Hello all, as performing some tests in my lab with PCI pass-through and not really understanding it. Here is what I have done so far: lspci -nn: 06:00.0 RAID bus controller [0104]: LSI Logic / Symbios Logic MegaRAID SAS 2108 [Liberator] [1000:0079] (rev 05) modprobe pci_stub echo "1000 0079" > /sys/bus/pci/drivers/pci-stub/new_id echo "0000:06:00.0" > /sys/bus/pci/devices/0000:00:1b.0/driver/unbind echo "0000:06:00.0" > /sys/bus/pci/drivers/pci-stub/bind I then create the new guest through virt-manager, add the PCI device, but when it tries to start the install it fails straight away. I have checked then IOMMU is enabled: dmesg | grep IOMMU [ 0.000000] Intel-IOMMU: enabled am running a Intel i7 4440k on a ASUS Z87-K Mobo with virtualization all enabled. Any help would appreciated as wish to test http://www.osnexus.com/storage-appliance-os/ under KVM with a RAID card directly associated to the guest. Thanks. -- 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