Enable the Load Module At fixed Address feature

[mirror_edk2.git] / MdeModulePkg / Core / Pei / PeiMain.h

diff --git a/MdeModulePkg/Core/Pei/PeiMain.h b/MdeModulePkg/Core/Pei/PeiMain.h
index aa23cc57edae9caf6096233f78cde112c7f4682f..268aedf454ac0ab7f1f1f688ea77bb86f6968f06 100644 (file)
--- a/MdeModulePkg/Core/Pei/PeiMain.h
+++ b/MdeModulePkg/Core/Pei/PeiMain.h
@@ -177,6 +177,18 @@ typedef struct{
   EFI_PHYSICAL_ADDRESS               FreePhysicalMemoryTop;\r
   VOID*                              ShadowedPeiCore;\r
   CACHE_SECTION_DATA                 CacheSection;\r
+  //\r
+  // For Loading modules at fixed address feature to cache the top address below which the \r
+  // Runtime code, boot time code and PEI memory will be placed. Please note that the offset between this field \r
+  // and  PS should not be changed since maybe user could get this top address by using the offet to PS. \r
+  //\r
+  EFI_PHYSICAL_ADDRESS               LoadModuleAtFixAddressTopAddress;\r
+  //\r
+  // The field is define for Loading modules at fixed address feature to tracker the PEI code\r
+  // memory range usage. It is a bit mapped array in which every bit indicates the correspoding memory page\r
+  // available or not. \r
+  //\r
+  UINT64                            *PeiCodeMemoryRangeUsageBitMap;\r
 } PEI_CORE_INSTANCE;\r
 \r
 ///\r