2 * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
4 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation;
8 * version 2.1 of the License (not later!)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this program; if not, see <http://www.gnu.org/licenses>
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
25 #include "event-parse.h"
33 static void init_disassembler(void)
36 ud_set_syntax(&ud
, UD_SYN_ATT
);
39 static const char *disassemble(unsigned char *insn
, int len
, uint64_t rip
,
40 int cr0_pe
, int eflags_vm
,
57 ud_set_mode(&ud
, mode
);
58 ud_set_input_buffer(&ud
, insn
, len
);
60 return ud_insn_asm(&ud
);
65 static void init_disassembler(void)
69 static const char *disassemble(unsigned char *insn
, int len
, uint64_t rip
,
70 int cr0_pe
, int eflags_vm
,
73 static char out
[15*3+1];
76 for (i
= 0; i
< len
; ++i
)
77 sprintf(out
+ i
* 3, "%02x ", insn
[i
]);
85 #define VMX_EXIT_REASONS \
86 _ER(EXCEPTION_NMI, 0) \
87 _ER(EXTERNAL_INTERRUPT, 1) \
88 _ER(TRIPLE_FAULT, 2) \
89 _ER(PENDING_INTERRUPT, 7) \
110 _ER(IO_INSTRUCTION, 30) \
113 _ER(MWAIT_INSTRUCTION, 36) \
114 _ER(MONITOR_INSTRUCTION, 39) \
115 _ER(PAUSE_INSTRUCTION, 40) \
116 _ER(MCE_DURING_VMENTRY, 41) \
117 _ER(TPR_BELOW_THRESHOLD, 43) \
118 _ER(APIC_ACCESS, 44) \
119 _ER(EOI_INDUCED, 45) \
120 _ER(EPT_VIOLATION, 48) \
121 _ER(EPT_MISCONFIG, 49) \
123 _ER(PREEMPTION_TIMER, 52) \
126 _ER(APIC_WRITE, 56) \
129 #define SVM_EXIT_REASONS \
130 _ER(EXIT_READ_CR0, 0x000) \
131 _ER(EXIT_READ_CR3, 0x003) \
132 _ER(EXIT_READ_CR4, 0x004) \
133 _ER(EXIT_READ_CR8, 0x008) \
134 _ER(EXIT_WRITE_CR0, 0x010) \
135 _ER(EXIT_WRITE_CR3, 0x013) \
136 _ER(EXIT_WRITE_CR4, 0x014) \
137 _ER(EXIT_WRITE_CR8, 0x018) \
138 _ER(EXIT_READ_DR0, 0x020) \
139 _ER(EXIT_READ_DR1, 0x021) \
140 _ER(EXIT_READ_DR2, 0x022) \
141 _ER(EXIT_READ_DR3, 0x023) \
142 _ER(EXIT_READ_DR4, 0x024) \
143 _ER(EXIT_READ_DR5, 0x025) \
144 _ER(EXIT_READ_DR6, 0x026) \
145 _ER(EXIT_READ_DR7, 0x027) \
146 _ER(EXIT_WRITE_DR0, 0x030) \
147 _ER(EXIT_WRITE_DR1, 0x031) \
148 _ER(EXIT_WRITE_DR2, 0x032) \
149 _ER(EXIT_WRITE_DR3, 0x033) \
150 _ER(EXIT_WRITE_DR4, 0x034) \
151 _ER(EXIT_WRITE_DR5, 0x035) \
152 _ER(EXIT_WRITE_DR6, 0x036) \
153 _ER(EXIT_WRITE_DR7, 0x037) \
154 _ER(EXIT_EXCP_BASE, 0x040) \
155 _ER(EXIT_INTR, 0x060) \
156 _ER(EXIT_NMI, 0x061) \
157 _ER(EXIT_SMI, 0x062) \
158 _ER(EXIT_INIT, 0x063) \
159 _ER(EXIT_VINTR, 0x064) \
160 _ER(EXIT_CR0_SEL_WRITE, 0x065) \
161 _ER(EXIT_IDTR_READ, 0x066) \
162 _ER(EXIT_GDTR_READ, 0x067) \
163 _ER(EXIT_LDTR_READ, 0x068) \
164 _ER(EXIT_TR_READ, 0x069) \
165 _ER(EXIT_IDTR_WRITE, 0x06a) \
166 _ER(EXIT_GDTR_WRITE, 0x06b) \
167 _ER(EXIT_LDTR_WRITE, 0x06c) \
168 _ER(EXIT_TR_WRITE, 0x06d) \
169 _ER(EXIT_RDTSC, 0x06e) \
170 _ER(EXIT_RDPMC, 0x06f) \
171 _ER(EXIT_PUSHF, 0x070) \
172 _ER(EXIT_POPF, 0x071) \
173 _ER(EXIT_CPUID, 0x072) \
174 _ER(EXIT_RSM, 0x073) \
175 _ER(EXIT_IRET, 0x074) \
176 _ER(EXIT_SWINT, 0x075) \
177 _ER(EXIT_INVD, 0x076) \
178 _ER(EXIT_PAUSE, 0x077) \
179 _ER(EXIT_HLT, 0x078) \
180 _ER(EXIT_INVLPG, 0x079) \
181 _ER(EXIT_INVLPGA, 0x07a) \
182 _ER(EXIT_IOIO, 0x07b) \
183 _ER(EXIT_MSR, 0x07c) \
184 _ER(EXIT_TASK_SWITCH, 0x07d) \
185 _ER(EXIT_FERR_FREEZE, 0x07e) \
186 _ER(EXIT_SHUTDOWN, 0x07f) \
187 _ER(EXIT_VMRUN, 0x080) \
188 _ER(EXIT_VMMCALL, 0x081) \
189 _ER(EXIT_VMLOAD, 0x082) \
190 _ER(EXIT_VMSAVE, 0x083) \
191 _ER(EXIT_STGI, 0x084) \
192 _ER(EXIT_CLGI, 0x085) \
193 _ER(EXIT_SKINIT, 0x086) \
194 _ER(EXIT_RDTSCP, 0x087) \
195 _ER(EXIT_ICEBP, 0x088) \
196 _ER(EXIT_WBINVD, 0x089) \
197 _ER(EXIT_MONITOR, 0x08a) \
198 _ER(EXIT_MWAIT, 0x08b) \
199 _ER(EXIT_MWAIT_COND, 0x08c) \
200 _ER(EXIT_NPF, 0x400) \
203 #define _ER(reason, val) { #reason, val },
209 static struct str_values vmx_exit_reasons
[] = {
214 static struct str_values svm_exit_reasons
[] = {
219 static struct isa_exit_reasons
{
221 struct str_values
*strings
;
222 } isa_exit_reasons
[] = {
223 { .isa
= 1, .strings
= vmx_exit_reasons
},
224 { .isa
= 2, .strings
= svm_exit_reasons
},
228 static const char *find_exit_reason(unsigned isa
, int val
)
230 struct str_values
*strings
= NULL
;
233 for (i
= 0; isa_exit_reasons
[i
].strings
; ++i
)
234 if (isa_exit_reasons
[i
].isa
== isa
) {
235 strings
= isa_exit_reasons
[i
].strings
;
239 return "UNKNOWN-ISA";
240 for (i
= 0; strings
[i
].val
>= 0; i
++)
241 if (strings
[i
].val
== val
)
244 return strings
[i
].str
;
248 static int kvm_exit_handler(struct trace_seq
*s
, struct pevent_record
*record
,
249 struct event_format
*event
, void *context
)
251 unsigned long long isa
;
252 unsigned long long val
;
253 unsigned long long info1
= 0, info2
= 0;
255 if (pevent_get_field_val(s
, event
, "exit_reason", record
, &val
, 1) < 0)
258 if (pevent_get_field_val(s
, event
, "isa", record
, &isa
, 0) < 0)
261 trace_seq_printf(s
, "reason %s", find_exit_reason(isa
, val
));
263 pevent_print_num_field(s
, " rip 0x%lx", event
, "guest_rip", record
, 1);
265 if (pevent_get_field_val(s
, event
, "info1", record
, &info1
, 0) >= 0
266 && pevent_get_field_val(s
, event
, "info2", record
, &info2
, 0) >= 0)
267 trace_seq_printf(s
, " info %llx %llx", info1
, info2
);
272 #define KVM_EMUL_INSN_F_CR0_PE (1 << 0)
273 #define KVM_EMUL_INSN_F_EFL_VM (1 << 1)
274 #define KVM_EMUL_INSN_F_CS_D (1 << 2)
275 #define KVM_EMUL_INSN_F_CS_L (1 << 3)
277 static int kvm_emulate_insn_handler(struct trace_seq
*s
,
278 struct pevent_record
*record
,
279 struct event_format
*event
, void *context
)
281 unsigned long long rip
, csbase
, len
, flags
, failed
;
286 if (pevent_get_field_val(s
, event
, "rip", record
, &rip
, 1) < 0)
289 if (pevent_get_field_val(s
, event
, "csbase", record
, &csbase
, 1) < 0)
292 if (pevent_get_field_val(s
, event
, "len", record
, &len
, 1) < 0)
295 if (pevent_get_field_val(s
, event
, "flags", record
, &flags
, 1) < 0)
298 if (pevent_get_field_val(s
, event
, "failed", record
, &failed
, 1) < 0)
301 insn
= pevent_get_field_raw(s
, event
, "insn", record
, &llen
, 1);
305 disasm
= disassemble(insn
, len
, rip
,
306 flags
& KVM_EMUL_INSN_F_CR0_PE
,
307 flags
& KVM_EMUL_INSN_F_EFL_VM
,
308 flags
& KVM_EMUL_INSN_F_CS_D
,
309 flags
& KVM_EMUL_INSN_F_CS_L
);
311 trace_seq_printf(s
, "%llx:%llx: %s%s", csbase
, rip
, disasm
,
312 failed
? " FAIL" : "");
316 union kvm_mmu_page_role
{
322 unsigned pad_for_nice_hex_output
:6;
331 static int kvm_mmu_print_role(struct trace_seq
*s
, struct pevent_record
*record
,
332 struct event_format
*event
, void *context
)
334 unsigned long long val
;
335 static const char *access_str
[] = {
336 "---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux"
338 union kvm_mmu_page_role role
;
340 if (pevent_get_field_val(s
, event
, "role", record
, &val
, 1) < 0)
343 role
.word
= (int)val
;
346 * We can only use the structure if file is of the same
349 if (pevent_is_file_bigendian(event
->pevent
) ==
350 pevent_is_host_bigendian(event
->pevent
)) {
352 trace_seq_printf(s
, "%u/%u q%u%s %s%s %spge %snxe",
356 role
.direct
? " direct" : "",
357 access_str
[role
.access
],
358 role
.invalid
? " invalid" : "",
359 role
.cr4_pge
? "" : "!",
360 role
.nxe
? "" : "!");
362 trace_seq_printf(s
, "WORD: %08x", role
.word
);
364 pevent_print_num_field(s
, " root %u ", event
,
365 "root_count", record
, 1);
367 if (pevent_get_field_val(s
, event
, "unsync", record
, &val
, 1) < 0)
370 trace_seq_printf(s
, "%s%c", val
? "unsync" : "sync", 0);
374 static int kvm_mmu_get_page_handler(struct trace_seq
*s
,
375 struct pevent_record
*record
,
376 struct event_format
*event
, void *context
)
378 unsigned long long val
;
380 if (pevent_get_field_val(s
, event
, "created", record
, &val
, 1) < 0)
383 trace_seq_printf(s
, "%s ", val
? "new" : "existing");
385 if (pevent_get_field_val(s
, event
, "gfn", record
, &val
, 1) < 0)
388 trace_seq_printf(s
, "sp gfn %llx ", val
);
389 return kvm_mmu_print_role(s
, record
, event
, context
);
392 int PEVENT_PLUGIN_LOADER(struct pevent
*pevent
)
396 pevent_register_event_handler(pevent
, -1, "kvm", "kvm_exit",
397 kvm_exit_handler
, NULL
);
399 pevent_register_event_handler(pevent
, -1, "kvm", "kvm_emulate_insn",
400 kvm_emulate_insn_handler
, NULL
);
402 pevent_register_event_handler(pevent
, -1, "kvmmmu", "kvm_mmu_get_page",
403 kvm_mmu_get_page_handler
, NULL
);
405 pevent_register_event_handler(pevent
, -1, "kvmmmu", "kvm_mmu_sync_page",
406 kvm_mmu_print_role
, NULL
);
408 pevent_register_event_handler(pevent
, -1,
409 "kvmmmu", "kvm_mmu_unsync_page",
410 kvm_mmu_print_role
, NULL
);
412 pevent_register_event_handler(pevent
, -1, "kvmmmu", "kvm_mmu_zap_page",
413 kvm_mmu_print_role
, NULL
);
415 pevent_register_event_handler(pevent
, -1, "kvmmmu",
416 "kvm_mmu_prepare_zap_page", kvm_mmu_print_role
,