Linux Shell Script to Start Windows 10 Virtual Machine with GPU Passthrough (QEMU/KVM) (22 Mar 2020)

#!/bin/bash

# Mr. Turritopsis Dohrnii Teo En Ming
# Singapore
# 21 Mar 2020 Saturday

# Haven't configure bridged networking yet. TO-DO in future.

vmname="windows10vm"

if ps -ef | grep qemu-system-x86_64 | grep -q multifunction=on; then
echo "A passthrough VM is already running." &
exit 1

else

# use pulseaudio
export QEMU_AUDIO_DRV=pa
export QEMU_PA_SAMPLES=8192
export QEMU_AUDIO_TIMER_PERIOD=99
export QEMU_PA_SERVER=/run/user/1000/pulse/native

cp /usr/share/OVMF/OVMF_VARS.fd /tmp/my_vars.fd

# /data is Toshiba 1 TB 3.5 inch internal SATA harddisk

qemu-system-x86_64 \
-name $vmname,process=$vmname \
-machine type=pc,accel=kvm \
-cpu host,kvm=off \
-smp 3,sockets=1,cores=3,threads=1 \
-m 16G \
-balloon none \
-rtc clock=host,base=localtime \
-serial none \
-parallel none \
-soundhw hda \
-usb \
-device usb-host,vendorid=0x0603,productid=0x00f2 \
-device usb-host,vendorid=0x056e,productid=0x0134 \
-device vfio-pci,host=01:00.0,multifunction=on \
-device vfio-pci,host=01:00.1 \
-drive if=pflash,format=raw,readonly,file=/usr/share/OVMF/OVMF_CODE.fd \
-drive if=pflash,format=raw,file=/tmp/my_vars.fd \
-boot order=dc \
-drive id=disk0,if=virtio,cache=none,format=raw,file=/home/teo-en-ming/win10.img \
-drive id=disk1,if=virtio,cache=none,format=raw,file=/data/toshiba.img \
-drive file=/home/teo-en-ming/win10-1709.iso,index=1,media=cdrom \
-drive file=/home/teo-en-ming/Downloads/virtio-win-0.1.173.iso,index=2,media=cdrom \
-vga none \
-nographic
#-netdev type=tap,id=net0,ifname=vmtap0,vhost=on \
#-device virtio-net-pci,netdev=net0,mac=00:16:3e:00:01:01

exit 0
fi