man/smbios-type-11.xml

   1 <?xml version='1.0'?> <!--*-nxml-*-->
   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   3   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
   4 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
   5
   6 <refentry id="smbios-type-11" xmlns:xi="http://www.w3.org/2001/XInclude">
   7
   8   <refentryinfo>
   9     <title>smbios-type-11</title>
  10     <productname>systemd</productname>
  11   </refentryinfo>
  12
  13   <refmeta>
  14     <refentrytitle>smbios-type-11</refentrytitle>
  15     <manvolnum>7</manvolnum>
  16   </refmeta>
  17
  18   <refnamediv>
  19     <refname>smbios-type-11</refname>
  20     <refpurpose>SMBIOS Type 11 strings</refpurpose>
  21   </refnamediv>
  22
  23   <refsynopsisdiv>
  24     <para><filename>/sys/firmware/dmi/entries/11-*/raw</filename></para>
  25   </refsynopsisdiv>
  26
  27   <refsect1>
  28     <title>Description</title>
  29
  30     <para>Various OS components process SMBIOS Type 11 vendor strings that a virtual machine manager (VMM)
  31     may set and a virtual machine (VM) receives. SMBIOS Type 11 vendor strings may play a similar role as
  32     <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>1</manvolnum></citerefentry>
  33     parameters but generally are under control of the VMM rather than the boot loader or UKI.</para>
  34
  35     <para>For details on SMBIOS Type 11 see the <ulink url="https://www.dmtf.org/standards/smbios/">System
  36     Management BIOS</ulink> specifications.</para>
  37   </refsect1>
  38
  39   <refsect1>
  40     <title>Strings</title>
  41
  42     <para>The following strings are supported:</para>
  43
  44     <variablelist class='smbios-type-11-options'>
  45       <varlistentry>
  46         <term><varname>io.systemd.credential:</varname><replaceable>CREDENTIAL=VALUE</replaceable></term>
  47         <term><varname>io.systemd.credential.binary:</varname><replaceable>CREDENTIAL=VALUE</replaceable></term>
  48
  49         <listitem><para>This allows passing additional system credentials into the system, in textual or binary (Base64)
  50         form. See
  51         <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> and
  52         <ulink url="https://systemd.io/CREDENTIALS">System and Service Credentials</ulink> for
  53         details.</para>
  54
  55         <xi:include href="version-info.xml" xpointer="v252"/></listitem>
  56       </varlistentry>
  57
  58       <varlistentry>
  59         <term><varname>io.systemd.stub.kernel-cmdline-extra=</varname><replaceable>CMDLINE</replaceable></term>
  60
  61         <listitem><para>This allows configuration of additional kernel command line options, and is read by
  62         the kernel UEFI stub. For details see
  63         <citerefentry><refentrytitle>systemd-stub</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
  64
  65         <xi:include href="version-info.xml" xpointer="v254"/></listitem>
  66       </varlistentry>
  67     </variablelist>
  68   </refsect1>
  69
  70   <refsect1>
  71       <title>See Also</title>
  72       <para>
  73         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  74         <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
  75         <citerefentry><refentrytitle>systemd.system-credentials</refentrytitle><manvolnum>7</manvolnum></citerefentry>
  76       </para>
  77   </refsect1>
  78
  79 </refentry>