include/acpi/actbl3.h

   1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
   2 /******************************************************************************
   3  *
   4  * Name: actbl3.h - ACPI Table Definitions
   5  *
   6  * Copyright (C) 2000 - 2023, Intel Corp.
   7  *
   8  *****************************************************************************/
   9
  10 #ifndef __ACTBL3_H__
  11 #define __ACTBL3_H__
  12
  13 /*******************************************************************************
  14  *
  15  * Additional ACPI Tables
  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_SLIC           "SLIC"  /* Software Licensing Description Table */
  28 #define ACPI_SIG_SLIT           "SLIT"  /* System Locality Distance Information Table */
  29 #define ACPI_SIG_SPCR           "SPCR"  /* Serial Port Console Redirection table */
  30 #define ACPI_SIG_SPMI           "SPMI"  /* Server Platform Management Interface table */
  31 #define ACPI_SIG_SRAT           "SRAT"  /* System Resource Affinity Table */
  32 #define ACPI_SIG_STAO           "STAO"  /* Status Override table */
  33 #define ACPI_SIG_TCPA           "TCPA"  /* Trusted Computing Platform Alliance table */
  34 #define ACPI_SIG_TPM2           "TPM2"  /* Trusted Platform Module 2.0 H/W interface table */
  35 #define ACPI_SIG_UEFI           "UEFI"  /* Uefi Boot Optimization Table */
  36 #define ACPI_SIG_VIOT           "VIOT"  /* Virtual I/O Translation Table */
  37 #define ACPI_SIG_WAET           "WAET"  /* Windows ACPI Emulated devices Table */
  38 #define ACPI_SIG_WDAT           "WDAT"  /* Watchdog Action Table */
  39 #define ACPI_SIG_WDDT           "WDDT"  /* Watchdog Timer Description Table */
  40 #define ACPI_SIG_WDRT           "WDRT"  /* Watchdog Resource Table */
  41 #define ACPI_SIG_WPBT           "WPBT"  /* Windows Platform Binary Table */
  42 #define ACPI_SIG_WSMT           "WSMT"  /* Windows SMM Security Mitigations Table */
  43 #define ACPI_SIG_XENV           "XENV"  /* Xen Environment table */
  44 #define ACPI_SIG_XXXX           "XXXX"  /* Intermediate AML header for ASL/ASL+ converter */
  45
  46 /*
  47  * All tables must be byte-packed to match the ACPI specification, since
  48  * the tables are provided by the system BIOS.
  49  */
  50 #pragma pack(1)
  51
  52 /*
  53  * Note: C bitfields are not used for this reason:
  54  *
  55  * "Bitfields are great and easy to read, but unfortunately the C language
  56  * does not specify the layout of bitfields in memory, which means they are
  57  * essentially useless for dealing with packed data in on-disk formats or
  58  * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
  59  * this decision was a design error in C. Ritchie could have picked an order
  60  * and stuck with it." Norman Ramsey.
  61  * See http://stackoverflow.com/a/1053662/41661
  62  */
  63
  64 /*******************************************************************************
  65  *
  66  * SLIC - Software Licensing Description Table
  67  *
  68  * Conforms to "Microsoft Software Licensing Tables (SLIC and MSDM)",
  69  * November 29, 2011. Copyright 2011 Microsoft
  70  *
  71  ******************************************************************************/
  72
  73 /* Basic SLIC table is only the common ACPI header */
  74
  75 struct acpi_table_slic {
  76         struct acpi_table_header header;        /* Common ACPI table header */
  77 };
  78
  79 /*******************************************************************************
  80  *
  81  * SLIT - System Locality Distance Information Table
  82  *        Version 1
  83  *
  84  ******************************************************************************/
  85
  86 struct acpi_table_slit {
  87         struct acpi_table_header header;        /* Common ACPI table header */
  88         u64 locality_count;
  89         u8 entry[];                             /* Real size = localities^2 */
  90 };
  91
  92 /*******************************************************************************
  93  *
  94  * SPCR - Serial Port Console Redirection table
  95  *        Version 4
  96  *
  97  * Conforms to "Serial Port Console Redirection Table",
  98  * Version 1.10, Jan 5, 2023
  99  *
 100  ******************************************************************************/
 101
 102 struct acpi_table_spcr {
 103         struct acpi_table_header header;        /* Common ACPI table header */
 104         u8 interface_type;      /* 0=full 16550, 1=subset of 16550 */
 105         u8 reserved[3];
 106         struct acpi_generic_address serial_port;
 107         u8 interrupt_type;
 108         u8 pc_interrupt;
 109         u32 interrupt;
 110         u8 baud_rate;
 111         u8 parity;
 112         u8 stop_bits;
 113         u8 flow_control;
 114         u8 terminal_type;
 115         u8 language;
 116         u16 pci_device_id;
 117         u16 pci_vendor_id;
 118         u8 pci_bus;
 119         u8 pci_device;
 120         u8 pci_function;
 121         u32 pci_flags;
 122         u8 pci_segment;
 123         u32 uart_clk_freq;
 124         u32 precise_baudrate;
 125         u16 name_space_string_length;
 126         u16 name_space_string_offset;
 127         char name_space_string[];
 128 };
 129
 130 /* Masks for pci_flags field above */
 131
 132 #define ACPI_SPCR_DO_NOT_DISABLE    (1)
 133
 134 /* Values for Interface Type: See the definition of the DBG2 table */
 135
 136 /*******************************************************************************
 137  *
 138  * SPMI - Server Platform Management Interface table
 139  *        Version 5
 140  *
 141  * Conforms to "Intelligent Platform Management Interface Specification
 142  * Second Generation v2.0", Document Revision 1.0, February 12, 2004 with
 143  * June 12, 2009 markup.
 144  *
 145  ******************************************************************************/
 146
 147 struct acpi_table_spmi {
 148         struct acpi_table_header header;        /* Common ACPI table header */
 149         u8 interface_type;
 150         u8 reserved;            /* Must be 1 */
 151         u16 spec_revision;      /* Version of IPMI */
 152         u8 interrupt_type;
 153         u8 gpe_number;          /* GPE assigned */
 154         u8 reserved1;
 155         u8 pci_device_flag;
 156         u32 interrupt;
 157         struct acpi_generic_address ipmi_register;
 158         u8 pci_segment;
 159         u8 pci_bus;
 160         u8 pci_device;
 161         u8 pci_function;
 162         u8 reserved2;
 163 };
 164
 165 /* Values for interface_type above */
 166
 167 enum acpi_spmi_interface_types {
 168         ACPI_SPMI_NOT_USED = 0,
 169         ACPI_SPMI_KEYBOARD = 1,
 170         ACPI_SPMI_SMI = 2,
 171         ACPI_SPMI_BLOCK_TRANSFER = 3,
 172         ACPI_SPMI_SMBUS = 4,
 173         ACPI_SPMI_RESERVED = 5  /* 5 and above are reserved */
 174 };
 175
 176 /*******************************************************************************
 177  *
 178  * SRAT - System Resource Affinity Table
 179  *        Version 3
 180  *
 181  ******************************************************************************/
 182
 183 struct acpi_table_srat {
 184         struct acpi_table_header header;        /* Common ACPI table header */
 185         u32 table_revision;     /* Must be value '1' */
 186         u64 reserved;           /* Reserved, must be zero */
 187 };
 188
 189 /* Values for subtable type in struct acpi_subtable_header */
 190
 191 enum acpi_srat_type {
 192         ACPI_SRAT_TYPE_CPU_AFFINITY = 0,
 193         ACPI_SRAT_TYPE_MEMORY_AFFINITY = 1,
 194         ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY = 2,
 195         ACPI_SRAT_TYPE_GICC_AFFINITY = 3,
 196         ACPI_SRAT_TYPE_GIC_ITS_AFFINITY = 4,    /* ACPI 6.2 */
 197         ACPI_SRAT_TYPE_GENERIC_AFFINITY = 5,    /* ACPI 6.3 */
 198         ACPI_SRAT_TYPE_GENERIC_PORT_AFFINITY = 6,       /* ACPI 6.4 */
 199         ACPI_SRAT_TYPE_RINTC_AFFINITY = 7,      /* ACPI 6.6 */
 200         ACPI_SRAT_TYPE_RESERVED = 8     /* 8 and greater are reserved */
 201 };
 202
 203 /*
 204  * SRAT Subtables, correspond to Type in struct acpi_subtable_header
 205  */
 206
 207 /* 0: Processor Local APIC/SAPIC Affinity */
 208
 209 struct acpi_srat_cpu_affinity {
 210         struct acpi_subtable_header header;
 211         u8 proximity_domain_lo;
 212         u8 apic_id;
 213         u32 flags;
 214         u8 local_sapic_eid;
 215         u8 proximity_domain_hi[3];
 216         u32 clock_domain;
 217 };
 218
 219 /* Flags */
 220
 221 #define ACPI_SRAT_CPU_USE_AFFINITY  (1) /* 00: Use affinity structure */
 222
 223 /* 1: Memory Affinity */
 224
 225 struct acpi_srat_mem_affinity {
 226         struct acpi_subtable_header header;
 227         u32 proximity_domain;
 228         u16 reserved;           /* Reserved, must be zero */
 229         u64 base_address;
 230         u64 length;
 231         u32 reserved1;
 232         u32 flags;
 233         u64 reserved2;          /* Reserved, must be zero */
 234 };
 235
 236 /* Flags */
 237
 238 #define ACPI_SRAT_MEM_ENABLED       (1) /* 00: Use affinity structure */
 239 #define ACPI_SRAT_MEM_HOT_PLUGGABLE (1<<1)      /* 01: Memory region is hot pluggable */
 240 #define ACPI_SRAT_MEM_NON_VOLATILE  (1<<2)      /* 02: Memory region is non-volatile */
 241
 242 /* 2: Processor Local X2_APIC Affinity (ACPI 4.0) */
 243
 244 struct acpi_srat_x2apic_cpu_affinity {
 245         struct acpi_subtable_header header;
 246         u16 reserved;           /* Reserved, must be zero */
 247         u32 proximity_domain;
 248         u32 apic_id;
 249         u32 flags;
 250         u32 clock_domain;
 251         u32 reserved2;
 252 };
 253
 254 /* Flags for struct acpi_srat_cpu_affinity and struct acpi_srat_x2apic_cpu_affinity */
 255
 256 #define ACPI_SRAT_CPU_ENABLED       (1) /* 00: Use affinity structure */
 257
 258 /* 3: GICC Affinity (ACPI 5.1) */
 259
 260 struct acpi_srat_gicc_affinity {
 261         struct acpi_subtable_header header;
 262         u32 proximity_domain;
 263         u32 acpi_processor_uid;
 264         u32 flags;
 265         u32 clock_domain;
 266 };
 267
 268 /* Flags for struct acpi_srat_gicc_affinity */
 269
 270 #define ACPI_SRAT_GICC_ENABLED     (1)  /* 00: Use affinity structure */
 271
 272 /* 4: GCC ITS Affinity (ACPI 6.2) */
 273
 274 struct acpi_srat_gic_its_affinity {
 275         struct acpi_subtable_header header;
 276         u32 proximity_domain;
 277         u16 reserved;
 278         u32 its_id;
 279 };
 280
 281 /*
 282  * Common structure for SRAT subtable types:
 283  * 5: ACPI_SRAT_TYPE_GENERIC_AFFINITY
 284  * 6: ACPI_SRAT_TYPE_GENERIC_PORT_AFFINITY
 285  */
 286
 287 #define ACPI_SRAT_DEVICE_HANDLE_SIZE    16
 288
 289 struct acpi_srat_generic_affinity {
 290         struct acpi_subtable_header header;
 291         u8 reserved;
 292         u8 device_handle_type;
 293         u32 proximity_domain;
 294         u8 device_handle[ACPI_SRAT_DEVICE_HANDLE_SIZE];
 295         u32 flags;
 296         u32 reserved1;
 297 };
 298
 299 /* Flags for struct acpi_srat_generic_affinity */
 300
 301 #define ACPI_SRAT_GENERIC_AFFINITY_ENABLED     (1)      /* 00: Use affinity structure */
 302 #define ACPI_SRAT_ARCHITECTURAL_TRANSACTIONS   (1<<1)   /* ACPI 6.4 */
 303
 304 /* 7: RINTC Affinity Structure(ACPI 6.6) */
 305
 306 struct acpi_srat_rintc_affinity {
 307         struct acpi_subtable_header header;
 308         u16 reserved;
 309         u32 proximity_domain;
 310         u32 acpi_processor_uid;
 311         u32 flags;
 312         u32 clock_domain;
 313 };
 314
 315 /* Flags for struct acpi_srat_rintc_affinity */
 316
 317 #define ACPI_SRAT_RINTC_ENABLED     (1) /* 00: Use affinity structure */
 318
 319 /*******************************************************************************
 320  *
 321  * STAO - Status Override Table (_STA override) - ACPI 6.0
 322  *        Version 1
 323  *
 324  * Conforms to "ACPI Specification for Status Override Table"
 325  * 6 January 2015
 326  *
 327  ******************************************************************************/
 328
 329 struct acpi_table_stao {
 330         struct acpi_table_header header;        /* Common ACPI table header */
 331         u8 ignore_uart;
 332 };
 333
 334 /*******************************************************************************
 335  *
 336  * TCPA - Trusted Computing Platform Alliance table
 337  *        Version 2
 338  *
 339  * TCG Hardware Interface Table for TPM 1.2 Clients and Servers
 340  *
 341  * Conforms to "TCG ACPI Specification, Family 1.2 and 2.0",
 342  * Version 1.2, Revision 8
 343  * February 27, 2017
 344  *
 345  * NOTE: There are two versions of the table with the same signature --
 346  * the client version and the server version. The common platform_class
 347  * field is used to differentiate the two types of tables.
 348  *
 349  ******************************************************************************/
 350
 351 struct acpi_table_tcpa_hdr {
 352         struct acpi_table_header header;        /* Common ACPI table header */
 353         u16 platform_class;
 354 };
 355
 356 /*
 357  * Values for platform_class above.
 358  * This is how the client and server subtables are differentiated
 359  */
 360 #define ACPI_TCPA_CLIENT_TABLE          0
 361 #define ACPI_TCPA_SERVER_TABLE          1
 362
 363 struct acpi_table_tcpa_client {
 364         u32 minimum_log_length; /* Minimum length for the event log area */
 365         u64 log_address;        /* Address of the event log area */
 366 };
 367
 368 struct acpi_table_tcpa_server {
 369         u16 reserved;
 370         u64 minimum_log_length; /* Minimum length for the event log area */
 371         u64 log_address;        /* Address of the event log area */
 372         u16 spec_revision;
 373         u8 device_flags;
 374         u8 interrupt_flags;
 375         u8 gpe_number;
 376         u8 reserved2[3];
 377         u32 global_interrupt;
 378         struct acpi_generic_address address;
 379         u32 reserved3;
 380         struct acpi_generic_address config_address;
 381         u8 group;
 382         u8 bus;                 /* PCI Bus/Segment/Function numbers */
 383         u8 device;
 384         u8 function;
 385 };
 386
 387 /* Values for device_flags above */
 388
 389 #define ACPI_TCPA_PCI_DEVICE            (1)
 390 #define ACPI_TCPA_BUS_PNP               (1<<1)
 391 #define ACPI_TCPA_ADDRESS_VALID         (1<<2)
 392
 393 /* Values for interrupt_flags above */
 394
 395 #define ACPI_TCPA_INTERRUPT_MODE        (1)
 396 #define ACPI_TCPA_INTERRUPT_POLARITY    (1<<1)
 397 #define ACPI_TCPA_SCI_VIA_GPE           (1<<2)
 398 #define ACPI_TCPA_GLOBAL_INTERRUPT      (1<<3)
 399
 400 /*******************************************************************************
 401  *
 402  * TPM2 - Trusted Platform Module (TPM) 2.0 Hardware Interface Table
 403  *        Version 4
 404  *
 405  * TCG Hardware Interface Table for TPM 2.0 Clients and Servers
 406  *
 407  * Conforms to "TCG ACPI Specification, Family 1.2 and 2.0",
 408  * Version 1.2, Revision 8
 409  * February 27, 2017
 410  *
 411  ******************************************************************************/
 412
 413 /* Revision 3 */
 414
 415 struct acpi_table_tpm23 {
 416         struct acpi_table_header header;        /* Common ACPI table header */
 417         u32 reserved;
 418         u64 control_address;
 419         u32 start_method;
 420 };
 421
 422 /* Value for start_method above */
 423
 424 #define ACPI_TPM23_ACPI_START_METHOD                 2
 425
 426 /*
 427  * Optional trailer for revision 3. If start method is 2, there is a 4 byte
 428  * reserved area of all zeros.
 429  */
 430 struct acpi_tmp23_trailer {
 431         u32 reserved;
 432 };
 433
 434 /* Revision 4 */
 435
 436 struct acpi_table_tpm2 {
 437         struct acpi_table_header header;        /* Common ACPI table header */
 438         u16 platform_class;
 439         u16 reserved;
 440         u64 control_address;
 441         u32 start_method;
 442
 443         /* Platform-specific data follows */
 444 };
 445
 446 /* Optional trailer for revision 4 holding platform-specific data */
 447 struct acpi_tpm2_phy {
 448         u8  start_method_specific[12];
 449         u32 log_area_minimum_length;
 450         u64 log_area_start_address;
 451 };
 452
 453 /* Values for start_method above */
 454
 455 #define ACPI_TPM2_NOT_ALLOWED                       0
 456 #define ACPI_TPM2_RESERVED1                         1
 457 #define ACPI_TPM2_START_METHOD                      2
 458 #define ACPI_TPM2_RESERVED3                         3
 459 #define ACPI_TPM2_RESERVED4                         4
 460 #define ACPI_TPM2_RESERVED5                         5
 461 #define ACPI_TPM2_MEMORY_MAPPED                     6
 462 #define ACPI_TPM2_COMMAND_BUFFER                    7
 463 #define ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD  8
 464 #define ACPI_TPM2_RESERVED9                         9
 465 #define ACPI_TPM2_RESERVED10                        10
 466 #define ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC       11  /* V1.2 Rev 8 */
 467 #define ACPI_TPM2_RESERVED                          12
 468 #define ACPI_TPM2_COMMAND_BUFFER_WITH_PLUTON        13
 469
 470 /* Optional trailer appears after any start_method subtables */
 471
 472 struct acpi_tpm2_trailer {
 473         u8 method_parameters[12];
 474         u32 minimum_log_length; /* Minimum length for the event log area */
 475         u64 log_address;        /* Address of the event log area */
 476 };
 477
 478 /*
 479  * Subtables (start_method-specific)
 480  */
 481
 482 /* 11: Start Method for ARM SMC (V1.2 Rev 8) */
 483
 484 struct acpi_tpm2_arm_smc {
 485         u32 global_interrupt;
 486         u8 interrupt_flags;
 487         u8 operation_flags;
 488         u16 reserved;
 489         u32 function_id;
 490 };
 491
 492 /* Values for interrupt_flags above */
 493
 494 #define ACPI_TPM2_INTERRUPT_SUPPORT     (1)
 495
 496 /* Values for operation_flags above */
 497
 498 #define ACPI_TPM2_IDLE_SUPPORT          (1)
 499
 500 /*******************************************************************************
 501  *
 502  * UEFI - UEFI Boot optimization Table
 503  *        Version 1
 504  *
 505  * Conforms to "Unified Extensible Firmware Interface Specification",
 506  * Version 2.3, May 8, 2009
 507  *
 508  ******************************************************************************/
 509
 510 struct acpi_table_uefi {
 511         struct acpi_table_header header;        /* Common ACPI table header */
 512         u8 identifier[16];      /* UUID identifier */
 513         u16 data_offset;        /* Offset of remaining data in table */
 514 };
 515
 516 /*******************************************************************************
 517  *
 518  * VIOT - Virtual I/O Translation Table
 519  *        Version 1
 520  *
 521  ******************************************************************************/
 522
 523 struct acpi_table_viot {
 524         struct acpi_table_header header;        /* Common ACPI table header */
 525         u16 node_count;
 526         u16 node_offset;
 527         u8 reserved[8];
 528 };
 529
 530 /* VIOT subtable header */
 531
 532 struct acpi_viot_header {
 533         u8 type;
 534         u8 reserved;
 535         u16 length;
 536 };
 537
 538 /* Values for Type field above */
 539
 540 enum acpi_viot_node_type {
 541         ACPI_VIOT_NODE_PCI_RANGE = 0x01,
 542         ACPI_VIOT_NODE_MMIO = 0x02,
 543         ACPI_VIOT_NODE_VIRTIO_IOMMU_PCI = 0x03,
 544         ACPI_VIOT_NODE_VIRTIO_IOMMU_MMIO = 0x04,
 545         ACPI_VIOT_RESERVED = 0x05
 546 };
 547
 548 /* VIOT subtables */
 549
 550 struct acpi_viot_pci_range {
 551         struct acpi_viot_header header;
 552         u32 endpoint_start;
 553         u16 segment_start;
 554         u16 segment_end;
 555         u16 bdf_start;
 556         u16 bdf_end;
 557         u16 output_node;
 558         u8 reserved[6];
 559 };
 560
 561 struct acpi_viot_mmio {
 562         struct acpi_viot_header header;
 563         u32 endpoint;
 564         u64 base_address;
 565         u16 output_node;
 566         u8 reserved[6];
 567 };
 568
 569 struct acpi_viot_virtio_iommu_pci {
 570         struct acpi_viot_header header;
 571         u16 segment;
 572         u16 bdf;
 573         u8 reserved[8];
 574 };
 575
 576 struct acpi_viot_virtio_iommu_mmio {
 577         struct acpi_viot_header header;
 578         u8 reserved[4];
 579         u64 base_address;
 580 };
 581
 582 /*******************************************************************************
 583  *
 584  * WAET - Windows ACPI Emulated devices Table
 585  *        Version 1
 586  *
 587  * Conforms to "Windows ACPI Emulated Devices Table", version 1.0, April 6, 2009
 588  *
 589  ******************************************************************************/
 590
 591 struct acpi_table_waet {
 592         struct acpi_table_header header;        /* Common ACPI table header */
 593         u32 flags;
 594 };
 595
 596 /* Masks for Flags field above */
 597
 598 #define ACPI_WAET_RTC_NO_ACK        (1) /* RTC requires no int acknowledge */
 599 #define ACPI_WAET_TIMER_ONE_READ    (1<<1)      /* PM timer requires only one read */
 600
 601 /*******************************************************************************
 602  *
 603  * WDAT - Watchdog Action Table
 604  *        Version 1
 605  *
 606  * Conforms to "Hardware Watchdog Timers Design Specification",
 607  * Copyright 2006 Microsoft Corporation.
 608  *
 609  ******************************************************************************/
 610
 611 struct acpi_table_wdat {
 612         struct acpi_table_header header;        /* Common ACPI table header */
 613         u32 header_length;      /* Watchdog Header Length */
 614         u16 pci_segment;        /* PCI Segment number */
 615         u8 pci_bus;             /* PCI Bus number */
 616         u8 pci_device;          /* PCI Device number */
 617         u8 pci_function;        /* PCI Function number */
 618         u8 reserved[3];
 619         u32 timer_period;       /* Period of one timer count (msec) */
 620         u32 max_count;          /* Maximum counter value supported */
 621         u32 min_count;          /* Minimum counter value */
 622         u8 flags;
 623         u8 reserved2[3];
 624         u32 entries;            /* Number of watchdog entries that follow */
 625 };
 626
 627 /* Masks for Flags field above */
 628
 629 #define ACPI_WDAT_ENABLED           (1)
 630 #define ACPI_WDAT_STOPPED           0x80
 631
 632 /* WDAT Instruction Entries (actions) */
 633
 634 struct acpi_wdat_entry {
 635         u8 action;
 636         u8 instruction;
 637         u16 reserved;
 638         struct acpi_generic_address register_region;
 639         u32 value;              /* Value used with Read/Write register */
 640         u32 mask;               /* Bitmask required for this register instruction */
 641 };
 642
 643 /* Values for Action field above */
 644
 645 enum acpi_wdat_actions {
 646         ACPI_WDAT_RESET = 1,
 647         ACPI_WDAT_GET_CURRENT_COUNTDOWN = 4,
 648         ACPI_WDAT_GET_COUNTDOWN = 5,
 649         ACPI_WDAT_SET_COUNTDOWN = 6,
 650         ACPI_WDAT_GET_RUNNING_STATE = 8,
 651         ACPI_WDAT_SET_RUNNING_STATE = 9,
 652         ACPI_WDAT_GET_STOPPED_STATE = 10,
 653         ACPI_WDAT_SET_STOPPED_STATE = 11,
 654         ACPI_WDAT_GET_REBOOT = 16,
 655         ACPI_WDAT_SET_REBOOT = 17,
 656         ACPI_WDAT_GET_SHUTDOWN = 18,
 657         ACPI_WDAT_SET_SHUTDOWN = 19,
 658         ACPI_WDAT_GET_STATUS = 32,
 659         ACPI_WDAT_SET_STATUS = 33,
 660         ACPI_WDAT_ACTION_RESERVED = 34  /* 34 and greater are reserved */
 661 };
 662
 663 /* Values for Instruction field above */
 664
 665 enum acpi_wdat_instructions {
 666         ACPI_WDAT_READ_VALUE = 0,
 667         ACPI_WDAT_READ_COUNTDOWN = 1,
 668         ACPI_WDAT_WRITE_VALUE = 2,
 669         ACPI_WDAT_WRITE_COUNTDOWN = 3,
 670         ACPI_WDAT_INSTRUCTION_RESERVED = 4,     /* 4 and greater are reserved */
 671         ACPI_WDAT_PRESERVE_REGISTER = 0x80      /* Except for this value */
 672 };
 673
 674 /*******************************************************************************
 675  *
 676  * WDDT - Watchdog Descriptor Table
 677  *        Version 1
 678  *
 679  * Conforms to "Using the Intel ICH Family Watchdog Timer (WDT)",
 680  * Version 001, September 2002
 681  *
 682  ******************************************************************************/
 683
 684 struct acpi_table_wddt {
 685         struct acpi_table_header header;        /* Common ACPI table header */
 686         u16 spec_version;
 687         u16 table_version;
 688         u16 pci_vendor_id;
 689         struct acpi_generic_address address;
 690         u16 max_count;          /* Maximum counter value supported */
 691         u16 min_count;          /* Minimum counter value supported */
 692         u16 period;
 693         u16 status;
 694         u16 capability;
 695 };
 696
 697 /* Flags for Status field above */
 698
 699 #define ACPI_WDDT_AVAILABLE     (1)
 700 #define ACPI_WDDT_ACTIVE        (1<<1)
 701 #define ACPI_WDDT_TCO_OS_OWNED  (1<<2)
 702 #define ACPI_WDDT_USER_RESET    (1<<11)
 703 #define ACPI_WDDT_WDT_RESET     (1<<12)
 704 #define ACPI_WDDT_POWER_FAIL    (1<<13)
 705 #define ACPI_WDDT_UNKNOWN_RESET (1<<14)
 706
 707 /* Flags for Capability field above */
 708
 709 #define ACPI_WDDT_AUTO_RESET    (1)
 710 #define ACPI_WDDT_ALERT_SUPPORT (1<<1)
 711
 712 /*******************************************************************************
 713  *
 714  * WDRT - Watchdog Resource Table
 715  *        Version 1
 716  *
 717  * Conforms to "Watchdog Timer Hardware Requirements for Windows Server 2003",
 718  * Version 1.01, August 28, 2006
 719  *
 720  ******************************************************************************/
 721
 722 struct acpi_table_wdrt {
 723         struct acpi_table_header header;        /* Common ACPI table header */
 724         struct acpi_generic_address control_register;
 725         struct acpi_generic_address count_register;
 726         u16 pci_device_id;
 727         u16 pci_vendor_id;
 728         u8 pci_bus;             /* PCI Bus number */
 729         u8 pci_device;          /* PCI Device number */
 730         u8 pci_function;        /* PCI Function number */
 731         u8 pci_segment;         /* PCI Segment number */
 732         u16 max_count;          /* Maximum counter value supported */
 733         u8 units;
 734 };
 735
 736 /*******************************************************************************
 737  *
 738  * WPBT - Windows Platform Environment Table (ACPI 6.0)
 739  *        Version 1
 740  *
 741  * Conforms to "Windows Platform Binary Table (WPBT)" 29 November 2011
 742  *
 743  ******************************************************************************/
 744
 745 struct acpi_table_wpbt {
 746         struct acpi_table_header header;        /* Common ACPI table header */
 747         u32 handoff_size;
 748         u64 handoff_address;
 749         u8 layout;
 750         u8 type;
 751         u16 arguments_length;
 752 };
 753
 754 struct acpi_wpbt_unicode {
 755         u16 *unicode_string;
 756 };
 757
 758 /*******************************************************************************
 759  *
 760  * WSMT - Windows SMM Security Mitigations Table
 761  *        Version 1
 762  *
 763  * Conforms to "Windows SMM Security Mitigations Table",
 764  * Version 1.0, April 18, 2016
 765  *
 766  ******************************************************************************/
 767
 768 struct acpi_table_wsmt {
 769         struct acpi_table_header header;        /* Common ACPI table header */
 770         u32 protection_flags;
 771 };
 772
 773 /* Flags for protection_flags field above */
 774
 775 #define ACPI_WSMT_FIXED_COMM_BUFFERS                (1)
 776 #define ACPI_WSMT_COMM_BUFFER_NESTED_PTR_PROTECTION (2)
 777 #define ACPI_WSMT_SYSTEM_RESOURCE_PROTECTION        (4)
 778
 779 /*******************************************************************************
 780  *
 781  * XENV - Xen Environment Table (ACPI 6.0)
 782  *        Version 1
 783  *
 784  * Conforms to "ACPI Specification for Xen Environment Table" 4 January 2015
 785  *
 786  ******************************************************************************/
 787
 788 struct acpi_table_xenv {
 789         struct acpi_table_header header;        /* Common ACPI table header */
 790         u64 grant_table_address;
 791         u64 grant_table_size;
 792         u32 event_interrupt;
 793         u8 event_flags;
 794 };
 795
 796 /* Reset to default packing */
 797
 798 #pragma pack()
 799
 800 #endif                          /* __ACTBL3_H__ */