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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31 #include "qemu-common.h"
36 static int cpu_x86_register (CPUX86State *env, const char *cpu_model);
38 static void add_flagname_to_bitmaps(char *flagname, uint32_t *features,
39 uint32_t *ext_features,
40 uint32_t *ext2_features,
41 uint32_t *ext3_features)
44 /* feature flags taken from "Intel Processor Identification and the CPUID
45 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
46 * about feature names, the Linux name is used. */
47 static const char *feature_name[] = {
48 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
49 "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
50 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL, "ds" /* Intel dts */, "acpi", "mmx",
51 "fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe",
53 static const char *ext_feature_name[] = {
54 "pni" /* Intel,AMD sse3 */, NULL, NULL, "monitor", "ds_cpl", "vmx", NULL /* Linux smx */, "est",
55 "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
56 NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
57 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
59 static const char *ext2_feature_name[] = {
60 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
61 "cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall", "mttr", "pge", "mca", "cmov",
62 "pat", "pse36", NULL, NULL /* Linux mp */, "nx" /* Intel xd */, NULL, "mmxext", "mmx",
63 "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow",
65 static const char *ext3_feature_name[] = {
66 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
67 "3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL, "skinit", "wdt", NULL, NULL,
68 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
69 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
72 for ( i = 0 ; i < 32 ; i++ )
73 if (feature_name[i] && !strcmp (flagname, feature_name[i])) {
77 for ( i = 0 ; i < 32 ; i++ )
78 if (ext_feature_name[i] && !strcmp (flagname, ext_feature_name[i])) {
79 *ext_features |= 1 << i;
82 for ( i = 0 ; i < 32 ; i++ )
83 if (ext2_feature_name[i] && !strcmp (flagname, ext2_feature_name[i])) {
84 *ext2_features |= 1 << i;
87 for ( i = 0 ; i < 32 ; i++ )
88 if (ext3_feature_name[i] && !strcmp (flagname, ext3_feature_name[i])) {
89 *ext3_features |= 1 << i;
92 fprintf(stderr, "CPU feature %s not found\n", flagname);
95 CPUX86State *cpu_x86_init(const char *cpu_model)
100 env = qemu_mallocz(sizeof(CPUX86State));
104 env->cpu_model_str = cpu_model;
106 /* init various static tables */
109 optimize_flags_init();
111 if (cpu_x86_register(env, cpu_model) < 0) {
124 typedef struct x86_def_t {
127 uint32_t vendor1, vendor2, vendor3;
131 uint32_t features, ext_features, ext2_features, ext3_features;
136 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
137 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
138 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX)
139 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
140 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
141 CPUID_PSE36 | CPUID_FXSR)
142 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
143 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
144 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
145 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
146 CPUID_PAE | CPUID_SEP | CPUID_APIC)
147 static x86_def_t x86_defs[] = {
152 .vendor1 = CPUID_VENDOR_AMD_1,
153 .vendor2 = CPUID_VENDOR_AMD_2,
154 .vendor3 = CPUID_VENDOR_AMD_3,
158 .features = PPRO_FEATURES |
159 /* these features are needed for Win64 and aren't fully implemented */
160 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
161 /* this feature is needed for Solaris and isn't fully implemented */
163 .ext_features = CPUID_EXT_SSE3,
164 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
165 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
166 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
167 .ext3_features = CPUID_EXT3_SVM,
168 .xlevel = 0x8000000A,
169 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
177 /* The original CPU also implements these features:
178 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
179 CPUID_TM, CPUID_PBE */
180 .features = PPRO_FEATURES |
181 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
183 /* The original CPU also implements these ext features:
184 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
185 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
186 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3,
187 .ext2_features = CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
188 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
189 .xlevel = 0x80000008,
190 .model_id = "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
199 .features = PPRO_FEATURES,
200 .ext_features = CPUID_EXT_SSE3,
202 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
210 /* The original CPU also implements these features:
211 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
212 CPUID_TM, CPUID_PBE */
213 .features = PPRO_FEATURES | CPUID_VME |
214 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA,
215 /* The original CPU also implements these ext features:
216 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
218 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
219 .ext2_features = CPUID_EXT2_NX,
220 .xlevel = 0x80000008,
221 .model_id = "Genuine Intel(R) CPU T2600 @ 2.16GHz",
229 .features = I486_FEATURES,
238 .features = PENTIUM_FEATURES,
247 .features = PENTIUM2_FEATURES,
256 .features = PENTIUM3_FEATURES,
262 .vendor1 = 0x68747541, /* "Auth" */
263 .vendor2 = 0x69746e65, /* "enti" */
264 .vendor3 = 0x444d4163, /* "cAMD" */
268 .features = PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
269 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
270 .xlevel = 0x80000008,
271 /* XXX: put another string ? */
272 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
276 /* original is on level 10 */
281 .features = PPRO_FEATURES |
282 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_VME,
283 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
284 * CPUID_HT | CPUID_TM | CPUID_PBE */
285 /* Some CPUs got no CPUID_SEP */
286 .ext_features = CPUID_EXT_MONITOR |
287 CPUID_EXT_SSE3 /* PNI */ | CPUID_EXT_SSSE3,
288 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
289 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
290 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_NX,
291 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
292 .xlevel = 0x8000000A,
293 .model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
297 static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
302 char *s = strdup(cpu_model);
303 char *featurestr, *name = strtok(s, ",");
304 uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0;
305 uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0;
306 int family = -1, model = -1, stepping = -1;
309 for (i = 0; i < sizeof(x86_defs) / sizeof(x86_def_t); i++) {
310 if (strcmp(name, x86_defs[i].name) == 0) {
317 memcpy(x86_cpu_def, def, sizeof(*def));
319 featurestr = strtok(NULL, ",");
323 if (featurestr[0] == '+') {
324 add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
325 } else if (featurestr[0] == '-') {
326 add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
327 } else if ((val = strchr(featurestr, '='))) {
329 if (!strcmp(featurestr, "family")) {
331 family = strtol(val, &err, 10);
332 if (!*val || *err || family < 0) {
333 fprintf(stderr, "bad numerical value %s\n", val);
336 x86_cpu_def->family = family;
337 } else if (!strcmp(featurestr, "model")) {
339 model = strtol(val, &err, 10);
340 if (!*val || *err || model < 0 || model > 0xff) {
341 fprintf(stderr, "bad numerical value %s\n", val);
344 x86_cpu_def->model = model;
345 } else if (!strcmp(featurestr, "stepping")) {
347 stepping = strtol(val, &err, 10);
348 if (!*val || *err || stepping < 0 || stepping > 0xf) {
349 fprintf(stderr, "bad numerical value %s\n", val);
352 x86_cpu_def->stepping = stepping;
353 } else if (!strcmp(featurestr, "vendor")) {
354 if (strlen(val) != 12) {
355 fprintf(stderr, "vendor string must be 12 chars long\n");
358 x86_cpu_def->vendor1 = 0;
359 x86_cpu_def->vendor2 = 0;
360 x86_cpu_def->vendor3 = 0;
361 for(i = 0; i < 4; i++) {
362 x86_cpu_def->vendor1 |= ((uint8_t)val[i ]) << (8 * i);
363 x86_cpu_def->vendor2 |= ((uint8_t)val[i + 4]) << (8 * i);
364 x86_cpu_def->vendor3 |= ((uint8_t)val[i + 8]) << (8 * i);
366 } else if (!strcmp(featurestr, "model_id")) {
367 pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
370 fprintf(stderr, "unrecognized feature %s\n", featurestr);
374 fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
377 featurestr = strtok(NULL, ",");
379 x86_cpu_def->features |= plus_features;
380 x86_cpu_def->ext_features |= plus_ext_features;
381 x86_cpu_def->ext2_features |= plus_ext2_features;
382 x86_cpu_def->ext3_features |= plus_ext3_features;
383 x86_cpu_def->features &= ~minus_features;
384 x86_cpu_def->ext_features &= ~minus_ext_features;
385 x86_cpu_def->ext2_features &= ~minus_ext2_features;
386 x86_cpu_def->ext3_features &= ~minus_ext3_features;
395 void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
399 for (i = 0; i < sizeof(x86_defs) / sizeof(x86_def_t); i++)
400 (*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
403 static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
405 x86_def_t def1, *def = &def1;
407 if (cpu_x86_find_by_name(def, cpu_model) < 0)
410 env->cpuid_vendor1 = def->vendor1;
411 env->cpuid_vendor2 = def->vendor2;
412 env->cpuid_vendor3 = def->vendor3;
414 env->cpuid_vendor1 = CPUID_VENDOR_INTEL_1;
415 env->cpuid_vendor2 = CPUID_VENDOR_INTEL_2;
416 env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
418 env->cpuid_level = def->level;
419 if (def->family > 0x0f)
420 env->cpuid_version = 0xf00 | ((def->family - 0x0f) << 20);
422 env->cpuid_version = def->family << 8;
423 env->cpuid_version |= ((def->model & 0xf) << 4) | ((def->model >> 4) << 16);
424 env->cpuid_version |= def->stepping;
425 env->cpuid_features = def->features;
426 env->pat = 0x0007040600070406ULL;
427 env->cpuid_ext_features = def->ext_features;
428 env->cpuid_ext2_features = def->ext2_features;
429 env->cpuid_xlevel = def->xlevel;
430 env->cpuid_ext3_features = def->ext3_features;
432 const char *model_id = def->model_id;
436 len = strlen(model_id);
437 for(i = 0; i < 48; i++) {
441 c = (uint8_t)model_id[i];
442 env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
448 /* NOTE: must be called outside the CPU execute loop */
449 void cpu_reset(CPUX86State *env)
453 memset(env, 0, offsetof(CPUX86State, breakpoints));
457 env->old_exception = -1;
459 /* init to reset state */
461 #ifdef CONFIG_SOFTMMU
462 env->hflags |= HF_SOFTMMU_MASK;
464 env->hflags2 |= HF2_GIF_MASK;
466 cpu_x86_update_cr0(env, 0x60000010);
467 env->a20_mask = ~0x0;
468 env->smbase = 0x30000;
470 env->idt.limit = 0xffff;
471 env->gdt.limit = 0xffff;
472 env->ldt.limit = 0xffff;
473 env->ldt.flags = DESC_P_MASK | (2 << DESC_TYPE_SHIFT);
474 env->tr.limit = 0xffff;
475 env->tr.flags = DESC_P_MASK | (11 << DESC_TYPE_SHIFT);
477 cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff,
478 DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK | DESC_R_MASK);
479 cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff,
480 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
481 cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff,
482 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
483 cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff,
484 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
485 cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff,
486 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
487 cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff,
488 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK);
491 env->regs[R_EDX] = env->cpuid_version;
496 for(i = 0;i < 8; i++)
503 void cpu_x86_close(CPUX86State *env)
508 /***********************************************************/
511 static const char *cc_op_str[] = {
566 void cpu_dump_state(CPUState *env, FILE *f,
567 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
572 static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
574 eflags = env->eflags;
576 if (env->hflags & HF_CS64_MASK) {
578 "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
579 "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
580 "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
581 "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
582 "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
600 eflags & DF_MASK ? 'D' : '-',
601 eflags & CC_O ? 'O' : '-',
602 eflags & CC_S ? 'S' : '-',
603 eflags & CC_Z ? 'Z' : '-',
604 eflags & CC_A ? 'A' : '-',
605 eflags & CC_P ? 'P' : '-',
606 eflags & CC_C ? 'C' : '-',
607 env->hflags & HF_CPL_MASK,
608 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
609 (int)(env->a20_mask >> 20) & 1,
610 (env->hflags >> HF_SMM_SHIFT) & 1,
615 cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
616 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
617 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
618 (uint32_t)env->regs[R_EAX],
619 (uint32_t)env->regs[R_EBX],
620 (uint32_t)env->regs[R_ECX],
621 (uint32_t)env->regs[R_EDX],
622 (uint32_t)env->regs[R_ESI],
623 (uint32_t)env->regs[R_EDI],
624 (uint32_t)env->regs[R_EBP],
625 (uint32_t)env->regs[R_ESP],
626 (uint32_t)env->eip, eflags,
627 eflags & DF_MASK ? 'D' : '-',
628 eflags & CC_O ? 'O' : '-',
629 eflags & CC_S ? 'S' : '-',
630 eflags & CC_Z ? 'Z' : '-',
631 eflags & CC_A ? 'A' : '-',
632 eflags & CC_P ? 'P' : '-',
633 eflags & CC_C ? 'C' : '-',
634 env->hflags & HF_CPL_MASK,
635 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
636 (int)(env->a20_mask >> 20) & 1,
637 (env->hflags >> HF_SMM_SHIFT) & 1,
642 if (env->hflags & HF_LMA_MASK) {
643 for(i = 0; i < 6; i++) {
644 SegmentCache *sc = &env->segs[i];
645 cpu_fprintf(f, "%s =%04x %016" PRIx64 " %08x %08x\n",
652 cpu_fprintf(f, "LDT=%04x %016" PRIx64 " %08x %08x\n",
657 cpu_fprintf(f, "TR =%04x %016" PRIx64 " %08x %08x\n",
662 cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
663 env->gdt.base, env->gdt.limit);
664 cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
665 env->idt.base, env->idt.limit);
666 cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
667 (uint32_t)env->cr[0],
670 (uint32_t)env->cr[4]);
674 for(i = 0; i < 6; i++) {
675 SegmentCache *sc = &env->segs[i];
676 cpu_fprintf(f, "%s =%04x %08x %08x %08x\n",
683 cpu_fprintf(f, "LDT=%04x %08x %08x %08x\n",
685 (uint32_t)env->ldt.base,
688 cpu_fprintf(f, "TR =%04x %08x %08x %08x\n",
690 (uint32_t)env->tr.base,
693 cpu_fprintf(f, "GDT= %08x %08x\n",
694 (uint32_t)env->gdt.base, env->gdt.limit);
695 cpu_fprintf(f, "IDT= %08x %08x\n",
696 (uint32_t)env->idt.base, env->idt.limit);
697 cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
698 (uint32_t)env->cr[0],
699 (uint32_t)env->cr[2],
700 (uint32_t)env->cr[3],
701 (uint32_t)env->cr[4]);
703 if (flags & X86_DUMP_CCOP) {
704 if ((unsigned)env->cc_op < CC_OP_NB)
705 snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
707 snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
709 if (env->hflags & HF_CS64_MASK) {
710 cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
711 env->cc_src, env->cc_dst,
716 cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
717 (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
721 if (flags & X86_DUMP_FPU) {
724 for(i = 0; i < 8; i++) {
725 fptag |= ((!env->fptags[i]) << i);
727 cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
729 (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
734 #if defined(USE_X86LDOUBLE)
742 tmp.d = env->fpregs[i].d;
743 cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
744 i, tmp.l.lower, tmp.l.upper);
746 cpu_fprintf(f, "FPR%d=%016" PRIx64,
747 i, env->fpregs[i].mmx.q);
750 cpu_fprintf(f, "\n");
754 if (env->hflags & HF_CS64_MASK)
759 cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
761 env->xmm_regs[i].XMM_L(3),
762 env->xmm_regs[i].XMM_L(2),
763 env->xmm_regs[i].XMM_L(1),
764 env->xmm_regs[i].XMM_L(0));
766 cpu_fprintf(f, "\n");
773 /***********************************************************/
775 /* XXX: add PGE support */
777 void cpu_x86_set_a20(CPUX86State *env, int a20_state)
779 a20_state = (a20_state != 0);
780 if (a20_state != ((env->a20_mask >> 20) & 1)) {
781 #if defined(DEBUG_MMU)
782 printf("A20 update: a20=%d\n", a20_state);
784 /* if the cpu is currently executing code, we must unlink it and
785 all the potentially executing TB */
786 cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
788 /* when a20 is changed, all the MMU mappings are invalid, so
789 we must flush everything */
791 env->a20_mask = (~0x100000) | (a20_state << 20);
795 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
799 #if defined(DEBUG_MMU)
800 printf("CR0 update: CR0=0x%08x\n", new_cr0);
802 if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
803 (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
808 if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
809 (env->efer & MSR_EFER_LME)) {
810 /* enter in long mode */
811 /* XXX: generate an exception */
812 if (!(env->cr[4] & CR4_PAE_MASK))
814 env->efer |= MSR_EFER_LMA;
815 env->hflags |= HF_LMA_MASK;
816 } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
817 (env->efer & MSR_EFER_LMA)) {
819 env->efer &= ~MSR_EFER_LMA;
820 env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
821 env->eip &= 0xffffffff;
824 env->cr[0] = new_cr0 | CR0_ET_MASK;
826 /* update PE flag in hidden flags */
827 pe_state = (env->cr[0] & CR0_PE_MASK);
828 env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
829 /* ensure that ADDSEG is always set in real mode */
830 env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
831 /* update FPU flags */
832 env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
833 ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
836 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
838 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
840 env->cr[3] = new_cr3;
841 if (env->cr[0] & CR0_PG_MASK) {
842 #if defined(DEBUG_MMU)
843 printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
849 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
851 #if defined(DEBUG_MMU)
852 printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
854 if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
855 (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
859 if (!(env->cpuid_features & CPUID_SSE))
860 new_cr4 &= ~CR4_OSFXSR_MASK;
861 if (new_cr4 & CR4_OSFXSR_MASK)
862 env->hflags |= HF_OSFXSR_MASK;
864 env->hflags &= ~HF_OSFXSR_MASK;
866 env->cr[4] = new_cr4;
869 /* XXX: also flush 4MB pages */
870 void cpu_x86_flush_tlb(CPUX86State *env, target_ulong addr)
872 tlb_flush_page(env, addr);
875 #if defined(CONFIG_USER_ONLY)
877 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
878 int is_write, int mmu_idx, int is_softmmu)
880 /* user mode only emulation */
883 env->error_code = (is_write << PG_ERROR_W_BIT);
884 env->error_code |= PG_ERROR_U_MASK;
885 env->exception_index = EXCP0E_PAGE;
889 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
896 /* XXX: This value should match the one returned by CPUID
898 #if defined(USE_KQEMU)
899 #define PHYS_ADDR_MASK 0xfffff000LL
901 # if defined(TARGET_X86_64)
902 # define PHYS_ADDR_MASK 0xfffffff000LL
904 # define PHYS_ADDR_MASK 0xffffff000LL
909 -1 = cannot handle fault
910 0 = nothing more to do
911 1 = generate PF fault
912 2 = soft MMU activation required for this block
914 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
915 int is_write1, int mmu_idx, int is_softmmu)
918 target_ulong pde_addr, pte_addr;
919 int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
920 target_phys_addr_t paddr;
921 uint32_t page_offset;
922 target_ulong vaddr, virt_addr;
924 is_user = mmu_idx == MMU_USER_IDX;
925 #if defined(DEBUG_MMU)
926 printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
927 addr, is_write1, is_user, env->eip);
929 is_write = is_write1 & 1;
931 if (!(env->cr[0] & CR0_PG_MASK)) {
933 virt_addr = addr & TARGET_PAGE_MASK;
934 prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
939 if (env->cr[4] & CR4_PAE_MASK) {
941 target_ulong pdpe_addr;
944 if (env->hflags & HF_LMA_MASK) {
945 uint64_t pml4e_addr, pml4e;
948 /* test virtual address sign extension */
949 sext = (int64_t)addr >> 47;
950 if (sext != 0 && sext != -1) {
952 env->exception_index = EXCP0D_GPF;
956 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
958 pml4e = ldq_phys(pml4e_addr);
959 if (!(pml4e & PG_PRESENT_MASK)) {
963 if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
964 error_code = PG_ERROR_RSVD_MASK;
967 if (!(pml4e & PG_ACCESSED_MASK)) {
968 pml4e |= PG_ACCESSED_MASK;
969 stl_phys_notdirty(pml4e_addr, pml4e);
971 ptep = pml4e ^ PG_NX_MASK;
972 pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
974 pdpe = ldq_phys(pdpe_addr);
975 if (!(pdpe & PG_PRESENT_MASK)) {
979 if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
980 error_code = PG_ERROR_RSVD_MASK;
983 ptep &= pdpe ^ PG_NX_MASK;
984 if (!(pdpe & PG_ACCESSED_MASK)) {
985 pdpe |= PG_ACCESSED_MASK;
986 stl_phys_notdirty(pdpe_addr, pdpe);
991 /* XXX: load them when cr3 is loaded ? */
992 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
994 pdpe = ldq_phys(pdpe_addr);
995 if (!(pdpe & PG_PRESENT_MASK)) {
999 ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
1002 pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
1004 pde = ldq_phys(pde_addr);
1005 if (!(pde & PG_PRESENT_MASK)) {
1009 if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
1010 error_code = PG_ERROR_RSVD_MASK;
1013 ptep &= pde ^ PG_NX_MASK;
1014 if (pde & PG_PSE_MASK) {
1016 page_size = 2048 * 1024;
1018 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1019 goto do_fault_protect;
1021 if (!(ptep & PG_USER_MASK))
1022 goto do_fault_protect;
1023 if (is_write && !(ptep & PG_RW_MASK))
1024 goto do_fault_protect;
1026 if ((env->cr[0] & CR0_WP_MASK) &&
1027 is_write && !(ptep & PG_RW_MASK))
1028 goto do_fault_protect;
1030 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1031 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1032 pde |= PG_ACCESSED_MASK;
1034 pde |= PG_DIRTY_MASK;
1035 stl_phys_notdirty(pde_addr, pde);
1037 /* align to page_size */
1038 pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
1039 virt_addr = addr & ~(page_size - 1);
1042 if (!(pde & PG_ACCESSED_MASK)) {
1043 pde |= PG_ACCESSED_MASK;
1044 stl_phys_notdirty(pde_addr, pde);
1046 pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
1048 pte = ldq_phys(pte_addr);
1049 if (!(pte & PG_PRESENT_MASK)) {
1053 if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
1054 error_code = PG_ERROR_RSVD_MASK;
1057 /* combine pde and pte nx, user and rw protections */
1058 ptep &= pte ^ PG_NX_MASK;
1060 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1061 goto do_fault_protect;
1063 if (!(ptep & PG_USER_MASK))
1064 goto do_fault_protect;
1065 if (is_write && !(ptep & PG_RW_MASK))
1066 goto do_fault_protect;
1068 if ((env->cr[0] & CR0_WP_MASK) &&
1069 is_write && !(ptep & PG_RW_MASK))
1070 goto do_fault_protect;
1072 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1073 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1074 pte |= PG_ACCESSED_MASK;
1076 pte |= PG_DIRTY_MASK;
1077 stl_phys_notdirty(pte_addr, pte);
1080 virt_addr = addr & ~0xfff;
1081 pte = pte & (PHYS_ADDR_MASK | 0xfff);
1086 /* page directory entry */
1087 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
1089 pde = ldl_phys(pde_addr);
1090 if (!(pde & PG_PRESENT_MASK)) {
1094 /* if PSE bit is set, then we use a 4MB page */
1095 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1096 page_size = 4096 * 1024;
1098 if (!(pde & PG_USER_MASK))
1099 goto do_fault_protect;
1100 if (is_write && !(pde & PG_RW_MASK))
1101 goto do_fault_protect;
1103 if ((env->cr[0] & CR0_WP_MASK) &&
1104 is_write && !(pde & PG_RW_MASK))
1105 goto do_fault_protect;
1107 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1108 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1109 pde |= PG_ACCESSED_MASK;
1111 pde |= PG_DIRTY_MASK;
1112 stl_phys_notdirty(pde_addr, pde);
1115 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1117 virt_addr = addr & ~(page_size - 1);
1119 if (!(pde & PG_ACCESSED_MASK)) {
1120 pde |= PG_ACCESSED_MASK;
1121 stl_phys_notdirty(pde_addr, pde);
1124 /* page directory entry */
1125 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
1127 pte = ldl_phys(pte_addr);
1128 if (!(pte & PG_PRESENT_MASK)) {
1132 /* combine pde and pte user and rw protections */
1135 if (!(ptep & PG_USER_MASK))
1136 goto do_fault_protect;
1137 if (is_write && !(ptep & PG_RW_MASK))
1138 goto do_fault_protect;
1140 if ((env->cr[0] & CR0_WP_MASK) &&
1141 is_write && !(ptep & PG_RW_MASK))
1142 goto do_fault_protect;
1144 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1145 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1146 pte |= PG_ACCESSED_MASK;
1148 pte |= PG_DIRTY_MASK;
1149 stl_phys_notdirty(pte_addr, pte);
1152 virt_addr = addr & ~0xfff;
1155 /* the page can be put in the TLB */
1157 if (!(ptep & PG_NX_MASK))
1159 if (pte & PG_DIRTY_MASK) {
1160 /* only set write access if already dirty... otherwise wait
1163 if (ptep & PG_RW_MASK)
1166 if (!(env->cr[0] & CR0_WP_MASK) ||
1167 (ptep & PG_RW_MASK))
1172 pte = pte & env->a20_mask;
1174 /* Even if 4MB pages, we map only one 4KB page in the cache to
1175 avoid filling it too fast */
1176 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1177 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1178 vaddr = virt_addr + page_offset;
1180 ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
1183 error_code = PG_ERROR_P_MASK;
1185 error_code |= (is_write << PG_ERROR_W_BIT);
1187 error_code |= PG_ERROR_U_MASK;
1188 if (is_write1 == 2 &&
1189 (env->efer & MSR_EFER_NXE) &&
1190 (env->cr[4] & CR4_PAE_MASK))
1191 error_code |= PG_ERROR_I_D_MASK;
1192 if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
1193 /* cr2 is not modified in case of exceptions */
1194 stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
1199 env->error_code = error_code;
1200 env->exception_index = EXCP0E_PAGE;
1204 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
1206 target_ulong pde_addr, pte_addr;
1208 target_phys_addr_t paddr;
1209 uint32_t page_offset;
1212 if (env->cr[4] & CR4_PAE_MASK) {
1213 target_ulong pdpe_addr;
1216 #ifdef TARGET_X86_64
1217 if (env->hflags & HF_LMA_MASK) {
1218 uint64_t pml4e_addr, pml4e;
1221 /* test virtual address sign extension */
1222 sext = (int64_t)addr >> 47;
1223 if (sext != 0 && sext != -1)
1226 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1228 pml4e = ldq_phys(pml4e_addr);
1229 if (!(pml4e & PG_PRESENT_MASK))
1232 pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
1234 pdpe = ldq_phys(pdpe_addr);
1235 if (!(pdpe & PG_PRESENT_MASK))
1240 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1242 pdpe = ldq_phys(pdpe_addr);
1243 if (!(pdpe & PG_PRESENT_MASK))
1247 pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
1249 pde = ldq_phys(pde_addr);
1250 if (!(pde & PG_PRESENT_MASK)) {
1253 if (pde & PG_PSE_MASK) {
1255 page_size = 2048 * 1024;
1256 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1259 pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
1262 pte = ldq_phys(pte_addr);
1264 if (!(pte & PG_PRESENT_MASK))
1269 if (!(env->cr[0] & CR0_PG_MASK)) {
1273 /* page directory entry */
1274 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
1275 pde = ldl_phys(pde_addr);
1276 if (!(pde & PG_PRESENT_MASK))
1278 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1279 pte = pde & ~0x003ff000; /* align to 4MB */
1280 page_size = 4096 * 1024;
1282 /* page directory entry */
1283 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
1284 pte = ldl_phys(pte_addr);
1285 if (!(pte & PG_PRESENT_MASK))
1290 pte = pte & env->a20_mask;
1293 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1294 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1297 #endif /* !CONFIG_USER_ONLY */
1299 static void host_cpuid(uint32_t function, uint32_t *eax, uint32_t *ebx,
1300 uint32_t *ecx, uint32_t *edx)
1302 #if defined(CONFIG_KVM)
1306 asm volatile("cpuid"
1307 : "=a"(vec[0]), "=b"(vec[1]),
1308 "=c"(vec[2]), "=d"(vec[3])
1309 : "0"(function) : "cc");
1311 asm volatile("pusha \n\t"
1313 "mov %%eax, 0(%1) \n\t"
1314 "mov %%ebx, 4(%1) \n\t"
1315 "mov %%ecx, 8(%1) \n\t"
1316 "mov %%edx, 12(%1) \n\t"
1318 : : "a"(function), "S"(vec)
1333 void cpu_x86_cpuid(CPUX86State *env, uint32_t index,
1334 uint32_t *eax, uint32_t *ebx,
1335 uint32_t *ecx, uint32_t *edx)
1337 /* test if maximum index reached */
1338 if (index & 0x80000000) {
1339 if (index > env->cpuid_xlevel)
1340 index = env->cpuid_level;
1342 if (index > env->cpuid_level)
1343 index = env->cpuid_level;
1348 *eax = env->cpuid_level;
1349 *ebx = env->cpuid_vendor1;
1350 *edx = env->cpuid_vendor2;
1351 *ecx = env->cpuid_vendor3;
1353 /* sysenter isn't supported on compatibility mode on AMD. and syscall
1354 * isn't supported in compatibility mode on Intel. so advertise the
1355 * actuall cpu, and say goodbye to migration between different vendors
1356 * is you use compatibility mode. */
1358 host_cpuid(0, NULL, ebx, ecx, edx);
1361 *eax = env->cpuid_version;
1362 *ebx = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1363 *ecx = env->cpuid_ext_features;
1364 *edx = env->cpuid_features;
1366 /* "Hypervisor present" bit required for Microsoft SVVP */
1371 /* cache info: needed for Pentium Pro compatibility */
1378 /* cache info: needed for Core compatibility */
1380 case 0: /* L1 dcache info */
1386 case 1: /* L1 icache info */
1392 case 2: /* L2 cache info */
1398 default: /* end of info */
1408 /* mwait info: needed for Core compatibility */
1409 *eax = 0; /* Smallest monitor-line size in bytes */
1410 *ebx = 0; /* Largest monitor-line size in bytes */
1411 *ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
1415 /* Thermal and Power Leaf */
1422 /* Direct Cache Access Information Leaf */
1423 *eax = 0; /* Bits 0-31 in DCA_CAP MSR */
1429 /* Architectural Performance Monitoring Leaf */
1436 *eax = env->cpuid_xlevel;
1437 *ebx = env->cpuid_vendor1;
1438 *edx = env->cpuid_vendor2;
1439 *ecx = env->cpuid_vendor3;
1442 *eax = env->cpuid_features;
1444 *ecx = env->cpuid_ext3_features;
1445 *edx = env->cpuid_ext2_features;
1447 if (kvm_enabled()) {
1448 uint32_t h_eax, h_edx;
1450 host_cpuid(0x80000001, &h_eax, NULL, NULL, &h_edx);
1452 /* disable CPU features that the host does not support */
1455 if ((h_edx & 0x20000000) == 0 /* || !lm_capable_kernel */)
1456 *edx &= ~0x20000000;
1458 if ((h_edx & 0x00000800) == 0)
1459 *edx &= ~0x00000800;
1461 if ((h_edx & 0x00100000) == 0)
1462 *edx &= ~0x00100000;
1464 /* disable CPU features that KVM cannot support */
1469 *edx &= ~0xc0000000;
1475 *eax = env->cpuid_model[(index - 0x80000002) * 4 + 0];
1476 *ebx = env->cpuid_model[(index - 0x80000002) * 4 + 1];
1477 *ecx = env->cpuid_model[(index - 0x80000002) * 4 + 2];
1478 *edx = env->cpuid_model[(index - 0x80000002) * 4 + 3];
1481 /* cache info (L1 cache) */
1488 /* cache info (L2 cache) */
1495 /* virtual & phys address size in low 2 bytes. */
1496 /* XXX: This value must match the one used in the MMU code. */
1497 if (env->cpuid_ext2_features & CPUID_EXT2_LM) {
1498 /* 64 bit processor */
1499 #if defined(USE_KQEMU)
1500 *eax = 0x00003020; /* 48 bits virtual, 32 bits physical */
1502 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1503 *eax = 0x00003028; /* 48 bits virtual, 40 bits physical */
1506 #if defined(USE_KQEMU)
1507 *eax = 0x00000020; /* 32 bits physical */
1509 if (env->cpuid_features & CPUID_PSE36)
1510 *eax = 0x00000024; /* 36 bits physical */
1512 *eax = 0x00000020; /* 32 bits physical */
1520 *eax = 0x00000001; /* SVM Revision */
1521 *ebx = 0x00000010; /* nr of ASIDs */
1523 *edx = 0; /* optional features */
1526 /* reserved values: zero */