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+# q35 - VirtIO guest (graphical console)
+# =========================================================
+#
+# Usage:
+#
+#   $ qemu-system-x86_64 \
+#     -nodefaults \
+#     -readconfig q35-virtio-graphical.cfg
+#
+# You will probably need to tweak the lines marked as
+# CHANGE ME before being able to use this configuration!
+#
+# The guest will have a selection of VirtIO devices
+# tailored towards optimal performance with modern guests,
+# and will be accessed through a graphical console.
+#
+# ---------------------------------------------------------
+#
+# Using -nodefaults is required to have full control over
+# the virtual hardware: when it's specified, QEMU will
+# populate the board with only the builtin peripherals
+# plus a small selection of core PCI devices and
+# controllers; the user will then have to explicitly add
+# further devices.
+#
+# The core PCI devices show up in the guest as:
+#
+#   00:00.0 Host bridge
+#   00:1f.0 ISA bridge / LPC
+#   00:1f.2 SATA (AHCI) controller
+#   00:1f.3 SMBus controller
+#
+# This configuration file adds a number of other useful
+# devices, more specifically:
+#
+#   00:01.0 VGA compatible controller
+#   00:1b.0 Audio device
+#   00.1c.* PCI bridge (PCI Express Root Ports)
+#   01:00.0 SCSI storage controller
+#   02:00.0 Ethernet controller
+#   03:00.0 USB controller
+#
+# More information about these devices is available below.
+
+
+# Machine options
+# =========================================================
+#
+# We use the q35 machine type and enable KVM acceleration
+# for better performance.
+#
+# Using less than 1 GiB of memory is probably not going to
+# yield good performance in the guest, and might even lead
+# to obscure boot issues in some cases.
+
+[machine]
+  type = "q35"
+  accel = "kvm"
+
+[memory]
+  size = "1024"
+
+
+# PCI bridge (PCI Express Root Ports)
+# =========================================================
+#
+# We create eight PCI Express Root Ports, and we plug them
+# all into separate functions of the same slot. Some of
+# them will be used by devices, the rest will remain
+# available for hotplug.
+
+[device "pcie.1"]
+  driver = "pcie-root-port"
+  bus = "pcie.0"
+  addr = "1c.0"
+  port = "1"
+  chassis = "1"
+  multifunction = "on"
+
+[device "pcie.2"]
+  driver = "pcie-root-port"
+  bus = "pcie.0"
+  addr = "1c.1"
+  port = "2"
+  chassis = "2"
+
+[device "pcie.3"]
+  driver = "pcie-root-port"
+  bus = "pcie.0"
+  addr = "1c.2"
+  port = "3"
+  chassis = "3"
+
+[device "pcie.4"]
+  driver = "pcie-root-port"
+  bus = "pcie.0"
+  addr = "1c.3"
+  port = "4"
+  chassis = "4"
+
+[device "pcie.5"]
+  driver = "pcie-root-port"
+  bus = "pcie.0"
+  addr = "1c.4"
+  port = "5"
+  chassis = "5"
+
+[device "pcie.6"]
+  driver = "pcie-root-port"
+  bus = "pcie.0"
+  addr = "1c.5"
+  port = "6"
+  chassis = "6"
+
+[device "pcie.7"]
+  driver = "pcie-root-port"
+  bus = "pcie.0"
+  addr = "1c.6"
+  port = "7"
+  chassis = "7"
+
+[device "pcie.8"]
+  driver = "pcie-root-port"
+  bus = "pcie.0"
+  addr = "1c.7"
+  port = "8"
+  chassis = "8"
+
+
+# SCSI storage controller (and storage)
+# =========================================================
+#
+# We use virtio-scsi here so that we can (hot)plug a large
+# number of disks without running into issues; a SCSI disk,
+# backed by a qcow2 disk image on the host's filesystem, is
+# attached to it.
+#
+# We also create an optical disk, mostly for installation
+# purposes: once the guest OS has been succesfully
+# installed, the guest will no longer boot from optical
+# media. If you don't want, or no longer want, to have an
+# optical disk in the guest you can safely comment out
+# all relevant sections below.
+
+[device "scsi"]
+  driver = "virtio-scsi-pci"
+  bus = "pcie.1"
+  addr = "00.0"
+
+[device "scsi-disk"]
+  driver = "scsi-hd"
+  bus = "scsi.0"
+  drive = "disk"
+  bootindex = "1"
+
+[drive "disk"]
+  file = "guest.qcow2"                          # CHANGE ME
+  format = "qcow2"
+  if = "none"
+
+[device "scsi-optical-disk"]
+  driver = "scsi-cd"
+  bus = "scsi.0"
+  drive = "optical-disk"
+  bootindex = "2"
+
+[drive "optical-disk"]
+  file = "install.iso"                          # CHANGE ME
+  format = "raw"
+  if = "none"
+
+
+# Ethernet controller
+# =========================================================
+#
+# We use virtio-net for improved performance over emulated
+# hardware; on the host side, we take advantage of user
+# networking so that the QEMU process doesn't require any
+# additional privileges.
+
+[netdev "hostnet"]
+  type = "user"
+
+[device "net"]
+  driver = "virtio-net-pci"
+  netdev = "hostnet"
+  bus = "pcie.2"
+  addr = "00.0"
+
+
+# USB controller (and input devices)
+# =========================================================
+#
+# We add a virtualization-friendly USB 3.0 controller and
+# a USB tablet so that graphical guests can be controlled
+# appropriately. A USB keyboard is not needed, as q35
+# guests get a PS/2 one added automatically.
+
+[device "usb"]
+  driver = "nec-usb-xhci"
+  bus = "pcie.3"
+  addr = "00.0"
+
+[device "tablet"]
+  driver = "usb-tablet"
+  bus = "usb.0"
+
+
+# VGA compatible controller
+# =========================================================
+#
+# We plug the QXL video card directly into the PCI Express
+# Root Bus as it is a legacy PCI device; this way, we can
+# reduce the number of PCI Express controllers in the
+# guest.
+#
+# If you're running the guest on a remote, potentially
+# headless host, you will probably want to append something
+# like
+#
+#   -display vnc=127.0.0.1:0
+#
+# to the command line in order to prevent QEMU from
+# creating a graphical display window on the host and
+# enable remote access instead.
+
+[device "video"]
+  driver = "qxl-vga"
+  bus = "pcie.0"
+  addr = "01.0"
+
+
+# Audio device
+# =========================================================
+#
+# Like the video card, the sound card is a legacy PCI
+# device and as such can be plugged directly into the PCI
+# Express Root Bus.
+
+[device "sound"]
+  driver = "ich9-intel-hda"
+  bus = "pcie.0"
+  addr = "1b.0"
+
+[device "duplex"]
+  driver = "hda-duplex"
+  bus = "sound.0"
+  cad = "0"