2 * i386 helpers (without register variable usage)
4 * Copyright (c) 2003 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
30 #include "qemu-common.h"
35 static void add_flagname_to_bitmaps(char *flagname, uint32_t *features,
36 uint32_t *ext_features,
37 uint32_t *ext2_features,
38 uint32_t *ext3_features)
41 /* feature flags taken from "Intel Processor Identification and the CPUID
42 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
43 * about feature names, the Linux name is used. */
44 static const char *feature_name[] = {
45 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
46 "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
47 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL, "ds" /* Intel dts */, "acpi", "mmx",
48 "fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe",
50 static const char *ext_feature_name[] = {
51 "pni" /* Intel,AMD sse3 */, NULL, NULL, "monitor", "ds_cpl", "vmx", NULL /* Linux smx */, "est",
52 "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
53 NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
54 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
56 static const char *ext2_feature_name[] = {
57 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
58 "cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall", "mtrr", "pge", "mca", "cmov",
59 "pat", "pse36", NULL, NULL /* Linux mp */, "nx" /* Intel xd */, NULL, "mmxext", "mmx",
60 "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow",
62 static const char *ext3_feature_name[] = {
63 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
64 "3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL, "skinit", "wdt", NULL, NULL,
65 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
66 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
69 for ( i = 0 ; i < 32 ; i++ )
70 if (feature_name[i] && !strcmp (flagname, feature_name[i])) {
74 for ( i = 0 ; i < 32 ; i++ )
75 if (ext_feature_name[i] && !strcmp (flagname, ext_feature_name[i])) {
76 *ext_features |= 1 << i;
79 for ( i = 0 ; i < 32 ; i++ )
80 if (ext2_feature_name[i] && !strcmp (flagname, ext2_feature_name[i])) {
81 *ext2_features |= 1 << i;
84 for ( i = 0 ; i < 32 ; i++ )
85 if (ext3_feature_name[i] && !strcmp (flagname, ext3_feature_name[i])) {
86 *ext3_features |= 1 << i;
89 fprintf(stderr, "CPU feature %s not found\n", flagname);
92 typedef struct x86_def_t {
95 uint32_t vendor1, vendor2, vendor3;
99 uint32_t features, ext_features, ext2_features, ext3_features;
104 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
105 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
106 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX)
107 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
108 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
109 CPUID_PSE36 | CPUID_FXSR)
110 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
111 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
112 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
113 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
114 CPUID_PAE | CPUID_SEP | CPUID_APIC)
115 static x86_def_t x86_defs[] = {
120 .vendor1 = CPUID_VENDOR_AMD_1,
121 .vendor2 = CPUID_VENDOR_AMD_2,
122 .vendor3 = CPUID_VENDOR_AMD_3,
126 .features = PPRO_FEATURES |
127 /* these features are needed for Win64 and aren't fully implemented */
128 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
129 /* this feature is needed for Solaris and isn't fully implemented */
131 .ext_features = CPUID_EXT_SSE3,
132 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
133 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
134 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
135 .ext3_features = CPUID_EXT3_SVM,
136 .xlevel = 0x8000000A,
137 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
142 .vendor1 = CPUID_VENDOR_AMD_1,
143 .vendor2 = CPUID_VENDOR_AMD_2,
144 .vendor3 = CPUID_VENDOR_AMD_3,
148 /* Missing: CPUID_VME, CPUID_HT */
149 .features = PPRO_FEATURES |
150 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
152 /* Missing: CPUID_EXT_CX16, CPUID_EXT_POPCNT */
153 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
154 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
155 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
156 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
157 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_MMXEXT |
159 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
160 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
161 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
162 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
163 .ext3_features = CPUID_EXT3_SVM,
164 .xlevel = 0x8000001A,
165 .model_id = "AMD Phenom(tm) 9550 Quad-Core Processor"
173 /* The original CPU also implements these features:
174 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
175 CPUID_TM, CPUID_PBE */
176 .features = PPRO_FEATURES |
177 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
179 /* The original CPU also implements these ext features:
180 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
181 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
182 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3,
183 .ext2_features = CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
184 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
185 .xlevel = 0x80000008,
186 .model_id = "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
195 .features = PPRO_FEATURES,
196 .ext_features = CPUID_EXT_SSE3,
198 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
206 /* The original CPU also implements these features:
207 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
208 CPUID_TM, CPUID_PBE */
209 .features = PPRO_FEATURES | CPUID_VME |
210 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA,
211 /* The original CPU also implements these ext features:
212 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
214 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
215 .ext2_features = CPUID_EXT2_NX,
216 .xlevel = 0x80000008,
217 .model_id = "Genuine Intel(R) CPU T2600 @ 2.16GHz",
225 .features = I486_FEATURES,
234 .features = PENTIUM_FEATURES,
243 .features = PENTIUM2_FEATURES,
252 .features = PENTIUM3_FEATURES,
258 .vendor1 = 0x68747541, /* "Auth" */
259 .vendor2 = 0x69746e65, /* "enti" */
260 .vendor3 = 0x444d4163, /* "cAMD" */
264 .features = PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
265 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
266 .xlevel = 0x80000008,
267 /* XXX: put another string ? */
268 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
272 /* original is on level 10 */
277 .features = PPRO_FEATURES |
278 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_VME,
279 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
280 * CPUID_HT | CPUID_TM | CPUID_PBE */
281 /* Some CPUs got no CPUID_SEP */
282 .ext_features = CPUID_EXT_MONITOR |
283 CPUID_EXT_SSE3 /* PNI */ | CPUID_EXT_SSSE3,
284 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
285 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
286 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_NX,
287 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
288 .xlevel = 0x8000000A,
289 .model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
293 static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
298 char *s = strdup(cpu_model);
299 char *featurestr, *name = strtok(s, ",");
300 uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0;
301 uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0;
302 int family = -1, model = -1, stepping = -1;
305 for (i = 0; i < ARRAY_SIZE(x86_defs); i++) {
306 if (strcmp(name, x86_defs[i].name) == 0) {
313 memcpy(x86_cpu_def, def, sizeof(*def));
315 featurestr = strtok(NULL, ",");
319 if (featurestr[0] == '+') {
320 add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
321 } else if (featurestr[0] == '-') {
322 add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
323 } else if ((val = strchr(featurestr, '='))) {
325 if (!strcmp(featurestr, "family")) {
327 family = strtol(val, &err, 10);
328 if (!*val || *err || family < 0) {
329 fprintf(stderr, "bad numerical value %s\n", val);
332 x86_cpu_def->family = family;
333 } else if (!strcmp(featurestr, "model")) {
335 model = strtol(val, &err, 10);
336 if (!*val || *err || model < 0 || model > 0xff) {
337 fprintf(stderr, "bad numerical value %s\n", val);
340 x86_cpu_def->model = model;
341 } else if (!strcmp(featurestr, "stepping")) {
343 stepping = strtol(val, &err, 10);
344 if (!*val || *err || stepping < 0 || stepping > 0xf) {
345 fprintf(stderr, "bad numerical value %s\n", val);
348 x86_cpu_def->stepping = stepping;
349 } else if (!strcmp(featurestr, "vendor")) {
350 if (strlen(val) != 12) {
351 fprintf(stderr, "vendor string must be 12 chars long\n");
354 x86_cpu_def->vendor1 = 0;
355 x86_cpu_def->vendor2 = 0;
356 x86_cpu_def->vendor3 = 0;
357 for(i = 0; i < 4; i++) {
358 x86_cpu_def->vendor1 |= ((uint8_t)val[i ]) << (8 * i);
359 x86_cpu_def->vendor2 |= ((uint8_t)val[i + 4]) << (8 * i);
360 x86_cpu_def->vendor3 |= ((uint8_t)val[i + 8]) << (8 * i);
362 } else if (!strcmp(featurestr, "model_id")) {
363 pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
366 fprintf(stderr, "unrecognized feature %s\n", featurestr);
370 fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
373 featurestr = strtok(NULL, ",");
375 x86_cpu_def->features |= plus_features;
376 x86_cpu_def->ext_features |= plus_ext_features;
377 x86_cpu_def->ext2_features |= plus_ext2_features;
378 x86_cpu_def->ext3_features |= plus_ext3_features;
379 x86_cpu_def->features &= ~minus_features;
380 x86_cpu_def->ext_features &= ~minus_ext_features;
381 x86_cpu_def->ext2_features &= ~minus_ext2_features;
382 x86_cpu_def->ext3_features &= ~minus_ext3_features;
391 void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
395 for (i = 0; i < ARRAY_SIZE(x86_defs); i++)
396 (*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
399 static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
401 x86_def_t def1, *def = &def1;
403 if (cpu_x86_find_by_name(def, cpu_model) < 0)
406 env->cpuid_vendor1 = def->vendor1;
407 env->cpuid_vendor2 = def->vendor2;
408 env->cpuid_vendor3 = def->vendor3;
410 env->cpuid_vendor1 = CPUID_VENDOR_INTEL_1;
411 env->cpuid_vendor2 = CPUID_VENDOR_INTEL_2;
412 env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
414 env->cpuid_level = def->level;
415 if (def->family > 0x0f)
416 env->cpuid_version = 0xf00 | ((def->family - 0x0f) << 20);
418 env->cpuid_version = def->family << 8;
419 env->cpuid_version |= ((def->model & 0xf) << 4) | ((def->model >> 4) << 16);
420 env->cpuid_version |= def->stepping;
421 env->cpuid_features = def->features;
422 env->pat = 0x0007040600070406ULL;
423 env->cpuid_ext_features = def->ext_features;
424 env->cpuid_ext2_features = def->ext2_features;
425 env->cpuid_xlevel = def->xlevel;
426 env->cpuid_ext3_features = def->ext3_features;
428 const char *model_id = def->model_id;
432 len = strlen(model_id);
433 for(i = 0; i < 48; i++) {
437 c = (uint8_t)model_id[i];
438 env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
444 /* NOTE: must be called outside the CPU execute loop */
445 void cpu_reset(CPUX86State *env)
449 if (qemu_loglevel_mask(CPU_LOG_RESET)) {
450 qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
451 log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP);
454 memset(env, 0, offsetof(CPUX86State, breakpoints));
458 env->old_exception = -1;
460 /* init to reset state */
462 #ifdef CONFIG_SOFTMMU
463 env->hflags |= HF_SOFTMMU_MASK;
465 env->hflags2 |= HF2_GIF_MASK;
467 cpu_x86_update_cr0(env, 0x60000010);
468 env->a20_mask = ~0x0;
469 env->smbase = 0x30000;
471 env->idt.limit = 0xffff;
472 env->gdt.limit = 0xffff;
473 env->ldt.limit = 0xffff;
474 env->ldt.flags = DESC_P_MASK | (2 << DESC_TYPE_SHIFT);
475 env->tr.limit = 0xffff;
476 env->tr.flags = DESC_P_MASK | (11 << DESC_TYPE_SHIFT);
478 cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff,
479 DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK | DESC_R_MASK);
480 cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff,
481 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
482 cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff,
483 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
484 cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff,
485 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
486 cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff,
487 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
488 cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff,
489 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
492 env->regs[R_EDX] = env->cpuid_version;
497 for(i = 0;i < 8; i++)
503 memset(env->dr, 0, sizeof(env->dr));
504 env->dr[6] = DR6_FIXED_1;
505 env->dr[7] = DR7_FIXED_1;
506 cpu_breakpoint_remove_all(env, BP_CPU);
507 cpu_watchpoint_remove_all(env, BP_CPU);
510 void cpu_x86_close(CPUX86State *env)
515 /***********************************************************/
518 static const char *cc_op_str[] = {
573 void cpu_dump_state(CPUState *env, FILE *f,
574 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
579 static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
581 eflags = env->eflags;
583 if (env->hflags & HF_CS64_MASK) {
585 "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
586 "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
587 "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
588 "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
589 "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
607 eflags & DF_MASK ? 'D' : '-',
608 eflags & CC_O ? 'O' : '-',
609 eflags & CC_S ? 'S' : '-',
610 eflags & CC_Z ? 'Z' : '-',
611 eflags & CC_A ? 'A' : '-',
612 eflags & CC_P ? 'P' : '-',
613 eflags & CC_C ? 'C' : '-',
614 env->hflags & HF_CPL_MASK,
615 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
616 (int)(env->a20_mask >> 20) & 1,
617 (env->hflags >> HF_SMM_SHIFT) & 1,
622 cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
623 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
624 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
625 (uint32_t)env->regs[R_EAX],
626 (uint32_t)env->regs[R_EBX],
627 (uint32_t)env->regs[R_ECX],
628 (uint32_t)env->regs[R_EDX],
629 (uint32_t)env->regs[R_ESI],
630 (uint32_t)env->regs[R_EDI],
631 (uint32_t)env->regs[R_EBP],
632 (uint32_t)env->regs[R_ESP],
633 (uint32_t)env->eip, eflags,
634 eflags & DF_MASK ? 'D' : '-',
635 eflags & CC_O ? 'O' : '-',
636 eflags & CC_S ? 'S' : '-',
637 eflags & CC_Z ? 'Z' : '-',
638 eflags & CC_A ? 'A' : '-',
639 eflags & CC_P ? 'P' : '-',
640 eflags & CC_C ? 'C' : '-',
641 env->hflags & HF_CPL_MASK,
642 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
643 (int)(env->a20_mask >> 20) & 1,
644 (env->hflags >> HF_SMM_SHIFT) & 1,
649 if (env->hflags & HF_LMA_MASK) {
650 for(i = 0; i < 6; i++) {
651 SegmentCache *sc = &env->segs[i];
652 cpu_fprintf(f, "%s =%04x %016" PRIx64 " %08x %08x\n",
659 cpu_fprintf(f, "LDT=%04x %016" PRIx64 " %08x %08x\n",
664 cpu_fprintf(f, "TR =%04x %016" PRIx64 " %08x %08x\n",
669 cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
670 env->gdt.base, env->gdt.limit);
671 cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
672 env->idt.base, env->idt.limit);
673 cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
674 (uint32_t)env->cr[0],
677 (uint32_t)env->cr[4]);
678 for(i = 0; i < 4; i++)
679 cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
680 cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
681 env->dr[6], env->dr[7]);
685 for(i = 0; i < 6; i++) {
686 SegmentCache *sc = &env->segs[i];
687 cpu_fprintf(f, "%s =%04x %08x %08x %08x\n",
694 cpu_fprintf(f, "LDT=%04x %08x %08x %08x\n",
696 (uint32_t)env->ldt.base,
699 cpu_fprintf(f, "TR =%04x %08x %08x %08x\n",
701 (uint32_t)env->tr.base,
704 cpu_fprintf(f, "GDT= %08x %08x\n",
705 (uint32_t)env->gdt.base, env->gdt.limit);
706 cpu_fprintf(f, "IDT= %08x %08x\n",
707 (uint32_t)env->idt.base, env->idt.limit);
708 cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
709 (uint32_t)env->cr[0],
710 (uint32_t)env->cr[2],
711 (uint32_t)env->cr[3],
712 (uint32_t)env->cr[4]);
713 for(i = 0; i < 4; i++)
714 cpu_fprintf(f, "DR%d=%08x ", i, env->dr[i]);
715 cpu_fprintf(f, "\nDR6=%08x DR7=%08x\n", env->dr[6], env->dr[7]);
717 if (flags & X86_DUMP_CCOP) {
718 if ((unsigned)env->cc_op < CC_OP_NB)
719 snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
721 snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
723 if (env->hflags & HF_CS64_MASK) {
724 cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
725 env->cc_src, env->cc_dst,
730 cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
731 (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
735 if (flags & X86_DUMP_FPU) {
738 for(i = 0; i < 8; i++) {
739 fptag |= ((!env->fptags[i]) << i);
741 cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
743 (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
748 #if defined(USE_X86LDOUBLE)
756 tmp.d = env->fpregs[i].d;
757 cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
758 i, tmp.l.lower, tmp.l.upper);
760 cpu_fprintf(f, "FPR%d=%016" PRIx64,
761 i, env->fpregs[i].mmx.q);
764 cpu_fprintf(f, "\n");
768 if (env->hflags & HF_CS64_MASK)
773 cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
775 env->xmm_regs[i].XMM_L(3),
776 env->xmm_regs[i].XMM_L(2),
777 env->xmm_regs[i].XMM_L(1),
778 env->xmm_regs[i].XMM_L(0));
780 cpu_fprintf(f, "\n");
787 /***********************************************************/
789 /* XXX: add PGE support */
791 void cpu_x86_set_a20(CPUX86State *env, int a20_state)
793 a20_state = (a20_state != 0);
794 if (a20_state != ((env->a20_mask >> 20) & 1)) {
795 #if defined(DEBUG_MMU)
796 printf("A20 update: a20=%d\n", a20_state);
798 /* if the cpu is currently executing code, we must unlink it and
799 all the potentially executing TB */
800 cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
802 /* when a20 is changed, all the MMU mappings are invalid, so
803 we must flush everything */
805 env->a20_mask = (~0x100000) | (a20_state << 20);
809 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
813 #if defined(DEBUG_MMU)
814 printf("CR0 update: CR0=0x%08x\n", new_cr0);
816 if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
817 (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
822 if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
823 (env->efer & MSR_EFER_LME)) {
824 /* enter in long mode */
825 /* XXX: generate an exception */
826 if (!(env->cr[4] & CR4_PAE_MASK))
828 env->efer |= MSR_EFER_LMA;
829 env->hflags |= HF_LMA_MASK;
830 } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
831 (env->efer & MSR_EFER_LMA)) {
833 env->efer &= ~MSR_EFER_LMA;
834 env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
835 env->eip &= 0xffffffff;
838 env->cr[0] = new_cr0 | CR0_ET_MASK;
840 /* update PE flag in hidden flags */
841 pe_state = (env->cr[0] & CR0_PE_MASK);
842 env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
843 /* ensure that ADDSEG is always set in real mode */
844 env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
845 /* update FPU flags */
846 env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
847 ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
850 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
852 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
854 env->cr[3] = new_cr3;
855 if (env->cr[0] & CR0_PG_MASK) {
856 #if defined(DEBUG_MMU)
857 printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
863 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
865 #if defined(DEBUG_MMU)
866 printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
868 if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
869 (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
873 if (!(env->cpuid_features & CPUID_SSE))
874 new_cr4 &= ~CR4_OSFXSR_MASK;
875 if (new_cr4 & CR4_OSFXSR_MASK)
876 env->hflags |= HF_OSFXSR_MASK;
878 env->hflags &= ~HF_OSFXSR_MASK;
880 env->cr[4] = new_cr4;
883 #if defined(CONFIG_USER_ONLY)
885 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
886 int is_write, int mmu_idx, int is_softmmu)
888 /* user mode only emulation */
891 env->error_code = (is_write << PG_ERROR_W_BIT);
892 env->error_code |= PG_ERROR_U_MASK;
893 env->exception_index = EXCP0E_PAGE;
897 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
904 /* XXX: This value should match the one returned by CPUID
906 #if defined(USE_KQEMU)
907 #define PHYS_ADDR_MASK 0xfffff000LL
909 # if defined(TARGET_X86_64)
910 # define PHYS_ADDR_MASK 0xfffffff000LL
912 # define PHYS_ADDR_MASK 0xffffff000LL
917 -1 = cannot handle fault
918 0 = nothing more to do
919 1 = generate PF fault
920 2 = soft MMU activation required for this block
922 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
923 int is_write1, int mmu_idx, int is_softmmu)
926 target_ulong pde_addr, pte_addr;
927 int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
928 target_phys_addr_t paddr;
929 uint32_t page_offset;
930 target_ulong vaddr, virt_addr;
932 is_user = mmu_idx == MMU_USER_IDX;
933 #if defined(DEBUG_MMU)
934 printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
935 addr, is_write1, is_user, env->eip);
937 is_write = is_write1 & 1;
939 if (!(env->cr[0] & CR0_PG_MASK)) {
941 virt_addr = addr & TARGET_PAGE_MASK;
942 prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
947 if (env->cr[4] & CR4_PAE_MASK) {
949 target_ulong pdpe_addr;
952 if (env->hflags & HF_LMA_MASK) {
953 uint64_t pml4e_addr, pml4e;
956 /* test virtual address sign extension */
957 sext = (int64_t)addr >> 47;
958 if (sext != 0 && sext != -1) {
960 env->exception_index = EXCP0D_GPF;
964 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
966 pml4e = ldq_phys(pml4e_addr);
967 if (!(pml4e & PG_PRESENT_MASK)) {
971 if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
972 error_code = PG_ERROR_RSVD_MASK;
975 if (!(pml4e & PG_ACCESSED_MASK)) {
976 pml4e |= PG_ACCESSED_MASK;
977 stl_phys_notdirty(pml4e_addr, pml4e);
979 ptep = pml4e ^ PG_NX_MASK;
980 pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
982 pdpe = ldq_phys(pdpe_addr);
983 if (!(pdpe & PG_PRESENT_MASK)) {
987 if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
988 error_code = PG_ERROR_RSVD_MASK;
991 ptep &= pdpe ^ PG_NX_MASK;
992 if (!(pdpe & PG_ACCESSED_MASK)) {
993 pdpe |= PG_ACCESSED_MASK;
994 stl_phys_notdirty(pdpe_addr, pdpe);
999 /* XXX: load them when cr3 is loaded ? */
1000 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1002 pdpe = ldq_phys(pdpe_addr);
1003 if (!(pdpe & PG_PRESENT_MASK)) {
1007 ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
1010 pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
1012 pde = ldq_phys(pde_addr);
1013 if (!(pde & PG_PRESENT_MASK)) {
1017 if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
1018 error_code = PG_ERROR_RSVD_MASK;
1021 ptep &= pde ^ PG_NX_MASK;
1022 if (pde & PG_PSE_MASK) {
1024 page_size = 2048 * 1024;
1026 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1027 goto do_fault_protect;
1029 if (!(ptep & PG_USER_MASK))
1030 goto do_fault_protect;
1031 if (is_write && !(ptep & PG_RW_MASK))
1032 goto do_fault_protect;
1034 if ((env->cr[0] & CR0_WP_MASK) &&
1035 is_write && !(ptep & PG_RW_MASK))
1036 goto do_fault_protect;
1038 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1039 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1040 pde |= PG_ACCESSED_MASK;
1042 pde |= PG_DIRTY_MASK;
1043 stl_phys_notdirty(pde_addr, pde);
1045 /* align to page_size */
1046 pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
1047 virt_addr = addr & ~(page_size - 1);
1050 if (!(pde & PG_ACCESSED_MASK)) {
1051 pde |= PG_ACCESSED_MASK;
1052 stl_phys_notdirty(pde_addr, pde);
1054 pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
1056 pte = ldq_phys(pte_addr);
1057 if (!(pte & PG_PRESENT_MASK)) {
1061 if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
1062 error_code = PG_ERROR_RSVD_MASK;
1065 /* combine pde and pte nx, user and rw protections */
1066 ptep &= pte ^ PG_NX_MASK;
1068 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1069 goto do_fault_protect;
1071 if (!(ptep & PG_USER_MASK))
1072 goto do_fault_protect;
1073 if (is_write && !(ptep & PG_RW_MASK))
1074 goto do_fault_protect;
1076 if ((env->cr[0] & CR0_WP_MASK) &&
1077 is_write && !(ptep & PG_RW_MASK))
1078 goto do_fault_protect;
1080 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1081 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1082 pte |= PG_ACCESSED_MASK;
1084 pte |= PG_DIRTY_MASK;
1085 stl_phys_notdirty(pte_addr, pte);
1088 virt_addr = addr & ~0xfff;
1089 pte = pte & (PHYS_ADDR_MASK | 0xfff);
1094 /* page directory entry */
1095 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
1097 pde = ldl_phys(pde_addr);
1098 if (!(pde & PG_PRESENT_MASK)) {
1102 /* if PSE bit is set, then we use a 4MB page */
1103 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1104 page_size = 4096 * 1024;
1106 if (!(pde & PG_USER_MASK))
1107 goto do_fault_protect;
1108 if (is_write && !(pde & PG_RW_MASK))
1109 goto do_fault_protect;
1111 if ((env->cr[0] & CR0_WP_MASK) &&
1112 is_write && !(pde & PG_RW_MASK))
1113 goto do_fault_protect;
1115 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1116 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1117 pde |= PG_ACCESSED_MASK;
1119 pde |= PG_DIRTY_MASK;
1120 stl_phys_notdirty(pde_addr, pde);
1123 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1125 virt_addr = addr & ~(page_size - 1);
1127 if (!(pde & PG_ACCESSED_MASK)) {
1128 pde |= PG_ACCESSED_MASK;
1129 stl_phys_notdirty(pde_addr, pde);
1132 /* page directory entry */
1133 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
1135 pte = ldl_phys(pte_addr);
1136 if (!(pte & PG_PRESENT_MASK)) {
1140 /* combine pde and pte user and rw protections */
1143 if (!(ptep & PG_USER_MASK))
1144 goto do_fault_protect;
1145 if (is_write && !(ptep & PG_RW_MASK))
1146 goto do_fault_protect;
1148 if ((env->cr[0] & CR0_WP_MASK) &&
1149 is_write && !(ptep & PG_RW_MASK))
1150 goto do_fault_protect;
1152 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1153 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1154 pte |= PG_ACCESSED_MASK;
1156 pte |= PG_DIRTY_MASK;
1157 stl_phys_notdirty(pte_addr, pte);
1160 virt_addr = addr & ~0xfff;
1163 /* the page can be put in the TLB */
1165 if (!(ptep & PG_NX_MASK))
1167 if (pte & PG_DIRTY_MASK) {
1168 /* only set write access if already dirty... otherwise wait
1171 if (ptep & PG_RW_MASK)
1174 if (!(env->cr[0] & CR0_WP_MASK) ||
1175 (ptep & PG_RW_MASK))
1180 pte = pte & env->a20_mask;
1182 /* Even if 4MB pages, we map only one 4KB page in the cache to
1183 avoid filling it too fast */
1184 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1185 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1186 vaddr = virt_addr + page_offset;
1188 ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
1191 error_code = PG_ERROR_P_MASK;
1193 error_code |= (is_write << PG_ERROR_W_BIT);
1195 error_code |= PG_ERROR_U_MASK;
1196 if (is_write1 == 2 &&
1197 (env->efer & MSR_EFER_NXE) &&
1198 (env->cr[4] & CR4_PAE_MASK))
1199 error_code |= PG_ERROR_I_D_MASK;
1200 if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
1201 /* cr2 is not modified in case of exceptions */
1202 stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
1207 env->error_code = error_code;
1208 env->exception_index = EXCP0E_PAGE;
1212 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
1214 target_ulong pde_addr, pte_addr;
1216 target_phys_addr_t paddr;
1217 uint32_t page_offset;
1220 if (env->cr[4] & CR4_PAE_MASK) {
1221 target_ulong pdpe_addr;
1224 #ifdef TARGET_X86_64
1225 if (env->hflags & HF_LMA_MASK) {
1226 uint64_t pml4e_addr, pml4e;
1229 /* test virtual address sign extension */
1230 sext = (int64_t)addr >> 47;
1231 if (sext != 0 && sext != -1)
1234 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1236 pml4e = ldq_phys(pml4e_addr);
1237 if (!(pml4e & PG_PRESENT_MASK))
1240 pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
1242 pdpe = ldq_phys(pdpe_addr);
1243 if (!(pdpe & PG_PRESENT_MASK))
1248 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1250 pdpe = ldq_phys(pdpe_addr);
1251 if (!(pdpe & PG_PRESENT_MASK))
1255 pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
1257 pde = ldq_phys(pde_addr);
1258 if (!(pde & PG_PRESENT_MASK)) {
1261 if (pde & PG_PSE_MASK) {
1263 page_size = 2048 * 1024;
1264 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1267 pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
1270 pte = ldq_phys(pte_addr);
1272 if (!(pte & PG_PRESENT_MASK))
1277 if (!(env->cr[0] & CR0_PG_MASK)) {
1281 /* page directory entry */
1282 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
1283 pde = ldl_phys(pde_addr);
1284 if (!(pde & PG_PRESENT_MASK))
1286 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1287 pte = pde & ~0x003ff000; /* align to 4MB */
1288 page_size = 4096 * 1024;
1290 /* page directory entry */
1291 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
1292 pte = ldl_phys(pte_addr);
1293 if (!(pte & PG_PRESENT_MASK))
1298 pte = pte & env->a20_mask;
1301 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1302 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1306 void hw_breakpoint_insert(CPUState *env, int index)
1310 switch (hw_breakpoint_type(env->dr[7], index)) {
1312 if (hw_breakpoint_enabled(env->dr[7], index))
1313 err = cpu_breakpoint_insert(env, env->dr[index], BP_CPU,
1314 &env->cpu_breakpoint[index]);
1317 type = BP_CPU | BP_MEM_WRITE;
1320 /* No support for I/O watchpoints yet */
1323 type = BP_CPU | BP_MEM_ACCESS;
1325 err = cpu_watchpoint_insert(env, env->dr[index],
1326 hw_breakpoint_len(env->dr[7], index),
1327 type, &env->cpu_watchpoint[index]);
1331 env->cpu_breakpoint[index] = NULL;
1334 void hw_breakpoint_remove(CPUState *env, int index)
1336 if (!env->cpu_breakpoint[index])
1338 switch (hw_breakpoint_type(env->dr[7], index)) {
1340 if (hw_breakpoint_enabled(env->dr[7], index))
1341 cpu_breakpoint_remove_by_ref(env, env->cpu_breakpoint[index]);
1345 cpu_watchpoint_remove_by_ref(env, env->cpu_watchpoint[index]);
1348 /* No support for I/O watchpoints yet */
1353 int check_hw_breakpoints(CPUState *env, int force_dr6_update)
1357 int hit_enabled = 0;
1359 dr6 = env->dr[6] & ~0xf;
1360 for (reg = 0; reg < 4; reg++) {
1361 type = hw_breakpoint_type(env->dr[7], reg);
1362 if ((type == 0 && env->dr[reg] == env->eip) ||
1363 ((type & 1) && env->cpu_watchpoint[reg] &&
1364 (env->cpu_watchpoint[reg]->flags & BP_WATCHPOINT_HIT))) {
1366 if (hw_breakpoint_enabled(env->dr[7], reg))
1370 if (hit_enabled || force_dr6_update)
1375 static CPUDebugExcpHandler *prev_debug_excp_handler;
1377 void raise_exception(int exception_index);
1379 static void breakpoint_handler(CPUState *env)
1383 if (env->watchpoint_hit) {
1384 if (env->watchpoint_hit->flags & BP_CPU) {
1385 env->watchpoint_hit = NULL;
1386 if (check_hw_breakpoints(env, 0))
1387 raise_exception(EXCP01_DB);
1389 cpu_resume_from_signal(env, NULL);
1392 TAILQ_FOREACH(bp, &env->breakpoints, entry)
1393 if (bp->pc == env->eip) {
1394 if (bp->flags & BP_CPU) {
1395 check_hw_breakpoints(env, 1);
1396 raise_exception(EXCP01_DB);
1401 if (prev_debug_excp_handler)
1402 prev_debug_excp_handler(env);
1404 #endif /* !CONFIG_USER_ONLY */
1406 static void host_cpuid(uint32_t function, uint32_t *eax, uint32_t *ebx,
1407 uint32_t *ecx, uint32_t *edx)
1409 #if defined(CONFIG_KVM)
1413 asm volatile("cpuid"
1414 : "=a"(vec[0]), "=b"(vec[1]),
1415 "=c"(vec[2]), "=d"(vec[3])
1416 : "0"(function) : "cc");
1418 asm volatile("pusha \n\t"
1420 "mov %%eax, 0(%1) \n\t"
1421 "mov %%ebx, 4(%1) \n\t"
1422 "mov %%ecx, 8(%1) \n\t"
1423 "mov %%edx, 12(%1) \n\t"
1425 : : "a"(function), "S"(vec)
1440 void cpu_x86_cpuid(CPUX86State *env, uint32_t index,
1441 uint32_t *eax, uint32_t *ebx,
1442 uint32_t *ecx, uint32_t *edx)
1444 /* test if maximum index reached */
1445 if (index & 0x80000000) {
1446 if (index > env->cpuid_xlevel)
1447 index = env->cpuid_level;
1449 if (index > env->cpuid_level)
1450 index = env->cpuid_level;
1455 *eax = env->cpuid_level;
1456 *ebx = env->cpuid_vendor1;
1457 *edx = env->cpuid_vendor2;
1458 *ecx = env->cpuid_vendor3;
1460 /* sysenter isn't supported on compatibility mode on AMD. and syscall
1461 * isn't supported in compatibility mode on Intel. so advertise the
1462 * actuall cpu, and say goodbye to migration between different vendors
1463 * is you use compatibility mode. */
1465 host_cpuid(0, NULL, ebx, ecx, edx);
1468 *eax = env->cpuid_version;
1469 *ebx = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1470 *ecx = env->cpuid_ext_features;
1471 *edx = env->cpuid_features;
1473 /* "Hypervisor present" bit required for Microsoft SVVP */
1478 /* cache info: needed for Pentium Pro compatibility */
1485 /* cache info: needed for Core compatibility */
1487 case 0: /* L1 dcache info */
1493 case 1: /* L1 icache info */
1499 case 2: /* L2 cache info */
1505 default: /* end of info */
1515 /* mwait info: needed for Core compatibility */
1516 *eax = 0; /* Smallest monitor-line size in bytes */
1517 *ebx = 0; /* Largest monitor-line size in bytes */
1518 *ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
1522 /* Thermal and Power Leaf */
1529 /* Direct Cache Access Information Leaf */
1530 *eax = 0; /* Bits 0-31 in DCA_CAP MSR */
1536 /* Architectural Performance Monitoring Leaf */
1543 *eax = env->cpuid_xlevel;
1544 *ebx = env->cpuid_vendor1;
1545 *edx = env->cpuid_vendor2;
1546 *ecx = env->cpuid_vendor3;
1549 *eax = env->cpuid_features;
1551 *ecx = env->cpuid_ext3_features;
1552 *edx = env->cpuid_ext2_features;
1554 if (kvm_enabled()) {
1555 uint32_t h_eax, h_edx;
1557 host_cpuid(0x80000001, &h_eax, NULL, NULL, &h_edx);
1559 /* disable CPU features that the host does not support */
1562 if ((h_edx & 0x20000000) == 0 /* || !lm_capable_kernel */)
1563 *edx &= ~0x20000000;
1565 if ((h_edx & 0x00000800) == 0)
1566 *edx &= ~0x00000800;
1568 if ((h_edx & 0x00100000) == 0)
1569 *edx &= ~0x00100000;
1571 /* disable CPU features that KVM cannot support */
1576 *edx &= ~0xc0000000;
1582 *eax = env->cpuid_model[(index - 0x80000002) * 4 + 0];
1583 *ebx = env->cpuid_model[(index - 0x80000002) * 4 + 1];
1584 *ecx = env->cpuid_model[(index - 0x80000002) * 4 + 2];
1585 *edx = env->cpuid_model[(index - 0x80000002) * 4 + 3];
1588 /* cache info (L1 cache) */
1595 /* cache info (L2 cache) */
1602 /* virtual & phys address size in low 2 bytes. */
1603 /* XXX: This value must match the one used in the MMU code. */
1604 if (env->cpuid_ext2_features & CPUID_EXT2_LM) {
1605 /* 64 bit processor */
1606 #if defined(USE_KQEMU)
1607 *eax = 0x00003020; /* 48 bits virtual, 32 bits physical */
1609 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1610 *eax = 0x00003028; /* 48 bits virtual, 40 bits physical */
1613 #if defined(USE_KQEMU)
1614 *eax = 0x00000020; /* 32 bits physical */
1616 if (env->cpuid_features & CPUID_PSE36)
1617 *eax = 0x00000024; /* 36 bits physical */
1619 *eax = 0x00000020; /* 32 bits physical */
1627 *eax = 0x00000001; /* SVM Revision */
1628 *ebx = 0x00000010; /* nr of ASIDs */
1630 *edx = 0; /* optional features */
1633 /* reserved values: zero */
1642 CPUX86State *cpu_x86_init(const char *cpu_model)
1647 env = qemu_mallocz(sizeof(CPUX86State));
1651 env->cpu_model_str = cpu_model;
1653 /* init various static tables */
1656 optimize_flags_init();
1657 #ifndef CONFIG_USER_ONLY
1658 prev_debug_excp_handler =
1659 cpu_set_debug_excp_handler(breakpoint_handler);
1662 if (cpu_x86_register(env, cpu_model) < 0) {