Depends what the whitewash is and whats underneath, it is generally varov rastvor a cement/lime render. you would need to key in any covering by making multiple indents with a chipping hammer or similar.
There are then gauzes and plasters, the best mainly austrian or german ................................and then you need to find a plasterer
gypscarton is not expensive and if you have an older property an opportunity to put some insulation in between, I have done this to preserve the outer appearance of a couple of properties.
The latest I am timber cladding up to 1 m from the floor forming a void behind the boarding for central heating pipes and electric cables,quite pleased with this idea