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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 | |
b2725f57 | 63 | +------------------+ <=============== PHMR.Limit (+ alignment) (1 << (HostAddressWidth + 1))\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 | |
3f5ed3fa JY |
380 | /**\r |
381 | Initialize DMA protection.\r | |
382 | \r | |
a1e7cd0b | 383 | @param VTdInfo The VTd engine context information.\r |
3f5ed3fa JY |
384 | \r |
385 | @retval EFI_SUCCESS the DMA protection is initialized.\r | |
386 | @retval EFI_OUT_OF_RESOURCES no enough resource to initialize DMA protection.\r | |
387 | **/\r | |
388 | EFI_STATUS\r | |
389 | InitDmaProtection (\r | |
ed0e52fc | 390 | IN VTD_INFO *VTdInfo\r |
3f5ed3fa JY |
391 | )\r |
392 | {\r | |
393 | EFI_STATUS Status;\r | |
3f5ed3fa JY |
394 | UINT32 LowMemoryAlignment;\r |
395 | UINT64 HighMemoryAlignment;\r | |
396 | UINTN MemoryAlignment;\r | |
397 | UINTN LowBottom;\r | |
398 | UINTN LowTop;\r | |
399 | UINTN HighBottom;\r | |
400 | UINT64 HighTop;\r | |
ed0e52fc SZ |
401 | DMA_BUFFER_INFO *DmaBufferInfo;\r |
402 | VOID *Hob;\r | |
403 | \r | |
404 | Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);\r | |
405 | DmaBufferInfo = GET_GUID_HOB_DATA(Hob);\r | |
406 | \r | |
407 | DEBUG ((DEBUG_INFO, " DmaBufferSize : 0x%x\n", DmaBufferInfo->DmaBufferSize));\r | |
3f5ed3fa | 408 | \r |
a1e7cd0b JY |
409 | LowMemoryAlignment = GetLowMemoryAlignment (VTdInfo, VTdInfo->EngineMask);\r |
410 | HighMemoryAlignment = GetHighMemoryAlignment (VTdInfo, VTdInfo->EngineMask);\r | |
3f5ed3fa JY |
411 | if (LowMemoryAlignment < HighMemoryAlignment) {\r |
412 | MemoryAlignment = (UINTN)HighMemoryAlignment;\r | |
413 | } else {\r | |
414 | MemoryAlignment = LowMemoryAlignment;\r | |
415 | }\r | |
ed0e52fc SZ |
416 | ASSERT (DmaBufferInfo->DmaBufferSize == ALIGN_VALUE(DmaBufferInfo->DmaBufferSize, MemoryAlignment));\r |
417 | DmaBufferInfo->DmaBufferBase = (UINTN)AllocateAlignedPages (EFI_SIZE_TO_PAGES(DmaBufferInfo->DmaBufferSize), MemoryAlignment);\r | |
418 | ASSERT (DmaBufferInfo->DmaBufferBase != 0);\r | |
419 | if (DmaBufferInfo->DmaBufferBase == 0) {\r | |
3f5ed3fa JY |
420 | DEBUG ((DEBUG_INFO, " InitDmaProtection : OutOfResource\n"));\r |
421 | return EFI_OUT_OF_RESOURCES;\r | |
422 | }\r | |
423 | \r | |
ed0e52fc SZ |
424 | DEBUG ((DEBUG_INFO, " DmaBufferBase : 0x%x\n", DmaBufferInfo->DmaBufferBase));\r |
425 | \r | |
426 | DmaBufferInfo->DmaBufferCurrentTop = DmaBufferInfo->DmaBufferBase + DmaBufferInfo->DmaBufferSize;\r | |
427 | DmaBufferInfo->DmaBufferCurrentBottom = DmaBufferInfo->DmaBufferBase;\r | |
428 | \r | |
429 | //\r | |
430 | // Install PPI.\r | |
431 | //\r | |
432 | Status = PeiServicesInstallPpi (&mIoMmuPpiList);\r | |
433 | ASSERT_EFI_ERROR(Status);\r | |
434 | \r | |
3f5ed3fa | 435 | LowBottom = 0;\r |
ed0e52fc SZ |
436 | LowTop = DmaBufferInfo->DmaBufferBase;\r |
437 | HighBottom = DmaBufferInfo->DmaBufferBase + DmaBufferInfo->DmaBufferSize;\r | |
b2725f57 | 438 | HighTop = LShiftU64 (1, VTdInfo->HostAddressWidth + 1);\r |
3f5ed3fa JY |
439 | \r |
440 | Status = SetDmaProtectedRange (\r | |
a1e7cd0b JY |
441 | VTdInfo,\r |
442 | VTdInfo->EngineMask,\r | |
443 | (UINT32)LowBottom,\r | |
444 | (UINT32)(LowTop - LowBottom),\r | |
445 | HighBottom,\r | |
446 | HighTop - HighBottom\r | |
447 | );\r | |
3f5ed3fa JY |
448 | \r |
449 | if (EFI_ERROR(Status)) {\r | |
ed0e52fc | 450 | FreePages ((VOID *)DmaBufferInfo->DmaBufferBase, EFI_SIZE_TO_PAGES(DmaBufferInfo->DmaBufferSize));\r |
3f5ed3fa JY |
451 | }\r |
452 | \r | |
453 | return Status;\r | |
454 | }\r | |
455 | \r | |
8e9da4ba | 456 | /**\r |
a1e7cd0b JY |
457 | Initializes the Intel VTd Info.\r |
458 | \r | |
459 | @retval EFI_SUCCESS Usb bot driver is successfully initialized.\r | |
460 | @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.\r | |
8e9da4ba | 461 | \r |
8e9da4ba | 462 | **/\r |
a1e7cd0b JY |
463 | EFI_STATUS\r |
464 | InitVTdInfo (\r | |
465 | VOID\r | |
8e9da4ba JY |
466 | )\r |
467 | {\r | |
a1e7cd0b JY |
468 | EFI_STATUS Status;\r |
469 | EFI_ACPI_DMAR_HEADER *AcpiDmarTable;\r | |
470 | VOID *Hob;\r | |
8e9da4ba | 471 | \r |
a1e7cd0b JY |
472 | Status = PeiServicesLocatePpi (\r |
473 | &gEdkiiVTdInfoPpiGuid,\r | |
474 | 0,\r | |
475 | NULL,\r | |
476 | (VOID **)&AcpiDmarTable\r | |
477 | );\r | |
478 | ASSERT_EFI_ERROR(Status);\r | |
8e9da4ba | 479 | \r |
a1e7cd0b | 480 | DumpAcpiDMAR (AcpiDmarTable);\r |
8e9da4ba | 481 | \r |
a1e7cd0b JY |
482 | //\r |
483 | // Clear old VTdInfo Hob.\r | |
484 | //\r | |
485 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r | |
486 | if (Hob != NULL) {\r | |
487 | ZeroMem (&((EFI_HOB_GUID_TYPE *)Hob)->Name, sizeof(EFI_GUID));\r | |
8e9da4ba JY |
488 | }\r |
489 | \r | |
a1e7cd0b JY |
490 | //\r |
491 | // Get DMAR information to local VTdInfo\r | |
492 | //\r | |
493 | Status = ParseDmarAcpiTableDrhd (AcpiDmarTable);\r | |
494 | if (EFI_ERROR(Status)) {\r | |
495 | return Status;\r | |
8e9da4ba JY |
496 | }\r |
497 | \r | |
a1e7cd0b JY |
498 | //\r |
499 | // NOTE: Do not parse RMRR here, because RMRR may cause PMR programming.\r | |
500 | //\r | |
8e9da4ba | 501 | \r |
a1e7cd0b | 502 | return EFI_SUCCESS;\r |
8e9da4ba JY |
503 | }\r |
504 | \r | |
505 | /**\r | |
a1e7cd0b JY |
506 | Initializes the Intel VTd PMR for all memory.\r |
507 | \r | |
508 | @retval EFI_SUCCESS Usb bot driver is successfully initialized.\r | |
509 | @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.\r | |
8e9da4ba | 510 | \r |
8e9da4ba | 511 | **/\r |
a1e7cd0b JY |
512 | EFI_STATUS\r |
513 | InitVTdPmrForAll (\r | |
514 | VOID\r | |
8e9da4ba JY |
515 | )\r |
516 | {\r | |
a1e7cd0b JY |
517 | EFI_STATUS Status;\r |
518 | VOID *Hob;\r | |
519 | VTD_INFO *VTdInfo;\r | |
520 | UINTN LowBottom;\r | |
521 | UINTN LowTop;\r | |
522 | UINTN HighBottom;\r | |
523 | UINT64 HighTop;\r | |
8e9da4ba | 524 | \r |
a1e7cd0b JY |
525 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r |
526 | VTdInfo = GET_GUID_HOB_DATA(Hob);\r | |
8e9da4ba | 527 | \r |
a1e7cd0b JY |
528 | LowBottom = 0;\r |
529 | LowTop = 0;\r | |
530 | HighBottom = 0;\r | |
9dd8b190 | 531 | HighTop = LShiftU64 (1, VTdInfo->HostAddressWidth + 1);\r |
8e9da4ba | 532 | \r |
a1e7cd0b JY |
533 | Status = SetDmaProtectedRange (\r |
534 | VTdInfo,\r | |
535 | VTdInfo->EngineMask,\r | |
536 | (UINT32)LowBottom,\r | |
537 | (UINT32)(LowTop - LowBottom),\r | |
538 | HighBottom,\r | |
539 | HighTop - HighBottom\r | |
540 | );\r | |
8e9da4ba | 541 | \r |
a1e7cd0b | 542 | return Status;\r |
8e9da4ba JY |
543 | }\r |
544 | \r | |
545 | /**\r | |
a1e7cd0b JY |
546 | Initializes the Intel VTd PMR for DMA buffer.\r |
547 | \r | |
548 | @retval EFI_SUCCESS Usb bot driver is successfully initialized.\r | |
549 | @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.\r | |
8e9da4ba | 550 | \r |
8e9da4ba | 551 | **/\r |
a1e7cd0b JY |
552 | EFI_STATUS\r |
553 | InitVTdPmrForDma (\r | |
554 | VOID\r | |
8e9da4ba JY |
555 | )\r |
556 | {\r | |
a1e7cd0b JY |
557 | EFI_STATUS Status;\r |
558 | VOID *Hob;\r | |
559 | VTD_INFO *VTdInfo;\r | |
8e9da4ba | 560 | \r |
a1e7cd0b JY |
561 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r |
562 | VTdInfo = GET_GUID_HOB_DATA(Hob);\r | |
8e9da4ba JY |
563 | \r |
564 | //\r | |
a1e7cd0b | 565 | // If there is RMRR memory, parse it here.\r |
8e9da4ba | 566 | //\r |
a1e7cd0b | 567 | ParseDmarAcpiTableRmrr (VTdInfo);\r |
8e9da4ba | 568 | \r |
8e9da4ba | 569 | //\r |
ed0e52fc SZ |
570 | // Allocate a range in PEI memory as DMA buffer\r |
571 | // Mark others to be DMA protected.\r | |
8e9da4ba | 572 | //\r |
ed0e52fc | 573 | Status = InitDmaProtection (VTdInfo);\r |
8e9da4ba | 574 | \r |
a1e7cd0b | 575 | return Status;\r |
8e9da4ba JY |
576 | }\r |
577 | \r | |
578 | /**\r | |
a1e7cd0b | 579 | This function handles S3 resume task at the end of PEI\r |
8e9da4ba | 580 | \r |
a1e7cd0b JY |
581 | @param[in] PeiServices Pointer to PEI Services Table.\r |
582 | @param[in] NotifyDesc Pointer to the descriptor for the Notification event that\r | |
583 | caused this function to execute.\r | |
584 | @param[in] Ppi Pointer to the PPI data associated with this function.\r | |
8e9da4ba | 585 | \r |
a1e7cd0b | 586 | @retval EFI_STATUS Always return EFI_SUCCESS\r |
8e9da4ba | 587 | **/\r |
a1e7cd0b JY |
588 | EFI_STATUS\r |
589 | EFIAPI\r | |
590 | S3EndOfPeiNotify(\r | |
591 | IN EFI_PEI_SERVICES **PeiServices,\r | |
592 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,\r | |
593 | IN VOID *Ppi\r | |
8e9da4ba JY |
594 | )\r |
595 | {\r | |
a1e7cd0b JY |
596 | VOID *Hob;\r |
597 | VTD_INFO *VTdInfo;\r | |
598 | UINT64 EngineMask;\r | |
8e9da4ba | 599 | \r |
a1e7cd0b | 600 | DEBUG((DEBUG_INFO, "VTdPmr S3EndOfPeiNotify\n"));\r |
8e9da4ba | 601 | \r |
a1e7cd0b JY |
602 | if ((PcdGet8(PcdVTdPolicyPropertyMask) & BIT1) == 0) {\r |
603 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r | |
604 | if (Hob == NULL) {\r | |
605 | return EFI_SUCCESS;\r | |
8e9da4ba | 606 | }\r |
a1e7cd0b | 607 | VTdInfo = GET_GUID_HOB_DATA(Hob);\r |
8e9da4ba | 608 | \r |
a1e7cd0b JY |
609 | EngineMask = LShiftU64 (1, VTdInfo->VTdEngineCount) - 1;\r |
610 | DisableDmaProtection (VTdInfo, EngineMask);\r | |
8e9da4ba | 611 | }\r |
a1e7cd0b | 612 | return EFI_SUCCESS;\r |
8e9da4ba JY |
613 | }\r |
614 | \r | |
a1e7cd0b JY |
615 | EFI_PEI_NOTIFY_DESCRIPTOR mS3EndOfPeiNotifyDesc = {\r |
616 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
617 | &gEfiEndOfPeiSignalPpiGuid,\r | |
618 | S3EndOfPeiNotify\r | |
619 | };\r | |
8e9da4ba | 620 | \r |
fc8be1ad | 621 | /**\r |
a1e7cd0b | 622 | This function handles VTd engine setup\r |
fc8be1ad JY |
623 | \r |
624 | @param[in] PeiServices Pointer to PEI Services Table.\r | |
625 | @param[in] NotifyDesc Pointer to the descriptor for the Notification event that\r | |
626 | caused this function to execute.\r | |
627 | @param[in] Ppi Pointer to the PPI data associated with this function.\r | |
628 | \r | |
629 | @retval EFI_STATUS Always return EFI_SUCCESS\r | |
630 | **/\r | |
631 | EFI_STATUS\r | |
632 | EFIAPI\r | |
a1e7cd0b | 633 | VTdInfoNotify (\r |
fc8be1ad JY |
634 | IN EFI_PEI_SERVICES **PeiServices,\r |
635 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,\r | |
636 | IN VOID *Ppi\r | |
637 | )\r | |
638 | {\r | |
a1e7cd0b JY |
639 | EFI_STATUS Status;\r |
640 | VOID *MemoryDiscovered;\r | |
641 | UINT64 EnabledEngineMask;\r | |
642 | VOID *Hob;\r | |
643 | VTD_INFO *VTdInfo;\r | |
644 | BOOLEAN MemoryInitialized;\r | |
fc8be1ad | 645 | \r |
a1e7cd0b JY |
646 | DEBUG ((DEBUG_INFO, "VTdInfoNotify\n"));\r |
647 | \r | |
648 | //\r | |
649 | // Check if memory is initialized.\r | |
650 | //\r | |
651 | MemoryInitialized = FALSE;\r | |
652 | Status = PeiServicesLocatePpi (\r | |
653 | &gEfiPeiMemoryDiscoveredPpiGuid,\r | |
654 | 0,\r | |
655 | NULL,\r | |
656 | &MemoryDiscovered\r | |
657 | );\r | |
658 | if (!EFI_ERROR(Status)) {\r | |
659 | MemoryInitialized = TRUE;\r | |
660 | }\r | |
661 | \r | |
662 | DEBUG ((DEBUG_INFO, "MemoryInitialized - %x\n", MemoryInitialized));\r | |
663 | \r | |
664 | if (!MemoryInitialized) {\r | |
665 | //\r | |
666 | // If the memory is not initialized,\r | |
667 | // Protect all system memory\r | |
668 | //\r | |
669 | InitVTdInfo ();\r | |
670 | InitVTdPmrForAll ();\r | |
671 | } else {\r | |
672 | //\r | |
673 | // If the memory is initialized,\r | |
674 | // Allocate DMA buffer and protect rest system memory\r | |
675 | //\r | |
676 | \r | |
677 | //\r | |
678 | // NOTE: We need reinit VTdInfo because previous information might be overriden.\r | |
679 | //\r | |
680 | InitVTdInfo ();\r | |
681 | \r | |
682 | Hob = GetFirstGuidHob (&mVTdInfoGuid);\r | |
683 | VTdInfo = GET_GUID_HOB_DATA(Hob);\r | |
684 | \r | |
685 | //\r | |
686 | // NOTE: We need check if PMR is enabled or not.\r | |
687 | //\r | |
688 | EnabledEngineMask = GetDmaProtectionEnabledEngineMask (VTdInfo, VTdInfo->EngineMask);\r | |
689 | if (EnabledEngineMask != 0) {\r | |
690 | EnableVTdTranslationProtection (VTdInfo, EnabledEngineMask);\r | |
691 | DisableDmaProtection (VTdInfo, EnabledEngineMask);\r | |
692 | }\r | |
693 | InitVTdPmrForDma ();\r | |
694 | if (EnabledEngineMask != 0) {\r | |
695 | DisableVTdTranslationProtection (VTdInfo, EnabledEngineMask);\r | |
696 | }\r | |
fc8be1ad | 697 | \r |
fc8be1ad | 698 | }\r |
a1e7cd0b | 699 | \r |
fc8be1ad JY |
700 | return EFI_SUCCESS;\r |
701 | }\r | |
702 | \r | |
a1e7cd0b | 703 | EFI_PEI_NOTIFY_DESCRIPTOR mVTdInfoNotifyDesc = {\r |
fc8be1ad | 704 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r |
a1e7cd0b JY |
705 | &gEdkiiVTdInfoPpiGuid,\r |
706 | VTdInfoNotify\r | |
fc8be1ad JY |
707 | };\r |
708 | \r | |
3f5ed3fa JY |
709 | /**\r |
710 | Initializes the Intel VTd PMR PEIM.\r | |
711 | \r | |
712 | @param FileHandle Handle of the file being invoked.\r | |
713 | @param PeiServices Describes the list of possible PEI Services.\r | |
714 | \r | |
715 | @retval EFI_SUCCESS Usb bot driver is successfully initialized.\r | |
716 | @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.\r | |
717 | \r | |
718 | **/\r | |
719 | EFI_STATUS\r | |
720 | EFIAPI\r | |
721 | IntelVTdPmrInitialize (\r | |
722 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
723 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
724 | )\r | |
725 | {\r | |
726 | EFI_STATUS Status;\r | |
fc8be1ad | 727 | EFI_BOOT_MODE BootMode;\r |
a1e7cd0b JY |
728 | DMA_BUFFER_INFO *DmaBufferInfo;\r |
729 | \r | |
730 | DEBUG ((DEBUG_INFO, "IntelVTdPmrInitialize\n"));\r | |
3f5ed3fa JY |
731 | \r |
732 | if ((PcdGet8(PcdVTdPolicyPropertyMask) & BIT0) == 0) {\r | |
733 | return EFI_UNSUPPORTED;\r | |
734 | }\r | |
735 | \r | |
a1e7cd0b JY |
736 | DmaBufferInfo = BuildGuidHob (&mDmaBufferInfoGuid, sizeof(DMA_BUFFER_INFO));\r |
737 | ASSERT(DmaBufferInfo != NULL);\r | |
738 | if (DmaBufferInfo == NULL) {\r | |
739 | return EFI_OUT_OF_RESOURCES;\r | |
8e9da4ba | 740 | }\r |
a1e7cd0b | 741 | ZeroMem (DmaBufferInfo, sizeof(DMA_BUFFER_INFO));\r |
8e9da4ba | 742 | \r |
a1e7cd0b | 743 | PeiServicesGetBootMode (&BootMode);\r |
8e9da4ba | 744 | \r |
fc8be1ad | 745 | if (BootMode == BOOT_ON_S3_RESUME) {\r |
a1e7cd0b | 746 | DmaBufferInfo->DmaBufferSize = TOTAL_DMA_BUFFER_SIZE_S3;\r |
fc8be1ad | 747 | } else {\r |
a1e7cd0b | 748 | DmaBufferInfo->DmaBufferSize = TOTAL_DMA_BUFFER_SIZE;\r |
3f5ed3fa JY |
749 | }\r |
750 | \r | |
a1e7cd0b JY |
751 | Status = PeiServicesNotifyPpi (&mVTdInfoNotifyDesc);\r |
752 | ASSERT_EFI_ERROR (Status);\r | |
3f5ed3fa | 753 | \r |
fc8be1ad | 754 | //\r |
a1e7cd0b | 755 | // Register EndOfPei Notify for S3\r |
fc8be1ad JY |
756 | //\r |
757 | if (BootMode == BOOT_ON_S3_RESUME) {\r | |
758 | Status = PeiServicesNotifyPpi (&mS3EndOfPeiNotifyDesc);\r | |
759 | ASSERT_EFI_ERROR (Status);\r | |
760 | }\r | |
761 | \r | |
a1e7cd0b | 762 | return EFI_SUCCESS;\r |
3f5ed3fa JY |
763 | }\r |
764 | \r |