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3f5ed3fa JY |
1 | /** @file\r |
2 | \r | |
e8097a74 | 3 | Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>\r |
3f5ed3fa JY |
4 | \r |
5 | This program and the accompanying materials are licensed and made available under\r | |
6 | the terms and conditions of the BSD License which accompanies this distribution.\r | |
7 | The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <Uefi.h>\r | |
16 | #include <PiPei.h>\r | |
17 | #include <Library/BaseLib.h>\r | |
18 | #include <Library/BaseMemoryLib.h>\r | |
19 | #include <Library/MemoryAllocationLib.h>\r | |
20 | #include <Library/IoLib.h>\r | |
21 | #include <Library/DebugLib.h>\r | |
22 | #include <Library/PeiServicesLib.h>\r | |
23 | #include <Library/HobLib.h>\r | |
24 | #include <IndustryStandard/Vtd.h>\r | |
25 | #include <Ppi/IoMmu.h>\r | |
4084ccfa | 26 | #include <Ppi/VtdInfo.h>\r |
a1e7cd0b | 27 | #include <Ppi/MemoryDiscovered.h>\r |
fc8be1ad | 28 | #include <Ppi/EndOfPeiPhase.h>\r |
3f5ed3fa JY |
29 | \r |
30 | #include "IntelVTdPmrPei.h"\r | |
31 | \r | |
32 | #define TOTAL_DMA_BUFFER_SIZE SIZE_4MB\r | |
fc8be1ad | 33 | #define TOTAL_DMA_BUFFER_SIZE_S3 SIZE_1MB\r |
3f5ed3fa | 34 | \r |
a1e7cd0b JY |
35 | EFI_GUID mVTdInfoGuid = {\r |
36 | 0x222f5e30, 0x5cd, 0x49c6, { 0x8a, 0xc, 0x36, 0xd6, 0x58, 0x41, 0xe0, 0x82 }\r | |
37 | };\r | |
38 | \r | |
39 | EFI_GUID mDmaBufferInfoGuid = {\r | |
40 | 0x7b624ec7, 0xfb67, 0x4f9c, { 0xb6, 0xb0, 0x4d, 0xfa, 0x9c, 0x88, 0x20, 0x39 }\r | |
41 | };\r | |
42 | \r | |
43 | typedef struct {\r | |
44 | UINTN DmaBufferBase;\r | |
45 | UINTN DmaBufferSize;\r | |
46 | UINTN DmaBufferCurrentTop;\r | |
47 | UINTN DmaBufferCurrentBottom;\r | |
48 | } DMA_BUFFER_INFO;\r | |
3f5ed3fa JY |
49 | \r |
50 | #define MAP_INFO_SIGNATURE SIGNATURE_32 ('D', 'M', 'A', 'P')\r | |
51 | typedef struct {\r | |
52 | UINT32 Signature;\r | |
53 | EDKII_IOMMU_OPERATION Operation;\r | |
54 | UINTN NumberOfBytes;\r | |
55 | EFI_PHYSICAL_ADDRESS HostAddress;\r | |
56 | EFI_PHYSICAL_ADDRESS DeviceAddress;\r | |
57 | } MAP_INFO;\r | |
58 | \r | |
59 | /**\r | |
60 | \r | |
61 | PEI Memory Layout:\r | |
62 | \r | |
e8097a74 | 63 | +------------------+ <=============== PHMR.Limit (+ alignment) (Top of memory)\r |
8e9da4ba JY |
64 | | Mem Resource |\r |
65 | | |\r | |
66 | \r | |
3f5ed3fa JY |
67 | +------------------+ <------- EfiMemoryTop\r |
68 | | PEI allocated |\r | |
8e9da4ba | 69 | =========== +==================+ <=============== PHMR.Base\r |
3f5ed3fa JY |
70 | ^ | Commom Buf |\r |
71 | | | -------------- |\r | |
72 | DMA Buffer | * DMA FREE * |\r | |
73 | | | -------------- |\r | |
74 | V | Read/Write Buf |\r | |
e8097a74 | 75 | =========== +==================+ <=============== PLMR.Limit (+ alignment)\r |
3f5ed3fa JY |
76 | | PEI allocated |\r |
77 | | -------------- | <------- EfiFreeMemoryTop\r | |
78 | | * PEI FREE * |\r | |
79 | | -------------- | <------- EfiFreeMemoryBottom\r | |
80 | | hob |\r | |
81 | | -------------- |\r | |
82 | | Stack |\r | |
83 | +------------------+ <------- EfiMemoryBottom / Stack Bottom\r | |
84 | \r | |
85 | +------------------+\r | |
86 | | Mem Alloc Hob |\r | |
87 | +------------------+\r | |
88 | \r | |
8e9da4ba JY |
89 | | |\r |
90 | | Mem Resource |\r | |
91 | +------------------+ <=============== PLMR.Base (0)\r | |
3f5ed3fa JY |
92 | **/\r |
93 | \r | |
3f5ed3fa JY |
94 | /**\r |
95 | Set IOMMU attribute for a system memory.\r | |
96 | \r | |
97 | If the IOMMU PPI exists, the system memory cannot be used\r | |
98 | for DMA by default.\r | |
99 | \r | |
100 | When a device requests a DMA access for a system memory,\r | |
101 | the device driver need use SetAttribute() to update the IOMMU\r | |
102 | attribute to request DMA access (read and/or write).\r | |
103 | \r | |
104 | @param[in] This The PPI instance pointer.\r | |
105 | @param[in] Mapping The mapping value returned from Map().\r | |
106 | @param[in] IoMmuAccess The IOMMU access.\r | |
107 | \r | |
108 | @retval EFI_SUCCESS The IoMmuAccess is set for the memory range specified by DeviceAddress and Length.\r | |
109 | @retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by Map().\r | |
110 | @retval EFI_INVALID_PARAMETER IoMmuAccess specified an illegal combination of access.\r | |
111 | @retval EFI_UNSUPPORTED The bit mask of IoMmuAccess is not supported by the IOMMU.\r | |
112 | @retval EFI_UNSUPPORTED The IOMMU does not support the memory range specified by Mapping.\r | |
113 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to modify the IOMMU access.\r | |
114 | @retval EFI_DEVICE_ERROR The IOMMU device reported an error while attempting the operation.\r | |
115 | \r | |
116 | **/\r | |
117 | EFI_STATUS\r | |
118 | EFIAPI\r | |
119 | PeiIoMmuSetAttribute (\r | |
120 | IN EDKII_IOMMU_PPI *This,\r | |
121 | IN VOID *Mapping,\r | |
122 | IN UINT64 IoMmuAccess\r | |
123 | )\r | |
124 | {\r | |
125 | return EFI_SUCCESS;\r | |
126 | }\r | |
127 | \r | |
128 | /**\r | |
129 | Provides the controller-specific addresses required to access system memory from a\r | |
130 | DMA bus master.\r | |
131 | \r | |
132 | @param This The PPI instance pointer.\r | |
133 | @param Operation Indicates if the bus master is going to read or write to system memory.\r | |
134 | @param HostAddress The system memory address to map to the PCI controller.\r | |
135 | @param NumberOfBytes On input the number of bytes to map. On output the number of bytes\r | |
136 | that were mapped.\r | |
137 | @param DeviceAddress The resulting map address for the bus master PCI controller to use to\r | |
138 | access the hosts HostAddress.\r | |
139 | @param Mapping A resulting value to pass to Unmap().\r | |
140 | \r | |
141 | @retval EFI_SUCCESS The range was mapped for the returned NumberOfBytes.\r | |
142 | @retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common buffer.\r | |
143 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
144 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
145 | @retval EFI_DEVICE_ERROR The system hardware could not map the requested address.\r | |
146 | \r | |
147 | **/\r | |
148 | EFI_STATUS\r | |
149 | EFIAPI\r | |
150 | PeiIoMmuMap (\r | |
151 | IN EDKII_IOMMU_PPI *This,\r | |
152 | IN EDKII_IOMMU_OPERATION Operation,\r | |
153 | IN VOID *HostAddress,\r | |
154 | IN OUT UINTN *NumberOfBytes,\r | |
155 | OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,\r | |
156 | OUT VOID **Mapping\r | |
157 | )\r | |
158 | {\r | |
a1e7cd0b JY |
159 | MAP_INFO *MapInfo;\r |
160 | UINTN Length;\r | |
161 | VOID *Hob;\r | |
162 | DMA_BUFFER_INFO *DmaBufferInfo;\r | |
163 | \r | |
164 | Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);\r | |
165 | DmaBufferInfo = GET_GUID_HOB_DATA(Hob);\r | |
3f5ed3fa JY |
166 | \r |
167 | if (Operation == EdkiiIoMmuOperationBusMasterCommonBuffer ||\r | |
168 | Operation == EdkiiIoMmuOperationBusMasterCommonBuffer64) {\r | |
169 | *DeviceAddress = (UINTN)HostAddress;\r | |
170 | *Mapping = 0;\r | |
171 | return EFI_SUCCESS;\r | |
172 | }\r | |
173 | \r | |
174 | DEBUG ((DEBUG_VERBOSE, "PeiIoMmuMap - HostAddress - 0x%x, NumberOfBytes - %x\n", HostAddress, *NumberOfBytes));\r | |
a1e7cd0b JY |
175 | DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentTop - %x\n", DmaBufferInfo->DmaBufferCurrentTop));\r |
176 | DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentBottom - %x\n", DmaBufferInfo->DmaBufferCurrentBottom));\r | |
3f5ed3fa JY |
177 | \r |
178 | Length = *NumberOfBytes + sizeof(MAP_INFO);\r | |
a1e7cd0b | 179 | if (Length > DmaBufferInfo->DmaBufferCurrentTop - DmaBufferInfo->DmaBufferCurrentBottom) {\r |
3f5ed3fa JY |
180 | DEBUG ((DEBUG_ERROR, "PeiIoMmuMap - OUT_OF_RESOURCE\n"));\r |
181 | ASSERT (FALSE);\r | |
182 | return EFI_OUT_OF_RESOURCES;\r | |
183 | }\r | |
184 | \r | |
a1e7cd0b JY |
185 | *DeviceAddress = DmaBufferInfo->DmaBufferCurrentBottom;\r |
186 | DmaBufferInfo->DmaBufferCurrentBottom += Length;\r | |
3f5ed3fa JY |
187 | \r |
188 | MapInfo = (VOID *)(UINTN)(*DeviceAddress + *NumberOfBytes);\r | |
189 | MapInfo->Signature = MAP_INFO_SIGNATURE;\r | |
190 | MapInfo->Operation = Operation;\r | |
191 | MapInfo->NumberOfBytes = *NumberOfBytes;\r | |
192 | MapInfo->HostAddress = (UINTN)HostAddress;\r | |
193 | MapInfo->DeviceAddress = *DeviceAddress;\r | |
194 | *Mapping = MapInfo;\r | |
195 | DEBUG ((DEBUG_VERBOSE, " Op(%x):DeviceAddress - %x, Mapping - %x\n", Operation, (UINTN)*DeviceAddress, MapInfo));\r | |
196 | \r | |
197 | //\r | |
198 | // If this is a read operation from the Bus Master's point of view,\r | |
199 | // then copy the contents of the real buffer into the mapped buffer\r | |
200 | // so the Bus Master can read the contents of the real buffer.\r | |
201 | //\r | |
202 | if (Operation == EdkiiIoMmuOperationBusMasterRead ||\r | |
203 | Operation == EdkiiIoMmuOperationBusMasterRead64) {\r | |
204 | CopyMem (\r | |
205 | (VOID *) (UINTN) MapInfo->DeviceAddress,\r | |
206 | (VOID *) (UINTN) MapInfo->HostAddress,\r | |
207 | MapInfo->NumberOfBytes\r | |
208 | );\r | |
209 | }\r | |
210 | \r | |
211 | return EFI_SUCCESS;\r | |
212 | }\r | |
213 | \r | |
214 | /**\r | |
215 | Completes the Map() operation and releases any corresponding resources.\r | |
216 | \r | |
217 | @param This The PPI instance pointer.\r | |
218 | @param Mapping The mapping value returned from Map().\r | |
219 | \r | |
220 | @retval EFI_SUCCESS The range was unmapped.\r | |
221 | @retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by Map().\r | |
222 | @retval EFI_DEVICE_ERROR The data was not committed to the target system memory.\r | |
223 | **/\r | |
224 | EFI_STATUS\r | |
225 | EFIAPI\r | |
226 | PeiIoMmuUnmap (\r | |
227 | IN EDKII_IOMMU_PPI *This,\r | |
228 | IN VOID *Mapping\r | |
229 | )\r | |
230 | {\r | |
a1e7cd0b JY |
231 | MAP_INFO *MapInfo;\r |
232 | UINTN Length;\r | |
233 | VOID *Hob;\r | |
234 | DMA_BUFFER_INFO *DmaBufferInfo;\r | |
235 | \r | |
236 | Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);\r | |
237 | DmaBufferInfo = GET_GUID_HOB_DATA(Hob);\r | |
3f5ed3fa JY |
238 | \r |
239 | if (Mapping == NULL) {\r | |
240 | return EFI_SUCCESS;\r | |
241 | }\r | |
242 | \r | |
243 | DEBUG ((DEBUG_VERBOSE, "PeiIoMmuUnmap - Mapping - %x\n", Mapping));\r | |
a1e7cd0b JY |
244 | DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentTop - %x\n", DmaBufferInfo->DmaBufferCurrentTop));\r |
245 | DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentBottom - %x\n", DmaBufferInfo->DmaBufferCurrentBottom));\r | |
3f5ed3fa JY |
246 | \r |
247 | MapInfo = Mapping;\r | |
248 | ASSERT (MapInfo->Signature == MAP_INFO_SIGNATURE);\r | |
249 | DEBUG ((DEBUG_VERBOSE, " Op(%x):DeviceAddress - %x, NumberOfBytes - %x\n", MapInfo->Operation, (UINTN)MapInfo->DeviceAddress, MapInfo->NumberOfBytes));\r | |
250 | \r | |
251 | //\r | |
252 | // If this is a write operation from the Bus Master's point of view,\r | |
253 | // then copy the contents of the mapped buffer into the real buffer\r | |
254 | // so the processor can read the contents of the real buffer.\r | |
255 | //\r | |
256 | if (MapInfo->Operation == EdkiiIoMmuOperationBusMasterWrite ||\r | |
257 | MapInfo->Operation == EdkiiIoMmuOperationBusMasterWrite64) {\r | |
258 | CopyMem (\r | |
259 | (VOID *) (UINTN) MapInfo->HostAddress,\r | |
260 | (VOID *) (UINTN) MapInfo->DeviceAddress,\r | |
261 | MapInfo->NumberOfBytes\r | |
262 | );\r | |
263 | }\r | |
264 | \r | |
265 | Length = MapInfo->NumberOfBytes + sizeof(MAP_INFO);\r | |
a1e7cd0b JY |
266 | if (DmaBufferInfo->DmaBufferCurrentBottom == MapInfo->DeviceAddress + Length) {\r |
267 | DmaBufferInfo->DmaBufferCurrentBottom -= Length;\r | |
3f5ed3fa JY |
268 | }\r |
269 | \r | |
270 | return EFI_SUCCESS;\r | |
271 | }\r | |
272 | \r | |
273 | /**\r | |
274 | Allocates pages that are suitable for an OperationBusMasterCommonBuffer or\r | |
275 | OperationBusMasterCommonBuffer64 mapping.\r | |
276 | \r | |
277 | @param This The PPI instance pointer.\r | |
278 | @param MemoryType The type of memory to allocate, EfiBootServicesData or\r | |
279 | EfiRuntimeServicesData.\r | |
280 | @param Pages The number of pages to allocate.\r | |
281 | @param HostAddress A pointer to store the base system memory address of the\r | |
282 | allocated range.\r | |
283 | @param Attributes The requested bit mask of attributes for the allocated range.\r | |
284 | \r | |
285 | @retval EFI_SUCCESS The requested memory pages were allocated.\r | |
286 | @retval EFI_UNSUPPORTED Attributes is unsupported. The only legal attribute bits are\r | |
34e18d17 | 287 | MEMORY_WRITE_COMBINE, MEMORY_CACHED and DUAL_ADDRESS_CYCLE.\r |
3f5ed3fa JY |
288 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r |
289 | @retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.\r | |
290 | \r | |
291 | **/\r | |
292 | EFI_STATUS\r | |
293 | EFIAPI\r | |
294 | PeiIoMmuAllocateBuffer (\r | |
295 | IN EDKII_IOMMU_PPI *This,\r | |
296 | IN EFI_MEMORY_TYPE MemoryType,\r | |
297 | IN UINTN Pages,\r | |
298 | IN OUT VOID **HostAddress,\r | |
299 | IN UINT64 Attributes\r | |
300 | )\r | |
301 | {\r | |
a1e7cd0b JY |
302 | UINTN Length;\r |
303 | VOID *Hob;\r | |
304 | DMA_BUFFER_INFO *DmaBufferInfo;\r | |
305 | \r | |
306 | Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);\r | |
307 | DmaBufferInfo = GET_GUID_HOB_DATA(Hob);\r | |
3f5ed3fa JY |
308 | \r |
309 | DEBUG ((DEBUG_VERBOSE, "PeiIoMmuAllocateBuffer - page - %x\n", Pages));\r | |
a1e7cd0b JY |
310 | DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentTop - %x\n", DmaBufferInfo->DmaBufferCurrentTop));\r |
311 | DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentBottom - %x\n", DmaBufferInfo->DmaBufferCurrentBottom));\r | |
3f5ed3fa JY |
312 | \r |
313 | Length = EFI_PAGES_TO_SIZE(Pages);\r | |
a1e7cd0b | 314 | if (Length > DmaBufferInfo->DmaBufferCurrentTop - DmaBufferInfo->DmaBufferCurrentBottom) {\r |
3f5ed3fa JY |
315 | DEBUG ((DEBUG_ERROR, "PeiIoMmuAllocateBuffer - OUT_OF_RESOURCE\n"));\r |
316 | ASSERT (FALSE);\r | |
317 | return EFI_OUT_OF_RESOURCES;\r | |
318 | }\r | |
a1e7cd0b JY |
319 | *HostAddress = (VOID *)(UINTN)(DmaBufferInfo->DmaBufferCurrentTop - Length);\r |
320 | DmaBufferInfo->DmaBufferCurrentTop -= Length;\r | |
3f5ed3fa JY |
321 | \r |
322 | DEBUG ((DEBUG_VERBOSE, "PeiIoMmuAllocateBuffer - allocate - %x\n", *HostAddress));\r | |
323 | return EFI_SUCCESS;\r | |
324 | }\r | |
325 | \r | |
326 | /**\r | |
327 | Frees memory that was allocated with AllocateBuffer().\r | |
328 | \r | |
329 | @param This The PPI instance pointer.\r | |
330 | @param Pages The number of pages to free.\r | |
331 | @param HostAddress The base system memory address of the allocated range.\r | |
332 | \r | |
333 | @retval EFI_SUCCESS The requested memory pages were freed.\r | |
334 | @retval EFI_INVALID_PARAMETER The memory range specified by HostAddress and Pages\r | |
335 | was not allocated with AllocateBuffer().\r | |
336 | \r | |
337 | **/\r | |
338 | EFI_STATUS\r | |
339 | EFIAPI\r | |
340 | PeiIoMmuFreeBuffer (\r | |
341 | IN EDKII_IOMMU_PPI *This,\r | |
342 | IN UINTN Pages,\r | |
343 | IN VOID *HostAddress\r | |
344 | )\r | |
345 | {\r | |
a1e7cd0b JY |
346 | UINTN Length;\r |
347 | VOID *Hob;\r | |
348 | DMA_BUFFER_INFO *DmaBufferInfo;\r | |
349 | \r | |
350 | Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);\r | |
351 | DmaBufferInfo = GET_GUID_HOB_DATA(Hob);\r | |
3f5ed3fa JY |
352 | \r |
353 | DEBUG ((DEBUG_VERBOSE, "PeiIoMmuFreeBuffer - page - %x, HostAddr - %x\n", Pages, HostAddress));\r | |
a1e7cd0b JY |
354 | DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentTop - %x\n", DmaBufferInfo->DmaBufferCurrentTop));\r |
355 | DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentBottom - %x\n", DmaBufferInfo->DmaBufferCurrentBottom));\r | |
3f5ed3fa JY |
356 | \r |
357 | Length = EFI_PAGES_TO_SIZE(Pages);\r | |
a1e7cd0b JY |
358 | if ((UINTN)HostAddress == DmaBufferInfo->DmaBufferCurrentTop) {\r |
359 | DmaBufferInfo->DmaBufferCurrentTop += Length;\r | |
3f5ed3fa JY |
360 | }\r |
361 | \r | |
362 | return EFI_SUCCESS;\r | |
363 | }\r | |
364 | \r | |
365 | EDKII_IOMMU_PPI mIoMmuPpi = {\r | |
366 | EDKII_IOMMU_PPI_REVISION,\r | |
367 | PeiIoMmuSetAttribute,\r | |
368 | PeiIoMmuMap,\r | |
369 | PeiIoMmuUnmap,\r | |
370 | PeiIoMmuAllocateBuffer,\r | |
371 | PeiIoMmuFreeBuffer,\r | |
372 | };\r | |
373 | \r | |
374 | CONST EFI_PEI_PPI_DESCRIPTOR mIoMmuPpiList = {\r | |
375 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
376 | &gEdkiiIoMmuPpiGuid,\r | |
377 | (VOID *) &mIoMmuPpi\r | |
378 | };\r | |
379 | \r | |
380 | #define MEMORY_ATTRIBUTE_MASK (EFI_RESOURCE_ATTRIBUTE_PRESENT | \\r | |
381 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \\r | |
382 | EFI_RESOURCE_ATTRIBUTE_TESTED | \\r | |
383 | EFI_RESOURCE_ATTRIBUTE_16_BIT_IO | \\r | |
384 | EFI_RESOURCE_ATTRIBUTE_32_BIT_IO | \\r | |
385 | EFI_RESOURCE_ATTRIBUTE_64_BIT_IO \\r | |
386 | )\r | |
387 | \r | |
388 | #define TESTED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_TESTED)\r | |
389 | \r | |
390 | #define INITIALIZED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED)\r | |
391 | \r | |
392 | #define PRESENT_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT)\r | |
393 | \r | |
394 | GLOBAL_REMOVE_IF_UNREFERENCED CHAR8 *mResourceTypeShortName[] = {\r | |
395 | "Mem",\r | |
396 | "MMIO",\r | |
397 | "I/O",\r | |
398 | "FD",\r | |
399 | "MM Port I/O",\r | |
400 | "Reserved Mem",\r | |
401 | "Reserved I/O",\r | |
402 | };\r | |
403 | \r | |
404 | /**\r | |
405 | Return the short name of resource type.\r | |
406 | \r | |
407 | @param Type resource type.\r | |
408 | \r | |
409 | @return the short name of resource type.\r | |
410 | **/\r | |
411 | CHAR8 *\r | |
412 | ShortNameOfResourceType (\r | |
413 | IN UINT32 Type\r | |
414 | )\r | |
415 | {\r | |
416 | if (Type < sizeof(mResourceTypeShortName) / sizeof(mResourceTypeShortName[0])) {\r | |
417 | return mResourceTypeShortName[Type];\r | |
418 | } else {\r | |
419 | return "Unknown";\r | |
420 | }\r | |
421 | }\r | |
422 | \r | |
423 | /**\r | |
424 | Dump resource hob.\r | |
425 | \r | |
426 | @param HobList the HOB list.\r | |
427 | **/\r | |
428 | VOID\r | |
429 | DumpResourceHob (\r | |
430 | IN VOID *HobList\r | |
431 | )\r | |
432 | {\r | |
433 | EFI_PEI_HOB_POINTERS Hob;\r | |
434 | EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;\r | |
435 | \r | |
436 | DEBUG ((DEBUG_VERBOSE, "Resource Descriptor HOBs\n"));\r | |
437 | for (Hob.Raw = HobList; !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob)) {\r | |
438 | if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r | |
439 | ResourceHob = Hob.ResourceDescriptor;\r | |
440 | DEBUG ((DEBUG_VERBOSE,\r | |
441 | " BA=%016lx L=%016lx Attr=%08x ",\r | |
442 | ResourceHob->PhysicalStart,\r | |
443 | ResourceHob->ResourceLength,\r | |
444 | ResourceHob->ResourceAttribute\r | |
445 | ));\r | |
446 | DEBUG ((DEBUG_VERBOSE, ShortNameOfResourceType(ResourceHob->ResourceType)));\r | |
447 | switch (ResourceHob->ResourceType) {\r | |
448 | case EFI_RESOURCE_SYSTEM_MEMORY:\r | |
449 | if ((ResourceHob->ResourceAttribute & EFI_RESOURCE_ATTRIBUTE_PERSISTENT) != 0) {\r | |
450 | DEBUG ((DEBUG_VERBOSE, " (Persistent)"));\r | |
451 | } else if ((ResourceHob->ResourceAttribute & EFI_RESOURCE_ATTRIBUTE_MORE_RELIABLE) != 0) {\r | |
452 | DEBUG ((DEBUG_VERBOSE, " (MoreReliable)"));\r | |
453 | } else if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES) {\r | |
454 | DEBUG ((DEBUG_VERBOSE, " (Tested)"));\r | |
455 | } else if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == INITIALIZED_MEMORY_ATTRIBUTES) {\r | |
456 | DEBUG ((DEBUG_VERBOSE, " (Init)"));\r | |
457 | } else if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == PRESENT_MEMORY_ATTRIBUTES) {\r | |
458 | DEBUG ((DEBUG_VERBOSE, " (Present)"));\r | |
459 | } else {\r | |
460 | DEBUG ((DEBUG_VERBOSE, " (Unknown)"));\r | |
461 | }\r | |
462 | break;\r | |
463 | default:\r | |
464 | break;\r | |
465 | }\r | |
466 | DEBUG ((DEBUG_VERBOSE, "\n"));\r | |
467 | }\r | |
468 | }\r | |
469 | }\r | |
470 | \r | |
471 | /**\r | |
472 | Dump PHIT hob.\r | |
473 | \r | |
474 | @param HobList the HOB list.\r | |
475 | **/\r | |
476 | VOID\r | |
477 | DumpPhitHob (\r | |
478 | IN VOID *HobList\r | |
479 | )\r | |
480 | {\r | |
481 | EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;\r | |
482 | \r | |
483 | PhitHob = HobList;\r | |
484 | ASSERT(GET_HOB_TYPE(HobList) == EFI_HOB_TYPE_HANDOFF);\r | |
485 | DEBUG ((DEBUG_VERBOSE, "PHIT HOB\n"));\r | |
486 | DEBUG ((DEBUG_VERBOSE, " PhitHob - 0x%x\n", PhitHob));\r | |
487 | DEBUG ((DEBUG_VERBOSE, " BootMode - 0x%x\n", PhitHob->BootMode));\r | |
488 | DEBUG ((DEBUG_VERBOSE, " EfiMemoryTop - 0x%016lx\n", PhitHob->EfiMemoryTop));\r | |
489 | DEBUG ((DEBUG_VERBOSE, " EfiMemoryBottom - 0x%016lx\n", PhitHob->EfiMemoryBottom));\r | |
490 | DEBUG ((DEBUG_VERBOSE, " EfiFreeMemoryTop - 0x%016lx\n", PhitHob->EfiFreeMemoryTop));\r | |
491 | DEBUG ((DEBUG_VERBOSE, " EfiFreeMemoryBottom - 0x%016lx\n", PhitHob->EfiFreeMemoryBottom));\r | |
492 | DEBUG ((DEBUG_VERBOSE, " EfiEndOfHobList - 0x%lx\n", PhitHob->EfiEndOfHobList));\r | |
493 | }\r | |
494 | \r | |
495 | /**\r | |
496 | Get the highest memory.\r | |
497 | \r | |
3f5ed3fa JY |
498 | @return the highest memory.\r |
499 | **/\r | |
500 | UINT64\r | |
501 | GetTopMemory (\r | |
8e9da4ba | 502 | VOID\r |
3f5ed3fa JY |
503 | )\r |
504 | {\r | |
8e9da4ba | 505 | VOID *HobList;\r |
3f5ed3fa JY |
506 | EFI_PEI_HOB_POINTERS Hob;\r |
507 | EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;\r | |
508 | UINT64 TopMemory;\r | |
509 | UINT64 ResourceTop;\r | |
510 | \r | |
8e9da4ba JY |
511 | HobList = GetHobList ();\r |
512 | \r | |
3f5ed3fa JY |
513 | TopMemory = 0;\r |
514 | for (Hob.Raw = HobList; !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob)) {\r | |
515 | if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r | |
516 | ResourceHob = Hob.ResourceDescriptor;\r | |
517 | switch (ResourceHob->ResourceType) {\r | |
518 | case EFI_RESOURCE_SYSTEM_MEMORY:\r | |
519 | ResourceTop = ResourceHob->PhysicalStart + ResourceHob->ResourceLength;\r | |
520 | if (TopMemory < ResourceTop) {\r | |
521 | TopMemory = ResourceTop;\r | |
522 | }\r | |
523 | break;\r | |
524 | default:\r | |
525 | break;\r | |
526 | }\r | |
527 | DEBUG ((DEBUG_VERBOSE, "\n"));\r | |
528 | }\r | |
529 | }\r | |
530 | return TopMemory;\r | |
531 | }\r | |
532 | \r | |
533 | /**\r | |
534 | Initialize DMA protection.\r | |
535 | \r | |
a1e7cd0b | 536 | @param VTdInfo The VTd engine context information.\r |
3f5ed3fa JY |
537 | @param DmaBufferSize the DMA buffer size\r |
538 | @param DmaBufferBase the DMA buffer base\r | |
539 | \r | |
540 | @retval EFI_SUCCESS the DMA protection is initialized.\r | |
541 | @retval EFI_OUT_OF_RESOURCES no enough resource to initialize DMA protection.\r | |
542 | **/\r | |
543 | EFI_STATUS\r | |
544 | InitDmaProtection (\r | |
a1e7cd0b JY |
545 | IN VTD_INFO *VTdInfo,\r |
546 | IN UINTN DmaBufferSize,\r | |
547 | OUT UINTN *DmaBufferBase\r | |
3f5ed3fa JY |
548 | )\r |
549 | {\r | |
550 | EFI_STATUS Status;\r | |
551 | VOID *HobList;\r | |
552 | EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;\r | |
553 | UINT32 LowMemoryAlignment;\r | |
554 | UINT64 HighMemoryAlignment;\r | |
555 | UINTN MemoryAlignment;\r | |
556 | UINTN LowBottom;\r | |
557 | UINTN LowTop;\r | |
558 | UINTN HighBottom;\r | |
559 | UINT64 HighTop;\r | |
560 | \r | |
561 | HobList = GetHobList ();\r | |
562 | DumpPhitHob (HobList);\r | |
563 | DumpResourceHob (HobList);\r | |
564 | \r | |
565 | PhitHob = HobList;\r | |
566 | \r | |
567 | ASSERT (PhitHob->EfiMemoryBottom < PhitHob->EfiMemoryTop);\r | |
568 | \r | |
a1e7cd0b JY |
569 | LowMemoryAlignment = GetLowMemoryAlignment (VTdInfo, VTdInfo->EngineMask);\r |
570 | HighMemoryAlignment = GetHighMemoryAlignment (VTdInfo, VTdInfo->EngineMask);\r | |
3f5ed3fa JY |
571 | if (LowMemoryAlignment < HighMemoryAlignment) {\r |
572 | MemoryAlignment = (UINTN)HighMemoryAlignment;\r | |
573 | } else {\r | |
574 | MemoryAlignment = LowMemoryAlignment;\r | |
575 | }\r | |
576 | ASSERT (DmaBufferSize == ALIGN_VALUE(DmaBufferSize, MemoryAlignment));\r | |
577 | *DmaBufferBase = (UINTN)AllocateAlignedPages (EFI_SIZE_TO_PAGES(DmaBufferSize), MemoryAlignment);\r | |
fc8be1ad | 578 | ASSERT (*DmaBufferBase != 0);\r |
3f5ed3fa JY |
579 | if (*DmaBufferBase == 0) {\r |
580 | DEBUG ((DEBUG_INFO, " InitDmaProtection : OutOfResource\n"));\r | |
581 | return EFI_OUT_OF_RESOURCES;\r | |
582 | }\r | |
583 | \r | |
584 | LowBottom = 0;\r | |
585 | LowTop = *DmaBufferBase;\r | |
586 | HighBottom = *DmaBufferBase + DmaBufferSize;\r | |
8e9da4ba | 587 | HighTop = GetTopMemory ();\r |
3f5ed3fa JY |
588 | \r |
589 | Status = SetDmaProtectedRange (\r | |
a1e7cd0b JY |
590 | VTdInfo,\r |
591 | VTdInfo->EngineMask,\r | |
592 | (UINT32)LowBottom,\r | |
593 | (UINT32)(LowTop - LowBottom),\r | |
594 | HighBottom,\r | |
595 | HighTop - HighBottom\r | |
596 | );\r | |
3f5ed3fa JY |
597 | \r |
598 | if (EFI_ERROR(Status)) {\r | |
599 | FreePages ((VOID *)*DmaBufferBase, EFI_SIZE_TO_PAGES(DmaBufferSize));\r | |
600 | }\r | |
601 | \r | |
602 | return Status;\r | |
603 | }\r | |
604 | \r | |
8e9da4ba | 605 | /**\r |
a1e7cd0b JY |
606 | Initializes the Intel VTd Info.\r |
607 | \r | |
608 | @retval EFI_SUCCESS Usb bot driver is successfully initialized.\r | |
609 | @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.\r | |
8e9da4ba | 610 | \r |
8e9da4ba | 611 | **/\r |
a1e7cd0b JY |
612 | EFI_STATUS\r |
613 | InitVTdInfo (\r | |
614 | VOID\r | |
8e9da4ba JY |
615 | )\r |
616 | {\r | |
a1e7cd0b JY |
617 | EFI_STATUS Status;\r |
618 | EFI_ACPI_DMAR_HEADER *AcpiDmarTable;\r | |
619 | VOID *Hob;\r | |
8e9da4ba | 620 | \r |
a1e7cd0b JY |
621 | Status = PeiServicesLocatePpi (\r |
622 | &gEdkiiVTdInfoPpiGuid,\r | |
623 | 0,\r | |
624 | NULL,\r | |
625 | (VOID **)&AcpiDmarTable\r | |
626 | );\r | |
627 | ASSERT_EFI_ERROR(Status);\r | |
8e9da4ba | 628 | \r |
a1e7cd0b | 629 | DumpAcpiDMAR (AcpiDmarTable);\r |
8e9da4ba | 630 | \r |
a1e7cd0b JY |
631 | //\r |
632 | // Clear old VTdInfo Hob.\r | |
633 | //\r | |
634 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r | |
635 | if (Hob != NULL) {\r | |
636 | ZeroMem (&((EFI_HOB_GUID_TYPE *)Hob)->Name, sizeof(EFI_GUID));\r | |
8e9da4ba JY |
637 | }\r |
638 | \r | |
a1e7cd0b JY |
639 | //\r |
640 | // Get DMAR information to local VTdInfo\r | |
641 | //\r | |
642 | Status = ParseDmarAcpiTableDrhd (AcpiDmarTable);\r | |
643 | if (EFI_ERROR(Status)) {\r | |
644 | return Status;\r | |
8e9da4ba JY |
645 | }\r |
646 | \r | |
a1e7cd0b JY |
647 | //\r |
648 | // NOTE: Do not parse RMRR here, because RMRR may cause PMR programming.\r | |
649 | //\r | |
8e9da4ba | 650 | \r |
a1e7cd0b | 651 | return EFI_SUCCESS;\r |
8e9da4ba JY |
652 | }\r |
653 | \r | |
654 | /**\r | |
a1e7cd0b JY |
655 | Initializes the Intel VTd PMR for all memory.\r |
656 | \r | |
657 | @retval EFI_SUCCESS Usb bot driver is successfully initialized.\r | |
658 | @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.\r | |
8e9da4ba | 659 | \r |
8e9da4ba | 660 | **/\r |
a1e7cd0b JY |
661 | EFI_STATUS\r |
662 | InitVTdPmrForAll (\r | |
663 | VOID\r | |
8e9da4ba JY |
664 | )\r |
665 | {\r | |
a1e7cd0b JY |
666 | EFI_STATUS Status;\r |
667 | VOID *Hob;\r | |
668 | VTD_INFO *VTdInfo;\r | |
669 | UINTN LowBottom;\r | |
670 | UINTN LowTop;\r | |
671 | UINTN HighBottom;\r | |
672 | UINT64 HighTop;\r | |
8e9da4ba | 673 | \r |
a1e7cd0b JY |
674 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r |
675 | VTdInfo = GET_GUID_HOB_DATA(Hob);\r | |
8e9da4ba | 676 | \r |
a1e7cd0b JY |
677 | LowBottom = 0;\r |
678 | LowTop = 0;\r | |
679 | HighBottom = 0;\r | |
680 | HighTop = LShiftU64 (1, VTdInfo->HostAddressWidth);\r | |
8e9da4ba | 681 | \r |
a1e7cd0b JY |
682 | Status = SetDmaProtectedRange (\r |
683 | VTdInfo,\r | |
684 | VTdInfo->EngineMask,\r | |
685 | (UINT32)LowBottom,\r | |
686 | (UINT32)(LowTop - LowBottom),\r | |
687 | HighBottom,\r | |
688 | HighTop - HighBottom\r | |
689 | );\r | |
8e9da4ba | 690 | \r |
a1e7cd0b | 691 | return Status;\r |
8e9da4ba JY |
692 | }\r |
693 | \r | |
694 | /**\r | |
a1e7cd0b JY |
695 | Initializes the Intel VTd PMR for DMA buffer.\r |
696 | \r | |
697 | @retval EFI_SUCCESS Usb bot driver is successfully initialized.\r | |
698 | @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.\r | |
8e9da4ba | 699 | \r |
8e9da4ba | 700 | **/\r |
a1e7cd0b JY |
701 | EFI_STATUS\r |
702 | InitVTdPmrForDma (\r | |
703 | VOID\r | |
8e9da4ba JY |
704 | )\r |
705 | {\r | |
a1e7cd0b JY |
706 | EFI_STATUS Status;\r |
707 | VOID *Hob;\r | |
708 | VTD_INFO *VTdInfo;\r | |
709 | DMA_BUFFER_INFO *DmaBufferInfo;\r | |
8e9da4ba | 710 | \r |
a1e7cd0b JY |
711 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r |
712 | VTdInfo = GET_GUID_HOB_DATA(Hob);\r | |
8e9da4ba JY |
713 | \r |
714 | //\r | |
a1e7cd0b | 715 | // If there is RMRR memory, parse it here.\r |
8e9da4ba | 716 | //\r |
a1e7cd0b | 717 | ParseDmarAcpiTableRmrr (VTdInfo);\r |
8e9da4ba | 718 | \r |
a1e7cd0b JY |
719 | Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);\r |
720 | DmaBufferInfo = GET_GUID_HOB_DATA(Hob);\r | |
8e9da4ba | 721 | \r |
a1e7cd0b JY |
722 | DEBUG ((DEBUG_INFO, " DmaBufferSize : 0x%x\n", DmaBufferInfo->DmaBufferSize));\r |
723 | //\r | |
724 | // Find a pre-memory in resource hob as DMA buffer\r | |
725 | // Mark PEI memory to be DMA protected.\r | |
726 | //\r | |
727 | Status = InitDmaProtection (VTdInfo, DmaBufferInfo->DmaBufferSize, &DmaBufferInfo->DmaBufferBase);\r | |
728 | if (EFI_ERROR(Status)) {\r | |
729 | return Status;\r | |
8e9da4ba | 730 | }\r |
8e9da4ba | 731 | \r |
a1e7cd0b | 732 | DEBUG ((DEBUG_INFO, " DmaBufferBase : 0x%x\n", DmaBufferInfo->DmaBufferBase));\r |
8e9da4ba | 733 | \r |
a1e7cd0b JY |
734 | DmaBufferInfo->DmaBufferCurrentTop = DmaBufferInfo->DmaBufferBase + DmaBufferInfo->DmaBufferSize;\r |
735 | DmaBufferInfo->DmaBufferCurrentBottom = DmaBufferInfo->DmaBufferBase;\r | |
8e9da4ba JY |
736 | \r |
737 | //\r | |
a1e7cd0b | 738 | // Install PPI.\r |
8e9da4ba | 739 | //\r |
a1e7cd0b JY |
740 | Status = PeiServicesInstallPpi (&mIoMmuPpiList);\r |
741 | ASSERT_EFI_ERROR(Status);\r | |
8e9da4ba | 742 | \r |
a1e7cd0b | 743 | return Status;\r |
8e9da4ba JY |
744 | }\r |
745 | \r | |
746 | /**\r | |
a1e7cd0b | 747 | This function handles S3 resume task at the end of PEI\r |
8e9da4ba | 748 | \r |
a1e7cd0b JY |
749 | @param[in] PeiServices Pointer to PEI Services Table.\r |
750 | @param[in] NotifyDesc Pointer to the descriptor for the Notification event that\r | |
751 | caused this function to execute.\r | |
752 | @param[in] Ppi Pointer to the PPI data associated with this function.\r | |
8e9da4ba | 753 | \r |
a1e7cd0b | 754 | @retval EFI_STATUS Always return EFI_SUCCESS\r |
8e9da4ba | 755 | **/\r |
a1e7cd0b JY |
756 | EFI_STATUS\r |
757 | EFIAPI\r | |
758 | S3EndOfPeiNotify(\r | |
759 | IN EFI_PEI_SERVICES **PeiServices,\r | |
760 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,\r | |
761 | IN VOID *Ppi\r | |
8e9da4ba JY |
762 | )\r |
763 | {\r | |
a1e7cd0b JY |
764 | VOID *Hob;\r |
765 | VTD_INFO *VTdInfo;\r | |
766 | UINT64 EngineMask;\r | |
8e9da4ba | 767 | \r |
a1e7cd0b | 768 | DEBUG((DEBUG_INFO, "VTdPmr S3EndOfPeiNotify\n"));\r |
8e9da4ba | 769 | \r |
a1e7cd0b JY |
770 | if ((PcdGet8(PcdVTdPolicyPropertyMask) & BIT1) == 0) {\r |
771 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r | |
772 | if (Hob == NULL) {\r | |
773 | return EFI_SUCCESS;\r | |
8e9da4ba | 774 | }\r |
a1e7cd0b | 775 | VTdInfo = GET_GUID_HOB_DATA(Hob);\r |
8e9da4ba | 776 | \r |
a1e7cd0b JY |
777 | EngineMask = LShiftU64 (1, VTdInfo->VTdEngineCount) - 1;\r |
778 | DisableDmaProtection (VTdInfo, EngineMask);\r | |
8e9da4ba | 779 | }\r |
a1e7cd0b | 780 | return EFI_SUCCESS;\r |
8e9da4ba JY |
781 | }\r |
782 | \r | |
a1e7cd0b JY |
783 | EFI_PEI_NOTIFY_DESCRIPTOR mS3EndOfPeiNotifyDesc = {\r |
784 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
785 | &gEfiEndOfPeiSignalPpiGuid,\r | |
786 | S3EndOfPeiNotify\r | |
787 | };\r | |
8e9da4ba | 788 | \r |
fc8be1ad | 789 | /**\r |
a1e7cd0b | 790 | This function handles VTd engine setup\r |
fc8be1ad JY |
791 | \r |
792 | @param[in] PeiServices Pointer to PEI Services Table.\r | |
793 | @param[in] NotifyDesc Pointer to the descriptor for the Notification event that\r | |
794 | caused this function to execute.\r | |
795 | @param[in] Ppi Pointer to the PPI data associated with this function.\r | |
796 | \r | |
797 | @retval EFI_STATUS Always return EFI_SUCCESS\r | |
798 | **/\r | |
799 | EFI_STATUS\r | |
800 | EFIAPI\r | |
a1e7cd0b | 801 | VTdInfoNotify (\r |
fc8be1ad JY |
802 | IN EFI_PEI_SERVICES **PeiServices,\r |
803 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,\r | |
804 | IN VOID *Ppi\r | |
805 | )\r | |
806 | {\r | |
a1e7cd0b JY |
807 | EFI_STATUS Status;\r |
808 | VOID *MemoryDiscovered;\r | |
809 | UINT64 EnabledEngineMask;\r | |
810 | VOID *Hob;\r | |
811 | VTD_INFO *VTdInfo;\r | |
812 | BOOLEAN MemoryInitialized;\r | |
fc8be1ad | 813 | \r |
a1e7cd0b JY |
814 | DEBUG ((DEBUG_INFO, "VTdInfoNotify\n"));\r |
815 | \r | |
816 | //\r | |
817 | // Check if memory is initialized.\r | |
818 | //\r | |
819 | MemoryInitialized = FALSE;\r | |
820 | Status = PeiServicesLocatePpi (\r | |
821 | &gEfiPeiMemoryDiscoveredPpiGuid,\r | |
822 | 0,\r | |
823 | NULL,\r | |
824 | &MemoryDiscovered\r | |
825 | );\r | |
826 | if (!EFI_ERROR(Status)) {\r | |
827 | MemoryInitialized = TRUE;\r | |
828 | }\r | |
829 | \r | |
830 | DEBUG ((DEBUG_INFO, "MemoryInitialized - %x\n", MemoryInitialized));\r | |
831 | \r | |
832 | if (!MemoryInitialized) {\r | |
833 | //\r | |
834 | // If the memory is not initialized,\r | |
835 | // Protect all system memory\r | |
836 | //\r | |
837 | InitVTdInfo ();\r | |
838 | InitVTdPmrForAll ();\r | |
839 | } else {\r | |
840 | //\r | |
841 | // If the memory is initialized,\r | |
842 | // Allocate DMA buffer and protect rest system memory\r | |
843 | //\r | |
844 | \r | |
845 | //\r | |
846 | // NOTE: We need reinit VTdInfo because previous information might be overriden.\r | |
847 | //\r | |
848 | InitVTdInfo ();\r | |
849 | \r | |
850 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r | |
851 | VTdInfo = GET_GUID_HOB_DATA(Hob);\r | |
852 | \r | |
853 | //\r | |
854 | // NOTE: We need check if PMR is enabled or not.\r | |
855 | //\r | |
856 | EnabledEngineMask = GetDmaProtectionEnabledEngineMask (VTdInfo, VTdInfo->EngineMask);\r | |
857 | if (EnabledEngineMask != 0) {\r | |
858 | EnableVTdTranslationProtection (VTdInfo, EnabledEngineMask);\r | |
859 | DisableDmaProtection (VTdInfo, EnabledEngineMask);\r | |
860 | }\r | |
861 | InitVTdPmrForDma ();\r | |
862 | if (EnabledEngineMask != 0) {\r | |
863 | DisableVTdTranslationProtection (VTdInfo, EnabledEngineMask);\r | |
864 | }\r | |
fc8be1ad | 865 | \r |
fc8be1ad | 866 | }\r |
a1e7cd0b | 867 | \r |
fc8be1ad JY |
868 | return EFI_SUCCESS;\r |
869 | }\r | |
870 | \r | |
a1e7cd0b | 871 | EFI_PEI_NOTIFY_DESCRIPTOR mVTdInfoNotifyDesc = {\r |
fc8be1ad | 872 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r |
a1e7cd0b JY |
873 | &gEdkiiVTdInfoPpiGuid,\r |
874 | VTdInfoNotify\r | |
fc8be1ad JY |
875 | };\r |
876 | \r | |
3f5ed3fa JY |
877 | /**\r |
878 | Initializes the Intel VTd PMR PEIM.\r | |
879 | \r | |
880 | @param FileHandle Handle of the file being invoked.\r | |
881 | @param PeiServices Describes the list of possible PEI Services.\r | |
882 | \r | |
883 | @retval EFI_SUCCESS Usb bot driver is successfully initialized.\r | |
884 | @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.\r | |
885 | \r | |
886 | **/\r | |
887 | EFI_STATUS\r | |
888 | EFIAPI\r | |
889 | IntelVTdPmrInitialize (\r | |
890 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
891 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
892 | )\r | |
893 | {\r | |
894 | EFI_STATUS Status;\r | |
fc8be1ad | 895 | EFI_BOOT_MODE BootMode;\r |
a1e7cd0b JY |
896 | DMA_BUFFER_INFO *DmaBufferInfo;\r |
897 | \r | |
898 | DEBUG ((DEBUG_INFO, "IntelVTdPmrInitialize\n"));\r | |
3f5ed3fa JY |
899 | \r |
900 | if ((PcdGet8(PcdVTdPolicyPropertyMask) & BIT0) == 0) {\r | |
901 | return EFI_UNSUPPORTED;\r | |
902 | }\r | |
903 | \r | |
a1e7cd0b JY |
904 | DmaBufferInfo = BuildGuidHob (&mDmaBufferInfoGuid, sizeof(DMA_BUFFER_INFO));\r |
905 | ASSERT(DmaBufferInfo != NULL);\r | |
906 | if (DmaBufferInfo == NULL) {\r | |
907 | return EFI_OUT_OF_RESOURCES;\r | |
8e9da4ba | 908 | }\r |
a1e7cd0b | 909 | ZeroMem (DmaBufferInfo, sizeof(DMA_BUFFER_INFO));\r |
8e9da4ba | 910 | \r |
a1e7cd0b | 911 | PeiServicesGetBootMode (&BootMode);\r |
8e9da4ba | 912 | \r |
fc8be1ad | 913 | if (BootMode == BOOT_ON_S3_RESUME) {\r |
a1e7cd0b | 914 | DmaBufferInfo->DmaBufferSize = TOTAL_DMA_BUFFER_SIZE_S3;\r |
fc8be1ad | 915 | } else {\r |
a1e7cd0b | 916 | DmaBufferInfo->DmaBufferSize = TOTAL_DMA_BUFFER_SIZE;\r |
3f5ed3fa JY |
917 | }\r |
918 | \r | |
a1e7cd0b JY |
919 | Status = PeiServicesNotifyPpi (&mVTdInfoNotifyDesc);\r |
920 | ASSERT_EFI_ERROR (Status);\r | |
3f5ed3fa | 921 | \r |
fc8be1ad | 922 | //\r |
a1e7cd0b | 923 | // Register EndOfPei Notify for S3\r |
fc8be1ad JY |
924 | //\r |
925 | if (BootMode == BOOT_ON_S3_RESUME) {\r | |
926 | Status = PeiServicesNotifyPpi (&mS3EndOfPeiNotifyDesc);\r | |
927 | ASSERT_EFI_ERROR (Status);\r | |
928 | }\r | |
929 | \r | |
a1e7cd0b | 930 | return EFI_SUCCESS;\r |
3f5ed3fa JY |
931 | }\r |
932 | \r |