q35-virtio-graphical.cfg (5941B)
1 # q35 - VirtIO guest (graphical console) 2 # ========================================================= 3 # 4 # Usage: 5 # 6 # $ qemu-system-x86_64 \ 7 # -nodefaults \ 8 # -readconfig q35-virtio-graphical.cfg 9 # 10 # You will probably need to tweak the lines marked as 11 # CHANGE ME before being able to use this configuration! 12 # 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. 16 # 17 # --------------------------------------------------------- 18 # 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 24 # further devices. 25 # 26 # The core PCI devices show up in the guest as: 27 # 28 # 00:00.0 Host bridge 29 # 00:1f.0 ISA bridge / LPC 30 # 00:1f.2 SATA (AHCI) controller 31 # 00:1f.3 SMBus controller 32 # 33 # This configuration file adds a number of other useful 34 # devices, more specifically: 35 # 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 42 # 43 # More information about these devices is available below. 44 45 46 # Machine options 47 # ========================================================= 48 # 49 # We use the q35 machine type and enable KVM acceleration 50 # for better performance. 51 # 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. 55 56 [machine] 57 type = "q35" 58 accel = "kvm" 59 60 [memory] 61 size = "1024" 62 63 64 # PCI bridge (PCI Express Root Ports) 65 # ========================================================= 66 # 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. 71 72 [device "pcie.1"] 73 driver = "pcie-root-port" 74 bus = "pcie.0" 75 addr = "1c.0" 76 port = "1" 77 chassis = "1" 78 multifunction = "on" 79 80 [device "pcie.2"] 81 driver = "pcie-root-port" 82 bus = "pcie.0" 83 addr = "1c.1" 84 port = "2" 85 chassis = "2" 86 87 [device "pcie.3"] 88 driver = "pcie-root-port" 89 bus = "pcie.0" 90 addr = "1c.2" 91 port = "3" 92 chassis = "3" 93 94 [device "pcie.4"] 95 driver = "pcie-root-port" 96 bus = "pcie.0" 97 addr = "1c.3" 98 port = "4" 99 chassis = "4" 100 101 [device "pcie.5"] 102 driver = "pcie-root-port" 103 bus = "pcie.0" 104 addr = "1c.4" 105 port = "5" 106 chassis = "5" 107 108 [device "pcie.6"] 109 driver = "pcie-root-port" 110 bus = "pcie.0" 111 addr = "1c.5" 112 port = "6" 113 chassis = "6" 114 115 [device "pcie.7"] 116 driver = "pcie-root-port" 117 bus = "pcie.0" 118 addr = "1c.6" 119 port = "7" 120 chassis = "7" 121 122 [device "pcie.8"] 123 driver = "pcie-root-port" 124 bus = "pcie.0" 125 addr = "1c.7" 126 port = "8" 127 chassis = "8" 128 129 130 # SCSI storage controller (and storage) 131 # ========================================================= 132 # 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 136 # attached to it. 137 # 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. 144 145 [device "scsi"] 146 driver = "virtio-scsi-pci" 147 bus = "pcie.1" 148 addr = "00.0" 149 150 [device "scsi-disk"] 151 driver = "scsi-hd" 152 bus = "scsi.0" 153 drive = "disk" 154 bootindex = "1" 155 156 [drive "disk"] 157 file = "guest.qcow2" # CHANGE ME 158 format = "qcow2" 159 if = "none" 160 161 [device "scsi-optical-disk"] 162 driver = "scsi-cd" 163 bus = "scsi.0" 164 drive = "optical-disk" 165 bootindex = "2" 166 167 [drive "optical-disk"] 168 file = "install.iso" # CHANGE ME 169 format = "raw" 170 if = "none" 171 172 173 # Ethernet controller 174 # ========================================================= 175 # 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. 180 181 [netdev "hostnet"] 182 type = "user" 183 184 [device "net"] 185 driver = "virtio-net-pci" 186 netdev = "hostnet" 187 bus = "pcie.2" 188 addr = "00.0" 189 190 191 # USB controller (and input devices) 192 # ========================================================= 193 # 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. 198 199 [device "usb"] 200 driver = "nec-usb-xhci" 201 bus = "pcie.3" 202 addr = "00.0" 203 204 [device "tablet"] 205 driver = "usb-tablet" 206 bus = "usb.0" 207 208 209 # VGA compatible controller 210 # ========================================================= 211 # 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 215 # guest. 216 # 217 # If you're running the guest on a remote, potentially 218 # headless host, you will probably want to append something 219 # like 220 # 221 # -display vnc=127.0.0.1:0 222 # 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. 226 227 [device "video"] 228 driver = "qxl-vga" 229 bus = "pcie.0" 230 addr = "01.0" 231 232 233 # Audio device 234 # ========================================================= 235 # 236 # Like the video card, the sound card is a legacy PCI 237 # device and as such can be plugged directly into the PCI 238 # Express Root Bus. 239 240 [device "sound"] 241 driver = "ich9-intel-hda" 242 bus = "pcie.0" 243 addr = "1b.0" 244 245 [device "duplex"] 246 driver = "hda-duplex" 247 bus = "sound.0" 248 cad = "0"