| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY qemu-download-http "http://download.qemu-project.org/qemu-&qemu-version;.tar.xz">
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| 8 | <!ENTITY qemu-download-ftp " ">
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| 9 | <!ENTITY qemu-md5sum "6e830a88e36908d9563ed01131ce72ec">
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| 10 | <!ENTITY qemu-size "34 MB">
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| 11 | <!ENTITY qemu-buildsize "646 MB (add 276 MB for tests)">
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| 12 | <!ENTITY qemu-time "0.7 SBU (using parallelism=4; add 1.7 SBU for tests)">
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| 13 | ]>
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| 14 |
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| 15 | <sect1 id="qemu" xreflabel="qemu-&qemu-version;">
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| 16 | <?dbhtml filename="qemu.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>qemu-&qemu-version;</title>
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| 24 |
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| 25 | <indexterm zone="qemu">
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| 26 | <primary sortas="a-qemu">qemu</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to qemu</title>
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| 31 |
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| 32 | <para><application>qemu</application> is a full virtualization solution
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| 33 | for Linux on x86 hardware containing virtualization extensions (Intel VT or
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| 34 | AMD-V).</para>
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| 35 |
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| 36 | &lfs82_checked;
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| 37 |
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| 38 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 39 | <itemizedlist spacing="compact">
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| 40 | <listitem>
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| 41 | <para>Download (HTTP): <ulink url="&qemu-download-http;"/></para>
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| 42 | </listitem>
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| 43 | <listitem>
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| 44 | <para>Download (FTP): <ulink url="&qemu-download-ftp;"/></para>
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| 45 | </listitem>
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| 46 | <listitem>
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| 47 | <para>Download MD5 sum: &qemu-md5sum;</para>
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| 48 | </listitem>
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| 49 | <listitem>
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| 50 | <para>Download size: &qemu-size;</para>
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| 51 | </listitem>
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| 52 | <listitem>
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| 53 | <para>Estimated disk space required: &qemu-buildsize;</para>
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| 54 | </listitem>
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| 55 | <listitem>
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| 56 | <para>Estimated build time: &qemu-time;</para>
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| 57 | </listitem>
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| 58 | </itemizedlist>
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| 59 |
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| 60 | <bridgehead renderas="sect3">Qemu Dependencies</bridgehead>
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| 61 |
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| 62 | <bridgehead renderas="sect4">Required</bridgehead>
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| 63 | <para role="required">
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| 64 | <xref linkend="glib2"/>,
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| 65 | <xref linkend="python2"/>, and
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| 66 | <xref linkend="x-window-system"/>
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| 67 | </para>
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| 68 |
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| 69 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 70 | <para role="recommended">
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| 71 | <xref linkend="alsa-lib"/> and
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| 72 | <xref linkend="sdl2"/>
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| 73 | </para>
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| 74 |
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| 75 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 76 | <para role="optional">
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| 77 | Depending on the sound system, various packages in <xref linkend="alsa"/>,
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| 78 | <xref linkend="pulseaudio"/>,
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| 79 | <xref linkend="bluez"/>,
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| 80 | <xref linkend="curl"/>,
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| 81 | <xref linkend="cyrus-sasl"/>,
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| 82 | <xref linkend="gnutls"/>,
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| 83 | <xref linkend="gtk2"/>,
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| 84 | <xref linkend="gtk3"/>,
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| 85 | <xref linkend="libusb"/>,
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| 86 | <xref linkend="libgcrypt"/>,
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| 87 | <xref linkend="libssh2"/>,
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| 88 | <xref linkend="lzo"/>,
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| 89 | <xref linkend="nettle"/>,
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| 90 | <xref linkend="mesa"/>,
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| 91 | <xref linkend="sdl"/>,
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| 92 | <xref linkend="vte"/> or <xref linkend="vte2"/>, and
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| 93 | <!-- libcacard has been a standalone project since qemu-2.5.-->
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| 94 | <ulink url="https://www.spice-space.org/page/Libcacard">libcacard</ulink>
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| 95 | </para>
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| 96 |
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| 97 | <note>
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| 98 | <para>
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| 99 | This optional dependencies list is not comprehensive. See the output of
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| 100 | <command>./configure --help</command> for a more complete list.
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| 101 | </para>
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| 102 | </note>
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| 103 |
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| 104 | <para condition="html" role="usernotes">User Notes:
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| 105 | <ulink url="&blfs-wiki;/qemu"/></para>
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| 106 |
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| 107 | </sect2>
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| 108 |
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| 109 | <sect2 id='qemu-prereq'>
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| 110 | <title>KVM Prerequisites</title>
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| 111 |
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| 112 | <para>Before building <application>qemu</application>, check to see if
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| 113 | your processor supports Virtualization Technology (VT):</para>
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| 114 |
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| 115 | <screen><userinput>egrep '^flags.*(vmx|svm)' /proc/cpuinfo</userinput></screen>
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| 116 |
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| 117 | <para>If you get any output, you have VT technology (vmx for Intel
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| 118 | processors and svm for AMD processors). You then need to go into your
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| 119 | system BIOS and ensure it is enabled. After enabing, reboot back to your
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| 120 | LFS instance.</para>
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| 121 |
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| 122 | </sect2>
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| 123 |
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| 124 | <sect2 role="kernel" id='qemu-kernel'>
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| 125 | <title>Kernel Configuration</title>
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| 126 |
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| 127 | <para>Enable the following options in the kernel configuration and
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| 128 | recompile the kernel if necessary:</para>
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| 129 |
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| 130 | <screen><literal>[*] Virtualization: ---> [CONFIG_VIRTUALIZATION]
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| 131 | <*/M> Kernel-based Virtual Machine (KVM) support [CONFIG_KVM]
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| 132 | <*/M> KVM for Intel processors support [CONFIG_KVM_INTEL]
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| 133 | <*/M> KVM for AMD processors support [CONFIG_KVM_AMD]</literal></screen>
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| 134 |
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| 135 | <indexterm zone="qemu qemu-kernel">
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| 136 | <primary sortas="d-qemu">qemu</primary>
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| 137 | </indexterm>
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| 138 |
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| 139 | <para>The Intel or AMD settings are not both required, but the one matching
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| 140 | your system processor is required.</para>
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| 141 |
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| 142 | <para>
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| 143 | To use the <quote>bridge</quote> network device, as explained below,
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| 144 | check that <xref linkend='bridgeutils'/> is installed
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| 145 | and the following options in the kernel configuration are enabled:
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| 146 | </para>
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| 147 |
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| 148 | <screen><literal>[*] Networking support ---> [CONFIG_NET]
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| 149 | Networking options --->
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| 150 | <*/M> 802.1d Ethernet Bridging [CONFIG_BRIDGE]
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| 151 | Device Drivers --->
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| 152 | [*] Network device support ---> [CONFIG_NETDEVICES]
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| 153 | <*/M> Universal TUN/TAP device driver support [CONFIG_TUN]</literal></screen>
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| 154 |
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| 155 | </sect2>
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| 156 |
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| 157 | <sect2 role="installation">
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| 158 | <title>Installation of qemu</title>
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| 159 |
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| 160 | <para revision="sysv">
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| 161 | You will need a dedicated group that will contain users (other than root)
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| 162 | allowed to access the KVM device. Create this group by running the
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| 163 | following command as the
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| 164 | <systemitem class="username">root</systemitem> user:
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| 165 | </para>
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| 166 |
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| 167 | <screen role="root" revision="sysv"><userinput>groupadd -g 61 kvm</userinput></screen>
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| 168 |
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| 169 | <para>
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| 170 | Add any users that might use the KVM device to that group:
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| 171 | </para>
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| 172 |
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| 173 | <screen role="root"><userinput>usermod -a -G kvm <replaceable><username></replaceable></userinput></screen>
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| 174 |
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| 175 | <para>Install <application>qemu</application> by running the following
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| 176 | commands:</para>
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| 177 |
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| 178 | <note><para>Qemu is capable of running many targets. The build process
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| 179 | is also capable of building multiple targets at one time in a
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| 180 | comma delimited list assigned to <option>--target-list</option>. Run
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| 181 | <command>./configure --help</command> to get a complete list of
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| 182 | available targets.</para></note>
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| 183 |
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| 184 |
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| 185 | <screen><userinput>if [ $(uname -m) = i686 ]; then
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| 186 | QEMU_ARCH=i386-softmmu
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| 187 | else
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| 188 | QEMU_ARCH=x86_64-softmmu
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| 189 | fi
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| 190 |
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| 191 |
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| 192 | mkdir -vp build &&
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| 193 | cd build &&
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| 194 |
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| 195 | ../configure --prefix=/usr \
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| 196 | --sysconfdir=/etc \
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| 197 | --target-list=$QEMU_ARCH \
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| 198 | --audio-drv-list=alsa \
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| 199 | --with-sdlabi=2.0 \
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| 200 | --docdir=/usr/share/doc/qemu-&qemu-version; &&
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| 201 |
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| 202 | unset QEMU_ARCH &&
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| 203 |
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| 204 | make</userinput></screen>
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| 205 |
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| 206 | <para>
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| 207 | To run the built in tests, run <command>make V=1 -k check</command>.
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| 208 | </para>
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| 209 |
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| 210 | <para>
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| 211 | Now, as the <systemitem class="username">root</systemitem> user:
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| 212 | </para>
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| 213 |
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| 214 | <screen role="root"><userinput>make install</userinput></screen>
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| 215 |
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| 216 | <para>
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| 217 | You will also need to add an Udev rule so that the KVM device gets correct
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| 218 | permissions:
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| 219 | </para>
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| 220 |
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| 221 | <screen role="root"><userinput>cat > /lib/udev/rules.d/65-kvm.rules << "EOF"
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| 222 | <literal>KERNEL=="kvm", GROUP="kvm", MODE="0660"</literal>
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| 223 | EOF</userinput></screen>
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| 224 |
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| 225 | <para>
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| 226 | Change the permissions and ownership of a helper script, which is needed
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| 227 | when using the <quote>bridge</quote> network device (see below):
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| 228 | </para>
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| 229 |
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| 230 | <screen role="root"><userinput>chgrp kvm /usr/libexec/qemu-bridge-helper &&
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| 231 | chmod 4750 /usr/libexec/qemu-bridge-helper</userinput></screen>
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| 232 |
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| 233 | <note>
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| 234 | <para>For convenience you may want to create a symbolic link to run
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| 235 | the installed program. For instance:</para>
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| 236 |
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| 237 | <screen role="root"><userinput>ln -sv qemu-system-`uname -m` /usr/bin/qemu</userinput></screen>
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| 238 | </note>
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| 239 |
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| 240 | </sect2>
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| 241 |
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| 242 | <sect2 role="commands">
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| 243 | <title>Command Explanations</title>
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| 244 |
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| 245 | <para>
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| 246 | <command>sed ... util/memfd.c</command>: This command fixes a conflict
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| 247 | introduced with glibc-2.27.
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| 248 | </para>
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| 249 |
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| 250 | <para>
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| 251 | <parameter>--audio-drv-list=alsa</parameter>: This switch sets the audio
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| 252 | driver to ALSA. For other drivers see the --audio-drv-list list in
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| 253 | <command>configure</command>'s help output. The default audio driver is
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| 254 | OSS. To enable support for alsa and pulseaudio, use <parameter>--audio-drv-list=alsa,pa</parameter>
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| 255 | </para>
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| 256 |
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| 257 | <para>
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| 258 | <parameter>--audio-drv-list=pa</parameter>: This switch sets the audio
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| 259 | driver to pulseaudio. For other drivers see the --audio-drv-list list in
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| 260 | <command>configure</command>'s help output. The default audio driver is
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| 261 | OSS.
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| 262 | </para>
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| 263 |
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| 264 | <para>
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| 265 | <parameter>--with-sdlabi=2.0</parameter>: Chooses to build with SDL-2 if
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| 266 | both SDL and SDL-2 are installed.
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| 267 | </para>
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| 268 |
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| 269 | <para>
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| 270 | <option>--with-gtkabi=3.0</option>: builds with GTK+-3 if both GTK+-2
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| 271 | and GTK+-3 are installed.
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| 272 | </para>
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| 273 |
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| 274 | </sect2>
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| 275 |
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| 276 | <sect2 role="using">
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| 277 | <title>Using Qemu</title>
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| 278 |
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| 279 | <para>
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| 280 | Since using qemu means using a virtual computer, the steps to set up
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| 281 | the virtual machine are in close analogy with those to set up a real
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| 282 | computer. You'll need to decide about CPU, memory, disk, USB devices,
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| 283 | network card(s), screen size, etc. Once the <quote>hardware</quote> is
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| 284 | decided, you'll have for example to choose how to connect the machine
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| 285 | to internet, and/or to install an OS. In the following, we show basic
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| 286 | ways of performing those steps. But qemu is much more than this, and it
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| 287 | is strongly advised to read the qemu documentation in
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| 288 | <filename>/usr/share/doc/qemu-&qemu-version;/qemu-doc.html</filename>.
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| 289 | </para>
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| 290 |
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| 291 | <note>
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| 292 | <para>
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| 293 | It is standard practice to name the computer running qemu
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| 294 | <quote>host</quote> and the emulated machine running under qemu the
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| 295 | <quote>guest</quote>. We'll use those notations in the following.
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| 296 | </para>
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| 297 | </note>
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| 298 |
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| 299 | <note>
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| 300 | <para>
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| 301 | The following instructions assume the optional symbolic link,
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| 302 | <filename>qemu</filename>, has been created. Additionally,
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| 303 | <command>qemu</command> must be run from an X Window System based
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| 304 | terminal (either locally or over ssh).
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| 305 | </para>
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| 306 | </note>
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| 307 |
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| 308 | <bridgehead renderas="sect3">Disk</bridgehead>
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| 309 | <para>
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| 310 | A virtual disk may be set up in the following way:
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| 311 | </para>
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| 312 |
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| 313 | <screen><userinput>VDISK_SIZE=<replaceable>50G</replaceable>
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| 314 | VDISK_FILENAME=<replaceable>vdisk.img</replaceable>
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| 315 | qemu-img create -f qcow2 $VDISK_FILENAME $VDISK_SIZE</userinput></screen>
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| 316 |
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| 317 | <para>
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| 318 | The virtual disk size and filename should be ajusted as desired. The
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| 319 | actual size of the file will be less than specified, but will expand as
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| 320 | needed, so it is safe to put a high value.
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| 321 | </para>
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| 322 |
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| 323 | <bridgehead renderas="sect3">Operating System</bridgehead>
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| 324 | <para>
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| 325 | To install an operating system, download an iso image from your preferred
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| 326 | Linux distribution. For the purposes of this example, we'll use
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| 327 | <filename>Fedora-16-x86_64-Live-LXDE.iso</filename> in the current
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| 328 | directory. Run the following:
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| 329 | </para>
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| 330 |
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| 331 | <screen><userinput>qemu -enable-kvm \
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| 332 | -drive file=$VDISK_FILENAME \
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| 333 | -cdrom Fedora-16-x86_64-Live-LXDE.iso \
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| 334 | -boot d \
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| 335 | -m <replaceable>1G</replaceable></userinput></screen>
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| 336 |
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| 337 | <para>
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| 338 | Follow the normal installation procedures for the chosen distribution.
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| 339 | The <parameter>-boot</parameter> option specifies the boot order of
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| 340 | drives as a string of drive letters. Valid drive letters are: a, b
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| 341 | (floppy 1 and 2), c (first hard disk), d (first CD-ROM). The
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| 342 | <parameter>-m</parameter> option is the amount of memory to use for the
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| 343 | virtual machine. The choice depends on the load of the host. Modern
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| 344 | distributions should be comfortable with 1GB.
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| 345 | The <parameter>-enable-kvm</parameter> option allows hardware
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| 346 | acceleration. Without this switch, the emulation is much slower.
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| 347 | </para>
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| 348 |
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| 349 | <bridgehead renderas="sect3">Defining the virtual hardware</bridgehead>
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| 350 | <para>
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| 351 | The virtual machine hardware is defined by the qemu command line.
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| 352 | An example command is given below:
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| 353 | </para>
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| 354 |
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| 355 | <screen><userinput>qemu -enable-kvm \
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| 356 | -smp 4 \
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| 357 | -cpu host \
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| 358 | -m 1G \
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| 359 | -drive file=$VDISK_FILENAME \
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| 360 | -cdrom grub-img.iso \
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| 361 | -boot order=c,once=d,menu=on \
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| 362 | -net nic,netdev=net0 \
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| 363 | -netdev user,id=net0 \
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| 364 | -soundhw ac97 \
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| 365 | -vga std \
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| 366 | -serial mon:stdio \
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| 367 | -name "fedora-16"</userinput></screen>
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| 368 |
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| 369 | <bridgehead renderas="sect3">Meaning of the command line options</bridgehead>
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| 370 | <para>
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| 371 | <parameter>-enable-kvm</parameter>: enable full KVM virtualization
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| 372 | support. On some hardware, it may be necessary to add the undocumented
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| 373 | <option>-machine smm=off</option> option in order to enable KVM.
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| 374 | </para>
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| 375 |
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| 376 | <para>
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| 377 | <parameter>-smp <N></parameter>: enable symmetric multiprocessing
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| 378 | with <N> CPUs.
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| 379 | </para>
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| 380 |
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| 381 | <para>
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| 382 | <parameter>-cpu <model></parameter>: simulate CPU <model>.
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| 383 | the list of supported models can be obtained with <option>-cpu
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| 384 | help</option>.
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| 385 | </para>
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| 386 |
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| 387 | <para>
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| 388 | <parameter>-drive file=<filename></parameter>: defines a virtual
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| 389 | disk whose image is stored in <filename><filename></filename>.
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|---|
| 390 | </para>
|
|---|
| 391 |
|
|---|
| 392 | <para>
|
|---|
| 393 | <parameter>-cdrom grub-img.iso</parameter>: defines an iso formated file
|
|---|
| 394 | to use as a cdrom. Here we use a grub rescue disk, which may turn handy
|
|---|
| 395 | when something goes wrong at boot time.
|
|---|
| 396 | </para>
|
|---|
| 397 |
|
|---|
| 398 | <para>
|
|---|
| 399 | <parameter>-boot order=c,once=d,menu=on</parameter>: defines the boot
|
|---|
| 400 | order for the virtual BIOS.
|
|---|
| 401 | </para>
|
|---|
| 402 |
|
|---|
| 403 | <para>
|
|---|
| 404 | <parameter>-net nic,netdev=<netid></parameter>: defines a network
|
|---|
| 405 | card connected to the network device with id <netid>.
|
|---|
| 406 | </para>
|
|---|
| 407 |
|
|---|
| 408 | <para>
|
|---|
| 409 | <parameter>-netdev user,id=<netid></parameter>: defines the
|
|---|
| 410 | network <quote>user</quote> device. This is a virtual local network
|
|---|
| 411 | with addresses 10.0.2.0/24, where the host has address 10.0.2.2 and
|
|---|
| 412 | acts as a gateway to internet, and with a name server at address
|
|---|
| 413 | 10.0.2.3, and an smb server at address 10.0.2.4. A builtin DHCP server
|
|---|
| 414 | can allocate addresses between 10.0.2.15 and 10.0.2.31.
|
|---|
| 415 | </para>
|
|---|
| 416 |
|
|---|
| 417 | <para>
|
|---|
| 418 | <parameter>-soundhw <model></parameter>: defines the soundcard
|
|---|
| 419 | model. The list may be obtained with <option>-soundhw help</option>.
|
|---|
| 420 | </para>
|
|---|
| 421 |
|
|---|
| 422 | <para>
|
|---|
| 423 | <parameter>-vga <type></parameter>: defines the type of vga card
|
|---|
| 424 | to emulate.
|
|---|
| 425 | </para>
|
|---|
| 426 |
|
|---|
| 427 | <para>
|
|---|
| 428 | <parameter>-serial mon:stdio</parameter>: sends the serial port of the
|
|---|
| 429 | guest (<filename>/dev/ttyS0</filename> on linux guests), multiplexed with
|
|---|
| 430 | the qemu monitor, to the standard input and output of the qemu
|
|---|
| 431 | process.
|
|---|
| 432 | </para>
|
|---|
| 433 |
|
|---|
| 434 | <para>
|
|---|
| 435 | <parameter>-name <name></parameter>: sets the name of the guest.
|
|---|
| 436 | This name is displayed in the guest window caption. It may be useful
|
|---|
| 437 | if you run several guests at the same time.
|
|---|
| 438 | </para>
|
|---|
| 439 |
|
|---|
| 440 | <bridgehead renderas="sect3">Controlling the Emulated Display</bridgehead>
|
|---|
| 441 | <para>
|
|---|
| 442 | It may happen that the guest window displayed by qemu does not correspond
|
|---|
| 443 | to the full capability of the emulated vga card. For example, the vmware
|
|---|
| 444 | card is 1600x900 capable, but only 1024x768 is displayed by default.
|
|---|
| 445 | A suitable Xorg configuration on the guest allows to use the full size
|
|---|
| 446 | (Note that the Xorg video driver to use is <xref
|
|---|
| 447 | linkend="xorg-vmware-driver"/>):
|
|---|
| 448 | </para>
|
|---|
| 449 |
|
|---|
| 450 | <screen role="root"><userinput>cat > /usr/share/X11/xorg.conf.d/20-vmware.conf << "EOF"
|
|---|
| 451 | <literal>Section "Monitor"
|
|---|
| 452 | Identifier "Monitor0"
|
|---|
| 453 | # cvt 1600 900
|
|---|
| 454 | # 1600x900 59.95 Hz (CVT 1.44M9) hsync: 55.99 kHz; pclk: 118.25 MHz
|
|---|
| 455 | Modeline "1600x900" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync
|
|---|
| 456 | Option "PreferredMode" "1600x900"
|
|---|
| 457 | HorizSync 1-200
|
|---|
| 458 | VertRefresh 1-200
|
|---|
| 459 | EndSection
|
|---|
| 460 |
|
|---|
| 461 | Section "Device"
|
|---|
| 462 | Identifier "VMware SVGA II Adapter"
|
|---|
| 463 | Option "Monitor" "default"
|
|---|
| 464 | Driver "vmware"
|
|---|
| 465 | EndSection
|
|---|
| 466 |
|
|---|
| 467 | Section "Screen"
|
|---|
| 468 | Identifier "Default Screen"
|
|---|
| 469 | Device "VMware SVGA II Adapter"
|
|---|
| 470 | Monitor "Monitor0"
|
|---|
| 471 |
|
|---|
| 472 | SubSection "Display"
|
|---|
| 473 | Depth 24
|
|---|
| 474 | Modes "1600x900" "1440x900" "1366x768" "1280x720" "800x480"
|
|---|
| 475 | EndSubSection
|
|---|
| 476 |
|
|---|
| 477 | EndSection</literal>
|
|---|
| 478 | EOF</userinput></screen>
|
|---|
| 479 |
|
|---|
| 480 | <para>
|
|---|
| 481 | New sizes will be available besides the native ones. You need to
|
|---|
| 482 | restart X in order to have the new sizes available.
|
|---|
| 483 | </para>
|
|---|
| 484 |
|
|---|
| 485 | <bridgehead renderas="sect3">Networking</bridgehead>
|
|---|
| 486 | <para>
|
|---|
| 487 | The above solution for networking allows the guest to access the local
|
|---|
| 488 | network through the host (and possibly to access internet through the
|
|---|
| 489 | local routers), but the converse is not true. Not even the host can
|
|---|
| 490 | access the guest, unless port forwarding is enabled. And in the case
|
|---|
| 491 | several guests are running, they cannot communicate with each other.
|
|---|
| 492 | Other network devices can be used for this purpose. For example, there
|
|---|
| 493 | is the <quote>socket</quote> device, which allows several guests to
|
|---|
| 494 | share a common virtual network. In the following, we describe in more
|
|---|
| 495 | details how to set up the <quote>bridge</quote> device, which allows
|
|---|
| 496 | the guests to appear as if connected to the local network. All the
|
|---|
| 497 | commands below should be run as the <systemitem
|
|---|
| 498 | class="username">root</systemitem> user.
|
|---|
| 499 | </para>
|
|---|
| 500 |
|
|---|
| 501 | <para revision="sysv">
|
|---|
| 502 | Set up bridging with <xref linkend="bridgeutils"/>. Only the physical
|
|---|
| 503 | interface(s) should be set up at boot. The virtual interface(s) will be
|
|---|
| 504 | added as needed when qemu is started.
|
|---|
| 505 | </para>
|
|---|
| 506 | <!-- Place holder for systemd: bridgeutils page does not have configuration
|
|---|
| 507 | information for systemd:
|
|---|
| 508 | <para revision="systemd">
|
|---|
| 509 | TODO
|
|---|
| 510 | </para>-->
|
|---|
| 511 |
|
|---|
| 512 | <para revision="systemd"><!-- On SYS-V, IP_FORWARD is enabled by the
|
|---|
| 513 | bridge script. -->
|
|---|
| 514 | Allow the host to forward IP packets:
|
|---|
| 515 | </para>
|
|---|
| 516 |
|
|---|
| 517 | <screen role="root"
|
|---|
| 518 | revision="systemd"><userinput>sysctl -w net.ipv4.ip_forward=1</userinput></screen>
|
|---|
| 519 |
|
|---|
| 520 | <para revision="systemd">
|
|---|
| 521 | To make this permanent, add the command to
|
|---|
| 522 | <filename>/etc/sysctl.d/60-net-forward.conf:</filename>
|
|---|
| 523 | </para>
|
|---|
| 524 |
|
|---|
| 525 | <screen role="root"
|
|---|
| 526 | revision="systemd"><userinput>cat >> /etc/sysctl.d/60-net-forward.conf << EOF
|
|---|
| 527 | net.ipv4.ip_forward=1
|
|---|
| 528 | EOF</userinput></screen>
|
|---|
| 529 |
|
|---|
| 530 | <para>
|
|---|
| 531 | Set up a required configuration file:
|
|---|
| 532 | </para>
|
|---|
| 533 |
|
|---|
| 534 | <!-- /etc/qemu has not been installed by "make install" since version 2.4 -->
|
|---|
| 535 | <screen role="root"><userinput>install -vdm 755 /etc/qemu &&
|
|---|
| 536 | echo allow br0 > /etc/qemu/bridge.conf</userinput></screen>
|
|---|
| 537 |
|
|---|
| 538 | <para>
|
|---|
| 539 | In the command above, replace the switch <parameter>-netdev user,...
|
|---|
| 540 | </parameter> with <parameter>-netdev bridge,id=net0</parameter>.
|
|---|
| 541 | </para>
|
|---|
| 542 |
|
|---|
| 543 | </sect2>
|
|---|
| 544 |
|
|---|
| 545 | <sect2 role="content">
|
|---|
| 546 | <title>Contents</title>
|
|---|
| 547 |
|
|---|
| 548 | <segmentedlist>
|
|---|
| 549 | <segtitle>Installed Programs</segtitle>
|
|---|
| 550 | <segtitle>Installed Library</segtitle>
|
|---|
| 551 | <segtitle>Installed Directories</segtitle>
|
|---|
| 552 |
|
|---|
| 553 | <seglistitem>
|
|---|
| 554 | <seg>
|
|---|
| 555 | ivshmem-client,
|
|---|
| 556 | ivshmem-server,
|
|---|
| 557 | qemu (symlink),
|
|---|
| 558 | qemu-ga,
|
|---|
| 559 | qemu-img,
|
|---|
| 560 | qemu-io,
|
|---|
| 561 | qemu-nbd,
|
|---|
| 562 | qemu-system-<arch>, and
|
|---|
| 563 | virtfs-proxy-helper
|
|---|
| 564 | </seg>
|
|---|
| 565 | <seg>None</seg>
|
|---|
| 566 | <seg>
|
|---|
| 567 | /usr/share/qemu and
|
|---|
| 568 | /usr/share/doc/qemu-&qemu-version;
|
|---|
| 569 | </seg>
|
|---|
| 570 | </seglistitem>
|
|---|
| 571 | </segmentedlist>
|
|---|
| 572 |
|
|---|
| 573 | <variablelist>
|
|---|
| 574 | <bridgehead renderas="sect3">Short Description</bridgehead>
|
|---|
| 575 | <?dbfo list-presentation="list"?>
|
|---|
| 576 | <?dbhtml list-presentation="table"?>
|
|---|
| 577 |
|
|---|
| 578 | <varlistentry id="ivshmem-client">
|
|---|
| 579 | <term><command>ivshmem-client</command></term>
|
|---|
| 580 | <listitem>
|
|---|
| 581 | <para>is a standalone client for using the ivshmem device.</para>
|
|---|
| 582 | <indexterm zone="qemu ivshmem-client">
|
|---|
| 583 | <primary sortas="b-ivshmem-client">ivshmem-client</primary>
|
|---|
| 584 | </indexterm>
|
|---|
| 585 | </listitem>
|
|---|
| 586 | </varlistentry>
|
|---|
| 587 |
|
|---|
| 588 | <varlistentry id="ivshmem-server">
|
|---|
| 589 | <term><command>ivshmem-server</command></term>
|
|---|
| 590 | <listitem>
|
|---|
| 591 | <para>is an example server for the ivshmem device.</para>
|
|---|
| 592 | <indexterm zone="qemu ivshmem-server">
|
|---|
| 593 | <primary sortas="b-ivshmem-server">ivshmem-server</primary>
|
|---|
| 594 | </indexterm>
|
|---|
| 595 | </listitem>
|
|---|
| 596 | </varlistentry>
|
|---|
| 597 |
|
|---|
| 598 | <varlistentry id="qemu-ga">
|
|---|
| 599 | <term><command>qemu-ga</command></term>
|
|---|
| 600 | <listitem>
|
|---|
| 601 | <para>implements support for QMP (QEMU Monitor Protocol) commands and
|
|---|
| 602 | events that terminate and originate respectively within the guest
|
|---|
| 603 | using an agent built as part of QEMU.</para>
|
|---|
| 604 | <indexterm zone="qemu qemu-ga">
|
|---|
| 605 | <primary sortas="b-qemu-ga">qemu-ga</primary>
|
|---|
| 606 | </indexterm>
|
|---|
| 607 | </listitem>
|
|---|
| 608 | </varlistentry>
|
|---|
| 609 |
|
|---|
| 610 | <varlistentry id="qemu-img">
|
|---|
| 611 | <term><command>qemu-img</command></term>
|
|---|
| 612 | <listitem>
|
|---|
| 613 | <para>provides commands to manage QEMU disk images.</para>
|
|---|
| 614 | <indexterm zone="qemu qemu-img">
|
|---|
| 615 | <primary sortas="b-qemu-img">qemu-img</primary>
|
|---|
| 616 | </indexterm>
|
|---|
| 617 | </listitem>
|
|---|
| 618 | </varlistentry>
|
|---|
| 619 |
|
|---|
| 620 | <varlistentry id="qemu-io">
|
|---|
| 621 | <term><command>qemu-io</command></term>
|
|---|
| 622 | <listitem>
|
|---|
| 623 | <para>is a diagnostic and manipulation program for (virtual) memory
|
|---|
| 624 | media. It is still at an early stage of development.</para>
|
|---|
| 625 | <indexterm zone="qemu qemu-io">
|
|---|
| 626 | <primary sortas="b-qemu-io">qemu-io</primary>
|
|---|
| 627 | </indexterm>
|
|---|
| 628 | </listitem>
|
|---|
| 629 | </varlistentry>
|
|---|
| 630 |
|
|---|
| 631 | <varlistentry id="qemu-nbd">
|
|---|
| 632 | <term><command>qemu-nbd</command></term>
|
|---|
| 633 | <listitem>
|
|---|
| 634 | <para>exports Qemu disk images using the QEMU Disk Network Block
|
|---|
| 635 | Device (NBD) protocol.</para>
|
|---|
| 636 | <indexterm zone="qemu qemu-nbd">
|
|---|
| 637 | <primary sortas="b-qemu-nbd">qemu-nbd</primary>
|
|---|
| 638 | </indexterm>
|
|---|
| 639 | </listitem>
|
|---|
| 640 | </varlistentry>
|
|---|
| 641 |
|
|---|
| 642 | <varlistentry id="qemu-system">
|
|---|
| 643 | <term><command>qemu-system-x86_64</command></term>
|
|---|
| 644 | <listitem>
|
|---|
| 645 | <para>is the QEMU PC System emulator.</para>
|
|---|
| 646 | <indexterm zone="qemu qemu-system">
|
|---|
| 647 | <primary sortas="b-qemu-system">qemu-system-x86_64</primary>
|
|---|
| 648 | </indexterm>
|
|---|
| 649 | </listitem>
|
|---|
| 650 | </varlistentry>
|
|---|
| 651 |
|
|---|
| 652 | <varlistentry id="virtfs-proxy-helper">
|
|---|
| 653 | <term><command>virtfs-proxy-helper</command></term>
|
|---|
| 654 | <listitem>
|
|---|
| 655 | <para>creates a socket pair or a named socket. QEMU and proxy helper
|
|---|
| 656 | communicate using this socket. QEMU proxy fs driver sends
|
|---|
| 657 | filesystem request to proxy helper and receives the response
|
|---|
| 658 | from it.</para>
|
|---|
| 659 | <indexterm zone="qemu virtfs-proxy-helper">
|
|---|
| 660 | <primary sortas="b-virtfs-proxy-helper">virtfs-proxy-helper</primary>
|
|---|
| 661 | </indexterm>
|
|---|
| 662 | </listitem>
|
|---|
| 663 | </varlistentry>
|
|---|
| 664 | <!-- libcacard has been a standalone project since qemu-2.5
|
|---|
| 665 | <varlistentry id="vscclient">
|
|---|
| 666 | <term><command>vscclient</command></term>
|
|---|
| 667 | <listitem>
|
|---|
| 668 | <para>implements a sockets interface to the virtual CCID reader
|
|---|
| 669 | on the guest.</para>
|
|---|
| 670 | <indexterm zone="qemu vscclient">
|
|---|
| 671 | <primary sortas="b-vscclient">vscclient</primary>
|
|---|
| 672 | </indexterm>
|
|---|
| 673 | </listitem>
|
|---|
| 674 | </varlistentry>
|
|---|
| 675 |
|
|---|
| 676 | <varlistentry id="libcacard">
|
|---|
| 677 | <term><filename class="libraryfile">libcacard.so</filename></term>
|
|---|
| 678 | <listitem>
|
|---|
| 679 | <para>is the Virtual Smart Card Emulator library.</para>
|
|---|
| 680 | <indexterm zone="qemu libcacard">
|
|---|
| 681 | <primary sortas="c-libcacard">libcacard.so</primary>
|
|---|
| 682 | </indexterm>
|
|---|
| 683 | </listitem>
|
|---|
| 684 | </varlistentry>-->
|
|---|
| 685 |
|
|---|
| 686 | </variablelist>
|
|---|
| 687 |
|
|---|
| 688 | </sect2>
|
|---|
| 689 |
|
|---|
| 690 | </sect1>
|
|---|
