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Diffstat (limited to 'target-i386/cpu.h')
| -rw-r--r-- | target-i386/cpu.h | 923 |
1 files changed, 923 insertions, 0 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h new file mode 100644 index 0000000..4e7eb58 --- /dev/null +++ b/target-i386/cpu.h @@ -0,0 +1,923 @@ +/* + * i386 virtual CPU header + * + * Copyright (c) 2003 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + */ +#ifndef CPU_I386_H +#define CPU_I386_H + +#include "config.h" + +#ifdef TARGET_X86_64 +#define TARGET_LONG_BITS 64 +#else +#define TARGET_LONG_BITS 32 +#endif + +/* target supports implicit self modifying code */ +#define TARGET_HAS_SMC +/* support for self modifying code even if the modified instruction is + close to the modifying instruction */ +#define TARGET_HAS_PRECISE_SMC + +#define TARGET_HAS_ICE 1 + +#ifdef TARGET_X86_64 +#define ELF_MACHINE EM_X86_64 +#else +#define ELF_MACHINE EM_386 +#endif + +#define CPUState struct CPUX86State + +#include "cpu-defs.h" + +#include "softfloat.h" + +#define R_EAX 0 +#define R_ECX 1 +#define R_EDX 2 +#define R_EBX 3 +#define R_ESP 4 +#define R_EBP 5 +#define R_ESI 6 +#define R_EDI 7 + +#define R_AL 0 +#define R_CL 1 +#define R_DL 2 +#define R_BL 3 +#define R_AH 4 +#define R_CH 5 +#define R_DH 6 +#define R_BH 7 + +#define R_ES 0 +#define R_CS 1 +#define R_SS 2 +#define R_DS 3 +#define R_FS 4 +#define R_GS 5 + +/* segment descriptor fields */ +#define DESC_G_MASK (1 << 23) +#define DESC_B_SHIFT 22 +#define DESC_B_MASK (1 << DESC_B_SHIFT) +#define DESC_L_SHIFT 21 /* x86_64 only : 64 bit code segment */ +#define DESC_L_MASK (1 << DESC_L_SHIFT) +#define DESC_AVL_MASK (1 << 20) +#define DESC_P_MASK (1 << 15) +#define DESC_DPL_SHIFT 13 +#define DESC_DPL_MASK (3 << DESC_DPL_SHIFT) +#define DESC_S_MASK (1 << 12) +#define DESC_TYPE_SHIFT 8 +#define DESC_TYPE_MASK (15 << DESC_TYPE_SHIFT) +#define DESC_A_MASK (1 << 8) + +#define DESC_CS_MASK (1 << 11) /* 1=code segment 0=data segment */ +#define DESC_C_MASK (1 << 10) /* code: conforming */ +#define DESC_R_MASK (1 << 9) /* code: readable */ + +#define DESC_E_MASK (1 << 10) /* data: expansion direction */ +#define DESC_W_MASK (1 << 9) /* data: writable */ + +#define DESC_TSS_BUSY_MASK (1 << 9) + +/* eflags masks */ +#define CC_C 0x0001 +#define CC_P 0x0004 +#define CC_A 0x0010 +#define CC_Z 0x0040 +#define CC_S 0x0080 +#define CC_O 0x0800 + +#define TF_SHIFT 8 +#define IOPL_SHIFT 12 +#define VM_SHIFT 17 + +#define TF_MASK 0x00000100 +#define IF_MASK 0x00000200 +#define DF_MASK 0x00000400 +#define IOPL_MASK 0x00003000 +#define NT_MASK 0x00004000 +#define RF_MASK 0x00010000 +#define VM_MASK 0x00020000 +#define AC_MASK 0x00040000 +#define VIF_MASK 0x00080000 +#define VIP_MASK 0x00100000 +#define ID_MASK 0x00200000 + +/* hidden flags - used internally by qemu to represent additional cpu + states. Only the CPL, INHIBIT_IRQ, SMM and SVMI are not + redundant. We avoid using the IOPL_MASK, TF_MASK and VM_MASK bit + position to ease oring with eflags. */ +/* current cpl */ +#define HF_CPL_SHIFT 0 +/* true if soft mmu is being used */ +#define HF_SOFTMMU_SHIFT 2 +/* true if hardware interrupts must be disabled for next instruction */ +#define HF_INHIBIT_IRQ_SHIFT 3 +/* 16 or 32 segments */ +#define HF_CS32_SHIFT 4 +#define HF_SS32_SHIFT 5 +/* zero base for DS, ES and SS : can be '0' only in 32 bit CS segment */ +#define HF_ADDSEG_SHIFT 6 +/* copy of CR0.PE (protected mode) */ +#define HF_PE_SHIFT 7 +#define HF_TF_SHIFT 8 /* must be same as eflags */ +#define HF_MP_SHIFT 9 /* the order must be MP, EM, TS */ +#define HF_EM_SHIFT 10 +#define HF_TS_SHIFT 11 +#define HF_IOPL_SHIFT 12 /* must be same as eflags */ +#define HF_LMA_SHIFT 14 /* only used on x86_64: long mode active */ +#define HF_CS64_SHIFT 15 /* only used on x86_64: 64 bit code segment */ +#define HF_RF_SHIFT 16 /* must be same as eflags */ +#define HF_VM_SHIFT 17 /* must be same as eflags */ +#define HF_SMM_SHIFT 19 /* CPU in SMM mode */ +#define HF_SVME_SHIFT 20 /* SVME enabled (copy of EFER.SVME) */ +#define HF_SVMI_SHIFT 21 /* SVM intercepts are active */ +#define HF_OSFXSR_SHIFT 22 /* CR4.OSFXSR */ + +#define HF_CPL_MASK (3 << HF_CPL_SHIFT) +#define HF_SOFTMMU_MASK (1 << HF_SOFTMMU_SHIFT) +#define HF_INHIBIT_IRQ_MASK (1 << HF_INHIBIT_IRQ_SHIFT) +#define HF_CS32_MASK (1 << HF_CS32_SHIFT) +#define HF_SS32_MASK (1 << HF_SS32_SHIFT) +#define HF_ADDSEG_MASK (1 << HF_ADDSEG_SHIFT) +#define HF_PE_MASK (1 << HF_PE_SHIFT) +#define HF_TF_MASK (1 << HF_TF_SHIFT) +#define HF_MP_MASK (1 << HF_MP_SHIFT) +#define HF_EM_MASK (1 << HF_EM_SHIFT) +#define HF_TS_MASK (1 << HF_TS_SHIFT) +#define HF_IOPL_MASK (3 << HF_IOPL_SHIFT) +#define HF_LMA_MASK (1 << HF_LMA_SHIFT) +#define HF_CS64_MASK (1 << HF_CS64_SHIFT) +#define HF_RF_MASK (1 << HF_RF_SHIFT) +#define HF_VM_MASK (1 << HF_VM_SHIFT) +#define HF_SMM_MASK (1 << HF_SMM_SHIFT) +#define HF_SVME_MASK (1 << HF_SVME_SHIFT) +#define HF_SVMI_MASK (1 << HF_SVMI_SHIFT) +#define HF_OSFXSR_MASK (1 << HF_OSFXSR_SHIFT) + +/* hflags2 */ + +#define HF2_GIF_SHIFT 0 /* if set CPU takes interrupts */ +#define HF2_HIF_SHIFT 1 /* value of IF_MASK when entering SVM */ +#define HF2_NMI_SHIFT 2 /* CPU serving NMI */ +#define HF2_VINTR_SHIFT 3 /* value of V_INTR_MASKING bit */ + +#define HF2_GIF_MASK (1 << HF2_GIF_SHIFT) +#define HF2_HIF_MASK (1 << HF2_HIF_SHIFT) +#define HF2_NMI_MASK (1 << HF2_NMI_SHIFT) +#define HF2_VINTR_MASK (1 << HF2_VINTR_SHIFT) + +#define CR0_PE_SHIFT 0 +#define CR0_MP_SHIFT 1 + +#define CR0_PE_MASK (1 << 0) +#define CR0_MP_MASK (1 << 1) +#define CR0_EM_MASK (1 << 2) +#define CR0_TS_MASK (1 << 3) +#define CR0_ET_MASK (1 << 4) +#define CR0_NE_MASK (1 << 5) +#define CR0_WP_MASK (1 << 16) +#define CR0_AM_MASK (1 << 18) +#define CR0_PG_MASK (1 << 31) + +#define CR4_VME_MASK (1 << 0) +#define CR4_PVI_MASK (1 << 1) +#define CR4_TSD_MASK (1 << 2) +#define CR4_DE_MASK (1 << 3) +#define CR4_PSE_MASK (1 << 4) +#define CR4_PAE_MASK (1 << 5) +#define CR4_MCE_MASK (1 << 6) +#define CR4_PGE_MASK (1 << 7) +#define CR4_PCE_MASK (1 << 8) +#define CR4_OSFXSR_SHIFT 9 +#define CR4_OSFXSR_MASK (1 << CR4_OSFXSR_SHIFT) +#define CR4_OSXMMEXCPT_MASK (1 << 10) + +#define DR6_BD (1 << 13) +#define DR6_BS (1 << 14) +#define DR6_BT (1 << 15) +#define DR6_FIXED_1 0xffff0ff0 + +#define DR7_GD (1 << 13) +#define DR7_TYPE_SHIFT 16 +#define DR7_LEN_SHIFT 18 +#define DR7_FIXED_1 0x00000400 + +#define PG_PRESENT_BIT 0 +#define PG_RW_BIT 1 +#define PG_USER_BIT 2 +#define PG_PWT_BIT 3 +#define PG_PCD_BIT 4 +#define PG_ACCESSED_BIT 5 +#define PG_DIRTY_BIT 6 +#define PG_PSE_BIT 7 +#define PG_GLOBAL_BIT 8 +#define PG_NX_BIT 63 + +#define PG_PRESENT_MASK (1 << PG_PRESENT_BIT) +#define PG_RW_MASK (1 << PG_RW_BIT) +#define PG_USER_MASK (1 << PG_USER_BIT) +#define PG_PWT_MASK (1 << PG_PWT_BIT) +#define PG_PCD_MASK (1 << PG_PCD_BIT) +#define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT) +#define PG_DIRTY_MASK (1 << PG_DIRTY_BIT) +#define PG_PSE_MASK (1 << PG_PSE_BIT) +#define PG_GLOBAL_MASK (1 << PG_GLOBAL_BIT) +#define PG_NX_MASK (1LL << PG_NX_BIT) + +#define PG_ERROR_W_BIT 1 + +#define PG_ERROR_P_MASK 0x01 +#define PG_ERROR_W_MASK (1 << PG_ERROR_W_BIT) +#define PG_ERROR_U_MASK 0x04 +#define PG_ERROR_RSVD_MASK 0x08 +#define PG_ERROR_I_D_MASK 0x10 + +#define MCG_CTL_P (1UL<<8) /* MCG_CAP register available */ + +#define MCE_CAP_DEF MCG_CTL_P +#define MCE_BANKS_DEF 10 + +#define MCG_STATUS_MCIP (1UL<<2) /* machine check in progress */ + +#define MCI_STATUS_VAL (1UL<<63) /* valid error */ +#define MCI_STATUS_OVER (1UL<<62) /* previous errors lost */ +#define MCI_STATUS_UC (1UL<<61) /* uncorrected error */ + +#define MSR_IA32_TSC 0x10 +#define MSR_IA32_APICBASE 0x1b +#define MSR_IA32_APICBASE_BSP (1<<8) +#define MSR_IA32_APICBASE_ENABLE (1<<11) +#define MSR_IA32_APICBASE_BASE (0xfffff<<12) + +#define MSR_MTRRcap 0xfe +#define MSR_MTRRcap_VCNT 8 +#define MSR_MTRRcap_FIXRANGE_SUPPORT (1 << 8) +#define MSR_MTRRcap_WC_SUPPORTED (1 << 10) + +#define MSR_IA32_SYSENTER_CS 0x174 +#define MSR_IA32_SYSENTER_ESP 0x175 +#define MSR_IA32_SYSENTER_EIP 0x176 + +#define MSR_MCG_CAP 0x179 +#define MSR_MCG_STATUS 0x17a +#define MSR_MCG_CTL 0x17b + +#define MSR_IA32_PERF_STATUS 0x198 + +#define MSR_MTRRphysBase(reg) (0x200 + 2 * (reg)) +#define MSR_MTRRphysMask(reg) (0x200 + 2 * (reg) + 1) + +#define MSR_MTRRfix64K_00000 0x250 +#define MSR_MTRRfix16K_80000 0x258 +#define MSR_MTRRfix16K_A0000 0x259 +#define MSR_MTRRfix4K_C0000 0x268 +#define MSR_MTRRfix4K_C8000 0x269 +#define MSR_MTRRfix4K_D0000 0x26a +#define MSR_MTRRfix4K_D8000 0x26b +#define MSR_MTRRfix4K_E0000 0x26c +#define MSR_MTRRfix4K_E8000 0x26d +#define MSR_MTRRfix4K_F0000 0x26e +#define MSR_MTRRfix4K_F8000 0x26f + +#define MSR_PAT 0x277 + +#define MSR_MTRRdefType 0x2ff + +#define MSR_MC0_CTL 0x400 +#define MSR_MC0_STATUS 0x401 +#define MSR_MC0_ADDR 0x402 +#define MSR_MC0_MISC 0x403 + +#define MSR_EFER 0xc0000080 + +#define MSR_EFER_SCE (1 << 0) +#define MSR_EFER_LME (1 << 8) +#define MSR_EFER_LMA (1 << 10) +#define MSR_EFER_NXE (1 << 11) +#define MSR_EFER_SVME (1 << 12) +#define MSR_EFER_FFXSR (1 << 14) + +#define MSR_STAR 0xc0000081 +#define MSR_LSTAR 0xc0000082 +#define MSR_CSTAR 0xc0000083 +#define MSR_FMASK 0xc0000084 +#define MSR_FSBASE 0xc0000100 +#define MSR_GSBASE 0xc0000101 +#define MSR_KERNELGSBASE 0xc0000102 + +#define MSR_VM_HSAVE_PA 0xc0010117 + +/* cpuid_features bits */ +#define CPUID_FP87 (1 << 0) +#define CPUID_VME (1 << 1) +#define CPUID_DE (1 << 2) +#define CPUID_PSE (1 << 3) +#define CPUID_TSC (1 << 4) +#define CPUID_MSR (1 << 5) +#define CPUID_PAE (1 << 6) +#define CPUID_MCE (1 << 7) +#define CPUID_CX8 (1 << 8) +#define CPUID_APIC (1 << 9) +#define CPUID_SEP (1 << 11) /* sysenter/sysexit */ +#define CPUID_MTRR (1 << 12) +#define CPUID_PGE (1 << 13) +#define CPUID_MCA (1 << 14) +#define CPUID_CMOV (1 << 15) +#define CPUID_PAT (1 << 16) +#define CPUID_PSE36 (1 << 17) +#define CPUID_PN (1 << 18) +#define CPUID_CLFLUSH (1 << 19) +#define CPUID_DTS (1 << 21) +#define CPUID_ACPI (1 << 22) +#define CPUID_MMX (1 << 23) +#define CPUID_FXSR (1 << 24) +#define CPUID_SSE (1 << 25) +#define CPUID_SSE2 (1 << 26) +#define CPUID_SS (1 << 27) +#define CPUID_HT (1 << 28) +#define CPUID_TM (1 << 29) +#define CPUID_IA64 (1 << 30) +#define CPUID_PBE (1 << 31) + +#define CPUID_EXT_SSE3 (1 << 0) +#define CPUID_EXT_DTES64 (1 << 2) +#define CPUID_EXT_MONITOR (1 << 3) +#define CPUID_EXT_DSCPL (1 << 4) +#define CPUID_EXT_VMX (1 << 5) +#define CPUID_EXT_SMX (1 << 6) +#define CPUID_EXT_EST (1 << 7) +#define CPUID_EXT_TM2 (1 << 8) +#define CPUID_EXT_SSSE3 (1 << 9) +#define CPUID_EXT_CID (1 << 10) +#define CPUID_EXT_CX16 (1 << 13) +#define CPUID_EXT_XTPR (1 << 14) +#define CPUID_EXT_PDCM (1 << 15) +#define CPUID_EXT_DCA (1 << 18) +#define CPUID_EXT_SSE41 (1 << 19) +#define CPUID_EXT_SSE42 (1 << 20) +#define CPUID_EXT_X2APIC (1 << 21) +#define CPUID_EXT_MOVBE (1 << 22) +#define CPUID_EXT_POPCNT (1 << 23) +#define CPUID_EXT_XSAVE (1 << 26) +#define CPUID_EXT_OSXSAVE (1 << 27) + +#define CPUID_EXT2_SYSCALL (1 << 11) +#define CPUID_EXT2_MP (1 << 19) +#define CPUID_EXT2_NX (1 << 20) +#define CPUID_EXT2_MMXEXT (1 << 22) +#define CPUID_EXT2_FFXSR (1 << 25) +#define CPUID_EXT2_PDPE1GB (1 << 26) +#define CPUID_EXT2_RDTSCP (1 << 27) +#define CPUID_EXT2_LM (1 << 29) +#define CPUID_EXT2_3DNOWEXT (1 << 30) +#define CPUID_EXT2_3DNOW (1 << 31) + +#define CPUID_EXT3_LAHF_LM (1 << 0) +#define CPUID_EXT3_CMP_LEG (1 << 1) +#define CPUID_EXT3_SVM (1 << 2) +#define CPUID_EXT3_EXTAPIC (1 << 3) +#define CPUID_EXT3_CR8LEG (1 << 4) +#define CPUID_EXT3_ABM (1 << 5) +#define CPUID_EXT3_SSE4A (1 << 6) +#define CPUID_EXT3_MISALIGNSSE (1 << 7) +#define CPUID_EXT3_3DNOWPREFETCH (1 << 8) +#define CPUID_EXT3_OSVW (1 << 9) +#define CPUID_EXT3_IBS (1 << 10) +#define CPUID_EXT3_SKINIT (1 << 12) + +#define CPUID_VENDOR_INTEL_1 0x756e6547 /* "Genu" */ +#define CPUID_VENDOR_INTEL_2 0x49656e69 /* "ineI" */ +#define CPUID_VENDOR_INTEL_3 0x6c65746e /* "ntel" */ + +#define CPUID_VENDOR_AMD_1 0x68747541 /* "Auth" */ +#define CPUID_VENDOR_AMD_2 0x69746e65 /* "enti" */ +#define CPUID_VENDOR_AMD_3 0x444d4163 /* "cAMD" */ + +#define CPUID_MWAIT_IBE (1 << 1) /* Interrupts can exit capability */ +#define CPUID_MWAIT_EMX (1 << 0) /* enumeration supported */ + +#define EXCP00_DIVZ 0 +#define EXCP01_DB 1 +#define EXCP02_NMI 2 +#define EXCP03_INT3 3 +#define EXCP04_INTO 4 +#define EXCP05_BOUND 5 +#define EXCP06_ILLOP 6 +#define EXCP07_PREX 7 +#define EXCP08_DBLE 8 +#define EXCP09_XERR 9 +#define EXCP0A_TSS 10 +#define EXCP0B_NOSEG 11 +#define EXCP0C_STACK 12 +#define EXCP0D_GPF 13 +#define EXCP0E_PAGE 14 +#define EXCP10_COPR 16 +#define EXCP11_ALGN 17 +#define EXCP12_MCHK 18 + +#define EXCP_SYSCALL 0x100 /* only happens in user only emulation + for syscall instruction */ + +enum { + CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */ + CC_OP_EFLAGS, /* all cc are explicitly computed, CC_SRC = flags */ + + CC_OP_MULB, /* modify all flags, C, O = (CC_SRC != 0) */ + CC_OP_MULW, + CC_OP_MULL, + CC_OP_MULQ, + + CC_OP_ADDB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ + CC_OP_ADDW, + CC_OP_ADDL, + CC_OP_ADDQ, + + CC_OP_ADCB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ + CC_OP_ADCW, + CC_OP_ADCL, + CC_OP_ADCQ, + + CC_OP_SUBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ + CC_OP_SUBW, + CC_OP_SUBL, + CC_OP_SUBQ, + + CC_OP_SBBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ + CC_OP_SBBW, + CC_OP_SBBL, + CC_OP_SBBQ, + + CC_OP_LOGICB, /* modify all flags, CC_DST = res */ + CC_OP_LOGICW, + CC_OP_LOGICL, + CC_OP_LOGICQ, + + CC_OP_INCB, /* modify all flags except, CC_DST = res, CC_SRC = C */ + CC_OP_INCW, + CC_OP_INCL, + CC_OP_INCQ, + + CC_OP_DECB, /* modify all flags except, CC_DST = res, CC_SRC = C */ + CC_OP_DECW, + CC_OP_DECL, + CC_OP_DECQ, + + CC_OP_SHLB, /* modify all flags, CC_DST = res, CC_SRC.msb = C */ + CC_OP_SHLW, + CC_OP_SHLL, + CC_OP_SHLQ, + + CC_OP_SARB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */ + CC_OP_SARW, + CC_OP_SARL, + CC_OP_SARQ, + + CC_OP_NB, +}; + +#ifdef FLOATX80 +#define USE_X86LDOUBLE +#endif + +#ifdef USE_X86LDOUBLE +typedef floatx80 CPU86_LDouble; +#else +typedef float64 CPU86_LDouble; +#endif + +typedef struct SegmentCache { + uint32_t selector; + target_ulong base; + uint32_t limit; + uint32_t flags; +} SegmentCache; + +typedef union { + uint8_t _b[16]; + uint16_t _w[8]; + uint32_t _l[4]; + uint64_t _q[2]; + float32 _s[4]; + float64 _d[2]; +} XMMReg; + +typedef union { + uint8_t _b[8]; + uint16_t _w[4]; + uint32_t _l[2]; + float32 _s[2]; + uint64_t q; +} MMXReg; + +#ifdef WORDS_BIGENDIAN +#define XMM_B(n) _b[15 - (n)] +#define XMM_W(n) _w[7 - (n)] +#define XMM_L(n) _l[3 - (n)] +#define XMM_S(n) _s[3 - (n)] +#define XMM_Q(n) _q[1 - (n)] +#define XMM_D(n) _d[1 - (n)] + +#define MMX_B(n) _b[7 - (n)] +#define MMX_W(n) _w[3 - (n)] +#define MMX_L(n) _l[1 - (n)] +#define MMX_S(n) _s[1 - (n)] +#else +#define XMM_B(n) _b[n] +#define XMM_W(n) _w[n] +#define XMM_L(n) _l[n] +#define XMM_S(n) _s[n] +#define XMM_Q(n) _q[n] +#define XMM_D(n) _d[n] + +#define MMX_B(n) _b[n] +#define MMX_W(n) _w[n] +#define MMX_L(n) _l[n] +#define MMX_S(n) _s[n] +#endif +#define MMX_Q(n) q + +#ifdef TARGET_X86_64 +#define CPU_NB_REGS 16 +#else +#define CPU_NB_REGS 8 +#endif + +#define NB_MMU_MODES 2 + +typedef struct CPUX86State { + /* standard registers */ + target_ulong regs[CPU_NB_REGS]; + target_ulong eip; + target_ulong eflags; /* eflags register. During CPU emulation, CC + flags and DF are set to zero because they are + stored elsewhere */ + + /* emulator internal eflags handling */ + target_ulong cc_src; + target_ulong cc_dst; + uint32_t cc_op; + int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */ + uint32_t hflags; /* TB flags, see HF_xxx constants. These flags + are known at translation time. */ + uint32_t hflags2; /* various other flags, see HF2_xxx constants. */ + + /* segments */ + SegmentCache segs[6]; /* selector values */ + SegmentCache ldt; + SegmentCache tr; + SegmentCache gdt; /* only base and limit are used */ + SegmentCache idt; /* only base and limit are used */ + + target_ulong cr[5]; /* NOTE: cr1 is unused */ + uint64_t a20_mask; + + /* FPU state */ + unsigned int fpstt; /* top of stack index */ + unsigned int fpus; + unsigned int fpuc; + uint8_t fptags[8]; /* 0 = valid, 1 = empty */ + union { +#ifdef USE_X86LDOUBLE + CPU86_LDouble d __attribute__((aligned(16))); +#else + CPU86_LDouble d; +#endif + MMXReg mmx; + } fpregs[8]; + + /* emulator internal variables */ + float_status fp_status; + CPU86_LDouble ft0; + + float_status mmx_status; /* for 3DNow! float ops */ + float_status sse_status; + uint32_t mxcsr; + XMMReg xmm_regs[CPU_NB_REGS]; + XMMReg xmm_t0; + MMXReg mmx_t0; + target_ulong cc_tmp; /* temporary for rcr/rcl */ + + /* sysenter registers */ + uint32_t sysenter_cs; + target_ulong sysenter_esp; + target_ulong sysenter_eip; + uint64_t efer; + uint64_t star; + + uint64_t vm_hsave; + uint64_t vm_vmcb; + uint64_t tsc_offset; + uint64_t intercept; + uint16_t intercept_cr_read; + uint16_t intercept_cr_write; + uint16_t intercept_dr_read; + uint16_t intercept_dr_write; + uint32_t intercept_exceptions; + uint8_t v_tpr; + +#ifdef TARGET_X86_64 + target_ulong lstar; + target_ulong cstar; + target_ulong fmask; + target_ulong kernelgsbase; +#endif + + uint64_t tsc; + + uint64_t pat; + + /* exception/interrupt handling */ + int error_code; + int exception_is_int; + target_ulong exception_next_eip; + target_ulong dr[8]; /* debug registers */ + union { + CPUBreakpoint *cpu_breakpoint[4]; + CPUWatchpoint *cpu_watchpoint[4]; + }; /* break/watchpoints for dr[0..3] */ + uint32_t smbase; + int old_exception; /* exception in flight */ + + CPU_COMMON + + /* processor features (e.g. for CPUID insn) */ + uint32_t cpuid_level; + uint32_t cpuid_vendor1; + uint32_t cpuid_vendor2; + uint32_t cpuid_vendor3; + uint32_t cpuid_version; + uint32_t cpuid_features; + uint32_t cpuid_ext_features; + uint32_t cpuid_xlevel; + uint32_t cpuid_model[12]; + uint32_t cpuid_ext2_features; + uint32_t cpuid_ext3_features; + uint32_t cpuid_apic_id; + int cpuid_vendor_override; + + /* MTRRs */ + uint64_t mtrr_fixed[11]; + uint64_t mtrr_deftype; + struct { + uint64_t base; + uint64_t mask; + } mtrr_var[8]; + +#ifdef CONFIG_KQEMU + int kqemu_enabled; + int last_io_time; +#endif + + /* For KVM */ + uint64_t interrupt_bitmap[256 / 64]; + uint32_t mp_state; + + /* in order to simplify APIC support, we leave this pointer to the + user */ + struct APICState *apic_state; + + uint64 mcg_cap; + uint64 mcg_status; + uint64 mcg_ctl; + uint64 *mce_banks; +} CPUX86State; + +CPUX86State *cpu_x86_init(const char *cpu_model); +int cpu_x86_exec(CPUX86State *s); +void cpu_x86_close(CPUX86State *s); +void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, + ...)); +int cpu_get_pic_interrupt(CPUX86State *s); +/* MSDOS compatibility mode FPU exception support */ +void cpu_set_ferr(CPUX86State *s); + +/* this function must always be used to load data in the segment + cache: it synchronizes the hflags with the segment cache values */ +static inline void cpu_x86_load_seg_cache(CPUX86State *env, + int seg_reg, unsigned int selector, + target_ulong base, + unsigned int limit, + unsigned int flags) +{ + SegmentCache *sc; + unsigned int new_hflags; + + sc = &env->segs[seg_reg]; + sc->selector = selector; + sc->base = base; + sc->limit = limit; + sc->flags = flags; + + /* update the hidden flags */ + { + if (seg_reg == R_CS) { +#ifdef TARGET_X86_64 + if ((env->hflags & HF_LMA_MASK) && (flags & DESC_L_MASK)) { + /* long mode */ + env->hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK; + env->hflags &= ~(HF_ADDSEG_MASK); + } else +#endif + { + /* legacy / compatibility case */ + new_hflags = (env->segs[R_CS].flags & DESC_B_MASK) + >> (DESC_B_SHIFT - HF_CS32_SHIFT); + env->hflags = (env->hflags & ~(HF_CS32_MASK | HF_CS64_MASK)) | + new_hflags; + } + } + new_hflags = (env->segs[R_SS].flags & DESC_B_MASK) + >> (DESC_B_SHIFT - HF_SS32_SHIFT); + if (env->hflags & HF_CS64_MASK) { + /* zero base assumed for DS, ES and SS in long mode */ + } else if (!(env->cr[0] & CR0_PE_MASK) || + (env->eflags & VM_MASK) || + !(env->hflags & HF_CS32_MASK)) { + /* XXX: try to avoid this test. The problem comes from the + fact that is real mode or vm86 mode we only modify the + 'base' and 'selector' fields of the segment cache to go + faster. A solution may be to force addseg to one in + translate-i386.c. */ + new_hflags |= HF_ADDSEG_MASK; + } else { + new_hflags |= ((env->segs[R_DS].base | + env->segs[R_ES].base | + env->segs[R_SS].base) != 0) << + HF_ADDSEG_SHIFT; + } + env->hflags = (env->hflags & + ~(HF_SS32_MASK | HF_ADDSEG_MASK)) | new_hflags; + } +} + +/* wrapper, just in case memory mappings must be changed */ +static inline void cpu_x86_set_cpl(CPUX86State *s, int cpl) +{ +#if HF_CPL_MASK == 3 + s->hflags = (s->hflags & ~HF_CPL_MASK) | cpl; +#else +#error HF_CPL_MASK is hardcoded +#endif +} + +/* op_helper.c */ +/* used for debug or cpu save/restore */ +void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, CPU86_LDouble f); +CPU86_LDouble cpu_set_fp80(uint64_t mant, uint16_t upper); + +/* cpu-exec.c */ +/* the following helpers are only usable in user mode simulation as + they can trigger unexpected exceptions */ +void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector); +void cpu_x86_fsave(CPUX86State *s, target_ulong ptr, int data32); +void cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32); + +/* you can call this signal handler from your SIGBUS and SIGSEGV + signal handlers to inform the virtual CPU of exceptions. non zero + is returned if the signal was handled by the virtual CPU. */ +int cpu_x86_signal_handler(int host_signum, void *pinfo, + void *puc); + +/* helper.c */ +int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr, + int is_write, int mmu_idx, int is_softmmu); +void cpu_x86_set_a20(CPUX86State *env, int a20_state); +void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, + uint32_t *eax, uint32_t *ebx, + uint32_t *ecx, uint32_t *edx); + +static inline int hw_breakpoint_enabled(unsigned long dr7, int index) +{ + return (dr7 >> (index * 2)) & 3; +} + +static inline int hw_breakpoint_type(unsigned long dr7, int index) +{ + return (dr7 >> (DR7_TYPE_SHIFT + (index * 2))) & 3; +} + +static inline int hw_breakpoint_len(unsigned long dr7, int index) +{ + int len = ((dr7 >> (DR7_LEN_SHIFT + (index * 2))) & 3); + return (len == 2) ? 8 : len + 1; +} + +void hw_breakpoint_insert(CPUX86State *env, int index); +void hw_breakpoint_remove(CPUX86State *env, int index); +int check_hw_breakpoints(CPUX86State *env, int force_dr6_update); + +/* will be suppressed */ +void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0); +void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3); +void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4); + +/* hw/apic.c */ +void cpu_set_apic_base(CPUX86State *env, uint64_t val); +uint64_t cpu_get_apic_base(CPUX86State *env); +void cpu_set_apic_tpr(CPUX86State *env, uint8_t val); +#ifndef NO_CPU_IO_DEFS +uint8_t cpu_get_apic_tpr(CPUX86State *env); +#endif + +/* hw/pc.c */ +void cpu_smm_update(CPUX86State *env); +uint64_t cpu_get_tsc(CPUX86State *env); + +/* used to debug */ +#define X86_DUMP_FPU 0x0001 /* dump FPU state too */ +#define X86_DUMP_CCOP 0x0002 /* dump qemu flag cache */ + +#ifdef CONFIG_KQEMU +static inline int cpu_get_time_fast(void) +{ + int low, high; + asm volatile("rdtsc" : "=a" (low), "=d" (high)); + return low; +} +#endif + +#define TARGET_PAGE_BITS 12 + +#define cpu_init cpu_x86_init +#define cpu_exec cpu_x86_exec +#define cpu_gen_code cpu_x86_gen_code +#define cpu_signal_handler cpu_x86_signal_handler +#define cpu_list x86_cpu_list + +#define CPU_SAVE_VERSION 10 + +/* MMU modes definitions */ +#define MMU_MODE0_SUFFIX _kernel +#define MMU_MODE1_SUFFIX _user +#define MMU_USER_IDX 1 +static inline int cpu_mmu_index (CPUState *env) +{ + return (env->hflags & HF_CPL_MASK) == 3 ? 1 : 0; +} + +/* translate.c */ +void optimize_flags_init(void); + +typedef struct CCTable { + int (*compute_all)(void); /* return all the flags */ + int (*compute_c)(void); /* return the C flag */ +} CCTable; + +/* XXX not defined yet. Should be fixed */ +static inline int is_cpu_user(CPUState *env) +{ + return 0; +} + +#if defined(CONFIG_USER_ONLY) +static inline void cpu_clone_regs(CPUState *env, target_ulong newsp) +{ + if (newsp) + env->regs[R_ESP] = newsp; + env->regs[R_EAX] = 0; +} +#endif + +#include "cpu-all.h" +#include "exec-all.h" + +#include "svm.h" + +static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb) +{ + env->eip = tb->pc - tb->cs_base; +} + +static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc, + target_ulong *cs_base, int *flags) +{ + *cs_base = env->segs[R_CS].base; + *pc = *cs_base + env->eip; + *flags = env->hflags | + (env->eflags & (IOPL_MASK | TF_MASK | RF_MASK | VM_MASK)); +} + +void apic_init_reset(CPUState *env); +void apic_sipi(CPUState *env); +void do_cpu_init(CPUState *env); +void do_cpu_sipi(CPUState *env); +#endif /* CPU_I386_H */ |