VirtIO-IOMMU Comes To x86 With Linux 5.14

The VirtIO-IOMMU driver now works on x86/x86_64 hardware with the Linux 5.14 kernel. Added two years ago to the Linux kernel was the VirtIO-IOMMU driver (merged in Linux 5.3) with an original focus on AArch64 for hardware for paravirtual IOMMU after being worked on out-of-tree for years prior. Now with Linux 5.14 in 2021 the VirtIO-IOMMU code is adapted to work on x86 Intel/AMD hardware too.