Module smbios 

Arch-neutral SMBIOS 3.x (DMI) table builder.

In firmware-less Linux direct boot there is no UEFI/PCAT firmware to synthesize SMBIOS tables, so the loader must build them itself. This module builds a SMBIOS 3.0 (64-bit) entry point (_SM3_) whose structure table implements SMBIOS 3.1 (Type 0 BIOS, Type 1 System, Type 127 End-of-table). Per DMTF DSP0134, “SMBIOS 3.0 (64-bit) Entry Point” is the fixed name of the entry-point format (entry-point revision 01h); the SMBIOS version the tables conform to is carried separately in the entry point’s major/minor version fields. The caller decides where the structure table lives in guest memory and how the entry point is delivered to the guest (x86 F-segment scan vs. aarch64 EFI configuration table).

Structs

BuiltSmbios

The built SMBIOS blobs, ready to be placed in guest memory.

SmbiosBiosInfo

BIOS Information (SMBIOS Type 0).

SmbiosSystemInfo

System Information (SMBIOS Type 1).

SmbiosTables

Aggregate of the SMBIOS structures to build. The caller supplies all of the identity strings and the system UUID.

Constants

ENTRY_POINT_SIZE

Size in bytes of the SMBIOS 3.0 (64-bit) entry point (_SM3_). Callers that place the entry point and structure table separately (e.g. the aarch64 EFI configuration-table path) use this to reserve space for the entry point before knowing the structure table’s address.

Functions

build

Builds the SMBIOS entry point and structure table.