xref: /openbmc/qemu/target/i386/cpu.h (revision 438c78da)
1 
2 /*
3  * i386 virtual CPU header
4  *
5  *  Copyright (c) 2003 Fabrice Bellard
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19  */
20 
21 #ifndef I386_CPU_H
22 #define I386_CPU_H
23 
24 #include "qemu-common.h"
25 #include "cpu-qom.h"
26 #include "hyperv-proto.h"
27 
28 #ifdef TARGET_X86_64
29 #define TARGET_LONG_BITS 64
30 #else
31 #define TARGET_LONG_BITS 32
32 #endif
33 
34 #include "exec/cpu-defs.h"
35 
36 /* The x86 has a strong memory model with some store-after-load re-ordering */
37 #define TCG_GUEST_DEFAULT_MO      (TCG_MO_ALL & ~TCG_MO_ST_LD)
38 
39 /* Maximum instruction code size */
40 #define TARGET_MAX_INSN_SIZE 16
41 
42 /* support for self modifying code even if the modified instruction is
43    close to the modifying instruction */
44 #define TARGET_HAS_PRECISE_SMC
45 
46 #ifdef TARGET_X86_64
47 #define I386_ELF_MACHINE  EM_X86_64
48 #define ELF_MACHINE_UNAME "x86_64"
49 #else
50 #define I386_ELF_MACHINE  EM_386
51 #define ELF_MACHINE_UNAME "i686"
52 #endif
53 
54 #define CPUArchState struct CPUX86State
55 
56 enum {
57     R_EAX = 0,
58     R_ECX = 1,
59     R_EDX = 2,
60     R_EBX = 3,
61     R_ESP = 4,
62     R_EBP = 5,
63     R_ESI = 6,
64     R_EDI = 7,
65     R_R8 = 8,
66     R_R9 = 9,
67     R_R10 = 10,
68     R_R11 = 11,
69     R_R12 = 12,
70     R_R13 = 13,
71     R_R14 = 14,
72     R_R15 = 15,
73 
74     R_AL = 0,
75     R_CL = 1,
76     R_DL = 2,
77     R_BL = 3,
78     R_AH = 4,
79     R_CH = 5,
80     R_DH = 6,
81     R_BH = 7,
82 };
83 
84 typedef enum X86Seg {
85     R_ES = 0,
86     R_CS = 1,
87     R_SS = 2,
88     R_DS = 3,
89     R_FS = 4,
90     R_GS = 5,
91     R_LDTR = 6,
92     R_TR = 7,
93 } X86Seg;
94 
95 /* segment descriptor fields */
96 #define DESC_G_SHIFT    23
97 #define DESC_G_MASK     (1 << DESC_G_SHIFT)
98 #define DESC_B_SHIFT    22
99 #define DESC_B_MASK     (1 << DESC_B_SHIFT)
100 #define DESC_L_SHIFT    21 /* x86_64 only : 64 bit code segment */
101 #define DESC_L_MASK     (1 << DESC_L_SHIFT)
102 #define DESC_AVL_SHIFT  20
103 #define DESC_AVL_MASK   (1 << DESC_AVL_SHIFT)
104 #define DESC_P_SHIFT    15
105 #define DESC_P_MASK     (1 << DESC_P_SHIFT)
106 #define DESC_DPL_SHIFT  13
107 #define DESC_DPL_MASK   (3 << DESC_DPL_SHIFT)
108 #define DESC_S_SHIFT    12
109 #define DESC_S_MASK     (1 << DESC_S_SHIFT)
110 #define DESC_TYPE_SHIFT 8
111 #define DESC_TYPE_MASK  (15 << DESC_TYPE_SHIFT)
112 #define DESC_A_MASK     (1 << 8)
113 
114 #define DESC_CS_MASK    (1 << 11) /* 1=code segment 0=data segment */
115 #define DESC_C_MASK     (1 << 10) /* code: conforming */
116 #define DESC_R_MASK     (1 << 9)  /* code: readable */
117 
118 #define DESC_E_MASK     (1 << 10) /* data: expansion direction */
119 #define DESC_W_MASK     (1 << 9)  /* data: writable */
120 
121 #define DESC_TSS_BUSY_MASK (1 << 9)
122 
123 /* eflags masks */
124 #define CC_C    0x0001
125 #define CC_P    0x0004
126 #define CC_A    0x0010
127 #define CC_Z    0x0040
128 #define CC_S    0x0080
129 #define CC_O    0x0800
130 
131 #define TF_SHIFT   8
132 #define IOPL_SHIFT 12
133 #define VM_SHIFT   17
134 
135 #define TF_MASK                 0x00000100
136 #define IF_MASK                 0x00000200
137 #define DF_MASK                 0x00000400
138 #define IOPL_MASK               0x00003000
139 #define NT_MASK                 0x00004000
140 #define RF_MASK                 0x00010000
141 #define VM_MASK                 0x00020000
142 #define AC_MASK                 0x00040000
143 #define VIF_MASK                0x00080000
144 #define VIP_MASK                0x00100000
145 #define ID_MASK                 0x00200000
146 
147 /* hidden flags - used internally by qemu to represent additional cpu
148    states. Only the INHIBIT_IRQ, SMM and SVMI are not redundant. We
149    avoid using the IOPL_MASK, TF_MASK, VM_MASK and AC_MASK bit
150    positions to ease oring with eflags. */
151 /* current cpl */
152 #define HF_CPL_SHIFT         0
153 /* true if hardware interrupts must be disabled for next instruction */
154 #define HF_INHIBIT_IRQ_SHIFT 3
155 /* 16 or 32 segments */
156 #define HF_CS32_SHIFT        4
157 #define HF_SS32_SHIFT        5
158 /* zero base for DS, ES and SS : can be '0' only in 32 bit CS segment */
159 #define HF_ADDSEG_SHIFT      6
160 /* copy of CR0.PE (protected mode) */
161 #define HF_PE_SHIFT          7
162 #define HF_TF_SHIFT          8 /* must be same as eflags */
163 #define HF_MP_SHIFT          9 /* the order must be MP, EM, TS */
164 #define HF_EM_SHIFT         10
165 #define HF_TS_SHIFT         11
166 #define HF_IOPL_SHIFT       12 /* must be same as eflags */
167 #define HF_LMA_SHIFT        14 /* only used on x86_64: long mode active */
168 #define HF_CS64_SHIFT       15 /* only used on x86_64: 64 bit code segment  */
169 #define HF_RF_SHIFT         16 /* must be same as eflags */
170 #define HF_VM_SHIFT         17 /* must be same as eflags */
171 #define HF_AC_SHIFT         18 /* must be same as eflags */
172 #define HF_SMM_SHIFT        19 /* CPU in SMM mode */
173 #define HF_SVME_SHIFT       20 /* SVME enabled (copy of EFER.SVME) */
174 #define HF_GUEST_SHIFT      21 /* SVM intercepts are active */
175 #define HF_OSFXSR_SHIFT     22 /* CR4.OSFXSR */
176 #define HF_SMAP_SHIFT       23 /* CR4.SMAP */
177 #define HF_IOBPT_SHIFT      24 /* an io breakpoint enabled */
178 #define HF_MPX_EN_SHIFT     25 /* MPX Enabled (CR4+XCR0+BNDCFGx) */
179 #define HF_MPX_IU_SHIFT     26 /* BND registers in-use */
180 
181 #define HF_CPL_MASK          (3 << HF_CPL_SHIFT)
182 #define HF_INHIBIT_IRQ_MASK  (1 << HF_INHIBIT_IRQ_SHIFT)
183 #define HF_CS32_MASK         (1 << HF_CS32_SHIFT)
184 #define HF_SS32_MASK         (1 << HF_SS32_SHIFT)
185 #define HF_ADDSEG_MASK       (1 << HF_ADDSEG_SHIFT)
186 #define HF_PE_MASK           (1 << HF_PE_SHIFT)
187 #define HF_TF_MASK           (1 << HF_TF_SHIFT)
188 #define HF_MP_MASK           (1 << HF_MP_SHIFT)
189 #define HF_EM_MASK           (1 << HF_EM_SHIFT)
190 #define HF_TS_MASK           (1 << HF_TS_SHIFT)
191 #define HF_IOPL_MASK         (3 << HF_IOPL_SHIFT)
192 #define HF_LMA_MASK          (1 << HF_LMA_SHIFT)
193 #define HF_CS64_MASK         (1 << HF_CS64_SHIFT)
194 #define HF_RF_MASK           (1 << HF_RF_SHIFT)
195 #define HF_VM_MASK           (1 << HF_VM_SHIFT)
196 #define HF_AC_MASK           (1 << HF_AC_SHIFT)
197 #define HF_SMM_MASK          (1 << HF_SMM_SHIFT)
198 #define HF_SVME_MASK         (1 << HF_SVME_SHIFT)
199 #define HF_GUEST_MASK        (1 << HF_GUEST_SHIFT)
200 #define HF_OSFXSR_MASK       (1 << HF_OSFXSR_SHIFT)
201 #define HF_SMAP_MASK         (1 << HF_SMAP_SHIFT)
202 #define HF_IOBPT_MASK        (1 << HF_IOBPT_SHIFT)
203 #define HF_MPX_EN_MASK       (1 << HF_MPX_EN_SHIFT)
204 #define HF_MPX_IU_MASK       (1 << HF_MPX_IU_SHIFT)
205 
206 /* hflags2 */
207 
208 #define HF2_GIF_SHIFT            0 /* if set CPU takes interrupts */
209 #define HF2_HIF_SHIFT            1 /* value of IF_MASK when entering SVM */
210 #define HF2_NMI_SHIFT            2 /* CPU serving NMI */
211 #define HF2_VINTR_SHIFT          3 /* value of V_INTR_MASKING bit */
212 #define HF2_SMM_INSIDE_NMI_SHIFT 4 /* CPU serving SMI nested inside NMI */
213 #define HF2_MPX_PR_SHIFT         5 /* BNDCFGx.BNDPRESERVE */
214 #define HF2_NPT_SHIFT            6 /* Nested Paging enabled */
215 
216 #define HF2_GIF_MASK            (1 << HF2_GIF_SHIFT)
217 #define HF2_HIF_MASK            (1 << HF2_HIF_SHIFT)
218 #define HF2_NMI_MASK            (1 << HF2_NMI_SHIFT)
219 #define HF2_VINTR_MASK          (1 << HF2_VINTR_SHIFT)
220 #define HF2_SMM_INSIDE_NMI_MASK (1 << HF2_SMM_INSIDE_NMI_SHIFT)
221 #define HF2_MPX_PR_MASK         (1 << HF2_MPX_PR_SHIFT)
222 #define HF2_NPT_MASK            (1 << HF2_NPT_SHIFT)
223 
224 #define CR0_PE_SHIFT 0
225 #define CR0_MP_SHIFT 1
226 
227 #define CR0_PE_MASK  (1U << 0)
228 #define CR0_MP_MASK  (1U << 1)
229 #define CR0_EM_MASK  (1U << 2)
230 #define CR0_TS_MASK  (1U << 3)
231 #define CR0_ET_MASK  (1U << 4)
232 #define CR0_NE_MASK  (1U << 5)
233 #define CR0_WP_MASK  (1U << 16)
234 #define CR0_AM_MASK  (1U << 18)
235 #define CR0_PG_MASK  (1U << 31)
236 
237 #define CR4_VME_MASK  (1U << 0)
238 #define CR4_PVI_MASK  (1U << 1)
239 #define CR4_TSD_MASK  (1U << 2)
240 #define CR4_DE_MASK   (1U << 3)
241 #define CR4_PSE_MASK  (1U << 4)
242 #define CR4_PAE_MASK  (1U << 5)
243 #define CR4_MCE_MASK  (1U << 6)
244 #define CR4_PGE_MASK  (1U << 7)
245 #define CR4_PCE_MASK  (1U << 8)
246 #define CR4_OSFXSR_SHIFT 9
247 #define CR4_OSFXSR_MASK (1U << CR4_OSFXSR_SHIFT)
248 #define CR4_OSXMMEXCPT_MASK  (1U << 10)
249 #define CR4_LA57_MASK   (1U << 12)
250 #define CR4_VMXE_MASK   (1U << 13)
251 #define CR4_SMXE_MASK   (1U << 14)
252 #define CR4_FSGSBASE_MASK (1U << 16)
253 #define CR4_PCIDE_MASK  (1U << 17)
254 #define CR4_OSXSAVE_MASK (1U << 18)
255 #define CR4_SMEP_MASK   (1U << 20)
256 #define CR4_SMAP_MASK   (1U << 21)
257 #define CR4_PKE_MASK   (1U << 22)
258 
259 #define DR6_BD          (1 << 13)
260 #define DR6_BS          (1 << 14)
261 #define DR6_BT          (1 << 15)
262 #define DR6_FIXED_1     0xffff0ff0
263 
264 #define DR7_GD          (1 << 13)
265 #define DR7_TYPE_SHIFT  16
266 #define DR7_LEN_SHIFT   18
267 #define DR7_FIXED_1     0x00000400
268 #define DR7_GLOBAL_BP_MASK   0xaa
269 #define DR7_LOCAL_BP_MASK    0x55
270 #define DR7_MAX_BP           4
271 #define DR7_TYPE_BP_INST     0x0
272 #define DR7_TYPE_DATA_WR     0x1
273 #define DR7_TYPE_IO_RW       0x2
274 #define DR7_TYPE_DATA_RW     0x3
275 
276 #define PG_PRESENT_BIT  0
277 #define PG_RW_BIT       1
278 #define PG_USER_BIT     2
279 #define PG_PWT_BIT      3
280 #define PG_PCD_BIT      4
281 #define PG_ACCESSED_BIT 5
282 #define PG_DIRTY_BIT    6
283 #define PG_PSE_BIT      7
284 #define PG_GLOBAL_BIT   8
285 #define PG_PSE_PAT_BIT  12
286 #define PG_PKRU_BIT     59
287 #define PG_NX_BIT       63
288 
289 #define PG_PRESENT_MASK  (1 << PG_PRESENT_BIT)
290 #define PG_RW_MASK       (1 << PG_RW_BIT)
291 #define PG_USER_MASK     (1 << PG_USER_BIT)
292 #define PG_PWT_MASK      (1 << PG_PWT_BIT)
293 #define PG_PCD_MASK      (1 << PG_PCD_BIT)
294 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
295 #define PG_DIRTY_MASK    (1 << PG_DIRTY_BIT)
296 #define PG_PSE_MASK      (1 << PG_PSE_BIT)
297 #define PG_GLOBAL_MASK   (1 << PG_GLOBAL_BIT)
298 #define PG_PSE_PAT_MASK  (1 << PG_PSE_PAT_BIT)
299 #define PG_ADDRESS_MASK  0x000ffffffffff000LL
300 #define PG_HI_RSVD_MASK  (PG_ADDRESS_MASK & ~PHYS_ADDR_MASK)
301 #define PG_HI_USER_MASK  0x7ff0000000000000LL
302 #define PG_PKRU_MASK     (15ULL << PG_PKRU_BIT)
303 #define PG_NX_MASK       (1ULL << PG_NX_BIT)
304 
305 #define PG_ERROR_W_BIT     1
306 
307 #define PG_ERROR_P_MASK    0x01
308 #define PG_ERROR_W_MASK    (1 << PG_ERROR_W_BIT)
309 #define PG_ERROR_U_MASK    0x04
310 #define PG_ERROR_RSVD_MASK 0x08
311 #define PG_ERROR_I_D_MASK  0x10
312 #define PG_ERROR_PK_MASK   0x20
313 
314 #define MCG_CTL_P       (1ULL<<8)   /* MCG_CAP register available */
315 #define MCG_SER_P       (1ULL<<24) /* MCA recovery/new status bits */
316 #define MCG_LMCE_P      (1ULL<<27) /* Local Machine Check Supported */
317 
318 #define MCE_CAP_DEF     (MCG_CTL_P|MCG_SER_P)
319 #define MCE_BANKS_DEF   10
320 
321 #define MCG_CAP_BANKS_MASK 0xff
322 
323 #define MCG_STATUS_RIPV (1ULL<<0)   /* restart ip valid */
324 #define MCG_STATUS_EIPV (1ULL<<1)   /* ip points to correct instruction */
325 #define MCG_STATUS_MCIP (1ULL<<2)   /* machine check in progress */
326 #define MCG_STATUS_LMCE (1ULL<<3)   /* Local MCE signaled */
327 
328 #define MCG_EXT_CTL_LMCE_EN (1ULL<<0) /* Local MCE enabled */
329 
330 #define MCI_STATUS_VAL   (1ULL<<63)  /* valid error */
331 #define MCI_STATUS_OVER  (1ULL<<62)  /* previous errors lost */
332 #define MCI_STATUS_UC    (1ULL<<61)  /* uncorrected error */
333 #define MCI_STATUS_EN    (1ULL<<60)  /* error enabled */
334 #define MCI_STATUS_MISCV (1ULL<<59)  /* misc error reg. valid */
335 #define MCI_STATUS_ADDRV (1ULL<<58)  /* addr reg. valid */
336 #define MCI_STATUS_PCC   (1ULL<<57)  /* processor context corrupt */
337 #define MCI_STATUS_S     (1ULL<<56)  /* Signaled machine check */
338 #define MCI_STATUS_AR    (1ULL<<55)  /* Action required */
339 
340 /* MISC register defines */
341 #define MCM_ADDR_SEGOFF  0      /* segment offset */
342 #define MCM_ADDR_LINEAR  1      /* linear address */
343 #define MCM_ADDR_PHYS    2      /* physical address */
344 #define MCM_ADDR_MEM     3      /* memory address */
345 #define MCM_ADDR_GENERIC 7      /* generic */
346 
347 #define MSR_IA32_TSC                    0x10
348 #define MSR_IA32_APICBASE               0x1b
349 #define MSR_IA32_APICBASE_BSP           (1<<8)
350 #define MSR_IA32_APICBASE_ENABLE        (1<<11)
351 #define MSR_IA32_APICBASE_EXTD          (1 << 10)
352 #define MSR_IA32_APICBASE_BASE          (0xfffffU<<12)
353 #define MSR_IA32_FEATURE_CONTROL        0x0000003a
354 #define MSR_TSC_ADJUST                  0x0000003b
355 #define MSR_IA32_SPEC_CTRL              0x48
356 #define MSR_VIRT_SSBD                   0xc001011f
357 #define MSR_IA32_PRED_CMD               0x49
358 #define MSR_IA32_ARCH_CAPABILITIES      0x10a
359 #define MSR_IA32_TSCDEADLINE            0x6e0
360 
361 #define FEATURE_CONTROL_LOCKED                    (1<<0)
362 #define FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX (1<<2)
363 #define FEATURE_CONTROL_LMCE                      (1<<20)
364 
365 #define MSR_P6_PERFCTR0                 0xc1
366 
367 #define MSR_IA32_SMBASE                 0x9e
368 #define MSR_SMI_COUNT                   0x34
369 #define MSR_MTRRcap                     0xfe
370 #define MSR_MTRRcap_VCNT                8
371 #define MSR_MTRRcap_FIXRANGE_SUPPORT    (1 << 8)
372 #define MSR_MTRRcap_WC_SUPPORTED        (1 << 10)
373 
374 #define MSR_IA32_SYSENTER_CS            0x174
375 #define MSR_IA32_SYSENTER_ESP           0x175
376 #define MSR_IA32_SYSENTER_EIP           0x176
377 
378 #define MSR_MCG_CAP                     0x179
379 #define MSR_MCG_STATUS                  0x17a
380 #define MSR_MCG_CTL                     0x17b
381 #define MSR_MCG_EXT_CTL                 0x4d0
382 
383 #define MSR_P6_EVNTSEL0                 0x186
384 
385 #define MSR_IA32_PERF_STATUS            0x198
386 
387 #define MSR_IA32_MISC_ENABLE            0x1a0
388 /* Indicates good rep/movs microcode on some processors: */
389 #define MSR_IA32_MISC_ENABLE_DEFAULT    1
390 
391 #define MSR_MTRRphysBase(reg)           (0x200 + 2 * (reg))
392 #define MSR_MTRRphysMask(reg)           (0x200 + 2 * (reg) + 1)
393 
394 #define MSR_MTRRphysIndex(addr)         ((((addr) & ~1u) - 0x200) / 2)
395 
396 #define MSR_MTRRfix64K_00000            0x250
397 #define MSR_MTRRfix16K_80000            0x258
398 #define MSR_MTRRfix16K_A0000            0x259
399 #define MSR_MTRRfix4K_C0000             0x268
400 #define MSR_MTRRfix4K_C8000             0x269
401 #define MSR_MTRRfix4K_D0000             0x26a
402 #define MSR_MTRRfix4K_D8000             0x26b
403 #define MSR_MTRRfix4K_E0000             0x26c
404 #define MSR_MTRRfix4K_E8000             0x26d
405 #define MSR_MTRRfix4K_F0000             0x26e
406 #define MSR_MTRRfix4K_F8000             0x26f
407 
408 #define MSR_PAT                         0x277
409 
410 #define MSR_MTRRdefType                 0x2ff
411 
412 #define MSR_CORE_PERF_FIXED_CTR0        0x309
413 #define MSR_CORE_PERF_FIXED_CTR1        0x30a
414 #define MSR_CORE_PERF_FIXED_CTR2        0x30b
415 #define MSR_CORE_PERF_FIXED_CTR_CTRL    0x38d
416 #define MSR_CORE_PERF_GLOBAL_STATUS     0x38e
417 #define MSR_CORE_PERF_GLOBAL_CTRL       0x38f
418 #define MSR_CORE_PERF_GLOBAL_OVF_CTRL   0x390
419 
420 #define MSR_MC0_CTL                     0x400
421 #define MSR_MC0_STATUS                  0x401
422 #define MSR_MC0_ADDR                    0x402
423 #define MSR_MC0_MISC                    0x403
424 
425 #define MSR_IA32_RTIT_OUTPUT_BASE       0x560
426 #define MSR_IA32_RTIT_OUTPUT_MASK       0x561
427 #define MSR_IA32_RTIT_CTL               0x570
428 #define MSR_IA32_RTIT_STATUS            0x571
429 #define MSR_IA32_RTIT_CR3_MATCH         0x572
430 #define MSR_IA32_RTIT_ADDR0_A           0x580
431 #define MSR_IA32_RTIT_ADDR0_B           0x581
432 #define MSR_IA32_RTIT_ADDR1_A           0x582
433 #define MSR_IA32_RTIT_ADDR1_B           0x583
434 #define MSR_IA32_RTIT_ADDR2_A           0x584
435 #define MSR_IA32_RTIT_ADDR2_B           0x585
436 #define MSR_IA32_RTIT_ADDR3_A           0x586
437 #define MSR_IA32_RTIT_ADDR3_B           0x587
438 #define MAX_RTIT_ADDRS                  8
439 
440 #define MSR_EFER                        0xc0000080
441 
442 #define MSR_EFER_SCE   (1 << 0)
443 #define MSR_EFER_LME   (1 << 8)
444 #define MSR_EFER_LMA   (1 << 10)
445 #define MSR_EFER_NXE   (1 << 11)
446 #define MSR_EFER_SVME  (1 << 12)
447 #define MSR_EFER_FFXSR (1 << 14)
448 
449 #define MSR_STAR                        0xc0000081
450 #define MSR_LSTAR                       0xc0000082
451 #define MSR_CSTAR                       0xc0000083
452 #define MSR_FMASK                       0xc0000084
453 #define MSR_FSBASE                      0xc0000100
454 #define MSR_GSBASE                      0xc0000101
455 #define MSR_KERNELGSBASE                0xc0000102
456 #define MSR_TSC_AUX                     0xc0000103
457 
458 #define MSR_VM_HSAVE_PA                 0xc0010117
459 
460 #define MSR_IA32_BNDCFGS                0x00000d90
461 #define MSR_IA32_XSS                    0x00000da0
462 
463 #define XSTATE_FP_BIT                   0
464 #define XSTATE_SSE_BIT                  1
465 #define XSTATE_YMM_BIT                  2
466 #define XSTATE_BNDREGS_BIT              3
467 #define XSTATE_BNDCSR_BIT               4
468 #define XSTATE_OPMASK_BIT               5
469 #define XSTATE_ZMM_Hi256_BIT            6
470 #define XSTATE_Hi16_ZMM_BIT             7
471 #define XSTATE_PKRU_BIT                 9
472 
473 #define XSTATE_FP_MASK                  (1ULL << XSTATE_FP_BIT)
474 #define XSTATE_SSE_MASK                 (1ULL << XSTATE_SSE_BIT)
475 #define XSTATE_YMM_MASK                 (1ULL << XSTATE_YMM_BIT)
476 #define XSTATE_BNDREGS_MASK             (1ULL << XSTATE_BNDREGS_BIT)
477 #define XSTATE_BNDCSR_MASK              (1ULL << XSTATE_BNDCSR_BIT)
478 #define XSTATE_OPMASK_MASK              (1ULL << XSTATE_OPMASK_BIT)
479 #define XSTATE_ZMM_Hi256_MASK           (1ULL << XSTATE_ZMM_Hi256_BIT)
480 #define XSTATE_Hi16_ZMM_MASK            (1ULL << XSTATE_Hi16_ZMM_BIT)
481 #define XSTATE_PKRU_MASK                (1ULL << XSTATE_PKRU_BIT)
482 
483 /* CPUID feature words */
484 typedef enum FeatureWord {
485     FEAT_1_EDX,         /* CPUID[1].EDX */
486     FEAT_1_ECX,         /* CPUID[1].ECX */
487     FEAT_7_0_EBX,       /* CPUID[EAX=7,ECX=0].EBX */
488     FEAT_7_0_ECX,       /* CPUID[EAX=7,ECX=0].ECX */
489     FEAT_7_0_EDX,       /* CPUID[EAX=7,ECX=0].EDX */
490     FEAT_8000_0001_EDX, /* CPUID[8000_0001].EDX */
491     FEAT_8000_0001_ECX, /* CPUID[8000_0001].ECX */
492     FEAT_8000_0007_EDX, /* CPUID[8000_0007].EDX */
493     FEAT_8000_0008_EBX, /* CPUID[8000_0008].EBX */
494     FEAT_C000_0001_EDX, /* CPUID[C000_0001].EDX */
495     FEAT_KVM,           /* CPUID[4000_0001].EAX (KVM_CPUID_FEATURES) */
496     FEAT_KVM_HINTS,     /* CPUID[4000_0001].EDX */
497     FEAT_HYPERV_EAX,    /* CPUID[4000_0003].EAX */
498     FEAT_HYPERV_EBX,    /* CPUID[4000_0003].EBX */
499     FEAT_HYPERV_EDX,    /* CPUID[4000_0003].EDX */
500     FEAT_SVM,           /* CPUID[8000_000A].EDX */
501     FEAT_XSAVE,         /* CPUID[EAX=0xd,ECX=1].EAX */
502     FEAT_6_EAX,         /* CPUID[6].EAX */
503     FEAT_XSAVE_COMP_LO, /* CPUID[EAX=0xd,ECX=0].EAX */
504     FEAT_XSAVE_COMP_HI, /* CPUID[EAX=0xd,ECX=0].EDX */
505     FEAT_ARCH_CAPABILITIES,
506     FEATURE_WORDS,
507 } FeatureWord;
508 
509 typedef uint32_t FeatureWordArray[FEATURE_WORDS];
510 
511 /* cpuid_features bits */
512 #define CPUID_FP87 (1U << 0)
513 #define CPUID_VME  (1U << 1)
514 #define CPUID_DE   (1U << 2)
515 #define CPUID_PSE  (1U << 3)
516 #define CPUID_TSC  (1U << 4)
517 #define CPUID_MSR  (1U << 5)
518 #define CPUID_PAE  (1U << 6)
519 #define CPUID_MCE  (1U << 7)
520 #define CPUID_CX8  (1U << 8)
521 #define CPUID_APIC (1U << 9)
522 #define CPUID_SEP  (1U << 11) /* sysenter/sysexit */
523 #define CPUID_MTRR (1U << 12)
524 #define CPUID_PGE  (1U << 13)
525 #define CPUID_MCA  (1U << 14)
526 #define CPUID_CMOV (1U << 15)
527 #define CPUID_PAT  (1U << 16)
528 #define CPUID_PSE36   (1U << 17)
529 #define CPUID_PN   (1U << 18)
530 #define CPUID_CLFLUSH (1U << 19)
531 #define CPUID_DTS (1U << 21)
532 #define CPUID_ACPI (1U << 22)
533 #define CPUID_MMX  (1U << 23)
534 #define CPUID_FXSR (1U << 24)
535 #define CPUID_SSE  (1U << 25)
536 #define CPUID_SSE2 (1U << 26)
537 #define CPUID_SS (1U << 27)
538 #define CPUID_HT (1U << 28)
539 #define CPUID_TM (1U << 29)
540 #define CPUID_IA64 (1U << 30)
541 #define CPUID_PBE (1U << 31)
542 
543 #define CPUID_EXT_SSE3     (1U << 0)
544 #define CPUID_EXT_PCLMULQDQ (1U << 1)
545 #define CPUID_EXT_DTES64   (1U << 2)
546 #define CPUID_EXT_MONITOR  (1U << 3)
547 #define CPUID_EXT_DSCPL    (1U << 4)
548 #define CPUID_EXT_VMX      (1U << 5)
549 #define CPUID_EXT_SMX      (1U << 6)
550 #define CPUID_EXT_EST      (1U << 7)
551 #define CPUID_EXT_TM2      (1U << 8)
552 #define CPUID_EXT_SSSE3    (1U << 9)
553 #define CPUID_EXT_CID      (1U << 10)
554 #define CPUID_EXT_FMA      (1U << 12)
555 #define CPUID_EXT_CX16     (1U << 13)
556 #define CPUID_EXT_XTPR     (1U << 14)
557 #define CPUID_EXT_PDCM     (1U << 15)
558 #define CPUID_EXT_PCID     (1U << 17)
559 #define CPUID_EXT_DCA      (1U << 18)
560 #define CPUID_EXT_SSE41    (1U << 19)
561 #define CPUID_EXT_SSE42    (1U << 20)
562 #define CPUID_EXT_X2APIC   (1U << 21)
563 #define CPUID_EXT_MOVBE    (1U << 22)
564 #define CPUID_EXT_POPCNT   (1U << 23)
565 #define CPUID_EXT_TSC_DEADLINE_TIMER (1U << 24)
566 #define CPUID_EXT_AES      (1U << 25)
567 #define CPUID_EXT_XSAVE    (1U << 26)
568 #define CPUID_EXT_OSXSAVE  (1U << 27)
569 #define CPUID_EXT_AVX      (1U << 28)
570 #define CPUID_EXT_F16C     (1U << 29)
571 #define CPUID_EXT_RDRAND   (1U << 30)
572 #define CPUID_EXT_HYPERVISOR  (1U << 31)
573 
574 #define CPUID_EXT2_FPU     (1U << 0)
575 #define CPUID_EXT2_VME     (1U << 1)
576 #define CPUID_EXT2_DE      (1U << 2)
577 #define CPUID_EXT2_PSE     (1U << 3)
578 #define CPUID_EXT2_TSC     (1U << 4)
579 #define CPUID_EXT2_MSR     (1U << 5)
580 #define CPUID_EXT2_PAE     (1U << 6)
581 #define CPUID_EXT2_MCE     (1U << 7)
582 #define CPUID_EXT2_CX8     (1U << 8)
583 #define CPUID_EXT2_APIC    (1U << 9)
584 #define CPUID_EXT2_SYSCALL (1U << 11)
585 #define CPUID_EXT2_MTRR    (1U << 12)
586 #define CPUID_EXT2_PGE     (1U << 13)
587 #define CPUID_EXT2_MCA     (1U << 14)
588 #define CPUID_EXT2_CMOV    (1U << 15)
589 #define CPUID_EXT2_PAT     (1U << 16)
590 #define CPUID_EXT2_PSE36   (1U << 17)
591 #define CPUID_EXT2_MP      (1U << 19)
592 #define CPUID_EXT2_NX      (1U << 20)
593 #define CPUID_EXT2_MMXEXT  (1U << 22)
594 #define CPUID_EXT2_MMX     (1U << 23)
595 #define CPUID_EXT2_FXSR    (1U << 24)
596 #define CPUID_EXT2_FFXSR   (1U << 25)
597 #define CPUID_EXT2_PDPE1GB (1U << 26)
598 #define CPUID_EXT2_RDTSCP  (1U << 27)
599 #define CPUID_EXT2_LM      (1U << 29)
600 #define CPUID_EXT2_3DNOWEXT (1U << 30)
601 #define CPUID_EXT2_3DNOW   (1U << 31)
602 
603 /* CPUID[8000_0001].EDX bits that are aliase of CPUID[1].EDX bits on AMD CPUs */
604 #define CPUID_EXT2_AMD_ALIASES (CPUID_EXT2_FPU | CPUID_EXT2_VME | \
605                                 CPUID_EXT2_DE | CPUID_EXT2_PSE | \
606                                 CPUID_EXT2_TSC | CPUID_EXT2_MSR | \
607                                 CPUID_EXT2_PAE | CPUID_EXT2_MCE | \
608                                 CPUID_EXT2_CX8 | CPUID_EXT2_APIC | \
609                                 CPUID_EXT2_MTRR | CPUID_EXT2_PGE | \
610                                 CPUID_EXT2_MCA | CPUID_EXT2_CMOV | \
611                                 CPUID_EXT2_PAT | CPUID_EXT2_PSE36 | \
612                                 CPUID_EXT2_MMX | CPUID_EXT2_FXSR)
613 
614 #define CPUID_EXT3_LAHF_LM (1U << 0)
615 #define CPUID_EXT3_CMP_LEG (1U << 1)
616 #define CPUID_EXT3_SVM     (1U << 2)
617 #define CPUID_EXT3_EXTAPIC (1U << 3)
618 #define CPUID_EXT3_CR8LEG  (1U << 4)
619 #define CPUID_EXT3_ABM     (1U << 5)
620 #define CPUID_EXT3_SSE4A   (1U << 6)
621 #define CPUID_EXT3_MISALIGNSSE (1U << 7)
622 #define CPUID_EXT3_3DNOWPREFETCH (1U << 8)
623 #define CPUID_EXT3_OSVW    (1U << 9)
624 #define CPUID_EXT3_IBS     (1U << 10)
625 #define CPUID_EXT3_XOP     (1U << 11)
626 #define CPUID_EXT3_SKINIT  (1U << 12)
627 #define CPUID_EXT3_WDT     (1U << 13)
628 #define CPUID_EXT3_LWP     (1U << 15)
629 #define CPUID_EXT3_FMA4    (1U << 16)
630 #define CPUID_EXT3_TCE     (1U << 17)
631 #define CPUID_EXT3_NODEID  (1U << 19)
632 #define CPUID_EXT3_TBM     (1U << 21)
633 #define CPUID_EXT3_TOPOEXT (1U << 22)
634 #define CPUID_EXT3_PERFCORE (1U << 23)
635 #define CPUID_EXT3_PERFNB  (1U << 24)
636 
637 #define CPUID_SVM_NPT          (1U << 0)
638 #define CPUID_SVM_LBRV         (1U << 1)
639 #define CPUID_SVM_SVMLOCK      (1U << 2)
640 #define CPUID_SVM_NRIPSAVE     (1U << 3)
641 #define CPUID_SVM_TSCSCALE     (1U << 4)
642 #define CPUID_SVM_VMCBCLEAN    (1U << 5)
643 #define CPUID_SVM_FLUSHASID    (1U << 6)
644 #define CPUID_SVM_DECODEASSIST (1U << 7)
645 #define CPUID_SVM_PAUSEFILTER  (1U << 10)
646 #define CPUID_SVM_PFTHRESHOLD  (1U << 12)
647 
648 #define CPUID_7_0_EBX_FSGSBASE (1U << 0)
649 #define CPUID_7_0_EBX_BMI1     (1U << 3)
650 #define CPUID_7_0_EBX_HLE      (1U << 4)
651 #define CPUID_7_0_EBX_AVX2     (1U << 5)
652 #define CPUID_7_0_EBX_SMEP     (1U << 7)
653 #define CPUID_7_0_EBX_BMI2     (1U << 8)
654 #define CPUID_7_0_EBX_ERMS     (1U << 9)
655 #define CPUID_7_0_EBX_INVPCID  (1U << 10)
656 #define CPUID_7_0_EBX_RTM      (1U << 11)
657 #define CPUID_7_0_EBX_MPX      (1U << 14)
658 #define CPUID_7_0_EBX_AVX512F  (1U << 16) /* AVX-512 Foundation */
659 #define CPUID_7_0_EBX_AVX512DQ (1U << 17) /* AVX-512 Doubleword & Quadword Instrs */
660 #define CPUID_7_0_EBX_RDSEED   (1U << 18)
661 #define CPUID_7_0_EBX_ADX      (1U << 19)
662 #define CPUID_7_0_EBX_SMAP     (1U << 20)
663 #define CPUID_7_0_EBX_AVX512IFMA (1U << 21) /* AVX-512 Integer Fused Multiply Add */
664 #define CPUID_7_0_EBX_PCOMMIT  (1U << 22) /* Persistent Commit */
665 #define CPUID_7_0_EBX_CLFLUSHOPT (1U << 23) /* Flush a Cache Line Optimized */
666 #define CPUID_7_0_EBX_CLWB     (1U << 24) /* Cache Line Write Back */
667 #define CPUID_7_0_EBX_INTEL_PT (1U << 25) /* Intel Processor Trace */
668 #define CPUID_7_0_EBX_AVX512PF (1U << 26) /* AVX-512 Prefetch */
669 #define CPUID_7_0_EBX_AVX512ER (1U << 27) /* AVX-512 Exponential and Reciprocal */
670 #define CPUID_7_0_EBX_AVX512CD (1U << 28) /* AVX-512 Conflict Detection */
671 #define CPUID_7_0_EBX_SHA_NI   (1U << 29) /* SHA1/SHA256 Instruction Extensions */
672 #define CPUID_7_0_EBX_AVX512BW (1U << 30) /* AVX-512 Byte and Word Instructions */
673 #define CPUID_7_0_EBX_AVX512VL (1U << 31) /* AVX-512 Vector Length Extensions */
674 
675 #define CPUID_7_0_ECX_AVX512BMI (1U << 1)
676 #define CPUID_7_0_ECX_VBMI     (1U << 1)  /* AVX-512 Vector Byte Manipulation Instrs */
677 #define CPUID_7_0_ECX_UMIP     (1U << 2)
678 #define CPUID_7_0_ECX_PKU      (1U << 3)
679 #define CPUID_7_0_ECX_OSPKE    (1U << 4)
680 #define CPUID_7_0_ECX_VBMI2    (1U << 6) /* Additional VBMI Instrs */
681 #define CPUID_7_0_ECX_GFNI     (1U << 8)
682 #define CPUID_7_0_ECX_VAES     (1U << 9)
683 #define CPUID_7_0_ECX_VPCLMULQDQ (1U << 10)
684 #define CPUID_7_0_ECX_AVX512VNNI (1U << 11)
685 #define CPUID_7_0_ECX_AVX512BITALG (1U << 12)
686 #define CPUID_7_0_ECX_AVX512_VPOPCNTDQ (1U << 14) /* POPCNT for vectors of DW/QW */
687 #define CPUID_7_0_ECX_LA57     (1U << 16)
688 #define CPUID_7_0_ECX_RDPID    (1U << 22)
689 #define CPUID_7_0_ECX_CLDEMOTE (1U << 25)  /* CLDEMOTE Instruction */
690 
691 #define CPUID_7_0_EDX_AVX512_4VNNIW (1U << 2) /* AVX512 Neural Network Instructions */
692 #define CPUID_7_0_EDX_AVX512_4FMAPS (1U << 3) /* AVX512 Multiply Accumulation Single Precision */
693 #define CPUID_7_0_EDX_PCONFIG (1U << 18)       /* Platform Configuration */
694 #define CPUID_7_0_EDX_SPEC_CTRL     (1U << 26) /* Speculation Control */
695 #define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29)  /*Arch Capabilities*/
696 #define CPUID_7_0_EDX_SPEC_CTRL_SSBD  (1U << 31) /* Speculative Store Bypass Disable */
697 
698 #define CPUID_8000_0008_EBX_WBNOINVD  (1U << 9)  /* Write back and
699                                                                              do not invalidate cache */
700 #define CPUID_8000_0008_EBX_IBPB    (1U << 12) /* Indirect Branch Prediction Barrier */
701 
702 #define CPUID_XSAVE_XSAVEOPT   (1U << 0)
703 #define CPUID_XSAVE_XSAVEC     (1U << 1)
704 #define CPUID_XSAVE_XGETBV1    (1U << 2)
705 #define CPUID_XSAVE_XSAVES     (1U << 3)
706 
707 #define CPUID_6_EAX_ARAT       (1U << 2)
708 
709 /* CPUID[0x80000007].EDX flags: */
710 #define CPUID_APM_INVTSC       (1U << 8)
711 
712 #define CPUID_VENDOR_SZ      12
713 
714 #define CPUID_VENDOR_INTEL_1 0x756e6547 /* "Genu" */
715 #define CPUID_VENDOR_INTEL_2 0x49656e69 /* "ineI" */
716 #define CPUID_VENDOR_INTEL_3 0x6c65746e /* "ntel" */
717 #define CPUID_VENDOR_INTEL "GenuineIntel"
718 
719 #define CPUID_VENDOR_AMD_1   0x68747541 /* "Auth" */
720 #define CPUID_VENDOR_AMD_2   0x69746e65 /* "enti" */
721 #define CPUID_VENDOR_AMD_3   0x444d4163 /* "cAMD" */
722 #define CPUID_VENDOR_AMD   "AuthenticAMD"
723 
724 #define CPUID_VENDOR_VIA   "CentaurHauls"
725 
726 #define CPUID_MWAIT_IBE     (1U << 1) /* Interrupts can exit capability */
727 #define CPUID_MWAIT_EMX     (1U << 0) /* enumeration supported */
728 
729 /* CPUID[0xB].ECX level types */
730 #define CPUID_TOPOLOGY_LEVEL_INVALID  (0U << 8)
731 #define CPUID_TOPOLOGY_LEVEL_SMT      (1U << 8)
732 #define CPUID_TOPOLOGY_LEVEL_CORE     (2U << 8)
733 
734 /* MSR Feature Bits */
735 #define MSR_ARCH_CAP_RDCL_NO    (1U << 0)
736 #define MSR_ARCH_CAP_IBRS_ALL   (1U << 1)
737 #define MSR_ARCH_CAP_RSBA       (1U << 2)
738 #define MSR_ARCH_CAP_SKIP_L1DFL_VMENTRY (1U << 3)
739 #define MSR_ARCH_CAP_SSB_NO     (1U << 4)
740 
741 #ifndef HYPERV_SPINLOCK_NEVER_RETRY
742 #define HYPERV_SPINLOCK_NEVER_RETRY             0xFFFFFFFF
743 #endif
744 
745 #define EXCP00_DIVZ	0
746 #define EXCP01_DB	1
747 #define EXCP02_NMI	2
748 #define EXCP03_INT3	3
749 #define EXCP04_INTO	4
750 #define EXCP05_BOUND	5
751 #define EXCP06_ILLOP	6
752 #define EXCP07_PREX	7
753 #define EXCP08_DBLE	8
754 #define EXCP09_XERR	9
755 #define EXCP0A_TSS	10
756 #define EXCP0B_NOSEG	11
757 #define EXCP0C_STACK	12
758 #define EXCP0D_GPF	13
759 #define EXCP0E_PAGE	14
760 #define EXCP10_COPR	16
761 #define EXCP11_ALGN	17
762 #define EXCP12_MCHK	18
763 
764 #define EXCP_SYSCALL    0x100 /* only happens in user only emulation
765                                  for syscall instruction */
766 #define EXCP_VMEXIT     0x100
767 
768 /* i386-specific interrupt pending bits.  */
769 #define CPU_INTERRUPT_POLL      CPU_INTERRUPT_TGT_EXT_1
770 #define CPU_INTERRUPT_SMI       CPU_INTERRUPT_TGT_EXT_2
771 #define CPU_INTERRUPT_NMI       CPU_INTERRUPT_TGT_EXT_3
772 #define CPU_INTERRUPT_MCE       CPU_INTERRUPT_TGT_EXT_4
773 #define CPU_INTERRUPT_VIRQ      CPU_INTERRUPT_TGT_INT_0
774 #define CPU_INTERRUPT_SIPI      CPU_INTERRUPT_TGT_INT_1
775 #define CPU_INTERRUPT_TPR       CPU_INTERRUPT_TGT_INT_2
776 
777 /* Use a clearer name for this.  */
778 #define CPU_INTERRUPT_INIT      CPU_INTERRUPT_RESET
779 
780 /* Instead of computing the condition codes after each x86 instruction,
781  * QEMU just stores one operand (called CC_SRC), the result
782  * (called CC_DST) and the type of operation (called CC_OP). When the
783  * condition codes are needed, the condition codes can be calculated
784  * using this information. Condition codes are not generated if they
785  * are only needed for conditional branches.
786  */
787 typedef enum {
788     CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
789     CC_OP_EFLAGS,  /* all cc are explicitly computed, CC_SRC = flags */
790 
791     CC_OP_MULB, /* modify all flags, C, O = (CC_SRC != 0) */
792     CC_OP_MULW,
793     CC_OP_MULL,
794     CC_OP_MULQ,
795 
796     CC_OP_ADDB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
797     CC_OP_ADDW,
798     CC_OP_ADDL,
799     CC_OP_ADDQ,
800 
801     CC_OP_ADCB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
802     CC_OP_ADCW,
803     CC_OP_ADCL,
804     CC_OP_ADCQ,
805 
806     CC_OP_SUBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
807     CC_OP_SUBW,
808     CC_OP_SUBL,
809     CC_OP_SUBQ,
810 
811     CC_OP_SBBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
812     CC_OP_SBBW,
813     CC_OP_SBBL,
814     CC_OP_SBBQ,
815 
816     CC_OP_LOGICB, /* modify all flags, CC_DST = res */
817     CC_OP_LOGICW,
818     CC_OP_LOGICL,
819     CC_OP_LOGICQ,
820 
821     CC_OP_INCB, /* modify all flags except, CC_DST = res, CC_SRC = C */
822     CC_OP_INCW,
823     CC_OP_INCL,
824     CC_OP_INCQ,
825 
826     CC_OP_DECB, /* modify all flags except, CC_DST = res, CC_SRC = C  */
827     CC_OP_DECW,
828     CC_OP_DECL,
829     CC_OP_DECQ,
830 
831     CC_OP_SHLB, /* modify all flags, CC_DST = res, CC_SRC.msb = C */
832     CC_OP_SHLW,
833     CC_OP_SHLL,
834     CC_OP_SHLQ,
835 
836     CC_OP_SARB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */
837     CC_OP_SARW,
838     CC_OP_SARL,
839     CC_OP_SARQ,
840 
841     CC_OP_BMILGB, /* Z,S via CC_DST, C = SRC==0; O=0; P,A undefined */
842     CC_OP_BMILGW,
843     CC_OP_BMILGL,
844     CC_OP_BMILGQ,
845 
846     CC_OP_ADCX, /* CC_DST = C, CC_SRC = rest.  */
847     CC_OP_ADOX, /* CC_DST = O, CC_SRC = rest.  */
848     CC_OP_ADCOX, /* CC_DST = C, CC_SRC2 = O, CC_SRC = rest.  */
849 
850     CC_OP_CLR, /* Z set, all other flags clear.  */
851     CC_OP_POPCNT, /* Z via CC_SRC, all other flags clear.  */
852 
853     CC_OP_NB,
854 } CCOp;
855 
856 typedef struct SegmentCache {
857     uint32_t selector;
858     target_ulong base;
859     uint32_t limit;
860     uint32_t flags;
861 } SegmentCache;
862 
863 #define MMREG_UNION(n, bits)        \
864     union n {                       \
865         uint8_t  _b_##n[(bits)/8];  \
866         uint16_t _w_##n[(bits)/16]; \
867         uint32_t _l_##n[(bits)/32]; \
868         uint64_t _q_##n[(bits)/64]; \
869         float32  _s_##n[(bits)/32]; \
870         float64  _d_##n[(bits)/64]; \
871     }
872 
873 typedef union {
874     uint8_t _b[16];
875     uint16_t _w[8];
876     uint32_t _l[4];
877     uint64_t _q[2];
878 } XMMReg;
879 
880 typedef union {
881     uint8_t _b[32];
882     uint16_t _w[16];
883     uint32_t _l[8];
884     uint64_t _q[4];
885 } YMMReg;
886 
887 typedef MMREG_UNION(ZMMReg, 512) ZMMReg;
888 typedef MMREG_UNION(MMXReg, 64)  MMXReg;
889 
890 typedef struct BNDReg {
891     uint64_t lb;
892     uint64_t ub;
893 } BNDReg;
894 
895 typedef struct BNDCSReg {
896     uint64_t cfgu;
897     uint64_t sts;
898 } BNDCSReg;
899 
900 #define BNDCFG_ENABLE       1ULL
901 #define BNDCFG_BNDPRESERVE  2ULL
902 #define BNDCFG_BDIR_MASK    TARGET_PAGE_MASK
903 
904 #ifdef HOST_WORDS_BIGENDIAN
905 #define ZMM_B(n) _b_ZMMReg[63 - (n)]
906 #define ZMM_W(n) _w_ZMMReg[31 - (n)]
907 #define ZMM_L(n) _l_ZMMReg[15 - (n)]
908 #define ZMM_S(n) _s_ZMMReg[15 - (n)]
909 #define ZMM_Q(n) _q_ZMMReg[7 - (n)]
910 #define ZMM_D(n) _d_ZMMReg[7 - (n)]
911 
912 #define MMX_B(n) _b_MMXReg[7 - (n)]
913 #define MMX_W(n) _w_MMXReg[3 - (n)]
914 #define MMX_L(n) _l_MMXReg[1 - (n)]
915 #define MMX_S(n) _s_MMXReg[1 - (n)]
916 #else
917 #define ZMM_B(n) _b_ZMMReg[n]
918 #define ZMM_W(n) _w_ZMMReg[n]
919 #define ZMM_L(n) _l_ZMMReg[n]
920 #define ZMM_S(n) _s_ZMMReg[n]
921 #define ZMM_Q(n) _q_ZMMReg[n]
922 #define ZMM_D(n) _d_ZMMReg[n]
923 
924 #define MMX_B(n) _b_MMXReg[n]
925 #define MMX_W(n) _w_MMXReg[n]
926 #define MMX_L(n) _l_MMXReg[n]
927 #define MMX_S(n) _s_MMXReg[n]
928 #endif
929 #define MMX_Q(n) _q_MMXReg[n]
930 
931 typedef union {
932     floatx80 d __attribute__((aligned(16)));
933     MMXReg mmx;
934 } FPReg;
935 
936 typedef struct {
937     uint64_t base;
938     uint64_t mask;
939 } MTRRVar;
940 
941 #define CPU_NB_REGS64 16
942 #define CPU_NB_REGS32 8
943 
944 #ifdef TARGET_X86_64
945 #define CPU_NB_REGS CPU_NB_REGS64
946 #else
947 #define CPU_NB_REGS CPU_NB_REGS32
948 #endif
949 
950 #define MAX_FIXED_COUNTERS 3
951 #define MAX_GP_COUNTERS    (MSR_IA32_PERF_STATUS - MSR_P6_EVNTSEL0)
952 
953 #define NB_MMU_MODES 3
954 #define TARGET_INSN_START_EXTRA_WORDS 1
955 
956 #define NB_OPMASK_REGS 8
957 
958 /* CPU can't have 0xFFFFFFFF APIC ID, use that value to distinguish
959  * that APIC ID hasn't been set yet
960  */
961 #define UNASSIGNED_APIC_ID 0xFFFFFFFF
962 
963 typedef union X86LegacyXSaveArea {
964     struct {
965         uint16_t fcw;
966         uint16_t fsw;
967         uint8_t ftw;
968         uint8_t reserved;
969         uint16_t fpop;
970         uint64_t fpip;
971         uint64_t fpdp;
972         uint32_t mxcsr;
973         uint32_t mxcsr_mask;
974         FPReg fpregs[8];
975         uint8_t xmm_regs[16][16];
976     };
977     uint8_t data[512];
978 } X86LegacyXSaveArea;
979 
980 typedef struct X86XSaveHeader {
981     uint64_t xstate_bv;
982     uint64_t xcomp_bv;
983     uint64_t reserve0;
984     uint8_t reserved[40];
985 } X86XSaveHeader;
986 
987 /* Ext. save area 2: AVX State */
988 typedef struct XSaveAVX {
989     uint8_t ymmh[16][16];
990 } XSaveAVX;
991 
992 /* Ext. save area 3: BNDREG */
993 typedef struct XSaveBNDREG {
994     BNDReg bnd_regs[4];
995 } XSaveBNDREG;
996 
997 /* Ext. save area 4: BNDCSR */
998 typedef union XSaveBNDCSR {
999     BNDCSReg bndcsr;
1000     uint8_t data[64];
1001 } XSaveBNDCSR;
1002 
1003 /* Ext. save area 5: Opmask */
1004 typedef struct XSaveOpmask {
1005     uint64_t opmask_regs[NB_OPMASK_REGS];
1006 } XSaveOpmask;
1007 
1008 /* Ext. save area 6: ZMM_Hi256 */
1009 typedef struct XSaveZMM_Hi256 {
1010     uint8_t zmm_hi256[16][32];
1011 } XSaveZMM_Hi256;
1012 
1013 /* Ext. save area 7: Hi16_ZMM */
1014 typedef struct XSaveHi16_ZMM {
1015     uint8_t hi16_zmm[16][64];
1016 } XSaveHi16_ZMM;
1017 
1018 /* Ext. save area 9: PKRU state */
1019 typedef struct XSavePKRU {
1020     uint32_t pkru;
1021     uint32_t padding;
1022 } XSavePKRU;
1023 
1024 typedef struct X86XSaveArea {
1025     X86LegacyXSaveArea legacy;
1026     X86XSaveHeader header;
1027 
1028     /* Extended save areas: */
1029 
1030     /* AVX State: */
1031     XSaveAVX avx_state;
1032     uint8_t padding[960 - 576 - sizeof(XSaveAVX)];
1033     /* MPX State: */
1034     XSaveBNDREG bndreg_state;
1035     XSaveBNDCSR bndcsr_state;
1036     /* AVX-512 State: */
1037     XSaveOpmask opmask_state;
1038     XSaveZMM_Hi256 zmm_hi256_state;
1039     XSaveHi16_ZMM hi16_zmm_state;
1040     /* PKRU State: */
1041     XSavePKRU pkru_state;
1042 } X86XSaveArea;
1043 
1044 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, avx_state) != 0x240);
1045 QEMU_BUILD_BUG_ON(sizeof(XSaveAVX) != 0x100);
1046 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndreg_state) != 0x3c0);
1047 QEMU_BUILD_BUG_ON(sizeof(XSaveBNDREG) != 0x40);
1048 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndcsr_state) != 0x400);
1049 QEMU_BUILD_BUG_ON(sizeof(XSaveBNDCSR) != 0x40);
1050 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, opmask_state) != 0x440);
1051 QEMU_BUILD_BUG_ON(sizeof(XSaveOpmask) != 0x40);
1052 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, zmm_hi256_state) != 0x480);
1053 QEMU_BUILD_BUG_ON(sizeof(XSaveZMM_Hi256) != 0x200);
1054 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, hi16_zmm_state) != 0x680);
1055 QEMU_BUILD_BUG_ON(sizeof(XSaveHi16_ZMM) != 0x400);
1056 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, pkru_state) != 0xA80);
1057 QEMU_BUILD_BUG_ON(sizeof(XSavePKRU) != 0x8);
1058 
1059 typedef enum TPRAccess {
1060     TPR_ACCESS_READ,
1061     TPR_ACCESS_WRITE,
1062 } TPRAccess;
1063 
1064 /* Cache information data structures: */
1065 
1066 enum CacheType {
1067     DATA_CACHE,
1068     INSTRUCTION_CACHE,
1069     UNIFIED_CACHE
1070 };
1071 
1072 typedef struct CPUCacheInfo {
1073     enum CacheType type;
1074     uint8_t level;
1075     /* Size in bytes */
1076     uint32_t size;
1077     /* Line size, in bytes */
1078     uint16_t line_size;
1079     /*
1080      * Associativity.
1081      * Note: representation of fully-associative caches is not implemented
1082      */
1083     uint8_t associativity;
1084     /* Physical line partitions. CPUID[0x8000001D].EBX, CPUID[4].EBX */
1085     uint8_t partitions;
1086     /* Number of sets. CPUID[0x8000001D].ECX, CPUID[4].ECX */
1087     uint32_t sets;
1088     /*
1089      * Lines per tag.
1090      * AMD-specific: CPUID[0x80000005], CPUID[0x80000006].
1091      * (Is this synonym to @partitions?)
1092      */
1093     uint8_t lines_per_tag;
1094 
1095     /* Self-initializing cache */
1096     bool self_init;
1097     /*
1098      * WBINVD/INVD is not guaranteed to act upon lower level caches of
1099      * non-originating threads sharing this cache.
1100      * CPUID[4].EDX[bit 0], CPUID[0x8000001D].EDX[bit 0]
1101      */
1102     bool no_invd_sharing;
1103     /*
1104      * Cache is inclusive of lower cache levels.
1105      * CPUID[4].EDX[bit 1], CPUID[0x8000001D].EDX[bit 1].
1106      */
1107     bool inclusive;
1108     /*
1109      * A complex function is used to index the cache, potentially using all
1110      * address bits.  CPUID[4].EDX[bit 2].
1111      */
1112     bool complex_indexing;
1113 } CPUCacheInfo;
1114 
1115 
1116 typedef struct CPUCaches {
1117         CPUCacheInfo *l1d_cache;
1118         CPUCacheInfo *l1i_cache;
1119         CPUCacheInfo *l2_cache;
1120         CPUCacheInfo *l3_cache;
1121 } CPUCaches;
1122 
1123 typedef struct CPUX86State {
1124     /* standard registers */
1125     target_ulong regs[CPU_NB_REGS];
1126     target_ulong eip;
1127     target_ulong eflags; /* eflags register. During CPU emulation, CC
1128                         flags and DF are set to zero because they are
1129                         stored elsewhere */
1130 
1131     /* emulator internal eflags handling */
1132     target_ulong cc_dst;
1133     target_ulong cc_src;
1134     target_ulong cc_src2;
1135     uint32_t cc_op;
1136     int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */
1137     uint32_t hflags; /* TB flags, see HF_xxx constants. These flags
1138                         are known at translation time. */
1139     uint32_t hflags2; /* various other flags, see HF2_xxx constants. */
1140 
1141     /* segments */
1142     SegmentCache segs[6]; /* selector values */
1143     SegmentCache ldt;
1144     SegmentCache tr;
1145     SegmentCache gdt; /* only base and limit are used */
1146     SegmentCache idt; /* only base and limit are used */
1147 
1148     target_ulong cr[5]; /* NOTE: cr1 is unused */
1149     int32_t a20_mask;
1150 
1151     BNDReg bnd_regs[4];
1152     BNDCSReg bndcs_regs;
1153     uint64_t msr_bndcfgs;
1154     uint64_t efer;
1155 
1156     /* Beginning of state preserved by INIT (dummy marker).  */
1157     struct {} start_init_save;
1158 
1159     /* FPU state */
1160     unsigned int fpstt; /* top of stack index */
1161     uint16_t fpus;
1162     uint16_t fpuc;
1163     uint8_t fptags[8];   /* 0 = valid, 1 = empty */
1164     FPReg fpregs[8];
1165     /* KVM-only so far */
1166     uint16_t fpop;
1167     uint64_t fpip;
1168     uint64_t fpdp;
1169 
1170     /* emulator internal variables */
1171     float_status fp_status;
1172     floatx80 ft0;
1173 
1174     float_status mmx_status; /* for 3DNow! float ops */
1175     float_status sse_status;
1176     uint32_t mxcsr;
1177     ZMMReg xmm_regs[CPU_NB_REGS == 8 ? 8 : 32];
1178     ZMMReg xmm_t0;
1179     MMXReg mmx_t0;
1180 
1181     XMMReg ymmh_regs[CPU_NB_REGS];
1182 
1183     uint64_t opmask_regs[NB_OPMASK_REGS];
1184     YMMReg zmmh_regs[CPU_NB_REGS];
1185     ZMMReg hi16_zmm_regs[CPU_NB_REGS];
1186 
1187     /* sysenter registers */
1188     uint32_t sysenter_cs;
1189     target_ulong sysenter_esp;
1190     target_ulong sysenter_eip;
1191     uint64_t star;
1192 
1193     uint64_t vm_hsave;
1194 
1195 #ifdef TARGET_X86_64
1196     target_ulong lstar;
1197     target_ulong cstar;
1198     target_ulong fmask;
1199     target_ulong kernelgsbase;
1200 #endif
1201 
1202     uint64_t tsc;
1203     uint64_t tsc_adjust;
1204     uint64_t tsc_deadline;
1205     uint64_t tsc_aux;
1206 
1207     uint64_t xcr0;
1208 
1209     uint64_t mcg_status;
1210     uint64_t msr_ia32_misc_enable;
1211     uint64_t msr_ia32_feature_control;
1212 
1213     uint64_t msr_fixed_ctr_ctrl;
1214     uint64_t msr_global_ctrl;
1215     uint64_t msr_global_status;
1216     uint64_t msr_global_ovf_ctrl;
1217     uint64_t msr_fixed_counters[MAX_FIXED_COUNTERS];
1218     uint64_t msr_gp_counters[MAX_GP_COUNTERS];
1219     uint64_t msr_gp_evtsel[MAX_GP_COUNTERS];
1220 
1221     uint64_t pat;
1222     uint32_t smbase;
1223     uint64_t msr_smi_count;
1224 
1225     uint32_t pkru;
1226 
1227     uint64_t spec_ctrl;
1228     uint64_t virt_ssbd;
1229 
1230     /* End of state preserved by INIT (dummy marker).  */
1231     struct {} end_init_save;
1232 
1233     uint64_t system_time_msr;
1234     uint64_t wall_clock_msr;
1235     uint64_t steal_time_msr;
1236     uint64_t async_pf_en_msr;
1237     uint64_t pv_eoi_en_msr;
1238 
1239     /* Partition-wide HV MSRs, will be updated only on the first vcpu */
1240     uint64_t msr_hv_hypercall;
1241     uint64_t msr_hv_guest_os_id;
1242     uint64_t msr_hv_tsc;
1243 
1244     /* Per-VCPU HV MSRs */
1245     uint64_t msr_hv_vapic;
1246     uint64_t msr_hv_crash_params[HV_CRASH_PARAMS];
1247     uint64_t msr_hv_runtime;
1248     uint64_t msr_hv_synic_control;
1249     uint64_t msr_hv_synic_evt_page;
1250     uint64_t msr_hv_synic_msg_page;
1251     uint64_t msr_hv_synic_sint[HV_SINT_COUNT];
1252     uint64_t msr_hv_stimer_config[HV_STIMER_COUNT];
1253     uint64_t msr_hv_stimer_count[HV_STIMER_COUNT];
1254     uint64_t msr_hv_reenlightenment_control;
1255     uint64_t msr_hv_tsc_emulation_control;
1256     uint64_t msr_hv_tsc_emulation_status;
1257 
1258     uint64_t msr_rtit_ctrl;
1259     uint64_t msr_rtit_status;
1260     uint64_t msr_rtit_output_base;
1261     uint64_t msr_rtit_output_mask;
1262     uint64_t msr_rtit_cr3_match;
1263     uint64_t msr_rtit_addrs[MAX_RTIT_ADDRS];
1264 
1265     /* exception/interrupt handling */
1266     int error_code;
1267     int exception_is_int;
1268     target_ulong exception_next_eip;
1269     target_ulong dr[8]; /* debug registers; note dr4 and dr5 are unused */
1270     union {
1271         struct CPUBreakpoint *cpu_breakpoint[4];
1272         struct CPUWatchpoint *cpu_watchpoint[4];
1273     }; /* break/watchpoints for dr[0..3] */
1274     int old_exception;  /* exception in flight */
1275 
1276     uint64_t vm_vmcb;
1277     uint64_t tsc_offset;
1278     uint64_t intercept;
1279     uint16_t intercept_cr_read;
1280     uint16_t intercept_cr_write;
1281     uint16_t intercept_dr_read;
1282     uint16_t intercept_dr_write;
1283     uint32_t intercept_exceptions;
1284     uint64_t nested_cr3;
1285     uint32_t nested_pg_mode;
1286     uint8_t v_tpr;
1287 
1288     /* KVM states, automatically cleared on reset */
1289     uint8_t nmi_injected;
1290     uint8_t nmi_pending;
1291 
1292     uintptr_t retaddr;
1293 
1294     /* Fields up to this point are cleared by a CPU reset */
1295     struct {} end_reset_fields;
1296 
1297     CPU_COMMON
1298 
1299     /* Fields after CPU_COMMON are preserved across CPU reset. */
1300 
1301     /* processor features (e.g. for CPUID insn) */
1302     /* Minimum level/xlevel/xlevel2, based on CPU model + features */
1303     uint32_t cpuid_min_level, cpuid_min_xlevel, cpuid_min_xlevel2;
1304     /* Maximum level/xlevel/xlevel2 value for auto-assignment: */
1305     uint32_t cpuid_max_level, cpuid_max_xlevel, cpuid_max_xlevel2;
1306     /* Actual level/xlevel/xlevel2 value: */
1307     uint32_t cpuid_level, cpuid_xlevel, cpuid_xlevel2;
1308     uint32_t cpuid_vendor1;
1309     uint32_t cpuid_vendor2;
1310     uint32_t cpuid_vendor3;
1311     uint32_t cpuid_version;
1312     FeatureWordArray features;
1313     /* Features that were explicitly enabled/disabled */
1314     FeatureWordArray user_features;
1315     uint32_t cpuid_model[12];
1316     /* Cache information for CPUID.  When legacy-cache=on, the cache data
1317      * on each CPUID leaf will be different, because we keep compatibility
1318      * with old QEMU versions.
1319      */
1320     CPUCaches cache_info_cpuid2, cache_info_cpuid4, cache_info_amd;
1321 
1322     /* MTRRs */
1323     uint64_t mtrr_fixed[11];
1324     uint64_t mtrr_deftype;
1325     MTRRVar mtrr_var[MSR_MTRRcap_VCNT];
1326 
1327     /* For KVM */
1328     uint32_t mp_state;
1329     int32_t exception_injected;
1330     int32_t interrupt_injected;
1331     uint8_t soft_interrupt;
1332     uint8_t has_error_code;
1333     uint32_t ins_len;
1334     uint32_t sipi_vector;
1335     bool tsc_valid;
1336     int64_t tsc_khz;
1337     int64_t user_tsc_khz; /* for sanity check only */
1338 #if defined(CONFIG_KVM) || defined(CONFIG_HVF)
1339     void *xsave_buf;
1340 #endif
1341 #if defined(CONFIG_HVF)
1342     HVFX86EmulatorState *hvf_emul;
1343 #endif
1344 
1345     uint64_t mcg_cap;
1346     uint64_t mcg_ctl;
1347     uint64_t mcg_ext_ctl;
1348     uint64_t mce_banks[MCE_BANKS_DEF*4];
1349     uint64_t xstate_bv;
1350 
1351     /* vmstate */
1352     uint16_t fpus_vmstate;
1353     uint16_t fptag_vmstate;
1354     uint16_t fpregs_format_vmstate;
1355 
1356     uint64_t xss;
1357 
1358     TPRAccess tpr_access_type;
1359 } CPUX86State;
1360 
1361 struct kvm_msrs;
1362 
1363 /**
1364  * X86CPU:
1365  * @env: #CPUX86State
1366  * @migratable: If set, only migratable flags will be accepted when "enforce"
1367  * mode is used, and only migratable flags will be included in the "host"
1368  * CPU model.
1369  *
1370  * An x86 CPU.
1371  */
1372 struct X86CPU {
1373     /*< private >*/
1374     CPUState parent_obj;
1375     /*< public >*/
1376 
1377     CPUX86State env;
1378 
1379     bool hyperv_vapic;
1380     bool hyperv_relaxed_timing;
1381     int hyperv_spinlock_attempts;
1382     char *hyperv_vendor_id;
1383     bool hyperv_time;
1384     bool hyperv_crash;
1385     bool hyperv_reset;
1386     bool hyperv_vpindex;
1387     bool hyperv_runtime;
1388     bool hyperv_synic;
1389     bool hyperv_synic_kvm_only;
1390     bool hyperv_stimer;
1391     bool hyperv_frequencies;
1392     bool hyperv_reenlightenment;
1393     bool hyperv_tlbflush;
1394     bool hyperv_ipi;
1395     bool check_cpuid;
1396     bool enforce_cpuid;
1397     bool expose_kvm;
1398     bool expose_tcg;
1399     bool migratable;
1400     bool migrate_smi_count;
1401     bool max_features; /* Enable all supported features automatically */
1402     uint32_t apic_id;
1403 
1404     /* Enables publishing of TSC increment and Local APIC bus frequencies to
1405      * the guest OS in CPUID page 0x40000010, the same way that VMWare does. */
1406     bool vmware_cpuid_freq;
1407 
1408     /* if true the CPUID code directly forward host cache leaves to the guest */
1409     bool cache_info_passthrough;
1410 
1411     /* if true the CPUID code directly forwards
1412      * host monitor/mwait leaves to the guest */
1413     struct {
1414         uint32_t eax;
1415         uint32_t ebx;
1416         uint32_t ecx;
1417         uint32_t edx;
1418     } mwait;
1419 
1420     /* Features that were filtered out because of missing host capabilities */
1421     uint32_t filtered_features[FEATURE_WORDS];
1422 
1423     /* Enable PMU CPUID bits. This can't be enabled by default yet because
1424      * it doesn't have ABI stability guarantees, as it passes all PMU CPUID
1425      * bits returned by GET_SUPPORTED_CPUID (that depend on host CPU and kernel
1426      * capabilities) directly to the guest.
1427      */
1428     bool enable_pmu;
1429 
1430     /* LMCE support can be enabled/disabled via cpu option 'lmce=on/off'. It is
1431      * disabled by default to avoid breaking migration between QEMU with
1432      * different LMCE configurations.
1433      */
1434     bool enable_lmce;
1435 
1436     /* Compatibility bits for old machine types.
1437      * If true present virtual l3 cache for VM, the vcpus in the same virtual
1438      * socket share an virtual l3 cache.
1439      */
1440     bool enable_l3_cache;
1441 
1442     /* Compatibility bits for old machine types.
1443      * If true present the old cache topology information
1444      */
1445     bool legacy_cache;
1446 
1447     /* Compatibility bits for old machine types: */
1448     bool enable_cpuid_0xb;
1449 
1450     /* Enable auto level-increase for all CPUID leaves */
1451     bool full_cpuid_auto_level;
1452 
1453     /* if true fill the top bits of the MTRR_PHYSMASKn variable range */
1454     bool fill_mtrr_mask;
1455 
1456     /* if true override the phys_bits value with a value read from the host */
1457     bool host_phys_bits;
1458 
1459     /* Stop SMI delivery for migration compatibility with old machines */
1460     bool kvm_no_smi_migration;
1461 
1462     /* Number of physical address bits supported */
1463     uint32_t phys_bits;
1464 
1465     /* in order to simplify APIC support, we leave this pointer to the
1466        user */
1467     struct DeviceState *apic_state;
1468     struct MemoryRegion *cpu_as_root, *cpu_as_mem, *smram;
1469     Notifier machine_done;
1470 
1471     struct kvm_msrs *kvm_msr_buf;
1472 
1473     int32_t node_id; /* NUMA node this CPU belongs to */
1474     int32_t socket_id;
1475     int32_t core_id;
1476     int32_t thread_id;
1477 
1478     int32_t hv_max_vps;
1479 };
1480 
1481 static inline X86CPU *x86_env_get_cpu(CPUX86State *env)
1482 {
1483     return container_of(env, X86CPU, env);
1484 }
1485 
1486 #define ENV_GET_CPU(e) CPU(x86_env_get_cpu(e))
1487 
1488 #define ENV_OFFSET offsetof(X86CPU, env)
1489 
1490 #ifndef CONFIG_USER_ONLY
1491 extern struct VMStateDescription vmstate_x86_cpu;
1492 #endif
1493 
1494 /**
1495  * x86_cpu_do_interrupt:
1496  * @cpu: vCPU the interrupt is to be handled by.
1497  */
1498 void x86_cpu_do_interrupt(CPUState *cpu);
1499 bool x86_cpu_exec_interrupt(CPUState *cpu, int int_req);
1500 int x86_cpu_pending_interrupt(CPUState *cs, int interrupt_request);
1501 
1502 int x86_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
1503                              int cpuid, void *opaque);
1504 int x86_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu,
1505                              int cpuid, void *opaque);
1506 int x86_cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
1507                                  void *opaque);
1508 int x86_cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
1509                                  void *opaque);
1510 
1511 void x86_cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
1512                                 Error **errp);
1513 
1514 void x86_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
1515                         int flags);
1516 
1517 hwaddr x86_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
1518 
1519 int x86_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
1520 int x86_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
1521 
1522 void x86_cpu_exec_enter(CPUState *cpu);
1523 void x86_cpu_exec_exit(CPUState *cpu);
1524 
1525 void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf);
1526 int cpu_x86_support_mca_broadcast(CPUX86State *env);
1527 
1528 int cpu_get_pic_interrupt(CPUX86State *s);
1529 /* MSDOS compatibility mode FPU exception support */
1530 void cpu_set_ferr(CPUX86State *s);
1531 /* mpx_helper.c */
1532 void cpu_sync_bndcs_hflags(CPUX86State *env);
1533 
1534 /* this function must always be used to load data in the segment
1535    cache: it synchronizes the hflags with the segment cache values */
1536 static inline void cpu_x86_load_seg_cache(CPUX86State *env,
1537                                           int seg_reg, unsigned int selector,
1538                                           target_ulong base,
1539                                           unsigned int limit,
1540                                           unsigned int flags)
1541 {
1542     SegmentCache *sc;
1543     unsigned int new_hflags;
1544 
1545     sc = &env->segs[seg_reg];
1546     sc->selector = selector;
1547     sc->base = base;
1548     sc->limit = limit;
1549     sc->flags = flags;
1550 
1551     /* update the hidden flags */
1552     {
1553         if (seg_reg == R_CS) {
1554 #ifdef TARGET_X86_64
1555             if ((env->hflags & HF_LMA_MASK) && (flags & DESC_L_MASK)) {
1556                 /* long mode */
1557                 env->hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK;
1558                 env->hflags &= ~(HF_ADDSEG_MASK);
1559             } else
1560 #endif
1561             {
1562                 /* legacy / compatibility case */
1563                 new_hflags = (env->segs[R_CS].flags & DESC_B_MASK)
1564                     >> (DESC_B_SHIFT - HF_CS32_SHIFT);
1565                 env->hflags = (env->hflags & ~(HF_CS32_MASK | HF_CS64_MASK)) |
1566                     new_hflags;
1567             }
1568         }
1569         if (seg_reg == R_SS) {
1570             int cpl = (flags >> DESC_DPL_SHIFT) & 3;
1571 #if HF_CPL_MASK != 3
1572 #error HF_CPL_MASK is hardcoded
1573 #endif
1574             env->hflags = (env->hflags & ~HF_CPL_MASK) | cpl;
1575             /* Possibly switch between BNDCFGS and BNDCFGU */
1576             cpu_sync_bndcs_hflags(env);
1577         }
1578         new_hflags = (env->segs[R_SS].flags & DESC_B_MASK)
1579             >> (DESC_B_SHIFT - HF_SS32_SHIFT);
1580         if (env->hflags & HF_CS64_MASK) {
1581             /* zero base assumed for DS, ES and SS in long mode */
1582         } else if (!(env->cr[0] & CR0_PE_MASK) ||
1583                    (env->eflags & VM_MASK) ||
1584                    !(env->hflags & HF_CS32_MASK)) {
1585             /* XXX: try to avoid this test. The problem comes from the
1586                fact that is real mode or vm86 mode we only modify the
1587                'base' and 'selector' fields of the segment cache to go
1588                faster. A solution may be to force addseg to one in
1589                translate-i386.c. */
1590             new_hflags |= HF_ADDSEG_MASK;
1591         } else {
1592             new_hflags |= ((env->segs[R_DS].base |
1593                             env->segs[R_ES].base |
1594                             env->segs[R_SS].base) != 0) <<
1595                 HF_ADDSEG_SHIFT;
1596         }
1597         env->hflags = (env->hflags &
1598                        ~(HF_SS32_MASK | HF_ADDSEG_MASK)) | new_hflags;
1599     }
1600 }
1601 
1602 static inline void cpu_x86_load_seg_cache_sipi(X86CPU *cpu,
1603                                                uint8_t sipi_vector)
1604 {
1605     CPUState *cs = CPU(cpu);
1606     CPUX86State *env = &cpu->env;
1607 
1608     env->eip = 0;
1609     cpu_x86_load_seg_cache(env, R_CS, sipi_vector << 8,
1610                            sipi_vector << 12,
1611                            env->segs[R_CS].limit,
1612                            env->segs[R_CS].flags);
1613     cs->halted = 0;
1614 }
1615 
1616 int cpu_x86_get_descr_debug(CPUX86State *env, unsigned int selector,
1617                             target_ulong *base, unsigned int *limit,
1618                             unsigned int *flags);
1619 
1620 /* op_helper.c */
1621 /* used for debug or cpu save/restore */
1622 
1623 /* cpu-exec.c */
1624 /* the following helpers are only usable in user mode simulation as
1625    they can trigger unexpected exceptions */
1626 void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector);
1627 void cpu_x86_fsave(CPUX86State *s, target_ulong ptr, int data32);
1628 void cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32);
1629 void cpu_x86_fxsave(CPUX86State *s, target_ulong ptr);
1630 void cpu_x86_fxrstor(CPUX86State *s, target_ulong ptr);
1631 
1632 /* you can call this signal handler from your SIGBUS and SIGSEGV
1633    signal handlers to inform the virtual CPU of exceptions. non zero
1634    is returned if the signal was handled by the virtual CPU.  */
1635 int cpu_x86_signal_handler(int host_signum, void *pinfo,
1636                            void *puc);
1637 
1638 /* cpu.c */
1639 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
1640                    uint32_t *eax, uint32_t *ebx,
1641                    uint32_t *ecx, uint32_t *edx);
1642 void cpu_clear_apic_feature(CPUX86State *env);
1643 void host_cpuid(uint32_t function, uint32_t count,
1644                 uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
1645 void host_vendor_fms(char *vendor, int *family, int *model, int *stepping);
1646 
1647 /* helper.c */
1648 int x86_cpu_handle_mmu_fault(CPUState *cpu, vaddr addr, int size,
1649                              int is_write, int mmu_idx);
1650 void x86_cpu_set_a20(X86CPU *cpu, int a20_state);
1651 
1652 #ifndef CONFIG_USER_ONLY
1653 static inline int x86_asidx_from_attrs(CPUState *cs, MemTxAttrs attrs)
1654 {
1655     return !!attrs.secure;
1656 }
1657 
1658 static inline AddressSpace *cpu_addressspace(CPUState *cs, MemTxAttrs attrs)
1659 {
1660     return cpu_get_address_space(cs, cpu_asidx_from_attrs(cs, attrs));
1661 }
1662 
1663 uint8_t x86_ldub_phys(CPUState *cs, hwaddr addr);
1664 uint32_t x86_lduw_phys(CPUState *cs, hwaddr addr);
1665 uint32_t x86_ldl_phys(CPUState *cs, hwaddr addr);
1666 uint64_t x86_ldq_phys(CPUState *cs, hwaddr addr);
1667 void x86_stb_phys(CPUState *cs, hwaddr addr, uint8_t val);
1668 void x86_stl_phys_notdirty(CPUState *cs, hwaddr addr, uint32_t val);
1669 void x86_stw_phys(CPUState *cs, hwaddr addr, uint32_t val);
1670 void x86_stl_phys(CPUState *cs, hwaddr addr, uint32_t val);
1671 void x86_stq_phys(CPUState *cs, hwaddr addr, uint64_t val);
1672 #endif
1673 
1674 void breakpoint_handler(CPUState *cs);
1675 
1676 /* will be suppressed */
1677 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0);
1678 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3);
1679 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4);
1680 void cpu_x86_update_dr7(CPUX86State *env, uint32_t new_dr7);
1681 
1682 /* hw/pc.c */
1683 uint64_t cpu_get_tsc(CPUX86State *env);
1684 
1685 #define TARGET_PAGE_BITS 12
1686 
1687 #ifdef TARGET_X86_64
1688 #define TARGET_PHYS_ADDR_SPACE_BITS 52
1689 /* ??? This is really 48 bits, sign-extended, but the only thing
1690    accessible to userland with bit 48 set is the VSYSCALL, and that
1691    is handled via other mechanisms.  */
1692 #define TARGET_VIRT_ADDR_SPACE_BITS 47
1693 #else
1694 #define TARGET_PHYS_ADDR_SPACE_BITS 36
1695 #define TARGET_VIRT_ADDR_SPACE_BITS 32
1696 #endif
1697 
1698 /* XXX: This value should match the one returned by CPUID
1699  * and in exec.c */
1700 # if defined(TARGET_X86_64)
1701 # define TCG_PHYS_ADDR_BITS 40
1702 # else
1703 # define TCG_PHYS_ADDR_BITS 36
1704 # endif
1705 
1706 #define PHYS_ADDR_MASK MAKE_64BIT_MASK(0, TCG_PHYS_ADDR_BITS)
1707 
1708 #define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
1709 #define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
1710 #define CPU_RESOLVING_TYPE TYPE_X86_CPU
1711 
1712 #ifdef TARGET_X86_64
1713 #define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu64")
1714 #else
1715 #define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu32")
1716 #endif
1717 
1718 #define cpu_signal_handler cpu_x86_signal_handler
1719 #define cpu_list x86_cpu_list
1720 
1721 /* MMU modes definitions */
1722 #define MMU_MODE0_SUFFIX _ksmap
1723 #define MMU_MODE1_SUFFIX _user
1724 #define MMU_MODE2_SUFFIX _knosmap /* SMAP disabled or CPL<3 && AC=1 */
1725 #define MMU_KSMAP_IDX   0
1726 #define MMU_USER_IDX    1
1727 #define MMU_KNOSMAP_IDX 2
1728 static inline int cpu_mmu_index(CPUX86State *env, bool ifetch)
1729 {
1730     return (env->hflags & HF_CPL_MASK) == 3 ? MMU_USER_IDX :
1731         (!(env->hflags & HF_SMAP_MASK) || (env->eflags & AC_MASK))
1732         ? MMU_KNOSMAP_IDX : MMU_KSMAP_IDX;
1733 }
1734 
1735 static inline int cpu_mmu_index_kernel(CPUX86State *env)
1736 {
1737     return !(env->hflags & HF_SMAP_MASK) ? MMU_KNOSMAP_IDX :
1738         ((env->hflags & HF_CPL_MASK) < 3 && (env->eflags & AC_MASK))
1739         ? MMU_KNOSMAP_IDX : MMU_KSMAP_IDX;
1740 }
1741 
1742 #define CC_DST  (env->cc_dst)
1743 #define CC_SRC  (env->cc_src)
1744 #define CC_SRC2 (env->cc_src2)
1745 #define CC_OP   (env->cc_op)
1746 
1747 /* n must be a constant to be efficient */
1748 static inline target_long lshift(target_long x, int n)
1749 {
1750     if (n >= 0) {
1751         return x << n;
1752     } else {
1753         return x >> (-n);
1754     }
1755 }
1756 
1757 /* float macros */
1758 #define FT0    (env->ft0)
1759 #define ST0    (env->fpregs[env->fpstt].d)
1760 #define ST(n)  (env->fpregs[(env->fpstt + (n)) & 7].d)
1761 #define ST1    ST(1)
1762 
1763 /* translate.c */
1764 void tcg_x86_init(void);
1765 
1766 #include "exec/cpu-all.h"
1767 #include "svm.h"
1768 
1769 #if !defined(CONFIG_USER_ONLY)
1770 #include "hw/i386/apic.h"
1771 #endif
1772 
1773 static inline void cpu_get_tb_cpu_state(CPUX86State *env, target_ulong *pc,
1774                                         target_ulong *cs_base, uint32_t *flags)
1775 {
1776     *cs_base = env->segs[R_CS].base;
1777     *pc = *cs_base + env->eip;
1778     *flags = env->hflags |
1779         (env->eflags & (IOPL_MASK | TF_MASK | RF_MASK | VM_MASK | AC_MASK));
1780 }
1781 
1782 void do_cpu_init(X86CPU *cpu);
1783 void do_cpu_sipi(X86CPU *cpu);
1784 
1785 #define MCE_INJECT_BROADCAST    1
1786 #define MCE_INJECT_UNCOND_AO    2
1787 
1788 void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank,
1789                         uint64_t status, uint64_t mcg_status, uint64_t addr,
1790                         uint64_t misc, int flags);
1791 
1792 /* excp_helper.c */
1793 void QEMU_NORETURN raise_exception(CPUX86State *env, int exception_index);
1794 void QEMU_NORETURN raise_exception_ra(CPUX86State *env, int exception_index,
1795                                       uintptr_t retaddr);
1796 void QEMU_NORETURN raise_exception_err(CPUX86State *env, int exception_index,
1797                                        int error_code);
1798 void QEMU_NORETURN raise_exception_err_ra(CPUX86State *env, int exception_index,
1799                                           int error_code, uintptr_t retaddr);
1800 void QEMU_NORETURN raise_interrupt(CPUX86State *nenv, int intno, int is_int,
1801                                    int error_code, int next_eip_addend);
1802 
1803 /* cc_helper.c */
1804 extern const uint8_t parity_table[256];
1805 uint32_t cpu_cc_compute_all(CPUX86State *env1, int op);
1806 
1807 static inline uint32_t cpu_compute_eflags(CPUX86State *env)
1808 {
1809     uint32_t eflags = env->eflags;
1810     if (tcg_enabled()) {
1811         eflags |= cpu_cc_compute_all(env, CC_OP) | (env->df & DF_MASK);
1812     }
1813     return eflags;
1814 }
1815 
1816 /* NOTE: the translator must set DisasContext.cc_op to CC_OP_EFLAGS
1817  * after generating a call to a helper that uses this.
1818  */
1819 static inline void cpu_load_eflags(CPUX86State *env, int eflags,
1820                                    int update_mask)
1821 {
1822     CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1823     CC_OP = CC_OP_EFLAGS;
1824     env->df = 1 - (2 * ((eflags >> 10) & 1));
1825     env->eflags = (env->eflags & ~update_mask) |
1826         (eflags & update_mask) | 0x2;
1827 }
1828 
1829 /* load efer and update the corresponding hflags. XXX: do consistency
1830    checks with cpuid bits? */
1831 static inline void cpu_load_efer(CPUX86State *env, uint64_t val)
1832 {
1833     env->efer = val;
1834     env->hflags &= ~(HF_LMA_MASK | HF_SVME_MASK);
1835     if (env->efer & MSR_EFER_LMA) {
1836         env->hflags |= HF_LMA_MASK;
1837     }
1838     if (env->efer & MSR_EFER_SVME) {
1839         env->hflags |= HF_SVME_MASK;
1840     }
1841 }
1842 
1843 static inline MemTxAttrs cpu_get_mem_attrs(CPUX86State *env)
1844 {
1845     return ((MemTxAttrs) { .secure = (env->hflags & HF_SMM_MASK) != 0 });
1846 }
1847 
1848 static inline int32_t x86_get_a20_mask(CPUX86State *env)
1849 {
1850     if (env->hflags & HF_SMM_MASK) {
1851         return -1;
1852     } else {
1853         return env->a20_mask;
1854     }
1855 }
1856 
1857 /* fpu_helper.c */
1858 void update_fp_status(CPUX86State *env);
1859 void update_mxcsr_status(CPUX86State *env);
1860 
1861 static inline void cpu_set_mxcsr(CPUX86State *env, uint32_t mxcsr)
1862 {
1863     env->mxcsr = mxcsr;
1864     if (tcg_enabled()) {
1865         update_mxcsr_status(env);
1866     }
1867 }
1868 
1869 static inline void cpu_set_fpuc(CPUX86State *env, uint16_t fpuc)
1870 {
1871      env->fpuc = fpuc;
1872      if (tcg_enabled()) {
1873         update_fp_status(env);
1874      }
1875 }
1876 
1877 /* mem_helper.c */
1878 void helper_lock_init(void);
1879 
1880 /* svm_helper.c */
1881 void cpu_svm_check_intercept_param(CPUX86State *env1, uint32_t type,
1882                                    uint64_t param, uintptr_t retaddr);
1883 void QEMU_NORETURN cpu_vmexit(CPUX86State *nenv, uint32_t exit_code,
1884                               uint64_t exit_info_1, uintptr_t retaddr);
1885 void do_vmexit(CPUX86State *env, uint32_t exit_code, uint64_t exit_info_1);
1886 
1887 /* seg_helper.c */
1888 void do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw);
1889 
1890 /* smm_helper.c */
1891 void do_smm_enter(X86CPU *cpu);
1892 
1893 /* apic.c */
1894 void cpu_report_tpr_access(CPUX86State *env, TPRAccess access);
1895 void apic_handle_tpr_access_report(DeviceState *d, target_ulong ip,
1896                                    TPRAccess access);
1897 
1898 
1899 /* Change the value of a KVM-specific default
1900  *
1901  * If value is NULL, no default will be set and the original
1902  * value from the CPU model table will be kept.
1903  *
1904  * It is valid to call this function only for properties that
1905  * are already present in the kvm_default_props table.
1906  */
1907 void x86_cpu_change_kvm_default(const char *prop, const char *value);
1908 
1909 /* Return name of 32-bit register, from a R_* constant */
1910 const char *get_register_name_32(unsigned int reg);
1911 
1912 void enable_compat_apic_id_mode(void);
1913 
1914 #define APIC_DEFAULT_ADDRESS 0xfee00000
1915 #define APIC_SPACE_SIZE      0x100000
1916 
1917 void x86_cpu_dump_local_apic_state(CPUState *cs, FILE *f,
1918                                    fprintf_function cpu_fprintf, int flags);
1919 
1920 /* cpu.c */
1921 bool cpu_is_bsp(X86CPU *cpu);
1922 
1923 void x86_cpu_xrstor_all_areas(X86CPU *cpu, const X86XSaveArea *buf);
1924 void x86_cpu_xsave_all_areas(X86CPU *cpu, X86XSaveArea *buf);
1925 void x86_update_hflags(CPUX86State* env);
1926 
1927 #endif /* I386_CPU_H */
1928