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
| CPUID_EXT_CX16
| CPUID_EXT_POPCNT
,
135 .ext2_features
= (PPRO_FEATURES
& 0x0183F3FF) |
136 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
137 .ext3_features
= CPUID_EXT3_LAHF_LM
| CPUID_EXT3_SVM
|
138 CPUID_EXT3_ABM
| CPUID_EXT3_SSE4A
,
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 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_CX16
|
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_CMP_LEG, CPUID_EXT3_EXTAPIC,
164 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
165 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
166 .ext3_features
= CPUID_EXT3_LAHF_LM
| CPUID_EXT3_SVM
|
167 CPUID_EXT3_ABM
| CPUID_EXT3_SSE4A
,
168 .xlevel
= 0x8000001A,
169 .model_id
= "AMD Phenom(tm) 9550 Quad-Core Processor"
177 /* The original CPU also implements these features:
178 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
179 CPUID_TM, CPUID_PBE */
180 .features
= PPRO_FEATURES
|
181 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
183 /* The original CPU also implements these ext features:
184 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
185 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
186 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_SSSE3
,
187 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
188 .ext3_features
= CPUID_EXT3_LAHF_LM
,
189 .xlevel
= 0x80000008,
190 .model_id
= "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
195 .vendor1
= CPUID_VENDOR_INTEL_1
,
196 .vendor2
= CPUID_VENDOR_INTEL_2
,
197 .vendor3
= CPUID_VENDOR_INTEL_3
,
201 /* Missing: CPUID_VME, CPUID_HT */
202 .features
= PPRO_FEATURES
|
203 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
205 /* Missing: CPUID_EXT_POPCNT, CPUID_EXT_MONITOR */
206 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_CX16
,
207 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
208 .ext2_features
= (PPRO_FEATURES
& 0x0183F3FF) |
209 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
210 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
211 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
212 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
213 CPUID_EXT3_OSVW, CPUID_EXT3_IBS, CPUID_EXT3_SVM */
215 .xlevel
= 0x80000008,
216 .model_id
= "Common KVM processor"
225 .features
= PPRO_FEATURES
,
226 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_POPCNT
,
228 .model_id
= "QEMU Virtual CPU version " QEMU_VERSION
,
236 /* The original CPU also implements these features:
237 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
238 CPUID_TM, CPUID_PBE */
239 .features
= PPRO_FEATURES
| CPUID_VME
|
240 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
,
241 /* The original CPU also implements these ext features:
242 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
244 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
,
245 .ext2_features
= CPUID_EXT2_NX
,
246 .xlevel
= 0x80000008,
247 .model_id
= "Genuine Intel(R) CPU T2600 @ 2.16GHz",
255 .features
= I486_FEATURES
,
264 .features
= PENTIUM_FEATURES
,
273 .features
= PENTIUM2_FEATURES
,
282 .features
= PENTIUM3_FEATURES
,
288 .vendor1
= CPUID_VENDOR_AMD_1
,
289 .vendor2
= CPUID_VENDOR_AMD_2
,
290 .vendor3
= CPUID_VENDOR_AMD_3
,
294 .features
= PPRO_FEATURES
| CPUID_PSE36
| CPUID_VME
| CPUID_MTRR
| CPUID_MCA
,
295 .ext2_features
= (PPRO_FEATURES
& 0x0183F3FF) | CPUID_EXT2_MMXEXT
| CPUID_EXT2_3DNOW
| CPUID_EXT2_3DNOWEXT
,
296 .xlevel
= 0x80000008,
297 /* XXX: put another string ? */
298 .model_id
= "QEMU Virtual CPU version " QEMU_VERSION
,
302 /* original is on level 10 */
307 .features
= PPRO_FEATURES
|
308 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
| CPUID_VME
,
309 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
310 * CPUID_HT | CPUID_TM | CPUID_PBE */
311 /* Some CPUs got no CPUID_SEP */
312 .ext_features
= CPUID_EXT_MONITOR
|
313 CPUID_EXT_SSE3
/* PNI */ | CPUID_EXT_SSSE3
,
314 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
315 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
316 .ext2_features
= (PPRO_FEATURES
& 0x0183F3FF) | CPUID_EXT2_NX
,
317 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
318 .xlevel
= 0x8000000A,
319 .model_id
= "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
323 static void host_cpuid(uint32_t function
, uint32_t count
, uint32_t *eax
,
324 uint32_t *ebx
, uint32_t *ecx
, uint32_t *edx
);
326 static int cpu_x86_fill_model_id(char *str
)
328 uint32_t eax
= 0, ebx
= 0, ecx
= 0, edx
= 0;
331 for (i
= 0; i
< 3; i
++) {
332 host_cpuid(0x80000002 + i
, 0, &eax
, &ebx
, &ecx
, &edx
);
333 memcpy(str
+ i
* 16 + 0, &eax
, 4);
334 memcpy(str
+ i
* 16 + 4, &ebx
, 4);
335 memcpy(str
+ i
* 16 + 8, &ecx
, 4);
336 memcpy(str
+ i
* 16 + 12, &edx
, 4);
341 static int cpu_x86_fill_host(x86_def_t
*x86_cpu_def
)
343 uint32_t eax
= 0, ebx
= 0, ecx
= 0, edx
= 0;
345 x86_cpu_def
->name
= "host";
346 host_cpuid(0x0, 0, &eax
, &ebx
, &ecx
, &edx
);
347 x86_cpu_def
->level
= eax
;
348 x86_cpu_def
->vendor1
= ebx
;
349 x86_cpu_def
->vendor2
= edx
;
350 x86_cpu_def
->vendor3
= ecx
;
352 host_cpuid(0x1, 0, &eax
, &ebx
, &ecx
, &edx
);
353 x86_cpu_def
->family
= ((eax
>> 8) & 0x0F) + ((eax
>> 20) & 0xFF);
354 x86_cpu_def
->model
= ((eax
>> 4) & 0x0F) | ((eax
& 0xF0000) >> 12);
355 x86_cpu_def
->stepping
= eax
& 0x0F;
356 x86_cpu_def
->ext_features
= ecx
;
357 x86_cpu_def
->features
= edx
;
359 host_cpuid(0x80000000, 0, &eax
, &ebx
, &ecx
, &edx
);
360 x86_cpu_def
->xlevel
= eax
;
362 host_cpuid(0x80000001, 0, &eax
, &ebx
, &ecx
, &edx
);
363 x86_cpu_def
->ext2_features
= edx
;
364 x86_cpu_def
->ext3_features
= ecx
;
365 cpu_x86_fill_model_id(x86_cpu_def
->model_id
);
366 x86_cpu_def
->vendor_override
= 0;
371 static int cpu_x86_find_by_name(x86_def_t
*x86_cpu_def
, const char *cpu_model
)
376 char *s
= strdup(cpu_model
);
377 char *featurestr
, *name
= strtok(s
, ",");
378 uint32_t plus_features
= 0, plus_ext_features
= 0, plus_ext2_features
= 0, plus_ext3_features
= 0;
379 uint32_t minus_features
= 0, minus_ext_features
= 0, minus_ext2_features
= 0, minus_ext3_features
= 0;
383 for (i
= 0; i
< ARRAY_SIZE(x86_defs
); i
++) {
384 if (strcmp(name
, x86_defs
[i
].name
) == 0) {
389 if (kvm_enabled() && strcmp(name
, "host") == 0) {
390 cpu_x86_fill_host(x86_cpu_def
);
394 memcpy(x86_cpu_def
, def
, sizeof(*def
));
397 add_flagname_to_bitmaps("hypervisor", &plus_features
,
398 &plus_ext_features
, &plus_ext2_features
, &plus_ext3_features
);
400 featurestr
= strtok(NULL
, ",");
404 if (featurestr
[0] == '+') {
405 add_flagname_to_bitmaps(featurestr
+ 1, &plus_features
, &plus_ext_features
, &plus_ext2_features
, &plus_ext3_features
);
406 } else if (featurestr
[0] == '-') {
407 add_flagname_to_bitmaps(featurestr
+ 1, &minus_features
, &minus_ext_features
, &minus_ext2_features
, &minus_ext3_features
);
408 } else if ((val
= strchr(featurestr
, '='))) {
410 if (!strcmp(featurestr
, "family")) {
412 numvalue
= strtoul(val
, &err
, 0);
414 fprintf(stderr
, "bad numerical value %s\n", val
);
417 x86_cpu_def
->family
= numvalue
;
418 } else if (!strcmp(featurestr
, "model")) {
420 numvalue
= strtoul(val
, &err
, 0);
421 if (!*val
|| *err
|| numvalue
> 0xff) {
422 fprintf(stderr
, "bad numerical value %s\n", val
);
425 x86_cpu_def
->model
= numvalue
;
426 } else if (!strcmp(featurestr
, "stepping")) {
428 numvalue
= strtoul(val
, &err
, 0);
429 if (!*val
|| *err
|| numvalue
> 0xf) {
430 fprintf(stderr
, "bad numerical value %s\n", val
);
433 x86_cpu_def
->stepping
= numvalue
;
434 } else if (!strcmp(featurestr
, "level")) {
436 numvalue
= strtoul(val
, &err
, 0);
438 fprintf(stderr
, "bad numerical value %s\n", val
);
441 x86_cpu_def
->level
= numvalue
;
442 } else if (!strcmp(featurestr
, "xlevel")) {
444 numvalue
= strtoul(val
, &err
, 0);
446 fprintf(stderr
, "bad numerical value %s\n", val
);
449 if (numvalue
< 0x80000000) {
450 numvalue
+= 0x80000000;
452 x86_cpu_def
->xlevel
= numvalue
;
453 } else if (!strcmp(featurestr
, "vendor")) {
454 if (strlen(val
) != 12) {
455 fprintf(stderr
, "vendor string must be 12 chars long\n");
458 x86_cpu_def
->vendor1
= 0;
459 x86_cpu_def
->vendor2
= 0;
460 x86_cpu_def
->vendor3
= 0;
461 for(i
= 0; i
< 4; i
++) {
462 x86_cpu_def
->vendor1
|= ((uint8_t)val
[i
]) << (8 * i
);
463 x86_cpu_def
->vendor2
|= ((uint8_t)val
[i
+ 4]) << (8 * i
);
464 x86_cpu_def
->vendor3
|= ((uint8_t)val
[i
+ 8]) << (8 * i
);
466 x86_cpu_def
->vendor_override
= 1;
467 } else if (!strcmp(featurestr
, "model_id")) {
468 pstrcpy(x86_cpu_def
->model_id
, sizeof(x86_cpu_def
->model_id
),
471 fprintf(stderr
, "unrecognized feature %s\n", featurestr
);
475 fprintf(stderr
, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr
);
478 featurestr
= strtok(NULL
, ",");
480 x86_cpu_def
->features
|= plus_features
;
481 x86_cpu_def
->ext_features
|= plus_ext_features
;
482 x86_cpu_def
->ext2_features
|= plus_ext2_features
;
483 x86_cpu_def
->ext3_features
|= plus_ext3_features
;
484 x86_cpu_def
->features
&= ~minus_features
;
485 x86_cpu_def
->ext_features
&= ~minus_ext_features
;
486 x86_cpu_def
->ext2_features
&= ~minus_ext2_features
;
487 x86_cpu_def
->ext3_features
&= ~minus_ext3_features
;
496 void x86_cpu_list (FILE *f
, int (*cpu_fprintf
)(FILE *f
, const char *fmt
, ...))
500 for (i
= 0; i
< ARRAY_SIZE(x86_defs
); i
++)
501 (*cpu_fprintf
)(f
, "x86 %16s\n", x86_defs
[i
].name
);
504 static int cpu_x86_register (CPUX86State
*env
, const char *cpu_model
)
506 x86_def_t def1
, *def
= &def1
;
508 if (cpu_x86_find_by_name(def
, cpu_model
) < 0)
511 env
->cpuid_vendor1
= def
->vendor1
;
512 env
->cpuid_vendor2
= def
->vendor2
;
513 env
->cpuid_vendor3
= def
->vendor3
;
515 env
->cpuid_vendor1
= CPUID_VENDOR_INTEL_1
;
516 env
->cpuid_vendor2
= CPUID_VENDOR_INTEL_2
;
517 env
->cpuid_vendor3
= CPUID_VENDOR_INTEL_3
;
519 env
->cpuid_vendor_override
= def
->vendor_override
;
520 env
->cpuid_level
= def
->level
;
521 if (def
->family
> 0x0f)
522 env
->cpuid_version
= 0xf00 | ((def
->family
- 0x0f) << 20);
524 env
->cpuid_version
= def
->family
<< 8;
525 env
->cpuid_version
|= ((def
->model
& 0xf) << 4) | ((def
->model
>> 4) << 16);
526 env
->cpuid_version
|= def
->stepping
;
527 env
->cpuid_features
= def
->features
;
528 env
->pat
= 0x0007040600070406ULL
;
529 env
->cpuid_ext_features
= def
->ext_features
;
530 env
->cpuid_ext2_features
= def
->ext2_features
;
531 env
->cpuid_xlevel
= def
->xlevel
;
532 env
->cpuid_ext3_features
= def
->ext3_features
;
534 const char *model_id
= def
->model_id
;
538 len
= strlen(model_id
);
539 for(i
= 0; i
< 48; i
++) {
543 c
= (uint8_t)model_id
[i
];
544 env
->cpuid_model
[i
>> 2] |= c
<< (8 * (i
& 3));
550 /* NOTE: must be called outside the CPU execute loop */
551 void cpu_reset(CPUX86State
*env
)
555 if (qemu_loglevel_mask(CPU_LOG_RESET
)) {
556 qemu_log("CPU Reset (CPU %d)\n", env
->cpu_index
);
557 log_cpu_state(env
, X86_DUMP_FPU
| X86_DUMP_CCOP
);
560 memset(env
, 0, offsetof(CPUX86State
, breakpoints
));
564 env
->old_exception
= -1;
566 /* init to reset state */
568 #ifdef CONFIG_SOFTMMU
569 env
->hflags
|= HF_SOFTMMU_MASK
;
571 env
->hflags2
|= HF2_GIF_MASK
;
573 cpu_x86_update_cr0(env
, 0x60000010);
574 env
->a20_mask
= ~0x0;
575 env
->smbase
= 0x30000;
577 env
->idt
.limit
= 0xffff;
578 env
->gdt
.limit
= 0xffff;
579 env
->ldt
.limit
= 0xffff;
580 env
->ldt
.flags
= DESC_P_MASK
| (2 << DESC_TYPE_SHIFT
);
581 env
->tr
.limit
= 0xffff;
582 env
->tr
.flags
= DESC_P_MASK
| (11 << DESC_TYPE_SHIFT
);
584 cpu_x86_load_seg_cache(env
, R_CS
, 0xf000, 0xffff0000, 0xffff,
585 DESC_P_MASK
| DESC_S_MASK
| DESC_CS_MASK
|
586 DESC_R_MASK
| DESC_A_MASK
);
587 cpu_x86_load_seg_cache(env
, R_DS
, 0, 0, 0xffff,
588 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
590 cpu_x86_load_seg_cache(env
, R_ES
, 0, 0, 0xffff,
591 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
593 cpu_x86_load_seg_cache(env
, R_SS
, 0, 0, 0xffff,
594 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
596 cpu_x86_load_seg_cache(env
, R_FS
, 0, 0, 0xffff,
597 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
599 cpu_x86_load_seg_cache(env
, R_GS
, 0, 0, 0xffff,
600 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
604 env
->regs
[R_EDX
] = env
->cpuid_version
;
609 for(i
= 0;i
< 8; i
++)
615 memset(env
->dr
, 0, sizeof(env
->dr
));
616 env
->dr
[6] = DR6_FIXED_1
;
617 env
->dr
[7] = DR7_FIXED_1
;
618 cpu_breakpoint_remove_all(env
, BP_CPU
);
619 cpu_watchpoint_remove_all(env
, BP_CPU
);
622 void cpu_x86_close(CPUX86State
*env
)
627 /***********************************************************/
630 static const char *cc_op_str
[] = {
686 cpu_x86_dump_seg_cache(CPUState
*env
, FILE *f
,
687 int (*cpu_fprintf
)(FILE *f
, const char *fmt
, ...),
688 const char *name
, struct SegmentCache
*sc
)
691 if (env
->hflags
& HF_CS64_MASK
) {
692 cpu_fprintf(f
, "%-3s=%04x %016" PRIx64
" %08x %08x", name
,
693 sc
->selector
, sc
->base
, sc
->limit
, sc
->flags
);
697 cpu_fprintf(f
, "%-3s=%04x %08x %08x %08x", name
, sc
->selector
,
698 (uint32_t)sc
->base
, sc
->limit
, sc
->flags
);
701 if (!(env
->hflags
& HF_PE_MASK
) || !(sc
->flags
& DESC_P_MASK
))
704 cpu_fprintf(f
, " DPL=%d ", (sc
->flags
& DESC_DPL_MASK
) >> DESC_DPL_SHIFT
);
705 if (sc
->flags
& DESC_S_MASK
) {
706 if (sc
->flags
& DESC_CS_MASK
) {
707 cpu_fprintf(f
, (sc
->flags
& DESC_L_MASK
) ? "CS64" :
708 ((sc
->flags
& DESC_B_MASK
) ? "CS32" : "CS16"));
709 cpu_fprintf(f
, " [%c%c", (sc
->flags
& DESC_C_MASK
) ? 'C' : '-',
710 (sc
->flags
& DESC_R_MASK
) ? 'R' : '-');
712 cpu_fprintf(f
, (sc
->flags
& DESC_B_MASK
) ? "DS " : "DS16");
713 cpu_fprintf(f
, " [%c%c", (sc
->flags
& DESC_E_MASK
) ? 'E' : '-',
714 (sc
->flags
& DESC_W_MASK
) ? 'W' : '-');
716 cpu_fprintf(f
, "%c]", (sc
->flags
& DESC_A_MASK
) ? 'A' : '-');
718 static const char *sys_type_name
[2][16] = {
720 "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
721 "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
722 "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
723 "CallGate32", "Reserved", "IntGate32", "TrapGate32"
726 "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
727 "Reserved", "Reserved", "Reserved", "Reserved",
728 "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
729 "Reserved", "IntGate64", "TrapGate64"
732 cpu_fprintf(f
, sys_type_name
[(env
->hflags
& HF_LMA_MASK
) ? 1 : 0]
733 [(sc
->flags
& DESC_TYPE_MASK
)
734 >> DESC_TYPE_SHIFT
]);
737 cpu_fprintf(f
, "\n");
740 void cpu_dump_state(CPUState
*env
, FILE *f
,
741 int (*cpu_fprintf
)(FILE *f
, const char *fmt
, ...),
746 static const char *seg_name
[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
748 cpu_synchronize_state(env
);
750 eflags
= env
->eflags
;
752 if (env
->hflags
& HF_CS64_MASK
) {
754 "RAX=%016" PRIx64
" RBX=%016" PRIx64
" RCX=%016" PRIx64
" RDX=%016" PRIx64
"\n"
755 "RSI=%016" PRIx64
" RDI=%016" PRIx64
" RBP=%016" PRIx64
" RSP=%016" PRIx64
"\n"
756 "R8 =%016" PRIx64
" R9 =%016" PRIx64
" R10=%016" PRIx64
" R11=%016" PRIx64
"\n"
757 "R12=%016" PRIx64
" R13=%016" PRIx64
" R14=%016" PRIx64
" R15=%016" PRIx64
"\n"
758 "RIP=%016" PRIx64
" RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
776 eflags
& DF_MASK
? 'D' : '-',
777 eflags
& CC_O
? 'O' : '-',
778 eflags
& CC_S
? 'S' : '-',
779 eflags
& CC_Z
? 'Z' : '-',
780 eflags
& CC_A
? 'A' : '-',
781 eflags
& CC_P
? 'P' : '-',
782 eflags
& CC_C
? 'C' : '-',
783 env
->hflags
& HF_CPL_MASK
,
784 (env
->hflags
>> HF_INHIBIT_IRQ_SHIFT
) & 1,
785 (env
->a20_mask
>> 20) & 1,
786 (env
->hflags
>> HF_SMM_SHIFT
) & 1,
791 cpu_fprintf(f
, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
792 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
793 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
794 (uint32_t)env
->regs
[R_EAX
],
795 (uint32_t)env
->regs
[R_EBX
],
796 (uint32_t)env
->regs
[R_ECX
],
797 (uint32_t)env
->regs
[R_EDX
],
798 (uint32_t)env
->regs
[R_ESI
],
799 (uint32_t)env
->regs
[R_EDI
],
800 (uint32_t)env
->regs
[R_EBP
],
801 (uint32_t)env
->regs
[R_ESP
],
802 (uint32_t)env
->eip
, eflags
,
803 eflags
& DF_MASK
? 'D' : '-',
804 eflags
& CC_O
? 'O' : '-',
805 eflags
& CC_S
? 'S' : '-',
806 eflags
& CC_Z
? 'Z' : '-',
807 eflags
& CC_A
? 'A' : '-',
808 eflags
& CC_P
? 'P' : '-',
809 eflags
& CC_C
? 'C' : '-',
810 env
->hflags
& HF_CPL_MASK
,
811 (env
->hflags
>> HF_INHIBIT_IRQ_SHIFT
) & 1,
812 (env
->a20_mask
>> 20) & 1,
813 (env
->hflags
>> HF_SMM_SHIFT
) & 1,
817 for(i
= 0; i
< 6; i
++) {
818 cpu_x86_dump_seg_cache(env
, f
, cpu_fprintf
, seg_name
[i
],
821 cpu_x86_dump_seg_cache(env
, f
, cpu_fprintf
, "LDT", &env
->ldt
);
822 cpu_x86_dump_seg_cache(env
, f
, cpu_fprintf
, "TR", &env
->tr
);
825 if (env
->hflags
& HF_LMA_MASK
) {
826 cpu_fprintf(f
, "GDT= %016" PRIx64
" %08x\n",
827 env
->gdt
.base
, env
->gdt
.limit
);
828 cpu_fprintf(f
, "IDT= %016" PRIx64
" %08x\n",
829 env
->idt
.base
, env
->idt
.limit
);
830 cpu_fprintf(f
, "CR0=%08x CR2=%016" PRIx64
" CR3=%016" PRIx64
" CR4=%08x\n",
831 (uint32_t)env
->cr
[0],
834 (uint32_t)env
->cr
[4]);
835 for(i
= 0; i
< 4; i
++)
836 cpu_fprintf(f
, "DR%d=%016" PRIx64
" ", i
, env
->dr
[i
]);
837 cpu_fprintf(f
, "\nDR6=%016" PRIx64
" DR7=%016" PRIx64
"\n",
838 env
->dr
[6], env
->dr
[7]);
842 cpu_fprintf(f
, "GDT= %08x %08x\n",
843 (uint32_t)env
->gdt
.base
, env
->gdt
.limit
);
844 cpu_fprintf(f
, "IDT= %08x %08x\n",
845 (uint32_t)env
->idt
.base
, env
->idt
.limit
);
846 cpu_fprintf(f
, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
847 (uint32_t)env
->cr
[0],
848 (uint32_t)env
->cr
[2],
849 (uint32_t)env
->cr
[3],
850 (uint32_t)env
->cr
[4]);
851 for(i
= 0; i
< 4; i
++)
852 cpu_fprintf(f
, "DR%d=%08x ", i
, env
->dr
[i
]);
853 cpu_fprintf(f
, "\nDR6=%08x DR7=%08x\n", env
->dr
[6], env
->dr
[7]);
855 if (flags
& X86_DUMP_CCOP
) {
856 if ((unsigned)env
->cc_op
< CC_OP_NB
)
857 snprintf(cc_op_name
, sizeof(cc_op_name
), "%s", cc_op_str
[env
->cc_op
]);
859 snprintf(cc_op_name
, sizeof(cc_op_name
), "[%d]", env
->cc_op
);
861 if (env
->hflags
& HF_CS64_MASK
) {
862 cpu_fprintf(f
, "CCS=%016" PRIx64
" CCD=%016" PRIx64
" CCO=%-8s\n",
863 env
->cc_src
, env
->cc_dst
,
868 cpu_fprintf(f
, "CCS=%08x CCD=%08x CCO=%-8s\n",
869 (uint32_t)env
->cc_src
, (uint32_t)env
->cc_dst
,
873 if (flags
& X86_DUMP_FPU
) {
876 for(i
= 0; i
< 8; i
++) {
877 fptag
|= ((!env
->fptags
[i
]) << i
);
879 cpu_fprintf(f
, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
881 (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11,
886 #if defined(USE_X86LDOUBLE)
894 tmp
.d
= env
->fpregs
[i
].d
;
895 cpu_fprintf(f
, "FPR%d=%016" PRIx64
" %04x",
896 i
, tmp
.l
.lower
, tmp
.l
.upper
);
898 cpu_fprintf(f
, "FPR%d=%016" PRIx64
,
899 i
, env
->fpregs
[i
].mmx
.q
);
902 cpu_fprintf(f
, "\n");
906 if (env
->hflags
& HF_CS64_MASK
)
911 cpu_fprintf(f
, "XMM%02d=%08x%08x%08x%08x",
913 env
->xmm_regs
[i
].XMM_L(3),
914 env
->xmm_regs
[i
].XMM_L(2),
915 env
->xmm_regs
[i
].XMM_L(1),
916 env
->xmm_regs
[i
].XMM_L(0));
918 cpu_fprintf(f
, "\n");
925 /***********************************************************/
927 /* XXX: add PGE support */
929 void cpu_x86_set_a20(CPUX86State
*env
, int a20_state
)
931 a20_state
= (a20_state
!= 0);
932 if (a20_state
!= ((env
->a20_mask
>> 20) & 1)) {
933 #if defined(DEBUG_MMU)
934 printf("A20 update: a20=%d\n", a20_state
);
936 /* if the cpu is currently executing code, we must unlink it and
937 all the potentially executing TB */
938 cpu_interrupt(env
, CPU_INTERRUPT_EXITTB
);
940 /* when a20 is changed, all the MMU mappings are invalid, so
941 we must flush everything */
943 env
->a20_mask
= ~(1 << 20) | (a20_state
<< 20);
947 void cpu_x86_update_cr0(CPUX86State
*env
, uint32_t new_cr0
)
951 #if defined(DEBUG_MMU)
952 printf("CR0 update: CR0=0x%08x\n", new_cr0
);
954 if ((new_cr0
& (CR0_PG_MASK
| CR0_WP_MASK
| CR0_PE_MASK
)) !=
955 (env
->cr
[0] & (CR0_PG_MASK
| CR0_WP_MASK
| CR0_PE_MASK
))) {
960 if (!(env
->cr
[0] & CR0_PG_MASK
) && (new_cr0
& CR0_PG_MASK
) &&
961 (env
->efer
& MSR_EFER_LME
)) {
962 /* enter in long mode */
963 /* XXX: generate an exception */
964 if (!(env
->cr
[4] & CR4_PAE_MASK
))
966 env
->efer
|= MSR_EFER_LMA
;
967 env
->hflags
|= HF_LMA_MASK
;
968 } else if ((env
->cr
[0] & CR0_PG_MASK
) && !(new_cr0
& CR0_PG_MASK
) &&
969 (env
->efer
& MSR_EFER_LMA
)) {
971 env
->efer
&= ~MSR_EFER_LMA
;
972 env
->hflags
&= ~(HF_LMA_MASK
| HF_CS64_MASK
);
973 env
->eip
&= 0xffffffff;
976 env
->cr
[0] = new_cr0
| CR0_ET_MASK
;
978 /* update PE flag in hidden flags */
979 pe_state
= (env
->cr
[0] & CR0_PE_MASK
);
980 env
->hflags
= (env
->hflags
& ~HF_PE_MASK
) | (pe_state
<< HF_PE_SHIFT
);
981 /* ensure that ADDSEG is always set in real mode */
982 env
->hflags
|= ((pe_state
^ 1) << HF_ADDSEG_SHIFT
);
983 /* update FPU flags */
984 env
->hflags
= (env
->hflags
& ~(HF_MP_MASK
| HF_EM_MASK
| HF_TS_MASK
)) |
985 ((new_cr0
<< (HF_MP_SHIFT
- 1)) & (HF_MP_MASK
| HF_EM_MASK
| HF_TS_MASK
));
988 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
990 void cpu_x86_update_cr3(CPUX86State
*env
, target_ulong new_cr3
)
992 env
->cr
[3] = new_cr3
;
993 if (env
->cr
[0] & CR0_PG_MASK
) {
994 #if defined(DEBUG_MMU)
995 printf("CR3 update: CR3=" TARGET_FMT_lx
"\n", new_cr3
);
1001 void cpu_x86_update_cr4(CPUX86State
*env
, uint32_t new_cr4
)
1003 #if defined(DEBUG_MMU)
1004 printf("CR4 update: CR4=%08x\n", (uint32_t)env
->cr
[4]);
1006 if ((new_cr4
& (CR4_PGE_MASK
| CR4_PAE_MASK
| CR4_PSE_MASK
)) !=
1007 (env
->cr
[4] & (CR4_PGE_MASK
| CR4_PAE_MASK
| CR4_PSE_MASK
))) {
1011 if (!(env
->cpuid_features
& CPUID_SSE
))
1012 new_cr4
&= ~CR4_OSFXSR_MASK
;
1013 if (new_cr4
& CR4_OSFXSR_MASK
)
1014 env
->hflags
|= HF_OSFXSR_MASK
;
1016 env
->hflags
&= ~HF_OSFXSR_MASK
;
1018 env
->cr
[4] = new_cr4
;
1021 #if defined(CONFIG_USER_ONLY)
1023 int cpu_x86_handle_mmu_fault(CPUX86State
*env
, target_ulong addr
,
1024 int is_write
, int mmu_idx
, int is_softmmu
)
1026 /* user mode only emulation */
1029 env
->error_code
= (is_write
<< PG_ERROR_W_BIT
);
1030 env
->error_code
|= PG_ERROR_U_MASK
;
1031 env
->exception_index
= EXCP0E_PAGE
;
1035 target_phys_addr_t
cpu_get_phys_page_debug(CPUState
*env
, target_ulong addr
)
1042 /* XXX: This value should match the one returned by CPUID
1044 # if defined(TARGET_X86_64)
1045 # define PHYS_ADDR_MASK 0xfffffff000LL
1047 # define PHYS_ADDR_MASK 0xffffff000LL
1051 -1 = cannot handle fault
1052 0 = nothing more to do
1053 1 = generate PF fault
1054 2 = soft MMU activation required for this block
1056 int cpu_x86_handle_mmu_fault(CPUX86State
*env
, target_ulong addr
,
1057 int is_write1
, int mmu_idx
, int is_softmmu
)
1060 target_ulong pde_addr
, pte_addr
;
1061 int error_code
, is_dirty
, prot
, page_size
, ret
, is_write
, is_user
;
1062 target_phys_addr_t paddr
;
1063 uint32_t page_offset
;
1064 target_ulong vaddr
, virt_addr
;
1066 is_user
= mmu_idx
== MMU_USER_IDX
;
1067 #if defined(DEBUG_MMU)
1068 printf("MMU fault: addr=" TARGET_FMT_lx
" w=%d u=%d eip=" TARGET_FMT_lx
"\n",
1069 addr
, is_write1
, is_user
, env
->eip
);
1071 is_write
= is_write1
& 1;
1073 if (!(env
->cr
[0] & CR0_PG_MASK
)) {
1075 virt_addr
= addr
& TARGET_PAGE_MASK
;
1076 prot
= PAGE_READ
| PAGE_WRITE
| PAGE_EXEC
;
1081 if (env
->cr
[4] & CR4_PAE_MASK
) {
1083 target_ulong pdpe_addr
;
1085 #ifdef TARGET_X86_64
1086 if (env
->hflags
& HF_LMA_MASK
) {
1087 uint64_t pml4e_addr
, pml4e
;
1090 /* test virtual address sign extension */
1091 sext
= (int64_t)addr
>> 47;
1092 if (sext
!= 0 && sext
!= -1) {
1093 env
->error_code
= 0;
1094 env
->exception_index
= EXCP0D_GPF
;
1098 pml4e_addr
= ((env
->cr
[3] & ~0xfff) + (((addr
>> 39) & 0x1ff) << 3)) &
1100 pml4e
= ldq_phys(pml4e_addr
);
1101 if (!(pml4e
& PG_PRESENT_MASK
)) {
1105 if (!(env
->efer
& MSR_EFER_NXE
) && (pml4e
& PG_NX_MASK
)) {
1106 error_code
= PG_ERROR_RSVD_MASK
;
1109 if (!(pml4e
& PG_ACCESSED_MASK
)) {
1110 pml4e
|= PG_ACCESSED_MASK
;
1111 stl_phys_notdirty(pml4e_addr
, pml4e
);
1113 ptep
= pml4e
^ PG_NX_MASK
;
1114 pdpe_addr
= ((pml4e
& PHYS_ADDR_MASK
) + (((addr
>> 30) & 0x1ff) << 3)) &
1116 pdpe
= ldq_phys(pdpe_addr
);
1117 if (!(pdpe
& PG_PRESENT_MASK
)) {
1121 if (!(env
->efer
& MSR_EFER_NXE
) && (pdpe
& PG_NX_MASK
)) {
1122 error_code
= PG_ERROR_RSVD_MASK
;
1125 ptep
&= pdpe
^ PG_NX_MASK
;
1126 if (!(pdpe
& PG_ACCESSED_MASK
)) {
1127 pdpe
|= PG_ACCESSED_MASK
;
1128 stl_phys_notdirty(pdpe_addr
, pdpe
);
1133 /* XXX: load them when cr3 is loaded ? */
1134 pdpe_addr
= ((env
->cr
[3] & ~0x1f) + ((addr
>> 27) & 0x18)) &
1136 pdpe
= ldq_phys(pdpe_addr
);
1137 if (!(pdpe
& PG_PRESENT_MASK
)) {
1141 ptep
= PG_NX_MASK
| PG_USER_MASK
| PG_RW_MASK
;
1144 pde_addr
= ((pdpe
& PHYS_ADDR_MASK
) + (((addr
>> 21) & 0x1ff) << 3)) &
1146 pde
= ldq_phys(pde_addr
);
1147 if (!(pde
& PG_PRESENT_MASK
)) {
1151 if (!(env
->efer
& MSR_EFER_NXE
) && (pde
& PG_NX_MASK
)) {
1152 error_code
= PG_ERROR_RSVD_MASK
;
1155 ptep
&= pde
^ PG_NX_MASK
;
1156 if (pde
& PG_PSE_MASK
) {
1158 page_size
= 2048 * 1024;
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
&& !(pde
& PG_DIRTY_MASK
);
1173 if (!(pde
& PG_ACCESSED_MASK
) || is_dirty
) {
1174 pde
|= PG_ACCESSED_MASK
;
1176 pde
|= PG_DIRTY_MASK
;
1177 stl_phys_notdirty(pde_addr
, pde
);
1179 /* align to page_size */
1180 pte
= pde
& ((PHYS_ADDR_MASK
& ~(page_size
- 1)) | 0xfff);
1181 virt_addr
= addr
& ~(page_size
- 1);
1184 if (!(pde
& PG_ACCESSED_MASK
)) {
1185 pde
|= PG_ACCESSED_MASK
;
1186 stl_phys_notdirty(pde_addr
, pde
);
1188 pte_addr
= ((pde
& PHYS_ADDR_MASK
) + (((addr
>> 12) & 0x1ff) << 3)) &
1190 pte
= ldq_phys(pte_addr
);
1191 if (!(pte
& PG_PRESENT_MASK
)) {
1195 if (!(env
->efer
& MSR_EFER_NXE
) && (pte
& PG_NX_MASK
)) {
1196 error_code
= PG_ERROR_RSVD_MASK
;
1199 /* combine pde and pte nx, user and rw protections */
1200 ptep
&= pte
^ PG_NX_MASK
;
1202 if ((ptep
& PG_NX_MASK
) && is_write1
== 2)
1203 goto do_fault_protect
;
1205 if (!(ptep
& PG_USER_MASK
))
1206 goto do_fault_protect
;
1207 if (is_write
&& !(ptep
& PG_RW_MASK
))
1208 goto do_fault_protect
;
1210 if ((env
->cr
[0] & CR0_WP_MASK
) &&
1211 is_write
&& !(ptep
& PG_RW_MASK
))
1212 goto do_fault_protect
;
1214 is_dirty
= is_write
&& !(pte
& PG_DIRTY_MASK
);
1215 if (!(pte
& PG_ACCESSED_MASK
) || is_dirty
) {
1216 pte
|= PG_ACCESSED_MASK
;
1218 pte
|= PG_DIRTY_MASK
;
1219 stl_phys_notdirty(pte_addr
, pte
);
1222 virt_addr
= addr
& ~0xfff;
1223 pte
= pte
& (PHYS_ADDR_MASK
| 0xfff);
1228 /* page directory entry */
1229 pde_addr
= ((env
->cr
[3] & ~0xfff) + ((addr
>> 20) & 0xffc)) &
1231 pde
= ldl_phys(pde_addr
);
1232 if (!(pde
& PG_PRESENT_MASK
)) {
1236 /* if PSE bit is set, then we use a 4MB page */
1237 if ((pde
& PG_PSE_MASK
) && (env
->cr
[4] & CR4_PSE_MASK
)) {
1238 page_size
= 4096 * 1024;
1240 if (!(pde
& PG_USER_MASK
))
1241 goto do_fault_protect
;
1242 if (is_write
&& !(pde
& PG_RW_MASK
))
1243 goto do_fault_protect
;
1245 if ((env
->cr
[0] & CR0_WP_MASK
) &&
1246 is_write
&& !(pde
& PG_RW_MASK
))
1247 goto do_fault_protect
;
1249 is_dirty
= is_write
&& !(pde
& PG_DIRTY_MASK
);
1250 if (!(pde
& PG_ACCESSED_MASK
) || is_dirty
) {
1251 pde
|= PG_ACCESSED_MASK
;
1253 pde
|= PG_DIRTY_MASK
;
1254 stl_phys_notdirty(pde_addr
, pde
);
1257 pte
= pde
& ~( (page_size
- 1) & ~0xfff); /* align to page_size */
1259 virt_addr
= addr
& ~(page_size
- 1);
1261 if (!(pde
& PG_ACCESSED_MASK
)) {
1262 pde
|= PG_ACCESSED_MASK
;
1263 stl_phys_notdirty(pde_addr
, pde
);
1266 /* page directory entry */
1267 pte_addr
= ((pde
& ~0xfff) + ((addr
>> 10) & 0xffc)) &
1269 pte
= ldl_phys(pte_addr
);
1270 if (!(pte
& PG_PRESENT_MASK
)) {
1274 /* combine pde and pte user and rw protections */
1277 if (!(ptep
& PG_USER_MASK
))
1278 goto do_fault_protect
;
1279 if (is_write
&& !(ptep
& PG_RW_MASK
))
1280 goto do_fault_protect
;
1282 if ((env
->cr
[0] & CR0_WP_MASK
) &&
1283 is_write
&& !(ptep
& PG_RW_MASK
))
1284 goto do_fault_protect
;
1286 is_dirty
= is_write
&& !(pte
& PG_DIRTY_MASK
);
1287 if (!(pte
& PG_ACCESSED_MASK
) || is_dirty
) {
1288 pte
|= PG_ACCESSED_MASK
;
1290 pte
|= PG_DIRTY_MASK
;
1291 stl_phys_notdirty(pte_addr
, pte
);
1294 virt_addr
= addr
& ~0xfff;
1297 /* the page can be put in the TLB */
1299 if (!(ptep
& PG_NX_MASK
))
1301 if (pte
& PG_DIRTY_MASK
) {
1302 /* only set write access if already dirty... otherwise wait
1305 if (ptep
& PG_RW_MASK
)
1308 if (!(env
->cr
[0] & CR0_WP_MASK
) ||
1309 (ptep
& PG_RW_MASK
))
1314 pte
= pte
& env
->a20_mask
;
1316 /* Even if 4MB pages, we map only one 4KB page in the cache to
1317 avoid filling it too fast */
1318 page_offset
= (addr
& TARGET_PAGE_MASK
) & (page_size
- 1);
1319 paddr
= (pte
& TARGET_PAGE_MASK
) + page_offset
;
1320 vaddr
= virt_addr
+ page_offset
;
1322 ret
= tlb_set_page_exec(env
, vaddr
, paddr
, prot
, mmu_idx
, is_softmmu
);
1325 error_code
= PG_ERROR_P_MASK
;
1327 error_code
|= (is_write
<< PG_ERROR_W_BIT
);
1329 error_code
|= PG_ERROR_U_MASK
;
1330 if (is_write1
== 2 &&
1331 (env
->efer
& MSR_EFER_NXE
) &&
1332 (env
->cr
[4] & CR4_PAE_MASK
))
1333 error_code
|= PG_ERROR_I_D_MASK
;
1334 if (env
->intercept_exceptions
& (1 << EXCP0E_PAGE
)) {
1335 /* cr2 is not modified in case of exceptions */
1336 stq_phys(env
->vm_vmcb
+ offsetof(struct vmcb
, control
.exit_info_2
),
1341 env
->error_code
= error_code
;
1342 env
->exception_index
= EXCP0E_PAGE
;
1346 target_phys_addr_t
cpu_get_phys_page_debug(CPUState
*env
, target_ulong addr
)
1348 target_ulong pde_addr
, pte_addr
;
1350 target_phys_addr_t paddr
;
1351 uint32_t page_offset
;
1354 if (env
->cr
[4] & CR4_PAE_MASK
) {
1355 target_ulong pdpe_addr
;
1358 #ifdef TARGET_X86_64
1359 if (env
->hflags
& HF_LMA_MASK
) {
1360 uint64_t pml4e_addr
, pml4e
;
1363 /* test virtual address sign extension */
1364 sext
= (int64_t)addr
>> 47;
1365 if (sext
!= 0 && sext
!= -1)
1368 pml4e_addr
= ((env
->cr
[3] & ~0xfff) + (((addr
>> 39) & 0x1ff) << 3)) &
1370 pml4e
= ldq_phys(pml4e_addr
);
1371 if (!(pml4e
& PG_PRESENT_MASK
))
1374 pdpe_addr
= ((pml4e
& ~0xfff) + (((addr
>> 30) & 0x1ff) << 3)) &
1376 pdpe
= ldq_phys(pdpe_addr
);
1377 if (!(pdpe
& PG_PRESENT_MASK
))
1382 pdpe_addr
= ((env
->cr
[3] & ~0x1f) + ((addr
>> 27) & 0x18)) &
1384 pdpe
= ldq_phys(pdpe_addr
);
1385 if (!(pdpe
& PG_PRESENT_MASK
))
1389 pde_addr
= ((pdpe
& ~0xfff) + (((addr
>> 21) & 0x1ff) << 3)) &
1391 pde
= ldq_phys(pde_addr
);
1392 if (!(pde
& PG_PRESENT_MASK
)) {
1395 if (pde
& PG_PSE_MASK
) {
1397 page_size
= 2048 * 1024;
1398 pte
= pde
& ~( (page_size
- 1) & ~0xfff); /* align to page_size */
1401 pte_addr
= ((pde
& ~0xfff) + (((addr
>> 12) & 0x1ff) << 3)) &
1404 pte
= ldq_phys(pte_addr
);
1406 if (!(pte
& PG_PRESENT_MASK
))
1411 if (!(env
->cr
[0] & CR0_PG_MASK
)) {
1415 /* page directory entry */
1416 pde_addr
= ((env
->cr
[3] & ~0xfff) + ((addr
>> 20) & 0xffc)) & env
->a20_mask
;
1417 pde
= ldl_phys(pde_addr
);
1418 if (!(pde
& PG_PRESENT_MASK
))
1420 if ((pde
& PG_PSE_MASK
) && (env
->cr
[4] & CR4_PSE_MASK
)) {
1421 pte
= pde
& ~0x003ff000; /* align to 4MB */
1422 page_size
= 4096 * 1024;
1424 /* page directory entry */
1425 pte_addr
= ((pde
& ~0xfff) + ((addr
>> 10) & 0xffc)) & env
->a20_mask
;
1426 pte
= ldl_phys(pte_addr
);
1427 if (!(pte
& PG_PRESENT_MASK
))
1432 pte
= pte
& env
->a20_mask
;
1435 page_offset
= (addr
& TARGET_PAGE_MASK
) & (page_size
- 1);
1436 paddr
= (pte
& TARGET_PAGE_MASK
) + page_offset
;
1440 void hw_breakpoint_insert(CPUState
*env
, int index
)
1444 switch (hw_breakpoint_type(env
->dr
[7], index
)) {
1446 if (hw_breakpoint_enabled(env
->dr
[7], index
))
1447 err
= cpu_breakpoint_insert(env
, env
->dr
[index
], BP_CPU
,
1448 &env
->cpu_breakpoint
[index
]);
1451 type
= BP_CPU
| BP_MEM_WRITE
;
1454 /* No support for I/O watchpoints yet */
1457 type
= BP_CPU
| BP_MEM_ACCESS
;
1459 err
= cpu_watchpoint_insert(env
, env
->dr
[index
],
1460 hw_breakpoint_len(env
->dr
[7], index
),
1461 type
, &env
->cpu_watchpoint
[index
]);
1465 env
->cpu_breakpoint
[index
] = NULL
;
1468 void hw_breakpoint_remove(CPUState
*env
, int index
)
1470 if (!env
->cpu_breakpoint
[index
])
1472 switch (hw_breakpoint_type(env
->dr
[7], index
)) {
1474 if (hw_breakpoint_enabled(env
->dr
[7], index
))
1475 cpu_breakpoint_remove_by_ref(env
, env
->cpu_breakpoint
[index
]);
1479 cpu_watchpoint_remove_by_ref(env
, env
->cpu_watchpoint
[index
]);
1482 /* No support for I/O watchpoints yet */
1487 int check_hw_breakpoints(CPUState
*env
, int force_dr6_update
)
1491 int hit_enabled
= 0;
1493 dr6
= env
->dr
[6] & ~0xf;
1494 for (reg
= 0; reg
< 4; reg
++) {
1495 type
= hw_breakpoint_type(env
->dr
[7], reg
);
1496 if ((type
== 0 && env
->dr
[reg
] == env
->eip
) ||
1497 ((type
& 1) && env
->cpu_watchpoint
[reg
] &&
1498 (env
->cpu_watchpoint
[reg
]->flags
& BP_WATCHPOINT_HIT
))) {
1500 if (hw_breakpoint_enabled(env
->dr
[7], reg
))
1504 if (hit_enabled
|| force_dr6_update
)
1509 static CPUDebugExcpHandler
*prev_debug_excp_handler
;
1511 void raise_exception(int exception_index
);
1513 static void breakpoint_handler(CPUState
*env
)
1517 if (env
->watchpoint_hit
) {
1518 if (env
->watchpoint_hit
->flags
& BP_CPU
) {
1519 env
->watchpoint_hit
= NULL
;
1520 if (check_hw_breakpoints(env
, 0))
1521 raise_exception(EXCP01_DB
);
1523 cpu_resume_from_signal(env
, NULL
);
1526 QTAILQ_FOREACH(bp
, &env
->breakpoints
, entry
)
1527 if (bp
->pc
== env
->eip
) {
1528 if (bp
->flags
& BP_CPU
) {
1529 check_hw_breakpoints(env
, 1);
1530 raise_exception(EXCP01_DB
);
1535 if (prev_debug_excp_handler
)
1536 prev_debug_excp_handler(env
);
1539 /* This should come from sysemu.h - if we could include it here... */
1540 void qemu_system_reset_request(void);
1542 void cpu_inject_x86_mce(CPUState
*cenv
, int bank
, uint64_t status
,
1543 uint64_t mcg_status
, uint64_t addr
, uint64_t misc
)
1545 uint64_t mcg_cap
= cenv
->mcg_cap
;
1546 unsigned bank_num
= mcg_cap
& 0xff;
1547 uint64_t *banks
= cenv
->mce_banks
;
1549 if (bank
>= bank_num
|| !(status
& MCI_STATUS_VAL
))
1553 * if MSR_MCG_CTL is not all 1s, the uncorrected error
1554 * reporting is disabled
1556 if ((status
& MCI_STATUS_UC
) && (mcg_cap
& MCG_CTL_P
) &&
1557 cenv
->mcg_ctl
!= ~(uint64_t)0)
1561 * if MSR_MCi_CTL is not all 1s, the uncorrected error
1562 * reporting is disabled for the bank
1564 if ((status
& MCI_STATUS_UC
) && banks
[0] != ~(uint64_t)0)
1566 if (status
& MCI_STATUS_UC
) {
1567 if ((cenv
->mcg_status
& MCG_STATUS_MCIP
) ||
1568 !(cenv
->cr
[4] & CR4_MCE_MASK
)) {
1569 fprintf(stderr
, "injects mce exception while previous "
1570 "one is in progress!\n");
1571 qemu_log_mask(CPU_LOG_RESET
, "Triple fault\n");
1572 qemu_system_reset_request();
1575 if (banks
[1] & MCI_STATUS_VAL
)
1576 status
|= MCI_STATUS_OVER
;
1579 cenv
->mcg_status
= mcg_status
;
1581 cpu_interrupt(cenv
, CPU_INTERRUPT_MCE
);
1582 } else if (!(banks
[1] & MCI_STATUS_VAL
)
1583 || !(banks
[1] & MCI_STATUS_UC
)) {
1584 if (banks
[1] & MCI_STATUS_VAL
)
1585 status
|= MCI_STATUS_OVER
;
1590 banks
[1] |= MCI_STATUS_OVER
;
1592 #endif /* !CONFIG_USER_ONLY */
1594 static void mce_init(CPUX86State
*cenv
)
1596 unsigned int bank
, bank_num
;
1598 if (((cenv
->cpuid_version
>> 8)&0xf) >= 6
1599 && (cenv
->cpuid_features
&(CPUID_MCE
|CPUID_MCA
)) == (CPUID_MCE
|CPUID_MCA
)) {
1600 cenv
->mcg_cap
= MCE_CAP_DEF
| MCE_BANKS_DEF
;
1601 cenv
->mcg_ctl
= ~(uint64_t)0;
1602 bank_num
= MCE_BANKS_DEF
;
1603 for (bank
= 0; bank
< bank_num
; bank
++)
1604 cenv
->mce_banks
[bank
*4] = ~(uint64_t)0;
1608 static void host_cpuid(uint32_t function
, uint32_t count
,
1609 uint32_t *eax
, uint32_t *ebx
,
1610 uint32_t *ecx
, uint32_t *edx
)
1612 #if defined(CONFIG_KVM)
1616 asm volatile("cpuid"
1617 : "=a"(vec
[0]), "=b"(vec
[1]),
1618 "=c"(vec
[2]), "=d"(vec
[3])
1619 : "0"(function
), "c"(count
) : "cc");
1621 asm volatile("pusha \n\t"
1623 "mov %%eax, 0(%2) \n\t"
1624 "mov %%ebx, 4(%2) \n\t"
1625 "mov %%ecx, 8(%2) \n\t"
1626 "mov %%edx, 12(%2) \n\t"
1628 : : "a"(function
), "c"(count
), "S"(vec
)
1643 static void get_cpuid_vendor(CPUX86State
*env
, uint32_t *ebx
,
1644 uint32_t *ecx
, uint32_t *edx
)
1646 *ebx
= env
->cpuid_vendor1
;
1647 *edx
= env
->cpuid_vendor2
;
1648 *ecx
= env
->cpuid_vendor3
;
1650 /* sysenter isn't supported on compatibility mode on AMD, syscall
1651 * isn't supported in compatibility mode on Intel.
1652 * Normally we advertise the actual cpu vendor, but you can override
1653 * this if you want to use KVM's sysenter/syscall emulation
1654 * in compatibility mode and when doing cross vendor migration
1656 if (kvm_enabled() && env
->cpuid_vendor_override
) {
1657 host_cpuid(0, 0, NULL
, ebx
, ecx
, edx
);
1661 void cpu_x86_cpuid(CPUX86State
*env
, uint32_t index
, uint32_t count
,
1662 uint32_t *eax
, uint32_t *ebx
,
1663 uint32_t *ecx
, uint32_t *edx
)
1665 /* test if maximum index reached */
1666 if (index
& 0x80000000) {
1667 if (index
> env
->cpuid_xlevel
)
1668 index
= env
->cpuid_level
;
1670 if (index
> env
->cpuid_level
)
1671 index
= env
->cpuid_level
;
1676 *eax
= env
->cpuid_level
;
1677 get_cpuid_vendor(env
, ebx
, ecx
, edx
);
1680 *eax
= env
->cpuid_version
;
1681 *ebx
= (env
->cpuid_apic_id
<< 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1682 *ecx
= env
->cpuid_ext_features
;
1683 *edx
= env
->cpuid_features
;
1684 if (env
->nr_cores
* env
->nr_threads
> 1) {
1685 *ebx
|= (env
->nr_cores
* env
->nr_threads
) << 16;
1686 *edx
|= 1 << 28; /* HTT bit */
1690 /* cache info: needed for Pentium Pro compatibility */
1697 /* cache info: needed for Core compatibility */
1698 if (env
->nr_cores
> 1) {
1699 *eax
= (env
->nr_cores
- 1) << 26;
1704 case 0: /* L1 dcache info */
1710 case 1: /* L1 icache info */
1716 case 2: /* L2 cache info */
1718 if (env
->nr_threads
> 1) {
1719 *eax
|= (env
->nr_threads
- 1) << 14;
1725 default: /* end of info */
1734 /* mwait info: needed for Core compatibility */
1735 *eax
= 0; /* Smallest monitor-line size in bytes */
1736 *ebx
= 0; /* Largest monitor-line size in bytes */
1737 *ecx
= CPUID_MWAIT_EMX
| CPUID_MWAIT_IBE
;
1741 /* Thermal and Power Leaf */
1748 /* Direct Cache Access Information Leaf */
1749 *eax
= 0; /* Bits 0-31 in DCA_CAP MSR */
1755 /* Architectural Performance Monitoring Leaf */
1762 *eax
= env
->cpuid_xlevel
;
1763 *ebx
= env
->cpuid_vendor1
;
1764 *edx
= env
->cpuid_vendor2
;
1765 *ecx
= env
->cpuid_vendor3
;
1768 *eax
= env
->cpuid_version
;
1770 *ecx
= env
->cpuid_ext3_features
;
1771 *edx
= env
->cpuid_ext2_features
;
1773 /* The Linux kernel checks for the CMPLegacy bit and
1774 * discards multiple thread information if it is set.
1775 * So dont set it here for Intel to make Linux guests happy.
1777 if (env
->nr_cores
* env
->nr_threads
> 1) {
1778 uint32_t tebx
, tecx
, tedx
;
1779 get_cpuid_vendor(env
, &tebx
, &tecx
, &tedx
);
1780 if (tebx
!= CPUID_VENDOR_INTEL_1
||
1781 tedx
!= CPUID_VENDOR_INTEL_2
||
1782 tecx
!= CPUID_VENDOR_INTEL_3
) {
1783 *ecx
|= 1 << 1; /* CmpLegacy bit */
1787 if (kvm_enabled()) {
1788 /* Nested SVM not yet supported in upstream QEMU */
1789 *ecx
&= ~CPUID_EXT3_SVM
;
1795 *eax
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 0];
1796 *ebx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 1];
1797 *ecx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 2];
1798 *edx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 3];
1801 /* cache info (L1 cache) */
1808 /* cache info (L2 cache) */
1815 /* virtual & phys address size in low 2 bytes. */
1816 /* XXX: This value must match the one used in the MMU code. */
1817 if (env
->cpuid_ext2_features
& CPUID_EXT2_LM
) {
1818 /* 64 bit processor */
1819 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1820 *eax
= 0x00003028; /* 48 bits virtual, 40 bits physical */
1822 if (env
->cpuid_features
& CPUID_PSE36
)
1823 *eax
= 0x00000024; /* 36 bits physical */
1825 *eax
= 0x00000020; /* 32 bits physical */
1830 if (env
->nr_cores
* env
->nr_threads
> 1) {
1831 *ecx
|= (env
->nr_cores
* env
->nr_threads
) - 1;
1835 *eax
= 0x00000001; /* SVM Revision */
1836 *ebx
= 0x00000010; /* nr of ASIDs */
1838 *edx
= 0; /* optional features */
1841 /* reserved values: zero */
1851 int cpu_x86_get_descr_debug(CPUX86State
*env
, unsigned int selector
,
1852 target_ulong
*base
, unsigned int *limit
,
1853 unsigned int *flags
)
1864 index
= selector
& ~7;
1865 ptr
= dt
->base
+ index
;
1866 if ((index
+ 7) > dt
->limit
1867 || cpu_memory_rw_debug(env
, ptr
, (uint8_t *)&e1
, sizeof(e1
), 0) != 0
1868 || cpu_memory_rw_debug(env
, ptr
+4, (uint8_t *)&e2
, sizeof(e2
), 0) != 0)
1871 *base
= ((e1
>> 16) | ((e2
& 0xff) << 16) | (e2
& 0xff000000));
1872 *limit
= (e1
& 0xffff) | (e2
& 0x000f0000);
1873 if (e2
& DESC_G_MASK
)
1874 *limit
= (*limit
<< 12) | 0xfff;
1880 CPUX86State
*cpu_x86_init(const char *cpu_model
)
1885 env
= qemu_mallocz(sizeof(CPUX86State
));
1887 env
->cpu_model_str
= cpu_model
;
1889 /* init various static tables */
1892 optimize_flags_init();
1893 #ifndef CONFIG_USER_ONLY
1894 prev_debug_excp_handler
=
1895 cpu_set_debug_excp_handler(breakpoint_handler
);
1898 if (cpu_x86_register(env
, cpu_model
) < 0) {
1904 qemu_init_vcpu(env
);
1909 #if !defined(CONFIG_USER_ONLY)
1910 void do_cpu_init(CPUState
*env
)
1912 int sipi
= env
->interrupt_request
& CPU_INTERRUPT_SIPI
;
1914 env
->interrupt_request
= sipi
;
1915 apic_init_reset(env
);
1918 void do_cpu_sipi(CPUState
*env
)
1923 void do_cpu_init(CPUState
*env
)
1926 void do_cpu_sipi(CPUState
*env
)