White smoke can mean Coolant/Water or Fuel (stuck open injector can can do that too)
If its got a slightly blueish tint it could be a turbo oil seal or valve stem seal. If the turbo oil return line is slightly blocked it can cause the turbo to smoke too as the oil pressure can't get out of the turbo faster than its coming in and then can go past the turbo shaft ring seal.
you could try a different tune (just let it idle) and see if the smoke stops, you could try to remove the oil drain tube to make sure there is no blockages.
Hard to tell by the picture, though to me if I had to guess I'd say water/fuel. When you turned your car on how long did it take for it to smoke, 5 seconds, 30 seconds, 10 minutes? Oil typically doesn't get hot enough to burn and start smoking until the turbo gets pretty hot, can take 15 minutes of idling. water and fuel can smoke pretty instantly, also the picture looks more like either water or fuel based on on bright the "white" smoke is.