AmiBoardInfo2

Function Table

Address	Name	Description
	_ModuleEntryPoint
Standard	UEFI globals (set by _ModuleEntryPoint)
EFI_HANDLE	gImageHandle = NULL;
Persistent	copies for AmiBoardInfo2Entry
EFI_SYSTEM_TABLE	gSavedSystemTable = NULL; / 0x1760 */
Debug	library globals
VOID	gDebugOutputProtocol = NULL; / 0x1720 (serial debug) */
HOB	list pointer (lazily initialized by GetHobList)
VOID	gHobList = NULL; / 0x1728 */
Allocate	one page for the serial I/O interface
Pages	= gBootServices->AllocatePages (AllocateAnyPages, EfiBootServicesData, 1);
Locate	the Serial I/O protocol
Read	CMOS diagnostic status register (0x70/0x71, index 0x4B)
CmosDebugLevel	= IoRead8 (0x70);
Check	platform-specific memory-mapped register
PlatformFlags	*= (volatile UINT8* )(UINTN)0xFDAF0490;**
DebugLevel	is 0: debug disabled
return	0;
Console	debug mode: locate StdErr protocol
if	(gDebugOutputProtocol2 != NULL) {
This	path not taken in console mode since gDebugInitialized=0
return	EFI_NOT_READY;
Serial	debug mode (default)
Pages	= gSavedBootServices->AllocatePages (AllocateAnyPages, EfiBootServicesData, 1);
Convert	%r (EFI_STATUS) to %r and %s/%g to ASCII-compatible format
Fmt	*= (CHAR8 )Format;**
Walk	the configuration table looking for HOB list GUID
while	(Count < gSystemTable->NumberOfTableEntries) {
Optimized	comparison handling misaligned start, aligned 8-byte blocks
and	trailing bytes.
CONST	*UINT8 B1;**
Handle	head misalignment if both pointers have same alignment
if	(AlignDelta != 0 && AlignDelta == ((UINTN)Buffer2 & 7)) {
Compare	aligned 8-byte chunks
while	*(Length >= 8 && (UINT64* )B1 == (UINT64 )B2) {**
Compare	remaining bytes
while	(Length > 0) {
Get	the HOB protocol handle list via gBS->LocateHandle
Status	= gSavedBootServices->LocateHandle (
Open	the HOB protocol for this handle
Status	= gSavedBootServices->OpenProtocol (
Get	the next HOB entry
SearchType	= (NameFilter != NULL) ? HobTypeCodeWithName : HobTypeCode;
If	name filter provided, copy and compare the name
if	(NameFilter != NULL) {
Name	doesn't match; adjust data pointer and free
EntryDataSize	-= 16;
Name	matches; fall through to return
Detect	overlap: if Source < Destination and overlap exists
copy	backwards from the end.
if	(Src < Dst && Src + Length > Dst) {
If	aligned and length >= 8, copy aligned head first
if	(Length >= 8 && (UINTN)Src - (UINTN)Dst < 8) {
Copy	misaligned head
AlignDelta	= (UINTN)Src & 7;
if	(Length >= 8) {
Copy	trailing bytes
if	(Length != 0) {
Save	global pointers with ASSERT checks (standard UEFI boilerplate)
gImageHandle	= ImageHandle;
Initialize	the HOB list
GetHobList	();
Dispatch	to the main board info entry function
return	AmiBoardInfo2Entry (ImageHandle, SystemTable);
Save	SystemTable, BootServices, RuntimeServices on first call
if	(gSavedSystemTable == NULL) {
Check	if the Multi-Platform Board Info protocol already exists
BoardInfo	= NULL;
Find	the protocol-data HOBs (they contain DSDT, SIO, IOAPIC data)
HasProtocolData	= FALSE;
Find	DSDT HOB data
if	(gProtocolDataBase != 0) {
Store	DSDT data pointer in the protocol structure (slot 2)
BoardInfo	*= (AMI_BOARD_INFO2_PROTOCOL )&gBoardInfoProtocolStructure;**
Find	DSDT ACPI table via HOB protocol (optional)
Status	= HobFindProtocolData (
Store	DSDT data pointer and size (slots 5, 6)
Find	SIO (Super I/O) data HOB
SioHobAddr	= 0;
Find	IOAPIC data HOB
Install	the AMI Board Info protocol
return	gSavedBootServices->InstallMultipleProtocolInterfaces (

Generated by HR650X BIOS Decompilation Project