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smbios-type-11(7) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | STRINGS | SEE ALSO | NOTES | COLOPHON 

SMBIOS-TYPE-11(7)             smbios-type-11            SMBIOS-TYPE-11(7)

NAME         top

       smbios-type-11 - SMBIOS Type 11 strings

SYNOPSIS         top

       /sys/firmware/dmi/entries/11-*/raw

DESCRIPTION         top

       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
       kernel-command-line(7) parameters but generally are under control
       of the VMM rather than the boot loader or UKI.

       For details on SMBIOS Type 11 see the System Management BIOS[1]
       specifications.

STRINGS         top

       The following strings are supported:

       io.systemd.credential:CREDENTIAL=VALUE,
       io.systemd.credential.binary:CREDENTIAL=VALUE
           This allows passing additional system credentials into the
           system, in textual or binary (Base64) form. See
           systemd.exec(5) and System and Service Credentials[2] for
           details.

           Added in version 252.

       io.systemd.stub.kernel-cmdline-extra=CMDLINE
           This allows configuration of additional kernel command line
           options, and is read by the kernel UEFI stub. For details see
           systemd-stub(7).

           Added in version 254.

       io.systemd.boot.kernel-cmdline-extra=CMDLINE
           This allows configuration of additional kernel command line
           options for Boot Loader Specification Type 1 entries, and is
           read by systemd-boot. For details see systemd-boot(7).

           Added in version 256.

       io.systemd.boot-entries.extra:ID=DEFINITION
           This allows inserting additional entries into the systemd-boot
           menu. For details see systemd-boot(7)

           Added in version 258.

SEE ALSO         top

       systemd(1), kernel-command-line(7), systemd.system-credentials(7)

NOTES         top

        1. System Management BIOS
           https://www.dmtf.org/standards/smbios/

        2. System and Service Credentials
           https://systemd.io/CREDENTIALS

COLOPHON         top

       This page is part of the systemd (systemd system and service
       manager) project.  Information about the project can be found at
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have a
       bug report for this manual page, see
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
       This page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2025-08-11.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2025-08-11.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there is
       a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

systemd 258~rc2                                         SMBIOS-TYPE-11(7)

Pages that refer to this page: systemd-analyze(1),  systemd-vmspawn(1),  kernel-command-line(7),  systemd.directives(7),  systemd.index(7),  systemd.system-credentials(7)

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