2 * i386 CPUID helper functions
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/>.
27 #include "qemu-option.h"
28 #include "qemu-config.h"
30 #include "qapi/qapi-visit-core.h"
31 #include "arch_init.h"
36 #if defined(CONFIG_KVM)
37 #include <linux/kvm_para.h>
41 #ifndef CONFIG_USER_ONLY
43 #include "hw/sysbus.h"
44 #include "hw/apic_internal.h"
47 /* feature flags taken from "Intel Processor Identification and the CPUID
48 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
49 * between feature naming conventions, aliases may be added.
51 static const char *feature_name
[] = {
52 "fpu", "vme", "de", "pse",
53 "tsc", "msr", "pae", "mce",
54 "cx8", "apic", NULL
, "sep",
55 "mtrr", "pge", "mca", "cmov",
56 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */,
57 NULL
, "ds" /* Intel dts */, "acpi", "mmx",
58 "fxsr", "sse", "sse2", "ss",
59 "ht" /* Intel htt */, "tm", "ia64", "pbe",
61 static const char *ext_feature_name
[] = {
62 "pni|sse3" /* Intel,AMD sse3 */, "pclmulqdq|pclmuldq", "dtes64", "monitor",
63 "ds_cpl", "vmx", "smx", "est",
64 "tm2", "ssse3", "cid", NULL
,
65 "fma", "cx16", "xtpr", "pdcm",
66 NULL
, "pcid", "dca", "sse4.1|sse4_1",
67 "sse4.2|sse4_2", "x2apic", "movbe", "popcnt",
68 "tsc-deadline", "aes", "xsave", "osxsave",
69 "avx", NULL
, NULL
, "hypervisor",
71 /* Feature names that are already defined on feature_name[] but are set on
72 * CPUID[8000_0001].EDX on AMD CPUs don't have their names on
73 * ext2_feature_name[]. They are copied automatically to cpuid_ext2_features
74 * if and only if CPU vendor is AMD.
76 static const char *ext2_feature_name
[] = {
77 NULL
/* fpu */, NULL
/* vme */, NULL
/* de */, NULL
/* pse */,
78 NULL
/* tsc */, NULL
/* msr */, NULL
/* pae */, NULL
/* mce */,
79 NULL
/* cx8 */ /* AMD CMPXCHG8B */, NULL
/* apic */, NULL
, "syscall",
80 NULL
/* mtrr */, NULL
/* pge */, NULL
/* mca */, NULL
/* cmov */,
81 NULL
/* pat */, NULL
/* pse36 */, NULL
, NULL
/* Linux mp */,
82 "nx|xd", NULL
, "mmxext", NULL
/* mmx */,
83 NULL
/* fxsr */, "fxsr_opt|ffxsr", "pdpe1gb" /* AMD Page1GB */, "rdtscp",
84 NULL
, "lm|i64", "3dnowext", "3dnow",
86 static const char *ext3_feature_name
[] = {
87 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */,
88 "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
89 "3dnowprefetch", "osvw", "ibs", "xop",
90 "skinit", "wdt", NULL
, NULL
,
91 "fma4", NULL
, "cvt16", "nodeid_msr",
92 NULL
, NULL
, NULL
, NULL
,
93 NULL
, NULL
, NULL
, NULL
,
94 NULL
, NULL
, NULL
, NULL
,
97 static const char *kvm_feature_name
[] = {
98 "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock",
99 "kvm_asyncpf", "kvm_steal_time", "kvm_pv_eoi", NULL
,
100 NULL
, NULL
, NULL
, NULL
,
101 NULL
, NULL
, NULL
, NULL
,
102 NULL
, NULL
, NULL
, NULL
,
103 NULL
, NULL
, NULL
, NULL
,
104 NULL
, NULL
, NULL
, NULL
,
105 NULL
, NULL
, NULL
, NULL
,
108 static const char *svm_feature_name
[] = {
109 "npt", "lbrv", "svm_lock", "nrip_save",
110 "tsc_scale", "vmcb_clean", "flushbyasid", "decodeassists",
111 NULL
, NULL
, "pause_filter", NULL
,
112 "pfthreshold", NULL
, NULL
, NULL
,
113 NULL
, NULL
, NULL
, NULL
,
114 NULL
, NULL
, NULL
, NULL
,
115 NULL
, NULL
, NULL
, NULL
,
116 NULL
, NULL
, NULL
, NULL
,
119 static const char *cpuid_7_0_ebx_feature_name
[] = {
120 "fsgsbase", NULL
, NULL
, "bmi1", "hle", "avx2", NULL
, "smep",
121 "bmi2", "erms", "invpcid", "rtm", NULL
, NULL
, NULL
, NULL
,
122 NULL
, NULL
, NULL
, NULL
, "smap", NULL
, NULL
, NULL
,
123 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
126 /* collects per-function cpuid data
128 typedef struct model_features_t
{
129 uint32_t *guest_feat
;
132 const char **flag_names
;
137 int enforce_cpuid
= 0;
139 #if defined(CONFIG_KVM)
140 static uint32_t kvm_default_features
= (1 << KVM_FEATURE_CLOCKSOURCE
) |
141 (1 << KVM_FEATURE_NOP_IO_DELAY
) |
142 (1 << KVM_FEATURE_MMU_OP
) |
143 (1 << KVM_FEATURE_CLOCKSOURCE2
) |
144 (1 << KVM_FEATURE_ASYNC_PF
) |
145 (1 << KVM_FEATURE_STEAL_TIME
) |
146 (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT
);
147 static const uint32_t kvm_pv_eoi_features
= (0x1 << KVM_FEATURE_PV_EOI
);
149 static uint32_t kvm_default_features
= 0;
150 static const uint32_t kvm_pv_eoi_features
= 0;
153 void enable_kvm_pv_eoi(void)
155 kvm_default_features
|= kvm_pv_eoi_features
;
158 void host_cpuid(uint32_t function
, uint32_t count
,
159 uint32_t *eax
, uint32_t *ebx
, uint32_t *ecx
, uint32_t *edx
)
161 #if defined(CONFIG_KVM)
166 : "=a"(vec
[0]), "=b"(vec
[1]),
167 "=c"(vec
[2]), "=d"(vec
[3])
168 : "0"(function
), "c"(count
) : "cc");
170 asm volatile("pusha \n\t"
172 "mov %%eax, 0(%2) \n\t"
173 "mov %%ebx, 4(%2) \n\t"
174 "mov %%ecx, 8(%2) \n\t"
175 "mov %%edx, 12(%2) \n\t"
177 : : "a"(function
), "c"(count
), "S"(vec
)
192 #define iswhite(c) ((c) && ((c) <= ' ' || '~' < (c)))
194 /* general substring compare of *[s1..e1) and *[s2..e2). sx is start of
195 * a substring. ex if !NULL points to the first char after a substring,
196 * otherwise the string is assumed to sized by a terminating nul.
197 * Return lexical ordering of *s1:*s2.
199 static int sstrcmp(const char *s1
, const char *e1
, const char *s2
,
203 if (!*s1
|| !*s2
|| *s1
!= *s2
)
206 if (s1
== e1
&& s2
== e2
)
215 /* compare *[s..e) to *altstr. *altstr may be a simple string or multiple
216 * '|' delimited (possibly empty) strings in which case search for a match
217 * within the alternatives proceeds left to right. Return 0 for success,
218 * non-zero otherwise.
220 static int altcmp(const char *s
, const char *e
, const char *altstr
)
224 for (q
= p
= altstr
; ; ) {
225 while (*p
&& *p
!= '|')
227 if ((q
== p
&& !*s
) || (q
!= p
&& !sstrcmp(s
, e
, q
, p
)))
236 /* search featureset for flag *[s..e), if found set corresponding bit in
237 * *pval and return true, otherwise return false
239 static bool lookup_feature(uint32_t *pval
, const char *s
, const char *e
,
240 const char **featureset
)
246 for (mask
= 1, ppc
= featureset
; mask
; mask
<<= 1, ++ppc
) {
247 if (*ppc
&& !altcmp(s
, e
, *ppc
)) {
255 static void add_flagname_to_bitmaps(const char *flagname
, uint32_t *features
,
256 uint32_t *ext_features
,
257 uint32_t *ext2_features
,
258 uint32_t *ext3_features
,
259 uint32_t *kvm_features
,
260 uint32_t *svm_features
,
261 uint32_t *cpuid_7_0_ebx_features
)
263 if (!lookup_feature(features
, flagname
, NULL
, feature_name
) &&
264 !lookup_feature(ext_features
, flagname
, NULL
, ext_feature_name
) &&
265 !lookup_feature(ext2_features
, flagname
, NULL
, ext2_feature_name
) &&
266 !lookup_feature(ext3_features
, flagname
, NULL
, ext3_feature_name
) &&
267 !lookup_feature(kvm_features
, flagname
, NULL
, kvm_feature_name
) &&
268 !lookup_feature(svm_features
, flagname
, NULL
, svm_feature_name
) &&
269 !lookup_feature(cpuid_7_0_ebx_features
, flagname
, NULL
,
270 cpuid_7_0_ebx_feature_name
))
271 fprintf(stderr
, "CPU feature %s not found\n", flagname
);
274 typedef struct x86_def_t
{
275 struct x86_def_t
*next
;
278 uint32_t vendor1
, vendor2
, vendor3
;
283 uint32_t features
, ext_features
, ext2_features
, ext3_features
;
284 uint32_t kvm_features
, svm_features
;
288 /* Store the results of Centaur's CPUID instructions */
289 uint32_t ext4_features
;
291 /* The feature bits on CPUID[EAX=7,ECX=0].EBX */
292 uint32_t cpuid_7_0_ebx_features
;
295 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
296 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
297 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC)
298 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
299 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
300 CPUID_PSE36 | CPUID_FXSR)
301 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
302 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
303 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
304 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
305 CPUID_PAE | CPUID_SEP | CPUID_APIC)
307 #define TCG_FEATURES (CPUID_FP87 | CPUID_PSE | CPUID_TSC | CPUID_MSR | \
308 CPUID_PAE | CPUID_MCE | CPUID_CX8 | CPUID_APIC | CPUID_SEP | \
309 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
310 CPUID_PSE36 | CPUID_CLFLUSH | CPUID_ACPI | CPUID_MMX | \
311 CPUID_FXSR | CPUID_SSE | CPUID_SSE2 | CPUID_SS)
312 /* partly implemented:
313 CPUID_MTRR, CPUID_MCA, CPUID_CLFLUSH (needed for Win64)
314 CPUID_PSE36 (needed for Solaris) */
316 CPUID_VME, CPUID_DTS, CPUID_SS, CPUID_HT, CPUID_TM, CPUID_PBE */
317 #define TCG_EXT_FEATURES (CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | \
318 CPUID_EXT_CX16 | CPUID_EXT_POPCNT | \
319 CPUID_EXT_HYPERVISOR)
321 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
322 CPUID_EXT_TM2, CPUID_EXT_XTPR, CPUID_EXT_PDCM, CPUID_EXT_XSAVE */
323 #define TCG_EXT2_FEATURES ((TCG_FEATURES & CPUID_EXT2_AMD_ALIASES) | \
324 CPUID_EXT2_NX | CPUID_EXT2_MMXEXT | CPUID_EXT2_RDTSCP | \
325 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT)
327 CPUID_EXT2_PDPE1GB */
328 #define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
329 CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
330 #define TCG_SVM_FEATURES 0
331 #define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP)
333 /* maintains list of cpu model definitions
335 static x86_def_t
*x86_defs
= {NULL
};
337 /* built-in cpu model definitions (deprecated)
339 static x86_def_t builtin_x86_defs
[] = {
343 .vendor1
= CPUID_VENDOR_AMD_1
,
344 .vendor2
= CPUID_VENDOR_AMD_2
,
345 .vendor3
= CPUID_VENDOR_AMD_3
,
349 .features
= PPRO_FEATURES
|
350 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
352 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_CX16
| CPUID_EXT_POPCNT
,
353 .ext2_features
= (PPRO_FEATURES
& CPUID_EXT2_AMD_ALIASES
) |
354 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
355 .ext3_features
= CPUID_EXT3_LAHF_LM
| CPUID_EXT3_SVM
|
356 CPUID_EXT3_ABM
| CPUID_EXT3_SSE4A
,
357 .xlevel
= 0x8000000A,
362 .vendor1
= CPUID_VENDOR_AMD_1
,
363 .vendor2
= CPUID_VENDOR_AMD_2
,
364 .vendor3
= CPUID_VENDOR_AMD_3
,
368 .features
= PPRO_FEATURES
|
369 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
370 CPUID_PSE36
| CPUID_VME
| CPUID_HT
,
371 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_CX16
|
373 .ext2_features
= (PPRO_FEATURES
& CPUID_EXT2_AMD_ALIASES
) |
374 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
|
375 CPUID_EXT2_3DNOW
| CPUID_EXT2_3DNOWEXT
| CPUID_EXT2_MMXEXT
|
376 CPUID_EXT2_FFXSR
| CPUID_EXT2_PDPE1GB
| CPUID_EXT2_RDTSCP
,
377 /* Missing: CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
379 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
380 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
381 .ext3_features
= CPUID_EXT3_LAHF_LM
| CPUID_EXT3_SVM
|
382 CPUID_EXT3_ABM
| CPUID_EXT3_SSE4A
,
383 .svm_features
= CPUID_SVM_NPT
| CPUID_SVM_LBRV
,
384 .xlevel
= 0x8000001A,
385 .model_id
= "AMD Phenom(tm) 9550 Quad-Core Processor"
393 .features
= PPRO_FEATURES
|
394 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
395 CPUID_PSE36
| CPUID_VME
| CPUID_DTS
| CPUID_ACPI
| CPUID_SS
|
396 CPUID_HT
| CPUID_TM
| CPUID_PBE
,
397 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_SSSE3
|
398 CPUID_EXT_DTES64
| CPUID_EXT_DSCPL
| CPUID_EXT_VMX
| CPUID_EXT_EST
|
399 CPUID_EXT_TM2
| CPUID_EXT_CX16
| CPUID_EXT_XTPR
| CPUID_EXT_PDCM
,
400 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
401 .ext3_features
= CPUID_EXT3_LAHF_LM
,
402 .xlevel
= 0x80000008,
403 .model_id
= "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
408 .vendor1
= CPUID_VENDOR_INTEL_1
,
409 .vendor2
= CPUID_VENDOR_INTEL_2
,
410 .vendor3
= CPUID_VENDOR_INTEL_3
,
414 /* Missing: CPUID_VME, CPUID_HT */
415 .features
= PPRO_FEATURES
|
416 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
418 /* Missing: CPUID_EXT_POPCNT, CPUID_EXT_MONITOR */
419 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_CX16
,
420 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
421 .ext2_features
= (PPRO_FEATURES
& CPUID_EXT2_AMD_ALIASES
) |
422 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
423 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
424 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
425 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
426 CPUID_EXT3_OSVW, CPUID_EXT3_IBS, CPUID_EXT3_SVM */
428 .xlevel
= 0x80000008,
429 .model_id
= "Common KVM processor"
437 .features
= PPRO_FEATURES
,
438 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_POPCNT
,
439 .xlevel
= 0x80000004,
447 .features
= PPRO_FEATURES
|
448 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
| CPUID_PSE36
,
449 .ext_features
= CPUID_EXT_SSE3
,
450 .ext2_features
= PPRO_FEATURES
& CPUID_EXT2_AMD_ALIASES
,
452 .xlevel
= 0x80000008,
453 .model_id
= "Common 32-bit KVM processor"
461 .features
= PPRO_FEATURES
| CPUID_VME
|
462 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
| CPUID_DTS
| CPUID_ACPI
|
463 CPUID_SS
| CPUID_HT
| CPUID_TM
| CPUID_PBE
,
464 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_VMX
|
465 CPUID_EXT_EST
| CPUID_EXT_TM2
| CPUID_EXT_XTPR
| CPUID_EXT_PDCM
,
466 .ext2_features
= CPUID_EXT2_NX
,
467 .xlevel
= 0x80000008,
468 .model_id
= "Genuine Intel(R) CPU T2600 @ 2.16GHz",
476 .features
= I486_FEATURES
,
485 .features
= PENTIUM_FEATURES
,
494 .features
= PENTIUM2_FEATURES
,
503 .features
= PENTIUM3_FEATURES
,
509 .vendor1
= CPUID_VENDOR_AMD_1
,
510 .vendor2
= CPUID_VENDOR_AMD_2
,
511 .vendor3
= CPUID_VENDOR_AMD_3
,
515 .features
= PPRO_FEATURES
| CPUID_PSE36
| CPUID_VME
| CPUID_MTRR
|
517 .ext2_features
= (PPRO_FEATURES
& CPUID_EXT2_AMD_ALIASES
) |
518 CPUID_EXT2_MMXEXT
| CPUID_EXT2_3DNOW
| CPUID_EXT2_3DNOWEXT
,
519 .xlevel
= 0x80000008,
523 /* original is on level 10 */
528 .features
= PPRO_FEATURES
|
529 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
| CPUID_VME
| CPUID_DTS
|
530 CPUID_ACPI
| CPUID_SS
| CPUID_HT
| CPUID_TM
| CPUID_PBE
,
531 /* Some CPUs got no CPUID_SEP */
532 .ext_features
= CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_SSSE3
|
533 CPUID_EXT_DSCPL
| CPUID_EXT_EST
| CPUID_EXT_TM2
| CPUID_EXT_XTPR
,
534 .ext2_features
= (PPRO_FEATURES
& CPUID_EXT2_AMD_ALIASES
) |
536 .ext3_features
= CPUID_EXT3_LAHF_LM
,
537 .xlevel
= 0x8000000A,
538 .model_id
= "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
543 .vendor1
= CPUID_VENDOR_INTEL_1
,
544 .vendor2
= CPUID_VENDOR_INTEL_2
,
545 .vendor3
= CPUID_VENDOR_INTEL_3
,
549 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
550 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
551 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
552 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
553 CPUID_DE
| CPUID_FP87
,
554 .ext_features
= CPUID_EXT_SSSE3
| CPUID_EXT_SSE3
,
555 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_NX
| CPUID_EXT2_SYSCALL
,
556 .ext3_features
= CPUID_EXT3_LAHF_LM
,
557 .xlevel
= 0x8000000A,
558 .model_id
= "Intel Celeron_4x0 (Conroe/Merom Class Core 2)",
563 .vendor1
= CPUID_VENDOR_INTEL_1
,
564 .vendor2
= CPUID_VENDOR_INTEL_2
,
565 .vendor3
= CPUID_VENDOR_INTEL_3
,
569 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
570 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
571 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
572 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
573 CPUID_DE
| CPUID_FP87
,
574 .ext_features
= CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_SSSE3
|
576 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_NX
| CPUID_EXT2_SYSCALL
,
577 .ext3_features
= CPUID_EXT3_LAHF_LM
,
578 .xlevel
= 0x8000000A,
579 .model_id
= "Intel Core 2 Duo P9xxx (Penryn Class Core 2)",
584 .vendor1
= CPUID_VENDOR_INTEL_1
,
585 .vendor2
= CPUID_VENDOR_INTEL_2
,
586 .vendor3
= CPUID_VENDOR_INTEL_3
,
590 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
591 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
592 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
593 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
594 CPUID_DE
| CPUID_FP87
,
595 .ext_features
= CPUID_EXT_POPCNT
| CPUID_EXT_SSE42
| CPUID_EXT_SSE41
|
596 CPUID_EXT_CX16
| CPUID_EXT_SSSE3
| CPUID_EXT_SSE3
,
597 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
598 .ext3_features
= CPUID_EXT3_LAHF_LM
,
599 .xlevel
= 0x8000000A,
600 .model_id
= "Intel Core i7 9xx (Nehalem Class Core i7)",
605 .vendor1
= CPUID_VENDOR_INTEL_1
,
606 .vendor2
= CPUID_VENDOR_INTEL_2
,
607 .vendor3
= CPUID_VENDOR_INTEL_3
,
611 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
612 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
613 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
614 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
615 CPUID_DE
| CPUID_FP87
,
616 .ext_features
= CPUID_EXT_AES
| CPUID_EXT_POPCNT
| CPUID_EXT_SSE42
|
617 CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_SSSE3
|
619 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
620 .ext3_features
= CPUID_EXT3_LAHF_LM
,
621 .xlevel
= 0x8000000A,
622 .model_id
= "Westmere E56xx/L56xx/X56xx (Nehalem-C)",
625 .name
= "SandyBridge",
627 .vendor1
= CPUID_VENDOR_INTEL_1
,
628 .vendor2
= CPUID_VENDOR_INTEL_2
,
629 .vendor3
= CPUID_VENDOR_INTEL_3
,
633 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
634 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
635 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
636 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
637 CPUID_DE
| CPUID_FP87
,
638 .ext_features
= CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
639 CPUID_EXT_TSC_DEADLINE_TIMER
| CPUID_EXT_POPCNT
|
640 CPUID_EXT_X2APIC
| CPUID_EXT_SSE42
| CPUID_EXT_SSE41
|
641 CPUID_EXT_CX16
| CPUID_EXT_SSSE3
| CPUID_EXT_PCLMULQDQ
|
643 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_NX
|
645 .ext3_features
= CPUID_EXT3_LAHF_LM
,
646 .xlevel
= 0x8000000A,
647 .model_id
= "Intel Xeon E312xx (Sandy Bridge)",
650 .name
= "Opteron_G1",
652 .vendor1
= CPUID_VENDOR_AMD_1
,
653 .vendor2
= CPUID_VENDOR_AMD_2
,
654 .vendor3
= CPUID_VENDOR_AMD_3
,
658 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
659 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
660 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
661 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
662 CPUID_DE
| CPUID_FP87
,
663 .ext_features
= CPUID_EXT_SSE3
,
664 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_FXSR
| CPUID_EXT2_MMX
|
665 CPUID_EXT2_NX
| CPUID_EXT2_PSE36
| CPUID_EXT2_PAT
|
666 CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
| CPUID_EXT2_PGE
|
667 CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_APIC
|
668 CPUID_EXT2_CX8
| CPUID_EXT2_MCE
| CPUID_EXT2_PAE
| CPUID_EXT2_MSR
|
669 CPUID_EXT2_TSC
| CPUID_EXT2_PSE
| CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
670 .xlevel
= 0x80000008,
671 .model_id
= "AMD Opteron 240 (Gen 1 Class Opteron)",
674 .name
= "Opteron_G2",
676 .vendor1
= CPUID_VENDOR_AMD_1
,
677 .vendor2
= CPUID_VENDOR_AMD_2
,
678 .vendor3
= CPUID_VENDOR_AMD_3
,
682 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
683 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
684 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
685 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
686 CPUID_DE
| CPUID_FP87
,
687 .ext_features
= CPUID_EXT_CX16
| CPUID_EXT_SSE3
,
688 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_FXSR
|
689 CPUID_EXT2_MMX
| CPUID_EXT2_NX
| CPUID_EXT2_PSE36
|
690 CPUID_EXT2_PAT
| CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
|
691 CPUID_EXT2_PGE
| CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
|
692 CPUID_EXT2_APIC
| CPUID_EXT2_CX8
| CPUID_EXT2_MCE
|
693 CPUID_EXT2_PAE
| CPUID_EXT2_MSR
| CPUID_EXT2_TSC
| CPUID_EXT2_PSE
|
694 CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
695 .ext3_features
= CPUID_EXT3_SVM
| CPUID_EXT3_LAHF_LM
,
696 .xlevel
= 0x80000008,
697 .model_id
= "AMD Opteron 22xx (Gen 2 Class Opteron)",
700 .name
= "Opteron_G3",
702 .vendor1
= CPUID_VENDOR_AMD_1
,
703 .vendor2
= CPUID_VENDOR_AMD_2
,
704 .vendor3
= CPUID_VENDOR_AMD_3
,
708 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
709 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
710 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
711 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
712 CPUID_DE
| CPUID_FP87
,
713 .ext_features
= CPUID_EXT_POPCNT
| CPUID_EXT_CX16
| CPUID_EXT_MONITOR
|
715 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_FXSR
|
716 CPUID_EXT2_MMX
| CPUID_EXT2_NX
| CPUID_EXT2_PSE36
|
717 CPUID_EXT2_PAT
| CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
|
718 CPUID_EXT2_PGE
| CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
|
719 CPUID_EXT2_APIC
| CPUID_EXT2_CX8
| CPUID_EXT2_MCE
|
720 CPUID_EXT2_PAE
| CPUID_EXT2_MSR
| CPUID_EXT2_TSC
| CPUID_EXT2_PSE
|
721 CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
722 .ext3_features
= CPUID_EXT3_MISALIGNSSE
| CPUID_EXT3_SSE4A
|
723 CPUID_EXT3_ABM
| CPUID_EXT3_SVM
| CPUID_EXT3_LAHF_LM
,
724 .xlevel
= 0x80000008,
725 .model_id
= "AMD Opteron 23xx (Gen 3 Class Opteron)",
728 .name
= "Opteron_G4",
730 .vendor1
= CPUID_VENDOR_AMD_1
,
731 .vendor2
= CPUID_VENDOR_AMD_2
,
732 .vendor3
= CPUID_VENDOR_AMD_3
,
736 .features
= CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
737 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
738 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
739 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
740 CPUID_DE
| CPUID_FP87
,
741 .ext_features
= CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
742 CPUID_EXT_POPCNT
| CPUID_EXT_SSE42
| CPUID_EXT_SSE41
|
743 CPUID_EXT_CX16
| CPUID_EXT_SSSE3
| CPUID_EXT_PCLMULQDQ
|
745 .ext2_features
= CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
|
746 CPUID_EXT2_PDPE1GB
| CPUID_EXT2_FXSR
| CPUID_EXT2_MMX
|
747 CPUID_EXT2_NX
| CPUID_EXT2_PSE36
| CPUID_EXT2_PAT
|
748 CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
| CPUID_EXT2_PGE
|
749 CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_APIC
|
750 CPUID_EXT2_CX8
| CPUID_EXT2_MCE
| CPUID_EXT2_PAE
| CPUID_EXT2_MSR
|
751 CPUID_EXT2_TSC
| CPUID_EXT2_PSE
| CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
752 .ext3_features
= CPUID_EXT3_FMA4
| CPUID_EXT3_XOP
|
753 CPUID_EXT3_3DNOWPREFETCH
| CPUID_EXT3_MISALIGNSSE
|
754 CPUID_EXT3_SSE4A
| CPUID_EXT3_ABM
| CPUID_EXT3_SVM
|
756 .xlevel
= 0x8000001A,
757 .model_id
= "AMD Opteron 62xx class CPU",
761 static int cpu_x86_fill_model_id(char *str
)
763 uint32_t eax
= 0, ebx
= 0, ecx
= 0, edx
= 0;
766 for (i
= 0; i
< 3; i
++) {
767 host_cpuid(0x80000002 + i
, 0, &eax
, &ebx
, &ecx
, &edx
);
768 memcpy(str
+ i
* 16 + 0, &eax
, 4);
769 memcpy(str
+ i
* 16 + 4, &ebx
, 4);
770 memcpy(str
+ i
* 16 + 8, &ecx
, 4);
771 memcpy(str
+ i
* 16 + 12, &edx
, 4);
776 /* Fill a x86_def_t struct with information about the host CPU, and
777 * the CPU features supported by the host hardware + host kernel
779 * This function may be called only if KVM is enabled.
781 static void kvm_cpu_fill_host(x86_def_t
*x86_cpu_def
)
783 KVMState
*s
= kvm_state
;
784 uint32_t eax
= 0, ebx
= 0, ecx
= 0, edx
= 0;
786 assert(kvm_enabled());
788 x86_cpu_def
->name
= "host";
789 host_cpuid(0x0, 0, &eax
, &ebx
, &ecx
, &edx
);
790 x86_cpu_def
->vendor1
= ebx
;
791 x86_cpu_def
->vendor2
= edx
;
792 x86_cpu_def
->vendor3
= ecx
;
794 host_cpuid(0x1, 0, &eax
, &ebx
, &ecx
, &edx
);
795 x86_cpu_def
->family
= ((eax
>> 8) & 0x0F) + ((eax
>> 20) & 0xFF);
796 x86_cpu_def
->model
= ((eax
>> 4) & 0x0F) | ((eax
& 0xF0000) >> 12);
797 x86_cpu_def
->stepping
= eax
& 0x0F;
799 x86_cpu_def
->level
= kvm_arch_get_supported_cpuid(s
, 0x0, 0, R_EAX
);
800 x86_cpu_def
->features
= kvm_arch_get_supported_cpuid(s
, 0x1, 0, R_EDX
);
801 x86_cpu_def
->ext_features
= kvm_arch_get_supported_cpuid(s
, 0x1, 0, R_ECX
);
803 if (x86_cpu_def
->level
>= 7) {
804 x86_cpu_def
->cpuid_7_0_ebx_features
=
805 kvm_arch_get_supported_cpuid(s
, 0x7, 0, R_EBX
);
807 x86_cpu_def
->cpuid_7_0_ebx_features
= 0;
810 x86_cpu_def
->xlevel
= kvm_arch_get_supported_cpuid(s
, 0x80000000, 0, R_EAX
);
811 x86_cpu_def
->ext2_features
=
812 kvm_arch_get_supported_cpuid(s
, 0x80000001, 0, R_EDX
);
813 x86_cpu_def
->ext3_features
=
814 kvm_arch_get_supported_cpuid(s
, 0x80000001, 0, R_ECX
);
816 cpu_x86_fill_model_id(x86_cpu_def
->model_id
);
817 x86_cpu_def
->vendor_override
= 0;
819 /* Call Centaur's CPUID instruction. */
820 if (x86_cpu_def
->vendor1
== CPUID_VENDOR_VIA_1
&&
821 x86_cpu_def
->vendor2
== CPUID_VENDOR_VIA_2
&&
822 x86_cpu_def
->vendor3
== CPUID_VENDOR_VIA_3
) {
823 host_cpuid(0xC0000000, 0, &eax
, &ebx
, &ecx
, &edx
);
824 eax
= kvm_arch_get_supported_cpuid(s
, 0xC0000000, 0, R_EAX
);
825 if (eax
>= 0xC0000001) {
826 /* Support VIA max extended level */
827 x86_cpu_def
->xlevel2
= eax
;
828 host_cpuid(0xC0000001, 0, &eax
, &ebx
, &ecx
, &edx
);
829 x86_cpu_def
->ext4_features
=
830 kvm_arch_get_supported_cpuid(s
, 0xC0000001, 0, R_EDX
);
835 * Every SVM feature requires emulation support in KVM - so we can't just
836 * read the host features here. KVM might even support SVM features not
837 * available on the host hardware. Just set all bits and mask out the
838 * unsupported ones later.
840 x86_cpu_def
->svm_features
= -1;
843 static int unavailable_host_feature(struct model_features_t
*f
, uint32_t mask
)
847 for (i
= 0; i
< 32; ++i
)
849 fprintf(stderr
, "warning: host cpuid %04x_%04x lacks requested"
850 " flag '%s' [0x%08x]\n",
851 f
->cpuid
>> 16, f
->cpuid
& 0xffff,
852 f
->flag_names
[i
] ? f
->flag_names
[i
] : "[reserved]", mask
);
858 /* best effort attempt to inform user requested cpu flags aren't making
859 * their way to the guest. Note: ft[].check_feat ideally should be
860 * specified via a guest_def field to suppress report of extraneous flags.
862 * This function may be called only if KVM is enabled.
864 static int kvm_check_features_against_host(x86_def_t
*guest_def
)
869 struct model_features_t ft
[] = {
870 {&guest_def
->features
, &host_def
.features
,
871 ~0, feature_name
, 0x00000000},
872 {&guest_def
->ext_features
, &host_def
.ext_features
,
873 ~CPUID_EXT_HYPERVISOR
, ext_feature_name
, 0x00000001},
874 {&guest_def
->ext2_features
, &host_def
.ext2_features
,
875 ~PPRO_FEATURES
, ext2_feature_name
, 0x80000000},
876 {&guest_def
->ext3_features
, &host_def
.ext3_features
,
877 ~CPUID_EXT3_SVM
, ext3_feature_name
, 0x80000001}};
879 assert(kvm_enabled());
881 kvm_cpu_fill_host(&host_def
);
882 for (rv
= 0, i
= 0; i
< ARRAY_SIZE(ft
); ++i
)
883 for (mask
= 1; mask
; mask
<<= 1)
884 if (ft
[i
].check_feat
& mask
&& *ft
[i
].guest_feat
& mask
&&
885 !(*ft
[i
].host_feat
& mask
)) {
886 unavailable_host_feature(&ft
[i
], mask
);
892 static void x86_cpuid_version_get_family(Object
*obj
, Visitor
*v
, void *opaque
,
893 const char *name
, Error
**errp
)
895 X86CPU
*cpu
= X86_CPU(obj
);
896 CPUX86State
*env
= &cpu
->env
;
899 value
= (env
->cpuid_version
>> 8) & 0xf;
901 value
+= (env
->cpuid_version
>> 20) & 0xff;
903 visit_type_int(v
, &value
, name
, errp
);
906 static void x86_cpuid_version_set_family(Object
*obj
, Visitor
*v
, void *opaque
,
907 const char *name
, Error
**errp
)
909 X86CPU
*cpu
= X86_CPU(obj
);
910 CPUX86State
*env
= &cpu
->env
;
911 const int64_t min
= 0;
912 const int64_t max
= 0xff + 0xf;
915 visit_type_int(v
, &value
, name
, errp
);
916 if (error_is_set(errp
)) {
919 if (value
< min
|| value
> max
) {
920 error_set(errp
, QERR_PROPERTY_VALUE_OUT_OF_RANGE
, "",
921 name
? name
: "null", value
, min
, max
);
925 env
->cpuid_version
&= ~0xff00f00;
927 env
->cpuid_version
|= 0xf00 | ((value
- 0x0f) << 20);
929 env
->cpuid_version
|= value
<< 8;
933 static void x86_cpuid_version_get_model(Object
*obj
, Visitor
*v
, void *opaque
,
934 const char *name
, Error
**errp
)
936 X86CPU
*cpu
= X86_CPU(obj
);
937 CPUX86State
*env
= &cpu
->env
;
940 value
= (env
->cpuid_version
>> 4) & 0xf;
941 value
|= ((env
->cpuid_version
>> 16) & 0xf) << 4;
942 visit_type_int(v
, &value
, name
, errp
);
945 static void x86_cpuid_version_set_model(Object
*obj
, Visitor
*v
, void *opaque
,
946 const char *name
, Error
**errp
)
948 X86CPU
*cpu
= X86_CPU(obj
);
949 CPUX86State
*env
= &cpu
->env
;
950 const int64_t min
= 0;
951 const int64_t max
= 0xff;
954 visit_type_int(v
, &value
, name
, errp
);
955 if (error_is_set(errp
)) {
958 if (value
< min
|| value
> max
) {
959 error_set(errp
, QERR_PROPERTY_VALUE_OUT_OF_RANGE
, "",
960 name
? name
: "null", value
, min
, max
);
964 env
->cpuid_version
&= ~0xf00f0;
965 env
->cpuid_version
|= ((value
& 0xf) << 4) | ((value
>> 4) << 16);
968 static void x86_cpuid_version_get_stepping(Object
*obj
, Visitor
*v
,
969 void *opaque
, const char *name
,
972 X86CPU
*cpu
= X86_CPU(obj
);
973 CPUX86State
*env
= &cpu
->env
;
976 value
= env
->cpuid_version
& 0xf;
977 visit_type_int(v
, &value
, name
, errp
);
980 static void x86_cpuid_version_set_stepping(Object
*obj
, Visitor
*v
,
981 void *opaque
, const char *name
,
984 X86CPU
*cpu
= X86_CPU(obj
);
985 CPUX86State
*env
= &cpu
->env
;
986 const int64_t min
= 0;
987 const int64_t max
= 0xf;
990 visit_type_int(v
, &value
, name
, errp
);
991 if (error_is_set(errp
)) {
994 if (value
< min
|| value
> max
) {
995 error_set(errp
, QERR_PROPERTY_VALUE_OUT_OF_RANGE
, "",
996 name
? name
: "null", value
, min
, max
);
1000 env
->cpuid_version
&= ~0xf;
1001 env
->cpuid_version
|= value
& 0xf;
1004 static void x86_cpuid_get_level(Object
*obj
, Visitor
*v
, void *opaque
,
1005 const char *name
, Error
**errp
)
1007 X86CPU
*cpu
= X86_CPU(obj
);
1009 visit_type_uint32(v
, &cpu
->env
.cpuid_level
, name
, errp
);
1012 static void x86_cpuid_set_level(Object
*obj
, Visitor
*v
, void *opaque
,
1013 const char *name
, Error
**errp
)
1015 X86CPU
*cpu
= X86_CPU(obj
);
1017 visit_type_uint32(v
, &cpu
->env
.cpuid_level
, name
, errp
);
1020 static void x86_cpuid_get_xlevel(Object
*obj
, Visitor
*v
, void *opaque
,
1021 const char *name
, Error
**errp
)
1023 X86CPU
*cpu
= X86_CPU(obj
);
1025 visit_type_uint32(v
, &cpu
->env
.cpuid_xlevel
, name
, errp
);
1028 static void x86_cpuid_set_xlevel(Object
*obj
, Visitor
*v
, void *opaque
,
1029 const char *name
, Error
**errp
)
1031 X86CPU
*cpu
= X86_CPU(obj
);
1033 visit_type_uint32(v
, &cpu
->env
.cpuid_xlevel
, name
, errp
);
1036 static char *x86_cpuid_get_vendor(Object
*obj
, Error
**errp
)
1038 X86CPU
*cpu
= X86_CPU(obj
);
1039 CPUX86State
*env
= &cpu
->env
;
1043 value
= (char *)g_malloc(12 + 1);
1044 for (i
= 0; i
< 4; i
++) {
1045 value
[i
] = env
->cpuid_vendor1
>> (8 * i
);
1046 value
[i
+ 4] = env
->cpuid_vendor2
>> (8 * i
);
1047 value
[i
+ 8] = env
->cpuid_vendor3
>> (8 * i
);
1053 static void x86_cpuid_set_vendor(Object
*obj
, const char *value
,
1056 X86CPU
*cpu
= X86_CPU(obj
);
1057 CPUX86State
*env
= &cpu
->env
;
1060 if (strlen(value
) != 12) {
1061 error_set(errp
, QERR_PROPERTY_VALUE_BAD
, "",
1066 env
->cpuid_vendor1
= 0;
1067 env
->cpuid_vendor2
= 0;
1068 env
->cpuid_vendor3
= 0;
1069 for (i
= 0; i
< 4; i
++) {
1070 env
->cpuid_vendor1
|= ((uint8_t)value
[i
]) << (8 * i
);
1071 env
->cpuid_vendor2
|= ((uint8_t)value
[i
+ 4]) << (8 * i
);
1072 env
->cpuid_vendor3
|= ((uint8_t)value
[i
+ 8]) << (8 * i
);
1074 env
->cpuid_vendor_override
= 1;
1077 static char *x86_cpuid_get_model_id(Object
*obj
, Error
**errp
)
1079 X86CPU
*cpu
= X86_CPU(obj
);
1080 CPUX86State
*env
= &cpu
->env
;
1084 value
= g_malloc(48 + 1);
1085 for (i
= 0; i
< 48; i
++) {
1086 value
[i
] = env
->cpuid_model
[i
>> 2] >> (8 * (i
& 3));
1092 static void x86_cpuid_set_model_id(Object
*obj
, const char *model_id
,
1095 X86CPU
*cpu
= X86_CPU(obj
);
1096 CPUX86State
*env
= &cpu
->env
;
1099 if (model_id
== NULL
) {
1102 len
= strlen(model_id
);
1103 memset(env
->cpuid_model
, 0, 48);
1104 for (i
= 0; i
< 48; i
++) {
1108 c
= (uint8_t)model_id
[i
];
1110 env
->cpuid_model
[i
>> 2] |= c
<< (8 * (i
& 3));
1114 static void x86_cpuid_get_tsc_freq(Object
*obj
, Visitor
*v
, void *opaque
,
1115 const char *name
, Error
**errp
)
1117 X86CPU
*cpu
= X86_CPU(obj
);
1120 value
= cpu
->env
.tsc_khz
* 1000;
1121 visit_type_int(v
, &value
, name
, errp
);
1124 static void x86_cpuid_set_tsc_freq(Object
*obj
, Visitor
*v
, void *opaque
,
1125 const char *name
, Error
**errp
)
1127 X86CPU
*cpu
= X86_CPU(obj
);
1128 const int64_t min
= 0;
1129 const int64_t max
= INT64_MAX
;
1132 visit_type_int(v
, &value
, name
, errp
);
1133 if (error_is_set(errp
)) {
1136 if (value
< min
|| value
> max
) {
1137 error_set(errp
, QERR_PROPERTY_VALUE_OUT_OF_RANGE
, "",
1138 name
? name
: "null", value
, min
, max
);
1142 cpu
->env
.tsc_khz
= value
/ 1000;
1145 static int cpu_x86_find_by_name(x86_def_t
*x86_cpu_def
, const char *cpu_model
)
1150 char *s
= g_strdup(cpu_model
);
1151 char *featurestr
, *name
= strtok(s
, ",");
1152 /* Features to be added*/
1153 uint32_t plus_features
= 0, plus_ext_features
= 0;
1154 uint32_t plus_ext2_features
= 0, plus_ext3_features
= 0;
1155 uint32_t plus_kvm_features
= kvm_default_features
, plus_svm_features
= 0;
1156 uint32_t plus_7_0_ebx_features
= 0;
1157 /* Features to be removed */
1158 uint32_t minus_features
= 0, minus_ext_features
= 0;
1159 uint32_t minus_ext2_features
= 0, minus_ext3_features
= 0;
1160 uint32_t minus_kvm_features
= 0, minus_svm_features
= 0;
1161 uint32_t minus_7_0_ebx_features
= 0;
1164 for (def
= x86_defs
; def
; def
= def
->next
)
1165 if (name
&& !strcmp(name
, def
->name
))
1167 if (kvm_enabled() && name
&& strcmp(name
, "host") == 0) {
1168 kvm_cpu_fill_host(x86_cpu_def
);
1172 memcpy(x86_cpu_def
, def
, sizeof(*def
));
1175 add_flagname_to_bitmaps("hypervisor", &plus_features
,
1176 &plus_ext_features
, &plus_ext2_features
, &plus_ext3_features
,
1177 &plus_kvm_features
, &plus_svm_features
, &plus_7_0_ebx_features
);
1179 featurestr
= strtok(NULL
, ",");
1181 while (featurestr
) {
1183 if (featurestr
[0] == '+') {
1184 add_flagname_to_bitmaps(featurestr
+ 1, &plus_features
,
1185 &plus_ext_features
, &plus_ext2_features
,
1186 &plus_ext3_features
, &plus_kvm_features
,
1187 &plus_svm_features
, &plus_7_0_ebx_features
);
1188 } else if (featurestr
[0] == '-') {
1189 add_flagname_to_bitmaps(featurestr
+ 1, &minus_features
,
1190 &minus_ext_features
, &minus_ext2_features
,
1191 &minus_ext3_features
, &minus_kvm_features
,
1192 &minus_svm_features
, &minus_7_0_ebx_features
);
1193 } else if ((val
= strchr(featurestr
, '='))) {
1195 if (!strcmp(featurestr
, "family")) {
1197 numvalue
= strtoul(val
, &err
, 0);
1198 if (!*val
|| *err
|| numvalue
> 0xff + 0xf) {
1199 fprintf(stderr
, "bad numerical value %s\n", val
);
1202 x86_cpu_def
->family
= numvalue
;
1203 } else if (!strcmp(featurestr
, "model")) {
1205 numvalue
= strtoul(val
, &err
, 0);
1206 if (!*val
|| *err
|| numvalue
> 0xff) {
1207 fprintf(stderr
, "bad numerical value %s\n", val
);
1210 x86_cpu_def
->model
= numvalue
;
1211 } else if (!strcmp(featurestr
, "stepping")) {
1213 numvalue
= strtoul(val
, &err
, 0);
1214 if (!*val
|| *err
|| numvalue
> 0xf) {
1215 fprintf(stderr
, "bad numerical value %s\n", val
);
1218 x86_cpu_def
->stepping
= numvalue
;
1219 } else if (!strcmp(featurestr
, "level")) {
1221 numvalue
= strtoul(val
, &err
, 0);
1222 if (!*val
|| *err
) {
1223 fprintf(stderr
, "bad numerical value %s\n", val
);
1226 x86_cpu_def
->level
= numvalue
;
1227 } else if (!strcmp(featurestr
, "xlevel")) {
1229 numvalue
= strtoul(val
, &err
, 0);
1230 if (!*val
|| *err
) {
1231 fprintf(stderr
, "bad numerical value %s\n", val
);
1234 if (numvalue
< 0x80000000) {
1235 numvalue
+= 0x80000000;
1237 x86_cpu_def
->xlevel
= numvalue
;
1238 } else if (!strcmp(featurestr
, "vendor")) {
1239 if (strlen(val
) != 12) {
1240 fprintf(stderr
, "vendor string must be 12 chars long\n");
1243 x86_cpu_def
->vendor1
= 0;
1244 x86_cpu_def
->vendor2
= 0;
1245 x86_cpu_def
->vendor3
= 0;
1246 for(i
= 0; i
< 4; i
++) {
1247 x86_cpu_def
->vendor1
|= ((uint8_t)val
[i
]) << (8 * i
);
1248 x86_cpu_def
->vendor2
|= ((uint8_t)val
[i
+ 4]) << (8 * i
);
1249 x86_cpu_def
->vendor3
|= ((uint8_t)val
[i
+ 8]) << (8 * i
);
1251 x86_cpu_def
->vendor_override
= 1;
1252 } else if (!strcmp(featurestr
, "model_id")) {
1253 pstrcpy(x86_cpu_def
->model_id
, sizeof(x86_cpu_def
->model_id
),
1255 } else if (!strcmp(featurestr
, "tsc_freq")) {
1259 tsc_freq
= strtosz_suffix_unit(val
, &err
,
1260 STRTOSZ_DEFSUFFIX_B
, 1000);
1261 if (tsc_freq
< 0 || *err
) {
1262 fprintf(stderr
, "bad numerical value %s\n", val
);
1265 x86_cpu_def
->tsc_khz
= tsc_freq
/ 1000;
1266 } else if (!strcmp(featurestr
, "hv_spinlocks")) {
1268 numvalue
= strtoul(val
, &err
, 0);
1269 if (!*val
|| *err
) {
1270 fprintf(stderr
, "bad numerical value %s\n", val
);
1273 hyperv_set_spinlock_retries(numvalue
);
1275 fprintf(stderr
, "unrecognized feature %s\n", featurestr
);
1278 } else if (!strcmp(featurestr
, "check")) {
1280 } else if (!strcmp(featurestr
, "enforce")) {
1281 check_cpuid
= enforce_cpuid
= 1;
1282 } else if (!strcmp(featurestr
, "hv_relaxed")) {
1283 hyperv_enable_relaxed_timing(true);
1284 } else if (!strcmp(featurestr
, "hv_vapic")) {
1285 hyperv_enable_vapic_recommended(true);
1287 fprintf(stderr
, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr
);
1290 featurestr
= strtok(NULL
, ",");
1292 x86_cpu_def
->features
|= plus_features
;
1293 x86_cpu_def
->ext_features
|= plus_ext_features
;
1294 x86_cpu_def
->ext2_features
|= plus_ext2_features
;
1295 x86_cpu_def
->ext3_features
|= plus_ext3_features
;
1296 x86_cpu_def
->kvm_features
|= plus_kvm_features
;
1297 x86_cpu_def
->svm_features
|= plus_svm_features
;
1298 x86_cpu_def
->cpuid_7_0_ebx_features
|= plus_7_0_ebx_features
;
1299 x86_cpu_def
->features
&= ~minus_features
;
1300 x86_cpu_def
->ext_features
&= ~minus_ext_features
;
1301 x86_cpu_def
->ext2_features
&= ~minus_ext2_features
;
1302 x86_cpu_def
->ext3_features
&= ~minus_ext3_features
;
1303 x86_cpu_def
->kvm_features
&= ~minus_kvm_features
;
1304 x86_cpu_def
->svm_features
&= ~minus_svm_features
;
1305 x86_cpu_def
->cpuid_7_0_ebx_features
&= ~minus_7_0_ebx_features
;
1306 if (check_cpuid
&& kvm_enabled()) {
1307 if (kvm_check_features_against_host(x86_cpu_def
) && enforce_cpuid
)
1310 if (x86_cpu_def
->cpuid_7_0_ebx_features
&& x86_cpu_def
->level
< 7) {
1311 x86_cpu_def
->level
= 7;
1321 /* generate a composite string into buf of all cpuid names in featureset
1322 * selected by fbits. indicate truncation at bufsize in the event of overflow.
1323 * if flags, suppress names undefined in featureset.
1325 static void listflags(char *buf
, int bufsize
, uint32_t fbits
,
1326 const char **featureset
, uint32_t flags
)
1328 const char **p
= &featureset
[31];
1332 b
= 4 <= bufsize
? buf
+ (bufsize
-= 3) - 1 : NULL
;
1334 for (q
= buf
, bit
= 31; fbits
&& bufsize
; --p
, fbits
&= ~(1 << bit
), --bit
)
1335 if (fbits
& 1 << bit
&& (*p
|| !flags
)) {
1337 nc
= snprintf(q
, bufsize
, "%s%s", q
== buf
? "" : " ", *p
);
1339 nc
= snprintf(q
, bufsize
, "%s[%d]", q
== buf
? "" : " ", bit
);
1340 if (bufsize
<= nc
) {
1342 memcpy(b
, "...", sizeof("..."));
1351 /* generate CPU information. */
1352 void x86_cpu_list(FILE *f
, fprintf_function cpu_fprintf
)
1357 for (def
= x86_defs
; def
; def
= def
->next
) {
1358 snprintf(buf
, sizeof(buf
), "%s", def
->name
);
1359 (*cpu_fprintf
)(f
, "x86 %16s %-48s\n", buf
, def
->model_id
);
1361 if (kvm_enabled()) {
1362 (*cpu_fprintf
)(f
, "x86 %16s\n", "[host]");
1364 (*cpu_fprintf
)(f
, "\nRecognized CPUID flags:\n");
1365 listflags(buf
, sizeof(buf
), (uint32_t)~0, feature_name
, 1);
1366 (*cpu_fprintf
)(f
, " %s\n", buf
);
1367 listflags(buf
, sizeof(buf
), (uint32_t)~0, ext_feature_name
, 1);
1368 (*cpu_fprintf
)(f
, " %s\n", buf
);
1369 listflags(buf
, sizeof(buf
), (uint32_t)~0, ext2_feature_name
, 1);
1370 (*cpu_fprintf
)(f
, " %s\n", buf
);
1371 listflags(buf
, sizeof(buf
), (uint32_t)~0, ext3_feature_name
, 1);
1372 (*cpu_fprintf
)(f
, " %s\n", buf
);
1375 CpuDefinitionInfoList
*arch_query_cpu_definitions(Error
**errp
)
1377 CpuDefinitionInfoList
*cpu_list
= NULL
;
1380 for (def
= x86_defs
; def
; def
= def
->next
) {
1381 CpuDefinitionInfoList
*entry
;
1382 CpuDefinitionInfo
*info
;
1384 info
= g_malloc0(sizeof(*info
));
1385 info
->name
= g_strdup(def
->name
);
1387 entry
= g_malloc0(sizeof(*entry
));
1388 entry
->value
= info
;
1389 entry
->next
= cpu_list
;
1397 static void filter_features_for_kvm(X86CPU
*cpu
)
1399 CPUX86State
*env
= &cpu
->env
;
1400 KVMState
*s
= kvm_state
;
1402 env
->cpuid_features
&=
1403 kvm_arch_get_supported_cpuid(s
, 1, 0, R_EDX
);
1404 env
->cpuid_ext_features
&=
1405 kvm_arch_get_supported_cpuid(s
, 1, 0, R_ECX
);
1406 env
->cpuid_ext2_features
&=
1407 kvm_arch_get_supported_cpuid(s
, 0x80000001, 0, R_EDX
);
1408 env
->cpuid_ext3_features
&=
1409 kvm_arch_get_supported_cpuid(s
, 0x80000001, 0, R_ECX
);
1410 env
->cpuid_svm_features
&=
1411 kvm_arch_get_supported_cpuid(s
, 0x8000000A, 0, R_EDX
);
1412 env
->cpuid_7_0_ebx_features
&=
1413 kvm_arch_get_supported_cpuid(s
, 7, 0, R_EBX
);
1414 env
->cpuid_kvm_features
&=
1415 kvm_arch_get_supported_cpuid(s
, KVM_CPUID_FEATURES
, 0, R_EAX
);
1416 env
->cpuid_ext4_features
&=
1417 kvm_arch_get_supported_cpuid(s
, 0xC0000001, 0, R_EDX
);
1422 int cpu_x86_register(X86CPU
*cpu
, const char *cpu_model
)
1424 CPUX86State
*env
= &cpu
->env
;
1425 x86_def_t def1
, *def
= &def1
;
1426 Error
*error
= NULL
;
1428 memset(def
, 0, sizeof(*def
));
1430 if (cpu_x86_find_by_name(def
, cpu_model
) < 0)
1433 env
->cpuid_vendor1
= def
->vendor1
;
1434 env
->cpuid_vendor2
= def
->vendor2
;
1435 env
->cpuid_vendor3
= def
->vendor3
;
1437 env
->cpuid_vendor1
= CPUID_VENDOR_INTEL_1
;
1438 env
->cpuid_vendor2
= CPUID_VENDOR_INTEL_2
;
1439 env
->cpuid_vendor3
= CPUID_VENDOR_INTEL_3
;
1441 env
->cpuid_vendor_override
= def
->vendor_override
;
1442 object_property_set_int(OBJECT(cpu
), def
->level
, "level", &error
);
1443 object_property_set_int(OBJECT(cpu
), def
->family
, "family", &error
);
1444 object_property_set_int(OBJECT(cpu
), def
->model
, "model", &error
);
1445 object_property_set_int(OBJECT(cpu
), def
->stepping
, "stepping", &error
);
1446 env
->cpuid_features
= def
->features
;
1447 env
->cpuid_ext_features
= def
->ext_features
;
1448 env
->cpuid_ext2_features
= def
->ext2_features
;
1449 env
->cpuid_ext3_features
= def
->ext3_features
;
1450 object_property_set_int(OBJECT(cpu
), def
->xlevel
, "xlevel", &error
);
1451 env
->cpuid_kvm_features
= def
->kvm_features
;
1452 env
->cpuid_svm_features
= def
->svm_features
;
1453 env
->cpuid_ext4_features
= def
->ext4_features
;
1454 env
->cpuid_7_0_ebx_features
= def
->cpuid_7_0_ebx_features
;
1455 env
->cpuid_xlevel2
= def
->xlevel2
;
1456 object_property_set_int(OBJECT(cpu
), (int64_t)def
->tsc_khz
* 1000,
1457 "tsc-frequency", &error
);
1459 /* On AMD CPUs, some CPUID[8000_0001].EDX bits must match the bits on
1462 if (env
->cpuid_vendor1
== CPUID_VENDOR_AMD_1
&&
1463 env
->cpuid_vendor2
== CPUID_VENDOR_AMD_2
&&
1464 env
->cpuid_vendor3
== CPUID_VENDOR_AMD_3
) {
1465 env
->cpuid_ext2_features
&= ~CPUID_EXT2_AMD_ALIASES
;
1466 env
->cpuid_ext2_features
|= (def
->features
& CPUID_EXT2_AMD_ALIASES
);
1469 if (!kvm_enabled()) {
1470 env
->cpuid_features
&= TCG_FEATURES
;
1471 env
->cpuid_ext_features
&= TCG_EXT_FEATURES
;
1472 env
->cpuid_ext2_features
&= (TCG_EXT2_FEATURES
1473 #ifdef TARGET_X86_64
1474 | CPUID_EXT2_SYSCALL
| CPUID_EXT2_LM
1477 env
->cpuid_ext3_features
&= TCG_EXT3_FEATURES
;
1478 env
->cpuid_svm_features
&= TCG_SVM_FEATURES
;
1481 filter_features_for_kvm(cpu
);
1484 object_property_set_str(OBJECT(cpu
), def
->model_id
, "model-id", &error
);
1486 fprintf(stderr
, "%s\n", error_get_pretty(error
));
1493 #if !defined(CONFIG_USER_ONLY)
1495 void cpu_clear_apic_feature(CPUX86State
*env
)
1497 env
->cpuid_features
&= ~CPUID_APIC
;
1500 #endif /* !CONFIG_USER_ONLY */
1502 /* Initialize list of CPU models, filling some non-static fields if necessary
1504 void x86_cpudef_setup(void)
1507 static const char *model_with_versions
[] = { "qemu32", "qemu64", "athlon" };
1509 for (i
= 0; i
< ARRAY_SIZE(builtin_x86_defs
); ++i
) {
1510 x86_def_t
*def
= &builtin_x86_defs
[i
];
1511 def
->next
= x86_defs
;
1513 /* Look for specific "cpudef" models that */
1514 /* have the QEMU version in .model_id */
1515 for (j
= 0; j
< ARRAY_SIZE(model_with_versions
); j
++) {
1516 if (strcmp(model_with_versions
[j
], def
->name
) == 0) {
1517 pstrcpy(def
->model_id
, sizeof(def
->model_id
),
1518 "QEMU Virtual CPU version ");
1519 pstrcat(def
->model_id
, sizeof(def
->model_id
),
1520 qemu_get_version());
1529 static void get_cpuid_vendor(CPUX86State
*env
, uint32_t *ebx
,
1530 uint32_t *ecx
, uint32_t *edx
)
1532 *ebx
= env
->cpuid_vendor1
;
1533 *edx
= env
->cpuid_vendor2
;
1534 *ecx
= env
->cpuid_vendor3
;
1536 /* sysenter isn't supported on compatibility mode on AMD, syscall
1537 * isn't supported in compatibility mode on Intel.
1538 * Normally we advertise the actual cpu vendor, but you can override
1539 * this if you want to use KVM's sysenter/syscall emulation
1540 * in compatibility mode and when doing cross vendor migration
1542 if (kvm_enabled() && ! env
->cpuid_vendor_override
) {
1543 host_cpuid(0, 0, NULL
, ebx
, ecx
, edx
);
1547 void cpu_x86_cpuid(CPUX86State
*env
, uint32_t index
, uint32_t count
,
1548 uint32_t *eax
, uint32_t *ebx
,
1549 uint32_t *ecx
, uint32_t *edx
)
1551 /* test if maximum index reached */
1552 if (index
& 0x80000000) {
1553 if (index
> env
->cpuid_xlevel
) {
1554 if (env
->cpuid_xlevel2
> 0) {
1555 /* Handle the Centaur's CPUID instruction. */
1556 if (index
> env
->cpuid_xlevel2
) {
1557 index
= env
->cpuid_xlevel2
;
1558 } else if (index
< 0xC0000000) {
1559 index
= env
->cpuid_xlevel
;
1562 index
= env
->cpuid_xlevel
;
1566 if (index
> env
->cpuid_level
)
1567 index
= env
->cpuid_level
;
1572 *eax
= env
->cpuid_level
;
1573 get_cpuid_vendor(env
, ebx
, ecx
, edx
);
1576 *eax
= env
->cpuid_version
;
1577 *ebx
= (env
->cpuid_apic_id
<< 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
1578 *ecx
= env
->cpuid_ext_features
;
1579 *edx
= env
->cpuid_features
;
1580 if (env
->nr_cores
* env
->nr_threads
> 1) {
1581 *ebx
|= (env
->nr_cores
* env
->nr_threads
) << 16;
1582 *edx
|= 1 << 28; /* HTT bit */
1586 /* cache info: needed for Pentium Pro compatibility */
1593 /* cache info: needed for Core compatibility */
1594 if (env
->nr_cores
> 1) {
1595 *eax
= (env
->nr_cores
- 1) << 26;
1600 case 0: /* L1 dcache info */
1606 case 1: /* L1 icache info */
1612 case 2: /* L2 cache info */
1614 if (env
->nr_threads
> 1) {
1615 *eax
|= (env
->nr_threads
- 1) << 14;
1621 default: /* end of info */
1630 /* mwait info: needed for Core compatibility */
1631 *eax
= 0; /* Smallest monitor-line size in bytes */
1632 *ebx
= 0; /* Largest monitor-line size in bytes */
1633 *ecx
= CPUID_MWAIT_EMX
| CPUID_MWAIT_IBE
;
1637 /* Thermal and Power Leaf */
1644 /* Structured Extended Feature Flags Enumeration Leaf */
1646 *eax
= 0; /* Maximum ECX value for sub-leaves */
1647 *ebx
= env
->cpuid_7_0_ebx_features
; /* Feature flags */
1648 *ecx
= 0; /* Reserved */
1649 *edx
= 0; /* Reserved */
1658 /* Direct Cache Access Information Leaf */
1659 *eax
= 0; /* Bits 0-31 in DCA_CAP MSR */
1665 /* Architectural Performance Monitoring Leaf */
1666 if (kvm_enabled()) {
1667 KVMState
*s
= env
->kvm_state
;
1669 *eax
= kvm_arch_get_supported_cpuid(s
, 0xA, count
, R_EAX
);
1670 *ebx
= kvm_arch_get_supported_cpuid(s
, 0xA, count
, R_EBX
);
1671 *ecx
= kvm_arch_get_supported_cpuid(s
, 0xA, count
, R_ECX
);
1672 *edx
= kvm_arch_get_supported_cpuid(s
, 0xA, count
, R_EDX
);
1681 /* Processor Extended State */
1682 if (!(env
->cpuid_ext_features
& CPUID_EXT_XSAVE
)) {
1689 if (kvm_enabled()) {
1690 KVMState
*s
= env
->kvm_state
;
1692 *eax
= kvm_arch_get_supported_cpuid(s
, 0xd, count
, R_EAX
);
1693 *ebx
= kvm_arch_get_supported_cpuid(s
, 0xd, count
, R_EBX
);
1694 *ecx
= kvm_arch_get_supported_cpuid(s
, 0xd, count
, R_ECX
);
1695 *edx
= kvm_arch_get_supported_cpuid(s
, 0xd, count
, R_EDX
);
1704 *eax
= env
->cpuid_xlevel
;
1705 *ebx
= env
->cpuid_vendor1
;
1706 *edx
= env
->cpuid_vendor2
;
1707 *ecx
= env
->cpuid_vendor3
;
1710 *eax
= env
->cpuid_version
;
1712 *ecx
= env
->cpuid_ext3_features
;
1713 *edx
= env
->cpuid_ext2_features
;
1715 /* The Linux kernel checks for the CMPLegacy bit and
1716 * discards multiple thread information if it is set.
1717 * So dont set it here for Intel to make Linux guests happy.
1719 if (env
->nr_cores
* env
->nr_threads
> 1) {
1720 uint32_t tebx
, tecx
, tedx
;
1721 get_cpuid_vendor(env
, &tebx
, &tecx
, &tedx
);
1722 if (tebx
!= CPUID_VENDOR_INTEL_1
||
1723 tedx
!= CPUID_VENDOR_INTEL_2
||
1724 tecx
!= CPUID_VENDOR_INTEL_3
) {
1725 *ecx
|= 1 << 1; /* CmpLegacy bit */
1732 *eax
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 0];
1733 *ebx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 1];
1734 *ecx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 2];
1735 *edx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 3];
1738 /* cache info (L1 cache) */
1745 /* cache info (L2 cache) */
1752 /* virtual & phys address size in low 2 bytes. */
1753 /* XXX: This value must match the one used in the MMU code. */
1754 if (env
->cpuid_ext2_features
& CPUID_EXT2_LM
) {
1755 /* 64 bit processor */
1756 /* XXX: The physical address space is limited to 42 bits in exec.c. */
1757 *eax
= 0x00003028; /* 48 bits virtual, 40 bits physical */
1759 if (env
->cpuid_features
& CPUID_PSE36
)
1760 *eax
= 0x00000024; /* 36 bits physical */
1762 *eax
= 0x00000020; /* 32 bits physical */
1767 if (env
->nr_cores
* env
->nr_threads
> 1) {
1768 *ecx
|= (env
->nr_cores
* env
->nr_threads
) - 1;
1772 if (env
->cpuid_ext3_features
& CPUID_EXT3_SVM
) {
1773 *eax
= 0x00000001; /* SVM Revision */
1774 *ebx
= 0x00000010; /* nr of ASIDs */
1776 *edx
= env
->cpuid_svm_features
; /* optional features */
1785 *eax
= env
->cpuid_xlevel2
;
1791 /* Support for VIA CPU's CPUID instruction */
1792 *eax
= env
->cpuid_version
;
1795 *edx
= env
->cpuid_ext4_features
;
1800 /* Reserved for the future, and now filled with zero */
1807 /* reserved values: zero */
1816 /* CPUClass::reset() */
1817 static void x86_cpu_reset(CPUState
*s
)
1819 X86CPU
*cpu
= X86_CPU(s
);
1820 X86CPUClass
*xcc
= X86_CPU_GET_CLASS(cpu
);
1821 CPUX86State
*env
= &cpu
->env
;
1824 if (qemu_loglevel_mask(CPU_LOG_RESET
)) {
1825 qemu_log("CPU Reset (CPU %d)\n", env
->cpu_index
);
1826 log_cpu_state(env
, CPU_DUMP_FPU
| CPU_DUMP_CCOP
);
1829 xcc
->parent_reset(s
);
1832 memset(env
, 0, offsetof(CPUX86State
, breakpoints
));
1836 env
->old_exception
= -1;
1838 /* init to reset state */
1840 #ifdef CONFIG_SOFTMMU
1841 env
->hflags
|= HF_SOFTMMU_MASK
;
1843 env
->hflags2
|= HF2_GIF_MASK
;
1845 cpu_x86_update_cr0(env
, 0x60000010);
1846 env
->a20_mask
= ~0x0;
1847 env
->smbase
= 0x30000;
1849 env
->idt
.limit
= 0xffff;
1850 env
->gdt
.limit
= 0xffff;
1851 env
->ldt
.limit
= 0xffff;
1852 env
->ldt
.flags
= DESC_P_MASK
| (2 << DESC_TYPE_SHIFT
);
1853 env
->tr
.limit
= 0xffff;
1854 env
->tr
.flags
= DESC_P_MASK
| (11 << DESC_TYPE_SHIFT
);
1856 cpu_x86_load_seg_cache(env
, R_CS
, 0xf000, 0xffff0000, 0xffff,
1857 DESC_P_MASK
| DESC_S_MASK
| DESC_CS_MASK
|
1858 DESC_R_MASK
| DESC_A_MASK
);
1859 cpu_x86_load_seg_cache(env
, R_DS
, 0, 0, 0xffff,
1860 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
1862 cpu_x86_load_seg_cache(env
, R_ES
, 0, 0, 0xffff,
1863 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
1865 cpu_x86_load_seg_cache(env
, R_SS
, 0, 0, 0xffff,
1866 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
1868 cpu_x86_load_seg_cache(env
, R_FS
, 0, 0, 0xffff,
1869 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
1871 cpu_x86_load_seg_cache(env
, R_GS
, 0, 0, 0xffff,
1872 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
1876 env
->regs
[R_EDX
] = env
->cpuid_version
;
1881 for (i
= 0; i
< 8; i
++) {
1886 env
->mxcsr
= 0x1f80;
1888 env
->pat
= 0x0007040600070406ULL
;
1889 env
->msr_ia32_misc_enable
= MSR_IA32_MISC_ENABLE_DEFAULT
;
1891 memset(env
->dr
, 0, sizeof(env
->dr
));
1892 env
->dr
[6] = DR6_FIXED_1
;
1893 env
->dr
[7] = DR7_FIXED_1
;
1894 cpu_breakpoint_remove_all(env
, BP_CPU
);
1895 cpu_watchpoint_remove_all(env
, BP_CPU
);
1897 #if !defined(CONFIG_USER_ONLY)
1898 /* We hard-wire the BSP to the first CPU. */
1899 if (env
->cpu_index
== 0) {
1900 apic_designate_bsp(env
->apic_state
);
1903 env
->halted
= !cpu_is_bsp(cpu
);
1907 #ifndef CONFIG_USER_ONLY
1908 bool cpu_is_bsp(X86CPU
*cpu
)
1910 return cpu_get_apic_base(cpu
->env
.apic_state
) & MSR_IA32_APICBASE_BSP
;
1913 /* TODO: remove me, when reset over QOM tree is implemented */
1914 static void x86_cpu_machine_reset_cb(void *opaque
)
1916 X86CPU
*cpu
= opaque
;
1917 cpu_reset(CPU(cpu
));
1921 static void mce_init(X86CPU
*cpu
)
1923 CPUX86State
*cenv
= &cpu
->env
;
1926 if (((cenv
->cpuid_version
>> 8) & 0xf) >= 6
1927 && (cenv
->cpuid_features
& (CPUID_MCE
| CPUID_MCA
)) ==
1928 (CPUID_MCE
| CPUID_MCA
)) {
1929 cenv
->mcg_cap
= MCE_CAP_DEF
| MCE_BANKS_DEF
;
1930 cenv
->mcg_ctl
= ~(uint64_t)0;
1931 for (bank
= 0; bank
< MCE_BANKS_DEF
; bank
++) {
1932 cenv
->mce_banks
[bank
* 4] = ~(uint64_t)0;
1937 #define MSI_ADDR_BASE 0xfee00000
1939 #ifndef CONFIG_USER_ONLY
1940 static void x86_cpu_apic_init(X86CPU
*cpu
, Error
**errp
)
1942 static int apic_mapped
;
1943 CPUX86State
*env
= &cpu
->env
;
1944 APICCommonState
*apic
;
1945 const char *apic_type
= "apic";
1947 if (kvm_irqchip_in_kernel()) {
1948 apic_type
= "kvm-apic";
1949 } else if (xen_enabled()) {
1950 apic_type
= "xen-apic";
1953 env
->apic_state
= qdev_try_create(NULL
, apic_type
);
1954 if (env
->apic_state
== NULL
) {
1955 error_setg(errp
, "APIC device '%s' could not be created", apic_type
);
1959 object_property_add_child(OBJECT(cpu
), "apic",
1960 OBJECT(env
->apic_state
), NULL
);
1961 qdev_prop_set_uint8(env
->apic_state
, "id", env
->cpuid_apic_id
);
1962 /* TODO: convert to link<> */
1963 apic
= APIC_COMMON(env
->apic_state
);
1966 if (qdev_init(env
->apic_state
)) {
1967 error_setg(errp
, "APIC device '%s' could not be initialized",
1968 object_get_typename(OBJECT(env
->apic_state
)));
1972 /* XXX: mapping more APICs at the same memory location */
1973 if (apic_mapped
== 0) {
1974 /* NOTE: the APIC is directly connected to the CPU - it is not
1975 on the global memory bus. */
1976 /* XXX: what if the base changes? */
1977 sysbus_mmio_map(sysbus_from_qdev(env
->apic_state
), 0, MSI_ADDR_BASE
);
1983 void x86_cpu_realize(Object
*obj
, Error
**errp
)
1985 X86CPU
*cpu
= X86_CPU(obj
);
1987 #ifndef CONFIG_USER_ONLY
1988 qemu_register_reset(x86_cpu_machine_reset_cb
, cpu
);
1990 if (cpu
->env
.cpuid_features
& CPUID_APIC
|| smp_cpus
> 1) {
1991 x86_cpu_apic_init(cpu
, errp
);
1992 if (error_is_set(errp
)) {
1999 qemu_init_vcpu(&cpu
->env
);
2000 cpu_reset(CPU(cpu
));
2003 static void x86_cpu_initfn(Object
*obj
)
2005 X86CPU
*cpu
= X86_CPU(obj
);
2006 CPUX86State
*env
= &cpu
->env
;
2011 object_property_add(obj
, "family", "int",
2012 x86_cpuid_version_get_family
,
2013 x86_cpuid_version_set_family
, NULL
, NULL
, NULL
);
2014 object_property_add(obj
, "model", "int",
2015 x86_cpuid_version_get_model
,
2016 x86_cpuid_version_set_model
, NULL
, NULL
, NULL
);
2017 object_property_add(obj
, "stepping", "int",
2018 x86_cpuid_version_get_stepping
,
2019 x86_cpuid_version_set_stepping
, NULL
, NULL
, NULL
);
2020 object_property_add(obj
, "level", "int",
2021 x86_cpuid_get_level
,
2022 x86_cpuid_set_level
, NULL
, NULL
, NULL
);
2023 object_property_add(obj
, "xlevel", "int",
2024 x86_cpuid_get_xlevel
,
2025 x86_cpuid_set_xlevel
, NULL
, NULL
, NULL
);
2026 object_property_add_str(obj
, "vendor",
2027 x86_cpuid_get_vendor
,
2028 x86_cpuid_set_vendor
, NULL
);
2029 object_property_add_str(obj
, "model-id",
2030 x86_cpuid_get_model_id
,
2031 x86_cpuid_set_model_id
, NULL
);
2032 object_property_add(obj
, "tsc-frequency", "int",
2033 x86_cpuid_get_tsc_freq
,
2034 x86_cpuid_set_tsc_freq
, NULL
, NULL
, NULL
);
2036 env
->cpuid_apic_id
= env
->cpu_index
;
2038 /* init various static tables used in TCG mode */
2039 if (tcg_enabled() && !inited
) {
2041 optimize_flags_init();
2042 #ifndef CONFIG_USER_ONLY
2043 cpu_set_debug_excp_handler(breakpoint_handler
);
2048 static void x86_cpu_common_class_init(ObjectClass
*oc
, void *data
)
2050 X86CPUClass
*xcc
= X86_CPU_CLASS(oc
);
2051 CPUClass
*cc
= CPU_CLASS(oc
);
2053 xcc
->parent_reset
= cc
->reset
;
2054 cc
->reset
= x86_cpu_reset
;
2057 static const TypeInfo x86_cpu_type_info
= {
2058 .name
= TYPE_X86_CPU
,
2060 .instance_size
= sizeof(X86CPU
),
2061 .instance_init
= x86_cpu_initfn
,
2063 .class_size
= sizeof(X86CPUClass
),
2064 .class_init
= x86_cpu_common_class_init
,
2067 static void x86_cpu_register_types(void)
2069 type_register_static(&x86_cpu_type_info
);
2072 type_init(x86_cpu_register_types
)