I was able to passthrough a Radeon HD 7750 (Club 3D HD 7750 1GB) video card to a KVM domain running Windows 7. The host is running stock Ubuntu 12.10. I blacklisted the radeon driver in the host system and added intel_iommu=on to the boot parameters. Then I added the devices (VGA and Audio) to the domain definition: http://pastie.org/6109018 The performance is almost as good as with a native installation. However, when I reboot the Windows 7 domain, it crashes to host (!) system. I can see some error message in the kern.log seconds before the system reboots: http://pastie.org/6109012 According to `virsh nodedev-list --tree` pcieport 0000:00:03.0 seems to be "PCI Express Root Port 3" and is the parent of my video card. Any ideas on how to fix this? -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html