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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
[qemu/kevin.git] / target-i386 / machine.c
blob71c0e4dc4711d67dd627c9808d37173316d104bb
1 #include "qemu/osdep.h"
2 #include "qemu-common.h"
3 #include "cpu.h"
4 #include "exec/exec-all.h"
5 #include "hw/hw.h"
6 #include "hw/boards.h"
7 #include "hw/i386/pc.h"
8 #include "hw/isa/isa.h"
9 #include "migration/cpu.h"
10 #include "exec/exec-all.h"
11
12 #include "cpu.h"
13 #include "exec/exec-all.h"
14 #include "sysemu/kvm.h"
15
16 #include "qemu/error-report.h"
17
18 static const VMStateDescription vmstate_segment = {
19 .name = "segment",
20 .version_id = 1,
21 .minimum_version_id = 1,
22 .fields = (VMStateField[]) {
23 VMSTATE_UINT32(selector, SegmentCache),
24 VMSTATE_UINTTL(base, SegmentCache),
25 VMSTATE_UINT32(limit, SegmentCache),
26 VMSTATE_UINT32(flags, SegmentCache),
27 VMSTATE_END_OF_LIST()
28 }
29 };
30
31 #define VMSTATE_SEGMENT(_field, _state) { \
32 .name = (stringify(_field)), \
33 .size = sizeof(SegmentCache), \
34 .vmsd = &vmstate_segment, \
35 .flags = VMS_STRUCT, \
36 .offset = offsetof(_state, _field) \
37 + type_check(SegmentCache,typeof_field(_state, _field)) \
38 }
39
40 #define VMSTATE_SEGMENT_ARRAY(_field, _state, _n) \
41 VMSTATE_STRUCT_ARRAY(_field, _state, _n, 0, vmstate_segment, SegmentCache)
42
43 static const VMStateDescription vmstate_xmm_reg = {
44 .name = "xmm_reg",
45 .version_id = 1,
46 .minimum_version_id = 1,
47 .fields = (VMStateField[]) {
48 VMSTATE_UINT64(ZMM_Q(0), ZMMReg),
49 VMSTATE_UINT64(ZMM_Q(1), ZMMReg),
50 VMSTATE_END_OF_LIST()
51 }
52 };
53
54 #define VMSTATE_XMM_REGS(_field, _state, _start) \
55 VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, CPU_NB_REGS, 0, \
56 vmstate_xmm_reg, ZMMReg)
57
58 /* YMMH format is the same as XMM, but for bits 128-255 */
59 static const VMStateDescription vmstate_ymmh_reg = {
60 .name = "ymmh_reg",
61 .version_id = 1,
62 .minimum_version_id = 1,
63 .fields = (VMStateField[]) {
64 VMSTATE_UINT64(ZMM_Q(2), ZMMReg),
65 VMSTATE_UINT64(ZMM_Q(3), ZMMReg),
66 VMSTATE_END_OF_LIST()
67 }
68 };
69
70 #define VMSTATE_YMMH_REGS_VARS(_field, _state, _start, _v) \
71 VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, CPU_NB_REGS, _v, \
72 vmstate_ymmh_reg, ZMMReg)
73
74 static const VMStateDescription vmstate_zmmh_reg = {
75 .name = "zmmh_reg",
76 .version_id = 1,
77 .minimum_version_id = 1,
78 .fields = (VMStateField[]) {
79 VMSTATE_UINT64(ZMM_Q(4), ZMMReg),
80 VMSTATE_UINT64(ZMM_Q(5), ZMMReg),
81 VMSTATE_UINT64(ZMM_Q(6), ZMMReg),
82 VMSTATE_UINT64(ZMM_Q(7), ZMMReg),
83 VMSTATE_END_OF_LIST()
84 }
85 };
86
87 #define VMSTATE_ZMMH_REGS_VARS(_field, _state, _start) \
88 VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, CPU_NB_REGS, 0, \
89 vmstate_zmmh_reg, ZMMReg)
90
91 #ifdef TARGET_X86_64
92 static const VMStateDescription vmstate_hi16_zmm_reg = {
93 .name = "hi16_zmm_reg",
94 .version_id = 1,
95 .minimum_version_id = 1,
96 .fields = (VMStateField[]) {
97 VMSTATE_UINT64(ZMM_Q(0), ZMMReg),
98 VMSTATE_UINT64(ZMM_Q(1), ZMMReg),
99 VMSTATE_UINT64(ZMM_Q(2), ZMMReg),
100 VMSTATE_UINT64(ZMM_Q(3), ZMMReg),
101 VMSTATE_UINT64(ZMM_Q(4), ZMMReg),
102 VMSTATE_UINT64(ZMM_Q(5), ZMMReg),
103 VMSTATE_UINT64(ZMM_Q(6), ZMMReg),
104 VMSTATE_UINT64(ZMM_Q(7), ZMMReg),
105 VMSTATE_END_OF_LIST()
106 }
107 };
108
109 #define VMSTATE_Hi16_ZMM_REGS_VARS(_field, _state, _start) \
110 VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, CPU_NB_REGS, 0, \
111 vmstate_hi16_zmm_reg, ZMMReg)
112 #endif
113
114 static const VMStateDescription vmstate_bnd_regs = {
115 .name = "bnd_regs",
116 .version_id = 1,
117 .minimum_version_id = 1,
118 .fields = (VMStateField[]) {
119 VMSTATE_UINT64(lb, BNDReg),
120 VMSTATE_UINT64(ub, BNDReg),
121 VMSTATE_END_OF_LIST()
122 }
123 };
124
125 #define VMSTATE_BND_REGS(_field, _state, _n) \
126 VMSTATE_STRUCT_ARRAY(_field, _state, _n, 0, vmstate_bnd_regs, BNDReg)
127
128 static const VMStateDescription vmstate_mtrr_var = {
129 .name = "mtrr_var",
130 .version_id = 1,
131 .minimum_version_id = 1,
132 .fields = (VMStateField[]) {
133 VMSTATE_UINT64(base, MTRRVar),
134 VMSTATE_UINT64(mask, MTRRVar),
135 VMSTATE_END_OF_LIST()
136 }
137 };
138
139 #define VMSTATE_MTRR_VARS(_field, _state, _n, _v) \
140 VMSTATE_STRUCT_ARRAY(_field, _state, _n, _v, vmstate_mtrr_var, MTRRVar)
141
142 static void put_fpreg_error(QEMUFile *f, void *opaque, size_t size)
143 {
144 fprintf(stderr, "call put_fpreg() with invalid arguments\n");
145 exit(0);
146 }
147
148 /* XXX: add that in a FPU generic layer */
149 union x86_longdouble {
150 uint64_t mant;
151 uint16_t exp;
152 };
153
154 #define MANTD1(fp) (fp & ((1LL << 52) - 1))
155 #define EXPBIAS1 1023
156 #define EXPD1(fp) ((fp >> 52) & 0x7FF)
157 #define SIGND1(fp) ((fp >> 32) & 0x80000000)
158
159 static void fp64_to_fp80(union x86_longdouble *p, uint64_t temp)
160 {
161 int e;
162 /* mantissa */
163 p->mant = (MANTD1(temp) << 11) | (1LL << 63);
164 /* exponent + sign */
165 e = EXPD1(temp) - EXPBIAS1 + 16383;
166 e |= SIGND1(temp) >> 16;
167 p->exp = e;
168 }
169
170 static int get_fpreg(QEMUFile *f, void *opaque, size_t size)
171 {
172 FPReg *fp_reg = opaque;
173 uint64_t mant;
174 uint16_t exp;
175
176 qemu_get_be64s(f, &mant);
177 qemu_get_be16s(f, &exp);
178 fp_reg->d = cpu_set_fp80(mant, exp);
179 return 0;
180 }
181
182 static void put_fpreg(QEMUFile *f, void *opaque, size_t size)
183 {
184 FPReg *fp_reg = opaque;
185 uint64_t mant;
186 uint16_t exp;
187 /* we save the real CPU data (in case of MMX usage only 'mant'
188 contains the MMX register */
189 cpu_get_fp80(&mant, &exp, fp_reg->d);
190 qemu_put_be64s(f, &mant);
191 qemu_put_be16s(f, &exp);
192 }
193
194 static const VMStateInfo vmstate_fpreg = {
195 .name = "fpreg",
196 .get = get_fpreg,
197 .put = put_fpreg,
198 };
199
200 static int get_fpreg_1_mmx(QEMUFile *f, void *opaque, size_t size)
201 {
202 union x86_longdouble *p = opaque;
203 uint64_t mant;
204
205 qemu_get_be64s(f, &mant);
206 p->mant = mant;
207 p->exp = 0xffff;
208 return 0;
209 }
210
211 static const VMStateInfo vmstate_fpreg_1_mmx = {
212 .name = "fpreg_1_mmx",
213 .get = get_fpreg_1_mmx,
214 .put = put_fpreg_error,
215 };
216
217 static int get_fpreg_1_no_mmx(QEMUFile *f, void *opaque, size_t size)
218 {
219 union x86_longdouble *p = opaque;
220 uint64_t mant;
221
222 qemu_get_be64s(f, &mant);
223 fp64_to_fp80(p, mant);
224 return 0;
225 }
226
227 static const VMStateInfo vmstate_fpreg_1_no_mmx = {
228 .name = "fpreg_1_no_mmx",
229 .get = get_fpreg_1_no_mmx,
230 .put = put_fpreg_error,
231 };
232
233 static bool fpregs_is_0(void *opaque, int version_id)
234 {
235 X86CPU *cpu = opaque;
236 CPUX86State *env = &cpu->env;
237
238 return (env->fpregs_format_vmstate == 0);
239 }
240
241 static bool fpregs_is_1_mmx(void *opaque, int version_id)
242 {
243 X86CPU *cpu = opaque;
244 CPUX86State *env = &cpu->env;
245 int guess_mmx;
246
247 guess_mmx = ((env->fptag_vmstate == 0xff) &&
248 (env->fpus_vmstate & 0x3800) == 0);
249 return (guess_mmx && (env->fpregs_format_vmstate == 1));
250 }
251
252 static bool fpregs_is_1_no_mmx(void *opaque, int version_id)
253 {
254 X86CPU *cpu = opaque;
255 CPUX86State *env = &cpu->env;
256 int guess_mmx;
257
258 guess_mmx = ((env->fptag_vmstate == 0xff) &&
259 (env->fpus_vmstate & 0x3800) == 0);
260 return (!guess_mmx && (env->fpregs_format_vmstate == 1));
261 }
262
263 #define VMSTATE_FP_REGS(_field, _state, _n) \
264 VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_0, vmstate_fpreg, FPReg), \
265 VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_1_mmx, vmstate_fpreg_1_mmx, FPReg), \
266 VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_1_no_mmx, vmstate_fpreg_1_no_mmx, FPReg)
267
268 static bool version_is_5(void *opaque, int version_id)
269 {
270 return version_id == 5;
271 }
272
273 #ifdef TARGET_X86_64
274 static bool less_than_7(void *opaque, int version_id)
275 {
276 return version_id < 7;
277 }
278
279 static int get_uint64_as_uint32(QEMUFile *f, void *pv, size_t size)
280 {
281 uint64_t *v = pv;
282 *v = qemu_get_be32(f);
283 return 0;
284 }
285
286 static void put_uint64_as_uint32(QEMUFile *f, void *pv, size_t size)
287 {
288 uint64_t *v = pv;
289 qemu_put_be32(f, *v);
290 }
291
292 static const VMStateInfo vmstate_hack_uint64_as_uint32 = {
293 .name = "uint64_as_uint32",
294 .get = get_uint64_as_uint32,
295 .put = put_uint64_as_uint32,
296 };
297
298 #define VMSTATE_HACK_UINT32(_f, _s, _t) \
299 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint64_as_uint32, uint64_t)
300 #endif
301
302 static void cpu_pre_save(void *opaque)
303 {
304 X86CPU *cpu = opaque;
305 CPUX86State *env = &cpu->env;
306 int i;
307
308 /* FPU */
309 env->fpus_vmstate = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
310 env->fptag_vmstate = 0;
311 for(i = 0; i < 8; i++) {
312 env->fptag_vmstate |= ((!env->fptags[i]) << i);
313 }
314
315 env->fpregs_format_vmstate = 0;
316
317 /*
318 * Real mode guest segments register DPL should be zero.
319 * Older KVM version were setting it wrongly.
320 * Fixing it will allow live migration to host with unrestricted guest
321 * support (otherwise the migration will fail with invalid guest state
322 * error).
323 */
324 if (!(env->cr[0] & CR0_PE_MASK) &&
325 (env->segs[R_CS].flags >> DESC_DPL_SHIFT & 3) != 0) {
326 env->segs[R_CS].flags &= ~(env->segs[R_CS].flags & DESC_DPL_MASK);
327 env->segs[R_DS].flags &= ~(env->segs[R_DS].flags & DESC_DPL_MASK);
328 env->segs[R_ES].flags &= ~(env->segs[R_ES].flags & DESC_DPL_MASK);
329 env->segs[R_FS].flags &= ~(env->segs[R_FS].flags & DESC_DPL_MASK);
330 env->segs[R_GS].flags &= ~(env->segs[R_GS].flags & DESC_DPL_MASK);
331 env->segs[R_SS].flags &= ~(env->segs[R_SS].flags & DESC_DPL_MASK);
332 }
333
334 }
335
336 static int cpu_post_load(void *opaque, int version_id)
337 {
338 X86CPU *cpu = opaque;
339 CPUState *cs = CPU(cpu);
340 CPUX86State *env = &cpu->env;
341 int i;
342
343 if (env->tsc_khz && env->user_tsc_khz &&
344 env->tsc_khz != env->user_tsc_khz) {
345 error_report("Mismatch between user-specified TSC frequency and "
346 "migrated TSC frequency");
347 return -EINVAL;
348 }
349
350 /*
351 * Real mode guest segments register DPL should be zero.
352 * Older KVM version were setting it wrongly.
353 * Fixing it will allow live migration from such host that don't have
354 * restricted guest support to a host with unrestricted guest support
355 * (otherwise the migration will fail with invalid guest state
356 * error).
357 */
358 if (!(env->cr[0] & CR0_PE_MASK) &&
359 (env->segs[R_CS].flags >> DESC_DPL_SHIFT & 3) != 0) {
360 env->segs[R_CS].flags &= ~(env->segs[R_CS].flags & DESC_DPL_MASK);
361 env->segs[R_DS].flags &= ~(env->segs[R_DS].flags & DESC_DPL_MASK);
362 env->segs[R_ES].flags &= ~(env->segs[R_ES].flags & DESC_DPL_MASK);
363 env->segs[R_FS].flags &= ~(env->segs[R_FS].flags & DESC_DPL_MASK);
364 env->segs[R_GS].flags &= ~(env->segs[R_GS].flags & DESC_DPL_MASK);
365 env->segs[R_SS].flags &= ~(env->segs[R_SS].flags & DESC_DPL_MASK);
366 }
367
368 /* Older versions of QEMU incorrectly used CS.DPL as the CPL when
369 * running under KVM. This is wrong for conforming code segments.
370 * Luckily, in our implementation the CPL field of hflags is redundant
371 * and we can get the right value from the SS descriptor privilege level.
372 */
373 env->hflags &= ~HF_CPL_MASK;
374 env->hflags |= (env->segs[R_SS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK;
375
376 env->fpstt = (env->fpus_vmstate >> 11) & 7;
377 env->fpus = env->fpus_vmstate & ~0x3800;
378 env->fptag_vmstate ^= 0xff;
379 for(i = 0; i < 8; i++) {
380 env->fptags[i] = (env->fptag_vmstate >> i) & 1;
381 }
382 update_fp_status(env);
383
384 cpu_breakpoint_remove_all(cs, BP_CPU);
385 cpu_watchpoint_remove_all(cs, BP_CPU);
386 {
387 /* Indicate all breakpoints disabled, as they are, then
388 let the helper re-enable them. */
389 target_ulong dr7 = env->dr[7];
390 env->dr[7] = dr7 & ~(DR7_GLOBAL_BP_MASK | DR7_LOCAL_BP_MASK);
391 cpu_x86_update_dr7(env, dr7);
392 }
393 tlb_flush(cs, 1);
394
395 if (tcg_enabled()) {
396 cpu_smm_update(cpu);
397 }
398 return 0;
399 }
400
401 static bool async_pf_msr_needed(void *opaque)
402 {
403 X86CPU *cpu = opaque;
404
405 return cpu->env.async_pf_en_msr != 0;
406 }
407
408 static bool pv_eoi_msr_needed(void *opaque)
409 {
410 X86CPU *cpu = opaque;
411
412 return cpu->env.pv_eoi_en_msr != 0;
413 }
414
415 static bool steal_time_msr_needed(void *opaque)
416 {
417 X86CPU *cpu = opaque;
418
419 return cpu->env.steal_time_msr != 0;
420 }
421
422 static const VMStateDescription vmstate_steal_time_msr = {
423 .name = "cpu/steal_time_msr",
424 .version_id = 1,
425 .minimum_version_id = 1,
426 .needed = steal_time_msr_needed,
427 .fields = (VMStateField[]) {
428 VMSTATE_UINT64(env.steal_time_msr, X86CPU),
429 VMSTATE_END_OF_LIST()
430 }
431 };
432
433 static const VMStateDescription vmstate_async_pf_msr = {
434 .name = "cpu/async_pf_msr",
435 .version_id = 1,
436 .minimum_version_id = 1,
437 .needed = async_pf_msr_needed,
438 .fields = (VMStateField[]) {
439 VMSTATE_UINT64(env.async_pf_en_msr, X86CPU),
440 VMSTATE_END_OF_LIST()
441 }
442 };
443
444 static const VMStateDescription vmstate_pv_eoi_msr = {
445 .name = "cpu/async_pv_eoi_msr",
446 .version_id = 1,
447 .minimum_version_id = 1,
448 .needed = pv_eoi_msr_needed,
449 .fields = (VMStateField[]) {
450 VMSTATE_UINT64(env.pv_eoi_en_msr, X86CPU),
451 VMSTATE_END_OF_LIST()
452 }
453 };
454
455 static bool fpop_ip_dp_needed(void *opaque)
456 {
457 X86CPU *cpu = opaque;
458 CPUX86State *env = &cpu->env;
459
460 return env->fpop != 0 || env->fpip != 0 || env->fpdp != 0;
461 }
462
463 static const VMStateDescription vmstate_fpop_ip_dp = {
464 .name = "cpu/fpop_ip_dp",
465 .version_id = 1,
466 .minimum_version_id = 1,
467 .needed = fpop_ip_dp_needed,
468 .fields = (VMStateField[]) {
469 VMSTATE_UINT16(env.fpop, X86CPU),
470 VMSTATE_UINT64(env.fpip, X86CPU),
471 VMSTATE_UINT64(env.fpdp, X86CPU),
472 VMSTATE_END_OF_LIST()
473 }
474 };
475
476 static bool tsc_adjust_needed(void *opaque)
477 {
478 X86CPU *cpu = opaque;
479 CPUX86State *env = &cpu->env;
480
481 return env->tsc_adjust != 0;
482 }
483
484 static const VMStateDescription vmstate_msr_tsc_adjust = {
485 .name = "cpu/msr_tsc_adjust",
486 .version_id = 1,
487 .minimum_version_id = 1,
488 .needed = tsc_adjust_needed,
489 .fields = (VMStateField[]) {
490 VMSTATE_UINT64(env.tsc_adjust, X86CPU),
491 VMSTATE_END_OF_LIST()
492 }
493 };
494
495 static bool tscdeadline_needed(void *opaque)
496 {
497 X86CPU *cpu = opaque;
498 CPUX86State *env = &cpu->env;
499
500 return env->tsc_deadline != 0;
501 }
502
503 static const VMStateDescription vmstate_msr_tscdeadline = {
504 .name = "cpu/msr_tscdeadline",
505 .version_id = 1,
506 .minimum_version_id = 1,
507 .needed = tscdeadline_needed,
508 .fields = (VMStateField[]) {
509 VMSTATE_UINT64(env.tsc_deadline, X86CPU),
510 VMSTATE_END_OF_LIST()
511 }
512 };
513
514 static bool misc_enable_needed(void *opaque)
515 {
516 X86CPU *cpu = opaque;
517 CPUX86State *env = &cpu->env;
518
519 return env->msr_ia32_misc_enable != MSR_IA32_MISC_ENABLE_DEFAULT;
520 }
521
522 static bool feature_control_needed(void *opaque)
523 {
524 X86CPU *cpu = opaque;
525 CPUX86State *env = &cpu->env;
526
527 return env->msr_ia32_feature_control != 0;
528 }
529
530 static const VMStateDescription vmstate_msr_ia32_misc_enable = {
531 .name = "cpu/msr_ia32_misc_enable",
532 .version_id = 1,
533 .minimum_version_id = 1,
534 .needed = misc_enable_needed,
535 .fields = (VMStateField[]) {
536 VMSTATE_UINT64(env.msr_ia32_misc_enable, X86CPU),
537 VMSTATE_END_OF_LIST()
538 }
539 };
540
541 static const VMStateDescription vmstate_msr_ia32_feature_control = {
542 .name = "cpu/msr_ia32_feature_control",
543 .version_id = 1,
544 .minimum_version_id = 1,
545 .needed = feature_control_needed,
546 .fields = (VMStateField[]) {
547 VMSTATE_UINT64(env.msr_ia32_feature_control, X86CPU),
548 VMSTATE_END_OF_LIST()
549 }
550 };
551
552 static bool pmu_enable_needed(void *opaque)
553 {
554 X86CPU *cpu = opaque;
555 CPUX86State *env = &cpu->env;
556 int i;
557
558 if (env->msr_fixed_ctr_ctrl || env->msr_global_ctrl ||
559 env->msr_global_status || env->msr_global_ovf_ctrl) {
560 return true;
561 }
562 for (i = 0; i < MAX_FIXED_COUNTERS; i++) {
563 if (env->msr_fixed_counters[i]) {
564 return true;
565 }
566 }
567 for (i = 0; i < MAX_GP_COUNTERS; i++) {
568 if (env->msr_gp_counters[i] || env->msr_gp_evtsel[i]) {
569 return true;
570 }
571 }
572
573 return false;
574 }
575
576 static const VMStateDescription vmstate_msr_architectural_pmu = {
577 .name = "cpu/msr_architectural_pmu",
578 .version_id = 1,
579 .minimum_version_id = 1,
580 .needed = pmu_enable_needed,
581 .fields = (VMStateField[]) {
582 VMSTATE_UINT64(env.msr_fixed_ctr_ctrl, X86CPU),
583 VMSTATE_UINT64(env.msr_global_ctrl, X86CPU),
584 VMSTATE_UINT64(env.msr_global_status, X86CPU),
585 VMSTATE_UINT64(env.msr_global_ovf_ctrl, X86CPU),
586 VMSTATE_UINT64_ARRAY(env.msr_fixed_counters, X86CPU, MAX_FIXED_COUNTERS),
587 VMSTATE_UINT64_ARRAY(env.msr_gp_counters, X86CPU, MAX_GP_COUNTERS),
588 VMSTATE_UINT64_ARRAY(env.msr_gp_evtsel, X86CPU, MAX_GP_COUNTERS),
589 VMSTATE_END_OF_LIST()
590 }
591 };
592
593 static bool mpx_needed(void *opaque)
594 {
595 X86CPU *cpu = opaque;
596 CPUX86State *env = &cpu->env;
597 unsigned int i;
598
599 for (i = 0; i < 4; i++) {
600 if (env->bnd_regs[i].lb || env->bnd_regs[i].ub) {
601 return true;
602 }
603 }
604
605 if (env->bndcs_regs.cfgu || env->bndcs_regs.sts) {
606 return true;
607 }
608
609 return !!env->msr_bndcfgs;
610 }
611
612 static const VMStateDescription vmstate_mpx = {
613 .name = "cpu/mpx",
614 .version_id = 1,
615 .minimum_version_id = 1,
616 .needed = mpx_needed,
617 .fields = (VMStateField[]) {
618 VMSTATE_BND_REGS(env.bnd_regs, X86CPU, 4),
619 VMSTATE_UINT64(env.bndcs_regs.cfgu, X86CPU),
620 VMSTATE_UINT64(env.bndcs_regs.sts, X86CPU),
621 VMSTATE_UINT64(env.msr_bndcfgs, X86CPU),
622 VMSTATE_END_OF_LIST()
623 }
624 };
625
626 static bool hyperv_hypercall_enable_needed(void *opaque)
627 {
628 X86CPU *cpu = opaque;
629 CPUX86State *env = &cpu->env;
630
631 return env->msr_hv_hypercall != 0 || env->msr_hv_guest_os_id != 0;
632 }
633
634 static const VMStateDescription vmstate_msr_hypercall_hypercall = {
635 .name = "cpu/msr_hyperv_hypercall",
636 .version_id = 1,
637 .minimum_version_id = 1,
638 .needed = hyperv_hypercall_enable_needed,
639 .fields = (VMStateField[]) {
640 VMSTATE_UINT64(env.msr_hv_guest_os_id, X86CPU),
641 VMSTATE_UINT64(env.msr_hv_hypercall, X86CPU),
642 VMSTATE_END_OF_LIST()
643 }
644 };
645
646 static bool hyperv_vapic_enable_needed(void *opaque)
647 {
648 X86CPU *cpu = opaque;
649 CPUX86State *env = &cpu->env;
650
651 return env->msr_hv_vapic != 0;
652 }
653
654 static const VMStateDescription vmstate_msr_hyperv_vapic = {
655 .name = "cpu/msr_hyperv_vapic",
656 .version_id = 1,
657 .minimum_version_id = 1,
658 .needed = hyperv_vapic_enable_needed,
659 .fields = (VMStateField[]) {
660 VMSTATE_UINT64(env.msr_hv_vapic, X86CPU),
661 VMSTATE_END_OF_LIST()
662 }
663 };
664
665 static bool hyperv_time_enable_needed(void *opaque)
666 {
667 X86CPU *cpu = opaque;
668 CPUX86State *env = &cpu->env;
669
670 return env->msr_hv_tsc != 0;
671 }
672
673 static const VMStateDescription vmstate_msr_hyperv_time = {
674 .name = "cpu/msr_hyperv_time",
675 .version_id = 1,
676 .minimum_version_id = 1,
677 .needed = hyperv_time_enable_needed,
678 .fields = (VMStateField[]) {
679 VMSTATE_UINT64(env.msr_hv_tsc, X86CPU),
680 VMSTATE_END_OF_LIST()
681 }
682 };
683
684 static bool hyperv_crash_enable_needed(void *opaque)
685 {
686 X86CPU *cpu = opaque;
687 CPUX86State *env = &cpu->env;
688 int i;
689
690 for (i = 0; i < HV_X64_MSR_CRASH_PARAMS; i++) {
691 if (env->msr_hv_crash_params[i]) {
692 return true;
693 }
694 }
695 return false;
696 }
697
698 static const VMStateDescription vmstate_msr_hyperv_crash = {
699 .name = "cpu/msr_hyperv_crash",
700 .version_id = 1,
701 .minimum_version_id = 1,
702 .needed = hyperv_crash_enable_needed,
703 .fields = (VMStateField[]) {
704 VMSTATE_UINT64_ARRAY(env.msr_hv_crash_params,
705 X86CPU, HV_X64_MSR_CRASH_PARAMS),
706 VMSTATE_END_OF_LIST()
707 }
708 };
709
710 static bool hyperv_runtime_enable_needed(void *opaque)
711 {
712 X86CPU *cpu = opaque;
713 CPUX86State *env = &cpu->env;
714
715 return env->msr_hv_runtime != 0;
716 }
717
718 static const VMStateDescription vmstate_msr_hyperv_runtime = {
719 .name = "cpu/msr_hyperv_runtime",
720 .version_id = 1,
721 .minimum_version_id = 1,
722 .needed = hyperv_runtime_enable_needed,
723 .fields = (VMStateField[]) {
724 VMSTATE_UINT64(env.msr_hv_runtime, X86CPU),
725 VMSTATE_END_OF_LIST()
726 }
727 };
728
729 static bool hyperv_synic_enable_needed(void *opaque)
730 {
731 X86CPU *cpu = opaque;
732 CPUX86State *env = &cpu->env;
733 int i;
734
735 if (env->msr_hv_synic_control != 0 ||
736 env->msr_hv_synic_evt_page != 0 ||
737 env->msr_hv_synic_msg_page != 0) {
738 return true;
739 }
740
741 for (i = 0; i < ARRAY_SIZE(env->msr_hv_synic_sint); i++) {
742 if (env->msr_hv_synic_sint[i] != 0) {
743 return true;
744 }
745 }
746
747 return false;
748 }
749
750 static const VMStateDescription vmstate_msr_hyperv_synic = {
751 .name = "cpu/msr_hyperv_synic",
752 .version_id = 1,
753 .minimum_version_id = 1,
754 .needed = hyperv_synic_enable_needed,
755 .fields = (VMStateField[]) {
756 VMSTATE_UINT64(env.msr_hv_synic_control, X86CPU),
757 VMSTATE_UINT64(env.msr_hv_synic_evt_page, X86CPU),
758 VMSTATE_UINT64(env.msr_hv_synic_msg_page, X86CPU),
759 VMSTATE_UINT64_ARRAY(env.msr_hv_synic_sint, X86CPU,
760 HV_SYNIC_SINT_COUNT),
761 VMSTATE_END_OF_LIST()
762 }
763 };
764
765 static bool hyperv_stimer_enable_needed(void *opaque)
766 {
767 X86CPU *cpu = opaque;
768 CPUX86State *env = &cpu->env;
769 int i;
770
771 for (i = 0; i < ARRAY_SIZE(env->msr_hv_stimer_config); i++) {
772 if (env->msr_hv_stimer_config[i] || env->msr_hv_stimer_count[i]) {
773 return true;
774 }
775 }
776 return false;
777 }
778
779 static const VMStateDescription vmstate_msr_hyperv_stimer = {
780 .name = "cpu/msr_hyperv_stimer",
781 .version_id = 1,
782 .minimum_version_id = 1,
783 .needed = hyperv_stimer_enable_needed,
784 .fields = (VMStateField[]) {
785 VMSTATE_UINT64_ARRAY(env.msr_hv_stimer_config,
786 X86CPU, HV_SYNIC_STIMER_COUNT),
787 VMSTATE_UINT64_ARRAY(env.msr_hv_stimer_count,
788 X86CPU, HV_SYNIC_STIMER_COUNT),
789 VMSTATE_END_OF_LIST()
790 }
791 };
792
793 static bool avx512_needed(void *opaque)
794 {
795 X86CPU *cpu = opaque;
796 CPUX86State *env = &cpu->env;
797 unsigned int i;
798
799 for (i = 0; i < NB_OPMASK_REGS; i++) {
800 if (env->opmask_regs[i]) {
801 return true;
802 }
803 }
804
805 for (i = 0; i < CPU_NB_REGS; i++) {
806 #define ENV_XMM(reg, field) (env->xmm_regs[reg].ZMM_Q(field))
807 if (ENV_XMM(i, 4) || ENV_XMM(i, 6) ||
808 ENV_XMM(i, 5) || ENV_XMM(i, 7)) {
809 return true;
810 }
811 #ifdef TARGET_X86_64
812 if (ENV_XMM(i+16, 0) || ENV_XMM(i+16, 1) ||
813 ENV_XMM(i+16, 2) || ENV_XMM(i+16, 3) ||
814 ENV_XMM(i+16, 4) || ENV_XMM(i+16, 5) ||
815 ENV_XMM(i+16, 6) || ENV_XMM(i+16, 7)) {
816 return true;
817 }
818 #endif
819 }
820
821 return false;
822 }
823
824 static const VMStateDescription vmstate_avx512 = {
825 .name = "cpu/avx512",
826 .version_id = 1,
827 .minimum_version_id = 1,
828 .needed = avx512_needed,
829 .fields = (VMStateField[]) {
830 VMSTATE_UINT64_ARRAY(env.opmask_regs, X86CPU, NB_OPMASK_REGS),
831 VMSTATE_ZMMH_REGS_VARS(env.xmm_regs, X86CPU, 0),
832 #ifdef TARGET_X86_64
833 VMSTATE_Hi16_ZMM_REGS_VARS(env.xmm_regs, X86CPU, 16),
834 #endif
835 VMSTATE_END_OF_LIST()
836 }
837 };
838
839 static bool xss_needed(void *opaque)
840 {
841 X86CPU *cpu = opaque;
842 CPUX86State *env = &cpu->env;
843
844 return env->xss != 0;
845 }
846
847 static const VMStateDescription vmstate_xss = {
848 .name = "cpu/xss",
849 .version_id = 1,
850 .minimum_version_id = 1,
851 .needed = xss_needed,
852 .fields = (VMStateField[]) {
853 VMSTATE_UINT64(env.xss, X86CPU),
854 VMSTATE_END_OF_LIST()
855 }
856 };
857
858 #ifdef TARGET_X86_64
859 static bool pkru_needed(void *opaque)
860 {
861 X86CPU *cpu = opaque;
862 CPUX86State *env = &cpu->env;
863
864 return env->pkru != 0;
865 }
866
867 static const VMStateDescription vmstate_pkru = {
868 .name = "cpu/pkru",
869 .version_id = 1,
870 .minimum_version_id = 1,
871 .needed = pkru_needed,
872 .fields = (VMStateField[]){
873 VMSTATE_UINT32(env.pkru, X86CPU),
874 VMSTATE_END_OF_LIST()
875 }
876 };
877 #endif
878
879 static bool tsc_khz_needed(void *opaque)
880 {
881 X86CPU *cpu = opaque;
882 CPUX86State *env = &cpu->env;
883 MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
884 PCMachineClass *pcmc = PC_MACHINE_CLASS(mc);
885 return env->tsc_khz && pcmc->save_tsc_khz;
886 }
887
888 static const VMStateDescription vmstate_tsc_khz = {
889 .name = "cpu/tsc_khz",
890 .version_id = 1,
891 .minimum_version_id = 1,
892 .needed = tsc_khz_needed,
893 .fields = (VMStateField[]) {
894 VMSTATE_INT64(env.tsc_khz, X86CPU),
895 VMSTATE_END_OF_LIST()
896 }
897 };
898
899 static bool mcg_ext_ctl_needed(void *opaque)
900 {
901 X86CPU *cpu = opaque;
902 CPUX86State *env = &cpu->env;
903 return cpu->enable_lmce && env->mcg_ext_ctl;
904 }
905
906 static const VMStateDescription vmstate_mcg_ext_ctl = {
907 .name = "cpu/mcg_ext_ctl",
908 .version_id = 1,
909 .minimum_version_id = 1,
910 .needed = mcg_ext_ctl_needed,
911 .fields = (VMStateField[]) {
912 VMSTATE_UINT64(env.mcg_ext_ctl, X86CPU),
913 VMSTATE_END_OF_LIST()
914 }
915 };
916
917 VMStateDescription vmstate_x86_cpu = {
918 .name = "cpu",
919 .version_id = 12,
920 .minimum_version_id = 3,
921 .pre_save = cpu_pre_save,
922 .post_load = cpu_post_load,
923 .fields = (VMStateField[]) {
924 VMSTATE_UINTTL_ARRAY(env.regs, X86CPU, CPU_NB_REGS),
925 VMSTATE_UINTTL(env.eip, X86CPU),
926 VMSTATE_UINTTL(env.eflags, X86CPU),
927 VMSTATE_UINT32(env.hflags, X86CPU),
928 /* FPU */
929 VMSTATE_UINT16(env.fpuc, X86CPU),
930 VMSTATE_UINT16(env.fpus_vmstate, X86CPU),
931 VMSTATE_UINT16(env.fptag_vmstate, X86CPU),
932 VMSTATE_UINT16(env.fpregs_format_vmstate, X86CPU),
933 VMSTATE_FP_REGS(env.fpregs, X86CPU, 8),
934
935 VMSTATE_SEGMENT_ARRAY(env.segs, X86CPU, 6),
936 VMSTATE_SEGMENT(env.ldt, X86CPU),
937 VMSTATE_SEGMENT(env.tr, X86CPU),
938 VMSTATE_SEGMENT(env.gdt, X86CPU),
939 VMSTATE_SEGMENT(env.idt, X86CPU),
940
941 VMSTATE_UINT32(env.sysenter_cs, X86CPU),
942 #ifdef TARGET_X86_64
943 /* Hack: In v7 size changed from 32 to 64 bits on x86_64 */
944 VMSTATE_HACK_UINT32(env.sysenter_esp, X86CPU, less_than_7),
945 VMSTATE_HACK_UINT32(env.sysenter_eip, X86CPU, less_than_7),
946 VMSTATE_UINTTL_V(env.sysenter_esp, X86CPU, 7),
947 VMSTATE_UINTTL_V(env.sysenter_eip, X86CPU, 7),
948 #else
949 VMSTATE_UINTTL(env.sysenter_esp, X86CPU),
950 VMSTATE_UINTTL(env.sysenter_eip, X86CPU),
951 #endif
952
953 VMSTATE_UINTTL(env.cr[0], X86CPU),
954 VMSTATE_UINTTL(env.cr[2], X86CPU),
955 VMSTATE_UINTTL(env.cr[3], X86CPU),
956 VMSTATE_UINTTL(env.cr[4], X86CPU),
957 VMSTATE_UINTTL_ARRAY(env.dr, X86CPU, 8),
958 /* MMU */
959 VMSTATE_INT32(env.a20_mask, X86CPU),
960 /* XMM */
961 VMSTATE_UINT32(env.mxcsr, X86CPU),
962 VMSTATE_XMM_REGS(env.xmm_regs, X86CPU, 0),
963
964 #ifdef TARGET_X86_64
965 VMSTATE_UINT64(env.efer, X86CPU),
966 VMSTATE_UINT64(env.star, X86CPU),
967 VMSTATE_UINT64(env.lstar, X86CPU),
968 VMSTATE_UINT64(env.cstar, X86CPU),
969 VMSTATE_UINT64(env.fmask, X86CPU),
970 VMSTATE_UINT64(env.kernelgsbase, X86CPU),
971 #endif
972 VMSTATE_UINT32_V(env.smbase, X86CPU, 4),
973
974 VMSTATE_UINT64_V(env.pat, X86CPU, 5),
975 VMSTATE_UINT32_V(env.hflags2, X86CPU, 5),
976
977 VMSTATE_UINT32_TEST(parent_obj.halted, X86CPU, version_is_5),
978 VMSTATE_UINT64_V(env.vm_hsave, X86CPU, 5),
979 VMSTATE_UINT64_V(env.vm_vmcb, X86CPU, 5),
980 VMSTATE_UINT64_V(env.tsc_offset, X86CPU, 5),
981 VMSTATE_UINT64_V(env.intercept, X86CPU, 5),
982 VMSTATE_UINT16_V(env.intercept_cr_read, X86CPU, 5),
983 VMSTATE_UINT16_V(env.intercept_cr_write, X86CPU, 5),
984 VMSTATE_UINT16_V(env.intercept_dr_read, X86CPU, 5),
985 VMSTATE_UINT16_V(env.intercept_dr_write, X86CPU, 5),
986 VMSTATE_UINT32_V(env.intercept_exceptions, X86CPU, 5),
987 VMSTATE_UINT8_V(env.v_tpr, X86CPU, 5),
988 /* MTRRs */
989 VMSTATE_UINT64_ARRAY_V(env.mtrr_fixed, X86CPU, 11, 8),
990 VMSTATE_UINT64_V(env.mtrr_deftype, X86CPU, 8),
991 VMSTATE_MTRR_VARS(env.mtrr_var, X86CPU, MSR_MTRRcap_VCNT, 8),
992 /* KVM-related states */
993 VMSTATE_INT32_V(env.interrupt_injected, X86CPU, 9),
994 VMSTATE_UINT32_V(env.mp_state, X86CPU, 9),
995 VMSTATE_UINT64_V(env.tsc, X86CPU, 9),
996 VMSTATE_INT32_V(env.exception_injected, X86CPU, 11),
997 VMSTATE_UINT8_V(env.soft_interrupt, X86CPU, 11),
998 VMSTATE_UINT8_V(env.nmi_injected, X86CPU, 11),
999 VMSTATE_UINT8_V(env.nmi_pending, X86CPU, 11),
1000 VMSTATE_UINT8_V(env.has_error_code, X86CPU, 11),
1001 VMSTATE_UINT32_V(env.sipi_vector, X86CPU, 11),
1002 /* MCE */
1003 VMSTATE_UINT64_V(env.mcg_cap, X86CPU, 10),
1004 VMSTATE_UINT64_V(env.mcg_status, X86CPU, 10),
1005 VMSTATE_UINT64_V(env.mcg_ctl, X86CPU, 10),
1006 VMSTATE_UINT64_ARRAY_V(env.mce_banks, X86CPU, MCE_BANKS_DEF * 4, 10),
1007 /* rdtscp */
1008 VMSTATE_UINT64_V(env.tsc_aux, X86CPU, 11),
1009 /* KVM pvclock msr */
1010 VMSTATE_UINT64_V(env.system_time_msr, X86CPU, 11),
1011 VMSTATE_UINT64_V(env.wall_clock_msr, X86CPU, 11),
1012 /* XSAVE related fields */
1013 VMSTATE_UINT64_V(env.xcr0, X86CPU, 12),
1014 VMSTATE_UINT64_V(env.xstate_bv, X86CPU, 12),
1015 VMSTATE_YMMH_REGS_VARS(env.xmm_regs, X86CPU, 0, 12),
1016 VMSTATE_END_OF_LIST()
1017 /* The above list is not sorted /wrt version numbers, watch out! */
1018 },
1019 .subsections = (const VMStateDescription*[]) {
1020 &vmstate_async_pf_msr,
1021 &vmstate_pv_eoi_msr,
1022 &vmstate_steal_time_msr,
1023 &vmstate_fpop_ip_dp,
1024 &vmstate_msr_tsc_adjust,
1025 &vmstate_msr_tscdeadline,
1026 &vmstate_msr_ia32_misc_enable,
1027 &vmstate_msr_ia32_feature_control,
1028 &vmstate_msr_architectural_pmu,
1029 &vmstate_mpx,
1030 &vmstate_msr_hypercall_hypercall,
1031 &vmstate_msr_hyperv_vapic,
1032 &vmstate_msr_hyperv_time,
1033 &vmstate_msr_hyperv_crash,
1034 &vmstate_msr_hyperv_runtime,
1035 &vmstate_msr_hyperv_synic,
1036 &vmstate_msr_hyperv_stimer,
1037 &vmstate_avx512,
1038 &vmstate_xss,
1039 &vmstate_tsc_khz,
1040 #ifdef TARGET_X86_64
1041 &vmstate_pkru,
1042 #endif
1043 &vmstate_mcg_ext_ctl,
1044 NULL
1045 }
1046 };
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