* Han, Weidong (weidong.han@xxxxxxxxx) wrote: > Chris Wright wrote: > > This adds a remove_id sysfs entry to allow users of new_id to later > > remove the added dynid. One use case is management tools that want to > > dynamically bind/unbind devices to pci-stub driver while devices are > > assigned to KVM guests. Rather than having to track which driver was > > originally bound to the driver, a mangement tool can simply: > > > > # echo "8086 10f5" > /sys/bus/pci/drivers/pci-stub/new_id > > # echo 0000:00:19.0 > /sys/bus/pci/devices/0000:00:19.0/driver/unbind > > # echo 0000:00:19.0 > /sys/bus/pci/drivers/pci-stub/bind > > > > Guest uses device > > > > # echo "8086 10f5" > /sys/bus/pci/drivers/pci-stub/remove_id > > # echo 0000:00:19.0 > /sys/bus/pci/drivers_probe > > After above two commands, I found device 00:19.0 was still bound to pci-stub, and doesn't work. I found it needs following unbind command between remove_id and drivers_probe to make it work with original driver: > # echo "8086 10f5" > /sys/bus/pci/drivers/pci-stub/unbind > > Chris, did it also happen on your side? or did I miss something? You're right. I just forgot to put that in the changelog. thanks, -chris -- 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
