# SmbiosDataUpdateDxeLightningRidgeEXECB4

**Index**: 0042 | **Size**: 15616 bytes | **Arch**: x64 | **Phase**: DXE

## Overview
SMBIOS data table update driver for the LightningRidge EX EC B4 platform. Installs protocol notifications for ACPI processor ID mapping (ACPF table with 59 entries) and PIRQ routing data, updating SMBIOS tables with processor-to-ID mappings and PCI interrupt routing information.

## Key Functions
- SmbiosDataUpdateEntryPoint — Initializes services, retrieves SMBIOS HOB, registers protocol notifications
- OnAcpiProcessorIdNotify — Handles ACPF table installation to update SMBIOS processor ID data
- OnSmbiosDataNotify — Handles PIRQ routing data installation

## Protocols / Dependencies
- UMPT (Uncore Memory Protocol Table) Protocol
- PIRQ Protocol
- SMBIOS Protocol
- Debug Protocol
- HOB List

## Platform
LightningRidge EX EC B4