2 * i386 helpers (without register variable usage)
4 * Copyright (c) 2003 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
29 #include "qemu-common.h"
34 /* feature flags taken from "Intel Processor Identification and the CPUID
35 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
36 * about feature names, the Linux name is used. */
37 static const char *feature_name[] = {
38 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
39 "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
40 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL, "ds" /* Intel dts */, "acpi", "mmx",
41 "fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe",
43 static const char *ext_feature_name[] = {
44 "pni" /* Intel,AMD sse3 */, NULL, NULL, "monitor", "ds_cpl", "vmx", NULL /* Linux smx */, "est",
45 "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
46 NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
47 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
49 static const char *ext2_feature_name[] = {
50 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
51 "cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall", "mtrr", "pge", "mca", "cmov",
52 "pat", "pse36", NULL, NULL /* Linux mp */, "nx" /* Intel xd */, NULL, "mmxext", "mmx",
53 "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow",
55 static const char *ext3_feature_name[] = {
56 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
57 "3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL, "skinit", "wdt", NULL, NULL,
58 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
59 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
62 static void add_flagname_to_bitmaps(char *flagname, uint32_t *features,
63 uint32_t *ext_features,
64 uint32_t *ext2_features,
65 uint32_t *ext3_features)
70 for ( i = 0 ; i < 32 ; i++ )
71 if (feature_name[i] && !strcmp (flagname, feature_name[i])) {
75 for ( i = 0 ; i < 32 ; i++ )
76 if (ext_feature_name[i] && !strcmp (flagname, ext_feature_name[i])) {
77 *ext_features |= 1 << i;
80 for ( i = 0 ; i < 32 ; i++ )
81 if (ext2_feature_name[i] && !strcmp (flagname, ext2_feature_name[i])) {
82 *ext2_features |= 1 << i;
85 for ( i = 0 ; i < 32 ; i++ )
86 if (ext3_feature_name[i] && !strcmp (flagname, ext3_feature_name[i])) {
87 *ext3_features |= 1 << i;
91 fprintf(stderr, "CPU feature %s not found\n", flagname);
95 static void kvm_trim_features(uint32_t *features, uint32_t supported,
101 for (i = 0; i < 32; ++i) {
103 if ((*features & mask) && !(supported & mask)) {
109 typedef struct x86_def_t {
112 uint32_t vendor1, vendor2, vendor3;
116 uint32_t features, ext_features, ext2_features, ext3_features;
122 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
123 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
124 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX)
125 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
126 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
127 CPUID_PSE36 | CPUID_FXSR)
128 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
129 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
130 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
131 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
132 CPUID_PAE | CPUID_SEP | CPUID_APIC)
133 static x86_def_t x86_defs[] = {
138 .vendor1 = CPUID_VENDOR_AMD_1,
139 .vendor2 = CPUID_VENDOR_AMD_2,
140 .vendor3 = CPUID_VENDOR_AMD_3,
144 .features = PPRO_FEATURES |
145 /* these features are needed for Win64 and aren't fully implemented */
146 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
147 /* this feature is needed for Solaris and isn't fully implemented */
149 .ext_features = CPUID_EXT_SSE3,
150 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
151 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
152 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
153 .ext3_features = CPUID_EXT3_SVM,
154 .xlevel = 0x8000000A,
155 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
160 .vendor1 = CPUID_VENDOR_AMD_1,
161 .vendor2 = CPUID_VENDOR_AMD_2,
162 .vendor3 = CPUID_VENDOR_AMD_3,
166 /* Missing: CPUID_VME, CPUID_HT */
167 .features = PPRO_FEATURES |
168 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
170 /* Missing: CPUID_EXT_CX16, CPUID_EXT_POPCNT */
171 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
172 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
173 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
174 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
175 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_MMXEXT |
177 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
178 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
179 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
180 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
181 .ext3_features = CPUID_EXT3_SVM,
182 .xlevel = 0x8000001A,
183 .model_id = "AMD Phenom(tm) 9550 Quad-Core Processor"
191 /* The original CPU also implements these features:
192 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
193 CPUID_TM, CPUID_PBE */
194 .features = PPRO_FEATURES |
195 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
197 /* The original CPU also implements these ext features:
198 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
199 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
200 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3,
201 .ext2_features = CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
202 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
203 .xlevel = 0x80000008,
204 .model_id = "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
213 .features = PPRO_FEATURES,
214 .ext_features = CPUID_EXT_SSE3,
216 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
224 /* The original CPU also implements these features:
225 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
226 CPUID_TM, CPUID_PBE */
227 .features = PPRO_FEATURES | CPUID_VME |
228 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA,
229 /* The original CPU also implements these ext features:
230 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
232 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
233 .ext2_features = CPUID_EXT2_NX,
234 .xlevel = 0x80000008,
235 .model_id = "Genuine Intel(R) CPU T2600 @ 2.16GHz",
243 .features = I486_FEATURES,
252 .features = PENTIUM_FEATURES,
261 .features = PENTIUM2_FEATURES,
270 .features = PENTIUM3_FEATURES,
276 .vendor1 = 0x68747541, /* "Auth" */
277 .vendor2 = 0x69746e65, /* "enti" */
278 .vendor3 = 0x444d4163, /* "cAMD" */
282 .features = PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
283 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
284 .xlevel = 0x80000008,
285 /* XXX: put another string ? */
286 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
290 /* original is on level 10 */
295 .features = PPRO_FEATURES |
296 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_VME,
297 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
298 * CPUID_HT | CPUID_TM | CPUID_PBE */
299 /* Some CPUs got no CPUID_SEP */
300 .ext_features = CPUID_EXT_MONITOR |
301 CPUID_EXT_SSE3 /* PNI */ | CPUID_EXT_SSSE3,
302 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
303 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
304 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_NX,
305 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
306 .xlevel = 0x8000000A,
307 .model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
311 static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
316 char *s = strdup(cpu_model);
317 char *featurestr, *name = strtok(s, ",");
318 uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0;
319 uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0;
320 int family = -1, model = -1, stepping = -1;
323 for (i = 0; i < ARRAY_SIZE(x86_defs); i++) {
324 if (strcmp(name, x86_defs[i].name) == 0) {
331 memcpy(x86_cpu_def, def, sizeof(*def));
333 featurestr = strtok(NULL, ",");
337 if (featurestr[0] == '+') {
338 add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
339 } else if (featurestr[0] == '-') {
340 add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
341 } else if ((val = strchr(featurestr, '='))) {
343 if (!strcmp(featurestr, "family")) {
345 family = strtol(val, &err, 10);
346 if (!*val || *err || family < 0) {
347 fprintf(stderr, "bad numerical value %s\n", val);
350 x86_cpu_def->family = family;
351 } else if (!strcmp(featurestr, "model")) {
353 model = strtol(val, &err, 10);
354 if (!*val || *err || model < 0 || model > 0xff) {
355 fprintf(stderr, "bad numerical value %s\n", val);
358 x86_cpu_def->model = model;
359 } else if (!strcmp(featurestr, "stepping")) {
361 stepping = strtol(val, &err, 10);
362 if (!*val || *err || stepping < 0 || stepping > 0xf) {
363 fprintf(stderr, "bad numerical value %s\n", val);
366 x86_cpu_def->stepping = stepping;
367 } else if (!strcmp(featurestr, "vendor")) {
368 if (strlen(val) != 12) {
369 fprintf(stderr, "vendor string must be 12 chars long\n");
372 x86_cpu_def->vendor1 = 0;
373 x86_cpu_def->vendor2 = 0;
374 x86_cpu_def->vendor3 = 0;
375 for(i = 0; i < 4; i++) {
376 x86_cpu_def->vendor1 |= ((uint8_t)val[i ]) << (8 * i);
377 x86_cpu_def->vendor2 |= ((uint8_t)val[i + 4]) << (8 * i);
378 x86_cpu_def->vendor3 |= ((uint8_t)val[i + 8]) << (8 * i);
380 x86_cpu_def->vendor_override = 1;
381 } else if (!strcmp(featurestr, "model_id")) {
382 pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
385 fprintf(stderr, "unrecognized feature %s\n", featurestr);
389 fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
392 featurestr = strtok(NULL, ",");
394 x86_cpu_def->features |= plus_features;
395 x86_cpu_def->ext_features |= plus_ext_features;
396 x86_cpu_def->ext2_features |= plus_ext2_features;
397 x86_cpu_def->ext3_features |= plus_ext3_features;
398 x86_cpu_def->features &= ~minus_features;
399 x86_cpu_def->ext_features &= ~minus_ext_features;
400 x86_cpu_def->ext2_features &= ~minus_ext2_features;
401 x86_cpu_def->ext3_features &= ~minus_ext3_features;
410 void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
414 for (i = 0; i < ARRAY_SIZE(x86_defs); i++)
415 (*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
418 static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
420 x86_def_t def1, *def = &def1;
422 if (cpu_x86_find_by_name(def, cpu_model) < 0)
425 env->cpuid_vendor1 = def->vendor1;
426 env->cpuid_vendor2 = def->vendor2;
427 env->cpuid_vendor3 = def->vendor3;
429 env->cpuid_vendor1 = CPUID_VENDOR_INTEL_1;
430 env->cpuid_vendor2 = CPUID_VENDOR_INTEL_2;
431 env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
433 env->cpuid_vendor_override = def->vendor_override;
434 env->cpuid_level = def->level;
435 if (def->family > 0x0f)
436 env->cpuid_version = 0xf00 | ((def->family - 0x0f) << 20);
438 env->cpuid_version = def->family << 8;
439 env->cpuid_version |= ((def->model & 0xf) << 4) | ((def->model >> 4) << 16);
440 env->cpuid_version |= def->stepping;
441 env->cpuid_features = def->features;
442 env->pat = 0x0007040600070406ULL;
443 env->cpuid_ext_features = def->ext_features;
444 env->cpuid_ext2_features = def->ext2_features;
445 env->cpuid_xlevel = def->xlevel;
446 env->cpuid_ext3_features = def->ext3_features;
448 const char *model_id = def->model_id;
452 len = strlen(model_id);
453 for(i = 0; i < 48; i++) {
457 c = (uint8_t)model_id[i];
458 env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
464 /* NOTE: must be called outside the CPU execute loop */
465 void cpu_reset(CPUX86State *env)
469 if (qemu_loglevel_mask(CPU_LOG_RESET)) {
470 qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
471 log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP);
474 memset(env, 0, offsetof(CPUX86State, breakpoints));
478 env->old_exception = -1;
480 /* init to reset state */
482 #ifdef CONFIG_SOFTMMU
483 env->hflags |= HF_SOFTMMU_MASK;
485 env->hflags2 |= HF2_GIF_MASK;
487 cpu_x86_update_cr0(env, 0x60000010);
488 env->a20_mask = ~0x0;
489 env->smbase = 0x30000;
491 env->idt.limit = 0xffff;
492 env->gdt.limit = 0xffff;
493 env->ldt.limit = 0xffff;
494 env->ldt.flags = DESC_P_MASK | (2 << DESC_TYPE_SHIFT);
495 env->tr.limit = 0xffff;
496 env->tr.flags = DESC_P_MASK | (11 << DESC_TYPE_SHIFT);
498 cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff,
499 DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK |
500 DESC_R_MASK | DESC_A_MASK);
501 cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff,
502 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
504 cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff,
505 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
507 cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff,
508 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
510 cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff,
511 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
513 cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff,
514 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
518 env->regs[R_EDX] = env->cpuid_version;
523 for(i = 0;i < 8; i++)
529 memset(env->dr, 0, sizeof(env->dr));
530 env->dr[6] = DR6_FIXED_1;
531 env->dr[7] = DR7_FIXED_1;
532 cpu_breakpoint_remove_all(env, BP_CPU);
533 cpu_watchpoint_remove_all(env, BP_CPU);
536 void cpu_x86_close(CPUX86State *env)
541 /***********************************************************/
544 static const char *cc_op_str[] = {
600 cpu_x86_dump_seg_cache(CPUState *env, FILE *f,
601 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
602 const char *name, struct SegmentCache *sc)
605 if (env->hflags & HF_CS64_MASK) {
606 cpu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
607 sc->selector, sc->base, sc->limit, sc->flags);
611 cpu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
612 (uint32_t)sc->base, sc->limit, sc->flags);
615 if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
618 cpu_fprintf(f, " DPL=%d ", (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
619 if (sc->flags & DESC_S_MASK) {
620 if (sc->flags & DESC_CS_MASK) {
621 cpu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
622 ((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
623 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
624 (sc->flags & DESC_R_MASK) ? 'R' : '-');
626 cpu_fprintf(f, (sc->flags & DESC_B_MASK) ? "DS " : "DS16");
627 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
628 (sc->flags & DESC_W_MASK) ? 'W' : '-');
630 cpu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
632 static const char *sys_type_name[2][16] = {
634 "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
635 "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
636 "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
637 "CallGate32", "Reserved", "IntGate32", "TrapGate32"
640 "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
641 "Reserved", "Reserved", "Reserved", "Reserved",
642 "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
643 "Reserved", "IntGate64", "TrapGate64"
646 cpu_fprintf(f, sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
647 [(sc->flags & DESC_TYPE_MASK)
648 >> DESC_TYPE_SHIFT]);
651 cpu_fprintf(f, "\n");
654 void cpu_dump_state(CPUState *env, FILE *f,
655 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
660 static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
663 kvm_arch_get_registers(env);
665 eflags = env->eflags;
667 if (env->hflags & HF_CS64_MASK) {
669 "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
670 "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
671 "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
672 "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
673 "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
691 eflags & DF_MASK ? 'D' : '-',
692 eflags & CC_O ? 'O' : '-',
693 eflags & CC_S ? 'S' : '-',
694 eflags & CC_Z ? 'Z' : '-',
695 eflags & CC_A ? 'A' : '-',
696 eflags & CC_P ? 'P' : '-',
697 eflags & CC_C ? 'C' : '-',
698 env->hflags & HF_CPL_MASK,
699 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
700 (int)(env->a20_mask >> 20) & 1,
701 (env->hflags >> HF_SMM_SHIFT) & 1,
706 cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
707 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
708 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
709 (uint32_t)env->regs[R_EAX],
710 (uint32_t)env->regs[R_EBX],
711 (uint32_t)env->regs[R_ECX],
712 (uint32_t)env->regs[R_EDX],
713 (uint32_t)env->regs[R_ESI],
714 (uint32_t)env->regs[R_EDI],
715 (uint32_t)env->regs[R_EBP],
716 (uint32_t)env->regs[R_ESP],
717 (uint32_t)env->eip, eflags,
718 eflags & DF_MASK ? 'D' : '-',
719 eflags & CC_O ? 'O' : '-',
720 eflags & CC_S ? 'S' : '-',
721 eflags & CC_Z ? 'Z' : '-',
722 eflags & CC_A ? 'A' : '-',
723 eflags & CC_P ? 'P' : '-',
724 eflags & CC_C ? 'C' : '-',
725 env->hflags & HF_CPL_MASK,
726 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
727 (int)(env->a20_mask >> 20) & 1,
728 (env->hflags >> HF_SMM_SHIFT) & 1,
732 for(i = 0; i < 6; i++) {
733 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, seg_name[i],
736 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "LDT", &env->ldt);
737 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "TR", &env->tr);
740 if (env->hflags & HF_LMA_MASK) {
741 cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
742 env->gdt.base, env->gdt.limit);
743 cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
744 env->idt.base, env->idt.limit);
745 cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
746 (uint32_t)env->cr[0],
749 (uint32_t)env->cr[4]);
750 for(i = 0; i < 4; i++)
751 cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
752 cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
753 env->dr[6], env->dr[7]);
757 cpu_fprintf(f, "GDT= %08x %08x\n",
758 (uint32_t)env->gdt.base, env->gdt.limit);
759 cpu_fprintf(f, "IDT= %08x %08x\n",
760 (uint32_t)env->idt.base, env->idt.limit);
761 cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
762 (uint32_t)env->cr[0],
763 (uint32_t)env->cr[2],
764 (uint32_t)env->cr[3],
765 (uint32_t)env->cr[4]);
766 for(i = 0; i < 4; i++)
767 cpu_fprintf(f, "DR%d=%08x ", i, env->dr[i]);
768 cpu_fprintf(f, "\nDR6=%08x DR7=%08x\n", env->dr[6], env->dr[7]);
770 if (flags & X86_DUMP_CCOP) {
771 if ((unsigned)env->cc_op < CC_OP_NB)
772 snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
774 snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
776 if (env->hflags & HF_CS64_MASK) {
777 cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
778 env->cc_src, env->cc_dst,
783 cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
784 (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
788 if (flags & X86_DUMP_FPU) {
791 for(i = 0; i < 8; i++) {
792 fptag |= ((!env->fptags[i]) << i);
794 cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
796 (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
801 #if defined(USE_X86LDOUBLE)
809 tmp.d = env->fpregs[i].d;
810 cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
811 i, tmp.l.lower, tmp.l.upper);
813 cpu_fprintf(f, "FPR%d=%016" PRIx64,
814 i, env->fpregs[i].mmx.q);
817 cpu_fprintf(f, "\n");
821 if (env->hflags & HF_CS64_MASK)
826 cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
828 env->xmm_regs[i].XMM_L(3),
829 env->xmm_regs[i].XMM_L(2),
830 env->xmm_regs[i].XMM_L(1),
831 env->xmm_regs[i].XMM_L(0));
833 cpu_fprintf(f, "\n");
840 /***********************************************************/
842 /* XXX: add PGE support */
844 void cpu_x86_set_a20(CPUX86State *env, int a20_state)
846 a20_state = (a20_state != 0);
847 if (a20_state != ((env->a20_mask >> 20) & 1)) {
848 #if defined(DEBUG_MMU)
849 printf("A20 update: a20=%d\n", a20_state);
851 /* if the cpu is currently executing code, we must unlink it and
852 all the potentially executing TB */
853 cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
855 /* when a20 is changed, all the MMU mappings are invalid, so
856 we must flush everything */
858 env->a20_mask = (~0x100000) | (a20_state << 20);
862 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
866 #if defined(DEBUG_MMU)
867 printf("CR0 update: CR0=0x%08x\n", new_cr0);
869 if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
870 (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
875 if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
876 (env->efer & MSR_EFER_LME)) {
877 /* enter in long mode */
878 /* XXX: generate an exception */
879 if (!(env->cr[4] & CR4_PAE_MASK))
881 env->efer |= MSR_EFER_LMA;
882 env->hflags |= HF_LMA_MASK;
883 } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
884 (env->efer & MSR_EFER_LMA)) {
886 env->efer &= ~MSR_EFER_LMA;
887 env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
888 env->eip &= 0xffffffff;
891 env->cr[0] = new_cr0 | CR0_ET_MASK;
893 /* update PE flag in hidden flags */
894 pe_state = (env->cr[0] & CR0_PE_MASK);
895 env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
896 /* ensure that ADDSEG is always set in real mode */
897 env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
898 /* update FPU flags */
899 env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
900 ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
903 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
905 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
907 env->cr[3] = new_cr3;
908 if (env->cr[0] & CR0_PG_MASK) {
909 #if defined(DEBUG_MMU)
910 printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
916 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
918 #if defined(DEBUG_MMU)
919 printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
921 if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
922 (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
926 if (!(env->cpuid_features & CPUID_SSE))
927 new_cr4 &= ~CR4_OSFXSR_MASK;
928 if (new_cr4 & CR4_OSFXSR_MASK)
929 env->hflags |= HF_OSFXSR_MASK;
931 env->hflags &= ~HF_OSFXSR_MASK;
933 env->cr[4] = new_cr4;
936 #if defined(CONFIG_USER_ONLY)
938 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
939 int is_write, int mmu_idx, int is_softmmu)
941 /* user mode only emulation */
944 env->error_code = (is_write << PG_ERROR_W_BIT);
945 env->error_code |= PG_ERROR_U_MASK;
946 env->exception_index = EXCP0E_PAGE;
950 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
957 /* XXX: This value should match the one returned by CPUID
959 #if defined(CONFIG_KQEMU)
960 #define PHYS_ADDR_MASK 0xfffff000LL
962 # if defined(TARGET_X86_64)
963 # define PHYS_ADDR_MASK 0xfffffff000LL
965 # define PHYS_ADDR_MASK 0xffffff000LL
970 -1 = cannot handle fault
971 0 = nothing more to do
972 1 = generate PF fault
973 2 = soft MMU activation required for this block
975 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
976 int is_write1, int mmu_idx, int is_softmmu)
979 target_ulong pde_addr, pte_addr;
980 int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
981 target_phys_addr_t paddr;
982 uint32_t page_offset;
983 target_ulong vaddr, virt_addr;
985 is_user = mmu_idx == MMU_USER_IDX;
986 #if defined(DEBUG_MMU)
987 printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
988 addr, is_write1, is_user, env->eip);
990 is_write = is_write1 & 1;
992 if (!(env->cr[0] & CR0_PG_MASK)) {
994 virt_addr = addr & TARGET_PAGE_MASK;
995 prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
1000 if (env->cr[4] & CR4_PAE_MASK) {
1002 target_ulong pdpe_addr;
1004 #ifdef TARGET_X86_64
1005 if (env->hflags & HF_LMA_MASK) {
1006 uint64_t pml4e_addr, pml4e;
1009 /* test virtual address sign extension */
1010 sext = (int64_t)addr >> 47;
1011 if (sext != 0 && sext != -1) {
1012 env->error_code = 0;
1013 env->exception_index = EXCP0D_GPF;
1017 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1019 pml4e = ldq_phys(pml4e_addr);
1020 if (!(pml4e & PG_PRESENT_MASK)) {
1024 if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
1025 error_code = PG_ERROR_RSVD_MASK;
1028 if (!(pml4e & PG_ACCESSED_MASK)) {
1029 pml4e |= PG_ACCESSED_MASK;
1030 stl_phys_notdirty(pml4e_addr, pml4e);
1032 ptep = pml4e ^ PG_NX_MASK;
1033 pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
1035 pdpe = ldq_phys(pdpe_addr);
1036 if (!(pdpe & PG_PRESENT_MASK)) {
1040 if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
1041 error_code = PG_ERROR_RSVD_MASK;
1044 ptep &= pdpe ^ PG_NX_MASK;
1045 if (!(pdpe & PG_ACCESSED_MASK)) {
1046 pdpe |= PG_ACCESSED_MASK;
1047 stl_phys_notdirty(pdpe_addr, pdpe);
1052 /* XXX: load them when cr3 is loaded ? */
1053 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1055 pdpe = ldq_phys(pdpe_addr);
1056 if (!(pdpe & PG_PRESENT_MASK)) {
1060 ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
1063 pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
1065 pde = ldq_phys(pde_addr);
1066 if (!(pde & PG_PRESENT_MASK)) {
1070 if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
1071 error_code = PG_ERROR_RSVD_MASK;
1074 ptep &= pde ^ PG_NX_MASK;
1075 if (pde & PG_PSE_MASK) {
1077 page_size = 2048 * 1024;
1079 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1080 goto do_fault_protect;
1082 if (!(ptep & PG_USER_MASK))
1083 goto do_fault_protect;
1084 if (is_write && !(ptep & PG_RW_MASK))
1085 goto do_fault_protect;
1087 if ((env->cr[0] & CR0_WP_MASK) &&
1088 is_write && !(ptep & PG_RW_MASK))
1089 goto do_fault_protect;
1091 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1092 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1093 pde |= PG_ACCESSED_MASK;
1095 pde |= PG_DIRTY_MASK;
1096 stl_phys_notdirty(pde_addr, pde);
1098 /* align to page_size */
1099 pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
1100 virt_addr = addr & ~(page_size - 1);
1103 if (!(pde & PG_ACCESSED_MASK)) {
1104 pde |= PG_ACCESSED_MASK;
1105 stl_phys_notdirty(pde_addr, pde);
1107 pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
1109 pte = ldq_phys(pte_addr);
1110 if (!(pte & PG_PRESENT_MASK)) {
1114 if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
1115 error_code = PG_ERROR_RSVD_MASK;
1118 /* combine pde and pte nx, user and rw protections */
1119 ptep &= pte ^ PG_NX_MASK;
1121 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1122 goto do_fault_protect;
1124 if (!(ptep & PG_USER_MASK))
1125 goto do_fault_protect;
1126 if (is_write && !(ptep & PG_RW_MASK))
1127 goto do_fault_protect;
1129 if ((env->cr[0] & CR0_WP_MASK) &&
1130 is_write && !(ptep & PG_RW_MASK))
1131 goto do_fault_protect;
1133 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1134 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1135 pte |= PG_ACCESSED_MASK;
1137 pte |= PG_DIRTY_MASK;
1138 stl_phys_notdirty(pte_addr, pte);
1141 virt_addr = addr & ~0xfff;
1142 pte = pte & (PHYS_ADDR_MASK | 0xfff);
1147 /* page directory entry */
1148 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
1150 pde = ldl_phys(pde_addr);
1151 if (!(pde & PG_PRESENT_MASK)) {
1155 /* if PSE bit is set, then we use a 4MB page */
1156 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1157 page_size = 4096 * 1024;
1159 if (!(pde & PG_USER_MASK))
1160 goto do_fault_protect;
1161 if (is_write && !(pde & PG_RW_MASK))
1162 goto do_fault_protect;
1164 if ((env->cr[0] & CR0_WP_MASK) &&
1165 is_write && !(pde & PG_RW_MASK))
1166 goto do_fault_protect;
1168 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1169 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1170 pde |= PG_ACCESSED_MASK;
1172 pde |= PG_DIRTY_MASK;
1173 stl_phys_notdirty(pde_addr, pde);
1176 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1178 virt_addr = addr & ~(page_size - 1);
1180 if (!(pde & PG_ACCESSED_MASK)) {
1181 pde |= PG_ACCESSED_MASK;
1182 stl_phys_notdirty(pde_addr, pde);
1185 /* page directory entry */
1186 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
1188 pte = ldl_phys(pte_addr);
1189 if (!(pte & PG_PRESENT_MASK)) {
1193 /* combine pde and pte user and rw protections */
1196 if (!(ptep & PG_USER_MASK))
1197 goto do_fault_protect;
1198 if (is_write && !(ptep & PG_RW_MASK))
1199 goto do_fault_protect;
1201 if ((env->cr[0] & CR0_WP_MASK) &&
1202 is_write && !(ptep & PG_RW_MASK))
1203 goto do_fault_protect;
1205 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1206 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1207 pte |= PG_ACCESSED_MASK;
1209 pte |= PG_DIRTY_MASK;
1210 stl_phys_notdirty(pte_addr, pte);
1213 virt_addr = addr & ~0xfff;
1216 /* the page can be put in the TLB */
1218 if (!(ptep & PG_NX_MASK))
1220 if (pte & PG_DIRTY_MASK) {
1221 /* only set write access if already dirty... otherwise wait
1224 if (ptep & PG_RW_MASK)
1227 if (!(env->cr[0] & CR0_WP_MASK) ||
1228 (ptep & PG_RW_MASK))
1233 pte = pte & env->a20_mask;
1235 /* Even if 4MB pages, we map only one 4KB page in the cache to
1236 avoid filling it too fast */
1237 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1238 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1239 vaddr = virt_addr + page_offset;
1241 ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
1244 error_code = PG_ERROR_P_MASK;
1246 error_code |= (is_write << PG_ERROR_W_BIT);
1248 error_code |= PG_ERROR_U_MASK;
1249 if (is_write1 == 2 &&
1250 (env->efer & MSR_EFER_NXE) &&
1251 (env->cr[4] & CR4_PAE_MASK))
1252 error_code |= PG_ERROR_I_D_MASK;
1253 if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
1254 /* cr2 is not modified in case of exceptions */
1255 stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
1260 env->error_code = error_code;
1261 env->exception_index = EXCP0E_PAGE;
1265 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
1267 target_ulong pde_addr, pte_addr;
1269 target_phys_addr_t paddr;
1270 uint32_t page_offset;
1273 if (env->cr[4] & CR4_PAE_MASK) {
1274 target_ulong pdpe_addr;
1277 #ifdef TARGET_X86_64
1278 if (env->hflags & HF_LMA_MASK) {
1279 uint64_t pml4e_addr, pml4e;
1282 /* test virtual address sign extension */
1283 sext = (int64_t)addr >> 47;
1284 if (sext != 0 && sext != -1)
1287 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1289 pml4e = ldq_phys(pml4e_addr);
1290 if (!(pml4e & PG_PRESENT_MASK))
1293 pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
1295 pdpe = ldq_phys(pdpe_addr);
1296 if (!(pdpe & PG_PRESENT_MASK))
1301 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1303 pdpe = ldq_phys(pdpe_addr);
1304 if (!(pdpe & PG_PRESENT_MASK))
1308 pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
1310 pde = ldq_phys(pde_addr);
1311 if (!(pde & PG_PRESENT_MASK)) {
1314 if (pde & PG_PSE_MASK) {
1316 page_size = 2048 * 1024;
1317 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1320 pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
1323 pte = ldq_phys(pte_addr);
1325 if (!(pte & PG_PRESENT_MASK))
1330 if (!(env->cr[0] & CR0_PG_MASK)) {
1334 /* page directory entry */
1335 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
1336 pde = ldl_phys(pde_addr);
1337 if (!(pde & PG_PRESENT_MASK))
1339 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1340 pte = pde & ~0x003ff000; /* align to 4MB */
1341 page_size = 4096 * 1024;
1343 /* page directory entry */
1344 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
1345 pte = ldl_phys(pte_addr);
1346 if (!(pte & PG_PRESENT_MASK))
1351 pte = pte & env->a20_mask;
1354 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1355 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1359 void hw_breakpoint_insert(CPUState *env, int index)
1363 switch (hw_breakpoint_type(env->dr[7], index)) {
1365 if (hw_breakpoint_enabled(env->dr[7], index))
1366 err = cpu_breakpoint_insert(env, env->dr[index], BP_CPU,
1367 &env->cpu_breakpoint[index]);
1370 type = BP_CPU | BP_MEM_WRITE;
1373 /* No support for I/O watchpoints yet */
1376 type = BP_CPU | BP_MEM_ACCESS;
1378 err = cpu_watchpoint_insert(env, env->dr[index],
1379 hw_breakpoint_len(env->dr[7], index),
1380 type, &env->cpu_watchpoint[index]);
1384 env->cpu_breakpoint[index] = NULL;
1387 void hw_breakpoint_remove(CPUState *env, int index)
1389 if (!env->cpu_breakpoint[index])
1391 switch (hw_breakpoint_type(env->dr[7], index)) {
1393 if (hw_breakpoint_enabled(env->dr[7], index))
1394 cpu_breakpoint_remove_by_ref(env, env->cpu_breakpoint[index]);
1398 cpu_watchpoint_remove_by_ref(env, env->cpu_watchpoint[index]);
1401 /* No support for I/O watchpoints yet */
1406 int check_hw_breakpoints(CPUState *env, int force_dr6_update)
1410 int hit_enabled = 0;
1412 dr6 = env->dr[6] & ~0xf;
1413 for (reg = 0; reg < 4; reg++) {
1414 type = hw_breakpoint_type(env->dr[7], reg);
1415 if ((type == 0 && env->dr[reg] == env->eip) ||
1416 ((type & 1) && env->cpu_watchpoint[reg] &&
1417 (env->cpu_watchpoint[reg]->flags & BP_WATCHPOINT_HIT))) {
1419 if (hw_breakpoint_enabled(env->dr[7], reg))
1423 if (hit_enabled || force_dr6_update)
1428 static CPUDebugExcpHandler *prev_debug_excp_handler;
1430 void raise_exception(int exception_index);
1432 static void breakpoint_handler(CPUState *env)
1436 if (env->watchpoint_hit) {
1437 if (env->watchpoint_hit->flags & BP_CPU) {
1438 env->watchpoint_hit = NULL;
1439 if (check_hw_breakpoints(env, 0))
1440 raise_exception(EXCP01_DB);
1442 cpu_resume_from_signal(env, NULL);
1445 TAILQ_FOREACH(bp, &env->breakpoints, entry)
1446 if (bp->pc == env->eip) {
1447 if (bp->flags & BP_CPU) {
1448 check_hw_breakpoints(env, 1);
1449 raise_exception(EXCP01_DB);
1454 if (prev_debug_excp_handler)
1455 prev_debug_excp_handler(env);
1457 #endif /* !CONFIG_USER_ONLY */
1459 static void host_cpuid(uint32_t function, uint32_t count,
1460 uint32_t *eax, uint32_t *ebx,
1461 uint32_t *ecx, uint32_t *edx)
1463 #if defined(CONFIG_KVM)
1467 asm volatile("cpuid"
1468 : "=a"(vec[0]), "=b"(vec[1]),
1469 "=c"(vec[2]), "=d"(vec[3])
1470 : "0"(function), "c"(count) : "cc");
1472 asm volatile("pusha \n\t"
1474 "mov %%eax, 0(%2) \n\t"
1475 "mov %%ebx, 4(%2) \n\t"
1476 "mov %%ecx, 8(%2) \n\t"
1477 "mov %%edx, 12(%2) \n\t"
1479 : : "a"(function), "c"(count), "S"(vec)
1494 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
1495 uint32_t *eax, uint32_t *ebx,
1496 uint32_t *ecx, uint32_t *edx)
1498 /* test if maximum index reached */
1499 if (index & 0x80000000) {
1500 if (index > env->cpuid_xlevel)
1501 index = env->cpuid_level;
1503 if (index > env->cpuid_level)
1504 index = env->cpuid_level;
1509 *eax = env->cpuid_level;
1510 *ebx = env->cpuid_vendor1;
1511 *edx = env->cpuid_vendor2;
1512 *ecx = env->cpuid_vendor3;
1514 /* sysenter isn't supported on compatibility mode on AMD. and syscall
1515 * isn't supported in compatibility mode on Intel. so advertise the
1516 * actuall cpu, and say goodbye to migration between different vendors
1517 * is you use compatibility mode. */
1518 if (kvm_enabled() && !env->cpuid_vendor_override)
1519 host_cpuid(0, 0, NULL, ebx, ecx, edx);
1522 *eax = env->cpuid_version;
1523 *ebx = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1524 *ecx = env->cpuid_ext_features;
1525 *edx = env->cpuid_features;
1527 /* "Hypervisor present" bit required for Microsoft SVVP */
1532 /* cache info: needed for Pentium Pro compatibility */
1539 /* cache info: needed for Core compatibility */
1541 case 0: /* L1 dcache info */
1547 case 1: /* L1 icache info */
1553 case 2: /* L2 cache info */
1559 default: /* end of info */
1568 /* mwait info: needed for Core compatibility */
1569 *eax = 0; /* Smallest monitor-line size in bytes */
1570 *ebx = 0; /* Largest monitor-line size in bytes */
1571 *ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
1575 /* Thermal and Power Leaf */
1582 /* Direct Cache Access Information Leaf */
1583 *eax = 0; /* Bits 0-31 in DCA_CAP MSR */
1589 /* Architectural Performance Monitoring Leaf */
1596 *eax = env->cpuid_xlevel;
1597 *ebx = env->cpuid_vendor1;
1598 *edx = env->cpuid_vendor2;
1599 *ecx = env->cpuid_vendor3;
1602 *eax = env->cpuid_features;
1604 *ecx = env->cpuid_ext3_features;
1605 *edx = env->cpuid_ext2_features;
1607 if (kvm_enabled()) {
1608 uint32_t h_eax, h_edx;
1610 host_cpuid(index, 0, &h_eax, NULL, NULL, &h_edx);
1612 /* disable CPU features that the host does not support */
1615 if ((h_edx & 0x20000000) == 0 /* || !lm_capable_kernel */)
1616 *edx &= ~0x20000000;
1618 if ((h_edx & 0x00000800) == 0)
1619 *edx &= ~0x00000800;
1621 if ((h_edx & 0x00100000) == 0)
1622 *edx &= ~0x00100000;
1624 /* disable CPU features that KVM cannot support */
1629 *edx &= ~0xc0000000;
1635 *eax = env->cpuid_model[(index - 0x80000002) * 4 + 0];
1636 *ebx = env->cpuid_model[(index - 0x80000002) * 4 + 1];
1637 *ecx = env->cpuid_model[(index - 0x80000002) * 4 + 2];
1638 *edx = env->cpuid_model[(index - 0x80000002) * 4 + 3];
1641 /* cache info (L1 cache) */
1648 /* cache info (L2 cache) */
1655 /* virtual & phys address size in low 2 bytes. */
1656 /* XXX: This value must match the one used in the MMU code. */
1657 if (env->cpuid_ext2_features & CPUID_EXT2_LM) {
1658 /* 64 bit processor */
1659 #if defined(CONFIG_KQEMU)
1660 *eax = 0x00003020; /* 48 bits virtual, 32 bits physical */
1662 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1663 *eax = 0x00003028; /* 48 bits virtual, 40 bits physical */
1666 #if defined(CONFIG_KQEMU)
1667 *eax = 0x00000020; /* 32 bits physical */
1669 if (env->cpuid_features & CPUID_PSE36)
1670 *eax = 0x00000024; /* 36 bits physical */
1672 *eax = 0x00000020; /* 32 bits physical */
1680 *eax = 0x00000001; /* SVM Revision */
1681 *ebx = 0x00000010; /* nr of ASIDs */
1683 *edx = 0; /* optional features */
1686 /* reserved values: zero */
1695 CPUX86State *cpu_x86_init(const char *cpu_model)
1700 env = qemu_mallocz(sizeof(CPUX86State));
1702 env->cpu_model_str = cpu_model;
1704 /* init various static tables */
1707 optimize_flags_init();
1708 #ifndef CONFIG_USER_ONLY
1709 prev_debug_excp_handler =
1710 cpu_set_debug_excp_handler(breakpoint_handler);
1713 if (cpu_x86_register(env, cpu_model) < 0) {
1722 qemu_init_vcpu(env);
1724 if (kvm_enabled()) {
1725 kvm_trim_features(&env->cpuid_features,
1726 kvm_arch_get_supported_cpuid(env, 1, R_EDX),
1728 kvm_trim_features(&env->cpuid_ext_features,
1729 kvm_arch_get_supported_cpuid(env, 1, R_ECX),
1731 kvm_trim_features(&env->cpuid_ext2_features,
1732 kvm_arch_get_supported_cpuid(env, 0x80000001, R_EDX),
1734 kvm_trim_features(&env->cpuid_ext3_features,
1735 kvm_arch_get_supported_cpuid(env, 0x80000001, R_ECX),
1742 #if !defined(CONFIG_USER_ONLY)
1743 void do_cpu_init(CPUState *env)
1745 int sipi = env->interrupt_request & CPU_INTERRUPT_SIPI;
1747 env->interrupt_request = sipi;
1748 apic_init_reset(env);
1751 void do_cpu_sipi(CPUState *env)
1756 void do_cpu_init(CPUState *env)
1759 void do_cpu_sipi(CPUState *env)