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e08bfc7d JY |
1 | /** @file\r |
2 | SMM driver instance of SmiHandlerProfile Library.\r | |
3 | \r | |
4 | Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\r | |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
e08bfc7d JY |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include <PiSmm.h>\r | |
10 | #include <Library/SmiHandlerProfileLib.h>\r | |
11 | #include <Library/SmmServicesTableLib.h>\r | |
12 | #include <Guid/SmiHandlerProfile.h>\r | |
13 | \r | |
14 | SMI_HANDLER_PROFILE_PROTOCOL *mSmiHandlerProfile;\r | |
15 | \r | |
16 | /**\r | |
17 | This function is called by SmmChildDispatcher module to report\r | |
18 | a new SMI handler is registered, to SmmCore.\r | |
19 | \r | |
20 | @param HandlerGuid The GUID to identify the type of the handler.\r | |
21 | For the SmmChildDispatch protocol, the HandlerGuid\r | |
22 | must be the GUID of SmmChildDispatch protocol.\r | |
23 | @param Handler The SMI handler.\r | |
24 | @param CallerAddress The address of the module who registers the SMI handler.\r | |
25 | @param Context The context of the SMI handler.\r | |
26 | For the SmmChildDispatch protocol, the Context\r | |
27 | must match the one defined for SmmChildDispatch protocol.\r | |
28 | @param ContextSize The size of the context in bytes.\r | |
29 | For the SmmChildDispatch protocol, the Context\r | |
30 | must match the one defined for SmmChildDispatch protocol.\r | |
31 | \r | |
32 | @retval EFI_SUCCESS The information is recorded.\r | |
33 | @retval EFI_UNSUPPORTED The feature is unsupported.\r | |
34 | @retval EFI_OUT_OF_RESOURCES There is no enough resource to record the information.\r | |
35 | **/\r | |
36 | EFI_STATUS\r | |
37 | EFIAPI\r | |
38 | SmiHandlerProfileRegisterHandler (\r | |
39 | IN EFI_GUID *HandlerGuid,\r | |
40 | IN EFI_SMM_HANDLER_ENTRY_POINT2 Handler,\r | |
41 | IN PHYSICAL_ADDRESS CallerAddress,\r | |
42 | IN VOID *Context, OPTIONAL\r | |
43 | IN UINTN ContextSize OPTIONAL\r | |
44 | )\r | |
45 | {\r | |
46 | if (mSmiHandlerProfile != NULL) {\r | |
47 | return mSmiHandlerProfile->RegisterHandler (mSmiHandlerProfile, HandlerGuid, Handler, CallerAddress, Context, ContextSize);\r | |
48 | }\r | |
49 | return EFI_UNSUPPORTED;\r | |
50 | }\r | |
51 | \r | |
52 | /**\r | |
53 | This function is called by SmmChildDispatcher module to report\r | |
54 | an existing SMI handler is unregistered, to SmmCore.\r | |
55 | \r | |
56 | @param HandlerGuid The GUID to identify the type of the handler.\r | |
57 | For the SmmChildDispatch protocol, the HandlerGuid\r | |
58 | must be the GUID of SmmChildDispatch protocol.\r | |
59 | @param Handler The SMI handler.\r | |
cb716d29 JY |
60 | @param Context The context of the SMI handler.\r |
61 | If it is NOT NULL, it will be used to check what is registered.\r | |
62 | @param ContextSize The size of the context in bytes.\r | |
63 | If Context is NOT NULL, it will be used to check what is registered.\r | |
e08bfc7d JY |
64 | \r |
65 | @retval EFI_SUCCESS The original record is removed.\r | |
66 | @retval EFI_UNSUPPORTED The feature is unsupported.\r | |
67 | @retval EFI_NOT_FOUND There is no record for the HandlerGuid and handler.\r | |
68 | **/\r | |
69 | EFI_STATUS\r | |
70 | EFIAPI\r | |
71 | SmiHandlerProfileUnregisterHandler (\r | |
72 | IN EFI_GUID *HandlerGuid,\r | |
cb716d29 JY |
73 | IN EFI_SMM_HANDLER_ENTRY_POINT2 Handler,\r |
74 | IN VOID *Context, OPTIONAL\r | |
75 | IN UINTN ContextSize OPTIONAL\r | |
e08bfc7d JY |
76 | )\r |
77 | {\r | |
78 | if (mSmiHandlerProfile != NULL) {\r | |
cb716d29 | 79 | return mSmiHandlerProfile->UnregisterHandler (mSmiHandlerProfile, HandlerGuid, Handler, Context, ContextSize);\r |
e08bfc7d JY |
80 | }\r |
81 | return EFI_UNSUPPORTED;\r | |
82 | }\r | |
83 | \r | |
84 | /**\r | |
85 | The constructor function for SMI handler profile.\r | |
86 | \r | |
87 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
88 | @param SystemTable A pointer to the EFI System Table.\r | |
89 | \r | |
90 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r | |
91 | **/\r | |
92 | EFI_STATUS\r | |
93 | EFIAPI\r | |
94 | SmmSmiHandlerProfileLibConstructor (\r | |
95 | IN EFI_HANDLE ImageHandle,\r | |
96 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
97 | )\r | |
98 | {\r | |
99 | gSmst->SmmLocateProtocol (\r | |
100 | &gSmiHandlerProfileGuid,\r | |
101 | NULL,\r | |
8c1183a8 | 102 | (VOID **) &mSmiHandlerProfile\r |
e08bfc7d JY |
103 | );\r |
104 | return EFI_SUCCESS;\r | |
105 | }\r | |
106 | \r |