mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-27 16:58:09 +01:00
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/** @file
|
|
NULL Library class that reads Debug Mask variable and if it exists makes a
|
|
HOB that contains the debug mask.
|
|
|
|
Copyright (c) 2011, Apple, Inc. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#include <PiPei.h>
|
|
|
|
#include <Library/HobLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/PeiServicesLib.h>
|
|
|
|
#include <Ppi/ReadOnlyVariable2.h>
|
|
#include <Guid/DebugMask.h>
|
|
|
|
|
|
/**
|
|
The constructor reads variable and sets HOB
|
|
|
|
@param FileHandle The handle of FFS header the loaded driver.
|
|
@param PeiServices The pointer to the PEI services.
|
|
|
|
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiDebugPrintHobLibConstructor (
|
|
IN EFI_PEI_FILE_HANDLE FileHandle,
|
|
IN CONST EFI_PEI_SERVICES **PeiServices
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_PEI_READ_ONLY_VARIABLE2_PPI *Variable;
|
|
UINTN Size;
|
|
UINT64 GlobalErrorLevel;
|
|
UINT32 HobErrorLevel;
|
|
|
|
Status = PeiServicesLocatePpi (
|
|
&gEfiPeiReadOnlyVariable2PpiGuid,
|
|
0,
|
|
NULL,
|
|
(VOID **)&Variable
|
|
);
|
|
if (!EFI_ERROR (Status)) {
|
|
Size = sizeof (GlobalErrorLevel);
|
|
Status = Variable->GetVariable (
|
|
Variable,
|
|
DEBUG_MASK_VARIABLE_NAME,
|
|
&gEfiGenericVariableGuid,
|
|
NULL,
|
|
&Size,
|
|
&GlobalErrorLevel
|
|
);
|
|
if (!EFI_ERROR (Status)) {
|
|
//
|
|
// Build the GUID'ed HOB for DXE
|
|
//
|
|
HobErrorLevel = (UINT32)GlobalErrorLevel;
|
|
BuildGuidDataHob (
|
|
&gEfiGenericVariableGuid,
|
|
&HobErrorLevel,
|
|
sizeof (HobErrorLevel)
|
|
);
|
|
}
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|