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Diffstat (limited to 'Board/EM/MeWrapper/AmtWrapper/Dxe/AsfSupport.c')
| -rw-r--r-- | Board/EM/MeWrapper/AmtWrapper/Dxe/AsfSupport.c | 1919 |
1 files changed, 1919 insertions, 0 deletions
diff --git a/Board/EM/MeWrapper/AmtWrapper/Dxe/AsfSupport.c b/Board/EM/MeWrapper/AmtWrapper/Dxe/AsfSupport.c new file mode 100644 index 0000000..425a608 --- /dev/null +++ b/Board/EM/MeWrapper/AmtWrapper/Dxe/AsfSupport.c @@ -0,0 +1,1919 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (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/SharkBayRefCodes/ME/AmtWrapper/AmtWrapperDxe/AsfSupport.c 10 5/14/14 9:52p Tristinchou $ +// +// $Revision: 10 $ +// +// $Date: 5/14/14 9:52p $ +// +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/ME/AmtWrapper/AmtWrapperDxe/AsfSupport.c $ +// +// 10 5/14/14 9:52p Tristinchou +// [TAG] EIP167030 +// [Category] Improvement +// [Description] Remove the variable runtime attribute and keep original +// attributes. +// +// 9 1/08/14 10:23p Tristinchou +// [TAG] EIP144445 +// [Category] Bug Fix +// [Severity] Normal +// [Symptom] AMT IDER Floppy failed on HSW ULT +// [RootCause] IDER Device ID is different on HSW ULT +// [Solution] Determine the bus, device and function number directly +// +// 8 9/24/13 4:22a Klzhan +// [TAG] EIPNone +// [Category] Improvement +// [Description] Raise TPL is not needed +// +// 7 4/08/13 3:10a Klzhan +// [TAG] EIPNone +// [Category] Bug Fix +// [Severity] Important +// [Symptom] TC015 fail +// +// 6 3/01/13 4:38a Klzhan +// [TAG] EIPNone +// [Category] Improvement +// [Description] Boot to legacy when UEFI boot fail. +// Correct secure boot fail behavior +// +// 5 2/25/13 7:05a Klzhan +// [TAG] EIP113605 +// [Category] Improvement +// [Description] Support IDER Floppy BOOT. +// +// 4 10/30/12 8:30a Klzhan +// Improvement : Boot to Legacy when EFI boot fail. +// Improvement : Correct Secure IDER Boot. +// +// 3 8/14/12 7:26a Klzhan +// Support UEFI IDER boot. +// +// 2 4/24/12 12:36a Klzhan +// Update modulepart to latest +// +// 1 2/08/12 1:08a Klzhan +// Initial Check in +// +// 3 7/08/11 4:20a Klzhan +// +// 2 6/16/11 4:56a Klzhan +// Update IDER related code. +// +// 1 2/25/11 1:43a Klzhan +// Initial Check-in +// +// 1 12/03/10 5:10a Klzhan +// Initial Check-in. +// +// +//********************************************************************** + +//<AMI_FHDR_START> +//---------------------------------------------------------------------------- +// +// Name: AsfSupport.c +// +// Description: +// +//---------------------------------------------------------------------------- +//<AMI_FHDR_END> +/*++ + This file contains an 'Intel Peripheral Driver' and is + licensed for Intel CPUs and chipsets under the terms of your + license agreement with Intel or your vendor. This file may + be modified by the user, subject to additional terms of the + license agreement +--*/ + +/*++ + +Copyright (c) 2005-2008 Intel Corporation. All rights reserved +This software and associated documentation (if any) is furnished +under a license and may only be used or copied in accordance +with the terms of the license. Except as permitted by such +license, no part of this software or documentation may be +reproduced, stored in a retrieval system, or transmitted in any +form or by any means without the express written consent of +Intel Corporation. + + +Module Name: + + AsfSupport.c + +Abstract: + + Support routines for ASF boot options in the BDS + +--*/ + +#include "AsfSupport.h" + +#pragma pack(push,1) + +typedef struct { + UINT32 Attributes; + UINT16 FilePathListLength; +} EFI_LOAD_OPTION; +#pragma pack(pop) + +// +// Global variables +// +EFI_ASF_BOOT_OPTIONS *mAsfBootOptions; + +static EFI_DEVICE_PATH_PROTOCOL EndDevicePath[] = { + END_DEVICE_PATH_TYPE, + END_ENTIRE_DEVICE_PATH_SUBTYPE, + END_DEVICE_PATH_LENGTH, + 0 +}; + +// +// Legacy Device Order +// +typedef struct { + UINT32 Type; + UINT16 Length; + UINT16 Device[1]; +} LEGACY_DEVICE_ORDER; + +#define LEGACY_DEV_ORDER_GUID \ + { \ + 0xA56074DB, 0x65FE, 0x45F7, 0xBD, 0x21, 0x2D, 0x2B, 0xDD, 0x8E, 0x96, 0x52 \ + } + +EFI_GUID gLegacyDeviceOrderGuid = LEGACY_DEV_ORDER_GUID; + +EFI_STATUS +BdsAsfInitialization ( + IN VOID + ) +/*++ + +Routine Description: + + Retrieve the ASF boot options previously recorded by the ASF driver. + +Arguments: + + None. + +Returns: + + Initialize Boot Options global variable and AMT protocol + +--*/ +{ + EFI_STATUS Status; + EFI_ALERT_STANDARD_FORMAT_PROTOCOL *Asf; + + mAsfBootOptions = NULL; + + // + // Amt Library Init + // + Status = AmtLibInit (); + if (EFI_ERROR (Status)) { + DEBUG ((EFI_D_ERROR, "Info : Error init AmtLibInit -> %r\n", Status)); + return Status; + } + // + // Get Protocol for ASF + // + Status = gBS->LocateProtocol ( + &gEfiAlertStandardFormatProtocolGuid, + NULL, + &Asf + ); + if (EFI_ERROR (Status)) { + DEBUG ((EFI_D_ERROR, "Info : Error gettings ASF protocol -> %r\n", Status)); + return Status; + } + + Status = Asf->GetBootOptions (Asf, &mAsfBootOptions); + + return Status; +} + +BDS_COMMON_OPTION * +BdsCreateBootOption ( + IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, + IN CHAR16 *Description + ) +/*++ + +Routine Description: + + This function will create a BootOption from the give device path and + description string. + +Arguments: + + DevicePath - The device path which the option represent + Description - The description of the boot option + +Returns: + + BDS_COMMON_OPTION - A BDS_COMMON_OPTION pointer + +--*/ +{ + BDS_COMMON_OPTION *Option; + + Option = EfiLibAllocateZeroPool (sizeof (BDS_COMMON_OPTION)); + if (Option == NULL) { + return NULL; + } + + Option->Signature = BDS_LOAD_OPTION_SIGNATURE; + Option->DevicePath = EfiLibAllocateZeroPool (EfiDevicePathSize (DevicePath)); + EfiCopyMem (Option->DevicePath, DevicePath, EfiDevicePathSize (DevicePath)); + + Option->Attribute = LOAD_OPTION_ACTIVE; + Option->Description = EfiLibAllocateZeroPool (EfiStrSize (Description)); + EfiCopyMem (Option->Description, Description, EfiStrSize (Description)); + + return Option; +} + +EFI_DEVICE_PATH_PROTOCOL * +BdsCreateShellDevicePath ( + VOID + ) +/*++ + +Routine Description: + + This function will create a SHELL BootOption to boot. + +Arguments: + + None. + +Returns: + + Shell Device path for booting. + +--*/ +{ + UINTN FvHandleCount; + EFI_HANDLE *FvHandleBuffer; + UINTN Index; + EFI_STATUS Status; +#if (PI_SPECIFICATION_VERSION < 0x00010000) + EFI_FIRMWARE_VOLUME_PROTOCOL *Fv; +#else + EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv; +#endif + EFI_FV_FILETYPE Type; + UINTN Size; + EFI_FV_FILE_ATTRIBUTES Attributes; + UINT32 AuthenticationStatus; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + MEDIA_FW_VOL_FILEPATH_DEVICE_PATH ShellNode; + + DevicePath = NULL; + Status = EFI_SUCCESS; + + gBS->LocateHandleBuffer ( + ByProtocol, + #if (PI_SPECIFICATION_VERSION < 0x00010000) + &gEfiFirmwareVolumeProtocolGuid, + #else + &gEfiFirmwareVolume2ProtocolGuid, + #endif + NULL, + &FvHandleCount, + &FvHandleBuffer + ); + + for (Index = 0; Index < FvHandleCount; Index++) { + gBS->HandleProtocol ( + FvHandleBuffer[Index], + #if (PI_SPECIFICATION_VERSION < 0x00010000) + &gEfiFirmwareVolumeProtocolGuid, + #else + &gEfiFirmwareVolume2ProtocolGuid, + #endif + (VOID **) &Fv + ); + + Status = Fv->ReadFile ( + Fv, + &gEfiShellFileGuid, + NULL, + &Size, + &Type, + &Attributes, + &AuthenticationStatus + ); + if (EFI_ERROR (Status)) { + // + // Skip if no shell file in the FV + // + continue; + } else { + // + // Found the shell + // + break; + } + } + + if (EFI_ERROR (Status)) { + // + // No shell present + // + if (FvHandleCount) { + gBS->FreePool (FvHandleBuffer); + } + + return NULL; + } + // + // Build the shell boot option + // + DevicePath = EfiDevicePathFromHandle (FvHandleBuffer[Index]); + + // + // Build the shell device path + // + ShellNode.Header.Type = MEDIA_DEVICE_PATH; + ShellNode.Header.SubType = MEDIA_FV_FILEPATH_DP; + SetDevicePathNodeLength (&ShellNode.Header, sizeof (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH)); + EfiCopyMem (&ShellNode.NameGuid, &gEfiShellFileGuid, sizeof (EFI_GUID)); + DevicePath = EfiAppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *) &ShellNode); + + if (FvHandleCount) { + gBS->FreePool (FvHandleBuffer); + } + + return DevicePath; +} + +static +EFI_DEVICE_PATH_PROTOCOL * +BdsCreatePxeDevicePath ( + IN UINT16 DeviceIndex + ) +/*++ + +Routine Description: + + This function will create a PXE BootOption to boot. + +Arguments: + + DeviceIndex - PXE handle index + +Returns: + + PXE Device path for booting. + +--*/ +{ + UINTN Index; + EFI_STATUS Status; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + UINTN NumberLoadFileHandles; + EFI_HANDLE *LoadFileHandles; + VOID *ProtocolInstance; + + DevicePath = NULL; + Status = EFI_SUCCESS; + + // + // We want everything connected up for PXE + // + BdsLibConnectAllDriversToAllControllers (); + + // + // Parse Network Boot Device + // + gBS->LocateHandleBuffer ( + ByProtocol, + &gEfiSimpleNetworkProtocolGuid, + NULL, + &NumberLoadFileHandles, + &LoadFileHandles + ); + for (Index = 0; Index < NumberLoadFileHandles; Index++) { + Status = gBS->HandleProtocol ( + LoadFileHandles[Index], + &gEfiLoadFileProtocolGuid, + (VOID **) &ProtocolInstance + ); + if (EFI_ERROR (Status)) { + // + // try next handle + // + continue; + } else { + if (Index == DeviceIndex) { + // + // Found a PXE handle + // + break; + } else { + Status = EFI_UNSUPPORTED; + } + } + } + + if (EFI_ERROR (Status)) { + // + // No PXE present + // + if (NumberLoadFileHandles) { + gBS->FreePool (LoadFileHandles); + } + + return NULL; + } + // + // Build the PXE device path + // + DevicePath = EfiDevicePathFromHandle (LoadFileHandles[Index]); + + if (NumberLoadFileHandles) { + gBS->FreePool (LoadFileHandles); + } + + return DevicePath; +} + +static +VOID +GetAmtBusDevFcnVal ( + OUT UINT32 *Bus, + OUT UINT32 *Device, + OUT UINT32 *Function + ) +/*++ + +Routine Description: + + This function will get Bus, Device and Function. + +Arguments: + + Bus - AMT Bus + Device - AMT Device + Function - AMT Function + +Returns: + + None. + +--*/ +{ + UINT32 Index; + EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo; + UINT64 Address; + DATA32_UNION Data32Union; + EFI_STATUS Status; + + *Bus = 0; + *Device = 0; + *Function = 0; + + // + // Locate root bridge IO protocol + // + Status = gBS->LocateProtocol (&gEfiPciRootBridgeIoProtocolGuid, NULL, &PciRootBridgeIo); + ASSERT_EFI_ERROR (Status); + + // + // Need to fill in IDER bus dev function so find this for Tekoa i82573E here. + // + for (Index = 0; Index < 0x255; Index++) { + Address = EFI_PCI_ADDRESS ( + Index, + ME_DEVICE_NUMBER, // + IDER_FUNCTION_NUMBER, // fun 2 IDER capability + PCI_VENDOR_ID_OFFSET + ); + Status = PciRootBridgeIo->Pci.Read ( + PciRootBridgeIo, + EfiPciWidthUint32, + Address, + 1, + &Data32Union + ); + if ((Data32Union.Data16[0] == V_ME_IDER_VENDOR_ID) && + (Data32Union.Data16[1] == V_ME_IDER_DEVICE_ID)) { + // + // LOM i82573E is always Device 0 and function 2 so or this 8 bit value of 0x02 + // into bus number discovered. Bus # upper byte and Dev-Fcn lower byte. + // + *Bus = Index; + *Device = ME_DEVICE_NUMBER; + *Function = IDER_FUNCTION_NUMBER; + break; + } + } +} + +UINTN +GetFirstIndexByType ( + UINT16 DevType + ) +/*++ + +Routine Description: + + Boot HDD by BIOS Default Priority + +Arguments: + + DevType - Boot device whose device type + +Returns: + + None + +--*/ +{ + EFI_STATUS Status; + UINTN LegacyDevOrderSize; + LEGACY_DEVICE_ORDER *LegacyDevOrder; + UINTN Index; + UINT8 *p; + UINTN o; + + Index = 0; + o = 0; + + LegacyDevOrderSize = 0; + LegacyDevOrder = NULL; + + Status = gRT->GetVariable ( + L"LegacyDevOrder", + &gLegacyDeviceOrderGuid, + NULL, + &LegacyDevOrderSize, + NULL + ); + + if (Status == EFI_BUFFER_TOO_SMALL) { + LegacyDevOrder = EfiLibAllocateZeroPool (LegacyDevOrderSize); + if (LegacyDevOrder != NULL) { + Status = gRT->GetVariable ( + L"LegacyDevOrder", + &gLegacyDeviceOrderGuid, + NULL, + &LegacyDevOrderSize, + LegacyDevOrder + ); + if (!EFI_ERROR (Status)) { + p = (UINT8 *) LegacyDevOrder; + o = 0; + for (o = 0; o < LegacyDevOrderSize; o += sizeof (LegacyDevOrder->Type) + LegacyDevOrder->Length) { + LegacyDevOrder = (LEGACY_DEVICE_ORDER *) (p + o); + if (LegacyDevOrder->Type == DevType) { + Index = LegacyDevOrder->Device[0]; + } + } + } + } + } + + return Index; +} + +static +EFI_STATUS +RefreshBbsTableForBoot ( + IN UINT16 DeviceIndex, + IN UINT16 DevType, + IN UINT16 BbsCount, + IN OUT BBS_TABLE *BbsTable + ) +/*++ + +Routine Description: + + Update the table with our required boot device + +Arguments: + + DeviceIndex - Boot device whose device index + DevType - Boot device whose device type + BbsCount - Number of BBS_TABLE structures + BbsTable - BBS entry + +Returns: + + EFI_STATUS + +--*/ +{ + EFI_STATUS Status; + UINTN Index; + UINT16 BootDeviceIndex; + UINT16 TempIndex; + + Status = EFI_NOT_FOUND; + TempIndex = 1; + + BootDeviceIndex = DeviceIndex; + + // + // Find the first present boot device whose device type + // matches the DevType, we use it to boot first. This is different + // from the other Bbs table refresh since we are looking for the device type + // index instead of the first device to match the device type. + // + // And set other present boot devices' priority to BBS_UNPRIORITIZED_ENTRY + // their priority will be set by LegacyBiosPlatform protocol by default + // + if (DeviceIndex > 0) { + for (Index = 0; Index < BbsCount; Index++) { + if (BbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) { + continue; + } + + BbsTable[Index].BootPriority = BBS_DO_NOT_BOOT_FROM; + + if (BbsTable[Index].DeviceType == DevType) { + if (TempIndex++ == DeviceIndex) { + BbsTable[Index].BootPriority = 0; + Status = EFI_SUCCESS; + continue; + } + } + } + } else { + // + // Boot HDD by BIOS Default Priority + // + Index = GetFirstIndexByType (DevType); + BbsTable[Index].BootPriority = 0; + Status = EFI_SUCCESS; + } + + return Status; +} + +static +EFI_STATUS +RefreshBbsTableForIdeRBoot ( + IN UINT16 DeviceIndex, + IN UINT16 DevType, + IN UINT16 BbsCount, + IN OUT BBS_TABLE *BbsTable + ) +/*++ + +Routine Description: + + Update the table with IdeR boot device + +Arguments: + + DeviceIndex - Boot device whose device index + DevType - Boot device whose device type + BbsCount - Number of BBS_TABLE structures + BbsTable - BBS entry + +Returns: + + EFI_STATUS + +--*/ +{ + EFI_STATUS Status; + UINTN Index; + BOOLEAN IderDeviceFound; + + Status = EFI_NOT_FOUND; + + IderDeviceFound = FALSE; + + // + // Find the first present boot device whose device type + // matches the DevType, we use it to boot first. + // + // And set other present boot devices' priority to BBS_DO_NOT_BOOT_FROM + // their priority will be set by LegacyBiosPlatform protocol by default + // + for (Index = 0; Index < BbsCount; Index++) { + if (BBS_IGNORE_ENTRY == BbsTable[Index].BootPriority) { + continue; + } + + BbsTable[Index].BootPriority = BBS_DO_NOT_BOOT_FROM; + + if ( (BbsTable[Index].Bus == ME_BUS) && + (BbsTable[Index].Device == ME_DEVICE_NUMBER) && + (BbsTable[Index].Function == IDER_FUNCTION_NUMBER) ) { + if (DeviceIndex == 0 && IderDeviceFound != TRUE) { + BbsTable[Index].BootPriority = 0; + IderDeviceFound = TRUE; + Status = EFI_SUCCESS; + } else { + DeviceIndex--; + } + + continue; + } + } + + return Status; +} +static +EFI_DEVICE_PATH_PROTOCOL * +BuildDevicePathFromBootOrder +( + VOID +) +{ + UINT8 BootMediaType = 0; + UINT8 BootMediaSubType = 0; + BOOLEAN IDERBoot = FALSE, IDERFloppy = FALSE; + EFI_DEVICE_PATH_PROTOCOL *DevicePath = NULL; + UINT16 *BootOrder; + EFI_LOAD_OPTION *BootOption; + UINTN BootOrderSize; + UINTN BootOptionSize; + CHAR16 BootVarName[9]; + UINTN i; + EFI_STATUS Status; + EFI_DEVICE_PATH_PROTOCOL *Dp, *DevicePathNode; + EFI_DEVICE_PATH_PROTOCOL *DummyDp; + UINTN BufferSize = 0; + if (ActiveManagementEnableIdeR ()) { + // + // Check if any media exist in Ider device + // + if (BdsCheckIderMedia ()) { + + // IDER Floppy + if(mAsfBootOptions->SpecialCommandParam == 1) + { + IDERFloppy = TRUE; + } + + // IDER CD + if((mAsfBootOptions->SpecialCommandParam == 0x101) || + (mAsfBootOptions->SpecialCommandParam == 0x103)) + { + BootMediaType = MEDIA_DEVICE_PATH; + BootMediaSubType = MEDIA_CDROM_DP; + } + IDERBoot = TRUE; + } + }else + { + switch (mAsfBootOptions->SpecialCommand) { + case FORCE_PXE: + if (mAsfBootOptions->SpecialCommandParam != 0) { + // + // ASF spec says 0 currently only option + // + return NULL; + } + BootMediaType = MESSAGING_DEVICE_PATH; + BootMediaSubType = MSG_MAC_ADDR_DP; + break; + + case FORCE_HARDDRIVE: + case FORCE_SAFEMODE: + BootMediaType = MEDIA_DEVICE_PATH; + BootMediaSubType = MEDIA_HARDDRIVE_DP; + break; + + case FORCE_DIAGNOSTICS: + if (mAsfBootOptions->SpecialCommandParam != 0) { + // + // ASF spec says 0 currently only option + // + return NULL; + } + + DevicePath = BdsCreateShellDevicePath (); + + // + // We want everything connected up for shell + // + BdsLibConnectAllDriversToAllControllers (); + break; + + case FORCE_CDDVD: + BootMediaType = MEDIA_DEVICE_PATH; + BootMediaSubType = MEDIA_CDROM_DP; + break; + + default: + return NULL; + break; + } + }//else IDER check + // Get Device Path from BootXXXX + BootOrder = NULL; + BootOption = NULL; + BootOrderSize = 0; + + Status = gRT->GetVariable( + L"BootOrder", + &gEfiGlobalVariableGuid, + NULL, + &BootOrderSize, + NULL + ); + + if (Status == EFI_BUFFER_TOO_SMALL) + { + BootOrder = EfiLibAllocateZeroPool(BootOrderSize); + if (BootOrder != NULL) + { + Status = gRT->GetVariable( + L"BootOrder", + &gEfiGlobalVariableGuid, + NULL, + &BootOrderSize, + BootOrder + ); + if (!EFI_ERROR(Status)) + { + for (i=0; i<BootOrderSize/sizeof(UINT16); i++) + { + SPrint(BootVarName, sizeof(BootVarName), L"Boot%04x", BootOrder[i] ); + BootOptionSize = 0; + Status = gRT->GetVariable( + BootVarName, + &gEfiGlobalVariableGuid, + NULL, + &BootOptionSize, + NULL + ); + if (Status == EFI_BUFFER_TOO_SMALL) + { + BootOption = EfiLibAllocateZeroPool(BootOptionSize); + if (BootOption != NULL) + { + Status = gRT->GetVariable( + BootVarName, + &gEfiGlobalVariableGuid, + NULL, + &BootOptionSize, + BootOption); + if (!EFI_ERROR(Status)) + { + Dp = (EFI_DEVICE_PATH_PROTOCOL *) ( + // + // skip the header + // + (UINT8 *) (BootOption + 1) + // + // skip the string + // + + (EfiStrLen ((CHAR16 *) (BootOption + 1)) + 1) * sizeof (CHAR16)); + DevicePathNode = Dp; + while (!EfiIsDevicePathEnd (DevicePathNode)) + { + // Skip USB device + /* + if((DevicePathNode->Type == MESSAGING_DEVICE_PATH) && + (DevicePathNode->SubType == MSG_USB_DP)) + break; + */ + + if( IDERBoot && + (DevicePathNode->Type == MESSAGING_DEVICE_PATH) && + (DevicePathNode->SubType == MSG_SATA_DP)) + break; + + // Do something special for IDER Floppy, + // In AMT commander tool, If redirect to Floppy and CD image + // The device path are almost the same + if(IDERFloppy && + (DevicePathNode->Type == MESSAGING_DEVICE_PATH) && + (DevicePathNode->SubType == MSG_ATAPI_DP)) + { + EFI_DEVICE_PATH_PROTOCOL *tDP = + EfiNextDevicePathNode (DevicePathNode); + // IDER CD image has Next Device Path Node, but Floppy doesn't + if(EfiIsDevicePathEnd (tDP)) + { + // Correct Pointer of DP, Fix freepool hang issue + BufferSize = + (UINTN)((UINTN *)BootOptionSize - + ((UINTN *)Dp - + (UINTN *)BootOption))/sizeof(UINT8); + + Status = gBS->AllocatePool( + EfiBootServicesData, BufferSize, &DummyDp ); + + if(!EFI_ERROR(Status)) + { + gBS->CopyMem( + (VOID*)DummyDp, (VOID*)Dp, BufferSize ); + } + else + { + Status = gBS->FreePool(BootOption); + Status = gBS->FreePool(BootOrder); + return NULL; + } + Status = gBS->FreePool(BootOption); + Status = gBS->FreePool(BootOrder); + return DummyDp; + } + break; + } + if((DevicePathNode->Type == BootMediaType) && + (DevicePathNode->SubType == BootMediaSubType)) + { + // Correct Pointer of DP, Fix freepool hang issue + BufferSize = + (UINTN)((UINTN *)BootOptionSize - + ((UINTN *)Dp - + (UINTN *)BootOption))/sizeof(UINT8); + + Status = gBS->AllocatePool( + EfiBootServicesData, BufferSize, &DummyDp ); + + if(!EFI_ERROR(Status)) + { + gBS->CopyMem( + (VOID*)DummyDp, (VOID*)Dp, BufferSize ); + } + else + { + Status = gBS->FreePool(BootOption); + Status = gBS->FreePool(BootOrder); + return NULL; + + } + Status = gBS->FreePool(BootOption); + Status = gBS->FreePool(BootOrder); + return DummyDp; + } + + DevicePathNode = EfiNextDevicePathNode (DevicePathNode); + } + } + gBS->FreePool (BootOption); + } + } + } + } + gBS->FreePool (BootOrder); + } + } + + return DevicePath; +} +static +EFI_DEVICE_PATH_PROTOCOL * +BdsCreateLegacyBootDevicePath ( + IN UINT16 DeviceType, + IN UINT16 DeviceIndex, + IN BOOLEAN IdeRBoot + ) +/*++ + +Routine Description: + + Build the BBS Device Path for this boot selection + +Arguments: + + DeviceType - Boot device whose device type + DeviceIndex - Boot device whose device index + IdeRBoot - If IdeRBoot is TRUE then check Ider device + +Returns: + + EFI_STATUS + +--*/ +{ + EFI_LEGACY_BIOS_PROTOCOL *LegacyBios; + BBS_BBS_DEVICE_PATH BbsDevicePathNode; + BBS_TABLE *BbsTable; + UINT16 HddCount; + UINT16 BbsCount; + HDD_INFO *LocalHddInfo; + UINT16 Index; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + EFI_STATUS Status; + + HddCount = 0; + BbsCount = 0; + LocalHddInfo = NULL; + + Index = DeviceIndex; + + // + // Make sure the Legacy Boot Protocol is available + // + Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, &LegacyBios); + if (EFI_ERROR (Status)) { + return NULL; + } + // + // Get BBS table instance + // + Status = LegacyBios->GetBbsInfo ( + LegacyBios, + &HddCount, + &LocalHddInfo, + &BbsCount, + &BbsTable + ); + if (EFI_ERROR (Status)) { + return NULL; + } + // + // For debug + // + PrintBbsTable (BbsTable); + + // + // Update the table with our required boot device + // + if (IdeRBoot) { + Status = RefreshBbsTableForIdeRBoot ( + Index, + DeviceType, + BbsCount, + BbsTable + ); + } else { + Status = RefreshBbsTableForBoot ( + Index, + DeviceType, + BbsCount, + BbsTable + ); + } + // + // For debug + // + PrintBbsTable (BbsTable); + + if (EFI_ERROR (Status)) { + // + // Device not found - do normal boot + // + gST->ConOut->OutputString ( + gST->ConOut, + L"Can't Find Boot Device by Boot Option !!\r\n" + ); + while(1); + return NULL; + } + // + // Build the BBS Device Path for this boot selection + // + DevicePath = EfiLibAllocateZeroPool (sizeof (EFI_DEVICE_PATH_PROTOCOL)); + if (DevicePath == NULL) { + return NULL; + } + + BbsDevicePathNode.Header.Type = BBS_DEVICE_PATH; + BbsDevicePathNode.Header.SubType = BBS_BBS_DP; + SetDevicePathNodeLength (&BbsDevicePathNode.Header, sizeof (BBS_BBS_DEVICE_PATH)); + BbsDevicePathNode.DeviceType = DeviceType; + BbsDevicePathNode.StatusFlag = 0; + BbsDevicePathNode.String[0] = 0; + + DevicePath = EfiAppendDevicePathNode ( + EndDevicePath, + (EFI_DEVICE_PATH_PROTOCOL *) &BbsDevicePathNode + ); + if (NULL == DevicePath) { + return NULL; + } + + return DevicePath; +} + +EFI_STATUS +AsfDoLegacyBoot ( + IN BDS_COMMON_OPTION *Option + ) +/*++ + +Routine Description: + + Boot the legacy system with the boot option + +Arguments: + + Option - The legacy boot option which have BBS device path + +Returns: + + EFI_UNSUPPORTED - There is no legacybios protocol, do not support + legacy boot. + + EFI_STATUS - Return the status of LegacyBios->LegacyBoot (). + +--*/ +{ + EFI_STATUS Status; + EFI_LEGACY_BIOS_PROTOCOL *LegacyBios; + + Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, &LegacyBios); + if (EFI_ERROR (Status)) { + // + // If no LegacyBios protocol we do not support legacy boot + // + return EFI_UNSUPPORTED; + } + // + // Write boot to OS performance data to a file + // + WRITE_BOOT_TO_OS_PERFORMANCE_DATA; + + DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Legacy Boot: %S\n", Option->Description)); + return LegacyBios->LegacyBoot ( + LegacyBios, + (BBS_BBS_DEVICE_PATH *) Option->DevicePath, + Option->LoadOptionsSize, + Option->LoadOptions + ); +} + +BOOLEAN CompareDP( + EFI_DEVICE_PATH_PROTOCOL *dp1, + EFI_DEVICE_PATH_PROTOCOL *dp2 + ) +{ + UINTN s1,s2; + BOOLEAN st = FALSE; + + s1 = EfiDevicePathSize(dp1); + + s2 = EfiDevicePathSize(dp2); + + if (s1 == s2) { + if (EfiCompareMem(dp1, dp2, s1) == 0) + st = TRUE; + } + + return st; +} + + +UINT16 GetBootCurrent( + IN EFI_DEVICE_PATH_PROTOCOL *DevicePath +) +{ + UINT16 *BootOrder; + EFI_LOAD_OPTION *BootOption; + UINTN BootOrderSize; //size of BootOrder Variable + UINTN BootOptionSize; + CHAR16 BootVarName[9]; + UINTN i; + EFI_STATUS Status; + BOOLEAN st; + UINT16 BootCurrent; + EFI_DEVICE_PATH_PROTOCOL *Dp; + + BootOrder = NULL; + BootOption = NULL; + BootCurrent = 0; + BootOrderSize = 0; + + Status = gRT->GetVariable( + L"BootOrder", + &gEfiGlobalVariableGuid, + NULL, + &BootOrderSize, + NULL + ); + + if (Status == EFI_BUFFER_TOO_SMALL) { + BootOrder = EfiLibAllocateZeroPool(BootOrderSize); + if (BootOrder != NULL){ + Status = gRT->GetVariable( + L"BootOrder", + &gEfiGlobalVariableGuid, + NULL, + &BootOrderSize, + BootOrder + ); + if (!EFI_ERROR(Status)) { + for (i=0; i<BootOrderSize/sizeof(UINT16); i++){ + SPrint(BootVarName, sizeof(BootVarName), L"Boot%04x", BootOrder[i] ); + BootOptionSize = 0; + Status = gRT->GetVariable( + BootVarName, + &gEfiGlobalVariableGuid, + NULL, + &BootOptionSize, + NULL + ); + if (Status == EFI_BUFFER_TOO_SMALL) { + BootOption = EfiLibAllocateZeroPool(BootOptionSize); + if (BootOption != NULL){ + Status = gRT->GetVariable( + BootVarName, + &gEfiGlobalVariableGuid, + NULL, + &BootOptionSize, + BootOption + ); + if (!EFI_ERROR(Status)) { + Dp = (EFI_DEVICE_PATH_PROTOCOL*) + ( //skip the header + (UINT8*)(BootOption+1) + //skip the string + +(EfiStrLen((CHAR16*)(BootOption+1))+1)*sizeof(CHAR16) + ); + st = CompareDP(Dp, DevicePath); + if (st == TRUE) { + BootCurrent = BootOrder[i]; + } + } + gBS->FreePool(BootOption); + } + } + } + } + gBS->FreePool(BootOrder); + } + } + return BootCurrent; +} + +EFI_STATUS +AsfBootViaBootOption ( + IN BDS_COMMON_OPTION * Option, + IN EFI_DEVICE_PATH_PROTOCOL * DevicePath, + OUT UINTN *ExitDataSize, + OUT CHAR16 **ExitData OPTIONAL + ) +/*++ + +Routine Description: + + Process the boot option follow the EFI 1.1 specification and + special treat the legacy boot option with BBS_DEVICE_PATH. + +Arguments: + + Option - The boot option need to be processed + DevicePath - The device path which describe where to load + the boot image or the legcy BBS device path + to boot the legacy OS + ExitDataSize - Returned directly from gBS->StartImage () + ExitData - Returned directly from gBS->StartImage () + +Returns: + + EFI_SUCCESS - Status from gBS->StartImage (), + or BdsBootByDiskSignatureAndPartition () + EFI_NOT_FOUND - If the Device Path is not found in the system + +--*/ +{ + EFI_STATUS Status; + EFI_HANDLE Handle; + EFI_HANDLE ImageHandle; + EFI_DEVICE_PATH_PROTOCOL *TempDevicePath; + EFI_DEVICE_PATH_PROTOCOL *FilePath; + EFI_LOADED_IMAGE_PROTOCOL *ImageInfo; + EFI_EVENT ReadyToBootEvent; + EFI_ACPI_S3_SAVE_PROTOCOL *AcpiS3Save; + UINT32 VarAttr; + UINTN VarSize; + + *ExitDataSize = 0; + *ExitData = NULL; + + // + // Notes: put EFI64 ROM Shadow Solution + // + EFI64_SHADOW_ALL_LEGACY_ROM (); + + // + // Notes: this code can be remove after the s3 script table + // hook on the event EFI_EVENT_SIGNAL_READY_TO_BOOT or + // EFI_EVENT_SIGNAL_LEGACY_BOOT + // + Status = gBS->LocateProtocol (&gEfiAcpiS3SaveGuid, NULL, &AcpiS3Save); + if (!EFI_ERROR (Status)) { + AcpiS3Save->S3Save (AcpiS3Save, NULL); + } + // + // If it's Device Path that starts with a hard drive path, + // this routine will do the booting. + // + Status = BdsBootByDiskSignatureAndPartition ( + Option, + (HARDDRIVE_DEVICE_PATH *) DevicePath, + Option->LoadOptionsSize, + Option->LoadOptions, + ExitDataSize, + ExitData + ); + if (!EFI_ERROR (Status)) { + // + // If we found a disk signature and partition device path return success + // + return EFI_SUCCESS; + } + // + // Signal the EFI_EVENT_SIGNAL_READY_TO_BOOT event + // + + + Option->BootCurrent = GetBootCurrent(DevicePath); + + // + // Get Variable Attribute + // + VarAttr = 0; + VarSize = 0; + Status = gRT->GetVariable( + L"BootCurrent", + &gEfiGlobalVariableGuid, + &VarAttr, + &VarSize, + NULL ); + if( Status != EFI_BUFFER_TOO_SMALL ) + { + VarAttr = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS; + VarSize = sizeof(UINT16); + } + + // + // Set Boot Current + // + gRT->SetVariable( + L"BootCurrent", + &gEfiGlobalVariableGuid, + VarAttr, + VarSize, + &Option->BootCurrent ); + + // + // Abstract: Modified for EFI 2.0 required + // +#if defined(EFI_EVENT_SIGNAL_READY_TO_BOOT) && EFI_SPECIFICATION_VERSION < 0x20000 + Status = gBS->CreateEvent ( + EFI_EVENT_SIGNAL_READY_TO_BOOT | EFI_EVENT_NOTIFY_SIGNAL_ALL, + EFI_TPL_CALLBACK, + NULL, + NULL, + &ReadyToBootEvent + ); +#else + Status = EfiCreateEventReadyToBoot ( + EFI_TPL_CALLBACK, + NULL, + NULL, + &ReadyToBootEvent + ); +#endif + if (!EFI_ERROR (Status)) { + gBS->SignalEvent (ReadyToBootEvent); + gBS->CloseEvent (ReadyToBootEvent); + } + + if ((DevicePathType (Option->DevicePath) == BBS_DEVICE_PATH) && + (DevicePathSubType (Option->DevicePath) == BBS_BBS_DP) + ) { + // + // Check to see if we should legacy BOOT. If yes then do the legacy boot + // + return AsfDoLegacyBoot (Option); + } + + DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Booting EFI 1.1 way %S\n", Option->Description)); + + Status = gBS->LoadImage ( + TRUE, + mBdsImageHandle, + DevicePath, + NULL, + 0, + &ImageHandle + ); + + // + // If we didn't find an image, we may need to load the default + // boot behavior for the device. + // + if (EFI_ERROR (Status)) { + // + // Find a Simple File System protocol on the device path. If the remaining + // device path is set to end then no Files are being specified, so try + // the removable media file name. + // + TempDevicePath = DevicePath; + Status = gBS->LocateDevicePath ( + &gEfiSimpleFileSystemProtocolGuid, + &TempDevicePath, + &Handle + ); + if (!EFI_ERROR (Status) && IsDevicePathEnd (TempDevicePath)) { + FilePath = EfiFileDevicePath (Handle, DEFAULT_REMOVABLE_FILE_NAME); + if (FilePath) { + Status = gBS->LoadImage ( + TRUE, + mBdsImageHandle, + FilePath, + NULL, + 0, + &ImageHandle + ); + if (EFI_ERROR (Status)) { + // System Halt when IDER boot fail !! + if(ActiveManagementEnableIdeR () && ((Status == EFI_SECURITY_VIOLATION) || (Status == EFI_ACCESS_DENIED))) + { + gST->ConOut->OutputString ( + gST->ConOut, + L"IDER Boot Fail, system halt !! \r\n"); + + while(1); + } + // + // The DevicePath failed, and it's not a valid + // removable media device. + // + goto Done; + } + } + } else { + Status = EFI_NOT_FOUND; + } + } + + if (EFI_ERROR (Status)) { + // + // It there is any error from the Boot attempt exit now. + // + goto Done; + } + // + // Provide the image with it's load options + // + Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, &ImageInfo); + ASSERT_EFI_ERROR (Status); + + if (Option->LoadOptionsSize != 0) { + ImageInfo->LoadOptionsSize = Option->LoadOptionsSize; + ImageInfo->LoadOptions = Option->LoadOptions; + } + // + // Before calling the image, enable the Watchdog Timer for + // the 5 Minute period + // + gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL); + + Status = gBS->StartImage (ImageHandle, ExitDataSize, ExitData); + DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Image Return Status = %r\n", Status)); + // System Halt when IDER boot fail !! + if(ActiveManagementEnableIdeR ()) + { + gST->ConOut->OutputString ( + gST->ConOut, + L"IDER Boot Fail, system halt !! \r\n"); + + while(1); + } + + // + // Clear the Watchdog Timer after the image returns + // + gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL); + +Done: + // + // Clear Boot Current + // + gRT->SetVariable( + L"BootCurrent", + &gEfiGlobalVariableGuid, + VarAttr, + 0, + &Option->BootCurrent ); + + return Status; +} + +EFI_STATUS +BdsAsfBoot ( + OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath + ) +/*++ + +Routine Description: + + Found out ASF boot options. + +Arguments: + + DevicePath - The device path which describe where to load + the boot image or the legcy BBS device path + to boot the legacy OS + +Returns: + + EFI_STATUS + +--*/ +{ + BOOLEAN EfiBoot; + + EfiBoot = FALSE; + + // + // First we check ASF boot options Special Command + // + switch (mAsfBootOptions->SpecialCommand) { + // + // No additional special command is included; the Special Command Parameter has no + // meaning. + // + case NOP: + break; + + // + // The Special Command Parameter can be used to specify a PXE + // parameter. When the parameter value is 0, the system default PXE device is booted. All + // other values for the PXE parameter are reserved for future definition by this specification. + // + case FORCE_PXE: + if (mAsfBootOptions->SpecialCommandParam != 0) { + // + // ASF spec says 0 currently only option + // + return EFI_UNSUPPORTED; + } + + if (EfiBoot == TRUE) { + *DevicePath = BdsCreatePxeDevicePath (mAsfBootOptions->SpecialCommandParam); + } else { + *DevicePath = BdsCreateLegacyBootDevicePath (BBS_EMBED_NETWORK, mAsfBootOptions->SpecialCommandParam, FALSE); + } + break; + + // + // The Special Command Parameter identifies the boot-media index for + // the managed client. When the parameter value is 0, the default hard-drive is booted, when the + // parameter value is 1, the primary hard-drive is booted; when the value is 2, the secondary + // hard-drive is booted ¡V and so on. + // + case FORCE_HARDDRIVE: + // + // The Special Command Parameter identifies the boot-media + // index for the managed client. When the parameter value is 0, the default hard-drive is + // booted, when the parameter value is 1, the primary hard-drive is booted; when the value is 2, + // the secondary hard-drive is booted ¡V and so on. + // + case FORCE_SAFEMODE: + *DevicePath = BdsCreateLegacyBootDevicePath (BBS_TYPE_HARDDRIVE, mAsfBootOptions->SpecialCommandParam, FALSE); + break; + + // + // The Special Command Parameter can be used to specify a + // diagnostic parameter. When the parameter value is 0, the default diagnostic media is booted. + // All other values for the diagnostic parameter are reserved for future definition by this + // specification. + // + case FORCE_DIAGNOSTICS: + if (mAsfBootOptions->SpecialCommandParam != 0) { + // + // ASF spec says 0 currently only option + // + return EFI_UNSUPPORTED; + } + + *DevicePath = BdsCreateShellDevicePath (); + + // + // We want everything connected up for shell + // + BdsLibConnectAllDriversToAllControllers (); + break; + + // + // The Special Command Parameter identifies the boot-media index for + // the managed client. When the parameter value is 0, the default CD/DVD is booted, when the + // parameter value is 1, the primary CD/DVD is booted; when the value is 2, the secondary + // CD/DVD is booted ¡V and so on. + // + case FORCE_CDDVD: + *DevicePath = BdsCreateLegacyBootDevicePath (BBS_TYPE_CDROM, mAsfBootOptions->SpecialCommandParam, FALSE); + break; + + default: + return EFI_UNSUPPORTED; + break; + } + + return EFI_SUCCESS; +} + +EFI_STATUS +BdsAmtBoot ( + OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath + ) +/*++ + +Routine Description: + + Check IdeR boot device and Asf boot device + +Arguments: + + DevicePath - The device path which describe where to load + the boot image or the legcy BBS device path + to boot the legacy OS + +Returns: + + EFI_STATUS + +--*/ +{ + EFI_STATUS Status; + + // + // OEM command values; the interpretation of the Special Command and associated Special + // Command Parameters is defined by the entity associated with the Enterprise ID. + // + if (ActiveManagementEnableIdeR ()) { + // + // Check if any media exist in Ider device + // + if (BdsCheckIderMedia ()) { + *DevicePath = BdsCreateLegacyBootDevicePath ( + BBS_TYPE_CDROM, + (mAsfBootOptions->SpecialCommandParam & IDER_BOOT_DEVICE_MASK) >> IDER_BOOT_DEVICE_SHIFT, + TRUE + ); + } + + Status = EFI_SUCCESS; + } else { + Status = BdsAsfBoot (DevicePath); + } + + return Status; +} + +EFI_STATUS +BdsBootViaAsf ( + IN VOID + ) +/*++ + +Routine Description: + + Process ASF boot options and if available, attempt the boot + +Arguments: + + None. + +Returns: + + EFI_SUCCESS - The command completed successfully + Other - Error!! + +--*/ +{ + EFI_STATUS Status; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + BDS_COMMON_OPTION *BootOption; + UINTN ExitDataSize; + CHAR16 *ExitData; + + Status = EFI_SUCCESS; + DevicePath = NULL; + + // + // Check if ASF Boot Options is present. + // + if (mAsfBootOptions->SubCommand != ASF_BOOT_OPTIONS_PRESENT) { + return EFI_NOT_FOUND; + } + + DevicePath = BuildDevicePathFromBootOrder(); + + if(DevicePath != NULL) + { + + BootOption = BdsCreateBootOption (DevicePath, L"ASF Boot"); + if (BootOption != NULL) { + Status = AsfBootViaBootOption (BootOption, BootOption->DevicePath, &ExitDataSize, &ExitData); + if (EFI_ERROR (Status)) { + gBS->FreePool (BootOption); + } + + gBS->FreePool (DevicePath); + } + } + // UEFI BOOT fail, try Legacy Boot + switch (mAsfBootOptions->IanaId) + { + case ASF_INTEL_CONVERTED_IANA: + Status = BdsAmtBoot (&DevicePath); + break; + + case ASF_INDUSTRY_CONVERTED_IANA: + Status = BdsAsfBoot (&DevicePath); + break; + } + // + // If device path was set, the we have a boot option to use + // + if (DevicePath == NULL) { + return EFI_UNSUPPORTED; + } + + BootOption = BdsCreateBootOption (DevicePath, L"ASF Boot"); + if (BootOption == NULL) { + return EFI_OUT_OF_RESOURCES; + } + + Status = AsfBootViaBootOption (BootOption, BootOption->DevicePath, &ExitDataSize, &ExitData); + if (EFI_ERROR (Status)) { + gBS->FreePool (BootOption); + } + + gBS->FreePool (DevicePath); + + return Status; +} + +BOOLEAN +BdsCheckIderMedia ( + IN VOID + ) +/*++ + +Routine Description: + This will return if Media in IDE-R is present. + +Arguments: + None. + +Returns: + True Media is present. + False Media is not present. + +--*/ +{ + UINTN HandleNum; + EFI_HANDLE *HandleBuf; + EFI_HANDLE Handle; + EFI_STATUS Status; + EFI_DEVICE_PATH_PROTOCOL *DPath; + UINTN Index; + UINTN EventIndex; + EFI_INPUT_KEY Key; + EFI_BLOCK_IO_PROTOCOL *BlkIo; + EFI_DISK_INFO_PROTOCOL *DiskInfo; + EFI_BLOCK_IO_MEDIA *BlkMedia; + VOID *Buffer; + UINT8 IdeBootDevice; + UINT32 IdeChannel; + UINT32 IdeDevice; + + IdeBootDevice = ActiveManagementIderBootDeviceGet (); + + DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Ide Channel Device Index = %d\n", IdeBootDevice)); + + // + // Make sure the Legacy Boot Protocol is available + // + Status = gBS->LocateHandleBuffer ( + ByProtocol, + &gEfiBlockIoProtocolGuid, + NULL, + &HandleNum, + &HandleBuf + ); + if (EFI_ERROR (Status)) { + return FALSE; + } + + for (Index = 0; Index < HandleNum; Index++) { + Status = gBS->HandleProtocol ( + HandleBuf[Index], + &gEfiDevicePathProtocolGuid, + &DPath + ); + if (!EFI_ERROR (Status)) { + Status = gBS->LocateDevicePath ( + &gEfiIderControllerDriverProtocolGuid, + &DPath, + &Handle + ); + if (!EFI_ERROR (Status)) { + Status = gBS->HandleProtocol ( + HandleBuf[Index], + &gEfiBlockIoProtocolGuid, + &BlkIo + ); + + Status = gBS->HandleProtocol ( + HandleBuf[Index], + &gEfiDiskInfoProtocolGuid, + &DiskInfo + ); + + DiskInfo->WhichIde (DiskInfo, &IdeChannel, &IdeDevice); + + if (IdeBootDevice != (UINT8) (IdeChannel * 2 + IdeDevice)) { + continue; + } + + if (BlkIo->Media->MediaPresent) { + if (HandleBuf != NULL) { + gBS->FreePool (HandleBuf); + } + return TRUE; + } else { + while (TRUE) { + BlkMedia = BlkIo->Media; + Buffer = EfiLibAllocatePool (BlkMedia->BlockSize); + if (Buffer) { + BlkIo->ReadBlocks ( + BlkIo, + BlkMedia->MediaId, + 0, + BlkMedia->BlockSize, + Buffer + ); + gBS->FreePool (Buffer); + } + + if (BlkMedia->MediaPresent) { + if (HandleBuf != NULL) { + gBS->FreePool (HandleBuf); + } + return TRUE; + } + + gST->ConOut->OutputString ( + gST->ConOut, + L"Boot disk missing, please insert boot disk and press ENTER\r\n" + ); + Key.ScanCode = 0; + Key.UnicodeChar = 0; + gBS->RestoreTPL (EFI_TPL_APPLICATION); + while (!(Key.ScanCode == 0 && Key.UnicodeChar == L'\r')) { + Status = gBS->WaitForEvent (1, &(gST->ConIn->WaitForKey), &EventIndex); + gST->ConIn->ReadKeyStroke (gST->ConIn, &Key); + } + + gBS->RaiseTPL (EFI_TPL_DRIVER); + } + + if (HandleBuf != NULL) { + gBS->FreePool (HandleBuf); + } + return FALSE; + } + } + } + } + + if (HandleBuf != NULL) { + gBS->FreePool (HandleBuf); + } + return FALSE; +} +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2010, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* |