xref: /openbmc/linux/include/acpi/actbl2.h (revision d87c25e8)
1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /******************************************************************************
3  *
4  * Name: actbl2.h - ACPI Table Definitions (tables not in ACPI spec)
5  *
6  * Copyright (C) 2000 - 2021, Intel Corp.
7  *
8  *****************************************************************************/
9 
10 #ifndef __ACTBL2_H__
11 #define __ACTBL2_H__
12 
13 /*******************************************************************************
14  *
15  * Additional ACPI Tables (2)
16  *
17  * These tables are not consumed directly by the ACPICA subsystem, but are
18  * included here to support device drivers and the AML disassembler.
19  *
20  ******************************************************************************/
21 
22 /*
23  * Values for description table header signatures for tables defined in this
24  * file. Useful because they make it more difficult to inadvertently type in
25  * the wrong signature.
26  */
27 #define ACPI_SIG_AGDI           "AGDI"	/* Arm Generic Diagnostic Dump and Reset Device Interface */
28 #define ACPI_SIG_BDAT           "BDAT"	/* BIOS Data ACPI Table */
29 #define ACPI_SIG_IORT           "IORT"	/* IO Remapping Table */
30 #define ACPI_SIG_IVRS           "IVRS"	/* I/O Virtualization Reporting Structure */
31 #define ACPI_SIG_LPIT           "LPIT"	/* Low Power Idle Table */
32 #define ACPI_SIG_MADT           "APIC"	/* Multiple APIC Description Table */
33 #define ACPI_SIG_MCFG           "MCFG"	/* PCI Memory Mapped Configuration table */
34 #define ACPI_SIG_MCHI           "MCHI"	/* Management Controller Host Interface table */
35 #define ACPI_SIG_MPST           "MPST"	/* Memory Power State Table */
36 #define ACPI_SIG_MSCT           "MSCT"	/* Maximum System Characteristics Table */
37 #define ACPI_SIG_MSDM           "MSDM"	/* Microsoft Data Management Table */
38 #define ACPI_SIG_NFIT           "NFIT"	/* NVDIMM Firmware Interface Table */
39 #define ACPI_SIG_NHLT           "NHLT"	/* Non HD Audio Link Table */
40 #define ACPI_SIG_PCCT           "PCCT"	/* Platform Communications Channel Table */
41 #define ACPI_SIG_PDTT           "PDTT"	/* Platform Debug Trigger Table */
42 #define ACPI_SIG_PHAT           "PHAT"	/* Platform Health Assessment Table */
43 #define ACPI_SIG_PMTT           "PMTT"	/* Platform Memory Topology Table */
44 #define ACPI_SIG_PPTT           "PPTT"	/* Processor Properties Topology Table */
45 #define ACPI_SIG_PRMT           "PRMT"	/* Platform Runtime Mechanism Table */
46 #define ACPI_SIG_RASF           "RASF"	/* RAS Feature table */
47 #define ACPI_SIG_RGRT           "RGRT"	/* Regulatory Graphics Resource Table */
48 #define ACPI_SIG_SBST           "SBST"	/* Smart Battery Specification Table */
49 #define ACPI_SIG_SDEI           "SDEI"	/* Software Delegated Exception Interface Table */
50 #define ACPI_SIG_SDEV           "SDEV"	/* Secure Devices table */
51 #define ACPI_SIG_SVKL           "SVKL"	/* Storage Volume Key Location Table */
52 #define ACPI_SIG_TDEL           "TDEL"	/* TD Event Log Table */
53 
54 /*
55  * All tables must be byte-packed to match the ACPI specification, since
56  * the tables are provided by the system BIOS.
57  */
58 #pragma pack(1)
59 
60 /*
61  * Note: C bitfields are not used for this reason:
62  *
63  * "Bitfields are great and easy to read, but unfortunately the C language
64  * does not specify the layout of bitfields in memory, which means they are
65  * essentially useless for dealing with packed data in on-disk formats or
66  * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
67  * this decision was a design error in C. Ritchie could have picked an order
68  * and stuck with it." Norman Ramsey.
69  * See http://stackoverflow.com/a/1053662/41661
70  */
71 
72 /*******************************************************************************
73  *
74  * AEST - Arm Error Source Table
75  *
76  * Conforms to: ACPI for the Armv8 RAS Extensions 1.1 Platform Design Document
77  * September 2020.
78  *
79  ******************************************************************************/
80 
81 struct acpi_table_aest {
82 	struct acpi_table_header header;
83 	void *node_array[];
84 };
85 
86 /* Common Subtable header - one per Node Structure (Subtable) */
87 
88 struct acpi_aest_hdr {
89 	u8 type;
90 	u16 length;
91 	u8 reserved;
92 	u32 node_specific_offset;
93 	u32 node_interface_offset;
94 	u32 node_interrupt_offset;
95 	u32 node_interrupt_count;
96 	u64 timestamp_rate;
97 	u64 reserved1;
98 	u64 error_injection_rate;
99 };
100 
101 /* Values for Type above */
102 
103 #define ACPI_AEST_PROCESSOR_ERROR_NODE      0
104 #define ACPI_AEST_MEMORY_ERROR_NODE         1
105 #define ACPI_AEST_SMMU_ERROR_NODE           2
106 #define ACPI_AEST_VENDOR_ERROR_NODE         3
107 #define ACPI_AEST_GIC_ERROR_NODE            4
108 #define ACPI_AEST_NODE_TYPE_RESERVED        5	/* 5 and above are reserved */
109 
110 /*
111  * AEST subtables (Error nodes)
112  */
113 
114 /* 0: Processor Error */
115 
116 typedef struct acpi_aest_processor {
117 	u32 processor_id;
118 	u8 resource_type;
119 	u8 reserved;
120 	u8 flags;
121 	u8 revision;
122 	u64 processor_affinity;
123 
124 } acpi_aest_processor;
125 
126 /* Values for resource_type above, related structs below */
127 
128 #define ACPI_AEST_CACHE_RESOURCE            0
129 #define ACPI_AEST_TLB_RESOURCE              1
130 #define ACPI_AEST_GENERIC_RESOURCE          2
131 #define ACPI_AEST_RESOURCE_RESERVED         3	/* 3 and above are reserved */
132 
133 /* 0R: Processor Cache Resource Substructure */
134 
135 typedef struct acpi_aest_processor_cache {
136 	u32 cache_reference;
137 	u32 reserved;
138 
139 } acpi_aest_processor_cache;
140 
141 /* Values for cache_type above */
142 
143 #define ACPI_AEST_CACHE_DATA                0
144 #define ACPI_AEST_CACHE_INSTRUCTION         1
145 #define ACPI_AEST_CACHE_UNIFIED             2
146 #define ACPI_AEST_CACHE_RESERVED            3	/* 3 and above are reserved */
147 
148 /* 1R: Processor TLB Resource Substructure */
149 
150 typedef struct acpi_aest_processor_tlb {
151 	u32 tlb_level;
152 	u32 reserved;
153 
154 } acpi_aest_processor_tlb;
155 
156 /* 2R: Processor Generic Resource Substructure */
157 
158 typedef struct acpi_aest_processor_generic {
159 	u32 resource;
160 
161 } acpi_aest_processor_generic;
162 
163 /* 1: Memory Error */
164 
165 typedef struct acpi_aest_memory {
166 	u32 srat_proximity_domain;
167 
168 } acpi_aest_memory;
169 
170 /* 2: Smmu Error */
171 
172 typedef struct acpi_aest_smmu {
173 	u32 iort_node_reference;
174 	u32 subcomponent_reference;
175 
176 } acpi_aest_smmu;
177 
178 /* 3: Vendor Defined */
179 
180 typedef struct acpi_aest_vendor {
181 	u32 acpi_hid;
182 	u32 acpi_uid;
183 	u8 vendor_specific_data[16];
184 
185 } acpi_aest_vendor;
186 
187 /* 4: Gic Error */
188 
189 typedef struct acpi_aest_gic {
190 	u32 interface_type;
191 	u32 instance_id;
192 
193 } acpi_aest_gic;
194 
195 /* Values for interface_type above */
196 
197 #define ACPI_AEST_GIC_CPU                   0
198 #define ACPI_AEST_GIC_DISTRIBUTOR           1
199 #define ACPI_AEST_GIC_REDISTRIBUTOR         2
200 #define ACPI_AEST_GIC_ITS                   3
201 #define ACPI_AEST_GIC_RESERVED              4	/* 4 and above are reserved */
202 
203 /* Node Interface Structure */
204 
205 typedef struct acpi_aest_node_interface {
206 	u8 type;
207 	u8 reserved[3];
208 	u32 flags;
209 	u64 address;
210 	u32 error_record_index;
211 	u32 error_record_count;
212 	u64 error_record_implemented;
213 	u64 error_status_reporting;
214 	u64 addressing_mode;
215 
216 } acpi_aest_node_interface;
217 
218 /* Values for Type field above */
219 
220 #define ACPI_AEST_NODE_SYSTEM_REGISTER      0
221 #define ACPI_AEST_NODE_MEMORY_MAPPED        1
222 #define ACPI_AEST_XFACE_RESERVED            2	/* 2 and above are reserved */
223 
224 /* Node Interrupt Structure */
225 
226 typedef struct acpi_aest_node_interrupt {
227 	u8 type;
228 	u8 reserved[2];
229 	u8 flags;
230 	u32 gsiv;
231 	u8 iort_id;
232 	u8 reserved1[3];
233 
234 } acpi_aest_node_interrupt;
235 
236 /* Values for Type field above */
237 
238 #define ACPI_AEST_NODE_FAULT_HANDLING       0
239 #define ACPI_AEST_NODE_ERROR_RECOVERY       1
240 #define ACPI_AEST_XRUPT_RESERVED            2	/* 2 and above are reserved */
241 
242 /*******************************************************************************
243  * AGDI - Arm Generic Diagnostic Dump and Reset Device Interface
244  *
245  * Conforms to "ACPI for Arm Components 1.1, Platform Design Document"
246  * ARM DEN0093 v1.1
247  *
248  ******************************************************************************/
249 struct acpi_table_agdi {
250 	struct acpi_table_header header;	/* Common ACPI table header */
251 	u8 flags;
252 	u8 reserved[3];
253 	u32 sdei_event;
254 	u32 gsiv;
255 };
256 
257 /* Mask for Flags field above */
258 
259 #define ACPI_AGDI_SIGNALING_MODE (1)
260 
261 /*******************************************************************************
262  *
263  * BDAT - BIOS Data ACPI Table
264  *
265  * Conforms to "BIOS Data ACPI Table", Interface Specification v4.0 Draft 5
266  * Nov 2020
267  *
268  ******************************************************************************/
269 
270 struct acpi_table_bdat {
271 	struct acpi_table_header header;
272 	struct acpi_generic_address gas;
273 };
274 
275 /*******************************************************************************
276  *
277  * IORT - IO Remapping Table
278  *
279  * Conforms to "IO Remapping Table System Software on ARM Platforms",
280  * Document number: ARM DEN 0049E.b, Feb 2021
281  *
282  ******************************************************************************/
283 
284 struct acpi_table_iort {
285 	struct acpi_table_header header;
286 	u32 node_count;
287 	u32 node_offset;
288 	u32 reserved;
289 };
290 
291 /*
292  * IORT subtables
293  */
294 struct acpi_iort_node {
295 	u8 type;
296 	u16 length;
297 	u8 revision;
298 	u32 identifier;
299 	u32 mapping_count;
300 	u32 mapping_offset;
301 	char node_data[1];
302 };
303 
304 /* Values for subtable Type above */
305 
306 enum acpi_iort_node_type {
307 	ACPI_IORT_NODE_ITS_GROUP = 0x00,
308 	ACPI_IORT_NODE_NAMED_COMPONENT = 0x01,
309 	ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02,
310 	ACPI_IORT_NODE_SMMU = 0x03,
311 	ACPI_IORT_NODE_SMMU_V3 = 0x04,
312 	ACPI_IORT_NODE_PMCG = 0x05,
313 	ACPI_IORT_NODE_RMR = 0x06,
314 };
315 
316 struct acpi_iort_id_mapping {
317 	u32 input_base;		/* Lowest value in input range */
318 	u32 id_count;		/* Number of IDs */
319 	u32 output_base;	/* Lowest value in output range */
320 	u32 output_reference;	/* A reference to the output node */
321 	u32 flags;
322 };
323 
324 /* Masks for Flags field above for IORT subtable */
325 
326 #define ACPI_IORT_ID_SINGLE_MAPPING (1)
327 
328 struct acpi_iort_memory_access {
329 	u32 cache_coherency;
330 	u8 hints;
331 	u16 reserved;
332 	u8 memory_flags;
333 };
334 
335 /* Values for cache_coherency field above */
336 
337 #define ACPI_IORT_NODE_COHERENT         0x00000001	/* The device node is fully coherent */
338 #define ACPI_IORT_NODE_NOT_COHERENT     0x00000000	/* The device node is not coherent */
339 
340 /* Masks for Hints field above */
341 
342 #define ACPI_IORT_HT_TRANSIENT          (1)
343 #define ACPI_IORT_HT_WRITE              (1<<1)
344 #define ACPI_IORT_HT_READ               (1<<2)
345 #define ACPI_IORT_HT_OVERRIDE           (1<<3)
346 
347 /* Masks for memory_flags field above */
348 
349 #define ACPI_IORT_MF_COHERENCY          (1)
350 #define ACPI_IORT_MF_ATTRIBUTES         (1<<1)
351 
352 /*
353  * IORT node specific subtables
354  */
355 struct acpi_iort_its_group {
356 	u32 its_count;
357 	u32 identifiers[1];	/* GIC ITS identifier array */
358 };
359 
360 struct acpi_iort_named_component {
361 	u32 node_flags;
362 	u64 memory_properties;	/* Memory access properties */
363 	u8 memory_address_limit;	/* Memory address size limit */
364 	char device_name[1];	/* Path of namespace object */
365 };
366 
367 /* Masks for Flags field above */
368 
369 #define ACPI_IORT_NC_STALL_SUPPORTED    (1)
370 #define ACPI_IORT_NC_PASID_BITS         (31<<1)
371 
372 struct acpi_iort_root_complex {
373 	u64 memory_properties;	/* Memory access properties */
374 	u32 ats_attribute;
375 	u32 pci_segment_number;
376 	u8 memory_address_limit;	/* Memory address size limit */
377 	u8 reserved[3];		/* Reserved, must be zero */
378 };
379 
380 /* Masks for ats_attribute field above */
381 
382 #define ACPI_IORT_ATS_SUPPORTED         (1)	/* The root complex ATS support */
383 #define ACPI_IORT_PRI_SUPPORTED         (1<<1)	/* The root complex PRI support */
384 #define ACPI_IORT_PASID_FWD_SUPPORTED   (1<<2)	/* The root complex PASID forward support */
385 
386 struct acpi_iort_smmu {
387 	u64 base_address;	/* SMMU base address */
388 	u64 span;		/* Length of memory range */
389 	u32 model;
390 	u32 flags;
391 	u32 global_interrupt_offset;
392 	u32 context_interrupt_count;
393 	u32 context_interrupt_offset;
394 	u32 pmu_interrupt_count;
395 	u32 pmu_interrupt_offset;
396 	u64 interrupts[1];	/* Interrupt array */
397 };
398 
399 /* Values for Model field above */
400 
401 #define ACPI_IORT_SMMU_V1               0x00000000	/* Generic SMMUv1 */
402 #define ACPI_IORT_SMMU_V2               0x00000001	/* Generic SMMUv2 */
403 #define ACPI_IORT_SMMU_CORELINK_MMU400  0x00000002	/* ARM Corelink MMU-400 */
404 #define ACPI_IORT_SMMU_CORELINK_MMU500  0x00000003	/* ARM Corelink MMU-500 */
405 #define ACPI_IORT_SMMU_CORELINK_MMU401  0x00000004	/* ARM Corelink MMU-401 */
406 #define ACPI_IORT_SMMU_CAVIUM_THUNDERX  0x00000005	/* Cavium thunder_x SMMUv2 */
407 
408 /* Masks for Flags field above */
409 
410 #define ACPI_IORT_SMMU_DVM_SUPPORTED    (1)
411 #define ACPI_IORT_SMMU_COHERENT_WALK    (1<<1)
412 
413 /* Global interrupt format */
414 
415 struct acpi_iort_smmu_gsi {
416 	u32 nsg_irpt;
417 	u32 nsg_irpt_flags;
418 	u32 nsg_cfg_irpt;
419 	u32 nsg_cfg_irpt_flags;
420 };
421 
422 struct acpi_iort_smmu_v3 {
423 	u64 base_address;	/* SMMUv3 base address */
424 	u32 flags;
425 	u32 reserved;
426 	u64 vatos_address;
427 	u32 model;
428 	u32 event_gsiv;
429 	u32 pri_gsiv;
430 	u32 gerr_gsiv;
431 	u32 sync_gsiv;
432 	u32 pxm;
433 	u32 id_mapping_index;
434 };
435 
436 /* Values for Model field above */
437 
438 #define ACPI_IORT_SMMU_V3_GENERIC           0x00000000	/* Generic SMMUv3 */
439 #define ACPI_IORT_SMMU_V3_HISILICON_HI161X  0x00000001	/* hi_silicon Hi161x SMMUv3 */
440 #define ACPI_IORT_SMMU_V3_CAVIUM_CN99XX     0x00000002	/* Cavium CN99xx SMMUv3 */
441 
442 /* Masks for Flags field above */
443 
444 #define ACPI_IORT_SMMU_V3_COHACC_OVERRIDE   (1)
445 #define ACPI_IORT_SMMU_V3_HTTU_OVERRIDE     (3<<1)
446 #define ACPI_IORT_SMMU_V3_PXM_VALID         (1<<3)
447 
448 struct acpi_iort_pmcg {
449 	u64 page0_base_address;
450 	u32 overflow_gsiv;
451 	u32 node_reference;
452 	u64 page1_base_address;
453 };
454 
455 struct acpi_iort_rmr {
456 	u32 flags;
457 	u32 rmr_count;
458 	u32 rmr_offset;
459 };
460 
461 struct acpi_iort_rmr_desc {
462 	u64 base_address;
463 	u64 length;
464 	u32 reserved;
465 };
466 
467 /*******************************************************************************
468  *
469  * IVRS - I/O Virtualization Reporting Structure
470  *        Version 1
471  *
472  * Conforms to "AMD I/O Virtualization Technology (IOMMU) Specification",
473  * Revision 1.26, February 2009.
474  *
475  ******************************************************************************/
476 
477 struct acpi_table_ivrs {
478 	struct acpi_table_header header;	/* Common ACPI table header */
479 	u32 info;		/* Common virtualization info */
480 	u64 reserved;
481 };
482 
483 /* Values for Info field above */
484 
485 #define ACPI_IVRS_PHYSICAL_SIZE     0x00007F00	/* 7 bits, physical address size */
486 #define ACPI_IVRS_VIRTUAL_SIZE      0x003F8000	/* 7 bits, virtual address size */
487 #define ACPI_IVRS_ATS_RESERVED      0x00400000	/* ATS address translation range reserved */
488 
489 /* IVRS subtable header */
490 
491 struct acpi_ivrs_header {
492 	u8 type;		/* Subtable type */
493 	u8 flags;
494 	u16 length;		/* Subtable length */
495 	u16 device_id;		/* ID of IOMMU */
496 };
497 
498 /* Values for subtable Type above */
499 
500 enum acpi_ivrs_type {
501 	ACPI_IVRS_TYPE_HARDWARE1 = 0x10,
502 	ACPI_IVRS_TYPE_HARDWARE2 = 0x11,
503 	ACPI_IVRS_TYPE_HARDWARE3 = 0x40,
504 	ACPI_IVRS_TYPE_MEMORY1 = 0x20,
505 	ACPI_IVRS_TYPE_MEMORY2 = 0x21,
506 	ACPI_IVRS_TYPE_MEMORY3 = 0x22
507 };
508 
509 /* Masks for Flags field above for IVHD subtable */
510 
511 #define ACPI_IVHD_TT_ENABLE         (1)
512 #define ACPI_IVHD_PASS_PW           (1<<1)
513 #define ACPI_IVHD_RES_PASS_PW       (1<<2)
514 #define ACPI_IVHD_ISOC              (1<<3)
515 #define ACPI_IVHD_IOTLB             (1<<4)
516 
517 /* Masks for Flags field above for IVMD subtable */
518 
519 #define ACPI_IVMD_UNITY             (1)
520 #define ACPI_IVMD_READ              (1<<1)
521 #define ACPI_IVMD_WRITE             (1<<2)
522 #define ACPI_IVMD_EXCLUSION_RANGE   (1<<3)
523 
524 /*
525  * IVRS subtables, correspond to Type in struct acpi_ivrs_header
526  */
527 
528 /* 0x10: I/O Virtualization Hardware Definition Block (IVHD) */
529 
530 struct acpi_ivrs_hardware_10 {
531 	struct acpi_ivrs_header header;
532 	u16 capability_offset;	/* Offset for IOMMU control fields */
533 	u64 base_address;	/* IOMMU control registers */
534 	u16 pci_segment_group;
535 	u16 info;		/* MSI number and unit ID */
536 	u32 feature_reporting;
537 };
538 
539 /* 0x11: I/O Virtualization Hardware Definition Block (IVHD) */
540 
541 struct acpi_ivrs_hardware_11 {
542 	struct acpi_ivrs_header header;
543 	u16 capability_offset;	/* Offset for IOMMU control fields */
544 	u64 base_address;	/* IOMMU control registers */
545 	u16 pci_segment_group;
546 	u16 info;		/* MSI number and unit ID */
547 	u32 attributes;
548 	u64 efr_register_image;
549 	u64 reserved;
550 };
551 
552 /* Masks for Info field above */
553 
554 #define ACPI_IVHD_MSI_NUMBER_MASK   0x001F	/* 5 bits, MSI message number */
555 #define ACPI_IVHD_UNIT_ID_MASK      0x1F00	/* 5 bits, unit_ID */
556 
557 /*
558  * Device Entries for IVHD subtable, appear after struct acpi_ivrs_hardware structure.
559  * Upper two bits of the Type field are the (encoded) length of the structure.
560  * Currently, only 4 and 8 byte entries are defined. 16 and 32 byte entries
561  * are reserved for future use but not defined.
562  */
563 struct acpi_ivrs_de_header {
564 	u8 type;
565 	u16 id;
566 	u8 data_setting;
567 };
568 
569 /* Length of device entry is in the top two bits of Type field above */
570 
571 #define ACPI_IVHD_ENTRY_LENGTH      0xC0
572 
573 /* Values for device entry Type field above */
574 
575 enum acpi_ivrs_device_entry_type {
576 	/* 4-byte device entries, all use struct acpi_ivrs_device4 */
577 
578 	ACPI_IVRS_TYPE_PAD4 = 0,
579 	ACPI_IVRS_TYPE_ALL = 1,
580 	ACPI_IVRS_TYPE_SELECT = 2,
581 	ACPI_IVRS_TYPE_START = 3,
582 	ACPI_IVRS_TYPE_END = 4,
583 
584 	/* 8-byte device entries */
585 
586 	ACPI_IVRS_TYPE_PAD8 = 64,
587 	ACPI_IVRS_TYPE_NOT_USED = 65,
588 	ACPI_IVRS_TYPE_ALIAS_SELECT = 66,	/* Uses struct acpi_ivrs_device8a */
589 	ACPI_IVRS_TYPE_ALIAS_START = 67,	/* Uses struct acpi_ivrs_device8a */
590 	ACPI_IVRS_TYPE_EXT_SELECT = 70,	/* Uses struct acpi_ivrs_device8b */
591 	ACPI_IVRS_TYPE_EXT_START = 71,	/* Uses struct acpi_ivrs_device8b */
592 	ACPI_IVRS_TYPE_SPECIAL = 72,	/* Uses struct acpi_ivrs_device8c */
593 
594 	/* Variable-length device entries */
595 
596 	ACPI_IVRS_TYPE_HID = 240	/* Uses ACPI_IVRS_DEVICE_HID */
597 };
598 
599 /* Values for Data field above */
600 
601 #define ACPI_IVHD_INIT_PASS         (1)
602 #define ACPI_IVHD_EINT_PASS         (1<<1)
603 #define ACPI_IVHD_NMI_PASS          (1<<2)
604 #define ACPI_IVHD_SYSTEM_MGMT       (3<<4)
605 #define ACPI_IVHD_LINT0_PASS        (1<<6)
606 #define ACPI_IVHD_LINT1_PASS        (1<<7)
607 
608 /* Types 0-4: 4-byte device entry */
609 
610 struct acpi_ivrs_device4 {
611 	struct acpi_ivrs_de_header header;
612 };
613 
614 /* Types 66-67: 8-byte device entry */
615 
616 struct acpi_ivrs_device8a {
617 	struct acpi_ivrs_de_header header;
618 	u8 reserved1;
619 	u16 used_id;
620 	u8 reserved2;
621 };
622 
623 /* Types 70-71: 8-byte device entry */
624 
625 struct acpi_ivrs_device8b {
626 	struct acpi_ivrs_de_header header;
627 	u32 extended_data;
628 };
629 
630 /* Values for extended_data above */
631 
632 #define ACPI_IVHD_ATS_DISABLED      (1<<31)
633 
634 /* Type 72: 8-byte device entry */
635 
636 struct acpi_ivrs_device8c {
637 	struct acpi_ivrs_de_header header;
638 	u8 handle;
639 	u16 used_id;
640 	u8 variety;
641 };
642 
643 /* Values for Variety field above */
644 
645 #define ACPI_IVHD_IOAPIC            1
646 #define ACPI_IVHD_HPET              2
647 
648 /* Type 240: variable-length device entry */
649 
650 struct acpi_ivrs_device_hid {
651 	struct acpi_ivrs_de_header header;
652 	u64 acpi_hid;
653 	u64 acpi_cid;
654 	u8 uid_type;
655 	u8 uid_length;
656 };
657 
658 /* Values for uid_type above */
659 
660 #define ACPI_IVRS_UID_NOT_PRESENT   0
661 #define ACPI_IVRS_UID_IS_INTEGER    1
662 #define ACPI_IVRS_UID_IS_STRING     2
663 
664 /* 0x20, 0x21, 0x22: I/O Virtualization Memory Definition Block (IVMD) */
665 
666 struct acpi_ivrs_memory {
667 	struct acpi_ivrs_header header;
668 	u16 aux_data;
669 	u64 reserved;
670 	u64 start_address;
671 	u64 memory_length;
672 };
673 
674 /*******************************************************************************
675  *
676  * LPIT - Low Power Idle Table
677  *
678  * Conforms to "ACPI Low Power Idle Table (LPIT)" July 2014.
679  *
680  ******************************************************************************/
681 
682 struct acpi_table_lpit {
683 	struct acpi_table_header header;	/* Common ACPI table header */
684 };
685 
686 /* LPIT subtable header */
687 
688 struct acpi_lpit_header {
689 	u32 type;		/* Subtable type */
690 	u32 length;		/* Subtable length */
691 	u16 unique_id;
692 	u16 reserved;
693 	u32 flags;
694 };
695 
696 /* Values for subtable Type above */
697 
698 enum acpi_lpit_type {
699 	ACPI_LPIT_TYPE_NATIVE_CSTATE = 0x00,
700 	ACPI_LPIT_TYPE_RESERVED = 0x01	/* 1 and above are reserved */
701 };
702 
703 /* Masks for Flags field above  */
704 
705 #define ACPI_LPIT_STATE_DISABLED    (1)
706 #define ACPI_LPIT_NO_COUNTER        (1<<1)
707 
708 /*
709  * LPIT subtables, correspond to Type in struct acpi_lpit_header
710  */
711 
712 /* 0x00: Native C-state instruction based LPI structure */
713 
714 struct acpi_lpit_native {
715 	struct acpi_lpit_header header;
716 	struct acpi_generic_address entry_trigger;
717 	u32 residency;
718 	u32 latency;
719 	struct acpi_generic_address residency_counter;
720 	u64 counter_frequency;
721 };
722 
723 /*******************************************************************************
724  *
725  * MADT - Multiple APIC Description Table
726  *        Version 3
727  *
728  ******************************************************************************/
729 
730 struct acpi_table_madt {
731 	struct acpi_table_header header;	/* Common ACPI table header */
732 	u32 address;		/* Physical address of local APIC */
733 	u32 flags;
734 };
735 
736 /* Masks for Flags field above */
737 
738 #define ACPI_MADT_PCAT_COMPAT       (1)	/* 00: System also has dual 8259s */
739 
740 /* Values for PCATCompat flag */
741 
742 #define ACPI_MADT_DUAL_PIC          1
743 #define ACPI_MADT_MULTIPLE_APIC     0
744 
745 /* Values for MADT subtable type in struct acpi_subtable_header */
746 
747 enum acpi_madt_type {
748 	ACPI_MADT_TYPE_LOCAL_APIC = 0,
749 	ACPI_MADT_TYPE_IO_APIC = 1,
750 	ACPI_MADT_TYPE_INTERRUPT_OVERRIDE = 2,
751 	ACPI_MADT_TYPE_NMI_SOURCE = 3,
752 	ACPI_MADT_TYPE_LOCAL_APIC_NMI = 4,
753 	ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE = 5,
754 	ACPI_MADT_TYPE_IO_SAPIC = 6,
755 	ACPI_MADT_TYPE_LOCAL_SAPIC = 7,
756 	ACPI_MADT_TYPE_INTERRUPT_SOURCE = 8,
757 	ACPI_MADT_TYPE_LOCAL_X2APIC = 9,
758 	ACPI_MADT_TYPE_LOCAL_X2APIC_NMI = 10,
759 	ACPI_MADT_TYPE_GENERIC_INTERRUPT = 11,
760 	ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR = 12,
761 	ACPI_MADT_TYPE_GENERIC_MSI_FRAME = 13,
762 	ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14,
763 	ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15,
764 	ACPI_MADT_TYPE_MULTIPROC_WAKEUP = 16,
765 	ACPI_MADT_TYPE_RESERVED = 17	/* 17 and greater are reserved */
766 };
767 
768 /*
769  * MADT Subtables, correspond to Type in struct acpi_subtable_header
770  */
771 
772 /* 0: Processor Local APIC */
773 
774 struct acpi_madt_local_apic {
775 	struct acpi_subtable_header header;
776 	u8 processor_id;	/* ACPI processor id */
777 	u8 id;			/* Processor's local APIC id */
778 	u32 lapic_flags;
779 };
780 
781 /* 1: IO APIC */
782 
783 struct acpi_madt_io_apic {
784 	struct acpi_subtable_header header;
785 	u8 id;			/* I/O APIC ID */
786 	u8 reserved;		/* reserved - must be zero */
787 	u32 address;		/* APIC physical address */
788 	u32 global_irq_base;	/* Global system interrupt where INTI lines start */
789 };
790 
791 /* 2: Interrupt Override */
792 
793 struct acpi_madt_interrupt_override {
794 	struct acpi_subtable_header header;
795 	u8 bus;			/* 0 - ISA */
796 	u8 source_irq;		/* Interrupt source (IRQ) */
797 	u32 global_irq;		/* Global system interrupt */
798 	u16 inti_flags;
799 };
800 
801 /* 3: NMI Source */
802 
803 struct acpi_madt_nmi_source {
804 	struct acpi_subtable_header header;
805 	u16 inti_flags;
806 	u32 global_irq;		/* Global system interrupt */
807 };
808 
809 /* 4: Local APIC NMI */
810 
811 struct acpi_madt_local_apic_nmi {
812 	struct acpi_subtable_header header;
813 	u8 processor_id;	/* ACPI processor id */
814 	u16 inti_flags;
815 	u8 lint;		/* LINTn to which NMI is connected */
816 };
817 
818 /* 5: Address Override */
819 
820 struct acpi_madt_local_apic_override {
821 	struct acpi_subtable_header header;
822 	u16 reserved;		/* Reserved, must be zero */
823 	u64 address;		/* APIC physical address */
824 };
825 
826 /* 6: I/O Sapic */
827 
828 struct acpi_madt_io_sapic {
829 	struct acpi_subtable_header header;
830 	u8 id;			/* I/O SAPIC ID */
831 	u8 reserved;		/* Reserved, must be zero */
832 	u32 global_irq_base;	/* Global interrupt for SAPIC start */
833 	u64 address;		/* SAPIC physical address */
834 };
835 
836 /* 7: Local Sapic */
837 
838 struct acpi_madt_local_sapic {
839 	struct acpi_subtable_header header;
840 	u8 processor_id;	/* ACPI processor id */
841 	u8 id;			/* SAPIC ID */
842 	u8 eid;			/* SAPIC EID */
843 	u8 reserved[3];		/* Reserved, must be zero */
844 	u32 lapic_flags;
845 	u32 uid;		/* Numeric UID - ACPI 3.0 */
846 	char uid_string[1];	/* String UID  - ACPI 3.0 */
847 };
848 
849 /* 8: Platform Interrupt Source */
850 
851 struct acpi_madt_interrupt_source {
852 	struct acpi_subtable_header header;
853 	u16 inti_flags;
854 	u8 type;		/* 1=PMI, 2=INIT, 3=corrected */
855 	u8 id;			/* Processor ID */
856 	u8 eid;			/* Processor EID */
857 	u8 io_sapic_vector;	/* Vector value for PMI interrupts */
858 	u32 global_irq;		/* Global system interrupt */
859 	u32 flags;		/* Interrupt Source Flags */
860 };
861 
862 /* Masks for Flags field above */
863 
864 #define ACPI_MADT_CPEI_OVERRIDE     (1)
865 
866 /* 9: Processor Local X2APIC (ACPI 4.0) */
867 
868 struct acpi_madt_local_x2apic {
869 	struct acpi_subtable_header header;
870 	u16 reserved;		/* reserved - must be zero */
871 	u32 local_apic_id;	/* Processor x2APIC ID  */
872 	u32 lapic_flags;
873 	u32 uid;		/* ACPI processor UID */
874 };
875 
876 /* 10: Local X2APIC NMI (ACPI 4.0) */
877 
878 struct acpi_madt_local_x2apic_nmi {
879 	struct acpi_subtable_header header;
880 	u16 inti_flags;
881 	u32 uid;		/* ACPI processor UID */
882 	u8 lint;		/* LINTn to which NMI is connected */
883 	u8 reserved[3];		/* reserved - must be zero */
884 };
885 
886 /* 11: Generic interrupt - GICC (ACPI 5.0 + ACPI 6.0 + ACPI 6.3 changes) */
887 
888 struct acpi_madt_generic_interrupt {
889 	struct acpi_subtable_header header;
890 	u16 reserved;		/* reserved - must be zero */
891 	u32 cpu_interface_number;
892 	u32 uid;
893 	u32 flags;
894 	u32 parking_version;
895 	u32 performance_interrupt;
896 	u64 parked_address;
897 	u64 base_address;
898 	u64 gicv_base_address;
899 	u64 gich_base_address;
900 	u32 vgic_interrupt;
901 	u64 gicr_base_address;
902 	u64 arm_mpidr;
903 	u8 efficiency_class;
904 	u8 reserved2[1];
905 	u16 spe_interrupt;	/* ACPI 6.3 */
906 };
907 
908 /* Masks for Flags field above */
909 
910 /* ACPI_MADT_ENABLED                    (1)      Processor is usable if set */
911 #define ACPI_MADT_PERFORMANCE_IRQ_MODE  (1<<1)	/* 01: Performance Interrupt Mode */
912 #define ACPI_MADT_VGIC_IRQ_MODE         (1<<2)	/* 02: VGIC Maintenance Interrupt mode */
913 
914 /* 12: Generic Distributor (ACPI 5.0 + ACPI 6.0 changes) */
915 
916 struct acpi_madt_generic_distributor {
917 	struct acpi_subtable_header header;
918 	u16 reserved;		/* reserved - must be zero */
919 	u32 gic_id;
920 	u64 base_address;
921 	u32 global_irq_base;
922 	u8 version;
923 	u8 reserved2[3];	/* reserved - must be zero */
924 };
925 
926 /* Values for Version field above */
927 
928 enum acpi_madt_gic_version {
929 	ACPI_MADT_GIC_VERSION_NONE = 0,
930 	ACPI_MADT_GIC_VERSION_V1 = 1,
931 	ACPI_MADT_GIC_VERSION_V2 = 2,
932 	ACPI_MADT_GIC_VERSION_V3 = 3,
933 	ACPI_MADT_GIC_VERSION_V4 = 4,
934 	ACPI_MADT_GIC_VERSION_RESERVED = 5	/* 5 and greater are reserved */
935 };
936 
937 /* 13: Generic MSI Frame (ACPI 5.1) */
938 
939 struct acpi_madt_generic_msi_frame {
940 	struct acpi_subtable_header header;
941 	u16 reserved;		/* reserved - must be zero */
942 	u32 msi_frame_id;
943 	u64 base_address;
944 	u32 flags;
945 	u16 spi_count;
946 	u16 spi_base;
947 };
948 
949 /* Masks for Flags field above */
950 
951 #define ACPI_MADT_OVERRIDE_SPI_VALUES   (1)
952 
953 /* 14: Generic Redistributor (ACPI 5.1) */
954 
955 struct acpi_madt_generic_redistributor {
956 	struct acpi_subtable_header header;
957 	u16 reserved;		/* reserved - must be zero */
958 	u64 base_address;
959 	u32 length;
960 };
961 
962 /* 15: Generic Translator (ACPI 6.0) */
963 
964 struct acpi_madt_generic_translator {
965 	struct acpi_subtable_header header;
966 	u16 reserved;		/* reserved - must be zero */
967 	u32 translation_id;
968 	u64 base_address;
969 	u32 reserved2;
970 };
971 
972 /* 16: Multiprocessor wakeup (ACPI 6.4) */
973 
974 struct acpi_madt_multiproc_wakeup {
975 	struct acpi_subtable_header header;
976 	u16 mailbox_version;
977 	u32 reserved;		/* reserved - must be zero */
978 	u64 base_address;
979 };
980 
981 #define ACPI_MULTIPROC_WAKEUP_MB_OS_SIZE	2032
982 #define ACPI_MULTIPROC_WAKEUP_MB_FIRMWARE_SIZE	2048
983 
984 struct acpi_madt_multiproc_wakeup_mailbox {
985 	u16 command;
986 	u16 reserved;		/* reserved - must be zero */
987 	u32 apic_id;
988 	u64 wakeup_vector;
989 	u8 reserved_os[ACPI_MULTIPROC_WAKEUP_MB_OS_SIZE];	/* reserved for OS use */
990 	u8 reserved_firmware[ACPI_MULTIPROC_WAKEUP_MB_FIRMWARE_SIZE];	/* reserved for firmware use */
991 };
992 
993 #define ACPI_MP_WAKE_COMMAND_WAKEUP    1
994 
995 /*
996  * Common flags fields for MADT subtables
997  */
998 
999 /* MADT Local APIC flags */
1000 
1001 #define ACPI_MADT_ENABLED           (1)	/* 00: Processor is usable if set */
1002 #define ACPI_MADT_ONLINE_CAPABLE    (2)	/* 01: System HW supports enabling processor at runtime */
1003 
1004 /* MADT MPS INTI flags (inti_flags) */
1005 
1006 #define ACPI_MADT_POLARITY_MASK     (3)	/* 00-01: Polarity of APIC I/O input signals */
1007 #define ACPI_MADT_TRIGGER_MASK      (3<<2)	/* 02-03: Trigger mode of APIC input signals */
1008 
1009 /* Values for MPS INTI flags */
1010 
1011 #define ACPI_MADT_POLARITY_CONFORMS       0
1012 #define ACPI_MADT_POLARITY_ACTIVE_HIGH    1
1013 #define ACPI_MADT_POLARITY_RESERVED       2
1014 #define ACPI_MADT_POLARITY_ACTIVE_LOW     3
1015 
1016 #define ACPI_MADT_TRIGGER_CONFORMS        (0)
1017 #define ACPI_MADT_TRIGGER_EDGE            (1<<2)
1018 #define ACPI_MADT_TRIGGER_RESERVED        (2<<2)
1019 #define ACPI_MADT_TRIGGER_LEVEL           (3<<2)
1020 
1021 /*******************************************************************************
1022  *
1023  * MCFG - PCI Memory Mapped Configuration table and subtable
1024  *        Version 1
1025  *
1026  * Conforms to "PCI Firmware Specification", Revision 3.0, June 20, 2005
1027  *
1028  ******************************************************************************/
1029 
1030 struct acpi_table_mcfg {
1031 	struct acpi_table_header header;	/* Common ACPI table header */
1032 	u8 reserved[8];
1033 };
1034 
1035 /* Subtable */
1036 
1037 struct acpi_mcfg_allocation {
1038 	u64 address;		/* Base address, processor-relative */
1039 	u16 pci_segment;	/* PCI segment group number */
1040 	u8 start_bus_number;	/* Starting PCI Bus number */
1041 	u8 end_bus_number;	/* Final PCI Bus number */
1042 	u32 reserved;
1043 };
1044 
1045 /*******************************************************************************
1046  *
1047  * MCHI - Management Controller Host Interface Table
1048  *        Version 1
1049  *
1050  * Conforms to "Management Component Transport Protocol (MCTP) Host
1051  * Interface Specification", Revision 1.0.0a, October 13, 2009
1052  *
1053  ******************************************************************************/
1054 
1055 struct acpi_table_mchi {
1056 	struct acpi_table_header header;	/* Common ACPI table header */
1057 	u8 interface_type;
1058 	u8 protocol;
1059 	u64 protocol_data;
1060 	u8 interrupt_type;
1061 	u8 gpe;
1062 	u8 pci_device_flag;
1063 	u32 global_interrupt;
1064 	struct acpi_generic_address control_register;
1065 	u8 pci_segment;
1066 	u8 pci_bus;
1067 	u8 pci_device;
1068 	u8 pci_function;
1069 };
1070 
1071 /*******************************************************************************
1072  *
1073  * MPST - Memory Power State Table (ACPI 5.0)
1074  *        Version 1
1075  *
1076  ******************************************************************************/
1077 
1078 #define ACPI_MPST_CHANNEL_INFO \
1079 	u8                              channel_id; \
1080 	u8                              reserved1[3]; \
1081 	u16                             power_node_count; \
1082 	u16                             reserved2;
1083 
1084 /* Main table */
1085 
1086 struct acpi_table_mpst {
1087 	struct acpi_table_header header;	/* Common ACPI table header */
1088 	 ACPI_MPST_CHANNEL_INFO	/* Platform Communication Channel */
1089 };
1090 
1091 /* Memory Platform Communication Channel Info */
1092 
1093 struct acpi_mpst_channel {
1094 	ACPI_MPST_CHANNEL_INFO	/* Platform Communication Channel */
1095 };
1096 
1097 /* Memory Power Node Structure */
1098 
1099 struct acpi_mpst_power_node {
1100 	u8 flags;
1101 	u8 reserved1;
1102 	u16 node_id;
1103 	u32 length;
1104 	u64 range_address;
1105 	u64 range_length;
1106 	u32 num_power_states;
1107 	u32 num_physical_components;
1108 };
1109 
1110 /* Values for Flags field above */
1111 
1112 #define ACPI_MPST_ENABLED               1
1113 #define ACPI_MPST_POWER_MANAGED         2
1114 #define ACPI_MPST_HOT_PLUG_CAPABLE      4
1115 
1116 /* Memory Power State Structure (follows POWER_NODE above) */
1117 
1118 struct acpi_mpst_power_state {
1119 	u8 power_state;
1120 	u8 info_index;
1121 };
1122 
1123 /* Physical Component ID Structure (follows POWER_STATE above) */
1124 
1125 struct acpi_mpst_component {
1126 	u16 component_id;
1127 };
1128 
1129 /* Memory Power State Characteristics Structure (follows all POWER_NODEs) */
1130 
1131 struct acpi_mpst_data_hdr {
1132 	u16 characteristics_count;
1133 	u16 reserved;
1134 };
1135 
1136 struct acpi_mpst_power_data {
1137 	u8 structure_id;
1138 	u8 flags;
1139 	u16 reserved1;
1140 	u32 average_power;
1141 	u32 power_saving;
1142 	u64 exit_latency;
1143 	u64 reserved2;
1144 };
1145 
1146 /* Values for Flags field above */
1147 
1148 #define ACPI_MPST_PRESERVE              1
1149 #define ACPI_MPST_AUTOENTRY             2
1150 #define ACPI_MPST_AUTOEXIT              4
1151 
1152 /* Shared Memory Region (not part of an ACPI table) */
1153 
1154 struct acpi_mpst_shared {
1155 	u32 signature;
1156 	u16 pcc_command;
1157 	u16 pcc_status;
1158 	u32 command_register;
1159 	u32 status_register;
1160 	u32 power_state_id;
1161 	u32 power_node_id;
1162 	u64 energy_consumed;
1163 	u64 average_power;
1164 };
1165 
1166 /*******************************************************************************
1167  *
1168  * MSCT - Maximum System Characteristics Table (ACPI 4.0)
1169  *        Version 1
1170  *
1171  ******************************************************************************/
1172 
1173 struct acpi_table_msct {
1174 	struct acpi_table_header header;	/* Common ACPI table header */
1175 	u32 proximity_offset;	/* Location of proximity info struct(s) */
1176 	u32 max_proximity_domains;	/* Max number of proximity domains */
1177 	u32 max_clock_domains;	/* Max number of clock domains */
1178 	u64 max_address;	/* Max physical address in system */
1179 };
1180 
1181 /* subtable - Maximum Proximity Domain Information. Version 1 */
1182 
1183 struct acpi_msct_proximity {
1184 	u8 revision;
1185 	u8 length;
1186 	u32 range_start;	/* Start of domain range */
1187 	u32 range_end;		/* End of domain range */
1188 	u32 processor_capacity;
1189 	u64 memory_capacity;	/* In bytes */
1190 };
1191 
1192 /*******************************************************************************
1193  *
1194  * MSDM - Microsoft Data Management table
1195  *
1196  * Conforms to "Microsoft Software Licensing Tables (SLIC and MSDM)",
1197  * November 29, 2011. Copyright 2011 Microsoft
1198  *
1199  ******************************************************************************/
1200 
1201 /* Basic MSDM table is only the common ACPI header */
1202 
1203 struct acpi_table_msdm {
1204 	struct acpi_table_header header;	/* Common ACPI table header */
1205 };
1206 
1207 /*******************************************************************************
1208  *
1209  * NFIT - NVDIMM Interface Table (ACPI 6.0+)
1210  *        Version 1
1211  *
1212  ******************************************************************************/
1213 
1214 struct acpi_table_nfit {
1215 	struct acpi_table_header header;	/* Common ACPI table header */
1216 	u32 reserved;		/* Reserved, must be zero */
1217 };
1218 
1219 /* Subtable header for NFIT */
1220 
1221 struct acpi_nfit_header {
1222 	u16 type;
1223 	u16 length;
1224 };
1225 
1226 /* Values for subtable type in struct acpi_nfit_header */
1227 
1228 enum acpi_nfit_type {
1229 	ACPI_NFIT_TYPE_SYSTEM_ADDRESS = 0,
1230 	ACPI_NFIT_TYPE_MEMORY_MAP = 1,
1231 	ACPI_NFIT_TYPE_INTERLEAVE = 2,
1232 	ACPI_NFIT_TYPE_SMBIOS = 3,
1233 	ACPI_NFIT_TYPE_CONTROL_REGION = 4,
1234 	ACPI_NFIT_TYPE_DATA_REGION = 5,
1235 	ACPI_NFIT_TYPE_FLUSH_ADDRESS = 6,
1236 	ACPI_NFIT_TYPE_CAPABILITIES = 7,
1237 	ACPI_NFIT_TYPE_RESERVED = 8	/* 8 and greater are reserved */
1238 };
1239 
1240 /*
1241  * NFIT Subtables
1242  */
1243 
1244 /* 0: System Physical Address Range Structure */
1245 
1246 struct acpi_nfit_system_address {
1247 	struct acpi_nfit_header header;
1248 	u16 range_index;
1249 	u16 flags;
1250 	u32 reserved;		/* Reserved, must be zero */
1251 	u32 proximity_domain;
1252 	u8 range_guid[16];
1253 	u64 address;
1254 	u64 length;
1255 	u64 memory_mapping;
1256 	u64 location_cookie;	/* ACPI 6.4 */
1257 };
1258 
1259 /* Flags */
1260 
1261 #define ACPI_NFIT_ADD_ONLINE_ONLY       (1)	/* 00: Add/Online Operation Only */
1262 #define ACPI_NFIT_PROXIMITY_VALID       (1<<1)	/* 01: Proximity Domain Valid */
1263 #define ACPI_NFIT_LOCATION_COOKIE_VALID (1<<2)	/* 02: SPA location cookie valid (ACPI 6.4) */
1264 
1265 /* Range Type GUIDs appear in the include/acuuid.h file */
1266 
1267 /* 1: Memory Device to System Address Range Map Structure */
1268 
1269 struct acpi_nfit_memory_map {
1270 	struct acpi_nfit_header header;
1271 	u32 device_handle;
1272 	u16 physical_id;
1273 	u16 region_id;
1274 	u16 range_index;
1275 	u16 region_index;
1276 	u64 region_size;
1277 	u64 region_offset;
1278 	u64 address;
1279 	u16 interleave_index;
1280 	u16 interleave_ways;
1281 	u16 flags;
1282 	u16 reserved;		/* Reserved, must be zero */
1283 };
1284 
1285 /* Flags */
1286 
1287 #define ACPI_NFIT_MEM_SAVE_FAILED       (1)	/* 00: Last SAVE to Memory Device failed */
1288 #define ACPI_NFIT_MEM_RESTORE_FAILED    (1<<1)	/* 01: Last RESTORE from Memory Device failed */
1289 #define ACPI_NFIT_MEM_FLUSH_FAILED      (1<<2)	/* 02: Platform flush failed */
1290 #define ACPI_NFIT_MEM_NOT_ARMED         (1<<3)	/* 03: Memory Device is not armed */
1291 #define ACPI_NFIT_MEM_HEALTH_OBSERVED   (1<<4)	/* 04: Memory Device observed SMART/health events */
1292 #define ACPI_NFIT_MEM_HEALTH_ENABLED    (1<<5)	/* 05: SMART/health events enabled */
1293 #define ACPI_NFIT_MEM_MAP_FAILED        (1<<6)	/* 06: Mapping to SPA failed */
1294 
1295 /* 2: Interleave Structure */
1296 
1297 struct acpi_nfit_interleave {
1298 	struct acpi_nfit_header header;
1299 	u16 interleave_index;
1300 	u16 reserved;		/* Reserved, must be zero */
1301 	u32 line_count;
1302 	u32 line_size;
1303 	u32 line_offset[1];	/* Variable length */
1304 };
1305 
1306 /* 3: SMBIOS Management Information Structure */
1307 
1308 struct acpi_nfit_smbios {
1309 	struct acpi_nfit_header header;
1310 	u32 reserved;		/* Reserved, must be zero */
1311 	u8 data[1];		/* Variable length */
1312 };
1313 
1314 /* 4: NVDIMM Control Region Structure */
1315 
1316 struct acpi_nfit_control_region {
1317 	struct acpi_nfit_header header;
1318 	u16 region_index;
1319 	u16 vendor_id;
1320 	u16 device_id;
1321 	u16 revision_id;
1322 	u16 subsystem_vendor_id;
1323 	u16 subsystem_device_id;
1324 	u16 subsystem_revision_id;
1325 	u8 valid_fields;
1326 	u8 manufacturing_location;
1327 	u16 manufacturing_date;
1328 	u8 reserved[2];		/* Reserved, must be zero */
1329 	u32 serial_number;
1330 	u16 code;
1331 	u16 windows;
1332 	u64 window_size;
1333 	u64 command_offset;
1334 	u64 command_size;
1335 	u64 status_offset;
1336 	u64 status_size;
1337 	u16 flags;
1338 	u8 reserved1[6];	/* Reserved, must be zero */
1339 };
1340 
1341 /* Flags */
1342 
1343 #define ACPI_NFIT_CONTROL_BUFFERED          (1)	/* Block Data Windows implementation is buffered */
1344 
1345 /* valid_fields bits */
1346 
1347 #define ACPI_NFIT_CONTROL_MFG_INFO_VALID    (1)	/* Manufacturing fields are valid */
1348 
1349 /* 5: NVDIMM Block Data Window Region Structure */
1350 
1351 struct acpi_nfit_data_region {
1352 	struct acpi_nfit_header header;
1353 	u16 region_index;
1354 	u16 windows;
1355 	u64 offset;
1356 	u64 size;
1357 	u64 capacity;
1358 	u64 start_address;
1359 };
1360 
1361 /* 6: Flush Hint Address Structure */
1362 
1363 struct acpi_nfit_flush_address {
1364 	struct acpi_nfit_header header;
1365 	u32 device_handle;
1366 	u16 hint_count;
1367 	u8 reserved[6];		/* Reserved, must be zero */
1368 	u64 hint_address[1];	/* Variable length */
1369 };
1370 
1371 /* 7: Platform Capabilities Structure */
1372 
1373 struct acpi_nfit_capabilities {
1374 	struct acpi_nfit_header header;
1375 	u8 highest_capability;
1376 	u8 reserved[3];		/* Reserved, must be zero */
1377 	u32 capabilities;
1378 	u32 reserved2;
1379 };
1380 
1381 /* Capabilities Flags */
1382 
1383 #define ACPI_NFIT_CAPABILITY_CACHE_FLUSH       (1)	/* 00: Cache Flush to NVDIMM capable */
1384 #define ACPI_NFIT_CAPABILITY_MEM_FLUSH         (1<<1)	/* 01: Memory Flush to NVDIMM capable */
1385 #define ACPI_NFIT_CAPABILITY_MEM_MIRRORING     (1<<2)	/* 02: Memory Mirroring capable */
1386 
1387 /*
1388  * NFIT/DVDIMM device handle support - used as the _ADR for each NVDIMM
1389  */
1390 struct nfit_device_handle {
1391 	u32 handle;
1392 };
1393 
1394 /* Device handle construction and extraction macros */
1395 
1396 #define ACPI_NFIT_DIMM_NUMBER_MASK              0x0000000F
1397 #define ACPI_NFIT_CHANNEL_NUMBER_MASK           0x000000F0
1398 #define ACPI_NFIT_MEMORY_ID_MASK                0x00000F00
1399 #define ACPI_NFIT_SOCKET_ID_MASK                0x0000F000
1400 #define ACPI_NFIT_NODE_ID_MASK                  0x0FFF0000
1401 
1402 #define ACPI_NFIT_DIMM_NUMBER_OFFSET            0
1403 #define ACPI_NFIT_CHANNEL_NUMBER_OFFSET         4
1404 #define ACPI_NFIT_MEMORY_ID_OFFSET              8
1405 #define ACPI_NFIT_SOCKET_ID_OFFSET              12
1406 #define ACPI_NFIT_NODE_ID_OFFSET                16
1407 
1408 /* Macro to construct a NFIT/NVDIMM device handle */
1409 
1410 #define ACPI_NFIT_BUILD_DEVICE_HANDLE(dimm, channel, memory, socket, node) \
1411 	((dimm)                                         | \
1412 	((channel) << ACPI_NFIT_CHANNEL_NUMBER_OFFSET)  | \
1413 	((memory)  << ACPI_NFIT_MEMORY_ID_OFFSET)       | \
1414 	((socket)  << ACPI_NFIT_SOCKET_ID_OFFSET)       | \
1415 	((node)    << ACPI_NFIT_NODE_ID_OFFSET))
1416 
1417 /* Macros to extract individual fields from a NFIT/NVDIMM device handle */
1418 
1419 #define ACPI_NFIT_GET_DIMM_NUMBER(handle) \
1420 	((handle) & ACPI_NFIT_DIMM_NUMBER_MASK)
1421 
1422 #define ACPI_NFIT_GET_CHANNEL_NUMBER(handle) \
1423 	(((handle) & ACPI_NFIT_CHANNEL_NUMBER_MASK) >> ACPI_NFIT_CHANNEL_NUMBER_OFFSET)
1424 
1425 #define ACPI_NFIT_GET_MEMORY_ID(handle) \
1426 	(((handle) & ACPI_NFIT_MEMORY_ID_MASK)      >> ACPI_NFIT_MEMORY_ID_OFFSET)
1427 
1428 #define ACPI_NFIT_GET_SOCKET_ID(handle) \
1429 	(((handle) & ACPI_NFIT_SOCKET_ID_MASK)      >> ACPI_NFIT_SOCKET_ID_OFFSET)
1430 
1431 #define ACPI_NFIT_GET_NODE_ID(handle) \
1432 	(((handle) & ACPI_NFIT_NODE_ID_MASK)        >> ACPI_NFIT_NODE_ID_OFFSET)
1433 
1434 /*******************************************************************************
1435  *
1436  * NHLT - Non HD Audio Link Table
1437  *
1438  * Conforms to: Intel Smart Sound Technology NHLT Specification
1439  * Version 0.8.1, January 2020.
1440  *
1441  ******************************************************************************/
1442 
1443 /* Main table */
1444 
1445 struct acpi_table_nhlt {
1446 	struct acpi_table_header header;	/* Common ACPI table header */
1447 	u8 endpoint_count;
1448 };
1449 
1450 struct acpi_nhlt_endpoint {
1451 	u32 descriptor_length;
1452 	u8 link_type;
1453 	u8 instance_id;
1454 	u16 vendor_id;
1455 	u16 device_id;
1456 	u16 revision_id;
1457 	u32 subsystem_id;
1458 	u8 device_type;
1459 	u8 direction;
1460 	u8 virtual_bus_id;
1461 };
1462 
1463 /* Types for link_type field above */
1464 
1465 #define ACPI_NHLT_RESERVED_HD_AUDIO         0
1466 #define ACPI_NHLT_RESERVED_DSP              1
1467 #define ACPI_NHLT_PDM                       2
1468 #define ACPI_NHLT_SSP                       3
1469 #define ACPI_NHLT_RESERVED_SLIMBUS          4
1470 #define ACPI_NHLT_RESERVED_SOUNDWIRE        5
1471 #define ACPI_NHLT_TYPE_RESERVED             6	/* 6 and above are reserved */
1472 
1473 /* All other values above are reserved */
1474 
1475 /* Values for device_id field above */
1476 
1477 #define ACPI_NHLT_PDM_DMIC                  0xAE20
1478 #define ACPI_NHLT_BT_SIDEBAND               0xAE30
1479 #define ACPI_NHLT_I2S_TDM_CODECS            0xAE23
1480 
1481 /* Values for device_type field above */
1482 
1483 /* SSP Link */
1484 
1485 #define ACPI_NHLT_LINK_BT_SIDEBAND          0
1486 #define ACPI_NHLT_LINK_FM                   1
1487 #define ACPI_NHLT_LINK_MODEM                2
1488 /* 3 is reserved */
1489 #define ACPI_NHLT_LINK_SSP_ANALOG_CODEC     4
1490 
1491 /* PDM Link */
1492 
1493 #define ACPI_NHLT_PDM_ON_CAVS_1P8           0
1494 #define ACPI_NHLT_PDM_ON_CAVS_1P5           1
1495 
1496 /* Values for Direction field above */
1497 
1498 #define ACPI_NHLT_DIR_RENDER                0
1499 #define ACPI_NHLT_DIR_CAPTURE               1
1500 #define ACPI_NHLT_DIR_RENDER_LOOPBACK       2
1501 #define ACPI_NHLT_DIR_RENDER_FEEDBACK       3
1502 #define ACPI_NHLT_DIR_RESERVED              4	/* 4 and above are reserved */
1503 
1504 struct acpi_nhlt_device_specific_config {
1505 	u32 capabilities_size;
1506 	u8 virtual_slot;
1507 	u8 config_type;
1508 };
1509 
1510 struct acpi_nhlt_device_specific_config_a {
1511 	u32 capabilities_size;
1512 	u8 virtual_slot;
1513 	u8 config_type;
1514 	u8 array_type;
1515 };
1516 
1517 /* Values for Config Type above */
1518 
1519 #define ACPI_NHLT_CONFIG_TYPE_GENERIC              0x00
1520 #define ACPI_NHLT_CONFIG_TYPE_MIC_ARRAY            0x01
1521 #define ACPI_NHLT_CONFIG_TYPE_RENDER_FEEDBACK      0x03
1522 #define ACPI_NHLT_CONFIG_TYPE_RESERVED             0x04	/* 4 and above are reserved */
1523 
1524 struct acpi_nhlt_device_specific_config_b {
1525 	u32 capabilities_size;
1526 };
1527 
1528 struct acpi_nhlt_device_specific_config_c {
1529 	u32 capabilities_size;
1530 	u8 virtual_slot;
1531 };
1532 
1533 struct acpi_nhlt_render_device_specific_config {
1534 	u32 capabilities_size;
1535 	u8 virtual_slot;
1536 };
1537 
1538 struct acpi_nhlt_wave_extensible {
1539 	u16 format_tag;
1540 	u16 channel_count;
1541 	u32 samples_per_sec;
1542 	u32 avg_bytes_per_sec;
1543 	u16 block_align;
1544 	u16 bits_per_sample;
1545 	u16 extra_format_size;
1546 	u16 valid_bits_per_sample;
1547 	u32 channel_mask;
1548 	u8 sub_format_guid[16];
1549 };
1550 
1551 /* Values for channel_mask above */
1552 
1553 #define ACPI_NHLT_SPKR_FRONT_LEFT             0x1
1554 #define ACPI_NHLT_SPKR_FRONT_RIGHT            0x2
1555 #define ACPI_NHLT_SPKR_FRONT_CENTER           0x4
1556 #define ACPI_NHLT_SPKR_LOW_FREQ               0x8
1557 #define ACPI_NHLT_SPKR_BACK_LEFT              0x10
1558 #define ACPI_NHLT_SPKR_BACK_RIGHT             0x20
1559 #define ACPI_NHLT_SPKR_FRONT_LEFT_OF_CENTER   0x40
1560 #define ACPI_NHLT_SPKR_FRONT_RIGHT_OF_CENTER  0x80
1561 #define ACPI_NHLT_SPKR_BACK_CENTER            0x100
1562 #define ACPI_NHLT_SPKR_SIDE_LEFT              0x200
1563 #define ACPI_NHLT_SPKR_SIDE_RIGHT             0x400
1564 #define ACPI_NHLT_SPKR_TOP_CENTER             0x800
1565 #define ACPI_NHLT_SPKR_TOP_FRONT_LEFT         0x1000
1566 #define ACPI_NHLT_SPKR_TOP_FRONT_CENTER       0x2000
1567 #define ACPI_NHLT_SPKR_TOP_FRONT_RIGHT        0x4000
1568 #define ACPI_NHLT_SPKR_TOP_BACK_LEFT          0x8000
1569 #define ACPI_NHLT_SPKR_TOP_BACK_CENTER        0x10000
1570 #define ACPI_NHLT_SPKR_TOP_BACK_RIGHT         0x20000
1571 
1572 struct acpi_nhlt_format_config {
1573 	struct acpi_nhlt_wave_extensible format;
1574 	u32 capability_size;
1575 	u8 capabilities[];
1576 };
1577 
1578 struct acpi_nhlt_formats_config {
1579 	u8 formats_count;
1580 };
1581 
1582 struct acpi_nhlt_device_specific_hdr {
1583 	u8 virtual_slot;
1584 	u8 config_type;
1585 };
1586 
1587 /* Types for config_type above */
1588 
1589 #define ACPI_NHLT_GENERIC                   0
1590 #define ACPI_NHLT_MIC                       1
1591 #define ACPI_NHLT_RENDER                    3
1592 
1593 struct acpi_nhlt_mic_device_specific_config {
1594 	struct acpi_nhlt_device_specific_hdr device_config;
1595 	u8 array_type_ext;
1596 };
1597 
1598 /* Values for array_type_ext above */
1599 
1600 #define ACPI_NHLT_ARRAY_TYPE_RESERVED               0x09	// 9 and below are reserved
1601 #define ACPI_NHLT_SMALL_LINEAR_2ELEMENT             0x0A
1602 #define ACPI_NHLT_BIG_LINEAR_2ELEMENT               0x0B
1603 #define ACPI_NHLT_FIRST_GEOMETRY_LINEAR_4ELEMENT    0x0C
1604 #define ACPI_NHLT_PLANAR_LSHAPED_4ELEMENT           0x0D
1605 #define ACPI_NHLT_SECOND_GEOMETRY_LINEAR_4ELEMENT   0x0E
1606 #define ACPI_NHLT_VENDOR_DEFINED                    0x0F
1607 #define ACPI_NHLT_ARRAY_TYPE_MASK                   0x0F
1608 #define ACPI_NHLT_ARRAY_TYPE_EXT_MASK               0x10
1609 
1610 #define ACPI_NHLT_NO_EXTENSION                      0x0
1611 #define ACPI_NHLT_MIC_SNR_SENSITIVITY_EXT           (1<<4)
1612 
1613 struct acpi_nhlt_vendor_mic_count {
1614 	u8 microphone_count;
1615 };
1616 
1617 struct acpi_nhlt_vendor_mic_config {
1618 	u8 type;
1619 	u8 panel;
1620 	u16 speaker_position_distance;	// mm
1621 	u16 horizontal_offset;	// mm
1622 	u16 vertical_offset;	// mm
1623 	u8 frequency_low_band;	// 5*hz
1624 	u8 frequency_high_band;	// 500*hz
1625 	u16 direction_angle;	// -180 - + 180
1626 	u16 elevation_angle;	// -180 - + 180
1627 	u16 work_vertical_angle_begin;	// -180 - + 180 with 2 deg step
1628 	u16 work_vertical_angle_end;	// -180 - + 180 with 2 deg step
1629 	u16 work_horizontal_angle_begin;	// -180 - + 180 with 2 deg step
1630 	u16 work_horizontal_angle_end;	// -180 - + 180 with 2 deg step
1631 };
1632 
1633 /* Values for Type field above */
1634 
1635 #define ACPI_NHLT_MIC_OMNIDIRECTIONAL       0
1636 #define ACPI_NHLT_MIC_SUBCARDIOID           1
1637 #define ACPI_NHLT_MIC_CARDIOID              2
1638 #define ACPI_NHLT_MIC_SUPER_CARDIOID        3
1639 #define ACPI_NHLT_MIC_HYPER_CARDIOID        4
1640 #define ACPI_NHLT_MIC_8_SHAPED              5
1641 #define ACPI_NHLT_MIC_RESERVED6             6	// 6 is reserved
1642 #define ACPI_NHLT_MIC_VENDOR_DEFINED        7
1643 #define ACPI_NHLT_MIC_RESERVED              8	// 8 and above are reserved
1644 
1645 /* Values for Panel field above */
1646 
1647 #define ACPI_NHLT_MIC_POSITION_TOP          0
1648 #define ACPI_NHLT_MIC_POSITION_BOTTOM       1
1649 #define ACPI_NHLT_MIC_POSITION_LEFT         2
1650 #define ACPI_NHLT_MIC_POSITION_RIGHT        3
1651 #define ACPI_NHLT_MIC_POSITION_FRONT        4
1652 #define ACPI_NHLT_MIC_POSITION_BACK         5
1653 #define ACPI_NHLT_MIC_POSITION_RESERVED     6	// 6 and above are reserved
1654 
1655 struct acpi_nhlt_vendor_mic_device_specific_config {
1656 	struct acpi_nhlt_mic_device_specific_config mic_array_device_config;
1657 	u8 number_of_microphones;
1658 	struct acpi_nhlt_vendor_mic_config mic_config[];	// indexed by number_of_microphones
1659 };
1660 
1661 /* Microphone SNR and Sensitivity extension */
1662 
1663 struct acpi_nhlt_mic_snr_sensitivity_extension {
1664 	u32 SNR;
1665 	u32 sensitivity;
1666 };
1667 
1668 /* Render device with feedback */
1669 
1670 struct acpi_nhlt_render_feedback_device_specific_config {
1671 	u8 feedback_virtual_slot;	// render slot in case of capture
1672 	u16 feedback_channels;	// informative only
1673 	u16 feedback_valid_bits_per_sample;
1674 };
1675 
1676 /* Linux-specific structures */
1677 
1678 struct acpi_nhlt_linux_specific_count {
1679 	u8 structure_count;
1680 };
1681 
1682 struct acpi_nhlt_linux_specific_data {
1683 	u8 device_id[16];
1684 	u8 device_instance_id;
1685 	u8 device_port_id;
1686 };
1687 
1688 struct acpi_nhlt_linux_specific_data_b {
1689 	u8 specific_data[18];
1690 };
1691 
1692 struct acpi_nhlt_table_terminator {
1693 	u32 terminator_value;
1694 	u32 terminator_signature;
1695 };
1696 
1697 /*******************************************************************************
1698  *
1699  * PCCT - Platform Communications Channel Table (ACPI 5.0)
1700  *        Version 2 (ACPI 6.2)
1701  *
1702  ******************************************************************************/
1703 
1704 struct acpi_table_pcct {
1705 	struct acpi_table_header header;	/* Common ACPI table header */
1706 	u32 flags;
1707 	u64 reserved;
1708 };
1709 
1710 /* Values for Flags field above */
1711 
1712 #define ACPI_PCCT_DOORBELL              1
1713 
1714 /* Values for subtable type in struct acpi_subtable_header */
1715 
1716 enum acpi_pcct_type {
1717 	ACPI_PCCT_TYPE_GENERIC_SUBSPACE = 0,
1718 	ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE = 1,
1719 	ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE_TYPE2 = 2,	/* ACPI 6.1 */
1720 	ACPI_PCCT_TYPE_EXT_PCC_MASTER_SUBSPACE = 3,	/* ACPI 6.2 */
1721 	ACPI_PCCT_TYPE_EXT_PCC_SLAVE_SUBSPACE = 4,	/* ACPI 6.2 */
1722 	ACPI_PCCT_TYPE_HW_REG_COMM_SUBSPACE = 5,	/* ACPI 6.4 */
1723 	ACPI_PCCT_TYPE_RESERVED = 6	/* 6 and greater are reserved */
1724 };
1725 
1726 /*
1727  * PCCT Subtables, correspond to Type in struct acpi_subtable_header
1728  */
1729 
1730 /* 0: Generic Communications Subspace */
1731 
1732 struct acpi_pcct_subspace {
1733 	struct acpi_subtable_header header;
1734 	u8 reserved[6];
1735 	u64 base_address;
1736 	u64 length;
1737 	struct acpi_generic_address doorbell_register;
1738 	u64 preserve_mask;
1739 	u64 write_mask;
1740 	u32 latency;
1741 	u32 max_access_rate;
1742 	u16 min_turnaround_time;
1743 };
1744 
1745 /* 1: HW-reduced Communications Subspace (ACPI 5.1) */
1746 
1747 struct acpi_pcct_hw_reduced {
1748 	struct acpi_subtable_header header;
1749 	u32 platform_interrupt;
1750 	u8 flags;
1751 	u8 reserved;
1752 	u64 base_address;
1753 	u64 length;
1754 	struct acpi_generic_address doorbell_register;
1755 	u64 preserve_mask;
1756 	u64 write_mask;
1757 	u32 latency;
1758 	u32 max_access_rate;
1759 	u16 min_turnaround_time;
1760 };
1761 
1762 /* 2: HW-reduced Communications Subspace Type 2 (ACPI 6.1) */
1763 
1764 struct acpi_pcct_hw_reduced_type2 {
1765 	struct acpi_subtable_header header;
1766 	u32 platform_interrupt;
1767 	u8 flags;
1768 	u8 reserved;
1769 	u64 base_address;
1770 	u64 length;
1771 	struct acpi_generic_address doorbell_register;
1772 	u64 preserve_mask;
1773 	u64 write_mask;
1774 	u32 latency;
1775 	u32 max_access_rate;
1776 	u16 min_turnaround_time;
1777 	struct acpi_generic_address platform_ack_register;
1778 	u64 ack_preserve_mask;
1779 	u64 ack_write_mask;
1780 };
1781 
1782 /* 3: Extended PCC Master Subspace Type 3 (ACPI 6.2) */
1783 
1784 struct acpi_pcct_ext_pcc_master {
1785 	struct acpi_subtable_header header;
1786 	u32 platform_interrupt;
1787 	u8 flags;
1788 	u8 reserved1;
1789 	u64 base_address;
1790 	u32 length;
1791 	struct acpi_generic_address doorbell_register;
1792 	u64 preserve_mask;
1793 	u64 write_mask;
1794 	u32 latency;
1795 	u32 max_access_rate;
1796 	u32 min_turnaround_time;
1797 	struct acpi_generic_address platform_ack_register;
1798 	u64 ack_preserve_mask;
1799 	u64 ack_set_mask;
1800 	u64 reserved2;
1801 	struct acpi_generic_address cmd_complete_register;
1802 	u64 cmd_complete_mask;
1803 	struct acpi_generic_address cmd_update_register;
1804 	u64 cmd_update_preserve_mask;
1805 	u64 cmd_update_set_mask;
1806 	struct acpi_generic_address error_status_register;
1807 	u64 error_status_mask;
1808 };
1809 
1810 /* 4: Extended PCC Slave Subspace Type 4 (ACPI 6.2) */
1811 
1812 struct acpi_pcct_ext_pcc_slave {
1813 	struct acpi_subtable_header header;
1814 	u32 platform_interrupt;
1815 	u8 flags;
1816 	u8 reserved1;
1817 	u64 base_address;
1818 	u32 length;
1819 	struct acpi_generic_address doorbell_register;
1820 	u64 preserve_mask;
1821 	u64 write_mask;
1822 	u32 latency;
1823 	u32 max_access_rate;
1824 	u32 min_turnaround_time;
1825 	struct acpi_generic_address platform_ack_register;
1826 	u64 ack_preserve_mask;
1827 	u64 ack_set_mask;
1828 	u64 reserved2;
1829 	struct acpi_generic_address cmd_complete_register;
1830 	u64 cmd_complete_mask;
1831 	struct acpi_generic_address cmd_update_register;
1832 	u64 cmd_update_preserve_mask;
1833 	u64 cmd_update_set_mask;
1834 	struct acpi_generic_address error_status_register;
1835 	u64 error_status_mask;
1836 };
1837 
1838 /* 5: HW Registers based Communications Subspace */
1839 
1840 struct acpi_pcct_hw_reg {
1841 	struct acpi_subtable_header header;
1842 	u16 version;
1843 	u64 base_address;
1844 	u64 length;
1845 	struct acpi_generic_address doorbell_register;
1846 	u64 doorbell_preserve;
1847 	u64 doorbell_write;
1848 	struct acpi_generic_address cmd_complete_register;
1849 	u64 cmd_complete_mask;
1850 	struct acpi_generic_address error_status_register;
1851 	u64 error_status_mask;
1852 	u32 nominal_latency;
1853 	u32 min_turnaround_time;
1854 };
1855 
1856 /* Values for doorbell flags above */
1857 
1858 #define ACPI_PCCT_INTERRUPT_POLARITY    (1)
1859 #define ACPI_PCCT_INTERRUPT_MODE        (1<<1)
1860 
1861 /*
1862  * PCC memory structures (not part of the ACPI table)
1863  */
1864 
1865 /* Shared Memory Region */
1866 
1867 struct acpi_pcct_shared_memory {
1868 	u32 signature;
1869 	u16 command;
1870 	u16 status;
1871 };
1872 
1873 /* Extended PCC Subspace Shared Memory Region (ACPI 6.2) */
1874 
1875 struct acpi_pcct_ext_pcc_shared_memory {
1876 	u32 signature;
1877 	u32 flags;
1878 	u32 length;
1879 	u32 command;
1880 };
1881 
1882 /*******************************************************************************
1883  *
1884  * PDTT - Platform Debug Trigger Table (ACPI 6.2)
1885  *        Version 0
1886  *
1887  ******************************************************************************/
1888 
1889 struct acpi_table_pdtt {
1890 	struct acpi_table_header header;	/* Common ACPI table header */
1891 	u8 trigger_count;
1892 	u8 reserved[3];
1893 	u32 array_offset;
1894 };
1895 
1896 /*
1897  * PDTT Communication Channel Identifier Structure.
1898  * The number of these structures is defined by trigger_count above,
1899  * starting at array_offset.
1900  */
1901 struct acpi_pdtt_channel {
1902 	u8 subchannel_id;
1903 	u8 flags;
1904 };
1905 
1906 /* Flags for above */
1907 
1908 #define ACPI_PDTT_RUNTIME_TRIGGER           (1)
1909 #define ACPI_PDTT_WAIT_COMPLETION           (1<<1)
1910 #define ACPI_PDTT_TRIGGER_ORDER             (1<<2)
1911 
1912 /*******************************************************************************
1913  *
1914  * PHAT - Platform Health Assessment Table (ACPI 6.4)
1915  *        Version 1
1916  *
1917  ******************************************************************************/
1918 
1919 struct acpi_table_phat {
1920 	struct acpi_table_header header;	/* Common ACPI table header */
1921 };
1922 
1923 /* Common header for PHAT subtables that follow main table */
1924 
1925 struct acpi_phat_header {
1926 	u16 type;
1927 	u16 length;
1928 	u8 revision;
1929 };
1930 
1931 /* Values for Type field above */
1932 
1933 #define ACPI_PHAT_TYPE_FW_VERSION_DATA  0
1934 #define ACPI_PHAT_TYPE_FW_HEALTH_DATA   1
1935 #define ACPI_PHAT_TYPE_RESERVED         2	/* 0x02-0xFFFF are reserved */
1936 
1937 /*
1938  * PHAT subtables, correspond to Type in struct acpi_phat_header
1939  */
1940 
1941 /* 0: Firmware Version Data Record */
1942 
1943 struct acpi_phat_version_data {
1944 	struct acpi_phat_header header;
1945 	u8 reserved[3];
1946 	u32 element_count;
1947 };
1948 
1949 struct acpi_phat_version_element {
1950 	u8 guid[16];
1951 	u64 version_value;
1952 	u32 producer_id;
1953 };
1954 
1955 /* 1: Firmware Health Data Record */
1956 
1957 struct acpi_phat_health_data {
1958 	struct acpi_phat_header header;
1959 	u8 reserved[2];
1960 	u8 health;
1961 	u8 device_guid[16];
1962 	u32 device_specific_offset;	/* Zero if no Device-specific data */
1963 };
1964 
1965 /* Values for Health field above */
1966 
1967 #define ACPI_PHAT_ERRORS_FOUND          0
1968 #define ACPI_PHAT_NO_ERRORS             1
1969 #define ACPI_PHAT_UNKNOWN_ERRORS        2
1970 #define ACPI_PHAT_ADVISORY              3
1971 
1972 /*******************************************************************************
1973  *
1974  * PMTT - Platform Memory Topology Table (ACPI 5.0)
1975  *        Version 1
1976  *
1977  ******************************************************************************/
1978 
1979 struct acpi_table_pmtt {
1980 	struct acpi_table_header header;	/* Common ACPI table header */
1981 	u32 memory_device_count;
1982 	/*
1983 	 * Immediately followed by:
1984 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
1985 	 */
1986 };
1987 
1988 /* Common header for PMTT subtables that follow main table */
1989 
1990 struct acpi_pmtt_header {
1991 	u8 type;
1992 	u8 reserved1;
1993 	u16 length;
1994 	u16 flags;
1995 	u16 reserved2;
1996 	u32 memory_device_count;	/* Zero means no memory device structs follow */
1997 	/*
1998 	 * Immediately followed by:
1999 	 * u8 type_specific_data[]
2000 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
2001 	 */
2002 };
2003 
2004 /* Values for Type field above */
2005 
2006 #define ACPI_PMTT_TYPE_SOCKET           0
2007 #define ACPI_PMTT_TYPE_CONTROLLER       1
2008 #define ACPI_PMTT_TYPE_DIMM             2
2009 #define ACPI_PMTT_TYPE_RESERVED         3	/* 0x03-0xFE are reserved */
2010 #define ACPI_PMTT_TYPE_VENDOR           0xFF
2011 
2012 /* Values for Flags field above */
2013 
2014 #define ACPI_PMTT_TOP_LEVEL             0x0001
2015 #define ACPI_PMTT_PHYSICAL              0x0002
2016 #define ACPI_PMTT_MEMORY_TYPE           0x000C
2017 
2018 /*
2019  * PMTT subtables, correspond to Type in struct acpi_pmtt_header
2020  */
2021 
2022 /* 0: Socket Structure */
2023 
2024 struct acpi_pmtt_socket {
2025 	struct acpi_pmtt_header header;
2026 	u16 socket_id;
2027 	u16 reserved;
2028 };
2029 	/*
2030 	 * Immediately followed by:
2031 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
2032 	 */
2033 
2034 /* 1: Memory Controller subtable */
2035 
2036 struct acpi_pmtt_controller {
2037 	struct acpi_pmtt_header header;
2038 	u16 controller_id;
2039 	u16 reserved;
2040 };
2041 	/*
2042 	 * Immediately followed by:
2043 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
2044 	 */
2045 
2046 /* 2: Physical Component Identifier (DIMM) */
2047 
2048 struct acpi_pmtt_physical_component {
2049 	struct acpi_pmtt_header header;
2050 	u32 bios_handle;
2051 };
2052 
2053 /* 0xFF: Vendor Specific Data */
2054 
2055 struct acpi_pmtt_vendor_specific {
2056 	struct acpi_pmtt_header header;
2057 	u8 type_uuid[16];
2058 	u8 specific[];
2059 	/*
2060 	 * Immediately followed by:
2061 	 * u8 vendor_specific_data[];
2062 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
2063 	 */
2064 };
2065 
2066 /*******************************************************************************
2067  *
2068  * PPTT - Processor Properties Topology Table (ACPI 6.2)
2069  *        Version 1
2070  *
2071  ******************************************************************************/
2072 
2073 struct acpi_table_pptt {
2074 	struct acpi_table_header header;	/* Common ACPI table header */
2075 };
2076 
2077 /* Values for Type field above */
2078 
2079 enum acpi_pptt_type {
2080 	ACPI_PPTT_TYPE_PROCESSOR = 0,
2081 	ACPI_PPTT_TYPE_CACHE = 1,
2082 	ACPI_PPTT_TYPE_ID = 2,
2083 	ACPI_PPTT_TYPE_RESERVED = 3
2084 };
2085 
2086 /* 0: Processor Hierarchy Node Structure */
2087 
2088 struct acpi_pptt_processor {
2089 	struct acpi_subtable_header header;
2090 	u16 reserved;
2091 	u32 flags;
2092 	u32 parent;
2093 	u32 acpi_processor_id;
2094 	u32 number_of_priv_resources;
2095 };
2096 
2097 /* Flags */
2098 
2099 #define ACPI_PPTT_PHYSICAL_PACKAGE          (1)
2100 #define ACPI_PPTT_ACPI_PROCESSOR_ID_VALID   (1<<1)
2101 #define ACPI_PPTT_ACPI_PROCESSOR_IS_THREAD  (1<<2)	/* ACPI 6.3 */
2102 #define ACPI_PPTT_ACPI_LEAF_NODE            (1<<3)	/* ACPI 6.3 */
2103 #define ACPI_PPTT_ACPI_IDENTICAL            (1<<4)	/* ACPI 6.3 */
2104 
2105 /* 1: Cache Type Structure */
2106 
2107 struct acpi_pptt_cache {
2108 	struct acpi_subtable_header header;
2109 	u16 reserved;
2110 	u32 flags;
2111 	u32 next_level_of_cache;
2112 	u32 size;
2113 	u32 number_of_sets;
2114 	u8 associativity;
2115 	u8 attributes;
2116 	u16 line_size;
2117 };
2118 
2119 /* 1: Cache Type Structure for PPTT version 3 */
2120 
2121 struct acpi_pptt_cache_v1 {
2122 	u32 cache_id;
2123 };
2124 
2125 /* Flags */
2126 
2127 #define ACPI_PPTT_SIZE_PROPERTY_VALID       (1)	/* Physical property valid */
2128 #define ACPI_PPTT_NUMBER_OF_SETS_VALID      (1<<1)	/* Number of sets valid */
2129 #define ACPI_PPTT_ASSOCIATIVITY_VALID       (1<<2)	/* Associativity valid */
2130 #define ACPI_PPTT_ALLOCATION_TYPE_VALID     (1<<3)	/* Allocation type valid */
2131 #define ACPI_PPTT_CACHE_TYPE_VALID          (1<<4)	/* Cache type valid */
2132 #define ACPI_PPTT_WRITE_POLICY_VALID        (1<<5)	/* Write policy valid */
2133 #define ACPI_PPTT_LINE_SIZE_VALID           (1<<6)	/* Line size valid */
2134 #define ACPI_PPTT_CACHE_ID_VALID            (1<<7)	/* Cache ID valid */
2135 
2136 /* Masks for Attributes */
2137 
2138 #define ACPI_PPTT_MASK_ALLOCATION_TYPE      (0x03)	/* Allocation type */
2139 #define ACPI_PPTT_MASK_CACHE_TYPE           (0x0C)	/* Cache type */
2140 #define ACPI_PPTT_MASK_WRITE_POLICY         (0x10)	/* Write policy */
2141 
2142 /* Attributes describing cache */
2143 #define ACPI_PPTT_CACHE_READ_ALLOCATE       (0x0)	/* Cache line is allocated on read */
2144 #define ACPI_PPTT_CACHE_WRITE_ALLOCATE      (0x01)	/* Cache line is allocated on write */
2145 #define ACPI_PPTT_CACHE_RW_ALLOCATE         (0x02)	/* Cache line is allocated on read and write */
2146 #define ACPI_PPTT_CACHE_RW_ALLOCATE_ALT     (0x03)	/* Alternate representation of above */
2147 
2148 #define ACPI_PPTT_CACHE_TYPE_DATA           (0x0)	/* Data cache */
2149 #define ACPI_PPTT_CACHE_TYPE_INSTR          (1<<2)	/* Instruction cache */
2150 #define ACPI_PPTT_CACHE_TYPE_UNIFIED        (2<<2)	/* Unified I & D cache */
2151 #define ACPI_PPTT_CACHE_TYPE_UNIFIED_ALT    (3<<2)	/* Alternate representation of above */
2152 
2153 #define ACPI_PPTT_CACHE_POLICY_WB           (0x0)	/* Cache is write back */
2154 #define ACPI_PPTT_CACHE_POLICY_WT           (1<<4)	/* Cache is write through */
2155 
2156 /* 2: ID Structure */
2157 
2158 struct acpi_pptt_id {
2159 	struct acpi_subtable_header header;
2160 	u16 reserved;
2161 	u32 vendor_id;
2162 	u64 level1_id;
2163 	u64 level2_id;
2164 	u16 major_rev;
2165 	u16 minor_rev;
2166 	u16 spin_rev;
2167 };
2168 
2169 /*******************************************************************************
2170  *
2171  * PRMT - Platform Runtime Mechanism Table
2172  *        Version 1
2173  *
2174  ******************************************************************************/
2175 
2176 struct acpi_table_prmt {
2177 	struct acpi_table_header header;	/* Common ACPI table header */
2178 };
2179 
2180 struct acpi_table_prmt_header {
2181 	u8 platform_guid[16];
2182 	u32 module_info_offset;
2183 	u32 module_info_count;
2184 };
2185 
2186 struct acpi_prmt_module_header {
2187 	u16 revision;
2188 	u16 length;
2189 };
2190 
2191 struct acpi_prmt_module_info {
2192 	u16 revision;
2193 	u16 length;
2194 	u8 module_guid[16];
2195 	u16 major_rev;
2196 	u16 minor_rev;
2197 	u16 handler_info_count;
2198 	u32 handler_info_offset;
2199 	u64 mmio_list_pointer;
2200 };
2201 
2202 struct acpi_prmt_handler_info {
2203 	u16 revision;
2204 	u16 length;
2205 	u8 handler_guid[16];
2206 	u64 handler_address;
2207 	u64 static_data_buffer_address;
2208 	u64 acpi_param_buffer_address;
2209 };
2210 
2211 /*******************************************************************************
2212  *
2213  * RASF - RAS Feature Table (ACPI 5.0)
2214  *        Version 1
2215  *
2216  ******************************************************************************/
2217 
2218 struct acpi_table_rasf {
2219 	struct acpi_table_header header;	/* Common ACPI table header */
2220 	u8 channel_id[12];
2221 };
2222 
2223 /* RASF Platform Communication Channel Shared Memory Region */
2224 
2225 struct acpi_rasf_shared_memory {
2226 	u32 signature;
2227 	u16 command;
2228 	u16 status;
2229 	u16 version;
2230 	u8 capabilities[16];
2231 	u8 set_capabilities[16];
2232 	u16 num_parameter_blocks;
2233 	u32 set_capabilities_status;
2234 };
2235 
2236 /* RASF Parameter Block Structure Header */
2237 
2238 struct acpi_rasf_parameter_block {
2239 	u16 type;
2240 	u16 version;
2241 	u16 length;
2242 };
2243 
2244 /* RASF Parameter Block Structure for PATROL_SCRUB */
2245 
2246 struct acpi_rasf_patrol_scrub_parameter {
2247 	struct acpi_rasf_parameter_block header;
2248 	u16 patrol_scrub_command;
2249 	u64 requested_address_range[2];
2250 	u64 actual_address_range[2];
2251 	u16 flags;
2252 	u8 requested_speed;
2253 };
2254 
2255 /* Masks for Flags and Speed fields above */
2256 
2257 #define ACPI_RASF_SCRUBBER_RUNNING      1
2258 #define ACPI_RASF_SPEED                 (7<<1)
2259 #define ACPI_RASF_SPEED_SLOW            (0<<1)
2260 #define ACPI_RASF_SPEED_MEDIUM          (4<<1)
2261 #define ACPI_RASF_SPEED_FAST            (7<<1)
2262 
2263 /* Channel Commands */
2264 
2265 enum acpi_rasf_commands {
2266 	ACPI_RASF_EXECUTE_RASF_COMMAND = 1
2267 };
2268 
2269 /* Platform RAS Capabilities */
2270 
2271 enum acpi_rasf_capabiliities {
2272 	ACPI_HW_PATROL_SCRUB_SUPPORTED = 0,
2273 	ACPI_SW_PATROL_SCRUB_EXPOSED = 1
2274 };
2275 
2276 /* Patrol Scrub Commands */
2277 
2278 enum acpi_rasf_patrol_scrub_commands {
2279 	ACPI_RASF_GET_PATROL_PARAMETERS = 1,
2280 	ACPI_RASF_START_PATROL_SCRUBBER = 2,
2281 	ACPI_RASF_STOP_PATROL_SCRUBBER = 3
2282 };
2283 
2284 /* Channel Command flags */
2285 
2286 #define ACPI_RASF_GENERATE_SCI          (1<<15)
2287 
2288 /* Status values */
2289 
2290 enum acpi_rasf_status {
2291 	ACPI_RASF_SUCCESS = 0,
2292 	ACPI_RASF_NOT_VALID = 1,
2293 	ACPI_RASF_NOT_SUPPORTED = 2,
2294 	ACPI_RASF_BUSY = 3,
2295 	ACPI_RASF_FAILED = 4,
2296 	ACPI_RASF_ABORTED = 5,
2297 	ACPI_RASF_INVALID_DATA = 6
2298 };
2299 
2300 /* Status flags */
2301 
2302 #define ACPI_RASF_COMMAND_COMPLETE      (1)
2303 #define ACPI_RASF_SCI_DOORBELL          (1<<1)
2304 #define ACPI_RASF_ERROR                 (1<<2)
2305 #define ACPI_RASF_STATUS                (0x1F<<3)
2306 
2307 /*******************************************************************************
2308  *
2309  * RGRT - Regulatory Graphics Resource Table
2310  *        Version 1
2311  *
2312  * Conforms to "ACPI RGRT" available at:
2313  * https://microsoft.github.io/mu/dyn/mu_plus/ms_core_pkg/acpi_RGRT/feature_acpi_rgrt/
2314  *
2315  ******************************************************************************/
2316 
2317 struct acpi_table_rgrt {
2318 	struct acpi_table_header header;	/* Common ACPI table header */
2319 	u16 version;
2320 	u8 image_type;
2321 	u8 reserved;
2322 	u8 image[0];
2323 };
2324 
2325 /* image_type values */
2326 
2327 enum acpi_rgrt_image_type {
2328 	ACPI_RGRT_TYPE_RESERVED0 = 0,
2329 	ACPI_RGRT_IMAGE_TYPE_PNG = 1,
2330 	ACPI_RGRT_TYPE_RESERVED = 2	/* 2 and greater are reserved */
2331 };
2332 
2333 /*******************************************************************************
2334  *
2335  * SBST - Smart Battery Specification Table
2336  *        Version 1
2337  *
2338  ******************************************************************************/
2339 
2340 struct acpi_table_sbst {
2341 	struct acpi_table_header header;	/* Common ACPI table header */
2342 	u32 warning_level;
2343 	u32 low_level;
2344 	u32 critical_level;
2345 };
2346 
2347 /*******************************************************************************
2348  *
2349  * SDEI - Software Delegated Exception Interface Descriptor Table
2350  *
2351  * Conforms to "Software Delegated Exception Interface (SDEI)" ARM DEN0054A,
2352  * May 8th, 2017. Copyright 2017 ARM Ltd.
2353  *
2354  ******************************************************************************/
2355 
2356 struct acpi_table_sdei {
2357 	struct acpi_table_header header;	/* Common ACPI table header */
2358 };
2359 
2360 /*******************************************************************************
2361  *
2362  * SDEV - Secure Devices Table (ACPI 6.2)
2363  *        Version 1
2364  *
2365  ******************************************************************************/
2366 
2367 struct acpi_table_sdev {
2368 	struct acpi_table_header header;	/* Common ACPI table header */
2369 };
2370 
2371 struct acpi_sdev_header {
2372 	u8 type;
2373 	u8 flags;
2374 	u16 length;
2375 };
2376 
2377 /* Values for subtable type above */
2378 
2379 enum acpi_sdev_type {
2380 	ACPI_SDEV_TYPE_NAMESPACE_DEVICE = 0,
2381 	ACPI_SDEV_TYPE_PCIE_ENDPOINT_DEVICE = 1,
2382 	ACPI_SDEV_TYPE_RESERVED = 2	/* 2 and greater are reserved */
2383 };
2384 
2385 /* Values for flags above */
2386 
2387 #define ACPI_SDEV_HANDOFF_TO_UNSECURE_OS    (1)
2388 #define ACPI_SDEV_SECURE_COMPONENTS_PRESENT (1<<1)
2389 
2390 /*
2391  * SDEV subtables
2392  */
2393 
2394 /* 0: Namespace Device Based Secure Device Structure */
2395 
2396 struct acpi_sdev_namespace {
2397 	struct acpi_sdev_header header;
2398 	u16 device_id_offset;
2399 	u16 device_id_length;
2400 	u16 vendor_data_offset;
2401 	u16 vendor_data_length;
2402 };
2403 
2404 struct acpi_sdev_secure_component {
2405 	u16 secure_component_offset;
2406 	u16 secure_component_length;
2407 };
2408 
2409 /*
2410  * SDEV sub-subtables ("Components") for above
2411  */
2412 struct acpi_sdev_component {
2413 	struct acpi_sdev_header header;
2414 };
2415 
2416 /* Values for sub-subtable type above */
2417 
2418 enum acpi_sac_type {
2419 	ACPI_SDEV_TYPE_ID_COMPONENT = 0,
2420 	ACPI_SDEV_TYPE_MEM_COMPONENT = 1
2421 };
2422 
2423 struct acpi_sdev_id_component {
2424 	struct acpi_sdev_header header;
2425 	u16 hardware_id_offset;
2426 	u16 hardware_id_length;
2427 	u16 subsystem_id_offset;
2428 	u16 subsystem_id_length;
2429 	u16 hardware_revision;
2430 	u8 hardware_rev_present;
2431 	u8 class_code_present;
2432 	u8 pci_base_class;
2433 	u8 pci_sub_class;
2434 	u8 pci_programming_xface;
2435 };
2436 
2437 struct acpi_sdev_mem_component {
2438 	struct acpi_sdev_header header;
2439 	u32 reserved;
2440 	u64 memory_base_address;
2441 	u64 memory_length;
2442 };
2443 
2444 /* 1: PCIe Endpoint Device Based Device Structure */
2445 
2446 struct acpi_sdev_pcie {
2447 	struct acpi_sdev_header header;
2448 	u16 segment;
2449 	u16 start_bus;
2450 	u16 path_offset;
2451 	u16 path_length;
2452 	u16 vendor_data_offset;
2453 	u16 vendor_data_length;
2454 };
2455 
2456 /* 1a: PCIe Endpoint path entry */
2457 
2458 struct acpi_sdev_pcie_path {
2459 	u8 device;
2460 	u8 function;
2461 };
2462 
2463 /*******************************************************************************
2464  *
2465  * SVKL - Storage Volume Key Location Table (ACPI 6.4)
2466  *        From: "Guest-Host-Communication Interface (GHCI) for Intel
2467  *        Trust Domain Extensions (Intel TDX)".
2468  *        Version 1
2469  *
2470  ******************************************************************************/
2471 
2472 struct acpi_table_svkl {
2473 	struct acpi_table_header header;	/* Common ACPI table header */
2474 	u32 count;
2475 };
2476 
2477 struct acpi_svkl_key {
2478 	u16 type;
2479 	u16 format;
2480 	u32 size;
2481 	u64 address;
2482 };
2483 
2484 enum acpi_svkl_type {
2485 	ACPI_SVKL_TYPE_MAIN_STORAGE = 0,
2486 	ACPI_SVKL_TYPE_RESERVED = 1	/* 1 and greater are reserved */
2487 };
2488 
2489 enum acpi_svkl_format {
2490 	ACPI_SVKL_FORMAT_RAW_BINARY = 0,
2491 	ACPI_SVKL_FORMAT_RESERVED = 1	/* 1 and greater are reserved */
2492 };
2493 
2494 /*******************************************************************************
2495  *
2496  * TDEL - TD-Event Log
2497  *        From: "Guest-Host-Communication Interface (GHCI) for Intel
2498  *        Trust Domain Extensions (Intel TDX)".
2499  *        September 2020
2500  *
2501  ******************************************************************************/
2502 
2503 struct acpi_table_tdel {
2504 	struct acpi_table_header header;	/* Common ACPI table header */
2505 	u32 reserved;
2506 	u64 log_area_minimum_length;
2507 	u64 log_area_start_address;
2508 };
2509 
2510 /* Reset to default packing */
2511 
2512 #pragma pack()
2513 
2514 #endif				/* __ACTBL2_H__ */
2515