+++ /dev/null
-;------------------------------------------------------------------------------\r
-; @file\r
-; Transition from 32 bit flat protected mode into 64 bit flat protected mode\r
-;\r
-; Copyright (c) 2008 - 2009, 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
-;------------------------------------------------------------------------------\r
-\r
-BITS 32\r
-\r
-;\r
-; Modified: EAX\r
-;\r
-Transition32FlatTo64Flat:\r
-\r
- mov eax, ((ADDR_OF_START_OF_RESET_CODE & ~0xfff) - 0x1000)\r
- mov cr3, eax\r
-\r
- mov eax, cr4\r
- bts eax, 5 ; enable PAE\r
- mov cr4, eax \r
-\r
- mov ecx, 0xc0000080\r
- rdmsr\r
- bts eax, 8 ; set LME\r
- wrmsr\r
-\r
- mov eax, cr0\r
- bts eax, 31 ; set PG\r
- mov cr0, eax ; enable paging\r
-\r
- jmp LINEAR_CODE64_SEL:ADDR_OF(jumpTo64BitAndLandHere)\r
-BITS 64\r
-jumpTo64BitAndLandHere:\r
-\r
- debugShowPostCode POSTCODE_64BIT_MODE\r
-\r
- OneTimeCallRet Transition32FlatTo64Flat\r
-\r