summaryrefslogtreecommitdiffstats
path: root/drivers/virt/vboxguest/vmmdev.h
blob: 5e2ae978935de3630cfda2184534bb838620ea6f (plain)
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
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
/*
 * Virtual Device for Guest <-> VMM/Host communication interface
 *
 * Copyright (C) 2006-2016 Oracle Corporation
 */

#ifndef __VBOX_VMMDEV_H__
#define __VBOX_VMMDEV_H__

#include <asm/bitsperlong.h>
#include <linux/sizes.h>
#include <linux/types.h>
#include <linux/vbox_vmmdev_types.h>

/* Port for generic request interface (relative offset). */
#define VMMDEV_PORT_OFF_REQUEST                             0

/** Layout of VMMDEV RAM region that contains information for guest. */
struct vmmdev_memory {
	/** The size of this structure. */
	u32 size;
	/** The structure version. (VMMDEV_MEMORY_VERSION) */
	u32 version;

	union {
		struct {
			/** Flag telling that VMMDev has events pending. */
			u8 have_events;
			/** Explicit padding, MBZ. */
			u8 padding[3];
		} V1_04;

		struct {
			/** Pending events flags, set by host. */
			u32 host_events;
			/** Mask of events the guest wants, set by guest. */
			u32 guest_event_mask;
		} V1_03;
	} V;

	/* struct vbva_memory, not used */
};
VMMDEV_ASSERT_SIZE(vmmdev_memory, 8 + 8);

/** Version of vmmdev_memory structure (vmmdev_memory::version). */
#define VMMDEV_MEMORY_VERSION   (1)

/* Host mouse capabilities has been changed. */
#define VMMDEV_EVENT_MOUSE_CAPABILITIES_CHANGED             BIT(0)
/* HGCM event. */
#define VMMDEV_EVENT_HGCM                                   BIT(1)
/* A display change request has been issued. */
#define VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST                 BIT(2)
/* Credentials are available for judgement. */
#define VMMDEV_EVENT_JUDGE_CREDENTIALS                      BIT(3)
/* The guest has been restored. */
#define VMMDEV_EVENT_RESTORED                               BIT(4)
/* Seamless mode state changed. */
#define VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST           BIT(5)
/* Memory balloon size changed. */
#define VMMDEV_EVENT_BALLOON_CHANGE_REQUEST                 BIT(6)
/* Statistics interval changed. */
#define VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST     BIT(7)
/* VRDP status changed. */
#define VMMDEV_EVENT_VRDP                                   BIT(8)
/* New mouse position data available. */
#define VMMDEV_EVENT_MOUSE_POSITION_CHANGED                 BIT(9)
/* CPU hotplug event occurred. */
#define VMMDEV_EVENT_CPU_HOTPLUG                            BIT(10)
/* The mask of valid events, for sanity checking. */
#define VMMDEV_EVENT_VALID_EVENT_MASK                       0x000007ffU

/*
 * Additions are allowed to work only if additions_major == vmmdev_current &&
 * additions_minor <= vmmdev_current. Additions version is reported to host
 * (VMMDev) by VMMDEVREQ_REPORT_GUEST_INFO.
 */
#define VMMDEV_VERSION                      0x00010004
#define VMMDEV_VERSION_MAJOR                (VMMDEV_VERSION >> 16)
#define VMMDEV_VERSION_MINOR                (VMMDEV_VERSION & 0xffff)

/* Maximum request packet size. */
#define VMMDEV_MAX_VMMDEVREQ_SIZE           1048576

/* Version of vmmdev_request_header structure. */
#define VMMDEV_REQUEST_HEADER_VERSION       0x10001

/** struct vmmdev_request_header - Generic VMMDev request header. */
struct vmmdev_request_header {
	/** IN: Size of the structure in bytes (including body). */
	u32 size;
	/** IN: Version of the structure.  */
	u32 version;
	/** IN: Type of the request. */
	enum vmmdev_request_type request_type;
	/** OUT: Return code. */
	s32 rc;
	/** Reserved field no.1. MBZ. */
	u32 reserved1;
	/** Reserved field no.2. MBZ. */
	u32 reserved2;
};
VMMDEV_ASSERT_SIZE(vmmdev_request_header, 24);

/**
 * struct vmmdev_mouse_status - Mouse status request structure.
 *
 * Used by VMMDEVREQ_GET_MOUSE_STATUS and VMMDEVREQ_SET_MOUSE_STATUS.
 */
struct vmmdev_mouse_status {
	/** header */
	struct vmmdev_request_header header;
	/** Mouse feature mask. See VMMDEV_MOUSE_*. */
	u32 mouse_features;
	/** Mouse x position. */
	s32 pointer_pos_x;
	/** Mouse y position. */
	s32 pointer_pos_y;
};
VMMDEV_ASSERT_SIZE(vmmdev_mouse_status, 24 + 12);

/* The guest can (== wants to) handle absolute coordinates.  */
#define VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE                     BIT(0)
/*
 * The host can (== wants to) send absolute coordinates.
 * (Input not captured.)
 */
#define VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE                    BIT(1)
/*
 * The guest can *NOT* switch to software cursor and therefore depends on the
 * host cursor.
 *
 * When guest additions are installed and the host has promised to display the
 * cursor itself, the guest installs a hardware mouse driver. Don't ask the
 * guest to switch to a software cursor then.
 */
#define VMMDEV_MOUSE_GUEST_NEEDS_HOST_CURSOR                BIT(2)
/* The host does NOT provide support for drawing the cursor itself. */
#define VMMDEV_MOUSE_HOST_CANNOT_HWPOINTER                  BIT(3)
/* The guest can read VMMDev events to find out about pointer movement */
#define VMMDEV_MOUSE_NEW_PROTOCOL                           BIT(4)
/*
 * If the guest changes the status of the VMMDEV_MOUSE_GUEST_NEEDS_HOST_CURSOR
 * bit, the host will honour this.
 */
#define VMMDEV_MOUSE_HOST_RECHECKS_NEEDS_HOST_CURSOR        BIT(5)
/*
 * The host supplies an absolute pointing device.  The Guest Additions may
 * wish to use this to decide whether to install their own driver.
 */
#define VMMDEV_MOUSE_HOST_HAS_ABS_DEV                       BIT(6)

/* The minimum value our pointing device can return. */
#define VMMDEV_MOUSE_RANGE_MIN 0
/* The maximum value our pointing device can return. */
#define VMMDEV_MOUSE_RANGE_MAX 0xFFFF

/**
 * struct vmmdev_host_version - VirtualBox host version request structure.
 *
 * VBG uses this to detect the precense of new features in the interface.
 */
struct vmmdev_host_version {
	/** Header. */
	struct vmmdev_request_header header;
	/** Major version. */
	u16 major;
	/** Minor version. */
	u16 minor;
	/** Build number. */
	u32 build;
	/** SVN revision. */
	u32 revision;
	/** Feature mask. */
	u32 features;
};
VMMDEV_ASSERT_SIZE(vmmdev_host_version, 24 + 16);

/* Physical page lists are supported by HGCM. */
#define VMMDEV_HVF_HGCM_PHYS_PAGE_LIST  BIT(0)

/**
 * struct vmmdev_mask - Structure to set / clear bits in a mask used for
 * VMMDEVREQ_SET_GUEST_CAPABILITIES and VMMDEVREQ_CTL_GUEST_FILTER_MASK.
 */
struct vmmdev_mask {
	/** Header. */
	struct vmmdev_request_header header;
	/** Mask of bits to be set. */
	u32 or_mask;
	/** Mask of bits to be cleared. */
	u32 not_mask;
};
VMMDEV_ASSERT_SIZE(vmmdev_mask, 24 + 8);

/* The guest supports seamless display rendering. */
#define VMMDEV_GUEST_SUPPORTS_SEAMLESS                      BIT(0)
/* The guest supports mapping guest to host windows. */
#define VMMDEV_GUEST_SUPPORTS_GUEST_HOST_WINDOW_MAPPING     BIT(1)
/*
 * The guest graphical additions are active.
 * Used for fast activation and deactivation of certain graphical operations
 * (e.g. resizing & seamless). The legacy VMMDEVREQ_REPORT_GUEST_CAPABILITIES
 * request sets this automatically, but VMMDEVREQ_SET_GUEST_CAPABILITIES does
 * not.
 */
#define VMMDEV_GUEST_SUPPORTS_GRAPHICS                      BIT(2)

/** struct vmmdev_hypervisorinfo - Hypervisor info structure. */
struct vmmdev_hypervisorinfo {
	/** Header. */
	struct vmmdev_request_header header;
	/**
	 * Guest virtual address of proposed hypervisor start.
	 * Not used by VMMDEVREQ_GET_HYPERVISOR_INFO.
	 */
	u32 hypervisor_start;
	/** Hypervisor size in bytes. */
	u32 hypervisor_size;
};
VMMDEV_ASSERT_SIZE(vmmdev_hypervisorinfo, 24 + 8);

/** struct vmmdev_events - Pending events structure. */
struct vmmdev_events {
	/** Header. */
	struct vmmdev_request_header header;
	/** OUT: Pending event mask. */
	u32 events;
};
VMMDEV_ASSERT_SIZE(vmmdev_events, 24 + 4);

#define VMMDEV_OSTYPE_LINUX26		0x53000
#define VMMDEV_OSTYPE_X64		BIT(8)

/** struct vmmdev_guestinfo - Guest information report. */
struct vmmdev_guest_info {
	/** Header. */
	struct vmmdev_request_header header;
	/**
	 * The VMMDev interface version expected by additions.
	 * *Deprecated*, do not use anymore! Will be removed.
	 */
	u32 interface_version;
	/** Guest OS type. */
	u32 os_type;
};
VMMDEV_ASSERT_SIZE(vmmdev_guest_info, 24 + 8);

/** struct vmmdev_guestinfo2 - Guest information report, version 2. */
struct vmmdev_guest_info2 {
	/** Header. */
	struct vmmdev_request_header header;
	/** Major version. */
	u16 additions_major;
	/** Minor version. */
	u16 additions_minor;
	/** Build number. */
	u32 additions_build;
	/** SVN revision. */
	u32 additions_revision;
	/** Feature mask, currently unused. */
	u32 additions_features;
	/**
	 * The intentional meaning of this field was:
	 * Some additional information, for example 'Beta 1' or something like
	 * that.
	 *
	 * The way it was implemented was implemented: VBG_VERSION_STRING.
	 *
	 * This means the first three members are duplicated in this field (if
	 * the guest build config is sane). So, the user must check this and
	 * chop it off before usage. There is, because of the Main code's blind
	 * trust in the field's content, no way back.
	 */
	char name[128];
};
VMMDEV_ASSERT_SIZE(vmmdev_guest_info2, 24 + 144);

enum vmmdev_guest_facility_type {
	VBOXGUEST_FACILITY_TYPE_UNKNOWN          = 0,
	VBOXGUEST_FACILITY_TYPE_VBOXGUEST_DRIVER = 20,
	/* VBoxGINA / VBoxCredProv / pam_vbox. */
	VBOXGUEST_FACILITY_TYPE_AUTO_LOGON       = 90,
	VBOXGUEST_FACILITY_TYPE_VBOX_SERVICE     = 100,
	/* VBoxTray (Windows), VBoxClient (Linux, Unix). */
	VBOXGUEST_FACILITY_TYPE_VBOX_TRAY_CLIENT = 101,
	VBOXGUEST_FACILITY_TYPE_SEAMLESS         = 1000,
	VBOXGUEST_FACILITY_TYPE_GRAPHICS         = 1100,
	VBOXGUEST_FACILITY_TYPE_ALL              = 0x7ffffffe,
	/* Ensure the enum is a 32 bit data-type */
	VBOXGUEST_FACILITY_TYPE_SIZEHACK         = 0x7fffffff
};

enum vmmdev_guest_facility_status {
	VBOXGUEST_FACILITY_STATUS_INACTIVE    = 0,
	VBOXGUEST_FACILITY_STATUS_PAUSED      = 1,
	VBOXGUEST_FACILITY_STATUS_PRE_INIT    = 20,
	VBOXGUEST_FACILITY_STATUS_INIT        = 30,
	VBOXGUEST_FACILITY_STATUS_ACTIVE      = 50,
	VBOXGUEST_FACILITY_STATUS_TERMINATING = 100,
	VBOXGUEST_FACILITY_STATUS_TERMINATED  = 101,
	VBOXGUEST_FACILITY_STATUS_FAILED      = 800,
	VBOXGUEST_FACILITY_STATUS_UNKNOWN     = 999,
	/* Ensure the enum is a 32 bit data-type */
	VBOXGUEST_FACILITY_STATUS_SIZEHACK    = 0x7fffffff
};

/** struct vmmdev_guest_status - Guest Additions status structure. */
struct vmmdev_guest_status {
	/** Header. */
	struct vmmdev_request_header header;
	/** Facility the status is indicated for. */
	enum vmmdev_guest_facility_type facility;
	/** Current guest status. */
	enum vmmdev_guest_facility_status status;
	/** Flags, not used at the moment. */
	u32 flags;
};
VMMDEV_ASSERT_SIZE(vmmdev_guest_status, 24 + 12);

#define VMMDEV_MEMORY_BALLOON_CHUNK_SIZE             (1048576)
#define VMMDEV_MEMORY_BALLOON_CHUNK_PAGES            (1048576 / 4096)

/** struct vmmdev_memballoon_info - Memory-balloon info structure. */
struct vmmdev_memballoon_info {
	/** Header. */
	struct vmmdev_request_header header;
	/** Balloon size in megabytes. */
	u32 balloon_chunks;
	/** Guest ram size in megabytes. */
	u32 phys_mem_chunks;
	/**
	 * Setting this to VMMDEV_EVENT_BALLOON_CHANGE_REQUEST indicates that
	 * the request is a response to that event.
	 * (Don't confuse this with VMMDEVREQ_ACKNOWLEDGE_EVENTS.)
	 */
	u32 event_ack;
};
VMMDEV_ASSERT_SIZE(vmmdev_memballoon_info, 24 + 12);

/** struct vmmdev_memballoon_change - Change the size of the balloon. */
struct vmmdev_memballoon_change {
	/** Header. */
	struct vmmdev_request_header header;
	/** The number of pages in the array. */
	u32 pages;
	/** true = inflate, false = deflate.  */
	u32 inflate;
	/** Physical address (u64) of each page. */
	u64 phys_page[VMMDEV_MEMORY_BALLOON_CHUNK_PAGES];
};

/** struct vmmdev_write_core_dump - Write Core Dump request data. */
struct vmmdev_write_core_dump {
	/** Header. */
	struct vmmdev_request_header header;
	/** Flags (reserved, MBZ). */
	u32 flags;
};
VMMDEV_ASSERT_SIZE(vmmdev_write_core_dump, 24 + 4);

/** struct vmmdev_heartbeat - Heart beat check state structure. */
struct vmmdev_heartbeat {
	/** Header. */
	struct vmmdev_request_header header;
	/** OUT: Guest heartbeat interval in nanosec. */
	u64 interval_ns;
	/** Heartbeat check flag. */
	u8 enabled;
	/** Explicit padding, MBZ. */
	u8 padding[3];
} __packed;
VMMDEV_ASSERT_SIZE(vmmdev_heartbeat, 24 + 12);

#define VMMDEV_HGCM_REQ_DONE      BIT(0)
#define VMMDEV_HGCM_REQ_CANCELLED BIT(1)

/** struct vmmdev_hgcmreq_header - vmmdev HGCM requests header. */
struct vmmdev_hgcmreq_header {
	/** Request header. */
	struct vmmdev_request_header header;

	/** HGCM flags. */
	u32 flags;

	/** Result code. */
	s32 result;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcmreq_header, 24 + 8);

/** struct vmmdev_hgcm_connect - HGCM connect request structure. */
struct vmmdev_hgcm_connect {
	/** HGCM request header. */
	struct vmmdev_hgcmreq_header header;

	/** IN: Description of service to connect to. */
	struct vmmdev_hgcm_service_location loc;

	/** OUT: Client identifier assigned by local instance of HGCM. */
	u32 client_id;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_connect, 32 + 132 + 4);

/** struct vmmdev_hgcm_disconnect - HGCM disconnect request structure. */
struct vmmdev_hgcm_disconnect {
	/** HGCM request header. */
	struct vmmdev_hgcmreq_header header;

	/** IN: Client identifier. */
	u32 client_id;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_disconnect, 32 + 4);

#define VMMDEV_HGCM_MAX_PARMS 32

/** struct vmmdev_hgcm_call - HGCM call request structure. */
struct vmmdev_hgcm_call {
	/* request header */
	struct vmmdev_hgcmreq_header header;

	/** IN: Client identifier. */
	u32 client_id;
	/** IN: Service function number. */
	u32 function;
	/** IN: Number of parameters. */
	u32 parm_count;
	/** Parameters follow in form: HGCMFunctionParameter32|64 parms[X]; */
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_call, 32 + 12);

/**
 * struct vmmdev_hgcm_cancel2 - HGCM cancel request structure, version 2.
 *
 * After the request header.rc will be:
 *
 * VINF_SUCCESS when cancelled.
 * VERR_NOT_FOUND if the specified request cannot be found.
 * VERR_INVALID_PARAMETER if the address is invalid valid.
 */
struct vmmdev_hgcm_cancel2 {
	/** Header. */
	struct vmmdev_request_header header;
	/** The physical address of the request to cancel. */
	u32 phys_req_to_cancel;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_cancel2, 24 + 4);

#endif