qemu

FORK: QEMU emulator
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q35-virtio-serial.cfg (4754B)

      1 # q35 - VirtIO guest (serial console)
      2 # =========================================================
      3 #
      4 # Usage:
      5 #
      6 #   $ qemu-system-x86_64 \
      7 #     -nodefaults \
      8 #     -readconfig q35-virtio-serial.cfg \
      9 #     -display none -serial mon:stdio
     10 #
     11 # You will probably need to tweak the lines marked as
     12 # CHANGE ME before being able to use this configuration!
     13 #
     14 # The guest will have a selection of VirtIO devices
     15 # tailored towards optimal performance with modern guests,
     16 # and will be accessed through the serial console.
     17 #
     18 # ---------------------------------------------------------
     19 #
     20 # Using -nodefaults is required to have full control over
     21 # the virtual hardware: when it's specified, QEMU will
     22 # populate the board with only the builtin peripherals
     23 # plus a small selection of core PCI devices and
     24 # controllers; the user will then have to explicitly add
     25 # further devices.
     26 #
     27 # The core PCI devices show up in the guest as:
     28 #
     29 #   00:00.0 Host bridge
     30 #   00:1f.0 ISA bridge / LPC
     31 #   00:1f.2 SATA (AHCI) controller
     32 #   00:1f.3 SMBus controller
     33 #
     34 # This configuration file adds a number of other useful
     35 # devices, more specifically:
     36 #
     37 #   00.1c.* PCI bridge (PCI Express Root Ports)
     38 #   01:00.0 SCSI storage controller
     39 #   02:00.0 Ethernet controller
     40 #
     41 # More information about these devices is available below.
     42 #
     43 # We use '-display none' to prevent QEMU from creating a
     44 # graphical display window, which would serve no use in
     45 # this specific configuration, and '-serial mon:stdio' to
     46 # multiplex the guest's serial console and the QEMU monitor
     47 # to the host's stdio; use 'Ctrl+A h' to learn how to
     48 # switch between the two and more.
     49 
     50 
     51 # Machine options
     52 # =========================================================
     53 #
     54 # We use the q35 machine type and enable KVM acceleration
     55 # for better performance.
     56 #
     57 # Using less than 1 GiB of memory is probably not going to
     58 # yield good performance in the guest, and might even lead
     59 # to obscure boot issues in some cases.
     60 
     61 [machine]
     62   type = "q35"
     63   accel = "kvm"
     64 
     65 [memory]
     66   size = "1024"
     67 
     68 
     69 # PCI bridge (PCI Express Root Ports)
     70 # =========================================================
     71 #
     72 # We create eight PCI Express Root Ports, and we plug them
     73 # all into separate functions of the same slot. Some of
     74 # them will be used by devices, the rest will remain
     75 # available for hotplug.
     76 
     77 [device "pcie.1"]
     78   driver = "pcie-root-port"
     79   bus = "pcie.0"
     80   addr = "1c.0"
     81   port = "1"
     82   chassis = "1"
     83   multifunction = "on"
     84 
     85 [device "pcie.2"]
     86   driver = "pcie-root-port"
     87   bus = "pcie.0"
     88   addr = "1c.1"
     89   port = "2"
     90   chassis = "2"
     91 
     92 [device "pcie.3"]
     93   driver = "pcie-root-port"
     94   bus = "pcie.0"
     95   addr = "1c.2"
     96   port = "3"
     97   chassis = "3"
     98 
     99 [device "pcie.4"]
    100   driver = "pcie-root-port"
    101   bus = "pcie.0"
    102   addr = "1c.3"
    103   port = "4"
    104   chassis = "4"
    105 
    106 [device "pcie.5"]
    107   driver = "pcie-root-port"
    108   bus = "pcie.0"
    109   addr = "1c.4"
    110   port = "5"
    111   chassis = "5"
    112 
    113 [device "pcie.6"]
    114   driver = "pcie-root-port"
    115   bus = "pcie.0"
    116   addr = "1c.5"
    117   port = "6"
    118   chassis = "6"
    119 
    120 [device "pcie.7"]
    121   driver = "pcie-root-port"
    122   bus = "pcie.0"
    123   addr = "1c.6"
    124   port = "7"
    125   chassis = "7"
    126 
    127 [device "pcie.8"]
    128   driver = "pcie-root-port"
    129   bus = "pcie.0"
    130   addr = "1c.7"
    131   port = "8"
    132   chassis = "8"
    133 
    134 
    135 # SCSI storage controller (and storage)
    136 # =========================================================
    137 #
    138 # We use virtio-scsi here so that we can (hot)plug a large
    139 # number of disks without running into issues; a SCSI disk,
    140 # backed by a qcow2 disk image on the host's filesystem, is
    141 # attached to it.
    142 #
    143 # We also create an optical disk, mostly for installation
    144 # purposes: once the guest OS has been successfully
    145 # installed, the guest will no longer boot from optical
    146 # media. If you don't want, or no longer want, to have an
    147 # optical disk in the guest you can safely comment out
    148 # all relevant sections below.
    149 
    150 [device "scsi"]
    151   driver = "virtio-scsi-pci"
    152   bus = "pcie.1"
    153   addr = "00.0"
    154 
    155 [device "scsi-disk"]
    156   driver = "scsi-hd"
    157   bus = "scsi.0"
    158   drive = "disk"
    159   bootindex = "1"
    160 
    161 [drive "disk"]
    162   file = "guest.qcow2"                          # CHANGE ME
    163   format = "qcow2"
    164   if = "none"
    165 
    166 [device "scsi-optical-disk"]
    167   driver = "scsi-cd"
    168   bus = "scsi.0"
    169   drive = "optical-disk"
    170   bootindex = "2"
    171 
    172 [drive "optical-disk"]
    173   file = "install.iso"                          # CHANGE ME
    174   format = "raw"
    175   if = "none"
    176 
    177 
    178 # Ethernet controller
    179 # =========================================================
    180 #
    181 # We use virtio-net for improved performance over emulated
    182 # hardware; on the host side, we take advantage of user
    183 # networking so that the QEMU process doesn't require any
    184 # additional privileges.
    185 
    186 [netdev "hostnet"]
    187   type = "user"
    188 
    189 [device "net"]
    190   driver = "virtio-net-pci"
    191   netdev = "hostnet"
    192   bus = "pcie.2"
    193   addr = "00.0"