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522203de | 1 | /** @file\r |
2 | OVMF ACPI QEMU support\r | |
3 | \r | |
4 | Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
253a2ea7 | 13 | **/\r |
522203de | 14 | \r |
15 | #include "AcpiPlatform.h"\r | |
255b4184 | 16 | #include <Library/BaseMemoryLib.h>\r |
17 | #include <Library/MemoryAllocationLib.h>\r | |
522203de | 18 | #include <Library/QemuFwCfgLib.h>\r |
57c0beb6 | 19 | #include <Library/DxeServicesTableLib.h>\r |
522203de | 20 | \r |
21 | \r | |
22 | BOOLEAN\r | |
23 | QemuDetected (\r | |
24 | VOID\r | |
25 | )\r | |
26 | {\r | |
27 | if (!QemuFwCfgIsAvailable ()) {\r | |
28 | return FALSE;\r | |
29 | }\r | |
30 | \r | |
31 | return TRUE;\r | |
32 | }\r | |
33 | \r | |
34 | \r | |
255b4184 | 35 | STATIC\r |
36 | EFI_STATUS\r | |
37 | EFIAPI\r | |
38 | QemuInstallAcpiMadtTable (\r | |
39 | IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,\r | |
40 | IN VOID *AcpiTableBuffer,\r | |
41 | IN UINTN AcpiTableBufferSize,\r | |
42 | OUT UINTN *TableKey\r | |
43 | )\r | |
44 | {\r | |
45 | EFI_STATUS Status;\r | |
46 | UINTN Count;\r | |
47 | UINTN Loop;\r | |
48 | EFI_ACPI_DESCRIPTION_HEADER *Hdr;\r | |
49 | UINTN NewBufferSize;\r | |
50 | EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE *LocalApic;\r | |
51 | \r | |
52 | QemuFwCfgSelectItem (QemuFwCfgItemSmpCpuCount);\r | |
53 | Count = (UINTN) QemuFwCfgRead16 ();\r | |
54 | ASSERT (Count >= 1);\r | |
55 | \r | |
56 | if (Count == 1) {\r | |
57 | //\r | |
58 | // The pre-built MADT table covers the single CPU case\r | |
59 | //\r | |
60 | return InstallAcpiTable (\r | |
61 | AcpiProtocol,\r | |
62 | AcpiTableBuffer,\r | |
63 | AcpiTableBufferSize,\r | |
64 | TableKey\r | |
65 | );\r | |
66 | }\r | |
67 | \r | |
68 | //\r | |
69 | // We need to add additional Local APIC entries to the MADT\r | |
70 | //\r | |
71 | NewBufferSize = AcpiTableBufferSize + ((Count - 1) * sizeof (*LocalApic));\r | |
72 | Hdr = (EFI_ACPI_DESCRIPTION_HEADER*) AllocatePool (NewBufferSize);\r | |
73 | ASSERT (Hdr != NULL);\r | |
74 | \r | |
75 | CopyMem (Hdr, AcpiTableBuffer, AcpiTableBufferSize);\r | |
76 | \r | |
77 | LocalApic = (EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE*)\r | |
78 | (((UINT8*) Hdr) + AcpiTableBufferSize);\r | |
79 | \r | |
80 | //\r | |
81 | // Add Local APIC entries for the APs to the MADT\r | |
82 | //\r | |
83 | for (Loop = 1; Loop < Count; Loop++) {\r | |
84 | LocalApic->Type = EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC;\r | |
85 | LocalApic->Length = sizeof (*LocalApic);\r | |
75ccc2b2 | 86 | LocalApic->AcpiProcessorId = (UINT8) Loop;\r |
87 | LocalApic->ApicId = (UINT8) Loop;\r | |
255b4184 | 88 | LocalApic->Flags = 1;\r |
89 | LocalApic++;\r | |
90 | }\r | |
91 | \r | |
75ccc2b2 | 92 | Hdr->Length = (UINT32) NewBufferSize;\r |
255b4184 | 93 | \r |
94 | Status = InstallAcpiTable (AcpiProtocol, Hdr, NewBufferSize, TableKey);\r | |
95 | \r | |
96 | FreePool (Hdr);\r | |
97 | \r | |
98 | return Status;\r | |
99 | }\r | |
100 | \r | |
101 | \r | |
253a2ea7 | 102 | #pragma pack(1)\r |
103 | \r | |
104 | typedef struct {\r | |
105 | UINT64 Base;\r | |
106 | UINT64 End;\r | |
107 | UINT64 Length;\r | |
108 | } PCI_WINDOW;\r | |
109 | \r | |
110 | typedef struct {\r | |
111 | PCI_WINDOW PciWindow32;\r | |
112 | PCI_WINDOW PciWindow64;\r | |
113 | } FIRMWARE_DATA;\r | |
114 | \r | |
115 | #pragma pack()\r | |
116 | \r | |
117 | \r | |
118 | STATIC\r | |
119 | EFI_STATUS\r | |
120 | EFIAPI\r | |
121 | PopulateFwData(\r | |
122 | OUT FIRMWARE_DATA *FwData\r | |
123 | )\r | |
124 | {\r | |
57c0beb6 | 125 | EFI_STATUS Status;\r |
126 | UINTN NumDesc;\r | |
127 | EFI_GCD_MEMORY_SPACE_DESCRIPTOR *AllDesc;\r | |
128 | \r | |
129 | Status = gDS->GetMemorySpaceMap (&NumDesc, &AllDesc);\r | |
130 | if (Status == EFI_SUCCESS) {\r | |
131 | UINT64 NonMmio32MaxExclTop;\r | |
132 | UINT64 Mmio32MinBase;\r | |
133 | UINT64 Mmio32MaxExclTop;\r | |
134 | UINTN CurDesc;\r | |
135 | \r | |
136 | Status = EFI_UNSUPPORTED;\r | |
137 | \r | |
138 | NonMmio32MaxExclTop = 0;\r | |
139 | Mmio32MinBase = BASE_4GB;\r | |
140 | Mmio32MaxExclTop = 0;\r | |
141 | \r | |
142 | for (CurDesc = 0; CurDesc < NumDesc; ++CurDesc) {\r | |
143 | CONST EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Desc;\r | |
144 | UINT64 ExclTop;\r | |
145 | \r | |
146 | Desc = &AllDesc[CurDesc];\r | |
147 | ExclTop = Desc->BaseAddress + Desc->Length;\r | |
148 | \r | |
149 | if (ExclTop <= BASE_4GB) {\r | |
150 | switch (Desc->GcdMemoryType) {\r | |
151 | case EfiGcdMemoryTypeNonExistent:\r | |
152 | break;\r | |
153 | \r | |
154 | case EfiGcdMemoryTypeReserved:\r | |
155 | case EfiGcdMemoryTypeSystemMemory:\r | |
156 | if (NonMmio32MaxExclTop < ExclTop) {\r | |
157 | NonMmio32MaxExclTop = ExclTop;\r | |
158 | }\r | |
159 | break;\r | |
160 | \r | |
161 | case EfiGcdMemoryTypeMemoryMappedIo:\r | |
162 | if (Mmio32MinBase > Desc->BaseAddress) {\r | |
163 | Mmio32MinBase = Desc->BaseAddress;\r | |
164 | }\r | |
165 | if (Mmio32MaxExclTop < ExclTop) {\r | |
166 | Mmio32MaxExclTop = ExclTop;\r | |
167 | }\r | |
168 | break;\r | |
169 | \r | |
170 | default:\r | |
171 | ASSERT(0);\r | |
172 | }\r | |
173 | }\r | |
174 | }\r | |
175 | \r | |
176 | if (Mmio32MinBase < NonMmio32MaxExclTop) {\r | |
177 | Mmio32MinBase = NonMmio32MaxExclTop;\r | |
178 | }\r | |
179 | \r | |
180 | if (Mmio32MinBase < Mmio32MaxExclTop) {\r | |
181 | FwData->PciWindow32.Base = Mmio32MinBase;\r | |
182 | FwData->PciWindow32.End = Mmio32MaxExclTop - 1;\r | |
183 | FwData->PciWindow32.Length = Mmio32MaxExclTop - Mmio32MinBase;\r | |
184 | \r | |
185 | FwData->PciWindow64.Base = 0;\r | |
186 | FwData->PciWindow64.End = 0;\r | |
187 | FwData->PciWindow64.Length = 0;\r | |
188 | \r | |
189 | Status = EFI_SUCCESS;\r | |
190 | }\r | |
191 | \r | |
192 | FreePool (AllDesc);\r | |
193 | }\r | |
194 | \r | |
195 | DEBUG ((\r | |
196 | DEBUG_INFO,\r | |
197 | "ACPI PciWindow32: Base=0x%08lx End=0x%08lx Length=0x%08lx\n",\r | |
198 | FwData->PciWindow32.Base,\r | |
199 | FwData->PciWindow32.End,\r | |
200 | FwData->PciWindow32.Length\r | |
201 | ));\r | |
202 | DEBUG ((\r | |
203 | DEBUG_INFO,\r | |
204 | "ACPI PciWindow64: Base=0x%08lx End=0x%08lx Length=0x%08lx\n",\r | |
205 | FwData->PciWindow64.Base,\r | |
206 | FwData->PciWindow64.End,\r | |
207 | FwData->PciWindow64.Length\r | |
208 | ));\r | |
209 | \r | |
210 | return Status;\r | |
253a2ea7 | 211 | }\r |
212 | \r | |
213 | \r | |
214 | STATIC\r | |
215 | EFI_STATUS\r | |
216 | EFIAPI\r | |
217 | QemuInstallAcpiSsdtTable (\r | |
218 | IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,\r | |
219 | IN VOID *AcpiTableBuffer,\r | |
220 | IN UINTN AcpiTableBufferSize,\r | |
221 | OUT UINTN *TableKey\r | |
222 | )\r | |
223 | {\r | |
224 | EFI_STATUS Status;\r | |
225 | FIRMWARE_DATA *FwData;\r | |
226 | \r | |
227 | Status = EFI_OUT_OF_RESOURCES;\r | |
228 | \r | |
229 | FwData = AllocateReservedPool (sizeof (*FwData));\r | |
230 | if (FwData != NULL) {\r | |
231 | UINTN SsdtSize;\r | |
232 | UINT8 *Ssdt;\r | |
233 | \r | |
234 | SsdtSize = AcpiTableBufferSize + 17;\r | |
235 | Ssdt = AllocatePool (SsdtSize);\r | |
236 | \r | |
237 | if (Ssdt != NULL) {\r | |
238 | Status = PopulateFwData (FwData);\r | |
239 | \r | |
240 | if (Status == EFI_SUCCESS) {\r | |
241 | UINT8 *SsdtPtr;\r | |
242 | \r | |
243 | SsdtPtr = Ssdt;\r | |
244 | \r | |
245 | CopyMem (SsdtPtr, AcpiTableBuffer, AcpiTableBufferSize);\r | |
246 | SsdtPtr += AcpiTableBufferSize;\r | |
247 | \r | |
248 | //\r | |
249 | // build "OperationRegion(FWDT, SystemMemory, 0x12345678, 0x87654321)"\r | |
250 | //\r | |
251 | *(SsdtPtr++) = 0x5B; // ExtOpPrefix\r | |
252 | *(SsdtPtr++) = 0x80; // OpRegionOp\r | |
253 | *(SsdtPtr++) = 'F';\r | |
254 | *(SsdtPtr++) = 'W';\r | |
255 | *(SsdtPtr++) = 'D';\r | |
256 | *(SsdtPtr++) = 'T';\r | |
257 | *(SsdtPtr++) = 0x00; // SystemMemory\r | |
258 | *(SsdtPtr++) = 0x0C; // DWordPrefix\r | |
259 | \r | |
260 | //\r | |
261 | // no virtual addressing yet, take the four least significant bytes\r | |
262 | //\r | |
263 | CopyMem(SsdtPtr, &FwData, 4);\r | |
264 | SsdtPtr += 4;\r | |
265 | \r | |
266 | *(SsdtPtr++) = 0x0C; // DWordPrefix\r | |
267 | \r | |
268 | *(UINT32*) SsdtPtr = sizeof (*FwData);\r | |
269 | SsdtPtr += 4;\r | |
270 | \r | |
271 | ASSERT(SsdtPtr - Ssdt == SsdtSize);\r | |
272 | ((EFI_ACPI_DESCRIPTION_HEADER *) Ssdt)->Length = SsdtSize;\r | |
273 | Status = InstallAcpiTable (AcpiProtocol, Ssdt, SsdtSize, TableKey);\r | |
274 | }\r | |
275 | \r | |
276 | FreePool(Ssdt);\r | |
277 | }\r | |
278 | \r | |
279 | if (Status != EFI_SUCCESS) {\r | |
280 | FreePool(FwData);\r | |
281 | }\r | |
282 | }\r | |
283 | \r | |
284 | return Status;\r | |
285 | }\r | |
286 | \r | |
287 | \r | |
522203de | 288 | EFI_STATUS\r |
289 | EFIAPI\r | |
290 | QemuInstallAcpiTable (\r | |
291 | IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,\r | |
292 | IN VOID *AcpiTableBuffer,\r | |
293 | IN UINTN AcpiTableBufferSize,\r | |
294 | OUT UINTN *TableKey\r | |
295 | )\r | |
296 | {\r | |
255b4184 | 297 | EFI_ACPI_DESCRIPTION_HEADER *Hdr;\r |
298 | EFI_ACPI_TABLE_INSTALL_ACPI_TABLE TableInstallFunction;\r | |
299 | \r | |
300 | Hdr = (EFI_ACPI_DESCRIPTION_HEADER*) AcpiTableBuffer;\r | |
301 | switch (Hdr->Signature) {\r | |
302 | case EFI_ACPI_1_0_APIC_SIGNATURE:\r | |
303 | TableInstallFunction = QemuInstallAcpiMadtTable;\r | |
304 | break;\r | |
253a2ea7 | 305 | case EFI_ACPI_1_0_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:\r |
306 | TableInstallFunction = QemuInstallAcpiSsdtTable;\r | |
307 | break;\r | |
255b4184 | 308 | default:\r |
309 | TableInstallFunction = InstallAcpiTable;\r | |
310 | }\r | |
311 | \r | |
312 | return TableInstallFunction (\r | |
522203de | 313 | AcpiProtocol,\r |
314 | AcpiTableBuffer,\r | |
315 | AcpiTableBufferSize,\r | |
316 | TableKey\r | |
317 | );\r | |
318 | }\r | |
319 | \r |