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|
#pragma optimize ("", off)
//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2011, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
//*************************************************************************
// $Header: /Alaska/BIN/Chipset/Intel/SouthBridge/LynxPoint/Intel Pch SB Chipset/SmmChildDispatcher2/SmmChildDispatch2Main.c 4 10/19/12 2:52a Scottyang $
//
// $Revision: 4 $
//
// $Date: 10/19/12 2:52a $
//*************************************************************************
// Revision History
// ----------------
// $Log: /Alaska/BIN/Chipset/Intel/SouthBridge/LynxPoint/Intel Pch SB Chipset/SmmChildDispatcher2/SmmChildDispatch2Main.c $
//
// 4 10/19/12 2:52a Scottyang
// [TAG] EIP93461
// [Category] Bug Fix
// [Severity] Normal
// [Symptom] System halt when AFUDOS is running with /N /ME command.
// [RootCause] An unexpected BIOSWR_STS is set, it causes BIOS stuck
// at SMM dispatcher.
// [Solution] Clear BIOSWR_STS if BIOS Lock Enable is not set.
// [Files] SmiHandlerPorting2.c; SmmChildDispatch2Main.c
// SmmChildDispatcher2.sdl; SmmChildDispatch2.h
// SB\SBGeneric.c
//
// 3 8/30/12 9:50a Victortu
// [TAG] None
// [Category] Improvement
// [Description] Implement EIP#73211 and EIP#79156 for OA 3.0 function.
// [Files] SmiHandlerGeneric2.c, SmmChildDispatch2Main.c
//
// 2 4/25/12 9:32a Victortu
// [TAG] None
// [Category] Improvement
// [Description] Reprogram SMM ChildDispatcher drivers.
// [Files] SmiHandlerGeneric.c; SmiHandlerPorting.c;
// SmiHandlerGeneric2.c; SmmChildDispatch2Main.c; SmmChildDispatcher2.mak;
// SmmChildDispatcher2.sdl; SmmChildDispatch.h; SmmChildDispatchMain.c;
// SmmChildDispatchProtocol.c; SmmChildDispatcher.dxs;
// PchSmiDispatcher.sdl
//
// 1 2/08/12 8:28a Yurenlai
// Intel Lynx Point/SB eChipset initially releases.
//
//*************************************************************************
//<AMI_FHDR_START>
//
// Name: SmmChildDispatch2Main.c
//
// Description: This file contains implementation of module entry point,
// generic RegisterHandler and UnregisterHandler routines
// and main dispatcher loop.
//
//<AMI_FHDR_END>
//*************************************************************************
//---------------------------------------------------------------------------
// Include(s)
//---------------------------------------------------------------------------
#include <AmiCspLib.h>
#include <Smm.h>
#include <Protocol\SmmBase2.h>
#include <Protocol\SmmCpu.h>
#include "SmmChildDispatch2.h"
#include "SmmChildDispatch2Protocol.h"
//---------------------------------------------------------------------------
// Constant, Macro and Type Definition(s)
//---------------------------------------------------------------------------
// Constant Definition(s)
#define SMI_HANDLER_SIGNATURE 0x48494d53 //SMIH
// Macro Definition(s)
// Type Definition(s)
// Function Prototype(s)
//---------------------------------------------------------------------------
// Variable and External Declaration(s)
//---------------------------------------------------------------------------
// Variable Declaration(s)
EFI_SMM_SMI_CONTEXT2 SmiContext;
EFI_SMM_BASE2_PROTOCOL *gSmmBase2;
EFI_SMM_SYSTEM_TABLE2 *gSmst2;
EFI_SMM_CPU_PROTOCOL *gEfiSmmCpuProtocol;
// GUID Definition(s)
EFI_GUID gEfiSmmChildDispatcher2Guid = SMM_CHILD_DISPATCHER2_GUID;
// Protocol Definition(s)
// External Declaration(s)
extern SMM_CHILD_DISPATCHER2 Smm2Handler[];
extern EFI_SMM_SW_DISPATCH2_PROTOCOL gEfiSmmSwDispatch2Protocol;
extern EFI_SMM_SX_DISPATCH2_PROTOCOL gEfiSmmSxDispatch2Protocol;
extern EFI_SMM_PERIODIC_TIMER_DISPATCH2_PROTOCOL gEfiSmmPeriodicTimerDispatch2Protocol;
extern EFI_SMM_USB_DISPATCH2_PROTOCOL gEfiSmmUsbDispatch2Protocol;
extern EFI_SMM_GPI_DISPATCH2_PROTOCOL gEfiSmmGpiDispatch2Protocol;
extern EFI_SMM_STANDBY_BUTTON_DISPATCH2_PROTOCOL gEfiSmmStandbyButtonDispatch2Protocol;
extern EFI_SMM_POWER_BUTTON_DISPATCH2_PROTOCOL gEfiSmmPowerButonDispatch2Protocol;
extern EFI_SMM_IO_TRAP_DISPATCH2_PROTOCOL gEfiSmmIoTrapDispatch2Protocol;
// Function Definition(s)
//---------------------------------------------------------------------------
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: RegisterHandler2
//
// Description: This function registers SMI II handler and returns registered
// handle
//
// Input: Type - Type of SMI handler
// Function - Pointer to callback function
// *Context - Pointer to callback context
// ContextSize - Callback context size
// *Handle - Pointer to store registered handle
//
// Output: EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS RegisterHandler2 (
IN EFI_SMM_SMI2 Type,
IN SMI_GENERIC_CALLBACK2 Function,
IN VOID *Context,
IN UINTN ContextSize,
OUT EFI_HANDLE *Handle )
{
EFI_STATUS Status;
HANDLER_LINK2 *HandlerLink;
Status = Smm2Handler[Type].HandlerProtocol.VerifyContext( Context );
if(EFI_ERROR(Status)) return Status;
Status = gSmst2->SmmAllocatePool( 0,
sizeof(HANDLER_LINK2) + ContextSize - 1,
&HandlerLink );
if(EFI_ERROR(Status)) return Status;
HandlerLink->Callback = Function;
HandlerLink->Signature = SMI_HANDLER_SIGNATURE;
MemCpy( HandlerLink->Context, Context, ContextSize );
DListAdd(&(Smm2Handler[Type].RegisteredCallbacks), (DLINK *)HandlerLink);
Smm2Handler[Type].HandlerProtocol.AddHandler( HandlerLink->Context );
*Handle = HandlerLink;
return EFI_SUCCESS;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: FindHandler
//
// Description: This function find the handle in the Type of SMI hander list.
//
// Input: Type - Type of SMI handler
// Handle - Handle of found handler
//
// Output: EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS FindHandler(
IN EFI_SMM_SMI2 Type,
IN EFI_HANDLE Handle)
{
HANDLER_LINK2 *HandlerLink = (HANDLER_LINK2 *)Handle;
HANDLER_LINK2 *NodeLink = NULL;
if (HandlerLink->Signature != SMI_HANDLER_SIGNATURE)
return EFI_INVALID_PARAMETER;
if (Smm2Handler[Type].RegisteredCallbacks.Size <= 0)
return EFI_UNSUPPORTED;
NodeLink = (HANDLER_LINK2 *)Smm2Handler[Type].RegisteredCallbacks.pHead;
for (; NodeLink != NULL; NodeLink = (HANDLER_LINK2 *)NodeLink->Link.pNext)
{
if (NodeLink == HandlerLink)
return EFI_SUCCESS;
}
return EFI_UNSUPPORTED;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: UnregisterHandler2
//
// Description: This function unregisters SMI II handler with given handle
//
// Input: Type - Type of SMI handler
// Handle - Handle of registered handler
//
// Output: EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS UnregisterHandler2 (
IN EFI_SMM_SMI2 Type,
IN EFI_HANDLE Handle )
{
EFI_STATUS Status;
HANDLER_LINK2 *HandlerLink = (HANDLER_LINK2 *)Handle;
Status = FindHandler(Type, Handle);
if (Status == EFI_SUCCESS)
{
Smm2Handler[Type].HandlerProtocol.RemoveHandler( HandlerLink->Context );
DListDelete( &(Smm2Handler[Type].RegisteredCallbacks), (DLINK *)HandlerLink );
gSmst2->SmmFreePool( HandlerLink );
}
return Status;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: ChildDispatcher2
//
// Description: This function implements main SMI II dispatcher.
//
// Input: DispatchHandle - SMM dispatch handle
// *Context - Pointer to the dispatched context
// CommBuffer - Pointer to a collection of data in memory
// that will be conveyed from a non-SMM
// environment into an SMM environment.
// CommBufferSize - Pointer to the size of the CommBuffer
//
// Output: EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS ChildDispatcher2 (
IN EFI_HANDLE DispatchHandle,
IN CONST VOID *Context OPTIONAL,
IN OUT VOID *CommBuffer OPTIONAL,
IN OUT UINTN *CommBufferSize OPTIONAL )
{
EFI_STATUS Status = EFI_UNSUPPORTED;
UINT32 Index;
BOOLEAN HandledSmi;
do
{
HandledSmi = FALSE;
for (Index = EfiSmmSwSmi2; Index < EfiSmmMaxSmi2; Index++)
{
if (Smm2Handler[Index].HandlerProtocol.GetContext != 0 &&
Smm2Handler[Index].HandlerProtocol.GetContext())
{
Status = Smm2Handler[Index].HandlerProtocol.DispatchSmi();
if (Status != EFI_WARN_INTERRUPT_SOURCE_QUIESCED)
{
HandledSmi = TRUE;
}
}
}
} while (HandledSmi);
// [EIP93461]>
SbSmiWorkaround2();
// <[EIP93461]
return EFI_HANDLER_SUCCESS;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: InSmmFunction
//
// Description: This function initializes Child dispatcher in SMM mode
//
// Input: ImageHandle - Image handle
// *SystemTable - Pointer to system table
//
// Output: EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS InSmmFunction (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable )
{
EFI_STATUS Status;
EFI_HANDLE Handle = NULL;
EFI_HANDLE BsHandle = NULL;
EFI_HANDLE RootHandle;
#if (CHILD_DISPATCHER_SUPPORT == 0)
ClearAllSmi();
#endif
// Locate SMM CPU Protocols
Status = gSmst2->SmmLocateProtocol( &gEfiCpuProtocolGuid,
NULL,
&gEfiSmmCpuProtocol);
// Install Protocols
Status = gSmst2->SmmInstallProtocolInterface(
&Handle,
&gEfiSmmSwDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&gEfiSmmSwDispatch2Protocol);
ASSERT_EFI_ERROR(Status);
Status = pBS->InstallProtocolInterface(
&BsHandle,
&gEfiSmmSwDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL);
ASSERT_EFI_ERROR(Status);
Status = gSmst2->SmmInstallProtocolInterface(
&Handle,
&gEfiSmmSxDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&gEfiSmmSxDispatch2Protocol);
ASSERT_EFI_ERROR(Status);
Status = pBS->InstallProtocolInterface(
&BsHandle,
&gEfiSmmSxDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL);
ASSERT_EFI_ERROR(Status);
Status = gSmst2->SmmInstallProtocolInterface(
&Handle,
&gEfiSmmPeriodicTimerDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&gEfiSmmPeriodicTimerDispatch2Protocol);
ASSERT_EFI_ERROR(Status);
Status = pBS->InstallProtocolInterface(
&BsHandle,
&gEfiSmmPeriodicTimerDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL);
ASSERT_EFI_ERROR(Status);
Status = gSmst2->SmmInstallProtocolInterface(
&Handle,
&gEfiSmmUsbDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&gEfiSmmUsbDispatch2Protocol);
ASSERT_EFI_ERROR(Status);
Status = pBS->InstallProtocolInterface(
&BsHandle,
&gEfiSmmUsbDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL);
ASSERT_EFI_ERROR(Status);
Status = gSmst2->SmmInstallProtocolInterface(
&Handle,
&gEfiSmmGpiDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&gEfiSmmGpiDispatch2Protocol);
ASSERT_EFI_ERROR(Status);
Status = pBS->InstallProtocolInterface(
&BsHandle,
&gEfiSmmGpiDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL);
ASSERT_EFI_ERROR(Status);
Status = gSmst2->SmmInstallProtocolInterface(
&Handle,
&gEfiSmmStandbyButtonDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&gEfiSmmStandbyButtonDispatch2Protocol);
ASSERT_EFI_ERROR(Status);
Status = pBS->InstallProtocolInterface(
&BsHandle,
&gEfiSmmStandbyButtonDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL);
ASSERT_EFI_ERROR(Status);
Status = gSmst2->SmmInstallProtocolInterface(
&Handle,
&gEfiSmmPowerButtonDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&gEfiSmmPowerButonDispatch2Protocol);
ASSERT_EFI_ERROR(Status);
Status = pBS->InstallProtocolInterface(
&BsHandle,
&gEfiSmmPowerButtonDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL);
ASSERT_EFI_ERROR(Status);
Status = gSmst2->SmmInstallProtocolInterface(
&Handle,
&gEfiSmmIoTrapDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&gEfiSmmIoTrapDispatch2Protocol);
ASSERT_EFI_ERROR(Status);
Status = pBS->InstallProtocolInterface(
&BsHandle,
&gEfiSmmIoTrapDispatch2ProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL);
ASSERT_EFI_ERROR(Status);
Status = gSmst2->SmiHandlerRegister(ChildDispatcher2, NULL, &RootHandle);
return Status;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: SmmChildDispatch2EntryPoint
//
// Description: SMM Child Dispatcher II module entry point
//
// Input: ImageHandle - Image handle
// *SystemTable - Pointer to system table
//
// Output: EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS SmmChildDispatch2EntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable )
{
EFI_STATUS Status;
BOOLEAN InSmram = FALSE;
InitAmiLib( ImageHandle, SystemTable );
Status = pBS->LocateProtocol(&gEfiSmmBase2ProtocolGuid, NULL, &gSmmBase2);
if (!EFI_ERROR(Status))
{
Status = gSmmBase2->InSmm(gSmmBase2, &InSmram);
if ((!EFI_ERROR(Status)) &&
(InSmram))
{
Status = InitAmiSmmLib( ImageHandle, SystemTable );
if (EFI_ERROR(Status))
return Status;
Status = gSmmBase2->GetSmstLocation(gSmmBase2, &gSmst2);
if (!EFI_ERROR(Status))
{
Status = InSmmFunction(ImageHandle, SystemTable);
return Status;
}
else
{
gSmst2 = NULL;
}
}
else
{
// DXE initialize.
}
}
return EFI_SUCCESS;
}
//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2011, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
|
