Unleashing VFIO's Potential - Code Refactoring and New Frontiers in Device Virtualization

Explore the latest advancements in VFIO technology and device virtualization in this 25-minute conference talk from KVM Forum. Dive into the comprehensive code refactoring efforts that have transformed the vfio-pci driver, creating a core library that enables a new generation of variant drivers. Discover how these innovations unlock device-specific functionalities and expand VM capabilities. Learn about enhanced migration techniques using the new vfio migration interface, advanced BAR management through dedicated variant drivers, and direct device access via a new character device interface. Gain insights into how these developments are revolutionizing virtualized environments, offering unprecedented levels of performance and flexibility. Examine real-world examples from industry leaders like NVIDIA/Mellanox, Huawei/HiSilicon, and Intel, and understand the impact of cutting-edge technologies such as the userspace IOMMU interface, IOMMUFD. Presented by Alex Williamson, Senior Principal Software Engineer at Red Hat and maintainer of the VFIO subsystem in the Linux kernel, this talk provides a comprehensive overview of the exciting future of device virtualization.