DrownedFire's Nodefaults QEMU Script

#!/bin/bash

sudo ip tuntap add tap1 mode tap user $(whoami) # Create tap interface
sudo ip link set dev tap1 address 52:54:BE:EF:E3:A6
sudo ip link set tap1 up # Set tap up
sudo route add -host 192.168.1.110 tap1 # Create distinct host-only route for the VM address
sudo sysctl net.ipv4.conf.tap1.proxy_arp=1 # Enable tap ARP
sudo sysctl net.ipv4.conf.wlp4s0.proxy_arp=1 # Enable wlan ARP
sudo sysctl net.ipv4.ip_forward=1 # Enable IP Forwarding

# General
OPTS="-name 'Windows10-QEMU'"
OPTS="$OPTS -machine type=q35,accel=kvm"
OPTS="$OPTS -global ICH9-LPC.disable_s3=1" # Disable S3 from Q35 chipset
OPTS="$OPTS -global ICH9-LPC.disable_s4=1" # Disable S4 from Q35 chipset
#OPTS="$OPTS -global kvm-pit.lost_tick_policy=discard" # ?

# CPU
OPTS="$OPTS -cpu host,kvm=off,hv_relaxed,hv_spinlocks=0x1fff,hv_time,hv_vendor_id=5DIE45JG7EAY" # Trick Nvidia with kvm=off, Enable Hyper-V enlightenments, Mask with hv_vendor_id. Avoid hv_vapic for Haswell (causes overhead)
OPTS="$OPTS -smp sockets=1,cores=4,threads=2"

# OVMF
OPTS="$OPTS -drive file=OvmfX64/DEBUG_GCC5/FV/OVMF_CODE.fd,if=pflash,format=raw,readonly=on"
OPTS="$OPTS -drive file=WIN10_VARS.fd,if=pflash,format=raw"

# Boot
OPTS="$OPTS -boot menu=on"
OPTS="$OPTS -boot order=c"

# Memory
OPTS="$OPTS -m 8G"
#OPTS="$OPTS -mem-path /dev/hugepages/libvirt/qemu"
OPTS="$OPTS -mem-prealloc"

# Misc
OPTS="$OPTS -balloon none" # Disable decrease/increase memory size via ballooning
OPTS="$OPTS -rtc clock=host,base=localtime" # Local time required for Windows
OPTS="$OPTS -nodefaults" # No default devices
OPTS="$OPTS -nographic" # Disable graphical output, use command line
OPTS="$OPTS -vga none" # Emulated video device
OPTS="$OPTS -parallel none" # Disable parallel ports
OPTS="$OPTS -serial none" # Disable serial ports
OPTS="$OPTS -k en-us" # Use EN-US as keyboard layout
OPTS="$OPTS -enable-kvm"

# VNC
#OPTS="$OPTS -vnc 127.0.0.1:1" # Listen to VNC display

# Spice
OPTS="$OPTS -spice port=5930,disable-ticketing"
OPTS="$OPTS -device virtio-serial-pci,addr=0b.0"
OPTS="$OPTS -device virtserialport,chardev=spicechannel0,name=com.redhat.spice.0"
OPTS="$OPTS -chardev spicevmc,id=spicechannel0,name=vdagent"

# Use Spice QXL GPU (primary, vga compatible) for display device, on root bus
#OPTS="$OPTS -device qxl-vga,bus=pcie.0,addr=02.0,id=video-0"
OPTS="$OPTS -device qxl-vga,ram_size=134217728,vram_size=134217728,vram64_size_mb=0,vgamem_mb=128,max_outputs=1,bus=pcie.0,addr=02.0,id=video-0"

# Root Port 1
OPTS="$OPTS -device ioh3420,bus=pcie.0,addr=01.0,multifunction=on,chassis=1,id=root.1"
OPTS="$OPTS -device vfio-pci,host=01:00.0,bus=root.1,addr=00.0,x-pci-sub-device-id=6237,x-pci-sub-vendor-id=4163,multifunction=on,rombar=0,id=host-device-0"

# Root Port 2
OPTS="$OPTS -device ioh3420,bus=pcie.0,addr=09.0,chassis=2,id=root.2"
OPTS="$OPTS -device virtio-scsi-pci,bus=root.2,addr=00.0,id=virtio-pci-scsi-0"
OPTS="$OPTS -drive file=WindowsVM.img,format=raw,if=none,id=virtio-scsi-disk-0,cache=none,aio=native"
OPTS="$OPTS -device scsi-hd,drive=virtio-scsi-disk-0"

# Root Port 3
OPTS="$OPTS -device ioh3420,bus=pcie.0,addr=03.0,chassis=3,id=root.3"
OPTS="$OPTS -device ich9-ahci,bus=root.3,addr=00.0,id=ich9-ahci-0"
OPTS="$OPTS -drive file=/home/fire/vfio/windows10.iso,format=raw,index=1,if=none,media=cdrom,readonly=on,id=sata-cd-0"
OPTS="$OPTS -device ide-cd,bus=ich9-ahci-0.0,drive=sata-cd-0"
OPTS="$OPTS -drive file=virtio-win-0.1.149.iso,index=2,if=none,media=cdrom,id=sata-cd-1"
OPTS="$OPTS -device ide-cd,bus=ich9-ahci-0.1,drive=sata-cd-1"

# Root Port 4
#OPTS="$OPTS -device ioh3420,bus=pcie.0,addr=04.0,chassis=4,id=root.4"
#OPTS="$OPTS -device nec-usb-xhci,bus=root.4,addr=00.0,id=nec-usb-xhci-0"
#OPTS="$OPTS -device usb-host,bus=nec-usb-xhci-0.0,hostbus=2,hostaddr=11"

# Root Port 5
#OPTS="$OPTS -device ioh3420,bus=pcie.0,addr=05.0,chassis=5,id=root.5"
#OPTS="$OPTS -device ich9-intel-hda,bus=root.5,addr=00.0,id=intel-hda-0"
#OPTS="$OPTS -device hda-duplex,bus=intel-hda-0.0,cad=0"

# Root Port 6
#OPTS="$OPTS -device ioh3420,bus=pcie.0,addr=06.0,chassis=6,id=root.6"
#OPTS="$OPTS -netdev user,hostfwd=udp::2046-10.0.2.15:2046,id=host-network-0"
#OPTS="$OPTS -device virtio-net-pci,netdev=host-network-0,mac=46:21:83:0D:59:3F,bus=root.6,addr=00.0"

# Root Port 7
OPTS="$OPTS -device ioh3420,bus=pcie.0,addr=07.0,chassis=7,id=root.7"
#OPTS="$OPTS -netdev tap,ifname=tap0,script=tap_ifup,downscript=tap_ifdown,vhost=on,id=host-network-1"
OPTS="$OPTS -netdev tap,ifname=tap1,script=no,downscript=no,vhost=on,id=host-network-1"
OPTS="$OPTS -device virtio-net-pci,netdev=host-network-1,mac=52:54:BE:EF:4B:F1,bus=root.7,addr=00.0"

# Root Port 8
#OPTS="$OPTS -device ioh3420,bus=pcie.0,addr=08.0,chassis=8,id=root.8"
#OPTS="$OPTS -device virtio-balloon-pci,bus=root.8,addr=00.0,id=virtio-balloon-pci-0"

# Looking Glass
#OPTS="$OPTS -object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32M"
#OPTS="$OPTS -device ivshmem-plain,memdev=ivshmem,addr=0c.0"

# Commandline
OPTS="$OPTS -chardev stdio,mux=on,id=monitor-0" # Character device with standard I/O backend and multiplexing mode on [Backend]
OPTS="$OPTS -mon chardev=monitor-0" # Monitor character device [Frontend]

sudo qemu-system-x86_64 $OPTS

sudo sysctl net.ipv4.ip_forward=0 # Disable IP Forwarding
sudo sysctl net.ipv4.conf.wlp4s0.proxy_arp=0 # Disable wlan ARP
sudo sysctl net.ipv4.conf.tap1.proxy_arp=0 # Disable tap ARP
sudo ip link set tap1 down # Set tap down
sudo route -n
sudo ip link del tap1 # Delete tap interface