NvdimmCommon

Overview

NvdimmCommon is a lightweight DXE driver that initializes the ACPI-to-SMM communication interface for NVDIMM firmware interaction on Intel Purley platforms. It allocates a shared physical memory buffer, installs the NVDIMM ACPI SMM protocol with Get/Set driver type callbacks, and registers ExitBootServices and VirtualAddressChange event notifications. Source: PurleySktPkg/Dxe/NvdimmCommon/NvdimmCommon.c.

Key Functions

• NvdimmCommonEntryPoint — driver entry; allocates SMM comm buffer, installs protocol
• NVDIMM_ACPI_SMM_PROTOCOL — Get/Set driver type callbacks
• ExitBootServices / VirtualAddressChange event handlers

Dependencies

• UEFI Boot Services, Runtime Services
• DXE Services Table
• HOB List
• NVDIMM ACPI SMM Protocol

Platform

Lenovo HR650X (Intel Purley), X64, UEFI DXE driver (DEBUG_VS2015 X64 build)