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a6eaba4d 1/** @file\r
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2 SRAT table parser\r
3\r
4 Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.\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
13 @par Reference(s):\r
14 - ACPI 6.2 Specification - Errata A, September 2017\r
15**/\r
16\r
17#include <IndustryStandard/Acpi.h>\r
18#include <Library/PrintLib.h>\r
19#include <Library/UefiLib.h>\r
20#include "AcpiParser.h"\r
21#include "AcpiTableParser.h"\r
22\r
23// Local Variables\r
24STATIC CONST UINT8* SratRAType;\r
25STATIC CONST UINT8* SratRALength;\r
26STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;\r
27\r
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28/**\r
29 This function validates the Reserved field in the SRAT table header.\r
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30\r
31 @param [in] Ptr Pointer to the start of the field data.\r
32 @param [in] Context Pointer to context specific information e.g. this\r
33 could be a pointer to the ACPI table header.\r
a6eaba4d 34**/\r
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35STATIC\r
36VOID\r
37EFIAPI\r
38ValidateSratReserved (\r
39 IN UINT8* Ptr,\r
40 IN VOID* Context\r
41 );\r
42\r
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43/**\r
44 This function traces the APIC Proximity Domain field.\r
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45\r
46 @param [in] Format Format string for tracing the data.\r
47 @param [in] Ptr Pointer to the start of the buffer.\r
a6eaba4d 48**/\r
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49STATIC\r
50VOID\r
7343bc80 51EFIAPI\r
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52DumpSratApicProximity (\r
53 IN CONST CHAR16* Format,\r
54 IN UINT8* Ptr\r
55 );\r
56\r
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57/**\r
58 An ACPI_PARSER array describing the SRAT Table.\r
59**/\r
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60STATIC CONST ACPI_PARSER SratParser[] = {\r
61 PARSE_ACPI_HEADER (&AcpiHdrInfo),\r
62 {L"Reserved", 4, 36, L"0x%x", NULL, NULL, ValidateSratReserved, NULL},\r
63 {L"Reserved", 8, 40, L"0x%lx", NULL, NULL, NULL, NULL}\r
64};\r
65\r
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66/**\r
67 An ACPI_PARSER array describing the Resource Allocation structure header.\r
68**/\r
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69STATIC CONST ACPI_PARSER SratResourceAllocationParser[] = {\r
70 {L"Type", 1, 0, NULL, NULL, (VOID**)&SratRAType, NULL, NULL},\r
71 {L"Length", 1, 1, NULL, NULL, (VOID**)&SratRALength, NULL, NULL}\r
72};\r
73\r
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74/**\r
75 An ACPI_PARSER array describing the GICC Affinity structure.\r
76**/\r
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77STATIC CONST ACPI_PARSER SratGicCAffinityParser[] = {\r
78 {L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},\r
79 {L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},\r
80\r
81 {L"Proximity Domain", 4, 2, L"0x%x", NULL, NULL, NULL, NULL},\r
82 {L"ACPI Processor UID", 4, 6, L"0x%x", NULL, NULL, NULL, NULL},\r
83 {L"Flags", 4, 10, L"0x%x", NULL, NULL, NULL, NULL},\r
84 {L"Clock Domain", 4, 14, L"0x%x", NULL, NULL, NULL, NULL}\r
85};\r
86\r
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87/**\r
88 An ACPI_PARSER array describing the GIC ITS Affinity structure.\r
89**/\r
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90STATIC CONST ACPI_PARSER SratGicITSAffinityParser[] = {\r
91 {L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},\r
92 {L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},\r
93\r
94 {L"Proximity Domain", 4, 2, L"0x%x", NULL, NULL, NULL, NULL},\r
95 {L"Reserved", 2, 6, L"0x%x", NULL, NULL, NULL, NULL},\r
96 {L"ITS Id", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},\r
97};\r
98\r
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99/**\r
100 An ACPI_PARSER array describing the Memory Affinity structure.\r
101**/\r
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102STATIC CONST ACPI_PARSER SratMemAffinityParser[] = {\r
103 {L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},\r
104 {L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},\r
105\r
106 {L"Proximity Domain", 4, 2, L"0x%x", NULL, NULL, NULL, NULL},\r
107 {L"Reserved", 2, 6, L"0x%x", NULL, NULL, NULL, NULL},\r
108 {L"Base Address Low", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},\r
109 {L"Base Address High", 4, 12, L"0x%x", NULL, NULL, NULL, NULL},\r
110 {L"Length Low", 4, 16, L"0x%x", NULL, NULL, NULL, NULL},\r
111 {L"Length High", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
112 {L"Reserved", 4, 24, L"0x%x", NULL, NULL, NULL, NULL},\r
113 {L"Flags", 4, 28, L"0x%x", NULL, NULL, NULL, NULL},\r
114 {L"Reserved", 8, 32, L"0x%lx", NULL, NULL, NULL, NULL}\r
115};\r
116\r
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117/**\r
118 An ACPI_PARSER array describing the APIC/SAPIC Affinity structure.\r
119**/\r
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120STATIC CONST ACPI_PARSER SratApciSapicAffinityParser[] = {\r
121 {L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},\r
122 {L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},\r
123\r
124 {L"Proximity Domain [7:0]", 1, 2, L"0x%x", NULL, NULL, NULL, NULL},\r
125 {L"APIC ID", 1, 3, L"0x%x", NULL, NULL, NULL, NULL},\r
126 {L"Flags", 4, 4, L"0x%x", NULL, NULL, NULL, NULL},\r
127 {L"Local SAPIC EID", 1, 8, L"0x%x", NULL, NULL, NULL, NULL},\r
128 {L"Proximity Domain [31:8]", 3, 9, L"0x%x", DumpSratApicProximity,\r
129 NULL, NULL, NULL},\r
130 {L"Clock Domain", 4, 12, L"0x%x", NULL, NULL, NULL, NULL}\r
131};\r
132\r
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133/**\r
134 An ACPI_PARSER array describing the Processor Local x2APIC Affinity structure.\r
135**/\r
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136STATIC CONST ACPI_PARSER SratX2ApciAffinityParser[] = {\r
137 {L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},\r
138 {L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},\r
139\r
140 {L"Reserved", 2, 2, L"0x%x", NULL, NULL, NULL, NULL},\r
141 {L"Proximity Domain", 4, 4, L"0x%x", NULL, NULL, NULL, NULL},\r
142 {L"X2APIC ID", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},\r
143 {L"Flags", 4, 12, L"0x%x", NULL, NULL, NULL, NULL},\r
144 {L"Clock Domain", 4, 16, L"0x%x", NULL, NULL, NULL, NULL},\r
145 {L"Reserved", 4, 20, L"0x%x", NULL, NULL, NULL, NULL}\r
146};\r
147\r
148/** This function validates the Reserved field in the SRAT table header.\r
149\r
150 @param [in] Ptr Pointer to the start of the field data.\r
151 @param [in] Context Pointer to context specific information e.g. this\r
152 could be a pointer to the ACPI table header.\r
a6eaba4d 153**/\r
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154STATIC\r
155VOID\r
156EFIAPI\r
157ValidateSratReserved (\r
158 IN UINT8* Ptr,\r
159 IN VOID* Context\r
160 )\r
161{\r
162 if (*(UINT32*)Ptr != 1) {\r
163 IncrementErrorCount ();\r
164 Print (L"\nERROR: Reserved should be 1 for backward compatibility.\n");\r
165 }\r
166}\r
167\r
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168/**\r
169 This function traces the APIC Proximity Domain field.\r
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170\r
171 @param [in] Format Format string for tracing the data.\r
172 @param [in] Ptr Pointer to the start of the buffer.\r
a6eaba4d 173**/\r
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174STATIC\r
175VOID\r
7343bc80 176EFIAPI\r
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177DumpSratApicProximity (\r
178 IN CONST CHAR16* Format,\r
179 IN UINT8* Ptr\r
180 )\r
181{\r
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182 UINT32 ProximityDomain;\r
183\r
184 ProximityDomain = Ptr[0] | (Ptr[1] << 8) | (Ptr[2] << 16);\r
185\r
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186 Print (Format, ProximityDomain);\r
187}\r
188\r
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189/**\r
190 This function parses the ACPI SRAT table.\r
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191 When trace is enabled this function parses the SRAT table and\r
192 traces the ACPI table fields.\r
193\r
194 This function parses the following Resource Allocation Structures:\r
195 - Processor Local APIC/SAPIC Affinity Structure\r
196 - Memory Affinity Structure\r
197 - Processor Local x2APIC Affinity Structure\r
198 - GICC Affinity Structure\r
199\r
200 This function also performs validation of the ACPI table fields.\r
201\r
202 @param [in] Trace If TRUE, trace the ACPI fields.\r
203 @param [in] Ptr Pointer to the start of the buffer.\r
204 @param [in] AcpiTableLength Length of the ACPI table.\r
205 @param [in] AcpiTableRevision Revision of the ACPI table.\r
a6eaba4d 206**/\r
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207VOID\r
208EFIAPI\r
209ParseAcpiSrat (\r
210 IN BOOLEAN Trace,\r
211 IN UINT8* Ptr,\r
212 IN UINT32 AcpiTableLength,\r
213 IN UINT8 AcpiTableRevision\r
214 )\r
215{\r
216 UINT32 Offset;\r
217 UINT8* ResourcePtr;\r
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218 UINT32 GicCAffinityIndex;\r
219 UINT32 GicITSAffinityIndex;\r
220 UINT32 MemoryAffinityIndex;\r
221 UINT32 ApicSapicAffinityIndex;\r
222 UINT32 X2ApicAffinityIndex;\r
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223 CHAR8 Buffer[80]; // Used for AsciiName param of ParseAcpi\r
224\r
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225 GicCAffinityIndex = 0;\r
226 GicITSAffinityIndex = 0;\r
227 MemoryAffinityIndex = 0;\r
228 ApicSapicAffinityIndex = 0;\r
229 X2ApicAffinityIndex = 0;\r
230\r
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231 if (!Trace) {\r
232 return;\r
233 }\r
234\r
235 Offset = ParseAcpi (\r
236 TRUE,\r
237 0,\r
238 "SRAT",\r
239 Ptr,\r
240 AcpiTableLength,\r
241 PARSER_PARAMS (SratParser)\r
242 );\r
243 ResourcePtr = Ptr + Offset;\r
244\r
245 while (Offset < AcpiTableLength) {\r
246 ParseAcpi (\r
247 FALSE,\r
248 0,\r
249 NULL,\r
250 ResourcePtr,\r
251 2, // The length is 1 byte at offset 1\r
252 PARSER_PARAMS (SratResourceAllocationParser)\r
253 );\r
254\r
255 switch (*SratRAType) {\r
256 case EFI_ACPI_6_2_GICC_AFFINITY:\r
257 AsciiSPrint (\r
258 Buffer,\r
259 sizeof (Buffer),\r
260 "GICC Affinity Structure [%d]",\r
261 GicCAffinityIndex++\r
262 );\r
263 ParseAcpi (\r
264 TRUE,\r
265 2,\r
266 Buffer,\r
267 ResourcePtr,\r
268 *SratRALength,\r
269 PARSER_PARAMS (SratGicCAffinityParser)\r
270 );\r
271 break;\r
272\r
273 case EFI_ACPI_6_2_GIC_ITS_AFFINITY:\r
274 AsciiSPrint (\r
275 Buffer,\r
276 sizeof (Buffer),\r
277 "GIC ITS Affinity Structure [%d]",\r
278 GicITSAffinityIndex++\r
279 );\r
280 ParseAcpi (\r
281 TRUE,\r
282 2,\r
283 Buffer,\r
284 ResourcePtr,\r
285 *SratRALength,\r
286 PARSER_PARAMS (SratGicITSAffinityParser)\r
287 );\r
288 break;\r
289\r
290 case EFI_ACPI_6_2_MEMORY_AFFINITY:\r
291 AsciiSPrint (\r
292 Buffer,\r
293 sizeof (Buffer),\r
294 "Memory Affinity Structure [%d]",\r
295 MemoryAffinityIndex++\r
296 );\r
297 ParseAcpi (\r
298 TRUE,\r
299 2,\r
300 Buffer,\r
301 ResourcePtr,\r
302 *SratRALength,\r
303 PARSER_PARAMS (SratMemAffinityParser)\r
304 );\r
305 break;\r
306\r
307 case EFI_ACPI_6_2_PROCESSOR_LOCAL_APIC_SAPIC_AFFINITY:\r
308 AsciiSPrint (\r
309 Buffer,\r
310 sizeof (Buffer),\r
311 "APIC/SAPIC Affinity Structure [%d]",\r
312 ApicSapicAffinityIndex++\r
313 );\r
314 ParseAcpi (\r
315 TRUE,\r
316 2,\r
317 Buffer,\r
318 ResourcePtr,\r
319 *SratRALength,\r
320 PARSER_PARAMS (SratApciSapicAffinityParser)\r
321 );\r
322 break;\r
323\r
324 case EFI_ACPI_6_2_PROCESSOR_LOCAL_X2APIC_AFFINITY:\r
325 AsciiSPrint (\r
326 Buffer,\r
327 sizeof (Buffer),\r
328 "X2APIC Affinity Structure [%d]",\r
329 X2ApicAffinityIndex++\r
330 );\r
331 ParseAcpi (\r
332 TRUE,\r
333 2,\r
334 Buffer,\r
335 ResourcePtr,\r
336 *SratRALength,\r
337 PARSER_PARAMS (SratX2ApciAffinityParser)\r
338 );\r
339 break;\r
340\r
341 default:\r
342 IncrementErrorCount ();\r
343 Print (L"ERROR: Unknown SRAT Affinity type = 0x%x\n", *SratRAType);\r
344 break;\r
345 }\r
346\r
347 ResourcePtr += (*SratRALength);\r
348 Offset += (*SratRALength);\r
349 }\r
350}\r