include/xen/interface/platform.h

   1 /******************************************************************************
   2  * platform.h
   3  *
   4  * Hardware platform operations. Intended for use by domain-0 kernel.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to
   8  * deal in the Software without restriction, including without limitation the
   9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  10  * sell copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Copyright (c) 2002-2006, K Fraser
  25  */
  26
  27 #ifndef __XEN_PUBLIC_PLATFORM_H__
  28 #define __XEN_PUBLIC_PLATFORM_H__
  29
  30 #include <xen/interface/xen.h>
  31
  32 #define XENPF_INTERFACE_VERSION 0x03000001
  33
  34 /*
  35  * Set clock such that it would read <secs,nsecs> after 00:00:00 UTC,
  36  * 1 January, 1970 if the current system time was <system_time>.
  37  */
  38 #define XENPF_settime32             17
  39 struct xenpf_settime32 {
  40         /* IN variables. */
  41         uint32_t secs;
  42         uint32_t nsecs;
  43         uint64_t system_time;
  44 };
  45 DEFINE_GUEST_HANDLE_STRUCT(xenpf_settime32_t);
  46 #define XENPF_settime64           62
  47 struct xenpf_settime64 {
  48     /* IN variables. */
  49     uint64_t secs;
  50     uint32_t nsecs;
  51     uint32_t mbz;
  52     uint64_t system_time;
  53 };
  54 DEFINE_GUEST_HANDLE_STRUCT(xenpf_settime64_t);
  55
  56 /*
  57  * Request memory range (@mfn, @mfn+@nr_mfns-1) to have type @type.
  58  * On x86, @type is an architecture-defined MTRR memory type.
  59  * On success, returns the MTRR that was used (@reg) and a handle that can
  60  * be passed to XENPF_DEL_MEMTYPE to accurately tear down the new setting.
  61  * (x86-specific).
  62  */
  63 #define XENPF_add_memtype         31
  64 struct xenpf_add_memtype {
  65         /* IN variables. */
  66         xen_pfn_t mfn;
  67         uint64_t nr_mfns;
  68         uint32_t type;
  69         /* OUT variables. */
  70         uint32_t handle;
  71         uint32_t reg;
  72 };
  73 DEFINE_GUEST_HANDLE_STRUCT(xenpf_add_memtype_t);
  74
  75 /*
  76  * Tear down an existing memory-range type. If @handle is remembered then it
  77  * should be passed in to accurately tear down the correct setting (in case
  78  * of overlapping memory regions with differing types). If it is not known
  79  * then @handle should be set to zero. In all cases @reg must be set.
  80  * (x86-specific).
  81  */
  82 #define XENPF_del_memtype         32
  83 struct xenpf_del_memtype {
  84         /* IN variables. */
  85         uint32_t handle;
  86         uint32_t reg;
  87 };
  88 DEFINE_GUEST_HANDLE_STRUCT(xenpf_del_memtype_t);
  89
  90 /* Read current type of an MTRR (x86-specific). */
  91 #define XENPF_read_memtype        33
  92 struct xenpf_read_memtype {
  93         /* IN variables. */
  94         uint32_t reg;
  95         /* OUT variables. */
  96         xen_pfn_t mfn;
  97         uint64_t nr_mfns;
  98         uint32_t type;
  99 };
 100 DEFINE_GUEST_HANDLE_STRUCT(xenpf_read_memtype_t);
 101
 102 #define XENPF_microcode_update    35
 103 struct xenpf_microcode_update {
 104         /* IN variables. */
 105         GUEST_HANDLE(void) data;          /* Pointer to microcode data */
 106         uint32_t length;                  /* Length of microcode data. */
 107 };
 108 DEFINE_GUEST_HANDLE_STRUCT(xenpf_microcode_update_t);
 109
 110 #define XENPF_platform_quirk      39
 111 #define QUIRK_NOIRQBALANCING      1 /* Do not restrict IO-APIC RTE targets */
 112 #define QUIRK_IOAPIC_BAD_REGSEL   2 /* IO-APIC REGSEL forgets its value    */
 113 #define QUIRK_IOAPIC_GOOD_REGSEL  3 /* IO-APIC REGSEL behaves properly     */
 114 struct xenpf_platform_quirk {
 115         /* IN variables. */
 116         uint32_t quirk_id;
 117 };
 118 DEFINE_GUEST_HANDLE_STRUCT(xenpf_platform_quirk_t);
 119
 120 #define XENPF_efi_runtime_call    49
 121 #define XEN_EFI_get_time                      1
 122 #define XEN_EFI_set_time                      2
 123 #define XEN_EFI_get_wakeup_time               3
 124 #define XEN_EFI_set_wakeup_time               4
 125 #define XEN_EFI_get_next_high_monotonic_count 5
 126 #define XEN_EFI_get_variable                  6
 127 #define XEN_EFI_set_variable                  7
 128 #define XEN_EFI_get_next_variable_name        8
 129 #define XEN_EFI_query_variable_info           9
 130 #define XEN_EFI_query_capsule_capabilities   10
 131 #define XEN_EFI_update_capsule               11
 132
 133 struct xenpf_efi_runtime_call {
 134         uint32_t function;
 135         /*
 136          * This field is generally used for per sub-function flags (defined
 137          * below), except for the XEN_EFI_get_next_high_monotonic_count case,
 138          * where it holds the single returned value.
 139          */
 140         uint32_t misc;
 141         xen_ulong_t status;
 142         union {
 143 #define XEN_EFI_GET_TIME_SET_CLEARS_NS 0x00000001
 144                 struct {
 145                         struct xenpf_efi_time {
 146                                 uint16_t year;
 147                                 uint8_t month;
 148                                 uint8_t day;
 149                                 uint8_t hour;
 150                                 uint8_t min;
 151                                 uint8_t sec;
 152                                 uint32_t ns;
 153                                 int16_t tz;
 154                                 uint8_t daylight;
 155                         } time;
 156                         uint32_t resolution;
 157                         uint32_t accuracy;
 158                 } get_time;
 159
 160                 struct xenpf_efi_time set_time;
 161
 162 #define XEN_EFI_GET_WAKEUP_TIME_ENABLED 0x00000001
 163 #define XEN_EFI_GET_WAKEUP_TIME_PENDING 0x00000002
 164                 struct xenpf_efi_time get_wakeup_time;
 165
 166 #define XEN_EFI_SET_WAKEUP_TIME_ENABLE      0x00000001
 167 #define XEN_EFI_SET_WAKEUP_TIME_ENABLE_ONLY 0x00000002
 168                 struct xenpf_efi_time set_wakeup_time;
 169
 170 #define XEN_EFI_VARIABLE_NON_VOLATILE       0x00000001
 171 #define XEN_EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002
 172 #define XEN_EFI_VARIABLE_RUNTIME_ACCESS     0x00000004
 173                 struct {
 174                         GUEST_HANDLE(void) name;  /* UCS-2/UTF-16 string */
 175                         xen_ulong_t size;
 176                         GUEST_HANDLE(void) data;
 177                         struct xenpf_efi_guid {
 178                                 uint32_t data1;
 179                                 uint16_t data2;
 180                                 uint16_t data3;
 181                                 uint8_t data4[8];
 182                         } vendor_guid;
 183                 } get_variable, set_variable;
 184
 185                 struct {
 186                         xen_ulong_t size;
 187                         GUEST_HANDLE(void) name;  /* UCS-2/UTF-16 string */
 188                         struct xenpf_efi_guid vendor_guid;
 189                 } get_next_variable_name;
 190
 191                 struct {
 192                         uint32_t attr;
 193                         uint64_t max_store_size;
 194                         uint64_t remain_store_size;
 195                         uint64_t max_size;
 196                 } query_variable_info;
 197
 198                 struct {
 199                         GUEST_HANDLE(void) capsule_header_array;
 200                         xen_ulong_t capsule_count;
 201                         uint64_t max_capsule_size;
 202                         uint32_t reset_type;
 203                 } query_capsule_capabilities;
 204
 205                 struct {
 206                         GUEST_HANDLE(void) capsule_header_array;
 207                         xen_ulong_t capsule_count;
 208                         uint64_t sg_list; /* machine address */
 209                 } update_capsule;
 210         } u;
 211 };
 212 DEFINE_GUEST_HANDLE_STRUCT(xenpf_efi_runtime_call);
 213
 214 #define  XEN_FW_EFI_VERSION        0
 215 #define  XEN_FW_EFI_CONFIG_TABLE   1
 216 #define  XEN_FW_EFI_VENDOR         2
 217 #define  XEN_FW_EFI_MEM_INFO       3
 218 #define  XEN_FW_EFI_RT_VERSION     4
 219
 220 #define XENPF_firmware_info       50
 221 #define XEN_FW_DISK_INFO          1 /* from int 13 AH=08/41/48 */
 222 #define XEN_FW_DISK_MBR_SIGNATURE 2 /* from MBR offset 0x1b8 */
 223 #define XEN_FW_VBEDDC_INFO        3 /* from int 10 AX=4f15 */
 224 #define XEN_FW_EFI_INFO           4 /* from EFI */
 225 #define XEN_FW_KBD_SHIFT_FLAGS    5 /* Int16, Fn02: Get keyboard shift flags. */
 226
 227 struct xenpf_firmware_info {
 228         /* IN variables. */
 229         uint32_t type;
 230         uint32_t index;
 231         /* OUT variables. */
 232         union {
 233                 struct {
 234                         /* Int13, Fn48: Check Extensions Present. */
 235                         uint8_t device;                   /* %dl: bios device number */
 236                         uint8_t version;                  /* %ah: major version      */
 237                         uint16_t interface_support;       /* %cx: support bitmap     */
 238                         /* Int13, Fn08: Legacy Get Device Parameters. */
 239                         uint16_t legacy_max_cylinder;     /* %cl[7:6]:%ch: max cyl # */
 240                         uint8_t legacy_max_head;          /* %dh: max head #         */
 241                         uint8_t legacy_sectors_per_track; /* %cl[5:0]: max sector #  */
 242                         /* Int13, Fn41: Get Device Parameters (as filled into %ds:%esi). */
 243                         /* NB. First uint16_t of buffer must be set to buffer size.      */
 244                         GUEST_HANDLE(void) edd_params;
 245                 } disk_info; /* XEN_FW_DISK_INFO */
 246                 struct {
 247                         uint8_t device;                   /* bios device number  */
 248                         uint32_t mbr_signature;           /* offset 0x1b8 in mbr */
 249                 } disk_mbr_signature; /* XEN_FW_DISK_MBR_SIGNATURE */
 250                 struct {
 251                         /* Int10, AX=4F15: Get EDID info. */
 252                         uint8_t capabilities;
 253                         uint8_t edid_transfer_time;
 254                         /* must refer to 128-byte buffer */
 255                         GUEST_HANDLE(uchar) edid;
 256                 } vbeddc_info; /* XEN_FW_VBEDDC_INFO */
 257
 258                 union xenpf_efi_info {
 259                         uint32_t version;
 260                         struct {
 261                                 uint64_t addr;   /* EFI_CONFIGURATION_TABLE */
 262                                 uint32_t nent;
 263                         } cfg;
 264                         struct {
 265                                 uint32_t revision;
 266                                 uint32_t bufsz;  /* input, in bytes */
 267                                 GUEST_HANDLE(void) name;
 268                                 /* UCS-2/UTF-16 string */
 269                         } vendor;
 270                         struct {
 271                                 uint64_t addr;
 272                                 uint64_t size;
 273                                 uint64_t attr;
 274                                 uint32_t type;
 275                         } mem;
 276                 } efi_info; /* XEN_FW_EFI_INFO */
 277
 278                 uint8_t kbd_shift_flags; /* XEN_FW_KBD_SHIFT_FLAGS */
 279         } u;
 280 };
 281 DEFINE_GUEST_HANDLE_STRUCT(xenpf_firmware_info_t);
 282
 283 #define XENPF_enter_acpi_sleep    51
 284 struct xenpf_enter_acpi_sleep {
 285         /* IN variables */
 286         uint16_t val_a;             /* PM1a control / sleep type A. */
 287         uint16_t val_b;             /* PM1b control / sleep type B. */
 288         uint32_t sleep_state;       /* Which state to enter (Sn). */
 289 #define XENPF_ACPI_SLEEP_EXTENDED 0x00000001
 290         uint32_t flags;             /* XENPF_ACPI_SLEEP_*. */
 291 };
 292 DEFINE_GUEST_HANDLE_STRUCT(xenpf_enter_acpi_sleep_t);
 293
 294 #define XENPF_change_freq         52
 295 struct xenpf_change_freq {
 296         /* IN variables */
 297         uint32_t flags; /* Must be zero. */
 298         uint32_t cpu;   /* Physical cpu. */
 299         uint64_t freq;  /* New frequency (Hz). */
 300 };
 301 DEFINE_GUEST_HANDLE_STRUCT(xenpf_change_freq_t);
 302
 303 /*
 304  * Get idle times (nanoseconds since boot) for physical CPUs specified in the
 305  * @cpumap_bitmap with range [0..@cpumap_nr_cpus-1]. The @idletime array is
 306  * indexed by CPU number; only entries with the corresponding @cpumap_bitmap
 307  * bit set are written to. On return, @cpumap_bitmap is modified so that any
 308  * non-existent CPUs are cleared. Such CPUs have their @idletime array entry
 309  * cleared.
 310  */
 311 #define XENPF_getidletime         53
 312 struct xenpf_getidletime {
 313         /* IN/OUT variables */
 314         /* IN: CPUs to interrogate; OUT: subset of IN which are present */
 315         GUEST_HANDLE(uchar) cpumap_bitmap;
 316         /* IN variables */
 317         /* Size of cpumap bitmap. */
 318         uint32_t cpumap_nr_cpus;
 319         /* Must be indexable for every cpu in cpumap_bitmap. */
 320         GUEST_HANDLE(uint64_t) idletime;
 321         /* OUT variables */
 322         /* System time when the idletime snapshots were taken. */
 323         uint64_t now;
 324 };
 325 DEFINE_GUEST_HANDLE_STRUCT(xenpf_getidletime_t);
 326
 327 #define XENPF_set_processor_pminfo      54
 328
 329 /* ability bits */
 330 #define XEN_PROCESSOR_PM_CX     1
 331 #define XEN_PROCESSOR_PM_PX     2
 332 #define XEN_PROCESSOR_PM_TX     4
 333
 334 /* cmd type */
 335 #define XEN_PM_CX   0
 336 #define XEN_PM_PX   1
 337 #define XEN_PM_TX   2
 338 #define XEN_PM_PDC  3
 339 /* Px sub info type */
 340 #define XEN_PX_PCT   1
 341 #define XEN_PX_PSS   2
 342 #define XEN_PX_PPC   4
 343 #define XEN_PX_PSD   8
 344
 345 struct xen_power_register {
 346         uint32_t     space_id;
 347         uint32_t     bit_width;
 348         uint32_t     bit_offset;
 349         uint32_t     access_size;
 350         uint64_t     address;
 351 };
 352
 353 struct xen_processor_csd {
 354         uint32_t    domain;      /* domain number of one dependent group */
 355         uint32_t    coord_type;  /* coordination type */
 356         uint32_t    num;         /* number of processors in same domain */
 357 };
 358 DEFINE_GUEST_HANDLE_STRUCT(xen_processor_csd);
 359
 360 struct xen_processor_cx {
 361         struct xen_power_register  reg; /* GAS for Cx trigger register */
 362         uint8_t     type;     /* cstate value, c0: 0, c1: 1, ... */
 363         uint32_t    latency;  /* worst latency (ms) to enter/exit this cstate */
 364         uint32_t    power;    /* average power consumption(mW) */
 365         uint32_t    dpcnt;    /* number of dependency entries */
 366         GUEST_HANDLE(xen_processor_csd) dp; /* NULL if no dependency */
 367 };
 368 DEFINE_GUEST_HANDLE_STRUCT(xen_processor_cx);
 369
 370 struct xen_processor_flags {
 371         uint32_t bm_control:1;
 372         uint32_t bm_check:1;
 373         uint32_t has_cst:1;
 374         uint32_t power_setup_done:1;
 375         uint32_t bm_rld_set:1;
 376 };
 377
 378 struct xen_processor_power {
 379         uint32_t count;  /* number of C state entries in array below */
 380         struct xen_processor_flags flags;  /* global flags of this processor */
 381         GUEST_HANDLE(xen_processor_cx) states; /* supported c states */
 382 };
 383
 384 struct xen_pct_register {
 385         uint8_t  descriptor;
 386         uint16_t length;
 387         uint8_t  space_id;
 388         uint8_t  bit_width;
 389         uint8_t  bit_offset;
 390         uint8_t  reserved;
 391         uint64_t address;
 392 };
 393
 394 struct xen_processor_px {
 395         uint64_t core_frequency; /* megahertz */
 396         uint64_t power;      /* milliWatts */
 397         uint64_t transition_latency; /* microseconds */
 398         uint64_t bus_master_latency; /* microseconds */
 399         uint64_t control;        /* control value */
 400         uint64_t status;     /* success indicator */
 401 };
 402 DEFINE_GUEST_HANDLE_STRUCT(xen_processor_px);
 403
 404 struct xen_psd_package {
 405         uint64_t num_entries;
 406         uint64_t revision;
 407         uint64_t domain;
 408         uint64_t coord_type;
 409         uint64_t num_processors;
 410 };
 411
 412 struct xen_processor_performance {
 413         uint32_t flags;     /* flag for Px sub info type */
 414         uint32_t platform_limit;  /* Platform limitation on freq usage */
 415         struct xen_pct_register control_register;
 416         struct xen_pct_register status_register;
 417         uint32_t state_count;     /* total available performance states */
 418         GUEST_HANDLE(xen_processor_px) states;
 419         struct xen_psd_package domain_info;
 420         uint32_t shared_type;     /* coordination type of this processor */
 421 };
 422 DEFINE_GUEST_HANDLE_STRUCT(xen_processor_performance);
 423
 424 struct xenpf_set_processor_pminfo {
 425         /* IN variables */
 426         uint32_t id;    /* ACPI CPU ID */
 427         uint32_t type;  /* {XEN_PM_CX, XEN_PM_PX} */
 428         union {
 429                 struct xen_processor_power          power;/* Cx: _CST/_CSD */
 430                 struct xen_processor_performance    perf; /* Px: _PPC/_PCT/_PSS/_PSD */
 431                 GUEST_HANDLE(uint32_t)              pdc;
 432         };
 433 };
 434 DEFINE_GUEST_HANDLE_STRUCT(xenpf_set_processor_pminfo);
 435
 436 #define XENPF_get_cpuinfo 55
 437 struct xenpf_pcpuinfo {
 438         /* IN */
 439         uint32_t xen_cpuid;
 440         /* OUT */
 441         /* The maxium cpu_id that is present */
 442         uint32_t max_present;
 443 #define XEN_PCPU_FLAGS_ONLINE   1
 444         /* Correponding xen_cpuid is not present*/
 445 #define XEN_PCPU_FLAGS_INVALID  2
 446         uint32_t flags;
 447         uint32_t apic_id;
 448         uint32_t acpi_id;
 449 };
 450 DEFINE_GUEST_HANDLE_STRUCT(xenpf_pcpuinfo);
 451
 452 #define XENPF_cpu_online        56
 453 #define XENPF_cpu_offline       57
 454 struct xenpf_cpu_ol {
 455         uint32_t cpuid;
 456 };
 457 DEFINE_GUEST_HANDLE_STRUCT(xenpf_cpu_ol);
 458
 459 #define XENPF_cpu_hotadd        58
 460 struct xenpf_cpu_hotadd {
 461         uint32_t apic_id;
 462         uint32_t acpi_id;
 463         uint32_t pxm;
 464 };
 465
 466 #define XENPF_mem_hotadd        59
 467 struct xenpf_mem_hotadd {
 468         uint64_t spfn;
 469         uint64_t epfn;
 470         uint32_t pxm;
 471         uint32_t flags;
 472 };
 473
 474 #define XENPF_core_parking     60
 475 struct xenpf_core_parking {
 476         /* IN variables */
 477 #define XEN_CORE_PARKING_SET   1
 478 #define XEN_CORE_PARKING_GET   2
 479         uint32_t type;
 480         /* IN variables:  set cpu nums expected to be idled */
 481         /* OUT variables: get cpu nums actually be idled */
 482         uint32_t idle_nums;
 483 };
 484 DEFINE_GUEST_HANDLE_STRUCT(xenpf_core_parking);
 485
 486 #define XENPF_get_symbol      63
 487 struct xenpf_symdata {
 488         /* IN/OUT variables */
 489         uint32_t        namelen; /* size of 'name' buffer */
 490
 491         /* IN/OUT variables */
 492         uint32_t        symnum; /* IN:  Symbol to read                       */
 493                                 /* OUT: Next available symbol. If same as IN */
 494                                 /* then  we reached the end                  */
 495
 496         /* OUT variables */
 497         GUEST_HANDLE(char) name;
 498         uint64_t        address;
 499         char            type;
 500 };
 501 DEFINE_GUEST_HANDLE_STRUCT(xenpf_symdata);
 502
 503 struct xen_platform_op {
 504         uint32_t cmd;
 505         uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
 506         union {
 507                 struct xenpf_settime32         settime32;
 508                 struct xenpf_settime64         settime64;
 509                 struct xenpf_add_memtype       add_memtype;
 510                 struct xenpf_del_memtype       del_memtype;
 511                 struct xenpf_read_memtype      read_memtype;
 512                 struct xenpf_microcode_update  microcode;
 513                 struct xenpf_platform_quirk    platform_quirk;
 514                 struct xenpf_efi_runtime_call  efi_runtime_call;
 515                 struct xenpf_firmware_info     firmware_info;
 516                 struct xenpf_enter_acpi_sleep  enter_acpi_sleep;
 517                 struct xenpf_change_freq       change_freq;
 518                 struct xenpf_getidletime       getidletime;
 519                 struct xenpf_set_processor_pminfo set_pminfo;
 520                 struct xenpf_pcpuinfo          pcpu_info;
 521                 struct xenpf_cpu_ol            cpu_ol;
 522                 struct xenpf_cpu_hotadd        cpu_add;
 523                 struct xenpf_mem_hotadd        mem_add;
 524                 struct xenpf_core_parking      core_parking;
 525                 struct xenpf_symdata           symdata;
 526                 uint8_t                        pad[128];
 527         } u;
 528 };
 529 DEFINE_GUEST_HANDLE_STRUCT(xen_platform_op_t);
 530
 531 #endif /* __XEN_PUBLIC_PLATFORM_H__ */