Linux Gaming System using PCI passthrough with KVM

[chicaomogi]

the output of script above

IOMMU Group 0 00:00.0 Host bridge [0600]: Intel Corporation 4th Gen Core Processor DRAM Controller [8086:0c00] (rev 06)
IOMMU Group 1 00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller [8086:0c01] (rev 06)
IOMMU Group 1 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM204 [GeForce GTX 970] [10de:13c2] (rev a1)
IOMMU Group 1 01:00.1 Audio device [0403]: NVIDIA Corporation GM204 High Definition Audio Controller [10de:0fbb] (rev a1)
IOMMU Group 2 00:14.0 USB controller [0c03]: Intel Corporation 9 Series Chipset Family USB xHCI Controller [8086:8cb1]
IOMMU Group 3 00:16.0 Communication controller [0780]: Intel Corporation 9 Series Chipset Family ME Interface #1 [8086:8cba]
IOMMU Group 4 00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I218-V [8086:15a1]
IOMMU Group 5 00:1a.0 USB controller [0c03]: Intel Corporation 9 Series Chipset Family USB EHCI Controller #2 [8086:8cad]
IOMMU Group 6 00:1b.0 Audio device [0403]: Intel Corporation 9 Series Chipset Family HD Audio Controller [8086:8ca0]
IOMMU Group 7 00:1c.0 PCI bridge [0604]: Intel Corporation 9 Series Chipset Family PCI Express Root Port 1 [8086:8c90] (rev d0)
IOMMU Group 8 00:1d.0 USB controller [0c03]: Intel Corporation 9 Series Chipset Family USB EHCI Controller #1 [8086:8ca6]
IOMMU Group 9 00:1f.0 ISA bridge [0601]: Intel Corporation 9 Series Chipset Family Z97 LPC Controller [8086:8cc4]
IOMMU Group 9 00:1f.2 SATA controller [0106]: Intel Corporation 9 Series Chipset Family SATA Controller [AHCI Mode] [8086:8c82]
IOMMU Group 9 00:1f.3 SMBus [0c05]: Intel Corporation 9 Series Chipset Family SMBus Controller [8086:8ca2]

I was trying to follow the tutorial of the link below

Play games in Windows on Linux! PCI passthrough quick guide

Hello all! I am Gray from GrayWolfTech. I make videos on Linux and other interesting technology. Wendell has given me permission to post my written guides here for my videos. This is great for two reasons: First it helps grow this community and second my videos reach a wider audience to share what I have learned. I look forward to posting all my guides and videos here, and I am more than happy to answer any questions about the guide you may have. – Onward! – Now it’s time for one of the coolest and more advanced capabilities of Linux. KVM, or kernel virtual machines. We are going to go through step by step, how to setup PCI pass-through to a Windows virtual machine on a Debian host to play games! Thanks to Redhat, KVM can run virtual machines with almost bare metal performance and supports a wide variety of other neat features. The one we are going to focus on in this video is of course, PCI pass-through. The process of allowing a virtual machine full access to a PCI express graphics card for gaming, CAD, or 3D rendering. With this neat capability, you can run Linux as your host OS, and then pass your GPU (or one of your GPUs if you have multiple) to a virtual machine to play games. Let’s go over the requirements for this project: First and most important, you should backup any data you have on your PC. If you know what you are doing then you will not lose anything, but accidentally selecting the wrong drive when installing can lead you to be very sad when you figure out the drive you wiped had all your really good porn on it. Second, this process will take time. For someone who is an experienced Linux user it should take about 20 minutes (not counting time to install Debian or recompile the kernel). For someone who is new it might take longer. Make sure you allow yourself an entire afternoon or a good chunk of 4-5 hours where you could potentially not have a working PC. Third, follow the instructions I lay out in the video. I will answer questions down belo…