What is the AMD IOMMU Device Windows Driver?

The AMD IOMMU (Input-Output Memory Management Unit) is a hardware feature commonly found in AMD processors (especially AMD Ryzen and AMD EPYC series), which allows for efficient memory management between devices connected to the system, such as storage controllers, GPUs, or other peripherals. IOMMU provides virtual memory addressing, allowing the system to control memory access and isolate devices from one another. It can enhance performance, security, and system stability, especially when using features like virtualization (e.g., running virtual machines).

In the context of Windows, the AMD IOMMU DeviceSR-IOV (Single Root I/O Virtualization) or virtualization passthrough.