diff options
| -rw-r--r-- | MdeModulePkg/Core/DxeIplPeim/DxeLoad.c | 55 |
1 files changed, 30 insertions, 25 deletions
diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c b/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c index aa0507686b..d7d693fdeb 100644 --- a/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c +++ b/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c @@ -273,31 +273,36 @@ DxeLoadCore ( //
}
- Status = PeiServicesLocatePpi (
- &gEfiPeiReadOnlyVariable2PpiGuid,
- 0,
- NULL,
- (VOID **)&Variable
- );
- if (!EFI_ERROR (Status)) {
- DataSize = sizeof (MemoryData);
- Status = Variable->GetVariable (
- Variable,
- EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,
- &gEfiMemoryTypeInformationGuid,
- NULL,
- &DataSize,
- &MemoryData
- );
- if (!EFI_ERROR (Status) && ValidateMemoryTypeInfoVariable(MemoryData, DataSize)) {
- //
- // Build the GUID'd HOB for DXE
- //
- BuildGuidDataHob (
- &gEfiMemoryTypeInformationGuid,
- MemoryData,
- DataSize
- );
+ if (GetFirstGuidHob ((CONST EFI_GUID *)&gEfiMemoryTypeInformationGuid) == NULL) {
+ //
+ // Don't build GuidHob if GuidHob has been installed.
+ //
+ Status = PeiServicesLocatePpi (
+ &gEfiPeiReadOnlyVariable2PpiGuid,
+ 0,
+ NULL,
+ (VOID **)&Variable
+ );
+ if (!EFI_ERROR (Status)) {
+ DataSize = sizeof (MemoryData);
+ Status = Variable->GetVariable (
+ Variable,
+ EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,
+ &gEfiMemoryTypeInformationGuid,
+ NULL,
+ &DataSize,
+ &MemoryData
+ );
+ if (!EFI_ERROR (Status) && ValidateMemoryTypeInfoVariable(MemoryData, DataSize)) {
+ //
+ // Build the GUID'd HOB for DXE
+ //
+ BuildGuidDataHob (
+ &gEfiMemoryTypeInformationGuid,
+ MemoryData,
+ DataSize
+ );
+ }
}
}
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