NvmeSmm

Index: 0210
Size: 18,052 bytes (4684h)
Phase: SMM (DXE_SMM_DRIVER)
Source Package: AmiModulePkg\Nvme\NvmeSmm\NvmeSmm

Overview

SMM-based NVMe controller management driver. Provides SMI-handled services for NVMe storage devices, including NVMe device power management, surprise hot-plug handling, and NVMe command queue management during SMM execution context. Handles NVMe controller reset and shutdown sequences under SMM protection. Includes a .reloc section for runtime relocation. Part of the AmiModulePkg NVMe stack that provides both boot-time (NvmePassThroughDxe) and SMM-time NVMe support.

Key Functions

• ModuleEntryPoint -- Main entry: calls sub_5A0 init, then sub_166C for NVMe SMM setup
• sub_5A0 -- UEFI driver init: caches ImageHandle, SystemTable, BootServices, RuntimeServices
• sub_166C -- Core NVMe SMM initialization: registers SMI handlers for NVMe events
• sub_19E4 / sub_3D0 -- NVMe notification cleanup/teardown callbacks
• sub_1B34 -- Debug ASSERT handler referencing AutoGen.c
• sub_1BE8 -- Error path cleanup handler

Protocols

• EFI_SMM_SYSTEM_TABLE2 for SMM services
• NVMe Controller Pass-Through protocol
• Storage Security Command protocol
• EFI_SMM_CPU_IO2 for MMIO access to NVMe BARs

Platform

HR650X (Purley), built from AmiModulePkg\Nvme, DEBUG VS2015 X64