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, see <http://www.gnu.org/licenses/>.
28 #include "qemu-common.h"
33 /* feature flags taken from "Intel Processor Identification and the CPUID
34 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
35 * about feature names, the Linux name is used. */
36 static const char *feature_name[] = {
37 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
38 "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
39 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL, "ds" /* Intel dts */, "acpi", "mmx",
40 "fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe",
42 static const char *ext_feature_name[] = {
43 "pni" /* Intel,AMD sse3 */, NULL, NULL, "monitor", "ds_cpl", "vmx", NULL /* Linux smx */, "est",
44 "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
45 NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
46 NULL, NULL, NULL, NULL, NULL, NULL, NULL, "hypervisor",
48 static const char *ext2_feature_name[] = {
49 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
50 "cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall", "mtrr", "pge", "mca", "cmov",
51 "pat", "pse36", NULL, NULL /* Linux mp */, "nx" /* Intel xd */, NULL, "mmxext", "mmx",
52 "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow",
54 static const char *ext3_feature_name[] = {
55 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
56 "3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL, "skinit", "wdt", NULL, NULL,
57 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
58 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
61 static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features,
62 uint32_t *ext_features,
63 uint32_t *ext2_features,
64 uint32_t *ext3_features)
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;
90 fprintf(stderr, "CPU feature %s not found\n", flagname);
94 typedef struct x86_def_t {
97 uint32_t vendor1, vendor2, vendor3;
101 uint32_t features, ext_features, ext2_features, ext3_features;
107 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
108 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
109 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX)
110 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
111 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
112 CPUID_PSE36 | CPUID_FXSR)
113 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
114 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
115 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
116 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
117 CPUID_PAE | CPUID_SEP | CPUID_APIC)
118 static x86_def_t x86_defs[] = {
123 .vendor1 = CPUID_VENDOR_AMD_1,
124 .vendor2 = CPUID_VENDOR_AMD_2,
125 .vendor3 = CPUID_VENDOR_AMD_3,
129 .features = PPRO_FEATURES |
130 /* these features are needed for Win64 and aren't fully implemented */
131 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
132 /* this feature is needed for Solaris and isn't fully implemented */
134 .ext_features = CPUID_EXT_SSE3,
135 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
136 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
137 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
138 .ext3_features = CPUID_EXT3_SVM,
139 .xlevel = 0x8000000A,
140 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
145 .vendor1 = CPUID_VENDOR_AMD_1,
146 .vendor2 = CPUID_VENDOR_AMD_2,
147 .vendor3 = CPUID_VENDOR_AMD_3,
151 /* Missing: CPUID_VME, CPUID_HT */
152 .features = PPRO_FEATURES |
153 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
155 /* Missing: CPUID_EXT_CX16, CPUID_EXT_POPCNT */
156 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
157 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
158 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
159 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
160 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_MMXEXT |
162 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
163 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
164 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
165 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
166 .ext3_features = CPUID_EXT3_SVM,
167 .xlevel = 0x8000001A,
168 .model_id = "AMD Phenom(tm) 9550 Quad-Core Processor"
176 /* The original CPU also implements these features:
177 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
178 CPUID_TM, CPUID_PBE */
179 .features = PPRO_FEATURES |
180 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
182 /* The original CPU also implements these ext features:
183 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
184 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
185 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3,
186 .ext2_features = CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
187 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
188 .xlevel = 0x80000008,
189 .model_id = "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
198 .features = PPRO_FEATURES,
199 .ext_features = CPUID_EXT_SSE3,
201 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
209 /* The original CPU also implements these features:
210 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
211 CPUID_TM, CPUID_PBE */
212 .features = PPRO_FEATURES | CPUID_VME |
213 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA,
214 /* The original CPU also implements these ext features:
215 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
217 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
218 .ext2_features = CPUID_EXT2_NX,
219 .xlevel = 0x80000008,
220 .model_id = "Genuine Intel(R) CPU T2600 @ 2.16GHz",
228 .features = I486_FEATURES,
237 .features = PENTIUM_FEATURES,
246 .features = PENTIUM2_FEATURES,
255 .features = PENTIUM3_FEATURES,
261 .vendor1 = CPUID_VENDOR_AMD_1,
262 .vendor2 = CPUID_VENDOR_AMD_2,
263 .vendor3 = CPUID_VENDOR_AMD_3,
267 .features = PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
268 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
269 .xlevel = 0x80000008,
270 /* XXX: put another string ? */
271 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
275 /* original is on level 10 */
280 .features = PPRO_FEATURES |
281 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_VME,
282 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
283 * CPUID_HT | CPUID_TM | CPUID_PBE */
284 /* Some CPUs got no CPUID_SEP */
285 .ext_features = CPUID_EXT_MONITOR |
286 CPUID_EXT_SSE3 /* PNI */ | CPUID_EXT_SSSE3,
287 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
288 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
289 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_NX,
290 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
291 .xlevel = 0x8000000A,
292 .model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
296 static void host_cpuid(uint32_t function, uint32_t count, uint32_t *eax,
297 uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
299 static int cpu_x86_fill_model_id(char *str)
301 uint32_t eax, ebx, ecx, edx;
304 for (i = 0; i < 3; i++) {
305 host_cpuid(0x80000002 + i, 0, &eax, &ebx, &ecx, &edx);
306 memcpy(str + i * 16 + 0, &eax, 4);
307 memcpy(str + i * 16 + 4, &ebx, 4);
308 memcpy(str + i * 16 + 8, &ecx, 4);
309 memcpy(str + i * 16 + 12, &edx, 4);
314 static int cpu_x86_fill_host(x86_def_t *x86_cpu_def)
316 uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
318 x86_cpu_def->name = "host";
319 host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx);
320 x86_cpu_def->level = eax;
321 x86_cpu_def->vendor1 = ebx;
322 x86_cpu_def->vendor2 = edx;
323 x86_cpu_def->vendor3 = ecx;
325 host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx);
326 x86_cpu_def->family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
327 x86_cpu_def->model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12);
328 x86_cpu_def->stepping = eax & 0x0F;
329 x86_cpu_def->ext_features = ecx;
330 x86_cpu_def->features = edx;
332 host_cpuid(0x80000000, 0, &eax, &ebx, &ecx, &edx);
333 x86_cpu_def->xlevel = eax;
335 host_cpuid(0x80000001, 0, &eax, &ebx, &ecx, &edx);
336 x86_cpu_def->ext2_features = edx;
337 x86_cpu_def->ext3_features = ecx;
338 cpu_x86_fill_model_id(x86_cpu_def->model_id);
339 x86_cpu_def->vendor_override = 0;
344 static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
349 char *s = strdup(cpu_model);
350 char *featurestr, *name = strtok(s, ",");
351 uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0;
352 uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0;
353 int family = -1, model = -1, stepping = -1;
356 for (i = 0; i < ARRAY_SIZE(x86_defs); i++) {
357 if (strcmp(name, x86_defs[i].name) == 0) {
363 if (strcmp(name, "host") != 0) {
366 cpu_x86_fill_host(x86_cpu_def);
368 memcpy(x86_cpu_def, def, sizeof(*def));
371 add_flagname_to_bitmaps("hypervisor", &plus_features,
372 &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
374 featurestr = strtok(NULL, ",");
378 if (featurestr[0] == '+') {
379 add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
380 } else if (featurestr[0] == '-') {
381 add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
382 } else if ((val = strchr(featurestr, '='))) {
384 if (!strcmp(featurestr, "family")) {
386 family = strtol(val, &err, 10);
387 if (!*val || *err || family < 0) {
388 fprintf(stderr, "bad numerical value %s\n", val);
391 x86_cpu_def->family = family;
392 } else if (!strcmp(featurestr, "model")) {
394 model = strtol(val, &err, 10);
395 if (!*val || *err || model < 0 || model > 0xff) {
396 fprintf(stderr, "bad numerical value %s\n", val);
399 x86_cpu_def->model = model;
400 } else if (!strcmp(featurestr, "stepping")) {
402 stepping = strtol(val, &err, 10);
403 if (!*val || *err || stepping < 0 || stepping > 0xf) {
404 fprintf(stderr, "bad numerical value %s\n", val);
407 x86_cpu_def->stepping = stepping;
408 } else if (!strcmp(featurestr, "vendor")) {
409 if (strlen(val) != 12) {
410 fprintf(stderr, "vendor string must be 12 chars long\n");
413 x86_cpu_def->vendor1 = 0;
414 x86_cpu_def->vendor2 = 0;
415 x86_cpu_def->vendor3 = 0;
416 for(i = 0; i < 4; i++) {
417 x86_cpu_def->vendor1 |= ((uint8_t)val[i ]) << (8 * i);
418 x86_cpu_def->vendor2 |= ((uint8_t)val[i + 4]) << (8 * i);
419 x86_cpu_def->vendor3 |= ((uint8_t)val[i + 8]) << (8 * i);
421 x86_cpu_def->vendor_override = 1;
422 } else if (!strcmp(featurestr, "model_id")) {
423 pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
426 fprintf(stderr, "unrecognized feature %s\n", featurestr);
430 fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
433 featurestr = strtok(NULL, ",");
435 x86_cpu_def->features |= plus_features;
436 x86_cpu_def->ext_features |= plus_ext_features;
437 x86_cpu_def->ext2_features |= plus_ext2_features;
438 x86_cpu_def->ext3_features |= plus_ext3_features;
439 x86_cpu_def->features &= ~minus_features;
440 x86_cpu_def->ext_features &= ~minus_ext_features;
441 x86_cpu_def->ext2_features &= ~minus_ext2_features;
442 x86_cpu_def->ext3_features &= ~minus_ext3_features;
451 void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
455 for (i = 0; i < ARRAY_SIZE(x86_defs); i++)
456 (*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
459 static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
461 x86_def_t def1, *def = &def1;
463 if (cpu_x86_find_by_name(def, cpu_model) < 0)
466 env->cpuid_vendor1 = def->vendor1;
467 env->cpuid_vendor2 = def->vendor2;
468 env->cpuid_vendor3 = def->vendor3;
470 env->cpuid_vendor1 = CPUID_VENDOR_INTEL_1;
471 env->cpuid_vendor2 = CPUID_VENDOR_INTEL_2;
472 env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
474 env->cpuid_vendor_override = def->vendor_override;
475 env->cpuid_level = def->level;
476 if (def->family > 0x0f)
477 env->cpuid_version = 0xf00 | ((def->family - 0x0f) << 20);
479 env->cpuid_version = def->family << 8;
480 env->cpuid_version |= ((def->model & 0xf) << 4) | ((def->model >> 4) << 16);
481 env->cpuid_version |= def->stepping;
482 env->cpuid_features = def->features;
483 env->pat = 0x0007040600070406ULL;
484 env->cpuid_ext_features = def->ext_features;
485 env->cpuid_ext2_features = def->ext2_features;
486 env->cpuid_xlevel = def->xlevel;
487 env->cpuid_ext3_features = def->ext3_features;
489 const char *model_id = def->model_id;
493 len = strlen(model_id);
494 for(i = 0; i < 48; i++) {
498 c = (uint8_t)model_id[i];
499 env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
505 /* NOTE: must be called outside the CPU execute loop */
506 void cpu_reset(CPUX86State *env)
510 if (qemu_loglevel_mask(CPU_LOG_RESET)) {
511 qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
512 log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP);
515 memset(env, 0, offsetof(CPUX86State, breakpoints));
519 env->old_exception = -1;
521 /* init to reset state */
523 #ifdef CONFIG_SOFTMMU
524 env->hflags |= HF_SOFTMMU_MASK;
526 env->hflags2 |= HF2_GIF_MASK;
528 cpu_x86_update_cr0(env, 0x60000010);
529 env->a20_mask = ~0x0;
530 env->smbase = 0x30000;
532 env->idt.limit = 0xffff;
533 env->gdt.limit = 0xffff;
534 env->ldt.limit = 0xffff;
535 env->ldt.flags = DESC_P_MASK | (2 << DESC_TYPE_SHIFT);
536 env->tr.limit = 0xffff;
537 env->tr.flags = DESC_P_MASK | (11 << DESC_TYPE_SHIFT);
539 cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff,
540 DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK |
541 DESC_R_MASK | DESC_A_MASK);
542 cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff,
543 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
545 cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff,
546 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
548 cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff,
549 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
551 cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff,
552 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
554 cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff,
555 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
559 env->regs[R_EDX] = env->cpuid_version;
564 for(i = 0;i < 8; i++)
570 memset(env->dr, 0, sizeof(env->dr));
571 env->dr[6] = DR6_FIXED_1;
572 env->dr[7] = DR7_FIXED_1;
573 cpu_breakpoint_remove_all(env, BP_CPU);
574 cpu_watchpoint_remove_all(env, BP_CPU);
577 void cpu_x86_close(CPUX86State *env)
582 /***********************************************************/
585 static const char *cc_op_str[] = {
641 cpu_x86_dump_seg_cache(CPUState *env, FILE *f,
642 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
643 const char *name, struct SegmentCache *sc)
646 if (env->hflags & HF_CS64_MASK) {
647 cpu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
648 sc->selector, sc->base, sc->limit, sc->flags);
652 cpu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
653 (uint32_t)sc->base, sc->limit, sc->flags);
656 if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
659 cpu_fprintf(f, " DPL=%d ", (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
660 if (sc->flags & DESC_S_MASK) {
661 if (sc->flags & DESC_CS_MASK) {
662 cpu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
663 ((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
664 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
665 (sc->flags & DESC_R_MASK) ? 'R' : '-');
667 cpu_fprintf(f, (sc->flags & DESC_B_MASK) ? "DS " : "DS16");
668 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
669 (sc->flags & DESC_W_MASK) ? 'W' : '-');
671 cpu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
673 static const char *sys_type_name[2][16] = {
675 "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
676 "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
677 "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
678 "CallGate32", "Reserved", "IntGate32", "TrapGate32"
681 "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
682 "Reserved", "Reserved", "Reserved", "Reserved",
683 "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
684 "Reserved", "IntGate64", "TrapGate64"
687 cpu_fprintf(f, sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
688 [(sc->flags & DESC_TYPE_MASK)
689 >> DESC_TYPE_SHIFT]);
692 cpu_fprintf(f, "\n");
695 void cpu_dump_state(CPUState *env, FILE *f,
696 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
701 static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
704 kvm_arch_get_registers(env);
706 eflags = env->eflags;
708 if (env->hflags & HF_CS64_MASK) {
710 "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
711 "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
712 "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
713 "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
714 "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
732 eflags & DF_MASK ? 'D' : '-',
733 eflags & CC_O ? 'O' : '-',
734 eflags & CC_S ? 'S' : '-',
735 eflags & CC_Z ? 'Z' : '-',
736 eflags & CC_A ? 'A' : '-',
737 eflags & CC_P ? 'P' : '-',
738 eflags & CC_C ? 'C' : '-',
739 env->hflags & HF_CPL_MASK,
740 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
741 (int)(env->a20_mask >> 20) & 1,
742 (env->hflags >> HF_SMM_SHIFT) & 1,
747 cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
748 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
749 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
750 (uint32_t)env->regs[R_EAX],
751 (uint32_t)env->regs[R_EBX],
752 (uint32_t)env->regs[R_ECX],
753 (uint32_t)env->regs[R_EDX],
754 (uint32_t)env->regs[R_ESI],
755 (uint32_t)env->regs[R_EDI],
756 (uint32_t)env->regs[R_EBP],
757 (uint32_t)env->regs[R_ESP],
758 (uint32_t)env->eip, eflags,
759 eflags & DF_MASK ? 'D' : '-',
760 eflags & CC_O ? 'O' : '-',
761 eflags & CC_S ? 'S' : '-',
762 eflags & CC_Z ? 'Z' : '-',
763 eflags & CC_A ? 'A' : '-',
764 eflags & CC_P ? 'P' : '-',
765 eflags & CC_C ? 'C' : '-',
766 env->hflags & HF_CPL_MASK,
767 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
768 (int)(env->a20_mask >> 20) & 1,
769 (env->hflags >> HF_SMM_SHIFT) & 1,
773 for(i = 0; i < 6; i++) {
774 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, seg_name[i],
777 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "LDT", &env->ldt);
778 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "TR", &env->tr);
781 if (env->hflags & HF_LMA_MASK) {
782 cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
783 env->gdt.base, env->gdt.limit);
784 cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
785 env->idt.base, env->idt.limit);
786 cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
787 (uint32_t)env->cr[0],
790 (uint32_t)env->cr[4]);
791 for(i = 0; i < 4; i++)
792 cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
793 cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
794 env->dr[6], env->dr[7]);
798 cpu_fprintf(f, "GDT= %08x %08x\n",
799 (uint32_t)env->gdt.base, env->gdt.limit);
800 cpu_fprintf(f, "IDT= %08x %08x\n",
801 (uint32_t)env->idt.base, env->idt.limit);
802 cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
803 (uint32_t)env->cr[0],
804 (uint32_t)env->cr[2],
805 (uint32_t)env->cr[3],
806 (uint32_t)env->cr[4]);
807 for(i = 0; i < 4; i++)
808 cpu_fprintf(f, "DR%d=%08x ", i, env->dr[i]);
809 cpu_fprintf(f, "\nDR6=%08x DR7=%08x\n", env->dr[6], env->dr[7]);
811 if (flags & X86_DUMP_CCOP) {
812 if ((unsigned)env->cc_op < CC_OP_NB)
813 snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
815 snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
817 if (env->hflags & HF_CS64_MASK) {
818 cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
819 env->cc_src, env->cc_dst,
824 cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
825 (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
829 if (flags & X86_DUMP_FPU) {
832 for(i = 0; i < 8; i++) {
833 fptag |= ((!env->fptags[i]) << i);
835 cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
837 (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
842 #if defined(USE_X86LDOUBLE)
850 tmp.d = env->fpregs[i].d;
851 cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
852 i, tmp.l.lower, tmp.l.upper);
854 cpu_fprintf(f, "FPR%d=%016" PRIx64,
855 i, env->fpregs[i].mmx.q);
858 cpu_fprintf(f, "\n");
862 if (env->hflags & HF_CS64_MASK)
867 cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
869 env->xmm_regs[i].XMM_L(3),
870 env->xmm_regs[i].XMM_L(2),
871 env->xmm_regs[i].XMM_L(1),
872 env->xmm_regs[i].XMM_L(0));
874 cpu_fprintf(f, "\n");
881 /***********************************************************/
883 /* XXX: add PGE support */
885 void cpu_x86_set_a20(CPUX86State *env, int a20_state)
887 a20_state = (a20_state != 0);
888 if (a20_state != ((env->a20_mask >> 20) & 1)) {
889 #if defined(DEBUG_MMU)
890 printf("A20 update: a20=%d\n", a20_state);
892 /* if the cpu is currently executing code, we must unlink it and
893 all the potentially executing TB */
894 cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
896 /* when a20 is changed, all the MMU mappings are invalid, so
897 we must flush everything */
899 env->a20_mask = (~0x100000) | (a20_state << 20);
903 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
907 #if defined(DEBUG_MMU)
908 printf("CR0 update: CR0=0x%08x\n", new_cr0);
910 if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
911 (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
916 if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
917 (env->efer & MSR_EFER_LME)) {
918 /* enter in long mode */
919 /* XXX: generate an exception */
920 if (!(env->cr[4] & CR4_PAE_MASK))
922 env->efer |= MSR_EFER_LMA;
923 env->hflags |= HF_LMA_MASK;
924 } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
925 (env->efer & MSR_EFER_LMA)) {
927 env->efer &= ~MSR_EFER_LMA;
928 env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
929 env->eip &= 0xffffffff;
932 env->cr[0] = new_cr0 | CR0_ET_MASK;
934 /* update PE flag in hidden flags */
935 pe_state = (env->cr[0] & CR0_PE_MASK);
936 env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
937 /* ensure that ADDSEG is always set in real mode */
938 env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
939 /* update FPU flags */
940 env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
941 ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
944 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
946 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
948 env->cr[3] = new_cr3;
949 if (env->cr[0] & CR0_PG_MASK) {
950 #if defined(DEBUG_MMU)
951 printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
957 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
959 #if defined(DEBUG_MMU)
960 printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
962 if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
963 (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
967 if (!(env->cpuid_features & CPUID_SSE))
968 new_cr4 &= ~CR4_OSFXSR_MASK;
969 if (new_cr4 & CR4_OSFXSR_MASK)
970 env->hflags |= HF_OSFXSR_MASK;
972 env->hflags &= ~HF_OSFXSR_MASK;
974 env->cr[4] = new_cr4;
977 #if defined(CONFIG_USER_ONLY)
979 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
980 int is_write, int mmu_idx, int is_softmmu)
982 /* user mode only emulation */
985 env->error_code = (is_write << PG_ERROR_W_BIT);
986 env->error_code |= PG_ERROR_U_MASK;
987 env->exception_index = EXCP0E_PAGE;
991 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
998 /* XXX: This value should match the one returned by CPUID
1000 #if defined(CONFIG_KQEMU)
1001 #define PHYS_ADDR_MASK 0xfffff000LL
1003 # if defined(TARGET_X86_64)
1004 # define PHYS_ADDR_MASK 0xfffffff000LL
1006 # define PHYS_ADDR_MASK 0xffffff000LL
1011 -1 = cannot handle fault
1012 0 = nothing more to do
1013 1 = generate PF fault
1014 2 = soft MMU activation required for this block
1016 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
1017 int is_write1, int mmu_idx, int is_softmmu)
1020 target_ulong pde_addr, pte_addr;
1021 int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
1022 target_phys_addr_t paddr;
1023 uint32_t page_offset;
1024 target_ulong vaddr, virt_addr;
1026 is_user = mmu_idx == MMU_USER_IDX;
1027 #if defined(DEBUG_MMU)
1028 printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
1029 addr, is_write1, is_user, env->eip);
1031 is_write = is_write1 & 1;
1033 if (!(env->cr[0] & CR0_PG_MASK)) {
1035 virt_addr = addr & TARGET_PAGE_MASK;
1036 prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
1041 if (env->cr[4] & CR4_PAE_MASK) {
1043 target_ulong pdpe_addr;
1045 #ifdef TARGET_X86_64
1046 if (env->hflags & HF_LMA_MASK) {
1047 uint64_t pml4e_addr, pml4e;
1050 /* test virtual address sign extension */
1051 sext = (int64_t)addr >> 47;
1052 if (sext != 0 && sext != -1) {
1053 env->error_code = 0;
1054 env->exception_index = EXCP0D_GPF;
1058 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1060 pml4e = ldq_phys(pml4e_addr);
1061 if (!(pml4e & PG_PRESENT_MASK)) {
1065 if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
1066 error_code = PG_ERROR_RSVD_MASK;
1069 if (!(pml4e & PG_ACCESSED_MASK)) {
1070 pml4e |= PG_ACCESSED_MASK;
1071 stl_phys_notdirty(pml4e_addr, pml4e);
1073 ptep = pml4e ^ PG_NX_MASK;
1074 pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
1076 pdpe = ldq_phys(pdpe_addr);
1077 if (!(pdpe & PG_PRESENT_MASK)) {
1081 if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
1082 error_code = PG_ERROR_RSVD_MASK;
1085 ptep &= pdpe ^ PG_NX_MASK;
1086 if (!(pdpe & PG_ACCESSED_MASK)) {
1087 pdpe |= PG_ACCESSED_MASK;
1088 stl_phys_notdirty(pdpe_addr, pdpe);
1093 /* XXX: load them when cr3 is loaded ? */
1094 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1096 pdpe = ldq_phys(pdpe_addr);
1097 if (!(pdpe & PG_PRESENT_MASK)) {
1101 ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
1104 pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
1106 pde = ldq_phys(pde_addr);
1107 if (!(pde & PG_PRESENT_MASK)) {
1111 if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
1112 error_code = PG_ERROR_RSVD_MASK;
1115 ptep &= pde ^ PG_NX_MASK;
1116 if (pde & PG_PSE_MASK) {
1118 page_size = 2048 * 1024;
1120 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1121 goto do_fault_protect;
1123 if (!(ptep & PG_USER_MASK))
1124 goto do_fault_protect;
1125 if (is_write && !(ptep & PG_RW_MASK))
1126 goto do_fault_protect;
1128 if ((env->cr[0] & CR0_WP_MASK) &&
1129 is_write && !(ptep & PG_RW_MASK))
1130 goto do_fault_protect;
1132 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1133 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1134 pde |= PG_ACCESSED_MASK;
1136 pde |= PG_DIRTY_MASK;
1137 stl_phys_notdirty(pde_addr, pde);
1139 /* align to page_size */
1140 pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
1141 virt_addr = addr & ~(page_size - 1);
1144 if (!(pde & PG_ACCESSED_MASK)) {
1145 pde |= PG_ACCESSED_MASK;
1146 stl_phys_notdirty(pde_addr, pde);
1148 pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
1150 pte = ldq_phys(pte_addr);
1151 if (!(pte & PG_PRESENT_MASK)) {
1155 if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
1156 error_code = PG_ERROR_RSVD_MASK;
1159 /* combine pde and pte nx, user and rw protections */
1160 ptep &= pte ^ PG_NX_MASK;
1162 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1163 goto do_fault_protect;
1165 if (!(ptep & PG_USER_MASK))
1166 goto do_fault_protect;
1167 if (is_write && !(ptep & PG_RW_MASK))
1168 goto do_fault_protect;
1170 if ((env->cr[0] & CR0_WP_MASK) &&
1171 is_write && !(ptep & PG_RW_MASK))
1172 goto do_fault_protect;
1174 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1175 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1176 pte |= PG_ACCESSED_MASK;
1178 pte |= PG_DIRTY_MASK;
1179 stl_phys_notdirty(pte_addr, pte);
1182 virt_addr = addr & ~0xfff;
1183 pte = pte & (PHYS_ADDR_MASK | 0xfff);
1188 /* page directory entry */
1189 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
1191 pde = ldl_phys(pde_addr);
1192 if (!(pde & PG_PRESENT_MASK)) {
1196 /* if PSE bit is set, then we use a 4MB page */
1197 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1198 page_size = 4096 * 1024;
1200 if (!(pde & PG_USER_MASK))
1201 goto do_fault_protect;
1202 if (is_write && !(pde & PG_RW_MASK))
1203 goto do_fault_protect;
1205 if ((env->cr[0] & CR0_WP_MASK) &&
1206 is_write && !(pde & PG_RW_MASK))
1207 goto do_fault_protect;
1209 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1210 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1211 pde |= PG_ACCESSED_MASK;
1213 pde |= PG_DIRTY_MASK;
1214 stl_phys_notdirty(pde_addr, pde);
1217 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1219 virt_addr = addr & ~(page_size - 1);
1221 if (!(pde & PG_ACCESSED_MASK)) {
1222 pde |= PG_ACCESSED_MASK;
1223 stl_phys_notdirty(pde_addr, pde);
1226 /* page directory entry */
1227 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
1229 pte = ldl_phys(pte_addr);
1230 if (!(pte & PG_PRESENT_MASK)) {
1234 /* combine pde and pte user and rw protections */
1237 if (!(ptep & PG_USER_MASK))
1238 goto do_fault_protect;
1239 if (is_write && !(ptep & PG_RW_MASK))
1240 goto do_fault_protect;
1242 if ((env->cr[0] & CR0_WP_MASK) &&
1243 is_write && !(ptep & PG_RW_MASK))
1244 goto do_fault_protect;
1246 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1247 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1248 pte |= PG_ACCESSED_MASK;
1250 pte |= PG_DIRTY_MASK;
1251 stl_phys_notdirty(pte_addr, pte);
1254 virt_addr = addr & ~0xfff;
1257 /* the page can be put in the TLB */
1259 if (!(ptep & PG_NX_MASK))
1261 if (pte & PG_DIRTY_MASK) {
1262 /* only set write access if already dirty... otherwise wait
1265 if (ptep & PG_RW_MASK)
1268 if (!(env->cr[0] & CR0_WP_MASK) ||
1269 (ptep & PG_RW_MASK))
1274 pte = pte & env->a20_mask;
1276 /* Even if 4MB pages, we map only one 4KB page in the cache to
1277 avoid filling it too fast */
1278 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1279 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1280 vaddr = virt_addr + page_offset;
1282 ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
1285 error_code = PG_ERROR_P_MASK;
1287 error_code |= (is_write << PG_ERROR_W_BIT);
1289 error_code |= PG_ERROR_U_MASK;
1290 if (is_write1 == 2 &&
1291 (env->efer & MSR_EFER_NXE) &&
1292 (env->cr[4] & CR4_PAE_MASK))
1293 error_code |= PG_ERROR_I_D_MASK;
1294 if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
1295 /* cr2 is not modified in case of exceptions */
1296 stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
1301 env->error_code = error_code;
1302 env->exception_index = EXCP0E_PAGE;
1306 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
1308 target_ulong pde_addr, pte_addr;
1310 target_phys_addr_t paddr;
1311 uint32_t page_offset;
1314 if (env->cr[4] & CR4_PAE_MASK) {
1315 target_ulong pdpe_addr;
1318 #ifdef TARGET_X86_64
1319 if (env->hflags & HF_LMA_MASK) {
1320 uint64_t pml4e_addr, pml4e;
1323 /* test virtual address sign extension */
1324 sext = (int64_t)addr >> 47;
1325 if (sext != 0 && sext != -1)
1328 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1330 pml4e = ldq_phys(pml4e_addr);
1331 if (!(pml4e & PG_PRESENT_MASK))
1334 pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
1336 pdpe = ldq_phys(pdpe_addr);
1337 if (!(pdpe & PG_PRESENT_MASK))
1342 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1344 pdpe = ldq_phys(pdpe_addr);
1345 if (!(pdpe & PG_PRESENT_MASK))
1349 pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
1351 pde = ldq_phys(pde_addr);
1352 if (!(pde & PG_PRESENT_MASK)) {
1355 if (pde & PG_PSE_MASK) {
1357 page_size = 2048 * 1024;
1358 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1361 pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
1364 pte = ldq_phys(pte_addr);
1366 if (!(pte & PG_PRESENT_MASK))
1371 if (!(env->cr[0] & CR0_PG_MASK)) {
1375 /* page directory entry */
1376 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
1377 pde = ldl_phys(pde_addr);
1378 if (!(pde & PG_PRESENT_MASK))
1380 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1381 pte = pde & ~0x003ff000; /* align to 4MB */
1382 page_size = 4096 * 1024;
1384 /* page directory entry */
1385 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
1386 pte = ldl_phys(pte_addr);
1387 if (!(pte & PG_PRESENT_MASK))
1392 pte = pte & env->a20_mask;
1395 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1396 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1400 void hw_breakpoint_insert(CPUState *env, int index)
1404 switch (hw_breakpoint_type(env->dr[7], index)) {
1406 if (hw_breakpoint_enabled(env->dr[7], index))
1407 err = cpu_breakpoint_insert(env, env->dr[index], BP_CPU,
1408 &env->cpu_breakpoint[index]);
1411 type = BP_CPU | BP_MEM_WRITE;
1414 /* No support for I/O watchpoints yet */
1417 type = BP_CPU | BP_MEM_ACCESS;
1419 err = cpu_watchpoint_insert(env, env->dr[index],
1420 hw_breakpoint_len(env->dr[7], index),
1421 type, &env->cpu_watchpoint[index]);
1425 env->cpu_breakpoint[index] = NULL;
1428 void hw_breakpoint_remove(CPUState *env, int index)
1430 if (!env->cpu_breakpoint[index])
1432 switch (hw_breakpoint_type(env->dr[7], index)) {
1434 if (hw_breakpoint_enabled(env->dr[7], index))
1435 cpu_breakpoint_remove_by_ref(env, env->cpu_breakpoint[index]);
1439 cpu_watchpoint_remove_by_ref(env, env->cpu_watchpoint[index]);
1442 /* No support for I/O watchpoints yet */
1447 int check_hw_breakpoints(CPUState *env, int force_dr6_update)
1451 int hit_enabled = 0;
1453 dr6 = env->dr[6] & ~0xf;
1454 for (reg = 0; reg < 4; reg++) {
1455 type = hw_breakpoint_type(env->dr[7], reg);
1456 if ((type == 0 && env->dr[reg] == env->eip) ||
1457 ((type & 1) && env->cpu_watchpoint[reg] &&
1458 (env->cpu_watchpoint[reg]->flags & BP_WATCHPOINT_HIT))) {
1460 if (hw_breakpoint_enabled(env->dr[7], reg))
1464 if (hit_enabled || force_dr6_update)
1469 static CPUDebugExcpHandler *prev_debug_excp_handler;
1471 void raise_exception(int exception_index);
1473 static void breakpoint_handler(CPUState *env)
1477 if (env->watchpoint_hit) {
1478 if (env->watchpoint_hit->flags & BP_CPU) {
1479 env->watchpoint_hit = NULL;
1480 if (check_hw_breakpoints(env, 0))
1481 raise_exception(EXCP01_DB);
1483 cpu_resume_from_signal(env, NULL);
1486 TAILQ_FOREACH(bp, &env->breakpoints, entry)
1487 if (bp->pc == env->eip) {
1488 if (bp->flags & BP_CPU) {
1489 check_hw_breakpoints(env, 1);
1490 raise_exception(EXCP01_DB);
1495 if (prev_debug_excp_handler)
1496 prev_debug_excp_handler(env);
1499 /* This should come from sysemu.h - if we could include it here... */
1500 void qemu_system_reset_request(void);
1502 void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status,
1503 uint64_t mcg_status, uint64_t addr, uint64_t misc)
1505 uint64_t mcg_cap = cenv->mcg_cap;
1506 unsigned bank_num = mcg_cap & 0xff;
1507 uint64_t *banks = cenv->mce_banks;
1509 if (bank >= bank_num || !(status & MCI_STATUS_VAL))
1513 * if MSR_MCG_CTL is not all 1s, the uncorrected error
1514 * reporting is disabled
1516 if ((status & MCI_STATUS_UC) && (mcg_cap & MCG_CTL_P) &&
1517 cenv->mcg_ctl != ~(uint64_t)0)
1521 * if MSR_MCi_CTL is not all 1s, the uncorrected error
1522 * reporting is disabled for the bank
1524 if ((status & MCI_STATUS_UC) && banks[0] != ~(uint64_t)0)
1526 if (status & MCI_STATUS_UC) {
1527 if ((cenv->mcg_status & MCG_STATUS_MCIP) ||
1528 !(cenv->cr[4] & CR4_MCE_MASK)) {
1529 fprintf(stderr, "injects mce exception while previous "
1530 "one is in progress!\n");
1531 qemu_log_mask(CPU_LOG_RESET, "Triple fault\n");
1532 qemu_system_reset_request();
1535 if (banks[1] & MCI_STATUS_VAL)
1536 status |= MCI_STATUS_OVER;
1539 cenv->mcg_status = mcg_status;
1541 cpu_interrupt(cenv, CPU_INTERRUPT_MCE);
1542 } else if (!(banks[1] & MCI_STATUS_VAL)
1543 || !(banks[1] & MCI_STATUS_UC)) {
1544 if (banks[1] & MCI_STATUS_VAL)
1545 status |= MCI_STATUS_OVER;
1550 banks[1] |= MCI_STATUS_OVER;
1552 #endif /* !CONFIG_USER_ONLY */
1554 static void mce_init(CPUX86State *cenv)
1556 unsigned int bank, bank_num;
1558 if (((cenv->cpuid_version >> 8)&0xf) >= 6
1559 && (cenv->cpuid_features&(CPUID_MCE|CPUID_MCA)) == (CPUID_MCE|CPUID_MCA)) {
1560 cenv->mcg_cap = MCE_CAP_DEF | MCE_BANKS_DEF;
1561 cenv->mcg_ctl = ~(uint64_t)0;
1562 bank_num = cenv->mcg_cap & 0xff;
1563 cenv->mce_banks = qemu_mallocz(bank_num * sizeof(uint64_t) * 4);
1564 for (bank = 0; bank < bank_num; bank++)
1565 cenv->mce_banks[bank*4] = ~(uint64_t)0;
1569 static void host_cpuid(uint32_t function, uint32_t count,
1570 uint32_t *eax, uint32_t *ebx,
1571 uint32_t *ecx, uint32_t *edx)
1573 #if defined(CONFIG_KVM)
1577 asm volatile("cpuid"
1578 : "=a"(vec[0]), "=b"(vec[1]),
1579 "=c"(vec[2]), "=d"(vec[3])
1580 : "0"(function), "c"(count) : "cc");
1582 asm volatile("pusha \n\t"
1584 "mov %%eax, 0(%2) \n\t"
1585 "mov %%ebx, 4(%2) \n\t"
1586 "mov %%ecx, 8(%2) \n\t"
1587 "mov %%edx, 12(%2) \n\t"
1589 : : "a"(function), "c"(count), "S"(vec)
1604 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
1605 uint32_t *eax, uint32_t *ebx,
1606 uint32_t *ecx, uint32_t *edx)
1608 /* test if maximum index reached */
1609 if (index & 0x80000000) {
1610 if (index > env->cpuid_xlevel)
1611 index = env->cpuid_level;
1613 if (index > env->cpuid_level)
1614 index = env->cpuid_level;
1619 *eax = env->cpuid_level;
1620 *ebx = env->cpuid_vendor1;
1621 *edx = env->cpuid_vendor2;
1622 *ecx = env->cpuid_vendor3;
1624 /* sysenter isn't supported on compatibility mode on AMD. and syscall
1625 * isn't supported in compatibility mode on Intel. so advertise the
1626 * actuall cpu, and say goodbye to migration between different vendors
1627 * is you use compatibility mode. */
1628 if (kvm_enabled() && !env->cpuid_vendor_override)
1629 host_cpuid(0, 0, NULL, ebx, ecx, edx);
1632 *eax = env->cpuid_version;
1633 *ebx = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1634 *ecx = env->cpuid_ext_features;
1635 *edx = env->cpuid_features;
1638 /* cache info: needed for Pentium Pro compatibility */
1645 /* cache info: needed for Core compatibility */
1647 case 0: /* L1 dcache info */
1653 case 1: /* L1 icache info */
1659 case 2: /* L2 cache info */
1665 default: /* end of info */
1674 /* mwait info: needed for Core compatibility */
1675 *eax = 0; /* Smallest monitor-line size in bytes */
1676 *ebx = 0; /* Largest monitor-line size in bytes */
1677 *ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
1681 /* Thermal and Power Leaf */
1688 /* Direct Cache Access Information Leaf */
1689 *eax = 0; /* Bits 0-31 in DCA_CAP MSR */
1695 /* Architectural Performance Monitoring Leaf */
1702 *eax = env->cpuid_xlevel;
1703 *ebx = env->cpuid_vendor1;
1704 *edx = env->cpuid_vendor2;
1705 *ecx = env->cpuid_vendor3;
1708 *eax = env->cpuid_version;
1710 *ecx = env->cpuid_ext3_features;
1711 *edx = env->cpuid_ext2_features;
1713 if (kvm_enabled()) {
1714 /* Nested SVM not yet supported in KVM */
1715 *ecx &= ~CPUID_EXT3_SVM;
1717 /* AMD 3DNow! is not supported in QEMU */
1718 *edx &= ~(CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT);
1724 *eax = env->cpuid_model[(index - 0x80000002) * 4 + 0];
1725 *ebx = env->cpuid_model[(index - 0x80000002) * 4 + 1];
1726 *ecx = env->cpuid_model[(index - 0x80000002) * 4 + 2];
1727 *edx = env->cpuid_model[(index - 0x80000002) * 4 + 3];
1730 /* cache info (L1 cache) */
1737 /* cache info (L2 cache) */
1744 /* virtual & phys address size in low 2 bytes. */
1745 /* XXX: This value must match the one used in the MMU code. */
1746 if (env->cpuid_ext2_features & CPUID_EXT2_LM) {
1747 /* 64 bit processor */
1748 #if defined(CONFIG_KQEMU)
1749 *eax = 0x00003020; /* 48 bits virtual, 32 bits physical */
1751 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1752 *eax = 0x00003028; /* 48 bits virtual, 40 bits physical */
1755 #if defined(CONFIG_KQEMU)
1756 *eax = 0x00000020; /* 32 bits physical */
1758 if (env->cpuid_features & CPUID_PSE36)
1759 *eax = 0x00000024; /* 36 bits physical */
1761 *eax = 0x00000020; /* 32 bits physical */
1769 *eax = 0x00000001; /* SVM Revision */
1770 *ebx = 0x00000010; /* nr of ASIDs */
1772 *edx = 0; /* optional features */
1775 /* reserved values: zero */
1785 int cpu_x86_get_descr_debug(CPUX86State *env, unsigned int selector,
1786 target_ulong *base, unsigned int *limit,
1787 unsigned int *flags)
1798 index = selector & ~7;
1799 ptr = dt->base + index;
1800 if ((index + 7) > dt->limit
1801 || cpu_memory_rw_debug(env, ptr, (uint8_t *)&e1, sizeof(e1), 0) != 0
1802 || cpu_memory_rw_debug(env, ptr+4, (uint8_t *)&e2, sizeof(e2), 0) != 0)
1805 *base = ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000));
1806 *limit = (e1 & 0xffff) | (e2 & 0x000f0000);
1807 if (e2 & DESC_G_MASK)
1808 *limit = (*limit << 12) | 0xfff;
1814 CPUX86State *cpu_x86_init(const char *cpu_model)
1819 env = qemu_mallocz(sizeof(CPUX86State));
1821 env->cpu_model_str = cpu_model;
1823 /* init various static tables */
1826 optimize_flags_init();
1827 #ifndef CONFIG_USER_ONLY
1828 prev_debug_excp_handler =
1829 cpu_set_debug_excp_handler(breakpoint_handler);
1832 if (cpu_x86_register(env, cpu_model) < 0) {
1842 qemu_init_vcpu(env);
1847 #if !defined(CONFIG_USER_ONLY)
1848 void do_cpu_init(CPUState *env)
1850 int sipi = env->interrupt_request & CPU_INTERRUPT_SIPI;
1852 env->interrupt_request = sipi;
1853 apic_init_reset(env);
1856 void do_cpu_sipi(CPUState *env)
1861 void do_cpu_init(CPUState *env)
1864 void do_cpu_sipi(CPUState *env)