1 # q35 - VirtIO guest (graphical console)
2 # =========================================================
6 # $ qemu-system-x86_64 \
8 # -readconfig q35-virtio-graphical.cfg
10 # You will probably need to tweak the lines marked as
11 # CHANGE ME before being able to use this configuration!
13 # The guest will have a selection of VirtIO devices
14 # tailored towards optimal performance with modern guests,
15 # and will be accessed through a graphical console.
17 # ---------------------------------------------------------
19 # Using -nodefaults is required to have full control over
20 # the virtual hardware: when it's specified, QEMU will
21 # populate the board with only the builtin peripherals
22 # plus a small selection of core PCI devices and
23 # controllers; the user will then have to explicitly add
26 # The core PCI devices show up in the guest as:
29 # 00:1f.0 ISA bridge / LPC
30 # 00:1f.2 SATA (AHCI) controller
31 # 00:1f.3 SMBus controller
33 # This configuration file adds a number of other useful
34 # devices, more specifically:
36 # 00:01.0 VGA compatible controller
37 # 00:1b.0 Audio device
38 # 00.1c.* PCI bridge (PCI Express Root Ports)
39 # 01:00.0 SCSI storage controller
40 # 02:00.0 Ethernet controller
41 # 03:00.0 USB controller
43 # More information about these devices is available below.
47 # =========================================================
49 # We use the q35 machine type and enable KVM acceleration
50 # for better performance.
52 # Using less than 1 GiB of memory is probably not going to
53 # yield good performance in the guest, and might even lead
54 # to obscure boot issues in some cases.
64 # PCI bridge (PCI Express Root Ports)
65 # =========================================================
67 # We create eight PCI Express Root Ports, and we plug them
68 # all into separate functions of the same slot. Some of
69 # them will be used by devices, the rest will remain
70 # available for hotplug.
73 driver = "pcie-root-port"
81 driver = "pcie-root-port"
88 driver = "pcie-root-port"
95 driver = "pcie-root-port"
102 driver = "pcie-root-port"
109 driver = "pcie-root-port"
116 driver = "pcie-root-port"
123 driver = "pcie-root-port"
130 # SCSI storage controller (and storage)
131 # =========================================================
133 # We use virtio-scsi here so that we can (hot)plug a large
134 # number of disks without running into issues; a SCSI disk,
135 # backed by a qcow2 disk image on the host's filesystem, is
138 # We also create an optical disk, mostly for installation
139 # purposes: once the guest OS has been successfully
140 # installed, the guest will no longer boot from optical
141 # media. If you don't want, or no longer want, to have an
142 # optical disk in the guest you can safely comment out
143 # all relevant sections below.
146 driver = "virtio-scsi-pci"
157 file = "guest.qcow2" # CHANGE ME
161 [device "scsi-optical-disk"]
164 drive = "optical-disk"
167 [drive "optical-disk"]
168 file = "install.iso" # CHANGE ME
173 # Ethernet controller
174 # =========================================================
176 # We use virtio-net for improved performance over emulated
177 # hardware; on the host side, we take advantage of user
178 # networking so that the QEMU process doesn't require any
179 # additional privileges.
185 driver = "virtio-net-pci"
191 # USB controller (and input devices)
192 # =========================================================
194 # We add a virtualization-friendly USB 3.0 controller and
195 # a USB tablet so that graphical guests can be controlled
196 # appropriately. A USB keyboard is not needed, as q35
197 # guests get a PS/2 one added automatically.
200 driver = "nec-usb-xhci"
205 driver = "usb-tablet"
209 # VGA compatible controller
210 # =========================================================
212 # We plug the QXL video card directly into the PCI Express
213 # Root Bus as it is a legacy PCI device; this way, we can
214 # reduce the number of PCI Express controllers in the
217 # If you're running the guest on a remote, potentially
218 # headless host, you will probably want to append something
221 # -display vnc=127.0.0.1:0
223 # to the command line in order to prevent QEMU from
224 # creating a graphical display window on the host and
225 # enable remote access instead.
234 # =========================================================
236 # Like the video card, the sound card is a legacy PCI
237 # device and as such can be plugged directly into the PCI
241 driver = "ich9-intel-hda"
246 driver = "hda-duplex"