ArmPlatformPkg: Introduce ArmPlatformGlobalVariableLib

[mirror_edk2.git] / ArmPlatformPkg / PrePeiCore / PrePeiCore.c

diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCore.c b/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
index c557efebcea072e13e73df943b947f43c8c7c989..a61d0b88575da4a5579331b7a59f3af80dd43b64 100644 (file)
--- a/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
+++ b/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
@@ -13,24 +13,30 @@
 *\r
 **/\r
 \r
-#include <Library/IoLib.h>\r
 #include <Library/BaseLib.h>\r
-#include <Library/BaseMemoryLib.h>\r
 #include <Library/DebugAgentLib.h>\r
 #include <Library/PrintLib.h>\r
 #include <Library/ArmLib.h>\r
 #include <Library/SerialPortLib.h>\r
+\r
+#include <Ppi/ArmGlobalVariable.h>\r
 #include <Chipset/ArmV7.h>\r
 \r
 #include "PrePeiCore.h"\r
 \r
 EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI   mSecTemporaryRamSupportPpi = {SecTemporaryRamSupport};\r
+ARM_GLOBAL_VARIABLE_PPI             mGlobalVariablePpi = { PrePeiCoreGetGlobalVariableMemory };\r
 \r
-EFI_PEI_PPI_DESCRIPTOR      gSecPpiTable[] = {\r
+EFI_PEI_PPI_DESCRIPTOR      gCommonPpiTable[] = {\r
   {\r
-    EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r
+    EFI_PEI_PPI_DESCRIPTOR_PPI,\r
     &gEfiTemporaryRamSupportPpiGuid,\r
     &mSecTemporaryRamSupportPpi\r
+  },\r
+  {\r
+    EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r
+    &gArmGlobalVariablePpiGuid,\r
+    &mGlobalVariablePpi\r
   }\r
 };\r
 \r
@@ -97,6 +103,17 @@ SecTemporaryRamSupport (
 \r
   SecSwitchStack((UINTN)(PermanentMemoryBase - TemporaryMemoryBase));\r
 \r
+EFI_STATUS\r
+PrePeiCoreGetGlobalVariableMemory (\r
+  OUT EFI_PHYSICAL_ADDRESS    *GlobalVariableBase\r
+  )\r
+{\r
+  ASSERT (GlobalVariableBase != NULL);\r
+\r
+  *GlobalVariableBase = (UINTN)PcdGet32 (PcdCPUCoresStackBase) +\r
+                        (UINTN)PcdGet32 (PcdCPUCorePrimaryStackSize) -\r
+                        (UINTN)PcdGet32 (PcdPeiGlobalVariableSize);\r
+\r
   return EFI_SUCCESS;\r
 }\r
 \r