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TOMOYO Linux Cross Reference
Linux/include/xen/interface/platform.h

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  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__ */
532 

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