4 Copyright (c) 2016 - 2019, ARM Limited. All rights reserved.
5 SPDX-License-Identifier: BSD-2-Clause-Patent
8 - ACPI 6.2 Specification - Errata A, September 2017
11 #include <IndustryStandard/Acpi.h>
12 #include <Library/PrintLib.h>
13 #include <Library/UefiLib.h>
14 #include "AcpiParser.h"
15 #include "AcpiTableParser.h"
18 STATIC CONST UINT8
* SratRAType
;
19 STATIC CONST UINT8
* SratRALength
;
20 STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo
;
23 This function validates the Reserved field in the SRAT table header.
25 @param [in] Ptr Pointer to the start of the field data.
26 @param [in] Context Pointer to context specific information e.g. this
27 could be a pointer to the ACPI table header.
32 ValidateSratReserved (
37 if (*(UINT32
*)Ptr
!= 1) {
38 IncrementErrorCount ();
39 Print (L
"\nERROR: Reserved should be 1 for backward compatibility.\n");
44 This function traces the APIC Proximity Domain field.
46 @param [in] Format Format string for tracing the data.
47 @param [in] Ptr Pointer to the start of the buffer.
52 DumpSratApicProximity (
53 IN CONST CHAR16
* Format
,
57 UINT32 ProximityDomain
;
59 ProximityDomain
= Ptr
[0] | (Ptr
[1] << 8) | (Ptr
[2] << 16);
61 Print (Format
, ProximityDomain
);
65 An ACPI_PARSER array describing the SRAT Table.
67 STATIC CONST ACPI_PARSER SratParser
[] = {
68 PARSE_ACPI_HEADER (&AcpiHdrInfo
),
69 {L
"Reserved", 4, 36, L
"0x%x", NULL
, NULL
, ValidateSratReserved
, NULL
},
70 {L
"Reserved", 8, 40, L
"0x%lx", NULL
, NULL
, NULL
, NULL
}
74 An ACPI_PARSER array describing the Resource Allocation structure header.
76 STATIC CONST ACPI_PARSER SratResourceAllocationParser
[] = {
77 {L
"Type", 1, 0, NULL
, NULL
, (VOID
**)&SratRAType
, NULL
, NULL
},
78 {L
"Length", 1, 1, NULL
, NULL
, (VOID
**)&SratRALength
, NULL
, NULL
}
82 An ACPI_PARSER array describing the GICC Affinity structure.
84 STATIC CONST ACPI_PARSER SratGicCAffinityParser
[] = {
85 {L
"Type", 1, 0, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
86 {L
"Length", 1, 1, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
88 {L
"Proximity Domain", 4, 2, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
89 {L
"ACPI Processor UID", 4, 6, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
90 {L
"Flags", 4, 10, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
91 {L
"Clock Domain", 4, 14, L
"0x%x", NULL
, NULL
, NULL
, NULL
}
95 An ACPI_PARSER array describing the GIC ITS Affinity structure.
97 STATIC CONST ACPI_PARSER SratGicITSAffinityParser
[] = {
98 {L
"Type", 1, 0, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
99 {L
"Length", 1, 1, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
101 {L
"Proximity Domain", 4, 2, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
102 {L
"Reserved", 2, 6, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
103 {L
"ITS Id", 4, 8, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
107 An ACPI_PARSER array describing the Memory Affinity structure.
109 STATIC CONST ACPI_PARSER SratMemAffinityParser
[] = {
110 {L
"Type", 1, 0, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
111 {L
"Length", 1, 1, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
113 {L
"Proximity Domain", 4, 2, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
114 {L
"Reserved", 2, 6, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
115 {L
"Base Address Low", 4, 8, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
116 {L
"Base Address High", 4, 12, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
117 {L
"Length Low", 4, 16, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
118 {L
"Length High", 4, 20, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
119 {L
"Reserved", 4, 24, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
120 {L
"Flags", 4, 28, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
121 {L
"Reserved", 8, 32, L
"0x%lx", NULL
, NULL
, NULL
, NULL
}
125 An ACPI_PARSER array describing the APIC/SAPIC Affinity structure.
127 STATIC CONST ACPI_PARSER SratApciSapicAffinityParser
[] = {
128 {L
"Type", 1, 0, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
129 {L
"Length", 1, 1, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
131 {L
"Proximity Domain [7:0]", 1, 2, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
132 {L
"APIC ID", 1, 3, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
133 {L
"Flags", 4, 4, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
134 {L
"Local SAPIC EID", 1, 8, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
135 {L
"Proximity Domain [31:8]", 3, 9, L
"0x%x", DumpSratApicProximity
,
137 {L
"Clock Domain", 4, 12, L
"0x%x", NULL
, NULL
, NULL
, NULL
}
141 An ACPI_PARSER array describing the Processor Local x2APIC Affinity structure.
143 STATIC CONST ACPI_PARSER SratX2ApciAffinityParser
[] = {
144 {L
"Type", 1, 0, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
145 {L
"Length", 1, 1, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
147 {L
"Reserved", 2, 2, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
148 {L
"Proximity Domain", 4, 4, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
149 {L
"X2APIC ID", 4, 8, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
150 {L
"Flags", 4, 12, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
151 {L
"Clock Domain", 4, 16, L
"0x%x", NULL
, NULL
, NULL
, NULL
},
152 {L
"Reserved", 4, 20, L
"0x%x", NULL
, NULL
, NULL
, NULL
}
156 This function parses the ACPI SRAT table.
157 When trace is enabled this function parses the SRAT table and
158 traces the ACPI table fields.
160 This function parses the following Resource Allocation Structures:
161 - Processor Local APIC/SAPIC Affinity Structure
162 - Memory Affinity Structure
163 - Processor Local x2APIC Affinity Structure
164 - GICC Affinity Structure
166 This function also performs validation of the ACPI table fields.
168 @param [in] Trace If TRUE, trace the ACPI fields.
169 @param [in] Ptr Pointer to the start of the buffer.
170 @param [in] AcpiTableLength Length of the ACPI table.
171 @param [in] AcpiTableRevision Revision of the ACPI table.
178 IN UINT32 AcpiTableLength
,
179 IN UINT8 AcpiTableRevision
184 UINT32 GicCAffinityIndex
;
185 UINT32 GicITSAffinityIndex
;
186 UINT32 MemoryAffinityIndex
;
187 UINT32 ApicSapicAffinityIndex
;
188 UINT32 X2ApicAffinityIndex
;
189 CHAR8 Buffer
[80]; // Used for AsciiName param of ParseAcpi
191 GicCAffinityIndex
= 0;
192 GicITSAffinityIndex
= 0;
193 MemoryAffinityIndex
= 0;
194 ApicSapicAffinityIndex
= 0;
195 X2ApicAffinityIndex
= 0;
207 PARSER_PARAMS (SratParser
)
209 ResourcePtr
= Ptr
+ Offset
;
211 while (Offset
< AcpiTableLength
) {
217 2, // The length is 1 byte at offset 1
218 PARSER_PARAMS (SratResourceAllocationParser
)
221 switch (*SratRAType
) {
222 case EFI_ACPI_6_2_GICC_AFFINITY
:
226 "GICC Affinity Structure [%d]",
235 PARSER_PARAMS (SratGicCAffinityParser
)
239 case EFI_ACPI_6_2_GIC_ITS_AFFINITY
:
243 "GIC ITS Affinity Structure [%d]",
244 GicITSAffinityIndex
++
252 PARSER_PARAMS (SratGicITSAffinityParser
)
256 case EFI_ACPI_6_2_MEMORY_AFFINITY
:
260 "Memory Affinity Structure [%d]",
261 MemoryAffinityIndex
++
269 PARSER_PARAMS (SratMemAffinityParser
)
273 case EFI_ACPI_6_2_PROCESSOR_LOCAL_APIC_SAPIC_AFFINITY
:
277 "APIC/SAPIC Affinity Structure [%d]",
278 ApicSapicAffinityIndex
++
286 PARSER_PARAMS (SratApciSapicAffinityParser
)
290 case EFI_ACPI_6_2_PROCESSOR_LOCAL_X2APIC_AFFINITY
:
294 "X2APIC Affinity Structure [%d]",
295 X2ApicAffinityIndex
++
303 PARSER_PARAMS (SratX2ApciAffinityParser
)
308 IncrementErrorCount ();
309 Print (L
"ERROR: Unknown SRAT Affinity type = 0x%x\n", *SratRAType
);
313 ResourcePtr
+= (*SratRALength
);
314 Offset
+= (*SratRALength
);