]>
git.proxmox.com Git - qemu.git/blob - target-i386/helper.c
2 * i386 helpers (without register variable usage)
4 * Copyright (c) 2003 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31 #include "qemu-common.h"
35 static int cpu_x86_register (CPUX86State
*env
, const char *cpu_model
);
37 static void add_flagname_to_bitmaps(char *flagname
, uint32_t *features
,
38 uint32_t *ext_features
,
39 uint32_t *ext2_features
,
40 uint32_t *ext3_features
)
43 /* feature flags taken from "Intel Processor Identification and the CPUID
44 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
45 * about feature names, the Linux name is used. */
46 static const char *feature_name
[] = {
47 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
48 "cx8", "apic", NULL
, "sep", "mtrr", "pge", "mca", "cmov",
49 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL
, "ds" /* Intel dts */, "acpi", "mmx",
50 "fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe",
52 static const char *ext_feature_name
[] = {
53 "pni" /* Intel,AMD sse3 */, NULL
, NULL
, "monitor", "ds_cpl", "vmx", NULL
/* Linux smx */, "est",
54 "tm2", "ssse3", "cid", NULL
, NULL
, "cx16", "xtpr", NULL
,
55 NULL
, NULL
, "dca", NULL
, NULL
, NULL
, NULL
, "popcnt",
56 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
58 static const char *ext2_feature_name
[] = {
59 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
60 "cx8" /* AMD CMPXCHG8B */, "apic", NULL
, "syscall", "mttr", "pge", "mca", "cmov",
61 "pat", "pse36", NULL
, NULL
/* Linux mp */, "nx" /* Intel xd */, NULL
, "mmxext", "mmx",
62 "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL
, "lm" /* Intel 64 */, "3dnowext", "3dnow",
64 static const char *ext3_feature_name
[] = {
65 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
66 "3dnowprefetch", "osvw", NULL
/* Linux ibs */, NULL
, "skinit", "wdt", NULL
, NULL
,
67 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
68 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
71 for ( i
= 0 ; i
< 32 ; i
++ )
72 if (feature_name
[i
] && !strcmp (flagname
, feature_name
[i
])) {
76 for ( i
= 0 ; i
< 32 ; i
++ )
77 if (ext_feature_name
[i
] && !strcmp (flagname
, ext_feature_name
[i
])) {
78 *ext_features
|= 1 << i
;
81 for ( i
= 0 ; i
< 32 ; i
++ )
82 if (ext2_feature_name
[i
] && !strcmp (flagname
, ext2_feature_name
[i
])) {
83 *ext2_features
|= 1 << i
;
86 for ( i
= 0 ; i
< 32 ; i
++ )
87 if (ext3_feature_name
[i
] && !strcmp (flagname
, ext3_feature_name
[i
])) {
88 *ext3_features
|= 1 << i
;
91 fprintf(stderr
, "CPU feature %s not found\n", flagname
);
94 CPUX86State
*cpu_x86_init(const char *cpu_model
)
99 env
= qemu_mallocz(sizeof(CPUX86State
));
103 env
->cpu_model_str
= cpu_model
;
105 /* init various static tables */
108 optimize_flags_init();
110 if (cpu_x86_register(env
, cpu_model
) < 0) {
121 typedef struct x86_def_t
{
124 uint32_t vendor1
, vendor2
, vendor3
;
128 uint32_t features
, ext_features
, ext2_features
, ext3_features
;
133 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
134 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
135 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX)
136 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
137 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
138 CPUID_PSE36 | CPUID_FXSR)
139 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
140 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
141 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
142 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
143 CPUID_PAE | CPUID_SEP | CPUID_APIC)
144 static x86_def_t x86_defs
[] = {
149 .vendor1
= CPUID_VENDOR_AMD_1
,
150 .vendor2
= CPUID_VENDOR_AMD_2
,
151 .vendor3
= CPUID_VENDOR_AMD_3
,
155 .features
= PPRO_FEATURES
|
156 /* these features are needed for Win64 and aren't fully implemented */
157 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
158 /* this feature is needed for Solaris and isn't fully implemented */
160 .ext_features
= CPUID_EXT_SSE3
,
161 .ext2_features
= (PPRO_FEATURES
& 0x0183F3FF) |
162 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
|
163 CPUID_EXT2_3DNOW
| CPUID_EXT2_3DNOWEXT
,
164 .ext3_features
= CPUID_EXT3_SVM
,
165 .xlevel
= 0x8000000A,
166 .model_id
= "QEMU Virtual CPU version " QEMU_VERSION
,
174 /* The original CPU also implements these features:
175 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
176 CPUID_TM, CPUID_PBE */
177 .features
= PPRO_FEATURES
|
178 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
180 /* The original CPU also implements these ext features:
181 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
182 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
183 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_SSSE3
,
184 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
185 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
186 .xlevel
= 0x80000008,
187 .model_id
= "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
196 .features
= PPRO_FEATURES
,
197 .ext_features
= CPUID_EXT_SSE3
,
199 .model_id
= "QEMU Virtual CPU version " QEMU_VERSION
,
207 /* The original CPU also implements these features:
208 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
209 CPUID_TM, CPUID_PBE */
210 .features
= PPRO_FEATURES
| CPUID_VME
|
211 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
,
212 /* The original CPU also implements these ext features:
213 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
215 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
,
216 .ext2_features
= CPUID_EXT2_NX
,
217 .xlevel
= 0x80000008,
218 .model_id
= "Genuine Intel(R) CPU T2600 @ 2.16GHz",
226 .features
= I486_FEATURES
,
235 .features
= PENTIUM_FEATURES
,
244 .features
= PENTIUM2_FEATURES
,
253 .features
= PENTIUM3_FEATURES
,
259 .vendor1
= 0x68747541, /* "Auth" */
260 .vendor2
= 0x69746e65, /* "enti" */
261 .vendor3
= 0x444d4163, /* "cAMD" */
265 .features
= PPRO_FEATURES
| CPUID_PSE36
| CPUID_VME
| CPUID_MTRR
| CPUID_MCA
,
266 .ext2_features
= (PPRO_FEATURES
& 0x0183F3FF) | CPUID_EXT2_MMXEXT
| CPUID_EXT2_3DNOW
| CPUID_EXT2_3DNOWEXT
,
267 .xlevel
= 0x80000008,
268 /* XXX: put another string ? */
269 .model_id
= "QEMU Virtual CPU version " QEMU_VERSION
,
273 /* original is on level 10 */
278 .features
= PPRO_FEATURES
|
279 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
| CPUID_VME
,
280 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
281 * CPUID_HT | CPUID_TM | CPUID_PBE */
282 /* Some CPUs got no CPUID_SEP */
283 .ext_features
= CPUID_EXT_MONITOR
|
284 CPUID_EXT_SSE3
/* PNI */ | CPUID_EXT_SSSE3
,
285 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
286 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
287 .ext2_features
= (PPRO_FEATURES
& 0x0183F3FF) | CPUID_EXT2_NX
,
288 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
289 .xlevel
= 0x8000000A,
290 .model_id
= "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
294 static int cpu_x86_find_by_name(x86_def_t
*x86_cpu_def
, const char *cpu_model
)
299 char *s
= strdup(cpu_model
);
300 char *featurestr
, *name
= strtok(s
, ",");
301 uint32_t plus_features
= 0, plus_ext_features
= 0, plus_ext2_features
= 0, plus_ext3_features
= 0;
302 uint32_t minus_features
= 0, minus_ext_features
= 0, minus_ext2_features
= 0, minus_ext3_features
= 0;
303 int family
= -1, model
= -1, stepping
= -1;
306 for (i
= 0; i
< sizeof(x86_defs
) / sizeof(x86_def_t
); i
++) {
307 if (strcmp(name
, x86_defs
[i
].name
) == 0) {
314 memcpy(x86_cpu_def
, def
, sizeof(*def
));
316 featurestr
= strtok(NULL
, ",");
320 if (featurestr
[0] == '+') {
321 add_flagname_to_bitmaps(featurestr
+ 1, &plus_features
, &plus_ext_features
, &plus_ext2_features
, &plus_ext3_features
);
322 } else if (featurestr
[0] == '-') {
323 add_flagname_to_bitmaps(featurestr
+ 1, &minus_features
, &minus_ext_features
, &minus_ext2_features
, &minus_ext3_features
);
324 } else if ((val
= strchr(featurestr
, '='))) {
326 if (!strcmp(featurestr
, "family")) {
328 family
= strtol(val
, &err
, 10);
329 if (!*val
|| *err
|| family
< 0) {
330 fprintf(stderr
, "bad numerical value %s\n", val
);
333 x86_cpu_def
->family
= family
;
334 } else if (!strcmp(featurestr
, "model")) {
336 model
= strtol(val
, &err
, 10);
337 if (!*val
|| *err
|| model
< 0 || model
> 0xf) {
338 fprintf(stderr
, "bad numerical value %s\n", val
);
341 x86_cpu_def
->model
= model
;
342 } else if (!strcmp(featurestr
, "stepping")) {
344 stepping
= strtol(val
, &err
, 10);
345 if (!*val
|| *err
|| stepping
< 0 || stepping
> 0xf) {
346 fprintf(stderr
, "bad numerical value %s\n", val
);
349 x86_cpu_def
->stepping
= stepping
;
350 } else if (!strcmp(featurestr
, "vendor")) {
351 if (strlen(val
) != 12) {
352 fprintf(stderr
, "vendor string must be 12 chars long\n");
355 x86_cpu_def
->vendor1
= 0;
356 x86_cpu_def
->vendor2
= 0;
357 x86_cpu_def
->vendor3
= 0;
358 for(i
= 0; i
< 4; i
++) {
359 x86_cpu_def
->vendor1
|= ((uint8_t)val
[i
]) << (8 * i
);
360 x86_cpu_def
->vendor2
|= ((uint8_t)val
[i
+ 4]) << (8 * i
);
361 x86_cpu_def
->vendor3
|= ((uint8_t)val
[i
+ 8]) << (8 * i
);
363 } else if (!strcmp(featurestr
, "model_id")) {
364 pstrcpy(x86_cpu_def
->model_id
, sizeof(x86_cpu_def
->model_id
),
367 fprintf(stderr
, "unrecognized feature %s\n", featurestr
);
371 fprintf(stderr
, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr
);
374 featurestr
= strtok(NULL
, ",");
376 x86_cpu_def
->features
|= plus_features
;
377 x86_cpu_def
->ext_features
|= plus_ext_features
;
378 x86_cpu_def
->ext2_features
|= plus_ext2_features
;
379 x86_cpu_def
->ext3_features
|= plus_ext3_features
;
380 x86_cpu_def
->features
&= ~minus_features
;
381 x86_cpu_def
->ext_features
&= ~minus_ext_features
;
382 x86_cpu_def
->ext2_features
&= ~minus_ext2_features
;
383 x86_cpu_def
->ext3_features
&= ~minus_ext3_features
;
392 void x86_cpu_list (FILE *f
, int (*cpu_fprintf
)(FILE *f
, const char *fmt
, ...))
396 for (i
= 0; i
< sizeof(x86_defs
) / sizeof(x86_def_t
); i
++)
397 (*cpu_fprintf
)(f
, "x86 %16s\n", x86_defs
[i
].name
);
400 static int cpu_x86_register (CPUX86State
*env
, const char *cpu_model
)
402 x86_def_t def1
, *def
= &def1
;
404 if (cpu_x86_find_by_name(def
, cpu_model
) < 0)
407 env
->cpuid_vendor1
= def
->vendor1
;
408 env
->cpuid_vendor2
= def
->vendor2
;
409 env
->cpuid_vendor3
= def
->vendor3
;
411 env
->cpuid_vendor1
= CPUID_VENDOR_INTEL_1
;
412 env
->cpuid_vendor2
= CPUID_VENDOR_INTEL_2
;
413 env
->cpuid_vendor3
= CPUID_VENDOR_INTEL_3
;
415 env
->cpuid_level
= def
->level
;
416 env
->cpuid_version
= (def
->family
<< 8) | (def
->model
<< 4) | def
->stepping
;
417 env
->cpuid_features
= def
->features
;
418 env
->pat
= 0x0007040600070406ULL
;
419 env
->cpuid_ext_features
= def
->ext_features
;
420 env
->cpuid_ext2_features
= def
->ext2_features
;
421 env
->cpuid_xlevel
= def
->xlevel
;
422 env
->cpuid_ext3_features
= def
->ext3_features
;
424 const char *model_id
= def
->model_id
;
428 len
= strlen(model_id
);
429 for(i
= 0; i
< 48; i
++) {
433 c
= (uint8_t)model_id
[i
];
434 env
->cpuid_model
[i
>> 2] |= c
<< (8 * (i
& 3));
440 /* NOTE: must be called outside the CPU execute loop */
441 void cpu_reset(CPUX86State
*env
)
445 memset(env
, 0, offsetof(CPUX86State
, breakpoints
));
449 env
->old_exception
= -1;
451 /* init to reset state */
453 #ifdef CONFIG_SOFTMMU
454 env
->hflags
|= HF_SOFTMMU_MASK
;
456 env
->hflags2
|= HF2_GIF_MASK
;
458 cpu_x86_update_cr0(env
, 0x60000010);
459 env
->a20_mask
= ~0x0;
460 env
->smbase
= 0x30000;
462 env
->idt
.limit
= 0xffff;
463 env
->gdt
.limit
= 0xffff;
464 env
->ldt
.limit
= 0xffff;
465 env
->ldt
.flags
= DESC_P_MASK
| (2 << DESC_TYPE_SHIFT
);
466 env
->tr
.limit
= 0xffff;
467 env
->tr
.flags
= DESC_P_MASK
| (11 << DESC_TYPE_SHIFT
);
469 cpu_x86_load_seg_cache(env
, R_CS
, 0xf000, 0xffff0000, 0xffff,
470 DESC_P_MASK
| DESC_S_MASK
| DESC_CS_MASK
| DESC_R_MASK
);
471 cpu_x86_load_seg_cache(env
, R_DS
, 0, 0, 0xffff,
472 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
);
473 cpu_x86_load_seg_cache(env
, R_ES
, 0, 0, 0xffff,
474 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
);
475 cpu_x86_load_seg_cache(env
, R_SS
, 0, 0, 0xffff,
476 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
);
477 cpu_x86_load_seg_cache(env
, R_FS
, 0, 0, 0xffff,
478 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
);
479 cpu_x86_load_seg_cache(env
, R_GS
, 0, 0, 0xffff,
480 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
);
483 env
->regs
[R_EDX
] = env
->cpuid_version
;
488 for(i
= 0;i
< 8; i
++)
495 void cpu_x86_close(CPUX86State
*env
)
500 /***********************************************************/
503 static const char *cc_op_str
[] = {
558 void cpu_dump_state(CPUState
*env
, FILE *f
,
559 int (*cpu_fprintf
)(FILE *f
, const char *fmt
, ...),
564 static const char *seg_name
[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
566 eflags
= env
->eflags
;
568 if (env
->hflags
& HF_CS64_MASK
) {
570 "RAX=%016" PRIx64
" RBX=%016" PRIx64
" RCX=%016" PRIx64
" RDX=%016" PRIx64
"\n"
571 "RSI=%016" PRIx64
" RDI=%016" PRIx64
" RBP=%016" PRIx64
" RSP=%016" PRIx64
"\n"
572 "R8 =%016" PRIx64
" R9 =%016" PRIx64
" R10=%016" PRIx64
" R11=%016" PRIx64
"\n"
573 "R12=%016" PRIx64
" R13=%016" PRIx64
" R14=%016" PRIx64
" R15=%016" PRIx64
"\n"
574 "RIP=%016" PRIx64
" RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
592 eflags
& DF_MASK
? 'D' : '-',
593 eflags
& CC_O
? 'O' : '-',
594 eflags
& CC_S
? 'S' : '-',
595 eflags
& CC_Z
? 'Z' : '-',
596 eflags
& CC_A
? 'A' : '-',
597 eflags
& CC_P
? 'P' : '-',
598 eflags
& CC_C
? 'C' : '-',
599 env
->hflags
& HF_CPL_MASK
,
600 (env
->hflags
>> HF_INHIBIT_IRQ_SHIFT
) & 1,
601 (int)(env
->a20_mask
>> 20) & 1,
602 (env
->hflags
>> HF_SMM_SHIFT
) & 1,
607 cpu_fprintf(f
, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
608 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
609 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
610 (uint32_t)env
->regs
[R_EAX
],
611 (uint32_t)env
->regs
[R_EBX
],
612 (uint32_t)env
->regs
[R_ECX
],
613 (uint32_t)env
->regs
[R_EDX
],
614 (uint32_t)env
->regs
[R_ESI
],
615 (uint32_t)env
->regs
[R_EDI
],
616 (uint32_t)env
->regs
[R_EBP
],
617 (uint32_t)env
->regs
[R_ESP
],
618 (uint32_t)env
->eip
, eflags
,
619 eflags
& DF_MASK
? 'D' : '-',
620 eflags
& CC_O
? 'O' : '-',
621 eflags
& CC_S
? 'S' : '-',
622 eflags
& CC_Z
? 'Z' : '-',
623 eflags
& CC_A
? 'A' : '-',
624 eflags
& CC_P
? 'P' : '-',
625 eflags
& CC_C
? 'C' : '-',
626 env
->hflags
& HF_CPL_MASK
,
627 (env
->hflags
>> HF_INHIBIT_IRQ_SHIFT
) & 1,
628 (int)(env
->a20_mask
>> 20) & 1,
629 (env
->hflags
>> HF_SMM_SHIFT
) & 1,
634 if (env
->hflags
& HF_LMA_MASK
) {
635 for(i
= 0; i
< 6; i
++) {
636 SegmentCache
*sc
= &env
->segs
[i
];
637 cpu_fprintf(f
, "%s =%04x %016" PRIx64
" %08x %08x\n",
644 cpu_fprintf(f
, "LDT=%04x %016" PRIx64
" %08x %08x\n",
649 cpu_fprintf(f
, "TR =%04x %016" PRIx64
" %08x %08x\n",
654 cpu_fprintf(f
, "GDT= %016" PRIx64
" %08x\n",
655 env
->gdt
.base
, env
->gdt
.limit
);
656 cpu_fprintf(f
, "IDT= %016" PRIx64
" %08x\n",
657 env
->idt
.base
, env
->idt
.limit
);
658 cpu_fprintf(f
, "CR0=%08x CR2=%016" PRIx64
" CR3=%016" PRIx64
" CR4=%08x\n",
659 (uint32_t)env
->cr
[0],
662 (uint32_t)env
->cr
[4]);
666 for(i
= 0; i
< 6; i
++) {
667 SegmentCache
*sc
= &env
->segs
[i
];
668 cpu_fprintf(f
, "%s =%04x %08x %08x %08x\n",
675 cpu_fprintf(f
, "LDT=%04x %08x %08x %08x\n",
677 (uint32_t)env
->ldt
.base
,
680 cpu_fprintf(f
, "TR =%04x %08x %08x %08x\n",
682 (uint32_t)env
->tr
.base
,
685 cpu_fprintf(f
, "GDT= %08x %08x\n",
686 (uint32_t)env
->gdt
.base
, env
->gdt
.limit
);
687 cpu_fprintf(f
, "IDT= %08x %08x\n",
688 (uint32_t)env
->idt
.base
, env
->idt
.limit
);
689 cpu_fprintf(f
, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
690 (uint32_t)env
->cr
[0],
691 (uint32_t)env
->cr
[2],
692 (uint32_t)env
->cr
[3],
693 (uint32_t)env
->cr
[4]);
695 if (flags
& X86_DUMP_CCOP
) {
696 if ((unsigned)env
->cc_op
< CC_OP_NB
)
697 snprintf(cc_op_name
, sizeof(cc_op_name
), "%s", cc_op_str
[env
->cc_op
]);
699 snprintf(cc_op_name
, sizeof(cc_op_name
), "[%d]", env
->cc_op
);
701 if (env
->hflags
& HF_CS64_MASK
) {
702 cpu_fprintf(f
, "CCS=%016" PRIx64
" CCD=%016" PRIx64
" CCO=%-8s\n",
703 env
->cc_src
, env
->cc_dst
,
708 cpu_fprintf(f
, "CCS=%08x CCD=%08x CCO=%-8s\n",
709 (uint32_t)env
->cc_src
, (uint32_t)env
->cc_dst
,
713 if (flags
& X86_DUMP_FPU
) {
716 for(i
= 0; i
< 8; i
++) {
717 fptag
|= ((!env
->fptags
[i
]) << i
);
719 cpu_fprintf(f
, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
721 (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11,
726 #if defined(USE_X86LDOUBLE)
734 tmp
.d
= env
->fpregs
[i
].d
;
735 cpu_fprintf(f
, "FPR%d=%016" PRIx64
" %04x",
736 i
, tmp
.l
.lower
, tmp
.l
.upper
);
738 cpu_fprintf(f
, "FPR%d=%016" PRIx64
,
739 i
, env
->fpregs
[i
].mmx
.q
);
742 cpu_fprintf(f
, "\n");
746 if (env
->hflags
& HF_CS64_MASK
)
751 cpu_fprintf(f
, "XMM%02d=%08x%08x%08x%08x",
753 env
->xmm_regs
[i
].XMM_L(3),
754 env
->xmm_regs
[i
].XMM_L(2),
755 env
->xmm_regs
[i
].XMM_L(1),
756 env
->xmm_regs
[i
].XMM_L(0));
758 cpu_fprintf(f
, "\n");
765 /***********************************************************/
767 /* XXX: add PGE support */
769 void cpu_x86_set_a20(CPUX86State
*env
, int a20_state
)
771 a20_state
= (a20_state
!= 0);
772 if (a20_state
!= ((env
->a20_mask
>> 20) & 1)) {
773 #if defined(DEBUG_MMU)
774 printf("A20 update: a20=%d\n", a20_state
);
776 /* if the cpu is currently executing code, we must unlink it and
777 all the potentially executing TB */
778 cpu_interrupt(env
, CPU_INTERRUPT_EXITTB
);
780 /* when a20 is changed, all the MMU mappings are invalid, so
781 we must flush everything */
783 env
->a20_mask
= (~0x100000) | (a20_state
<< 20);
787 void cpu_x86_update_cr0(CPUX86State
*env
, uint32_t new_cr0
)
791 #if defined(DEBUG_MMU)
792 printf("CR0 update: CR0=0x%08x\n", new_cr0
);
794 if ((new_cr0
& (CR0_PG_MASK
| CR0_WP_MASK
| CR0_PE_MASK
)) !=
795 (env
->cr
[0] & (CR0_PG_MASK
| CR0_WP_MASK
| CR0_PE_MASK
))) {
800 if (!(env
->cr
[0] & CR0_PG_MASK
) && (new_cr0
& CR0_PG_MASK
) &&
801 (env
->efer
& MSR_EFER_LME
)) {
802 /* enter in long mode */
803 /* XXX: generate an exception */
804 if (!(env
->cr
[4] & CR4_PAE_MASK
))
806 env
->efer
|= MSR_EFER_LMA
;
807 env
->hflags
|= HF_LMA_MASK
;
808 } else if ((env
->cr
[0] & CR0_PG_MASK
) && !(new_cr0
& CR0_PG_MASK
) &&
809 (env
->efer
& MSR_EFER_LMA
)) {
811 env
->efer
&= ~MSR_EFER_LMA
;
812 env
->hflags
&= ~(HF_LMA_MASK
| HF_CS64_MASK
);
813 env
->eip
&= 0xffffffff;
816 env
->cr
[0] = new_cr0
| CR0_ET_MASK
;
818 /* update PE flag in hidden flags */
819 pe_state
= (env
->cr
[0] & CR0_PE_MASK
);
820 env
->hflags
= (env
->hflags
& ~HF_PE_MASK
) | (pe_state
<< HF_PE_SHIFT
);
821 /* ensure that ADDSEG is always set in real mode */
822 env
->hflags
|= ((pe_state
^ 1) << HF_ADDSEG_SHIFT
);
823 /* update FPU flags */
824 env
->hflags
= (env
->hflags
& ~(HF_MP_MASK
| HF_EM_MASK
| HF_TS_MASK
)) |
825 ((new_cr0
<< (HF_MP_SHIFT
- 1)) & (HF_MP_MASK
| HF_EM_MASK
| HF_TS_MASK
));
828 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
830 void cpu_x86_update_cr3(CPUX86State
*env
, target_ulong new_cr3
)
832 env
->cr
[3] = new_cr3
;
833 if (env
->cr
[0] & CR0_PG_MASK
) {
834 #if defined(DEBUG_MMU)
835 printf("CR3 update: CR3=" TARGET_FMT_lx
"\n", new_cr3
);
841 void cpu_x86_update_cr4(CPUX86State
*env
, uint32_t new_cr4
)
843 #if defined(DEBUG_MMU)
844 printf("CR4 update: CR4=%08x\n", (uint32_t)env
->cr
[4]);
846 if ((new_cr4
& (CR4_PGE_MASK
| CR4_PAE_MASK
| CR4_PSE_MASK
)) !=
847 (env
->cr
[4] & (CR4_PGE_MASK
| CR4_PAE_MASK
| CR4_PSE_MASK
))) {
851 if (!(env
->cpuid_features
& CPUID_SSE
))
852 new_cr4
&= ~CR4_OSFXSR_MASK
;
853 if (new_cr4
& CR4_OSFXSR_MASK
)
854 env
->hflags
|= HF_OSFXSR_MASK
;
856 env
->hflags
&= ~HF_OSFXSR_MASK
;
858 env
->cr
[4] = new_cr4
;
861 /* XXX: also flush 4MB pages */
862 void cpu_x86_flush_tlb(CPUX86State
*env
, target_ulong addr
)
864 tlb_flush_page(env
, addr
);
867 #if defined(CONFIG_USER_ONLY)
869 int cpu_x86_handle_mmu_fault(CPUX86State
*env
, target_ulong addr
,
870 int is_write
, int mmu_idx
, int is_softmmu
)
872 /* user mode only emulation */
875 env
->error_code
= (is_write
<< PG_ERROR_W_BIT
);
876 env
->error_code
|= PG_ERROR_U_MASK
;
877 env
->exception_index
= EXCP0E_PAGE
;
881 target_phys_addr_t
cpu_get_phys_page_debug(CPUState
*env
, target_ulong addr
)
888 /* XXX: This value should match the one returned by CPUID
890 #if defined(USE_KQEMU)
891 #define PHYS_ADDR_MASK 0xfffff000LL
893 # if defined(TARGET_X86_64)
894 # define PHYS_ADDR_MASK 0xfffffff000LL
896 # define PHYS_ADDR_MASK 0xffffff000LL
901 -1 = cannot handle fault
902 0 = nothing more to do
903 1 = generate PF fault
904 2 = soft MMU activation required for this block
906 int cpu_x86_handle_mmu_fault(CPUX86State
*env
, target_ulong addr
,
907 int is_write1
, int mmu_idx
, int is_softmmu
)
910 target_ulong pde_addr
, pte_addr
;
911 int error_code
, is_dirty
, prot
, page_size
, ret
, is_write
, is_user
;
912 target_phys_addr_t paddr
;
913 uint32_t page_offset
;
914 target_ulong vaddr
, virt_addr
;
916 is_user
= mmu_idx
== MMU_USER_IDX
;
917 #if defined(DEBUG_MMU)
918 printf("MMU fault: addr=" TARGET_FMT_lx
" w=%d u=%d eip=" TARGET_FMT_lx
"\n",
919 addr
, is_write1
, is_user
, env
->eip
);
921 is_write
= is_write1
& 1;
923 if (!(env
->cr
[0] & CR0_PG_MASK
)) {
925 virt_addr
= addr
& TARGET_PAGE_MASK
;
926 prot
= PAGE_READ
| PAGE_WRITE
| PAGE_EXEC
;
931 if (env
->cr
[4] & CR4_PAE_MASK
) {
933 target_ulong pdpe_addr
;
936 if (env
->hflags
& HF_LMA_MASK
) {
937 uint64_t pml4e_addr
, pml4e
;
940 /* test virtual address sign extension */
941 sext
= (int64_t)addr
>> 47;
942 if (sext
!= 0 && sext
!= -1) {
944 env
->exception_index
= EXCP0D_GPF
;
948 pml4e_addr
= ((env
->cr
[3] & ~0xfff) + (((addr
>> 39) & 0x1ff) << 3)) &
950 pml4e
= ldq_phys(pml4e_addr
);
951 if (!(pml4e
& PG_PRESENT_MASK
)) {
955 if (!(env
->efer
& MSR_EFER_NXE
) && (pml4e
& PG_NX_MASK
)) {
956 error_code
= PG_ERROR_RSVD_MASK
;
959 if (!(pml4e
& PG_ACCESSED_MASK
)) {
960 pml4e
|= PG_ACCESSED_MASK
;
961 stl_phys_notdirty(pml4e_addr
, pml4e
);
963 ptep
= pml4e
^ PG_NX_MASK
;
964 pdpe_addr
= ((pml4e
& PHYS_ADDR_MASK
) + (((addr
>> 30) & 0x1ff) << 3)) &
966 pdpe
= ldq_phys(pdpe_addr
);
967 if (!(pdpe
& PG_PRESENT_MASK
)) {
971 if (!(env
->efer
& MSR_EFER_NXE
) && (pdpe
& PG_NX_MASK
)) {
972 error_code
= PG_ERROR_RSVD_MASK
;
975 ptep
&= pdpe
^ PG_NX_MASK
;
976 if (!(pdpe
& PG_ACCESSED_MASK
)) {
977 pdpe
|= PG_ACCESSED_MASK
;
978 stl_phys_notdirty(pdpe_addr
, pdpe
);
983 /* XXX: load them when cr3 is loaded ? */
984 pdpe_addr
= ((env
->cr
[3] & ~0x1f) + ((addr
>> 27) & 0x18)) &
986 pdpe
= ldq_phys(pdpe_addr
);
987 if (!(pdpe
& PG_PRESENT_MASK
)) {
991 ptep
= PG_NX_MASK
| PG_USER_MASK
| PG_RW_MASK
;
994 pde_addr
= ((pdpe
& PHYS_ADDR_MASK
) + (((addr
>> 21) & 0x1ff) << 3)) &
996 pde
= ldq_phys(pde_addr
);
997 if (!(pde
& PG_PRESENT_MASK
)) {
1001 if (!(env
->efer
& MSR_EFER_NXE
) && (pde
& PG_NX_MASK
)) {
1002 error_code
= PG_ERROR_RSVD_MASK
;
1005 ptep
&= pde
^ PG_NX_MASK
;
1006 if (pde
& PG_PSE_MASK
) {
1008 page_size
= 2048 * 1024;
1010 if ((ptep
& PG_NX_MASK
) && is_write1
== 2)
1011 goto do_fault_protect
;
1013 if (!(ptep
& PG_USER_MASK
))
1014 goto do_fault_protect
;
1015 if (is_write
&& !(ptep
& PG_RW_MASK
))
1016 goto do_fault_protect
;
1018 if ((env
->cr
[0] & CR0_WP_MASK
) &&
1019 is_write
&& !(ptep
& PG_RW_MASK
))
1020 goto do_fault_protect
;
1022 is_dirty
= is_write
&& !(pde
& PG_DIRTY_MASK
);
1023 if (!(pde
& PG_ACCESSED_MASK
) || is_dirty
) {
1024 pde
|= PG_ACCESSED_MASK
;
1026 pde
|= PG_DIRTY_MASK
;
1027 stl_phys_notdirty(pde_addr
, pde
);
1029 /* align to page_size */
1030 pte
= pde
& ((PHYS_ADDR_MASK
& ~(page_size
- 1)) | 0xfff);
1031 virt_addr
= addr
& ~(page_size
- 1);
1034 if (!(pde
& PG_ACCESSED_MASK
)) {
1035 pde
|= PG_ACCESSED_MASK
;
1036 stl_phys_notdirty(pde_addr
, pde
);
1038 pte_addr
= ((pde
& PHYS_ADDR_MASK
) + (((addr
>> 12) & 0x1ff) << 3)) &
1040 pte
= ldq_phys(pte_addr
);
1041 if (!(pte
& PG_PRESENT_MASK
)) {
1045 if (!(env
->efer
& MSR_EFER_NXE
) && (pte
& PG_NX_MASK
)) {
1046 error_code
= PG_ERROR_RSVD_MASK
;
1049 /* combine pde and pte nx, user and rw protections */
1050 ptep
&= pte
^ PG_NX_MASK
;
1052 if ((ptep
& PG_NX_MASK
) && is_write1
== 2)
1053 goto do_fault_protect
;
1055 if (!(ptep
& PG_USER_MASK
))
1056 goto do_fault_protect
;
1057 if (is_write
&& !(ptep
& PG_RW_MASK
))
1058 goto do_fault_protect
;
1060 if ((env
->cr
[0] & CR0_WP_MASK
) &&
1061 is_write
&& !(ptep
& PG_RW_MASK
))
1062 goto do_fault_protect
;
1064 is_dirty
= is_write
&& !(pte
& PG_DIRTY_MASK
);
1065 if (!(pte
& PG_ACCESSED_MASK
) || is_dirty
) {
1066 pte
|= PG_ACCESSED_MASK
;
1068 pte
|= PG_DIRTY_MASK
;
1069 stl_phys_notdirty(pte_addr
, pte
);
1072 virt_addr
= addr
& ~0xfff;
1073 pte
= pte
& (PHYS_ADDR_MASK
| 0xfff);
1078 /* page directory entry */
1079 pde_addr
= ((env
->cr
[3] & ~0xfff) + ((addr
>> 20) & 0xffc)) &
1081 pde
= ldl_phys(pde_addr
);
1082 if (!(pde
& PG_PRESENT_MASK
)) {
1086 /* if PSE bit is set, then we use a 4MB page */
1087 if ((pde
& PG_PSE_MASK
) && (env
->cr
[4] & CR4_PSE_MASK
)) {
1088 page_size
= 4096 * 1024;
1090 if (!(pde
& PG_USER_MASK
))
1091 goto do_fault_protect
;
1092 if (is_write
&& !(pde
& PG_RW_MASK
))
1093 goto do_fault_protect
;
1095 if ((env
->cr
[0] & CR0_WP_MASK
) &&
1096 is_write
&& !(pde
& PG_RW_MASK
))
1097 goto do_fault_protect
;
1099 is_dirty
= is_write
&& !(pde
& PG_DIRTY_MASK
);
1100 if (!(pde
& PG_ACCESSED_MASK
) || is_dirty
) {
1101 pde
|= PG_ACCESSED_MASK
;
1103 pde
|= PG_DIRTY_MASK
;
1104 stl_phys_notdirty(pde_addr
, pde
);
1107 pte
= pde
& ~( (page_size
- 1) & ~0xfff); /* align to page_size */
1109 virt_addr
= addr
& ~(page_size
- 1);
1111 if (!(pde
& PG_ACCESSED_MASK
)) {
1112 pde
|= PG_ACCESSED_MASK
;
1113 stl_phys_notdirty(pde_addr
, pde
);
1116 /* page directory entry */
1117 pte_addr
= ((pde
& ~0xfff) + ((addr
>> 10) & 0xffc)) &
1119 pte
= ldl_phys(pte_addr
);
1120 if (!(pte
& PG_PRESENT_MASK
)) {
1124 /* combine pde and pte user and rw protections */
1127 if (!(ptep
& PG_USER_MASK
))
1128 goto do_fault_protect
;
1129 if (is_write
&& !(ptep
& PG_RW_MASK
))
1130 goto do_fault_protect
;
1132 if ((env
->cr
[0] & CR0_WP_MASK
) &&
1133 is_write
&& !(ptep
& PG_RW_MASK
))
1134 goto do_fault_protect
;
1136 is_dirty
= is_write
&& !(pte
& PG_DIRTY_MASK
);
1137 if (!(pte
& PG_ACCESSED_MASK
) || is_dirty
) {
1138 pte
|= PG_ACCESSED_MASK
;
1140 pte
|= PG_DIRTY_MASK
;
1141 stl_phys_notdirty(pte_addr
, pte
);
1144 virt_addr
= addr
& ~0xfff;
1147 /* the page can be put in the TLB */
1149 if (!(ptep
& PG_NX_MASK
))
1151 if (pte
& PG_DIRTY_MASK
) {
1152 /* only set write access if already dirty... otherwise wait
1155 if (ptep
& PG_RW_MASK
)
1158 if (!(env
->cr
[0] & CR0_WP_MASK
) ||
1159 (ptep
& PG_RW_MASK
))
1164 pte
= pte
& env
->a20_mask
;
1166 /* Even if 4MB pages, we map only one 4KB page in the cache to
1167 avoid filling it too fast */
1168 page_offset
= (addr
& TARGET_PAGE_MASK
) & (page_size
- 1);
1169 paddr
= (pte
& TARGET_PAGE_MASK
) + page_offset
;
1170 vaddr
= virt_addr
+ page_offset
;
1172 ret
= tlb_set_page_exec(env
, vaddr
, paddr
, prot
, mmu_idx
, is_softmmu
);
1175 error_code
= PG_ERROR_P_MASK
;
1177 error_code
|= (is_write
<< PG_ERROR_W_BIT
);
1179 error_code
|= PG_ERROR_U_MASK
;
1180 if (is_write1
== 2 &&
1181 (env
->efer
& MSR_EFER_NXE
) &&
1182 (env
->cr
[4] & CR4_PAE_MASK
))
1183 error_code
|= PG_ERROR_I_D_MASK
;
1184 if (env
->intercept_exceptions
& (1 << EXCP0E_PAGE
)) {
1185 /* cr2 is not modified in case of exceptions */
1186 stq_phys(env
->vm_vmcb
+ offsetof(struct vmcb
, control
.exit_info_2
),
1191 env
->error_code
= error_code
;
1192 env
->exception_index
= EXCP0E_PAGE
;
1196 target_phys_addr_t
cpu_get_phys_page_debug(CPUState
*env
, target_ulong addr
)
1198 target_ulong pde_addr
, pte_addr
;
1200 target_phys_addr_t paddr
;
1201 uint32_t page_offset
;
1204 if (env
->cr
[4] & CR4_PAE_MASK
) {
1205 target_ulong pdpe_addr
;
1208 #ifdef TARGET_X86_64
1209 if (env
->hflags
& HF_LMA_MASK
) {
1210 uint64_t pml4e_addr
, pml4e
;
1213 /* test virtual address sign extension */
1214 sext
= (int64_t)addr
>> 47;
1215 if (sext
!= 0 && sext
!= -1)
1218 pml4e_addr
= ((env
->cr
[3] & ~0xfff) + (((addr
>> 39) & 0x1ff) << 3)) &
1220 pml4e
= ldq_phys(pml4e_addr
);
1221 if (!(pml4e
& PG_PRESENT_MASK
))
1224 pdpe_addr
= ((pml4e
& ~0xfff) + (((addr
>> 30) & 0x1ff) << 3)) &
1226 pdpe
= ldq_phys(pdpe_addr
);
1227 if (!(pdpe
& PG_PRESENT_MASK
))
1232 pdpe_addr
= ((env
->cr
[3] & ~0x1f) + ((addr
>> 27) & 0x18)) &
1234 pdpe
= ldq_phys(pdpe_addr
);
1235 if (!(pdpe
& PG_PRESENT_MASK
))
1239 pde_addr
= ((pdpe
& ~0xfff) + (((addr
>> 21) & 0x1ff) << 3)) &
1241 pde
= ldq_phys(pde_addr
);
1242 if (!(pde
& PG_PRESENT_MASK
)) {
1245 if (pde
& PG_PSE_MASK
) {
1247 page_size
= 2048 * 1024;
1248 pte
= pde
& ~( (page_size
- 1) & ~0xfff); /* align to page_size */
1251 pte_addr
= ((pde
& ~0xfff) + (((addr
>> 12) & 0x1ff) << 3)) &
1254 pte
= ldq_phys(pte_addr
);
1256 if (!(pte
& PG_PRESENT_MASK
))
1261 if (!(env
->cr
[0] & CR0_PG_MASK
)) {
1265 /* page directory entry */
1266 pde_addr
= ((env
->cr
[3] & ~0xfff) + ((addr
>> 20) & 0xffc)) & env
->a20_mask
;
1267 pde
= ldl_phys(pde_addr
);
1268 if (!(pde
& PG_PRESENT_MASK
))
1270 if ((pde
& PG_PSE_MASK
) && (env
->cr
[4] & CR4_PSE_MASK
)) {
1271 pte
= pde
& ~0x003ff000; /* align to 4MB */
1272 page_size
= 4096 * 1024;
1274 /* page directory entry */
1275 pte_addr
= ((pde
& ~0xfff) + ((addr
>> 10) & 0xffc)) & env
->a20_mask
;
1276 pte
= ldl_phys(pte_addr
);
1277 if (!(pte
& PG_PRESENT_MASK
))
1282 pte
= pte
& env
->a20_mask
;
1285 page_offset
= (addr
& TARGET_PAGE_MASK
) & (page_size
- 1);
1286 paddr
= (pte
& TARGET_PAGE_MASK
) + page_offset
;
1289 #endif /* !CONFIG_USER_ONLY */
1291 void cpu_x86_cpuid(CPUX86State
*env
, uint32_t index
,
1292 uint32_t *eax
, uint32_t *ebx
,
1293 uint32_t *ecx
, uint32_t *edx
)
1295 /* test if maximum index reached */
1296 if (index
& 0x80000000) {
1297 if (index
> env
->cpuid_xlevel
)
1298 index
= env
->cpuid_level
;
1300 if (index
> env
->cpuid_level
)
1301 index
= env
->cpuid_level
;
1306 *eax
= env
->cpuid_level
;
1307 *ebx
= env
->cpuid_vendor1
;
1308 *edx
= env
->cpuid_vendor2
;
1309 *ecx
= env
->cpuid_vendor3
;
1312 *eax
= env
->cpuid_version
;
1313 *ebx
= (env
->cpuid_apic_id
<< 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1314 *ecx
= env
->cpuid_ext_features
;
1315 *edx
= env
->cpuid_features
;
1318 /* cache info: needed for Pentium Pro compatibility */
1325 /* cache info: needed for Core compatibility */
1327 case 0: /* L1 dcache info */
1333 case 1: /* L1 icache info */
1339 case 2: /* L2 cache info */
1345 default: /* end of info */
1355 /* mwait info: needed for Core compatibility */
1356 *eax
= 0; /* Smallest monitor-line size in bytes */
1357 *ebx
= 0; /* Largest monitor-line size in bytes */
1358 *ecx
= CPUID_MWAIT_EMX
| CPUID_MWAIT_IBE
;
1362 /* Thermal and Power Leaf */
1369 /* Direct Cache Access Information Leaf */
1370 *eax
= 0; /* Bits 0-31 in DCA_CAP MSR */
1376 /* Architectural Performance Monitoring Leaf */
1383 *eax
= env
->cpuid_xlevel
;
1384 *ebx
= env
->cpuid_vendor1
;
1385 *edx
= env
->cpuid_vendor2
;
1386 *ecx
= env
->cpuid_vendor3
;
1389 *eax
= env
->cpuid_features
;
1391 *ecx
= env
->cpuid_ext3_features
;
1392 *edx
= env
->cpuid_ext2_features
;
1397 *eax
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 0];
1398 *ebx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 1];
1399 *ecx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 2];
1400 *edx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 3];
1403 /* cache info (L1 cache) */
1410 /* cache info (L2 cache) */
1417 /* virtual & phys address size in low 2 bytes. */
1418 /* XXX: This value must match the one used in the MMU code. */
1419 if (env
->cpuid_ext2_features
& CPUID_EXT2_LM
) {
1420 /* 64 bit processor */
1421 #if defined(USE_KQEMU)
1422 *eax
= 0x00003020; /* 48 bits virtual, 32 bits physical */
1424 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1425 *eax
= 0x00003028; /* 48 bits virtual, 40 bits physical */
1428 #if defined(USE_KQEMU)
1429 *eax
= 0x00000020; /* 32 bits physical */
1431 if (env
->cpuid_features
& CPUID_PSE36
)
1432 *eax
= 0x00000024; /* 36 bits physical */
1434 *eax
= 0x00000020; /* 32 bits physical */
1442 *eax
= 0x00000001; /* SVM Revision */
1443 *ebx
= 0x00000010; /* nr of ASIDs */
1445 *edx
= 0; /* optional features */
1448 /* reserved values: zero */