RegAccessSMM

Function Table

Address	Name	Description
	ModuleEntryPoint
	RegAccessSmmConstructor
	RegAccessSmmDestructor
	RegAccessSmmEntryPoint
	S3BootScriptLibInitialize
	CopyMem
	ZeroMem
	DebugPrint
	DebugAssert
	AcquireSpinLock
	ReleaseSpinLock
	S3BootScriptNotifyDxeSmmReadyToLock
	UsraDecodeAddress
	UsraSocketDataInit
Global	Variables (.data segment: 0x6380-0x67E0)
SMM	System State
0x6508	*EFI_RUNTIME_SERVICES gRuntimeServices = NULL; // 0x6510**
0x6520	*VOID gDebugProtocol = NULL; // 0x6528**
0x6530	UINT64 gPciExpressBaseAddr = 0; // 0x6538
0x6540	UINT64 gTscFrequency = 0; // 0x6548
0x6550	byte
0x6558	// USRA / IIO Topology
0x6560	BOOLEAN gCsrViaMsr = FALSE; // 0x6568 byte
0x65A8	BOOLEAN gUsraBatchActive = FALSE; // 0x65B0 byte
0x65C0	UINT64 gModuleStatus = 0; // 0x66C8
0x66D0	*UINT8 gIioProtocolData = NULL; // 0x66D8**
0x66E0	UINT8 gSocketTopoData[24]; // 0x66E4
0x670C	UINT8 gSocketCnt = 0; // 0x670D
0x670E	UINT32 gSockPrMask = 0; // 0x6712
0x6716	UINT8 gCpuStepping = 0; // 0x671A
0x671B	UINT8 gMaxPciePorts = 0; // 0x671C
0x6740	UINT8 gIioPresenceActive = 0; // 0x676C
0x676E	UINT32 gSockPrMaskActive = 0; // 0x6772
0x677A	UINT8 gMaxPciePortsActive = 0; // 0x677C
S3	Boot Script State
0x6570	BOOLEAN gS3ReadyToLockFlag = FALSE; // 0x6578 byte
0x6580	*EFI_SMM_S3_PROTOCOL gSmmS3Protocol = NULL; // 0x6588**
0x6590	*VOID gS3RdyBootReg = NULL; // 0x6598**
0x67A0	*UINT8 gS3BootScriptData2 = NULL; // 0x67A8**
SmmLockBox	State
0x67B0	16 bytes
0x67B8	UINT64 gSmramRangeCnt = 0; // 0x67C0
0x67C8	// ---------------------------------------------------------------------------
Module	Entry Point (AutoGen)
These	are debug ASSERT_NOT_REACHED markers from AutoGen
Query	SMRAM range count
Count	of UINT64 pairs
TSC	ticks per 10 ms
Install	LockBox communication configuration table
Detect	IioProtocol and CSR/MSR routing
CLFLUSH	line size in QWORDs
Intel	hyper-threading: adjust for logical processors per core
Allocate	cache-aligned region + spinlock at end
Close	S3 boot script
Uninstall	LockBox communication config table if installed
Free	SMRAM ranges pool
S3	Boot Script Library
First	call from constructor
Allocate	default-sized boot script table
Register	DxeSmmReadyToLock notification
Locate	SMM S3 protocol
Allocate	S3 memory descriptor
Register	S3 notifications
Register	ReadyToBoot notification
as	per decompilation of sub_1DC8, sub_1E24, sub_2554, etc.)
Full	implementation in RegAccessSMM_full.c
Helper	Functions
Validate	no overflow
Read	CMOS debug level: port 0x70 index 0x4C, port 0x71 data
Map	to standard error level
Call	SMM Debug protocol print
SMM	Spinlock
SmmLockBox	Interface
S3	Boot Script: notify DxeSmmReadyToLock
Restore	boot script data from LockBox
Save	updated boot script data to LockBox
USRA	Register Access
Initialize	socket topology data
Mask	high bits in register address
Get	socket MMIO base
Get	box instance
mix	with original
IIO	Topology Initialization
Locate	IIO protocol
Extract	per-socket topology data (4 sockets, 6 bytes per socket)
socket	BDF data
socket	type
mmcfg	addr
reserved	// Copy raw IO data (6 bytes per socket)
Copy	to active set

Generated by HR650X BIOS Decompilation Project