Abstract: Methods, systems, and computer program products are included for deduplicating one or more memory pages. A method includes receiving a first key from a first application running on a computer system. The method also includes associating the first key with a first memory allocated to the first application and scanning a second memory for duplicate memory pages of the first memory. The second memory is associated with a second key and allocated to a second application running on the computer system. The method also includes in response to a determination that the first and second keys are the same and that a scanned memory page is a duplicate of a first memory page of the first memory, deduplicating the scanned memory page and the first memory page.

Abstract: A method and system for providing a guest with virtual media that can be read by the guest. A hypervisor hosted by a computer system presents a guest-to-host channel to a guest in the computer system. The hypervisor receives content from the guest via the guest-to-host channel, the content to be stored and managed by the hypervisor in a memory area associated with the guest in the computer system, the memory area not being directly accessible to the guest. The hypervisor then receives a request from the guest indicating that the guest is to perform at least one operation on the content, and provides the content for the guest to perform the at least one operation.