diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/MdeModulePkg/Library/PeiDebugPrintHobLib/PeiDebugPrintHobLib.c | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdeModulePkg/Library/PeiDebugPrintHobLib/PeiDebugPrintHobLib.c')
| -rw-r--r-- | roms/edk2/MdeModulePkg/Library/PeiDebugPrintHobLib/PeiDebugPrintHobLib.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/roms/edk2/MdeModulePkg/Library/PeiDebugPrintHobLib/PeiDebugPrintHobLib.c b/roms/edk2/MdeModulePkg/Library/PeiDebugPrintHobLib/PeiDebugPrintHobLib.c new file mode 100644 index 000000000..e545be206 --- /dev/null +++ b/roms/edk2/MdeModulePkg/Library/PeiDebugPrintHobLib/PeiDebugPrintHobLib.c @@ -0,0 +1,72 @@ +/** @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;
+}
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