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1 | /** @file\r |
2 | SMM Firmware Volume Block Driver for Lakeport Platform.\r | |
3 | \r | |
4 | Firmware volume block driver for FWH or SPI device.\r | |
5 | It depends on which Flash Device Library to be linked with this driver.\r | |
6 | \r | |
7 | Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
8 | \r\r | |
9 | This program and the accompanying materials are licensed and made available under\r\r | |
10 | the terms and conditions of the BSD License that accompanies this distribution. \r\r | |
11 | The full text of the license may be found at \r\r | |
12 | http://opensource.org/licenses/bsd-license.php. \r\r | |
13 | \r\r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r\r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r\r | |
16 | \r\r | |
17 | \r | |
18 | **/\r | |
19 | \r | |
20 | #include <PiSmm.h>\r | |
21 | #include <Library/SmmServicesTableLib.h>\r | |
22 | #include "FvbSmmCommon.h"\r | |
23 | #include "FvbService.h"\r | |
24 | \r | |
25 | /**\r | |
26 | The function installs EFI_SMM_FIRMWARE_VOLUME_BLOCK protocol\r | |
27 | for each FV in the system.\r | |
28 | \r | |
29 | @param[in] FwhInstance The pointer to a FW volume instance structure,\r | |
30 | which contains the information about one FV.\r | |
31 | @param[in] InstanceNum The instance number which can be used as a ID\r | |
32 | to locate this FwhInstance in other functions.\r | |
33 | \r | |
34 | @retval VOID\r | |
35 | \r | |
36 | **/\r | |
37 | VOID\r | |
38 | InstallFvbProtocol (\r | |
39 | IN EFI_FW_VOL_INSTANCE *FwhInstance,\r | |
40 | IN UINTN InstanceNum\r | |
41 | )\r | |
42 | {\r | |
43 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
44 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
45 | EFI_STATUS Status;\r | |
46 | EFI_HANDLE FvbHandle;\r | |
47 | \r | |
48 | FvbDevice = (EFI_FW_VOL_BLOCK_DEVICE *) AllocateRuntimeCopyPool (\r | |
49 | sizeof (EFI_FW_VOL_BLOCK_DEVICE),\r | |
50 | &mFvbDeviceTemplate\r | |
51 | );\r | |
52 | ASSERT (FvbDevice != NULL);\r | |
53 | \r | |
54 | FvbDevice->Instance = InstanceNum;\r | |
55 | FwVolHeader = &FwhInstance->VolumeHeader;\r | |
56 | \r | |
57 | //\r | |
58 | // Set up the devicepath.\r | |
59 | //\r | |
60 | if (FwVolHeader->ExtHeaderOffset == 0) {\r | |
61 | //\r | |
62 | // FV does not contains extension header, then produce MEMMAP_DEVICE_PATH.\r | |
63 | //\r | |
64 | FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateRuntimeCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH), &mFvMemmapDevicePathTemplate);\r | |
65 | ((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.StartingAddress = FwhInstance->FvBase;\r | |
66 | ((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.EndingAddress = FwhInstance->FvBase + FwVolHeader->FvLength - 1;\r | |
67 | } else {\r | |
68 | FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateRuntimeCopyPool (sizeof (FV_PIWG_DEVICE_PATH), &mFvPIWGDevicePathTemplate);\r | |
69 | CopyGuid (\r | |
70 | &((FV_PIWG_DEVICE_PATH *)FvbDevice->DevicePath)->FvDevPath.FvName,\r | |
71 | (GUID *)(UINTN)(FwhInstance->FvBase + FwVolHeader->ExtHeaderOffset)\r | |
72 | );\r | |
73 | }\r | |
74 | \r | |
75 | //\r | |
76 | // Install the SMM Firmware Volume Block Protocol and Device Path Protocol.\r | |
77 | //\r | |
78 | FvbHandle = NULL;\r | |
79 | Status = gSmst->SmmInstallProtocolInterface (\r | |
80 | &FvbHandle,\r | |
81 | &gEfiSmmFirmwareVolumeBlockProtocolGuid,\r | |
82 | EFI_NATIVE_INTERFACE,\r | |
83 | &FvbDevice->FwVolBlockInstance\r | |
84 | );\r | |
85 | ASSERT_EFI_ERROR (Status);\r | |
86 | \r | |
87 | Status = gSmst->SmmInstallProtocolInterface (\r | |
88 | &FvbHandle,\r | |
89 | &gEfiDevicePathProtocolGuid,\r | |
90 | EFI_NATIVE_INTERFACE,\r | |
91 | FvbDevice->DevicePath\r | |
92 | );\r | |
93 | ASSERT_EFI_ERROR (Status);\r | |
94 | \r | |
95 | //\r | |
96 | // Notify the Fvb wrapper driver SMM fvb is ready.\r | |
97 | //\r | |
98 | FvbHandle = NULL;\r | |
99 | Status = gBS->InstallProtocolInterface (\r | |
100 | &FvbHandle,\r | |
101 | &gEfiSmmFirmwareVolumeBlockProtocolGuid,\r | |
102 | EFI_NATIVE_INTERFACE,\r | |
103 | &FvbDevice->FwVolBlockInstance\r | |
104 | );\r | |
105 | }\r | |
106 | \r | |
107 | \r | |
108 | /**\r | |
109 | The driver entry point for SMM Firmware Volume Block Driver.\r | |
110 | \r | |
111 | The function does the necessary initialization work\r | |
112 | Firmware Volume Block Driver.\r | |
113 | \r | |
114 | @param[in] ImageHandle The firmware allocated handle for the UEFI image.\r | |
115 | @param[in] SystemTable A pointer to the EFI system table.\r | |
116 | \r | |
117 | @retval EFI_SUCCESS This funtion always return EFI_SUCCESS.\r | |
118 | It will ASSERT on errors.\r | |
119 | \r | |
120 | **/\r | |
121 | EFI_STATUS\r | |
122 | EFIAPI\r | |
123 | FvbSmmInitialize (\r | |
124 | IN EFI_HANDLE ImageHandle,\r | |
125 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
126 | )\r | |
127 | {\r | |
128 | FvbInitialize ();\r | |
129 | \r | |
130 | return EFI_SUCCESS;\r | |
131 | }\r | |
132 | \r |