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 .ext3_features = CPUID_EXT3_SVM,
138 .xlevel = 0x8000000A,
139 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
144 .vendor1 = CPUID_VENDOR_AMD_1,
145 .vendor2 = CPUID_VENDOR_AMD_2,
146 .vendor3 = CPUID_VENDOR_AMD_3,
150 /* Missing: CPUID_VME, CPUID_HT */
151 .features = PPRO_FEATURES |
152 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
154 /* Missing: CPUID_EXT_CX16, CPUID_EXT_POPCNT */
155 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
156 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
157 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
158 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
159 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_MMXEXT |
161 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
162 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
163 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
164 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
165 .ext3_features = CPUID_EXT3_SVM,
166 .xlevel = 0x8000001A,
167 .model_id = "AMD Phenom(tm) 9550 Quad-Core Processor"
175 /* The original CPU also implements these features:
176 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
177 CPUID_TM, CPUID_PBE */
178 .features = PPRO_FEATURES |
179 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
181 /* The original CPU also implements these ext features:
182 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
183 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
184 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3,
185 .ext2_features = CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
186 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
187 .xlevel = 0x80000008,
188 .model_id = "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
197 .features = PPRO_FEATURES,
198 .ext_features = CPUID_EXT_SSE3,
200 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
208 /* The original CPU also implements these features:
209 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
210 CPUID_TM, CPUID_PBE */
211 .features = PPRO_FEATURES | CPUID_VME |
212 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA,
213 /* The original CPU also implements these ext features:
214 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
216 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
217 .ext2_features = CPUID_EXT2_NX,
218 .xlevel = 0x80000008,
219 .model_id = "Genuine Intel(R) CPU T2600 @ 2.16GHz",
227 .features = I486_FEATURES,
236 .features = PENTIUM_FEATURES,
245 .features = PENTIUM2_FEATURES,
254 .features = PENTIUM3_FEATURES,
260 .vendor1 = CPUID_VENDOR_AMD_1,
261 .vendor2 = CPUID_VENDOR_AMD_2,
262 .vendor3 = CPUID_VENDOR_AMD_3,
266 .features = PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
267 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
268 .xlevel = 0x80000008,
269 /* XXX: put another string ? */
270 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
274 /* original is on level 10 */
279 .features = PPRO_FEATURES |
280 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_VME,
281 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
282 * CPUID_HT | CPUID_TM | CPUID_PBE */
283 /* Some CPUs got no CPUID_SEP */
284 .ext_features = CPUID_EXT_MONITOR |
285 CPUID_EXT_SSE3 /* PNI */ | CPUID_EXT_SSSE3,
286 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
287 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
288 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_NX,
289 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
290 .xlevel = 0x8000000A,
291 .model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
295 static void host_cpuid(uint32_t function, uint32_t count, uint32_t *eax,
296 uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
298 static int cpu_x86_fill_model_id(char *str)
300 uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
303 for (i = 0; i < 3; i++) {
304 host_cpuid(0x80000002 + i, 0, &eax, &ebx, &ecx, &edx);
305 memcpy(str + i * 16 + 0, &eax, 4);
306 memcpy(str + i * 16 + 4, &ebx, 4);
307 memcpy(str + i * 16 + 8, &ecx, 4);
308 memcpy(str + i * 16 + 12, &edx, 4);
313 static int cpu_x86_fill_host(x86_def_t *x86_cpu_def)
315 uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
317 x86_cpu_def->name = "host";
318 host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx);
319 x86_cpu_def->level = eax;
320 x86_cpu_def->vendor1 = ebx;
321 x86_cpu_def->vendor2 = edx;
322 x86_cpu_def->vendor3 = ecx;
324 host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx);
325 x86_cpu_def->family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
326 x86_cpu_def->model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12);
327 x86_cpu_def->stepping = eax & 0x0F;
328 x86_cpu_def->ext_features = ecx;
329 x86_cpu_def->features = edx;
331 host_cpuid(0x80000000, 0, &eax, &ebx, &ecx, &edx);
332 x86_cpu_def->xlevel = eax;
334 host_cpuid(0x80000001, 0, &eax, &ebx, &ecx, &edx);
335 x86_cpu_def->ext2_features = edx;
336 x86_cpu_def->ext3_features = ecx;
337 cpu_x86_fill_model_id(x86_cpu_def->model_id);
338 x86_cpu_def->vendor_override = 0;
343 static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
348 char *s = strdup(cpu_model);
349 char *featurestr, *name = strtok(s, ",");
350 uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0;
351 uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0;
352 int family = -1, model = -1, stepping = -1;
355 for (i = 0; i < ARRAY_SIZE(x86_defs); i++) {
356 if (strcmp(name, x86_defs[i].name) == 0) {
361 if (kvm_enabled() && strcmp(name, "host") == 0) {
362 cpu_x86_fill_host(x86_cpu_def);
366 memcpy(x86_cpu_def, def, sizeof(*def));
369 add_flagname_to_bitmaps("hypervisor", &plus_features,
370 &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
372 featurestr = strtok(NULL, ",");
376 if (featurestr[0] == '+') {
377 add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
378 } else if (featurestr[0] == '-') {
379 add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
380 } else if ((val = strchr(featurestr, '='))) {
382 if (!strcmp(featurestr, "family")) {
384 family = strtol(val, &err, 10);
385 if (!*val || *err || family < 0) {
386 fprintf(stderr, "bad numerical value %s\n", val);
389 x86_cpu_def->family = family;
390 } else if (!strcmp(featurestr, "model")) {
392 model = strtol(val, &err, 10);
393 if (!*val || *err || model < 0 || model > 0xff) {
394 fprintf(stderr, "bad numerical value %s\n", val);
397 x86_cpu_def->model = model;
398 } else if (!strcmp(featurestr, "stepping")) {
400 stepping = strtol(val, &err, 10);
401 if (!*val || *err || stepping < 0 || stepping > 0xf) {
402 fprintf(stderr, "bad numerical value %s\n", val);
405 x86_cpu_def->stepping = stepping;
406 } else if (!strcmp(featurestr, "vendor")) {
407 if (strlen(val) != 12) {
408 fprintf(stderr, "vendor string must be 12 chars long\n");
411 x86_cpu_def->vendor1 = 0;
412 x86_cpu_def->vendor2 = 0;
413 x86_cpu_def->vendor3 = 0;
414 for(i = 0; i < 4; i++) {
415 x86_cpu_def->vendor1 |= ((uint8_t)val[i ]) << (8 * i);
416 x86_cpu_def->vendor2 |= ((uint8_t)val[i + 4]) << (8 * i);
417 x86_cpu_def->vendor3 |= ((uint8_t)val[i + 8]) << (8 * i);
419 x86_cpu_def->vendor_override = 1;
420 } else if (!strcmp(featurestr, "model_id")) {
421 pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
424 fprintf(stderr, "unrecognized feature %s\n", featurestr);
428 fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
431 featurestr = strtok(NULL, ",");
433 x86_cpu_def->features |= plus_features;
434 x86_cpu_def->ext_features |= plus_ext_features;
435 x86_cpu_def->ext2_features |= plus_ext2_features;
436 x86_cpu_def->ext3_features |= plus_ext3_features;
437 x86_cpu_def->features &= ~minus_features;
438 x86_cpu_def->ext_features &= ~minus_ext_features;
439 x86_cpu_def->ext2_features &= ~minus_ext2_features;
440 x86_cpu_def->ext3_features &= ~minus_ext3_features;
449 void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
453 for (i = 0; i < ARRAY_SIZE(x86_defs); i++)
454 (*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
457 static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
459 x86_def_t def1, *def = &def1;
461 if (cpu_x86_find_by_name(def, cpu_model) < 0)
464 env->cpuid_vendor1 = def->vendor1;
465 env->cpuid_vendor2 = def->vendor2;
466 env->cpuid_vendor3 = def->vendor3;
468 env->cpuid_vendor1 = CPUID_VENDOR_INTEL_1;
469 env->cpuid_vendor2 = CPUID_VENDOR_INTEL_2;
470 env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
472 env->cpuid_vendor_override = def->vendor_override;
473 env->cpuid_level = def->level;
474 if (def->family > 0x0f)
475 env->cpuid_version = 0xf00 | ((def->family - 0x0f) << 20);
477 env->cpuid_version = def->family << 8;
478 env->cpuid_version |= ((def->model & 0xf) << 4) | ((def->model >> 4) << 16);
479 env->cpuid_version |= def->stepping;
480 env->cpuid_features = def->features;
481 env->pat = 0x0007040600070406ULL;
482 env->cpuid_ext_features = def->ext_features;
483 env->cpuid_ext2_features = def->ext2_features;
484 env->cpuid_xlevel = def->xlevel;
485 env->cpuid_ext3_features = def->ext3_features;
487 const char *model_id = def->model_id;
491 len = strlen(model_id);
492 for(i = 0; i < 48; i++) {
496 c = (uint8_t)model_id[i];
497 env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
503 /* NOTE: must be called outside the CPU execute loop */
504 void cpu_reset(CPUX86State *env)
508 if (qemu_loglevel_mask(CPU_LOG_RESET)) {
509 qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
510 log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP);
513 memset(env, 0, offsetof(CPUX86State, breakpoints));
517 env->old_exception = -1;
519 /* init to reset state */
521 #ifdef CONFIG_SOFTMMU
522 env->hflags |= HF_SOFTMMU_MASK;
524 env->hflags2 |= HF2_GIF_MASK;
526 cpu_x86_update_cr0(env, 0x60000010);
527 env->a20_mask = ~0x0;
528 env->smbase = 0x30000;
530 env->idt.limit = 0xffff;
531 env->gdt.limit = 0xffff;
532 env->ldt.limit = 0xffff;
533 env->ldt.flags = DESC_P_MASK | (2 << DESC_TYPE_SHIFT);
534 env->tr.limit = 0xffff;
535 env->tr.flags = DESC_P_MASK | (11 << DESC_TYPE_SHIFT);
537 cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff,
538 DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK |
539 DESC_R_MASK | DESC_A_MASK);
540 cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff,
541 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
543 cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff,
544 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
546 cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff,
547 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
549 cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff,
550 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
552 cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff,
553 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
557 env->regs[R_EDX] = env->cpuid_version;
562 for(i = 0;i < 8; i++)
568 memset(env->dr, 0, sizeof(env->dr));
569 env->dr[6] = DR6_FIXED_1;
570 env->dr[7] = DR7_FIXED_1;
571 cpu_breakpoint_remove_all(env, BP_CPU);
572 cpu_watchpoint_remove_all(env, BP_CPU);
575 void cpu_x86_close(CPUX86State *env)
580 /***********************************************************/
583 static const char *cc_op_str[] = {
639 cpu_x86_dump_seg_cache(CPUState *env, FILE *f,
640 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
641 const char *name, struct SegmentCache *sc)
644 if (env->hflags & HF_CS64_MASK) {
645 cpu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
646 sc->selector, sc->base, sc->limit, sc->flags);
650 cpu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
651 (uint32_t)sc->base, sc->limit, sc->flags);
654 if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
657 cpu_fprintf(f, " DPL=%d ", (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
658 if (sc->flags & DESC_S_MASK) {
659 if (sc->flags & DESC_CS_MASK) {
660 cpu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
661 ((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
662 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
663 (sc->flags & DESC_R_MASK) ? 'R' : '-');
665 cpu_fprintf(f, (sc->flags & DESC_B_MASK) ? "DS " : "DS16");
666 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
667 (sc->flags & DESC_W_MASK) ? 'W' : '-');
669 cpu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
671 static const char *sys_type_name[2][16] = {
673 "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
674 "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
675 "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
676 "CallGate32", "Reserved", "IntGate32", "TrapGate32"
679 "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
680 "Reserved", "Reserved", "Reserved", "Reserved",
681 "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
682 "Reserved", "IntGate64", "TrapGate64"
685 cpu_fprintf(f, sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
686 [(sc->flags & DESC_TYPE_MASK)
687 >> DESC_TYPE_SHIFT]);
690 cpu_fprintf(f, "\n");
693 void cpu_dump_state(CPUState *env, FILE *f,
694 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
699 static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
702 kvm_arch_get_registers(env);
704 eflags = env->eflags;
706 if (env->hflags & HF_CS64_MASK) {
708 "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
709 "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
710 "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
711 "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
712 "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
730 eflags & DF_MASK ? 'D' : '-',
731 eflags & CC_O ? 'O' : '-',
732 eflags & CC_S ? 'S' : '-',
733 eflags & CC_Z ? 'Z' : '-',
734 eflags & CC_A ? 'A' : '-',
735 eflags & CC_P ? 'P' : '-',
736 eflags & CC_C ? 'C' : '-',
737 env->hflags & HF_CPL_MASK,
738 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
739 (int)(env->a20_mask >> 20) & 1,
740 (env->hflags >> HF_SMM_SHIFT) & 1,
745 cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
746 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
747 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
748 (uint32_t)env->regs[R_EAX],
749 (uint32_t)env->regs[R_EBX],
750 (uint32_t)env->regs[R_ECX],
751 (uint32_t)env->regs[R_EDX],
752 (uint32_t)env->regs[R_ESI],
753 (uint32_t)env->regs[R_EDI],
754 (uint32_t)env->regs[R_EBP],
755 (uint32_t)env->regs[R_ESP],
756 (uint32_t)env->eip, eflags,
757 eflags & DF_MASK ? 'D' : '-',
758 eflags & CC_O ? 'O' : '-',
759 eflags & CC_S ? 'S' : '-',
760 eflags & CC_Z ? 'Z' : '-',
761 eflags & CC_A ? 'A' : '-',
762 eflags & CC_P ? 'P' : '-',
763 eflags & CC_C ? 'C' : '-',
764 env->hflags & HF_CPL_MASK,
765 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
766 (int)(env->a20_mask >> 20) & 1,
767 (env->hflags >> HF_SMM_SHIFT) & 1,
771 for(i = 0; i < 6; i++) {
772 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, seg_name[i],
775 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "LDT", &env->ldt);
776 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "TR", &env->tr);
779 if (env->hflags & HF_LMA_MASK) {
780 cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
781 env->gdt.base, env->gdt.limit);
782 cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
783 env->idt.base, env->idt.limit);
784 cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
785 (uint32_t)env->cr[0],
788 (uint32_t)env->cr[4]);
789 for(i = 0; i < 4; i++)
790 cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
791 cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
792 env->dr[6], env->dr[7]);
796 cpu_fprintf(f, "GDT= %08x %08x\n",
797 (uint32_t)env->gdt.base, env->gdt.limit);
798 cpu_fprintf(f, "IDT= %08x %08x\n",
799 (uint32_t)env->idt.base, env->idt.limit);
800 cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
801 (uint32_t)env->cr[0],
802 (uint32_t)env->cr[2],
803 (uint32_t)env->cr[3],
804 (uint32_t)env->cr[4]);
805 for(i = 0; i < 4; i++)
806 cpu_fprintf(f, "DR%d=%08x ", i, env->dr[i]);
807 cpu_fprintf(f, "\nDR6=%08x DR7=%08x\n", env->dr[6], env->dr[7]);
809 if (flags & X86_DUMP_CCOP) {
810 if ((unsigned)env->cc_op < CC_OP_NB)
811 snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
813 snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
815 if (env->hflags & HF_CS64_MASK) {
816 cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
817 env->cc_src, env->cc_dst,
822 cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
823 (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
827 if (flags & X86_DUMP_FPU) {
830 for(i = 0; i < 8; i++) {
831 fptag |= ((!env->fptags[i]) << i);
833 cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
835 (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
840 #if defined(USE_X86LDOUBLE)
848 tmp.d = env->fpregs[i].d;
849 cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
850 i, tmp.l.lower, tmp.l.upper);
852 cpu_fprintf(f, "FPR%d=%016" PRIx64,
853 i, env->fpregs[i].mmx.q);
856 cpu_fprintf(f, "\n");
860 if (env->hflags & HF_CS64_MASK)
865 cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
867 env->xmm_regs[i].XMM_L(3),
868 env->xmm_regs[i].XMM_L(2),
869 env->xmm_regs[i].XMM_L(1),
870 env->xmm_regs[i].XMM_L(0));
872 cpu_fprintf(f, "\n");
879 /***********************************************************/
881 /* XXX: add PGE support */
883 void cpu_x86_set_a20(CPUX86State *env, int a20_state)
885 a20_state = (a20_state != 0);
886 if (a20_state != ((env->a20_mask >> 20) & 1)) {
887 #if defined(DEBUG_MMU)
888 printf("A20 update: a20=%d\n", a20_state);
890 /* if the cpu is currently executing code, we must unlink it and
891 all the potentially executing TB */
892 cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
894 /* when a20 is changed, all the MMU mappings are invalid, so
895 we must flush everything */
897 env->a20_mask = (~0x100000) | (a20_state << 20);
901 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
905 #if defined(DEBUG_MMU)
906 printf("CR0 update: CR0=0x%08x\n", new_cr0);
908 if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
909 (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
914 if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
915 (env->efer & MSR_EFER_LME)) {
916 /* enter in long mode */
917 /* XXX: generate an exception */
918 if (!(env->cr[4] & CR4_PAE_MASK))
920 env->efer |= MSR_EFER_LMA;
921 env->hflags |= HF_LMA_MASK;
922 } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
923 (env->efer & MSR_EFER_LMA)) {
925 env->efer &= ~MSR_EFER_LMA;
926 env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
927 env->eip &= 0xffffffff;
930 env->cr[0] = new_cr0 | CR0_ET_MASK;
932 /* update PE flag in hidden flags */
933 pe_state = (env->cr[0] & CR0_PE_MASK);
934 env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
935 /* ensure that ADDSEG is always set in real mode */
936 env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
937 /* update FPU flags */
938 env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
939 ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
942 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
944 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
946 env->cr[3] = new_cr3;
947 if (env->cr[0] & CR0_PG_MASK) {
948 #if defined(DEBUG_MMU)
949 printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
955 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
957 #if defined(DEBUG_MMU)
958 printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
960 if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
961 (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
965 if (!(env->cpuid_features & CPUID_SSE))
966 new_cr4 &= ~CR4_OSFXSR_MASK;
967 if (new_cr4 & CR4_OSFXSR_MASK)
968 env->hflags |= HF_OSFXSR_MASK;
970 env->hflags &= ~HF_OSFXSR_MASK;
972 env->cr[4] = new_cr4;
975 #if defined(CONFIG_USER_ONLY)
977 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
978 int is_write, int mmu_idx, int is_softmmu)
980 /* user mode only emulation */
983 env->error_code = (is_write << PG_ERROR_W_BIT);
984 env->error_code |= PG_ERROR_U_MASK;
985 env->exception_index = EXCP0E_PAGE;
989 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
996 /* XXX: This value should match the one returned by CPUID
998 #if defined(CONFIG_KQEMU)
999 #define PHYS_ADDR_MASK 0xfffff000LL
1001 # if defined(TARGET_X86_64)
1002 # define PHYS_ADDR_MASK 0xfffffff000LL
1004 # define PHYS_ADDR_MASK 0xffffff000LL
1009 -1 = cannot handle fault
1010 0 = nothing more to do
1011 1 = generate PF fault
1012 2 = soft MMU activation required for this block
1014 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
1015 int is_write1, int mmu_idx, int is_softmmu)
1018 target_ulong pde_addr, pte_addr;
1019 int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
1020 target_phys_addr_t paddr;
1021 uint32_t page_offset;
1022 target_ulong vaddr, virt_addr;
1024 is_user = mmu_idx == MMU_USER_IDX;
1025 #if defined(DEBUG_MMU)
1026 printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
1027 addr, is_write1, is_user, env->eip);
1029 is_write = is_write1 & 1;
1031 if (!(env->cr[0] & CR0_PG_MASK)) {
1033 virt_addr = addr & TARGET_PAGE_MASK;
1034 prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
1039 if (env->cr[4] & CR4_PAE_MASK) {
1041 target_ulong pdpe_addr;
1043 #ifdef TARGET_X86_64
1044 if (env->hflags & HF_LMA_MASK) {
1045 uint64_t pml4e_addr, pml4e;
1048 /* test virtual address sign extension */
1049 sext = (int64_t)addr >> 47;
1050 if (sext != 0 && sext != -1) {
1051 env->error_code = 0;
1052 env->exception_index = EXCP0D_GPF;
1056 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1058 pml4e = ldq_phys(pml4e_addr);
1059 if (!(pml4e & PG_PRESENT_MASK)) {
1063 if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
1064 error_code = PG_ERROR_RSVD_MASK;
1067 if (!(pml4e & PG_ACCESSED_MASK)) {
1068 pml4e |= PG_ACCESSED_MASK;
1069 stl_phys_notdirty(pml4e_addr, pml4e);
1071 ptep = pml4e ^ PG_NX_MASK;
1072 pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
1074 pdpe = ldq_phys(pdpe_addr);
1075 if (!(pdpe & PG_PRESENT_MASK)) {
1079 if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
1080 error_code = PG_ERROR_RSVD_MASK;
1083 ptep &= pdpe ^ PG_NX_MASK;
1084 if (!(pdpe & PG_ACCESSED_MASK)) {
1085 pdpe |= PG_ACCESSED_MASK;
1086 stl_phys_notdirty(pdpe_addr, pdpe);
1091 /* XXX: load them when cr3 is loaded ? */
1092 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1094 pdpe = ldq_phys(pdpe_addr);
1095 if (!(pdpe & PG_PRESENT_MASK)) {
1099 ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
1102 pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
1104 pde = ldq_phys(pde_addr);
1105 if (!(pde & PG_PRESENT_MASK)) {
1109 if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
1110 error_code = PG_ERROR_RSVD_MASK;
1113 ptep &= pde ^ PG_NX_MASK;
1114 if (pde & PG_PSE_MASK) {
1116 page_size = 2048 * 1024;
1118 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1119 goto do_fault_protect;
1121 if (!(ptep & PG_USER_MASK))
1122 goto do_fault_protect;
1123 if (is_write && !(ptep & PG_RW_MASK))
1124 goto do_fault_protect;
1126 if ((env->cr[0] & CR0_WP_MASK) &&
1127 is_write && !(ptep & PG_RW_MASK))
1128 goto do_fault_protect;
1130 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1131 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1132 pde |= PG_ACCESSED_MASK;
1134 pde |= PG_DIRTY_MASK;
1135 stl_phys_notdirty(pde_addr, pde);
1137 /* align to page_size */
1138 pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
1139 virt_addr = addr & ~(page_size - 1);
1142 if (!(pde & PG_ACCESSED_MASK)) {
1143 pde |= PG_ACCESSED_MASK;
1144 stl_phys_notdirty(pde_addr, pde);
1146 pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
1148 pte = ldq_phys(pte_addr);
1149 if (!(pte & PG_PRESENT_MASK)) {
1153 if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
1154 error_code = PG_ERROR_RSVD_MASK;
1157 /* combine pde and pte nx, user and rw protections */
1158 ptep &= pte ^ PG_NX_MASK;
1160 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1161 goto do_fault_protect;
1163 if (!(ptep & PG_USER_MASK))
1164 goto do_fault_protect;
1165 if (is_write && !(ptep & PG_RW_MASK))
1166 goto do_fault_protect;
1168 if ((env->cr[0] & CR0_WP_MASK) &&
1169 is_write && !(ptep & PG_RW_MASK))
1170 goto do_fault_protect;
1172 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1173 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1174 pte |= PG_ACCESSED_MASK;
1176 pte |= PG_DIRTY_MASK;
1177 stl_phys_notdirty(pte_addr, pte);
1180 virt_addr = addr & ~0xfff;
1181 pte = pte & (PHYS_ADDR_MASK | 0xfff);
1186 /* page directory entry */
1187 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
1189 pde = ldl_phys(pde_addr);
1190 if (!(pde & PG_PRESENT_MASK)) {
1194 /* if PSE bit is set, then we use a 4MB page */
1195 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1196 page_size = 4096 * 1024;
1198 if (!(pde & PG_USER_MASK))
1199 goto do_fault_protect;
1200 if (is_write && !(pde & PG_RW_MASK))
1201 goto do_fault_protect;
1203 if ((env->cr[0] & CR0_WP_MASK) &&
1204 is_write && !(pde & PG_RW_MASK))
1205 goto do_fault_protect;
1207 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1208 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1209 pde |= PG_ACCESSED_MASK;
1211 pde |= PG_DIRTY_MASK;
1212 stl_phys_notdirty(pde_addr, pde);
1215 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1217 virt_addr = addr & ~(page_size - 1);
1219 if (!(pde & PG_ACCESSED_MASK)) {
1220 pde |= PG_ACCESSED_MASK;
1221 stl_phys_notdirty(pde_addr, pde);
1224 /* page directory entry */
1225 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
1227 pte = ldl_phys(pte_addr);
1228 if (!(pte & PG_PRESENT_MASK)) {
1232 /* combine pde and pte user and rw protections */
1235 if (!(ptep & PG_USER_MASK))
1236 goto do_fault_protect;
1237 if (is_write && !(ptep & PG_RW_MASK))
1238 goto do_fault_protect;
1240 if ((env->cr[0] & CR0_WP_MASK) &&
1241 is_write && !(ptep & PG_RW_MASK))
1242 goto do_fault_protect;
1244 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1245 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1246 pte |= PG_ACCESSED_MASK;
1248 pte |= PG_DIRTY_MASK;
1249 stl_phys_notdirty(pte_addr, pte);
1252 virt_addr = addr & ~0xfff;
1255 /* the page can be put in the TLB */
1257 if (!(ptep & PG_NX_MASK))
1259 if (pte & PG_DIRTY_MASK) {
1260 /* only set write access if already dirty... otherwise wait
1263 if (ptep & PG_RW_MASK)
1266 if (!(env->cr[0] & CR0_WP_MASK) ||
1267 (ptep & PG_RW_MASK))
1272 pte = pte & env->a20_mask;
1274 /* Even if 4MB pages, we map only one 4KB page in the cache to
1275 avoid filling it too fast */
1276 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1277 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1278 vaddr = virt_addr + page_offset;
1280 ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
1283 error_code = PG_ERROR_P_MASK;
1285 error_code |= (is_write << PG_ERROR_W_BIT);
1287 error_code |= PG_ERROR_U_MASK;
1288 if (is_write1 == 2 &&
1289 (env->efer & MSR_EFER_NXE) &&
1290 (env->cr[4] & CR4_PAE_MASK))
1291 error_code |= PG_ERROR_I_D_MASK;
1292 if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
1293 /* cr2 is not modified in case of exceptions */
1294 stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
1299 env->error_code = error_code;
1300 env->exception_index = EXCP0E_PAGE;
1304 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
1306 target_ulong pde_addr, pte_addr;
1308 target_phys_addr_t paddr;
1309 uint32_t page_offset;
1312 if (env->cr[4] & CR4_PAE_MASK) {
1313 target_ulong pdpe_addr;
1316 #ifdef TARGET_X86_64
1317 if (env->hflags & HF_LMA_MASK) {
1318 uint64_t pml4e_addr, pml4e;
1321 /* test virtual address sign extension */
1322 sext = (int64_t)addr >> 47;
1323 if (sext != 0 && sext != -1)
1326 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1328 pml4e = ldq_phys(pml4e_addr);
1329 if (!(pml4e & PG_PRESENT_MASK))
1332 pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
1334 pdpe = ldq_phys(pdpe_addr);
1335 if (!(pdpe & PG_PRESENT_MASK))
1340 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1342 pdpe = ldq_phys(pdpe_addr);
1343 if (!(pdpe & PG_PRESENT_MASK))
1347 pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
1349 pde = ldq_phys(pde_addr);
1350 if (!(pde & PG_PRESENT_MASK)) {
1353 if (pde & PG_PSE_MASK) {
1355 page_size = 2048 * 1024;
1356 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1359 pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
1362 pte = ldq_phys(pte_addr);
1364 if (!(pte & PG_PRESENT_MASK))
1369 if (!(env->cr[0] & CR0_PG_MASK)) {
1373 /* page directory entry */
1374 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
1375 pde = ldl_phys(pde_addr);
1376 if (!(pde & PG_PRESENT_MASK))
1378 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1379 pte = pde & ~0x003ff000; /* align to 4MB */
1380 page_size = 4096 * 1024;
1382 /* page directory entry */
1383 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
1384 pte = ldl_phys(pte_addr);
1385 if (!(pte & PG_PRESENT_MASK))
1390 pte = pte & env->a20_mask;
1393 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1394 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1398 void hw_breakpoint_insert(CPUState *env, int index)
1402 switch (hw_breakpoint_type(env->dr[7], index)) {
1404 if (hw_breakpoint_enabled(env->dr[7], index))
1405 err = cpu_breakpoint_insert(env, env->dr[index], BP_CPU,
1406 &env->cpu_breakpoint[index]);
1409 type = BP_CPU | BP_MEM_WRITE;
1412 /* No support for I/O watchpoints yet */
1415 type = BP_CPU | BP_MEM_ACCESS;
1417 err = cpu_watchpoint_insert(env, env->dr[index],
1418 hw_breakpoint_len(env->dr[7], index),
1419 type, &env->cpu_watchpoint[index]);
1423 env->cpu_breakpoint[index] = NULL;
1426 void hw_breakpoint_remove(CPUState *env, int index)
1428 if (!env->cpu_breakpoint[index])
1430 switch (hw_breakpoint_type(env->dr[7], index)) {
1432 if (hw_breakpoint_enabled(env->dr[7], index))
1433 cpu_breakpoint_remove_by_ref(env, env->cpu_breakpoint[index]);
1437 cpu_watchpoint_remove_by_ref(env, env->cpu_watchpoint[index]);
1440 /* No support for I/O watchpoints yet */
1445 int check_hw_breakpoints(CPUState *env, int force_dr6_update)
1449 int hit_enabled = 0;
1451 dr6 = env->dr[6] & ~0xf;
1452 for (reg = 0; reg < 4; reg++) {
1453 type = hw_breakpoint_type(env->dr[7], reg);
1454 if ((type == 0 && env->dr[reg] == env->eip) ||
1455 ((type & 1) && env->cpu_watchpoint[reg] &&
1456 (env->cpu_watchpoint[reg]->flags & BP_WATCHPOINT_HIT))) {
1458 if (hw_breakpoint_enabled(env->dr[7], reg))
1462 if (hit_enabled || force_dr6_update)
1467 static CPUDebugExcpHandler *prev_debug_excp_handler;
1469 void raise_exception(int exception_index);
1471 static void breakpoint_handler(CPUState *env)
1475 if (env->watchpoint_hit) {
1476 if (env->watchpoint_hit->flags & BP_CPU) {
1477 env->watchpoint_hit = NULL;
1478 if (check_hw_breakpoints(env, 0))
1479 raise_exception(EXCP01_DB);
1481 cpu_resume_from_signal(env, NULL);
1484 TAILQ_FOREACH(bp, &env->breakpoints, entry)
1485 if (bp->pc == env->eip) {
1486 if (bp->flags & BP_CPU) {
1487 check_hw_breakpoints(env, 1);
1488 raise_exception(EXCP01_DB);
1493 if (prev_debug_excp_handler)
1494 prev_debug_excp_handler(env);
1497 /* This should come from sysemu.h - if we could include it here... */
1498 void qemu_system_reset_request(void);
1500 void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status,
1501 uint64_t mcg_status, uint64_t addr, uint64_t misc)
1503 uint64_t mcg_cap = cenv->mcg_cap;
1504 unsigned bank_num = mcg_cap & 0xff;
1505 uint64_t *banks = cenv->mce_banks;
1507 if (bank >= bank_num || !(status & MCI_STATUS_VAL))
1511 * if MSR_MCG_CTL is not all 1s, the uncorrected error
1512 * reporting is disabled
1514 if ((status & MCI_STATUS_UC) && (mcg_cap & MCG_CTL_P) &&
1515 cenv->mcg_ctl != ~(uint64_t)0)
1519 * if MSR_MCi_CTL is not all 1s, the uncorrected error
1520 * reporting is disabled for the bank
1522 if ((status & MCI_STATUS_UC) && banks[0] != ~(uint64_t)0)
1524 if (status & MCI_STATUS_UC) {
1525 if ((cenv->mcg_status & MCG_STATUS_MCIP) ||
1526 !(cenv->cr[4] & CR4_MCE_MASK)) {
1527 fprintf(stderr, "injects mce exception while previous "
1528 "one is in progress!\n");
1529 qemu_log_mask(CPU_LOG_RESET, "Triple fault\n");
1530 qemu_system_reset_request();
1533 if (banks[1] & MCI_STATUS_VAL)
1534 status |= MCI_STATUS_OVER;
1537 cenv->mcg_status = mcg_status;
1539 cpu_interrupt(cenv, CPU_INTERRUPT_MCE);
1540 } else if (!(banks[1] & MCI_STATUS_VAL)
1541 || !(banks[1] & MCI_STATUS_UC)) {
1542 if (banks[1] & MCI_STATUS_VAL)
1543 status |= MCI_STATUS_OVER;
1548 banks[1] |= MCI_STATUS_OVER;
1550 #endif /* !CONFIG_USER_ONLY */
1552 static void mce_init(CPUX86State *cenv)
1554 unsigned int bank, bank_num;
1556 if (((cenv->cpuid_version >> 8)&0xf) >= 6
1557 && (cenv->cpuid_features&(CPUID_MCE|CPUID_MCA)) == (CPUID_MCE|CPUID_MCA)) {
1558 cenv->mcg_cap = MCE_CAP_DEF | MCE_BANKS_DEF;
1559 cenv->mcg_ctl = ~(uint64_t)0;
1560 bank_num = cenv->mcg_cap & 0xff;
1561 cenv->mce_banks = qemu_mallocz(bank_num * sizeof(uint64_t) * 4);
1562 for (bank = 0; bank < bank_num; bank++)
1563 cenv->mce_banks[bank*4] = ~(uint64_t)0;
1567 static void host_cpuid(uint32_t function, uint32_t count,
1568 uint32_t *eax, uint32_t *ebx,
1569 uint32_t *ecx, uint32_t *edx)
1571 #if defined(CONFIG_KVM)
1575 asm volatile("cpuid"
1576 : "=a"(vec[0]), "=b"(vec[1]),
1577 "=c"(vec[2]), "=d"(vec[3])
1578 : "0"(function), "c"(count) : "cc");
1580 asm volatile("pusha \n\t"
1582 "mov %%eax, 0(%2) \n\t"
1583 "mov %%ebx, 4(%2) \n\t"
1584 "mov %%ecx, 8(%2) \n\t"
1585 "mov %%edx, 12(%2) \n\t"
1587 : : "a"(function), "c"(count), "S"(vec)
1602 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
1603 uint32_t *eax, uint32_t *ebx,
1604 uint32_t *ecx, uint32_t *edx)
1606 /* test if maximum index reached */
1607 if (index & 0x80000000) {
1608 if (index > env->cpuid_xlevel)
1609 index = env->cpuid_level;
1611 if (index > env->cpuid_level)
1612 index = env->cpuid_level;
1617 *eax = env->cpuid_level;
1618 *ebx = env->cpuid_vendor1;
1619 *edx = env->cpuid_vendor2;
1620 *ecx = env->cpuid_vendor3;
1622 /* sysenter isn't supported on compatibility mode on AMD. and syscall
1623 * isn't supported in compatibility mode on Intel. so advertise the
1624 * actuall cpu, and say goodbye to migration between different vendors
1625 * is you use compatibility mode. */
1626 if (kvm_enabled() && !env->cpuid_vendor_override)
1627 host_cpuid(0, 0, NULL, ebx, ecx, edx);
1630 *eax = env->cpuid_version;
1631 *ebx = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1632 *ecx = env->cpuid_ext_features;
1633 *edx = env->cpuid_features;
1636 /* cache info: needed for Pentium Pro compatibility */
1643 /* cache info: needed for Core compatibility */
1645 case 0: /* L1 dcache info */
1651 case 1: /* L1 icache info */
1657 case 2: /* L2 cache info */
1663 default: /* end of info */
1672 /* mwait info: needed for Core compatibility */
1673 *eax = 0; /* Smallest monitor-line size in bytes */
1674 *ebx = 0; /* Largest monitor-line size in bytes */
1675 *ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
1679 /* Thermal and Power Leaf */
1686 /* Direct Cache Access Information Leaf */
1687 *eax = 0; /* Bits 0-31 in DCA_CAP MSR */
1693 /* Architectural Performance Monitoring Leaf */
1700 *eax = env->cpuid_xlevel;
1701 *ebx = env->cpuid_vendor1;
1702 *edx = env->cpuid_vendor2;
1703 *ecx = env->cpuid_vendor3;
1706 *eax = env->cpuid_version;
1708 *ecx = env->cpuid_ext3_features;
1709 *edx = env->cpuid_ext2_features;
1711 if (kvm_enabled()) {
1712 /* Nested SVM not yet supported in KVM */
1713 *ecx &= ~CPUID_EXT3_SVM;
1715 /* AMD 3DNow! is not supported in QEMU */
1716 *edx &= ~(CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT);
1722 *eax = env->cpuid_model[(index - 0x80000002) * 4 + 0];
1723 *ebx = env->cpuid_model[(index - 0x80000002) * 4 + 1];
1724 *ecx = env->cpuid_model[(index - 0x80000002) * 4 + 2];
1725 *edx = env->cpuid_model[(index - 0x80000002) * 4 + 3];
1728 /* cache info (L1 cache) */
1735 /* cache info (L2 cache) */
1742 /* virtual & phys address size in low 2 bytes. */
1743 /* XXX: This value must match the one used in the MMU code. */
1744 if (env->cpuid_ext2_features & CPUID_EXT2_LM) {
1745 /* 64 bit processor */
1746 #if defined(CONFIG_KQEMU)
1747 *eax = 0x00003020; /* 48 bits virtual, 32 bits physical */
1749 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1750 *eax = 0x00003028; /* 48 bits virtual, 40 bits physical */
1753 #if defined(CONFIG_KQEMU)
1754 *eax = 0x00000020; /* 32 bits physical */
1756 if (env->cpuid_features & CPUID_PSE36)
1757 *eax = 0x00000024; /* 36 bits physical */
1759 *eax = 0x00000020; /* 32 bits physical */
1767 *eax = 0x00000001; /* SVM Revision */
1768 *ebx = 0x00000010; /* nr of ASIDs */
1770 *edx = 0; /* optional features */
1773 /* reserved values: zero */
1783 int cpu_x86_get_descr_debug(CPUX86State *env, unsigned int selector,
1784 target_ulong *base, unsigned int *limit,
1785 unsigned int *flags)
1796 index = selector & ~7;
1797 ptr = dt->base + index;
1798 if ((index + 7) > dt->limit
1799 || cpu_memory_rw_debug(env, ptr, (uint8_t *)&e1, sizeof(e1), 0) != 0
1800 || cpu_memory_rw_debug(env, ptr+4, (uint8_t *)&e2, sizeof(e2), 0) != 0)
1803 *base = ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000));
1804 *limit = (e1 & 0xffff) | (e2 & 0x000f0000);
1805 if (e2 & DESC_G_MASK)
1806 *limit = (*limit << 12) | 0xfff;
1812 CPUX86State *cpu_x86_init(const char *cpu_model)
1817 env = qemu_mallocz(sizeof(CPUX86State));
1819 env->cpu_model_str = cpu_model;
1821 /* init various static tables */
1824 optimize_flags_init();
1825 #ifndef CONFIG_USER_ONLY
1826 prev_debug_excp_handler =
1827 cpu_set_debug_excp_handler(breakpoint_handler);
1830 if (cpu_x86_register(env, cpu_model) < 0) {
1840 qemu_init_vcpu(env);
1845 #if !defined(CONFIG_USER_ONLY)
1846 void do_cpu_init(CPUState *env)
1848 int sipi = env->interrupt_request & CPU_INTERRUPT_SIPI;
1850 env->interrupt_request = sipi;
1851 apic_init_reset(env);
1854 void do_cpu_sipi(CPUState *env)
1859 void do_cpu_init(CPUState *env)
1862 void do_cpu_sipi(CPUState *env)