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__ */