Links und Skripte vom Video: Tutorial: SteamOS in einer KVM betreiben und die physikalische Grafikkarte nutzen.

Hier das Tutorial zur Vorbereitung:

Dieses sind meine eingesetzten Hardwarekomponenten:
Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz socket 1150
GA-Z97X-UD3H-BK 
16GB DDR3 Memory
512GB SSD
NVIDIA GeForce GTX 780 (ASUS GTX780-DC2OC-3GD5) zum durch reichen

Download des SteamOS:
http://store.steampowered.com/steamos/download/?ver=custom

Zum erstellen der ISO datei aus der ZIP Datei:
genisoimage -U -A "Steamos" -V "SteamOS" -volset "SteamOS" -J -joliet-long -r -v -T -o SteamOSInstaller.iso --eltorito-boot boot/grub/efi.img -no-emul-boot ./SteamOSInstaller


Skript Dateien:

kvm-install-steamos.sh
Bite Die Zeilen DEVICE1="01:00.0" und DEVICE2="01:00.1" prüfen, ob diese zur durchzureichenden Grafikkarte passt.
--------------------------------------------------- anfang ------------------------------------------- 
#!/bin/sh

INSTALLFILE=steamos-uefi-x64_system.qcow2
FILESIZE=100G

INSTALLCD=/home/user/Downloads/SteamOSInstaller.iso
# if you use a hardware CD-ROM drive, check for the device. In most cases it's /dev/sr0
#INSTALLCD=/dev/sr0

# PCI address of the passtrough devices
DEVICE1="01:00.0"
DEVICE2="01:00.1"

# load vfio-pci module
modprobe vfio-pci

for dev in "0000:$DEVICE1" "0000:$DEVICE2"; do
        vendor=$(cat /sys/bus/pci/devices/$dev/vendor)
        device=$(cat /sys/bus/pci/devices/$dev/device)
        if [ -e /sys/bus/pci/devices/$dev/driver ]; then
                echo $dev > /sys/bus/pci/devices/$dev/driver/unbind
        fi
        echo $vendor $device > /sys/bus/pci/drivers/vfio-pci/new_id
done

# create installation file if not exist
if [ ! -e $INSTALLFILE ]; then 
qemu-img create -f qcow2 $INSTALLFILE $FILESIZE
fi

QEMU_PA_SAMPLES=4096 QEMU_AUDIO_DRV=pa \
qemu-system-x86_64 \
-enable-kvm \
-m 4096 \
-cpu host,kvm=off \
-smp 2,sockets=1,cores=2,threads=1 \
-machine pc-i440fx-2.1,accel=kvm \
-soundhw hda \
-bios /usr/share/ovmf/OVMF.fd \
-device vfio-pci,host=$DEVICE1,addr=0x8.0x0,multifunction=on,x-vga=on \
-device vfio-pci,host=$DEVICE2,addr=0x8.0x1 \
-vga none \
-device qxl \
-device virtio-net-pci,netdev=user.0,mac=52:54:00:a0:66:43 \
-netdev user,id=user.0 \
-drive file=$INSTALLFILE,if=none,id=drive-virtio-disk0,format=qcow2,cache=unsafe \
-device virtio-blk-pci,scsi=off,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=2 \
-drive file=$INSTALLCD,if=none,id=drive-ide0-0-0,readonly=on,format=raw \
-device ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
-rtc base=localtime,driftfix=slew \
-smb /home/user/Downloads/toinstall \
-usb \
-device usb-mouse \

-device usb-kbd

--------------------------------------------------- ende ------------------------------------------- 

kvm-start-steamos.sh
--------------------------------------------------- anfang -------------------------------------------

#!/bin/bash

INSTALLFILE=steamos-uefi-x64_system.qcow2

IMAGEFILE=steamos-uefi-x64_system-01.qcow2

#FILESIZE=50G

# PCI address of the passtrough devices

DEVICE1="01:00.0"

DEVICE2="01:00.1"

# load vfio-pci module

modprobe vfio-pci

for dev in "0000:$DEVICE1" "0000:$DEVICE2"; do

        vendor=$(cat /sys/bus/pci/devices/${dev}/vendor)

        device=$(cat /sys/bus/pci/devices/${dev}/device)

        if [ -e /sys/bus/pci/devices/${dev}/driver ]; then

                echo ${dev} > /sys/bus/pci/devices/${dev}/driver/unbind

        fi

        echo $vendor $device > /sys/bus/pci/drivers/vfio-pci/new_id

done

# create a imagefile from backingfile file if not exist

if [ ! -e $IMAGEFILE ]; then

qemu-img create -f qcow2 -o backing_file=$INSTALLFILE,backing_fmt=qcow2 $IMAGEFILE

fi

QEMU_PA_SAMPLES=4096 QEMU_AUDIO_DRV=pa \

taskset -c 0-1 \

qemu-system-x86_64 \

-enable-kvm \

-m 4096 \

-cpu host,kvm=off \

-smp 2,sockets=1,cores=2,threads=1 \

-machine pc-i440fx-2.1,accel=kvm \

-soundhw hda \

-bios /usr/share/ovmf/OVMF.fd `# SID version of OVMF` \

-device vfio-pci,host=$DEVICE1,addr=0x8.0x0,multifunction=on,x-vga=on \

-device vfio-pci,host=$DEVICE2,addr=0x8.0x1 \

-vga none \

-device qxl \

-device virtio-net-pci,netdev=user.0,mac=52:54:00:a0:66:43 \

-netdev user,id=user.0 \

-drive file=$IMAGEFILE,if=none,id=drive-virtio-disk0,format=qcow2,cache=none \

-device virtio-blk-pci,scsi=off,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \

-rtc base=localtime,driftfix=slew \

-smb /home/user/Downloads/toinstall \

-usb \

-device usb-mouse \

-device usb-kbd

--------------------------------------------------- ende -------------------------------------------