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docs: Convert 'drvxen' page to rST
Fix the referenced anchor in 'formatdomain.rst' right away. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Peter Krempa
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml">
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<body>
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<h1>libxl hypervisor driver for Xen</h1>
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<ul id="toc"></ul>
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<p>
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The libvirt libxl driver provides the ability to manage virtual
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machines on any Xen release from 4.6.0 onwards.
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</p>
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<h2><a id="project">Project Links</a></h2>
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<ul>
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<li>
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The <a href="https://www.xenproject.org">Xen</a>
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hypervisor on Linux and Solaris hosts
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</li>
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</ul>
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<h2><a id="prereq">Deployment pre-requisites</a></h2>
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<p>
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The libvirt libxl driver uses Xen's libxl API, also known as
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libxenlight, to implement libvirt's hypervisor driver
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functionality. libxl provides a consolidated interface for
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managing a Xen host and its virtual machines, unlike old
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versions of Xen where applications often had to communicate
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with xend, xenstored, and the hypervisor itself via hypercalls.
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With libxl the only pre-requisit is a properly installed Xen
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host with the libxl toolstack running in a service domain
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(often Domain-0).
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</p>
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<h2><a id="uri">Connections to libxl driver</a></h2>
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<p>
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The libvirt libxl driver is a single-instance privileged driver,
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with a driver name of 'xen'. Some example connection URIs for
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the libxl driver are:
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</p>
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<pre>
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xen:///system (local access, direct)
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xen+unix:///system (local access, via daemon)
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xen://example.com/system (remote access, TLS/x509)
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xen+tcp://example.com/system (remote access, SASl/Kerberos)
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xen+ssh://root@example.com/system (remote access, SSH tunnelled)
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</pre>
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<h2><a id="configFiles">Location of configuration files</a></h2>
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<p>
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The libxl driver comes with sane default values. However, during its
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initialization it reads a configuration file which offers system
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administrator to override some of that default. The file is located
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under <code>/etc/libvirt/libxl.conf</code>
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</p>
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<h2><a id="imex">Import and export of libvirt domain XML configs</a></h2>
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<p>
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The libxl driver currently supports three native
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config formats. The first, known as <code>xen-xm</code>, is the
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original Xen virtual machine config format used by the legacy
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xm/xend toolstack. The second, known as <code>xen-sxpr</code>,
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is also one of the original formats that was used by xend's
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legacy HTTP RPC service (<span class='removed'>removed in 5.6.0</span>)
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</p>
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<p>
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The third format is <code>xen-xl</code>, which is the virtual
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machine config format supported by modern Xen. The <code>xen-xl</code>
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format is described in the xl.cfg(5) man page.
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</p>
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<h3><a id="xmlimport">Converting from XM config files to domain XML</a></h3>
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<p>
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The <code>virsh domxml-from-native</code> provides a way to convert an
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existing set of xl, xm, or sxpr config files to libvirt Domain XML,
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which can then be used by libvirt.
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</p>
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<pre>$ virsh -c xen:///system domxml-from-native xen-xm rhel5.cfg
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<domain type='xen'>
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<name>rhel5pv</name>
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<uuid>8f07fe28-753f-2729-d76d-bdbd892f949a</uuid>
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<memory>2560000</memory>
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<currentMemory>307200</currentMemory>
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<vcpu>4</vcpu>
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<bootloader>/usr/bin/pygrub</bootloader>
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<os>
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<type arch='x86_64' machine='xenpv'>linux</type>
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</os>
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<clock offset='utc'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>restart</on_crash>
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<devices>
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<disk type='file' device='disk'>
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<driver name='tap' type='aio'/>
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<source file='/var/lib/xen/images/rhel5pv.img'/>
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<target dev='xvda' bus='xen'/>
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</disk>
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<disk type='file' device='disk'>
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<driver name='tap' type='qcow'/>
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<source file='/root/qcow1-xen.img'/>
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<target dev='xvdd' bus='xen'/>
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</disk>
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<interface type='bridge'>
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<mac address='00:16:3e:60:36:ba'/>
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<source bridge='xenbr0'/>
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</interface>
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<console type='pty'>
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<target port='0'/>
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</console>
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<input type='mouse' bus='xen'/>
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<graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'/>
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</devices>
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</domain></pre>
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<h3><a id="xmlexport">Converting from domain XML to XM config files</a></h3>
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<p>
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The <code>virsh domxml-to-native</code> provides a way to convert a
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guest description using libvirt Domain XML into xl, xm, or sxpr config
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format.
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</p>
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<pre>$ virsh -c xen:///system domxml-to-native xen-xm rhel5pv.xml
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name = "rhel5pv"
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uuid = "8f07fe28-753f-2729-d76d-bdbd892f949a"
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maxmem = 2500
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memory = 300
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vcpus = 4
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bootloader = "/usr/bin/pygrub"
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kernel = "/var/lib/xen/boot_kernel.0YK-cS"
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ramdisk = "/var/lib/xen/boot_ramdisk.vWgrxK"
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extra = "ro root=/dev/VolGroup00/LogVol00 rhgb quiet"
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on_poweroff = "destroy"
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on_reboot = "restart"
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on_crash = "restart"
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sdl = 0
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vnc = 1
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vncunused = 1
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vnclisten = "0.0.0.0"
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disk = [ "tap:aio:/var/lib/xen/images/rhel5pv.img,xvda,w", "tap:qcow:/root/qcow1-xen.img,xvdd,w" ]
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vif = [ "mac=00:16:3e:60:36:ba,bridge=virbr0,script=vif-bridge,vifname=vif5.0" ]</pre>
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<h2><a id="xencommand">Pass-through of arbitrary command-line arguments
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to the qemu device model</a></h2>
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<p><span class="since">Since 6.7.0</span>, the Xen driver supports passing
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arbitrary command-line arguments to the qemu device model used by Xen with
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the <code><xen:commandline></code> element under <code>domain</code>.
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In order to use command-line pass-through, an XML namespace request must be
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issued that pulls in <code>http://libvirt.org/schemas/domain/xen/1.0</code>.
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With the namespace in place, it is then possible to add
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<code><xen:arg></code>sub-elements to
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<code><xen:commandline></code> describing each argument passed to
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the device model when starting the domain.
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</p>
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<p>The following example illustrates passing arguments to the QEMU device
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model that define a floppy drive, which Xen does not support through its
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public APIs:
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</p>
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<pre>
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<domain type="xen" xmlns:xen="http://libvirt.org/schemas/domain/xen/1.0">
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...
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<xen:commandline>
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<xen:arg value='-drive'/>
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<xen:arg value='file=/path/to/image,format=raw,if=none,id=drive-fdc0-0-0'/>
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<xen:arg value='-global'/>
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<xen:arg value='isa-fdc.driveA=drive-fdc0-0-0'/>
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</xen:commandline>
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</domain>
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</pre>
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<h2><a id="xmlconfig">Example domain XML config</a></h2>
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<p>
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Below are some example XML configurations for Xen guest domains.
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For full details of the available options, consult the <a href="formatdomain.html">domain XML format</a>
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guide.
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</p>
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<h3>Paravirtualized guest bootloader</h3>
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<p>
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Using a bootloader allows a paravirtualized guest to be booted using
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a kernel stored inside its virtual disk image
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</p>
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<pre><domain type='xen' >
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<name>fc8</name>
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<bootloader>/usr/bin/pygrub</bootloader>
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<os>
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<type>linux</type>
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</os>
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<memory>131072</memory>
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<vcpu>1</vcpu>
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<devices>
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<disk type='file'>
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<source file='/var/lib/xen/images/fc4.img'/>
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<target dev='sda1'/>
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</disk>
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<interface type='bridge'>
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<source bridge='xenbr0'/>
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<mac address='aa:00:00:00:00:11'/>
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<script path='/etc/xen/scripts/vif-bridge'/>
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</interface>
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<console tty='/dev/pts/5'/>
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</devices>
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</domain></pre>
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<h3>Paravirtualized guest direct kernel boot</h3>
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<p>
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For installation of paravirtualized guests it is typical to boot the
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domain using a kernel and initrd stored in the host OS
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</p>
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<pre><domain type='xen' >
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<name>fc8</name>
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<os>
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<type>linux</type>
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<kernel>/var/lib/xen/install/vmlinuz-fedora8-x86_64</kernel>
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<initrd>/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64</initrd>
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<cmdline> kickstart=http://example.com/myguest.ks </cmdline>
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</os>
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<memory>131072</memory>
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<vcpu>1</vcpu>
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<devices>
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<disk type='file'>
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<source file='/var/lib/xen/images/fc4.img'/>
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<target dev='sda1'/>
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</disk>
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<interface type='bridge'>
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<source bridge='xenbr0'/>
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<mac address='aa:00:00:00:00:11'/>
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<script path='/etc/xen/scripts/vif-bridge'/>
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</interface>
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<graphics type='vnc' port='-1'/>
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<console tty='/dev/pts/5'/>
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</devices>
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</domain></pre>
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<h3>Fullyvirtualized guest BIOS boot</h3>
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<p>
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Fullyvirtualized guests use the emulated BIOS to boot off the primary
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harddisk, CDROM or Network PXE ROM.
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</p>
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<pre><domain type='xen' id='3'>
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<name>fv0</name>
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<uuid>4dea22b31d52d8f32516782e98ab3fa0</uuid>
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<os>
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<type>hvm</type>
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<loader>/usr/lib/xen/boot/hvmloader</loader>
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<boot dev='hd'/>
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</os>
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<memory>524288</memory>
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<vcpu>1</vcpu>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>restart</on_crash>
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<features>
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<pae/>
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<acpi/>
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<apic/>
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</features>
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<clock sync="localtime"/>
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<devices>
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<emulator>/usr/lib/xen/bin/qemu-dm</emulator>
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<interface type='bridge'>
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<source bridge='xenbr0'/>
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<mac address='00:16:3e:5d:c7:9e'/>
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<script path='vif-bridge'/>
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</interface>
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<disk type='file'>
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<source file='/var/lib/xen/images/fv0'/>
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<target dev='hda'/>
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</disk>
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<disk type='file' device='cdrom'>
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<source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/>
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<target dev='hdc'/>
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<readonly/>
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</disk>
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<disk type='file' device='floppy'>
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<source file='/root/fd.img'/>
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<target dev='fda'/>
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</disk>
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<graphics type='vnc' port='5904'/>
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</devices>
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</domain></pre>
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<h3>Fullyvirtualized guest direct kernel boot</h3>
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<p>
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With Xen 3.2.0 or later it is possible to bypass the BIOS and directly
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boot a Linux kernel and initrd as a fullyvirtualized domain. This allows
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for complete automation of OS installation, for example using the Anaconda
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|
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kickstart support.
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|
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</p>
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|
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|
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<pre><domain type='xen' id='3'>
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<name>fv0</name>
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<uuid>4dea22b31d52d8f32516782e98ab3fa0</uuid>
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<os>
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<type>hvm</type>
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<loader>/usr/lib/xen/boot/hvmloader</loader>
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<kernel>/var/lib/xen/install/vmlinuz-fedora8-x86_64</kernel>
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<initrd>/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64</initrd>
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<cmdline> kickstart=http://example.com/myguest.ks </cmdline>
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</os>
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<memory>524288</memory>
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<vcpu>1</vcpu>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>restart</on_crash>
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<features>
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<pae/>
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||||||
<acpi/>
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<apic/>
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</features>
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<clock sync="localtime"/>
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<devices>
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<emulator>/usr/lib/xen/bin/qemu-dm</emulator>
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<interface type='bridge'>
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<source bridge='xenbr0'/>
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<mac address='00:16:3e:5d:c7:9e'/>
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<script path='vif-bridge'/>
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</interface>
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<disk type='file'>
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<source file='/var/lib/xen/images/fv0'/>
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<target dev='hda'/>
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</disk>
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<disk type='file' device='cdrom'>
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<source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/>
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<target dev='hdc'/>
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<readonly/>
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</disk>
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<disk type='file' device='floppy'>
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<source file='/root/fd.img'/>
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<target dev='fda'/>
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</disk>
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<graphics type='vnc' port='5904'/>
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|
||||||
</devices>
|
|
||||||
</domain></pre>
|
|
||||||
|
|
||||||
</body>
|
|
||||||
</html>
|
|
||||||
338
docs/drvxen.rst
Normal file
338
docs/drvxen.rst
Normal file
@ -0,0 +1,338 @@
|
|||||||
|
.. role:: since
|
||||||
|
|
||||||
|
===============================
|
||||||
|
libxl hypervisor driver for Xen
|
||||||
|
===============================
|
||||||
|
|
||||||
|
.. contents::
|
||||||
|
|
||||||
|
The libvirt libxl driver provides the ability to manage virtual machines on any
|
||||||
|
Xen release from 4.6.0 onwards.
|
||||||
|
|
||||||
|
Project Links
|
||||||
|
-------------
|
||||||
|
|
||||||
|
- The `Xen <https://www.xenproject.org>`__ hypervisor on Linux and Solaris
|
||||||
|
hosts
|
||||||
|
|
||||||
|
Deployment pre-requisites
|
||||||
|
-------------------------
|
||||||
|
|
||||||
|
The libvirt libxl driver uses Xen's libxl API, also known as libxenlight, to
|
||||||
|
implement libvirt's hypervisor driver functionality. libxl provides a
|
||||||
|
consolidated interface for managing a Xen host and its virtual machines, unlike
|
||||||
|
old versions of Xen where applications often had to communicate with xend,
|
||||||
|
xenstored, and the hypervisor itself via hypercalls. With libxl the only
|
||||||
|
pre-requisit is a properly installed Xen host with the libxl toolstack running
|
||||||
|
in a service domain (often Domain-0).
|
||||||
|
|
||||||
|
Connections to libxl driver
|
||||||
|
---------------------------
|
||||||
|
|
||||||
|
The libvirt libxl driver is a single-instance privileged driver, with a driver
|
||||||
|
name of 'xen'. Some example connection URIs for the libxl driver are:
|
||||||
|
|
||||||
|
::
|
||||||
|
|
||||||
|
xen:///system (local access, direct)
|
||||||
|
xen+unix:///system (local access, via daemon)
|
||||||
|
xen://example.com/system (remote access, TLS/x509)
|
||||||
|
xen+tcp://example.com/system (remote access, SASl/Kerberos)
|
||||||
|
xen+ssh://root@example.com/system (remote access, SSH tunnelled)
|
||||||
|
|
||||||
|
Location of configuration files
|
||||||
|
-------------------------------
|
||||||
|
|
||||||
|
The libxl driver comes with sane default values. However, during its
|
||||||
|
initialization it reads a configuration file which offers system administrator
|
||||||
|
to override some of that default. The file is located under
|
||||||
|
``/etc/libvirt/libxl.conf``
|
||||||
|
|
||||||
|
Import and export of libvirt domain XML configs
|
||||||
|
-----------------------------------------------
|
||||||
|
|
||||||
|
The libxl driver currently supports three native config formats. The first,
|
||||||
|
known as ``xen-xm``, is the original Xen virtual machine config format used by
|
||||||
|
the legacy xm/xend toolstack. The second, known as ``xen-sxpr``, is also one of
|
||||||
|
the original formats that was used by xend's legacy HTTP RPC service (
|
||||||
|
:since:`removed in 5.6.0` )
|
||||||
|
|
||||||
|
The third format is ``xen-xl``, which is the virtual machine config format
|
||||||
|
supported by modern Xen. The ``xen-xl`` format is described in the xl.cfg(5) man
|
||||||
|
page.
|
||||||
|
|
||||||
|
Converting from XM config files to domain XML
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
The ``virsh domxml-from-native`` provides a way to convert an existing set of
|
||||||
|
xl, xm, or sxpr config files to libvirt Domain XML, which can then be used by
|
||||||
|
libvirt.
|
||||||
|
|
||||||
|
::
|
||||||
|
|
||||||
|
$ virsh -c xen:///system domxml-from-native xen-xm rhel5.cfg
|
||||||
|
<domain type='xen'>
|
||||||
|
<name>rhel5pv</name>
|
||||||
|
<uuid>8f07fe28-753f-2729-d76d-bdbd892f949a</uuid>
|
||||||
|
<memory>2560000</memory>
|
||||||
|
<currentMemory>307200</currentMemory>
|
||||||
|
<vcpu>4</vcpu>
|
||||||
|
<bootloader>/usr/bin/pygrub</bootloader>
|
||||||
|
<os>
|
||||||
|
<type arch='x86_64' machine='xenpv'>linux</type>
|
||||||
|
</os>
|
||||||
|
<clock offset='utc'/>
|
||||||
|
<on_poweroff>destroy</on_poweroff>
|
||||||
|
<on_reboot>restart</on_reboot>
|
||||||
|
<on_crash>restart</on_crash>
|
||||||
|
<devices>
|
||||||
|
<disk type='file' device='disk'>
|
||||||
|
<driver name='tap' type='aio'/>
|
||||||
|
<source file='/var/lib/xen/images/rhel5pv.img'/>
|
||||||
|
<target dev='xvda' bus='xen'/>
|
||||||
|
</disk>
|
||||||
|
<disk type='file' device='disk'>
|
||||||
|
<driver name='tap' type='qcow'/>
|
||||||
|
<source file='/root/qcow1-xen.img'/>
|
||||||
|
<target dev='xvdd' bus='xen'/>
|
||||||
|
</disk>
|
||||||
|
<interface type='bridge'>
|
||||||
|
<mac address='00:16:3e:60:36:ba'/>
|
||||||
|
<source bridge='xenbr0'/>
|
||||||
|
</interface>
|
||||||
|
<console type='pty'>
|
||||||
|
<target port='0'/>
|
||||||
|
</console>
|
||||||
|
<input type='mouse' bus='xen'/>
|
||||||
|
<graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'/>
|
||||||
|
</devices>
|
||||||
|
</domain>
|
||||||
|
|
||||||
|
Converting from domain XML to XM config files
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
The ``virsh domxml-to-native`` provides a way to convert a guest description
|
||||||
|
using libvirt Domain XML into xl, xm, or sxpr config format.
|
||||||
|
|
||||||
|
::
|
||||||
|
|
||||||
|
$ virsh -c xen:///system domxml-to-native xen-xm rhel5pv.xml
|
||||||
|
name = "rhel5pv"
|
||||||
|
uuid = "8f07fe28-753f-2729-d76d-bdbd892f949a"
|
||||||
|
maxmem = 2500
|
||||||
|
memory = 300
|
||||||
|
vcpus = 4
|
||||||
|
bootloader = "/usr/bin/pygrub"
|
||||||
|
kernel = "/var/lib/xen/boot_kernel.0YK-cS"
|
||||||
|
ramdisk = "/var/lib/xen/boot_ramdisk.vWgrxK"
|
||||||
|
extra = "ro root=/dev/VolGroup00/LogVol00 rhgb quiet"
|
||||||
|
on_poweroff = "destroy"
|
||||||
|
on_reboot = "restart"
|
||||||
|
on_crash = "restart"
|
||||||
|
sdl = 0
|
||||||
|
vnc = 1
|
||||||
|
vncunused = 1
|
||||||
|
vnclisten = "0.0.0.0"
|
||||||
|
disk = [ "tap:aio:/var/lib/xen/images/rhel5pv.img,xvda,w", "tap:qcow:/root/qcow1-xen.img,xvdd,w" ]
|
||||||
|
vif = [ "mac=00:16:3e:60:36:ba,bridge=virbr0,script=vif-bridge,vifname=vif5.0" ]
|
||||||
|
|
||||||
|
Pass-through of arbitrary command-line arguments to the qemu device model
|
||||||
|
-------------------------------------------------------------------------
|
||||||
|
|
||||||
|
:since:`Since 6.7.0` , the Xen driver supports passing arbitrary command-line
|
||||||
|
arguments to the qemu device model used by Xen with the ``<xen:commandline>``
|
||||||
|
element under ``domain``. In order to use command-line pass-through, an XML
|
||||||
|
namespace request must be issued that pulls in
|
||||||
|
``http://libvirt.org/schemas/domain/xen/1.0``. With the namespace in place, it
|
||||||
|
is then possible to add ``<xen:arg>``\ sub-elements to ``<xen:commandline>``
|
||||||
|
describing each argument passed to the device model when starting the domain.
|
||||||
|
|
||||||
|
The following example illustrates passing arguments to the QEMU device model
|
||||||
|
that define a floppy drive, which Xen does not support through its public APIs:
|
||||||
|
|
||||||
|
::
|
||||||
|
|
||||||
|
<domain type="xen" xmlns:xen="http://libvirt.org/schemas/domain/xen/1.0">
|
||||||
|
...
|
||||||
|
<xen:commandline>
|
||||||
|
<xen:arg value='-drive'/>
|
||||||
|
<xen:arg value='file=/path/to/image,format=raw,if=none,id=drive-fdc0-0-0'/>
|
||||||
|
<xen:arg value='-global'/>
|
||||||
|
<xen:arg value='isa-fdc.driveA=drive-fdc0-0-0'/>
|
||||||
|
</xen:commandline>
|
||||||
|
</domain>
|
||||||
|
|
||||||
|
Example domain XML config
|
||||||
|
-------------------------
|
||||||
|
|
||||||
|
Below are some example XML configurations for Xen guest domains. For full
|
||||||
|
details of the available options, consult the `domain XML
|
||||||
|
format <formatdomain.html>`__ guide.
|
||||||
|
|
||||||
|
Paravirtualized guest bootloader
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
Using a bootloader allows a paravirtualized guest to be booted using a kernel
|
||||||
|
stored inside its virtual disk image
|
||||||
|
|
||||||
|
::
|
||||||
|
|
||||||
|
<domain type='xen' >
|
||||||
|
<name>fc8</name>
|
||||||
|
<bootloader>/usr/bin/pygrub</bootloader>
|
||||||
|
<os>
|
||||||
|
<type>linux</type>
|
||||||
|
</os>
|
||||||
|
<memory>131072</memory>
|
||||||
|
<vcpu>1</vcpu>
|
||||||
|
<devices>
|
||||||
|
<disk type='file'>
|
||||||
|
<source file='/var/lib/xen/images/fc4.img'/>
|
||||||
|
<target dev='sda1'/>
|
||||||
|
</disk>
|
||||||
|
<interface type='bridge'>
|
||||||
|
<source bridge='xenbr0'/>
|
||||||
|
<mac address='aa:00:00:00:00:11'/>
|
||||||
|
<script path='/etc/xen/scripts/vif-bridge'/>
|
||||||
|
</interface>
|
||||||
|
<console tty='/dev/pts/5'/>
|
||||||
|
</devices>
|
||||||
|
</domain>
|
||||||
|
|
||||||
|
Paravirtualized guest direct kernel boot
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
For installation of paravirtualized guests it is typical to boot the domain
|
||||||
|
using a kernel and initrd stored in the host OS
|
||||||
|
|
||||||
|
::
|
||||||
|
|
||||||
|
<domain type='xen' >
|
||||||
|
<name>fc8</name>
|
||||||
|
<os>
|
||||||
|
<type>linux</type>
|
||||||
|
<kernel>/var/lib/xen/install/vmlinuz-fedora8-x86_64</kernel>
|
||||||
|
<initrd>/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64</initrd>
|
||||||
|
<cmdline> kickstart=http://example.com/myguest.ks </cmdline>
|
||||||
|
</os>
|
||||||
|
<memory>131072</memory>
|
||||||
|
<vcpu>1</vcpu>
|
||||||
|
<devices>
|
||||||
|
<disk type='file'>
|
||||||
|
<source file='/var/lib/xen/images/fc4.img'/>
|
||||||
|
<target dev='sda1'/>
|
||||||
|
</disk>
|
||||||
|
<interface type='bridge'>
|
||||||
|
<source bridge='xenbr0'/>
|
||||||
|
<mac address='aa:00:00:00:00:11'/>
|
||||||
|
<script path='/etc/xen/scripts/vif-bridge'/>
|
||||||
|
</interface>
|
||||||
|
<graphics type='vnc' port='-1'/>
|
||||||
|
<console tty='/dev/pts/5'/>
|
||||||
|
</devices>
|
||||||
|
</domain>
|
||||||
|
|
||||||
|
Fullyvirtualized guest BIOS boot
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
Fullyvirtualized guests use the emulated BIOS to boot off the primary harddisk,
|
||||||
|
CDROM or Network PXE ROM.
|
||||||
|
|
||||||
|
::
|
||||||
|
|
||||||
|
<domain type='xen' id='3'>
|
||||||
|
<name>fv0</name>
|
||||||
|
<uuid>4dea22b31d52d8f32516782e98ab3fa0</uuid>
|
||||||
|
<os>
|
||||||
|
<type>hvm</type>
|
||||||
|
<loader>/usr/lib/xen/boot/hvmloader</loader>
|
||||||
|
<boot dev='hd'/>
|
||||||
|
</os>
|
||||||
|
<memory>524288</memory>
|
||||||
|
<vcpu>1</vcpu>
|
||||||
|
<on_poweroff>destroy</on_poweroff>
|
||||||
|
<on_reboot>restart</on_reboot>
|
||||||
|
<on_crash>restart</on_crash>
|
||||||
|
<features>
|
||||||
|
<pae/>
|
||||||
|
<acpi/>
|
||||||
|
<apic/>
|
||||||
|
</features>
|
||||||
|
<clock sync="localtime"/>
|
||||||
|
<devices>
|
||||||
|
<emulator>/usr/lib/xen/bin/qemu-dm</emulator>
|
||||||
|
<interface type='bridge'>
|
||||||
|
<source bridge='xenbr0'/>
|
||||||
|
<mac address='00:16:3e:5d:c7:9e'/>
|
||||||
|
<script path='vif-bridge'/>
|
||||||
|
</interface>
|
||||||
|
<disk type='file'>
|
||||||
|
<source file='/var/lib/xen/images/fv0'/>
|
||||||
|
<target dev='hda'/>
|
||||||
|
</disk>
|
||||||
|
<disk type='file' device='cdrom'>
|
||||||
|
<source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/>
|
||||||
|
<target dev='hdc'/>
|
||||||
|
<readonly/>
|
||||||
|
</disk>
|
||||||
|
<disk type='file' device='floppy'>
|
||||||
|
<source file='/root/fd.img'/>
|
||||||
|
<target dev='fda'/>
|
||||||
|
</disk>
|
||||||
|
<graphics type='vnc' port='5904'/>
|
||||||
|
</devices>
|
||||||
|
</domain>
|
||||||
|
|
||||||
|
Fullyvirtualized guest direct kernel boot
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
With Xen 3.2.0 or later it is possible to bypass the BIOS and directly boot a
|
||||||
|
Linux kernel and initrd as a fullyvirtualized domain. This allows for complete
|
||||||
|
automation of OS installation, for example using the Anaconda kickstart support.
|
||||||
|
|
||||||
|
::
|
||||||
|
|
||||||
|
<domain type='xen' id='3'>
|
||||||
|
<name>fv0</name>
|
||||||
|
<uuid>4dea22b31d52d8f32516782e98ab3fa0</uuid>
|
||||||
|
<os>
|
||||||
|
<type>hvm</type>
|
||||||
|
<loader>/usr/lib/xen/boot/hvmloader</loader>
|
||||||
|
<kernel>/var/lib/xen/install/vmlinuz-fedora8-x86_64</kernel>
|
||||||
|
<initrd>/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64</initrd>
|
||||||
|
<cmdline> kickstart=http://example.com/myguest.ks </cmdline>
|
||||||
|
</os>
|
||||||
|
<memory>524288</memory>
|
||||||
|
<vcpu>1</vcpu>
|
||||||
|
<on_poweroff>destroy</on_poweroff>
|
||||||
|
<on_reboot>restart</on_reboot>
|
||||||
|
<on_crash>restart</on_crash>
|
||||||
|
<features>
|
||||||
|
<pae/>
|
||||||
|
<acpi/>
|
||||||
|
<apic/>
|
||||||
|
</features>
|
||||||
|
<clock sync="localtime"/>
|
||||||
|
<devices>
|
||||||
|
<emulator>/usr/lib/xen/bin/qemu-dm</emulator>
|
||||||
|
<interface type='bridge'>
|
||||||
|
<source bridge='xenbr0'/>
|
||||||
|
<mac address='00:16:3e:5d:c7:9e'/>
|
||||||
|
<script path='vif-bridge'/>
|
||||||
|
</interface>
|
||||||
|
<disk type='file'>
|
||||||
|
<source file='/var/lib/xen/images/fv0'/>
|
||||||
|
<target dev='hda'/>
|
||||||
|
</disk>
|
||||||
|
<disk type='file' device='cdrom'>
|
||||||
|
<source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/>
|
||||||
|
<target dev='hdc'/>
|
||||||
|
<readonly/>
|
||||||
|
</disk>
|
||||||
|
<disk type='file' device='floppy'>
|
||||||
|
<source file='/root/fd.img'/>
|
||||||
|
<target dev='fda'/>
|
||||||
|
</disk>
|
||||||
|
<graphics type='vnc' port='5904'/>
|
||||||
|
</devices>
|
||||||
|
</domain>
|
||||||
@ -8352,5 +8352,5 @@ Example configs
|
|||||||
Example configurations for each driver are provide on the driver specific pages
|
Example configurations for each driver are provide on the driver specific pages
|
||||||
listed below
|
listed below
|
||||||
|
|
||||||
- `Xen examples <drvxen.html#xmlconfig>`__
|
- `Xen examples <drvxen.html#example-domain-xml-config>`__
|
||||||
- `QEMU/KVM examples <drvqemu.html#example-domain-xml-config>`__
|
- `QEMU/KVM examples <drvqemu.html#example-domain-xml-config>`__
|
||||||
|
|||||||
@ -22,7 +22,6 @@ docs_html_in_files = [
|
|||||||
'csharp',
|
'csharp',
|
||||||
'dbus',
|
'dbus',
|
||||||
'docs',
|
'docs',
|
||||||
'drvxen',
|
|
||||||
'firewall',
|
'firewall',
|
||||||
'format',
|
'format',
|
||||||
'formatcaps',
|
'formatcaps',
|
||||||
@ -81,6 +80,7 @@ docs_rst_files = [
|
|||||||
'drvvbox',
|
'drvvbox',
|
||||||
'drvvirtuozzo',
|
'drvvirtuozzo',
|
||||||
'drvvmware',
|
'drvvmware',
|
||||||
|
'drvxen',
|
||||||
'errors',
|
'errors',
|
||||||
'formatbackup',
|
'formatbackup',
|
||||||
'formatcheckpoint',
|
'formatcheckpoint',
|
||||||
|
|||||||
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