+++ /dev/null
-#------------------------------------------------------------------------------\r
-#\r
-# Copyright (c) 2015 - 2016, 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
-# Abstract:\r
-#\r
-# This is the code that goes from real-mode to protected mode.\r
-# It consumes the reset vector, configures the stack.\r
-#\r
-#------------------------------------------------------------------------------\r
-\r
-\r
-#\r
-# Contrary to the name, this file contains 16 bit code as well.\r
-#\r
-.text\r
-\r
-ASM_GLOBAL ASM_PFX(SecPlatformInit)\r
-ASM_PFX(SecPlatformInit):\r
- movd %mm7, %esi # restore ESP from MM7\r
- jmp *%esi\r
-\r
-#----------------------------------------------------------------------------\r
-#\r
-# Procedure: ProtectedModeEntryPoint\r
-#\r
-# Input: Executing in 32 Bit Protected (flat) mode\r
-# cs: 0-4GB\r
-# ds: 0-4GB\r
-# es: 0-4GB\r
-# fs: 0-4GB\r
-# gs: 0-4GB\r
-# ss: 0-4GB\r
-#\r
-# Output: This function never returns\r
-#\r
-# Destroys:\r
-# ecx\r
-# edi\r
-# esi\r
-# esp\r
-#\r
-# Description:\r
-# Perform any essential early platform initilaisation\r
-# Setup a stack\r
-#\r
-#----------------------------------------------------------------------------\r
-ProtectedModeEntryPoint:\r
- #\r
- # Dummy function. Consume 2 API to make sure they can be linked.\r
- #\r
- movl ASM_PFX(TempRamInitApi), %eax\r
- #\r
- # Should never return\r
- #\r
- jmp . #'$'\r
-\r
-#\r
-# ROM-based Global-Descriptor Table for the PEI Phase\r
-#\r
-.align 16\r
-#\r
-# GDT[0]: 000h: Null entry, never used.\r
-#\r
-.equ NULL_SEL, . - GDT_BASE # Selector [0]\r
-GDT_BASE: \r
-BootGdtTable: \r
- .long 0\r
- .long 0\r
-#\r
-# Linear code segment descriptor\r
-#\r
-.equ LINEAR_CODE_SEL, . - GDT_BASE # Selector [08h]\r
- .word 0xFFFF # limit 0FFFFh\r
- .word 0 # base 0\r
- .byte 0\r
- .byte 0x9B # present, ring 0, data, expand-up, not-writable\r
- .byte 0xCF # page-granular, 32-bit\r
- .byte 0\r
-#\r
-# System data segment descriptor\r
-#\r
-.equ SYS_DATA_SEL, . - GDT_BASE # Selector [010h]\r
- .word 0xFFFF # limit 0FFFFh\r
- .word 0 # base 0\r
- .byte 0\r
- .byte 0x93 # present, ring 0, data, expand-up, not-writable\r
- .byte 0xCF # page-granular, 32-bit\r
- .byte 0\r
-\r
-.equ GDT_SIZE, . - BootGdtTable # Size, in bytes\r
-\r
-#\r
-# GDT Descriptor\r
-#\r
-GdtDesc: # GDT descriptor\r
- .word GDT_SIZE - 1 \r
- .long BootGdtTable \r
-\r
-ProtectedModeEntryLinearAddress:\r
-ProtectedModeEntryLinearOffset:\r
- .long ProtectedModeEntryPoint\r
- .word LINEAR_CODE_SEL\r