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Diffstat (limited to 'Core/EM/TseDefaultBootOrder/TseDefaultBootOrder.c')
| -rw-r--r-- | Core/EM/TseDefaultBootOrder/TseDefaultBootOrder.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/Core/EM/TseDefaultBootOrder/TseDefaultBootOrder.c b/Core/EM/TseDefaultBootOrder/TseDefaultBootOrder.c new file mode 100644 index 0000000..6938502 --- /dev/null +++ b/Core/EM/TseDefaultBootOrder/TseDefaultBootOrder.c @@ -0,0 +1,208 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (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/Modules/BootOptionPolicies/TseDefaultBootOrder/TseDefaultBootOrder.c 6 1/03/13 10:51a Vyacheslava $ +// +// $Revision: 6 $ +// +// $Date: 1/03/13 10:51a $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/BIN/Modules/BootOptionPolicies/TseDefaultBootOrder/TseDefaultBootOrder.c $ +// +// 6 1/03/13 10:51a Vyacheslava +// Added modification to check for LOAD_OPTION_HIDDEN and ignore hidden +// boot options in creating "DefaultBootOrder" variable. +// +// 5 10/15/12 10:31a Vyacheslava +// [TAG] EIP103603 +// [Category] Bug Fix +// [Severity] Critical +// [Symptom] DefaultLegacyDevOrder is corrupted +// [RootCause] SetDefaultTseBootOrder () corrupts the data which is not +// the Boot Order. +// [Solution] for( i = 0; i < (Order->Length / (sizeof (UINT16)) - 1); +// i++ ) +// [Files] TseDefaultBootOrder.c +// +// 4 9/13/11 9:09a Vyacheslava +// +// 3 4/27/11 11:26a Vyacheslava +// [TAG] EIP58592 +// [Category] Bug Fix +// [Severity] Minor +// [Symptom] Restore Defaults in the Setup will work incorrect after +// second HDD has been disabled. +// +// 2 2/02/11 2:00p Vyacheslava +// [TAG] EIP52313 +// [Category] New Feature +// +// 1 1/20/11 10:52a Felixp +// +// 6 1/13/10 2:13p Felixp +// +//********************************************************************** +//<AMI_FHDR_START> +// +// Name: TseDefaultBootOrder.c +// +// Description: This is main file of the TseDefaultBootOrder eModule. +// +//<AMI_FHDR_END> +//********************************************************************** + +#include <BootOptions.h> +#include "TseDefaultBootOrder.h" + +//---------------------------------------------------------------------------- + + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: CompareTagThenBbsIndex +// +// Description: This function returns result of compairing two DLINK tags. +// +// Input: +// Link1 - pointer to the first tag for compare +// Link1 - pointer to the second tag for compare +// +// Output: INT32 - result of comparing. +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> + +INT32 CompareTagThenBbsIndex( IN DLINK *Link1, IN DLINK *Link2 ) +{ + BOOT_OPTION *Option1 = (BOOT_OPTION*)Link1; + BOOT_OPTION *Option2 = (BOOT_OPTION*)Link2; + + // Compare Tags first + if (Option1->Tag < Option2->Tag) + return -1; + else if (Option1->Tag > Option2->Tag) + return 1; + + // Compare by BBS index + if (Option1->BbsIndex < Option2->BbsIndex) + return -1; + else if (Option1->BbsIndex > Option2->BbsIndex) + return 1; + + return 0; +} + + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: SetDefaultTseBootOrder +// +// Description: +// This function sets variables: DefaultLegacyDevOrder and DefaultBootOrder. +// +// Input: VOID +// +// Output: VOID +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> + +VOID SetDefaultTseBootOrder(VOID) +{ + UINTN DevOrderSize; + LEGACY_DEVICE_ORDER *DevOrder; + UINTN BootOrderSize; + UINT16 *BootOrder; + UINT16 PreviousBootOptionNumber; + DLINK *Link; + UINTN BootOrderIndex; + BOOT_OPTION *Option; + EFI_GUID DefaultLegacyDevOrderGuid = DEFAULT_LEGACY_DEV_ORDER_VARIABLE_GUID; + EFI_GUID DefaultBootOrderGuid = DEFAULT_BOOT_ORDER_VARIABLE_GUID; + LEGACY_DEVICE_ORDER *Order; + UINTN i; + + // PRECONDITION: All Boot Option Numbers are set + BootOrderSize = BootOptionList->Size * sizeof(UINT16); + if (BootOrderSize == 0) + return; + + // Build DefaultLegacyDevOrder variable + SortList(BootOptionList, CompareTagThenBbsIndex); + BuildLegacyDevOrderBuffer(&DevOrder, &DevOrderSize); + + // Remove disable mask from buffer DevOrder + for( Order = DevOrder; (UINT8*)Order < (UINT8*)DevOrder + DevOrderSize; + Order = (LEGACY_DEVICE_ORDER*)((UINT8*)Order + Order->Length + sizeof(Order->Type)) ) + { + // The order length includes their own length + for( i = 0; i < (Order->Length / sizeof(UINT16) - 1); i++ ) + Order->Device[i] &= 0x00FF; + } + + // Store "DefaultLegacyDevOrder" EFI variable + pRS->SetVariable( + L"DefaultLegacyDevOrder", + &DefaultLegacyDevOrderGuid, + BOOT_VARIABLE_ATTRIBUTES, + DevOrderSize, + DevOrder + ); + pBS->FreePool(DevOrder); + + // Build DefaultBootOrder variable + BootOrder = Malloc(BootOrderSize); + PreviousBootOptionNumber = INVALID_BOOT_OPTION_NUMBER; + BootOrderIndex = 0; + + // Set boot option number for each boot option + FOR_EACH_BOOT_OPTION(BootOptionList,Link,Option) + { + if ( (PreviousBootOptionNumber == Option->BootOptionNumber) || + (Option->Attributes & LOAD_OPTION_HIDDEN) ) + continue; + BootOrder[BootOrderIndex++] = Option->BootOptionNumber; + PreviousBootOptionNumber = Option->BootOptionNumber; + } + + // Store "DefaultBootOrder" EFI variable + pRS->SetVariable( + L"DefaultBootOrder", + &DefaultBootOrderGuid, + BOOT_VARIABLE_ATTRIBUTES, + BootOrderIndex * sizeof(UINT16), + BootOrder + ); + pBS->FreePool(BootOrder); +} + + +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2011, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//**********************************************************************
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