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_settime 17 39struct xenpf_settime { 40 /* IN variables. */ 41 uint32_t secs; 42 uint32_t nsecs; 43 uint64_t system_time; 44}; 45DEFINE_GUEST_HANDLE_STRUCT(xenpf_settime_t); 46 47/* 48 * Request memory range (@mfn, @mfn+@nr_mfns-1) to have type @type. 49 * On x86, @type is an architecture-defined MTRR memory type. 50 * On success, returns the MTRR that was used (@reg) and a handle that can 51 * be passed to XENPF_DEL_MEMTYPE to accurately tear down the new setting. 52 * (x86-specific). 53 */ 54#define XENPF_add_memtype 31 55struct xenpf_add_memtype { 56 /* IN variables. */ 57 xen_pfn_t mfn; 58 uint64_t nr_mfns; 59 uint32_t type; 60 /* OUT variables. */ 61 uint32_t handle; 62 uint32_t reg; 63}; 64DEFINE_GUEST_HANDLE_STRUCT(xenpf_add_memtype_t); 65 66/* 67 * Tear down an existing memory-range type. If @handle is remembered then it 68 * should be passed in to accurately tear down the correct setting (in case 69 * of overlapping memory regions with differing types). If it is not known 70 * then @handle should be set to zero. In all cases @reg must be set. 71 * (x86-specific). 72 */ 73#define XENPF_del_memtype 32 74struct xenpf_del_memtype { 75 /* IN variables. */ 76 uint32_t handle; 77 uint32_t reg; 78}; 79DEFINE_GUEST_HANDLE_STRUCT(xenpf_del_memtype_t); 80 81/* Read current type of an MTRR (x86-specific). */ 82#define XENPF_read_memtype 33 83struct xenpf_read_memtype { 84 /* IN variables. */ 85 uint32_t reg; 86 /* OUT variables. */ 87 xen_pfn_t mfn; 88 uint64_t nr_mfns; 89 uint32_t type; 90}; 91DEFINE_GUEST_HANDLE_STRUCT(xenpf_read_memtype_t); 92 93#define XENPF_microcode_update 35 94struct xenpf_microcode_update { 95 /* IN variables. */ 96 GUEST_HANDLE(void) data; /* Pointer to microcode data */ 97 uint32_t length; /* Length of microcode data. */ 98}; 99DEFINE_GUEST_HANDLE_STRUCT(xenpf_microcode_update_t); 100 101#define XENPF_platform_quirk 39 102#define QUIRK_NOIRQBALANCING 1 /* Do not restrict IO-APIC RTE targets */ 103#define QUIRK_IOAPIC_BAD_REGSEL 2 /* IO-APIC REGSEL forgets its value */ 104#define QUIRK_IOAPIC_GOOD_REGSEL 3 /* IO-APIC REGSEL behaves properly */ 105struct xenpf_platform_quirk { 106 /* IN variables. */ 107 uint32_t quirk_id; 108}; 109DEFINE_GUEST_HANDLE_STRUCT(xenpf_platform_quirk_t); 110 111#define XENPF_firmware_info 50 112#define XEN_FW_DISK_INFO 1 /* from int 13 AH=08/41/48 */ 113#define XEN_FW_DISK_MBR_SIGNATURE 2 /* from MBR offset 0x1b8 */ 114#define XEN_FW_VBEDDC_INFO 3 /* from int 10 AX=4f15 */ 115#define XEN_FW_KBD_SHIFT_FLAGS 5 /* Int16, Fn02: Get keyboard shift flags. */ 116struct xenpf_firmware_info { 117 /* IN variables. */ 118 uint32_t type; 119 uint32_t index; 120 /* OUT variables. */ 121 union { 122 struct { 123 /* Int13, Fn48: Check Extensions Present. */ 124 uint8_t device; /* %dl: bios device number */ 125 uint8_t version; /* %ah: major version */ 126 uint16_t interface_support; /* %cx: support bitmap */ 127 /* Int13, Fn08: Legacy Get Device Parameters. */ 128 uint16_t legacy_max_cylinder; /* %cl[7:6]:%ch: max cyl # */ 129 uint8_t legacy_max_head; /* %dh: max head # */ 130 uint8_t legacy_sectors_per_track; /* %cl[5:0]: max sector # */ 131 /* Int13, Fn41: Get Device Parameters (as filled into %ds:%esi). */ 132 /* NB. First uint16_t of buffer must be set to buffer size. */ 133 GUEST_HANDLE(void) edd_params; 134 } disk_info; /* XEN_FW_DISK_INFO */ 135 struct { 136 uint8_t device; /* bios device number */ 137 uint32_t mbr_signature; /* offset 0x1b8 in mbr */ 138 } disk_mbr_signature; /* XEN_FW_DISK_MBR_SIGNATURE */ 139 struct { 140 /* Int10, AX=4F15: Get EDID info. */ 141 uint8_t capabilities; 142 uint8_t edid_transfer_time; 143 /* must refer to 128-byte buffer */ 144 GUEST_HANDLE(uchar) edid; 145 } vbeddc_info; /* XEN_FW_VBEDDC_INFO */ 146 147 uint8_t kbd_shift_flags; /* XEN_FW_KBD_SHIFT_FLAGS */ 148 } u; 149}; 150DEFINE_GUEST_HANDLE_STRUCT(xenpf_firmware_info_t); 151 152#define XENPF_enter_acpi_sleep 51 153struct xenpf_enter_acpi_sleep { 154 /* IN variables */ 155 uint16_t val_a; /* PM1a control / sleep type A. */ 156 uint16_t val_b; /* PM1b control / sleep type B. */ 157 uint32_t sleep_state; /* Which state to enter (Sn). */ 158#define XENPF_ACPI_SLEEP_EXTENDED 0x00000001 159 uint32_t flags; /* XENPF_ACPI_SLEEP_*. */ 160}; 161DEFINE_GUEST_HANDLE_STRUCT(xenpf_enter_acpi_sleep_t); 162 163#define XENPF_change_freq 52 164struct xenpf_change_freq { 165 /* IN variables */ 166 uint32_t flags; /* Must be zero. */ 167 uint32_t cpu; /* Physical cpu. */ 168 uint64_t freq; /* New frequency (Hz). */ 169}; 170DEFINE_GUEST_HANDLE_STRUCT(xenpf_change_freq_t); 171 172/* 173 * Get idle times (nanoseconds since boot) for physical CPUs specified in the 174 * @cpumap_bitmap with range [0..@cpumap_nr_cpus-1]. The @idletime array is 175 * indexed by CPU number; only entries with the corresponding @cpumap_bitmap 176 * bit set are written to. On return, @cpumap_bitmap is modified so that any 177 * non-existent CPUs are cleared. Such CPUs have their @idletime array entry 178 * cleared. 179 */ 180#define XENPF_getidletime 53 181struct xenpf_getidletime { 182 /* IN/OUT variables */ 183 /* IN: CPUs to interrogate; OUT: subset of IN which are present */ 184 GUEST_HANDLE(uchar) cpumap_bitmap; 185 /* IN variables */ 186 /* Size of cpumap bitmap. */ 187 uint32_t cpumap_nr_cpus; 188 /* Must be indexable for every cpu in cpumap_bitmap. */ 189 GUEST_HANDLE(uint64_t) idletime; 190 /* OUT variables */ 191 /* System time when the idletime snapshots were taken. */ 192 uint64_t now; 193}; 194DEFINE_GUEST_HANDLE_STRUCT(xenpf_getidletime_t); 195 196#define XENPF_set_processor_pminfo 54 197 198/* ability bits */ 199#define XEN_PROCESSOR_PM_CX 1 200#define XEN_PROCESSOR_PM_PX 2 201#define XEN_PROCESSOR_PM_TX 4 202 203/* cmd type */ 204#define XEN_PM_CX 0 205#define XEN_PM_PX 1 206#define XEN_PM_TX 2 207#define XEN_PM_PDC 3 208/* Px sub info type */ 209#define XEN_PX_PCT 1 210#define XEN_PX_PSS 2 211#define XEN_PX_PPC 4 212#define XEN_PX_PSD 8 213 214struct xen_power_register { 215 uint32_t space_id; 216 uint32_t bit_width; 217 uint32_t bit_offset; 218 uint32_t access_size; 219 uint64_t address; 220}; 221 222struct xen_processor_csd { 223 uint32_t domain; /* domain number of one dependent group */ 224 uint32_t coord_type; /* coordination type */ 225 uint32_t num; /* number of processors in same domain */ 226}; 227DEFINE_GUEST_HANDLE_STRUCT(xen_processor_csd); 228 229struct xen_processor_cx { 230 struct xen_power_register reg; /* GAS for Cx trigger register */ 231 uint8_t type; /* cstate value, c0: 0, c1: 1, ... */ 232 uint32_t latency; /* worst latency (ms) to enter/exit this cstate */ 233 uint32_t power; /* average power consumption(mW) */ 234 uint32_t dpcnt; /* number of dependency entries */ 235 GUEST_HANDLE(xen_processor_csd) dp; /* NULL if no dependency */ 236}; 237DEFINE_GUEST_HANDLE_STRUCT(xen_processor_cx); 238 239struct xen_processor_flags { 240 uint32_t bm_control:1; 241 uint32_t bm_check:1; 242 uint32_t has_cst:1; 243 uint32_t power_setup_done:1; 244 uint32_t bm_rld_set:1; 245}; 246 247struct xen_processor_power { 248 uint32_t count; /* number of C state entries in array below */ 249 struct xen_processor_flags flags; /* global flags of this processor */ 250 GUEST_HANDLE(xen_processor_cx) states; /* supported c states */ 251}; 252 253struct xen_pct_register { 254 uint8_t descriptor; 255 uint16_t length; 256 uint8_t space_id; 257 uint8_t bit_width; 258 uint8_t bit_offset; 259 uint8_t reserved; 260 uint64_t address; 261}; 262 263struct xen_processor_px { 264 uint64_t core_frequency; /* megahertz */ 265 uint64_t power; /* milliWatts */ 266 uint64_t transition_latency; /* microseconds */ 267 uint64_t bus_master_latency; /* microseconds */ 268 uint64_t control; /* control value */ 269 uint64_t status; /* success indicator */ 270}; 271DEFINE_GUEST_HANDLE_STRUCT(xen_processor_px); 272 273struct xen_psd_package { 274 uint64_t num_entries; 275 uint64_t revision; 276 uint64_t domain; 277 uint64_t coord_type; 278 uint64_t num_processors; 279}; 280 281struct xen_processor_performance { 282 uint32_t flags; /* flag for Px sub info type */ 283 uint32_t platform_limit; /* Platform limitation on freq usage */ 284 struct xen_pct_register control_register; 285 struct xen_pct_register status_register; 286 uint32_t state_count; /* total available performance states */ 287 GUEST_HANDLE(xen_processor_px) states; 288 struct xen_psd_package domain_info; 289 uint32_t shared_type; /* coordination type of this processor */ 290}; 291DEFINE_GUEST_HANDLE_STRUCT(xen_processor_performance); 292 293struct xenpf_set_processor_pminfo { 294 /* IN variables */ 295 uint32_t id; /* ACPI CPU ID */ 296 uint32_t type; /* {XEN_PM_CX, XEN_PM_PX} */ 297 union { 298 struct xen_processor_power power;/* Cx: _CST/_CSD */ 299 struct xen_processor_performance perf; /* Px: _PPC/_PCT/_PSS/_PSD */ 300 GUEST_HANDLE(uint32_t) pdc; 301 }; 302}; 303DEFINE_GUEST_HANDLE_STRUCT(xenpf_set_processor_pminfo); 304 305#define XENPF_get_cpuinfo 55 306struct xenpf_pcpuinfo { 307 /* IN */ 308 uint32_t xen_cpuid; 309 /* OUT */ 310 /* The maxium cpu_id that is present */ 311 uint32_t max_present; 312#define XEN_PCPU_FLAGS_ONLINE 1 313 /* Correponding xen_cpuid is not present*/ 314#define XEN_PCPU_FLAGS_INVALID 2 315 uint32_t flags; 316 uint32_t apic_id; 317 uint32_t acpi_id; 318}; 319DEFINE_GUEST_HANDLE_STRUCT(xenpf_pcpuinfo); 320 321#define XENPF_cpu_online 56 322#define XENPF_cpu_offline 57 323struct xenpf_cpu_ol { 324 uint32_t cpuid; 325}; 326DEFINE_GUEST_HANDLE_STRUCT(xenpf_cpu_ol); 327 328#define XENPF_cpu_hotadd 58 329struct xenpf_cpu_hotadd { 330 uint32_t apic_id; 331 uint32_t acpi_id; 332 uint32_t pxm; 333}; 334 335#define XENPF_mem_hotadd 59 336struct xenpf_mem_hotadd { 337 uint64_t spfn; 338 uint64_t epfn; 339 uint32_t pxm; 340 uint32_t flags; 341}; 342 343#define XENPF_core_parking 60 344struct xenpf_core_parking { 345 /* IN variables */ 346#define XEN_CORE_PARKING_SET 1 347#define XEN_CORE_PARKING_GET 2 348 uint32_t type; 349 /* IN variables: set cpu nums expected to be idled */ 350 /* OUT variables: get cpu nums actually be idled */ 351 uint32_t idle_nums; 352}; 353DEFINE_GUEST_HANDLE_STRUCT(xenpf_core_parking); 354 355struct xen_platform_op { 356 uint32_t cmd; 357 uint32_t interface_version; /* XENPF_INTERFACE_VERSION */ 358 union { 359 struct xenpf_settime settime; 360 struct xenpf_add_memtype add_memtype; 361 struct xenpf_del_memtype del_memtype; 362 struct xenpf_read_memtype read_memtype; 363 struct xenpf_microcode_update microcode; 364 struct xenpf_platform_quirk platform_quirk; 365 struct xenpf_firmware_info firmware_info; 366 struct xenpf_enter_acpi_sleep enter_acpi_sleep; 367 struct xenpf_change_freq change_freq; 368 struct xenpf_getidletime getidletime; 369 struct xenpf_set_processor_pminfo set_pminfo; 370 struct xenpf_pcpuinfo pcpu_info; 371 struct xenpf_cpu_ol cpu_ol; 372 struct xenpf_cpu_hotadd cpu_add; 373 struct xenpf_mem_hotadd mem_add; 374 struct xenpf_core_parking core_parking; 375 uint8_t pad[128]; 376 } u; 377}; 378DEFINE_GUEST_HANDLE_STRUCT(xen_platform_op_t); 379 380#endif /* __XEN_PUBLIC_PLATFORM_H__ */ 381