diff options
| -rw-r--r-- | ArmPkg/Include/Library/BdsLib.h | 34 | ||||
| -rw-r--r-- | ArmPkg/Library/BdsLib/BdsHelper.c | 4 |
2 files changed, 36 insertions, 2 deletions
diff --git a/ArmPkg/Include/Library/BdsLib.h b/ArmPkg/Include/Library/BdsLib.h index d16748da46..9fa6870418 100644 --- a/ArmPkg/Include/Library/BdsLib.h +++ b/ArmPkg/Include/Library/BdsLib.h @@ -66,6 +66,23 @@ BdsConnectAllDrivers ( VOID
);
+/**
+ Return the value of a global variable defined by its VariableName.
+ The variable must be defined with the VendorGuid gEfiGlobalVariableGuid.
+
+ @param VariableName A Null-terminated string that is the name of the vendor's
+ variable.
+ @param DefaultValue Value returned by the function if the variable does not exist
+ @param DataSize On input, the size in bytes of the return Data buffer.
+ On output the size of data returned in Data.
+ @param Value Value read from the UEFI Variable or copy of the default value
+ if the UEFI Variable does not exist
+
+ @retval EFI_SUCCESS All drivers have been connected
+ @retval EFI_NOT_FOUND No handles match the search.
+ @retval EFI_OUT_OF_RESOURCES There is not resource pool memory to store the matching results.
+
+**/
EFI_STATUS
GetGlobalEnvironmentVariable (
IN CONST CHAR16* VariableName,
@@ -74,6 +91,23 @@ GetGlobalEnvironmentVariable ( OUT VOID** Value
);
+/**
+ Return the value of the variable defined by its VariableName and VendorGuid
+
+ @param VariableName A Null-terminated string that is the name of the vendor's
+ variable.
+ @param VendorGuid A unique identifier for the vendor.
+ @param DefaultValue Value returned by the function if the variable does not exist
+ @param DataSize On input, the size in bytes of the return Data buffer.
+ On output the size of data returned in Data.
+ @param Value Value read from the UEFI Variable or copy of the default value
+ if the UEFI Variable does not exist
+
+ @retval EFI_SUCCESS All drivers have been connected
+ @retval EFI_NOT_FOUND No handles match the search.
+ @retval EFI_OUT_OF_RESOURCES There is not resource pool memory to store the matching results.
+
+**/
EFI_STATUS
GetEnvironmentVariable (
IN CONST CHAR16* VariableName,
diff --git a/ArmPkg/Library/BdsLib/BdsHelper.c b/ArmPkg/Library/BdsLib/BdsHelper.c index fb2ac9b806..1d4aa35728 100644 --- a/ArmPkg/Library/BdsLib/BdsHelper.c +++ b/ArmPkg/Library/BdsLib/BdsHelper.c @@ -331,7 +331,7 @@ GetEnvironmentVariable ( *Size,
DefaultValue
);
- *Value = DefaultValue;
+ *Value = AllocateCopyPool (*Size, DefaultValue);
} else {
return EFI_NOT_FOUND;
}
@@ -352,7 +352,7 @@ GetEnvironmentVariable ( *Size = VariableSize;
}
} else {
- *Value = DefaultValue;
+ *Value = AllocateCopyPool (*Size, DefaultValue);
return Status;
}
|