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e386b444 | 1 | /** @file\r |
2 | PEI Services Table Pointer Library.\r | |
7292888e | 3 | \r |
4 | This library is used for PEIM which does executed from flash device directly but\r | |
5 | executed in memory.\r | |
e386b444 | 6 | \r |
5240b97c | 7 | Copyright (c) 2006 - 2008, Intel Corporation<BR>\r |
e386b444 | 8 | All rights reserved. This program and the accompanying materials\r |
9 | are licensed and made available under the terms and conditions of the BSD License\r | |
10 | which accompanies this distribution. The full text of the license may be found at\r | |
11 | http://opensource.org/licenses/bsd-license.php\r | |
12 | \r | |
13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
15 | \r | |
e386b444 | 16 | **/\r |
17 | \r | |
c7d265a9 | 18 | #include <PiPei.h>\r |
c7d265a9 | 19 | #include <Library/PeiServicesTablePointerLib.h>\r |
20 | #include <Library/DebugLib.h>\r | |
e386b444 | 21 | \r |
fe467413 | 22 | CONST EFI_PEI_SERVICES **gPeiServices;\r |
e386b444 | 23 | \r |
81c7803c | 24 | /**\r |
f38fdc74 | 25 | The function set the pointer of PEI services immediately preceding the IDT table\r |
26 | according to PI specification.\r | |
81c7803c | 27 | \r |
f38fdc74 | 28 | @param PeiServicesTablePointer The address of PeiServices pointer.\r |
81c7803c | 29 | **/\r |
b0d803fe | 30 | VOID\r |
31 | EFIAPI\r | |
32 | SetPeiServicesTablePointer (\r | |
f38fdc74 | 33 | IN CONST EFI_PEI_SERVICES ** PeiServicesTablePointer\r |
b0d803fe | 34 | )\r |
35 | {\r | |
6c448d5b | 36 | gPeiServices = PeiServicesTablePointer;\r |
b0d803fe | 37 | }\r |
38 | \r | |
e386b444 | 39 | /**\r |
40 | The function returns the pointer to PEI services.\r | |
41 | \r | |
42 | The function returns the pointer to PEI services.\r | |
43 | It will ASSERT() if the pointer to PEI services is NULL.\r | |
44 | \r | |
45 | @retval The pointer to PeiServices.\r | |
46 | \r | |
47 | **/\r | |
5240b97c | 48 | CONST EFI_PEI_SERVICES **\r |
2884e3df | 49 | EFIAPI\r |
e386b444 | 50 | GetPeiServicesTablePointer (\r |
51 | VOID\r | |
52 | )\r | |
53 | {\r | |
54 | ASSERT (gPeiServices != NULL);\r | |
a86fda43 | 55 | return gPeiServices;\r |
e386b444 | 56 | }\r |
57 | \r | |
58 | \r | |
59 | /**\r | |
60 | The constructor function caches the pointer to PEI services.\r | |
61 | \r | |
62 | The constructor function caches the pointer to PEI services.\r | |
63 | It will always return EFI_SUCCESS.\r | |
64 | \r | |
42eedea9 | 65 | @param FileHandle Handle of FFS header the loaded driver.\r |
e386b444 | 66 | @param PeiServices Pointer to the PEI services.\r |
67 | \r | |
68 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r | |
69 | \r | |
70 | **/\r | |
71 | EFI_STATUS\r | |
72 | EFIAPI\r | |
73 | PeiServicesTablePointerLibConstructor (\r | |
a86fda43 | 74 | IN EFI_PEI_FILE_HANDLE FileHandle,\r |
75 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
e386b444 | 76 | )\r |
77 | {\r | |
78 | gPeiServices = PeiServices;\r | |
79 | return EFI_SUCCESS;\r | |
80 | }\r | |
81c7803c | 81 | \r |
81c7803c | 82 | \r |