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"
32 #include "qemu-option.h"
33 #include "qemu-config.h"
35 /* feature flags taken from "Intel Processor Identification and the CPUID
36 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
37 * between feature naming conventions, aliases may be added.
39 static const char *feature_name[] = {
40 "fpu", "vme", "de", "pse",
41 "tsc", "msr", "pae", "mce",
42 "cx8", "apic", NULL, "sep",
43 "mtrr", "pge", "mca", "cmov",
44 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */,
45 NULL, "ds" /* Intel dts */, "acpi", "mmx",
46 "fxsr", "sse", "sse2", "ss",
47 "ht" /* Intel htt */, "tm", "ia64", "pbe",
49 static const char *ext_feature_name[] = {
50 "pni|sse3" /* Intel,AMD sse3 */, NULL, NULL, "monitor",
51 "ds_cpl", "vmx", NULL /* Linux smx */, "est",
52 "tm2", "ssse3", "cid", NULL,
53 NULL, "cx16", "xtpr", NULL,
54 NULL, NULL, "dca", "sse4.1|sse4_1",
55 "sse4.2|sse4_2", "x2apic", NULL, "popcnt",
56 NULL, NULL, NULL, NULL,
57 NULL, NULL, NULL, "hypervisor",
59 static const char *ext2_feature_name[] = {
60 "fpu", "vme", "de", "pse",
61 "tsc", "msr", "pae", "mce",
62 "cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall",
63 "mtrr", "pge", "mca", "cmov",
64 "pat", "pse36", NULL, NULL /* Linux mp */,
65 "nx" /* Intel xd */, NULL, "mmxext", "mmx",
66 "fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp",
67 NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow",
69 static const char *ext3_feature_name[] = {
70 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */,
71 "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
72 "3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL,
73 "skinit", "wdt", NULL, NULL,
74 NULL, NULL, NULL, NULL,
75 NULL, NULL, NULL, NULL,
76 NULL, NULL, NULL, NULL,
77 NULL, NULL, NULL, NULL,
80 static const char *kvm_feature_name[] = {
81 "kvmclock", "kvm_nopiodelay", "kvm_mmu", NULL, NULL, NULL, NULL, NULL,
82 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
83 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
84 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
87 /* collects per-function cpuid data
89 typedef struct model_features_t {
93 const char **flag_names;
98 int enforce_cpuid = 0;
100 static void host_cpuid(uint32_t function, uint32_t count, uint32_t *eax,
101 uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
103 #define iswhite(c) ((c) && ((c) <= ' ' || '~' < (c)))
105 /* general substring compare of *[s1..e1) and *[s2..e2). sx is start of
106 * a substring. ex if !NULL points to the first char after a substring,
107 * otherwise the string is assumed to sized by a terminating nul.
108 * Return lexical ordering of *s1:*s2.
110 static int sstrcmp(const char *s1, const char *e1, const char *s2,
114 if (!*s1 || !*s2 || *s1 != *s2)
117 if (s1 == e1 && s2 == e2)
126 /* compare *[s..e) to *altstr. *altstr may be a simple string or multiple
127 * '|' delimited (possibly empty) strings in which case search for a match
128 * within the alternatives proceeds left to right. Return 0 for success,
129 * non-zero otherwise.
131 static int altcmp(const char *s, const char *e, const char *altstr)
135 for (q = p = altstr; ; ) {
136 while (*p && *p != '|')
138 if ((q == p && !*s) || (q != p && !sstrcmp(s, e, q, p)))
147 /* search featureset for flag *[s..e), if found set corresponding bit in
148 * *pval and return success, otherwise return zero
150 static int lookup_feature(uint32_t *pval, const char *s, const char *e,
151 const char **featureset)
156 for (mask = 1, ppc = featureset; mask; mask <<= 1, ++ppc)
157 if (*ppc && !altcmp(s, e, *ppc)) {
161 return (mask ? 1 : 0);
164 static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features,
165 uint32_t *ext_features,
166 uint32_t *ext2_features,
167 uint32_t *ext3_features,
168 uint32_t *kvm_features)
170 if (!lookup_feature(features, flagname, NULL, feature_name) &&
171 !lookup_feature(ext_features, flagname, NULL, ext_feature_name) &&
172 !lookup_feature(ext2_features, flagname, NULL, ext2_feature_name) &&
173 !lookup_feature(ext3_features, flagname, NULL, ext3_feature_name) &&
174 !lookup_feature(kvm_features, flagname, NULL, kvm_feature_name))
175 fprintf(stderr, "CPU feature %s not found\n", flagname);
178 typedef struct x86_def_t {
179 struct x86_def_t *next;
182 uint32_t vendor1, vendor2, vendor3;
186 uint32_t features, ext_features, ext2_features, ext3_features, kvm_features;
193 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
194 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
195 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC)
196 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
197 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
198 CPUID_PSE36 | CPUID_FXSR)
199 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
200 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
201 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
202 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
203 CPUID_PAE | CPUID_SEP | CPUID_APIC)
205 /* maintains list of cpu model definitions
207 static x86_def_t *x86_defs = {NULL};
209 /* built-in cpu model definitions (deprecated)
211 static x86_def_t builtin_x86_defs[] = {
216 .vendor1 = CPUID_VENDOR_AMD_1,
217 .vendor2 = CPUID_VENDOR_AMD_2,
218 .vendor3 = CPUID_VENDOR_AMD_3,
222 .features = PPRO_FEATURES |
223 /* these features are needed for Win64 and aren't fully implemented */
224 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
225 /* this feature is needed for Solaris and isn't fully implemented */
227 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_CX16 | CPUID_EXT_POPCNT,
228 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
229 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
230 .ext3_features = CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM |
231 CPUID_EXT3_ABM | CPUID_EXT3_SSE4A,
232 .xlevel = 0x8000000A,
233 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
238 .vendor1 = CPUID_VENDOR_AMD_1,
239 .vendor2 = CPUID_VENDOR_AMD_2,
240 .vendor3 = CPUID_VENDOR_AMD_3,
244 /* Missing: CPUID_VME, CPUID_HT */
245 .features = PPRO_FEATURES |
246 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
248 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_CX16 |
250 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
251 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
252 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
253 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_MMXEXT |
255 /* Missing: CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
257 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
258 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
259 .ext3_features = CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM |
260 CPUID_EXT3_ABM | CPUID_EXT3_SSE4A,
261 .xlevel = 0x8000001A,
262 .model_id = "AMD Phenom(tm) 9550 Quad-Core Processor"
270 /* The original CPU also implements these features:
271 CPUID_VME, CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
272 CPUID_TM, CPUID_PBE */
273 .features = PPRO_FEATURES |
274 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
276 /* The original CPU also implements these ext features:
277 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
278 CPUID_EXT_TM2, CPUID_EXT_CX16, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
279 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3,
280 .ext2_features = CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
281 .ext3_features = CPUID_EXT3_LAHF_LM,
282 .xlevel = 0x80000008,
283 .model_id = "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
288 .vendor1 = CPUID_VENDOR_INTEL_1,
289 .vendor2 = CPUID_VENDOR_INTEL_2,
290 .vendor3 = CPUID_VENDOR_INTEL_3,
294 /* Missing: CPUID_VME, CPUID_HT */
295 .features = PPRO_FEATURES |
296 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
298 /* Missing: CPUID_EXT_POPCNT, CPUID_EXT_MONITOR */
299 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_CX16,
300 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
301 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
302 CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
303 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
304 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
305 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
306 CPUID_EXT3_OSVW, CPUID_EXT3_IBS, CPUID_EXT3_SVM */
308 .xlevel = 0x80000008,
309 .model_id = "Common KVM processor"
318 .features = PPRO_FEATURES,
319 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_POPCNT,
321 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
329 /* The original CPU also implements these features:
330 CPUID_DTS, CPUID_ACPI, CPUID_SS, CPUID_HT,
331 CPUID_TM, CPUID_PBE */
332 .features = PPRO_FEATURES | CPUID_VME |
333 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA,
334 /* The original CPU also implements these ext features:
335 CPUID_EXT_VMX, CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_XTPR,
337 .ext_features = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR,
338 .ext2_features = CPUID_EXT2_NX,
339 .xlevel = 0x80000008,
340 .model_id = "Genuine Intel(R) CPU T2600 @ 2.16GHz",
348 .features = I486_FEATURES,
357 .features = PENTIUM_FEATURES,
366 .features = PENTIUM2_FEATURES,
375 .features = PENTIUM3_FEATURES,
381 .vendor1 = CPUID_VENDOR_AMD_1,
382 .vendor2 = CPUID_VENDOR_AMD_2,
383 .vendor3 = CPUID_VENDOR_AMD_3,
387 .features = PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA,
388 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
389 .xlevel = 0x80000008,
390 /* XXX: put another string ? */
391 .model_id = "QEMU Virtual CPU version " QEMU_VERSION,
395 /* original is on level 10 */
400 .features = PPRO_FEATURES |
401 CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_VME,
402 /* Missing: CPUID_DTS | CPUID_ACPI | CPUID_SS |
403 * CPUID_HT | CPUID_TM | CPUID_PBE */
404 /* Some CPUs got no CPUID_SEP */
405 .ext_features = CPUID_EXT_MONITOR |
406 CPUID_EXT_SSE3 /* PNI */ | CPUID_EXT_SSSE3,
407 /* Missing: CPUID_EXT_DSCPL | CPUID_EXT_EST |
408 * CPUID_EXT_TM2 | CPUID_EXT_XTPR */
409 .ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_NX,
410 /* Missing: .ext3_features = CPUID_EXT3_LAHF_LM */
411 .xlevel = 0x8000000A,
412 .model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
416 static int cpu_x86_fill_model_id(char *str)
418 uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
421 for (i = 0; i < 3; i++) {
422 host_cpuid(0x80000002 + i, 0, &eax, &ebx, &ecx, &edx);
423 memcpy(str + i * 16 + 0, &eax, 4);
424 memcpy(str + i * 16 + 4, &ebx, 4);
425 memcpy(str + i * 16 + 8, &ecx, 4);
426 memcpy(str + i * 16 + 12, &edx, 4);
431 static int cpu_x86_fill_host(x86_def_t *x86_cpu_def)
433 uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
435 x86_cpu_def->name = "host";
436 host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx);
437 x86_cpu_def->level = eax;
438 x86_cpu_def->vendor1 = ebx;
439 x86_cpu_def->vendor2 = edx;
440 x86_cpu_def->vendor3 = ecx;
442 host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx);
443 x86_cpu_def->family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
444 x86_cpu_def->model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12);
445 x86_cpu_def->stepping = eax & 0x0F;
446 x86_cpu_def->ext_features = ecx;
447 x86_cpu_def->features = edx;
449 host_cpuid(0x80000000, 0, &eax, &ebx, &ecx, &edx);
450 x86_cpu_def->xlevel = eax;
452 host_cpuid(0x80000001, 0, &eax, &ebx, &ecx, &edx);
453 x86_cpu_def->ext2_features = edx;
454 x86_cpu_def->ext3_features = ecx;
455 cpu_x86_fill_model_id(x86_cpu_def->model_id);
456 x86_cpu_def->vendor_override = 0;
461 static int unavailable_host_feature(struct model_features_t *f, uint32_t mask)
465 for (i = 0; i < 32; ++i)
467 fprintf(stderr, "warning: host cpuid %04x_%04x lacks requested"
468 " flag '%s' [0x%08x]\n",
469 f->cpuid >> 16, f->cpuid & 0xffff,
470 f->flag_names[i] ? f->flag_names[i] : "[reserved]", mask);
476 /* best effort attempt to inform user requested cpu flags aren't making
477 * their way to the guest. Note: ft[].check_feat ideally should be
478 * specified via a guest_def field to suppress report of extraneous flags.
480 static int check_features_against_host(x86_def_t *guest_def)
485 struct model_features_t ft[] = {
486 {&guest_def->features, &host_def.features,
487 ~0, feature_name, 0x00000000},
488 {&guest_def->ext_features, &host_def.ext_features,
489 ~CPUID_EXT_HYPERVISOR, ext_feature_name, 0x00000001},
490 {&guest_def->ext2_features, &host_def.ext2_features,
491 ~PPRO_FEATURES, ext2_feature_name, 0x80000000},
492 {&guest_def->ext3_features, &host_def.ext3_features,
493 ~CPUID_EXT3_SVM, ext3_feature_name, 0x80000001}};
495 cpu_x86_fill_host(&host_def);
496 for (rv = 0, i = 0; i < sizeof (ft) / sizeof (ft[0]); ++i)
497 for (mask = 1; mask; mask <<= 1)
498 if (ft[i].check_feat & mask && *ft[i].guest_feat & mask &&
499 !(*ft[i].host_feat & mask)) {
500 unavailable_host_feature(&ft[i], mask);
506 static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
511 char *s = strdup(cpu_model);
512 char *featurestr, *name = strtok(s, ",");
513 uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0, plus_kvm_features = 0;
514 uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0, minus_kvm_features = 0;
517 for (def = x86_defs; def; def = def->next)
518 if (!strcmp(name, def->name))
520 if (kvm_enabled() && strcmp(name, "host") == 0) {
521 cpu_x86_fill_host(x86_cpu_def);
525 memcpy(x86_cpu_def, def, sizeof(*def));
528 plus_kvm_features = ~0; /* not supported bits will be filtered out later */
530 add_flagname_to_bitmaps("hypervisor", &plus_features,
531 &plus_ext_features, &plus_ext2_features, &plus_ext3_features,
534 featurestr = strtok(NULL, ",");
538 if (featurestr[0] == '+') {
539 add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features, &plus_kvm_features);
540 } else if (featurestr[0] == '-') {
541 add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features, &minus_kvm_features);
542 } else if ((val = strchr(featurestr, '='))) {
544 if (!strcmp(featurestr, "family")) {
546 numvalue = strtoul(val, &err, 0);
548 fprintf(stderr, "bad numerical value %s\n", val);
551 x86_cpu_def->family = numvalue;
552 } else if (!strcmp(featurestr, "model")) {
554 numvalue = strtoul(val, &err, 0);
555 if (!*val || *err || numvalue > 0xff) {
556 fprintf(stderr, "bad numerical value %s\n", val);
559 x86_cpu_def->model = numvalue;
560 } else if (!strcmp(featurestr, "stepping")) {
562 numvalue = strtoul(val, &err, 0);
563 if (!*val || *err || numvalue > 0xf) {
564 fprintf(stderr, "bad numerical value %s\n", val);
567 x86_cpu_def->stepping = numvalue ;
568 } else if (!strcmp(featurestr, "level")) {
570 numvalue = strtoul(val, &err, 0);
572 fprintf(stderr, "bad numerical value %s\n", val);
575 x86_cpu_def->level = numvalue;
576 } else if (!strcmp(featurestr, "xlevel")) {
578 numvalue = strtoul(val, &err, 0);
580 fprintf(stderr, "bad numerical value %s\n", val);
583 if (numvalue < 0x80000000) {
584 numvalue += 0x80000000;
586 x86_cpu_def->xlevel = numvalue;
587 } else if (!strcmp(featurestr, "vendor")) {
588 if (strlen(val) != 12) {
589 fprintf(stderr, "vendor string must be 12 chars long\n");
592 x86_cpu_def->vendor1 = 0;
593 x86_cpu_def->vendor2 = 0;
594 x86_cpu_def->vendor3 = 0;
595 for(i = 0; i < 4; i++) {
596 x86_cpu_def->vendor1 |= ((uint8_t)val[i ]) << (8 * i);
597 x86_cpu_def->vendor2 |= ((uint8_t)val[i + 4]) << (8 * i);
598 x86_cpu_def->vendor3 |= ((uint8_t)val[i + 8]) << (8 * i);
600 x86_cpu_def->vendor_override = 1;
601 } else if (!strcmp(featurestr, "model_id")) {
602 pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
605 fprintf(stderr, "unrecognized feature %s\n", featurestr);
608 } else if (!strcmp(featurestr, "check")) {
610 } else if (!strcmp(featurestr, "enforce")) {
611 check_cpuid = enforce_cpuid = 1;
613 fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
616 featurestr = strtok(NULL, ",");
618 x86_cpu_def->features |= plus_features;
619 x86_cpu_def->ext_features |= plus_ext_features;
620 x86_cpu_def->ext2_features |= plus_ext2_features;
621 x86_cpu_def->ext3_features |= plus_ext3_features;
622 x86_cpu_def->kvm_features |= plus_kvm_features;
623 x86_cpu_def->features &= ~minus_features;
624 x86_cpu_def->ext_features &= ~minus_ext_features;
625 x86_cpu_def->ext2_features &= ~minus_ext2_features;
626 x86_cpu_def->ext3_features &= ~minus_ext3_features;
627 x86_cpu_def->kvm_features &= ~minus_kvm_features;
629 if (check_features_against_host(x86_cpu_def) && enforce_cpuid)
640 /* generate a composite string into buf of all cpuid names in featureset
641 * selected by fbits. indicate truncation at bufsize in the event of overflow.
642 * if flags, suppress names undefined in featureset.
644 static void listflags(char *buf, int bufsize, uint32_t fbits,
645 const char **featureset, uint32_t flags)
647 const char **p = &featureset[31];
651 b = 4 <= bufsize ? buf + (bufsize -= 3) - 1 : NULL;
653 for (q = buf, bit = 31; fbits && bufsize; --p, fbits &= ~(1 << bit), --bit)
654 if (fbits & 1 << bit && (*p || !flags)) {
656 nc = snprintf(q, bufsize, "%s%s", q == buf ? "" : " ", *p);
658 nc = snprintf(q, bufsize, "%s[%d]", q == buf ? "" : " ", bit);
661 memcpy(b, "...", sizeof("..."));
670 /* generate CPU information:
671 * -? list model names
672 * -?model list model names/IDs
673 * -?dump output all model (x86_def_t) data
674 * -?cpuid list all recognized cpuid flag names
676 void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
679 unsigned char model = !strcmp("?model", optarg);
680 unsigned char dump = !strcmp("?dump", optarg);
681 unsigned char cpuid = !strcmp("?cpuid", optarg);
686 (*cpu_fprintf)(f, "Recognized CPUID flags:\n");
687 listflags(buf, sizeof (buf), (uint32_t)~0, feature_name, 1);
688 (*cpu_fprintf)(f, " f_edx: %s\n", buf);
689 listflags(buf, sizeof (buf), (uint32_t)~0, ext_feature_name, 1);
690 (*cpu_fprintf)(f, " f_ecx: %s\n", buf);
691 listflags(buf, sizeof (buf), (uint32_t)~0, ext2_feature_name, 1);
692 (*cpu_fprintf)(f, " extf_edx: %s\n", buf);
693 listflags(buf, sizeof (buf), (uint32_t)~0, ext3_feature_name, 1);
694 (*cpu_fprintf)(f, " extf_ecx: %s\n", buf);
697 for (def = x86_defs; def; def = def->next) {
698 snprintf(buf, sizeof (buf), def->flags ? "[%s]": "%s", def->name);
700 (*cpu_fprintf)(f, "x86 %16s %-48s\n", buf, def->model_id);
702 (*cpu_fprintf)(f, "x86 %16s\n", buf);
705 memcpy(buf, &def->vendor1, sizeof (def->vendor1));
706 memcpy(buf + 4, &def->vendor2, sizeof (def->vendor2));
707 memcpy(buf + 8, &def->vendor3, sizeof (def->vendor3));
710 " family %d model %d stepping %d level %d xlevel 0x%x"
712 def->family, def->model, def->stepping, def->level,
714 listflags(buf, sizeof (buf), def->features, feature_name, 0);
715 (*cpu_fprintf)(f, " feature_edx %08x (%s)\n", def->features,
717 listflags(buf, sizeof (buf), def->ext_features, ext_feature_name,
719 (*cpu_fprintf)(f, " feature_ecx %08x (%s)\n", def->ext_features,
721 listflags(buf, sizeof (buf), def->ext2_features, ext2_feature_name,
723 (*cpu_fprintf)(f, " extfeature_edx %08x (%s)\n",
724 def->ext2_features, buf);
725 listflags(buf, sizeof (buf), def->ext3_features, ext3_feature_name,
727 (*cpu_fprintf)(f, " extfeature_ecx %08x (%s)\n",
728 def->ext3_features, buf);
729 (*cpu_fprintf)(f, "\n");
734 static int cpu_x86_register (CPUX86State *env, const char *cpu_model)
736 x86_def_t def1, *def = &def1;
738 if (cpu_x86_find_by_name(def, cpu_model) < 0)
741 env->cpuid_vendor1 = def->vendor1;
742 env->cpuid_vendor2 = def->vendor2;
743 env->cpuid_vendor3 = def->vendor3;
745 env->cpuid_vendor1 = CPUID_VENDOR_INTEL_1;
746 env->cpuid_vendor2 = CPUID_VENDOR_INTEL_2;
747 env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
749 env->cpuid_vendor_override = def->vendor_override;
750 env->cpuid_level = def->level;
751 if (def->family > 0x0f)
752 env->cpuid_version = 0xf00 | ((def->family - 0x0f) << 20);
754 env->cpuid_version = def->family << 8;
755 env->cpuid_version |= ((def->model & 0xf) << 4) | ((def->model >> 4) << 16);
756 env->cpuid_version |= def->stepping;
757 env->cpuid_features = def->features;
758 env->pat = 0x0007040600070406ULL;
759 env->cpuid_ext_features = def->ext_features;
760 env->cpuid_ext2_features = def->ext2_features;
761 env->cpuid_xlevel = def->xlevel;
762 env->cpuid_kvm_features = def->kvm_features;
764 const char *model_id = def->model_id;
768 len = strlen(model_id);
769 for(i = 0; i < 48; i++) {
773 c = (uint8_t)model_id[i];
774 env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
780 #if !defined(CONFIG_USER_ONLY)
781 /* copy vendor id string to 32 bit register, nul pad as needed
783 static void cpyid(const char *s, uint32_t *id)
785 char *d = (char *)id;
788 for (i = sizeof (*id); i--; )
789 *d++ = *s ? *s++ : '\0';
792 /* interpret radix and convert from string to arbitrary scalar,
793 * otherwise flag failure
795 #define setscalar(pval, str, perr) \
800 ul = strtoul(str, &pend, 0); \
801 *str && !*pend ? (*pval = ul) : (*perr = 1); \
804 /* map cpuid options to feature bits, otherwise return failure
805 * (option tags in *str are delimited by whitespace)
807 static void setfeatures(uint32_t *pval, const char *str,
808 const char **featureset, int *perr)
812 for (q = p = str; *p || *q; q = p) {
815 while (*p && !iswhite(*p))
819 if (!lookup_feature(pval, q, p, featureset)) {
820 fprintf(stderr, "error: feature \"%.*s\" not available in set\n",
828 /* map config file options to x86_def_t form
830 static int cpudef_setfield(const char *name, const char *str, void *opaque)
832 x86_def_t *def = opaque;
835 if (!strcmp(name, "name")) {
836 def->name = strdup(str);
837 } else if (!strcmp(name, "model_id")) {
838 strncpy(def->model_id, str, sizeof (def->model_id));
839 } else if (!strcmp(name, "level")) {
840 setscalar(&def->level, str, &err)
841 } else if (!strcmp(name, "vendor")) {
842 cpyid(&str[0], &def->vendor1);
843 cpyid(&str[4], &def->vendor2);
844 cpyid(&str[8], &def->vendor3);
845 } else if (!strcmp(name, "family")) {
846 setscalar(&def->family, str, &err)
847 } else if (!strcmp(name, "model")) {
848 setscalar(&def->model, str, &err)
849 } else if (!strcmp(name, "stepping")) {
850 setscalar(&def->stepping, str, &err)
851 } else if (!strcmp(name, "feature_edx")) {
852 setfeatures(&def->features, str, feature_name, &err);
853 } else if (!strcmp(name, "feature_ecx")) {
854 setfeatures(&def->ext_features, str, ext_feature_name, &err);
855 } else if (!strcmp(name, "extfeature_edx")) {
856 setfeatures(&def->ext2_features, str, ext2_feature_name, &err);
857 } else if (!strcmp(name, "extfeature_ecx")) {
858 setfeatures(&def->ext3_features, str, ext3_feature_name, &err);
859 } else if (!strcmp(name, "xlevel")) {
860 setscalar(&def->xlevel, str, &err)
862 fprintf(stderr, "error: unknown option [%s = %s]\n", name, str);
866 fprintf(stderr, "error: bad option value [%s = %s]\n", name, str);
872 /* register config file entry as x86_def_t
874 static int cpudef_register(QemuOpts *opts, void *opaque)
876 x86_def_t *def = qemu_mallocz(sizeof (x86_def_t));
878 qemu_opt_foreach(opts, cpudef_setfield, def, 1);
879 def->next = x86_defs;
883 #endif /* !CONFIG_USER_ONLY */
885 /* register "cpudef" models defined in configuration file. Here we first
886 * preload any built-in definitions
888 void x86_cpudef_setup(void)
892 for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); ++i) {
893 builtin_x86_defs[i].next = x86_defs;
894 builtin_x86_defs[i].flags = 1;
895 x86_defs = &builtin_x86_defs[i];
897 #if !defined(CONFIG_USER_ONLY)
898 qemu_opts_foreach(&qemu_cpudef_opts, cpudef_register, NULL, 0);
902 /* NOTE: must be called outside the CPU execute loop */
903 void cpu_reset(CPUX86State *env)
907 if (qemu_loglevel_mask(CPU_LOG_RESET)) {
908 qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
909 log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP);
912 memset(env, 0, offsetof(CPUX86State, breakpoints));
916 env->old_exception = -1;
918 /* init to reset state */
920 #ifdef CONFIG_SOFTMMU
921 env->hflags |= HF_SOFTMMU_MASK;
923 env->hflags2 |= HF2_GIF_MASK;
925 cpu_x86_update_cr0(env, 0x60000010);
926 env->a20_mask = ~0x0;
927 env->smbase = 0x30000;
929 env->idt.limit = 0xffff;
930 env->gdt.limit = 0xffff;
931 env->ldt.limit = 0xffff;
932 env->ldt.flags = DESC_P_MASK | (2 << DESC_TYPE_SHIFT);
933 env->tr.limit = 0xffff;
934 env->tr.flags = DESC_P_MASK | (11 << DESC_TYPE_SHIFT);
936 cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff,
937 DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK |
938 DESC_R_MASK | DESC_A_MASK);
939 cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff,
940 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
942 cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff,
943 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
945 cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff,
946 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
948 cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff,
949 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
951 cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff,
952 DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
956 env->regs[R_EDX] = env->cpuid_version;
961 for(i = 0;i < 8; i++)
967 memset(env->dr, 0, sizeof(env->dr));
968 env->dr[6] = DR6_FIXED_1;
969 env->dr[7] = DR7_FIXED_1;
970 cpu_breakpoint_remove_all(env, BP_CPU);
971 cpu_watchpoint_remove_all(env, BP_CPU);
976 void cpu_x86_close(CPUX86State *env)
981 /***********************************************************/
984 static const char *cc_op_str[] = {
1040 cpu_x86_dump_seg_cache(CPUState *env, FILE *f,
1041 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
1042 const char *name, struct SegmentCache *sc)
1044 #ifdef TARGET_X86_64
1045 if (env->hflags & HF_CS64_MASK) {
1046 cpu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
1047 sc->selector, sc->base, sc->limit, sc->flags);
1051 cpu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
1052 (uint32_t)sc->base, sc->limit, sc->flags);
1055 if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
1058 cpu_fprintf(f, " DPL=%d ", (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
1059 if (sc->flags & DESC_S_MASK) {
1060 if (sc->flags & DESC_CS_MASK) {
1061 cpu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
1062 ((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
1063 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
1064 (sc->flags & DESC_R_MASK) ? 'R' : '-');
1066 cpu_fprintf(f, (sc->flags & DESC_B_MASK) ? "DS " : "DS16");
1067 cpu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
1068 (sc->flags & DESC_W_MASK) ? 'W' : '-');
1070 cpu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
1072 static const char *sys_type_name[2][16] = {
1074 "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
1075 "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
1076 "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
1077 "CallGate32", "Reserved", "IntGate32", "TrapGate32"
1080 "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
1081 "Reserved", "Reserved", "Reserved", "Reserved",
1082 "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
1083 "Reserved", "IntGate64", "TrapGate64"
1086 cpu_fprintf(f, sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
1087 [(sc->flags & DESC_TYPE_MASK)
1088 >> DESC_TYPE_SHIFT]);
1091 cpu_fprintf(f, "\n");
1094 void cpu_dump_state(CPUState *env, FILE *f,
1095 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
1099 char cc_op_name[32];
1100 static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
1102 cpu_synchronize_state(env);
1104 eflags = env->eflags;
1105 #ifdef TARGET_X86_64
1106 if (env->hflags & HF_CS64_MASK) {
1108 "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
1109 "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
1110 "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
1111 "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
1112 "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
1130 eflags & DF_MASK ? 'D' : '-',
1131 eflags & CC_O ? 'O' : '-',
1132 eflags & CC_S ? 'S' : '-',
1133 eflags & CC_Z ? 'Z' : '-',
1134 eflags & CC_A ? 'A' : '-',
1135 eflags & CC_P ? 'P' : '-',
1136 eflags & CC_C ? 'C' : '-',
1137 env->hflags & HF_CPL_MASK,
1138 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
1139 (env->a20_mask >> 20) & 1,
1140 (env->hflags >> HF_SMM_SHIFT) & 1,
1145 cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
1146 "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
1147 "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
1148 (uint32_t)env->regs[R_EAX],
1149 (uint32_t)env->regs[R_EBX],
1150 (uint32_t)env->regs[R_ECX],
1151 (uint32_t)env->regs[R_EDX],
1152 (uint32_t)env->regs[R_ESI],
1153 (uint32_t)env->regs[R_EDI],
1154 (uint32_t)env->regs[R_EBP],
1155 (uint32_t)env->regs[R_ESP],
1156 (uint32_t)env->eip, eflags,
1157 eflags & DF_MASK ? 'D' : '-',
1158 eflags & CC_O ? 'O' : '-',
1159 eflags & CC_S ? 'S' : '-',
1160 eflags & CC_Z ? 'Z' : '-',
1161 eflags & CC_A ? 'A' : '-',
1162 eflags & CC_P ? 'P' : '-',
1163 eflags & CC_C ? 'C' : '-',
1164 env->hflags & HF_CPL_MASK,
1165 (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
1166 (env->a20_mask >> 20) & 1,
1167 (env->hflags >> HF_SMM_SHIFT) & 1,
1171 for(i = 0; i < 6; i++) {
1172 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, seg_name[i],
1175 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "LDT", &env->ldt);
1176 cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "TR", &env->tr);
1178 #ifdef TARGET_X86_64
1179 if (env->hflags & HF_LMA_MASK) {
1180 cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
1181 env->gdt.base, env->gdt.limit);
1182 cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
1183 env->idt.base, env->idt.limit);
1184 cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
1185 (uint32_t)env->cr[0],
1188 (uint32_t)env->cr[4]);
1189 for(i = 0; i < 4; i++)
1190 cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
1191 cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
1192 env->dr[6], env->dr[7]);
1196 cpu_fprintf(f, "GDT= %08x %08x\n",
1197 (uint32_t)env->gdt.base, env->gdt.limit);
1198 cpu_fprintf(f, "IDT= %08x %08x\n",
1199 (uint32_t)env->idt.base, env->idt.limit);
1200 cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
1201 (uint32_t)env->cr[0],
1202 (uint32_t)env->cr[2],
1203 (uint32_t)env->cr[3],
1204 (uint32_t)env->cr[4]);
1205 for(i = 0; i < 4; i++)
1206 cpu_fprintf(f, "DR%d=%08x ", i, env->dr[i]);
1207 cpu_fprintf(f, "\nDR6=%08x DR7=%08x\n", env->dr[6], env->dr[7]);
1209 if (flags & X86_DUMP_CCOP) {
1210 if ((unsigned)env->cc_op < CC_OP_NB)
1211 snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
1213 snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
1214 #ifdef TARGET_X86_64
1215 if (env->hflags & HF_CS64_MASK) {
1216 cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
1217 env->cc_src, env->cc_dst,
1222 cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
1223 (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
1227 if (flags & X86_DUMP_FPU) {
1230 for(i = 0; i < 8; i++) {
1231 fptag |= ((!env->fptags[i]) << i);
1233 cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
1235 (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
1240 #if defined(USE_X86LDOUBLE)
1248 tmp.d = env->fpregs[i].d;
1249 cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
1250 i, tmp.l.lower, tmp.l.upper);
1252 cpu_fprintf(f, "FPR%d=%016" PRIx64,
1253 i, env->fpregs[i].mmx.q);
1256 cpu_fprintf(f, "\n");
1258 cpu_fprintf(f, " ");
1260 if (env->hflags & HF_CS64_MASK)
1265 cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
1267 env->xmm_regs[i].XMM_L(3),
1268 env->xmm_regs[i].XMM_L(2),
1269 env->xmm_regs[i].XMM_L(1),
1270 env->xmm_regs[i].XMM_L(0));
1272 cpu_fprintf(f, "\n");
1274 cpu_fprintf(f, " ");
1279 /***********************************************************/
1281 /* XXX: add PGE support */
1283 void cpu_x86_set_a20(CPUX86State *env, int a20_state)
1285 a20_state = (a20_state != 0);
1286 if (a20_state != ((env->a20_mask >> 20) & 1)) {
1287 #if defined(DEBUG_MMU)
1288 printf("A20 update: a20=%d\n", a20_state);
1290 /* if the cpu is currently executing code, we must unlink it and
1291 all the potentially executing TB */
1292 cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
1294 /* when a20 is changed, all the MMU mappings are invalid, so
1295 we must flush everything */
1297 env->a20_mask = ~(1 << 20) | (a20_state << 20);
1301 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
1305 #if defined(DEBUG_MMU)
1306 printf("CR0 update: CR0=0x%08x\n", new_cr0);
1308 if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
1309 (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
1313 #ifdef TARGET_X86_64
1314 if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
1315 (env->efer & MSR_EFER_LME)) {
1316 /* enter in long mode */
1317 /* XXX: generate an exception */
1318 if (!(env->cr[4] & CR4_PAE_MASK))
1320 env->efer |= MSR_EFER_LMA;
1321 env->hflags |= HF_LMA_MASK;
1322 } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
1323 (env->efer & MSR_EFER_LMA)) {
1324 /* exit long mode */
1325 env->efer &= ~MSR_EFER_LMA;
1326 env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
1327 env->eip &= 0xffffffff;
1330 env->cr[0] = new_cr0 | CR0_ET_MASK;
1332 /* update PE flag in hidden flags */
1333 pe_state = (env->cr[0] & CR0_PE_MASK);
1334 env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
1335 /* ensure that ADDSEG is always set in real mode */
1336 env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
1337 /* update FPU flags */
1338 env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
1339 ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
1342 /* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
1344 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
1346 env->cr[3] = new_cr3;
1347 if (env->cr[0] & CR0_PG_MASK) {
1348 #if defined(DEBUG_MMU)
1349 printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
1355 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
1357 #if defined(DEBUG_MMU)
1358 printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
1360 if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
1361 (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
1365 if (!(env->cpuid_features & CPUID_SSE))
1366 new_cr4 &= ~CR4_OSFXSR_MASK;
1367 if (new_cr4 & CR4_OSFXSR_MASK)
1368 env->hflags |= HF_OSFXSR_MASK;
1370 env->hflags &= ~HF_OSFXSR_MASK;
1372 env->cr[4] = new_cr4;
1375 #if defined(CONFIG_USER_ONLY)
1377 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
1378 int is_write, int mmu_idx, int is_softmmu)
1380 /* user mode only emulation */
1383 env->error_code = (is_write << PG_ERROR_W_BIT);
1384 env->error_code |= PG_ERROR_U_MASK;
1385 env->exception_index = EXCP0E_PAGE;
1389 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
1396 /* XXX: This value should match the one returned by CPUID
1398 # if defined(TARGET_X86_64)
1399 # define PHYS_ADDR_MASK 0xfffffff000LL
1401 # define PHYS_ADDR_MASK 0xffffff000LL
1405 -1 = cannot handle fault
1406 0 = nothing more to do
1407 1 = generate PF fault
1408 2 = soft MMU activation required for this block
1410 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
1411 int is_write1, int mmu_idx, int is_softmmu)
1414 target_ulong pde_addr, pte_addr;
1415 int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
1416 target_phys_addr_t paddr;
1417 uint32_t page_offset;
1418 target_ulong vaddr, virt_addr;
1420 is_user = mmu_idx == MMU_USER_IDX;
1421 #if defined(DEBUG_MMU)
1422 printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
1423 addr, is_write1, is_user, env->eip);
1425 is_write = is_write1 & 1;
1427 if (!(env->cr[0] & CR0_PG_MASK)) {
1429 virt_addr = addr & TARGET_PAGE_MASK;
1430 prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
1435 if (env->cr[4] & CR4_PAE_MASK) {
1437 target_ulong pdpe_addr;
1439 #ifdef TARGET_X86_64
1440 if (env->hflags & HF_LMA_MASK) {
1441 uint64_t pml4e_addr, pml4e;
1444 /* test virtual address sign extension */
1445 sext = (int64_t)addr >> 47;
1446 if (sext != 0 && sext != -1) {
1447 env->error_code = 0;
1448 env->exception_index = EXCP0D_GPF;
1452 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1454 pml4e = ldq_phys(pml4e_addr);
1455 if (!(pml4e & PG_PRESENT_MASK)) {
1459 if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
1460 error_code = PG_ERROR_RSVD_MASK;
1463 if (!(pml4e & PG_ACCESSED_MASK)) {
1464 pml4e |= PG_ACCESSED_MASK;
1465 stl_phys_notdirty(pml4e_addr, pml4e);
1467 ptep = pml4e ^ PG_NX_MASK;
1468 pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
1470 pdpe = ldq_phys(pdpe_addr);
1471 if (!(pdpe & PG_PRESENT_MASK)) {
1475 if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
1476 error_code = PG_ERROR_RSVD_MASK;
1479 ptep &= pdpe ^ PG_NX_MASK;
1480 if (!(pdpe & PG_ACCESSED_MASK)) {
1481 pdpe |= PG_ACCESSED_MASK;
1482 stl_phys_notdirty(pdpe_addr, pdpe);
1487 /* XXX: load them when cr3 is loaded ? */
1488 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1490 pdpe = ldq_phys(pdpe_addr);
1491 if (!(pdpe & PG_PRESENT_MASK)) {
1495 ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
1498 pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
1500 pde = ldq_phys(pde_addr);
1501 if (!(pde & PG_PRESENT_MASK)) {
1505 if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
1506 error_code = PG_ERROR_RSVD_MASK;
1509 ptep &= pde ^ PG_NX_MASK;
1510 if (pde & PG_PSE_MASK) {
1512 page_size = 2048 * 1024;
1514 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1515 goto do_fault_protect;
1517 if (!(ptep & PG_USER_MASK))
1518 goto do_fault_protect;
1519 if (is_write && !(ptep & PG_RW_MASK))
1520 goto do_fault_protect;
1522 if ((env->cr[0] & CR0_WP_MASK) &&
1523 is_write && !(ptep & PG_RW_MASK))
1524 goto do_fault_protect;
1526 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1527 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1528 pde |= PG_ACCESSED_MASK;
1530 pde |= PG_DIRTY_MASK;
1531 stl_phys_notdirty(pde_addr, pde);
1533 /* align to page_size */
1534 pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff);
1535 virt_addr = addr & ~(page_size - 1);
1538 if (!(pde & PG_ACCESSED_MASK)) {
1539 pde |= PG_ACCESSED_MASK;
1540 stl_phys_notdirty(pde_addr, pde);
1542 pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
1544 pte = ldq_phys(pte_addr);
1545 if (!(pte & PG_PRESENT_MASK)) {
1549 if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
1550 error_code = PG_ERROR_RSVD_MASK;
1553 /* combine pde and pte nx, user and rw protections */
1554 ptep &= pte ^ PG_NX_MASK;
1556 if ((ptep & PG_NX_MASK) && is_write1 == 2)
1557 goto do_fault_protect;
1559 if (!(ptep & PG_USER_MASK))
1560 goto do_fault_protect;
1561 if (is_write && !(ptep & PG_RW_MASK))
1562 goto do_fault_protect;
1564 if ((env->cr[0] & CR0_WP_MASK) &&
1565 is_write && !(ptep & PG_RW_MASK))
1566 goto do_fault_protect;
1568 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1569 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1570 pte |= PG_ACCESSED_MASK;
1572 pte |= PG_DIRTY_MASK;
1573 stl_phys_notdirty(pte_addr, pte);
1576 virt_addr = addr & ~0xfff;
1577 pte = pte & (PHYS_ADDR_MASK | 0xfff);
1582 /* page directory entry */
1583 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
1585 pde = ldl_phys(pde_addr);
1586 if (!(pde & PG_PRESENT_MASK)) {
1590 /* if PSE bit is set, then we use a 4MB page */
1591 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1592 page_size = 4096 * 1024;
1594 if (!(pde & PG_USER_MASK))
1595 goto do_fault_protect;
1596 if (is_write && !(pde & PG_RW_MASK))
1597 goto do_fault_protect;
1599 if ((env->cr[0] & CR0_WP_MASK) &&
1600 is_write && !(pde & PG_RW_MASK))
1601 goto do_fault_protect;
1603 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
1604 if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
1605 pde |= PG_ACCESSED_MASK;
1607 pde |= PG_DIRTY_MASK;
1608 stl_phys_notdirty(pde_addr, pde);
1611 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1613 virt_addr = addr & ~(page_size - 1);
1615 if (!(pde & PG_ACCESSED_MASK)) {
1616 pde |= PG_ACCESSED_MASK;
1617 stl_phys_notdirty(pde_addr, pde);
1620 /* page directory entry */
1621 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
1623 pte = ldl_phys(pte_addr);
1624 if (!(pte & PG_PRESENT_MASK)) {
1628 /* combine pde and pte user and rw protections */
1631 if (!(ptep & PG_USER_MASK))
1632 goto do_fault_protect;
1633 if (is_write && !(ptep & PG_RW_MASK))
1634 goto do_fault_protect;
1636 if ((env->cr[0] & CR0_WP_MASK) &&
1637 is_write && !(ptep & PG_RW_MASK))
1638 goto do_fault_protect;
1640 is_dirty = is_write && !(pte & PG_DIRTY_MASK);
1641 if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
1642 pte |= PG_ACCESSED_MASK;
1644 pte |= PG_DIRTY_MASK;
1645 stl_phys_notdirty(pte_addr, pte);
1648 virt_addr = addr & ~0xfff;
1651 /* the page can be put in the TLB */
1653 if (!(ptep & PG_NX_MASK))
1655 if (pte & PG_DIRTY_MASK) {
1656 /* only set write access if already dirty... otherwise wait
1659 if (ptep & PG_RW_MASK)
1662 if (!(env->cr[0] & CR0_WP_MASK) ||
1663 (ptep & PG_RW_MASK))
1668 pte = pte & env->a20_mask;
1670 /* Even if 4MB pages, we map only one 4KB page in the cache to
1671 avoid filling it too fast */
1672 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1673 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1674 vaddr = virt_addr + page_offset;
1676 ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
1679 error_code = PG_ERROR_P_MASK;
1681 error_code |= (is_write << PG_ERROR_W_BIT);
1683 error_code |= PG_ERROR_U_MASK;
1684 if (is_write1 == 2 &&
1685 (env->efer & MSR_EFER_NXE) &&
1686 (env->cr[4] & CR4_PAE_MASK))
1687 error_code |= PG_ERROR_I_D_MASK;
1688 if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
1689 /* cr2 is not modified in case of exceptions */
1690 stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
1695 env->error_code = error_code;
1696 env->exception_index = EXCP0E_PAGE;
1700 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
1702 target_ulong pde_addr, pte_addr;
1704 target_phys_addr_t paddr;
1705 uint32_t page_offset;
1708 if (env->cr[4] & CR4_PAE_MASK) {
1709 target_ulong pdpe_addr;
1712 #ifdef TARGET_X86_64
1713 if (env->hflags & HF_LMA_MASK) {
1714 uint64_t pml4e_addr, pml4e;
1717 /* test virtual address sign extension */
1718 sext = (int64_t)addr >> 47;
1719 if (sext != 0 && sext != -1)
1722 pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
1724 pml4e = ldq_phys(pml4e_addr);
1725 if (!(pml4e & PG_PRESENT_MASK))
1728 pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) &
1730 pdpe = ldq_phys(pdpe_addr);
1731 if (!(pdpe & PG_PRESENT_MASK))
1736 pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
1738 pdpe = ldq_phys(pdpe_addr);
1739 if (!(pdpe & PG_PRESENT_MASK))
1743 pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) &
1745 pde = ldq_phys(pde_addr);
1746 if (!(pde & PG_PRESENT_MASK)) {
1749 if (pde & PG_PSE_MASK) {
1751 page_size = 2048 * 1024;
1752 pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */
1755 pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) &
1758 pte = ldq_phys(pte_addr);
1760 if (!(pte & PG_PRESENT_MASK))
1765 if (!(env->cr[0] & CR0_PG_MASK)) {
1769 /* page directory entry */
1770 pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
1771 pde = ldl_phys(pde_addr);
1772 if (!(pde & PG_PRESENT_MASK))
1774 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1775 pte = pde & ~0x003ff000; /* align to 4MB */
1776 page_size = 4096 * 1024;
1778 /* page directory entry */
1779 pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
1780 pte = ldl_phys(pte_addr);
1781 if (!(pte & PG_PRESENT_MASK))
1786 pte = pte & env->a20_mask;
1789 page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
1790 paddr = (pte & TARGET_PAGE_MASK) + page_offset;
1794 void hw_breakpoint_insert(CPUState *env, int index)
1798 switch (hw_breakpoint_type(env->dr[7], index)) {
1800 if (hw_breakpoint_enabled(env->dr[7], index))
1801 err = cpu_breakpoint_insert(env, env->dr[index], BP_CPU,
1802 &env->cpu_breakpoint[index]);
1805 type = BP_CPU | BP_MEM_WRITE;
1808 /* No support for I/O watchpoints yet */
1811 type = BP_CPU | BP_MEM_ACCESS;
1813 err = cpu_watchpoint_insert(env, env->dr[index],
1814 hw_breakpoint_len(env->dr[7], index),
1815 type, &env->cpu_watchpoint[index]);
1819 env->cpu_breakpoint[index] = NULL;
1822 void hw_breakpoint_remove(CPUState *env, int index)
1824 if (!env->cpu_breakpoint[index])
1826 switch (hw_breakpoint_type(env->dr[7], index)) {
1828 if (hw_breakpoint_enabled(env->dr[7], index))
1829 cpu_breakpoint_remove_by_ref(env, env->cpu_breakpoint[index]);
1833 cpu_watchpoint_remove_by_ref(env, env->cpu_watchpoint[index]);
1836 /* No support for I/O watchpoints yet */
1841 int check_hw_breakpoints(CPUState *env, int force_dr6_update)
1845 int hit_enabled = 0;
1847 dr6 = env->dr[6] & ~0xf;
1848 for (reg = 0; reg < 4; reg++) {
1849 type = hw_breakpoint_type(env->dr[7], reg);
1850 if ((type == 0 && env->dr[reg] == env->eip) ||
1851 ((type & 1) && env->cpu_watchpoint[reg] &&
1852 (env->cpu_watchpoint[reg]->flags & BP_WATCHPOINT_HIT))) {
1854 if (hw_breakpoint_enabled(env->dr[7], reg))
1858 if (hit_enabled || force_dr6_update)
1863 static CPUDebugExcpHandler *prev_debug_excp_handler;
1865 void raise_exception_env(int exception_index, CPUState *env);
1867 static void breakpoint_handler(CPUState *env)
1871 if (env->watchpoint_hit) {
1872 if (env->watchpoint_hit->flags & BP_CPU) {
1873 env->watchpoint_hit = NULL;
1874 if (check_hw_breakpoints(env, 0))
1875 raise_exception_env(EXCP01_DB, env);
1877 cpu_resume_from_signal(env, NULL);
1880 QTAILQ_FOREACH(bp, &env->breakpoints, entry)
1881 if (bp->pc == env->eip) {
1882 if (bp->flags & BP_CPU) {
1883 check_hw_breakpoints(env, 1);
1884 raise_exception_env(EXCP01_DB, env);
1889 if (prev_debug_excp_handler)
1890 prev_debug_excp_handler(env);
1893 /* This should come from sysemu.h - if we could include it here... */
1894 void qemu_system_reset_request(void);
1896 void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status,
1897 uint64_t mcg_status, uint64_t addr, uint64_t misc)
1899 uint64_t mcg_cap = cenv->mcg_cap;
1900 unsigned bank_num = mcg_cap & 0xff;
1901 uint64_t *banks = cenv->mce_banks;
1903 if (bank >= bank_num || !(status & MCI_STATUS_VAL))
1907 * if MSR_MCG_CTL is not all 1s, the uncorrected error
1908 * reporting is disabled
1910 if ((status & MCI_STATUS_UC) && (mcg_cap & MCG_CTL_P) &&
1911 cenv->mcg_ctl != ~(uint64_t)0)
1915 * if MSR_MCi_CTL is not all 1s, the uncorrected error
1916 * reporting is disabled for the bank
1918 if ((status & MCI_STATUS_UC) && banks[0] != ~(uint64_t)0)
1920 if (status & MCI_STATUS_UC) {
1921 if ((cenv->mcg_status & MCG_STATUS_MCIP) ||
1922 !(cenv->cr[4] & CR4_MCE_MASK)) {
1923 fprintf(stderr, "injects mce exception while previous "
1924 "one is in progress!\n");
1925 qemu_log_mask(CPU_LOG_RESET, "Triple fault\n");
1926 qemu_system_reset_request();
1929 if (banks[1] & MCI_STATUS_VAL)
1930 status |= MCI_STATUS_OVER;
1933 cenv->mcg_status = mcg_status;
1935 cpu_interrupt(cenv, CPU_INTERRUPT_MCE);
1936 } else if (!(banks[1] & MCI_STATUS_VAL)
1937 || !(banks[1] & MCI_STATUS_UC)) {
1938 if (banks[1] & MCI_STATUS_VAL)
1939 status |= MCI_STATUS_OVER;
1944 banks[1] |= MCI_STATUS_OVER;
1946 #endif /* !CONFIG_USER_ONLY */
1948 static void mce_init(CPUX86State *cenv)
1950 unsigned int bank, bank_num;
1952 if (((cenv->cpuid_version >> 8)&0xf) >= 6
1953 && (cenv->cpuid_features&(CPUID_MCE|CPUID_MCA)) == (CPUID_MCE|CPUID_MCA)) {
1954 cenv->mcg_cap = MCE_CAP_DEF | MCE_BANKS_DEF;
1955 cenv->mcg_ctl = ~(uint64_t)0;
1956 bank_num = MCE_BANKS_DEF;
1957 for (bank = 0; bank < bank_num; bank++)
1958 cenv->mce_banks[bank*4] = ~(uint64_t)0;
1962 static void host_cpuid(uint32_t function, uint32_t count,
1963 uint32_t *eax, uint32_t *ebx,
1964 uint32_t *ecx, uint32_t *edx)
1966 #if defined(CONFIG_KVM)
1970 asm volatile("cpuid"
1971 : "=a"(vec[0]), "=b"(vec[1]),
1972 "=c"(vec[2]), "=d"(vec[3])
1973 : "0"(function), "c"(count) : "cc");
1975 asm volatile("pusha \n\t"
1977 "mov %%eax, 0(%2) \n\t"
1978 "mov %%ebx, 4(%2) \n\t"
1979 "mov %%ecx, 8(%2) \n\t"
1980 "mov %%edx, 12(%2) \n\t"
1982 : : "a"(function), "c"(count), "S"(vec)
1997 static void get_cpuid_vendor(CPUX86State *env, uint32_t *ebx,
1998 uint32_t *ecx, uint32_t *edx)
2000 *ebx = env->cpuid_vendor1;
2001 *edx = env->cpuid_vendor2;
2002 *ecx = env->cpuid_vendor3;
2004 /* sysenter isn't supported on compatibility mode on AMD, syscall
2005 * isn't supported in compatibility mode on Intel.
2006 * Normally we advertise the actual cpu vendor, but you can override
2007 * this if you want to use KVM's sysenter/syscall emulation
2008 * in compatibility mode and when doing cross vendor migration
2010 if (kvm_enabled() && env->cpuid_vendor_override) {
2011 host_cpuid(0, 0, NULL, ebx, ecx, edx);
2015 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
2016 uint32_t *eax, uint32_t *ebx,
2017 uint32_t *ecx, uint32_t *edx)
2019 /* test if maximum index reached */
2020 if (index & 0x80000000) {
2021 if (index > env->cpuid_xlevel)
2022 index = env->cpuid_level;
2024 if (index > env->cpuid_level)
2025 index = env->cpuid_level;
2030 *eax = env->cpuid_level;
2031 get_cpuid_vendor(env, ebx, ecx, edx);
2034 *eax = env->cpuid_version;
2035 *ebx = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
2036 *ecx = env->cpuid_ext_features;
2037 *edx = env->cpuid_features;
2038 if (env->nr_cores * env->nr_threads > 1) {
2039 *ebx |= (env->nr_cores * env->nr_threads) << 16;
2040 *edx |= 1 << 28; /* HTT bit */
2044 /* cache info: needed for Pentium Pro compatibility */
2051 /* cache info: needed for Core compatibility */
2052 if (env->nr_cores > 1) {
2053 *eax = (env->nr_cores - 1) << 26;
2058 case 0: /* L1 dcache info */
2064 case 1: /* L1 icache info */
2070 case 2: /* L2 cache info */
2072 if (env->nr_threads > 1) {
2073 *eax |= (env->nr_threads - 1) << 14;
2079 default: /* end of info */
2088 /* mwait info: needed for Core compatibility */
2089 *eax = 0; /* Smallest monitor-line size in bytes */
2090 *ebx = 0; /* Largest monitor-line size in bytes */
2091 *ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
2095 /* Thermal and Power Leaf */
2102 /* Direct Cache Access Information Leaf */
2103 *eax = 0; /* Bits 0-31 in DCA_CAP MSR */
2109 /* Architectural Performance Monitoring Leaf */
2116 *eax = env->cpuid_xlevel;
2117 *ebx = env->cpuid_vendor1;
2118 *edx = env->cpuid_vendor2;
2119 *ecx = env->cpuid_vendor3;
2122 *eax = env->cpuid_version;
2124 *ecx = env->cpuid_ext3_features;
2125 *edx = env->cpuid_ext2_features;
2127 /* The Linux kernel checks for the CMPLegacy bit and
2128 * discards multiple thread information if it is set.
2129 * So dont set it here for Intel to make Linux guests happy.
2131 if (env->nr_cores * env->nr_threads > 1) {
2132 uint32_t tebx, tecx, tedx;
2133 get_cpuid_vendor(env, &tebx, &tecx, &tedx);
2134 if (tebx != CPUID_VENDOR_INTEL_1 ||
2135 tedx != CPUID_VENDOR_INTEL_2 ||
2136 tecx != CPUID_VENDOR_INTEL_3) {
2137 *ecx |= 1 << 1; /* CmpLegacy bit */
2141 if (kvm_enabled()) {
2142 /* Nested SVM not yet supported in upstream QEMU */
2143 *ecx &= ~CPUID_EXT3_SVM;
2149 *eax = env->cpuid_model[(index - 0x80000002) * 4 + 0];
2150 *ebx = env->cpuid_model[(index - 0x80000002) * 4 + 1];
2151 *ecx = env->cpuid_model[(index - 0x80000002) * 4 + 2];
2152 *edx = env->cpuid_model[(index - 0x80000002) * 4 + 3];
2155 /* cache info (L1 cache) */
2162 /* cache info (L2 cache) */
2169 /* virtual & phys address size in low 2 bytes. */
2170 /* XXX: This value must match the one used in the MMU code. */
2171 if (env->cpuid_ext2_features & CPUID_EXT2_LM) {
2172 /* 64 bit processor */
2173 /* XXX: The physical address space is limited to 42 bits in exec.c. */
2174 *eax = 0x00003028; /* 48 bits virtual, 40 bits physical */
2176 if (env->cpuid_features & CPUID_PSE36)
2177 *eax = 0x00000024; /* 36 bits physical */
2179 *eax = 0x00000020; /* 32 bits physical */
2184 if (env->nr_cores * env->nr_threads > 1) {
2185 *ecx |= (env->nr_cores * env->nr_threads) - 1;
2189 *eax = 0x00000001; /* SVM Revision */
2190 *ebx = 0x00000010; /* nr of ASIDs */
2192 *edx = 0; /* optional features */
2195 /* reserved values: zero */
2205 int cpu_x86_get_descr_debug(CPUX86State *env, unsigned int selector,
2206 target_ulong *base, unsigned int *limit,
2207 unsigned int *flags)
2218 index = selector & ~7;
2219 ptr = dt->base + index;
2220 if ((index + 7) > dt->limit
2221 || cpu_memory_rw_debug(env, ptr, (uint8_t *)&e1, sizeof(e1), 0) != 0
2222 || cpu_memory_rw_debug(env, ptr+4, (uint8_t *)&e2, sizeof(e2), 0) != 0)
2225 *base = ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000));
2226 *limit = (e1 & 0xffff) | (e2 & 0x000f0000);
2227 if (e2 & DESC_G_MASK)
2228 *limit = (*limit << 12) | 0xfff;
2234 CPUX86State *cpu_x86_init(const char *cpu_model)
2239 env = qemu_mallocz(sizeof(CPUX86State));
2241 env->cpu_model_str = cpu_model;
2243 /* init various static tables */
2246 optimize_flags_init();
2247 #ifndef CONFIG_USER_ONLY
2248 prev_debug_excp_handler =
2249 cpu_set_debug_excp_handler(breakpoint_handler);
2252 if (cpu_x86_register(env, cpu_model) < 0) {
2258 qemu_init_vcpu(env);
2263 #if !defined(CONFIG_USER_ONLY)
2264 void do_cpu_init(CPUState *env)
2266 int sipi = env->interrupt_request & CPU_INTERRUPT_SIPI;
2268 env->interrupt_request = sipi;
2269 apic_init_reset(env);
2272 void do_cpu_sipi(CPUState *env)
2277 void do_cpu_init(CPUState *env)
2280 void do_cpu_sipi(CPUState *env)