Pkg-Module: CorebootModulePkg

[mirror_edk2.git] / CorebootModulePkg / SecCore / Ia32 / SecEntry.S

diff --git a/CorebootModulePkg/SecCore/Ia32/SecEntry.S b/CorebootModulePkg/SecCore/Ia32/SecEntry.S
new file mode 100644 (file)
index 0000000..7133a9e
--- /dev/null
+++ b/CorebootModulePkg/SecCore/Ia32/SecEntry.S
@@ -0,0 +1,74 @@
+#------------------------------------------------------------------------------\r
+#\r
+# Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>\r
+# This program and the accompanying materials\r
+# are licensed and made available under the terms and conditions of the BSD License\r
+# which accompanies this distribution.  The full text of the license may be found at\r
+# http://opensource.org/licenses/bsd-license.php.\r
+#\r
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+#\r
+# Module Name:\r
+#\r
+#  SecEntry.S\r
+#\r
+# Abstract:\r
+#\r
+#  This is the code that begins in protected mode.\r
+#   It will transfer the control to pei core.\r
+#\r
+#------------------------------------------------------------------------------\r
+\r
+ASM_GLOBAL  ASM_PFX(SecStartup)\r
+\r
+# Pcds\r
+ASM_GLOBAL  ASM_PFX(PcdGet32 (PcdPayloadFdMemBase))\r
+\r
+#\r
+# SecCore Entry Point\r
+#\r
+# Processor is in flat protected mode\r
+#\r
+# @param[in]  EAX   Initial value of the EAX register (BIST: Built-in Self Test)\r
+# @param[in]  DI    'BP': boot-strap processor, or 'AP': application processor\r
+# @param[in]  EBP   Pointer to the start of the Boot Firmware Volume\r
+#\r
+# @return     None  This routine does not return\r
+#\r
+ASM_GLOBAL ASM_PFX(_ModuleEntryPoint)\r
+ASM_PFX(_ModuleEntryPoint):\r
+  #\r
+  # Disable all the interrupts\r
+  #\r
+  cli\r
+  \r
+  #\r
+  # Construct the temporary memory at 0x80000, length 0x10000\r
+  #\r
+  movl ($BASE_512KB + $SIZE_64KB), %esp\r
+\r
+  #\r
+  # Pass BFV into the PEI Core\r
+  #\r
+  pushl ASM_PFX(PcdGet32 (PcdPayloadFdMemBase))\r
+  \r
+  #\r
+  # Pass stack base into the PEI Core\r
+  #\r
+  pushl $BASE_512KB\r
+\r
+  #\r
+  # Pass stack size into the PEI Core\r
+  #\r
+  pushl $SIZE_64KB\r
+\r
+  #\r
+  # Pass Control into the PEI Core\r
+  #\r
+  call SecStartup\r
+  \r
+  #\r
+  # Never return to here\r
+  #\r
+  jmp .\r