systemd/man/smbios-type-11.xml

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  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<refentry id="smbios-type-11" xmlns:xi="http://www.w3.org/2001/XInclude">

  <refentryinfo>
    <title>smbios-type-11</title>
    <productname>systemd</productname>
  </refentryinfo>

  <refmeta>
    <refentrytitle>smbios-type-11</refentrytitle>
    <manvolnum>7</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>smbios-type-11</refname>
    <refpurpose>SMBIOS Type 11 strings</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <para><filename>/sys/firmware/dmi/entries/11-*/raw</filename></para>
  </refsynopsisdiv>

  <refsect1>
    <title>Description</title>

    <para>Various OS components process SMBIOS Type 11 vendor strings that a virtual machine manager (VMM)
    may set and a virtual machine (VM) receives. SMBIOS Type 11 vendor strings may play a similar role as
    <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>1</manvolnum></citerefentry>
    parameters but generally are under control of the VMM rather than the boot loader or UKI.</para>

    <para>For details on SMBIOS Type 11 see the <ulink url="https://www.dmtf.org/standards/smbios/">System
    Management BIOS</ulink> specifications.</para>
  </refsect1>

  <refsect1>
    <title>Core OS Command Line Arguments</title>

    <para>The following strings are supported:</para>

    <variablelist class='smbios-type-11-options'>
      <varlistentry>
        <term><varname>io.systemd.credential:</varname><replaceable>CREDENTIAL=VALUE</replaceable></term>
        <term><varname>io.systemd.credential.binary:</varname><replaceable>CREDENTIAL=VALUE</replaceable></term>

        <listitem><para>This allows passing additional system credentials into the system, in textual or binary (Base64)
        form. See
        <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> and
        <ulink url="https://systemd.io/CREDENTIALS">System and Service Credentials</ulink> for
        details.</para>

        <xi:include href="version-info.xml" xpointer="v254"/></listitem>
      </varlistentry>

      <varlistentry>
        <term><varname>io.systemd.stub.kernel-cmdline-extra=</varname><replaceable>CMDLINE</replaceable></term>

        <listitem><para>This allows configuration of additional kernel command line options, and is read by
        the kernel UEFI stub. For details see
        <citerefentry><refentrytitle>systemd-stub</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>

        <xi:include href="version-info.xml" xpointer="v254"/></listitem>
      </varlistentry>
    </variablelist>
  </refsect1>

  <refsect1>
      <title>See Also</title>
      <para>
        <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
        <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
        <citerefentry><refentrytitle>systemd.system-credentials</refentrytitle><manvolnum>7</manvolnum></citerefentry>
      </para>
  </refsect1>

</refentry>