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13d40edd | 1 | /** @file\r |
58612f24 | 2 | Capsule Runtime Driver produces two UEFI capsule runtime services.\r |
5d69642d | 3 | (UpdateCapsule, QueryCapsuleCapabilities)\r |
de5b0df9 | 4 | It installs the Capsule Architectural Protocol defined in PI1.0a to signify \r |
109e9a61 | 5 | the capsule runtime services are ready.\r |
74fea867 | 6 | \r |
13d40edd | 7 | Copyright (c) 2006 - 2008, Intel Corporation. <BR>\r |
74fea867 | 8 | All rights reserved. This program and the accompanying materials\r |
9 | are licensed and made available under the terms and conditions of the BSD License\r | |
10 | which accompanies this distribution. The full text of the license may be found at\r | |
11 | http://opensource.org/licenses/bsd-license.php\r | |
12 | \r | |
13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
15 | \r | |
13d40edd | 16 | **/\r |
74fea867 | 17 | \r |
109e9a61 LG |
18 | #include <Uefi.h>\r |
19 | \r | |
20 | #include <Protocol/Capsule.h>\r | |
21 | #include <Guid/CapsuleVendor.h>\r | |
22 | \r | |
23 | #include <Library/DebugLib.h>\r | |
24 | #include <Library/PcdLib.h>\r | |
25 | #include <Library/CapsuleLib.h>\r | |
26 | #include <Library/UefiDriverEntryPoint.h>\r | |
27 | #include <Library/UefiBootServicesTableLib.h>\r | |
28 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
29 | #include <Library/UefiRuntimeLib.h>\r | |
74fea867 | 30 | \r |
5d69642d LG |
31 | /**\r |
32 | Passes capsules to the firmware with both virtual and physical mapping. Depending on the intended\r | |
33 | consumption, the firmware may process the capsule immediately. If the payload should persist\r | |
34 | across a system reset, the reset value returned from EFI_QueryCapsuleCapabilities must\r | |
35 | be passed into ResetSystem() and will cause the capsule to be processed by the firmware as\r | |
36 | part of the reset process.\r | |
37 | \r | |
38 | @param CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules\r | |
39 | being passed into update capsule.\r | |
40 | @param CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in\r | |
41 | CaspuleHeaderArray.\r | |
42 | @param ScatterGatherList Physical pointer to a set of\r | |
43 | EFI_CAPSULE_BLOCK_DESCRIPTOR that describes the\r | |
44 | location in physical memory of a set of capsules.\r | |
45 | \r | |
46 | @retval EFI_SUCCESS Valid capsule was passed. If\r | |
47 | CAPSULE_FLAGS_PERSIT_ACROSS_RESET is not set, the\r | |
48 | capsule has been successfully processed by the firmware.\r | |
49 | @retval EFI_DEVICE_ERROR The capsule update was started, but failed due to a device error.\r | |
50 | @retval EFI_INVALID_PARAMETER CapsuleCount is Zero, or CapsuleImage is not valid.\r | |
51 | For across reset capsule image, ScatterGatherList is NULL.\r | |
52 | @retval EFI_UNSUPPORTED CapsuleImage is not recognized by the firmware.\r | |
53 | \r | |
54 | **/\r | |
74fea867 | 55 | EFI_STATUS\r |
56 | EFIAPI\r | |
57 | UpdateCapsule (\r | |
58 | IN EFI_CAPSULE_HEADER **CapsuleHeaderArray,\r | |
59 | IN UINTN CapsuleCount,\r | |
60 | IN EFI_PHYSICAL_ADDRESS ScatterGatherList OPTIONAL\r | |
61 | )\r | |
74fea867 | 62 | {\r |
74fea867 | 63 | UINTN ArrayNumber;\r |
74fea867 | 64 | EFI_STATUS Status;\r |
74fea867 | 65 | EFI_CAPSULE_HEADER *CapsuleHeader;\r |
409d47b4 | 66 | BOOLEAN NeedReset;\r |
5d69642d LG |
67 | \r |
68 | //\r | |
69 | // Capsule Count can't be less than one.\r | |
70 | //\r | |
74fea867 | 71 | if (CapsuleCount < 1) {\r |
72 | return EFI_INVALID_PARAMETER;\r | |
73 | }\r | |
409d47b4 LG |
74 | NeedReset = FALSE;\r |
75 | CapsuleHeader = NULL;\r | |
74fea867 | 76 | \r |
77 | for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {\r | |
d12f75fe LG |
78 | //\r |
79 | // A capsule which has the CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flag must have\r | |
80 | // CAPSULE_FLAGS_PERSIST_ACROSS_RESET set in its header as well.\r | |
81 | //\r | |
74fea867 | 82 | CapsuleHeader = CapsuleHeaderArray[ArrayNumber];\r |
83 | if ((CapsuleHeader->Flags & (CAPSULE_FLAGS_PERSIST_ACROSS_RESET | CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE)) == CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) {\r | |
84 | return EFI_INVALID_PARAMETER;\r | |
85 | }\r | |
d12f75fe | 86 | //\r |
6ee65722 LG |
87 | // Check Capsule image without populate flag by firmware support capsule function \r |
88 | //\r | |
89 | if (((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) == 0) && \r | |
90 | (SupportCapsuleImage (CapsuleHeader) != EFI_SUCCESS)) {\r | |
91 | return EFI_UNSUPPORTED;\r | |
92 | }\r | |
74fea867 | 93 | }\r |
94 | \r | |
d12f75fe | 95 | //\r |
409d47b4 LG |
96 | // Walk through all capsules, record whether there is a capsule \r |
97 | // needs reset. And then process capsules which has no reset flag directly.\r | |
5d69642d | 98 | //\r |
409d47b4 LG |
99 | for (ArrayNumber = 0; ArrayNumber < CapsuleCount ; ArrayNumber++) {\r |
100 | CapsuleHeader = CapsuleHeaderArray[ArrayNumber];\r | |
d12f75fe | 101 | //\r |
409d47b4 LG |
102 | // Here should be in the boot-time for non-reset capsule image\r |
103 | // Platform specific update for the non-reset capsule image.\r | |
d12f75fe | 104 | //\r |
409d47b4 LG |
105 | if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) == 0) {\r |
106 | if (EfiAtRuntime ()) { \r | |
107 | Status = EFI_UNSUPPORTED;\r | |
108 | } else {\r | |
109 | Status = ProcessCapsuleImage(CapsuleHeader);\r | |
110 | }\r | |
111 | if (EFI_ERROR(Status)) {\r | |
d12f75fe | 112 | return Status;\r |
74fea867 | 113 | }\r |
409d47b4 LG |
114 | } else {\r |
115 | NeedReset = TRUE;\r | |
74fea867 | 116 | }\r |
74fea867 | 117 | }\r |
409d47b4 LG |
118 | \r |
119 | //\r | |
120 | // After launching all capsules who has no reset flag, if no more capsules claims\r | |
121 | // for a system reset just return.\r | |
122 | //\r | |
123 | if (!NeedReset) {\r | |
124 | return EFI_SUCCESS;\r | |
125 | }\r | |
74fea867 | 126 | \r |
127 | //\r | |
409d47b4 LG |
128 | // ScatterGatherList is only referenced if the capsules are defined to persist across\r |
129 | // system reset. \r | |
74fea867 | 130 | //\r |
409d47b4 LG |
131 | if (ScatterGatherList == (EFI_PHYSICAL_ADDRESS) (UINTN) NULL) {\r |
132 | return EFI_INVALID_PARAMETER;\r | |
74fea867 | 133 | }\r |
134 | \r | |
135 | //\r | |
409d47b4 | 136 | // Check if the platform supports update capsule across a system reset\r |
74fea867 | 137 | //\r |
409d47b4 LG |
138 | if (!FeaturePcdGet(PcdSupportUpdateCapsuleReset)) {\r |
139 | return EFI_UNSUPPORTED;\r | |
74fea867 | 140 | }\r |
141 | \r | |
409d47b4 LG |
142 | //\r |
143 | // ScatterGatherList is only referenced if the capsules are defined to persist across\r | |
144 | // system reset. Set its value into NV storage to let pre-boot driver to pick it up \r | |
145 | // after coming through a system reset.\r | |
146 | //\r | |
147 | Status = gRT->SetVariable (\r | |
148 | EFI_CAPSULE_VARIABLE_NAME,\r | |
149 | &gEfiCapsuleVendorGuid,\r | |
150 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r | |
151 | sizeof (UINTN),\r | |
152 | (VOID *) &ScatterGatherList\r | |
153 | );\r | |
154 | \r | |
155 | return Status;\r | |
74fea867 | 156 | }\r |
157 | \r | |
5d69642d LG |
158 | /**\r |
159 | Returns if the capsule can be supported via UpdateCapsule().\r | |
160 | \r | |
161 | @param CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules\r | |
162 | being passed into update capsule.\r | |
163 | @param CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in\r | |
164 | CaspuleHeaderArray.\r | |
165 | @param MaxiumCapsuleSize On output the maximum size that UpdateCapsule() can\r | |
166 | support as an argument to UpdateCapsule() via\r | |
167 | CapsuleHeaderArray and ScatterGatherList.\r | |
168 | @param ResetType Returns the type of reset required for the capsule update.\r | |
74fea867 | 169 | \r |
5d69642d LG |
170 | @retval EFI_SUCCESS Valid answer returned.\r |
171 | @retval EFI_UNSUPPORTED The capsule image is not supported on this platform, and\r | |
172 | MaximumCapsuleSize and ResetType are undefined.\r | |
173 | @retval EFI_INVALID_PARAMETER MaximumCapsuleSize is NULL, or ResetTyep is NULL,\r | |
174 | Or CapsuleCount is Zero, or CapsuleImage is not valid.\r | |
74fea867 | 175 | \r |
5d69642d | 176 | **/\r |
74fea867 | 177 | EFI_STATUS\r |
178 | EFIAPI\r | |
179 | QueryCapsuleCapabilities (\r | |
180 | IN EFI_CAPSULE_HEADER **CapsuleHeaderArray,\r | |
181 | IN UINTN CapsuleCount,\r | |
182 | OUT UINT64 *MaxiumCapsuleSize,\r | |
183 | OUT EFI_RESET_TYPE *ResetType\r | |
184 | )\r | |
74fea867 | 185 | {\r |
186 | UINTN ArrayNumber;\r | |
187 | EFI_CAPSULE_HEADER *CapsuleHeader;\r | |
188 | \r | |
5d69642d LG |
189 | //\r |
190 | // Capsule Count can't be less than one.\r | |
191 | //\r | |
74fea867 | 192 | if (CapsuleCount < 1) {\r |
193 | return EFI_INVALID_PARAMETER;\r | |
194 | }\r | |
5d69642d LG |
195 | \r |
196 | //\r | |
197 | // Check whether input paramter is valid\r | |
198 | //\r | |
74fea867 | 199 | if ((MaxiumCapsuleSize == NULL) ||(ResetType == NULL)) {\r |
200 | return EFI_INVALID_PARAMETER;\r | |
201 | }\r | |
202 | \r | |
203 | CapsuleHeader = NULL;\r | |
204 | \r | |
205 | for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {\r | |
206 | CapsuleHeader = CapsuleHeaderArray[ArrayNumber];\r | |
d12f75fe LG |
207 | //\r |
208 | // A capsule which has the CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flag must have\r | |
209 | // CAPSULE_FLAGS_PERSIST_ACROSS_RESET set in its header as well.\r | |
210 | //\r | |
74fea867 | 211 | if ((CapsuleHeader->Flags & (CAPSULE_FLAGS_PERSIST_ACROSS_RESET | CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE)) == CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) {\r |
212 | return EFI_INVALID_PARAMETER;\r | |
213 | }\r | |
d12f75fe | 214 | //\r |
5d69642d | 215 | // Check Capsule image without populate flag is supported by firmware\r |
6ee65722 LG |
216 | //\r |
217 | if (((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) == 0) && \r | |
218 | (SupportCapsuleImage (CapsuleHeader) != EFI_SUCCESS)) {\r | |
219 | return EFI_UNSUPPORTED;\r | |
220 | }\r | |
74fea867 | 221 | }\r |
222 | \r | |
223 | //\r | |
5d69642d | 224 | // Assume that capsules have the same flags on reseting or not.\r |
74fea867 | 225 | //\r |
226 | CapsuleHeader = CapsuleHeaderArray[0];\r | |
227 | if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {\r | |
228 | //\r | |
229 | //Check if the platform supports update capsule across a system reset\r | |
230 | //\r | |
109e9a61 | 231 | if (!FeaturePcdGet(PcdSupportUpdateCapsuleReset)) {\r |
74fea867 | 232 | return EFI_UNSUPPORTED;\r |
233 | }\r | |
5c526736 | 234 | *ResetType = EfiResetWarm; \r |
74fea867 | 235 | } else {\r |
5d69642d LG |
236 | //\r |
237 | // For non-reset capsule image.\r | |
238 | //\r | |
74fea867 | 239 | *ResetType = EfiResetCold;\r |
5c526736 LG |
240 | }\r |
241 | \r | |
242 | //\r | |
243 | // The support max capsule image size\r | |
244 | //\r | |
245 | if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) != 0) {\r | |
97b2c9b5 | 246 | *MaxiumCapsuleSize = PcdGet32(PcdMaxSizePopulateCapsule);\r |
5c526736 | 247 | } else {\r |
97b2c9b5 | 248 | *MaxiumCapsuleSize = PcdGet32(PcdMaxSizeNonPopulateCapsule);\r |
74fea867 | 249 | }\r |
5c526736 | 250 | \r |
74fea867 | 251 | return EFI_SUCCESS;\r |
252 | }\r | |
253 | \r | |
254 | \r | |
5d69642d LG |
255 | /**\r |
256 | \r | |
109e9a61 | 257 | This code installs UEFI capsule runtime service.\r |
5d69642d LG |
258 | \r |
259 | @param ImageHandle The firmware allocated handle for the EFI image. \r | |
260 | @param SystemTable A pointer to the EFI System Table.\r | |
261 | \r | |
262 | @retval EFI_SUCCESS UEFI Capsule Runtime Services are installed successfully. \r | |
263 | \r | |
264 | **/\r | |
74fea867 | 265 | EFI_STATUS\r |
266 | EFIAPI\r | |
267 | CapsuleServiceInitialize (\r | |
268 | IN EFI_HANDLE ImageHandle,\r | |
269 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
270 | )\r | |
74fea867 | 271 | {\r |
272 | EFI_STATUS Status;\r | |
273 | EFI_HANDLE NewHandle;\r | |
5d69642d LG |
274 | \r |
275 | //\r | |
276 | // Install capsule runtime services into UEFI runtime service tables.\r | |
277 | //\r | |
109e9a61 LG |
278 | gRT->UpdateCapsule = UpdateCapsule;\r |
279 | gRT->QueryCapsuleCapabilities = QueryCapsuleCapabilities;\r | |
74fea867 | 280 | \r |
281 | //\r | |
5d69642d LG |
282 | // Install the Capsule Architectural Protocol on a new handle\r |
283 | // to signify the capsule runtime services are ready.\r | |
74fea867 | 284 | //\r |
285 | NewHandle = NULL;\r | |
286 | \r | |
287 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
288 | &NewHandle,\r | |
289 | &gEfiCapsuleArchProtocolGuid,\r | |
290 | NULL,\r | |
291 | NULL\r | |
292 | );\r | |
293 | ASSERT_EFI_ERROR (Status);\r | |
294 | \r | |
295 | return EFI_SUCCESS;\r | |
296 | }\r |