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e1f414b6 | 1 | /** @file\r |
2 | Non-existing BaseLib functions on Ia32\r | |
3 | \r | |
bb817c56 HT |
4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
5 | This program and the accompanying materials\r | |
e1f414b6 | 6 | are licensed and made available under the terms and conditions of the BSD License\r |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
e1f414b6 | 13 | **/\r |
14 | \r | |
83584954 | 15 | #include <Library/DebugLib.h>\r |
e1f414b6 | 16 | \r |
17 | /**\r | |
18 | Disables the 64-bit paging mode on the CPU.\r | |
19 | \r | |
20 | Disables the 64-bit paging mode on the CPU and returns to 32-bit protected\r | |
21 | mode. This function assumes the current execution mode is 64-paging mode.\r | |
030cd1a2 | 22 | This function is only available on x64. After the 64-bit paging mode is\r |
e1f414b6 | 23 | disabled, control is transferred to the function specified by EntryPoint\r |
24 | using the new stack specified by NewStack and passing in the parameters\r | |
25 | specified by Context1 and Context2. Context1 and Context2 are optional and\r | |
26 | may be 0. The function EntryPoint must never return.\r | |
27 | \r | |
2a254b90 | 28 | @param CodeSelector The 16-bit selector to load in the CS before EntryPoint\r |
29 | is called. The descriptor in the GDT that this selector\r | |
30 | references must be setup for 32-bit protected mode.\r | |
83584954 | 31 | @param EntryPoint The 64-bit virtual address of the function to call with\r |
32 | the new stack after paging is disabled.\r | |
33 | @param Context1 The 64-bit virtual address of the context to pass into\r | |
34 | the EntryPoint function as the first parameter after\r | |
35 | paging is disabled.\r | |
36 | @param Context2 The 64-bit virtual address of the context to pass into\r | |
37 | the EntryPoint function as the second parameter after\r | |
38 | paging is disabled.\r | |
39 | @param NewStack The 64-bit virtual address of the new stack to use for\r | |
40 | the EntryPoint function after paging is disabled.\r | |
e1f414b6 | 41 | \r |
42 | **/\r | |
43 | VOID\r | |
44 | EFIAPI\r | |
45 | InternalX86DisablePaging64 (\r | |
46 | IN UINT16 CodeSelector,\r | |
47 | IN UINT32 EntryPoint,\r | |
48 | IN UINT32 Context1, OPTIONAL\r | |
49 | IN UINT32 Context2, OPTIONAL\r | |
50 | IN UINT32 NewStack\r | |
51 | )\r | |
52 | {\r | |
53 | //\r | |
54 | // This function cannot work on IA32 platform\r | |
55 | //\r | |
56 | ASSERT (FALSE);\r | |
57 | }\r |