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//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2010, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
//*************************************************************************
// $Header: /Alaska/SOURCE/Modules/PTT/FastBootSMI.c 1 3/11/11 10:07p Bibbyyeh $
//
// $Revision: 1 $
//
// $Date: 3/11/11 10:07p $
//*************************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/PTT/FastBootSMI.c $
//
// 1 3/11/11 10:07p Bibbyyeh
// [TAG] EIP54993
// [Category] Improvement
// [Description]
// 1.Sync with Fastboot_10
// 2.Remove token "SAVE_LAST_BOOT_DEVICE_CHECKSUM"
// 3.Add token "CALL_DISPATCHER_AGAIN_IN_FASTBOOT"
// 4.Use SimpleText protocol to detect mode change hotkey instead of
// pBS->ConIn.
// 5.Simplify the code about "AMILEGACY16_FASTBOOT_SOLUTION".
// 6.Fixed a bug that SATA device can't be found if keep TSE execution on
// fastboot path.
// [Files] PPT.cif FastBoot.sdl FastBootRuntime.c FastBootTseHook.c
// FastBoot.c FastBoot.h FastBoot.sd FastBootProtocol.cif
// FastBootProtocol.h FastBootSMI.cif FastBootSMI.sdl FastBootSMI.c
// FastBootSMI.dxs FastBootSMI.mak
//
//*************************************************************************
//<AMI_FHDR_START>
//
// Name: FastBootSMI.c
//
// Description:
// Implementation of fast boot smi functionality
//
//<AMI_FHDR_END>
//*************************************************************************
#include <AmiDxeLib.h>
#include <Token.h>
#include <Protocol\SmiFlash.h>
#include <Protocol\SmmBase.h>
#include <Protocol\SmmSwDispatch.h>
#include <Protocol\SmmGpiDispatch.h>
#include <Protocol\DevicePath.h>
#include <Protocol\LoadedImage.h>
#include "AmiSmm.h"
#include <Setup.h>
#include <token.h>
EFI_GUID gSwSmiCpuTriggerGuid = SW_SMI_CPU_TRIGGER_GUID;
EFI_GUID SwDispatchProtocolGuid = EFI_SMM_SW_DISPATCH_PROTOCOL_GUID;
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: SwSmiHandler
//
// Description: SwSmiHandler
//
// Input:
// IN EFI_HANDLE DispatchHandle,
// IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext
//
// Output:
// VOID
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID SwSmiHandler(
IN EFI_HANDLE DispatchHandle,
IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext
)
{
EFI_SMM_CPU_SAVE_STATE *pCpuSaveState;
SW_SMI_CPU_TRIGGER *SwSmiCpuTrigger;
EFI_GUID EfiVariableGuid = EFI_GLOBAL_VARIABLE;
UINT8 SwSmiNum;
UINTN i;
UINTN Cpu = pSmst->CurrentlyExecutingCpu - 1;
EFI_STATUS Status;
// Search for software SMI entry
for (i = 0; i < pSmst->NumberOfTableEntries; ++i) {
if (guidcmp(&pSmst->SmmConfigurationTable[i].VendorGuid,&gSwSmiCpuTriggerGuid) == 0) {
break;
}
}
// If table found, check for the CPU that caused the software SMI.
if (i != pSmst->NumberOfTableEntries) { // found?
SwSmiCpuTrigger = pSmst->SmmConfigurationTable[i].VendorTable;
Cpu = SwSmiCpuTrigger->Cpu; // got cpu number
}
pCpuSaveState = pSmst->CpuSaveState;
SwSmiNum = (UINT8)DispatchContext->SwSmiInputValue;
// execute according to the software SMI value (from SW_SMI_IO_ADDRESS)
switch(SwSmiNum)
{
case FAST_BOOT_ENABLE_SWSMI: //enable fast boot
case FAST_BOOT_DISABLE_SWSMI: //disable fast boot
{
EFI_GUID SetupGuid = SETUP_GUID;
UINTN SetupDataSize = sizeof(SETUP_DATA);
SETUP_DATA SetupData;
Status = pRS->GetVariable(
L"Setup",
&SetupGuid,
NULL,
&SetupDataSize,
&SetupData);
if (SwSmiNum == FAST_BOOT_ENABLE_SWSMI)
SetupData.FastBoot = 1;
else if (SwSmiNum == FAST_BOOT_DISABLE_SWSMI)
SetupData.FastBoot = 0;
Status = pRS->SetVariable(
L"Setup",
&SetupGuid,
EFI_VARIABLE_NON_VOLATILE | \
EFI_VARIABLE_BOOTSERVICE_ACCESS | \
EFI_VARIABLE_RUNTIME_ACCESS,
SetupDataSize,
&SetupData);
break;
}
default:
break;
}
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: InSmmFunction
//
// Description: InSmmFunction
//
// Input:
// IN EFI_HANDLE ImageHandle,
// IN EFI_SYSTEM_TABLE *SystemTable
//
// Output:
// EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS InSmmFunction(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_SMM_SW_DISPATCH_PROTOCOL *SwDispatch;
EFI_SMM_SW_DISPATCH_CONTEXT SwSmiContext1;
EFI_SMM_SW_DISPATCH_CONTEXT SwSmiContext2;
EFI_GUID EfiVariableGuid = EFI_GLOBAL_VARIABLE;
EFI_HANDLE SwSmiHandle;
EFI_STATUS Status;
SwSmiContext1.SwSmiInputValue = FAST_BOOT_ENABLE_SWSMI;
SwSmiContext2.SwSmiInputValue = FAST_BOOT_DISABLE_SWSMI;
Status = pBS->LocateProtocol(&SwDispatchProtocolGuid, NULL, &SwDispatch);
if (EFI_ERROR(Status))
return Status;
Status = SwDispatch->Register(
SwDispatch,
SwSmiHandler,
&SwSmiContext1,
&SwSmiHandle
);
Status = SwDispatch->Register(
SwDispatch,
SwSmiHandler,
&SwSmiContext2,
&SwSmiHandle
);
return Status;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: FastBootSMIEntryPoint
//
// Description: FastBootSMIEntryPoint
//
// Input:
// IN EFI_HANDLE ImageHandle,
// IN EFI_SYSTEM_TABLE *SystemTable
//
// Output:
// EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS FastBootSMIEntryPoint(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
InitAmiLib(ImageHandle,SystemTable);
return InitSmmHandler(ImageHandle, SystemTable, InSmmFunction, NULL);
}
//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2010, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
|
