US cereal maker General Mills Inc. has entered talks with Swiss food giant Nestle SA on the future of Haagen-Dazs ice cream, a joint venture between Pillsbury Co. and Nestle, the Daily Deal reported today. The agreement governing the joint venture gives Nestle the option to buy out Haagen-Dazs at a price specified in the pact when Pillsbury comes under new ownership, according to bankers and analysts. The condition was filled in July, when General Mills concluded a deal to take over Pillsbury from its British parent Diageo plc.