# q35 - Emulated guest (graphical console) # ========================================================= # # Usage: # # $ qemu-system-x86_64 \ # -nodefaults \ # -readconfig q35-emulated.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 emulated devices that # closely resembles that of a physical machine, 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 devices that # are pretty much guaranteed to be present in every single # physical machine based on q35, more specifically: # # 00:01.0 VGA compatible controller # 00:19.0 Ethernet controller # 00:1a.* USB controller (#2) # 00:1b.0 Audio device # 00:1c.* PCI bridge (PCI Express Root Ports) # 00:1d.* USB Controller (#1) # 00:1e.0 PCI bridge (legacy PCI bridge) # # 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. # # Unfortunately, there is no way to configure the CPU model # in this file, so it will have to be provided on the # command line. [machine] type = "q35" accel = "kvm" [memory] size = "1024" # PCI bridge (PCI Express Root Ports) # ========================================================= # # We add four PCI Express Root Ports, all sharing the same # slot on the PCI Express Root Bus. These ports support # hotplug. [device "ich9-pcie-port-1"] driver = "ioh3420" multifunction = "on" bus = "pcie.0" addr = "1c.0" port = "1" chassis = "1" [device "ich9-pcie-port-2"] driver = "ioh3420" multifunction = "on" bus = "pcie.0" addr = "1c.1" port = "2" chassis = "2" [device "ich9-pcie-port-3"] driver = "ioh3420" multifunction = "on" bus = "pcie.0" addr = "1c.2" port = "3" chassis = "3" [device "ich9-pcie-port-4"] driver = "ioh3420" multifunction = "on" bus = "pcie.0" addr = "1c.3" port = "4" chassis = "4" # PCI bridge (legacy PCI bridge) # ========================================================= # # This bridge can be used to build an independent topology # for legacy PCI devices. PCI Express devices should be # plugged into PCI Express slots instead, so ideally there # will be no devices connected to this bridge. [device "ich9-pci-bridge"] driver = "i82801b11-bridge" bus = "pcie.0" addr = "1e.0" # SATA storage # ========================================================= # # An implicit SATA controller is created automatically for # every single q35 guest; here we create a disk, backed by # a qcow2 disk image on the host's filesystem, and attach # it to that controller so that the guest can use 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 "sata-disk"] driver = "ide-hd" bus = "ide.0" drive = "disk" bootindex = "1" [drive "disk"] file = "guest.qcow2" # CHANGE ME format = "qcow2" if = "none" [device "sata-optical-disk"] driver = "ide-cd" bus = "ide.1" drive = "optical-disk" bootindex = "2" [drive "optical-disk"] file = "install.iso" # CHANGE ME format = "raw" if = "none" # USB controller (#1) # ========================================================= # # EHCI controller + UHCI companion controllers. [device "ich9-ehci-1"] driver = "ich9-usb-ehci1" multifunction = "on" bus = "pcie.0" addr = "1d.7" [device "ich9-uhci-1"] driver = "ich9-usb-uhci1" multifunction = "on" bus = "pcie.0" addr = "1d.0" masterbus = "ich9-ehci-1.0" firstport = "0" [device "ich9-uhci-2"] driver = "ich9-usb-uhci2" multifunction = "on" bus = "pcie.0" addr = "1d.1" masterbus = "ich9-ehci-1.0" firstport = "2" [device "ich9-uhci-3"] driver = "ich9-usb-uhci3" multifunction = "on" bus = "pcie.0" addr = "1d.2" masterbus = "ich9-ehci-1.0" firstport = "4" # USB controller (#2) # ========================================================= # # EHCI controller + UHCI companion controllers. [device "ich9-ehci-2"] driver = "ich9-usb-ehci2" multifunction = "on" bus = "pcie.0" addr = "1a.7" [device "ich9-uhci-4"] driver = "ich9-usb-uhci4" multifunction = "on" bus = "pcie.0" addr = "1a.0" masterbus = "ich9-ehci-2.0" firstport = "0" [device "ich9-uhci-5"] driver = "ich9-usb-uhci5" multifunction = "on" bus = "pcie.0" addr = "1a.1" masterbus = "ich9-ehci-2.0" firstport = "2" [device "ich9-uhci-6"] driver = "ich9-usb-uhci6" multifunction = "on" bus = "pcie.0" addr = "1a.2" masterbus = "ich9-ehci-2.0" firstport = "4" # Ethernet controller # ========================================================= # # We add a Gigabit Ethernet interface to the guest; 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 = "e1000" netdev = "hostnet" bus = "pcie.0" addr = "19.0" # VGA compatible controller # ========================================================= # # We use stdvga instead of Cirrus as it supports more video # modes and is closer to what actual hardware looks like. # # 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 = "VGA" bus = "pcie.0" addr = "01.0" # Audio device # ========================================================= # # The sound card is a legacy PCI device that is plugged # directly into the PCI Express Root Bus. [device "ich9-hda-audio"] driver = "ich9-intel-hda" bus = "pcie.0" addr = "1b.0" [device "ich9-hda-duplex"] driver = "hda-duplex" bus = "ich9-hda-audio.0" cad = "0"