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+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2012, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
+
+//**********************************************************************
+// $Header: /Alaska/SOURCE/Modules/RsdpPlus/ManageShadowRam.c 8 3/05/13 4:33a Norlwu $
+//
+// $Revision: 8 $
+//
+// $Date: 3/05/13 4:33a $
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Modules/RsdpPlus/ManageShadowRam.c $
+//
+// 8 3/05/13 4:33a Norlwu
+// [TAG] EIP116590
+// [Category] Bug Fix
+// [Severity] Normal
+// [Symptom] Using HeapToF000 to insert 2 datas with alignment will
+// cause a part of 1st data covered by 2nd data
+// [RootCause] It's wrong to update for gE000BuffLength and
+// gF000BuffLength.
+// [Solution] Use EndOfDataPtr and HeapPtr to calculate BuffLength.
+// [Files] ManageShadowRam.c
+//
+// 7 1/17/13 2:52a Norlwu
+// [TAG] EIP108029
+// [Category] Bug Fix
+// [Severity] Normal
+// [RootCause] Cause by Fastboot enable.
+// [Solution] Add EraseShadowAfterEfiBoot() under in elink
+// ReturnNormalMode.
+// [Files] RsdpPlus.sdl
+// ManageShadowRam.c
+//
+// 6 10/25/12 3:45a Norlwu
+// [TAG] EIP104587
+// [Category] Bug Fix
+// [Severity] Important
+// [Symptom] Update RsdpPlus to 4.6.4.0_RsdpPlus_04 with Core 4.6.5.4.
+// it hang up when exit Shell to legacy boot
+// [RootCause] It's wrong backup data size. So if restore the data into
+// E000 and F000, it will cause the system halt when boot to legacy.
+// [Solution] Change backup size to current usage size.
+// [Files] ManageShadowRam.c
+//
+// 5 10/21/12 11:39p Norlwu
+// Fixed the system halt when exit shell enviroment.
+//
+// 4 9/17/12 11:32p Norlwu
+// [TAG] EIP92735
+// [Category] Improvement
+// [Description] Please help to return the pointer and offset of
+// HeapToF000 in MANAGE_SHADOW_RAM_PROTOCOL
+// [Files] RsdpPlus.c
+// ManageShadowRam.c
+// ManageShadowProtocol.h
+//
+// 3 8/17/12 8:12a Norlwu
+// [TAG] EIP98247
+// [Category] Improvement
+// [Description] [RsdpPlus]Add alignment support in
+// MANAGE_SHADOW_RAM_PROTOCOL
+// [Files] RsdpPlus.sdl
+// RsdpPlus.mak
+// RsdpPlus.c
+// ManageShadowRam.c
+// ManageShadowRam.h
+//
+// 2 7/27/12 6:58a Norlwu
+// [TAG] EIP94704
+// [Category] Bug Fix
+// [Severity] Important
+// [Symptom] Cause the system hatl at post time.
+// [RootCause] ManageShasdow protocl is anot able to installed, when
+// monitor was disconnected.So change the register event to
+// BdsAllDeriverConnectGuid and if locate protocl failure return status
+// continue.
+// [Solution] [HP_DTO_emodule] token DEFAULT_CSM_LAUNCH_POLICY=0 and
+// BIOS hang with FastBoot enable when monitor was disconnected
+// [Files] RsdpPlusLInk.c
+// ManageShadowRam.c
+//
+// 1 2/09/12 3:06a Norlwu
+// [TAG] EIP81756
+// [Category] New Feature
+// [Description] Enhance RspdPlus module.
+// Install Shadow Ram Protocol and shadow ram protocl.
+// [Files] ManageShadowRam.c
+// ShadowRamProtocol.h
+//
+//**********************************************************************
+//<AMI_FHDR_START>
+//
+// Name: ManageShadowRam.c
+//
+// Description:
+//
+//<AMI_FHDR_END>
+//**********************************************************************
+
+#include <AmiDxeLib.h>
+#include <Protocol\ConsoleControl.h>
+#include <token.h>
+#include <AmiCspLib.h>
+#include <Protocol\ManageShadowProtocol.h>
+#include "ShadowRamProtocol.h"
+
+#define BDS_ALL_DRIVERS_CONNECTED_PROTOCOL_GUID \
+ {0xdbc9fd21, 0xfad8, 0x45b0, 0x9e, 0x78, 0x27, 0x15, 0x88, 0x67, 0xcc, 0x93}
+
+//EFI_GUID gConOutStartedGuid = CONSOLE_OUT_DEVICES_STARTED_PROTOCOL_GUID;
+EFI_GUID gAllDriverConnectGuid = BDS_ALL_DRIVERS_CONNECTED_PROTOCOL_GUID;
+EFI_GUID gShdowRamProtocolGuid = SHADOW_RAM_PROTOCOL_GUID;
+EFI_GUID gManageShdowRamProtocolGuid = MANAGE_SHADOW_RAM_PROTOCOL_GUID;
+
+VOID UpdateShadowBeforEfiBoot(VOID);
+VOID EraseShadowAfterEfiBoot(VOID);
+EFI_STATUS HeapToE000(IN UINT8 *pData, UINT32 Align, IN UINTN Length, IN OUT DATA_BUFF_STRUC *pData2 OPTIONAL);
+EFI_STATUS HeapToF000(IN UINT8 *pData, UINT32 Align, IN UINTN Length, IN OUT DATA_BUFF_STRUC *pData2 OPTIONAL);
+
+EFI_HANDLE gShadowRameHandle = NULL;
+EFI_HANDLE gManageShadowRamHandle = NULL;
+UINT8 *gE000HeapPtr = NULL;
+UINT8 *gF000HeapPtr = NULL;
+UINT8 *gESegStore = NULL;
+UINT8 *gFSegStore = NULL;
+UINT8 EsegUserCount = 0, FsegUserCount = 0;
+UINTN gE000BuffLength = 0;
+UINTN gF000BuffLength = 0;
+UINTN gBufferSize = 0x10000;
+
+
+SHADOW_RAM_PROTOCOL gShadowRamProtocol =
+{
+ UpdateShadowBeforEfiBoot,
+ EraseShadowAfterEfiBoot
+};
+
+MANAGE_SHADOW_RAM_PROTOCOL gManageShadowRamProtocol =
+{
+ HeapToE000,
+ HeapToF000
+};
+
+//************** Update Shadow Ram Hook support ****************************
+extern UPDATE_E000_SHDOW_RAM_HOOK UPDATE_E000_SHADOW_RAM_HOOK_LIST EndOfUpdateE000ShadowRamHookList;
+UPDATE_E000_SHDOW_RAM_HOOK* UpdateE000ShdowRamHookList[] = {UPDATE_E000_SHADOW_RAM_HOOK_LIST NULL};
+
+extern UPDATE_F000_SHDOW_RAM_HOOK UPDATE_F000_SHADOW_RAM_HOOK_LIST EndOfUpdateF000ShadowRamHookList;
+UPDATE_F000_SHDOW_RAM_HOOK* UpdateF000ShdowRamHookList[] = {UPDATE_F000_SHADOW_RAM_HOOK_LIST NULL};
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: OemUpdateE000ShdowRamHook
+//
+// Description:
+//
+//
+// Input:
+//
+// Output: VOID
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID OemUpdateE000ShdowRamHook(
+ IN UINT32* pShadowRam,
+ IN UINTN UsageLength
+)
+{
+ UINTN i;
+
+ for (i = 0; UpdateE000ShdowRamHookList[i] != NULL; i++)
+ UpdateE000ShdowRamHookList[i](pShadowRam,UsageLength);
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: OemUpdateF000ShdowRamHook
+//
+// Description:
+//
+//
+// Input: IN UINT32* pShadowRam
+// IN UINTN UsageLength
+//
+// Output: VOID
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID OemUpdateF000ShdowRamHook(
+ IN UINT32* pShadowRam,
+ IN UINTN UsageLength
+)
+{
+ UINTN i;
+
+ for (i = 0; UpdateF000ShdowRamHookList[i] != NULL; i++)
+ UpdateF000ShdowRamHookList[i](pShadowRam,UsageLength);
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: UpdateShadowBeforEfiBoot
+//
+// Description: This is "BeforeEfiBootLaunchHook" elink function.
+// It will store original data of Shadow ram and then copy
+// shadow buff's data to shadow ram.
+//
+// Input: VOID
+//
+// Output: VOID
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID UpdateShadowBeforEfiBoot(VOID)
+{
+ EFI_STATUS Status;
+ UINT32 E000Offset = 0xE0000;
+ UINT32 F000Offset = 0xF0000;
+
+ TRACE((-1,"Entry Update Shadow Ram!!!\n"));
+
+ //unlock shadow ram
+ OemRuntimeShadowRamWrite(TRUE);
+
+ TRACE((-1,"RsdpPlus (UpdateShadowBeforEfiBoot): gE000BuffLength [0x%x] \n",gE000BuffLength));
+
+ if(gE000BuffLength != 0){
+ Status = pBS->AllocatePool(
+ EfiBootServicesData,
+ gE000BuffLength,
+ &gESegStore
+ );
+ ASSERT_EFI_ERROR(Status);
+ if(EFI_ERROR(Status))
+ return;
+
+ pBS->CopyMem(gESegStore,(UINT32*)E000Offset,gE000BuffLength);
+ MemSet((VOID*)E000Offset,gE000BuffLength, 0);
+ pBS->CopyMem((UINT32*)E000Offset,gE000HeapPtr,gE000BuffLength);
+ TRACE((-1,"E000 Info : Data length %d bytes, There are %d data in Shadow Ram!!!\n",gE000BuffLength, EsegUserCount));
+ OemUpdateE000ShdowRamHook((UINT32*)E000Offset, gE000BuffLength);
+ }
+
+ TRACE((-1,"RsdpPlus (UpdateShadowBeforEfiBoot): gF000BuffLength [0x%x] \n",gF000BuffLength));
+ if(gF000BuffLength != 0){
+ Status = pBS->AllocatePool(
+ EfiBootServicesData,
+ gF000BuffLength,
+ &gFSegStore
+ );
+ ASSERT_EFI_ERROR(Status);
+ if(EFI_ERROR(Status))
+ return;
+
+ pBS->CopyMem(gFSegStore,(UINT32*)F000Offset,gF000BuffLength);
+ MemSet((VOID*)F000Offset,gF000BuffLength, 0);
+ pBS->CopyMem((UINT32*)F000Offset,gF000HeapPtr,gF000BuffLength);
+ TRACE((-1,"F000 Info : Data length %d bytes, There are %d data in Shadow Ram!!!\n",gF000BuffLength, FsegUserCount));
+ OemUpdateF000ShdowRamHook((UINT32*)F000Offset, gE000BuffLength);
+ }
+
+ //Lock shadow ram
+ OemRuntimeShadowRamWrite(FALSE);
+
+ return;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: EraseShadowAfterEfiBoot
+//
+// Description: This is "AfterEfiBootLaunchHook" elink function.
+// It will restore original data to Shadow ram.
+//
+// Input: VOID
+//
+// Output: VOID
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID EraseShadowAfterEfiBoot(VOID)
+{
+ UINT32 E000Offset = 0xE0000;
+ UINT32 F000Offset = 0xF0000;
+
+ if(gE000BuffLength == 0 && gF000BuffLength == 0) return;
+
+ TRACE((-1,"Store Shadow Ram to default!!!\n"));
+ OemRuntimeShadowRamWrite(TRUE);
+
+ if(gE000BuffLength != 0){
+ pBS->CopyMem((UINT32*)E000Offset,gESegStore,gE000BuffLength);
+ pBS->FreePool(gESegStore);
+ gE000BuffLength = 0;
+ EsegUserCount = 0;
+ }
+
+ if(gF000BuffLength != 0){
+ pBS->CopyMem((UINT32*)F000Offset,gFSegStore,gF000BuffLength);
+ pBS->FreePool(gFSegStore);
+ gF000BuffLength = 0;
+ FsegUserCount = 0;
+ }
+
+ OemRuntimeShadowRamWrite(FALSE);
+
+ return;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: HeapToE000
+//
+// Description: This is protocol function.
+// According to input data and copy those datas to buffer.
+//
+// Input: UINT8 *pData
+// UINT32 Align
+// UINTN Length
+// DATA_BUFF_STRUC *pData2 OPTIONAL
+//
+// Output: EFI_STATUS
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS HeapToE000(
+ IN UINT8 *pData,
+ IN UINT32 Align,
+ IN UINTN Length,
+ IN OUT DATA_BUFF_STRUC *pData2 OPTIONAL)
+{
+
+ UINT8 *DataPtr = NULL;
+ UINT8 *EndOfDataPtr = NULL;
+
+ if(pData == NULL || Length == 0)
+ return EFI_INVALID_PARAMETER;
+
+ if((gE000BuffLength + Length) > gBufferSize)
+ return EFI_BUFFER_TOO_SMALL;
+
+ if(Align != 0){
+ DataPtr = (UINT8*)(( (UINT32)((UINTN)gE000HeapPtr + gE000BuffLength)& ~(Align - 1)) + Align);
+ }else{
+ DataPtr = gE000HeapPtr + gE000BuffLength;
+ }
+
+ if(pData2 != NULL){
+ pData2->BuffAddress = (UINTN)gE000HeapPtr;
+ //pData2->UsedLength = gE000BuffLength;
+ pData2->UsedLength = (UINTN)(DataPtr - gE000HeapPtr);
+ }
+
+ EndOfDataPtr = (UINT8*)((UINTN)DataPtr + Length);
+ TRACE((-1,"RsdpPlus : Align [0x%x],DataPtr [0x%lx],EndOfDataPtr [0x%lx] \n",Align,DataPtr,EndOfDataPtr));
+
+ if(EndOfDataPtr > (gE000HeapPtr + gBufferSize))
+ return EFI_BUFFER_TOO_SMALL;
+
+ pBS->CopyMem(DataPtr, pData, Length);
+
+ //gE000BuffLength = gE000BuffLength + (UINTN)(EndOfDataPtr - DataPtr);
+ gE000BuffLength = (UINTN)(EndOfDataPtr - gE000HeapPtr);
+ TRACE((-1,"RsdpPlus (HeapToE000): gE000BuffLength [0x%x] \n",gE000BuffLength));
+
+ EsegUserCount++;
+
+ return EFI_SUCCESS;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: HeapToF000
+//
+// Description: This is protocol function.
+// According to input data and copy those datas to buffer.
+//
+// Input: UINT8 *pData
+// UINT32 Align
+// UINTN Length
+// DATA_BUFF_STRUC *pData2 OPTIONAL
+//
+// Output: EFI_STATUS
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS HeapToF000(
+ IN UINT8 *pData,
+ IN UINT32 Align,
+ IN UINTN Length,
+ IN OUT DATA_BUFF_STRUC *pData2 OPTIONAL)
+{
+ UINT8 *DataPtr = NULL;
+ UINT8 *EndOfDataPtr = NULL;
+
+
+ if(pData == NULL || Length == 0)
+ return EFI_INVALID_PARAMETER;
+
+ if((gF000BuffLength + Length) > gBufferSize)
+ return EFI_BUFFER_TOO_SMALL;
+
+ if(Align != 0){
+ DataPtr = (UINT8*)(( (UINT32)((UINTN)gF000HeapPtr + gF000BuffLength)& ~(Align - 1)) + Align);
+ }else{
+ DataPtr = gF000HeapPtr + gF000BuffLength;
+ }
+
+ if(pData2 != NULL){
+ pData2->BuffAddress = (UINTN)gF000HeapPtr;
+ //pData2->UsedLength = gF000BuffLength;
+ pData2->UsedLength = (UINTN)(DataPtr - gF000HeapPtr);
+ }
+
+ EndOfDataPtr = (UINT8*)((UINTN)DataPtr + Length);
+ TRACE((-1,"RsdpPlus : Align [0x%x],DataPtr [0x%lx],EndOfDataPtr [0x%lx] \n",Align,DataPtr,EndOfDataPtr));
+
+ if(EndOfDataPtr > (gF000HeapPtr + gBufferSize))
+ return EFI_BUFFER_TOO_SMALL;
+
+ pBS->CopyMem(DataPtr, pData, Length);
+
+ //gF000BuffLength = gF000BuffLength + (UINTN)(EndOfDataPtr - DataPtr);
+ gF000BuffLength = (UINTN)(EndOfDataPtr - gF000HeapPtr);
+ TRACE((-1,"RsdpPlus (HeapToF000): gF000BuffLength [0x%x] \n",gF000BuffLength));
+
+ FsegUserCount++;
+
+ return EFI_SUCCESS;
+}
+
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: ShadowRamCallBack
+//
+// Description: Install Shadow Ram Protocol.
+//
+// Input: EFI_EVENT Event
+// VOID *Context
+//
+// Output: EFI_STATUS Status
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS ShadowRamCallBack(IN EFI_EVENT Event,IN VOID *Context)
+{
+ EFI_STATUS Status;
+
+ Status = pBS->InstallProtocolInterface(
+ &gShadowRameHandle,
+ &gShdowRamProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &gShadowRamProtocol
+ );
+ if(EFI_ERROR(Status)) return Status;
+ pBS->CloseEvent(Event);
+
+ return Status;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: ManageShadowRamEntryPoint
+//
+// Description: Entry point for RsdpPlus initialization.
+// Register a ConOutStarted protocol callback function.
+// And allocate two buff for Manage Shadow Ram protocol used.
+// Install Manage Shadow Ram protocol.
+//
+// Input: EFI_HANDLE ImageHandle
+// EFI_SYSTEM_TABLE *SystemTable
+//
+// Output: EFI_STATUS Status
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS ManageShadowRamEntryPoint(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+)
+{
+ EFI_EVENT Event;
+ EFI_STATUS Status;
+ VOID *Registration;
+ static EFI_PHYSICAL_ADDRESS E000PagePtr;
+ static EFI_PHYSICAL_ADDRESS F000PagePtr;
+
+ InitAmiLib(ImageHandle,SystemTable);
+
+ Status = RegisterProtocolCallback(
+ &gAllDriverConnectGuid,
+ ShadowRamCallBack,
+ NULL, // Context
+ &Event,
+ &Registration
+ );
+ if(EFI_ERROR(Status)) return Status;
+
+ Status = pBS->AllocatePages(
+ AllocateAnyPages,
+ EfiBootServicesData,
+ 16,
+ &E000PagePtr);
+ ASSERT_EFI_ERROR(Status);
+ gE000HeapPtr = (UINT8*)E000PagePtr;
+ TRACE((-1,"RsdpPlus : gE000HeapPtr [0x%lx] \n",gE000HeapPtr));
+
+ Status = pBS->AllocatePages(
+ AllocateAnyPages,
+ EfiBootServicesData,
+ 16,
+ &F000PagePtr);
+ ASSERT_EFI_ERROR(Status);
+ gF000HeapPtr = (UINT8*)F000PagePtr;
+ TRACE((-1,"RsdpPlus : gF000HeapPtr [0x%lx] \n",gF000HeapPtr));
+
+ Status = pBS->InstallProtocolInterface(
+ &gManageShadowRamHandle,
+ &gManageShdowRamProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &gManageShadowRamProtocol
+ );
+ return Status;
+}
+
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2012, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
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