smbios-type-11 - SMBIOS Type 11 strings
/sys/firmware/dmi/entries/11-*/raw
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(1) 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.
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(1).
Added in version 254.
systemd(1), kernel-command-line(7), systemd.system-credentials(7)
System Management BIOS
System and Service Credentials