1. A method of facilitating processing within a computing environment supporting pageable guests, said method comprising: associating guest state information of a guest of the computing environment with a block of memory of the guest, the guest state information including resource usage information, said guest being a pageable guest executed by a virtual machine of the computing environment, said virtual machine being managed by a host coupled to the virtual machine; and maintaining the guest state information in one or more control blocks in memory of the host.