MdeModulePkg DxeIpl: Move ClearFirst4KPage/IsNullDetectionEnabled definition

[mirror_edk2.git] / MdeModulePkg / Core / DxeIplPeim / X64 / VirtualMemory.h

diff --git a/MdeModulePkg/Core/DxeIplPeim/X64/VirtualMemory.h b/MdeModulePkg/Core/DxeIplPeim/X64/VirtualMemory.h
index 7c9bb49e3e2cffe60797403bb0bdc6131c7074a1..26a2100f0b804c619835c1d9f0422b15a6c01822 100644 (file)
--- a/MdeModulePkg/Core/DxeIplPeim/X64/VirtualMemory.h
+++ b/MdeModulePkg/Core/DxeIplPeim/X64/VirtualMemory.h
@@ -7,7 +7,7 @@
     3) IA-32 Intel(R) Architecture Software Developer's Manual Volume 3:System Programmer's Guide, Intel\r
     4) AMD64 Architecture Programmer's Manual Volume 2: System Programming\r
 \r
-Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r
 Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>\r
 \r
 This program and the accompanying materials\r
@@ -227,5 +227,29 @@ AsmGetVectorTemplatInfo (
   OUT   VOID  **TemplateBase\r
   );\r
 \r
+/**\r
+  Clear legacy memory located at the first 4K-page.\r
+\r
+  This function traverses the whole HOB list to check if memory from 0 to 4095\r
+  exists and has not been allocated, and then clear it if so.\r
+\r
+  @param HobStart         The start of HobList passed to DxeCore.\r
+\r
+**/\r
+VOID\r
+ClearFirst4KPage (\r
+  IN  VOID *HobStart\r
+  );\r
+\r
+/**\r
+  Return configure status of NULL pointer detection feature.\r
+\r
+  @return TRUE   NULL pointer detection feature is enabled\r
+  @return FALSE  NULL pointer detection feature is disabled\r
+**/\r
+BOOLEAN\r
+IsNullDetectionEnabled (\r
+  VOID\r
+  );\r
 \r
 #endif \r