SecVariableControl

Function Table

Address	Name	Description
	SecVariableControlDriverEntry
	SaveDramFailDataToVariable
	DebugProtocolInit
	ReadUnaligned64
	CompareGuid
	GetDebugLevel
	DebugBspPrint
	DebugPrint
	DebugAssert
	GetDxeServicesTable
	EntryDriverInit
	ModuleEntryPoint
Global	variables (in .data section)
EFI_SYSTEM_TABLE	*gSystemTable = NULL;
Function	prototypes
EFI_STATUS	EFIAPI
SMM	path: use pre-located SMM protocol handle
DXE	path
Read	CMOS offset 0x4B with NMI bit preserved
IoWrite8	**(0x70, (IoRead8 (0x70) & 0x80)	0x4B);**
Sanitize	format string: %s -> 'a', %g -> 'g'
FormatCopy	*= (CHAR8 )Format;**
5	DIMMs x 42 x 3 x 8 bytes
Zero	out all slot data buffers
ZeroMem	(&StepResultHeader, sizeof(StepResultHeader));
Get	HOB list and locate the DRAM fail data HOB
HobList	= GetHobList ();
Walk	HOBs to find the matching GUID
do	{
HOB	data starts at offset 24 (EFI_HOB_GUID_TYPE header is 24 bytes)
Each	entry is 18 bytes
HobData	*= (UINT8 )GuidHob + sizeof(EFI_HOB_GUID_TYPE);**
Parse	up to MAX_DRAM_FAIL_ENTRIES entries, distribute across up to 5 DIMMs
EntryIndex	= 0;
Extract	full DRAM address from HOB entry
Log	the failure
DebugBspPrint	(
Log	PPR result
if	(EntryFlags[EntryCount] == 1) {
Advance	entry counters
Process	bitmap pattern data (second pass)
for	(BitPosition = 0; BitPosition < 2; BitPosition++) {
Bit	test logic
Write	STEP_RESULT variable (184 bytes header)
Write	STEP_RESULT_NUM00 through NUM04
Save	UEFI handles and service table pointers
gImageHandle	= ImageHandle;
Initialize	HOB list pointer and DXE Services Table
GetHobList	();
Locate	DXE Services Table
Status	= GetDxeServicesTable (&gDxeServicesTable);

Generated by HR650X BIOS Decompilation Project