SoftSkuStatus

Overview

DXE driver that detects Soft SKU (Software Socket/Processor Licensing) compliance on multi-socket systems. Reads MSR-based capability and license registers per socket, stores them into UEFI variables ("SocketCapability", "SocketLicense"), and manages the "ForceProvisioning" variable. Also optionally enables Memory Tiering via a one-shot timer callback. This driver enforces processor licensing for systems where socket activation is controlled by software license keys rather than hardware presence.

Key Functions

• ModuleEntryPoint -- calls SoftSkuEntry and SoftSkuMain
• SoftSkuMain -- core SKU detection and license validation per socket
• MSR capability and license register readers
• UEFI variable management for SocketCapability/SocketLicense
• Memory Tiering one-shot timer setup

Dependencies

• CPU Configuration Protocol (MSR access)
• PCD Protocol
• DXE Services Table
• HOB List
• UEFI Variable Services

Platform

Lenovo HR650X, Purley platform.