]>
Commit | Line | Data |
---|---|---|
d3109e5f MX |
1 | /** @file\r |
2 | TdxHelperLib header file\r | |
3 | \r | |
4 | Copyright (c) 2021 - 2023, Intel Corporation. All rights reserved.<BR>\r | |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
6 | \r | |
7 | **/\r | |
8 | \r | |
9 | #ifndef TDX_HELPER_LIB_H\r | |
10 | #define TDX_HELPER_LIB_H\r | |
11 | \r | |
12 | #include <PiPei.h>\r | |
13 | \r | |
14 | /**\r | |
15 | In Tdx guest, some information need to be passed from host VMM to guest\r | |
16 | firmware. For example, the memory resource, etc. These information are\r | |
17 | prepared by host VMM and put in TdHob which is described in TdxMetadata.\r | |
18 | TDVF processes the TdHob to accept memories.\r | |
19 | \r | |
20 | @retval EFI_SUCCESS Successfully process the TdHob\r | |
21 | @retval Others Other error as indicated\r | |
22 | **/\r | |
23 | EFI_STATUS\r | |
24 | EFIAPI\r | |
25 | TdxHelperProcessTdHob (\r | |
26 | VOID\r | |
27 | );\r | |
28 | \r | |
29 | /**\r | |
30 | In Tdx guest, TdHob is passed from host VMM to guest firmware and it contains\r | |
31 | the information of the memory resource. From the security perspective before\r | |
32 | it is consumed, it should be measured and extended.\r | |
33 | *\r | |
34 | * @retval EFI_SUCCESS Successfully measure the TdHob\r | |
35 | * @retval Others Other error as indicated\r | |
36 | */\r | |
37 | EFI_STATUS\r | |
38 | EFIAPI\r | |
39 | TdxHelperMeasureTdHob (\r | |
40 | VOID\r | |
41 | );\r | |
42 | \r | |
43 | /**\r | |
44 | * In Tdx guest, Configuration FV (CFV) is treated as external input because it\r | |
45 | * may contain the data provided by VMM. From the sucurity perspective Cfv image\r | |
46 | * should be measured before it is consumed.\r | |
47 | *\r | |
48 | * @retval EFI_SUCCESS Successfully measure the CFV image\r | |
49 | * @retval Others Other error as indicated\r | |
50 | */\r | |
51 | EFI_STATUS\r | |
52 | EFIAPI\r | |
53 | TdxHelperMeasureCfvImage (\r | |
54 | VOID\r | |
55 | );\r | |
56 | \r | |
57 | /**\r | |
58 | Build the GuidHob for tdx measurements which were done in SEC phase.\r | |
59 | The measurement values are stored in WorkArea.\r | |
60 | \r | |
61 | @retval EFI_SUCCESS The GuidHob is built successfully\r | |
62 | @retval Others Other errors as indicated\r | |
63 | **/\r | |
64 | EFI_STATUS\r | |
65 | EFIAPI\r | |
66 | TdxHelperBuildGuidHobForTdxMeasurement (\r | |
67 | VOID\r | |
68 | );\r | |
69 | \r | |
70 | #endif\r |