on/off a PCI device instead of physical > hotplug. Not sure whether it's needed in guest OS. Probably for assigned devices. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html