qemu example script #cli #qemu

qemu_example.sh

#!/bin/bash

configfile=/etc/vfio-pci0.cfg

vfiobind() {
    dev="$1"
        vendor=$(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

}

modprobe vfio-pci

cat $configfile | while read line;do
    echo $line | grep ^# >/dev/null 2>&1 && continue
        vfiobind $line
done

# ,romfile=XFX.HD7950.3072.121021.rom

sudo qemu-system-x86_64 -enable-kvm -M q35 -m 2048 -cpu host -smp 4,sockets=1,cores=2,threads=1 \
-bios /usr/share/qemu/bios.bin -vga none \
-device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
-device piix4-ide,bus=pcie.0,id=piix4-ide \
-device vfio-pci,host=02:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \
-drive file=/home/bender/win_tiny7.img,id=disk,format=raw -device ide-hd,bus=ide.0,drive=disk \
-boot menu=on

exit 0