LnvDriverDxe

Function Table

Address	Name	Description
	GetDebugLevel
	_ModuleEntryPoint
	LnvDriverDxeInitGlobals
	LnvDriverDxeInit
	OnReadyToBoot
	LnvSetupConfigCallback0
	LnvSetupConfigCallback1
	OnExitBootServices
	DebugPrint
	DebugAssert
	InstallProtocolInterface
	UnicodeSPrint
	UnicodeVSPrint
	DsBootCurrentName
	DebugLogPrint
	IpmiTransportInit
	IpmiTransportLocate
	IpmiSendCommand
	IpmiTransportSendCommand
	StrLen
	ReadUnaligned16
	ReadUnaligned64
	StrnLenS
	AsciiStrLen
	CompareGuid
	AsciiSPrintWithTimestamp
	AsciiVSPrint
	AsciiSPrint
Global	data
STATIC	EFI_HANDLE gImageHandle = NULL;
Global	variables for protocol interfaces
STATIC	*VOID gProtocolInterface = NULL; // qword_3C60**
qword_3C68	STATIC UINT64 gBootServicesPtr = 0; // qword_3C70
qword_3C78	STATIC UINT64 gSystemTablePtr = 0; // qword_3C80
qword_3C88	*STATIC VOID gIpmiTransportProtocol = NULL; // qword_3C90**
byte_3C98	//
GUID	definitions (from .rdata section)
EFI_GUID	gLnvDriverDxeProtocolGuid = { 0x9894A3A0, 0x440C, 0x4A8C, { 0x8F, 0x55, 0x35, 0x6E, 0x5F, 0x2E, 0xCE, 0x71 } };
Forward	declarations of local helper functions
STATIC	UINTN
_ModuleEntryPoint	// ============================================================================
LnvDriverDxeInitGlobals	(sub_3AC)
Get	the HOB list
GetHobList	();
Locate	or install the IPMI transport protocol
Status	= gBS->LocateProtocol (
Protocol	not found; register callback for when it becomes available
EfiEventGroupSignal	(&gLnvDriverDxeProtocolGuid);
LnvDriverDxeInit	(sub_64C)
Create	ReadyToBoot event
Status	= gBS->CreateEventEx (
Create	ExitBootServices event
Create	periodic timer event for configuration callback (index 0)
Status	= gBS->CreateEvent (
Create	periodic timer event for configuration callback (index 1)
Apply	initial LnvSetup configuration
VariableSize	= 0;
OnReadyToBoot	(sub_4AC)
LnvSetupConfigCallback0	(sub_518)
LnvSetupConfigCallback1	(sub_584)
OnExitBootServices	(sub_60C)
Apply	final configuration
LnvSetupConfigCallback1	(Event, Context);
GetProtocolInterface	(sub_810)
Allocate	a small page to test memory availability
Pages	= EFI_SIZE_TO_PAGES (31);
DebugPrint	(sub_890)
Check	if the debug level is enabled
Status	= GetDebugLevel ();
Call	the protocol's debug print function (at offset +16)
VA_END	(VaListMarker);
DebugAssert	(sub_8D8)
Call	the protocol's assert function (at offset +8)
GetHobList	(sub_918)
Get	the number of configuration table entries
Count	= gST->NumberOfTableEntries;
Search	for the HOB list GUID in the configuration table
for	(Index = 0; Index < Count; Index++) {
Verify	the HOB list was found
if	(gHobList == 0) {
InstallProtocolInterface	(sub_9F0)
IntToString	(sub_A48)
Lowercase	hex
StrToInt32	(sub_ABC)
Skip	leading whitespace (space = 0x20, tab = 0x09)
while	*(Str == 0x20		Str == 0x09) {*
Check	for sign
if	*(Str == '-') {**
Parse	digits
while	(TRUE) {
StatusToString	(sub_B94)
if	(Index >= 3) {
if	(Index > 2) {
Standard	EFI errors
if	(Index > 0x1E) {
Warning	codes
if	((Status & 0x2000000000000000ULL) == 0) {
UnicodeSPrint	(sub_C5C)
UnicodeVSPrint	(sub_C84)
Implementation	follows the standard UEFI VSPrint pattern.
See	MdePkg/Library/BasePrintLib/PrintLibInternal.c for reference.
Process	format string character by character
FormatStr	= Format;
Regular	character, copy to output
Escaped	percent
Parse	format specifier
UINTN	Width = 0;
Parse	numeric width
CONST	*CHAR16 ParseEnd;**
Handle	format type
switch	*(FormatStr) {**
GUID	format: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x
EFI_GUID	*Guid;
Uppercase	the hex letters
for	(UINTN i = 0; GuidStr[i] != L'\0'; i++) {
EFI	Status code
EFI_STATUS	Status;
Long	prefix
Fall	through to handle d/i/x/X/p
Convert	to string
CHAR8	DigitBuf[32];
Generate	digits in reverse
do	{
Apply	padding
while	(DigitCount < Width) {
Copy	digits in correct order
DsBootCurrentName	(sub_111C)
Initialize	the boot string buffer
SetMem	(BootString, 0, sizeof (BootString));
Get	the current boot option index
BootCurrentSize	= sizeof (BootCurrent);
Build	the BootXXXX variable name
UnicodeSPrint	(BootOptionName, sizeof (BootOptionName) / sizeof (CHAR16), L"Boot%04X", BootCurrent);
Get	the boot option variable data
Variable	exists; allocate buffer and read it
The	boot option description string starts at offset 6 in the
EFI_LOAD_OPTION	structure
StringLen	*= StrLen ((CONST CHAR16 )((UINTN)VariableData + 6));**
DebugLogPrint	(sub_1348)
Format	the message into buffer
VA_START	(VaListMarker, Format);
Truncate	if too long
if	(Length > 230) {
Get	current time
Build	packet with timestamp
PacketLength	= AsciiSPrintWithTimestamp (
Send	packet via IPMI transport protocol
ProtocolInterface	= GetProtocolInterface ();
Try	to locate the protocol
IpmiTransportInit	(sub_1498)
IpmiTransportLocate	(sub_14F8)
IpmiSendCommand	(sub_1580)
IpmiTransportSendCommand	(sub_1580 helper)
Call	the protocol's SendCommand function at offset +16
return	EFI_SUCCESS;
GetDebugLevel	(sub_15B8)
Read	CMOS register 0x4B
IoWrite8	**(0x70, (IoRead8 (0x70) & 0x80)	0x4B);**
Read	platform-specific debug register
DebugValue	**= (MmioRead8 (0xFDAF0490) & 2)	1;**
0x80000004	}
StrLen	(sub_1608)
ReadUnaligned16	(sub_169C)
ReadUnaligned64	(sub_16CC)
StrnLenS	(sub_16FC)
AsciiStrLen	(sub_1754)
CompareGuid	(sub_1778)
AsciiSPrintWithTimestamp	(sub_17E8)
SetMem16	(sub_1810)
UInt64ToStringReverse	(sub_1844)
AsciiVSPrint	(sub_18BC)
This	function is the main VSPrint implementation.
For	the full decompiled source, see the IDA output.
The	implementation handles:
return	0;
AsciiSPrint	(sub_26C4)
SetMem	(sub_2740)
Handle	misaligned bytes
UINTN	AlignmentOffset;
Write	aligned 32-bit values
AlignedCount	= Length >> 2;
Write	remaining bytes
while	(Length > 0) {
CopyMem	(sub_27A0)
Determine	copy direction based on overlap
BOOLEAN	Reverse = FALSE;
Src	+= Length;
Use	accelerated copy for aligned buffers >= 8 bytes
if	**(Length < 8		((UINTN)Src & 7) != ((UINTN)Dst & 7)) {**
Handle	misaligned start
if	(Reverse) {
Copy	8-byte aligned blocks
Count	= Length >> 3;
Count	= Length & 7;

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