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1 | /** @file\r |
2 | Capsule library runtime support.\r | |
3 | \r | |
4 | Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
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 | |
13 | **/\r | |
14 | \r | |
15 | #include <PiDxe.h>\r | |
16 | \r | |
17 | #include <Guid/FmpCapsule.h>\r | |
18 | #include <Guid/SystemResourceTable.h>\r | |
19 | #include <Guid/EventGroup.h>\r | |
20 | \r | |
21 | #include <Library/BaseLib.h>\r | |
22 | #include <Library/DebugLib.h>\r | |
23 | #include <Library/BaseMemoryLib.h>\r | |
24 | #include <Library/DxeServicesTableLib.h>\r | |
25 | #include <Library/UefiBootServicesTableLib.h>\r | |
26 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
27 | #include <Library/MemoryAllocationLib.h>\r | |
28 | \r | |
29 | extern EFI_SYSTEM_RESOURCE_TABLE *mEsrtTable;\r | |
30 | extern BOOLEAN mIsVirtualAddrConverted;\r | |
31 | \r | |
32 | /**\r | |
33 | Convert EsrtTable physical address to virtual address.\r | |
34 | \r | |
35 | @param[in] Event Event whose notification function is being invoked.\r | |
36 | @param[in] Context The pointer to the notification function's context, which\r | |
37 | is implementation-dependent.\r | |
38 | **/\r | |
39 | VOID\r | |
40 | EFIAPI\r | |
41 | DxeCapsuleLibVirtualAddressChangeEvent (\r | |
42 | IN EFI_EVENT Event,\r | |
43 | IN VOID *Context\r | |
44 | )\r | |
45 | {\r | |
46 | UINTN Index;\r | |
47 | EFI_CONFIGURATION_TABLE *ConfigEntry;\r | |
48 | \r | |
49 | //\r | |
50 | // Get Esrt table first\r | |
51 | //\r | |
52 | ConfigEntry = gST->ConfigurationTable;\r | |
53 | for (Index = 0; Index < gST->NumberOfTableEntries; Index++) {\r | |
54 | if (CompareGuid(&gEfiSystemResourceTableGuid, &ConfigEntry->VendorGuid)) {\r | |
55 | break;\r | |
56 | }\r | |
57 | ConfigEntry++;\r | |
58 | }\r | |
59 | \r | |
60 | //\r | |
61 | // If no Esrt table installed in Configure Table\r | |
62 | //\r | |
63 | if (Index < gST->NumberOfTableEntries) {\r | |
64 | //\r | |
65 | // Search Esrt to check given capsule is qualified\r | |
66 | //\r | |
67 | mEsrtTable = (EFI_SYSTEM_RESOURCE_TABLE *) ConfigEntry->VendorTable;\r | |
68 | \r | |
69 | //\r | |
70 | // Update protocol pointer to Esrt Table.\r | |
71 | //\r | |
72 | gRT->ConvertPointer (0x00, (VOID**) &(mEsrtTable));\r | |
73 | }\r | |
74 | \r | |
75 | mIsVirtualAddrConverted = TRUE;\r | |
76 | \r | |
77 | }\r | |
78 | \r | |
79 | /**\r | |
80 | The constructor function hook VirtualAddressChange event to use ESRT table as capsule routing table.\r | |
81 | \r | |
82 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
83 | @param SystemTable A pointer to the EFI System Table.\r | |
84 | \r | |
85 | @retval EFI_SUCCESS The constructor successfully .\r | |
86 | **/\r | |
87 | EFI_STATUS\r | |
88 | EFIAPI\r | |
89 | DxeRuntimeCapsuleLibConstructor (\r | |
90 | IN EFI_HANDLE ImageHandle,\r | |
91 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
92 | )\r | |
93 | {\r | |
94 | EFI_STATUS Status;\r | |
95 | EFI_EVENT Event;\r | |
96 | \r | |
97 | //\r | |
98 | // Make sure we can handle virtual address changes.\r | |
99 | //\r | |
100 | Event = NULL;\r | |
101 | Status = gBS->CreateEventEx (\r | |
102 | EVT_NOTIFY_SIGNAL,\r | |
103 | TPL_NOTIFY,\r | |
104 | DxeCapsuleLibVirtualAddressChangeEvent,\r | |
105 | NULL,\r | |
106 | &gEfiEventVirtualAddressChangeGuid,\r | |
107 | &Event\r | |
108 | );\r | |
109 | ASSERT_EFI_ERROR (Status);\r | |
110 | \r | |
111 | return EFI_SUCCESS;\r | |
112 | }\r |