PI Enabling: the address of PeiServices Pointer should be

[mirror_edk2.git] / MdePkg / Library / PeiServicesTablePointerLib / PeiServicesTablePointer.c

diff --git a/MdePkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c b/MdePkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c
index 54a500a7326b1ff3aa25126ab6579b6185721c4d..871e52a25ac836b3c05b4c9bc534d86c50022d01 100644 (file)
--- a/MdePkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c
+++ b/MdePkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c
@@ -20,6 +20,12 @@
 \r
 static EFI_PEI_SERVICES  **gPeiServices;\r
 \r
+/**\r
+  The function set the pointer of PEI services immediately preceding the IDT table\r
+  according to PI specification.\r
+  \r
+  @param    PeiServices   The address of PeiServices pointer.\r
+**/\r
 VOID\r
 EFIAPI\r
 SetPeiServicesTablePointer (\r
@@ -70,3 +76,18 @@ PeiServicesTablePointerLibConstructor (
   gPeiServices = PeiServices;\r
   return EFI_SUCCESS;\r
 }\r
+\r
+/**\r
+  After memory initialization in PEI phase, the IDT table in temporary memory should \r
+  be migrated to memory, and the address of PeiServicesPointer also need to be updated  \r
+  immediately preceding the new IDT table.\r
+  \r
+  @param    PeiServices   The address of PeiServices pointer.\r
+**/\r
+VOID\r
+MigrateIdtTable (\r
+  IN EFI_PEI_SERVICES  **PeiServices\r
+  )\r
+{\r
+}\r
+\r