1. A method of facilitating data transfer in a pageable mode virtual environment, said method comprising: obtaining by a processor of the pageable mode virtual environment an indication of a buffer to be used in data transfer, the buffer being associated with a guest program operating in a pageable mode virtual machine of the pageable mode virtual environment; and performing by the processor processing associated with the buffer to enable data transfer, said performing being absent intervention of a host of the pageable mode virtual environment.