PCIe Virtualization Stack Overview

Virtualization is used for improving server utilization, that is, by putting more software workloads onto a physical server to use up spare capacity. These software workloads are virtual machines running on top of a hypervisor like a kernel virtual machine or VMware. Virtualization reduces power consumption and costs and is a perfect fit for multi-core processors (MCPs) which often run one virtual machine (VM) per core.