Shared memory inter-process communication of virtual machines using virtual synchrony

摘要

A mechanism for virtual synchrony total order messaging for virtual machines is disclosed. A method of embodiments of the invention includes receiving a request to reserve a block of memory in a shared memory segment, reserving the block of memory, and providing a start address of the reserved block of memory to a virtual machine (VM) that sent the request in order for the VM to copy a message from an application of the VM into the reserved block of memory, wherein the application communicates with other applications on other VMs using virtual synchrony. The method may further include sending a new message available request to all of the other VMs, wherein the new message available request includes the start address of the reserved block of memory and a length of the message, and tracking the VMs that access the reserved block of memory.