summaryrefslogtreecommitdiffstats
path: root/include/xen/trace.h
blob: a00c017335b47d4af674ec39675aeb9430fb3f4b (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
/******************************************************************************
 * include/public/trace.h
 *
 * 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.
 *
 * Mark Williamson, (C) 2004 Intel Research Cambridge
 * Copyright (C) 2005 Bin Ren
 */

#ifndef __XEN_PUBLIC_TRACE_H__
#define __XEN_PUBLIC_TRACE_H__

#define TRACE_EXTRA_MAX    7
#define TRACE_EXTRA_SHIFT 28

/* Trace classes */
#define TRC_CLS_SHIFT 16
#define TRC_GEN      0x0001f000    /* General trace            */
#define TRC_SCHED    0x0002f000    /* Xen Scheduler trace      */
#define TRC_DOM0OP   0x0004f000    /* Xen DOM0 operation trace */
#define TRC_HVM      0x0008f000    /* Xen HVM trace            */
#define TRC_MEM      0x0010f000    /* Xen memory trace         */
#define TRC_PV       0x0020f000    /* Xen PV traces            */
#define TRC_SHADOW   0x0040f000    /* Xen shadow tracing       */
#define TRC_HW       0x0080f000    /* Xen hardware-related traces */
#define TRC_GUEST    0x0800f000    /* Guest-generated traces   */
#define TRC_ALL      0x0ffff000
#define TRC_HD_TO_EVENT(x) ((x)&0x0fffffff)
#define TRC_HD_CYCLE_FLAG (1UL<<31)
#define TRC_HD_INCLUDES_CYCLE_COUNT(x) ( !!( (x) & TRC_HD_CYCLE_FLAG ) )
#define TRC_HD_EXTRA(x)    (((x)>>TRACE_EXTRA_SHIFT)&TRACE_EXTRA_MAX)

/* Trace subclasses */
#define TRC_SUBCLS_SHIFT 12

/* trace subclasses for SVM */
#define TRC_HVM_ENTRYEXIT   0x00081000   /* VMENTRY and #VMEXIT       */
#define TRC_HVM_HANDLER     0x00082000   /* various HVM handlers      */
#define TRC_HVM_EMUL        0x00084000   /* emulated devices */

#define TRC_SCHED_MIN       0x00021000   /* Just runstate changes */
#define TRC_SCHED_CLASS     0x00022000   /* Scheduler-specific    */
#define TRC_SCHED_VERBOSE   0x00028000   /* More inclusive scheduling */

/*
 * The highest 3 bits of the last 12 bits of TRC_SCHED_CLASS above are
 * reserved for encoding what scheduler produced the information. The
 * actual event is encoded in the last 9 bits.
 *
 * This means we have 8 scheduling IDs available (which means at most 8
 * schedulers generating events) and, in each scheduler, up to 512
 * different events.
 */
#define TRC_SCHED_ID_BITS 3
#define TRC_SCHED_ID_SHIFT (TRC_SUBCLS_SHIFT - TRC_SCHED_ID_BITS)
#define TRC_SCHED_ID_MASK (((1UL<<TRC_SCHED_ID_BITS) - 1) << TRC_SCHED_ID_SHIFT)
#define TRC_SCHED_EVT_MASK (~(TRC_SCHED_ID_MASK))

/* Per-scheduler IDs, to identify scheduler specific events */
#define TRC_SCHED_CSCHED   0
#define TRC_SCHED_CSCHED2  1
/* #define XEN_SCHEDULER_SEDF 2 (Removed) */
#define TRC_SCHED_ARINC653 3
#define TRC_SCHED_RTDS     4
#define TRC_SCHED_SNULL    5

/* Per-scheduler tracing */
#define TRC_SCHED_CLASS_EVT(_c, _e) \
  ( ( TRC_SCHED_CLASS | \
      ((TRC_SCHED_##_c << TRC_SCHED_ID_SHIFT) & TRC_SCHED_ID_MASK) ) + \
    (_e & TRC_SCHED_EVT_MASK) )

/* Trace classes for DOM0 operations */
#define TRC_DOM0_DOMOPS     0x00041000   /* Domains manipulations */

/* Trace classes for Hardware */
#define TRC_HW_PM           0x00801000   /* Power management traces */
#define TRC_HW_IRQ          0x00802000   /* Traces relating to the handling of IRQs */

/* Trace events per class */
#define TRC_LOST_RECORDS        (TRC_GEN + 1)
#define TRC_TRACE_WRAP_BUFFER  (TRC_GEN + 2)
#define TRC_TRACE_CPU_CHANGE    (TRC_GEN + 3)

#define TRC_SCHED_RUNSTATE_CHANGE   (TRC_SCHED_MIN + 1)
#define TRC_SCHED_CONTINUE_RUNNING  (TRC_SCHED_MIN + 2)
#define TRC_SCHED_DOM_ADD        (TRC_SCHED_VERBOSE +  1)
#define TRC_SCHED_DOM_REM        (TRC_SCHED_VERBOSE +  2)
#define TRC_SCHED_SLEEP          (TRC_SCHED_VERBOSE +  3)
#define TRC_SCHED_WAKE           (TRC_SCHED_VERBOSE +  4)
#define TRC_SCHED_YIELD          (TRC_SCHED_VERBOSE +  5)
#define TRC_SCHED_BLOCK          (TRC_SCHED_VERBOSE +  6)
#define TRC_SCHED_SHUTDOWN       (TRC_SCHED_VERBOSE +  7)
#define TRC_SCHED_CTL            (TRC_SCHED_VERBOSE +  8)
#define TRC_SCHED_ADJDOM         (TRC_SCHED_VERBOSE +  9)
#define TRC_SCHED_SWITCH         (TRC_SCHED_VERBOSE + 10)
#define TRC_SCHED_S_TIMER_FN     (TRC_SCHED_VERBOSE + 11)
#define TRC_SCHED_T_TIMER_FN     (TRC_SCHED_VERBOSE + 12)
#define TRC_SCHED_DOM_TIMER_FN   (TRC_SCHED_VERBOSE + 13)
#define TRC_SCHED_SWITCH_INFPREV (TRC_SCHED_VERBOSE + 14)
#define TRC_SCHED_SWITCH_INFNEXT (TRC_SCHED_VERBOSE + 15)
#define TRC_SCHED_SHUTDOWN_CODE  (TRC_SCHED_VERBOSE + 16)
#define TRC_SCHED_SWITCH_INFCONT (TRC_SCHED_VERBOSE + 17)

#define TRC_DOM0_DOM_ADD         (TRC_DOM0_DOMOPS + 1)
#define TRC_DOM0_DOM_REM         (TRC_DOM0_DOMOPS + 2)

#define TRC_MEM_PAGE_GRANT_MAP      (TRC_MEM + 1)
#define TRC_MEM_PAGE_GRANT_UNMAP    (TRC_MEM + 2)
#define TRC_MEM_PAGE_GRANT_TRANSFER (TRC_MEM + 3)
#define TRC_MEM_SET_P2M_ENTRY       (TRC_MEM + 4)
#define TRC_MEM_DECREASE_RESERVATION (TRC_MEM + 5)
#define TRC_MEM_POD_POPULATE        (TRC_MEM + 16)
#define TRC_MEM_POD_ZERO_RECLAIM    (TRC_MEM + 17)
#define TRC_MEM_POD_SUPERPAGE_SPLINTER (TRC_MEM + 18)

#define TRC_PV_ENTRY   0x00201000 /* Hypervisor entry points for PV guests. */
#define TRC_PV_SUBCALL 0x00202000 /* Sub-call in a multicall hypercall */

#define TRC_PV_HYPERCALL             (TRC_PV_ENTRY +  1)
#define TRC_PV_TRAP                  (TRC_PV_ENTRY +  3)
#define TRC_PV_PAGE_FAULT            (TRC_PV_ENTRY +  4)
#define TRC_PV_FORCED_INVALID_OP     (TRC_PV_ENTRY +  5)
#define TRC_PV_EMULATE_PRIVOP        (TRC_PV_ENTRY +  6)
#define TRC_PV_EMULATE_4GB           (TRC_PV_ENTRY +  7)
#define TRC_PV_MATH_STATE_RESTORE    (TRC_PV_ENTRY +  8)
#define TRC_PV_PAGING_FIXUP          (TRC_PV_ENTRY +  9)
#define TRC_PV_GDT_LDT_MAPPING_FAULT (TRC_PV_ENTRY + 10)
#define TRC_PV_PTWR_EMULATION        (TRC_PV_ENTRY + 11)
#define TRC_PV_PTWR_EMULATION_PAE    (TRC_PV_ENTRY + 12)
#define TRC_PV_HYPERCALL_V2          (TRC_PV_ENTRY + 13)
#define TRC_PV_HYPERCALL_SUBCALL     (TRC_PV_SUBCALL + 14)

/*
 * TRC_PV_HYPERCALL_V2 format
 *
 * Only some of the hypercall argument are recorded. Bit fields A0 to
 * A5 in the first extra word are set if the argument is present and
 * the arguments themselves are packed sequentially in the following
 * words.
 *
 * The TRC_64_FLAG bit is not set for these events (even if there are
 * 64-bit arguments in the record).
 *
 * Word
 * 0    bit 31 30|29 28|27 26|25 24|23 22|21 20|19 ... 0
 *          A5   |A4   |A3   |A2   |A1   |A0   |Hypercall op
 * 1    First 32 bit (or low word of first 64 bit) arg in record
 * 2    Second 32 bit (or high word of first 64 bit) arg in record
 * ...
 *
 * A0-A5 bitfield values:
 *
 *   00b  Argument not present
 *   01b  32-bit argument present
 *   10b  64-bit argument present
 *   11b  Reserved
 */
#define TRC_PV_HYPERCALL_V2_ARG_32(i) (0x1 << (20 + 2*(i)))
#define TRC_PV_HYPERCALL_V2_ARG_64(i) (0x2 << (20 + 2*(i)))
#define TRC_PV_HYPERCALL_V2_ARG_MASK  (0xfff00000)

#define TRC_SHADOW_NOT_SHADOW                 (TRC_SHADOW +  1)
#define TRC_SHADOW_FAST_PROPAGATE             (TRC_SHADOW +  2)
#define TRC_SHADOW_FAST_MMIO                  (TRC_SHADOW +  3)
#define TRC_SHADOW_FALSE_FAST_PATH            (TRC_SHADOW +  4)
#define TRC_SHADOW_MMIO                       (TRC_SHADOW +  5)
#define TRC_SHADOW_FIXUP                      (TRC_SHADOW +  6)
#define TRC_SHADOW_DOMF_DYING                 (TRC_SHADOW +  7)
#define TRC_SHADOW_EMULATE                    (TRC_SHADOW +  8)
#define TRC_SHADOW_EMULATE_UNSHADOW_USER      (TRC_SHADOW +  9)
#define TRC_SHADOW_EMULATE_UNSHADOW_EVTINJ    (TRC_SHADOW + 10)
#define TRC_SHADOW_EMULATE_UNSHADOW_UNHANDLED (TRC_SHADOW + 11)
#define TRC_SHADOW_WRMAP_BF                   (TRC_SHADOW + 12)
#define TRC_SHADOW_PREALLOC_UNPIN             (TRC_SHADOW + 13)
#define TRC_SHADOW_RESYNC_FULL                (TRC_SHADOW + 14)
#define TRC_SHADOW_RESYNC_ONLY                (TRC_SHADOW + 15)

/* trace events per subclass */
#define TRC_HVM_NESTEDFLAG      (0x400)
#define TRC_HVM_VMENTRY         (TRC_HVM_ENTRYEXIT + 0x01)
#define TRC_HVM_VMEXIT          (TRC_HVM_ENTRYEXIT + 0x02)
#define TRC_HVM_VMEXIT64        (TRC_HVM_ENTRYEXIT + TRC_64_FLAG + 0x02)
#define TRC_HVM_PF_XEN          (TRC_HVM_HANDLER + 0x01)
#define TRC_HVM_PF_XEN64        (TRC_HVM_HANDLER + TRC_64_FLAG + 0x01)
#define TRC_HVM_PF_INJECT       (TRC_HVM_HANDLER + 0x02)
#define TRC_HVM_PF_INJECT64     (TRC_HVM_HANDLER + TRC_64_FLAG + 0x02)
#define TRC_HVM_INJ_EXC         (TRC_HVM_HANDLER + 0x03)
#define TRC_HVM_INJ_VIRQ        (TRC_HVM_HANDLER + 0x04)
#define TRC_HVM_REINJ_VIRQ      (TRC_HVM_HANDLER + 0x05)
#define TRC_HVM_IO_READ         (TRC_HVM_HANDLER + 0x06)
#define TRC_HVM_IO_WRITE        (TRC_HVM_HANDLER + 0x07)
#define TRC_HVM_CR_READ         (TRC_HVM_HANDLER + 0x08)
#define TRC_HVM_CR_READ64       (TRC_HVM_HANDLER + TRC_64_FLAG + 0x08)
#define TRC_HVM_CR_WRITE        (TRC_HVM_HANDLER + 0x09)
#define TRC_HVM_CR_WRITE64      (TRC_HVM_HANDLER + TRC_64_FLAG + 0x09)
#define TRC_HVM_DR_READ         (TRC_HVM_HANDLER + 0x0A)
#define TRC_HVM_DR_WRITE        (TRC_HVM_HANDLER + 0x0B)
#define TRC_HVM_MSR_READ        (TRC_HVM_HANDLER + 0x0C)
#define TRC_HVM_MSR_WRITE       (TRC_HVM_HANDLER + 0x0D)
#define TRC_HVM_CPUID           (TRC_HVM_HANDLER + 0x0E)
#define TRC_HVM_INTR            (TRC_HVM_HANDLER + 0x0F)
#define TRC_HVM_NMI             (TRC_HVM_HANDLER + 0x10)
#define TRC_HVM_SMI             (TRC_HVM_HANDLER + 0x11)
#define TRC_HVM_VMMCALL         (TRC_HVM_HANDLER + 0x12)
#define TRC_HVM_HLT             (TRC_HVM_HANDLER + 0x13)
#define TRC_HVM_INVLPG          (TRC_HVM_HANDLER + 0x14)
#define TRC_HVM_INVLPG64        (TRC_HVM_HANDLER + TRC_64_FLAG + 0x14)
#define TRC_HVM_MCE             (TRC_HVM_HANDLER + 0x15)
#define TRC_HVM_IOPORT_READ     (TRC_HVM_HANDLER + 0x16)
#define TRC_HVM_IOMEM_READ      (TRC_HVM_HANDLER + 0x17)
#define TRC_HVM_CLTS            (TRC_HVM_HANDLER + 0x18)
#define TRC_HVM_LMSW            (TRC_HVM_HANDLER + 0x19)
#define TRC_HVM_LMSW64          (TRC_HVM_HANDLER + TRC_64_FLAG + 0x19)
#define TRC_HVM_RDTSC           (TRC_HVM_HANDLER + 0x1a)
#define TRC_HVM_INTR_WINDOW     (TRC_HVM_HANDLER + 0x20)
#define TRC_HVM_NPF             (TRC_HVM_HANDLER + 0x21)
#define TRC_HVM_REALMODE_EMULATE (TRC_HVM_HANDLER + 0x22)
#define TRC_HVM_TRAP             (TRC_HVM_HANDLER + 0x23)
#define TRC_HVM_TRAP_DEBUG       (TRC_HVM_HANDLER + 0x24)
#define TRC_HVM_VLAPIC           (TRC_HVM_HANDLER + 0x25)

#define TRC_HVM_IOPORT_WRITE    (TRC_HVM_HANDLER + 0x216)
#define TRC_HVM_IOMEM_WRITE     (TRC_HVM_HANDLER + 0x217)

/* Trace events for emulated devices */
#define TRC_HVM_EMUL_HPET_START_TIMER  (TRC_HVM_EMUL + 0x1)
#define TRC_HVM_EMUL_PIT_START_TIMER   (TRC_HVM_EMUL + 0x2)
#define TRC_HVM_EMUL_RTC_START_TIMER   (TRC_HVM_EMUL + 0x3)
#define TRC_HVM_EMUL_LAPIC_START_TIMER (TRC_HVM_EMUL + 0x4)
#define TRC_HVM_EMUL_HPET_STOP_TIMER   (TRC_HVM_EMUL + 0x5)
#define TRC_HVM_EMUL_PIT_STOP_TIMER    (TRC_HVM_EMUL + 0x6)
#define TRC_HVM_EMUL_RTC_STOP_TIMER    (TRC_HVM_EMUL + 0x7)
#define TRC_HVM_EMUL_LAPIC_STOP_TIMER  (TRC_HVM_EMUL + 0x8)
#define TRC_HVM_EMUL_PIT_TIMER_CB      (TRC_HVM_EMUL + 0x9)
#define TRC_HVM_EMUL_LAPIC_TIMER_CB    (TRC_HVM_EMUL + 0xA)
#define TRC_HVM_EMUL_PIC_INT_OUTPUT    (TRC_HVM_EMUL + 0xB)
#define TRC_HVM_EMUL_PIC_KICK          (TRC_HVM_EMUL + 0xC)
#define TRC_HVM_EMUL_PIC_INTACK        (TRC_HVM_EMUL + 0xD)
#define TRC_HVM_EMUL_PIC_POSEDGE       (TRC_HVM_EMUL + 0xE)
#define TRC_HVM_EMUL_PIC_NEGEDGE       (TRC_HVM_EMUL + 0xF)
#define TRC_HVM_EMUL_PIC_PEND_IRQ_CALL (TRC_HVM_EMUL + 0x10)
#define TRC_HVM_EMUL_LAPIC_PIC_INTR    (TRC_HVM_EMUL + 0x11)

/* trace events for per class */
#define TRC_PM_FREQ_CHANGE      (TRC_HW_PM + 0x01)
#define TRC_PM_IDLE_ENTRY       (TRC_HW_PM + 0x02)
#define TRC_PM_IDLE_EXIT        (TRC_HW_PM + 0x03)

/* Trace events for IRQs */
#define TRC_HW_IRQ_MOVE_CLEANUP_DELAY (TRC_HW_IRQ + 0x1)
#define TRC_HW_IRQ_MOVE_CLEANUP       (TRC_HW_IRQ + 0x2)
#define TRC_HW_IRQ_BIND_VECTOR        (TRC_HW_IRQ + 0x3)
#define TRC_HW_IRQ_CLEAR_VECTOR       (TRC_HW_IRQ + 0x4)
#define TRC_HW_IRQ_MOVE_FINISH        (TRC_HW_IRQ + 0x5)
#define TRC_HW_IRQ_ASSIGN_VECTOR      (TRC_HW_IRQ + 0x6)
#define TRC_HW_IRQ_UNMAPPED_VECTOR    (TRC_HW_IRQ + 0x7)
#define TRC_HW_IRQ_HANDLED            (TRC_HW_IRQ + 0x8)

/*
 * Event Flags
 *
 * Some events (e.g, TRC_PV_TRAP and TRC_HVM_IOMEM_READ) have multiple
 * record formats.  These event flags distinguish between the
 * different formats.
 */
#define TRC_64_FLAG 0x100 /* Addresses are 64 bits (instead of 32 bits) */

/* This structure represents a single trace buffer record. */
struct t_rec {
    uint32_t event:28;
    uint32_t extra_u32:3;         /* # entries in trailing extra_u32[] array */
    uint32_t cycles_included:1;   /* u.cycles or u.no_cycles? */
    union {
        struct {
            uint32_t cycles_lo, cycles_hi; /* cycle counter timestamp */
            uint32_t extra_u32[7];         /* event data items */
        } cycles;
        struct {
            uint32_t extra_u32[7];         /* event data items */
        } nocycles;
    } u;
};

/*
 * This structure contains the metadata for a single trace buffer.  The head
 * field, indexes into an array of struct t_rec's.
 */
struct t_buf {
    /* Assume the data buffer size is X.  X is generally not a power of 2.
     * CONS and PROD are incremented modulo (2*X):
     *     0 <= cons < 2*X
     *     0 <= prod < 2*X
     * This is done because addition modulo X breaks at 2^32 when X is not a
     * power of 2:
     *     (((2^32 - 1) % X) + 1) % X != (2^32) % X
     */
    uint32_t cons;   /* Offset of next item to be consumed by control tools. */
    uint32_t prod;   /* Offset of next item to be produced by Xen.           */
    /*  Records follow immediately after the meta-data header.    */
};

/* Structure used to pass MFNs to the trace buffers back to trace consumers.
 * Offset is an offset into the mapped structure where the mfn list will be held.
 * MFNs will be at ((unsigned long *)(t_info))+(t_info->cpu_offset[cpu]).
 */
struct t_info {
    uint16_t tbuf_size; /* Size in pages of each trace buffer */
    uint16_t mfn_offset[];  /* Offset within t_info structure of the page list per cpu */
    /* MFN lists immediately after the header */
};

#endif /* __XEN_PUBLIC_TRACE_H__ */

/*
 * Local variables:
 * mode: C
 * c-file-style: "BSD"
 * c-basic-offset: 4
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 */