aboutsummaryrefslogtreecommitdiffstats
path: root/include/xen/interface/platform.h
blob: 4755b5fac9c736b5fc010ae5d9a3e8c70838a232 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
/******************************************************************************
 * platform.h
 *
 * Hardware platform operations. Intended for use by domain-0 kernel.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Copyright (c) 2002-2006, K Fraser
 */

#ifndef __XEN_PUBLIC_PLATFORM_H__
#define __XEN_PUBLIC_PLATFORM_H__

#include <xen/interface/xen.h>

#define XENPF_INTERFACE_VERSION 0x03000001

/*
 * Set clock such that it would read <secs,nsecs> after 00:00:00 UTC,
 * 1 January, 1970 if the current system time was <system_time>.
 */
#define XENPF_settime             17
struct xenpf_settime {
	/* IN variables. */
	uint32_t secs;
	uint32_t nsecs;
	uint64_t system_time;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_settime_t);

/*
 * Request memory range (@mfn, @mfn+@nr_mfns-1) to have type @type.
 * On x86, @type is an architecture-defined MTRR memory type.
 * On success, returns the MTRR that was used (@reg) and a handle that can
 * be passed to XENPF_DEL_MEMTYPE to accurately tear down the new setting.
 * (x86-specific).
 */
#define XENPF_add_memtype         31
struct xenpf_add_memtype {
	/* IN variables. */
	xen_pfn_t mfn;
	uint64_t nr_mfns;
	uint32_t type;
	/* OUT variables. */
	uint32_t handle;
	uint32_t reg;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_add_memtype_t);

/*
 * Tear down an existing memory-range type. If @handle is remembered then it
 * should be passed in to accurately tear down the correct setting (in case
 * of overlapping memory regions with differing types). If it is not known
 * then @handle should be set to zero. In all cases @reg must be set.
 * (x86-specific).
 */
#define XENPF_del_memtype         32
struct xenpf_del_memtype {
	/* IN variables. */
	uint32_t handle;
	uint32_t reg;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_del_memtype_t);

/* Read current type of an MTRR (x86-specific). */
#define XENPF_read_memtype        33
struct xenpf_read_memtype {
	/* IN variables. */
	uint32_t reg;
	/* OUT variables. */
	xen_pfn_t mfn;
	uint64_t nr_mfns;
	uint32_t type;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_read_memtype_t);

#define XENPF_microcode_update    35
struct xenpf_microcode_update {
	/* IN variables. */
	GUEST_HANDLE(void) data;          /* Pointer to microcode data */
	uint32_t length;                  /* Length of microcode data. */
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_microcode_update_t);

#define XENPF_platform_quirk      39
#define QUIRK_NOIRQBALANCING      1 /* Do not restrict IO-APIC RTE targets */
#define QUIRK_IOAPIC_BAD_REGSEL   2 /* IO-APIC REGSEL forgets its value    */
#define QUIRK_IOAPIC_GOOD_REGSEL  3 /* IO-APIC REGSEL behaves properly     */
struct xenpf_platform_quirk {
	/* IN variables. */
	uint32_t quirk_id;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_platform_quirk_t);

#define XENPF_firmware_info       50
#define XEN_FW_DISK_INFO          1 /* from int 13 AH=08/41/48 */
#define XEN_FW_DISK_MBR_SIGNATURE 2 /* from MBR offset 0x1b8 */
#define XEN_FW_VBEDDC_INFO        3 /* from int 10 AX=4f15 */
#define XEN_FW_KBD_SHIFT_FLAGS    5 /* Int16, Fn02: Get keyboard shift flags. */
struct xenpf_firmware_info {
	/* IN variables. */
	uint32_t type;
	uint32_t index;
	/* OUT variables. */
	union {
		struct {
			/* Int13, Fn48: Check Extensions Present. */
			uint8_t device;                   /* %dl: bios device number */
			uint8_t version;                  /* %ah: major version      */
			uint16_t interface_support;       /* %cx: support bitmap     */
			/* Int13, Fn08: Legacy Get Device Parameters. */
			uint16_t legacy_max_cylinder;     /* %cl[7:6]:%ch: max cyl # */
			uint8_t legacy_max_head;          /* %dh: max head #         */
			uint8_t legacy_sectors_per_track; /* %cl[5:0]: max sector #  */
			/* Int13, Fn41: Get Device Parameters (as filled into %ds:%esi). */
			/* NB. First uint16_t of buffer must be set to buffer size.      */
			GUEST_HANDLE(void) edd_params;
		} disk_info; /* XEN_FW_DISK_INFO */
		struct {
			uint8_t device;                   /* bios device number  */
			uint32_t mbr_signature;           /* offset 0x1b8 in mbr */
		} disk_mbr_signature; /* XEN_FW_DISK_MBR_SIGNATURE */
		struct {
			/* Int10, AX=4F15: Get EDID info. */
			uint8_t capabilities;
			uint8_t edid_transfer_time;
			/* must refer to 128-byte buffer */
			GUEST_HANDLE(uchar) edid;
		} vbeddc_info; /* XEN_FW_VBEDDC_INFO */

		uint8_t kbd_shift_flags; /* XEN_FW_KBD_SHIFT_FLAGS */
	} u;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_firmware_info_t);

#define XENPF_enter_acpi_sleep    51
struct xenpf_enter_acpi_sleep {
	/* IN variables */
	uint16_t pm1a_cnt_val;      /* PM1a control value. */
	uint16_t pm1b_cnt_val;      /* PM1b control value. */
	uint32_t sleep_state;       /* Which state to enter (Sn). */
	uint32_t flags;             /* Must be zero. */
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_enter_acpi_sleep_t);

#define XENPF_change_freq         52
struct xenpf_change_freq {
	/* IN variables */
	uint32_t flags; /* Must be zero. */
	uint32_t cpu;   /* Physical cpu. */
	uint64_t freq;  /* New frequency (Hz). */
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_change_freq_t);

/*
 * Get idle times (nanoseconds since boot) for physical CPUs specified in the
 * @cpumap_bitmap with range [0..@cpumap_nr_cpus-1]. The @idletime array is
 * indexed by CPU number; only entries with the corresponding @cpumap_bitmap
 * bit set are written to. On return, @cpumap_bitmap is modified so that any
 * non-existent CPUs are cleared. Such CPUs have their @idletime array entry
 * cleared.
 */
#define XENPF_getidletime         53
struct xenpf_getidletime {
	/* IN/OUT variables */
	/* IN: CPUs to interrogate; OUT: subset of IN which are present */
	GUEST_HANDLE(uchar) cpumap_bitmap;
	/* IN variables */
	/* Size of cpumap bitmap. */
	uint32_t cpumap_nr_cpus;
	/* Must be indexable for every cpu in cpumap_bitmap. */
	GUEST_HANDLE(uint64_t) idletime;
	/* OUT variables */
	/* System time when the idletime snapshots were taken. */
	uint64_t now;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_getidletime_t);

#define XENPF_set_processor_pminfo      54

/* ability bits */
#define XEN_PROCESSOR_PM_CX	1
#define XEN_PROCESSOR_PM_PX	2
#define XEN_PROCESSOR_PM_TX	4

/* cmd type */
#define XEN_PM_CX   0
#define XEN_PM_PX   1
#define XEN_PM_TX   2
#define XEN_PM_PDC  3
/* Px sub info type */
#define XEN_PX_PCT   1
#define XEN_PX_PSS   2
#define XEN_PX_PPC   4
#define XEN_PX_PSD   8

struct xen_power_register {
	uint32_t     space_id;
	uint32_t     bit_width;
	uint32_t     bit_offset;
	uint32_t     access_size;
	uint64_t     address;
};

struct xen_processor_csd {
	uint32_t    domain;      /* domain number of one dependent group */
	uint32_t    coord_type;  /* coordination type */
	uint32_t    num;         /* number of processors in same domain */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_processor_csd);

struct xen_processor_cx {
	struct xen_power_register  reg; /* GAS for Cx trigger register */
	uint8_t     type;     /* cstate value, c0: 0, c1: 1, ... */
	uint32_t    latency;  /* worst latency (ms) to enter/exit this cstate */
	uint32_t    power;    /* average power consumption(mW) */
	uint32_t    dpcnt;    /* number of dependency entries */
	GUEST_HANDLE(xen_processor_csd) dp; /* NULL if no dependency */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_processor_cx);

struct xen_processor_flags {
	uint32_t bm_control:1;
	uint32_t bm_check:1;
	uint32_t has_cst:1;
	uint32_t power_setup_done:1;
	uint32_t bm_rld_set:1;
};

struct xen_processor_power {
	uint32_t count;  /* number of C state entries in array below */
	struct xen_processor_flags flags;  /* global flags of this processor */
	GUEST_HANDLE(xen_processor_cx) states; /* supported c states */
};

struct xen_pct_register {
	uint8_t  descriptor;
	uint16_t length;
	uint8_t  space_id;
	uint8_t  bit_width;
	uint8_t  bit_offset;
	uint8_t  reserved;
	uint64_t address;
};

struct xen_processor_px {
	uint64_t core_frequency; /* megahertz */
	uint64_t power;      /* milliWatts */
	uint64_t transition_latency; /* microseconds */
	uint64_t bus_master_latency; /* microseconds */
	uint64_t control;        /* control value */
	uint64_t status;     /* success indicator */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_processor_px);

struct xen_psd_package {
	uint64_t num_entries;
	uint64_t revision;
	uint64_t domain;
	uint64_t coord_type;
	uint64_t num_processors;
};

struct xen_processor_performance {
	uint32_t flags;     /* flag for Px sub info type */
	uint32_t platform_limit;  /* Platform limitation on freq usage */
	struct xen_pct_register control_register;
	struct xen_pct_register status_register;
	uint32_t state_count;     /* total available performance states */
	GUEST_HANDLE(xen_processor_px) states;
	struct xen_psd_package domain_info;
	uint32_t shared_type;     /* coordination type of this processor */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_processor_performance);

struct xenpf_set_processor_pminfo {
	/* IN variables */
	uint32_t id;    /* ACPI CPU ID */
	uint32_t type;  /* {XEN_PM_CX, XEN_PM_PX} */
	union {
		struct xen_processor_power          power;/* Cx: _CST/_CSD */
		struct xen_processor_performance    perf; /* Px: _PPC/_PCT/_PSS/_PSD */
		GUEST_HANDLE(uint32_t)              pdc;
	};
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_set_processor_pminfo);

#define XENPF_get_cpuinfo 55
struct xenpf_pcpuinfo {
	/* IN */
	uint32_t xen_cpuid;
	/* OUT */
	/* The maxium cpu_id that is present */
	uint32_t max_present;
#define XEN_PCPU_FLAGS_ONLINE   1
	/* Correponding xen_cpuid is not present*/
#define XEN_PCPU_FLAGS_INVALID  2
	uint32_t flags;
	uint32_t apic_id;
	uint32_t acpi_id;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_pcpuinfo);

#define XENPF_cpu_online	56
#define XENPF_cpu_offline	57
struct xenpf_cpu_ol {
	uint32_t cpuid;
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_cpu_ol);

struct xen_platform_op {
	uint32_t cmd;
	uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
	union {
		struct xenpf_settime           settime;
		struct xenpf_add_memtype       add_memtype;
		struct xenpf_del_memtype       del_memtype;
		struct xenpf_read_memtype      read_memtype;
		struct xenpf_microcode_update  microcode;
		struct xenpf_platform_quirk    platform_quirk;
		struct xenpf_firmware_info     firmware_info;
		struct xenpf_enter_acpi_sleep  enter_acpi_sleep;
		struct xenpf_change_freq       change_freq;
		struct xenpf_getidletime       getidletime;
		struct xenpf_set_processor_pminfo set_pminfo;
		struct xenpf_pcpuinfo          pcpu_info;
		struct xenpf_cpu_ol            cpu_ol;
		uint8_t                        pad[128];
	} u;
};
DEFINE_GUEST_HANDLE_STRUCT(xen_platform_op_t);

#endif /* __XEN_PUBLIC_PLATFORM_H__ */