This will be for Debian Stretch

==GUIDE ON HOW TO RUN GNU/LINUX AND GET VIDYA AT THE SAME TIME==

Requirements: Two Monitors, Keyboard, Two Mice, Motherboard with VT-D support, i7 with VT-D/AMD Equivalent before Ryzen (i5 maybe but it will kind of be shit & Ryzen is not there yet but you can try), Integrated Graphics + GPU or Two GPU's, Windows ISO, Synergy, and Autism.

I know Windows 10 works but Windows 7 works but its more of a pain. The only bug I have found is that I have to restart my machine and then switch to ich6 audio before then switching it back to ich9 once the machine starts and then stops.


>Go to BIOS and Check if VT-d is enabled

>Install GNU/Linux
https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-9.2.0-amd64-netinst.iso
https://rufus.akeo.ie/

>Open a terminal and enter sudo nano /etc/default/grub then hit enter

> Add intel_iommu=on or amd_iommu=on at the end of GRUB_CMDLINE_LINUX_DEFAULT, make sure the " is at the end

> Save with CTRL X and Y then put sudo update-grub then hit enter

>Restart PC

>Open terminal back up and type in lspci -nn then hit enter

>Find your GPU Address (Examples:  01:00.0 and 01:00.1)

>Write down the numbers at the end for later (Example:10de:13c0 and 10de:0fbb)

>Type in  find /sys/kernel/iommu_groups/ -type l then hit enter. If you see other devices have that 01 number, if so you need ACS patch

==IF YOU NEED THE ACS PATCH PAY ATTENTION==

>Go into terminal and type in sudo apt-get install linux-source libqt4-dev build-essential libssl-dev then hit enter

>Go to https://aur.archlinux.org/cgit/aur.git/tree/?h=linux-vfio right click add-acs-overrides.patch and save it

>open your file manager and go to /usr/src/linux-source.tar.xz

>copy and paste that into your downloads folder

>rename the patch file in your folder acs-patch

>In Terminal type cd Downloads hit enter

> Type in cd linux-source then hit enter

> Type in patch -p1 <

> Go to your file manager and drag the acs-patch.patch file into your terminal

> Hit enter

> type in make xconfig

>A window will pop up, hit ctrl f and type in version

>click local version and it should allow you to type below, enter -acs-patch then hit enter

>hit the floppy drive at the top right to save

> type in make -j4 deb-pkg then hit enter

>if you get an error edit the config file with nano .config

>In that file hit CTRL W and look for CONFIG_SYSTEM_TRUSTED_KEYS and add a # to the front of it before running the -j4 deb-pkg again

>It will take some time but when its done there will be just a blank terminal go into your Downloads and delete everything except for linux-headers and linux-image, not the debug one.

>Rename them linux-image.deb and linux-headers.deb

>go into terminal and type in cd ~ then cd Downloads

>type in sudo dpkg -i linux-image.deb linux-headers.deb

>once that finishes type sudo apt-get install virt-manager ovmf

>Edit grub again with sudo nano /etc/default/grub then where you put the intel/amd thing

>You type in vfio-pci.ids="numbers" and take those numbers (Example:10de:13c0 and 10de:0fbb) and put them like this (Example: intel_iommu=on vfio-pci.ids=10de:13c0,10de:0fbb)

>If you are using the ACS patch you add pcie_acs_override=downstream after the numbers before saving it with CTRL X and Y once again

>Go into terminal and type in sudo nano /etc/modules

> Add
vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

then save

>Reboot your machine

>Open terminal and type lspci -k you should see your GPU with vfio_pci driver in use

>Download these drivers for your VM but keep them as an iso https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/latest-virtio/virtio-win.iso

>Open virt manager and go to connection details then go to Virtual Networks

>Make sure that On Boot is checked before Applying and exiting out

>Go to the monitor with the play icon and create a new machine with your Windows ISO, make sure to give it at least 8 Gigs of RAM

>When it shows the last screen you need to check Customize config before install

> In Overview change Firmware to UEFI and Chipset to Q35

>CPU page under config type in host-passthrough and under topology manually set it so its Socket: 1 Threads: 2 Cores: Use all except for the last (Example i7 with 4 cores and hyperthreading gets 3 so 1 core to Linux)

>Memory is 8 or More

>Boot Menu is enabled

>Find where your the .qcow2 source path disk is and make sure in the advanded options its VirtIO and its performance is set to writeback

>Under your Windows ISO you need to make it a SATA CDROM

>NIC device model needs to be changed to VirtIO

>Sound varies but for Windows 10 I use ich9.

>Remove the Display Spice, Console, Video QXL, and Channel Spice

>Add Hardware and select your downloads folder where the virtio drivers are, make sure its a SATA Disk.

>Under boot menu make sure that the Windows ISO is check marked

>Add Hardware and select your graphics card stuff under the PCI menu.

>After the machine starts and you see a logo on the monitor that is hooked to the card turn the virtual machine off

>Type in sudo virsh edit [machine name]

>Change first line from <domain type='kvm'> to <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>

>In <hyperv> you need to add <vendor_id state='on' value='whatever'/> in the middle

>If you want to use one pair of headphones and put

 <qemu:commandline>
        <qemu:env name='QEMU_AUDIO_DRV' value='pa'/>
        <qemu:env name='QEMU_PA_SERVER' value='/run/user/1000/pulse/native'/>
      </qemu:commandline>

 inbetween </devices> and </domain>

>Go into terminal and type sudo nano /etc/libvirt/qemu.conf then make #user = " " to user ="(your username on machine)"

>Go back to your virtual machine, once your mouse gets passed through its done unless the machine is turned off so you need to make sure you dont passthrough both mice.

>If you want to add the second mouse double click until you see the screen that shows what your machine has and select add hardware then USB devices then the mouse/keyboard you want.

>Start the machine with the green play button

>In the windows install it wont find your drive so you have to browse the virtio disk to find virtstor and select your OS then windows should install fine

>Once windows is installed fully you want to make sure the virtio disk is the one checked and not the windows disk.

>In the Windows you need to install the network in the same method as the storage

>Install Nvidia/AMD GPU Drivers

>Go to Windows Devices and there is an unlisted PCI device which is the Ballon driver

>Install synergy software on both machines so you can share the same keyboard (Mice is shit with vidya which is why you gotta have a second to swap)

>Download this http://ftp.us.debian.org/debian/pool/main/o/openssl/libssl1.0.0_1.0.1t-1+deb8u6_amd64.deb and  sudo dpkg -i to get synergy to work properly on debian

and it should work if you restart the program

>In thoery if you did this right you will have 1 keyboard and two mice that work across both machines along with native GPU performance.

If you have any issues refer to these two links which includes an older but more clean version of what I said and a video.

https://forum.level1techs.com/t/play-games-in-windows-on-linux-pci-passthrough-quick-guide/108981