From patchwork Wed Mar 1 13:51:36 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 9598401 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0CD2060453 for ; Wed, 1 Mar 2017 13:54:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E253228526 for ; Wed, 1 Mar 2017 13:54:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D553228541; Wed, 1 Mar 2017 13:54:02 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 59D8628526 for ; Wed, 1 Mar 2017 13:54:01 +0000 (UTC) Received: from localhost ([::1]:46664 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cj4hc-0002aL-E9 for patchwork-qemu-devel@patchwork.kernel.org; Wed, 01 Mar 2017 08:54:00 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53033) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cj4fU-00011k-8Y for qemu-devel@nongnu.org; Wed, 01 Mar 2017 08:51:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cj4fR-0003lW-4P for qemu-devel@nongnu.org; Wed, 01 Mar 2017 08:51:48 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46636) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cj4fQ-0003k4-Qh for qemu-devel@nongnu.org; Wed, 01 Mar 2017 08:51:45 -0500 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6717B80F6B for ; Wed, 1 Mar 2017 13:51:44 +0000 (UTC) Received: from nilsson.home.kraxel.org (ovpn-116-35.ams2.redhat.com [10.36.116.35]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v21DpgPV012453; Wed, 1 Mar 2017 08:51:42 -0500 Received: by nilsson.home.kraxel.org (Postfix, from userid 500) id 964858057B; Wed, 1 Mar 2017 14:51:39 +0100 (CET) From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Wed, 1 Mar 2017 14:51:36 +0100 Message-Id: <1488376297-19711-2-git-send-email-kraxel@redhat.com> In-Reply-To: <1488376297-19711-1-git-send-email-kraxel@redhat.com> References: <1488376297-19711-1-git-send-email-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Wed, 01 Mar 2017 13:51:44 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 1/2] q35: Improve sample configuration files X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrea Bolognani , Gerd Hoffmann Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Andrea Bolognani Instead of having a single sample configuration file, we now have several: * q35-emulated.cfg documents the default devices QEMU adds to a q35 guest and the additional devices that are pretty much guaranteed to be present in a physical q35-based machine; * q35-virtio-graphical.cfg can be used to start a fully-featured (USB, graphical console, audio, etc.) guest that uses VirtIO instead of emulated devices; * q35-virtio-serial.cfg is similar but has a minimal set of devices and uses the serial console. All configuration files are fully commented and neatly organized. Signed-off-by: Andrea Bolognani Reviewed-by: Marcel Apfelbaum Message-id: 1487326479-8664-2-git-send-email-abologna@redhat.com Signed-off-by: Gerd Hoffmann --- docs/q35-chipset.cfg | 152 ---------------------- docs/q35-emulated.cfg | 288 ++++++++++++++++++++++++++++++++++++++++++ docs/q35-virtio-graphical.cfg | 248 ++++++++++++++++++++++++++++++++++++ docs/q35-virtio-serial.cfg | 193 ++++++++++++++++++++++++++++ 4 files changed, 729 insertions(+), 152 deletions(-) delete mode 100644 docs/q35-chipset.cfg create mode 100644 docs/q35-emulated.cfg create mode 100644 docs/q35-virtio-graphical.cfg create mode 100644 docs/q35-virtio-serial.cfg diff --git a/docs/q35-chipset.cfg b/docs/q35-chipset.cfg deleted file mode 100644 index e4ddb7d..0000000 --- a/docs/q35-chipset.cfg +++ /dev/null @@ -1,152 +0,0 @@ -################################################################ -# -# qemu -M q35 creates a bare machine with just the very essential -# chipset devices being present: -# -# 00.0 - Host bridge -# 1f.0 - ISA bridge / LPC -# 1f.2 - SATA (AHCI) controller -# 1f.3 - SMBus controller -# -# This config file documents the other devices and how they are -# created. You can simply use "-readconfig $thisfile" to create -# them all. Here is a overview: -# -# 19.0 - Ethernet controller (not created, our e1000 emulation -# doesn't emulate the ich9 device). -# 1a.* - USB Controller #2 (ehci + uhci companions) -# 1b.0 - HD Audio Controller -# 1c.* - PCI Express Ports -# 1d.* - USB Controller #1 (ehci + uhci companions, -# "qemu -M q35 -usb" creates these too) -# 1e.0 - PCI Bridge -# - -[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" - - -[device "ich9-hda-audio"] - driver = "ich9-intel-hda" - bus = "pcie.0" - addr = "1b.0" - - -[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" - -## -# Example PCIe switch with two downstream ports -# -#[device "pcie-switch-upstream-port-1"] -# driver = "x3130-upstream" -# bus = "ich9-pcie-port-4" -# addr = "00.0" -# -#[device "pcie-switch-downstream-port-1-1"] -# driver = "xio3130-downstream" -# multifunction = "on" -# bus = "pcie-switch-upstream-port-1" -# addr = "00.0" -# port = "1" -# chassis = "5" -# -#[device "pcie-switch-downstream-port-1-2"] -# driver = "xio3130-downstream" -# multifunction = "on" -# bus = "pcie-switch-upstream-port-1" -# addr = "00.1" -# port = "1" -# chassis = "6" - -[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" - - -[device "ich9-pci-bridge"] - driver = "i82801b11-bridge" - bus = "pcie.0" - addr = "1e.0" diff --git a/docs/q35-emulated.cfg b/docs/q35-emulated.cfg new file mode 100644 index 0000000..c6416d6 --- /dev/null +++ b/docs/q35-emulated.cfg @@ -0,0 +1,288 @@ +# 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" diff --git a/docs/q35-virtio-graphical.cfg b/docs/q35-virtio-graphical.cfg new file mode 100644 index 0000000..28bde2f --- /dev/null +++ b/docs/q35-virtio-graphical.cfg @@ -0,0 +1,248 @@ +# 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" diff --git a/docs/q35-virtio-serial.cfg b/docs/q35-virtio-serial.cfg new file mode 100644 index 0000000..c33c9cc --- /dev/null +++ b/docs/q35-virtio-serial.cfg @@ -0,0 +1,193 @@ +# q35 - VirtIO guest (serial console) +# ========================================================= +# +# Usage: +# +# $ qemu-system-x86_64 \ +# -nodefaults \ +# -readconfig q35-virtio-serial.cfg \ +# -display none -serial mon:stdio +# +# 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 the serial 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: +# +# 00.1c.* PCI bridge (PCI Express Root Ports) +# 01:00.0 SCSI storage controller +# 02:00.0 Ethernet controller +# +# More information about these devices is available below. +# +# We use '-display none' to prevent QEMU from creating a +# graphical display window, which would serve no use in +# this specific configuration, and '-serial mon:stdio' to +# multiplex the guest's serial console and the QEMU monitor +# to the host's stdio; use 'Ctrl+A h' to learn how to +# switch between the two and more. + + +# 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"