vfio device passthrough

The vfio device passthrough tag covers discussions about passing physical devices through to virtual machines using the VFIO (Virtual Function I/O) framework. Content includes security vulnerabilities affecting VFIO passthrough setups, such as CVE-2026-45894, an Intel VT-d IOMMU race condition that can corrupt translation states during PASID table entry teardown. This flaw is relevant to users running Linux hosts with VFIO passthrough, containerized accelerators, or mixed Windows-on-Linux lab environments. The tag also touches on low-level virtualization defects and platform security considerations for modern hardware.