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cc1d13c9 MK |
1 | /** @file\r |
2 | Installs the EDK II Crypto PPI. If this PEIM is dispatched before memory is\r | |
3 | discovered, the RegisterForShadow() feature is used to reload this PEIM into\r | |
4 | memory after memory is discovered.\r | |
5 | \r | |
6 | Copyright (C) Microsoft Corporation. All rights reserved.\r | |
7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
8 | \r | |
9 | **/\r | |
10 | \r | |
11 | #include <PiPei.h>\r | |
12 | #include <Library/PeiServicesLib.h>\r | |
13 | #include <Library/DebugLib.h>\r | |
14 | #include <Ppi/Crypto.h>\r | |
15 | \r | |
16 | extern CONST EDKII_CRYPTO_PROTOCOL mEdkiiCrypto;\r | |
17 | \r | |
18 | CONST EFI_PEI_PPI_DESCRIPTOR mEdkiiCryptoPpiList = {\r | |
19 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
20 | &gEdkiiCryptoPpiGuid,\r | |
21 | (EDKII_CRYPTO_PPI *) &mEdkiiCrypto\r | |
22 | };\r | |
23 | \r | |
24 | /**\r | |
25 | Entry to CryptoPeiEntry.\r | |
26 | \r | |
27 | @param FileHandle The image handle.\r | |
28 | @param PeiServices The PEI services table.\r | |
29 | \r | |
30 | @retval Status From internal routine or boot object, should not fail\r | |
31 | **/\r | |
32 | EFI_STATUS\r | |
33 | EFIAPI\r | |
34 | CryptoPeiEntry (\r | |
35 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
36 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
37 | )\r | |
38 | {\r | |
39 | EFI_STATUS Status;\r | |
40 | VOID *MemoryDiscoveredPpi;\r | |
41 | EDKII_CRYPTO_PPI *EdkiiCryptoPpi;\r | |
42 | EFI_PEI_PPI_DESCRIPTOR *EdkiiCryptoPpiDescriptor;\r | |
43 | \r | |
44 | //\r | |
45 | // Not all Open SSL services support XIP due to use of global variables.\r | |
46 | // Use gEfiPeiMemoryDiscoveredPpiGuid to detect Pre-Mem and Post-Mem and\r | |
47 | // always shadow this module in memory in Post-Mem.\r | |
48 | //\r | |
49 | Status = PeiServicesLocatePpi (\r | |
50 | &gEfiPeiMemoryDiscoveredPpiGuid,\r | |
51 | 0,\r | |
52 | NULL,\r | |
53 | (VOID **)&MemoryDiscoveredPpi\r | |
54 | );\r | |
55 | if (Status == EFI_NOT_FOUND) {\r | |
56 | //\r | |
57 | // CryptoPei is dispatched before gEfiPeiMemoryDiscoveredPpiGuid\r | |
58 | //\r | |
59 | Status = PeiServicesRegisterForShadow (FileHandle);\r | |
60 | ASSERT_EFI_ERROR (Status);\r | |
61 | if (!EFI_ERROR (Status)) {\r | |
62 | //\r | |
63 | // First CryptoPpi installation. CryptoPei could come from memory or flash\r | |
64 | // it will be re-installed after gEfiPeiMemoryDiscoveredPpiGuid\r | |
65 | //\r | |
66 | DEBUG ((DEBUG_INFO, "CryptoPeiEntry: Install Pre-Memory Crypto PPI\n"));\r | |
67 | Status = PeiServicesInstallPpi (&mEdkiiCryptoPpiList);\r | |
68 | ASSERT_EFI_ERROR (Status);\r | |
69 | }\r | |
70 | } else if (Status == EFI_SUCCESS) {\r | |
71 | //\r | |
72 | // CryptoPei is dispatched after gEfiPeiMemoryDiscoveredPpiGuid\r | |
73 | //\r | |
74 | Status = PeiServicesLocatePpi (\r | |
75 | &gEdkiiCryptoPpiGuid,\r | |
76 | 0,\r | |
77 | &EdkiiCryptoPpiDescriptor,\r | |
78 | (VOID **)&EdkiiCryptoPpi\r | |
79 | );\r | |
80 | if (!EFI_ERROR (Status)) {\r | |
81 | //\r | |
82 | // CryptoPei was also dispatched before gEfiPeiMemoryDiscoveredPpiGuid\r | |
83 | //\r | |
84 | DEBUG((DEBUG_INFO, "CryptoPeiEntry: ReInstall Post-Memmory Crypto PPI\n"));\r | |
85 | Status = PeiServicesReInstallPpi (\r | |
86 | EdkiiCryptoPpiDescriptor,\r | |
87 | &mEdkiiCryptoPpiList\r | |
88 | );\r | |
89 | ASSERT_EFI_ERROR (Status);\r | |
90 | } else {\r | |
91 | DEBUG ((DEBUG_INFO, "CryptoPeiEntry: Install Post-Memmory Crypto PPI\n"));\r | |
92 | Status = PeiServicesInstallPpi (&mEdkiiCryptoPpiList);\r | |
93 | }\r | |
94 | } else {\r | |
95 | ASSERT_EFI_ERROR (Status);\r | |
96 | }\r | |
97 | \r | |
98 | return Status;\r | |
99 | }\r |