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MdeModulePkg: Put report status code after event was signaled per PI spec.
[mirror_edk2.git] / IntelFrameworkModulePkg / Csm / LegacyBiosDxe / LegacyBootSupport.c
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bcecde14 1/** @file\r
2\r
de2eccc4 3Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r
bcecde14 4\r
5This program and the accompanying materials\r
6are licensed and made available under the terms and conditions\r
7of the BSD License which accompanies this distribution. The\r
8full text of the license may be found at\r
9http://opensource.org/licenses/bsd-license.php\r
10\r
11THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
12WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
13\r
14**/\r
15\r
16#include "LegacyBiosInterface.h"\r
17#include <IndustryStandard/Pci.h>\r
18\r
19#define BOOT_LEGACY_OS 0\r
20#define BOOT_EFI_OS 1\r
21#define BOOT_UNCONVENTIONAL_DEVICE 2\r
22\r
23UINT32 mLoadOptionsSize = 0;\r
24UINTN mBootMode = BOOT_LEGACY_OS;\r
25VOID *mLoadOptions = NULL;\r
26BBS_BBS_DEVICE_PATH *mBbsDevicePathPtr = NULL;\r
27BBS_BBS_DEVICE_PATH mBbsDevicePathNode;\r
28UDC_ATTRIBUTES mAttributes = { 0, 0, 0, 0 };\r
29UINTN mBbsEntry = 0;\r
30VOID *mBeerData = NULL;\r
31VOID *mServiceAreaData = NULL;\r
32UINT64 mLowWater = 0xffffffffffffffffULL;\r
33\r
34extern BBS_TABLE *mBbsTable;\r
35\r
b6823730
EL		 36extern VOID *mRuntimeSmbiosEntryPoint;\r
37extern EFI_PHYSICAL_ADDRESS mReserveSmbiosEntryPoint;\r
38extern EFI_PHYSICAL_ADDRESS mStructureTableAddress;\r
39\r
bcecde14 40/**\r
41 Print the BBS Table.\r
42\r
43 @param BbsTable The BBS table.\r
44\r
45\r
46**/\r
47VOID\r
48PrintBbsTable (\r
49 IN BBS_TABLE *BbsTable\r
50 )\r
51{\r
52 UINT16 Index;\r
53 UINT16 SubIndex;\r
54 CHAR8 *String;\r
55\r
56 DEBUG ((EFI_D_INFO, "\n"));\r
57 DEBUG ((EFI_D_INFO, " NO Prio bb/dd/ff cl/sc Type Stat segm:offs mfgs:mfgo dess:deso\n"));\r
58 DEBUG ((EFI_D_INFO, "=================================================================\n"));\r
59 for (Index = 0; Index < MAX_BBS_ENTRIES; Index++) {\r
60 //\r
61 // Filter\r
62 //\r
63 if (BbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) {\r
64 continue;\r
65 }\r
66\r
67 DEBUG ((\r
68 EFI_D_INFO,\r
69 " %02x: %04x %02x/%02x/%02x %02x/%02x %04x %04x",\r
70 (UINTN) Index,\r
71 (UINTN) BbsTable[Index].BootPriority,\r
72 (UINTN) BbsTable[Index].Bus,\r
73 (UINTN) BbsTable[Index].Device,\r
74 (UINTN) BbsTable[Index].Function,\r
75 (UINTN) BbsTable[Index].Class,\r
76 (UINTN) BbsTable[Index].SubClass,\r
77 (UINTN) BbsTable[Index].DeviceType,\r
78 (UINTN) * (UINT16 *) &BbsTable[Index].StatusFlags\r
79 ));\r
80 DEBUG ((\r
81 EFI_D_INFO,\r
82 " %04x:%04x %04x:%04x %04x:%04x",\r
83 (UINTN) BbsTable[Index].BootHandlerSegment,\r
84 (UINTN) BbsTable[Index].BootHandlerOffset,\r
85 (UINTN) BbsTable[Index].MfgStringSegment,\r
86 (UINTN) BbsTable[Index].MfgStringOffset,\r
87 (UINTN) BbsTable[Index].DescStringSegment,\r
88 (UINTN) BbsTable[Index].DescStringOffset\r
89 ));\r
90\r
91 //\r
92 // Print DescString\r
93 //\r
94 String = (CHAR8 *)(UINTN)((BbsTable[Index].DescStringSegment << 4) + BbsTable[Index].DescStringOffset);\r
95 if (String != NULL) {\r
96 DEBUG ((EFI_D_INFO," ("));\r
97 for (SubIndex = 0; String[SubIndex] != 0; SubIndex++) {\r
98 DEBUG ((EFI_D_INFO, "%c", String[SubIndex]));\r
99 }\r
100 DEBUG ((EFI_D_INFO,")"));\r
101 }\r
102 DEBUG ((EFI_D_INFO,"\n"));\r
103 }\r
104\r
105 DEBUG ((EFI_D_INFO, "\n"));\r
106\r
107 return ;\r
108}\r
109\r
110/**\r
111 Print the BBS Table.\r
112\r
113 @param HddInfo The HddInfo table.\r
114\r
115\r
116**/\r
117VOID\r
118PrintHddInfo (\r
119 IN HDD_INFO *HddInfo\r
120 )\r
121{\r
122 UINTN Index;\r
123\r
124 DEBUG ((EFI_D_INFO, "\n"));\r
125 for (Index = 0; Index < MAX_IDE_CONTROLLER; Index++) {\r
126 DEBUG ((EFI_D_INFO, "Index - %04x\n", Index));\r
127 DEBUG ((EFI_D_INFO, " Status - %04x\n", (UINTN)HddInfo[Index].Status));\r
128 DEBUG ((EFI_D_INFO, " B/D/F - %02x/%02x/%02x\n", (UINTN)HddInfo[Index].Bus, (UINTN)HddInfo[Index].Device, (UINTN)HddInfo[Index].Function));\r
129 DEBUG ((EFI_D_INFO, " Command - %04x\n", HddInfo[Index].CommandBaseAddress));\r
130 DEBUG ((EFI_D_INFO, " Control - %04x\n", HddInfo[Index].ControlBaseAddress));\r
131 DEBUG ((EFI_D_INFO, " BusMaster - %04x\n", HddInfo[Index].BusMasterAddress));\r
132 DEBUG ((EFI_D_INFO, " HddIrq - %02x\n", HddInfo[Index].HddIrq));\r
133 DEBUG ((EFI_D_INFO, " IdentifyDrive[0].Raw[0] - %x\n", HddInfo[Index].IdentifyDrive[0].Raw[0]));\r
134 DEBUG ((EFI_D_INFO, " IdentifyDrive[1].Raw[0] - %x\n", HddInfo[Index].IdentifyDrive[1].Raw[0]));\r
135 }\r
136\r
137 DEBUG ((EFI_D_INFO, "\n"));\r
138\r
139 return ;\r
140}\r
141\r
7dad86fc
RN		 142/**\r
143 Print the PCI Interrupt Line and Interrupt Pin registers.\r
144**/\r
145VOID\r
146PrintPciInterruptRegister (\r
147 VOID\r
148 )\r
149{\r
150 EFI_STATUS Status;\r
151 UINTN Index;\r
152 EFI_HANDLE *Handles;\r
153 UINTN HandleNum;\r
154 EFI_PCI_IO_PROTOCOL *PciIo;\r
155 UINT8 Interrupt[2];\r
156 UINTN Segment;\r
157 UINTN Bus;\r
158 UINTN Device;\r
159 UINTN Function;\r
160\r
161 gBS->LocateHandleBuffer (\r
162 ByProtocol,\r
163 &gEfiPciIoProtocolGuid,\r
164 NULL,\r
165 &HandleNum,\r
166 &Handles\r
167 );\r
168\r
169 Bus = 0;\r
170 Device = 0;\r
171 Function = 0;\r
172\r
173 DEBUG ((EFI_D_INFO, "\n"));\r
174 DEBUG ((EFI_D_INFO, " bb/dd/ff interrupt line interrupt pin\n"));\r
175 DEBUG ((EFI_D_INFO, "======================================\n"));\r
176 for (Index = 0; Index < HandleNum; Index++) {\r
177 Status = gBS->HandleProtocol (Handles[Index], &gEfiPciIoProtocolGuid, (VOID **) &PciIo);\r
178 if (!EFI_ERROR (Status)) {\r
179 Status = PciIo->Pci.Read (\r
180 PciIo,\r
181 EfiPciIoWidthUint8,\r
182 PCI_INT_LINE_OFFSET,\r
183 2,\r
184 Interrupt\r
185 );\r
186 }\r
187 if (!EFI_ERROR (Status)) {\r
188 Status = PciIo->GetLocation (\r
189 PciIo,\r
190 &Segment,\r
191 &Bus,\r
192 &Device,\r
193 &Function\r
194 );\r
195 }\r
196 if (!EFI_ERROR (Status)) {\r
197 DEBUG ((EFI_D_INFO, " %02x/%02x/%02x 0x%02x 0x%02x\n",\r
198 Bus, Device, Function, Interrupt[0], Interrupt[1]));\r
199 }\r
200 }\r
201 DEBUG ((EFI_D_INFO, "\n"));\r
202\r
203 if (Handles != NULL) {\r
204 FreePool (Handles);\r
205 }\r
206}\r
207\r
bcecde14 208/**\r
209 Identify drive data must be updated to actual parameters before boot.\r
210\r
211 @param IdentifyDriveData ATA Identify Data\r
212\r
213**/\r
214VOID\r
215UpdateIdentifyDriveData (\r
216 IN UINT8 *IdentifyDriveData\r
217 );\r
218\r
219/**\r
220 Update SIO data.\r
221\r
222 @param Private Legacy BIOS Instance data\r
223\r
224 @retval EFI_SUCCESS Removable media not present\r
225\r
226**/\r
227EFI_STATUS\r
228UpdateSioData (\r
229 IN LEGACY_BIOS_INSTANCE *Private\r
230 )\r
231{\r
232 EFI_STATUS Status;\r
233 UINTN Index;\r
234 UINTN Index1;\r
235 UINT8 LegacyInterrupts[16];\r
236 EFI_LEGACY_IRQ_ROUTING_ENTRY *RoutingTable;\r
237 UINTN RoutingTableEntries;\r
238 EFI_LEGACY_IRQ_PRIORITY_TABLE_ENTRY *IrqPriorityTable;\r
239 UINTN NumberPriorityEntries;\r
240 EFI_TO_COMPATIBILITY16_BOOT_TABLE *EfiToLegacy16BootTable;\r
241 UINT8 HddIrq;\r
242 UINT16 LegacyInt;\r
243 UINT16 LegMask;\r
244 UINT32 Register;\r
245 UINTN HandleCount;\r
246 EFI_HANDLE *HandleBuffer;\r
247 EFI_ISA_IO_PROTOCOL *IsaIo;\r
248\r
249 LegacyInt = 0;\r
250 HandleBuffer = NULL;\r
251\r
252 EfiToLegacy16BootTable = &Private->IntThunk->EfiToLegacy16BootTable;\r
253 LegacyBiosBuildSioData (Private);\r
254 SetMem (LegacyInterrupts, sizeof (LegacyInterrupts), 0);\r
255\r
256 //\r
257 // Create list of legacy interrupts.\r
258 //\r
259 for (Index = 0; Index < 4; Index++) {\r
260 LegacyInterrupts[Index] = EfiToLegacy16BootTable->SioData.Serial[Index].Irq;\r
261 }\r
262\r
263 for (Index = 4; Index < 7; Index++) {\r
264 LegacyInterrupts[Index] = EfiToLegacy16BootTable->SioData.Parallel[Index - 4].Irq;\r
265 }\r
266\r
267 LegacyInterrupts[7] = EfiToLegacy16BootTable->SioData.Floppy.Irq;\r
268\r
269 //\r
270 // Get Legacy Hdd IRQs. If native mode treat as PCI\r
271 //\r
272 for (Index = 0; Index < 2; Index++) {\r
273 HddIrq = EfiToLegacy16BootTable->HddInfo[Index].HddIrq;\r
274 if ((HddIrq != 0) && ((HddIrq == 15) || (HddIrq == 14))) {\r
275 LegacyInterrupts[Index + 8] = HddIrq;\r
276 }\r
277 }\r
278\r
279 Private->LegacyBiosPlatform->GetRoutingTable (\r
280 Private->LegacyBiosPlatform,\r
281 (VOID *) &RoutingTable,\r
282 &RoutingTableEntries,\r
283 NULL,\r
284 NULL,\r
285 (VOID **) &IrqPriorityTable,\r
286 &NumberPriorityEntries\r
287 );\r
288 //\r
289 // Remove legacy interrupts from the list of PCI interrupts available.\r
290 //\r
291 for (Index = 0; Index <= 0x0b; Index++) {\r
292 for (Index1 = 0; Index1 <= NumberPriorityEntries; Index1++) {\r
293 if (LegacyInterrupts[Index] != 0) {\r
294 LegacyInt = (UINT16) (LegacyInt | (1 << LegacyInterrupts[Index]));\r
295 if (LegacyInterrupts[Index] == IrqPriorityTable[Index1].Irq) {\r
296 IrqPriorityTable[Index1].Used = LEGACY_USED;\r
297 }\r
298 }\r
299 }\r
300 }\r
301\r
302 Private->Legacy8259->GetMask (\r
303 Private->Legacy8259,\r
304 &LegMask,\r
305 NULL,\r
306 NULL,\r
307 NULL\r
308 );\r
309\r
310 //\r
311 // Set SIO interrupts and disable mouse. Let mouse driver\r
312 // re-enable it.\r
313 //\r
314 LegMask = (UINT16) ((LegMask &~LegacyInt) | 0x1000);\r
315 Private->Legacy8259->SetMask (\r
316 Private->Legacy8259,\r
317 &LegMask,\r
318 NULL,\r
319 NULL,\r
320 NULL\r
321 );\r
322\r
323 //\r
324 // Disable mouse in keyboard controller\r
325 //\r
326 Register = 0xA7;\r
327 Status = gBS->LocateHandleBuffer (\r
328 ByProtocol,\r
329 &gEfiIsaIoProtocolGuid,\r
330 NULL,\r
331 &HandleCount,\r
332 &HandleBuffer\r
333 );\r
334 if (EFI_ERROR (Status)) {\r
335 return Status;\r
336 }\r
337\r
338 for (Index = 0; Index < HandleCount; Index++) {\r
339 Status = gBS->HandleProtocol (\r
340 HandleBuffer[Index],\r
341 &gEfiIsaIoProtocolGuid,\r
342 (VOID **) &IsaIo\r
343 );\r
344 ASSERT_EFI_ERROR (Status);\r
345 IsaIo->Io.Write (IsaIo, EfiIsaIoWidthUint8, 0x64, 1, &Register);\r
346\r
347 }\r
348\r
349 if (HandleBuffer != NULL) {\r
350 FreePool (HandleBuffer);\r
351 }\r
352\r
353 return EFI_SUCCESS;\r
354\r
355}\r
356\r
357/**\r
358 Identify drive data must be updated to actual parameters before boot.\r
359 This requires updating the checksum, if it exists.\r
360\r
361 @param IdentifyDriveData ATA Identify Data\r
362 @param Checksum checksum of the ATA Identify Data\r
363\r
364 @retval EFI_SUCCESS checksum calculated\r
365 @retval EFI_SECURITY_VIOLATION IdentifyData invalid\r
366\r
367**/\r
368EFI_STATUS\r
369CalculateIdentifyDriveChecksum (\r
370 IN UINT8 *IdentifyDriveData,\r
371 OUT UINT8 *Checksum\r
372 )\r
373{\r
374 UINTN Index;\r
375 UINT8 LocalChecksum;\r
376 LocalChecksum = 0;\r
377 *Checksum = 0;\r
378 if (IdentifyDriveData[510] != 0xA5) {\r
379 return EFI_SECURITY_VIOLATION;\r
380 }\r
381\r
382 for (Index = 0; Index < 512; Index++) {\r
383 LocalChecksum = (UINT8) (LocalChecksum + IdentifyDriveData[Index]);\r
384 }\r
385\r
386 *Checksum = LocalChecksum;\r
387 return EFI_SUCCESS;\r
388}\r
389\r
390\r
391/**\r
392 Identify drive data must be updated to actual parameters before boot.\r
393\r
394 @param IdentifyDriveData ATA Identify Data\r
395\r
396\r
397**/\r
398VOID\r
399UpdateIdentifyDriveData (\r
400 IN UINT8 *IdentifyDriveData\r
401 )\r
402{\r
403 UINT16 NumberCylinders;\r
404 UINT16 NumberHeads;\r
405 UINT16 NumberSectorsTrack;\r
406 UINT32 CapacityInSectors;\r
407 UINT8 OriginalChecksum;\r
408 UINT8 FinalChecksum;\r
409 EFI_STATUS Status;\r
410 ATAPI_IDENTIFY *ReadInfo;\r
411\r
412 //\r
413 // Status indicates if Integrity byte is correct. Checksum should be\r
414 // 0 if valid.\r
415 //\r
416 ReadInfo = (ATAPI_IDENTIFY *) IdentifyDriveData;\r
417 Status = CalculateIdentifyDriveChecksum (IdentifyDriveData, &OriginalChecksum);\r
418 if (OriginalChecksum != 0) {\r
419 Status = EFI_SECURITY_VIOLATION;\r
420 }\r
421 //\r
422 // If NumberCylinders = 0 then do data(Controller present but don drive attached).\r
423 //\r
424 NumberCylinders = ReadInfo->Raw[1];\r
425 if (NumberCylinders != 0) {\r
426 ReadInfo->Raw[54] = NumberCylinders;\r
427\r
428 NumberHeads = ReadInfo->Raw[3];\r
429 ReadInfo->Raw[55] = NumberHeads;\r
430\r
431 NumberSectorsTrack = ReadInfo->Raw[6];\r
432 ReadInfo->Raw[56] = NumberSectorsTrack;\r
433\r
434 //\r
435 // Copy Multisector info and set valid bit.\r
436 //\r
437 ReadInfo->Raw[59] = (UINT16) (ReadInfo->Raw[47] + 0x100);\r
438 CapacityInSectors = (UINT32) ((UINT32) (NumberCylinders) * (UINT32) (NumberHeads) * (UINT32) (NumberSectorsTrack));\r
439 ReadInfo->Raw[57] = (UINT16) (CapacityInSectors >> 16);\r
440 ReadInfo->Raw[58] = (UINT16) (CapacityInSectors & 0xffff);\r
441 if (Status == EFI_SUCCESS) {\r
442 //\r
443 // Forece checksum byte to 0 and get new checksum.\r
444 //\r
445 ReadInfo->Raw[255] &= 0xff;\r
446 CalculateIdentifyDriveChecksum (IdentifyDriveData, &FinalChecksum);\r
447\r
448 //\r
449 // Force new checksum such that sum is 0.\r
450 //\r
451 FinalChecksum = (UINT8) ((UINT8)0 - FinalChecksum);\r
452 ReadInfo->Raw[255] = (UINT16) (ReadInfo->Raw[255] | (FinalChecksum << 8));\r
453 }\r
454 }\r
455}\r
456\r
457/**\r
458 Identify drive data must be updated to actual parameters before boot.\r
459 Do for all drives.\r
460\r
461 @param Private Legacy BIOS Instance data\r
462\r
463\r
464**/\r
465VOID\r
466UpdateAllIdentifyDriveData (\r
467 IN LEGACY_BIOS_INSTANCE *Private\r
468 )\r
469{\r
470 UINTN Index;\r
471 HDD_INFO *HddInfo;\r
472\r
473 HddInfo = &Private->IntThunk->EfiToLegacy16BootTable.HddInfo[0];\r
474\r
475 for (Index = 0; Index < MAX_IDE_CONTROLLER; Index++) {\r
476 //\r
477 // Each controller can have 2 devices. Update for each device\r
478 //\r
479 if ((HddInfo[Index].Status & HDD_MASTER_IDE) != 0) {\r
480 UpdateIdentifyDriveData ((UINT8 *) (&HddInfo[Index].IdentifyDrive[0].Raw[0]));\r
481 }\r
482\r
483 if ((HddInfo[Index].Status & HDD_SLAVE_IDE) != 0) {\r
484 UpdateIdentifyDriveData ((UINT8 *) (&HddInfo[Index].IdentifyDrive[1].Raw[0]));\r
485 }\r
486 }\r
487}\r
488\r
489/**\r
490 Enable ide controller. This gets disabled when LegacyBoot.c is about\r
491 to run the Option ROMs.\r
492\r
493 @param Private Legacy BIOS Instance data\r
494\r
495\r
496**/\r
497VOID\r
498EnableIdeController (\r
499 IN LEGACY_BIOS_INSTANCE *Private\r
500 )\r
501{\r
502 EFI_PCI_IO_PROTOCOL *PciIo;\r
503 EFI_STATUS Status;\r
504 EFI_HANDLE IdeController;\r
505 UINT8 ByteBuffer;\r
506 UINTN HandleCount;\r
507 EFI_HANDLE *HandleBuffer;\r
508\r
509 Status = Private->LegacyBiosPlatform->GetPlatformHandle (\r
510 Private->LegacyBiosPlatform,\r
511 EfiGetPlatformIdeHandle,\r
512 0,\r
513 &HandleBuffer,\r
514 &HandleCount,\r
515 NULL\r
516 );\r
517 if (!EFI_ERROR (Status)) {\r
518 IdeController = HandleBuffer[0];\r
519 Status = gBS->HandleProtocol (\r
520 IdeController,\r
521 &gEfiPciIoProtocolGuid,\r
522 (VOID **) &PciIo\r
523 );\r
524 ByteBuffer = 0x1f;\r
525 if (!EFI_ERROR (Status)) {\r
526 PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x04, 1, &ByteBuffer);\r
527 }\r
528 }\r
529}\r
530\r
531\r
532/**\r
533 Enable ide controller. This gets disabled when LegacyBoot.c is about\r
534 to run the Option ROMs.\r
535\r
536 @param Private Legacy BIOS Instance data\r
537\r
538\r
539**/\r
540VOID\r
541EnableAllControllers (\r
542 IN LEGACY_BIOS_INSTANCE *Private\r
543 )\r
544{\r
545 UINTN HandleCount;\r
546 EFI_HANDLE *HandleBuffer;\r
547 UINTN Index;\r
548 EFI_PCI_IO_PROTOCOL *PciIo;\r
549 PCI_TYPE01 PciConfigHeader;\r
550 EFI_STATUS Status;\r
551\r
552 //\r
553 //\r
554 //\r
555 EnableIdeController (Private);\r
556\r
557 //\r
558 // Assumption is table is built from low bus to high bus numbers.\r
559 //\r
560 Status = gBS->LocateHandleBuffer (\r
561 ByProtocol,\r
562 &gEfiPciIoProtocolGuid,\r
563 NULL,\r
564 &HandleCount,\r
565 &HandleBuffer\r
566 );\r
567 ASSERT_EFI_ERROR (Status);\r
568\r
569 for (Index = 0; Index < HandleCount; Index++) {\r
570 Status = gBS->HandleProtocol (\r
571 HandleBuffer[Index],\r
572 &gEfiPciIoProtocolGuid,\r
573 (VOID **) &PciIo\r
574 );\r
575 ASSERT_EFI_ERROR (Status);\r
576\r
577 PciIo->Pci.Read (\r
578 PciIo,\r
579 EfiPciIoWidthUint32,\r
580 0,\r
581 sizeof (PciConfigHeader) / sizeof (UINT32),\r
582 &PciConfigHeader\r
583 );\r
584\r
585 //\r
586 // We do not enable PPB here. This is for HotPlug Consideration.\r
587 // The Platform HotPlug Driver is responsible for Padding enough hot plug\r
588 // resources. It is also responsible for enable this bridge. If it\r
589 // does not pad it. It will cause some early Windows fail to installation.\r
590 // If the platform driver does not pad resource for PPB, PPB should be in\r
591 // un-enabled state to let Windows know that this PPB is not configured by\r
592 // BIOS. So Windows will allocate default resource for PPB.\r
593 //\r
594 // The reason for why we enable the command register is:\r
595 // The CSM will use the IO bar to detect some IRQ status, if the command\r
596 // is disabled, the IO resource will be out of scope.\r
597 // For example:\r
598 // We installed a legacy IRQ handle for a PCI IDE controller. When IRQ\r
599 // comes up, the handle will check the IO space to identify is the\r
600 // controller generated the IRQ source.\r
601 // If the IO command is not enabled, the IRQ handler will has wrong\r
602 // information. It will cause IRQ storm when the correctly IRQ handler fails\r
603 // to run.\r
604 //\r
605 if (!(IS_PCI_VGA (&PciConfigHeader) ||\r
606 IS_PCI_OLD_VGA (&PciConfigHeader) ||\r
607 IS_PCI_IDE (&PciConfigHeader) ||\r
608 IS_PCI_P2P (&PciConfigHeader) ||\r
609 IS_PCI_P2P_SUB (&PciConfigHeader) ||\r
610 IS_PCI_LPC (&PciConfigHeader) )) {\r
611\r
612 PciConfigHeader.Hdr.Command |= 0x1f;\r
613\r
614 PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 4, 1, &PciConfigHeader.Hdr.Command);\r
615 }\r
616 }\r
617}\r
618\r
619/**\r
620 The following routines are identical in operation, so combine\r
621 for code compaction:\r
622 EfiGetPlatformBinaryGetMpTable\r
623 EfiGetPlatformBinaryGetOemIntData\r
624 EfiGetPlatformBinaryGetOem32Data\r
625 EfiGetPlatformBinaryGetOem16Data\r
626\r
627 @param This Protocol instance pointer.\r
628 @param Id Table/Data identifier\r
629\r
630 @retval EFI_SUCCESS Success\r
631 @retval EFI_INVALID_PARAMETER Invalid ID\r
632 @retval EFI_OUT_OF_RESOURCES no resource to get data or table\r
633\r
634**/\r
635EFI_STATUS\r
636LegacyGetDataOrTable (\r
637 IN EFI_LEGACY_BIOS_PROTOCOL *This,\r
638 IN EFI_GET_PLATFORM_INFO_MODE Id\r
639 )\r
640{\r
641 VOID *Table;\r
642 UINT32 TablePtr;\r
643 UINTN TableSize;\r
644 UINTN Alignment;\r
645 UINTN Location;\r
646 EFI_STATUS Status;\r
647 EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *LegacyBiosPlatform;\r
648 EFI_COMPATIBILITY16_TABLE *Legacy16Table;\r
649 EFI_IA32_REGISTER_SET Regs;\r
650 LEGACY_BIOS_INSTANCE *Private;\r
651\r
652 Private = LEGACY_BIOS_INSTANCE_FROM_THIS (This);\r
653\r
654 LegacyBiosPlatform = Private->LegacyBiosPlatform;\r
655 Legacy16Table = Private->Legacy16Table;\r
656\r
657 //\r
658 // Phase 1 - get an address allocated in 16-bit code\r
659 //\r
660 while (TRUE) {\r
661 switch (Id) {\r
662 case EfiGetPlatformBinaryMpTable:\r
663 case EfiGetPlatformBinaryOemIntData:\r
664 case EfiGetPlatformBinaryOem32Data:\r
665 case EfiGetPlatformBinaryOem16Data:\r
666 {\r
667 Status = LegacyBiosPlatform->GetPlatformInfo (\r
668 LegacyBiosPlatform,\r
669 Id,\r
670 (VOID *) &Table,\r
671 &TableSize,\r
672 &Location,\r
673 &Alignment,\r
674 0,\r
675 0\r
676 );\r
677 DEBUG ((EFI_D_INFO, "LegacyGetDataOrTable - ID: %x, %r\n", (UINTN)Id, Status));\r
678 DEBUG ((EFI_D_INFO, " Table - %x, Size - %x, Location - %x, Alignment - %x\n", (UINTN)Table, (UINTN)TableSize, (UINTN)Location, (UINTN)Alignment));\r
679 break;\r
680 }\r
681\r
682 default:\r
683 {\r
684 return EFI_INVALID_PARAMETER;\r
685 }\r
686 }\r
687\r
688 if (EFI_ERROR (Status)) {\r
689 return Status;\r
690 }\r
691\r
692 ZeroMem (&Regs, sizeof (EFI_IA32_REGISTER_SET));\r
693 Regs.X.AX = Legacy16GetTableAddress;\r
694 Regs.X.CX = (UINT16) TableSize;\r
695 Regs.X.BX = (UINT16) Location;\r
696 Regs.X.DX = (UINT16) Alignment;\r
697 Private->LegacyBios.FarCall86 (\r
698 This,\r
699 Private->Legacy16CallSegment,\r
700 Private->Legacy16CallOffset,\r
701 &Regs,\r
702 NULL,\r
703 0\r
704 );\r
705\r
706 if (Regs.X.AX != 0) {\r
707 DEBUG ((EFI_D_ERROR, "Table ID %x length insufficient\n", Id));\r
708 return EFI_OUT_OF_RESOURCES;\r
709 } else {\r
710 break;\r
711 }\r
712 }\r
713 //\r
714 // Phase 2 Call routine second time with address to allow address adjustment\r
715 //\r
716 Status = LegacyBiosPlatform->GetPlatformInfo (\r
717 LegacyBiosPlatform,\r
718 Id,\r
719 (VOID *) &Table,\r
720 &TableSize,\r
721 &Location,\r
722 &Alignment,\r
723 Regs.X.DS,\r
724 Regs.X.BX\r
725 );\r
726 switch (Id) {\r
727 case EfiGetPlatformBinaryMpTable:\r
728 {\r
729 Legacy16Table->MpTablePtr = (UINT32) (Regs.X.DS * 16 + Regs.X.BX);\r
730 Legacy16Table->MpTableLength = (UINT32)TableSize;\r
731 DEBUG ((EFI_D_INFO, "MP table in legacy region - %x\n", (UINTN)Legacy16Table->MpTablePtr));\r
732 break;\r
733 }\r
734\r
735 case EfiGetPlatformBinaryOemIntData:\r
736 {\r
737\r
738 Legacy16Table->OemIntSegment = Regs.X.DS;\r
739 Legacy16Table->OemIntOffset = Regs.X.BX;\r
740 DEBUG ((EFI_D_INFO, "OemInt table in legacy region - %04x:%04x\n", (UINTN)Legacy16Table->OemIntSegment, (UINTN)Legacy16Table->OemIntOffset));\r
741 break;\r
742 }\r
743\r
744 case EfiGetPlatformBinaryOem32Data:\r
745 {\r
746 Legacy16Table->Oem32Segment = Regs.X.DS;\r
747 Legacy16Table->Oem32Offset = Regs.X.BX;\r
748 DEBUG ((EFI_D_INFO, "Oem32 table in legacy region - %04x:%04x\n", (UINTN)Legacy16Table->Oem32Segment, (UINTN)Legacy16Table->Oem32Offset));\r
749 break;\r
750 }\r
751\r
752 case EfiGetPlatformBinaryOem16Data:\r
753 {\r
754 //\r
755 // Legacy16Table->Oem16Segment = Regs.X.DS;\r
756 // Legacy16Table->Oem16Offset = Regs.X.BX;\r
757 DEBUG ((EFI_D_INFO, "Oem16 table in legacy region - %04x:%04x\n", (UINTN)Legacy16Table->Oem16Segment, (UINTN)Legacy16Table->Oem16Offset));\r
758 break;\r
759 }\r
760\r
761 default:\r
762 {\r
763 return EFI_INVALID_PARAMETER;\r
764 }\r
765 }\r
766\r
767 if (EFI_ERROR (Status)) {\r
768 return Status;\r
769 }\r
770 //\r
771 // Phase 3 Copy table to final location\r
772 //\r
773 TablePtr = (UINT32) (Regs.X.DS * 16 + Regs.X.BX);\r
774\r
775 CopyMem (\r
776 (VOID *) (UINTN)TablePtr,\r
777 Table,\r
778 TableSize\r
779 );\r
780\r
781 return EFI_SUCCESS;\r
782}\r
783\r
b6823730
EL		 784/**\r
785 Copy SMBIOS table to EfiReservedMemoryType of memory for legacy boot.\r
786\r
787**/\r
788VOID\r
789CreateSmbiosTableInReservedMemory (\r
790 VOID\r
791 )\r
792{\r
793 SMBIOS_TABLE_ENTRY_POINT *EntryPointStructure;\r
794 \r
795 if ((mRuntimeSmbiosEntryPoint == NULL) || \r
796 (mReserveSmbiosEntryPoint == 0) || \r
797 (mStructureTableAddress == 0)) {\r
798 return;\r
799 }\r
800 \r
801 EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *) mRuntimeSmbiosEntryPoint;\r
802 \r
803 //\r
804 // Copy SMBIOS Entry Point Structure\r
805 //\r
806 CopyMem (\r
807 (VOID *)(UINTN) mReserveSmbiosEntryPoint,\r
808 EntryPointStructure,\r
809 EntryPointStructure->EntryPointLength\r
810 );\r
811 \r
812 //\r
813 // Copy SMBIOS Structure Table into EfiReservedMemoryType memory\r
814 //\r
815 CopyMem (\r
816 (VOID *)(UINTN) mStructureTableAddress,\r
817 (VOID *)(UINTN) EntryPointStructure->TableAddress,\r
818 EntryPointStructure->TableLength\r
819 );\r
820 \r
821 //\r
822 // Update TableAddress in Entry Point Structure\r
823 //\r
824 EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *)(UINTN) mReserveSmbiosEntryPoint;\r
825 EntryPointStructure->TableAddress = (UINT32)(UINTN) mStructureTableAddress;\r
826 \r
827 //\r
828 // Fixup checksums in the Entry Point Structure\r
829 //\r
830 EntryPointStructure->IntermediateChecksum = 0;\r
831 EntryPointStructure->EntryPointStructureChecksum = 0;\r
832\r
833 EntryPointStructure->IntermediateChecksum = \r
834 CalculateCheckSum8 (\r
835 (UINT8 *) EntryPointStructure + OFFSET_OF (SMBIOS_TABLE_ENTRY_POINT, IntermediateAnchorString), \r
836 EntryPointStructure->EntryPointLength - OFFSET_OF (SMBIOS_TABLE_ENTRY_POINT, IntermediateAnchorString)\r
837 );\r
838 EntryPointStructure->EntryPointStructureChecksum =\r
839 CalculateCheckSum8 ((UINT8 *) EntryPointStructure, EntryPointStructure->EntryPointLength);\r
840}\r
bcecde14 841\r
842/**\r
843 Assign drive number to legacy HDD drives prior to booting an EFI\r
844 aware OS so the OS can access drives without an EFI driver.\r
845 Note: BBS compliant drives ARE NOT available until this call by\r
846 either shell or EFI.\r
847\r
848 @param This Protocol instance pointer.\r
849\r
850 @retval EFI_SUCCESS Drive numbers assigned\r
851\r
852**/\r
853EFI_STATUS\r
854GenericLegacyBoot (\r
855 IN EFI_LEGACY_BIOS_PROTOCOL *This\r
856 )\r
857{\r
858 EFI_STATUS Status;\r
859 LEGACY_BIOS_INSTANCE *Private;\r
860 EFI_IA32_REGISTER_SET Regs;\r
861 EFI_TO_COMPATIBILITY16_BOOT_TABLE *EfiToLegacy16BootTable;\r
862 EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *LegacyBiosPlatform;\r
863 UINTN CopySize;\r
864 VOID *AcpiPtr;\r
865 HDD_INFO *HddInfo;\r
866 HDD_INFO *LocalHddInfo;\r
867 UINTN Index;\r
868 EFI_COMPATIBILITY16_TABLE *Legacy16Table;\r
869 UINT32 *BdaPtr;\r
870 UINT16 HddCount;\r
871 UINT16 BbsCount;\r
872 BBS_TABLE *LocalBbsTable;\r
873 UINT32 *BaseVectorMaster;\r
874 EFI_TIME BootTime;\r
875 UINT32 LocalTime;\r
876 EFI_HANDLE IdeController;\r
877 UINTN HandleCount;\r
878 EFI_HANDLE *HandleBuffer;\r
bcecde14 879 VOID *AcpiTable;\r
880 UINTN ShadowAddress;\r
881 UINT32 Granularity;\r
bcecde14 882\r
883 LocalHddInfo = NULL;\r
884 HddCount = 0;\r
885 BbsCount = 0;\r
886 LocalBbsTable = NULL;\r
bcecde14 887\r
888 Private = LEGACY_BIOS_INSTANCE_FROM_THIS (This);\r
889 DEBUG_CODE (\r
890 DEBUG ((EFI_D_ERROR, "Start of legacy boot\n"));\r
891 );\r
892\r
893 Legacy16Table = Private->Legacy16Table;\r
894 EfiToLegacy16BootTable = &Private->IntThunk->EfiToLegacy16BootTable;\r
895 HddInfo = &EfiToLegacy16BootTable->HddInfo[0];\r
896\r
897 LegacyBiosPlatform = Private->LegacyBiosPlatform;\r
898\r
899 EfiToLegacy16BootTable->MajorVersion = EFI_TO_LEGACY_MAJOR_VERSION;\r
900 EfiToLegacy16BootTable->MinorVersion = EFI_TO_LEGACY_MINOR_VERSION;\r
bcecde14 901 \r
902 //\r
903 // If booting to a legacy OS then force HDD drives to the appropriate\r
904 // boot mode by calling GetIdeHandle.\r
905 // A reconnect -r can force all HDDs back to native mode.\r
906 //\r
907 IdeController = NULL;\r
908 if ((mBootMode == BOOT_LEGACY_OS) || (mBootMode == BOOT_UNCONVENTIONAL_DEVICE)) {\r
909 Status = LegacyBiosPlatform->GetPlatformHandle (\r
910 Private->LegacyBiosPlatform,\r
911 EfiGetPlatformIdeHandle,\r
912 0,\r
913 &HandleBuffer,\r
914 &HandleCount,\r
915 NULL\r
916 );\r
917 if (!EFI_ERROR (Status)) {\r
918 IdeController = HandleBuffer[0];\r
919 } \r
920 }\r
921 //\r
922 // Unlock the Legacy BIOS region\r
923 //\r
924 Private->LegacyRegion->UnLock (\r
925 Private->LegacyRegion,\r
926 0xE0000,\r
927 0x20000,\r
928 &Granularity\r
929 );\r
930\r
931 //\r
932 // Reconstruct the Legacy16 boot memory map\r
933 //\r
934 LegacyBiosBuildE820 (Private, &CopySize);\r
935 if (CopySize > Private->Legacy16Table->E820Length) {\r
936 ZeroMem (&Regs, sizeof (EFI_IA32_REGISTER_SET));\r
937 Regs.X.AX = Legacy16GetTableAddress;\r
938 Regs.X.CX = (UINT16) CopySize;\r
939 Private->LegacyBios.FarCall86 (\r
940 &Private->LegacyBios,\r
941 Private->Legacy16Table->Compatibility16CallSegment,\r
942 Private->Legacy16Table->Compatibility16CallOffset,\r
943 &Regs,\r
944 NULL,\r
945 0\r
946 );\r
947\r
948 Private->Legacy16Table->E820Pointer = (UINT32) (Regs.X.DS * 16 + Regs.X.BX);\r
949 Private->Legacy16Table->E820Length = (UINT32) CopySize;\r
950 if (Regs.X.AX != 0) {\r
951 DEBUG ((EFI_D_ERROR, "Legacy16 E820 length insufficient\n"));\r
952 } else {\r
953 CopyMem (\r
954 (VOID *)(UINTN) Private->Legacy16Table->E820Pointer,\r
955 Private->E820Table,\r
956 CopySize\r
957 );\r
958 }\r
959 } else {\r
960 CopyMem (\r
961 (VOID *)(UINTN) Private->Legacy16Table->E820Pointer,\r
962 Private->E820Table,\r
963 CopySize\r
964 );\r
965 Private->Legacy16Table->E820Length = (UINT32) CopySize;\r
966 }\r
b6823730 967\r
bcecde14 968 //\r
969 // We do not ASSERT if SmbiosTable not found. It is possbile that a platform does not produce SmbiosTable.\r
970 //\r
b6823730 971 if (mReserveSmbiosEntryPoint == 0) {\r
bcecde14 972 DEBUG ((EFI_D_INFO, "Smbios table is not found!\n"));\r
973 }\r
b6823730
EL		 974 CreateSmbiosTableInReservedMemory ();\r
975 EfiToLegacy16BootTable->SmbiosTable = (UINT32)(UINTN)mReserveSmbiosEntryPoint;\r
bcecde14 976\r
977 AcpiTable = NULL;\r
978 Status = EfiGetSystemConfigurationTable (\r
979 &gEfiAcpi20TableGuid,\r
980 &AcpiTable\r
981 );\r
982 if (EFI_ERROR (Status)) {\r
983 Status = EfiGetSystemConfigurationTable (\r
984 &gEfiAcpi10TableGuid,\r
985 &AcpiTable\r
986 );\r
987 }\r
988 //\r
989 // We do not ASSERT if AcpiTable not found. It is possbile that a platform does not produce AcpiTable.\r
990 //\r
991 if (AcpiTable == NULL) {\r
992 DEBUG ((EFI_D_INFO, "ACPI table is not found!\n"));\r
993 }\r
994 EfiToLegacy16BootTable->AcpiTable = (UINT32)(UINTN)AcpiTable;\r
995\r
996 //\r
997 // Get RSD Ptr table rev at offset 15 decimal\r
998 // Rev = 0 Length is 20 decimal\r
999 // Rev != 0 Length is UINT32 at offset 20 decimal\r
1000 //\r
1001 if (AcpiTable != NULL) {\r
1002\r
1003 AcpiPtr = AcpiTable;\r
1004 if (*((UINT8 *) AcpiPtr + 15) == 0) {\r
1005 CopySize = 20;\r
1006 } else {\r
1007 AcpiPtr = ((UINT8 *) AcpiPtr + 20);\r
1008 CopySize = (*(UINT32 *) AcpiPtr);\r
1009 }\r
1010\r
1011 CopyMem (\r
1012 (VOID *)(UINTN) Private->Legacy16Table->AcpiRsdPtrPointer,\r
1013 AcpiTable,\r
1014 CopySize\r
1015 );\r
1016 }\r
1017 //\r
1018 // Make sure all PCI Interrupt Line register are programmed to match 8259\r
1019 //\r
1020 PciProgramAllInterruptLineRegisters (Private);\r
1021\r
1022 //\r
1023 // Unlock the Legacy BIOS region as PciProgramAllInterruptLineRegisters\r
1024 // can lock it.\r
1025 //\r
1026 Private->LegacyRegion->UnLock (\r
1027 Private->LegacyRegion,\r
1028 Private->BiosStart,\r
1029 Private->LegacyBiosImageSize,\r
1030 &Granularity\r
1031 );\r
1032\r
1033 //\r
1034 // Configure Legacy Device Magic\r
1035 //\r
1036 // Only do this code if booting legacy OS\r
1037 //\r
1038 if ((mBootMode == BOOT_LEGACY_OS) || (mBootMode == BOOT_UNCONVENTIONAL_DEVICE)) {\r
1039 UpdateSioData (Private);\r
1040 }\r
1041 //\r
1042 // Setup BDA and EBDA standard areas before Legacy Boot\r
1043 //\r
1044 LegacyBiosCompleteBdaBeforeBoot (Private);\r
1045 LegacyBiosCompleteStandardCmosBeforeBoot (Private);\r
1046\r
1047 //\r
1048 // We must build IDE data, if it hasn't been done, before PciShadowRoms\r
1049 // to insure EFI drivers are connected.\r
1050 //\r
1051 LegacyBiosBuildIdeData (Private, &HddInfo, 1);\r
1052 UpdateAllIdentifyDriveData (Private);\r
1053\r
1054 //\r
1055 // Clear IO BAR, if IDE controller in legacy mode.\r
1056 //\r
1057 InitLegacyIdeController (IdeController);\r
1058\r
1059 //\r
1060 // Generate number of ticks since midnight for BDA. DOS requires this\r
1061 // for its time. We have to make assumptions as to how long following\r
1062 // code takes since after PciShadowRoms PciIo is gone. Place result in\r
1063 // 40:6C-6F\r
1064 //\r
1065 // Adjust value by 1 second.\r
1066 //\r
1067 gRT->GetTime (&BootTime, NULL);\r
1068 LocalTime = BootTime.Hour * 3600 + BootTime.Minute * 60 + BootTime.Second;\r
1069 LocalTime += 1;\r
1070\r
1071 //\r
1072 // Multiply result by 18.2 for number of ticks since midnight.\r
1073 // Use 182/10 to avoid floating point math.\r
1074 //\r
1075 LocalTime = (LocalTime * 182) / 10;\r
1076 BdaPtr = (UINT32 *) (UINTN)0x46C;\r
1077 *BdaPtr = LocalTime;\r
1078\r
1079 //\r
1080 // Shadow PCI ROMs. We must do this near the end since this will kick\r
1081 // of Native EFI drivers that may be needed to collect info for Legacy16\r
1082 //\r
1083 // WARNING: PciIo is gone after this call.\r
1084 //\r
1085 PciShadowRoms (Private);\r
1086\r
1087 //\r
1088 // Shadow PXE base code, BIS etc.\r
1089 //\r
1090 Private->LegacyRegion->UnLock (Private->LegacyRegion, 0xc0000, 0x40000, &Granularity);\r
1091 ShadowAddress = Private->OptionRom;\r
1092 Private->LegacyBiosPlatform->PlatformHooks (\r
1093 Private->LegacyBiosPlatform,\r
1094 EfiPlatformHookShadowServiceRoms,\r
1095 0,\r
1096 0,\r
1097 &ShadowAddress,\r
1098 Legacy16Table,\r
1099 NULL\r
1100 );\r
1101 Private->OptionRom = (UINT32)ShadowAddress;\r
1102 //\r
1103 // Register Legacy SMI Handler\r
1104 //\r
1105 LegacyBiosPlatform->SmmInit (\r
1106 LegacyBiosPlatform,\r
1107 EfiToLegacy16BootTable\r
1108 );\r
1109\r
1110 //\r
1111 // Let platform code know the boot options\r
1112 //\r
1113 LegacyBiosGetBbsInfo (\r
1114 This,\r
1115 &HddCount,\r
1116 &LocalHddInfo,\r
1117 &BbsCount,\r
1118 &LocalBbsTable\r
1119 );\r
1120\r
7dad86fc
RN		 1121 DEBUG_CODE (\r
1122 PrintPciInterruptRegister ();\r
1123 PrintBbsTable (LocalBbsTable);\r
1124 PrintHddInfo (LocalHddInfo);\r
1125 );\r
bcecde14 1126 //\r
1127 // If drive wasn't spun up then BuildIdeData may have found new drives.\r
1128 // Need to update BBS boot priority.\r
1129 //\r
1130 for (Index = 0; Index < MAX_IDE_CONTROLLER; Index++) {\r
1131 if ((LocalHddInfo[Index].IdentifyDrive[0].Raw[0] != 0) &&\r
1132 (LocalBbsTable[2 * Index + 1].BootPriority == BBS_IGNORE_ENTRY)\r
1133 ) {\r
1134 LocalBbsTable[2 * Index + 1].BootPriority = BBS_UNPRIORITIZED_ENTRY;\r
1135 }\r
1136\r
1137 if ((LocalHddInfo[Index].IdentifyDrive[1].Raw[0] != 0) &&\r
1138 (LocalBbsTable[2 * Index + 2].BootPriority == BBS_IGNORE_ENTRY)\r
1139 ) {\r
1140 LocalBbsTable[2 * Index + 2].BootPriority = BBS_UNPRIORITIZED_ENTRY;\r
1141 }\r
1142 }\r
1143\r
1144 Private->LegacyRegion->UnLock (\r
1145 Private->LegacyRegion,\r
1146 0xc0000,\r
1147 0x40000,\r
1148 &Granularity\r
1149 );\r
1150\r
1151 LegacyBiosPlatform->PrepareToBoot (\r
1152 LegacyBiosPlatform,\r
1153 mBbsDevicePathPtr,\r
1154 mBbsTable,\r
1155 mLoadOptionsSize,\r
1156 mLoadOptions,\r
1157 (VOID *) &Private->IntThunk->EfiToLegacy16BootTable\r
1158 );\r
1159\r
1160 //\r
1161 // If no boot device return to BDS\r
1162 //\r
1163 if ((mBootMode == BOOT_LEGACY_OS) || (mBootMode == BOOT_UNCONVENTIONAL_DEVICE)) {\r
1164 for (Index = 0; Index < BbsCount; Index++){\r
1165 if ((LocalBbsTable[Index].BootPriority != BBS_DO_NOT_BOOT_FROM) &&\r
1166 (LocalBbsTable[Index].BootPriority != BBS_UNPRIORITIZED_ENTRY) &&\r
1167 (LocalBbsTable[Index].BootPriority != BBS_IGNORE_ENTRY)) {\r
1168 break;\r
1169 }\r
1170 }\r
1171 if (Index == BbsCount) {\r
1172 return EFI_DEVICE_ERROR;\r
1173 }\r
1174 }\r
1175 //\r
1176 // Let the Legacy16 code know the device path type for legacy boot\r
1177 //\r
1178 EfiToLegacy16BootTable->DevicePathType = mBbsDevicePathPtr->DeviceType;\r
1179\r
1180 //\r
1181 // Copy MP table, if it exists.\r
1182 //\r
1183 LegacyGetDataOrTable (This, EfiGetPlatformBinaryMpTable);\r
1184\r
1185 if (!Private->LegacyBootEntered) {\r
1186 //\r
1187 // Copy OEM INT Data, if it exists. Note: This code treats any data\r
1188 // as a bag of bits and knows nothing of the contents nor cares.\r
1189 // Contents are IBV specific.\r
1190 //\r
1191 LegacyGetDataOrTable (This, EfiGetPlatformBinaryOemIntData);\r
1192\r
1193 //\r
1194 // Copy OEM16 Data, if it exists.Note: This code treats any data\r
1195 // as a bag of bits and knows nothing of the contents nor cares.\r
1196 // Contents are IBV specific.\r
1197 //\r
1198 LegacyGetDataOrTable (This, EfiGetPlatformBinaryOem16Data);\r
1199\r
1200 //\r
1201 // Copy OEM32 Data, if it exists.Note: This code treats any data\r
1202 // as a bag of bits and knows nothing of the contents nor cares.\r
1203 // Contents are IBV specific.\r
1204 //\r
1205 LegacyGetDataOrTable (This, EfiGetPlatformBinaryOem32Data);\r
1206 }\r
1207\r
1208 //\r
1209 // Call into Legacy16 code to prepare for INT 19h\r
1210 //\r
1211 ZeroMem (&Regs, sizeof (EFI_IA32_REGISTER_SET));\r
1212 Regs.X.AX = Legacy16PrepareToBoot;\r
1213\r
1214 //\r
1215 // Pass in handoff data\r
1216 //\r
81c0d6e9 1217 Regs.X.ES = NORMALIZE_EFI_SEGMENT ((UINTN)EfiToLegacy16BootTable);\r
1218 Regs.X.BX = NORMALIZE_EFI_OFFSET ((UINTN)EfiToLegacy16BootTable);\r
bcecde14 1219\r
1220 Private->LegacyBios.FarCall86 (\r
1221 This,\r
1222 Private->Legacy16CallSegment,\r
1223 Private->Legacy16CallOffset,\r
1224 &Regs,\r
1225 NULL,\r
1226 0\r
1227 );\r
1228\r
1229 if (Regs.X.AX != 0) {\r
1230 return EFI_DEVICE_ERROR;\r
1231 }\r
1232 //\r
1233 // Lock the Legacy BIOS region\r
1234 //\r
1235 Private->LegacyRegion->Lock (\r
1236 Private->LegacyRegion,\r
1237 0xc0000,\r
1238 0x40000,\r
1239 &Granularity\r
1240 );\r
1241 //\r
1242 // Lock attributes of the Legacy Region if chipset supports\r
1243 //\r
1244 Private->LegacyRegion->BootLock (\r
1245 Private->LegacyRegion,\r
1246 0xc0000,\r
1247 0x40000,\r
1248 &Granularity\r
1249 );\r
1250\r
1251 //\r
1252 // Call into Legacy16 code to do the INT 19h\r
1253 //\r
1254 EnableAllControllers (Private);\r
1255 if ((mBootMode == BOOT_LEGACY_OS) || (mBootMode == BOOT_UNCONVENTIONAL_DEVICE)) {\r
cb38c322 1256 //\r
1257 // Report Status Code to indicate legacy boot event will be signalled\r
1258 //\r
1259 REPORT_STATUS_CODE (\r
1260 EFI_PROGRESS_CODE,\r
1261 (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_LEGACY_BOOT_EVENT)\r
1262 );\r
1263\r
bcecde14 1264 //\r
1265 // Signal all the events that are waiting on EVT_SIGNAL_LEGACY_BOOT\r
1266 //\r
1267 EfiSignalEventLegacyBoot ();\r
1268 DEBUG ((EFI_D_INFO, "Legacy INT19 Boot...\n"));\r
3512efa9 1269\r
1270 //\r
1271 // Disable DXE Timer while executing in real mode\r
bcecde14 1272 //\r
3512efa9 1273 Private->Timer->SetTimerPeriod (Private->Timer, 0);\r
1274 \r
bcecde14 1275 //\r
3512efa9 1276 // Save and disable interrupt of debug timer\r
1277 //\r
1278 SaveAndSetDebugTimerInterrupt (FALSE);\r
1279\r
bcecde14 1280\r
1281 //\r
1282 // Put the 8259 into its legacy mode by reprogramming the vector bases\r
1283 //\r
1284 Private->Legacy8259->SetVectorBase (Private->Legacy8259, LEGACY_MODE_BASE_VECTOR_MASTER, LEGACY_MODE_BASE_VECTOR_SLAVE);\r
1285 //\r
1286 // PC History\r
1287 // The original PC used INT8-F for master PIC. Since these mapped over\r
1288 // processor exceptions TIANO moved the master PIC to INT68-6F.\r
1289 // We need to set these back to the Legacy16 unexpected interrupt(saved\r
1290 // in LegacyBios.c) since some OS see that these have values different from\r
1291 // what is expected and invoke them. Since the legacy OS corrupts EFI\r
1292 // memory, there is no handler for these interrupts and OS blows up.\r
1293 //\r
1294 // We need to save the TIANO values for the rare case that the Legacy16\r
1295 // code cannot boot but knows memory hasn't been destroyed.\r
1296 //\r
1297 // To compound the problem, video takes over one of these INTS and must be\r
1298 // be left.\r
1299 // @bug - determine if video hooks INT(in which case we must find new\r
1300 // set of TIANO vectors) or takes it over.\r
1301 //\r
1302 //\r
1303 BaseVectorMaster = (UINT32 *) (sizeof (UINT32) * PROTECTED_MODE_BASE_VECTOR_MASTER);\r
1304 for (Index = 0; Index < 8; Index++) {\r
1305 Private->ThunkSavedInt[Index] = BaseVectorMaster[Index];\r
1306 if (Private->ThunkSeg == (UINT16) (BaseVectorMaster[Index] >> 16)) {\r
1307 BaseVectorMaster[Index] = (UINT32) (Private->BiosUnexpectedInt);\r
1308 }\r
1309 }\r
1310\r
1311 ZeroMem (&Regs, sizeof (EFI_IA32_REGISTER_SET));\r
1312 Regs.X.AX = Legacy16Boot;\r
1313\r
1314 Private->LegacyBios.FarCall86 (\r
1315 This,\r
1316 Private->Legacy16CallSegment,\r
1317 Private->Legacy16CallOffset,\r
1318 &Regs,\r
1319 NULL,\r
1320 0\r
1321 );\r
1322\r
1323 BaseVectorMaster = (UINT32 *) (sizeof (UINT32) * PROTECTED_MODE_BASE_VECTOR_MASTER);\r
1324 for (Index = 0; Index < 8; Index++) {\r
1325 BaseVectorMaster[Index] = Private->ThunkSavedInt[Index];\r
1326 }\r
1327 }\r
1328 Private->LegacyBootEntered = TRUE;\r
1329 if ((mBootMode == BOOT_LEGACY_OS) || (mBootMode == BOOT_UNCONVENTIONAL_DEVICE)) {\r
1330 //\r
1331 // Should never return unless never passed control to 0:7c00(first stage\r
1332 // OS loader) and only then if no bootable device found.\r
1333 //\r
1334 return EFI_DEVICE_ERROR;\r
1335 } else {\r
1336 //\r
1337 // If boot to EFI then expect to return to caller\r
1338 //\r
1339 return EFI_SUCCESS;\r
1340 }\r
1341}\r
1342\r
1343\r
1344/**\r
1345 Assign drive number to legacy HDD drives prior to booting an EFI\r
1346 aware OS so the OS can access drives without an EFI driver.\r
1347 Note: BBS compliant drives ARE NOT available until this call by\r
1348 either shell or EFI.\r
1349\r
1350 @param This Protocol instance pointer.\r
1351 @param BbsCount Number of BBS_TABLE structures\r
1352 @param BbsTable List BBS entries\r
1353\r
1354 @retval EFI_SUCCESS Drive numbers assigned\r
1355\r
1356**/\r
1357EFI_STATUS\r
1358EFIAPI\r
1359LegacyBiosPrepareToBootEfi (\r
1360 IN EFI_LEGACY_BIOS_PROTOCOL *This,\r
1361 OUT UINT16 *BbsCount,\r
1362 OUT BBS_TABLE **BbsTable\r
1363 )\r
1364{\r
1365 EFI_STATUS Status;\r
1366 EFI_TO_COMPATIBILITY16_BOOT_TABLE *EfiToLegacy16BootTable;\r
1367 LEGACY_BIOS_INSTANCE *Private;\r
1368\r
1369 Private = LEGACY_BIOS_INSTANCE_FROM_THIS (This);\r
1370 EfiToLegacy16BootTable = &Private->IntThunk->EfiToLegacy16BootTable;\r
1371 mBootMode = BOOT_EFI_OS;\r
1372 mBbsDevicePathPtr = NULL;\r
1373 Status = GenericLegacyBoot (This);\r
1374 *BbsTable = (BBS_TABLE*)(UINTN)EfiToLegacy16BootTable->BbsTable;\r
1375 *BbsCount = (UINT16) (sizeof (Private->IntThunk->BbsTable) / sizeof (BBS_TABLE));\r
1376 return Status;\r
1377}\r
1378\r
1379/**\r
1380 To boot from an unconventional device like parties and/or execute HDD diagnostics.\r
1381\r
1382 @param This Protocol instance pointer.\r
1383 @param Attributes How to interpret the other input parameters\r
1384 @param BbsEntry The 0-based index into the BbsTable for the parent\r
1385 device.\r
1386 @param BeerData Pointer to the 128 bytes of ram BEER data.\r
1387 @param ServiceAreaData Pointer to the 64 bytes of raw Service Area data. The\r
1388 caller must provide a pointer to the specific Service\r
1389 Area and not the start all Service Areas.\r
1390\r
1391 @retval EFI_INVALID_PARAMETER if error. Does NOT return if no error.\r
1392\r
1393***/\r
1394EFI_STATUS\r
1395EFIAPI\r
1396LegacyBiosBootUnconventionalDevice (\r
1397 IN EFI_LEGACY_BIOS_PROTOCOL *This,\r
1398 IN UDC_ATTRIBUTES Attributes,\r
1399 IN UINTN BbsEntry,\r
1400 IN VOID *BeerData,\r
1401 IN VOID *ServiceAreaData\r
1402 )\r
1403{\r
1404 EFI_STATUS Status;\r
1405 EFI_TO_COMPATIBILITY16_BOOT_TABLE *EfiToLegacy16BootTable;\r
1406 LEGACY_BIOS_INSTANCE *Private;\r
1407 UD_TABLE *UcdTable;\r
1408 UINTN Index;\r
1409 UINT16 BootPriority;\r
1410 BBS_TABLE *BbsTable;\r
1411\r
1412 BootPriority = 0;\r
1413 Private = LEGACY_BIOS_INSTANCE_FROM_THIS (This);\r
1414 mBootMode = BOOT_UNCONVENTIONAL_DEVICE;\r
1415 mBbsDevicePathPtr = &mBbsDevicePathNode;\r
1416 mAttributes = Attributes;\r
1417 mBbsEntry = BbsEntry;\r
1418 mBeerData = BeerData, mServiceAreaData = ServiceAreaData;\r
1419\r
1420 EfiToLegacy16BootTable = &Private->IntThunk->EfiToLegacy16BootTable;\r
1421\r
1422 //\r
1423 // Do input parameter checking\r
1424 //\r
1425 if ((Attributes.DirectoryServiceValidity == 0) &&\r
1426 (Attributes.RabcaUsedFlag == 0) &&\r
1427 (Attributes.ExecuteHddDiagnosticsFlag == 0)\r
1428 ) {\r
1429 return EFI_INVALID_PARAMETER;\r
1430 }\r
1431\r
1432 if (((Attributes.DirectoryServiceValidity != 0) && (ServiceAreaData == NULL)) ||\r
1433 (((Attributes.DirectoryServiceValidity | Attributes.RabcaUsedFlag) != 0) && (BeerData == NULL))\r
1434 ) {\r
1435 return EFI_INVALID_PARAMETER;\r
1436 }\r
1437\r
1438 UcdTable = (UD_TABLE *) AllocatePool (\r
1439 sizeof (UD_TABLE)\r
1440 );\r
1441 if (NULL == UcdTable) {\r
1442 return EFI_OUT_OF_RESOURCES;\r
1443 }\r
1444\r
1445 EfiToLegacy16BootTable->UnconventionalDeviceTable = (UINT32)(UINTN)UcdTable;\r
1446 UcdTable->Attributes = Attributes;\r
1447 UcdTable->BbsTableEntryNumberForParentDevice = (UINT8) BbsEntry;\r
1448 //\r
1449 // Force all existing BBS entries to DoNotBoot. This allows 16-bit CSM\r
1450 // to assign drive numbers but bot boot from. Only newly created entries\r
1451 // will be valid.\r
1452 //\r
1453 BbsTable = (BBS_TABLE*)(UINTN)EfiToLegacy16BootTable->BbsTable;\r
1454 for (Index = 0; Index < EfiToLegacy16BootTable->NumberBbsEntries; Index++) {\r
1455 BbsTable[Index].BootPriority = BBS_DO_NOT_BOOT_FROM;\r
1456 }\r
1457 //\r
1458 // If parent is onboard IDE then assign controller & device number\r
1459 // else they are 0.\r
1460 //\r
1461 if (BbsEntry < MAX_IDE_CONTROLLER * 2) {\r
1462 UcdTable->DeviceNumber = (UINT8) ((BbsEntry - 1) % 2);\r
1463 }\r
1464\r
1465 if (BeerData != NULL) {\r
1466 CopyMem (\r
1467 (VOID *) UcdTable->BeerData,\r
1468 BeerData,\r
1469 (UINTN) 128\r
1470 );\r
1471 }\r
1472\r
1473 if (ServiceAreaData != NULL) {\r
1474 CopyMem (\r
1475 (VOID *) UcdTable->ServiceAreaData,\r
1476 ServiceAreaData,\r
1477 (UINTN) 64\r
1478 );\r
1479 }\r
1480 //\r
1481 // For each new entry do the following:\r
1482 // 1. Increment current number of BBS entries\r
1483 // 2. Copy parent entry to new entry.\r
1484 // 3. Zero out BootHandler Offset & segment\r
1485 // 4. Set appropriate device type. BEV(0x80) for HDD diagnostics\r
1486 // and Floppy(0x01) for PARTIES boot.\r
1487 // 5. Assign new priority.\r
1488 //\r
1489 if ((Attributes.ExecuteHddDiagnosticsFlag) != 0) {\r
1490 EfiToLegacy16BootTable->NumberBbsEntries += 1;\r
1491\r
1492 CopyMem (\r
1493 (VOID *) &BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].BootPriority,\r
1494 (VOID *) &BbsTable[BbsEntry].BootPriority,\r
1495 sizeof (BBS_TABLE)\r
1496 );\r
1497\r
1498 BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].BootHandlerOffset = 0;\r
1499 BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].BootHandlerSegment = 0;\r
1500 BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].DeviceType = 0x80;\r
1501\r
1502 UcdTable->BbsTableEntryNumberForHddDiag = (UINT8) (EfiToLegacy16BootTable->NumberBbsEntries - 1);\r
1503\r
1504 BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].BootPriority = BootPriority;\r
1505 BootPriority += 1;\r
1506\r
1507 //\r
1508 // Set device type as BBS_TYPE_DEV for PARTIES diagnostic\r
1509 //\r
1510 mBbsDevicePathNode.DeviceType = BBS_TYPE_BEV;\r
1511 }\r
1512\r
1513 if (((Attributes.DirectoryServiceValidity | Attributes.RabcaUsedFlag)) != 0) {\r
1514 EfiToLegacy16BootTable->NumberBbsEntries += 1;\r
1515 CopyMem (\r
1516 (VOID *) &BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].BootPriority,\r
1517 (VOID *) &BbsTable[BbsEntry].BootPriority,\r
1518 sizeof (BBS_TABLE)\r
1519 );\r
1520\r
1521 BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].BootHandlerOffset = 0;\r
1522 BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].BootHandlerSegment = 0;\r
1523 BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].DeviceType = 0x01;\r
1524 UcdTable->BbsTableEntryNumberForBoot = (UINT8) (EfiToLegacy16BootTable->NumberBbsEntries - 1);\r
1525 BbsTable[EfiToLegacy16BootTable->NumberBbsEntries].BootPriority = BootPriority;\r
1526\r
1527 //\r
1528 // Set device type as BBS_TYPE_FLOPPY for PARTIES boot as floppy\r
1529 //\r
1530 mBbsDevicePathNode.DeviceType = BBS_TYPE_FLOPPY;\r
1531 }\r
1532 //\r
1533 // Build the BBS Device Path for this boot selection\r
1534 //\r
1535 mBbsDevicePathNode.Header.Type = BBS_DEVICE_PATH;\r
1536 mBbsDevicePathNode.Header.SubType = BBS_BBS_DP;\r
1537 SetDevicePathNodeLength (&mBbsDevicePathNode.Header, sizeof (BBS_BBS_DEVICE_PATH));\r
1538 mBbsDevicePathNode.StatusFlag = 0;\r
1539 mBbsDevicePathNode.String[0] = 0;\r
1540\r
1541 Status = GenericLegacyBoot (This);\r
1542 return Status;\r
1543}\r
1544\r
1545/**\r
1546 Attempt to legacy boot the BootOption. If the EFI contexted has been\r
1547 compromised this function will not return.\r
1548\r
1549 @param This Protocol instance pointer.\r
1550 @param BbsDevicePath EFI Device Path from BootXXXX variable.\r
1551 @param LoadOptionsSize Size of LoadOption in size.\r
1552 @param LoadOptions LoadOption from BootXXXX variable\r
1553\r
1554 @retval EFI_SUCCESS Removable media not present\r
1555\r
1556**/\r
1557EFI_STATUS\r
1558EFIAPI\r
1559LegacyBiosLegacyBoot (\r
1560 IN EFI_LEGACY_BIOS_PROTOCOL *This,\r
1561 IN BBS_BBS_DEVICE_PATH *BbsDevicePath,\r
1562 IN UINT32 LoadOptionsSize,\r
1563 IN VOID *LoadOptions\r
1564 )\r
1565{\r
1566 EFI_STATUS Status;\r
1567\r
1568 mBbsDevicePathPtr = BbsDevicePath;\r
1569 mLoadOptionsSize = LoadOptionsSize;\r
1570 mLoadOptions = LoadOptions;\r
1571 mBootMode = BOOT_LEGACY_OS;\r
1572 Status = GenericLegacyBoot (This);\r
1573\r
1574 return Status;\r
1575}\r
1576\r
1577/**\r
1578 Convert EFI Memory Type to E820 Memory Type.\r
1579\r
1580 @param Type EFI Memory Type\r
1581\r
1582 @return ACPI Memory Type for EFI Memory Type\r
1583\r
1584**/\r
1585EFI_ACPI_MEMORY_TYPE\r
1586EfiMemoryTypeToE820Type (\r
1587 IN UINT32 Type\r
1588 )\r
1589{\r
1590 switch (Type) {\r
1591 case EfiLoaderCode:\r
1592 case EfiLoaderData:\r
1593 case EfiBootServicesCode:\r
1594 case EfiBootServicesData:\r
1595 case EfiConventionalMemory:\r
1596 case EfiRuntimeServicesCode:\r
1597 case EfiRuntimeServicesData:\r
1598 return EfiAcpiAddressRangeMemory;\r
1599\r
1600 case EfiACPIReclaimMemory:\r
1601 return EfiAcpiAddressRangeACPI;\r
1602\r
1603 case EfiACPIMemoryNVS:\r
1604 return EfiAcpiAddressRangeNVS;\r
1605\r
1606 //\r
1607 // All other types map to reserved.\r
1608 // Adding the code just waists FLASH space.\r
1609 //\r
1610 // case EfiReservedMemoryType:\r
1611 // case EfiUnusableMemory:\r
1612 // case EfiMemoryMappedIO:\r
1613 // case EfiMemoryMappedIOPortSpace:\r
1614 // case EfiPalCode:\r
1615 //\r
1616 default:\r
1617 return EfiAcpiAddressRangeReserved;\r
1618 }\r
1619}\r
1620\r
1621/**\r
1622 Build the E820 table.\r
1623\r
1624 @param Private Legacy BIOS Instance data\r
1625 @param Size Size of E820 Table\r
1626\r
1627 @retval EFI_SUCCESS It should always work.\r
1628\r
1629**/\r
1630EFI_STATUS\r
1631LegacyBiosBuildE820 (\r
1632 IN LEGACY_BIOS_INSTANCE *Private,\r
1633 OUT UINTN *Size\r
1634 )\r
1635{\r
1636 EFI_STATUS Status;\r
1637 EFI_E820_ENTRY64 *E820Table;\r
1638 EFI_MEMORY_DESCRIPTOR *EfiMemoryMap;\r
1639 EFI_MEMORY_DESCRIPTOR *EfiMemoryMapEnd;\r
1640 EFI_MEMORY_DESCRIPTOR *EfiEntry;\r
1641 EFI_MEMORY_DESCRIPTOR *NextEfiEntry;\r
1642 EFI_MEMORY_DESCRIPTOR TempEfiEntry;\r
1643 UINTN EfiMemoryMapSize;\r
1644 UINTN EfiMapKey;\r
1645 UINTN EfiDescriptorSize;\r
1646 UINT32 EfiDescriptorVersion;\r
1647 UINTN Index;\r
1648 EFI_PEI_HOB_POINTERS Hob;\r
1649 EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;\r
1650 UINTN TempIndex;\r
1651 UINTN IndexSort;\r
1652 UINTN TempNextIndex;\r
1653 EFI_E820_ENTRY64 TempE820;\r
1654 EFI_ACPI_MEMORY_TYPE TempType;\r
1655 BOOLEAN ChangedFlag;\r
1656 UINTN Above1MIndex;\r
1657 UINT64 MemoryBlockLength;\r
1658\r
1659 E820Table = (EFI_E820_ENTRY64 *) Private->E820Table;\r
1660\r
1661 //\r
1662 // Get the EFI memory map.\r
1663 //\r
1664 EfiMemoryMapSize = 0;\r
1665 EfiMemoryMap = NULL;\r
1666 Status = gBS->GetMemoryMap (\r
1667 &EfiMemoryMapSize,\r
1668 EfiMemoryMap,\r
1669 &EfiMapKey,\r
1670 &EfiDescriptorSize,\r
1671 &EfiDescriptorVersion\r
1672 );\r
1673 ASSERT (Status == EFI_BUFFER_TOO_SMALL);\r
1674\r
1675 do {\r
1676 //\r
1677 // Use size returned back plus 1 descriptor for the AllocatePool.\r
1678 // We don't just multiply by 2 since the "for" loop below terminates on\r
1679 // EfiMemoryMapEnd which is dependent upon EfiMemoryMapSize. Otherwize\r
1680 // we process bogus entries and create bogus E820 entries.\r
1681 //\r
1682 EfiMemoryMap = (EFI_MEMORY_DESCRIPTOR *) AllocatePool (EfiMemoryMapSize);\r
1683 ASSERT (EfiMemoryMap != NULL);\r
1684 Status = gBS->GetMemoryMap (\r
1685 &EfiMemoryMapSize,\r
1686 EfiMemoryMap,\r
1687 &EfiMapKey,\r
1688 &EfiDescriptorSize,\r
1689 &EfiDescriptorVersion\r
1690 );\r
1691 if (EFI_ERROR (Status)) {\r
1692 FreePool (EfiMemoryMap);\r
1693 }\r
1694 } while (Status == EFI_BUFFER_TOO_SMALL);\r
1695\r
1696 ASSERT_EFI_ERROR (Status);\r
1697\r
1698 //\r
1699 // Punch in the E820 table for memory less than 1 MB.\r
1700 // Assume ZeroMem () has been done on data structure.\r
1701 //\r
1702 //\r
1703 // First entry is 0 to (640k - EBDA)\r
1704 //\r
1705 E820Table[0].BaseAddr = 0;\r
1706 E820Table[0].Length = (UINT64) ((*(UINT16 *) (UINTN)0x40E) << 4);\r
1707 E820Table[0].Type = EfiAcpiAddressRangeMemory;\r
1708\r
1709 //\r
1710 // Second entry is (640k - EBDA) to 640k\r
1711 //\r
1712 E820Table[1].BaseAddr = E820Table[0].Length;\r
1713 E820Table[1].Length = (UINT64) ((640 * 1024) - E820Table[0].Length);\r
1714 E820Table[1].Type = EfiAcpiAddressRangeReserved;\r
1715\r
1716 //\r
1717 // Third Entry is legacy BIOS\r
1718 // DO NOT CLAIM region from 0xA0000-0xDFFFF. OS can use free areas\r
1719 // to page in memory under 1MB.\r
1720 // Omit region from 0xE0000 to start of BIOS, if any. This can be\r
1721 // used for a multiple reasons including OPROMS.\r
1722 //\r
1723\r
1724 //\r
1725 // The CSM binary image size is not the actually size that CSM binary used,\r
1726 // to avoid memory corrupt, we declare the 0E0000 - 0FFFFF is used by CSM binary.\r
1727 //\r
1728 E820Table[2].BaseAddr = 0xE0000;\r
1729 E820Table[2].Length = 0x20000;\r
1730 E820Table[2].Type = EfiAcpiAddressRangeReserved;\r
1731\r
1732 Above1MIndex = 2;\r
1733\r
1734 //\r
1735 // Process the EFI map to produce E820 map;\r
1736 //\r
1737\r
1738 //\r
1739 // Sort memory map from low to high\r
1740 //\r
1741 EfiEntry = EfiMemoryMap;\r
1742 NextEfiEntry = NEXT_MEMORY_DESCRIPTOR (EfiEntry, EfiDescriptorSize);\r
1743 EfiMemoryMapEnd = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) EfiMemoryMap + EfiMemoryMapSize);\r
1744 while (EfiEntry < EfiMemoryMapEnd) {\r
1745 while (NextEfiEntry < EfiMemoryMapEnd) {\r
1746 if (EfiEntry->PhysicalStart > NextEfiEntry->PhysicalStart) {\r
1747 CopyMem (&TempEfiEntry, EfiEntry, sizeof (EFI_MEMORY_DESCRIPTOR));\r
1748 CopyMem (EfiEntry, NextEfiEntry, sizeof (EFI_MEMORY_DESCRIPTOR));\r
1749 CopyMem (NextEfiEntry, &TempEfiEntry, sizeof (EFI_MEMORY_DESCRIPTOR));\r
1750 }\r
1751\r
1752 NextEfiEntry = NEXT_MEMORY_DESCRIPTOR (NextEfiEntry, EfiDescriptorSize);\r
1753 }\r
1754\r
1755 EfiEntry = NEXT_MEMORY_DESCRIPTOR (EfiEntry, EfiDescriptorSize);\r
1756 NextEfiEntry = NEXT_MEMORY_DESCRIPTOR (EfiEntry, EfiDescriptorSize);\r
1757 }\r
1758\r
1759 EfiEntry = EfiMemoryMap;\r
1760 EfiMemoryMapEnd = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) EfiMemoryMap + EfiMemoryMapSize);\r
1761 for (Index = Above1MIndex; (EfiEntry < EfiMemoryMapEnd) && (Index < EFI_MAX_E820_ENTRY - 1); ) {\r
1762 MemoryBlockLength = (UINT64) (LShiftU64 (EfiEntry->NumberOfPages, 12));\r
1763 if ((EfiEntry->PhysicalStart + MemoryBlockLength) < 0x100000) {\r
1764 //\r
1765 // Skip the memory block is under 1MB\r
1766 //\r
1767 } else {\r
1768 if (EfiEntry->PhysicalStart < 0x100000) {\r
1769 //\r
1770 // When the memory block spans below 1MB, ensure the memory block start address is at least 1MB\r
1771 //\r
1772 MemoryBlockLength -= 0x100000 - EfiEntry->PhysicalStart;\r
1773 EfiEntry->PhysicalStart = 0x100000;\r
1774 }\r
1775\r
1776 //\r
1777 // Convert memory type to E820 type\r
1778 //\r
1779 TempType = EfiMemoryTypeToE820Type (EfiEntry->Type);\r
1780\r
1781 if ((E820Table[Index].Type == TempType) && (EfiEntry->PhysicalStart == (E820Table[Index].BaseAddr + E820Table[Index].Length))) {\r
1782 //\r
1783 // Grow an existing entry\r
1784 //\r
1785 E820Table[Index].Length += MemoryBlockLength;\r
1786 } else {\r
1787 //\r
1788 // Make a new entry\r
1789 //\r
1790 ++Index;\r
1791 E820Table[Index].BaseAddr = EfiEntry->PhysicalStart;\r
1792 E820Table[Index].Length = MemoryBlockLength;\r
1793 E820Table[Index].Type = TempType;\r
1794 }\r
1795 }\r
1796 EfiEntry = NEXT_MEMORY_DESCRIPTOR (EfiEntry, EfiDescriptorSize);\r
1797 }\r
1798\r
1799 FreePool (EfiMemoryMap);\r
1800\r
1801 //\r
1802 // Process the reserved memory map to produce E820 map ;\r
1803 //\r
1804 for (Hob.Raw = GetHobList (); !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob)) {\r
1805 if (Hob.Raw != NULL && GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
1806 ResourceHob = Hob.ResourceDescriptor;\r
1807 if (((ResourceHob->ResourceType == EFI_RESOURCE_MEMORY_MAPPED_IO) ||\r
1808 (ResourceHob->ResourceType == EFI_RESOURCE_FIRMWARE_DEVICE) ||\r
1809 (ResourceHob->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) ) &&\r
1810 (ResourceHob->PhysicalStart > 0x100000) &&\r
1811 (Index < EFI_MAX_E820_ENTRY - 1)) {\r
1812 ++Index;\r
1813 E820Table[Index].BaseAddr = ResourceHob->PhysicalStart;\r
1814 E820Table[Index].Length = ResourceHob->ResourceLength;\r
1815 E820Table[Index].Type = EfiAcpiAddressRangeReserved;\r
1816 }\r
1817 }\r
1818 }\r
1819\r
1820 Index ++;\r
1821 Private->IntThunk->EfiToLegacy16InitTable.NumberE820Entries = (UINT32)Index;\r
1822 Private->IntThunk->EfiToLegacy16BootTable.NumberE820Entries = (UINT32)Index;\r
1823 Private->NumberE820Entries = (UINT32)Index;\r
1824 *Size = (UINTN) (Index * sizeof (EFI_E820_ENTRY64));\r
1825\r
1826 //\r
1827 // Sort E820Table from low to high\r
1828 //\r
1829 for (TempIndex = 0; TempIndex < Index; TempIndex++) {\r
1830 ChangedFlag = FALSE;\r
1831 for (TempNextIndex = 1; TempNextIndex < Index - TempIndex; TempNextIndex++) {\r
1832 if (E820Table[TempNextIndex - 1].BaseAddr > E820Table[TempNextIndex].BaseAddr) {\r
1833 ChangedFlag = TRUE;\r
1834 TempE820.BaseAddr = E820Table[TempNextIndex - 1].BaseAddr;\r
1835 TempE820.Length = E820Table[TempNextIndex - 1].Length;\r
1836 TempE820.Type = E820Table[TempNextIndex - 1].Type;\r
1837\r
1838 E820Table[TempNextIndex - 1].BaseAddr = E820Table[TempNextIndex].BaseAddr;\r
1839 E820Table[TempNextIndex - 1].Length = E820Table[TempNextIndex].Length;\r
1840 E820Table[TempNextIndex - 1].Type = E820Table[TempNextIndex].Type;\r
1841\r
1842 E820Table[TempNextIndex].BaseAddr = TempE820.BaseAddr;\r
1843 E820Table[TempNextIndex].Length = TempE820.Length;\r
1844 E820Table[TempNextIndex].Type = TempE820.Type;\r
1845 }\r
1846 }\r
1847\r
1848 if (!ChangedFlag) {\r
1849 break;\r
1850 }\r
1851 }\r
1852\r
1853 //\r
1854 // Remove the overlap range\r
1855 //\r
1856 for (TempIndex = 1; TempIndex < Index; TempIndex++) {\r
1857 if (E820Table[TempIndex - 1].BaseAddr <= E820Table[TempIndex].BaseAddr &&\r
1858 ((E820Table[TempIndex - 1].BaseAddr + E820Table[TempIndex - 1].Length) >=\r
1859 (E820Table[TempIndex].BaseAddr +E820Table[TempIndex].Length))) {\r
1860 //\r
1861 //Overlap range is found\r
1862 //\r
1863 ASSERT (E820Table[TempIndex - 1].Type == E820Table[TempIndex].Type);\r
1864\r
1865 if (TempIndex == Index - 1) {\r
1866 E820Table[TempIndex].BaseAddr = 0;\r
1867 E820Table[TempIndex].Length = 0;\r
1868 E820Table[TempIndex].Type = (EFI_ACPI_MEMORY_TYPE) 0;\r
1869 Index--;\r
1870 break;\r
1871 } else {\r
1872 for (IndexSort = TempIndex; IndexSort < Index - 1; IndexSort ++) {\r
1873 E820Table[IndexSort].BaseAddr = E820Table[IndexSort + 1].BaseAddr;\r
1874 E820Table[IndexSort].Length = E820Table[IndexSort + 1].Length;\r
1875 E820Table[IndexSort].Type = E820Table[IndexSort + 1].Type;\r
1876 }\r
1877 Index--;\r
1878 }\r
1879 }\r
1880 }\r
1881\r
1882\r
1883\r
1884 Private->IntThunk->EfiToLegacy16InitTable.NumberE820Entries = (UINT32)Index;\r
1885 Private->IntThunk->EfiToLegacy16BootTable.NumberE820Entries = (UINT32)Index;\r
1886 Private->NumberE820Entries = (UINT32)Index;\r
1887 *Size = (UINTN) (Index * sizeof (EFI_E820_ENTRY64));\r
1888\r
1889 //\r
1890 // Determine OS usable memory above 1Mb\r
1891 //\r
1892 Private->IntThunk->EfiToLegacy16BootTable.OsMemoryAbove1Mb = 0x0000;\r
1893 for (TempIndex = Above1MIndex; TempIndex < Index; TempIndex++) {\r
1894 if (E820Table[TempIndex].BaseAddr >= 0x100000 && E820Table[TempIndex].BaseAddr < 0x100000000ULL) { // not include above 4G memory\r
1895 //\r
1896 // ACPIReclaimMemory is also usable memory for ACPI OS, after OS dumps all ACPI tables.\r
1897 //\r
1898 if ((E820Table[TempIndex].Type == EfiAcpiAddressRangeMemory) || (E820Table[TempIndex].Type == EfiAcpiAddressRangeACPI)) {\r
1899 Private->IntThunk->EfiToLegacy16BootTable.OsMemoryAbove1Mb += (UINT32) (E820Table[TempIndex].Length);\r
1900 } else {\r
1901 break; // break at first not normal memory, because SMM may use reserved memory.\r
1902 }\r
1903 }\r
1904 }\r
1905\r
1906 Private->IntThunk->EfiToLegacy16InitTable.OsMemoryAbove1Mb = Private->IntThunk->EfiToLegacy16BootTable.OsMemoryAbove1Mb;\r
1907\r
1908 //\r
1909 // Print DEBUG information\r
1910 //\r
1911 for (TempIndex = 0; TempIndex < Index; TempIndex++) {\r
1912 DEBUG((EFI_D_INFO, "E820[%2d]: 0x%16lx ---- 0x%16lx, Type = 0x%x \n",\r
1913 TempIndex,\r
1914 E820Table[TempIndex].BaseAddr,\r
1915 (E820Table[TempIndex].BaseAddr + E820Table[TempIndex].Length),\r
1916 E820Table[TempIndex].Type\r
1917 ));\r
1918 }\r
1919\r
1920 return EFI_SUCCESS;\r
1921}\r
1922\r
1923\r
1924/**\r
1925 Fill in the standard BDA and EBDA stuff prior to legacy Boot\r
1926\r
1927 @param Private Legacy BIOS Instance data\r
1928\r
1929 @retval EFI_SUCCESS It should always work.\r
1930\r
1931**/\r
1932EFI_STATUS\r
1933LegacyBiosCompleteBdaBeforeBoot (\r
1934 IN LEGACY_BIOS_INSTANCE *Private\r
1935 )\r
1936{\r
1937 BDA_STRUC *Bda;\r
1938 UINT16 MachineConfig;\r
1939 DEVICE_PRODUCER_DATA_HEADER *SioPtr;\r
1940\r
1941 Bda = (BDA_STRUC *) ((UINTN) 0x400);\r
1942 MachineConfig = 0;\r
1943\r
1944 SioPtr = &(Private->IntThunk->EfiToLegacy16BootTable.SioData);\r
1945 Bda->Com1 = SioPtr->Serial[0].Address;\r
1946 Bda->Com2 = SioPtr->Serial[1].Address;\r
1947 Bda->Com3 = SioPtr->Serial[2].Address;\r
1948 Bda->Com4 = SioPtr->Serial[3].Address;\r
1949\r
1950 if (SioPtr->Serial[0].Address != 0x00) {\r
1951 MachineConfig += 0x200;\r
1952 }\r
1953\r
1954 if (SioPtr->Serial[1].Address != 0x00) {\r
1955 MachineConfig += 0x200;\r
1956 }\r
1957\r
1958 if (SioPtr->Serial[2].Address != 0x00) {\r
1959 MachineConfig += 0x200;\r
1960 }\r
1961\r
1962 if (SioPtr->Serial[3].Address != 0x00) {\r
1963 MachineConfig += 0x200;\r
1964 }\r
1965\r
1966 Bda->Lpt1 = SioPtr->Parallel[0].Address;\r
1967 Bda->Lpt2 = SioPtr->Parallel[1].Address;\r
1968 Bda->Lpt3 = SioPtr->Parallel[2].Address;\r
1969\r
1970 if (SioPtr->Parallel[0].Address != 0x00) {\r
1971 MachineConfig += 0x4000;\r
1972 }\r
1973\r
1974 if (SioPtr->Parallel[1].Address != 0x00) {\r
1975 MachineConfig += 0x4000;\r
1976 }\r
1977\r
1978 if (SioPtr->Parallel[2].Address != 0x00) {\r
1979 MachineConfig += 0x4000;\r
1980 }\r
1981\r
1982 Bda->NumberOfDrives = (UINT8) (Bda->NumberOfDrives + Private->IdeDriveCount);\r
1983 if (SioPtr->Floppy.NumberOfFloppy != 0x00) {\r
1984 MachineConfig = (UINT16) (MachineConfig + 0x01 + (SioPtr->Floppy.NumberOfFloppy - 1) * 0x40);\r
1985 Bda->FloppyXRate = 0x07;\r
1986 }\r
1987\r
1988 Bda->Lpt1_2Timeout = 0x1414;\r
1989 Bda->Lpt3_4Timeout = 0x1414;\r
1990 Bda->Com1_2Timeout = 0x0101;\r
1991 Bda->Com3_4Timeout = 0x0101;\r
1992\r
1993 //\r
1994 // Force VGA and Coprocessor, indicate 101/102 keyboard\r
1995 //\r
1996 MachineConfig = (UINT16) (MachineConfig + 0x00 + 0x02 + (SioPtr->MousePresent * 0x04));\r
1997 Bda->MachineConfig = MachineConfig;\r
1998\r
1999 return EFI_SUCCESS;\r
2000}\r
2001\r
2002/**\r
2003 Fill in the standard BDA for Keyboard LEDs\r
2004\r
2005 @param This Protocol instance pointer.\r
2006 @param Leds Current LED status\r
2007\r
2008 @retval EFI_SUCCESS It should always work.\r
2009\r
2010**/\r
2011EFI_STATUS\r
2012EFIAPI\r
2013LegacyBiosUpdateKeyboardLedStatus (\r
2014 IN EFI_LEGACY_BIOS_PROTOCOL *This,\r
2015 IN UINT8 Leds\r
2016 )\r
2017{\r
2018 LEGACY_BIOS_INSTANCE *Private;\r
2019 BDA_STRUC *Bda;\r
2020 UINT8 LocalLeds;\r
2021 EFI_IA32_REGISTER_SET Regs;\r
2022\r
2023 Bda = (BDA_STRUC *) ((UINTN) 0x400);\r
2024\r
2025 Private = LEGACY_BIOS_INSTANCE_FROM_THIS (This);\r
2026 LocalLeds = Leds;\r
2027 Bda->LedStatus = (UINT8) ((Bda->LedStatus &~0x07) | LocalLeds);\r
2028 LocalLeds = (UINT8) (LocalLeds << 4);\r
2029 Bda->ShiftStatus = (UINT8) ((Bda->ShiftStatus &~0x70) | LocalLeds);\r
2030 LocalLeds = (UINT8) (Leds & 0x20);\r
2031 Bda->KeyboardStatus = (UINT8) ((Bda->KeyboardStatus &~0x20) | LocalLeds);\r
2032 //\r
2033 // Call into Legacy16 code to allow it to do any processing\r
2034 //\r
2035 ZeroMem (&Regs, sizeof (EFI_IA32_REGISTER_SET));\r
2036 Regs.X.AX = Legacy16SetKeyboardLeds;\r
2037 Regs.H.CL = Leds;\r
2038\r
2039 Private->LegacyBios.FarCall86 (\r
2040 &Private->LegacyBios,\r
2041 Private->Legacy16Table->Compatibility16CallSegment,\r
2042 Private->Legacy16Table->Compatibility16CallOffset,\r
2043 &Regs,\r
2044 NULL,\r
2045 0\r
2046 );\r
2047\r
2048 return EFI_SUCCESS;\r
2049}\r
2050\r
2051\r
2052/**\r
2053 Fill in the standard CMOS stuff prior to legacy Boot\r
2054\r
2055 @param Private Legacy BIOS Instance data\r
2056\r
2057 @retval EFI_SUCCESS It should always work.\r
2058\r
2059**/\r
2060EFI_STATUS\r
2061LegacyBiosCompleteStandardCmosBeforeBoot (\r
2062 IN LEGACY_BIOS_INSTANCE *Private\r
2063 )\r
2064{\r
2065 UINT8 Bda;\r
2066 UINT8 Floppy;\r
2067 UINT32 Size;\r
2068\r
2069 //\r
2070 // Update CMOS locations\r
2071 // 10 floppy\r
2072 // 12,19,1A - ignore as OS don't use them and there is no standard due\r
2073 // to large capacity drives\r
2074 // CMOS 14 = BDA 40:10 plus bit 3(display enabled)\r
2075 //\r
2076 Bda = (UINT8)(*((UINT8 *)((UINTN)0x410)) | BIT3);\r
2077\r
2078 //\r
2079 // Force display enabled\r
2080 //\r
2081 Floppy = 0x00;\r
2082 if ((Bda & BIT0) != 0) {\r
2083 Floppy = BIT6;\r
2084 }\r
2085\r
2086 //\r
2087 // Check if 2.88MB floppy set\r
2088 //\r
2089 if ((Bda & (BIT7 | BIT6)) != 0) {\r
2090 Floppy = (UINT8)(Floppy | BIT1);\r
2091 }\r
2092\r
2093 LegacyWriteStandardCmos (CMOS_10, Floppy);\r
2094 LegacyWriteStandardCmos (CMOS_14, Bda);\r
2095\r
2096 //\r
2097 // Force Status Register A to set rate selection bits and divider\r
2098 //\r
2099 LegacyWriteStandardCmos (CMOS_0A, 0x26);\r
2100\r
2101 //\r
2102 // redo memory size since it can change\r
2103 //\r
de2eccc4 2104 Size = (15 * SIZE_1MB) >> 10;\r
bcecde14 2105 if (Private->IntThunk->EfiToLegacy16InitTable.OsMemoryAbove1Mb < (15 * SIZE_1MB)) {\r
2106 Size = Private->IntThunk->EfiToLegacy16InitTable.OsMemoryAbove1Mb >> 10;\r
2107 }\r
2108\r
2109 LegacyWriteStandardCmos (CMOS_17, (UINT8)(Size & 0xFF));\r
2110 LegacyWriteStandardCmos (CMOS_30, (UINT8)(Size & 0xFF));\r
2111 LegacyWriteStandardCmos (CMOS_18, (UINT8)(Size >> 8));\r
2112 LegacyWriteStandardCmos (CMOS_31, (UINT8)(Size >> 8));\r
2113\r
2114 LegacyCalculateWriteStandardCmosChecksum ();\r
2115\r
2116 return EFI_SUCCESS;\r
2117}\r
2118\r
2119/**\r
2120 Relocate this image under 4G memory for IPF.\r
2121\r
2122 @param ImageHandle Handle of driver image.\r
2123 @param SystemTable Pointer to system table.\r
2124\r
2125 @retval EFI_SUCCESS Image successfully relocated.\r
2126 @retval EFI_ABORTED Failed to relocate image.\r
2127\r
2128**/\r
2129EFI_STATUS\r
2130RelocateImageUnder4GIfNeeded (\r
2131 IN EFI_HANDLE ImageHandle,\r
2132 IN EFI_SYSTEM_TABLE *SystemTable\r
2133 )\r
2134{\r
2135 return EFI_SUCCESS;\r
2136}\r
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