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522203de | 1 | /** @file\r |
2 | OVMF ACPI QEMU support\r | |
3 | \r | |
ce883845 | 4 | Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>\r |
14430c55 | 5 | \r |
2d1fe950 | 6 | Copyright (C) 2012-2014, Red Hat, Inc.\r |
14430c55 | 7 | \r |
522203de | 8 | This program and the accompanying materials\r |
9 | are licensed and made available under the terms and conditions of the BSD License\r | |
10 | which accompanies this distribution. The full text of the license may be found at\r | |
11 | http://opensource.org/licenses/bsd-license.php\r | |
12 | \r | |
13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
15 | \r | |
253a2ea7 | 16 | **/\r |
522203de | 17 | \r |
18 | #include "AcpiPlatform.h"\r | |
a618eaa1 | 19 | #include "QemuLoader.h"\r |
255b4184 | 20 | #include <Library/BaseMemoryLib.h>\r |
21 | #include <Library/MemoryAllocationLib.h>\r | |
522203de | 22 | #include <Library/QemuFwCfgLib.h>\r |
57c0beb6 | 23 | #include <Library/DxeServicesTableLib.h>\r |
498f7d8d | 24 | #include <Library/PcdLib.h>\r |
387536e4 | 25 | #include <Library/OrderedCollectionLib.h>\r |
498f7d8d | 26 | #include <IndustryStandard/Acpi.h>\r |
522203de | 27 | \r |
28 | BOOLEAN\r | |
29 | QemuDetected (\r | |
30 | VOID\r | |
31 | )\r | |
32 | {\r | |
33 | if (!QemuFwCfgIsAvailable ()) {\r | |
34 | return FALSE;\r | |
35 | }\r | |
36 | \r | |
37 | return TRUE;\r | |
38 | }\r | |
39 | \r | |
40 | \r | |
498f7d8d | 41 | STATIC\r |
42 | UINTN\r | |
43 | CountBits16 (\r | |
44 | UINT16 Mask\r | |
45 | )\r | |
46 | {\r | |
47 | //\r | |
48 | // For all N >= 1, N bits are enough to represent the number of bits set\r | |
49 | // among N bits. It's true for N == 1. When adding a new bit (N := N+1),\r | |
50 | // the maximum number of possibly set bits increases by one, while the\r | |
51 | // representable maximum doubles.\r | |
52 | //\r | |
53 | Mask = ((Mask & 0xAAAA) >> 1) + (Mask & 0x5555);\r | |
54 | Mask = ((Mask & 0xCCCC) >> 2) + (Mask & 0x3333);\r | |
55 | Mask = ((Mask & 0xF0F0) >> 4) + (Mask & 0x0F0F);\r | |
56 | Mask = ((Mask & 0xFF00) >> 8) + (Mask & 0x00FF);\r | |
57 | \r | |
58 | return Mask;\r | |
59 | }\r | |
60 | \r | |
61 | \r | |
255b4184 | 62 | STATIC\r |
63 | EFI_STATUS\r | |
64 | EFIAPI\r | |
65 | QemuInstallAcpiMadtTable (\r | |
66 | IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,\r | |
67 | IN VOID *AcpiTableBuffer,\r | |
68 | IN UINTN AcpiTableBufferSize,\r | |
69 | OUT UINTN *TableKey\r | |
70 | )\r | |
71 | {\r | |
498f7d8d | 72 | UINTN CpuCount;\r |
73 | UINTN PciLinkIsoCount;\r | |
74 | UINTN NewBufferSize;\r | |
75 | EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER *Madt;\r | |
76 | EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE *LocalApic;\r | |
77 | EFI_ACPI_1_0_IO_APIC_STRUCTURE *IoApic;\r | |
78 | EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE *Iso;\r | |
79 | EFI_ACPI_1_0_LOCAL_APIC_NMI_STRUCTURE *LocalApicNmi;\r | |
80 | VOID *Ptr;\r | |
81 | UINTN Loop;\r | |
82 | EFI_STATUS Status;\r | |
83 | \r | |
84 | ASSERT (AcpiTableBufferSize >= sizeof (EFI_ACPI_DESCRIPTION_HEADER));\r | |
255b4184 | 85 | \r |
86 | QemuFwCfgSelectItem (QemuFwCfgItemSmpCpuCount);\r | |
498f7d8d | 87 | CpuCount = QemuFwCfgRead16 ();\r |
88 | ASSERT (CpuCount >= 1);\r | |
255b4184 | 89 | \r |
90 | //\r | |
498f7d8d | 91 | // Set Level-tiggered, Active High for these identity mapped IRQs. The bitset\r |
92 | // corresponds to the union of all possible interrupt assignments for the LNKA,\r | |
93 | // LNKB, LNKC, LNKD PCI interrupt lines. See the DSDT.\r | |
255b4184 | 94 | //\r |
498f7d8d | 95 | PciLinkIsoCount = CountBits16 (PcdGet16 (Pcd8259LegacyModeEdgeLevel));\r |
255b4184 | 96 | \r |
498f7d8d | 97 | NewBufferSize = 1 * sizeof (*Madt) +\r |
98 | CpuCount * sizeof (*LocalApic) +\r | |
99 | 1 * sizeof (*IoApic) +\r | |
100 | (1 + PciLinkIsoCount) * sizeof (*Iso) +\r | |
101 | 1 * sizeof (*LocalApicNmi);\r | |
255b4184 | 102 | \r |
498f7d8d | 103 | Madt = AllocatePool (NewBufferSize);\r |
104 | if (Madt == NULL) {\r | |
105 | return EFI_OUT_OF_RESOURCES;\r | |
106 | }\r | |
107 | \r | |
ff8dd312 | 108 | CopyMem (&(Madt->Header), AcpiTableBuffer, sizeof (EFI_ACPI_DESCRIPTION_HEADER));\r |
109 | Madt->Header.Length = (UINT32) NewBufferSize;\r | |
498f7d8d | 110 | Madt->LocalApicAddress = PcdGet32 (PcdCpuLocalApicBaseAddress);\r |
111 | Madt->Flags = EFI_ACPI_1_0_PCAT_COMPAT;\r | |
112 | Ptr = Madt + 1;\r | |
113 | \r | |
114 | LocalApic = Ptr;\r | |
115 | for (Loop = 0; Loop < CpuCount; ++Loop) {\r | |
116 | LocalApic->Type = EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC;\r | |
117 | LocalApic->Length = sizeof (*LocalApic);\r | |
ff8dd312 | 118 | LocalApic->AcpiProcessorId = (UINT8) Loop;\r |
119 | LocalApic->ApicId = (UINT8) Loop;\r | |
498f7d8d | 120 | LocalApic->Flags = 1; // enabled\r |
121 | ++LocalApic;\r | |
122 | }\r | |
123 | Ptr = LocalApic;\r | |
124 | \r | |
125 | IoApic = Ptr;\r | |
126 | IoApic->Type = EFI_ACPI_1_0_IO_APIC;\r | |
127 | IoApic->Length = sizeof (*IoApic);\r | |
ff8dd312 | 128 | IoApic->IoApicId = (UINT8) CpuCount;\r |
498f7d8d | 129 | IoApic->Reserved = EFI_ACPI_RESERVED_BYTE;\r |
130 | IoApic->IoApicAddress = 0xFEC00000;\r | |
131 | IoApic->SystemVectorBase = 0x00000000;\r | |
132 | Ptr = IoApic + 1;\r | |
255b4184 | 133 | \r |
134 | //\r | |
498f7d8d | 135 | // IRQ0 (8254 Timer) => IRQ2 (PIC) Interrupt Source Override Structure\r |
255b4184 | 136 | //\r |
498f7d8d | 137 | Iso = Ptr;\r |
138 | Iso->Type = EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE;\r | |
139 | Iso->Length = sizeof (*Iso);\r | |
140 | Iso->Bus = 0x00; // ISA\r | |
141 | Iso->Source = 0x00; // IRQ0\r | |
142 | Iso->GlobalSystemInterruptVector = 0x00000002;\r | |
143 | Iso->Flags = 0x0000; // Conforms to specs of the bus\r | |
144 | ++Iso;\r | |
255b4184 | 145 | \r |
498f7d8d | 146 | //\r |
147 | // Set Level-tiggered, Active High for all possible PCI link targets.\r | |
148 | //\r | |
149 | for (Loop = 0; Loop < 16; ++Loop) {\r | |
150 | if ((PcdGet16 (Pcd8259LegacyModeEdgeLevel) & (1 << Loop)) == 0) {\r | |
151 | continue;\r | |
152 | }\r | |
153 | Iso->Type = EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE;\r | |
154 | Iso->Length = sizeof (*Iso);\r | |
155 | Iso->Bus = 0x00; // ISA\r | |
ff8dd312 | 156 | Iso->Source = (UINT8) Loop;\r |
157 | Iso->GlobalSystemInterruptVector = (UINT32) Loop;\r | |
498f7d8d | 158 | Iso->Flags = 0x000D; // Level-tiggered, Active High\r |
159 | ++Iso;\r | |
160 | }\r | |
161 | ASSERT (\r | |
ff8dd312 | 162 | (UINTN) (Iso - (EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE *)Ptr) ==\r |
498f7d8d | 163 | 1 + PciLinkIsoCount\r |
164 | );\r | |
165 | Ptr = Iso;\r | |
166 | \r | |
167 | LocalApicNmi = Ptr;\r | |
168 | LocalApicNmi->Type = EFI_ACPI_1_0_LOCAL_APIC_NMI;\r | |
169 | LocalApicNmi->Length = sizeof (*LocalApicNmi);\r | |
170 | LocalApicNmi->AcpiProcessorId = 0xFF; // applies to all processors\r | |
171 | //\r | |
172 | // polarity and trigger mode of the APIC I/O input signals conform to the\r | |
173 | // specifications of the bus\r | |
174 | //\r | |
175 | LocalApicNmi->Flags = 0x0000;\r | |
176 | //\r | |
177 | // Local APIC interrupt input LINTn to which NMI is connected.\r | |
178 | //\r | |
179 | LocalApicNmi->LocalApicInti = 0x01;\r | |
180 | Ptr = LocalApicNmi + 1;\r | |
255b4184 | 181 | \r |
ff8dd312 | 182 | ASSERT ((UINTN) ((UINT8 *)Ptr - (UINT8 *)Madt) == NewBufferSize);\r |
498f7d8d | 183 | Status = InstallAcpiTable (AcpiProtocol, Madt, NewBufferSize, TableKey);\r |
255b4184 | 184 | \r |
498f7d8d | 185 | FreePool (Madt);\r |
255b4184 | 186 | \r |
187 | return Status;\r | |
188 | }\r | |
189 | \r | |
190 | \r | |
253a2ea7 | 191 | #pragma pack(1)\r |
192 | \r | |
193 | typedef struct {\r | |
194 | UINT64 Base;\r | |
195 | UINT64 End;\r | |
196 | UINT64 Length;\r | |
197 | } PCI_WINDOW;\r | |
198 | \r | |
199 | typedef struct {\r | |
200 | PCI_WINDOW PciWindow32;\r | |
201 | PCI_WINDOW PciWindow64;\r | |
202 | } FIRMWARE_DATA;\r | |
203 | \r | |
14430c55 | 204 | typedef struct {\r |
3d80db51 | 205 | UINT8 BytePrefix;\r |
206 | UINT8 ByteValue;\r | |
207 | } AML_BYTE;\r | |
208 | \r | |
209 | typedef struct {\r | |
210 | UINT8 NameOp;\r | |
211 | UINT8 RootChar;\r | |
212 | UINT8 NameChar[4];\r | |
213 | UINT8 PackageOp;\r | |
214 | UINT8 PkgLength;\r | |
215 | UINT8 NumElements;\r | |
216 | AML_BYTE Pm1aCntSlpTyp;\r | |
217 | AML_BYTE Pm1bCntSlpTyp;\r | |
218 | AML_BYTE Reserved[2];\r | |
14430c55 | 219 | } SYSTEM_STATE_PACKAGE;\r |
220 | \r | |
253a2ea7 | 221 | #pragma pack()\r |
222 | \r | |
223 | \r | |
224 | STATIC\r | |
225 | EFI_STATUS\r | |
226 | EFIAPI\r | |
227 | PopulateFwData(\r | |
228 | OUT FIRMWARE_DATA *FwData\r | |
229 | )\r | |
230 | {\r | |
57c0beb6 | 231 | EFI_STATUS Status;\r |
232 | UINTN NumDesc;\r | |
233 | EFI_GCD_MEMORY_SPACE_DESCRIPTOR *AllDesc;\r | |
234 | \r | |
235 | Status = gDS->GetMemorySpaceMap (&NumDesc, &AllDesc);\r | |
236 | if (Status == EFI_SUCCESS) {\r | |
237 | UINT64 NonMmio32MaxExclTop;\r | |
238 | UINT64 Mmio32MinBase;\r | |
239 | UINT64 Mmio32MaxExclTop;\r | |
240 | UINTN CurDesc;\r | |
241 | \r | |
242 | Status = EFI_UNSUPPORTED;\r | |
243 | \r | |
244 | NonMmio32MaxExclTop = 0;\r | |
245 | Mmio32MinBase = BASE_4GB;\r | |
246 | Mmio32MaxExclTop = 0;\r | |
247 | \r | |
248 | for (CurDesc = 0; CurDesc < NumDesc; ++CurDesc) {\r | |
249 | CONST EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Desc;\r | |
250 | UINT64 ExclTop;\r | |
251 | \r | |
252 | Desc = &AllDesc[CurDesc];\r | |
253 | ExclTop = Desc->BaseAddress + Desc->Length;\r | |
254 | \r | |
2662fa8d | 255 | if (ExclTop <= (UINT64) PcdGet32 (PcdOvmfFdBaseAddress)) {\r |
57c0beb6 | 256 | switch (Desc->GcdMemoryType) {\r |
257 | case EfiGcdMemoryTypeNonExistent:\r | |
258 | break;\r | |
259 | \r | |
260 | case EfiGcdMemoryTypeReserved:\r | |
261 | case EfiGcdMemoryTypeSystemMemory:\r | |
262 | if (NonMmio32MaxExclTop < ExclTop) {\r | |
263 | NonMmio32MaxExclTop = ExclTop;\r | |
264 | }\r | |
265 | break;\r | |
266 | \r | |
267 | case EfiGcdMemoryTypeMemoryMappedIo:\r | |
268 | if (Mmio32MinBase > Desc->BaseAddress) {\r | |
269 | Mmio32MinBase = Desc->BaseAddress;\r | |
270 | }\r | |
271 | if (Mmio32MaxExclTop < ExclTop) {\r | |
272 | Mmio32MaxExclTop = ExclTop;\r | |
273 | }\r | |
274 | break;\r | |
275 | \r | |
276 | default:\r | |
277 | ASSERT(0);\r | |
278 | }\r | |
279 | }\r | |
280 | }\r | |
281 | \r | |
282 | if (Mmio32MinBase < NonMmio32MaxExclTop) {\r | |
283 | Mmio32MinBase = NonMmio32MaxExclTop;\r | |
284 | }\r | |
285 | \r | |
286 | if (Mmio32MinBase < Mmio32MaxExclTop) {\r | |
287 | FwData->PciWindow32.Base = Mmio32MinBase;\r | |
288 | FwData->PciWindow32.End = Mmio32MaxExclTop - 1;\r | |
289 | FwData->PciWindow32.Length = Mmio32MaxExclTop - Mmio32MinBase;\r | |
290 | \r | |
291 | FwData->PciWindow64.Base = 0;\r | |
292 | FwData->PciWindow64.End = 0;\r | |
293 | FwData->PciWindow64.Length = 0;\r | |
294 | \r | |
295 | Status = EFI_SUCCESS;\r | |
296 | }\r | |
297 | \r | |
298 | FreePool (AllDesc);\r | |
299 | }\r | |
300 | \r | |
301 | DEBUG ((\r | |
302 | DEBUG_INFO,\r | |
303 | "ACPI PciWindow32: Base=0x%08lx End=0x%08lx Length=0x%08lx\n",\r | |
304 | FwData->PciWindow32.Base,\r | |
305 | FwData->PciWindow32.End,\r | |
306 | FwData->PciWindow32.Length\r | |
307 | ));\r | |
308 | DEBUG ((\r | |
309 | DEBUG_INFO,\r | |
310 | "ACPI PciWindow64: Base=0x%08lx End=0x%08lx Length=0x%08lx\n",\r | |
311 | FwData->PciWindow64.Base,\r | |
312 | FwData->PciWindow64.End,\r | |
313 | FwData->PciWindow64.Length\r | |
314 | ));\r | |
315 | \r | |
316 | return Status;\r | |
253a2ea7 | 317 | }\r |
318 | \r | |
319 | \r | |
14430c55 | 320 | STATIC\r |
321 | VOID\r | |
322 | EFIAPI\r | |
323 | GetSuspendStates (\r | |
324 | UINTN *SuspendToRamSize,\r | |
325 | SYSTEM_STATE_PACKAGE *SuspendToRam,\r | |
326 | UINTN *SuspendToDiskSize,\r | |
327 | SYSTEM_STATE_PACKAGE *SuspendToDisk\r | |
328 | )\r | |
329 | {\r | |
330 | STATIC CONST SYSTEM_STATE_PACKAGE Template = {\r | |
331 | 0x08, // NameOp\r | |
332 | '\\', // RootChar\r | |
333 | { '_', 'S', 'x', '_' }, // NameChar[4]\r | |
334 | 0x12, // PackageOp\r | |
3d80db51 | 335 | 0x0A, // PkgLength\r |
336 | 0x04, // NumElements\r | |
337 | { 0x0A, 0x00 }, // Pm1aCntSlpTyp\r | |
338 | { 0x0A, 0x00 }, // Pm1bCntSlpTyp -- we don't support it\r | |
339 | { // Reserved[2]\r | |
340 | { 0x0A, 0x00 },\r | |
341 | { 0x0A, 0x00 }\r | |
342 | }\r | |
14430c55 | 343 | };\r |
344 | RETURN_STATUS Status;\r | |
345 | FIRMWARE_CONFIG_ITEM FwCfgItem;\r | |
346 | UINTN FwCfgSize;\r | |
347 | UINT8 SystemStates[6];\r | |
348 | \r | |
349 | //\r | |
350 | // configure defaults\r | |
351 | //\r | |
352 | *SuspendToRamSize = sizeof Template;\r | |
353 | CopyMem (SuspendToRam, &Template, sizeof Template);\r | |
3d80db51 | 354 | SuspendToRam->NameChar[2] = '3'; // S3\r |
355 | SuspendToRam->Pm1aCntSlpTyp.ByteValue = 1; // PIIX4: STR\r | |
14430c55 | 356 | \r |
357 | *SuspendToDiskSize = sizeof Template;\r | |
358 | CopyMem (SuspendToDisk, &Template, sizeof Template);\r | |
3d80db51 | 359 | SuspendToDisk->NameChar[2] = '4'; // S4\r |
360 | SuspendToDisk->Pm1aCntSlpTyp.ByteValue = 2; // PIIX4: POSCL\r | |
14430c55 | 361 | \r |
362 | //\r | |
363 | // check for overrides\r | |
364 | //\r | |
365 | Status = QemuFwCfgFindFile ("etc/system-states", &FwCfgItem, &FwCfgSize);\r | |
366 | if (Status != RETURN_SUCCESS || FwCfgSize != sizeof SystemStates) {\r | |
367 | DEBUG ((DEBUG_INFO, "ACPI using S3/S4 defaults\n"));\r | |
368 | return;\r | |
369 | }\r | |
370 | QemuFwCfgSelectItem (FwCfgItem);\r | |
371 | QemuFwCfgReadBytes (sizeof SystemStates, SystemStates);\r | |
372 | \r | |
373 | //\r | |
374 | // Each byte corresponds to a system state. In each byte, the MSB tells us\r | |
375 | // whether the given state is enabled. If so, the three LSBs specify the\r | |
376 | // value to be written to the PM control register's SUS_TYP bits.\r | |
377 | //\r | |
378 | if (SystemStates[3] & BIT7) {\r | |
3d80db51 | 379 | SuspendToRam->Pm1aCntSlpTyp.ByteValue =\r |
380 | SystemStates[3] & (BIT2 | BIT1 | BIT0);\r | |
381 | DEBUG ((DEBUG_INFO, "ACPI S3 value: %d\n",\r | |
382 | SuspendToRam->Pm1aCntSlpTyp.ByteValue));\r | |
14430c55 | 383 | } else {\r |
384 | *SuspendToRamSize = 0;\r | |
385 | DEBUG ((DEBUG_INFO, "ACPI S3 disabled\n"));\r | |
386 | }\r | |
387 | \r | |
388 | if (SystemStates[4] & BIT7) {\r | |
3d80db51 | 389 | SuspendToDisk->Pm1aCntSlpTyp.ByteValue =\r |
390 | SystemStates[4] & (BIT2 | BIT1 | BIT0);\r | |
391 | DEBUG ((DEBUG_INFO, "ACPI S4 value: %d\n",\r | |
392 | SuspendToDisk->Pm1aCntSlpTyp.ByteValue));\r | |
14430c55 | 393 | } else {\r |
394 | *SuspendToDiskSize = 0;\r | |
395 | DEBUG ((DEBUG_INFO, "ACPI S4 disabled\n"));\r | |
396 | }\r | |
397 | }\r | |
398 | \r | |
399 | \r | |
253a2ea7 | 400 | STATIC\r |
401 | EFI_STATUS\r | |
402 | EFIAPI\r | |
403 | QemuInstallAcpiSsdtTable (\r | |
404 | IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,\r | |
405 | IN VOID *AcpiTableBuffer,\r | |
406 | IN UINTN AcpiTableBufferSize,\r | |
407 | OUT UINTN *TableKey\r | |
408 | )\r | |
409 | {\r | |
410 | EFI_STATUS Status;\r | |
411 | FIRMWARE_DATA *FwData;\r | |
412 | \r | |
413 | Status = EFI_OUT_OF_RESOURCES;\r | |
414 | \r | |
415 | FwData = AllocateReservedPool (sizeof (*FwData));\r | |
416 | if (FwData != NULL) {\r | |
14430c55 | 417 | UINTN SuspendToRamSize;\r |
418 | SYSTEM_STATE_PACKAGE SuspendToRam;\r | |
419 | UINTN SuspendToDiskSize;\r | |
420 | SYSTEM_STATE_PACKAGE SuspendToDisk;\r | |
421 | UINTN SsdtSize;\r | |
422 | UINT8 *Ssdt;\r | |
423 | \r | |
424 | GetSuspendStates (&SuspendToRamSize, &SuspendToRam,\r | |
425 | &SuspendToDiskSize, &SuspendToDisk);\r | |
426 | SsdtSize = AcpiTableBufferSize + 17 + SuspendToRamSize + SuspendToDiskSize;\r | |
253a2ea7 | 427 | Ssdt = AllocatePool (SsdtSize);\r |
428 | \r | |
429 | if (Ssdt != NULL) {\r | |
430 | Status = PopulateFwData (FwData);\r | |
431 | \r | |
432 | if (Status == EFI_SUCCESS) {\r | |
433 | UINT8 *SsdtPtr;\r | |
434 | \r | |
435 | SsdtPtr = Ssdt;\r | |
436 | \r | |
437 | CopyMem (SsdtPtr, AcpiTableBuffer, AcpiTableBufferSize);\r | |
438 | SsdtPtr += AcpiTableBufferSize;\r | |
439 | \r | |
440 | //\r | |
441 | // build "OperationRegion(FWDT, SystemMemory, 0x12345678, 0x87654321)"\r | |
442 | //\r | |
443 | *(SsdtPtr++) = 0x5B; // ExtOpPrefix\r | |
444 | *(SsdtPtr++) = 0x80; // OpRegionOp\r | |
445 | *(SsdtPtr++) = 'F';\r | |
446 | *(SsdtPtr++) = 'W';\r | |
447 | *(SsdtPtr++) = 'D';\r | |
448 | *(SsdtPtr++) = 'T';\r | |
449 | *(SsdtPtr++) = 0x00; // SystemMemory\r | |
450 | *(SsdtPtr++) = 0x0C; // DWordPrefix\r | |
451 | \r | |
452 | //\r | |
453 | // no virtual addressing yet, take the four least significant bytes\r | |
454 | //\r | |
455 | CopyMem(SsdtPtr, &FwData, 4);\r | |
456 | SsdtPtr += 4;\r | |
457 | \r | |
458 | *(SsdtPtr++) = 0x0C; // DWordPrefix\r | |
459 | \r | |
460 | *(UINT32*) SsdtPtr = sizeof (*FwData);\r | |
461 | SsdtPtr += 4;\r | |
462 | \r | |
14430c55 | 463 | //\r |
464 | // add suspend system states\r | |
465 | //\r | |
466 | CopyMem (SsdtPtr, &SuspendToRam, SuspendToRamSize);\r | |
467 | SsdtPtr += SuspendToRamSize;\r | |
468 | CopyMem (SsdtPtr, &SuspendToDisk, SuspendToDiskSize);\r | |
469 | SsdtPtr += SuspendToDiskSize;\r | |
470 | \r | |
26af9aca | 471 | ASSERT((UINTN) (SsdtPtr - Ssdt) == SsdtSize);\r |
472 | ((EFI_ACPI_DESCRIPTION_HEADER *) Ssdt)->Length = (UINT32) SsdtSize;\r | |
253a2ea7 | 473 | Status = InstallAcpiTable (AcpiProtocol, Ssdt, SsdtSize, TableKey);\r |
474 | }\r | |
475 | \r | |
476 | FreePool(Ssdt);\r | |
477 | }\r | |
478 | \r | |
479 | if (Status != EFI_SUCCESS) {\r | |
480 | FreePool(FwData);\r | |
481 | }\r | |
482 | }\r | |
483 | \r | |
484 | return Status;\r | |
485 | }\r | |
486 | \r | |
487 | \r | |
522203de | 488 | EFI_STATUS\r |
489 | EFIAPI\r | |
490 | QemuInstallAcpiTable (\r | |
491 | IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,\r | |
492 | IN VOID *AcpiTableBuffer,\r | |
493 | IN UINTN AcpiTableBufferSize,\r | |
494 | OUT UINTN *TableKey\r | |
495 | )\r | |
496 | {\r | |
255b4184 | 497 | EFI_ACPI_DESCRIPTION_HEADER *Hdr;\r |
498 | EFI_ACPI_TABLE_INSTALL_ACPI_TABLE TableInstallFunction;\r | |
499 | \r | |
500 | Hdr = (EFI_ACPI_DESCRIPTION_HEADER*) AcpiTableBuffer;\r | |
501 | switch (Hdr->Signature) {\r | |
502 | case EFI_ACPI_1_0_APIC_SIGNATURE:\r | |
503 | TableInstallFunction = QemuInstallAcpiMadtTable;\r | |
504 | break;\r | |
253a2ea7 | 505 | case EFI_ACPI_1_0_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:\r |
506 | TableInstallFunction = QemuInstallAcpiSsdtTable;\r | |
507 | break;\r | |
255b4184 | 508 | default:\r |
509 | TableInstallFunction = InstallAcpiTable;\r | |
510 | }\r | |
511 | \r | |
512 | return TableInstallFunction (\r | |
522203de | 513 | AcpiProtocol,\r |
514 | AcpiTableBuffer,\r | |
515 | AcpiTableBufferSize,\r | |
516 | TableKey\r | |
517 | );\r | |
518 | }\r | |
519 | \r | |
96bbdbc8 | 520 | \r |
387536e4 LE |
521 | //\r |
522 | // The user structure for the ordered collection that will track the fw_cfg\r | |
523 | // blobs under processing.\r | |
524 | //\r | |
525 | typedef struct {\r | |
526 | UINT8 File[QEMU_LOADER_FNAME_SIZE]; // NUL-terminated name of the fw_cfg\r | |
527 | // blob. This is the ordering / search\r | |
528 | // key.\r | |
529 | UINTN Size; // The number of bytes in this blob.\r | |
530 | UINT8 *Base; // Pointer to the blob data.\r | |
531 | BOOLEAN HostsOnlyTableData; // TRUE iff the blob has been found to\r | |
532 | // only contain data that is directly\r | |
533 | // part of ACPI tables.\r | |
534 | } BLOB;\r | |
535 | \r | |
536 | \r | |
537 | /**\r | |
538 | Compare a standalone key against a user structure containing an embedded key.\r | |
539 | \r | |
540 | @param[in] StandaloneKey Pointer to the bare key.\r | |
541 | \r | |
542 | @param[in] UserStruct Pointer to the user structure with the embedded\r | |
543 | key.\r | |
544 | \r | |
545 | @retval <0 If StandaloneKey compares less than UserStruct's key.\r | |
546 | \r | |
547 | @retval 0 If StandaloneKey compares equal to UserStruct's key.\r | |
548 | \r | |
549 | @retval >0 If StandaloneKey compares greater than UserStruct's key.\r | |
550 | **/\r | |
551 | STATIC\r | |
552 | INTN\r | |
553 | EFIAPI\r | |
554 | BlobKeyCompare (\r | |
555 | IN CONST VOID *StandaloneKey,\r | |
556 | IN CONST VOID *UserStruct\r | |
557 | )\r | |
558 | {\r | |
559 | CONST BLOB *Blob;\r | |
560 | \r | |
561 | Blob = UserStruct;\r | |
562 | return AsciiStrCmp (StandaloneKey, (CONST CHAR8 *)Blob->File);\r | |
563 | }\r | |
564 | \r | |
565 | \r | |
566 | /**\r | |
567 | Comparator function for two user structures.\r | |
568 | \r | |
569 | @param[in] UserStruct1 Pointer to the first user structure.\r | |
570 | \r | |
571 | @param[in] UserStruct2 Pointer to the second user structure.\r | |
572 | \r | |
573 | @retval <0 If UserStruct1 compares less than UserStruct2.\r | |
574 | \r | |
575 | @retval 0 If UserStruct1 compares equal to UserStruct2.\r | |
576 | \r | |
577 | @retval >0 If UserStruct1 compares greater than UserStruct2.\r | |
578 | **/\r | |
579 | STATIC\r | |
580 | INTN\r | |
581 | EFIAPI\r | |
582 | BlobCompare (\r | |
583 | IN CONST VOID *UserStruct1,\r | |
584 | IN CONST VOID *UserStruct2\r | |
585 | )\r | |
586 | {\r | |
587 | CONST BLOB *Blob1;\r | |
588 | \r | |
589 | Blob1 = UserStruct1;\r | |
590 | return BlobKeyCompare (Blob1->File, UserStruct2);\r | |
591 | }\r | |
592 | \r | |
593 | \r | |
594 | /**\r | |
595 | Process a QEMU_LOADER_ALLOCATE command.\r | |
596 | \r | |
597 | @param[in] Allocate The QEMU_LOADER_ALLOCATE command to process.\r | |
598 | \r | |
599 | @param[in,out] Tracker The ORDERED_COLLECTION tracking the BLOB user\r | |
600 | structures created thus far.\r | |
601 | \r | |
602 | @retval EFI_SUCCESS An area of whole AcpiNVS pages has been\r | |
603 | allocated for the blob contents, and the\r | |
604 | contents have been saved. A BLOB object (user\r | |
605 | structure) has been allocated from pool memory,\r | |
606 | referencing the blob contents. The BLOB user\r | |
607 | structure has been linked into Tracker.\r | |
608 | \r | |
609 | @retval EFI_PROTOCOL_ERROR Malformed fw_cfg file name has been found in\r | |
610 | Allocate, or the Allocate command references a\r | |
611 | file that is already known by Tracker.\r | |
612 | \r | |
613 | @retval EFI_UNSUPPORTED Unsupported alignment request has been found in\r | |
614 | Allocate.\r | |
615 | \r | |
616 | @retval EFI_OUT_OF_RESOURCES Pool allocation failed.\r | |
617 | \r | |
618 | @return Error codes from QemuFwCfgFindFile() and\r | |
619 | gBS->AllocatePages().\r | |
620 | **/\r | |
621 | STATIC\r | |
622 | EFI_STATUS\r | |
623 | EFIAPI\r | |
624 | ProcessCmdAllocate (\r | |
625 | IN CONST QEMU_LOADER_ALLOCATE *Allocate,\r | |
626 | IN OUT ORDERED_COLLECTION *Tracker\r | |
627 | )\r | |
628 | {\r | |
629 | FIRMWARE_CONFIG_ITEM FwCfgItem;\r | |
630 | UINTN FwCfgSize;\r | |
631 | EFI_STATUS Status;\r | |
632 | UINTN NumPages;\r | |
633 | EFI_PHYSICAL_ADDRESS Address;\r | |
634 | BLOB *Blob;\r | |
635 | \r | |
636 | if (Allocate->File[QEMU_LOADER_FNAME_SIZE - 1] != '\0') {\r | |
637 | DEBUG ((EFI_D_ERROR, "%a: malformed file name\n", __FUNCTION__));\r | |
638 | return EFI_PROTOCOL_ERROR;\r | |
639 | }\r | |
640 | \r | |
641 | if (Allocate->Alignment > EFI_PAGE_SIZE) {\r | |
642 | DEBUG ((EFI_D_ERROR, "%a: unsupported alignment 0x%x\n", __FUNCTION__,\r | |
643 | Allocate->Alignment));\r | |
644 | return EFI_UNSUPPORTED;\r | |
645 | }\r | |
646 | \r | |
647 | Status = QemuFwCfgFindFile ((CHAR8 *)Allocate->File, &FwCfgItem, &FwCfgSize);\r | |
648 | if (EFI_ERROR (Status)) {\r | |
649 | DEBUG ((EFI_D_ERROR, "%a: QemuFwCfgFindFile(\"%a\"): %r\n", __FUNCTION__,\r | |
650 | Allocate->File, Status));\r | |
651 | return Status;\r | |
652 | }\r | |
653 | \r | |
654 | NumPages = EFI_SIZE_TO_PAGES (FwCfgSize);\r | |
655 | Address = 0xFFFFFFFF;\r | |
656 | Status = gBS->AllocatePages (AllocateMaxAddress, EfiACPIMemoryNVS, NumPages,\r | |
657 | &Address);\r | |
658 | if (EFI_ERROR (Status)) {\r | |
659 | return Status;\r | |
660 | }\r | |
661 | \r | |
662 | Blob = AllocatePool (sizeof *Blob);\r | |
663 | if (Blob == NULL) {\r | |
664 | Status = EFI_OUT_OF_RESOURCES;\r | |
665 | goto FreePages;\r | |
666 | }\r | |
667 | CopyMem (Blob->File, Allocate->File, QEMU_LOADER_FNAME_SIZE);\r | |
668 | Blob->Size = FwCfgSize;\r | |
669 | Blob->Base = (VOID *)(UINTN)Address;\r | |
670 | Blob->HostsOnlyTableData = TRUE;\r | |
671 | \r | |
672 | Status = OrderedCollectionInsert (Tracker, NULL, Blob);\r | |
673 | if (Status == RETURN_ALREADY_STARTED) {\r | |
674 | DEBUG ((EFI_D_ERROR, "%a: duplicated file \"%a\"\n", __FUNCTION__,\r | |
675 | Allocate->File));\r | |
676 | Status = EFI_PROTOCOL_ERROR;\r | |
677 | }\r | |
678 | if (EFI_ERROR (Status)) {\r | |
679 | goto FreeBlob;\r | |
680 | }\r | |
681 | \r | |
682 | QemuFwCfgSelectItem (FwCfgItem);\r | |
683 | QemuFwCfgReadBytes (FwCfgSize, Blob->Base);\r | |
684 | ZeroMem (Blob->Base + Blob->Size, EFI_PAGES_TO_SIZE (NumPages) - Blob->Size);\r | |
685 | \r | |
686 | DEBUG ((EFI_D_VERBOSE, "%a: File=\"%a\" Alignment=0x%x Zone=%d Size=0x%Lx "\r | |
687 | "Address=0x%Lx\n", __FUNCTION__, Allocate->File, Allocate->Alignment,\r | |
688 | Allocate->Zone, (UINT64)Blob->Size, (UINT64)(UINTN)Blob->Base));\r | |
689 | return EFI_SUCCESS;\r | |
690 | \r | |
691 | FreeBlob:\r | |
692 | FreePool (Blob);\r | |
693 | \r | |
694 | FreePages:\r | |
695 | gBS->FreePages (Address, NumPages);\r | |
696 | \r | |
697 | return Status;\r | |
698 | }\r | |
699 | \r | |
700 | \r | |
701 | /**\r | |
702 | Process a QEMU_LOADER_ADD_POINTER command.\r | |
703 | \r | |
704 | @param[in] AddPointer The QEMU_LOADER_ADD_POINTER command to process.\r | |
705 | \r | |
706 | @param[in] Tracker The ORDERED_COLLECTION tracking the BLOB user\r | |
707 | structures created thus far.\r | |
708 | \r | |
709 | @retval EFI_PROTOCOL_ERROR Malformed fw_cfg file name(s) have been found in\r | |
710 | AddPointer, or the AddPointer command references\r | |
711 | a file unknown to Tracker, or the pointer to\r | |
712 | relocate has invalid location, size, or value, or\r | |
713 | the relocated pointer value is not representable\r | |
714 | in the given pointer size.\r | |
715 | \r | |
716 | @retval EFI_SUCCESS The pointer field inside the pointer blob has\r | |
717 | been relocated.\r | |
718 | **/\r | |
719 | STATIC\r | |
720 | EFI_STATUS\r | |
721 | EFIAPI\r | |
722 | ProcessCmdAddPointer (\r | |
723 | IN CONST QEMU_LOADER_ADD_POINTER *AddPointer,\r | |
724 | IN CONST ORDERED_COLLECTION *Tracker\r | |
725 | )\r | |
726 | {\r | |
727 | ORDERED_COLLECTION_ENTRY *TrackerEntry, *TrackerEntry2;\r | |
728 | BLOB *Blob, *Blob2;\r | |
729 | UINT8 *PointerField;\r | |
730 | UINT64 PointerValue;\r | |
731 | \r | |
732 | if (AddPointer->PointerFile[QEMU_LOADER_FNAME_SIZE - 1] != '\0' ||\r | |
733 | AddPointer->PointeeFile[QEMU_LOADER_FNAME_SIZE - 1] != '\0') {\r | |
734 | DEBUG ((EFI_D_ERROR, "%a: malformed file name\n", __FUNCTION__));\r | |
735 | return EFI_PROTOCOL_ERROR;\r | |
736 | }\r | |
737 | \r | |
738 | TrackerEntry = OrderedCollectionFind (Tracker, AddPointer->PointerFile);\r | |
739 | TrackerEntry2 = OrderedCollectionFind (Tracker, AddPointer->PointeeFile);\r | |
740 | if (TrackerEntry == NULL || TrackerEntry2 == NULL) {\r | |
741 | DEBUG ((EFI_D_ERROR, "%a: invalid blob reference(s) \"%a\" / \"%a\"\n",\r | |
742 | __FUNCTION__, AddPointer->PointerFile, AddPointer->PointeeFile));\r | |
743 | return EFI_PROTOCOL_ERROR;\r | |
744 | }\r | |
745 | \r | |
746 | Blob = OrderedCollectionUserStruct (TrackerEntry);\r | |
747 | Blob2 = OrderedCollectionUserStruct (TrackerEntry2);\r | |
748 | if ((AddPointer->PointerSize != 1 && AddPointer->PointerSize != 2 &&\r | |
749 | AddPointer->PointerSize != 4 && AddPointer->PointerSize != 8) ||\r | |
750 | Blob->Size < AddPointer->PointerSize ||\r | |
751 | Blob->Size - AddPointer->PointerSize < AddPointer->PointerOffset) {\r | |
752 | DEBUG ((EFI_D_ERROR, "%a: invalid pointer location or size in \"%a\"\n",\r | |
753 | __FUNCTION__, AddPointer->PointerFile));\r | |
754 | return EFI_PROTOCOL_ERROR;\r | |
755 | }\r | |
756 | \r | |
757 | PointerField = Blob->Base + AddPointer->PointerOffset;\r | |
758 | PointerValue = 0;\r | |
759 | CopyMem (&PointerValue, PointerField, AddPointer->PointerSize);\r | |
760 | if (PointerValue >= Blob2->Size) {\r | |
761 | DEBUG ((EFI_D_ERROR, "%a: invalid pointer value in \"%a\"\n", __FUNCTION__,\r | |
762 | AddPointer->PointerFile));\r | |
763 | return EFI_PROTOCOL_ERROR;\r | |
764 | }\r | |
765 | \r | |
766 | //\r | |
767 | // The memory allocation system ensures that the address of the byte past the\r | |
768 | // last byte of any allocated object is expressible (no wraparound).\r | |
769 | //\r | |
770 | ASSERT ((UINTN)Blob2->Base <= MAX_ADDRESS - Blob2->Size);\r | |
771 | \r | |
772 | PointerValue += (UINT64)(UINTN)Blob2->Base;\r | |
773 | if (RShiftU64 (\r | |
774 | RShiftU64 (PointerValue, AddPointer->PointerSize * 8 - 1), 1) != 0) {\r | |
775 | DEBUG ((EFI_D_ERROR, "%a: relocated pointer value unrepresentable in "\r | |
776 | "\"%a\"\n", __FUNCTION__, AddPointer->PointerFile));\r | |
777 | return EFI_PROTOCOL_ERROR;\r | |
778 | }\r | |
779 | \r | |
780 | CopyMem (PointerField, &PointerValue, AddPointer->PointerSize);\r | |
781 | \r | |
782 | DEBUG ((EFI_D_VERBOSE, "%a: PointerFile=\"%a\" PointeeFile=\"%a\" "\r | |
783 | "PointerOffset=0x%x PointerSize=%d\n", __FUNCTION__,\r | |
784 | AddPointer->PointerFile, AddPointer->PointeeFile,\r | |
785 | AddPointer->PointerOffset, AddPointer->PointerSize));\r | |
786 | return EFI_SUCCESS;\r | |
787 | }\r | |
788 | \r | |
789 | \r | |
2d1fe950 | 790 | /**\r |
387536e4 LE |
791 | Process a QEMU_LOADER_ADD_CHECKSUM command.\r |
792 | \r | |
793 | @param[in] AddChecksum The QEMU_LOADER_ADD_CHECKSUM command to process.\r | |
794 | \r | |
795 | @param[in] Tracker The ORDERED_COLLECTION tracking the BLOB user\r | |
796 | structures created thus far.\r | |
797 | \r | |
798 | @retval EFI_PROTOCOL_ERROR Malformed fw_cfg file name has been found in\r | |
799 | AddChecksum, or the AddChecksum command\r | |
800 | references a file unknown to Tracker, or the\r | |
801 | range to checksum is invalid.\r | |
802 | \r | |
803 | @retval EFI_SUCCESS The requested range has been checksummed.\r | |
804 | **/\r | |
805 | STATIC\r | |
806 | EFI_STATUS\r | |
807 | EFIAPI\r | |
808 | ProcessCmdAddChecksum (\r | |
809 | IN CONST QEMU_LOADER_ADD_CHECKSUM *AddChecksum,\r | |
810 | IN CONST ORDERED_COLLECTION *Tracker\r | |
811 | )\r | |
812 | {\r | |
813 | ORDERED_COLLECTION_ENTRY *TrackerEntry;\r | |
814 | BLOB *Blob;\r | |
815 | \r | |
816 | if (AddChecksum->File[QEMU_LOADER_FNAME_SIZE - 1] != '\0') {\r | |
817 | DEBUG ((EFI_D_ERROR, "%a: malformed file name\n", __FUNCTION__));\r | |
818 | return EFI_PROTOCOL_ERROR;\r | |
819 | }\r | |
820 | \r | |
821 | TrackerEntry = OrderedCollectionFind (Tracker, AddChecksum->File);\r | |
822 | if (TrackerEntry == NULL) {\r | |
823 | DEBUG ((EFI_D_ERROR, "%a: invalid blob reference \"%a\"\n", __FUNCTION__,\r | |
824 | AddChecksum->File));\r | |
825 | return EFI_PROTOCOL_ERROR;\r | |
826 | }\r | |
827 | \r | |
828 | Blob = OrderedCollectionUserStruct (TrackerEntry);\r | |
829 | if (Blob->Size <= AddChecksum->ResultOffset ||\r | |
830 | Blob->Size < AddChecksum->Length ||\r | |
831 | Blob->Size - AddChecksum->Length < AddChecksum->Start) {\r | |
832 | DEBUG ((EFI_D_ERROR, "%a: invalid checksum range in \"%a\"\n",\r | |
833 | __FUNCTION__, AddChecksum->File));\r | |
834 | return EFI_PROTOCOL_ERROR;\r | |
835 | }\r | |
836 | \r | |
837 | Blob->Base[AddChecksum->ResultOffset] = CalculateCheckSum8 (\r | |
838 | Blob->Base + AddChecksum->Start,\r | |
839 | AddChecksum->Length\r | |
840 | );\r | |
841 | DEBUG ((EFI_D_VERBOSE, "%a: File=\"%a\" ResultOffset=0x%x Start=0x%x "\r | |
842 | "Length=0x%x\n", __FUNCTION__, AddChecksum->File,\r | |
843 | AddChecksum->ResultOffset, AddChecksum->Start, AddChecksum->Length));\r | |
844 | return EFI_SUCCESS;\r | |
845 | }\r | |
846 | \r | |
847 | \r | |
848 | //\r | |
849 | // We'll be saving the keys of installed tables so that we can roll them back\r | |
850 | // in case of failure. 128 tables should be enough for anyone (TM).\r | |
851 | //\r | |
852 | #define INSTALLED_TABLES_MAX 128\r | |
853 | \r | |
854 | /**\r | |
855 | Process a QEMU_LOADER_ADD_POINTER command in order to see if its target byte\r | |
856 | array is an ACPI table, and if so, install it.\r | |
857 | \r | |
858 | This function assumes that the entire QEMU linker/loader command file has\r | |
859 | been processed successfuly in a prior first pass.\r | |
860 | \r | |
861 | @param[in] AddPointer The QEMU_LOADER_ADD_POINTER command to process.\r | |
862 | \r | |
863 | @param[in] Tracker The ORDERED_COLLECTION tracking the BLOB user\r | |
864 | structures.\r | |
865 | \r | |
866 | @param[in] AcpiProtocol The ACPI table protocol used to install tables.\r | |
867 | \r | |
868 | @param[in,out] InstalledKey On input, an array of INSTALLED_TABLES_MAX UINTN\r | |
869 | elements, allocated by the caller. On output,\r | |
870 | the function will have stored (appended) the\r | |
871 | AcpiProtocol-internal key of the ACPI table that\r | |
872 | the function has installed, if the AddPointer\r | |
873 | command identified an ACPI table that is\r | |
874 | different from RSDT and XSDT.\r | |
875 | \r | |
876 | @param[in,out] NumInstalled On input, the number of entries already used in\r | |
877 | InstalledKey; it must be in [0,\r | |
878 | INSTALLED_TABLES_MAX] inclusive. On output, the\r | |
879 | parameter is incremented if the AddPointer\r | |
880 | command identified an ACPI table that is\r | |
881 | different from RSDT and XSDT.\r | |
882 | \r | |
883 | @retval EFI_INVALID_PARAMETER NumInstalled was outside the allowed range on\r | |
884 | input.\r | |
885 | \r | |
886 | @retval EFI_OUT_OF_RESOURCES The AddPointer command identified an ACPI\r | |
887 | table different from RSDT and XSDT, but there\r | |
888 | was no more room in InstalledKey.\r | |
889 | \r | |
890 | @retval EFI_SUCCESS AddPointer has been processed. Either an ACPI\r | |
891 | table different from RSDT and XSDT has been\r | |
892 | installed (reflected by InstalledKey and\r | |
893 | NumInstalled), or RSDT or XSDT has been\r | |
894 | identified but not installed, or the fw_cfg\r | |
895 | blob pointed-into by AddPointer has been\r | |
896 | marked as hosting something else than just\r | |
897 | direct ACPI table contents.\r | |
898 | \r | |
899 | @return Error codes returned by\r | |
900 | AcpiProtocol->InstallAcpiTable().\r | |
901 | **/\r | |
902 | STATIC\r | |
903 | EFI_STATUS\r | |
904 | EFIAPI\r | |
905 | Process2ndPassCmdAddPointer (\r | |
906 | IN CONST QEMU_LOADER_ADD_POINTER *AddPointer,\r | |
907 | IN CONST ORDERED_COLLECTION *Tracker,\r | |
908 | IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,\r | |
909 | IN OUT UINTN InstalledKey[INSTALLED_TABLES_MAX],\r | |
910 | IN OUT INT32 *NumInstalled\r | |
911 | )\r | |
912 | {\r | |
913 | CONST ORDERED_COLLECTION_ENTRY *TrackerEntry;\r | |
914 | CONST ORDERED_COLLECTION_ENTRY *TrackerEntry2;\r | |
915 | CONST BLOB *Blob;\r | |
916 | BLOB *Blob2;\r | |
917 | CONST UINT8 *PointerField;\r | |
918 | UINT64 PointerValue;\r | |
919 | UINTN Blob2Remaining;\r | |
920 | UINTN TableSize;\r | |
921 | CONST EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs;\r | |
922 | CONST EFI_ACPI_DESCRIPTION_HEADER *Header;\r | |
923 | EFI_STATUS Status;\r | |
924 | \r | |
925 | if (*NumInstalled < 0 || *NumInstalled > INSTALLED_TABLES_MAX) {\r | |
926 | return EFI_INVALID_PARAMETER;\r | |
927 | }\r | |
928 | \r | |
929 | TrackerEntry = OrderedCollectionFind (Tracker, AddPointer->PointerFile);\r | |
930 | TrackerEntry2 = OrderedCollectionFind (Tracker, AddPointer->PointeeFile);\r | |
931 | Blob = OrderedCollectionUserStruct (TrackerEntry);\r | |
932 | Blob2 = OrderedCollectionUserStruct (TrackerEntry2);\r | |
933 | PointerField = Blob->Base + AddPointer->PointerOffset;\r | |
934 | PointerValue = 0;\r | |
935 | CopyMem (&PointerValue, PointerField, AddPointer->PointerSize);\r | |
936 | \r | |
937 | //\r | |
938 | // We assert that PointerValue falls inside Blob2's contents. This is ensured\r | |
939 | // by the Blob2->Size check and later checks in ProcessCmdAddPointer().\r | |
940 | //\r | |
941 | Blob2Remaining = (UINTN)Blob2->Base;\r | |
942 | ASSERT(PointerValue >= Blob2Remaining);\r | |
943 | Blob2Remaining += Blob2->Size;\r | |
944 | ASSERT (PointerValue < Blob2Remaining);\r | |
945 | \r | |
ce883845 | 946 | Blob2Remaining -= (UINTN) PointerValue;\r |
387536e4 LE |
947 | DEBUG ((EFI_D_VERBOSE, "%a: checking for ACPI header in \"%a\" at 0x%Lx "\r |
948 | "(remaining: 0x%Lx): ", __FUNCTION__, AddPointer->PointeeFile,\r | |
949 | PointerValue, (UINT64)Blob2Remaining));\r | |
950 | \r | |
951 | TableSize = 0;\r | |
952 | \r | |
953 | //\r | |
954 | // To make our job simple, the FACS has a custom header. Sigh.\r | |
955 | //\r | |
956 | if (sizeof *Facs <= Blob2Remaining) {\r | |
957 | Facs = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)(UINTN)PointerValue;\r | |
958 | \r | |
959 | if (Facs->Length >= sizeof *Facs &&\r | |
960 | Facs->Length <= Blob2Remaining &&\r | |
961 | Facs->Signature ==\r | |
962 | EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) {\r | |
963 | DEBUG ((EFI_D_VERBOSE, "found \"%-4.4a\" size 0x%x\n",\r | |
964 | (CONST CHAR8 *)&Facs->Signature, Facs->Length));\r | |
965 | TableSize = Facs->Length;\r | |
966 | }\r | |
967 | }\r | |
968 | \r | |
969 | //\r | |
970 | // check for the uniform tables\r | |
971 | //\r | |
972 | if (TableSize == 0 && sizeof *Header <= Blob2Remaining) {\r | |
973 | Header = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)PointerValue;\r | |
974 | \r | |
975 | if (Header->Length >= sizeof *Header &&\r | |
976 | Header->Length <= Blob2Remaining &&\r | |
977 | CalculateSum8 ((CONST UINT8 *)Header, Header->Length) == 0) {\r | |
978 | //\r | |
979 | // This looks very much like an ACPI table from QEMU:\r | |
980 | // - Length field consistent with both ACPI and containing blob size\r | |
981 | // - checksum is correct\r | |
982 | //\r | |
983 | DEBUG ((EFI_D_VERBOSE, "found \"%-4.4a\" size 0x%x\n",\r | |
984 | (CONST CHAR8 *)&Header->Signature, Header->Length));\r | |
985 | TableSize = Header->Length;\r | |
986 | \r | |
987 | //\r | |
988 | // Skip RSDT and XSDT because those are handled by\r | |
989 | // EFI_ACPI_TABLE_PROTOCOL automatically.\r | |
990 | if (Header->Signature ==\r | |
991 | EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE ||\r | |
992 | Header->Signature ==\r | |
993 | EFI_ACPI_2_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) {\r | |
994 | return EFI_SUCCESS;\r | |
995 | }\r | |
996 | }\r | |
997 | }\r | |
998 | \r | |
999 | if (TableSize == 0) {\r | |
1000 | DEBUG ((EFI_D_VERBOSE, "not found; marking fw_cfg blob as opaque\n"));\r | |
1001 | Blob2->HostsOnlyTableData = FALSE;\r | |
1002 | return EFI_SUCCESS;\r | |
1003 | }\r | |
1004 | \r | |
1005 | if (*NumInstalled == INSTALLED_TABLES_MAX) {\r | |
1006 | DEBUG ((EFI_D_ERROR, "%a: can't install more than %d tables\n",\r | |
1007 | __FUNCTION__, INSTALLED_TABLES_MAX));\r | |
1008 | return EFI_OUT_OF_RESOURCES;\r | |
1009 | }\r | |
1010 | \r | |
1011 | Status = AcpiProtocol->InstallAcpiTable (AcpiProtocol,\r | |
1012 | (VOID *)(UINTN)PointerValue, TableSize,\r | |
1013 | &InstalledKey[*NumInstalled]);\r | |
1014 | if (EFI_ERROR (Status)) {\r | |
1015 | DEBUG ((EFI_D_ERROR, "%a: InstallAcpiTable(): %r\n", __FUNCTION__,\r | |
1016 | Status));\r | |
1017 | return Status;\r | |
1018 | }\r | |
1019 | ++*NumInstalled;\r | |
1020 | return EFI_SUCCESS;\r | |
1021 | }\r | |
1022 | \r | |
1023 | \r | |
1024 | /**\r | |
1025 | Download, process, and install ACPI table data from the QEMU loader\r | |
1026 | interface.\r | |
2d1fe950 LE |
1027 | \r |
1028 | @param[in] AcpiProtocol The ACPI table protocol used to install tables.\r | |
1029 | \r | |
387536e4 LE |
1030 | @retval EFI_UNSUPPORTED Firmware configuration is unavailable, or QEMU\r |
1031 | loader command with unsupported parameters\r | |
1032 | has been found.\r | |
2d1fe950 LE |
1033 | \r |
1034 | @retval EFI_NOT_FOUND The host doesn't export the required fw_cfg\r | |
1035 | files.\r | |
1036 | \r | |
1037 | @retval EFI_OUT_OF_RESOURCES Memory allocation failed, or more than\r | |
1038 | INSTALLED_TABLES_MAX tables found.\r | |
1039 | \r | |
a618eaa1 | 1040 | @retval EFI_PROTOCOL_ERROR Found invalid fw_cfg contents.\r |
2d1fe950 LE |
1041 | \r |
1042 | @return Status codes returned by\r | |
1043 | AcpiProtocol->InstallAcpiTable().\r | |
1044 | \r | |
1045 | **/\r | |
2d1fe950 LE |
1046 | EFI_STATUS\r |
1047 | EFIAPI\r | |
1048 | InstallAllQemuLinkedTables (\r | |
1049 | IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol\r | |
1050 | )\r | |
1051 | {\r | |
387536e4 LE |
1052 | EFI_STATUS Status;\r |
1053 | FIRMWARE_CONFIG_ITEM FwCfgItem;\r | |
1054 | UINTN FwCfgSize;\r | |
1055 | QEMU_LOADER_ENTRY *LoaderStart;\r | |
1056 | CONST QEMU_LOADER_ENTRY *LoaderEntry, *LoaderEnd;\r | |
1057 | ORDERED_COLLECTION *Tracker;\r | |
1058 | UINTN *InstalledKey;\r | |
1059 | INT32 Installed;\r | |
1060 | ORDERED_COLLECTION_ENTRY *TrackerEntry, *TrackerEntry2;\r | |
1061 | \r | |
1062 | Status = QemuFwCfgFindFile ("etc/table-loader", &FwCfgItem, &FwCfgSize);\r | |
1063 | if (EFI_ERROR (Status)) {\r | |
1064 | return Status;\r | |
1065 | }\r | |
1066 | if (FwCfgSize % sizeof *LoaderEntry != 0) {\r | |
1067 | DEBUG ((EFI_D_ERROR, "%a: \"etc/table-loader\" has invalid size 0x%Lx\n",\r | |
1068 | __FUNCTION__, (UINT64)FwCfgSize));\r | |
1069 | return EFI_PROTOCOL_ERROR;\r | |
1070 | }\r | |
1071 | \r | |
1072 | LoaderStart = AllocatePool (FwCfgSize);\r | |
1073 | if (LoaderStart == NULL) {\r | |
1074 | return EFI_OUT_OF_RESOURCES;\r | |
1075 | }\r | |
1076 | QemuFwCfgSelectItem (FwCfgItem);\r | |
1077 | QemuFwCfgReadBytes (FwCfgSize, LoaderStart);\r | |
1078 | LoaderEnd = LoaderStart + FwCfgSize / sizeof *LoaderEntry;\r | |
1079 | \r | |
1080 | Tracker = OrderedCollectionInit (BlobCompare, BlobKeyCompare);\r | |
1081 | if (Tracker == NULL) {\r | |
1082 | Status = EFI_OUT_OF_RESOURCES;\r | |
1083 | goto FreeLoader;\r | |
1084 | }\r | |
1085 | \r | |
1086 | //\r | |
1087 | // first pass: process the commands\r | |
1088 | //\r | |
1089 | for (LoaderEntry = LoaderStart; LoaderEntry < LoaderEnd; ++LoaderEntry) {\r | |
1090 | switch (LoaderEntry->Type) {\r | |
1091 | case QemuLoaderCmdAllocate:\r | |
1092 | Status = ProcessCmdAllocate (&LoaderEntry->Command.Allocate, Tracker);\r | |
1093 | break;\r | |
1094 | \r | |
1095 | case QemuLoaderCmdAddPointer:\r | |
1096 | Status = ProcessCmdAddPointer (&LoaderEntry->Command.AddPointer,\r | |
1097 | Tracker);\r | |
1098 | break;\r | |
1099 | \r | |
1100 | case QemuLoaderCmdAddChecksum:\r | |
1101 | Status = ProcessCmdAddChecksum (&LoaderEntry->Command.AddChecksum,\r | |
1102 | Tracker);\r | |
1103 | break;\r | |
1104 | \r | |
1105 | default:\r | |
1106 | DEBUG ((EFI_D_VERBOSE, "%a: unknown loader command: 0x%x\n",\r | |
1107 | __FUNCTION__, LoaderEntry->Type));\r | |
1108 | break;\r | |
1109 | }\r | |
1110 | \r | |
1111 | if (EFI_ERROR (Status)) {\r | |
1112 | goto FreeTracker;\r | |
1113 | }\r | |
1114 | }\r | |
1115 | \r | |
1116 | InstalledKey = AllocatePool (INSTALLED_TABLES_MAX * sizeof *InstalledKey);\r | |
1117 | if (InstalledKey == NULL) {\r | |
1118 | Status = EFI_OUT_OF_RESOURCES;\r | |
1119 | goto FreeTracker;\r | |
1120 | }\r | |
1121 | \r | |
1122 | //\r | |
1123 | // second pass: identify and install ACPI tables\r | |
1124 | //\r | |
1125 | Installed = 0;\r | |
1126 | for (LoaderEntry = LoaderStart; LoaderEntry < LoaderEnd; ++LoaderEntry) {\r | |
1127 | if (LoaderEntry->Type == QemuLoaderCmdAddPointer) {\r | |
1128 | Status = Process2ndPassCmdAddPointer (&LoaderEntry->Command.AddPointer,\r | |
1129 | Tracker, AcpiProtocol, InstalledKey, &Installed);\r | |
1130 | if (EFI_ERROR (Status)) {\r | |
1131 | break;\r | |
1132 | }\r | |
1133 | }\r | |
1134 | }\r | |
1135 | \r | |
1136 | if (EFI_ERROR (Status)) {\r | |
1137 | //\r | |
1138 | // roll back partial installation\r | |
1139 | //\r | |
1140 | while (Installed > 0) {\r | |
1141 | --Installed;\r | |
1142 | AcpiProtocol->UninstallAcpiTable (AcpiProtocol, InstalledKey[Installed]);\r | |
1143 | }\r | |
1144 | } else {\r | |
1145 | DEBUG ((EFI_D_INFO, "%a: installed %d tables\n", __FUNCTION__, Installed));\r | |
1146 | }\r | |
1147 | \r | |
1148 | FreePool (InstalledKey);\r | |
1149 | \r | |
1150 | FreeTracker:\r | |
1151 | //\r | |
1152 | // Tear down the tracker infrastructure. Each fw_cfg blob will be left in\r | |
1153 | // place only if we're exiting with success and the blob hosts data that is\r | |
1154 | // not directly part of some ACPI table.\r | |
1155 | //\r | |
1156 | for (TrackerEntry = OrderedCollectionMin (Tracker); TrackerEntry != NULL;\r | |
1157 | TrackerEntry = TrackerEntry2) {\r | |
1158 | VOID *UserStruct;\r | |
1159 | BLOB *Blob;\r | |
1160 | \r | |
1161 | TrackerEntry2 = OrderedCollectionNext (TrackerEntry);\r | |
1162 | OrderedCollectionDelete (Tracker, TrackerEntry, &UserStruct);\r | |
1163 | Blob = UserStruct;\r | |
1164 | \r | |
1165 | if (EFI_ERROR (Status) || Blob->HostsOnlyTableData) {\r | |
1166 | DEBUG ((EFI_D_VERBOSE, "%a: freeing \"%a\"\n", __FUNCTION__,\r | |
1167 | Blob->File));\r | |
1168 | gBS->FreePages ((UINTN)Blob->Base, EFI_SIZE_TO_PAGES (Blob->Size));\r | |
1169 | }\r | |
1170 | FreePool (Blob);\r | |
1171 | }\r | |
1172 | OrderedCollectionUninit (Tracker);\r | |
1173 | \r | |
1174 | FreeLoader:\r | |
1175 | FreePool (LoaderStart);\r | |
1176 | \r | |
1177 | return Status;\r | |
96bbdbc8 | 1178 | }\r |