# REFERENCE
# MAIN:  https://davidyat.es/2016/09/08/gpu-passthrough/
# More for Mint:  https://forums.linuxmint.com/viewtopic.php?f=231&t=212692
# >> = Terminal commands : DON"T ADD


1.)
    # Set BIOS to use AMD(SVM/IOMMU/Virtualization) Intell(VT-d/AMD-Vi)


2.)
    >> sudo apt-get update && sudo apt-get upgrade
    >> sudo apt-get install qemu-kvm seabios qemu-utils hugepages bridge-utils ovmf virt-manager libvirt-bin

    # Check kvm is happy
    >> kvm-ok
    >> lsmod | grep kvm

    # Download Win10 or try Win7
    https://www.microsoft.com/en-gb/software-download/windows10ISO


    >> lspci | grep VGA
    >> lspci -nn | grep 02:00.  # Or the number associated with your desired card
         -- Take note of PCI IDs for later -- Example: (10de:...)


3.)
    # Upgrade the kernel to >=4.8
    >> cd /tmp; wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8/linux-headers-4.8.0-040800_4.8.0-040800.201610022031_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8/linux-headers-4.8.0-040800-generic_4.8.0-040800.201610022031_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8/linux-image-4.8.0-040800-generic_4.8.0-040800.201610022031_amd64.deb; sudo dpkg -i *.deb
    >> sudo update-grub

    REBOOT

    # uname -r to see if kernel is used.


4.)
    # Need to see an output -->> Maybe?
    >> find /sys/kernel/iommu_groups/ -type l


5.)
    # Set pcie-stub ids to the noted id from step 2
    >> sudo nano /etc/default/grub
         -- Insert:  GRUB_CMDLINE_LINUX_DEFAULT="pcie_acs_override=downstream amd_iommu=on pci-stub.ids=10de:1380,10de:0fbc modprobe.blacklist=nouveau"
    >> sudo nano /etc/initramfs-tools/modules
         -- Insert to end:  pci-stub
    >> sudo update-initramfs -u

6.)
    ----  Optional  ----
    # Set hugepages -- Should REALLY have A LOT of RAM.  >=16GB preferred.
    # amount_of_RAM / hugepagesize + small_buffer = vm.nr_hugepages
    #                     8192M / 2048k + 7.5% = 4300

    >> hugeadm --explain
    >> sudo nano /etc/default/qemu-kvm
        -- Insert:  KVM_HUGEPAGES=1
    >> sudo nano /etc/sysctl.conf
        -- Insert:  vm.nr_hugepages = 4300  # Edit number acordingly
    >> hugeadm --explain
        # Check if user in proper group and add :
    >> sudo nano /etc/sysctl.conf
        -- Insert:  kernel.shmmax = 9437184000  # Edit number acordingly to what hugeadm --explain says.

    ----  Optional  ----
    # Add user to hugepages group     usermod -a -G <groupname> username
    >> sudo usermod -a -G hugetlb_shm_group <username>


    REBOOT
12288

7.)
----  QEMU  ----
    >> virt-manager
        # Follow:  https://davidyat.es/2016/09/08/gpu-passthrough/

----  VirtualBox  ----
    Attach:  VBoxManage modifyvm "win7Light Clone" --pciattach 02:00.0
    Detach:  VBoxManage modifyvm "win7Light Clone" --pcidetach 02:00.0