GenericElog

Function Table

Address	Name	Description
	DebugLog
	AssertFatal
	OnExitBootServices
	OnVirtualAddressChange
	FreePoolOrAssert
	CompareGuidPair
	ReadUnaligned64
	ElogVirtualAddressChangeEvent
	EnumerateRedirectProtocols
	GenericElogWriteEvent
	GenericElogReadEvent
	GenericElogGetStatus
	GenericElogSetStatus
	ElogDriverInit
	GenericElogEntryPoint
	ElogDriverMain
External	GUID declarations (from .rdata section)
extern	EFI_GUID gEfiGenericElogProtocolGuid;
Globals	//
The	local structure that holds redirect-protocol pointers
and	the function dispatch table.
STATIC	*VOID gElogLocalStructure = NULL;**
Debug	/ assertion output handle
STATIC	*VOID gDebugOutputHandle = NULL;**
HOB	list pointer (discovered during init)
STATIC	*VOID gHobList = NULL;**
STATIC	VOID *
This	is a simplified memset(0) for the given buffer.
The	original implementation used 8-byte aligned stores
followed	by a byte-wise tail.
ZeroMem	(Buffer, Length);
Returns	the debug output handle (if available).
STATIC	EFI_STATUS
Read	CMOS offset 0x4B to determine the current debug level.
If	the debug level is <= 3, clamp it.
BiosDebugLevel	= IoRead8 (0x70);
Map	BIOS debug level to EFI debug mask.
UINTN	DebugMask = 0x80000400; // EFI_D_ERROR (default)
EFI_D_INFO	}
STATIC	VOID
Allocate	zeroed pool (originally sub_19B0)
Free	pool with ASSERT (originally sub_19E8)
Create	a notification event and register for protocol callbacks
Discover	HOB list from the System Table (originally sub_1B18)
GUID	comparison helper (originally sub_1BF0)
STATIC	BOOLEAN
Compare	two GUIDs by reading them as 64-bit halves.
EFI_GUID	LocalGuid1;
Read	unaligned UINT64 (originally sub_1C60)
STATIC	UINT64
Converts	pointers in the gElogLocalStructure for runtime.
Convert	each redirect handle pointer in the array
Count	*= (UINT8* )((UINT8 )gElogLocalStructure + ELOG_STRUCT_REDIR_COUNT_OFFSET);*
Convert	the structure's base pointers.
Enumerate	redirect protocols (originally sub_146C)
Locates	all handles that publish gEfiRedirElogProtocolGuid and stores
up	to ELOG_MAX_REDIRECTS of them in gElogLocalStructure.
Reset	the redirect count.
GenericElogWriteEvent	- dispatch to redirect handlers (originally sub_1550)
Maximum	log type check.
if	(LogType >= ELOG_MAX_REDIRECTS) {
GenericElogReadEvent	- dispatch to redirect handlers (originally sub_160C)
GenericElogGetStatus	- dispatch to redirect handlers (originally sub_16B0)
GenericElogSetStatus	- dispatch to redirect handlers (originally sub_1738)
Module	initialization (originally sub_1108)
Saves	ImageHandle / SystemTable / BootServices / RuntimeServices
creates	the exit-boot-services event and the virtual-address-change
Save	globals.
gImageHandle	= ImageHandle;
Save	copies for runtime conversion.
gRuntimeServicesCopy	= gRuntimeServices;
Create	ExitBootServices notification that clears the BS copy.
Create	protocol notification for the GenericElog protocol
which	triggers redirect-protocol enumeration.
Create	VirtualAddressChange notification to convert pointers.
Discover	the HOB list.
return	(EFI_STATUS)GetHobList ();
Module	entry point (originally ModuleEntryPoint at 0x10C4)
See	GenericElogEntryPoint in the header.
Stage	1: Save globals, create events, discover HOBs.
ElogDriverInit	(ImageHandle, SystemTable);
Stage	2: Allocate the local structure, set up the protocol dispatch
install	the GenericElog protocol, enumerate redirects, and register
the	virtual-address-change event handler.
Status	= (EFI_STATUS)(UINTN)ElogDriverMain ();
Clean	up resources on failure.
if	(gBootServicesCopy != NULL) {
Driver	main (originally sub_1210)
Allocates	the gElogLocalStructure, fills in the dispatch table
installs	the GenericElog protocol, enumerates redirect handlers
creates	the virtual-address-change event, and registers the
notification	event for the RedirElog protocol.
The	dispatch function pointers are embedded in the local structure.
Allocate	the local structure (0x49 bytes).
gElogLocalStructure	= AllocateZeroedPool (0x49);
Fill	in the dispatch table at the beginning of the structure.
Install	the GenericElog protocol.
Status	= gBootServices->InstallProtocolInterface (
Enumerate	existing redirect protocols and register for new ones.
Registration	= CreateProtocolNotifyEvent (
Create	the VirtualAddressChange event.

Generated by HR650X BIOS Decompilation Project