2 * i386 virtual CPU header
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/>.
23 #include "qemu-common.h"
26 #define TARGET_LONG_BITS 64
28 #define TARGET_LONG_BITS 32
31 /* target supports implicit self modifying code */
32 #define TARGET_HAS_SMC
33 /* support for self modifying code even if the modified instruction is
34 close to the modifying instruction */
35 #define TARGET_HAS_PRECISE_SMC
37 #define TARGET_HAS_ICE 1
40 #define ELF_MACHINE EM_X86_64
42 #define ELF_MACHINE EM_386
45 #define CPUArchState struct CPUX86State
47 #include "exec/cpu-defs.h"
49 #include "softfloat.h"
76 /* segment descriptor fields */
77 #define DESC_G_MASK (1 << 23)
78 #define DESC_B_SHIFT 22
79 #define DESC_B_MASK (1 << DESC_B_SHIFT)
80 #define DESC_L_SHIFT 21 /* x86_64 only : 64 bit code segment */
81 #define DESC_L_MASK (1 << DESC_L_SHIFT)
82 #define DESC_AVL_MASK (1 << 20)
83 #define DESC_P_MASK (1 << 15)
84 #define DESC_DPL_SHIFT 13
85 #define DESC_DPL_MASK (3 << DESC_DPL_SHIFT)
86 #define DESC_S_MASK (1 << 12)
87 #define DESC_TYPE_SHIFT 8
88 #define DESC_TYPE_MASK (15 << DESC_TYPE_SHIFT)
89 #define DESC_A_MASK (1 << 8)
91 #define DESC_CS_MASK (1 << 11) /* 1=code segment 0=data segment */
92 #define DESC_C_MASK (1 << 10) /* code: conforming */
93 #define DESC_R_MASK (1 << 9) /* code: readable */
95 #define DESC_E_MASK (1 << 10) /* data: expansion direction */
96 #define DESC_W_MASK (1 << 9) /* data: writable */
98 #define DESC_TSS_BUSY_MASK (1 << 9)
109 #define IOPL_SHIFT 12
112 #define TF_MASK 0x00000100
113 #define IF_MASK 0x00000200
114 #define DF_MASK 0x00000400
115 #define IOPL_MASK 0x00003000
116 #define NT_MASK 0x00004000
117 #define RF_MASK 0x00010000
118 #define VM_MASK 0x00020000
119 #define AC_MASK 0x00040000
120 #define VIF_MASK 0x00080000
121 #define VIP_MASK 0x00100000
122 #define ID_MASK 0x00200000
124 /* hidden flags - used internally by qemu to represent additional cpu
125 states. Only the CPL, INHIBIT_IRQ, SMM and SVMI are not
126 redundant. We avoid using the IOPL_MASK, TF_MASK, VM_MASK and AC_MASK
127 bit positions to ease oring with eflags. */
129 #define HF_CPL_SHIFT 0
130 /* true if soft mmu is being used */
131 #define HF_SOFTMMU_SHIFT 2
132 /* true if hardware interrupts must be disabled for next instruction */
133 #define HF_INHIBIT_IRQ_SHIFT 3
134 /* 16 or 32 segments */
135 #define HF_CS32_SHIFT 4
136 #define HF_SS32_SHIFT 5
137 /* zero base for DS, ES and SS : can be '0' only in 32 bit CS segment */
138 #define HF_ADDSEG_SHIFT 6
139 /* copy of CR0.PE (protected mode) */
140 #define HF_PE_SHIFT 7
141 #define HF_TF_SHIFT 8 /* must be same as eflags */
142 #define HF_MP_SHIFT 9 /* the order must be MP, EM, TS */
143 #define HF_EM_SHIFT 10
144 #define HF_TS_SHIFT 11
145 #define HF_IOPL_SHIFT 12 /* must be same as eflags */
146 #define HF_LMA_SHIFT 14 /* only used on x86_64: long mode active */
147 #define HF_CS64_SHIFT 15 /* only used on x86_64: 64 bit code segment */
148 #define HF_RF_SHIFT 16 /* must be same as eflags */
149 #define HF_VM_SHIFT 17 /* must be same as eflags */
150 #define HF_AC_SHIFT 18 /* must be same as eflags */
151 #define HF_SMM_SHIFT 19 /* CPU in SMM mode */
152 #define HF_SVME_SHIFT 20 /* SVME enabled (copy of EFER.SVME) */
153 #define HF_SVMI_SHIFT 21 /* SVM intercepts are active */
154 #define HF_OSFXSR_SHIFT 22 /* CR4.OSFXSR */
155 #define HF_SMAP_SHIFT 23 /* CR4.SMAP */
157 #define HF_CPL_MASK (3 << HF_CPL_SHIFT)
158 #define HF_SOFTMMU_MASK (1 << HF_SOFTMMU_SHIFT)
159 #define HF_INHIBIT_IRQ_MASK (1 << HF_INHIBIT_IRQ_SHIFT)
160 #define HF_CS32_MASK (1 << HF_CS32_SHIFT)
161 #define HF_SS32_MASK (1 << HF_SS32_SHIFT)
162 #define HF_ADDSEG_MASK (1 << HF_ADDSEG_SHIFT)
163 #define HF_PE_MASK (1 << HF_PE_SHIFT)
164 #define HF_TF_MASK (1 << HF_TF_SHIFT)
165 #define HF_MP_MASK (1 << HF_MP_SHIFT)
166 #define HF_EM_MASK (1 << HF_EM_SHIFT)
167 #define HF_TS_MASK (1 << HF_TS_SHIFT)
168 #define HF_IOPL_MASK (3 << HF_IOPL_SHIFT)
169 #define HF_LMA_MASK (1 << HF_LMA_SHIFT)
170 #define HF_CS64_MASK (1 << HF_CS64_SHIFT)
171 #define HF_RF_MASK (1 << HF_RF_SHIFT)
172 #define HF_VM_MASK (1 << HF_VM_SHIFT)
173 #define HF_AC_MASK (1 << HF_AC_SHIFT)
174 #define HF_SMM_MASK (1 << HF_SMM_SHIFT)
175 #define HF_SVME_MASK (1 << HF_SVME_SHIFT)
176 #define HF_SVMI_MASK (1 << HF_SVMI_SHIFT)
177 #define HF_OSFXSR_MASK (1 << HF_OSFXSR_SHIFT)
178 #define HF_SMAP_MASK (1 << HF_SMAP_SHIFT)
182 #define HF2_GIF_SHIFT 0 /* if set CPU takes interrupts */
183 #define HF2_HIF_SHIFT 1 /* value of IF_MASK when entering SVM */
184 #define HF2_NMI_SHIFT 2 /* CPU serving NMI */
185 #define HF2_VINTR_SHIFT 3 /* value of V_INTR_MASKING bit */
187 #define HF2_GIF_MASK (1 << HF2_GIF_SHIFT)
188 #define HF2_HIF_MASK (1 << HF2_HIF_SHIFT)
189 #define HF2_NMI_MASK (1 << HF2_NMI_SHIFT)
190 #define HF2_VINTR_MASK (1 << HF2_VINTR_SHIFT)
192 #define CR0_PE_SHIFT 0
193 #define CR0_MP_SHIFT 1
195 #define CR0_PE_MASK (1 << 0)
196 #define CR0_MP_MASK (1 << 1)
197 #define CR0_EM_MASK (1 << 2)
198 #define CR0_TS_MASK (1 << 3)
199 #define CR0_ET_MASK (1 << 4)
200 #define CR0_NE_MASK (1 << 5)
201 #define CR0_WP_MASK (1 << 16)
202 #define CR0_AM_MASK (1 << 18)
203 #define CR0_PG_MASK (1 << 31)
205 #define CR4_VME_MASK (1 << 0)
206 #define CR4_PVI_MASK (1 << 1)
207 #define CR4_TSD_MASK (1 << 2)
208 #define CR4_DE_MASK (1 << 3)
209 #define CR4_PSE_MASK (1 << 4)
210 #define CR4_PAE_MASK (1 << 5)
211 #define CR4_MCE_MASK (1 << 6)
212 #define CR4_PGE_MASK (1 << 7)
213 #define CR4_PCE_MASK (1 << 8)
214 #define CR4_OSFXSR_SHIFT 9
215 #define CR4_OSFXSR_MASK (1 << CR4_OSFXSR_SHIFT)
216 #define CR4_OSXMMEXCPT_MASK (1 << 10)
217 #define CR4_VMXE_MASK (1 << 13)
218 #define CR4_SMXE_MASK (1 << 14)
219 #define CR4_FSGSBASE_MASK (1 << 16)
220 #define CR4_PCIDE_MASK (1 << 17)
221 #define CR4_OSXSAVE_MASK (1 << 18)
222 #define CR4_SMEP_MASK (1 << 20)
223 #define CR4_SMAP_MASK (1 << 21)
225 #define DR6_BD (1 << 13)
226 #define DR6_BS (1 << 14)
227 #define DR6_BT (1 << 15)
228 #define DR6_FIXED_1 0xffff0ff0
230 #define DR7_GD (1 << 13)
231 #define DR7_TYPE_SHIFT 16
232 #define DR7_LEN_SHIFT 18
233 #define DR7_FIXED_1 0x00000400
235 #define PG_PRESENT_BIT 0
237 #define PG_USER_BIT 2
240 #define PG_ACCESSED_BIT 5
241 #define PG_DIRTY_BIT 6
243 #define PG_GLOBAL_BIT 8
246 #define PG_PRESENT_MASK (1 << PG_PRESENT_BIT)
247 #define PG_RW_MASK (1 << PG_RW_BIT)
248 #define PG_USER_MASK (1 << PG_USER_BIT)
249 #define PG_PWT_MASK (1 << PG_PWT_BIT)
250 #define PG_PCD_MASK (1 << PG_PCD_BIT)
251 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
252 #define PG_DIRTY_MASK (1 << PG_DIRTY_BIT)
253 #define PG_PSE_MASK (1 << PG_PSE_BIT)
254 #define PG_GLOBAL_MASK (1 << PG_GLOBAL_BIT)
255 #define PG_HI_USER_MASK 0x7ff0000000000000LL
256 #define PG_NX_MASK (1LL << PG_NX_BIT)
258 #define PG_ERROR_W_BIT 1
260 #define PG_ERROR_P_MASK 0x01
261 #define PG_ERROR_W_MASK (1 << PG_ERROR_W_BIT)
262 #define PG_ERROR_U_MASK 0x04
263 #define PG_ERROR_RSVD_MASK 0x08
264 #define PG_ERROR_I_D_MASK 0x10
266 #define MCG_CTL_P (1ULL<<8) /* MCG_CAP register available */
267 #define MCG_SER_P (1ULL<<24) /* MCA recovery/new status bits */
269 #define MCE_CAP_DEF (MCG_CTL_P|MCG_SER_P)
270 #define MCE_BANKS_DEF 10
272 #define MCG_STATUS_RIPV (1ULL<<0) /* restart ip valid */
273 #define MCG_STATUS_EIPV (1ULL<<1) /* ip points to correct instruction */
274 #define MCG_STATUS_MCIP (1ULL<<2) /* machine check in progress */
276 #define MCI_STATUS_VAL (1ULL<<63) /* valid error */
277 #define MCI_STATUS_OVER (1ULL<<62) /* previous errors lost */
278 #define MCI_STATUS_UC (1ULL<<61) /* uncorrected error */
279 #define MCI_STATUS_EN (1ULL<<60) /* error enabled */
280 #define MCI_STATUS_MISCV (1ULL<<59) /* misc error reg. valid */
281 #define MCI_STATUS_ADDRV (1ULL<<58) /* addr reg. valid */
282 #define MCI_STATUS_PCC (1ULL<<57) /* processor context corrupt */
283 #define MCI_STATUS_S (1ULL<<56) /* Signaled machine check */
284 #define MCI_STATUS_AR (1ULL<<55) /* Action required */
286 /* MISC register defines */
287 #define MCM_ADDR_SEGOFF 0 /* segment offset */
288 #define MCM_ADDR_LINEAR 1 /* linear address */
289 #define MCM_ADDR_PHYS 2 /* physical address */
290 #define MCM_ADDR_MEM 3 /* memory address */
291 #define MCM_ADDR_GENERIC 7 /* generic */
293 #define MSR_IA32_TSC 0x10
294 #define MSR_IA32_APICBASE 0x1b
295 #define MSR_IA32_APICBASE_BSP (1<<8)
296 #define MSR_IA32_APICBASE_ENABLE (1<<11)
297 #define MSR_IA32_APICBASE_BASE (0xfffff<<12)
298 #define MSR_IA32_TSCDEADLINE 0x6e0
300 #define MSR_MTRRcap 0xfe
301 #define MSR_MTRRcap_VCNT 8
302 #define MSR_MTRRcap_FIXRANGE_SUPPORT (1 << 8)
303 #define MSR_MTRRcap_WC_SUPPORTED (1 << 10)
305 #define MSR_IA32_SYSENTER_CS 0x174
306 #define MSR_IA32_SYSENTER_ESP 0x175
307 #define MSR_IA32_SYSENTER_EIP 0x176
309 #define MSR_MCG_CAP 0x179
310 #define MSR_MCG_STATUS 0x17a
311 #define MSR_MCG_CTL 0x17b
313 #define MSR_IA32_PERF_STATUS 0x198
315 #define MSR_IA32_MISC_ENABLE 0x1a0
316 /* Indicates good rep/movs microcode on some processors: */
317 #define MSR_IA32_MISC_ENABLE_DEFAULT 1
319 #define MSR_MTRRphysBase(reg) (0x200 + 2 * (reg))
320 #define MSR_MTRRphysMask(reg) (0x200 + 2 * (reg) + 1)
322 #define MSR_MTRRfix64K_00000 0x250
323 #define MSR_MTRRfix16K_80000 0x258
324 #define MSR_MTRRfix16K_A0000 0x259
325 #define MSR_MTRRfix4K_C0000 0x268
326 #define MSR_MTRRfix4K_C8000 0x269
327 #define MSR_MTRRfix4K_D0000 0x26a
328 #define MSR_MTRRfix4K_D8000 0x26b
329 #define MSR_MTRRfix4K_E0000 0x26c
330 #define MSR_MTRRfix4K_E8000 0x26d
331 #define MSR_MTRRfix4K_F0000 0x26e
332 #define MSR_MTRRfix4K_F8000 0x26f
334 #define MSR_PAT 0x277
336 #define MSR_MTRRdefType 0x2ff
338 #define MSR_MC0_CTL 0x400
339 #define MSR_MC0_STATUS 0x401
340 #define MSR_MC0_ADDR 0x402
341 #define MSR_MC0_MISC 0x403
343 #define MSR_EFER 0xc0000080
345 #define MSR_EFER_SCE (1 << 0)
346 #define MSR_EFER_LME (1 << 8)
347 #define MSR_EFER_LMA (1 << 10)
348 #define MSR_EFER_NXE (1 << 11)
349 #define MSR_EFER_SVME (1 << 12)
350 #define MSR_EFER_FFXSR (1 << 14)
352 #define MSR_STAR 0xc0000081
353 #define MSR_LSTAR 0xc0000082
354 #define MSR_CSTAR 0xc0000083
355 #define MSR_FMASK 0xc0000084
356 #define MSR_FSBASE 0xc0000100
357 #define MSR_GSBASE 0xc0000101
358 #define MSR_KERNELGSBASE 0xc0000102
359 #define MSR_TSC_AUX 0xc0000103
361 #define MSR_VM_HSAVE_PA 0xc0010117
363 /* cpuid_features bits */
364 #define CPUID_FP87 (1 << 0)
365 #define CPUID_VME (1 << 1)
366 #define CPUID_DE (1 << 2)
367 #define CPUID_PSE (1 << 3)
368 #define CPUID_TSC (1 << 4)
369 #define CPUID_MSR (1 << 5)
370 #define CPUID_PAE (1 << 6)
371 #define CPUID_MCE (1 << 7)
372 #define CPUID_CX8 (1 << 8)
373 #define CPUID_APIC (1 << 9)
374 #define CPUID_SEP (1 << 11) /* sysenter/sysexit */
375 #define CPUID_MTRR (1 << 12)
376 #define CPUID_PGE (1 << 13)
377 #define CPUID_MCA (1 << 14)
378 #define CPUID_CMOV (1 << 15)
379 #define CPUID_PAT (1 << 16)
380 #define CPUID_PSE36 (1 << 17)
381 #define CPUID_PN (1 << 18)
382 #define CPUID_CLFLUSH (1 << 19)
383 #define CPUID_DTS (1 << 21)
384 #define CPUID_ACPI (1 << 22)
385 #define CPUID_MMX (1 << 23)
386 #define CPUID_FXSR (1 << 24)
387 #define CPUID_SSE (1 << 25)
388 #define CPUID_SSE2 (1 << 26)
389 #define CPUID_SS (1 << 27)
390 #define CPUID_HT (1 << 28)
391 #define CPUID_TM (1 << 29)
392 #define CPUID_IA64 (1 << 30)
393 #define CPUID_PBE (1 << 31)
395 #define CPUID_EXT_SSE3 (1 << 0)
396 #define CPUID_EXT_PCLMULQDQ (1 << 1)
397 #define CPUID_EXT_DTES64 (1 << 2)
398 #define CPUID_EXT_MONITOR (1 << 3)
399 #define CPUID_EXT_DSCPL (1 << 4)
400 #define CPUID_EXT_VMX (1 << 5)
401 #define CPUID_EXT_SMX (1 << 6)
402 #define CPUID_EXT_EST (1 << 7)
403 #define CPUID_EXT_TM2 (1 << 8)
404 #define CPUID_EXT_SSSE3 (1 << 9)
405 #define CPUID_EXT_CID (1 << 10)
406 #define CPUID_EXT_FMA (1 << 12)
407 #define CPUID_EXT_CX16 (1 << 13)
408 #define CPUID_EXT_XTPR (1 << 14)
409 #define CPUID_EXT_PDCM (1 << 15)
410 #define CPUID_EXT_PCID (1 << 17)
411 #define CPUID_EXT_DCA (1 << 18)
412 #define CPUID_EXT_SSE41 (1 << 19)
413 #define CPUID_EXT_SSE42 (1 << 20)
414 #define CPUID_EXT_X2APIC (1 << 21)
415 #define CPUID_EXT_MOVBE (1 << 22)
416 #define CPUID_EXT_POPCNT (1 << 23)
417 #define CPUID_EXT_TSC_DEADLINE_TIMER (1 << 24)
418 #define CPUID_EXT_AES (1 << 25)
419 #define CPUID_EXT_XSAVE (1 << 26)
420 #define CPUID_EXT_OSXSAVE (1 << 27)
421 #define CPUID_EXT_AVX (1 << 28)
422 #define CPUID_EXT_F16C (1 << 29)
423 #define CPUID_EXT_RDRAND (1 << 30)
424 #define CPUID_EXT_HYPERVISOR (1 << 31)
426 #define CPUID_EXT2_FPU (1 << 0)
427 #define CPUID_EXT2_VME (1 << 1)
428 #define CPUID_EXT2_DE (1 << 2)
429 #define CPUID_EXT2_PSE (1 << 3)
430 #define CPUID_EXT2_TSC (1 << 4)
431 #define CPUID_EXT2_MSR (1 << 5)
432 #define CPUID_EXT2_PAE (1 << 6)
433 #define CPUID_EXT2_MCE (1 << 7)
434 #define CPUID_EXT2_CX8 (1 << 8)
435 #define CPUID_EXT2_APIC (1 << 9)
436 #define CPUID_EXT2_SYSCALL (1 << 11)
437 #define CPUID_EXT2_MTRR (1 << 12)
438 #define CPUID_EXT2_PGE (1 << 13)
439 #define CPUID_EXT2_MCA (1 << 14)
440 #define CPUID_EXT2_CMOV (1 << 15)
441 #define CPUID_EXT2_PAT (1 << 16)
442 #define CPUID_EXT2_PSE36 (1 << 17)
443 #define CPUID_EXT2_MP (1 << 19)
444 #define CPUID_EXT2_NX (1 << 20)
445 #define CPUID_EXT2_MMXEXT (1 << 22)
446 #define CPUID_EXT2_MMX (1 << 23)
447 #define CPUID_EXT2_FXSR (1 << 24)
448 #define CPUID_EXT2_FFXSR (1 << 25)
449 #define CPUID_EXT2_PDPE1GB (1 << 26)
450 #define CPUID_EXT2_RDTSCP (1 << 27)
451 #define CPUID_EXT2_LM (1 << 29)
452 #define CPUID_EXT2_3DNOWEXT (1 << 30)
453 #define CPUID_EXT2_3DNOW (1 << 31)
455 /* CPUID[8000_0001].EDX bits that are aliase of CPUID[1].EDX bits on AMD CPUs */
456 #define CPUID_EXT2_AMD_ALIASES (CPUID_EXT2_FPU | CPUID_EXT2_VME | \
457 CPUID_EXT2_DE | CPUID_EXT2_PSE | \
458 CPUID_EXT2_TSC | CPUID_EXT2_MSR | \
459 CPUID_EXT2_PAE | CPUID_EXT2_MCE | \
460 CPUID_EXT2_CX8 | CPUID_EXT2_APIC | \
461 CPUID_EXT2_MTRR | CPUID_EXT2_PGE | \
462 CPUID_EXT2_MCA | CPUID_EXT2_CMOV | \
463 CPUID_EXT2_PAT | CPUID_EXT2_PSE36 | \
464 CPUID_EXT2_MMX | CPUID_EXT2_FXSR)
466 #define CPUID_EXT3_LAHF_LM (1 << 0)
467 #define CPUID_EXT3_CMP_LEG (1 << 1)
468 #define CPUID_EXT3_SVM (1 << 2)
469 #define CPUID_EXT3_EXTAPIC (1 << 3)
470 #define CPUID_EXT3_CR8LEG (1 << 4)
471 #define CPUID_EXT3_ABM (1 << 5)
472 #define CPUID_EXT3_SSE4A (1 << 6)
473 #define CPUID_EXT3_MISALIGNSSE (1 << 7)
474 #define CPUID_EXT3_3DNOWPREFETCH (1 << 8)
475 #define CPUID_EXT3_OSVW (1 << 9)
476 #define CPUID_EXT3_IBS (1 << 10)
477 #define CPUID_EXT3_XOP (1 << 11)
478 #define CPUID_EXT3_SKINIT (1 << 12)
479 #define CPUID_EXT3_WDT (1 << 13)
480 #define CPUID_EXT3_LWP (1 << 15)
481 #define CPUID_EXT3_FMA4 (1 << 16)
482 #define CPUID_EXT3_TCE (1 << 17)
483 #define CPUID_EXT3_NODEID (1 << 19)
484 #define CPUID_EXT3_TBM (1 << 21)
485 #define CPUID_EXT3_TOPOEXT (1 << 22)
486 #define CPUID_EXT3_PERFCORE (1 << 23)
487 #define CPUID_EXT3_PERFNB (1 << 24)
489 #define CPUID_SVM_NPT (1 << 0)
490 #define CPUID_SVM_LBRV (1 << 1)
491 #define CPUID_SVM_SVMLOCK (1 << 2)
492 #define CPUID_SVM_NRIPSAVE (1 << 3)
493 #define CPUID_SVM_TSCSCALE (1 << 4)
494 #define CPUID_SVM_VMCBCLEAN (1 << 5)
495 #define CPUID_SVM_FLUSHASID (1 << 6)
496 #define CPUID_SVM_DECODEASSIST (1 << 7)
497 #define CPUID_SVM_PAUSEFILTER (1 << 10)
498 #define CPUID_SVM_PFTHRESHOLD (1 << 12)
500 #define CPUID_7_0_EBX_FSGSBASE (1 << 0)
501 #define CPUID_7_0_EBX_BMI1 (1 << 3)
502 #define CPUID_7_0_EBX_HLE (1 << 4)
503 #define CPUID_7_0_EBX_AVX2 (1 << 5)
504 #define CPUID_7_0_EBX_SMEP (1 << 7)
505 #define CPUID_7_0_EBX_BMI2 (1 << 8)
506 #define CPUID_7_0_EBX_ERMS (1 << 9)
507 #define CPUID_7_0_EBX_INVPCID (1 << 10)
508 #define CPUID_7_0_EBX_RTM (1 << 11)
509 #define CPUID_7_0_EBX_RDSEED (1 << 18)
510 #define CPUID_7_0_EBX_ADX (1 << 19)
511 #define CPUID_7_0_EBX_SMAP (1 << 20)
513 #define CPUID_VENDOR_SZ 12
515 #define CPUID_VENDOR_INTEL_1 0x756e6547 /* "Genu" */
516 #define CPUID_VENDOR_INTEL_2 0x49656e69 /* "ineI" */
517 #define CPUID_VENDOR_INTEL_3 0x6c65746e /* "ntel" */
519 #define CPUID_VENDOR_AMD_1 0x68747541 /* "Auth" */
520 #define CPUID_VENDOR_AMD_2 0x69746e65 /* "enti" */
521 #define CPUID_VENDOR_AMD_3 0x444d4163 /* "cAMD" */
523 #define CPUID_VENDOR_VIA_1 0x746e6543 /* "Cent" */
524 #define CPUID_VENDOR_VIA_2 0x48727561 /* "aurH" */
525 #define CPUID_VENDOR_VIA_3 0x736c7561 /* "auls" */
527 #define CPUID_MWAIT_IBE (1 << 1) /* Interrupts can exit capability */
528 #define CPUID_MWAIT_EMX (1 << 0) /* enumeration supported */
530 #define EXCP00_DIVZ 0
533 #define EXCP03_INT3 3
534 #define EXCP04_INTO 4
535 #define EXCP05_BOUND 5
536 #define EXCP06_ILLOP 6
537 #define EXCP07_PREX 7
538 #define EXCP08_DBLE 8
539 #define EXCP09_XERR 9
540 #define EXCP0A_TSS 10
541 #define EXCP0B_NOSEG 11
542 #define EXCP0C_STACK 12
543 #define EXCP0D_GPF 13
544 #define EXCP0E_PAGE 14
545 #define EXCP10_COPR 16
546 #define EXCP11_ALGN 17
547 #define EXCP12_MCHK 18
549 #define EXCP_SYSCALL 0x100 /* only happens in user only emulation
550 for syscall instruction */
552 /* i386-specific interrupt pending bits. */
553 #define CPU_INTERRUPT_POLL CPU_INTERRUPT_TGT_EXT_1
554 #define CPU_INTERRUPT_SMI CPU_INTERRUPT_TGT_EXT_2
555 #define CPU_INTERRUPT_NMI CPU_INTERRUPT_TGT_EXT_3
556 #define CPU_INTERRUPT_MCE CPU_INTERRUPT_TGT_EXT_4
557 #define CPU_INTERRUPT_VIRQ CPU_INTERRUPT_TGT_INT_0
558 #define CPU_INTERRUPT_INIT CPU_INTERRUPT_TGT_INT_1
559 #define CPU_INTERRUPT_SIPI CPU_INTERRUPT_TGT_INT_2
560 #define CPU_INTERRUPT_TPR CPU_INTERRUPT_TGT_INT_3
564 CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
565 CC_OP_EFLAGS, /* all cc are explicitly computed, CC_SRC = flags */
567 CC_OP_MULB, /* modify all flags, C, O = (CC_SRC != 0) */
572 CC_OP_ADDB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
577 CC_OP_ADCB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
582 CC_OP_SUBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
587 CC_OP_SBBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
592 CC_OP_LOGICB, /* modify all flags, CC_DST = res */
597 CC_OP_INCB, /* modify all flags except, CC_DST = res, CC_SRC = C */
602 CC_OP_DECB, /* modify all flags except, CC_DST = res, CC_SRC = C */
607 CC_OP_SHLB, /* modify all flags, CC_DST = res, CC_SRC.msb = C */
612 CC_OP_SARB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */
620 typedef struct SegmentCache {
644 #ifdef HOST_WORDS_BIGENDIAN
645 #define XMM_B(n) _b[15 - (n)]
646 #define XMM_W(n) _w[7 - (n)]
647 #define XMM_L(n) _l[3 - (n)]
648 #define XMM_S(n) _s[3 - (n)]
649 #define XMM_Q(n) _q[1 - (n)]
650 #define XMM_D(n) _d[1 - (n)]
652 #define MMX_B(n) _b[7 - (n)]
653 #define MMX_W(n) _w[3 - (n)]
654 #define MMX_L(n) _l[1 - (n)]
655 #define MMX_S(n) _s[1 - (n)]
657 #define XMM_B(n) _b[n]
658 #define XMM_W(n) _w[n]
659 #define XMM_L(n) _l[n]
660 #define XMM_S(n) _s[n]
661 #define XMM_Q(n) _q[n]
662 #define XMM_D(n) _d[n]
664 #define MMX_B(n) _b[n]
665 #define MMX_W(n) _w[n]
666 #define MMX_L(n) _l[n]
667 #define MMX_S(n) _s[n]
672 floatx80 d __attribute__((aligned(16)));
681 #define CPU_NB_REGS64 16
682 #define CPU_NB_REGS32 8
685 #define CPU_NB_REGS CPU_NB_REGS64
687 #define CPU_NB_REGS CPU_NB_REGS32
690 #define NB_MMU_MODES 3
692 typedef enum TPRAccess {
697 typedef struct CPUX86State {
698 /* standard registers */
699 target_ulong regs[CPU_NB_REGS];
701 target_ulong eflags; /* eflags register. During CPU emulation, CC
702 flags and DF are set to zero because they are
705 /* emulator internal eflags handling */
709 int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */
710 uint32_t hflags; /* TB flags, see HF_xxx constants. These flags
711 are known at translation time. */
712 uint32_t hflags2; /* various other flags, see HF2_xxx constants. */
715 SegmentCache segs[6]; /* selector values */
718 SegmentCache gdt; /* only base and limit are used */
719 SegmentCache idt; /* only base and limit are used */
721 target_ulong cr[5]; /* NOTE: cr1 is unused */
725 unsigned int fpstt; /* top of stack index */
728 uint8_t fptags[8]; /* 0 = valid, 1 = empty */
730 /* KVM-only so far */
735 /* emulator internal variables */
736 float_status fp_status;
739 float_status mmx_status; /* for 3DNow! float ops */
740 float_status sse_status;
742 XMMReg xmm_regs[CPU_NB_REGS];
745 target_ulong cc_tmp; /* temporary for rcr/rcl */
747 /* sysenter registers */
748 uint32_t sysenter_cs;
749 target_ulong sysenter_esp;
750 target_ulong sysenter_eip;
758 uint16_t intercept_cr_read;
759 uint16_t intercept_cr_write;
760 uint16_t intercept_dr_read;
761 uint16_t intercept_dr_write;
762 uint32_t intercept_exceptions;
769 target_ulong kernelgsbase;
771 uint64_t system_time_msr;
772 uint64_t wall_clock_msr;
773 uint64_t async_pf_en_msr;
774 uint64_t pv_eoi_en_msr;
777 uint64_t tsc_deadline;
780 uint64_t msr_ia32_misc_enable;
782 /* exception/interrupt handling */
784 int exception_is_int;
785 target_ulong exception_next_eip;
786 target_ulong dr[8]; /* debug registers */
788 CPUBreakpoint *cpu_breakpoint[4];
789 CPUWatchpoint *cpu_watchpoint[4];
790 }; /* break/watchpoints for dr[0..3] */
792 int old_exception; /* exception in flight */
794 /* KVM states, automatically cleared on reset */
795 uint8_t nmi_injected;
802 /* processor features (e.g. for CPUID insn) */
803 uint32_t cpuid_level;
804 uint32_t cpuid_vendor1;
805 uint32_t cpuid_vendor2;
806 uint32_t cpuid_vendor3;
807 uint32_t cpuid_version;
808 uint32_t cpuid_features;
809 uint32_t cpuid_ext_features;
810 uint32_t cpuid_xlevel;
811 uint32_t cpuid_model[12];
812 uint32_t cpuid_ext2_features;
813 uint32_t cpuid_ext3_features;
814 uint32_t cpuid_apic_id;
815 int cpuid_vendor_override;
816 /* Store the results of Centaur's CPUID instructions */
817 uint32_t cpuid_xlevel2;
818 uint32_t cpuid_ext4_features;
819 /* Flags from CPUID[EAX=7,ECX=0].EBX */
820 uint32_t cpuid_7_0_ebx_features;
823 uint64_t mtrr_fixed[11];
824 uint64_t mtrr_deftype;
829 int32_t exception_injected;
830 int32_t interrupt_injected;
831 uint8_t soft_interrupt;
832 uint8_t has_error_code;
833 uint32_t sipi_vector;
834 uint32_t cpuid_kvm_features;
835 uint32_t cpuid_svm_features;
840 /* in order to simplify APIC support, we leave this pointer to the
842 struct DeviceState *apic_state;
846 uint64_t mce_banks[MCE_BANKS_DEF*4];
851 uint16_t fpus_vmstate;
852 uint16_t fptag_vmstate;
853 uint16_t fpregs_format_vmstate;
856 XMMReg ymmh_regs[CPU_NB_REGS];
860 TPRAccess tpr_access_type;
865 X86CPU *cpu_x86_init(const char *cpu_model);
866 int cpu_x86_exec(CPUX86State *s);
867 void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf);
868 void x86_cpudef_setup(void);
869 int cpu_x86_support_mca_broadcast(CPUX86State *env);
871 int cpu_get_pic_interrupt(CPUX86State *s);
872 /* MSDOS compatibility mode FPU exception support */
873 void cpu_set_ferr(CPUX86State *s);
875 /* this function must always be used to load data in the segment
876 cache: it synchronizes the hflags with the segment cache values */
877 static inline void cpu_x86_load_seg_cache(CPUX86State *env,
878 int seg_reg, unsigned int selector,
884 unsigned int new_hflags;
886 sc = &env->segs[seg_reg];
887 sc->selector = selector;
892 /* update the hidden flags */
894 if (seg_reg == R_CS) {
896 if ((env->hflags & HF_LMA_MASK) && (flags & DESC_L_MASK)) {
898 env->hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK;
899 env->hflags &= ~(HF_ADDSEG_MASK);
903 /* legacy / compatibility case */
904 new_hflags = (env->segs[R_CS].flags & DESC_B_MASK)
905 >> (DESC_B_SHIFT - HF_CS32_SHIFT);
906 env->hflags = (env->hflags & ~(HF_CS32_MASK | HF_CS64_MASK)) |
910 new_hflags = (env->segs[R_SS].flags & DESC_B_MASK)
911 >> (DESC_B_SHIFT - HF_SS32_SHIFT);
912 if (env->hflags & HF_CS64_MASK) {
913 /* zero base assumed for DS, ES and SS in long mode */
914 } else if (!(env->cr[0] & CR0_PE_MASK) ||
915 (env->eflags & VM_MASK) ||
916 !(env->hflags & HF_CS32_MASK)) {
917 /* XXX: try to avoid this test. The problem comes from the
918 fact that is real mode or vm86 mode we only modify the
919 'base' and 'selector' fields of the segment cache to go
920 faster. A solution may be to force addseg to one in
922 new_hflags |= HF_ADDSEG_MASK;
924 new_hflags |= ((env->segs[R_DS].base |
925 env->segs[R_ES].base |
926 env->segs[R_SS].base) != 0) <<
929 env->hflags = (env->hflags &
930 ~(HF_SS32_MASK | HF_ADDSEG_MASK)) | new_hflags;
934 static inline void cpu_x86_load_seg_cache_sipi(X86CPU *cpu,
937 CPUX86State *env = &cpu->env;
940 cpu_x86_load_seg_cache(env, R_CS, sipi_vector << 8,
942 env->segs[R_CS].limit,
943 env->segs[R_CS].flags);
947 int cpu_x86_get_descr_debug(CPUX86State *env, unsigned int selector,
948 target_ulong *base, unsigned int *limit,
949 unsigned int *flags);
951 /* wrapper, just in case memory mappings must be changed */
952 static inline void cpu_x86_set_cpl(CPUX86State *s, int cpl)
955 s->hflags = (s->hflags & ~HF_CPL_MASK) | cpl;
957 #error HF_CPL_MASK is hardcoded
962 /* used for debug or cpu save/restore */
963 void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, floatx80 f);
964 floatx80 cpu_set_fp80(uint64_t mant, uint16_t upper);
967 /* the following helpers are only usable in user mode simulation as
968 they can trigger unexpected exceptions */
969 void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector);
970 void cpu_x86_fsave(CPUX86State *s, target_ulong ptr, int data32);
971 void cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32);
973 /* you can call this signal handler from your SIGBUS and SIGSEGV
974 signal handlers to inform the virtual CPU of exceptions. non zero
975 is returned if the signal was handled by the virtual CPU. */
976 int cpu_x86_signal_handler(int host_signum, void *pinfo,
980 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
981 uint32_t *eax, uint32_t *ebx,
982 uint32_t *ecx, uint32_t *edx);
983 int cpu_x86_register(X86CPU *cpu, const char *cpu_model);
984 void cpu_clear_apic_feature(CPUX86State *env);
985 void host_cpuid(uint32_t function, uint32_t count,
986 uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
989 int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
990 int is_write, int mmu_idx);
991 #define cpu_handle_mmu_fault cpu_x86_handle_mmu_fault
992 void cpu_x86_set_a20(CPUX86State *env, int a20_state);
994 static inline int hw_breakpoint_enabled(unsigned long dr7, int index)
996 return (dr7 >> (index * 2)) & 3;
999 static inline int hw_breakpoint_type(unsigned long dr7, int index)
1001 return (dr7 >> (DR7_TYPE_SHIFT + (index * 4))) & 3;
1004 static inline int hw_breakpoint_len(unsigned long dr7, int index)
1006 int len = ((dr7 >> (DR7_LEN_SHIFT + (index * 4))) & 3);
1007 return (len == 2) ? 8 : len + 1;
1010 void hw_breakpoint_insert(CPUX86State *env, int index);
1011 void hw_breakpoint_remove(CPUX86State *env, int index);
1012 int check_hw_breakpoints(CPUX86State *env, int force_dr6_update);
1013 void breakpoint_handler(CPUX86State *env);
1015 /* will be suppressed */
1016 void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0);
1017 void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3);
1018 void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4);
1021 void cpu_smm_update(CPUX86State *env);
1022 uint64_t cpu_get_tsc(CPUX86State *env);
1024 #define TARGET_PAGE_BITS 12
1026 #ifdef TARGET_X86_64
1027 #define TARGET_PHYS_ADDR_SPACE_BITS 52
1028 /* ??? This is really 48 bits, sign-extended, but the only thing
1029 accessible to userland with bit 48 set is the VSYSCALL, and that
1030 is handled via other mechanisms. */
1031 #define TARGET_VIRT_ADDR_SPACE_BITS 47
1033 #define TARGET_PHYS_ADDR_SPACE_BITS 36
1034 #define TARGET_VIRT_ADDR_SPACE_BITS 32
1037 static inline CPUX86State *cpu_init(const char *cpu_model)
1039 X86CPU *cpu = cpu_x86_init(cpu_model);
1046 #define cpu_exec cpu_x86_exec
1047 #define cpu_gen_code cpu_x86_gen_code
1048 #define cpu_signal_handler cpu_x86_signal_handler
1049 #define cpu_list x86_cpu_list
1050 #define cpudef_setup x86_cpudef_setup
1052 #define CPU_SAVE_VERSION 12
1054 /* MMU modes definitions */
1055 #define MMU_MODE0_SUFFIX _kernel
1056 #define MMU_MODE1_SUFFIX _user
1057 #define MMU_MODE2_SUFFIX _ksmap /* Kernel with SMAP override */
1058 #define MMU_KERNEL_IDX 0
1059 #define MMU_USER_IDX 1
1060 #define MMU_KSMAP_IDX 2
1061 static inline int cpu_mmu_index (CPUX86State *env)
1063 return (env->hflags & HF_CPL_MASK) == 3 ? MMU_USER_IDX :
1064 ((env->hflags & HF_SMAP_MASK) && (env->eflags & AC_MASK))
1065 ? MMU_KSMAP_IDX : MMU_KERNEL_IDX;
1069 #define EAX (env->regs[R_EAX])
1071 #define ECX (env->regs[R_ECX])
1073 #define EDX (env->regs[R_EDX])
1075 #define EBX (env->regs[R_EBX])
1077 #define ESP (env->regs[R_ESP])
1079 #define EBP (env->regs[R_EBP])
1081 #define ESI (env->regs[R_ESI])
1083 #define EDI (env->regs[R_EDI])
1085 #define EIP (env->eip)
1086 #define DF (env->df)
1088 #define CC_SRC (env->cc_src)
1089 #define CC_DST (env->cc_dst)
1090 #define CC_OP (env->cc_op)
1092 /* n must be a constant to be efficient */
1093 static inline target_long lshift(target_long x, int n)
1103 #define FT0 (env->ft0)
1104 #define ST0 (env->fpregs[env->fpstt].d)
1105 #define ST(n) (env->fpregs[(env->fpstt + (n)) & 7].d)
1109 void optimize_flags_init(void);
1111 #if defined(CONFIG_USER_ONLY)
1112 static inline void cpu_clone_regs(CPUX86State *env, target_ulong newsp)
1115 env->regs[R_ESP] = newsp;
1116 env->regs[R_EAX] = 0;
1120 #include "exec/cpu-all.h"
1123 #if !defined(CONFIG_USER_ONLY)
1124 #include "hw/apic.h"
1127 static inline bool cpu_has_work(CPUState *cpu)
1129 CPUX86State *env = &X86_CPU(cpu)->env;
1131 return ((env->interrupt_request & (CPU_INTERRUPT_HARD |
1132 CPU_INTERRUPT_POLL)) &&
1133 (env->eflags & IF_MASK)) ||
1134 (env->interrupt_request & (CPU_INTERRUPT_NMI |
1135 CPU_INTERRUPT_INIT |
1136 CPU_INTERRUPT_SIPI |
1137 CPU_INTERRUPT_MCE));
1140 #include "exec/exec-all.h"
1142 static inline void cpu_pc_from_tb(CPUX86State *env, TranslationBlock *tb)
1144 env->eip = tb->pc - tb->cs_base;
1147 static inline void cpu_get_tb_cpu_state(CPUX86State *env, target_ulong *pc,
1148 target_ulong *cs_base, int *flags)
1150 *cs_base = env->segs[R_CS].base;
1151 *pc = *cs_base + env->eip;
1152 *flags = env->hflags |
1153 (env->eflags & (IOPL_MASK | TF_MASK | RF_MASK | VM_MASK | AC_MASK));
1156 void do_cpu_init(X86CPU *cpu);
1157 void do_cpu_sipi(X86CPU *cpu);
1159 #define MCE_INJECT_BROADCAST 1
1160 #define MCE_INJECT_UNCOND_AO 2
1162 void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank,
1163 uint64_t status, uint64_t mcg_status, uint64_t addr,
1164 uint64_t misc, int flags);
1167 void QEMU_NORETURN raise_exception(CPUX86State *env, int exception_index);
1168 void QEMU_NORETURN raise_exception_err(CPUX86State *env, int exception_index,
1170 void QEMU_NORETURN raise_interrupt(CPUX86State *nenv, int intno, int is_int,
1171 int error_code, int next_eip_addend);
1174 extern const uint8_t parity_table[256];
1175 uint32_t cpu_cc_compute_all(CPUX86State *env1, int op);
1177 static inline uint32_t cpu_compute_eflags(CPUX86State *env)
1179 return env->eflags | cpu_cc_compute_all(env, CC_OP) | (DF & DF_MASK);
1182 /* NOTE: CC_OP must be modified manually to CC_OP_EFLAGS */
1183 static inline void cpu_load_eflags(CPUX86State *env, int eflags,
1186 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1187 DF = 1 - (2 * ((eflags >> 10) & 1));
1188 env->eflags = (env->eflags & ~update_mask) |
1189 (eflags & update_mask) | 0x2;
1192 /* load efer and update the corresponding hflags. XXX: do consistency
1193 checks with cpuid bits? */
1194 static inline void cpu_load_efer(CPUX86State *env, uint64_t val)
1197 env->hflags &= ~(HF_LMA_MASK | HF_SVME_MASK);
1198 if (env->efer & MSR_EFER_LMA) {
1199 env->hflags |= HF_LMA_MASK;
1201 if (env->efer & MSR_EFER_SVME) {
1202 env->hflags |= HF_SVME_MASK;
1207 void cpu_svm_check_intercept_param(CPUX86State *env1, uint32_t type,
1209 void cpu_vmexit(CPUX86State *nenv, uint32_t exit_code, uint64_t exit_info_1);
1212 void do_interrupt(CPUX86State *env);
1213 void do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw);
1215 void do_smm_enter(CPUX86State *env1);
1217 void cpu_report_tpr_access(CPUX86State *env, TPRAccess access);
1219 void enable_kvm_pv_eoi(void);
1221 #endif /* CPU_I386_H */