| 1 | /*
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| 2 | * i386 virtual CPU header
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| 3 | *
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| 4 | * Copyright (c) 2003 Fabrice Bellard
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| 5 | *
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| 6 | * This library is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the GNU Lesser General Public
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| 8 | * License as published by the Free Software Foundation; either
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| 9 | * version 2 of the License, or (at your option) any later version.
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| 10 | *
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| 11 | * This library is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 14 | * Lesser General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU Lesser General Public
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| 17 | * License along with this library; if not, write to the Free Software
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| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 19 | */
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| 20 |
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| 21 | /*
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| 22 | * Sun LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
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| 23 | * other than GPL or LGPL is available it will apply instead, Sun elects to use only
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| 24 | * the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
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| 25 | * a choice of LGPL license versions is made available with the language indicating
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| 26 | * that LGPLv2 or any later version may be used, or where a choice of which version
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| 27 | * of the LGPL is applied is otherwise unspecified.
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| 28 | */
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| 29 | #ifndef CPU_I386_H
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| 30 | #define CPU_I386_H
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| 31 |
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| 32 | #include "config.h"
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| 33 |
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| 34 | #ifdef TARGET_X86_64
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| 35 | #define TARGET_LONG_BITS 64
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| 36 | #else
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| 37 | #define TARGET_LONG_BITS 32
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| 38 | #endif
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| 39 |
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| 40 | /* target supports implicit self modifying code */
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| 41 | #define TARGET_HAS_SMC
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| 42 | /* support for self modifying code even if the modified instruction is
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| 43 | close to the modifying instruction */
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| 44 | #define TARGET_HAS_PRECISE_SMC
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| 45 |
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| 46 | #define TARGET_HAS_ICE 1
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| 47 |
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| 48 | #ifdef TARGET_X86_64
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| 49 | #define ELF_MACHINE EM_X86_64
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| 50 | #else
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| 51 | #define ELF_MACHINE EM_386
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| 52 | #endif
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| 53 |
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| 54 | #include "cpu-defs.h"
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| 55 |
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| 56 | #include "softfloat.h"
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| 57 |
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| 58 | #if defined(VBOX)
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| 59 | # include <iprt/critsect.h>
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| 60 | # include <iprt/thread.h>
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| 61 | # include <iprt/assert.h>
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| 62 | # include <iprt/asm.h>
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| 63 | # include <VBox/vmm.h>
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| 64 | #endif /* VBOX */
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| 65 |
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| 66 | #define R_EAX 0
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| 67 | #define R_ECX 1
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| 68 | #define R_EDX 2
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| 69 | #define R_EBX 3
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| 70 | #define R_ESP 4
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| 71 | #define R_EBP 5
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| 72 | #define R_ESI 6
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| 73 | #define R_EDI 7
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| 74 |
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| 75 | #define R_AL 0
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| 76 | #define R_CL 1
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| 77 | #define R_DL 2
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| 78 | #define R_BL 3
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| 79 | #define R_AH 4
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| 80 | #define R_CH 5
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| 81 | #define R_DH 6
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| 82 | #define R_BH 7
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| 83 |
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| 84 | #define R_ES 0
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| 85 | #define R_CS 1
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| 86 | #define R_SS 2
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| 87 | #define R_DS 3
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| 88 | #define R_FS 4
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| 89 | #define R_GS 5
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| 90 |
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| 91 | /* segment descriptor fields */
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| 92 | #define DESC_G_MASK (1 << 23)
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| 93 | #define DESC_B_SHIFT 22
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| 94 | #define DESC_B_MASK (1 << DESC_B_SHIFT)
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| 95 | #define DESC_L_SHIFT 21 /* x86_64 only : 64 bit code segment */
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| 96 | #define DESC_L_MASK (1 << DESC_L_SHIFT)
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| 97 | #define DESC_AVL_MASK (1 << 20)
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| 98 | #define DESC_P_MASK (1 << 15)
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| 99 | #define DESC_DPL_SHIFT 13
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| 100 | #define DESC_S_MASK (1 << 12)
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| 101 | #define DESC_TYPE_SHIFT 8
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| 102 | #define DESC_A_MASK (1 << 8)
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| 103 |
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| 104 | #define DESC_CS_MASK (1 << 11) /* 1=code segment 0=data segment */
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| 105 | #define DESC_C_MASK (1 << 10) /* code: conforming */
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| 106 | #define DESC_R_MASK (1 << 9) /* code: readable */
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| 107 |
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| 108 | #define DESC_E_MASK (1 << 10) /* data: expansion direction */
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| 109 | #define DESC_W_MASK (1 << 9) /* data: writable */
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| 110 |
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| 111 | #define DESC_TSS_BUSY_MASK (1 << 9)
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| 112 |
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| 113 | /* eflags masks */
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| 114 | #define CC_C 0x0001
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| 115 | #define CC_P 0x0004
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| 116 | #define CC_A 0x0010
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| 117 | #define CC_Z 0x0040
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| 118 | #define CC_S 0x0080
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| 119 | #define CC_O 0x0800
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| 120 |
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| 121 | #define TF_SHIFT 8
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| 122 | #define IOPL_SHIFT 12
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| 123 | #define VM_SHIFT 17
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| 124 |
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| 125 | #define TF_MASK 0x00000100
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| 126 | #define IF_MASK 0x00000200
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| 127 | #define DF_MASK 0x00000400
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| 128 | #define IOPL_MASK 0x00003000
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| 129 | #define NT_MASK 0x00004000
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| 130 | #define RF_MASK 0x00010000
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| 131 | #define VM_MASK 0x00020000
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| 132 | #define AC_MASK 0x00040000
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| 133 | #define VIF_MASK 0x00080000
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| 134 | #define VIP_MASK 0x00100000
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| 135 | #define ID_MASK 0x00200000
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| 136 |
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| 137 | /* hidden flags - used internally by qemu to represent additionnal cpu
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| 138 | states. Only the CPL, INHIBIT_IRQ, SMM and SVMI are not redundant. We avoid
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| 139 | using the IOPL_MASK, TF_MASK and VM_MASK bit position to ease oring
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| 140 | with eflags. */
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| 141 | /* current cpl */
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| 142 | #define HF_CPL_SHIFT 0
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| 143 | /* true if soft mmu is being used */
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| 144 | #define HF_SOFTMMU_SHIFT 2
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| 145 | /* true if hardware interrupts must be disabled for next instruction */
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| 146 | #define HF_INHIBIT_IRQ_SHIFT 3
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| 147 | /* 16 or 32 segments */
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| 148 | #define HF_CS32_SHIFT 4
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| 149 | #define HF_SS32_SHIFT 5
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| 150 | /* zero base for DS, ES and SS : can be '0' only in 32 bit CS segment */
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| 151 | #define HF_ADDSEG_SHIFT 6
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| 152 | /* copy of CR0.PE (protected mode) */
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| 153 | #define HF_PE_SHIFT 7
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| 154 | #define HF_TF_SHIFT 8 /* must be same as eflags */
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| 155 | #define HF_MP_SHIFT 9 /* the order must be MP, EM, TS */
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| 156 | #define HF_EM_SHIFT 10
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| 157 | #define HF_TS_SHIFT 11
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| 158 | #define HF_IOPL_SHIFT 12 /* must be same as eflags */
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| 159 | #define HF_LMA_SHIFT 14 /* only used on x86_64: long mode active */
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| 160 | #define HF_CS64_SHIFT 15 /* only used on x86_64: 64 bit code segment */
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| 161 | #define HF_OSFXSR_SHIFT 16 /* CR4.OSFXSR */
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| 162 | #define HF_VM_SHIFT 17 /* must be same as eflags */
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| 163 | #define HF_HALTED_SHIFT 18 /* CPU halted */
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| 164 | #define HF_SMM_SHIFT 19 /* CPU in SMM mode */
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| 165 | #define HF_SVME_SHIFT 20 /* SVME enabled (copy of EFER.SVME) */
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| 166 | #define HF_SVMI_SHIFT 21 /* SVM intercepts are active */
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| 167 |
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| 168 | #define HF_CPL_MASK (3 << HF_CPL_SHIFT)
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| 169 | #define HF_SOFTMMU_MASK (1 << HF_SOFTMMU_SHIFT)
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| 170 | #define HF_INHIBIT_IRQ_MASK (1 << HF_INHIBIT_IRQ_SHIFT)
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| 171 | #define HF_CS32_MASK (1 << HF_CS32_SHIFT)
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| 172 | #define HF_SS32_MASK (1 << HF_SS32_SHIFT)
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| 173 | #define HF_ADDSEG_MASK (1 << HF_ADDSEG_SHIFT)
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| 174 | #define HF_PE_MASK (1 << HF_PE_SHIFT)
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| 175 | #define HF_TF_MASK (1 << HF_TF_SHIFT)
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| 176 | #define HF_MP_MASK (1 << HF_MP_SHIFT)
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| 177 | #define HF_EM_MASK (1 << HF_EM_SHIFT)
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| 178 | #define HF_TS_MASK (1 << HF_TS_SHIFT)
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| 179 | #define HF_LMA_MASK (1 << HF_LMA_SHIFT)
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| 180 | #define HF_CS64_MASK (1 << HF_CS64_SHIFT)
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| 181 | #define HF_OSFXSR_MASK (1 << HF_OSFXSR_SHIFT)
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| 182 | #define HF_HALTED_MASK (1 << HF_HALTED_SHIFT)
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| 183 | #define HF_SMM_MASK (1 << HF_SMM_SHIFT)
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| 184 | #define HF_SVME_MASK (1 << HF_SVME_SHIFT)
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| 185 | #define HF_SVMI_MASK (1 << HF_SVMI_SHIFT)
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| 186 |
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| 187 | /* hflags2 */
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| 188 |
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| 189 | #define HF2_GIF_SHIFT 0 /* if set CPU takes interrupts */
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| 190 | #define HF2_HIF_SHIFT 1 /* value of IF_MASK when entering SVM */
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| 191 | #define HF2_NMI_SHIFT 2 /* CPU serving NMI */
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| 192 | #define HF2_VINTR_SHIFT 3 /* value of V_INTR_MASKING bit */
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| 193 |
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| 194 | #define HF2_GIF_MASK (1 << HF2_GIF_SHIFT)
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| 195 | #define HF2_HIF_MASK (1 << HF2_HIF_SHIFT)
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| 196 | #define HF2_NMI_MASK (1 << HF2_NMI_SHIFT)
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| 197 | #define HF2_VINTR_MASK (1 << HF2_VINTR_SHIFT)
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| 198 |
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| 199 | #define CR0_PE_MASK (1 << 0)
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| 200 | #define CR0_MP_MASK (1 << 1)
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| 201 | #define CR0_EM_MASK (1 << 2)
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| 202 | #define CR0_TS_MASK (1 << 3)
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| 203 | #define CR0_ET_MASK (1 << 4)
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| 204 | #define CR0_NE_MASK (1 << 5)
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| 205 | #define CR0_WP_MASK (1 << 16)
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| 206 | #define CR0_AM_MASK (1 << 18)
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| 207 | #define CR0_PG_MASK (1 << 31)
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| 208 |
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| 209 | #define CR4_VME_MASK (1 << 0)
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| 210 | #define CR4_PVI_MASK (1 << 1)
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| 211 | #define CR4_TSD_MASK (1 << 2)
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| 212 | #define CR4_DE_MASK (1 << 3)
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| 213 | #define CR4_PSE_MASK (1 << 4)
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| 214 | #define CR4_PAE_MASK (1 << 5)
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| 215 | #define CR4_PGE_MASK (1 << 7)
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| 216 | #define CR4_PCE_MASK (1 << 8)
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| 217 | #define CR4_OSFXSR_MASK (1 << 9)
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| 218 | #define CR4_OSXMMEXCPT_MASK (1 << 10)
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| 219 |
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| 220 | #define PG_PRESENT_BIT 0
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| 221 | #define PG_RW_BIT 1
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| 222 | #define PG_USER_BIT 2
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| 223 | #define PG_PWT_BIT 3
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| 224 | #define PG_PCD_BIT 4
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| 225 | #define PG_ACCESSED_BIT 5
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| 226 | #define PG_DIRTY_BIT 6
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| 227 | #define PG_PSE_BIT 7
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| 228 | #define PG_GLOBAL_BIT 8
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| 229 | #define PG_NX_BIT 63
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| 230 |
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| 231 | #define PG_PRESENT_MASK (1 << PG_PRESENT_BIT)
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| 232 | #define PG_RW_MASK (1 << PG_RW_BIT)
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| 233 | #define PG_USER_MASK (1 << PG_USER_BIT)
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| 234 | #define PG_PWT_MASK (1 << PG_PWT_BIT)
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| 235 | #define PG_PCD_MASK (1 << PG_PCD_BIT)
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| 236 | #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
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| 237 | #define PG_DIRTY_MASK (1 << PG_DIRTY_BIT)
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| 238 | #define PG_PSE_MASK (1 << PG_PSE_BIT)
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| 239 | #define PG_GLOBAL_MASK (1 << PG_GLOBAL_BIT)
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| 240 | #define PG_NX_MASK (1LL << PG_NX_BIT)
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| 241 |
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| 242 | #define PG_ERROR_W_BIT 1
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| 243 |
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| 244 | #define PG_ERROR_P_MASK 0x01
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| 245 | #define PG_ERROR_W_MASK (1 << PG_ERROR_W_BIT)
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| 246 | #define PG_ERROR_U_MASK 0x04
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| 247 | #define PG_ERROR_RSVD_MASK 0x08
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| 248 | #define PG_ERROR_I_D_MASK 0x10
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| 249 |
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| 250 | #define MSR_IA32_APICBASE 0x1b
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| 251 | #define MSR_IA32_APICBASE_BSP (1<<8)
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| 252 | #define MSR_IA32_APICBASE_ENABLE (1<<11)
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| 253 | #define MSR_IA32_APICBASE_BASE (0xfffff<<12)
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| 254 |
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| 255 | #ifndef MSR_IA32_SYSENTER_CS /* VBox x86.h klugde */
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| 256 | #define MSR_IA32_SYSENTER_CS 0x174
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| 257 | #define MSR_IA32_SYSENTER_ESP 0x175
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| 258 | #define MSR_IA32_SYSENTER_EIP 0x176
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| 259 | #endif
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| 260 |
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| 261 | #define MSR_IA32_SYSENTER_CS 0x174
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| 262 | #define MSR_IA32_SYSENTER_ESP 0x175
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| 263 | #define MSR_IA32_SYSENTER_EIP 0x176
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| 264 |
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| 265 | #define MSR_MCG_CAP 0x179
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| 266 | #define MSR_MCG_STATUS 0x17a
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| 267 | #define MSR_MCG_CTL 0x17b
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| 268 |
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| 269 | #define MSR_IA32_PERF_STATUS 0x198
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| 270 |
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| 271 | #define MSR_PAT 0x277
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| 272 |
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| 273 | #define MSR_EFER 0xc0000080
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| 274 |
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| 275 | #define MSR_EFER_SCE (1 << 0)
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| 276 | #define MSR_EFER_LME (1 << 8)
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| 277 | #define MSR_EFER_LMA (1 << 10)
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| 278 | #define MSR_EFER_NXE (1 << 11)
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| 279 | #define MSR_EFER_SVME (1 << 12)
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| 280 | #define MSR_EFER_FFXSR (1 << 14)
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| 281 |
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| 282 | #ifdef VBOX
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| 283 | #define MSR_APIC_RANGE_START 0x800
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| 284 | #define MSR_APIC_RANGE_END 0x900
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| 285 | #endif
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| 286 |
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| 287 | #define MSR_STAR 0xc0000081
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| 288 | #define MSR_LSTAR 0xc0000082
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| 289 | #define MSR_CSTAR 0xc0000083
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| 290 | #define MSR_FMASK 0xc0000084
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| 291 | #define MSR_FSBASE 0xc0000100
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| 292 | #define MSR_GSBASE 0xc0000101
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| 293 | #define MSR_KERNELGSBASE 0xc0000102
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| 294 |
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| 295 | #define MSR_VM_HSAVE_PA 0xc0010117
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| 296 |
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| 297 | /* cpuid_features bits */
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| 298 | #define CPUID_FP87 (1 << 0)
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| 299 | #define CPUID_VME (1 << 1)
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| 300 | #define CPUID_DE (1 << 2)
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| 301 | #define CPUID_PSE (1 << 3)
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| 302 | #define CPUID_TSC (1 << 4)
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| 303 | #define CPUID_MSR (1 << 5)
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| 304 | #define CPUID_PAE (1 << 6)
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| 305 | #define CPUID_MCE (1 << 7)
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| 306 | #define CPUID_CX8 (1 << 8)
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| 307 | #define CPUID_APIC (1 << 9)
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| 308 | #define CPUID_SEP (1 << 11) /* sysenter/sysexit */
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| 309 | #define CPUID_MTRR (1 << 12)
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| 310 | #define CPUID_PGE (1 << 13)
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| 311 | #define CPUID_MCA (1 << 14)
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| 312 | #define CPUID_CMOV (1 << 15)
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| 313 | #define CPUID_PAT (1 << 16)
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| 314 | #define CPUID_PSE36 (1 << 17)
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| 315 | #define CPUID_CLFLUSH (1 << 19)
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| 316 | #define CPUID_DTS (1 << 21)
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| 317 | #define CPUID_ACPI (1 << 22)
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| 318 | #define CPUID_MMX (1 << 23)
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| 319 | #define CPUID_FXSR (1 << 24)
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| 320 | #define CPUID_SSE (1 << 25)
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| 321 | #define CPUID_SSE2 (1 << 26)
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| 322 | #define CPUID_SS (1 << 27)
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| 323 | #define CPUID_HT (1 << 28)
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| 324 | #define CPUID_TM (1 << 29)
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| 325 | #define CPUID_IA64 (1 << 30)
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| 326 | #define CPUID_PBE (1 << 31)
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| 327 |
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| 328 | #define CPUID_EXT_SSE3 (1 << 0)
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| 329 | #define CPUID_EXT_DTES64 (1 << 2)
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| 330 | #define CPUID_EXT_MONITOR (1 << 3)
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| 331 | #define CPUID_EXT_DSCPL (1 << 4)
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| 332 | #define CPUID_EXT_VMX (1 << 5)
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| 333 | #define CPUID_EXT_SMX (1 << 6)
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| 334 | #define CPUID_EXT_EST (1 << 7)
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| 335 | #define CPUID_EXT_TM2 (1 << 8)
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| 336 | #define CPUID_EXT_SSSE3 (1 << 9)
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| 337 | #define CPUID_EXT_CID (1 << 10)
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| 338 | #define CPUID_EXT_CX16 (1 << 13)
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| 339 | #define CPUID_EXT_XTPR (1 << 14)
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| 340 | #define CPUID_EXT_PDCM (1 << 15)
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| 341 | #define CPUID_EXT_DCA (1 << 18)
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| 342 | #define CPUID_EXT_SSE41 (1 << 19)
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| 343 | #define CPUID_EXT_SSE42 (1 << 20)
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| 344 | #define CPUID_EXT_X2APIC (1 << 21)
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| 345 | #define CPUID_EXT_MOVBE (1 << 22)
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| 346 | #define CPUID_EXT_POPCNT (1 << 23)
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| 347 | #define CPUID_EXT_XSAVE (1 << 26)
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| 348 | #define CPUID_EXT_OSXSAVE (1 << 27)
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| 349 |
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| 350 | #define CPUID_EXT2_SYSCALL (1 << 11)
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| 351 | #define CPUID_EXT2_MP (1 << 19)
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| 352 | #define CPUID_EXT2_NX (1 << 20)
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| 353 | #define CPUID_EXT2_MMXEXT (1 << 22)
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| 354 | #define CPUID_EXT2_FFXSR (1 << 25)
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| 355 | #define CPUID_EXT2_PDPE1GB (1 << 26)
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| 356 | #define CPUID_EXT2_RDTSCP (1 << 27)
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| 357 | #define CPUID_EXT2_LM (1 << 29)
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| 358 | #define CPUID_EXT2_3DNOWEXT (1 << 30)
|
|---|
| 359 | #define CPUID_EXT2_3DNOW (1 << 31)
|
|---|
| 360 |
|
|---|
| 361 | #define CPUID_EXT3_LAHF_LM (1 << 0)
|
|---|
| 362 | #define CPUID_EXT3_CMP_LEG (1 << 1)
|
|---|
| 363 | #define CPUID_EXT3_SVM (1 << 2)
|
|---|
| 364 | #define CPUID_EXT3_EXTAPIC (1 << 3)
|
|---|
| 365 | #define CPUID_EXT3_CR8LEG (1 << 4)
|
|---|
| 366 | #define CPUID_EXT3_ABM (1 << 5)
|
|---|
| 367 | #define CPUID_EXT3_SSE4A (1 << 6)
|
|---|
| 368 | #define CPUID_EXT3_MISALIGNSSE (1 << 7)
|
|---|
| 369 | #define CPUID_EXT3_3DNOWPREFETCH (1 << 8)
|
|---|
| 370 | #define CPUID_EXT3_OSVW (1 << 9)
|
|---|
| 371 | #define CPUID_EXT3_IBS (1 << 10)
|
|---|
| 372 | #define CPUID_EXT3_SKINIT (1 << 12)
|
|---|
| 373 |
|
|---|
| 374 | #define CPUID_VENDOR_INTEL_1 0x756e6547 /* "Genu" */
|
|---|
| 375 | #define CPUID_VENDOR_INTEL_2 0x49656e69 /* "ineI" */
|
|---|
| 376 | #define CPUID_VENDOR_INTEL_3 0x6c65746e /* "ntel" */
|
|---|
| 377 |
|
|---|
| 378 | #define CPUID_VENDOR_AMD_1 0x68747541 /* "Auth" */
|
|---|
| 379 | #define CPUID_VENDOR_AMD_2 0x69746e65 /* "enti" */
|
|---|
| 380 | #define CPUID_VENDOR_AMD_3 0x444d4163 /* "cAMD" */
|
|---|
| 381 |
|
|---|
| 382 | #define CPUID_MWAIT_IBE (1 << 1) /* Interrupts can exit capability */
|
|---|
| 383 | #define CPUID_MWAIT_EMX (1 << 0) /* enumeration supported */
|
|---|
| 384 |
|
|---|
| 385 | #define EXCP00_DIVZ 0
|
|---|
| 386 | #define EXCP01_SSTP 1
|
|---|
| 387 | #define EXCP02_NMI 2
|
|---|
| 388 | #define EXCP03_INT3 3
|
|---|
| 389 | #define EXCP04_INTO 4
|
|---|
| 390 | #define EXCP05_BOUND 5
|
|---|
| 391 | #define EXCP06_ILLOP 6
|
|---|
| 392 | #define EXCP07_PREX 7
|
|---|
| 393 | #define EXCP08_DBLE 8
|
|---|
| 394 | #define EXCP09_XERR 9
|
|---|
| 395 | #define EXCP0A_TSS 10
|
|---|
| 396 | #define EXCP0B_NOSEG 11
|
|---|
| 397 | #define EXCP0C_STACK 12
|
|---|
| 398 | #define EXCP0D_GPF 13
|
|---|
| 399 | #define EXCP0E_PAGE 14
|
|---|
| 400 | #define EXCP10_COPR 16
|
|---|
| 401 | #define EXCP11_ALGN 17
|
|---|
| 402 | #define EXCP12_MCHK 18
|
|---|
| 403 |
|
|---|
| 404 | #define EXCP_SYSCALL 0x100 /* only happens in user only emulation
|
|---|
| 405 | for syscall instruction */
|
|---|
| 406 |
|
|---|
| 407 | enum {
|
|---|
| 408 | CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
|
|---|
| 409 | CC_OP_EFLAGS, /* all cc are explicitely computed, CC_SRC = flags */
|
|---|
| 410 |
|
|---|
| 411 | CC_OP_MULB, /* modify all flags, C, O = (CC_SRC != 0) */
|
|---|
| 412 | CC_OP_MULW,
|
|---|
| 413 | CC_OP_MULL,
|
|---|
| 414 | CC_OP_MULQ,
|
|---|
| 415 |
|
|---|
| 416 | CC_OP_ADDB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
|
|---|
| 417 | CC_OP_ADDW,
|
|---|
| 418 | CC_OP_ADDL,
|
|---|
| 419 | CC_OP_ADDQ,
|
|---|
| 420 |
|
|---|
| 421 | CC_OP_ADCB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
|
|---|
| 422 | CC_OP_ADCW,
|
|---|
| 423 | CC_OP_ADCL,
|
|---|
| 424 | CC_OP_ADCQ,
|
|---|
| 425 |
|
|---|
| 426 | CC_OP_SUBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
|
|---|
| 427 | CC_OP_SUBW,
|
|---|
| 428 | CC_OP_SUBL,
|
|---|
| 429 | CC_OP_SUBQ,
|
|---|
| 430 |
|
|---|
| 431 | CC_OP_SBBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
|
|---|
| 432 | CC_OP_SBBW,
|
|---|
| 433 | CC_OP_SBBL,
|
|---|
| 434 | CC_OP_SBBQ,
|
|---|
| 435 |
|
|---|
| 436 | CC_OP_LOGICB, /* modify all flags, CC_DST = res */
|
|---|
| 437 | CC_OP_LOGICW,
|
|---|
| 438 | CC_OP_LOGICL,
|
|---|
| 439 | CC_OP_LOGICQ,
|
|---|
| 440 |
|
|---|
| 441 | CC_OP_INCB, /* modify all flags except, CC_DST = res, CC_SRC = C */
|
|---|
| 442 | CC_OP_INCW,
|
|---|
| 443 | CC_OP_INCL,
|
|---|
| 444 | CC_OP_INCQ,
|
|---|
| 445 |
|
|---|
| 446 | CC_OP_DECB, /* modify all flags except, CC_DST = res, CC_SRC = C */
|
|---|
| 447 | CC_OP_DECW,
|
|---|
| 448 | CC_OP_DECL,
|
|---|
| 449 | CC_OP_DECQ,
|
|---|
| 450 |
|
|---|
| 451 | CC_OP_SHLB, /* modify all flags, CC_DST = res, CC_SRC.msb = C */
|
|---|
| 452 | CC_OP_SHLW,
|
|---|
| 453 | CC_OP_SHLL,
|
|---|
| 454 | CC_OP_SHLQ,
|
|---|
| 455 |
|
|---|
| 456 | CC_OP_SARB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */
|
|---|
| 457 | CC_OP_SARW,
|
|---|
| 458 | CC_OP_SARL,
|
|---|
| 459 | CC_OP_SARQ,
|
|---|
| 460 |
|
|---|
| 461 | CC_OP_NB
|
|---|
| 462 | };
|
|---|
| 463 |
|
|---|
| 464 | #ifdef FLOATX80
|
|---|
| 465 | #define USE_X86LDOUBLE
|
|---|
| 466 | #endif
|
|---|
| 467 |
|
|---|
| 468 | #ifdef USE_X86LDOUBLE
|
|---|
| 469 | typedef floatx80 CPU86_LDouble;
|
|---|
| 470 | #else
|
|---|
| 471 | typedef float64 CPU86_LDouble;
|
|---|
| 472 | #endif
|
|---|
| 473 |
|
|---|
| 474 | typedef struct SegmentCache {
|
|---|
| 475 | uint32_t selector;
|
|---|
| 476 | target_ulong base;
|
|---|
| 477 | uint32_t limit;
|
|---|
| 478 | uint32_t flags;
|
|---|
| 479 | #ifdef VBOX
|
|---|
| 480 | /** The new selector is saved here when we are unable to sync it before invoking the recompiled code. */
|
|---|
| 481 | uint32_t newselector;
|
|---|
| 482 | #endif
|
|---|
| 483 | } SegmentCache;
|
|---|
| 484 |
|
|---|
| 485 | typedef union {
|
|---|
| 486 | uint8_t _b[16];
|
|---|
| 487 | uint16_t _w[8];
|
|---|
| 488 | uint32_t _l[4];
|
|---|
| 489 | uint64_t _q[2];
|
|---|
| 490 | float32 _s[4];
|
|---|
| 491 | float64 _d[2];
|
|---|
| 492 | } XMMReg;
|
|---|
| 493 |
|
|---|
| 494 | typedef union {
|
|---|
| 495 | uint8_t _b[8];
|
|---|
| 496 | uint16_t _w[2];
|
|---|
| 497 | uint32_t _l[1];
|
|---|
| 498 | float32 _s[2];
|
|---|
| 499 | uint64_t q;
|
|---|
| 500 | } MMXReg;
|
|---|
| 501 |
|
|---|
| 502 | #ifdef WORDS_BIGENDIAN
|
|---|
| 503 | #define XMM_B(n) _b[15 - (n)]
|
|---|
| 504 | #define XMM_W(n) _w[7 - (n)]
|
|---|
| 505 | #define XMM_L(n) _l[3 - (n)]
|
|---|
| 506 | #define XMM_S(n) _s[3 - (n)]
|
|---|
| 507 | #define XMM_Q(n) _q[1 - (n)]
|
|---|
| 508 | #define XMM_D(n) _d[1 - (n)]
|
|---|
| 509 |
|
|---|
| 510 | #define MMX_B(n) _b[7 - (n)]
|
|---|
| 511 | #define MMX_W(n) _w[3 - (n)]
|
|---|
| 512 | #define MMX_L(n) _l[1 - (n)]
|
|---|
| 513 | #define MMX_S(n) _s[1 - (n)]
|
|---|
| 514 | #else
|
|---|
| 515 | #define XMM_B(n) _b[n]
|
|---|
| 516 | #define XMM_W(n) _w[n]
|
|---|
| 517 | #define XMM_L(n) _l[n]
|
|---|
| 518 | #define XMM_S(n) _s[n]
|
|---|
| 519 | #define XMM_Q(n) _q[n]
|
|---|
| 520 | #define XMM_D(n) _d[n]
|
|---|
| 521 |
|
|---|
| 522 | #define MMX_B(n) _b[n]
|
|---|
| 523 | #define MMX_W(n) _w[n]
|
|---|
| 524 | #define MMX_L(n) _l[n]
|
|---|
| 525 | #define MMX_S(n) _s[n]
|
|---|
| 526 | #endif
|
|---|
| 527 | #define MMX_Q(n) q
|
|---|
| 528 |
|
|---|
| 529 | #ifdef TARGET_X86_64
|
|---|
| 530 | #define CPU_NB_REGS 16
|
|---|
| 531 | #else
|
|---|
| 532 | #define CPU_NB_REGS 8
|
|---|
| 533 | #endif
|
|---|
| 534 |
|
|---|
| 535 | #define NB_MMU_MODES 2
|
|---|
| 536 |
|
|---|
| 537 | typedef struct CPUX86State {
|
|---|
| 538 | /* standard registers */
|
|---|
| 539 | target_ulong regs[CPU_NB_REGS];
|
|---|
| 540 | target_ulong eip;
|
|---|
| 541 | target_ulong eflags; /* eflags register. During CPU emulation, CC
|
|---|
| 542 | flags and DF are set to zero because they are
|
|---|
| 543 | stored elsewhere */
|
|---|
| 544 |
|
|---|
| 545 | /* emulator internal eflags handling */
|
|---|
| 546 | target_ulong cc_src;
|
|---|
| 547 | target_ulong cc_dst;
|
|---|
| 548 | uint32_t cc_op;
|
|---|
| 549 | int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */
|
|---|
| 550 | uint32_t hflags; /* TB flags, see HF_xxx constants. These flags
|
|---|
| 551 | are known at translation time. */
|
|---|
| 552 | uint32_t hflags2; /* various other flags, see HF2_xxx constants. */
|
|---|
| 553 |
|
|---|
| 554 | /* segments */
|
|---|
| 555 | SegmentCache segs[6]; /* selector values */
|
|---|
| 556 | SegmentCache ldt;
|
|---|
| 557 | SegmentCache tr;
|
|---|
| 558 | SegmentCache gdt; /* only base and limit are used */
|
|---|
| 559 | SegmentCache idt; /* only base and limit are used */
|
|---|
| 560 |
|
|---|
| 561 | target_ulong cr[5]; /* NOTE: cr1 is unused */
|
|---|
| 562 | uint64_t a20_mask;
|
|---|
| 563 |
|
|---|
| 564 | /* FPU state */
|
|---|
| 565 | unsigned int fpstt; /* top of stack index */
|
|---|
| 566 | unsigned int fpus;
|
|---|
| 567 | unsigned int fpuc;
|
|---|
| 568 | uint8_t fptags[8]; /* 0 = valid, 1 = empty */
|
|---|
| 569 | union {
|
|---|
| 570 | #ifdef USE_X86LDOUBLE
|
|---|
| 571 | #ifndef VBOX
|
|---|
| 572 | CPU86_LDouble d __attribute__((aligned(16)));
|
|---|
| 573 | #else
|
|---|
| 574 | ALIGNED_MEMBER(CPU86_LDouble, d, 16);
|
|---|
| 575 | #endif
|
|---|
| 576 | #else
|
|---|
| 577 | CPU86_LDouble d;
|
|---|
| 578 | #endif
|
|---|
| 579 | MMXReg mmx;
|
|---|
| 580 | } fpregs[8];
|
|---|
| 581 |
|
|---|
| 582 | /* emulator internal variables */
|
|---|
| 583 | float_status fp_status;
|
|---|
| 584 | #ifdef VBOX
|
|---|
| 585 | uint32_t alignment3[3]; /* force the long double to start a 16 byte line. */
|
|---|
| 586 | #endif
|
|---|
| 587 | CPU86_LDouble ft0;
|
|---|
| 588 | #if defined(VBOX) && defined(RT_ARCH_X86) && !defined(RT_OS_DARWIN)
|
|---|
| 589 | uint32_t alignment4; /* long double is 12 byte, pad it to 16. */
|
|---|
| 590 | #endif
|
|---|
| 591 |
|
|---|
| 592 | float_status mmx_status; /* for 3DNow! float ops */
|
|---|
| 593 | float_status sse_status;
|
|---|
| 594 | uint32_t mxcsr;
|
|---|
| 595 | XMMReg xmm_regs[CPU_NB_REGS];
|
|---|
| 596 | XMMReg xmm_t0;
|
|---|
| 597 | MMXReg mmx_t0;
|
|---|
| 598 | target_ulong cc_tmp; /* temporary for rcr/rcl */
|
|---|
| 599 |
|
|---|
| 600 | /* sysenter registers */
|
|---|
| 601 | uint32_t sysenter_cs;
|
|---|
| 602 | uint64_t sysenter_esp;
|
|---|
| 603 | uint64_t sysenter_eip;
|
|---|
| 604 | #ifdef VBOX
|
|---|
| 605 | uint32_t alignment0;
|
|---|
| 606 | #endif
|
|---|
| 607 | uint64_t efer;
|
|---|
| 608 | uint64_t star;
|
|---|
| 609 |
|
|---|
| 610 | uint64_t vm_hsave;
|
|---|
| 611 | uint64_t vm_vmcb;
|
|---|
| 612 | uint64_t tsc_offset;
|
|---|
| 613 | uint64_t intercept;
|
|---|
| 614 | uint16_t intercept_cr_read;
|
|---|
| 615 | uint16_t intercept_cr_write;
|
|---|
| 616 | uint16_t intercept_dr_read;
|
|---|
| 617 | uint16_t intercept_dr_write;
|
|---|
| 618 | uint32_t intercept_exceptions;
|
|---|
| 619 | uint8_t v_tpr;
|
|---|
| 620 |
|
|---|
| 621 | #ifdef TARGET_X86_64
|
|---|
| 622 | target_ulong lstar;
|
|---|
| 623 | target_ulong cstar;
|
|---|
| 624 | target_ulong fmask;
|
|---|
| 625 | target_ulong kernelgsbase;
|
|---|
| 626 | #endif
|
|---|
| 627 |
|
|---|
| 628 | uint64_t pat;
|
|---|
| 629 |
|
|---|
| 630 | /* exception/interrupt handling */
|
|---|
| 631 | int error_code;
|
|---|
| 632 | int exception_is_int;
|
|---|
| 633 | target_ulong exception_next_eip;
|
|---|
| 634 | target_ulong dr[8]; /* debug registers */
|
|---|
| 635 | uint32_t smbase;
|
|---|
| 636 | int old_exception; /* exception in flight */
|
|---|
| 637 |
|
|---|
| 638 |
|
|---|
| 639 | CPU_COMMON
|
|---|
| 640 |
|
|---|
| 641 | #ifdef VBOX
|
|---|
| 642 | /** cpu state flags. (see defines below) */
|
|---|
| 643 | uint32_t state;
|
|---|
| 644 | /** The VM handle. */
|
|---|
| 645 | PVM pVM;
|
|---|
| 646 | /** code buffer for instruction emulation */
|
|---|
| 647 | void *pvCodeBuffer;
|
|---|
| 648 | /** code buffer size */
|
|---|
| 649 | uint32_t cbCodeBuffer;
|
|---|
| 650 | #endif /* VBOX */
|
|---|
| 651 |
|
|---|
| 652 | /* processor features (e.g. for CPUID insn) */
|
|---|
| 653 | #ifndef VBOX /* remR3CpuId deals with these */
|
|---|
| 654 | uint32_t cpuid_level;
|
|---|
| 655 | uint32_t cpuid_vendor1;
|
|---|
| 656 | uint32_t cpuid_vendor2;
|
|---|
| 657 | uint32_t cpuid_vendor3;
|
|---|
| 658 | uint32_t cpuid_version;
|
|---|
| 659 | #endif /* !VBOX */
|
|---|
| 660 | uint32_t cpuid_features;
|
|---|
| 661 | uint32_t cpuid_ext_features;
|
|---|
| 662 | #ifndef VBOX
|
|---|
| 663 | uint32_t cpuid_xlevel;
|
|---|
| 664 | uint32_t cpuid_model[12];
|
|---|
| 665 | #endif /* !VBOX */
|
|---|
| 666 | uint32_t cpuid_ext2_features;
|
|---|
| 667 | uint32_t cpuid_ext3_features;
|
|---|
| 668 | uint32_t cpuid_apic_id;
|
|---|
| 669 |
|
|---|
| 670 | #ifndef VBOX
|
|---|
| 671 | #ifdef USE_KQEMU
|
|---|
| 672 | int kqemu_enabled;
|
|---|
| 673 | int last_io_time;
|
|---|
| 674 | #endif
|
|---|
| 675 | /* in order to simplify APIC support, we leave this pointer to the
|
|---|
| 676 | user */
|
|---|
| 677 | struct APICState *apic_state;
|
|---|
| 678 | #else
|
|---|
| 679 | uint32_t alignment2[3];
|
|---|
| 680 | #endif
|
|---|
| 681 | } CPUX86State;
|
|---|
| 682 |
|
|---|
| 683 | #ifdef VBOX
|
|---|
| 684 |
|
|---|
| 685 | /* Version 1.6 structure; just for loading the old saved state */
|
|---|
| 686 | typedef struct SegmentCache_Ver16 {
|
|---|
| 687 | uint32_t selector;
|
|---|
| 688 | uint32_t base;
|
|---|
| 689 | uint32_t limit;
|
|---|
| 690 | uint32_t flags;
|
|---|
| 691 | /** The new selector is saved here when we are unable to sync it before invoking the recompiled code. */
|
|---|
| 692 | uint32_t newselector;
|
|---|
| 693 | } SegmentCache_Ver16;
|
|---|
| 694 |
|
|---|
| 695 | #define CPU_NB_REGS_VER16 8
|
|---|
| 696 |
|
|---|
| 697 | /* Version 1.6 structure; just for loading the old saved state */
|
|---|
| 698 | typedef struct CPUX86State_Ver16 {
|
|---|
| 699 | #if TARGET_LONG_BITS > HOST_LONG_BITS
|
|---|
| 700 | /* temporaries if we cannot store them in host registers */
|
|---|
| 701 | uint32_t t0, t1, t2;
|
|---|
| 702 | #endif
|
|---|
| 703 |
|
|---|
| 704 | /* standard registers */
|
|---|
| 705 | uint32_t regs[CPU_NB_REGS_VER16];
|
|---|
| 706 | uint32_t eip;
|
|---|
| 707 | uint32_t eflags; /* eflags register. During CPU emulation, CC
|
|---|
| 708 | flags and DF are set to zero because they are
|
|---|
| 709 | stored elsewhere */
|
|---|
| 710 |
|
|---|
| 711 | /* emulator internal eflags handling */
|
|---|
| 712 | uint32_t cc_src;
|
|---|
| 713 | uint32_t cc_dst;
|
|---|
| 714 | uint32_t cc_op;
|
|---|
| 715 | int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */
|
|---|
| 716 | uint32_t hflags; /* hidden flags, see HF_xxx constants */
|
|---|
| 717 |
|
|---|
| 718 | /* segments */
|
|---|
| 719 | SegmentCache_Ver16 segs[6]; /* selector values */
|
|---|
| 720 | SegmentCache_Ver16 ldt;
|
|---|
| 721 | SegmentCache_Ver16 tr;
|
|---|
| 722 | SegmentCache_Ver16 gdt; /* only base and limit are used */
|
|---|
| 723 | SegmentCache_Ver16 idt; /* only base and limit are used */
|
|---|
| 724 |
|
|---|
| 725 | uint32_t cr[5]; /* NOTE: cr1 is unused */
|
|---|
| 726 | uint32_t a20_mask;
|
|---|
| 727 |
|
|---|
| 728 | /* FPU state */
|
|---|
| 729 | unsigned int fpstt; /* top of stack index */
|
|---|
| 730 | unsigned int fpus;
|
|---|
| 731 | unsigned int fpuc;
|
|---|
| 732 | uint8_t fptags[8]; /* 0 = valid, 1 = empty */
|
|---|
| 733 | union {
|
|---|
| 734 | #ifdef USE_X86LDOUBLE
|
|---|
| 735 | #ifndef VBOX
|
|---|
| 736 | CPU86_LDouble d __attribute__((aligned(16)));
|
|---|
| 737 | #else
|
|---|
| 738 | ALIGNED_MEMBER(CPU86_LDouble, d, 16);
|
|---|
| 739 | #endif
|
|---|
| 740 | #else
|
|---|
| 741 | CPU86_LDouble d;
|
|---|
| 742 | #endif
|
|---|
| 743 | MMXReg mmx;
|
|---|
| 744 | } fpregs[8];
|
|---|
| 745 |
|
|---|
| 746 | /* emulator internal variables */
|
|---|
| 747 | float_status fp_status;
|
|---|
| 748 | #ifdef VBOX
|
|---|
| 749 | uint32_t alignment3[3]; /* force the long double to start a 16 byte line. */
|
|---|
| 750 | #endif
|
|---|
| 751 | CPU86_LDouble ft0;
|
|---|
| 752 | #if defined(VBOX) && defined(RT_ARCH_X86) && !defined(RT_OS_DARWIN)
|
|---|
| 753 | uint32_t alignment4; /* long double is 12 byte, pad it to 16. */
|
|---|
| 754 | #endif
|
|---|
| 755 | union {
|
|---|
| 756 | float f;
|
|---|
| 757 | double d;
|
|---|
| 758 | int i32;
|
|---|
| 759 | int64_t i64;
|
|---|
| 760 | } fp_convert;
|
|---|
| 761 |
|
|---|
| 762 | float_status sse_status;
|
|---|
| 763 | uint32_t mxcsr;
|
|---|
| 764 | XMMReg xmm_regs[CPU_NB_REGS_VER16];
|
|---|
| 765 | XMMReg xmm_t0;
|
|---|
| 766 | MMXReg mmx_t0;
|
|---|
| 767 |
|
|---|
| 768 | /* sysenter registers */
|
|---|
| 769 | uint32_t sysenter_cs;
|
|---|
| 770 | uint32_t sysenter_esp;
|
|---|
| 771 | uint32_t sysenter_eip;
|
|---|
| 772 | #ifdef VBOX
|
|---|
| 773 | uint32_t alignment0;
|
|---|
| 774 | #endif
|
|---|
| 775 | uint64_t efer;
|
|---|
| 776 | uint64_t star;
|
|---|
| 777 |
|
|---|
| 778 | uint64_t pat;
|
|---|
| 779 |
|
|---|
| 780 | /* temporary data for USE_CODE_COPY mode */
|
|---|
| 781 | #ifdef USE_CODE_COPY
|
|---|
| 782 | uint32_t tmp0;
|
|---|
| 783 | uint32_t saved_esp;
|
|---|
| 784 | int native_fp_regs; /* if true, the FPU state is in the native CPU regs */
|
|---|
| 785 | #endif
|
|---|
| 786 |
|
|---|
| 787 | /* exception/interrupt handling */
|
|---|
| 788 | jmp_buf jmp_env;
|
|---|
| 789 | } CPUX86State_Ver16;
|
|---|
| 790 |
|
|---|
| 791 | /** CPUX86State state flags
|
|---|
| 792 | * @{ */
|
|---|
| 793 | #define CPU_RAW_RING0 0x0002 /* Set after first time RawR0 is executed, never cleared. */
|
|---|
| 794 | #define CPU_EMULATE_SINGLE_INSTR 0x0040 /* Execute a single instruction in emulation mode */
|
|---|
| 795 | #define CPU_EMULATE_SINGLE_STEP 0x0080 /* go into single step mode */
|
|---|
| 796 | #define CPU_RAW_HWACC 0x0100 /* Set after first time HWACC is executed, never cleared. */
|
|---|
| 797 | /** @} */
|
|---|
| 798 | #endif /* !VBOX */
|
|---|
| 799 |
|
|---|
| 800 | #ifdef VBOX
|
|---|
| 801 | CPUX86State *cpu_x86_init(CPUX86State *env, const char *cpu_model);
|
|---|
| 802 | #else /* !VBOX */
|
|---|
| 803 | CPUX86State *cpu_x86_init(const char *cpu_model);
|
|---|
| 804 | #endif /* !VBOX */
|
|---|
| 805 | int cpu_x86_exec(CPUX86State *s);
|
|---|
| 806 | void cpu_x86_close(CPUX86State *s);
|
|---|
| 807 | void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt,
|
|---|
| 808 | ...));
|
|---|
| 809 | int cpu_get_pic_interrupt(CPUX86State *s);
|
|---|
| 810 | /* MSDOS compatibility mode FPU exception support */
|
|---|
| 811 | void cpu_set_ferr(CPUX86State *s);
|
|---|
| 812 |
|
|---|
| 813 | /* this function must always be used to load data in the segment
|
|---|
| 814 | cache: it synchronizes the hflags with the segment cache values */
|
|---|
| 815 | #ifndef VBOX
|
|---|
| 816 | static inline void cpu_x86_load_seg_cache(CPUX86State *env,
|
|---|
| 817 | int seg_reg, unsigned int selector,
|
|---|
| 818 | target_ulong base,
|
|---|
| 819 | unsigned int limit,
|
|---|
| 820 | unsigned int flags)
|
|---|
| 821 | #else
|
|---|
| 822 | DECLINLINE(void) cpu_x86_load_seg_cache(CPUX86State *env,
|
|---|
| 823 | int seg_reg, unsigned int selector,
|
|---|
| 824 | target_ulong base,
|
|---|
| 825 | unsigned int limit,
|
|---|
| 826 | unsigned int flags)
|
|---|
| 827 |
|
|---|
| 828 | #endif
|
|---|
| 829 | {
|
|---|
| 830 | SegmentCache *sc;
|
|---|
| 831 | unsigned int new_hflags;
|
|---|
| 832 |
|
|---|
| 833 | sc = &env->segs[seg_reg];
|
|---|
| 834 | sc->selector = selector;
|
|---|
| 835 | sc->base = base;
|
|---|
| 836 | sc->limit = limit;
|
|---|
| 837 | sc->flags = flags;
|
|---|
| 838 | #ifdef VBOX
|
|---|
| 839 | sc->newselector = 0;
|
|---|
| 840 | #endif
|
|---|
| 841 |
|
|---|
| 842 | /* update the hidden flags */
|
|---|
| 843 | {
|
|---|
| 844 | if (seg_reg == R_CS) {
|
|---|
| 845 | #ifdef TARGET_X86_64
|
|---|
| 846 | if ((env->hflags & HF_LMA_MASK) && (flags & DESC_L_MASK)) {
|
|---|
| 847 | /* long mode */
|
|---|
| 848 | env->hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK;
|
|---|
| 849 | env->hflags &= ~(HF_ADDSEG_MASK);
|
|---|
| 850 | } else
|
|---|
| 851 | #endif
|
|---|
| 852 | {
|
|---|
| 853 | /* legacy / compatibility case */
|
|---|
| 854 | new_hflags = (env->segs[R_CS].flags & DESC_B_MASK)
|
|---|
| 855 | >> (DESC_B_SHIFT - HF_CS32_SHIFT);
|
|---|
| 856 | env->hflags = (env->hflags & ~(HF_CS32_MASK | HF_CS64_MASK)) |
|
|---|
| 857 | new_hflags;
|
|---|
| 858 | }
|
|---|
| 859 | }
|
|---|
| 860 | new_hflags = (env->segs[R_SS].flags & DESC_B_MASK)
|
|---|
| 861 | >> (DESC_B_SHIFT - HF_SS32_SHIFT);
|
|---|
| 862 | if (env->hflags & HF_CS64_MASK) {
|
|---|
| 863 | /* zero base assumed for DS, ES and SS in long mode */
|
|---|
| 864 | } else if (!(env->cr[0] & CR0_PE_MASK) ||
|
|---|
| 865 | (env->eflags & VM_MASK) ||
|
|---|
| 866 | !(env->hflags & HF_CS32_MASK)) {
|
|---|
| 867 | /* XXX: try to avoid this test. The problem comes from the
|
|---|
| 868 | fact that is real mode or vm86 mode we only modify the
|
|---|
| 869 | 'base' and 'selector' fields of the segment cache to go
|
|---|
| 870 | faster. A solution may be to force addseg to one in
|
|---|
| 871 | translate-i386.c. */
|
|---|
| 872 | new_hflags |= HF_ADDSEG_MASK;
|
|---|
| 873 | } else {
|
|---|
| 874 | new_hflags |= ((env->segs[R_DS].base |
|
|---|
| 875 | env->segs[R_ES].base |
|
|---|
| 876 | env->segs[R_SS].base) != 0) <<
|
|---|
| 877 | HF_ADDSEG_SHIFT;
|
|---|
| 878 | }
|
|---|
| 879 | env->hflags = (env->hflags &
|
|---|
| 880 | ~(HF_SS32_MASK | HF_ADDSEG_MASK)) | new_hflags;
|
|---|
| 881 | }
|
|---|
| 882 | }
|
|---|
| 883 |
|
|---|
| 884 | /* wrapper, just in case memory mappings must be changed */
|
|---|
| 885 | #ifndef VBOX
|
|---|
| 886 | static inline void cpu_x86_set_cpl(CPUX86State *s, int cpl)
|
|---|
| 887 | #else
|
|---|
| 888 | DECLINLINE(void) cpu_x86_set_cpl(CPUX86State *s, int cpl)
|
|---|
| 889 | #endif
|
|---|
| 890 | {
|
|---|
| 891 | #if HF_CPL_MASK == 3
|
|---|
| 892 | s->hflags = (s->hflags & ~HF_CPL_MASK) | cpl;
|
|---|
| 893 | #else
|
|---|
| 894 | #error HF_CPL_MASK is hardcoded
|
|---|
| 895 | #endif
|
|---|
| 896 | }
|
|---|
| 897 |
|
|---|
| 898 | /* used for debug or cpu save/restore */
|
|---|
| 899 | void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, CPU86_LDouble f);
|
|---|
| 900 | CPU86_LDouble cpu_set_fp80(uint64_t mant, uint16_t upper);
|
|---|
| 901 |
|
|---|
| 902 | /* the following helpers are only usable in user mode simulation as
|
|---|
| 903 | they can trigger unexpected exceptions */
|
|---|
| 904 | void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector);
|
|---|
| 905 | void cpu_x86_fsave(CPUX86State *s, uint8_t *ptr, int data32);
|
|---|
| 906 | void cpu_x86_frstor(CPUX86State *s, uint8_t *ptr, int data32);
|
|---|
| 907 |
|
|---|
| 908 | /* you can call this signal handler from your SIGBUS and SIGSEGV
|
|---|
| 909 | signal handlers to inform the virtual CPU of exceptions. non zero
|
|---|
| 910 | is returned if the signal was handled by the virtual CPU. */
|
|---|
| 911 | int cpu_x86_signal_handler(int host_signum, void *pinfo,
|
|---|
| 912 | void *puc);
|
|---|
| 913 | void cpu_x86_set_a20(CPUX86State *env, int a20_state);
|
|---|
| 914 |
|
|---|
| 915 | uint64_t cpu_get_tsc(CPUX86State *env);
|
|---|
| 916 |
|
|---|
| 917 | void cpu_set_apic_base(CPUX86State *env, uint64_t val);
|
|---|
| 918 | uint64_t cpu_get_apic_base(CPUX86State *env);
|
|---|
| 919 | void cpu_set_apic_tpr(CPUX86State *env, uint8_t val);
|
|---|
| 920 | #ifndef NO_CPU_IO_DEFS
|
|---|
| 921 | uint8_t cpu_get_apic_tpr(CPUX86State *env);
|
|---|
| 922 | #endif
|
|---|
| 923 | #ifdef VBOX
|
|---|
| 924 | uint64_t cpu_apic_rdmsr(CPUX86State *env, uint32_t reg);
|
|---|
| 925 | void cpu_apic_wrmsr(CPUX86State *env, uint32_t reg, uint64_t value);
|
|---|
| 926 | #endif
|
|---|
| 927 | void cpu_smm_update(CPUX86State *env);
|
|---|
| 928 |
|
|---|
| 929 | /* will be suppressed */
|
|---|
| 930 | void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0);
|
|---|
| 931 |
|
|---|
| 932 | /* used to debug */
|
|---|
| 933 | #define X86_DUMP_FPU 0x0001 /* dump FPU state too */
|
|---|
| 934 | #define X86_DUMP_CCOP 0x0002 /* dump qemu flag cache */
|
|---|
| 935 |
|
|---|
| 936 | #ifdef USE_KQEMU
|
|---|
| 937 | static inline int cpu_get_time_fast(void)
|
|---|
| 938 | {
|
|---|
| 939 | int low, high;
|
|---|
| 940 | asm volatile("rdtsc" : "=a" (low), "=d" (high));
|
|---|
| 941 | return low;
|
|---|
| 942 | }
|
|---|
| 943 | #endif
|
|---|
| 944 |
|
|---|
| 945 | #ifdef VBOX
|
|---|
| 946 | void cpu_trap_raw(CPUX86State *env1);
|
|---|
| 947 |
|
|---|
| 948 | /* in helper.c */
|
|---|
| 949 | uint8_t read_byte(CPUX86State *env1, target_ulong addr);
|
|---|
| 950 | uint16_t read_word(CPUX86State *env1, target_ulong addr);
|
|---|
| 951 | void write_byte(CPUX86State *env1, target_ulong addr, uint8_t val);
|
|---|
| 952 | uint32_t read_dword(CPUX86State *env1, target_ulong addr);
|
|---|
| 953 | void write_word(CPUX86State *env1, target_ulong addr, uint16_t val);
|
|---|
| 954 | void write_dword(CPUX86State *env1, target_ulong addr, uint32_t val);
|
|---|
| 955 | /* in helper.c */
|
|---|
| 956 | int emulate_single_instr(CPUX86State *env1);
|
|---|
| 957 | int get_ss_esp_from_tss_raw(CPUX86State *env1, uint32_t *ss_ptr, uint32_t *esp_ptr, int dpl);
|
|---|
| 958 |
|
|---|
| 959 | void restore_raw_fp_state(CPUX86State *env, uint8_t *ptr);
|
|---|
| 960 | void save_raw_fp_state(CPUX86State *env, uint8_t *ptr);
|
|---|
| 961 |
|
|---|
| 962 | #endif
|
|---|
| 963 |
|
|---|
| 964 | #define TARGET_PAGE_BITS 12
|
|---|
| 965 |
|
|---|
| 966 | #define CPUState CPUX86State
|
|---|
| 967 | #define cpu_init cpu_x86_init
|
|---|
| 968 | #define cpu_exec cpu_x86_exec
|
|---|
| 969 | #define cpu_gen_code cpu_x86_gen_code
|
|---|
| 970 | #define cpu_signal_handler cpu_x86_signal_handler
|
|---|
| 971 | #define cpu_list x86_cpu_list
|
|---|
| 972 |
|
|---|
| 973 | #define CPU_SAVE_VERSION 7
|
|---|
| 974 |
|
|---|
| 975 | /* MMU modes definitions */
|
|---|
| 976 | #define MMU_MODE0_SUFFIX _kernel
|
|---|
| 977 | #define MMU_MODE1_SUFFIX _user
|
|---|
| 978 | #define MMU_USER_IDX 1
|
|---|
| 979 | #ifndef VBOX
|
|---|
| 980 | static inline int cpu_mmu_index (CPUState *env)
|
|---|
| 981 | #else
|
|---|
| 982 | DECLINLINE(int) cpu_mmu_index (CPUState *env)
|
|---|
| 983 | #endif
|
|---|
| 984 | {
|
|---|
| 985 | return (env->hflags & HF_CPL_MASK) == 3 ? 1 : 0;
|
|---|
| 986 | }
|
|---|
| 987 |
|
|---|
| 988 | void optimize_flags_init(void);
|
|---|
| 989 |
|
|---|
| 990 | typedef struct CCTable {
|
|---|
| 991 | int (*compute_all)(void); /* return all the flags */
|
|---|
| 992 | int (*compute_c)(void); /* return the C flag */
|
|---|
| 993 | } CCTable;
|
|---|
| 994 |
|
|---|
| 995 | extern CCTable cc_table[];
|
|---|
| 996 |
|
|---|
| 997 | #if defined(CONFIG_USER_ONLY)
|
|---|
| 998 | static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
|
|---|
| 999 | {
|
|---|
| 1000 | if (newsp)
|
|---|
| 1001 | env->regs[R_ESP] = newsp;
|
|---|
| 1002 | env->regs[R_EAX] = 0;
|
|---|
| 1003 | }
|
|---|
| 1004 | #endif
|
|---|
| 1005 |
|
|---|
| 1006 | #define CPU_PC_FROM_TB(env, tb) env->eip = tb->pc - tb->cs_base
|
|---|
| 1007 |
|
|---|
| 1008 | #include "cpu-all.h"
|
|---|
| 1009 |
|
|---|
| 1010 | #include "svm.h"
|
|---|
| 1011 |
|
|---|
| 1012 | #endif /* CPU_I386_H */
|
|---|
