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/>.
19 #include "qemu/osdep.h"
20 #include "qemu/cutils.h"
23 #include "exec/exec-all.h"
24 #include "sysemu/kvm.h"
25 #include "sysemu/cpus.h"
28 #include "qemu/error-report.h"
29 #include "qemu/option.h"
30 #include "qemu/config-file.h"
31 #include "qapi/qmp/qerror.h"
33 #include "qapi-types.h"
34 #include "qapi-visit.h"
35 #include "qapi/visitor.h"
36 #include "sysemu/arch_init.h"
38 #if defined(CONFIG_KVM)
39 #include <linux/kvm_para.h>
42 #include "sysemu/sysemu.h"
43 #include "hw/qdev-properties.h"
44 #ifndef CONFIG_USER_ONLY
45 #include "exec/address-spaces.h"
47 #include "hw/xen/xen.h"
48 #include "hw/i386/apic_internal.h"
52 /* Cache topology CPUID constants: */
54 /* CPUID Leaf 2 Descriptors */
56 #define CPUID_2_L1D_32KB_8WAY_64B 0x2c
57 #define CPUID_2_L1I_32KB_8WAY_64B 0x30
58 #define CPUID_2_L2_2MB_8WAY_64B 0x7d
61 /* CPUID Leaf 4 constants: */
64 #define CPUID_4_TYPE_DCACHE 1
65 #define CPUID_4_TYPE_ICACHE 2
66 #define CPUID_4_TYPE_UNIFIED 3
68 #define CPUID_4_LEVEL(l) ((l) << 5)
70 #define CPUID_4_SELF_INIT_LEVEL (1 << 8)
71 #define CPUID_4_FULLY_ASSOC (1 << 9)
74 #define CPUID_4_NO_INVD_SHARING (1 << 0)
75 #define CPUID_4_INCLUSIVE (1 << 1)
76 #define CPUID_4_COMPLEX_IDX (1 << 2)
78 #define ASSOC_FULL 0xFF
80 /* AMD associativity encoding used on CPUID Leaf 0x80000006: */
81 #define AMD_ENC_ASSOC(a) (a <= 1 ? a : \
91 a == ASSOC_FULL ? 0xF : \
92 0 /* invalid value */)
95 /* Definitions of the hardcoded cache entries we expose: */
98 #define L1D_LINE_SIZE 64
99 #define L1D_ASSOCIATIVITY 8
101 #define L1D_PARTITIONS 1
102 /* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 32KiB */
103 #define L1D_DESCRIPTOR CPUID_2_L1D_32KB_8WAY_64B
104 /*FIXME: CPUID leaf 0x80000005 is inconsistent with leaves 2 & 4 */
105 #define L1D_LINES_PER_TAG 1
106 #define L1D_SIZE_KB_AMD 64
107 #define L1D_ASSOCIATIVITY_AMD 2
109 /* L1 instruction cache: */
110 #define L1I_LINE_SIZE 64
111 #define L1I_ASSOCIATIVITY 8
113 #define L1I_PARTITIONS 1
114 /* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 32KiB */
115 #define L1I_DESCRIPTOR CPUID_2_L1I_32KB_8WAY_64B
116 /*FIXME: CPUID leaf 0x80000005 is inconsistent with leaves 2 & 4 */
117 #define L1I_LINES_PER_TAG 1
118 #define L1I_SIZE_KB_AMD 64
119 #define L1I_ASSOCIATIVITY_AMD 2
121 /* Level 2 unified cache: */
122 #define L2_LINE_SIZE 64
123 #define L2_ASSOCIATIVITY 16
125 #define L2_PARTITIONS 1
126 /* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 4MiB */
127 /*FIXME: CPUID leaf 2 descriptor is inconsistent with CPUID leaf 4 */
128 #define L2_DESCRIPTOR CPUID_2_L2_2MB_8WAY_64B
129 /*FIXME: CPUID leaf 0x80000006 is inconsistent with leaves 2 & 4 */
130 #define L2_LINES_PER_TAG 1
131 #define L2_SIZE_KB_AMD 512
134 #define L3_SIZE_KB 0 /* disabled */
135 #define L3_ASSOCIATIVITY 0 /* disabled */
136 #define L3_LINES_PER_TAG 0 /* disabled */
137 #define L3_LINE_SIZE 0 /* disabled */
139 /* TLB definitions: */
141 #define L1_DTLB_2M_ASSOC 1
142 #define L1_DTLB_2M_ENTRIES 255
143 #define L1_DTLB_4K_ASSOC 1
144 #define L1_DTLB_4K_ENTRIES 255
146 #define L1_ITLB_2M_ASSOC 1
147 #define L1_ITLB_2M_ENTRIES 255
148 #define L1_ITLB_4K_ASSOC 1
149 #define L1_ITLB_4K_ENTRIES 255
151 #define L2_DTLB_2M_ASSOC 0 /* disabled */
152 #define L2_DTLB_2M_ENTRIES 0 /* disabled */
153 #define L2_DTLB_4K_ASSOC 4
154 #define L2_DTLB_4K_ENTRIES 512
156 #define L2_ITLB_2M_ASSOC 0 /* disabled */
157 #define L2_ITLB_2M_ENTRIES 0 /* disabled */
158 #define L2_ITLB_4K_ASSOC 4
159 #define L2_ITLB_4K_ENTRIES 512
163 static void x86_cpu_vendor_words2str(char *dst
, uint32_t vendor1
,
164 uint32_t vendor2
, uint32_t vendor3
)
167 for (i
= 0; i
< 4; i
++) {
168 dst
[i
] = vendor1
>> (8 * i
);
169 dst
[i
+ 4] = vendor2
>> (8 * i
);
170 dst
[i
+ 8] = vendor3
>> (8 * i
);
172 dst
[CPUID_VENDOR_SZ
] = '\0';
175 /* feature flags taken from "Intel Processor Identification and the CPUID
176 * Instruction" and AMD's "CPUID Specification". In cases of disagreement
177 * between feature naming conventions, aliases may be added.
179 static const char *feature_name
[] = {
180 "fpu", "vme", "de", "pse",
181 "tsc", "msr", "pae", "mce",
182 "cx8", "apic", NULL
, "sep",
183 "mtrr", "pge", "mca", "cmov",
184 "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */,
185 NULL
, "ds" /* Intel dts */, "acpi", "mmx",
186 "fxsr", "sse", "sse2", "ss",
187 "ht" /* Intel htt */, "tm", "ia64", "pbe",
189 static const char *ext_feature_name
[] = {
190 "pni|sse3" /* Intel,AMD sse3 */, "pclmulqdq|pclmuldq", "dtes64", "monitor",
191 "ds_cpl", "vmx", "smx", "est",
192 "tm2", "ssse3", "cid", NULL
,
193 "fma", "cx16", "xtpr", "pdcm",
194 NULL
, "pcid", "dca", "sse4.1|sse4_1",
195 "sse4.2|sse4_2", "x2apic", "movbe", "popcnt",
196 "tsc-deadline", "aes", "xsave", "osxsave",
197 "avx", "f16c", "rdrand", "hypervisor",
199 /* Feature names that are already defined on feature_name[] but are set on
200 * CPUID[8000_0001].EDX on AMD CPUs don't have their names on
201 * ext2_feature_name[]. They are copied automatically to cpuid_ext2_features
202 * if and only if CPU vendor is AMD.
204 static const char *ext2_feature_name
[] = {
205 NULL
/* fpu */, NULL
/* vme */, NULL
/* de */, NULL
/* pse */,
206 NULL
/* tsc */, NULL
/* msr */, NULL
/* pae */, NULL
/* mce */,
207 NULL
/* cx8 */ /* AMD CMPXCHG8B */, NULL
/* apic */, NULL
, "syscall",
208 NULL
/* mtrr */, NULL
/* pge */, NULL
/* mca */, NULL
/* cmov */,
209 NULL
/* pat */, NULL
/* pse36 */, NULL
, NULL
/* Linux mp */,
210 "nx|xd", NULL
, "mmxext", NULL
/* mmx */,
211 NULL
/* fxsr */, "fxsr_opt|ffxsr", "pdpe1gb" /* AMD Page1GB */, "rdtscp",
212 NULL
, "lm|i64", "3dnowext", "3dnow",
214 static const char *ext3_feature_name
[] = {
215 "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */,
216 "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
217 "3dnowprefetch", "osvw", "ibs", "xop",
218 "skinit", "wdt", NULL
, "lwp",
219 "fma4", "tce", NULL
, "nodeid_msr",
220 NULL
, "tbm", "topoext", "perfctr_core",
221 "perfctr_nb", NULL
, NULL
, NULL
,
222 NULL
, NULL
, NULL
, NULL
,
225 static const char *ext4_feature_name
[] = {
226 NULL
, NULL
, "xstore", "xstore-en",
227 NULL
, NULL
, "xcrypt", "xcrypt-en",
228 "ace2", "ace2-en", "phe", "phe-en",
229 "pmm", "pmm-en", NULL
, NULL
,
230 NULL
, NULL
, NULL
, NULL
,
231 NULL
, NULL
, NULL
, NULL
,
232 NULL
, NULL
, NULL
, NULL
,
233 NULL
, NULL
, NULL
, NULL
,
236 static const char *kvm_feature_name
[] = {
237 "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock",
238 "kvm_asyncpf", "kvm_steal_time", "kvm_pv_eoi", "kvm_pv_unhalt",
239 NULL
, NULL
, NULL
, NULL
,
240 NULL
, NULL
, NULL
, NULL
,
241 NULL
, NULL
, NULL
, NULL
,
242 NULL
, NULL
, NULL
, NULL
,
243 "kvmclock-stable-bit", NULL
, NULL
, NULL
,
244 NULL
, NULL
, NULL
, NULL
,
247 static const char *svm_feature_name
[] = {
248 "npt", "lbrv", "svm_lock", "nrip_save",
249 "tsc_scale", "vmcb_clean", "flushbyasid", "decodeassists",
250 NULL
, NULL
, "pause_filter", NULL
,
251 "pfthreshold", NULL
, NULL
, NULL
,
252 NULL
, NULL
, NULL
, NULL
,
253 NULL
, NULL
, NULL
, NULL
,
254 NULL
, NULL
, NULL
, NULL
,
255 NULL
, NULL
, NULL
, NULL
,
258 static const char *cpuid_7_0_ebx_feature_name
[] = {
259 "fsgsbase", "tsc_adjust", NULL
, "bmi1", "hle", "avx2", NULL
, "smep",
260 "bmi2", "erms", "invpcid", "rtm", NULL
, NULL
, "mpx", NULL
,
261 "avx512f", NULL
, "rdseed", "adx", "smap", NULL
, "pcommit", "clflushopt",
262 "clwb", NULL
, "avx512pf", "avx512er", "avx512cd", NULL
, NULL
, NULL
,
265 static const char *cpuid_7_0_ecx_feature_name
[] = {
266 NULL
, NULL
, NULL
, "pku",
267 "ospke", NULL
, NULL
, NULL
,
268 NULL
, NULL
, NULL
, NULL
,
269 NULL
, NULL
, NULL
, NULL
,
270 NULL
, NULL
, NULL
, NULL
,
271 NULL
, NULL
, NULL
, NULL
,
272 NULL
, NULL
, NULL
, NULL
,
273 NULL
, NULL
, NULL
, NULL
,
276 static const char *cpuid_apm_edx_feature_name
[] = {
277 NULL
, NULL
, NULL
, NULL
,
278 NULL
, NULL
, NULL
, NULL
,
279 "invtsc", NULL
, NULL
, NULL
,
280 NULL
, NULL
, NULL
, NULL
,
281 NULL
, NULL
, NULL
, NULL
,
282 NULL
, NULL
, NULL
, NULL
,
283 NULL
, NULL
, NULL
, NULL
,
284 NULL
, NULL
, NULL
, NULL
,
287 static const char *cpuid_xsave_feature_name
[] = {
288 "xsaveopt", "xsavec", "xgetbv1", "xsaves",
289 NULL
, NULL
, NULL
, NULL
,
290 NULL
, NULL
, NULL
, NULL
,
291 NULL
, NULL
, NULL
, NULL
,
292 NULL
, NULL
, NULL
, NULL
,
293 NULL
, NULL
, NULL
, NULL
,
294 NULL
, NULL
, NULL
, NULL
,
295 NULL
, NULL
, NULL
, NULL
,
298 static const char *cpuid_6_feature_name
[] = {
299 NULL
, NULL
, "arat", NULL
,
300 NULL
, NULL
, NULL
, NULL
,
301 NULL
, NULL
, NULL
, NULL
,
302 NULL
, NULL
, NULL
, NULL
,
303 NULL
, NULL
, NULL
, NULL
,
304 NULL
, NULL
, NULL
, NULL
,
305 NULL
, NULL
, NULL
, NULL
,
306 NULL
, NULL
, NULL
, NULL
,
309 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
310 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
311 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC)
312 #define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
313 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
314 CPUID_PSE36 | CPUID_FXSR)
315 #define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
316 #define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
317 CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
318 CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
319 CPUID_PAE | CPUID_SEP | CPUID_APIC)
321 #define TCG_FEATURES (CPUID_FP87 | CPUID_PSE | CPUID_TSC | CPUID_MSR | \
322 CPUID_PAE | CPUID_MCE | CPUID_CX8 | CPUID_APIC | CPUID_SEP | \
323 CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
324 CPUID_PSE36 | CPUID_CLFLUSH | CPUID_ACPI | CPUID_MMX | \
325 CPUID_FXSR | CPUID_SSE | CPUID_SSE2 | CPUID_SS | CPUID_DE)
326 /* partly implemented:
327 CPUID_MTRR, CPUID_MCA, CPUID_CLFLUSH (needed for Win64) */
329 CPUID_VME, CPUID_DTS, CPUID_SS, CPUID_HT, CPUID_TM, CPUID_PBE */
330 #define TCG_EXT_FEATURES (CPUID_EXT_SSE3 | CPUID_EXT_PCLMULQDQ | \
331 CPUID_EXT_MONITOR | CPUID_EXT_SSSE3 | CPUID_EXT_CX16 | \
332 CPUID_EXT_SSE41 | CPUID_EXT_SSE42 | CPUID_EXT_POPCNT | \
333 CPUID_EXT_XSAVE | /* CPUID_EXT_OSXSAVE is dynamic */ \
334 CPUID_EXT_MOVBE | CPUID_EXT_AES | CPUID_EXT_HYPERVISOR)
336 CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_SMX,
337 CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_CID, CPUID_EXT_FMA,
338 CPUID_EXT_XTPR, CPUID_EXT_PDCM, CPUID_EXT_PCID, CPUID_EXT_DCA,
339 CPUID_EXT_X2APIC, CPUID_EXT_TSC_DEADLINE_TIMER, CPUID_EXT_AVX,
340 CPUID_EXT_F16C, CPUID_EXT_RDRAND */
343 #define TCG_EXT2_X86_64_FEATURES (CPUID_EXT2_SYSCALL | CPUID_EXT2_LM)
345 #define TCG_EXT2_X86_64_FEATURES 0
348 #define TCG_EXT2_FEATURES ((TCG_FEATURES & CPUID_EXT2_AMD_ALIASES) | \
349 CPUID_EXT2_NX | CPUID_EXT2_MMXEXT | CPUID_EXT2_RDTSCP | \
350 CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_PDPE1GB | \
351 TCG_EXT2_X86_64_FEATURES)
352 #define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
353 CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
354 #define TCG_EXT4_FEATURES 0
355 #define TCG_SVM_FEATURES 0
356 #define TCG_KVM_FEATURES 0
357 #define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
358 CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX | \
359 CPUID_7_0_EBX_PCOMMIT | CPUID_7_0_EBX_CLFLUSHOPT | \
360 CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE)
362 CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2,
363 CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
364 CPUID_7_0_EBX_RDSEED */
365 #define TCG_7_0_ECX_FEATURES (CPUID_7_0_ECX_PKU | CPUID_7_0_ECX_OSPKE)
366 #define TCG_APM_FEATURES 0
367 #define TCG_6_EAX_FEATURES CPUID_6_EAX_ARAT
368 #define TCG_XSAVE_FEATURES (CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XGETBV1)
370 CPUID_XSAVE_XSAVEC, CPUID_XSAVE_XSAVES */
372 typedef struct FeatureWordInfo
{
373 const char **feat_names
;
374 uint32_t cpuid_eax
; /* Input EAX for CPUID */
375 bool cpuid_needs_ecx
; /* CPUID instruction uses ECX as input */
376 uint32_t cpuid_ecx
; /* Input ECX value for CPUID */
377 int cpuid_reg
; /* output register (R_* constant) */
378 uint32_t tcg_features
; /* Feature flags supported by TCG */
379 uint32_t unmigratable_flags
; /* Feature flags known to be unmigratable */
382 static FeatureWordInfo feature_word_info
[FEATURE_WORDS
] = {
384 .feat_names
= feature_name
,
385 .cpuid_eax
= 1, .cpuid_reg
= R_EDX
,
386 .tcg_features
= TCG_FEATURES
,
389 .feat_names
= ext_feature_name
,
390 .cpuid_eax
= 1, .cpuid_reg
= R_ECX
,
391 .tcg_features
= TCG_EXT_FEATURES
,
393 [FEAT_8000_0001_EDX
] = {
394 .feat_names
= ext2_feature_name
,
395 .cpuid_eax
= 0x80000001, .cpuid_reg
= R_EDX
,
396 .tcg_features
= TCG_EXT2_FEATURES
,
398 [FEAT_8000_0001_ECX
] = {
399 .feat_names
= ext3_feature_name
,
400 .cpuid_eax
= 0x80000001, .cpuid_reg
= R_ECX
,
401 .tcg_features
= TCG_EXT3_FEATURES
,
403 [FEAT_C000_0001_EDX
] = {
404 .feat_names
= ext4_feature_name
,
405 .cpuid_eax
= 0xC0000001, .cpuid_reg
= R_EDX
,
406 .tcg_features
= TCG_EXT4_FEATURES
,
409 .feat_names
= kvm_feature_name
,
410 .cpuid_eax
= KVM_CPUID_FEATURES
, .cpuid_reg
= R_EAX
,
411 .tcg_features
= TCG_KVM_FEATURES
,
414 .feat_names
= svm_feature_name
,
415 .cpuid_eax
= 0x8000000A, .cpuid_reg
= R_EDX
,
416 .tcg_features
= TCG_SVM_FEATURES
,
419 .feat_names
= cpuid_7_0_ebx_feature_name
,
421 .cpuid_needs_ecx
= true, .cpuid_ecx
= 0,
423 .tcg_features
= TCG_7_0_EBX_FEATURES
,
426 .feat_names
= cpuid_7_0_ecx_feature_name
,
428 .cpuid_needs_ecx
= true, .cpuid_ecx
= 0,
430 .tcg_features
= TCG_7_0_ECX_FEATURES
,
432 [FEAT_8000_0007_EDX
] = {
433 .feat_names
= cpuid_apm_edx_feature_name
,
434 .cpuid_eax
= 0x80000007,
436 .tcg_features
= TCG_APM_FEATURES
,
437 .unmigratable_flags
= CPUID_APM_INVTSC
,
440 .feat_names
= cpuid_xsave_feature_name
,
442 .cpuid_needs_ecx
= true, .cpuid_ecx
= 1,
444 .tcg_features
= TCG_XSAVE_FEATURES
,
447 .feat_names
= cpuid_6_feature_name
,
448 .cpuid_eax
= 6, .cpuid_reg
= R_EAX
,
449 .tcg_features
= TCG_6_EAX_FEATURES
,
453 typedef struct X86RegisterInfo32
{
454 /* Name of register */
456 /* QAPI enum value register */
457 X86CPURegister32 qapi_enum
;
460 #define REGISTER(reg) \
461 [R_##reg] = { .name = #reg, .qapi_enum = X86_CPU_REGISTER32_##reg }
462 static const X86RegisterInfo32 x86_reg_info_32
[CPU_NB_REGS32
] = {
474 const ExtSaveArea x86_ext_save_areas
[] = {
476 { .feature
= FEAT_1_ECX
, .bits
= CPUID_EXT_AVX
,
477 .offset
= offsetof(X86XSaveArea
, avx_state
),
478 .size
= sizeof(XSaveAVX
) },
479 [XSTATE_BNDREGS_BIT
] =
480 { .feature
= FEAT_7_0_EBX
, .bits
= CPUID_7_0_EBX_MPX
,
481 .offset
= offsetof(X86XSaveArea
, bndreg_state
),
482 .size
= sizeof(XSaveBNDREG
) },
483 [XSTATE_BNDCSR_BIT
] =
484 { .feature
= FEAT_7_0_EBX
, .bits
= CPUID_7_0_EBX_MPX
,
485 .offset
= offsetof(X86XSaveArea
, bndcsr_state
),
486 .size
= sizeof(XSaveBNDCSR
) },
487 [XSTATE_OPMASK_BIT
] =
488 { .feature
= FEAT_7_0_EBX
, .bits
= CPUID_7_0_EBX_AVX512F
,
489 .offset
= offsetof(X86XSaveArea
, opmask_state
),
490 .size
= sizeof(XSaveOpmask
) },
491 [XSTATE_ZMM_Hi256_BIT
] =
492 { .feature
= FEAT_7_0_EBX
, .bits
= CPUID_7_0_EBX_AVX512F
,
493 .offset
= offsetof(X86XSaveArea
, zmm_hi256_state
),
494 .size
= sizeof(XSaveZMM_Hi256
) },
495 [XSTATE_Hi16_ZMM_BIT
] =
496 { .feature
= FEAT_7_0_EBX
, .bits
= CPUID_7_0_EBX_AVX512F
,
497 .offset
= offsetof(X86XSaveArea
, hi16_zmm_state
),
498 .size
= sizeof(XSaveHi16_ZMM
) },
500 { .feature
= FEAT_7_0_ECX
, .bits
= CPUID_7_0_ECX_PKU
,
501 .offset
= offsetof(X86XSaveArea
, pkru_state
),
502 .size
= sizeof(XSavePKRU
) },
505 const char *get_register_name_32(unsigned int reg
)
507 if (reg
>= CPU_NB_REGS32
) {
510 return x86_reg_info_32
[reg
].name
;
514 * Returns the set of feature flags that are supported and migratable by
515 * QEMU, for a given FeatureWord.
517 static uint32_t x86_cpu_get_migratable_flags(FeatureWord w
)
519 FeatureWordInfo
*wi
= &feature_word_info
[w
];
523 for (i
= 0; i
< 32; i
++) {
524 uint32_t f
= 1U << i
;
525 /* If the feature name is unknown, it is not supported by QEMU yet */
526 if (!wi
->feat_names
[i
]) {
529 /* Skip features known to QEMU, but explicitly marked as unmigratable */
530 if (wi
->unmigratable_flags
& f
) {
538 void host_cpuid(uint32_t function
, uint32_t count
,
539 uint32_t *eax
, uint32_t *ebx
, uint32_t *ecx
, uint32_t *edx
)
545 : "=a"(vec
[0]), "=b"(vec
[1]),
546 "=c"(vec
[2]), "=d"(vec
[3])
547 : "0"(function
), "c"(count
) : "cc");
548 #elif defined(__i386__)
549 asm volatile("pusha \n\t"
551 "mov %%eax, 0(%2) \n\t"
552 "mov %%ebx, 4(%2) \n\t"
553 "mov %%ecx, 8(%2) \n\t"
554 "mov %%edx, 12(%2) \n\t"
556 : : "a"(function
), "c"(count
), "S"(vec
)
572 #define iswhite(c) ((c) && ((c) <= ' ' || '~' < (c)))
574 /* general substring compare of *[s1..e1) and *[s2..e2). sx is start of
575 * a substring. ex if !NULL points to the first char after a substring,
576 * otherwise the string is assumed to sized by a terminating nul.
577 * Return lexical ordering of *s1:*s2.
579 static int sstrcmp(const char *s1
, const char *e1
,
580 const char *s2
, const char *e2
)
583 if (!*s1
|| !*s2
|| *s1
!= *s2
)
586 if (s1
== e1
&& s2
== e2
)
595 /* compare *[s..e) to *altstr. *altstr may be a simple string or multiple
596 * '|' delimited (possibly empty) strings in which case search for a match
597 * within the alternatives proceeds left to right. Return 0 for success,
598 * non-zero otherwise.
600 static int altcmp(const char *s
, const char *e
, const char *altstr
)
604 for (q
= p
= altstr
; ; ) {
605 while (*p
&& *p
!= '|')
607 if ((q
== p
&& !*s
) || (q
!= p
&& !sstrcmp(s
, e
, q
, p
)))
616 /* search featureset for flag *[s..e), if found set corresponding bit in
617 * *pval and return true, otherwise return false
619 static bool lookup_feature(uint32_t *pval
, const char *s
, const char *e
,
620 const char **featureset
)
626 for (mask
= 1, ppc
= featureset
; mask
; mask
<<= 1, ++ppc
) {
627 if (*ppc
&& !altcmp(s
, e
, *ppc
)) {
635 static void add_flagname_to_bitmaps(const char *flagname
,
636 FeatureWordArray words
,
640 for (w
= 0; w
< FEATURE_WORDS
; w
++) {
641 FeatureWordInfo
*wi
= &feature_word_info
[w
];
642 if (wi
->feat_names
&&
643 lookup_feature(&words
[w
], flagname
, NULL
, wi
->feat_names
)) {
647 if (w
== FEATURE_WORDS
) {
648 error_setg(errp
, "CPU feature %s not found", flagname
);
652 /* CPU class name definitions: */
654 #define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
655 #define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
657 /* Return type name for a given CPU model name
658 * Caller is responsible for freeing the returned string.
660 static char *x86_cpu_type_name(const char *model_name
)
662 return g_strdup_printf(X86_CPU_TYPE_NAME("%s"), model_name
);
665 static ObjectClass
*x86_cpu_class_by_name(const char *cpu_model
)
670 if (cpu_model
== NULL
) {
674 typename
= x86_cpu_type_name(cpu_model
);
675 oc
= object_class_by_name(typename
);
680 struct X86CPUDefinition
{
685 /* vendor is zero-terminated, 12 character ASCII string */
686 char vendor
[CPUID_VENDOR_SZ
+ 1];
690 FeatureWordArray features
;
694 static X86CPUDefinition builtin_x86_defs
[] = {
698 .vendor
= CPUID_VENDOR_AMD
,
702 .features
[FEAT_1_EDX
] =
704 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
706 .features
[FEAT_1_ECX
] =
707 CPUID_EXT_SSE3
| CPUID_EXT_CX16
,
708 .features
[FEAT_8000_0001_EDX
] =
709 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
710 .features
[FEAT_8000_0001_ECX
] =
711 CPUID_EXT3_LAHF_LM
| CPUID_EXT3_SVM
,
712 .xlevel
= 0x8000000A,
713 .model_id
= "QEMU Virtual CPU version " QEMU_HW_VERSION
,
718 .vendor
= CPUID_VENDOR_AMD
,
722 /* Missing: CPUID_HT */
723 .features
[FEAT_1_EDX
] =
725 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
726 CPUID_PSE36
| CPUID_VME
,
727 .features
[FEAT_1_ECX
] =
728 CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_CX16
|
730 .features
[FEAT_8000_0001_EDX
] =
731 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
|
732 CPUID_EXT2_3DNOW
| CPUID_EXT2_3DNOWEXT
| CPUID_EXT2_MMXEXT
|
733 CPUID_EXT2_FFXSR
| CPUID_EXT2_PDPE1GB
| CPUID_EXT2_RDTSCP
,
734 /* Missing: CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
736 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
737 CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
738 .features
[FEAT_8000_0001_ECX
] =
739 CPUID_EXT3_LAHF_LM
| CPUID_EXT3_SVM
|
740 CPUID_EXT3_ABM
| CPUID_EXT3_SSE4A
,
741 /* Missing: CPUID_SVM_LBRV */
742 .features
[FEAT_SVM
] =
744 .xlevel
= 0x8000001A,
745 .model_id
= "AMD Phenom(tm) 9550 Quad-Core Processor"
750 .vendor
= CPUID_VENDOR_INTEL
,
754 /* Missing: CPUID_DTS, CPUID_HT, CPUID_TM, CPUID_PBE */
755 .features
[FEAT_1_EDX
] =
757 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
758 CPUID_PSE36
| CPUID_VME
| CPUID_ACPI
| CPUID_SS
,
759 /* Missing: CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_EST,
760 * CPUID_EXT_TM2, CPUID_EXT_XTPR, CPUID_EXT_PDCM, CPUID_EXT_VMX */
761 .features
[FEAT_1_ECX
] =
762 CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_SSSE3
|
764 .features
[FEAT_8000_0001_EDX
] =
765 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
766 .features
[FEAT_8000_0001_ECX
] =
768 .xlevel
= 0x80000008,
769 .model_id
= "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
774 .vendor
= CPUID_VENDOR_INTEL
,
778 /* Missing: CPUID_HT */
779 .features
[FEAT_1_EDX
] =
780 PPRO_FEATURES
| CPUID_VME
|
781 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
|
783 /* Missing: CPUID_EXT_POPCNT, CPUID_EXT_MONITOR */
784 .features
[FEAT_1_ECX
] =
785 CPUID_EXT_SSE3
| CPUID_EXT_CX16
,
786 /* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
787 .features
[FEAT_8000_0001_EDX
] =
788 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
789 /* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
790 CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
791 CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
792 CPUID_EXT3_OSVW, CPUID_EXT3_IBS, CPUID_EXT3_SVM */
793 .features
[FEAT_8000_0001_ECX
] =
795 .xlevel
= 0x80000008,
796 .model_id
= "Common KVM processor"
801 .vendor
= CPUID_VENDOR_INTEL
,
805 .features
[FEAT_1_EDX
] =
807 .features
[FEAT_1_ECX
] =
809 .xlevel
= 0x80000004,
810 .model_id
= "QEMU Virtual CPU version " QEMU_HW_VERSION
,
815 .vendor
= CPUID_VENDOR_INTEL
,
819 .features
[FEAT_1_EDX
] =
820 PPRO_FEATURES
| CPUID_VME
|
821 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
| CPUID_PSE36
,
822 .features
[FEAT_1_ECX
] =
824 .features
[FEAT_8000_0001_ECX
] =
826 .xlevel
= 0x80000008,
827 .model_id
= "Common 32-bit KVM processor"
832 .vendor
= CPUID_VENDOR_INTEL
,
836 /* Missing: CPUID_DTS, CPUID_HT, CPUID_TM, CPUID_PBE */
837 .features
[FEAT_1_EDX
] =
838 PPRO_FEATURES
| CPUID_VME
|
839 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
| CPUID_ACPI
|
841 /* Missing: CPUID_EXT_EST, CPUID_EXT_TM2 , CPUID_EXT_XTPR,
842 * CPUID_EXT_PDCM, CPUID_EXT_VMX */
843 .features
[FEAT_1_ECX
] =
844 CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
,
845 .features
[FEAT_8000_0001_EDX
] =
847 .xlevel
= 0x80000008,
848 .model_id
= "Genuine Intel(R) CPU T2600 @ 2.16GHz",
853 .vendor
= CPUID_VENDOR_INTEL
,
857 .features
[FEAT_1_EDX
] =
864 .vendor
= CPUID_VENDOR_INTEL
,
868 .features
[FEAT_1_EDX
] =
875 .vendor
= CPUID_VENDOR_INTEL
,
879 .features
[FEAT_1_EDX
] =
886 .vendor
= CPUID_VENDOR_INTEL
,
890 .features
[FEAT_1_EDX
] =
897 .vendor
= CPUID_VENDOR_AMD
,
901 .features
[FEAT_1_EDX
] =
902 PPRO_FEATURES
| CPUID_PSE36
| CPUID_VME
| CPUID_MTRR
|
904 .features
[FEAT_8000_0001_EDX
] =
905 CPUID_EXT2_MMXEXT
| CPUID_EXT2_3DNOW
| CPUID_EXT2_3DNOWEXT
,
906 .xlevel
= 0x80000008,
907 .model_id
= "QEMU Virtual CPU version " QEMU_HW_VERSION
,
912 .vendor
= CPUID_VENDOR_INTEL
,
916 /* Missing: CPUID_DTS, CPUID_HT, CPUID_TM, CPUID_PBE */
917 .features
[FEAT_1_EDX
] =
919 CPUID_MTRR
| CPUID_CLFLUSH
| CPUID_MCA
| CPUID_VME
|
920 CPUID_ACPI
| CPUID_SS
,
921 /* Some CPUs got no CPUID_SEP */
922 /* Missing: CPUID_EXT_DSCPL, CPUID_EXT_EST, CPUID_EXT_TM2,
924 .features
[FEAT_1_ECX
] =
925 CPUID_EXT_SSE3
| CPUID_EXT_MONITOR
| CPUID_EXT_SSSE3
|
927 .features
[FEAT_8000_0001_EDX
] =
929 .features
[FEAT_8000_0001_ECX
] =
931 .xlevel
= 0x80000008,
932 .model_id
= "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
937 .vendor
= CPUID_VENDOR_INTEL
,
941 .features
[FEAT_1_EDX
] =
942 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
943 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
944 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
945 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
946 CPUID_DE
| CPUID_FP87
,
947 .features
[FEAT_1_ECX
] =
948 CPUID_EXT_SSSE3
| CPUID_EXT_SSE3
,
949 .features
[FEAT_8000_0001_EDX
] =
950 CPUID_EXT2_LM
| CPUID_EXT2_NX
| CPUID_EXT2_SYSCALL
,
951 .features
[FEAT_8000_0001_ECX
] =
953 .xlevel
= 0x80000008,
954 .model_id
= "Intel Celeron_4x0 (Conroe/Merom Class Core 2)",
959 .vendor
= CPUID_VENDOR_INTEL
,
963 .features
[FEAT_1_EDX
] =
964 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
965 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
966 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
967 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
968 CPUID_DE
| CPUID_FP87
,
969 .features
[FEAT_1_ECX
] =
970 CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_SSSE3
|
972 .features
[FEAT_8000_0001_EDX
] =
973 CPUID_EXT2_LM
| CPUID_EXT2_NX
| CPUID_EXT2_SYSCALL
,
974 .features
[FEAT_8000_0001_ECX
] =
976 .xlevel
= 0x80000008,
977 .model_id
= "Intel Core 2 Duo P9xxx (Penryn Class Core 2)",
982 .vendor
= CPUID_VENDOR_INTEL
,
986 .features
[FEAT_1_EDX
] =
987 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
988 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
989 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
990 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
991 CPUID_DE
| CPUID_FP87
,
992 .features
[FEAT_1_ECX
] =
993 CPUID_EXT_POPCNT
| CPUID_EXT_SSE42
| CPUID_EXT_SSE41
|
994 CPUID_EXT_CX16
| CPUID_EXT_SSSE3
| CPUID_EXT_SSE3
,
995 .features
[FEAT_8000_0001_EDX
] =
996 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
997 .features
[FEAT_8000_0001_ECX
] =
999 .xlevel
= 0x80000008,
1000 .model_id
= "Intel Core i7 9xx (Nehalem Class Core i7)",
1005 .vendor
= CPUID_VENDOR_INTEL
,
1009 .features
[FEAT_1_EDX
] =
1010 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1011 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1012 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1013 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1014 CPUID_DE
| CPUID_FP87
,
1015 .features
[FEAT_1_ECX
] =
1016 CPUID_EXT_AES
| CPUID_EXT_POPCNT
| CPUID_EXT_SSE42
|
1017 CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_SSSE3
|
1018 CPUID_EXT_PCLMULQDQ
| CPUID_EXT_SSE3
,
1019 .features
[FEAT_8000_0001_EDX
] =
1020 CPUID_EXT2_LM
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_NX
,
1021 .features
[FEAT_8000_0001_ECX
] =
1023 .features
[FEAT_6_EAX
] =
1025 .xlevel
= 0x80000008,
1026 .model_id
= "Westmere E56xx/L56xx/X56xx (Nehalem-C)",
1029 .name
= "SandyBridge",
1031 .vendor
= CPUID_VENDOR_INTEL
,
1035 .features
[FEAT_1_EDX
] =
1036 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1037 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1038 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1039 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1040 CPUID_DE
| CPUID_FP87
,
1041 .features
[FEAT_1_ECX
] =
1042 CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
1043 CPUID_EXT_TSC_DEADLINE_TIMER
| CPUID_EXT_POPCNT
|
1044 CPUID_EXT_X2APIC
| CPUID_EXT_SSE42
| CPUID_EXT_SSE41
|
1045 CPUID_EXT_CX16
| CPUID_EXT_SSSE3
| CPUID_EXT_PCLMULQDQ
|
1047 .features
[FEAT_8000_0001_EDX
] =
1048 CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_NX
|
1050 .features
[FEAT_8000_0001_ECX
] =
1052 .features
[FEAT_XSAVE
] =
1053 CPUID_XSAVE_XSAVEOPT
,
1054 .features
[FEAT_6_EAX
] =
1056 .xlevel
= 0x80000008,
1057 .model_id
= "Intel Xeon E312xx (Sandy Bridge)",
1060 .name
= "IvyBridge",
1062 .vendor
= CPUID_VENDOR_INTEL
,
1066 .features
[FEAT_1_EDX
] =
1067 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1068 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1069 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1070 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1071 CPUID_DE
| CPUID_FP87
,
1072 .features
[FEAT_1_ECX
] =
1073 CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
1074 CPUID_EXT_TSC_DEADLINE_TIMER
| CPUID_EXT_POPCNT
|
1075 CPUID_EXT_X2APIC
| CPUID_EXT_SSE42
| CPUID_EXT_SSE41
|
1076 CPUID_EXT_CX16
| CPUID_EXT_SSSE3
| CPUID_EXT_PCLMULQDQ
|
1077 CPUID_EXT_SSE3
| CPUID_EXT_F16C
| CPUID_EXT_RDRAND
,
1078 .features
[FEAT_7_0_EBX
] =
1079 CPUID_7_0_EBX_FSGSBASE
| CPUID_7_0_EBX_SMEP
|
1081 .features
[FEAT_8000_0001_EDX
] =
1082 CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_NX
|
1084 .features
[FEAT_8000_0001_ECX
] =
1086 .features
[FEAT_XSAVE
] =
1087 CPUID_XSAVE_XSAVEOPT
,
1088 .features
[FEAT_6_EAX
] =
1090 .xlevel
= 0x80000008,
1091 .model_id
= "Intel Xeon E3-12xx v2 (Ivy Bridge)",
1094 .name
= "Haswell-noTSX",
1096 .vendor
= CPUID_VENDOR_INTEL
,
1100 .features
[FEAT_1_EDX
] =
1101 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1102 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1103 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1104 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1105 CPUID_DE
| CPUID_FP87
,
1106 .features
[FEAT_1_ECX
] =
1107 CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
1108 CPUID_EXT_POPCNT
| CPUID_EXT_X2APIC
| CPUID_EXT_SSE42
|
1109 CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_SSSE3
|
1110 CPUID_EXT_PCLMULQDQ
| CPUID_EXT_SSE3
|
1111 CPUID_EXT_TSC_DEADLINE_TIMER
| CPUID_EXT_FMA
| CPUID_EXT_MOVBE
|
1112 CPUID_EXT_PCID
| CPUID_EXT_F16C
| CPUID_EXT_RDRAND
,
1113 .features
[FEAT_8000_0001_EDX
] =
1114 CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_NX
|
1116 .features
[FEAT_8000_0001_ECX
] =
1117 CPUID_EXT3_ABM
| CPUID_EXT3_LAHF_LM
,
1118 .features
[FEAT_7_0_EBX
] =
1119 CPUID_7_0_EBX_FSGSBASE
| CPUID_7_0_EBX_BMI1
|
1120 CPUID_7_0_EBX_AVX2
| CPUID_7_0_EBX_SMEP
|
1121 CPUID_7_0_EBX_BMI2
| CPUID_7_0_EBX_ERMS
| CPUID_7_0_EBX_INVPCID
,
1122 .features
[FEAT_XSAVE
] =
1123 CPUID_XSAVE_XSAVEOPT
,
1124 .features
[FEAT_6_EAX
] =
1126 .xlevel
= 0x80000008,
1127 .model_id
= "Intel Core Processor (Haswell, no TSX)",
1131 .vendor
= CPUID_VENDOR_INTEL
,
1135 .features
[FEAT_1_EDX
] =
1136 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1137 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1138 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1139 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1140 CPUID_DE
| CPUID_FP87
,
1141 .features
[FEAT_1_ECX
] =
1142 CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
1143 CPUID_EXT_POPCNT
| CPUID_EXT_X2APIC
| CPUID_EXT_SSE42
|
1144 CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_SSSE3
|
1145 CPUID_EXT_PCLMULQDQ
| CPUID_EXT_SSE3
|
1146 CPUID_EXT_TSC_DEADLINE_TIMER
| CPUID_EXT_FMA
| CPUID_EXT_MOVBE
|
1147 CPUID_EXT_PCID
| CPUID_EXT_F16C
| CPUID_EXT_RDRAND
,
1148 .features
[FEAT_8000_0001_EDX
] =
1149 CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_NX
|
1151 .features
[FEAT_8000_0001_ECX
] =
1152 CPUID_EXT3_ABM
| CPUID_EXT3_LAHF_LM
,
1153 .features
[FEAT_7_0_EBX
] =
1154 CPUID_7_0_EBX_FSGSBASE
| CPUID_7_0_EBX_BMI1
|
1155 CPUID_7_0_EBX_HLE
| CPUID_7_0_EBX_AVX2
| CPUID_7_0_EBX_SMEP
|
1156 CPUID_7_0_EBX_BMI2
| CPUID_7_0_EBX_ERMS
| CPUID_7_0_EBX_INVPCID
|
1158 .features
[FEAT_XSAVE
] =
1159 CPUID_XSAVE_XSAVEOPT
,
1160 .features
[FEAT_6_EAX
] =
1162 .xlevel
= 0x80000008,
1163 .model_id
= "Intel Core Processor (Haswell)",
1166 .name
= "Broadwell-noTSX",
1168 .vendor
= CPUID_VENDOR_INTEL
,
1172 .features
[FEAT_1_EDX
] =
1173 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1174 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1175 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1176 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1177 CPUID_DE
| CPUID_FP87
,
1178 .features
[FEAT_1_ECX
] =
1179 CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
1180 CPUID_EXT_POPCNT
| CPUID_EXT_X2APIC
| CPUID_EXT_SSE42
|
1181 CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_SSSE3
|
1182 CPUID_EXT_PCLMULQDQ
| CPUID_EXT_SSE3
|
1183 CPUID_EXT_TSC_DEADLINE_TIMER
| CPUID_EXT_FMA
| CPUID_EXT_MOVBE
|
1184 CPUID_EXT_PCID
| CPUID_EXT_F16C
| CPUID_EXT_RDRAND
,
1185 .features
[FEAT_8000_0001_EDX
] =
1186 CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_NX
|
1188 .features
[FEAT_8000_0001_ECX
] =
1189 CPUID_EXT3_ABM
| CPUID_EXT3_LAHF_LM
| CPUID_EXT3_3DNOWPREFETCH
,
1190 .features
[FEAT_7_0_EBX
] =
1191 CPUID_7_0_EBX_FSGSBASE
| CPUID_7_0_EBX_BMI1
|
1192 CPUID_7_0_EBX_AVX2
| CPUID_7_0_EBX_SMEP
|
1193 CPUID_7_0_EBX_BMI2
| CPUID_7_0_EBX_ERMS
| CPUID_7_0_EBX_INVPCID
|
1194 CPUID_7_0_EBX_RDSEED
| CPUID_7_0_EBX_ADX
|
1196 .features
[FEAT_XSAVE
] =
1197 CPUID_XSAVE_XSAVEOPT
,
1198 .features
[FEAT_6_EAX
] =
1200 .xlevel
= 0x80000008,
1201 .model_id
= "Intel Core Processor (Broadwell, no TSX)",
1204 .name
= "Broadwell",
1206 .vendor
= CPUID_VENDOR_INTEL
,
1210 .features
[FEAT_1_EDX
] =
1211 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1212 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1213 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1214 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1215 CPUID_DE
| CPUID_FP87
,
1216 .features
[FEAT_1_ECX
] =
1217 CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
1218 CPUID_EXT_POPCNT
| CPUID_EXT_X2APIC
| CPUID_EXT_SSE42
|
1219 CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_SSSE3
|
1220 CPUID_EXT_PCLMULQDQ
| CPUID_EXT_SSE3
|
1221 CPUID_EXT_TSC_DEADLINE_TIMER
| CPUID_EXT_FMA
| CPUID_EXT_MOVBE
|
1222 CPUID_EXT_PCID
| CPUID_EXT_F16C
| CPUID_EXT_RDRAND
,
1223 .features
[FEAT_8000_0001_EDX
] =
1224 CPUID_EXT2_LM
| CPUID_EXT2_RDTSCP
| CPUID_EXT2_NX
|
1226 .features
[FEAT_8000_0001_ECX
] =
1227 CPUID_EXT3_ABM
| CPUID_EXT3_LAHF_LM
| CPUID_EXT3_3DNOWPREFETCH
,
1228 .features
[FEAT_7_0_EBX
] =
1229 CPUID_7_0_EBX_FSGSBASE
| CPUID_7_0_EBX_BMI1
|
1230 CPUID_7_0_EBX_HLE
| CPUID_7_0_EBX_AVX2
| CPUID_7_0_EBX_SMEP
|
1231 CPUID_7_0_EBX_BMI2
| CPUID_7_0_EBX_ERMS
| CPUID_7_0_EBX_INVPCID
|
1232 CPUID_7_0_EBX_RTM
| CPUID_7_0_EBX_RDSEED
| CPUID_7_0_EBX_ADX
|
1234 .features
[FEAT_XSAVE
] =
1235 CPUID_XSAVE_XSAVEOPT
,
1236 .features
[FEAT_6_EAX
] =
1238 .xlevel
= 0x80000008,
1239 .model_id
= "Intel Core Processor (Broadwell)",
1242 .name
= "Opteron_G1",
1244 .vendor
= CPUID_VENDOR_AMD
,
1248 .features
[FEAT_1_EDX
] =
1249 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1250 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1251 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1252 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1253 CPUID_DE
| CPUID_FP87
,
1254 .features
[FEAT_1_ECX
] =
1256 .features
[FEAT_8000_0001_EDX
] =
1257 CPUID_EXT2_LM
| CPUID_EXT2_FXSR
| CPUID_EXT2_MMX
|
1258 CPUID_EXT2_NX
| CPUID_EXT2_PSE36
| CPUID_EXT2_PAT
|
1259 CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
| CPUID_EXT2_PGE
|
1260 CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_APIC
|
1261 CPUID_EXT2_CX8
| CPUID_EXT2_MCE
| CPUID_EXT2_PAE
| CPUID_EXT2_MSR
|
1262 CPUID_EXT2_TSC
| CPUID_EXT2_PSE
| CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
1263 .xlevel
= 0x80000008,
1264 .model_id
= "AMD Opteron 240 (Gen 1 Class Opteron)",
1267 .name
= "Opteron_G2",
1269 .vendor
= CPUID_VENDOR_AMD
,
1273 .features
[FEAT_1_EDX
] =
1274 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1275 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1276 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1277 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1278 CPUID_DE
| CPUID_FP87
,
1279 .features
[FEAT_1_ECX
] =
1280 CPUID_EXT_CX16
| CPUID_EXT_SSE3
,
1281 /* Missing: CPUID_EXT2_RDTSCP */
1282 .features
[FEAT_8000_0001_EDX
] =
1283 CPUID_EXT2_LM
| CPUID_EXT2_FXSR
|
1284 CPUID_EXT2_MMX
| CPUID_EXT2_NX
| CPUID_EXT2_PSE36
|
1285 CPUID_EXT2_PAT
| CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
|
1286 CPUID_EXT2_PGE
| CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
|
1287 CPUID_EXT2_APIC
| CPUID_EXT2_CX8
| CPUID_EXT2_MCE
|
1288 CPUID_EXT2_PAE
| CPUID_EXT2_MSR
| CPUID_EXT2_TSC
| CPUID_EXT2_PSE
|
1289 CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
1290 .features
[FEAT_8000_0001_ECX
] =
1291 CPUID_EXT3_SVM
| CPUID_EXT3_LAHF_LM
,
1292 .xlevel
= 0x80000008,
1293 .model_id
= "AMD Opteron 22xx (Gen 2 Class Opteron)",
1296 .name
= "Opteron_G3",
1298 .vendor
= CPUID_VENDOR_AMD
,
1302 .features
[FEAT_1_EDX
] =
1303 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1304 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1305 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1306 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1307 CPUID_DE
| CPUID_FP87
,
1308 .features
[FEAT_1_ECX
] =
1309 CPUID_EXT_POPCNT
| CPUID_EXT_CX16
| CPUID_EXT_MONITOR
|
1311 /* Missing: CPUID_EXT2_RDTSCP */
1312 .features
[FEAT_8000_0001_EDX
] =
1313 CPUID_EXT2_LM
| CPUID_EXT2_FXSR
|
1314 CPUID_EXT2_MMX
| CPUID_EXT2_NX
| CPUID_EXT2_PSE36
|
1315 CPUID_EXT2_PAT
| CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
|
1316 CPUID_EXT2_PGE
| CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
|
1317 CPUID_EXT2_APIC
| CPUID_EXT2_CX8
| CPUID_EXT2_MCE
|
1318 CPUID_EXT2_PAE
| CPUID_EXT2_MSR
| CPUID_EXT2_TSC
| CPUID_EXT2_PSE
|
1319 CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
1320 .features
[FEAT_8000_0001_ECX
] =
1321 CPUID_EXT3_MISALIGNSSE
| CPUID_EXT3_SSE4A
|
1322 CPUID_EXT3_ABM
| CPUID_EXT3_SVM
| CPUID_EXT3_LAHF_LM
,
1323 .xlevel
= 0x80000008,
1324 .model_id
= "AMD Opteron 23xx (Gen 3 Class Opteron)",
1327 .name
= "Opteron_G4",
1329 .vendor
= CPUID_VENDOR_AMD
,
1333 .features
[FEAT_1_EDX
] =
1334 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1335 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1336 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1337 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1338 CPUID_DE
| CPUID_FP87
,
1339 .features
[FEAT_1_ECX
] =
1340 CPUID_EXT_AVX
| CPUID_EXT_XSAVE
| CPUID_EXT_AES
|
1341 CPUID_EXT_POPCNT
| CPUID_EXT_SSE42
| CPUID_EXT_SSE41
|
1342 CPUID_EXT_CX16
| CPUID_EXT_SSSE3
| CPUID_EXT_PCLMULQDQ
|
1344 /* Missing: CPUID_EXT2_RDTSCP */
1345 .features
[FEAT_8000_0001_EDX
] =
1347 CPUID_EXT2_PDPE1GB
| CPUID_EXT2_FXSR
| CPUID_EXT2_MMX
|
1348 CPUID_EXT2_NX
| CPUID_EXT2_PSE36
| CPUID_EXT2_PAT
|
1349 CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
| CPUID_EXT2_PGE
|
1350 CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_APIC
|
1351 CPUID_EXT2_CX8
| CPUID_EXT2_MCE
| CPUID_EXT2_PAE
| CPUID_EXT2_MSR
|
1352 CPUID_EXT2_TSC
| CPUID_EXT2_PSE
| CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
1353 .features
[FEAT_8000_0001_ECX
] =
1354 CPUID_EXT3_FMA4
| CPUID_EXT3_XOP
|
1355 CPUID_EXT3_3DNOWPREFETCH
| CPUID_EXT3_MISALIGNSSE
|
1356 CPUID_EXT3_SSE4A
| CPUID_EXT3_ABM
| CPUID_EXT3_SVM
|
1359 .xlevel
= 0x8000001A,
1360 .model_id
= "AMD Opteron 62xx class CPU",
1363 .name
= "Opteron_G5",
1365 .vendor
= CPUID_VENDOR_AMD
,
1369 .features
[FEAT_1_EDX
] =
1370 CPUID_VME
| CPUID_SSE2
| CPUID_SSE
| CPUID_FXSR
| CPUID_MMX
|
1371 CPUID_CLFLUSH
| CPUID_PSE36
| CPUID_PAT
| CPUID_CMOV
| CPUID_MCA
|
1372 CPUID_PGE
| CPUID_MTRR
| CPUID_SEP
| CPUID_APIC
| CPUID_CX8
|
1373 CPUID_MCE
| CPUID_PAE
| CPUID_MSR
| CPUID_TSC
| CPUID_PSE
|
1374 CPUID_DE
| CPUID_FP87
,
1375 .features
[FEAT_1_ECX
] =
1376 CPUID_EXT_F16C
| CPUID_EXT_AVX
| CPUID_EXT_XSAVE
|
1377 CPUID_EXT_AES
| CPUID_EXT_POPCNT
| CPUID_EXT_SSE42
|
1378 CPUID_EXT_SSE41
| CPUID_EXT_CX16
| CPUID_EXT_FMA
|
1379 CPUID_EXT_SSSE3
| CPUID_EXT_PCLMULQDQ
| CPUID_EXT_SSE3
,
1380 /* Missing: CPUID_EXT2_RDTSCP */
1381 .features
[FEAT_8000_0001_EDX
] =
1383 CPUID_EXT2_PDPE1GB
| CPUID_EXT2_FXSR
| CPUID_EXT2_MMX
|
1384 CPUID_EXT2_NX
| CPUID_EXT2_PSE36
| CPUID_EXT2_PAT
|
1385 CPUID_EXT2_CMOV
| CPUID_EXT2_MCA
| CPUID_EXT2_PGE
|
1386 CPUID_EXT2_MTRR
| CPUID_EXT2_SYSCALL
| CPUID_EXT2_APIC
|
1387 CPUID_EXT2_CX8
| CPUID_EXT2_MCE
| CPUID_EXT2_PAE
| CPUID_EXT2_MSR
|
1388 CPUID_EXT2_TSC
| CPUID_EXT2_PSE
| CPUID_EXT2_DE
| CPUID_EXT2_FPU
,
1389 .features
[FEAT_8000_0001_ECX
] =
1390 CPUID_EXT3_TBM
| CPUID_EXT3_FMA4
| CPUID_EXT3_XOP
|
1391 CPUID_EXT3_3DNOWPREFETCH
| CPUID_EXT3_MISALIGNSSE
|
1392 CPUID_EXT3_SSE4A
| CPUID_EXT3_ABM
| CPUID_EXT3_SVM
|
1395 .xlevel
= 0x8000001A,
1396 .model_id
= "AMD Opteron 63xx class CPU",
1400 typedef struct PropValue
{
1401 const char *prop
, *value
;
1404 /* KVM-specific features that are automatically added/removed
1405 * from all CPU models when KVM is enabled.
1407 static PropValue kvm_default_props
[] = {
1408 { "kvmclock", "on" },
1409 { "kvm-nopiodelay", "on" },
1410 { "kvm-asyncpf", "on" },
1411 { "kvm-steal-time", "on" },
1412 { "kvm-pv-eoi", "on" },
1413 { "kvmclock-stable-bit", "on" },
1416 { "monitor", "off" },
1421 void x86_cpu_change_kvm_default(const char *prop
, const char *value
)
1424 for (pv
= kvm_default_props
; pv
->prop
; pv
++) {
1425 if (!strcmp(pv
->prop
, prop
)) {
1431 /* It is valid to call this function only for properties that
1432 * are already present in the kvm_default_props table.
1437 static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w
,
1438 bool migratable_only
);
1442 static int cpu_x86_fill_model_id(char *str
)
1444 uint32_t eax
= 0, ebx
= 0, ecx
= 0, edx
= 0;
1447 for (i
= 0; i
< 3; i
++) {
1448 host_cpuid(0x80000002 + i
, 0, &eax
, &ebx
, &ecx
, &edx
);
1449 memcpy(str
+ i
* 16 + 0, &eax
, 4);
1450 memcpy(str
+ i
* 16 + 4, &ebx
, 4);
1451 memcpy(str
+ i
* 16 + 8, &ecx
, 4);
1452 memcpy(str
+ i
* 16 + 12, &edx
, 4);
1457 static X86CPUDefinition host_cpudef
;
1459 static Property host_x86_cpu_properties
[] = {
1460 DEFINE_PROP_BOOL("migratable", X86CPU
, migratable
, true),
1461 DEFINE_PROP_BOOL("host-cache-info", X86CPU
, cache_info_passthrough
, false),
1462 DEFINE_PROP_END_OF_LIST()
1465 /* class_init for the "host" CPU model
1467 * This function may be called before KVM is initialized.
1469 static void host_x86_cpu_class_init(ObjectClass
*oc
, void *data
)
1471 DeviceClass
*dc
= DEVICE_CLASS(oc
);
1472 X86CPUClass
*xcc
= X86_CPU_CLASS(oc
);
1473 uint32_t eax
= 0, ebx
= 0, ecx
= 0, edx
= 0;
1475 xcc
->kvm_required
= true;
1477 host_cpuid(0x0, 0, &eax
, &ebx
, &ecx
, &edx
);
1478 x86_cpu_vendor_words2str(host_cpudef
.vendor
, ebx
, edx
, ecx
);
1480 host_cpuid(0x1, 0, &eax
, &ebx
, &ecx
, &edx
);
1481 host_cpudef
.family
= ((eax
>> 8) & 0x0F) + ((eax
>> 20) & 0xFF);
1482 host_cpudef
.model
= ((eax
>> 4) & 0x0F) | ((eax
& 0xF0000) >> 12);
1483 host_cpudef
.stepping
= eax
& 0x0F;
1485 cpu_x86_fill_model_id(host_cpudef
.model_id
);
1487 xcc
->cpu_def
= &host_cpudef
;
1489 /* level, xlevel, xlevel2, and the feature words are initialized on
1490 * instance_init, because they require KVM to be initialized.
1493 dc
->props
= host_x86_cpu_properties
;
1494 /* Reason: host_x86_cpu_initfn() dies when !kvm_enabled() */
1495 dc
->cannot_destroy_with_object_finalize_yet
= true;
1498 static void host_x86_cpu_initfn(Object
*obj
)
1500 X86CPU
*cpu
= X86_CPU(obj
);
1501 CPUX86State
*env
= &cpu
->env
;
1502 KVMState
*s
= kvm_state
;
1504 assert(kvm_enabled());
1506 /* We can't fill the features array here because we don't know yet if
1507 * "migratable" is true or false.
1509 cpu
->host_features
= true;
1511 env
->cpuid_level
= kvm_arch_get_supported_cpuid(s
, 0x0, 0, R_EAX
);
1512 env
->cpuid_xlevel
= kvm_arch_get_supported_cpuid(s
, 0x80000000, 0, R_EAX
);
1513 env
->cpuid_xlevel2
= kvm_arch_get_supported_cpuid(s
, 0xC0000000, 0, R_EAX
);
1515 object_property_set_bool(OBJECT(cpu
), true, "pmu", &error_abort
);
1518 static const TypeInfo host_x86_cpu_type_info
= {
1519 .name
= X86_CPU_TYPE_NAME("host"),
1520 .parent
= TYPE_X86_CPU
,
1521 .instance_init
= host_x86_cpu_initfn
,
1522 .class_init
= host_x86_cpu_class_init
,
1527 static void report_unavailable_features(FeatureWord w
, uint32_t mask
)
1529 FeatureWordInfo
*f
= &feature_word_info
[w
];
1532 for (i
= 0; i
< 32; ++i
) {
1533 if ((1UL << i
) & mask
) {
1534 const char *reg
= get_register_name_32(f
->cpuid_reg
);
1536 fprintf(stderr
, "warning: %s doesn't support requested feature: "
1537 "CPUID.%02XH:%s%s%s [bit %d]\n",
1538 kvm_enabled() ? "host" : "TCG",
1540 f
->feat_names
[i
] ? "." : "",
1541 f
->feat_names
[i
] ? f
->feat_names
[i
] : "", i
);
1546 static void x86_cpuid_version_get_family(Object
*obj
, Visitor
*v
,
1547 const char *name
, void *opaque
,
1550 X86CPU
*cpu
= X86_CPU(obj
);
1551 CPUX86State
*env
= &cpu
->env
;
1554 value
= (env
->cpuid_version
>> 8) & 0xf;
1556 value
+= (env
->cpuid_version
>> 20) & 0xff;
1558 visit_type_int(v
, name
, &value
, errp
);
1561 static void x86_cpuid_version_set_family(Object
*obj
, Visitor
*v
,
1562 const char *name
, void *opaque
,
1565 X86CPU
*cpu
= X86_CPU(obj
);
1566 CPUX86State
*env
= &cpu
->env
;
1567 const int64_t min
= 0;
1568 const int64_t max
= 0xff + 0xf;
1569 Error
*local_err
= NULL
;
1572 visit_type_int(v
, name
, &value
, &local_err
);
1574 error_propagate(errp
, local_err
);
1577 if (value
< min
|| value
> max
) {
1578 error_setg(errp
, QERR_PROPERTY_VALUE_OUT_OF_RANGE
, "",
1579 name
? name
: "null", value
, min
, max
);
1583 env
->cpuid_version
&= ~0xff00f00;
1585 env
->cpuid_version
|= 0xf00 | ((value
- 0x0f) << 20);
1587 env
->cpuid_version
|= value
<< 8;
1591 static void x86_cpuid_version_get_model(Object
*obj
, Visitor
*v
,
1592 const char *name
, void *opaque
,
1595 X86CPU
*cpu
= X86_CPU(obj
);
1596 CPUX86State
*env
= &cpu
->env
;
1599 value
= (env
->cpuid_version
>> 4) & 0xf;
1600 value
|= ((env
->cpuid_version
>> 16) & 0xf) << 4;
1601 visit_type_int(v
, name
, &value
, errp
);
1604 static void x86_cpuid_version_set_model(Object
*obj
, Visitor
*v
,
1605 const char *name
, void *opaque
,
1608 X86CPU
*cpu
= X86_CPU(obj
);
1609 CPUX86State
*env
= &cpu
->env
;
1610 const int64_t min
= 0;
1611 const int64_t max
= 0xff;
1612 Error
*local_err
= NULL
;
1615 visit_type_int(v
, name
, &value
, &local_err
);
1617 error_propagate(errp
, local_err
);
1620 if (value
< min
|| value
> max
) {
1621 error_setg(errp
, QERR_PROPERTY_VALUE_OUT_OF_RANGE
, "",
1622 name
? name
: "null", value
, min
, max
);
1626 env
->cpuid_version
&= ~0xf00f0;
1627 env
->cpuid_version
|= ((value
& 0xf) << 4) | ((value
>> 4) << 16);
1630 static void x86_cpuid_version_get_stepping(Object
*obj
, Visitor
*v
,
1631 const char *name
, void *opaque
,
1634 X86CPU
*cpu
= X86_CPU(obj
);
1635 CPUX86State
*env
= &cpu
->env
;
1638 value
= env
->cpuid_version
& 0xf;
1639 visit_type_int(v
, name
, &value
, errp
);
1642 static void x86_cpuid_version_set_stepping(Object
*obj
, Visitor
*v
,
1643 const char *name
, void *opaque
,
1646 X86CPU
*cpu
= X86_CPU(obj
);
1647 CPUX86State
*env
= &cpu
->env
;
1648 const int64_t min
= 0;
1649 const int64_t max
= 0xf;
1650 Error
*local_err
= NULL
;
1653 visit_type_int(v
, name
, &value
, &local_err
);
1655 error_propagate(errp
, local_err
);
1658 if (value
< min
|| value
> max
) {
1659 error_setg(errp
, QERR_PROPERTY_VALUE_OUT_OF_RANGE
, "",
1660 name
? name
: "null", value
, min
, max
);
1664 env
->cpuid_version
&= ~0xf;
1665 env
->cpuid_version
|= value
& 0xf;
1668 static char *x86_cpuid_get_vendor(Object
*obj
, Error
**errp
)
1670 X86CPU
*cpu
= X86_CPU(obj
);
1671 CPUX86State
*env
= &cpu
->env
;
1674 value
= g_malloc(CPUID_VENDOR_SZ
+ 1);
1675 x86_cpu_vendor_words2str(value
, env
->cpuid_vendor1
, env
->cpuid_vendor2
,
1676 env
->cpuid_vendor3
);
1680 static void x86_cpuid_set_vendor(Object
*obj
, const char *value
,
1683 X86CPU
*cpu
= X86_CPU(obj
);
1684 CPUX86State
*env
= &cpu
->env
;
1687 if (strlen(value
) != CPUID_VENDOR_SZ
) {
1688 error_setg(errp
, QERR_PROPERTY_VALUE_BAD
, "", "vendor", value
);
1692 env
->cpuid_vendor1
= 0;
1693 env
->cpuid_vendor2
= 0;
1694 env
->cpuid_vendor3
= 0;
1695 for (i
= 0; i
< 4; i
++) {
1696 env
->cpuid_vendor1
|= ((uint8_t)value
[i
]) << (8 * i
);
1697 env
->cpuid_vendor2
|= ((uint8_t)value
[i
+ 4]) << (8 * i
);
1698 env
->cpuid_vendor3
|= ((uint8_t)value
[i
+ 8]) << (8 * i
);
1702 static char *x86_cpuid_get_model_id(Object
*obj
, Error
**errp
)
1704 X86CPU
*cpu
= X86_CPU(obj
);
1705 CPUX86State
*env
= &cpu
->env
;
1709 value
= g_malloc(48 + 1);
1710 for (i
= 0; i
< 48; i
++) {
1711 value
[i
] = env
->cpuid_model
[i
>> 2] >> (8 * (i
& 3));
1717 static void x86_cpuid_set_model_id(Object
*obj
, const char *model_id
,
1720 X86CPU
*cpu
= X86_CPU(obj
);
1721 CPUX86State
*env
= &cpu
->env
;
1724 if (model_id
== NULL
) {
1727 len
= strlen(model_id
);
1728 memset(env
->cpuid_model
, 0, 48);
1729 for (i
= 0; i
< 48; i
++) {
1733 c
= (uint8_t)model_id
[i
];
1735 env
->cpuid_model
[i
>> 2] |= c
<< (8 * (i
& 3));
1739 static void x86_cpuid_get_tsc_freq(Object
*obj
, Visitor
*v
, const char *name
,
1740 void *opaque
, Error
**errp
)
1742 X86CPU
*cpu
= X86_CPU(obj
);
1745 value
= cpu
->env
.tsc_khz
* 1000;
1746 visit_type_int(v
, name
, &value
, errp
);
1749 static void x86_cpuid_set_tsc_freq(Object
*obj
, Visitor
*v
, const char *name
,
1750 void *opaque
, Error
**errp
)
1752 X86CPU
*cpu
= X86_CPU(obj
);
1753 const int64_t min
= 0;
1754 const int64_t max
= INT64_MAX
;
1755 Error
*local_err
= NULL
;
1758 visit_type_int(v
, name
, &value
, &local_err
);
1760 error_propagate(errp
, local_err
);
1763 if (value
< min
|| value
> max
) {
1764 error_setg(errp
, QERR_PROPERTY_VALUE_OUT_OF_RANGE
, "",
1765 name
? name
: "null", value
, min
, max
);
1769 cpu
->env
.tsc_khz
= cpu
->env
.user_tsc_khz
= value
/ 1000;
1772 static void x86_cpuid_get_apic_id(Object
*obj
, Visitor
*v
, const char *name
,
1773 void *opaque
, Error
**errp
)
1775 X86CPU
*cpu
= X86_CPU(obj
);
1776 int64_t value
= cpu
->apic_id
;
1778 visit_type_int(v
, name
, &value
, errp
);
1781 static void x86_cpuid_set_apic_id(Object
*obj
, Visitor
*v
, const char *name
,
1782 void *opaque
, Error
**errp
)
1784 X86CPU
*cpu
= X86_CPU(obj
);
1785 DeviceState
*dev
= DEVICE(obj
);
1786 const int64_t min
= 0;
1787 const int64_t max
= UINT32_MAX
;
1788 Error
*error
= NULL
;
1791 if (dev
->realized
) {
1792 error_setg(errp
, "Attempt to set property '%s' on '%s' after "
1793 "it was realized", name
, object_get_typename(obj
));
1797 visit_type_int(v
, name
, &value
, &error
);
1799 error_propagate(errp
, error
);
1802 if (value
< min
|| value
> max
) {
1803 error_setg(errp
, "Property %s.%s doesn't take value %" PRId64
1804 " (minimum: %" PRId64
", maximum: %" PRId64
")" ,
1805 object_get_typename(obj
), name
, value
, min
, max
);
1809 if ((value
!= cpu
->apic_id
) && cpu_exists(value
)) {
1810 error_setg(errp
, "CPU with APIC ID %" PRIi64
" exists", value
);
1813 cpu
->apic_id
= value
;
1816 /* Generic getter for "feature-words" and "filtered-features" properties */
1817 static void x86_cpu_get_feature_words(Object
*obj
, Visitor
*v
,
1818 const char *name
, void *opaque
,
1821 uint32_t *array
= (uint32_t *)opaque
;
1824 X86CPUFeatureWordInfo word_infos
[FEATURE_WORDS
] = { };
1825 X86CPUFeatureWordInfoList list_entries
[FEATURE_WORDS
] = { };
1826 X86CPUFeatureWordInfoList
*list
= NULL
;
1828 for (w
= 0; w
< FEATURE_WORDS
; w
++) {
1829 FeatureWordInfo
*wi
= &feature_word_info
[w
];
1830 X86CPUFeatureWordInfo
*qwi
= &word_infos
[w
];
1831 qwi
->cpuid_input_eax
= wi
->cpuid_eax
;
1832 qwi
->has_cpuid_input_ecx
= wi
->cpuid_needs_ecx
;
1833 qwi
->cpuid_input_ecx
= wi
->cpuid_ecx
;
1834 qwi
->cpuid_register
= x86_reg_info_32
[wi
->cpuid_reg
].qapi_enum
;
1835 qwi
->features
= array
[w
];
1837 /* List will be in reverse order, but order shouldn't matter */
1838 list_entries
[w
].next
= list
;
1839 list_entries
[w
].value
= &word_infos
[w
];
1840 list
= &list_entries
[w
];
1843 visit_type_X86CPUFeatureWordInfoList(v
, "feature-words", &list
, &err
);
1844 error_propagate(errp
, err
);
1847 static void x86_get_hv_spinlocks(Object
*obj
, Visitor
*v
, const char *name
,
1848 void *opaque
, Error
**errp
)
1850 X86CPU
*cpu
= X86_CPU(obj
);
1851 int64_t value
= cpu
->hyperv_spinlock_attempts
;
1853 visit_type_int(v
, name
, &value
, errp
);
1856 static void x86_set_hv_spinlocks(Object
*obj
, Visitor
*v
, const char *name
,
1857 void *opaque
, Error
**errp
)
1859 const int64_t min
= 0xFFF;
1860 const int64_t max
= UINT_MAX
;
1861 X86CPU
*cpu
= X86_CPU(obj
);
1865 visit_type_int(v
, name
, &value
, &err
);
1867 error_propagate(errp
, err
);
1871 if (value
< min
|| value
> max
) {
1872 error_setg(errp
, "Property %s.%s doesn't take value %" PRId64
1873 " (minimum: %" PRId64
", maximum: %" PRId64
")",
1874 object_get_typename(obj
), name
? name
: "null",
1878 cpu
->hyperv_spinlock_attempts
= value
;
1881 static PropertyInfo qdev_prop_spinlocks
= {
1883 .get
= x86_get_hv_spinlocks
,
1884 .set
= x86_set_hv_spinlocks
,
1887 /* Convert all '_' in a feature string option name to '-', to make feature
1888 * name conform to QOM property naming rule, which uses '-' instead of '_'.
1890 static inline void feat2prop(char *s
)
1892 while ((s
= strchr(s
, '_'))) {
1897 /* Parse "+feature,-feature,feature=foo" CPU feature string
1899 static void x86_cpu_parse_featurestr(CPUState
*cs
, char *features
,
1902 X86CPU
*cpu
= X86_CPU(cs
);
1903 char *featurestr
; /* Single 'key=value" string being parsed */
1905 /* Features to be added */
1906 FeatureWordArray plus_features
= { 0 };
1907 /* Features to be removed */
1908 FeatureWordArray minus_features
= { 0 };
1910 CPUX86State
*env
= &cpu
->env
;
1911 Error
*local_err
= NULL
;
1913 featurestr
= features
? strtok(features
, ",") : NULL
;
1915 while (featurestr
) {
1917 if (featurestr
[0] == '+') {
1918 add_flagname_to_bitmaps(featurestr
+ 1, plus_features
, &local_err
);
1919 } else if (featurestr
[0] == '-') {
1920 add_flagname_to_bitmaps(featurestr
+ 1, minus_features
, &local_err
);
1921 } else if ((val
= strchr(featurestr
, '='))) {
1923 feat2prop(featurestr
);
1924 if (!strcmp(featurestr
, "xlevel")) {
1928 numvalue
= strtoul(val
, &err
, 0);
1929 if (!*val
|| *err
) {
1930 error_setg(errp
, "bad numerical value %s", val
);
1933 if (numvalue
< 0x80000000) {
1934 error_report("xlevel value shall always be >= 0x80000000"
1935 ", fixup will be removed in future versions");
1936 numvalue
+= 0x80000000;
1938 snprintf(num
, sizeof(num
), "%" PRIu32
, numvalue
);
1939 object_property_parse(OBJECT(cpu
), num
, featurestr
, &local_err
);
1940 } else if (!strcmp(featurestr
, "tsc-freq")) {
1945 tsc_freq
= qemu_strtosz_suffix_unit(val
, &err
,
1946 QEMU_STRTOSZ_DEFSUFFIX_B
, 1000);
1947 if (tsc_freq
< 0 || *err
) {
1948 error_setg(errp
, "bad numerical value %s", val
);
1951 snprintf(num
, sizeof(num
), "%" PRId64
, tsc_freq
);
1952 object_property_parse(OBJECT(cpu
), num
, "tsc-frequency",
1954 } else if (!strcmp(featurestr
, "hv-spinlocks")) {
1956 const int min
= 0xFFF;
1958 numvalue
= strtoul(val
, &err
, 0);
1959 if (!*val
|| *err
) {
1960 error_setg(errp
, "bad numerical value %s", val
);
1963 if (numvalue
< min
) {
1964 error_report("hv-spinlocks value shall always be >= 0x%x"
1965 ", fixup will be removed in future versions",
1969 snprintf(num
, sizeof(num
), "%" PRId32
, numvalue
);
1970 object_property_parse(OBJECT(cpu
), num
, featurestr
, &local_err
);
1972 object_property_parse(OBJECT(cpu
), val
, featurestr
, &local_err
);
1975 feat2prop(featurestr
);
1976 object_property_parse(OBJECT(cpu
), "on", featurestr
, &local_err
);
1979 error_propagate(errp
, local_err
);
1982 featurestr
= strtok(NULL
, ",");
1985 if (cpu
->host_features
) {
1986 for (w
= 0; w
< FEATURE_WORDS
; w
++) {
1988 x86_cpu_get_supported_feature_word(w
, cpu
->migratable
);
1992 for (w
= 0; w
< FEATURE_WORDS
; w
++) {
1993 env
->features
[w
] |= plus_features
[w
];
1994 env
->features
[w
] &= ~minus_features
[w
];
1998 /* Print all cpuid feature names in featureset
2000 static void listflags(FILE *f
, fprintf_function print
, const char **featureset
)
2005 for (bit
= 0; bit
< 32; bit
++) {
2006 if (featureset
[bit
]) {
2007 print(f
, "%s%s", first
? "" : " ", featureset
[bit
]);
2013 /* generate CPU information. */
2014 void x86_cpu_list(FILE *f
, fprintf_function cpu_fprintf
)
2016 X86CPUDefinition
*def
;
2020 for (i
= 0; i
< ARRAY_SIZE(builtin_x86_defs
); i
++) {
2021 def
= &builtin_x86_defs
[i
];
2022 snprintf(buf
, sizeof(buf
), "%s", def
->name
);
2023 (*cpu_fprintf
)(f
, "x86 %16s %-48s\n", buf
, def
->model_id
);
2026 (*cpu_fprintf
)(f
, "x86 %16s %-48s\n", "host",
2027 "KVM processor with all supported host features "
2028 "(only available in KVM mode)");
2031 (*cpu_fprintf
)(f
, "\nRecognized CPUID flags:\n");
2032 for (i
= 0; i
< ARRAY_SIZE(feature_word_info
); i
++) {
2033 FeatureWordInfo
*fw
= &feature_word_info
[i
];
2035 (*cpu_fprintf
)(f
, " ");
2036 listflags(f
, cpu_fprintf
, fw
->feat_names
);
2037 (*cpu_fprintf
)(f
, "\n");
2041 CpuDefinitionInfoList
*arch_query_cpu_definitions(Error
**errp
)
2043 CpuDefinitionInfoList
*cpu_list
= NULL
;
2044 X86CPUDefinition
*def
;
2047 for (i
= 0; i
< ARRAY_SIZE(builtin_x86_defs
); i
++) {
2048 CpuDefinitionInfoList
*entry
;
2049 CpuDefinitionInfo
*info
;
2051 def
= &builtin_x86_defs
[i
];
2052 info
= g_malloc0(sizeof(*info
));
2053 info
->name
= g_strdup(def
->name
);
2055 entry
= g_malloc0(sizeof(*entry
));
2056 entry
->value
= info
;
2057 entry
->next
= cpu_list
;
2064 static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w
,
2065 bool migratable_only
)
2067 FeatureWordInfo
*wi
= &feature_word_info
[w
];
2070 if (kvm_enabled()) {
2071 r
= kvm_arch_get_supported_cpuid(kvm_state
, wi
->cpuid_eax
,
2074 } else if (tcg_enabled()) {
2075 r
= wi
->tcg_features
;
2079 if (migratable_only
) {
2080 r
&= x86_cpu_get_migratable_flags(w
);
2086 * Filters CPU feature words based on host availability of each feature.
2088 * Returns: 0 if all flags are supported by the host, non-zero otherwise.
2090 static int x86_cpu_filter_features(X86CPU
*cpu
)
2092 CPUX86State
*env
= &cpu
->env
;
2096 for (w
= 0; w
< FEATURE_WORDS
; w
++) {
2097 uint32_t host_feat
=
2098 x86_cpu_get_supported_feature_word(w
, cpu
->migratable
);
2099 uint32_t requested_features
= env
->features
[w
];
2100 env
->features
[w
] &= host_feat
;
2101 cpu
->filtered_features
[w
] = requested_features
& ~env
->features
[w
];
2102 if (cpu
->filtered_features
[w
]) {
2103 if (cpu
->check_cpuid
|| cpu
->enforce_cpuid
) {
2104 report_unavailable_features(w
, cpu
->filtered_features
[w
]);
2113 static void x86_cpu_apply_props(X86CPU
*cpu
, PropValue
*props
)
2116 for (pv
= props
; pv
->prop
; pv
++) {
2120 object_property_parse(OBJECT(cpu
), pv
->value
, pv
->prop
,
2125 /* Load data from X86CPUDefinition
2127 static void x86_cpu_load_def(X86CPU
*cpu
, X86CPUDefinition
*def
, Error
**errp
)
2129 CPUX86State
*env
= &cpu
->env
;
2131 char host_vendor
[CPUID_VENDOR_SZ
+ 1];
2134 object_property_set_int(OBJECT(cpu
), def
->level
, "level", errp
);
2135 object_property_set_int(OBJECT(cpu
), def
->family
, "family", errp
);
2136 object_property_set_int(OBJECT(cpu
), def
->model
, "model", errp
);
2137 object_property_set_int(OBJECT(cpu
), def
->stepping
, "stepping", errp
);
2138 object_property_set_int(OBJECT(cpu
), def
->xlevel
, "xlevel", errp
);
2139 object_property_set_int(OBJECT(cpu
), def
->xlevel2
, "xlevel2", errp
);
2140 object_property_set_str(OBJECT(cpu
), def
->model_id
, "model-id", errp
);
2141 for (w
= 0; w
< FEATURE_WORDS
; w
++) {
2142 env
->features
[w
] = def
->features
[w
];
2145 /* Special cases not set in the X86CPUDefinition structs: */
2146 if (kvm_enabled()) {
2147 if (!kvm_irqchip_in_kernel()) {
2148 x86_cpu_change_kvm_default("x2apic", "off");
2151 x86_cpu_apply_props(cpu
, kvm_default_props
);
2154 env
->features
[FEAT_1_ECX
] |= CPUID_EXT_HYPERVISOR
;
2156 /* sysenter isn't supported in compatibility mode on AMD,
2157 * syscall isn't supported in compatibility mode on Intel.
2158 * Normally we advertise the actual CPU vendor, but you can
2159 * override this using the 'vendor' property if you want to use
2160 * KVM's sysenter/syscall emulation in compatibility mode and
2161 * when doing cross vendor migration
2163 vendor
= def
->vendor
;
2164 if (kvm_enabled()) {
2165 uint32_t ebx
= 0, ecx
= 0, edx
= 0;
2166 host_cpuid(0, 0, NULL
, &ebx
, &ecx
, &edx
);
2167 x86_cpu_vendor_words2str(host_vendor
, ebx
, edx
, ecx
);
2168 vendor
= host_vendor
;
2171 object_property_set_str(OBJECT(cpu
), vendor
, "vendor", errp
);
2175 X86CPU
*cpu_x86_create(const char *cpu_model
, Error
**errp
)
2180 gchar
**model_pieces
;
2181 char *name
, *features
;
2182 Error
*error
= NULL
;
2184 model_pieces
= g_strsplit(cpu_model
, ",", 2);
2185 if (!model_pieces
[0]) {
2186 error_setg(&error
, "Invalid/empty CPU model name");
2189 name
= model_pieces
[0];
2190 features
= model_pieces
[1];
2192 oc
= x86_cpu_class_by_name(name
);
2194 error_setg(&error
, "Unable to find CPU definition: %s", name
);
2197 xcc
= X86_CPU_CLASS(oc
);
2199 if (xcc
->kvm_required
&& !kvm_enabled()) {
2200 error_setg(&error
, "CPU model '%s' requires KVM", name
);
2204 cpu
= X86_CPU(object_new(object_class_get_name(oc
)));
2206 x86_cpu_parse_featurestr(CPU(cpu
), features
, &error
);
2212 if (error
!= NULL
) {
2213 error_propagate(errp
, error
);
2215 object_unref(OBJECT(cpu
));
2219 g_strfreev(model_pieces
);
2223 X86CPU
*cpu_x86_init(const char *cpu_model
)
2225 Error
*error
= NULL
;
2228 cpu
= cpu_x86_create(cpu_model
, &error
);
2233 object_property_set_bool(OBJECT(cpu
), true, "realized", &error
);
2237 error_report_err(error
);
2239 object_unref(OBJECT(cpu
));
2246 static void x86_cpu_cpudef_class_init(ObjectClass
*oc
, void *data
)
2248 X86CPUDefinition
*cpudef
= data
;
2249 X86CPUClass
*xcc
= X86_CPU_CLASS(oc
);
2251 xcc
->cpu_def
= cpudef
;
2254 static void x86_register_cpudef_type(X86CPUDefinition
*def
)
2256 char *typename
= x86_cpu_type_name(def
->name
);
2259 .parent
= TYPE_X86_CPU
,
2260 .class_init
= x86_cpu_cpudef_class_init
,
2268 #if !defined(CONFIG_USER_ONLY)
2270 void cpu_clear_apic_feature(CPUX86State
*env
)
2272 env
->features
[FEAT_1_EDX
] &= ~CPUID_APIC
;
2275 #endif /* !CONFIG_USER_ONLY */
2277 void cpu_x86_cpuid(CPUX86State
*env
, uint32_t index
, uint32_t count
,
2278 uint32_t *eax
, uint32_t *ebx
,
2279 uint32_t *ecx
, uint32_t *edx
)
2281 X86CPU
*cpu
= x86_env_get_cpu(env
);
2282 CPUState
*cs
= CPU(cpu
);
2284 /* test if maximum index reached */
2285 if (index
& 0x80000000) {
2286 if (index
> env
->cpuid_xlevel
) {
2287 if (env
->cpuid_xlevel2
> 0) {
2288 /* Handle the Centaur's CPUID instruction. */
2289 if (index
> env
->cpuid_xlevel2
) {
2290 index
= env
->cpuid_xlevel2
;
2291 } else if (index
< 0xC0000000) {
2292 index
= env
->cpuid_xlevel
;
2295 /* Intel documentation states that invalid EAX input will
2296 * return the same information as EAX=cpuid_level
2297 * (Intel SDM Vol. 2A - Instruction Set Reference - CPUID)
2299 index
= env
->cpuid_level
;
2303 if (index
> env
->cpuid_level
)
2304 index
= env
->cpuid_level
;
2309 *eax
= env
->cpuid_level
;
2310 *ebx
= env
->cpuid_vendor1
;
2311 *edx
= env
->cpuid_vendor2
;
2312 *ecx
= env
->cpuid_vendor3
;
2315 *eax
= env
->cpuid_version
;
2316 *ebx
= (cpu
->apic_id
<< 24) |
2317 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
2318 *ecx
= env
->features
[FEAT_1_ECX
];
2319 if ((*ecx
& CPUID_EXT_XSAVE
) && (env
->cr
[4] & CR4_OSXSAVE_MASK
)) {
2320 *ecx
|= CPUID_EXT_OSXSAVE
;
2322 *edx
= env
->features
[FEAT_1_EDX
];
2323 if (cs
->nr_cores
* cs
->nr_threads
> 1) {
2324 *ebx
|= (cs
->nr_cores
* cs
->nr_threads
) << 16;
2329 /* cache info: needed for Pentium Pro compatibility */
2330 if (cpu
->cache_info_passthrough
) {
2331 host_cpuid(index
, 0, eax
, ebx
, ecx
, edx
);
2334 *eax
= 1; /* Number of CPUID[EAX=2] calls required */
2337 *edx
= (L1D_DESCRIPTOR
<< 16) | \
2338 (L1I_DESCRIPTOR
<< 8) | \
2342 /* cache info: needed for Core compatibility */
2343 if (cpu
->cache_info_passthrough
) {
2344 host_cpuid(index
, count
, eax
, ebx
, ecx
, edx
);
2345 *eax
&= ~0xFC000000;
2349 case 0: /* L1 dcache info */
2350 *eax
|= CPUID_4_TYPE_DCACHE
| \
2351 CPUID_4_LEVEL(1) | \
2352 CPUID_4_SELF_INIT_LEVEL
;
2353 *ebx
= (L1D_LINE_SIZE
- 1) | \
2354 ((L1D_PARTITIONS
- 1) << 12) | \
2355 ((L1D_ASSOCIATIVITY
- 1) << 22);
2356 *ecx
= L1D_SETS
- 1;
2357 *edx
= CPUID_4_NO_INVD_SHARING
;
2359 case 1: /* L1 icache info */
2360 *eax
|= CPUID_4_TYPE_ICACHE
| \
2361 CPUID_4_LEVEL(1) | \
2362 CPUID_4_SELF_INIT_LEVEL
;
2363 *ebx
= (L1I_LINE_SIZE
- 1) | \
2364 ((L1I_PARTITIONS
- 1) << 12) | \
2365 ((L1I_ASSOCIATIVITY
- 1) << 22);
2366 *ecx
= L1I_SETS
- 1;
2367 *edx
= CPUID_4_NO_INVD_SHARING
;
2369 case 2: /* L2 cache info */
2370 *eax
|= CPUID_4_TYPE_UNIFIED
| \
2371 CPUID_4_LEVEL(2) | \
2372 CPUID_4_SELF_INIT_LEVEL
;
2373 if (cs
->nr_threads
> 1) {
2374 *eax
|= (cs
->nr_threads
- 1) << 14;
2376 *ebx
= (L2_LINE_SIZE
- 1) | \
2377 ((L2_PARTITIONS
- 1) << 12) | \
2378 ((L2_ASSOCIATIVITY
- 1) << 22);
2380 *edx
= CPUID_4_NO_INVD_SHARING
;
2382 default: /* end of info */
2391 /* QEMU gives out its own APIC IDs, never pass down bits 31..26. */
2392 if ((*eax
& 31) && cs
->nr_cores
> 1) {
2393 *eax
|= (cs
->nr_cores
- 1) << 26;
2397 /* mwait info: needed for Core compatibility */
2398 *eax
= 0; /* Smallest monitor-line size in bytes */
2399 *ebx
= 0; /* Largest monitor-line size in bytes */
2400 *ecx
= CPUID_MWAIT_EMX
| CPUID_MWAIT_IBE
;
2404 /* Thermal and Power Leaf */
2405 *eax
= env
->features
[FEAT_6_EAX
];
2411 /* Structured Extended Feature Flags Enumeration Leaf */
2413 *eax
= 0; /* Maximum ECX value for sub-leaves */
2414 *ebx
= env
->features
[FEAT_7_0_EBX
]; /* Feature flags */
2415 *ecx
= env
->features
[FEAT_7_0_ECX
]; /* Feature flags */
2416 if ((*ecx
& CPUID_7_0_ECX_PKU
) && env
->cr
[4] & CR4_PKE_MASK
) {
2417 *ecx
|= CPUID_7_0_ECX_OSPKE
;
2419 *edx
= 0; /* Reserved */
2428 /* Direct Cache Access Information Leaf */
2429 *eax
= 0; /* Bits 0-31 in DCA_CAP MSR */
2435 /* Architectural Performance Monitoring Leaf */
2436 if (kvm_enabled() && cpu
->enable_pmu
) {
2437 KVMState
*s
= cs
->kvm_state
;
2439 *eax
= kvm_arch_get_supported_cpuid(s
, 0xA, count
, R_EAX
);
2440 *ebx
= kvm_arch_get_supported_cpuid(s
, 0xA, count
, R_EBX
);
2441 *ecx
= kvm_arch_get_supported_cpuid(s
, 0xA, count
, R_ECX
);
2442 *edx
= kvm_arch_get_supported_cpuid(s
, 0xA, count
, R_EDX
);
2451 KVMState
*s
= cs
->kvm_state
;
2455 /* Processor Extended State */
2460 if (!(env
->features
[FEAT_1_ECX
] & CPUID_EXT_XSAVE
)) {
2463 if (kvm_enabled()) {
2464 ena_mask
= kvm_arch_get_supported_cpuid(s
, 0xd, 0, R_EDX
);
2466 ena_mask
|= kvm_arch_get_supported_cpuid(s
, 0xd, 0, R_EAX
);
2473 for (i
= 2; i
< ARRAY_SIZE(x86_ext_save_areas
); i
++) {
2474 const ExtSaveArea
*esa
= &x86_ext_save_areas
[i
];
2475 if ((env
->features
[esa
->feature
] & esa
->bits
) == esa
->bits
2476 && ((ena_mask
>> i
) & 1) != 0) {
2480 *edx
|= 1u << (i
- 32);
2482 *ecx
= MAX(*ecx
, esa
->offset
+ esa
->size
);
2485 *eax
|= ena_mask
& (XSTATE_FP_MASK
| XSTATE_SSE_MASK
);
2487 } else if (count
== 1) {
2488 *eax
= env
->features
[FEAT_XSAVE
];
2489 } else if (count
< ARRAY_SIZE(x86_ext_save_areas
)) {
2490 const ExtSaveArea
*esa
= &x86_ext_save_areas
[count
];
2491 if ((env
->features
[esa
->feature
] & esa
->bits
) == esa
->bits
2492 && ((ena_mask
>> count
) & 1) != 0) {
2500 *eax
= env
->cpuid_xlevel
;
2501 *ebx
= env
->cpuid_vendor1
;
2502 *edx
= env
->cpuid_vendor2
;
2503 *ecx
= env
->cpuid_vendor3
;
2506 *eax
= env
->cpuid_version
;
2508 *ecx
= env
->features
[FEAT_8000_0001_ECX
];
2509 *edx
= env
->features
[FEAT_8000_0001_EDX
];
2511 /* The Linux kernel checks for the CMPLegacy bit and
2512 * discards multiple thread information if it is set.
2513 * So don't set it here for Intel to make Linux guests happy.
2515 if (cs
->nr_cores
* cs
->nr_threads
> 1) {
2516 if (env
->cpuid_vendor1
!= CPUID_VENDOR_INTEL_1
||
2517 env
->cpuid_vendor2
!= CPUID_VENDOR_INTEL_2
||
2518 env
->cpuid_vendor3
!= CPUID_VENDOR_INTEL_3
) {
2519 *ecx
|= 1 << 1; /* CmpLegacy bit */
2526 *eax
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 0];
2527 *ebx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 1];
2528 *ecx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 2];
2529 *edx
= env
->cpuid_model
[(index
- 0x80000002) * 4 + 3];
2532 /* cache info (L1 cache) */
2533 if (cpu
->cache_info_passthrough
) {
2534 host_cpuid(index
, 0, eax
, ebx
, ecx
, edx
);
2537 *eax
= (L1_DTLB_2M_ASSOC
<< 24) | (L1_DTLB_2M_ENTRIES
<< 16) | \
2538 (L1_ITLB_2M_ASSOC
<< 8) | (L1_ITLB_2M_ENTRIES
);
2539 *ebx
= (L1_DTLB_4K_ASSOC
<< 24) | (L1_DTLB_4K_ENTRIES
<< 16) | \
2540 (L1_ITLB_4K_ASSOC
<< 8) | (L1_ITLB_4K_ENTRIES
);
2541 *ecx
= (L1D_SIZE_KB_AMD
<< 24) | (L1D_ASSOCIATIVITY_AMD
<< 16) | \
2542 (L1D_LINES_PER_TAG
<< 8) | (L1D_LINE_SIZE
);
2543 *edx
= (L1I_SIZE_KB_AMD
<< 24) | (L1I_ASSOCIATIVITY_AMD
<< 16) | \
2544 (L1I_LINES_PER_TAG
<< 8) | (L1I_LINE_SIZE
);
2547 /* cache info (L2 cache) */
2548 if (cpu
->cache_info_passthrough
) {
2549 host_cpuid(index
, 0, eax
, ebx
, ecx
, edx
);
2552 *eax
= (AMD_ENC_ASSOC(L2_DTLB_2M_ASSOC
) << 28) | \
2553 (L2_DTLB_2M_ENTRIES
<< 16) | \
2554 (AMD_ENC_ASSOC(L2_ITLB_2M_ASSOC
) << 12) | \
2555 (L2_ITLB_2M_ENTRIES
);
2556 *ebx
= (AMD_ENC_ASSOC(L2_DTLB_4K_ASSOC
) << 28) | \
2557 (L2_DTLB_4K_ENTRIES
<< 16) | \
2558 (AMD_ENC_ASSOC(L2_ITLB_4K_ASSOC
) << 12) | \
2559 (L2_ITLB_4K_ENTRIES
);
2560 *ecx
= (L2_SIZE_KB_AMD
<< 16) | \
2561 (AMD_ENC_ASSOC(L2_ASSOCIATIVITY
) << 12) | \
2562 (L2_LINES_PER_TAG
<< 8) | (L2_LINE_SIZE
);
2563 *edx
= ((L3_SIZE_KB
/512) << 18) | \
2564 (AMD_ENC_ASSOC(L3_ASSOCIATIVITY
) << 12) | \
2565 (L3_LINES_PER_TAG
<< 8) | (L3_LINE_SIZE
);
2571 *edx
= env
->features
[FEAT_8000_0007_EDX
];
2574 /* virtual & phys address size in low 2 bytes. */
2575 /* XXX: This value must match the one used in the MMU code. */
2576 if (env
->features
[FEAT_8000_0001_EDX
] & CPUID_EXT2_LM
) {
2577 /* 64 bit processor */
2578 /* XXX: The physical address space is limited to 42 bits in exec.c. */
2579 *eax
= 0x00003028; /* 48 bits virtual, 40 bits physical */
2581 if (env
->features
[FEAT_1_EDX
] & CPUID_PSE36
) {
2582 *eax
= 0x00000024; /* 36 bits physical */
2584 *eax
= 0x00000020; /* 32 bits physical */
2590 if (cs
->nr_cores
* cs
->nr_threads
> 1) {
2591 *ecx
|= (cs
->nr_cores
* cs
->nr_threads
) - 1;
2595 if (env
->features
[FEAT_8000_0001_ECX
] & CPUID_EXT3_SVM
) {
2596 *eax
= 0x00000001; /* SVM Revision */
2597 *ebx
= 0x00000010; /* nr of ASIDs */
2599 *edx
= env
->features
[FEAT_SVM
]; /* optional features */
2608 *eax
= env
->cpuid_xlevel2
;
2614 /* Support for VIA CPU's CPUID instruction */
2615 *eax
= env
->cpuid_version
;
2618 *edx
= env
->features
[FEAT_C000_0001_EDX
];
2623 /* Reserved for the future, and now filled with zero */
2630 /* reserved values: zero */
2639 /* CPUClass::reset() */
2640 static void x86_cpu_reset(CPUState
*s
)
2642 X86CPU
*cpu
= X86_CPU(s
);
2643 X86CPUClass
*xcc
= X86_CPU_GET_CLASS(cpu
);
2644 CPUX86State
*env
= &cpu
->env
;
2649 xcc
->parent_reset(s
);
2651 memset(env
, 0, offsetof(CPUX86State
, cpuid_level
));
2655 env
->old_exception
= -1;
2657 /* init to reset state */
2659 #ifdef CONFIG_SOFTMMU
2660 env
->hflags
|= HF_SOFTMMU_MASK
;
2662 env
->hflags2
|= HF2_GIF_MASK
;
2664 cpu_x86_update_cr0(env
, 0x60000010);
2665 env
->a20_mask
= ~0x0;
2666 env
->smbase
= 0x30000;
2668 env
->idt
.limit
= 0xffff;
2669 env
->gdt
.limit
= 0xffff;
2670 env
->ldt
.limit
= 0xffff;
2671 env
->ldt
.flags
= DESC_P_MASK
| (2 << DESC_TYPE_SHIFT
);
2672 env
->tr
.limit
= 0xffff;
2673 env
->tr
.flags
= DESC_P_MASK
| (11 << DESC_TYPE_SHIFT
);
2675 cpu_x86_load_seg_cache(env
, R_CS
, 0xf000, 0xffff0000, 0xffff,
2676 DESC_P_MASK
| DESC_S_MASK
| DESC_CS_MASK
|
2677 DESC_R_MASK
| DESC_A_MASK
);
2678 cpu_x86_load_seg_cache(env
, R_DS
, 0, 0, 0xffff,
2679 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
2681 cpu_x86_load_seg_cache(env
, R_ES
, 0, 0, 0xffff,
2682 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
2684 cpu_x86_load_seg_cache(env
, R_SS
, 0, 0, 0xffff,
2685 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
2687 cpu_x86_load_seg_cache(env
, R_FS
, 0, 0, 0xffff,
2688 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
2690 cpu_x86_load_seg_cache(env
, R_GS
, 0, 0, 0xffff,
2691 DESC_P_MASK
| DESC_S_MASK
| DESC_W_MASK
|
2695 env
->regs
[R_EDX
] = env
->cpuid_version
;
2700 for (i
= 0; i
< 8; i
++) {
2703 cpu_set_fpuc(env
, 0x37f);
2705 env
->mxcsr
= 0x1f80;
2706 /* All units are in INIT state. */
2709 env
->pat
= 0x0007040600070406ULL
;
2710 env
->msr_ia32_misc_enable
= MSR_IA32_MISC_ENABLE_DEFAULT
;
2712 memset(env
->dr
, 0, sizeof(env
->dr
));
2713 env
->dr
[6] = DR6_FIXED_1
;
2714 env
->dr
[7] = DR7_FIXED_1
;
2715 cpu_breakpoint_remove_all(s
, BP_CPU
);
2716 cpu_watchpoint_remove_all(s
, BP_CPU
);
2719 xcr0
= XSTATE_FP_MASK
;
2721 #ifdef CONFIG_USER_ONLY
2722 /* Enable all the features for user-mode. */
2723 if (env
->features
[FEAT_1_EDX
] & CPUID_SSE
) {
2724 xcr0
|= XSTATE_SSE_MASK
;
2726 for (i
= 2; i
< ARRAY_SIZE(x86_ext_save_areas
); i
++) {
2727 const ExtSaveArea
*esa
= &x86_ext_save_areas
[i
];
2728 if ((env
->features
[esa
->feature
] & esa
->bits
) == esa
->bits
) {
2733 if (env
->features
[FEAT_1_ECX
] & CPUID_EXT_XSAVE
) {
2734 cr4
|= CR4_OSFXSR_MASK
| CR4_OSXSAVE_MASK
;
2736 if (env
->features
[FEAT_7_0_EBX
] & CPUID_7_0_EBX_FSGSBASE
) {
2737 cr4
|= CR4_FSGSBASE_MASK
;
2742 cpu_x86_update_cr4(env
, cr4
);
2745 * SDM 11.11.5 requires:
2746 * - IA32_MTRR_DEF_TYPE MSR.E = 0
2747 * - IA32_MTRR_PHYSMASKn.V = 0
2748 * All other bits are undefined. For simplification, zero it all.
2750 env
->mtrr_deftype
= 0;
2751 memset(env
->mtrr_var
, 0, sizeof(env
->mtrr_var
));
2752 memset(env
->mtrr_fixed
, 0, sizeof(env
->mtrr_fixed
));
2754 #if !defined(CONFIG_USER_ONLY)
2755 /* We hard-wire the BSP to the first CPU. */
2756 apic_designate_bsp(cpu
->apic_state
, s
->cpu_index
== 0);
2758 s
->halted
= !cpu_is_bsp(cpu
);
2760 if (kvm_enabled()) {
2761 kvm_arch_reset_vcpu(cpu
);
2766 #ifndef CONFIG_USER_ONLY
2767 bool cpu_is_bsp(X86CPU
*cpu
)
2769 return cpu_get_apic_base(cpu
->apic_state
) & MSR_IA32_APICBASE_BSP
;
2772 /* TODO: remove me, when reset over QOM tree is implemented */
2773 static void x86_cpu_machine_reset_cb(void *opaque
)
2775 X86CPU
*cpu
= opaque
;
2776 cpu_reset(CPU(cpu
));
2780 static void mce_init(X86CPU
*cpu
)
2782 CPUX86State
*cenv
= &cpu
->env
;
2785 if (((cenv
->cpuid_version
>> 8) & 0xf) >= 6
2786 && (cenv
->features
[FEAT_1_EDX
] & (CPUID_MCE
| CPUID_MCA
)) ==
2787 (CPUID_MCE
| CPUID_MCA
)) {
2788 cenv
->mcg_cap
= MCE_CAP_DEF
| MCE_BANKS_DEF
;
2789 cenv
->mcg_ctl
= ~(uint64_t)0;
2790 for (bank
= 0; bank
< MCE_BANKS_DEF
; bank
++) {
2791 cenv
->mce_banks
[bank
* 4] = ~(uint64_t)0;
2796 #ifndef CONFIG_USER_ONLY
2797 static void x86_cpu_apic_create(X86CPU
*cpu
, Error
**errp
)
2799 APICCommonState
*apic
;
2800 const char *apic_type
= "apic";
2802 if (kvm_apic_in_kernel()) {
2803 apic_type
= "kvm-apic";
2804 } else if (xen_enabled()) {
2805 apic_type
= "xen-apic";
2808 cpu
->apic_state
= DEVICE(object_new(apic_type
));
2810 object_property_add_child(OBJECT(cpu
), "apic",
2811 OBJECT(cpu
->apic_state
), NULL
);
2812 qdev_prop_set_uint8(cpu
->apic_state
, "id", cpu
->apic_id
);
2813 /* TODO: convert to link<> */
2814 apic
= APIC_COMMON(cpu
->apic_state
);
2816 apic
->apicbase
= APIC_DEFAULT_ADDRESS
| MSR_IA32_APICBASE_ENABLE
;
2819 static void x86_cpu_apic_realize(X86CPU
*cpu
, Error
**errp
)
2821 APICCommonState
*apic
;
2822 static bool apic_mmio_map_once
;
2824 if (cpu
->apic_state
== NULL
) {
2827 object_property_set_bool(OBJECT(cpu
->apic_state
), true, "realized",
2830 /* Map APIC MMIO area */
2831 apic
= APIC_COMMON(cpu
->apic_state
);
2832 if (!apic_mmio_map_once
) {
2833 memory_region_add_subregion_overlap(get_system_memory(),
2835 MSR_IA32_APICBASE_BASE
,
2838 apic_mmio_map_once
= true;
2842 static void x86_cpu_machine_done(Notifier
*n
, void *unused
)
2844 X86CPU
*cpu
= container_of(n
, X86CPU
, machine_done
);
2845 MemoryRegion
*smram
=
2846 (MemoryRegion
*) object_resolve_path("/machine/smram", NULL
);
2849 cpu
->smram
= g_new(MemoryRegion
, 1);
2850 memory_region_init_alias(cpu
->smram
, OBJECT(cpu
), "smram",
2851 smram
, 0, 1ull << 32);
2852 memory_region_set_enabled(cpu
->smram
, false);
2853 memory_region_add_subregion_overlap(cpu
->cpu_as_root
, 0, cpu
->smram
, 1);
2857 static void x86_cpu_apic_realize(X86CPU
*cpu
, Error
**errp
)
2863 #define IS_INTEL_CPU(env) ((env)->cpuid_vendor1 == CPUID_VENDOR_INTEL_1 && \
2864 (env)->cpuid_vendor2 == CPUID_VENDOR_INTEL_2 && \
2865 (env)->cpuid_vendor3 == CPUID_VENDOR_INTEL_3)
2866 #define IS_AMD_CPU(env) ((env)->cpuid_vendor1 == CPUID_VENDOR_AMD_1 && \
2867 (env)->cpuid_vendor2 == CPUID_VENDOR_AMD_2 && \
2868 (env)->cpuid_vendor3 == CPUID_VENDOR_AMD_3)
2869 static void x86_cpu_realizefn(DeviceState
*dev
, Error
**errp
)
2871 CPUState
*cs
= CPU(dev
);
2872 X86CPU
*cpu
= X86_CPU(dev
);
2873 X86CPUClass
*xcc
= X86_CPU_GET_CLASS(dev
);
2874 CPUX86State
*env
= &cpu
->env
;
2875 Error
*local_err
= NULL
;
2876 static bool ht_warned
;
2878 if (cpu
->apic_id
< 0) {
2879 error_setg(errp
, "apic-id property was not initialized properly");
2883 if (env
->features
[FEAT_7_0_EBX
] && env
->cpuid_level
< 7) {
2884 env
->cpuid_level
= 7;
2887 if (x86_cpu_filter_features(cpu
) && cpu
->enforce_cpuid
) {
2888 error_setg(&local_err
,
2890 "Host doesn't support requested features" :
2891 "TCG doesn't support requested features");
2895 /* On AMD CPUs, some CPUID[8000_0001].EDX bits must match the bits on
2898 if (IS_AMD_CPU(env
)) {
2899 env
->features
[FEAT_8000_0001_EDX
] &= ~CPUID_EXT2_AMD_ALIASES
;
2900 env
->features
[FEAT_8000_0001_EDX
] |= (env
->features
[FEAT_1_EDX
]
2901 & CPUID_EXT2_AMD_ALIASES
);
2905 cpu_exec_init(cs
, &error_abort
);
2907 if (tcg_enabled()) {
2911 #ifndef CONFIG_USER_ONLY
2912 qemu_register_reset(x86_cpu_machine_reset_cb
, cpu
);
2914 if (cpu
->env
.features
[FEAT_1_EDX
] & CPUID_APIC
|| smp_cpus
> 1) {
2915 x86_cpu_apic_create(cpu
, &local_err
);
2916 if (local_err
!= NULL
) {
2924 #ifndef CONFIG_USER_ONLY
2925 if (tcg_enabled()) {
2926 AddressSpace
*newas
= g_new(AddressSpace
, 1);
2928 cpu
->cpu_as_mem
= g_new(MemoryRegion
, 1);
2929 cpu
->cpu_as_root
= g_new(MemoryRegion
, 1);
2931 /* Outer container... */
2932 memory_region_init(cpu
->cpu_as_root
, OBJECT(cpu
), "memory", ~0ull);
2933 memory_region_set_enabled(cpu
->cpu_as_root
, true);
2935 /* ... with two regions inside: normal system memory with low
2938 memory_region_init_alias(cpu
->cpu_as_mem
, OBJECT(cpu
), "memory",
2939 get_system_memory(), 0, ~0ull);
2940 memory_region_add_subregion_overlap(cpu
->cpu_as_root
, 0, cpu
->cpu_as_mem
, 0);
2941 memory_region_set_enabled(cpu
->cpu_as_mem
, true);
2942 address_space_init(newas
, cpu
->cpu_as_root
, "CPU");
2944 cpu_address_space_init(cs
, newas
, 0);
2946 /* ... SMRAM with higher priority, linked from /machine/smram. */
2947 cpu
->machine_done
.notify
= x86_cpu_machine_done
;
2948 qemu_add_machine_init_done_notifier(&cpu
->machine_done
);
2954 /* Only Intel CPUs support hyperthreading. Even though QEMU fixes this
2955 * issue by adjusting CPUID_0000_0001_EBX and CPUID_8000_0008_ECX
2956 * based on inputs (sockets,cores,threads), it is still better to gives
2959 * NOTE: the following code has to follow qemu_init_vcpu(). Otherwise
2960 * cs->nr_threads hasn't be populated yet and the checking is incorrect.
2962 if (!IS_INTEL_CPU(env
) && cs
->nr_threads
> 1 && !ht_warned
) {
2963 error_report("AMD CPU doesn't support hyperthreading. Please configure"
2964 " -smp options properly.");
2968 x86_cpu_apic_realize(cpu
, &local_err
);
2969 if (local_err
!= NULL
) {
2974 xcc
->parent_realize(dev
, &local_err
);
2977 if (local_err
!= NULL
) {
2978 error_propagate(errp
, local_err
);
2983 typedef struct BitProperty
{
2988 static void x86_cpu_get_bit_prop(Object
*obj
, Visitor
*v
, const char *name
,
2989 void *opaque
, Error
**errp
)
2991 BitProperty
*fp
= opaque
;
2992 bool value
= (*fp
->ptr
& fp
->mask
) == fp
->mask
;
2993 visit_type_bool(v
, name
, &value
, errp
);
2996 static void x86_cpu_set_bit_prop(Object
*obj
, Visitor
*v
, const char *name
,
2997 void *opaque
, Error
**errp
)
2999 DeviceState
*dev
= DEVICE(obj
);
3000 BitProperty
*fp
= opaque
;
3001 Error
*local_err
= NULL
;
3004 if (dev
->realized
) {
3005 qdev_prop_set_after_realize(dev
, name
, errp
);
3009 visit_type_bool(v
, name
, &value
, &local_err
);
3011 error_propagate(errp
, local_err
);
3016 *fp
->ptr
|= fp
->mask
;
3018 *fp
->ptr
&= ~fp
->mask
;
3022 static void x86_cpu_release_bit_prop(Object
*obj
, const char *name
,
3025 BitProperty
*prop
= opaque
;
3029 /* Register a boolean property to get/set a single bit in a uint32_t field.
3031 * The same property name can be registered multiple times to make it affect
3032 * multiple bits in the same FeatureWord. In that case, the getter will return
3033 * true only if all bits are set.
3035 static void x86_cpu_register_bit_prop(X86CPU
*cpu
,
3036 const char *prop_name
,
3042 uint32_t mask
= (1UL << bitnr
);
3044 op
= object_property_find(OBJECT(cpu
), prop_name
, NULL
);
3047 assert(fp
->ptr
== field
);
3050 fp
= g_new0(BitProperty
, 1);
3053 object_property_add(OBJECT(cpu
), prop_name
, "bool",
3054 x86_cpu_get_bit_prop
,
3055 x86_cpu_set_bit_prop
,
3056 x86_cpu_release_bit_prop
, fp
, &error_abort
);
3060 static void x86_cpu_register_feature_bit_props(X86CPU
*cpu
,
3064 Object
*obj
= OBJECT(cpu
);
3067 FeatureWordInfo
*fi
= &feature_word_info
[w
];
3069 if (!fi
->feat_names
) {
3072 if (!fi
->feat_names
[bitnr
]) {
3076 names
= g_strsplit(fi
->feat_names
[bitnr
], "|", 0);
3078 feat2prop(names
[0]);
3079 x86_cpu_register_bit_prop(cpu
, names
[0], &cpu
->env
.features
[w
], bitnr
);
3081 for (i
= 1; names
[i
]; i
++) {
3082 feat2prop(names
[i
]);
3083 object_property_add_alias(obj
, names
[i
], obj
, names
[0],
3090 static void x86_cpu_initfn(Object
*obj
)
3092 CPUState
*cs
= CPU(obj
);
3093 X86CPU
*cpu
= X86_CPU(obj
);
3094 X86CPUClass
*xcc
= X86_CPU_GET_CLASS(obj
);
3095 CPUX86State
*env
= &cpu
->env
;
3100 object_property_add(obj
, "family", "int",
3101 x86_cpuid_version_get_family
,
3102 x86_cpuid_version_set_family
, NULL
, NULL
, NULL
);
3103 object_property_add(obj
, "model", "int",
3104 x86_cpuid_version_get_model
,
3105 x86_cpuid_version_set_model
, NULL
, NULL
, NULL
);
3106 object_property_add(obj
, "stepping", "int",
3107 x86_cpuid_version_get_stepping
,
3108 x86_cpuid_version_set_stepping
, NULL
, NULL
, NULL
);
3109 object_property_add_str(obj
, "vendor",
3110 x86_cpuid_get_vendor
,
3111 x86_cpuid_set_vendor
, NULL
);
3112 object_property_add_str(obj
, "model-id",
3113 x86_cpuid_get_model_id
,
3114 x86_cpuid_set_model_id
, NULL
);
3115 object_property_add(obj
, "tsc-frequency", "int",
3116 x86_cpuid_get_tsc_freq
,
3117 x86_cpuid_set_tsc_freq
, NULL
, NULL
, NULL
);
3118 object_property_add(obj
, "apic-id", "int",
3119 x86_cpuid_get_apic_id
,
3120 x86_cpuid_set_apic_id
, NULL
, NULL
, NULL
);
3121 object_property_add(obj
, "feature-words", "X86CPUFeatureWordInfo",
3122 x86_cpu_get_feature_words
,
3123 NULL
, NULL
, (void *)env
->features
, NULL
);
3124 object_property_add(obj
, "filtered-features", "X86CPUFeatureWordInfo",
3125 x86_cpu_get_feature_words
,
3126 NULL
, NULL
, (void *)cpu
->filtered_features
, NULL
);
3128 cpu
->hyperv_spinlock_attempts
= HYPERV_SPINLOCK_NEVER_RETRY
;
3130 #ifndef CONFIG_USER_ONLY
3131 /* Any code creating new X86CPU objects have to set apic-id explicitly */
3135 for (w
= 0; w
< FEATURE_WORDS
; w
++) {
3138 for (bitnr
= 0; bitnr
< 32; bitnr
++) {
3139 x86_cpu_register_feature_bit_props(cpu
, w
, bitnr
);
3143 x86_cpu_load_def(cpu
, xcc
->cpu_def
, &error_abort
);
3146 static int64_t x86_cpu_get_arch_id(CPUState
*cs
)
3148 X86CPU
*cpu
= X86_CPU(cs
);
3150 return cpu
->apic_id
;
3153 static bool x86_cpu_get_paging_enabled(const CPUState
*cs
)
3155 X86CPU
*cpu
= X86_CPU(cs
);
3157 return cpu
->env
.cr
[0] & CR0_PG_MASK
;
3160 static void x86_cpu_set_pc(CPUState
*cs
, vaddr value
)
3162 X86CPU
*cpu
= X86_CPU(cs
);
3164 cpu
->env
.eip
= value
;
3167 static void x86_cpu_synchronize_from_tb(CPUState
*cs
, TranslationBlock
*tb
)
3169 X86CPU
*cpu
= X86_CPU(cs
);
3171 cpu
->env
.eip
= tb
->pc
- tb
->cs_base
;
3174 static bool x86_cpu_has_work(CPUState
*cs
)
3176 X86CPU
*cpu
= X86_CPU(cs
);
3177 CPUX86State
*env
= &cpu
->env
;
3179 return ((cs
->interrupt_request
& (CPU_INTERRUPT_HARD
|
3180 CPU_INTERRUPT_POLL
)) &&
3181 (env
->eflags
& IF_MASK
)) ||
3182 (cs
->interrupt_request
& (CPU_INTERRUPT_NMI
|
3183 CPU_INTERRUPT_INIT
|
3184 CPU_INTERRUPT_SIPI
|
3185 CPU_INTERRUPT_MCE
)) ||
3186 ((cs
->interrupt_request
& CPU_INTERRUPT_SMI
) &&
3187 !(env
->hflags
& HF_SMM_MASK
));
3190 static Property x86_cpu_properties
[] = {
3191 DEFINE_PROP_BOOL("pmu", X86CPU
, enable_pmu
, false),
3192 { .name
= "hv-spinlocks", .info
= &qdev_prop_spinlocks
},
3193 DEFINE_PROP_BOOL("hv-relaxed", X86CPU
, hyperv_relaxed_timing
, false),
3194 DEFINE_PROP_BOOL("hv-vapic", X86CPU
, hyperv_vapic
, false),
3195 DEFINE_PROP_BOOL("hv-time", X86CPU
, hyperv_time
, false),
3196 DEFINE_PROP_BOOL("hv-crash", X86CPU
, hyperv_crash
, false),
3197 DEFINE_PROP_BOOL("hv-reset", X86CPU
, hyperv_reset
, false),
3198 DEFINE_PROP_BOOL("hv-vpindex", X86CPU
, hyperv_vpindex
, false),
3199 DEFINE_PROP_BOOL("hv-runtime", X86CPU
, hyperv_runtime
, false),
3200 DEFINE_PROP_BOOL("hv-synic", X86CPU
, hyperv_synic
, false),
3201 DEFINE_PROP_BOOL("hv-stimer", X86CPU
, hyperv_stimer
, false),
3202 DEFINE_PROP_BOOL("check", X86CPU
, check_cpuid
, true),
3203 DEFINE_PROP_BOOL("enforce", X86CPU
, enforce_cpuid
, false),
3204 DEFINE_PROP_BOOL("kvm", X86CPU
, expose_kvm
, true),
3205 DEFINE_PROP_UINT32("level", X86CPU
, env
.cpuid_level
, 0),
3206 DEFINE_PROP_UINT32("xlevel", X86CPU
, env
.cpuid_xlevel
, 0),
3207 DEFINE_PROP_UINT32("xlevel2", X86CPU
, env
.cpuid_xlevel2
, 0),
3208 DEFINE_PROP_STRING("hv-vendor-id", X86CPU
, hyperv_vendor_id
),
3209 DEFINE_PROP_END_OF_LIST()
3212 static void x86_cpu_common_class_init(ObjectClass
*oc
, void *data
)
3214 X86CPUClass
*xcc
= X86_CPU_CLASS(oc
);
3215 CPUClass
*cc
= CPU_CLASS(oc
);
3216 DeviceClass
*dc
= DEVICE_CLASS(oc
);
3218 xcc
->parent_realize
= dc
->realize
;
3219 dc
->realize
= x86_cpu_realizefn
;
3220 dc
->props
= x86_cpu_properties
;
3222 xcc
->parent_reset
= cc
->reset
;
3223 cc
->reset
= x86_cpu_reset
;
3224 cc
->reset_dump_flags
= CPU_DUMP_FPU
| CPU_DUMP_CCOP
;
3226 cc
->class_by_name
= x86_cpu_class_by_name
;
3227 cc
->parse_features
= x86_cpu_parse_featurestr
;
3228 cc
->has_work
= x86_cpu_has_work
;
3229 cc
->do_interrupt
= x86_cpu_do_interrupt
;
3230 cc
->cpu_exec_interrupt
= x86_cpu_exec_interrupt
;
3231 cc
->dump_state
= x86_cpu_dump_state
;
3232 cc
->set_pc
= x86_cpu_set_pc
;
3233 cc
->synchronize_from_tb
= x86_cpu_synchronize_from_tb
;
3234 cc
->gdb_read_register
= x86_cpu_gdb_read_register
;
3235 cc
->gdb_write_register
= x86_cpu_gdb_write_register
;
3236 cc
->get_arch_id
= x86_cpu_get_arch_id
;
3237 cc
->get_paging_enabled
= x86_cpu_get_paging_enabled
;
3238 #ifdef CONFIG_USER_ONLY
3239 cc
->handle_mmu_fault
= x86_cpu_handle_mmu_fault
;
3241 cc
->get_memory_mapping
= x86_cpu_get_memory_mapping
;
3242 cc
->get_phys_page_debug
= x86_cpu_get_phys_page_debug
;
3243 cc
->write_elf64_note
= x86_cpu_write_elf64_note
;
3244 cc
->write_elf64_qemunote
= x86_cpu_write_elf64_qemunote
;
3245 cc
->write_elf32_note
= x86_cpu_write_elf32_note
;
3246 cc
->write_elf32_qemunote
= x86_cpu_write_elf32_qemunote
;
3247 cc
->vmsd
= &vmstate_x86_cpu
;
3249 cc
->gdb_num_core_regs
= CPU_NB_REGS
* 2 + 25;
3250 #ifndef CONFIG_USER_ONLY
3251 cc
->debug_excp_handler
= breakpoint_handler
;
3253 cc
->cpu_exec_enter
= x86_cpu_exec_enter
;
3254 cc
->cpu_exec_exit
= x86_cpu_exec_exit
;
3257 * Reason: x86_cpu_initfn() calls cpu_exec_init(), which saves the
3258 * object in cpus -> dangling pointer after final object_unref().
3260 dc
->cannot_destroy_with_object_finalize_yet
= true;
3263 static const TypeInfo x86_cpu_type_info
= {
3264 .name
= TYPE_X86_CPU
,
3266 .instance_size
= sizeof(X86CPU
),
3267 .instance_init
= x86_cpu_initfn
,
3269 .class_size
= sizeof(X86CPUClass
),
3270 .class_init
= x86_cpu_common_class_init
,
3273 static void x86_cpu_register_types(void)
3277 type_register_static(&x86_cpu_type_info
);
3278 for (i
= 0; i
< ARRAY_SIZE(builtin_x86_defs
); i
++) {
3279 x86_register_cpudef_type(&builtin_x86_defs
[i
]);
3282 type_register_static(&host_x86_cpu_type_info
);
3286 type_init(x86_cpu_register_types
)