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fb511817 | 1 | /** @file\r |
2 | This driver installs SMBIOS information for OVMF\r | |
3 | \r | |
4 | Copyright (c) 2011, Bei Guan <gbtju85@gmail.com>\r | |
5f239ef7 | 5 | Copyright (c) 2011 - 2015, Intel Corporation. All rights reserved.<BR>\r |
fb511817 | 6 | \r |
b26f0cf9 | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
fb511817 | 8 | \r |
9 | **/\r | |
10 | \r | |
7e25086a LE |
11 | #include <IndustryStandard/SmBios.h> // SMBIOS_TABLE_TYPE0\r |
12 | #include <Library/DebugLib.h> // ASSERT_EFI_ERROR()\r | |
13 | #include <Library/MemoryAllocationLib.h> // FreePool()\r | |
14 | #include <Library/UefiBootServicesTableLib.h> // gBS\r | |
15 | #include <Protocol/Smbios.h> // EFI_SMBIOS_PROTOCOL\r | |
16 | \r | |
fb511817 | 17 | #include "SmbiosPlatformDxe.h"\r |
a8ab1442 | 18 | #include "XenSmbiosPlatformDxe.h"\r |
fb511817 | 19 | \r |
5f239ef7 JJ |
20 | #define TYPE0_STRINGS \\r |
21 | "EFI Development Kit II / OVMF\0" /* Vendor */ \\r | |
22 | "0.0.0\0" /* BiosVersion */ \\r | |
23 | "02/06/2015\0" /* BiosReleaseDate */\r | |
24256744 GS |
24 | //\r |
25 | // Type definition and contents of the default Type 0 SMBIOS table.\r | |
26 | //\r | |
27 | #pragma pack(1)\r | |
28 | typedef struct {\r | |
29 | SMBIOS_TABLE_TYPE0 Base;\r | |
5f239ef7 | 30 | UINT8 Strings[sizeof(TYPE0_STRINGS)];\r |
24256744 GS |
31 | } OVMF_TYPE0;\r |
32 | #pragma pack()\r | |
33 | \r | |
34 | STATIC CONST OVMF_TYPE0 mOvmfDefaultType0 = {\r | |
35 | {\r | |
36 | // SMBIOS_STRUCTURE Hdr\r | |
37 | {\r | |
38 | EFI_SMBIOS_TYPE_BIOS_INFORMATION, // UINT8 Type\r | |
39 | sizeof (SMBIOS_TABLE_TYPE0), // UINT8 Length\r | |
40 | },\r | |
41 | 1, // SMBIOS_TABLE_STRING Vendor\r | |
42 | 2, // SMBIOS_TABLE_STRING BiosVersion\r | |
43 | 0xE800,// UINT16 BiosSegment\r | |
44 | 3, // SMBIOS_TABLE_STRING BiosReleaseDate\r | |
45 | 0, // UINT8 BiosSize\r | |
46 | { // MISC_BIOS_CHARACTERISTICS BiosCharacteristics\r | |
47 | 0, // Reserved :2\r | |
48 | 0, // Unknown :1\r | |
49 | 1, // BiosCharacteristicsNotSupported :1\r | |
50 | // Remaining BiosCharacteristics bits left unset :60\r | |
51 | },\r | |
52 | { // BIOSCharacteristicsExtensionBytes[2]\r | |
53 | 0, // BiosReserved\r | |
54 | 0x1C // SystemReserved = VirtualMachineSupported |\r | |
55 | // UefiSpecificationSupported |\r | |
56 | // TargetContentDistributionEnabled\r | |
57 | },\r | |
58 | 0, // UINT8 SystemBiosMajorRelease\r | |
59 | 0, // UINT8 SystemBiosMinorRelease\r | |
60 | 0xFF, // UINT8 EmbeddedControllerFirmwareMajorRelease\r | |
61 | 0xFF // UINT8 EmbeddedControllerFirmwareMinorRelease\r | |
62 | },\r | |
63 | // Text strings (unformatted area)\r | |
5f239ef7 | 64 | TYPE0_STRINGS\r |
24256744 GS |
65 | };\r |
66 | \r | |
fb511817 | 67 | \r |
fb511817 | 68 | /**\r |
69 | Get SMBIOS record length.\r | |
70 | \r | |
71 | @param SmbiosTable SMBIOS pointer.\r | |
72 | \r | |
73 | **/\r | |
74 | UINTN\r | |
75 | SmbiosTableLength (\r | |
76 | IN SMBIOS_STRUCTURE_POINTER SmbiosTable\r | |
77 | )\r | |
78 | {\r | |
79 | CHAR8 *AChar;\r | |
80 | UINTN Length;\r | |
81 | \r | |
82 | AChar = (CHAR8 *)(SmbiosTable.Raw + SmbiosTable.Hdr->Length);\r | |
83 | \r | |
84 | //\r | |
85 | // Each structure shall be terminated by a double-null (SMBIOS spec.7.1)\r | |
86 | //\r | |
87 | while ((*AChar != 0) || (*(AChar + 1) != 0)) {\r | |
88 | AChar ++;\r | |
89 | }\r | |
90 | Length = ((UINTN)AChar - (UINTN)SmbiosTable.Raw + 2);\r | |
91 | \r | |
92 | return Length;\r | |
93 | }\r | |
94 | \r | |
95 | \r | |
96 | /**\r | |
97 | Install all structures from the given SMBIOS structures block\r | |
98 | \r | |
a145e28d | 99 | @param TableAddress SMBIOS tables starting address\r |
fb511817 | 100 | \r |
101 | **/\r | |
102 | EFI_STATUS\r | |
103 | InstallAllStructures (\r | |
a145e28d | 104 | IN UINT8 *TableAddress\r |
fb511817 | 105 | )\r |
106 | {\r | |
4db37456 | 107 | EFI_SMBIOS_PROTOCOL *Smbios;\r |
fb511817 | 108 | EFI_STATUS Status;\r |
109 | SMBIOS_STRUCTURE_POINTER SmbiosTable;\r | |
110 | EFI_SMBIOS_HANDLE SmbiosHandle;\r | |
24256744 | 111 | BOOLEAN NeedSmbiosType0;\r |
fb511817 | 112 | \r |
4db37456 LE |
113 | //\r |
114 | // Find the SMBIOS protocol\r | |
115 | //\r | |
116 | Status = gBS->LocateProtocol (\r | |
117 | &gEfiSmbiosProtocolGuid,\r | |
118 | NULL,\r | |
119 | (VOID**)&Smbios\r | |
120 | );\r | |
121 | if (EFI_ERROR (Status)) {\r | |
122 | return Status;\r | |
123 | }\r | |
124 | \r | |
a145e28d | 125 | SmbiosTable.Raw = TableAddress;\r |
fb511817 | 126 | if (SmbiosTable.Raw == NULL) {\r |
127 | return EFI_INVALID_PARAMETER;\r | |
128 | }\r | |
129 | \r | |
24256744 GS |
130 | NeedSmbiosType0 = TRUE;\r |
131 | \r | |
fb511817 | 132 | while (SmbiosTable.Hdr->Type != 127) {\r |
133 | //\r | |
134 | // Log the SMBIOS data for this structure\r | |
135 | //\r | |
6b23d767 | 136 | SmbiosHandle = SmbiosTable.Hdr->Handle;\r |
fb511817 | 137 | Status = Smbios->Add (\r |
138 | Smbios,\r | |
139 | NULL,\r | |
140 | &SmbiosHandle,\r | |
141 | (EFI_SMBIOS_TABLE_HEADER*) SmbiosTable.Raw\r | |
142 | );\r | |
143 | ASSERT_EFI_ERROR (Status);\r | |
144 | \r | |
24256744 GS |
145 | if (SmbiosTable.Hdr->Type == 0) {\r |
146 | NeedSmbiosType0 = FALSE;\r | |
147 | }\r | |
148 | \r | |
fb511817 | 149 | //\r |
150 | // Get the next structure address\r | |
151 | //\r | |
152 | SmbiosTable.Raw = (UINT8 *)(SmbiosTable.Raw + SmbiosTableLength (SmbiosTable));\r | |
153 | }\r | |
154 | \r | |
24256744 GS |
155 | if (NeedSmbiosType0) {\r |
156 | //\r | |
157 | // Add OVMF default Type 0 (BIOS Information) table\r | |
158 | //\r | |
159 | SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;\r | |
160 | Status = Smbios->Add (\r | |
161 | Smbios,\r | |
162 | NULL,\r | |
163 | &SmbiosHandle,\r | |
164 | (EFI_SMBIOS_TABLE_HEADER*) &mOvmfDefaultType0\r | |
165 | );\r | |
166 | ASSERT_EFI_ERROR (Status);\r | |
167 | }\r | |
168 | \r | |
fb511817 | 169 | return EFI_SUCCESS;\r |
170 | }\r | |
171 | \r | |
172 | \r | |
173 | /**\r | |
174 | Installs SMBIOS information for OVMF\r | |
175 | \r | |
176 | @param ImageHandle Module's image handle\r | |
177 | @param SystemTable Pointer of EFI_SYSTEM_TABLE\r | |
178 | \r | |
179 | @retval EFI_SUCCESS Smbios data successfully installed\r | |
180 | @retval Other Smbios data was not installed\r | |
181 | \r | |
182 | **/\r | |
183 | EFI_STATUS\r | |
184 | EFIAPI\r | |
185 | SmbiosTablePublishEntry (\r | |
186 | IN EFI_HANDLE ImageHandle,\r | |
187 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
188 | )\r | |
189 | {\r | |
190 | EFI_STATUS Status;\r | |
fb511817 | 191 | SMBIOS_TABLE_ENTRY_POINT *EntryPointStructure;\r |
a145e28d | 192 | UINT8 *SmbiosTables;\r |
fb511817 | 193 | \r |
50725937 | 194 | Status = EFI_NOT_FOUND;\r |
fb511817 | 195 | //\r |
a145e28d | 196 | // Add Xen or QEMU SMBIOS data if found\r |
fb511817 | 197 | //\r |
198 | EntryPointStructure = GetXenSmbiosTables ();\r | |
199 | if (EntryPointStructure != NULL) {\r | |
a145e28d GS |
200 | SmbiosTables = (UINT8*)(UINTN)EntryPointStructure->TableAddress;\r |
201 | } else {\r | |
202 | SmbiosTables = GetQemuSmbiosTables ();\r | |
203 | }\r | |
204 | \r | |
205 | if (SmbiosTables != NULL) {\r | |
4db37456 | 206 | Status = InstallAllStructures (SmbiosTables);\r |
a145e28d GS |
207 | \r |
208 | //\r | |
209 | // Free SmbiosTables if allocated by Qemu (i.e., NOT by Xen):\r | |
210 | //\r | |
211 | if (EntryPointStructure == NULL) {\r | |
212 | FreePool (SmbiosTables);\r | |
213 | }\r | |
fb511817 | 214 | }\r |
215 | \r | |
216 | return Status;\r | |
217 | }\r |