GPU passthrough with libvirt qemu kvm

Description

Hardware

Preparations ACS patch IOMMU

Software installation

Libvirt configuration

Windows guest configuration
 * Workaround for AMD graphic card (turn on/off amd vcard)

See also: https://forum.level1techs.com/t/linux-host-windows-guest-gpu-passthrough-reinitialization-fix/121097?source_topic_id=121737