Abstract: An apparatus and method for providing support for execution of optimized code. The apparatus includes a processor that is configured to convert guest code to native code and monitor access to an indicated memory address range associated with a read-only portion of the memory and to detect access to the indicated memory address range. The processor is further configured to raise an exception in response to memory access to the indicated memory address range and determine an access property of the indicated memory address range.

Abstract: A client transitions between a suspended virtual machine (VM) state and an active VM state by employing a working set comprising a VM state file and a working set index file. The VM state file serializes each of the VM components that is saved to storage. The working set index file contains indirect information that records the offset, length, and region of various pieces of the VM state and contains a VM working set. The VM suspend state serialization is implemented as either a monolithic or an incremental process.