launch-vm.sh

#!/usr/bin/env bash
# shellcheck disable=SC2054

# Tweakable options, comment to unset.

# Passthrough the GPU (hardware) via PCI Passthrough (OVMF)
EnableGPUPassthrough=

# Whether or not add a sound device, connect to the system
# EnableSystemSound=

# Add vGPU (virtio)
# EnableEmulatedGPU=

# Evdev Keyboard & mouse
EnableEvdevInputs=


# [ The Machine ]
cmd=(
    qemu-system-x86_64
    # For PCIe.
    -machine q35
    -accel kvm

    # Windows guest, Enabling Hyper-V enlightenments with KVM
    # https://blog.wikichoon.com/2014/07/enabling-hyper-v-enlightenments-with-kvm.html
    -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time
    # https://forum.level1techs.com/t/need-help-stop-qemu-from-crashing-when-looking-glass-ivshmem-plain-is-enabled/191836/3
    # -cpu Skylake-Client-v4
    -rtc base=localtime,clock=host
    -smp 16
    -m 32768

    -serial none

    # UEFI machine
    -drive "if=pflash,format=raw,readonly=on,file=/home/lyc/VM/share/OVMF/OVMF_CODE.fd"
    -drive "if=pflash,format=raw,file=./OVMF_VARS.fd"
)

# [ Sound Card ]
if [ ! -z ${EnableSystemSound+x} ]; then
    cmd+=(

        -audiodev pa,id=snd0
        -device ich9-intel-hda
        -device hda-output,audiodev=snd0
    )
fi


# [ Display ]
if [ ! -z ${EnableEmulatedGPU+x} ]; then
    cmd+=(
        # -vnc :5
        # -vga qxl
        -spice port=5905,disable-ticketing=on
        -device "virtio-vga-gl"
        -display "sdl,gl=on"
    )
else
    cmd+=(
        -nographic
        -vga none
    )
fi

if [ ! -z "${EnableGPUPassthrough+x}" ]; then
    cmd+=(
        # VGA compatible controller: NVIDIA Corporation AD102 [GeForce RTX 4090] (rev a1)
        -device vfio-pci,host=01:00.0,x-vga=on
        # Audio device: NVIDIA Corporation AD102 High Definition Audio Controller (rev a1)
        -device vfio-pci,host=01:00.1

        # VGA compatible controller [0300]: NVIDIA Corporation TU106 [GeForce RTX 2060 SUPER] [10de:1f06] (rev a1)
        # -device vfio-pci,host=01:00.0,x-vga=on
        # Audio device [0403]: NVIDIA Corporation TU106 High Definition Audio Controller [10de:10f9] (rev a1)
        # -device vfio-pci,host=01:00.1
        # USB controller [0c03]: NVIDIA Corporation TU106 USB 3.1 Host Controller [10de:1ada] (rev a1)
        # -device vfio-pci,host=01:00.2
        # Serial bus controller [0c80]: NVIDIA Corporation TU106 USB Type-C UCSI Controller [10de:1adb] (rev a1)
        # -device vfio-pci,host=01:00.3
    )
fi

# [ Input Devices ]
if [ ! -z ${EnableEvdevInputs+x} ]; then
    cmd+=(
        # A4Tech Co., Ltd. USB Mouse
        # -device usb-host,bus=xhci.0,vendorid=0x09da,productid=0xc10a
        -object "input-linux,id=mouse1,evdev=/dev/input/by-id/usb-A4Tech_USB_Mouse-event-mouse"

        # STMicroelectronics 108EC-XRGB
        # -device usb-host,bus=xhci.0,vendorid=0x0483,productid=0x5130
        -object "input-linux,id=kbd1,evdev=/dev/input/by-id/usb-Milsky_108EC-XRGB_CA2018120001-event-kbd,grab_all=on,repeat=on"
    )
fi

# [ USB ]
cmd+=(
    -device qemu-xhci,id=xhci

    # Logitech, Inc. Webcam C310
    -device usb-host,bus=xhci.0,vendorid=0x046d,productid=0x081b
)

# [ Network ]
cmd+=(
    # -device virtio-net,netdev=network0
    # -netdev tap,id=network0,ifname=vmelaratap0,script=no,downscript=no
)

# [ Storage ]
cmd+=(
    -drive file="$1"
    # -snapshot
)

# [ Monitor]
cmd+=(
    -monitor unix:./monitor.sock,server,nowait
)

exec "${cmd[@]}"