1 files changed, 31 insertions, 9 deletions
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
index a668abb82b..033c0625af 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
@@ -446,10 +446,19 @@ GetFvbInfoByAddress (
   @param Data                       The buffer to return the contents of the variable. May be NULL
                                     with a zero DataSize in order to determine the size buffer needed.
 
-  @return EFI_INVALID_PARAMETER     Invalid parameter.
-  @return EFI_SUCCESS               Find the specified variable.
-  @return EFI_NOT_FOUND             Not found.
-  @return EFI_BUFFER_TO_SMALL       DataSize is too small for the result.
+  @retval EFI_SUCCESS            The function completed successfully.
+  @retval EFI_NOT_FOUND          The variable was not found.
+  @retval EFI_BUFFER_TOO_SMALL   The DataSize is too small for the result.
+  @retval EFI_INVALID_PARAMETER  VariableName is NULL.
+  @retval EFI_INVALID_PARAMETER  VendorGuid is NULL.
+  @retval EFI_INVALID_PARAMETER  DataSize is NULL.
+  @retval EFI_INVALID_PARAMETER  The DataSize is not too small and Data is NULL.
+  @retval EFI_DEVICE_ERROR       The variable could not be retrieved due to a hardware error.
+  @retval EFI_SECURITY_VIOLATION The variable could not be retrieved due to an authentication failure.
+  @retval EFI_UNSUPPORTED        After ExitBootServices() has been called, this return code may be returned
+                                 if no variable storage is supported. The platform should describe this
+                                 runtime service as unsupported at runtime via an EFI_RT_PROPERTIES_TABLE
+                                 configuration table.
 
 **/
 EFI_STATUS
@@ -485,6 +494,11 @@ VariableServiceGetVariable (
                                     GUID of an existing variable.
   @retval EFI_INVALID_PARAMETER     Null-terminator is not found in the first VariableNameSize bytes of
                                     the input VariableName buffer.
+  @retval EFI_DEVICE_ERROR          The variable could not be retrieved due to a hardware error.
+  @retval EFI_UNSUPPORTED           After ExitBootServices() has been called, this return code may be returned
+                                    if no variable storage is supported. The platform should describe this
+                                    runtime service as unsupported at runtime via an EFI_RT_PROPERTIES_TABLE
+                                    configuration table.
 
 **/
 EFI_STATUS
@@ -513,11 +527,19 @@ VariableServiceGetNextVariableName (
                                           data, this value contains the required size.
   @param Data                             Data pointer.
 
-  @return EFI_INVALID_PARAMETER           Invalid parameter.
-  @return EFI_SUCCESS                     Set successfully.
-  @return EFI_OUT_OF_RESOURCES            Resource not enough to set variable.
-  @return EFI_NOT_FOUND                   Not found.
-  @return EFI_WRITE_PROTECTED             Variable is read-only.
+  @retval EFI_SUCCESS                     The function completed successfully.
+  @retval EFI_NOT_FOUND                   The variable was not found.
+  @retval EFI_BUFFER_TOO_SMALL            The DataSize is too small for the result.
+  @retval EFI_INVALID_PARAMETER           VariableName is NULL.
+  @retval EFI_INVALID_PARAMETER           VendorGuid is NULL.
+  @retval EFI_INVALID_PARAMETER           DataSize is NULL.
+  @retval EFI_INVALID_PARAMETER           The DataSize is not too small and Data is NULL.
+  @retval EFI_DEVICE_ERROR                The variable could not be retrieved due to a hardware error.
+  @retval EFI_SECURITY_VIOLATION          The variable could not be retrieved due to an authentication failure.
+  @retval EFI_UNSUPPORTED                 After ExitBootServices() has been called, this return code may be returned
+                                          if no variable storage is supported. The platform should describe this
+                                          runtime service as unsupported at runtime via an EFI_RT_PROPERTIES_TABLE
+                                          configuration table.
 
 **/
 EFI_STATUS