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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
7 * Authors: Sanjay Lal <sanjayl@kymasys.com>
8 */
9
10#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
11#define _TRACE_KVM_H
12
13#include <linux/tracepoint.h>
14
15#undef TRACE_SYSTEM
16#define TRACE_SYSTEM kvm
17#define TRACE_INCLUDE_PATH .
18#define TRACE_INCLUDE_FILE trace
19
20/*
21 * arch/mips/kvm/mips.c
22 */
23extern bool kvm_trace_guest_mode_change;
24int kvm_guest_mode_change_trace_reg(void);
25void kvm_guest_mode_change_trace_unreg(void);
26
27/*
28 * Tracepoints for VM enters
29 */
30DECLARE_EVENT_CLASS(kvm_transition,
31 TP_PROTO(struct kvm_vcpu *vcpu),
32 TP_ARGS(vcpu),
33 TP_STRUCT__entry(
34 __field(unsigned long, pc)
35 ),
36
37 TP_fast_assign(
38 __entry->pc = vcpu->arch.pc;
39 ),
40
41 TP_printk("PC: 0x%08lx",
42 __entry->pc)
43);
44
45DEFINE_EVENT(kvm_transition, kvm_enter,
46 TP_PROTO(struct kvm_vcpu *vcpu),
47 TP_ARGS(vcpu));
48
49DEFINE_EVENT(kvm_transition, kvm_reenter,
50 TP_PROTO(struct kvm_vcpu *vcpu),
51 TP_ARGS(vcpu));
52
53DEFINE_EVENT(kvm_transition, kvm_out,
54 TP_PROTO(struct kvm_vcpu *vcpu),
55 TP_ARGS(vcpu));
56
57/* The first 32 exit reasons correspond to Cause.ExcCode */
58#define KVM_TRACE_EXIT_INT 0
59#define KVM_TRACE_EXIT_TLBMOD 1
60#define KVM_TRACE_EXIT_TLBMISS_LD 2
61#define KVM_TRACE_EXIT_TLBMISS_ST 3
62#define KVM_TRACE_EXIT_ADDRERR_LD 4
63#define KVM_TRACE_EXIT_ADDRERR_ST 5
64#define KVM_TRACE_EXIT_SYSCALL 8
65#define KVM_TRACE_EXIT_BREAK_INST 9
66#define KVM_TRACE_EXIT_RESVD_INST 10
67#define KVM_TRACE_EXIT_COP_UNUSABLE 11
68#define KVM_TRACE_EXIT_TRAP_INST 13
69#define KVM_TRACE_EXIT_MSA_FPE 14
70#define KVM_TRACE_EXIT_FPE 15
71#define KVM_TRACE_EXIT_MSA_DISABLED 21
72#define KVM_TRACE_EXIT_GUEST_EXIT 27
73/* Further exit reasons */
74#define KVM_TRACE_EXIT_WAIT 32
75#define KVM_TRACE_EXIT_CACHE 33
76#define KVM_TRACE_EXIT_SIGNAL 34
77/* 32 exit reasons correspond to GuestCtl0.GExcCode (VZ) */
78#define KVM_TRACE_EXIT_GEXCCODE_BASE 64
79#define KVM_TRACE_EXIT_GPSI 64 /* 0 */
80#define KVM_TRACE_EXIT_GSFC 65 /* 1 */
81#define KVM_TRACE_EXIT_HC 66 /* 2 */
82#define KVM_TRACE_EXIT_GRR 67 /* 3 */
83#define KVM_TRACE_EXIT_GVA 72 /* 8 */
84#define KVM_TRACE_EXIT_GHFC 73 /* 9 */
85#define KVM_TRACE_EXIT_GPA 74 /* 10 */
86
87/* Tracepoints for VM exits */
88#define kvm_trace_symbol_exit_types \
89 { KVM_TRACE_EXIT_INT, "Interrupt" }, \
90 { KVM_TRACE_EXIT_TLBMOD, "TLB Mod" }, \
91 { KVM_TRACE_EXIT_TLBMISS_LD, "TLB Miss (LD)" }, \
92 { KVM_TRACE_EXIT_TLBMISS_ST, "TLB Miss (ST)" }, \
93 { KVM_TRACE_EXIT_ADDRERR_LD, "Address Error (LD)" }, \
94 { KVM_TRACE_EXIT_ADDRERR_ST, "Address Err (ST)" }, \
95 { KVM_TRACE_EXIT_SYSCALL, "System Call" }, \
96 { KVM_TRACE_EXIT_BREAK_INST, "Break Inst" }, \
97 { KVM_TRACE_EXIT_RESVD_INST, "Reserved Inst" }, \
98 { KVM_TRACE_EXIT_COP_UNUSABLE, "COP0/1 Unusable" }, \
99 { KVM_TRACE_EXIT_TRAP_INST, "Trap Inst" }, \
100 { KVM_TRACE_EXIT_MSA_FPE, "MSA FPE" }, \
101 { KVM_TRACE_EXIT_FPE, "FPE" }, \
102 { KVM_TRACE_EXIT_MSA_DISABLED, "MSA Disabled" }, \
103 { KVM_TRACE_EXIT_GUEST_EXIT, "Guest Exit" }, \
104 { KVM_TRACE_EXIT_WAIT, "WAIT" }, \
105 { KVM_TRACE_EXIT_CACHE, "CACHE" }, \
106 { KVM_TRACE_EXIT_SIGNAL, "Signal" }, \
107 { KVM_TRACE_EXIT_GPSI, "GPSI" }, \
108 { KVM_TRACE_EXIT_GSFC, "GSFC" }, \
109 { KVM_TRACE_EXIT_HC, "HC" }, \
110 { KVM_TRACE_EXIT_GRR, "GRR" }, \
111 { KVM_TRACE_EXIT_GVA, "GVA" }, \
112 { KVM_TRACE_EXIT_GHFC, "GHFC" }, \
113 { KVM_TRACE_EXIT_GPA, "GPA" }
114
115TRACE_EVENT(kvm_exit,
116 TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
117 TP_ARGS(vcpu, reason),
118 TP_STRUCT__entry(
119 __field(unsigned long, pc)
120 __field(unsigned int, reason)
121 ),
122
123 TP_fast_assign(
124 __entry->pc = vcpu->arch.pc;
125 __entry->reason = reason;
126 ),
127
128 TP_printk("[%s]PC: 0x%08lx",
129 __print_symbolic(__entry->reason,
130 kvm_trace_symbol_exit_types),
131 __entry->pc)
132);
133
134#define KVM_TRACE_MFC0 0
135#define KVM_TRACE_MTC0 1
136#define KVM_TRACE_DMFC0 2
137#define KVM_TRACE_DMTC0 3
138#define KVM_TRACE_RDHWR 4
139
140#define KVM_TRACE_HWR_COP0 0
141#define KVM_TRACE_HWR_HWR 1
142
143#define KVM_TRACE_COP0(REG, SEL) ((KVM_TRACE_HWR_COP0 << 8) | \
144 ((REG) << 3) | (SEL))
145#define KVM_TRACE_HWR(REG, SEL) ((KVM_TRACE_HWR_HWR << 8) | \
146 ((REG) << 3) | (SEL))
147
148#define kvm_trace_symbol_hwr_ops \
149 { KVM_TRACE_MFC0, "MFC0" }, \
150 { KVM_TRACE_MTC0, "MTC0" }, \
151 { KVM_TRACE_DMFC0, "DMFC0" }, \
152 { KVM_TRACE_DMTC0, "DMTC0" }, \
153 { KVM_TRACE_RDHWR, "RDHWR" }
154
155#define kvm_trace_symbol_hwr_cop \
156 { KVM_TRACE_HWR_COP0, "COP0" }, \
157 { KVM_TRACE_HWR_HWR, "HWR" }
158
159#define kvm_trace_symbol_hwr_regs \
160 { KVM_TRACE_COP0( 0, 0), "Index" }, \
161 { KVM_TRACE_COP0( 2, 0), "EntryLo0" }, \
162 { KVM_TRACE_COP0( 3, 0), "EntryLo1" }, \
163 { KVM_TRACE_COP0( 4, 0), "Context" }, \
164 { KVM_TRACE_COP0( 4, 2), "UserLocal" }, \
165 { KVM_TRACE_COP0( 5, 0), "PageMask" }, \
166 { KVM_TRACE_COP0( 6, 0), "Wired" }, \
167 { KVM_TRACE_COP0( 7, 0), "HWREna" }, \
168 { KVM_TRACE_COP0( 8, 0), "BadVAddr" }, \
169 { KVM_TRACE_COP0( 9, 0), "Count" }, \
170 { KVM_TRACE_COP0(10, 0), "EntryHi" }, \
171 { KVM_TRACE_COP0(11, 0), "Compare" }, \
172 { KVM_TRACE_COP0(12, 0), "Status" }, \
173 { KVM_TRACE_COP0(12, 1), "IntCtl" }, \
174 { KVM_TRACE_COP0(12, 2), "SRSCtl" }, \
175 { KVM_TRACE_COP0(13, 0), "Cause" }, \
176 { KVM_TRACE_COP0(14, 0), "EPC" }, \
177 { KVM_TRACE_COP0(15, 0), "PRId" }, \
178 { KVM_TRACE_COP0(15, 1), "EBase" }, \
179 { KVM_TRACE_COP0(16, 0), "Config" }, \
180 { KVM_TRACE_COP0(16, 1), "Config1" }, \
181 { KVM_TRACE_COP0(16, 2), "Config2" }, \
182 { KVM_TRACE_COP0(16, 3), "Config3" }, \
183 { KVM_TRACE_COP0(16, 4), "Config4" }, \
184 { KVM_TRACE_COP0(16, 5), "Config5" }, \
185 { KVM_TRACE_COP0(16, 7), "Config7" }, \
186 { KVM_TRACE_COP0(17, 1), "MAAR" }, \
187 { KVM_TRACE_COP0(17, 2), "MAARI" }, \
188 { KVM_TRACE_COP0(26, 0), "ECC" }, \
189 { KVM_TRACE_COP0(30, 0), "ErrorEPC" }, \
190 { KVM_TRACE_COP0(31, 2), "KScratch1" }, \
191 { KVM_TRACE_COP0(31, 3), "KScratch2" }, \
192 { KVM_TRACE_COP0(31, 4), "KScratch3" }, \
193 { KVM_TRACE_COP0(31, 5), "KScratch4" }, \
194 { KVM_TRACE_COP0(31, 6), "KScratch5" }, \
195 { KVM_TRACE_COP0(31, 7), "KScratch6" }, \
196 { KVM_TRACE_HWR( 0, 0), "CPUNum" }, \
197 { KVM_TRACE_HWR( 1, 0), "SYNCI_Step" }, \
198 { KVM_TRACE_HWR( 2, 0), "CC" }, \
199 { KVM_TRACE_HWR( 3, 0), "CCRes" }, \
200 { KVM_TRACE_HWR(29, 0), "ULR" }
201
202TRACE_EVENT(kvm_hwr,
203 TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op, unsigned int reg,
204 unsigned long val),
205 TP_ARGS(vcpu, op, reg, val),
206 TP_STRUCT__entry(
207 __field(unsigned long, val)
208 __field(u16, reg)
209 __field(u8, op)
210 ),
211
212 TP_fast_assign(
213 __entry->val = val;
214 __entry->reg = reg;
215 __entry->op = op;
216 ),
217
218 TP_printk("%s %s (%s:%u:%u) 0x%08lx",
219 __print_symbolic(__entry->op,
220 kvm_trace_symbol_hwr_ops),
221 __print_symbolic(__entry->reg,
222 kvm_trace_symbol_hwr_regs),
223 __print_symbolic(__entry->reg >> 8,
224 kvm_trace_symbol_hwr_cop),
225 (__entry->reg >> 3) & 0x1f,
226 __entry->reg & 0x7,
227 __entry->val)
228);
229
230#define KVM_TRACE_AUX_RESTORE 0
231#define KVM_TRACE_AUX_SAVE 1
232#define KVM_TRACE_AUX_ENABLE 2
233#define KVM_TRACE_AUX_DISABLE 3
234#define KVM_TRACE_AUX_DISCARD 4
235
236#define KVM_TRACE_AUX_FPU 1
237#define KVM_TRACE_AUX_MSA 2
238#define KVM_TRACE_AUX_FPU_MSA 3
239
240#define kvm_trace_symbol_aux_op \
241 { KVM_TRACE_AUX_RESTORE, "restore" }, \
242 { KVM_TRACE_AUX_SAVE, "save" }, \
243 { KVM_TRACE_AUX_ENABLE, "enable" }, \
244 { KVM_TRACE_AUX_DISABLE, "disable" }, \
245 { KVM_TRACE_AUX_DISCARD, "discard" }
246
247#define kvm_trace_symbol_aux_state \
248 { KVM_TRACE_AUX_FPU, "FPU" }, \
249 { KVM_TRACE_AUX_MSA, "MSA" }, \
250 { KVM_TRACE_AUX_FPU_MSA, "FPU & MSA" }
251
252TRACE_EVENT(kvm_aux,
253 TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op,
254 unsigned int state),
255 TP_ARGS(vcpu, op, state),
256 TP_STRUCT__entry(
257 __field(unsigned long, pc)
258 __field(u8, op)
259 __field(u8, state)
260 ),
261
262 TP_fast_assign(
263 __entry->pc = vcpu->arch.pc;
264 __entry->op = op;
265 __entry->state = state;
266 ),
267
268 TP_printk("%s %s PC: 0x%08lx",
269 __print_symbolic(__entry->op,
270 kvm_trace_symbol_aux_op),
271 __print_symbolic(__entry->state,
272 kvm_trace_symbol_aux_state),
273 __entry->pc)
274);
275
276TRACE_EVENT(kvm_asid_change,
277 TP_PROTO(struct kvm_vcpu *vcpu, unsigned int old_asid,
278 unsigned int new_asid),
279 TP_ARGS(vcpu, old_asid, new_asid),
280 TP_STRUCT__entry(
281 __field(unsigned long, pc)
282 __field(u8, old_asid)
283 __field(u8, new_asid)
284 ),
285
286 TP_fast_assign(
287 __entry->pc = vcpu->arch.pc;
288 __entry->old_asid = old_asid;
289 __entry->new_asid = new_asid;
290 ),
291
292 TP_printk("PC: 0x%08lx old: 0x%02x new: 0x%02x",
293 __entry->pc,
294 __entry->old_asid,
295 __entry->new_asid)
296);
297
298TRACE_EVENT(kvm_guestid_change,
299 TP_PROTO(struct kvm_vcpu *vcpu, unsigned int guestid),
300 TP_ARGS(vcpu, guestid),
301 TP_STRUCT__entry(
302 __field(unsigned int, guestid)
303 ),
304
305 TP_fast_assign(
306 __entry->guestid = guestid;
307 ),
308
309 TP_printk("GuestID: 0x%02x",
310 __entry->guestid)
311);
312
313TRACE_EVENT_FN(kvm_guest_mode_change,
314 TP_PROTO(struct kvm_vcpu *vcpu),
315 TP_ARGS(vcpu),
316 TP_STRUCT__entry(
317 __field(unsigned long, epc)
318 __field(unsigned long, pc)
319 __field(unsigned long, badvaddr)
320 __field(unsigned int, status)
321 __field(unsigned int, cause)
322 ),
323
324 TP_fast_assign(
325 __entry->epc = kvm_read_c0_guest_epc(vcpu->arch.cop0);
326 __entry->pc = vcpu->arch.pc;
327 __entry->badvaddr = kvm_read_c0_guest_badvaddr(vcpu->arch.cop0);
328 __entry->status = kvm_read_c0_guest_status(vcpu->arch.cop0);
329 __entry->cause = kvm_read_c0_guest_cause(vcpu->arch.cop0);
330 ),
331
332 TP_printk("EPC: 0x%08lx PC: 0x%08lx Status: 0x%08x Cause: 0x%08x BadVAddr: 0x%08lx",
333 __entry->epc,
334 __entry->pc,
335 __entry->status,
336 __entry->cause,
337 __entry->badvaddr),
338
339 kvm_guest_mode_change_trace_reg,
340 kvm_guest_mode_change_trace_unreg
341);
342
343#endif /* _TRACE_KVM_H */
344
345/* This part must be outside protection */
346#include <trace/define_trace.h>