--- /dev/null
+/** @file\r
+ IA-32/x64 AsmEnablePaging64()\r
+\r
+ Copyright (c) 2006, Intel Corporation<BR>\r
+ All rights reserved. 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
+\r
+\r
+\r
+#include "BaseLibInternals.h"\r
+\r
+/**\r
+ Enables the 64-bit paging mode on the CPU.\r
+\r
+ Enables the 64-bit paging mode on the CPU. CR0, CR3, CR4, and the page tables\r
+ must be properly initialized prior to calling this service. This function\r
+ assumes the current execution mode is 32-bit protected mode with flat\r
+ descriptors. This function is only available on IA-32. After the 64-bit\r
+ paging mode is enabled, control is transferred to the function specified by\r
+ EntryPoint using the new stack specified by NewStack and passing in the\r
+ parameters specified by Context1 and Context2. Context1 and Context2 are\r
+ optional and may be 0. The function EntryPoint must never return.\r
+\r
+ If the current execution mode is not 32-bit protected mode with flat\r
+ descriptors, then ASSERT().\r
+ If EntryPoint is 0, then ASSERT().\r
+ If NewStack is 0, then ASSERT().\r
+\r
+ @param Cs The 16-bit selector to load in the CS before EntryPoint\r
+ is called. The descriptor in the GDT that this selector\r
+ references must be setup for long mode.\r
+ @param EntryPoint The 64-bit virtual address of the function to call with\r
+ the new stack after paging is enabled.\r
+ @param Context1 The 64-bit virtual address of the context to pass into\r
+ the EntryPoint function as the first parameter after\r
+ paging is enabled.\r
+ @param Context2 The 64-bit virtual address of the context to pass into\r
+ the EntryPoint function as the second parameter after\r
+ paging is enabled.\r
+ @param NewStack The 64-bit virtual address of the new stack to use for\r
+ the EntryPoint function after paging is enabled.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+AsmEnablePaging64 (\r
+ IN UINT16 Cs,\r
+ IN UINT64 EntryPoint,\r
+ IN UINT64 Context1, OPTIONAL\r
+ IN UINT64 Context2, OPTIONAL\r
+ IN UINT64 NewStack\r
+ )\r
+{\r
+ ASSERT (EntryPoint != 0);\r
+ ASSERT (NewStack != 0);\r
+ InternalX86EnablePaging64 (Cs, EntryPoint, Context1, Context2, NewStack);\r
+}\r