c9093a06 |
1 | /*++\r |
2 | \r |
3 | Copyright (c) 2006, Intel Corporation \r |
4 | All rights reserved. This program and the accompanying materials \r |
5 | are licensed and made available under the terms and conditions of the BSD License \r |
6 | which accompanies this distribution. The full text of the license may be found at \r |
7 | http://opensource.org/licenses/bsd-license.php \r |
8 | \r |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
11 | \r |
12 | Module Name:\r |
13 | UnixFwh.c\r |
14 | \r |
15 | Abstract:\r |
16 | PEIM to abstract construction of firmware volume in an Unix environment.\r |
17 | \r |
18 | Revision History\r |
19 | \r |
20 | --*/\r |
21 | \r |
22 | \r |
23 | #include <FlashLayout.h>\r |
24 | \r |
25 | \r |
26 | EFI_STATUS\r |
27 | EFIAPI\r |
28 | PeimInitializeUnixFwh (\r |
29 | IN EFI_FFS_FILE_HEADER *FfsHeader,\r |
30 | IN EFI_PEI_SERVICES **PeiServices\r |
31 | )\r |
32 | /*++\r |
33 | \r |
34 | Routine Description:\r |
35 | Perform a call-back into the SEC simulator to get address of the Firmware Hub\r |
36 | \r |
37 | Arguments:\r |
38 | FfsHeader - Ffs Header availible to every PEIM\r |
39 | PeiServices - General purpose services available to every PEIM.\r |
40 | \r |
41 | Returns:\r |
42 | None\r |
43 | \r |
44 | --*/\r |
45 | {\r |
46 | EFI_STATUS Status;\r |
47 | EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;\r |
48 | UNIX_FWH_PPI *FwhPpi;\r |
49 | EFI_PHYSICAL_ADDRESS FdBase;\r |
50 | EFI_FIRMWARE_VOLUME_HEADER *FvHeader;\r |
51 | UINT64 FdSize;\r |
52 | UINTN Index;\r |
53 | \r |
54 | DEBUG ((EFI_D_ERROR, "Unix Firmware Volume PEIM Loaded\n"));\r |
55 | \r |
56 | //\r |
57 | // Get the Fwh Information PPI\r |
58 | //\r |
59 | Status = (**PeiServices).LocatePpi (\r |
60 | PeiServices,\r |
61 | &gUnixFwhPpiGuid, // GUID\r |
62 | 0, // INSTANCE\r |
63 | &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR\r |
64 | (VOID **)&FwhPpi // PPI\r |
65 | );\r |
66 | ASSERT_EFI_ERROR (Status);\r |
67 | \r |
68 | Index = 0;\r |
69 | do {\r |
70 | //\r |
71 | // Get information about all the FD's in the system\r |
72 | //\r |
73 | Status = FwhPpi->UnixFwh (Index, &FdBase, &FdSize);\r |
74 | if (!EFI_ERROR (Status)) {\r |
75 | //\r |
76 | // Assume the FD starts with an FV header\r |
77 | //\r |
78 | FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) FdBase;\r |
79 | \r |
80 | //\r |
81 | // Make an FV Hob for the first FV in the FD\r |
82 | //\r |
83 | BuildFvHob (FdBase, FvHeader->FvLength);\r |
84 | \r |
85 | if (Index == 0) {\r |
86 | //\r |
87 | // Assume the first FD was produced by the NT32.DSC\r |
88 | // All these strange offests are needed to keep in\r |
89 | // sync with the FlashMap and NT32.dsc file\r |
90 | //\r |
91 | BuildResourceDescriptorHob (\r |
92 | EFI_RESOURCE_FIRMWARE_DEVICE,\r |
93 | (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),\r |
94 | FdBase,\r |
95 | (FvHeader->FvLength + EFI_WINNT_RUNTIME_UPDATABLE_LENGTH + EFI_WINNT_FTW_SPARE_BLOCK_LENGTH)\r |
96 | );\r |
97 | \r |
98 | //\r |
99 | // Hard code the address of the spare block and variable services.\r |
100 | // Assume it's a hard coded offset from FV0 in FD0.\r |
101 | //\r |
102 | FdBase = FdBase + EFI_WINNT_RUNTIME_UPDATABLE_OFFSET;\r |
103 | FdSize = EFI_WINNT_RUNTIME_UPDATABLE_LENGTH + EFI_WINNT_FTW_SPARE_BLOCK_LENGTH;\r |
104 | \r |
105 | BuildFvHob (FdBase, FdSize);\r |
106 | } else {\r |
107 | //\r |
108 | // For other FD's just map them in.\r |
109 | //\r |
110 | BuildResourceDescriptorHob (\r |
111 | EFI_RESOURCE_FIRMWARE_DEVICE,\r |
112 | (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),\r |
113 | FdBase,\r |
114 | FdSize\r |
115 | );\r |
116 | }\r |
117 | }\r |
118 | \r |
119 | Index++;\r |
120 | } while (!EFI_ERROR (Status));\r |
121 | \r |
122 | return Status;\r |
123 | }\r |