1 files changed, 59 insertions, 55 deletions
diff --git a/OvmfPkg/Sec/Ia32/SecEntry.S b/OvmfPkg/Sec/Ia32/SecEntry.S
index a1b0c0d0f0..0771a87449 100644
--- a/OvmfPkg/Sec/Ia32/SecEntry.S
+++ b/OvmfPkg/Sec/Ia32/SecEntry.S
@@ -1,55 +1,59 @@
-#      TITLE   SecEntry.asm
-#------------------------------------------------------------------------------
-#*
-#*   Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
-#*   This program and the accompanying materials
-#*   are licensed and made available under the terms and conditions of the BSD License
-#*   which accompanies this distribution.  The full text of the license may be found at
-#*   http://opensource.org/licenses/bsd-license.php
-#*
-#*   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-#*   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#*
-#*    CpuAsm.asm
-#*
-#*   Abstract:
-#*
-#------------------------------------------------------------------------------
-
-
-#include <Base.h>
-
-#EXTERN ASM_PFX(SecCoreStartupWithStack)
-
-#
-# SecCore Entry Point
-#
-# Processor is in flat protected mode
-#
-# @param[in]  EAX   Initial value of the EAX register (BIST: Built-in Self Test)
-# @param[in]  DI    'BP': boot-strap processor, or 'AP': application processor
-# @param[in]  EBP   Pointer to the start of the Boot Firmware Volume
-#
-# @return     None  This routine does not return
-#
-ASM_GLOBAL ASM_PFX(_ModuleEntryPoint)
-ASM_PFX(_ModuleEntryPoint):
-
-    #
-    # Load temporary stack top at very low memory.  The C code
-    # can reload to a better address.
-    #
-    movl    $BASE_512KB, %eax 
-    movl    %eax, %esp
-    nop
-
-    #
-    # Call into C code
-    #
-    pushl   %eax
-    pushl   %ebp
-    call    ASM_PFX(SecCoreStartupWithStack)
-
-
-#END
-
+#      TITLE   SecEntry.asm
+#------------------------------------------------------------------------------
+#*
+#*   Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
+#*   This program and the accompanying materials
+#*   are licensed and made available under the terms and conditions of the BSD License
+#*   which accompanies this distribution.  The full text of the license may be found at
+#*   http://opensource.org/licenses/bsd-license.php
+#*
+#*   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#*   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#*
+#*    CpuAsm.asm
+#*
+#*   Abstract:
+#*
+#------------------------------------------------------------------------------
+
+
+#include <Base.h>
+
+#EXTERN ASM_PFX(SecCoreStartupWithStack)
+
+#
+# SecCore Entry Point
+#
+# Processor is in flat protected mode
+#
+# @param[in]  EAX   Initial value of the EAX register (BIST: Built-in Self Test)
+# @param[in]  DI    'BP': boot-strap processor, or 'AP': application processor
+# @param[in]  EBP   Pointer to the start of the Boot Firmware Volume
+#
+# @return     None  This routine does not return
+#
+ASM_GLOBAL ASM_PFX(_ModuleEntryPoint)
+ASM_PFX(_ModuleEntryPoint):
+
+    #
+    # Load temporary RAM stack based on PCDs
+    #
+    .set    SEC_TOP_OF_STACK, FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \
+                              FixedPcdGet32 (PcdOvmfSecPeiTempRamSize)
+    movl    $SEC_TOP_OF_STACK, %eax
+    movl    %eax, %esp
+    nop
+
+    #
+    # Setup parameters and call SecCoreStartupWithStack
+    #   [esp]   return address for call
+    #   [esp+4] BootFirmwareVolumePtr
+    #   [esp+8] TopOfCurrentStack
+    #
+    pushl   %eax
+    pushl   %ebp
+    call    ASM_PFX(SecCoreStartupWithStack)
+
+
+#END
+