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1 | /** @file\r |
2 | \r | |
b2725f57 | 3 | Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>\r |
a1e7cd0b JY |
4 | This program and the accompanying materials\r |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php.\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | **/\r | |
13 | \r | |
14 | #include <Uefi.h>\r | |
15 | #include <PiPei.h>\r | |
16 | #include <Library/BaseLib.h>\r | |
17 | #include <Library/BaseMemoryLib.h>\r | |
18 | #include <Library/DebugLib.h>\r | |
19 | #include <Library/HobLib.h>\r | |
20 | #include <IndustryStandard/Vtd.h>\r | |
21 | #include <Ppi/VtdInfo.h>\r | |
22 | \r | |
23 | #include "IntelVTdPmrPei.h"\r | |
24 | \r | |
25 | /**\r | |
26 | Dump DMAR DeviceScopeEntry.\r | |
27 | \r | |
28 | @param[in] DmarDeviceScopeEntry DMAR DeviceScopeEntry\r | |
29 | **/\r | |
30 | VOID\r | |
31 | DumpDmarDeviceScopeEntry (\r | |
32 | IN EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry\r | |
33 | )\r | |
34 | {\r | |
35 | UINTN PciPathNumber;\r | |
36 | UINTN PciPathIndex;\r | |
37 | EFI_ACPI_DMAR_PCI_PATH *PciPath;\r | |
38 | \r | |
39 | if (DmarDeviceScopeEntry == NULL) {\r | |
40 | return;\r | |
41 | }\r | |
42 | \r | |
43 | DEBUG ((DEBUG_INFO,\r | |
44 | " *************************************************************************\n"\r | |
45 | ));\r | |
46 | DEBUG ((DEBUG_INFO,\r | |
47 | " * DMA-Remapping Device Scope Entry Structure *\n"\r | |
48 | ));\r | |
49 | DEBUG ((DEBUG_INFO,\r | |
50 | " *************************************************************************\n"\r | |
51 | ));\r | |
52 | DEBUG ((DEBUG_INFO,\r | |
53 | (sizeof(UINTN) == sizeof(UINT64)) ?\r | |
54 | " DMAR Device Scope Entry address ...................... 0x%016lx\n" :\r | |
55 | " DMAR Device Scope Entry address ...................... 0x%08x\n",\r | |
56 | DmarDeviceScopeEntry\r | |
57 | ));\r | |
58 | DEBUG ((DEBUG_INFO,\r | |
59 | " Device Scope Entry Type ............................ 0x%02x\n",\r | |
60 | DmarDeviceScopeEntry->Type\r | |
61 | ));\r | |
62 | switch (DmarDeviceScopeEntry->Type) {\r | |
63 | case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT:\r | |
64 | DEBUG ((DEBUG_INFO,\r | |
65 | " PCI Endpoint Device\n"\r | |
66 | ));\r | |
67 | break;\r | |
68 | case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_BRIDGE:\r | |
69 | DEBUG ((DEBUG_INFO,\r | |
70 | " PCI Sub-hierachy\n"\r | |
71 | ));\r | |
72 | break;\r | |
73 | default:\r | |
74 | break;\r | |
75 | }\r | |
76 | DEBUG ((DEBUG_INFO,\r | |
77 | " Length ............................................. 0x%02x\n",\r | |
78 | DmarDeviceScopeEntry->Length\r | |
79 | ));\r | |
80 | DEBUG ((DEBUG_INFO,\r | |
81 | " Enumeration ID ..................................... 0x%02x\n",\r | |
82 | DmarDeviceScopeEntry->EnumerationId\r | |
83 | ));\r | |
84 | DEBUG ((DEBUG_INFO,\r | |
85 | " Starting Bus Number ................................ 0x%02x\n",\r | |
86 | DmarDeviceScopeEntry->StartBusNumber\r | |
87 | ));\r | |
88 | \r | |
89 | PciPathNumber = (DmarDeviceScopeEntry->Length - sizeof(EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER)) / sizeof(EFI_ACPI_DMAR_PCI_PATH);\r | |
90 | PciPath = (EFI_ACPI_DMAR_PCI_PATH *)(DmarDeviceScopeEntry + 1);\r | |
91 | for (PciPathIndex = 0; PciPathIndex < PciPathNumber; PciPathIndex++) {\r | |
92 | DEBUG ((DEBUG_INFO,\r | |
93 | " Device ............................................. 0x%02x\n",\r | |
94 | PciPath[PciPathIndex].Device\r | |
95 | ));\r | |
96 | DEBUG ((DEBUG_INFO,\r | |
97 | " Function ........................................... 0x%02x\n",\r | |
98 | PciPath[PciPathIndex].Function\r | |
99 | ));\r | |
100 | }\r | |
101 | \r | |
102 | DEBUG ((DEBUG_INFO,\r | |
103 | " *************************************************************************\n\n"\r | |
104 | ));\r | |
105 | \r | |
106 | return;\r | |
107 | }\r | |
108 | \r | |
109 | /**\r | |
110 | Dump DMAR RMRR table.\r | |
111 | \r | |
112 | @param[in] Rmrr DMAR RMRR table\r | |
113 | **/\r | |
114 | VOID\r | |
115 | DumpDmarRmrr (\r | |
116 | IN EFI_ACPI_DMAR_RMRR_HEADER *Rmrr\r | |
117 | )\r | |
118 | {\r | |
119 | EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry;\r | |
120 | INTN RmrrLen;\r | |
121 | \r | |
122 | if (Rmrr == NULL) {\r | |
123 | return;\r | |
124 | }\r | |
125 | \r | |
126 | DEBUG ((DEBUG_INFO,\r | |
127 | " ***************************************************************************\n"\r | |
128 | ));\r | |
129 | DEBUG ((DEBUG_INFO,\r | |
130 | " * Reserved Memory Region Reporting Structure *\n"\r | |
131 | ));\r | |
132 | DEBUG ((DEBUG_INFO,\r | |
133 | " ***************************************************************************\n"\r | |
134 | ));\r | |
135 | DEBUG ((DEBUG_INFO,\r | |
136 | (sizeof(UINTN) == sizeof(UINT64)) ?\r | |
137 | " RMRR address ........................................... 0x%016lx\n" :\r | |
138 | " RMRR address ........................................... 0x%08x\n",\r | |
139 | Rmrr\r | |
140 | ));\r | |
141 | DEBUG ((DEBUG_INFO,\r | |
142 | " Type ................................................. 0x%04x\n",\r | |
143 | Rmrr->Header.Type\r | |
144 | ));\r | |
145 | DEBUG ((DEBUG_INFO,\r | |
146 | " Length ............................................... 0x%04x\n",\r | |
147 | Rmrr->Header.Length\r | |
148 | ));\r | |
149 | DEBUG ((DEBUG_INFO,\r | |
150 | " Segment Number ....................................... 0x%04x\n",\r | |
151 | Rmrr->SegmentNumber\r | |
152 | ));\r | |
153 | DEBUG ((DEBUG_INFO,\r | |
154 | " Reserved Memory Region Base Address .................. 0x%016lx\n",\r | |
155 | Rmrr->ReservedMemoryRegionBaseAddress\r | |
156 | ));\r | |
157 | DEBUG ((DEBUG_INFO,\r | |
158 | " Reserved Memory Region Limit Address ................. 0x%016lx\n",\r | |
159 | Rmrr->ReservedMemoryRegionLimitAddress\r | |
160 | ));\r | |
161 | \r | |
162 | RmrrLen = Rmrr->Header.Length - sizeof(EFI_ACPI_DMAR_RMRR_HEADER);\r | |
163 | DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)(Rmrr + 1);\r | |
164 | while (RmrrLen > 0) {\r | |
165 | DumpDmarDeviceScopeEntry (DmarDeviceScopeEntry);\r | |
166 | RmrrLen -= DmarDeviceScopeEntry->Length;\r | |
167 | DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDeviceScopeEntry + DmarDeviceScopeEntry->Length);\r | |
168 | }\r | |
169 | \r | |
170 | DEBUG ((DEBUG_INFO,\r | |
171 | " ***************************************************************************\n\n"\r | |
172 | ));\r | |
173 | \r | |
174 | return;\r | |
175 | }\r | |
176 | \r | |
177 | /**\r | |
178 | Dump DMAR DRHD table.\r | |
179 | \r | |
180 | @param[in] Drhd DMAR DRHD table\r | |
181 | **/\r | |
182 | VOID\r | |
183 | DumpDmarDrhd (\r | |
184 | IN EFI_ACPI_DMAR_DRHD_HEADER *Drhd\r | |
185 | )\r | |
186 | {\r | |
187 | EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry;\r | |
188 | INTN DrhdLen;\r | |
189 | \r | |
190 | if (Drhd == NULL) {\r | |
191 | return;\r | |
192 | }\r | |
193 | \r | |
194 | DEBUG ((DEBUG_INFO,\r | |
195 | " ***************************************************************************\n"\r | |
196 | ));\r | |
197 | DEBUG ((DEBUG_INFO,\r | |
198 | " * DMA-Remapping Hardware Definition Structure *\n"\r | |
199 | ));\r | |
200 | DEBUG ((DEBUG_INFO,\r | |
201 | " ***************************************************************************\n"\r | |
202 | ));\r | |
203 | DEBUG ((DEBUG_INFO,\r | |
204 | (sizeof(UINTN) == sizeof(UINT64)) ?\r | |
205 | " DRHD address ........................................... 0x%016lx\n" :\r | |
206 | " DRHD address ........................................... 0x%08x\n",\r | |
207 | Drhd\r | |
208 | ));\r | |
209 | DEBUG ((DEBUG_INFO,\r | |
210 | " Type ................................................. 0x%04x\n",\r | |
211 | Drhd->Header.Type\r | |
212 | ));\r | |
213 | DEBUG ((DEBUG_INFO,\r | |
214 | " Length ............................................... 0x%04x\n",\r | |
215 | Drhd->Header.Length\r | |
216 | ));\r | |
217 | DEBUG ((DEBUG_INFO,\r | |
218 | " Flags ................................................ 0x%02x\n",\r | |
219 | Drhd->Flags\r | |
220 | ));\r | |
221 | DEBUG ((DEBUG_INFO,\r | |
222 | " INCLUDE_PCI_ALL .................................... 0x%02x\n",\r | |
223 | Drhd->Flags & EFI_ACPI_DMAR_DRHD_FLAGS_INCLUDE_PCI_ALL\r | |
224 | ));\r | |
225 | DEBUG ((DEBUG_INFO,\r | |
226 | " Segment Number ....................................... 0x%04x\n",\r | |
227 | Drhd->SegmentNumber\r | |
228 | ));\r | |
229 | DEBUG ((DEBUG_INFO,\r | |
230 | " Register Base Address ................................ 0x%016lx\n",\r | |
231 | Drhd->RegisterBaseAddress\r | |
232 | ));\r | |
233 | \r | |
234 | DrhdLen = Drhd->Header.Length - sizeof(EFI_ACPI_DMAR_DRHD_HEADER);\r | |
235 | DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)(Drhd + 1);\r | |
236 | while (DrhdLen > 0) {\r | |
237 | DumpDmarDeviceScopeEntry (DmarDeviceScopeEntry);\r | |
238 | DrhdLen -= DmarDeviceScopeEntry->Length;\r | |
239 | DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDeviceScopeEntry + DmarDeviceScopeEntry->Length);\r | |
240 | }\r | |
241 | \r | |
242 | DEBUG ((DEBUG_INFO,\r | |
243 | " ***************************************************************************\n\n"\r | |
244 | ));\r | |
245 | \r | |
246 | return;\r | |
247 | }\r | |
248 | \r | |
249 | /**\r | |
250 | Dump DMAR ACPI table.\r | |
251 | \r | |
252 | @param[in] Dmar DMAR ACPI table\r | |
253 | **/\r | |
254 | VOID\r | |
255 | DumpAcpiDMAR (\r | |
256 | IN EFI_ACPI_DMAR_HEADER *Dmar\r | |
257 | )\r | |
258 | {\r | |
259 | EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;\r | |
260 | INTN DmarLen;\r | |
261 | \r | |
262 | if (Dmar == NULL) {\r | |
263 | return;\r | |
264 | }\r | |
265 | \r | |
266 | //\r | |
267 | // Dump Dmar table\r | |
268 | //\r | |
269 | DEBUG ((DEBUG_INFO,\r | |
270 | "*****************************************************************************\n"\r | |
271 | ));\r | |
272 | DEBUG ((DEBUG_INFO,\r | |
273 | "* DMAR Table *\n"\r | |
274 | ));\r | |
275 | DEBUG ((DEBUG_INFO,\r | |
276 | "*****************************************************************************\n"\r | |
277 | ));\r | |
278 | \r | |
279 | DEBUG ((DEBUG_INFO,\r | |
280 | (sizeof(UINTN) == sizeof(UINT64)) ?\r | |
281 | "DMAR address ............................................. 0x%016lx\n" :\r | |
282 | "DMAR address ............................................. 0x%08x\n",\r | |
283 | Dmar\r | |
284 | ));\r | |
285 | \r | |
286 | DEBUG ((DEBUG_INFO,\r | |
287 | " Table Contents:\n"\r | |
288 | ));\r | |
289 | DEBUG ((DEBUG_INFO,\r | |
290 | " Host Address Width ................................... 0x%02x\n",\r | |
291 | Dmar->HostAddressWidth\r | |
292 | ));\r | |
293 | DEBUG ((DEBUG_INFO,\r | |
294 | " Flags ................................................ 0x%02x\n",\r | |
295 | Dmar->Flags\r | |
296 | ));\r | |
297 | DEBUG ((DEBUG_INFO,\r | |
298 | " INTR_REMAP ......................................... 0x%02x\n",\r | |
299 | Dmar->Flags & EFI_ACPI_DMAR_FLAGS_INTR_REMAP\r | |
300 | ));\r | |
301 | DEBUG ((DEBUG_INFO,\r | |
302 | " X2APIC_OPT_OUT_SET ................................. 0x%02x\n",\r | |
303 | Dmar->Flags & EFI_ACPI_DMAR_FLAGS_X2APIC_OPT_OUT\r | |
304 | ));\r | |
6cea3c1b JY |
305 | DEBUG ((DEBUG_INFO,\r |
306 | " DMA_CTRL_PLATFORM_OPT_IN_FLAG ...................... 0x%02x\n",\r | |
307 | Dmar->Flags & EFI_ACPI_DMAR_FLAGS_DMA_CTRL_PLATFORM_OPT_IN_FLAG\r | |
308 | ));\r | |
a1e7cd0b JY |
309 | \r |
310 | DmarLen = Dmar->Header.Length - sizeof(EFI_ACPI_DMAR_HEADER);\r | |
311 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)(Dmar + 1);\r | |
312 | while (DmarLen > 0) {\r | |
313 | switch (DmarHeader->Type) {\r | |
314 | case EFI_ACPI_DMAR_TYPE_DRHD:\r | |
315 | DumpDmarDrhd ((EFI_ACPI_DMAR_DRHD_HEADER *)DmarHeader);\r | |
316 | break;\r | |
317 | case EFI_ACPI_DMAR_TYPE_RMRR:\r | |
318 | DumpDmarRmrr ((EFI_ACPI_DMAR_RMRR_HEADER *)DmarHeader);\r | |
319 | break;\r | |
320 | default:\r | |
321 | break;\r | |
322 | }\r | |
323 | DmarLen -= DmarHeader->Length;\r | |
324 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);\r | |
325 | }\r | |
326 | \r | |
327 | DEBUG ((DEBUG_INFO,\r | |
328 | "*****************************************************************************\n\n"\r | |
329 | ));\r | |
330 | \r | |
331 | return;\r | |
332 | }\r | |
333 | \r | |
334 | /**\r | |
335 | Get VTd engine number.\r | |
336 | \r | |
337 | @param[in] AcpiDmarTable DMAR ACPI table\r | |
338 | \r | |
339 | @return the VTd engine number.\r | |
340 | **/\r | |
341 | UINTN\r | |
342 | GetVtdEngineNumber (\r | |
343 | IN EFI_ACPI_DMAR_HEADER *AcpiDmarTable\r | |
344 | )\r | |
345 | {\r | |
346 | EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;\r | |
347 | UINTN VtdIndex;\r | |
348 | \r | |
349 | VtdIndex = 0;\r | |
350 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(AcpiDmarTable + 1));\r | |
351 | while ((UINTN)DmarHeader < (UINTN)AcpiDmarTable + AcpiDmarTable->Header.Length) {\r | |
352 | switch (DmarHeader->Type) {\r | |
353 | case EFI_ACPI_DMAR_TYPE_DRHD:\r | |
354 | VtdIndex++;\r | |
355 | break;\r | |
356 | default:\r | |
357 | break;\r | |
358 | }\r | |
359 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);\r | |
360 | }\r | |
361 | return VtdIndex ;\r | |
362 | }\r | |
363 | \r | |
364 | /**\r | |
365 | Process DMAR DHRD table.\r | |
366 | \r | |
367 | @param[in] VTdInfo The VTd engine context information.\r | |
368 | @param[in] VtdIndex The index of VTd engine.\r | |
369 | @param[in] DmarDrhd The DRHD table.\r | |
370 | **/\r | |
371 | VOID\r | |
372 | ProcessDhrd (\r | |
373 | IN VTD_INFO *VTdInfo,\r | |
374 | IN UINTN VtdIndex,\r | |
375 | IN EFI_ACPI_DMAR_DRHD_HEADER *DmarDrhd\r | |
376 | )\r | |
377 | {\r | |
378 | DEBUG ((DEBUG_INFO," VTD (%d) BaseAddress - 0x%016lx\n", VtdIndex, DmarDrhd->RegisterBaseAddress));\r | |
379 | VTdInfo->VTdEngineAddress[VtdIndex] = DmarDrhd->RegisterBaseAddress;\r | |
380 | }\r | |
381 | \r | |
382 | /**\r | |
383 | Parse DMAR DRHD table.\r | |
384 | \r | |
385 | @param[in] AcpiDmarTable DMAR ACPI table\r | |
386 | \r | |
387 | @return EFI_SUCCESS The DMAR DRHD table is parsed.\r | |
388 | **/\r | |
389 | EFI_STATUS\r | |
390 | ParseDmarAcpiTableDrhd (\r | |
391 | IN EFI_ACPI_DMAR_HEADER *AcpiDmarTable\r | |
392 | )\r | |
393 | {\r | |
394 | EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;\r | |
395 | UINTN VtdUnitNumber;\r | |
396 | UINTN VtdIndex;\r | |
397 | VTD_INFO *VTdInfo;\r | |
398 | \r | |
399 | VtdUnitNumber = GetVtdEngineNumber (AcpiDmarTable);\r | |
400 | if (VtdUnitNumber == 0) {\r | |
401 | return EFI_UNSUPPORTED;\r | |
402 | }\r | |
403 | \r | |
404 | VTdInfo = BuildGuidHob (&mVTdInfoGuid, sizeof(VTD_INFO) + (VtdUnitNumber - 1) * sizeof(UINT64));\r | |
405 | ASSERT(VTdInfo != NULL);\r | |
406 | if (VTdInfo == NULL) {\r | |
407 | return EFI_OUT_OF_RESOURCES;\r | |
408 | }\r | |
409 | \r | |
410 | //\r | |
411 | // Initialize the engine mask to all.\r | |
412 | //\r | |
413 | VTdInfo->AcpiDmarTable = AcpiDmarTable;\r | |
414 | VTdInfo->EngineMask = LShiftU64 (1, VtdUnitNumber) - 1;\r | |
415 | VTdInfo->HostAddressWidth = AcpiDmarTable->HostAddressWidth;\r | |
416 | VTdInfo->VTdEngineCount = VtdUnitNumber;\r | |
417 | \r | |
418 | VtdIndex = 0;\r | |
419 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(AcpiDmarTable + 1));\r | |
420 | while ((UINTN)DmarHeader < (UINTN)AcpiDmarTable + AcpiDmarTable->Header.Length) {\r | |
421 | switch (DmarHeader->Type) {\r | |
422 | case EFI_ACPI_DMAR_TYPE_DRHD:\r | |
423 | ASSERT (VtdIndex < VtdUnitNumber);\r | |
424 | ProcessDhrd (VTdInfo, VtdIndex, (EFI_ACPI_DMAR_DRHD_HEADER *)DmarHeader);\r | |
425 | VtdIndex++;\r | |
426 | \r | |
427 | break;\r | |
428 | \r | |
429 | default:\r | |
430 | break;\r | |
431 | }\r | |
432 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);\r | |
433 | }\r | |
434 | ASSERT (VtdIndex == VtdUnitNumber);\r | |
435 | \r | |
436 | return EFI_SUCCESS;\r | |
437 | }\r | |
438 | \r | |
439 | /**\r | |
440 | Return the VTd engine index according to the Segment and DevScopeEntry.\r | |
441 | \r | |
442 | @param AcpiDmarTable DMAR ACPI table\r | |
443 | @param Segment The segment of the VTd engine\r | |
444 | @param DevScopeEntry The DevScopeEntry of the VTd engine\r | |
445 | \r | |
446 | @return The VTd engine index according to the Segment and DevScopeEntry.\r | |
447 | @retval -1 The VTd engine is not found.\r | |
448 | **/\r | |
449 | UINTN\r | |
450 | GetVTdEngineFromDevScopeEntry (\r | |
451 | IN EFI_ACPI_DMAR_HEADER *AcpiDmarTable,\r | |
452 | IN UINT16 Segment,\r | |
453 | IN EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DevScopeEntry\r | |
454 | )\r | |
455 | {\r | |
456 | EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;\r | |
457 | UINTN VtdIndex;\r | |
458 | EFI_ACPI_DMAR_DRHD_HEADER *DmarDrhd;\r | |
459 | EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *ThisDevScopeEntry;\r | |
460 | \r | |
461 | VtdIndex = 0;\r | |
462 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(AcpiDmarTable + 1));\r | |
463 | while ((UINTN)DmarHeader < (UINTN)AcpiDmarTable + AcpiDmarTable->Header.Length) {\r | |
464 | switch (DmarHeader->Type) {\r | |
465 | case EFI_ACPI_DMAR_TYPE_DRHD:\r | |
466 | DmarDrhd = (EFI_ACPI_DMAR_DRHD_HEADER *)DmarHeader;\r | |
467 | if (DmarDrhd->SegmentNumber != Segment) {\r | |
468 | // Mismatch\r | |
469 | break;\r | |
470 | }\r | |
471 | if ((DmarDrhd->Header.Length == sizeof(EFI_ACPI_DMAR_DRHD_HEADER)) ||\r | |
472 | ((DmarDrhd->Flags & EFI_ACPI_DMAR_DRHD_FLAGS_INCLUDE_PCI_ALL) != 0)) {\r | |
473 | // No DevScopeEntry\r | |
474 | // Do not handle PCI_ALL\r | |
475 | break;\r | |
476 | }\r | |
477 | ThisDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)(DmarDrhd + 1));\r | |
478 | while ((UINTN)ThisDevScopeEntry < (UINTN)DmarDrhd + DmarDrhd->Header.Length) {\r | |
479 | if ((ThisDevScopeEntry->Length == DevScopeEntry->Length) &&\r | |
480 | (CompareMem (ThisDevScopeEntry, DevScopeEntry, DevScopeEntry->Length) == 0)) {\r | |
481 | return VtdIndex;\r | |
482 | }\r | |
483 | ThisDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)ThisDevScopeEntry + ThisDevScopeEntry->Length);\r | |
484 | }\r | |
485 | break;\r | |
486 | default:\r | |
487 | break;\r | |
488 | }\r | |
489 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);\r | |
490 | }\r | |
491 | return (UINTN)-1;\r | |
492 | }\r | |
493 | \r | |
494 | /**\r | |
495 | Process DMAR RMRR table.\r | |
496 | \r | |
497 | @param[in] VTdInfo The VTd engine context information.\r | |
498 | @param[in] DmarRmrr The RMRR table.\r | |
499 | **/\r | |
500 | VOID\r | |
501 | ProcessRmrr (\r | |
502 | IN VTD_INFO *VTdInfo,\r | |
503 | IN EFI_ACPI_DMAR_RMRR_HEADER *DmarRmrr\r | |
504 | )\r | |
505 | {\r | |
506 | EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDevScopeEntry;\r | |
507 | UINTN VTdIndex;\r | |
508 | UINT64 RmrrMask;\r | |
509 | UINTN LowBottom;\r | |
510 | UINTN LowTop;\r | |
511 | UINTN HighBottom;\r | |
512 | UINT64 HighTop;\r | |
513 | EFI_ACPI_DMAR_HEADER *AcpiDmarTable;\r | |
514 | \r | |
515 | AcpiDmarTable = VTdInfo->AcpiDmarTable;\r | |
516 | \r | |
517 | DEBUG ((DEBUG_INFO," RMRR (Base 0x%016lx, Limit 0x%016lx)\n", DmarRmrr->ReservedMemoryRegionBaseAddress, DmarRmrr->ReservedMemoryRegionLimitAddress));\r | |
518 | \r | |
519 | if ((DmarRmrr->ReservedMemoryRegionBaseAddress == 0) ||\r | |
520 | (DmarRmrr->ReservedMemoryRegionLimitAddress == 0)) {\r | |
521 | return ;\r | |
522 | }\r | |
523 | \r | |
524 | DmarDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)(DmarRmrr + 1));\r | |
525 | while ((UINTN)DmarDevScopeEntry < (UINTN)DmarRmrr + DmarRmrr->Header.Length) {\r | |
526 | ASSERT (DmarDevScopeEntry->Type == EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT);\r | |
527 | \r | |
528 | VTdIndex = GetVTdEngineFromDevScopeEntry (AcpiDmarTable, DmarRmrr->SegmentNumber, DmarDevScopeEntry);\r | |
529 | if (VTdIndex != (UINTN)-1) {\r | |
530 | RmrrMask = LShiftU64 (1, VTdIndex);\r | |
531 | \r | |
532 | LowBottom = 0;\r | |
533 | LowTop = (UINTN)DmarRmrr->ReservedMemoryRegionBaseAddress;\r | |
534 | HighBottom = (UINTN)DmarRmrr->ReservedMemoryRegionLimitAddress + 1;\r | |
b2725f57 | 535 | HighTop = LShiftU64 (1, VTdInfo->HostAddressWidth + 1);\r |
a1e7cd0b JY |
536 | \r |
537 | SetDmaProtectedRange (\r | |
538 | VTdInfo,\r | |
539 | RmrrMask,\r | |
540 | 0,\r | |
541 | (UINT32)(LowTop - LowBottom),\r | |
542 | HighBottom,\r | |
543 | HighTop - HighBottom\r | |
544 | );\r | |
545 | \r | |
546 | //\r | |
547 | // Remove the engine from the engine mask.\r | |
548 | // The assumption is that any other PEI driver does not access\r | |
549 | // the device covered by this engine.\r | |
550 | //\r | |
551 | VTdInfo->EngineMask = VTdInfo->EngineMask & (~RmrrMask);\r | |
552 | }\r | |
553 | \r | |
554 | DmarDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDevScopeEntry + DmarDevScopeEntry->Length);\r | |
555 | }\r | |
556 | }\r | |
557 | \r | |
558 | /**\r | |
559 | Parse DMAR DRHD table.\r | |
560 | \r | |
561 | @param[in] VTdInfo The VTd engine context information.\r | |
562 | **/\r | |
563 | VOID\r | |
564 | ParseDmarAcpiTableRmrr (\r | |
565 | IN VTD_INFO *VTdInfo\r | |
566 | )\r | |
567 | {\r | |
568 | EFI_ACPI_DMAR_HEADER *AcpiDmarTable;\r | |
569 | EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;\r | |
570 | \r | |
571 | AcpiDmarTable = VTdInfo->AcpiDmarTable;\r | |
572 | \r | |
573 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(AcpiDmarTable + 1));\r | |
574 | while ((UINTN)DmarHeader < (UINTN)AcpiDmarTable + AcpiDmarTable->Header.Length) {\r | |
575 | switch (DmarHeader->Type) {\r | |
576 | case EFI_ACPI_DMAR_TYPE_RMRR:\r | |
577 | ProcessRmrr (VTdInfo, (EFI_ACPI_DMAR_RMRR_HEADER *)DmarHeader);\r | |
578 | break;\r | |
579 | default:\r | |
580 | break;\r | |
581 | }\r | |
582 | DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);\r | |
583 | }\r | |
584 | }\r |