From c97d6d2cdf97edb4aebe832fdba65d701ad7bcb6 Mon Sep 17 00:00:00 2001 From: Sergio Andres Gomez Del Real Date: Wed, 13 Sep 2017 04:05:09 -0500 Subject: i386: hvf: add code base from Google's QEMU repository This file begins tracking the files that will be the code base for HVF support in QEMU. This code base is part of Google's QEMU version of their Android emulator, and can be found at https://android.googlesource.com/platform/external/qemu/+/emu-master-dev This code is based on Veertu Inc's vdhh (Veertu Desktop Hosted Hypervisor), found at https://github.com/veertuinc/vdhh. Everything is appropriately licensed under GPL v2-or-later, except for the code inside x86_task.c and x86_task.h, which, deriving from KVM (the Linux kernel), is licensed GPL v2-only. This code base already implements a very great deal of functionality, although Google's version removed from Vertuu's the support for APIC page and hyperv-related stuff. According to the Android Emulator Release Notes, Revision 26.1.3 (August 2017), "Hypervisor.framework is now enabled by default on macOS for 32-bit x86 images to improve performance and macOS compatibility", although we better use with caution for, as the same Revision warns us, "If you experience issues with it specifically, please file a bug report...". The code hasn't seen much update in the last 5 months, so I think that we can further develop the code with occasional visiting Google's repository to see if there has been any update. On top of Google's code, the following changes were made: - add code to the configure script to support the --enable-hvf argument. If the OS is Darwin, it checks for presence of HVF in the system. The patch also adds strings related to HVF in the file qemu-options.hx. QEMU will only support the modern syntax style '-M accel=hvf' no enable hvf; the legacy '-enable-hvf' will not be supported. - fix styling issues - add glue code to cpus.c - move HVFX86EmulatorState field to CPUX86State, changing the the emulation functions to have a parameter with signature 'CPUX86State *' instead of 'CPUState *' so we don't have to get the 'env'. Signed-off-by: Sergio Andres Gomez Del Real Message-Id: <20170913090522.4022-2-Sergio.G.DelReal@gmail.com> Message-Id: <20170913090522.4022-3-Sergio.G.DelReal@gmail.com> Message-Id: <20170913090522.4022-5-Sergio.G.DelReal@gmail.com> Message-Id: <20170913090522.4022-6-Sergio.G.DelReal@gmail.com> Message-Id: <20170905035457.3753-7-Sergio.G.DelReal@gmail.com> Signed-off-by: Paolo Bonzini --- target/i386/hvf-utils/x86_decode.h | 325 +++++++++++++++++++++++++++++++++++++ 1 file changed, 325 insertions(+) create mode 100644 target/i386/hvf-utils/x86_decode.h (limited to 'target/i386/hvf-utils/x86_decode.h') diff --git a/target/i386/hvf-utils/x86_decode.h b/target/i386/hvf-utils/x86_decode.h new file mode 100644 index 0000000000..540e95d17d --- /dev/null +++ b/target/i386/hvf-utils/x86_decode.h @@ -0,0 +1,325 @@ +/* + * Copyright (C) 2016 Veertu Inc, + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 or + * (at your option) version 3 of the License. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#pragma once + +#include +#include +#include +#include +#include "qemu-common.h" +#include "x86.h" +#include "cpu.h" + +typedef enum x86_prefix { + /* group 1 */ + PREFIX_LOCK = 0xf0, + PREFIX_REPN = 0xf2, + PREFIX_REP = 0xf3, + /* group 2 */ + PREFIX_CS_SEG_OVEERIDE = 0x2e, + PREFIX_SS_SEG_OVEERIDE = 0x36, + PREFIX_DS_SEG_OVEERIDE = 0x3e, + PREFIX_ES_SEG_OVEERIDE = 0x26, + PREFIX_FS_SEG_OVEERIDE = 0x64, + PREFIX_GS_SEG_OVEERIDE = 0x65, + /* group 3 */ + PREFIX_OP_SIZE_OVERRIDE = 0x66, + /* group 4 */ + PREFIX_ADDR_SIZE_OVERRIDE = 0x67, + + PREFIX_REX = 0x40, +} x86_prefix; + +enum x86_decode_cmd { + X86_DECODE_CMD_INVL = 0, + + X86_DECODE_CMD_PUSH, + X86_DECODE_CMD_PUSH_SEG, + X86_DECODE_CMD_POP, + X86_DECODE_CMD_POP_SEG, + X86_DECODE_CMD_MOV, + X86_DECODE_CMD_MOVSX, + X86_DECODE_CMD_MOVZX, + X86_DECODE_CMD_CALL_NEAR, + X86_DECODE_CMD_CALL_NEAR_ABS_INDIRECT, + X86_DECODE_CMD_CALL_FAR_ABS_INDIRECT, + X86_DECODE_CMD_CALL_FAR, + X86_DECODE_RET_NEAR, + X86_DECODE_RET_FAR, + X86_DECODE_CMD_ADD, + X86_DECODE_CMD_OR, + X86_DECODE_CMD_ADC, + X86_DECODE_CMD_SBB, + X86_DECODE_CMD_AND, + X86_DECODE_CMD_SUB, + X86_DECODE_CMD_XOR, + X86_DECODE_CMD_CMP, + X86_DECODE_CMD_INC, + X86_DECODE_CMD_DEC, + X86_DECODE_CMD_TST, + X86_DECODE_CMD_NOT, + X86_DECODE_CMD_NEG, + X86_DECODE_CMD_JMP_NEAR, + X86_DECODE_CMD_JMP_NEAR_ABS_INDIRECT, + X86_DECODE_CMD_JMP_FAR, + X86_DECODE_CMD_JMP_FAR_ABS_INDIRECT, + X86_DECODE_CMD_LEA, + X86_DECODE_CMD_JXX, + X86_DECODE_CMD_JCXZ, + X86_DECODE_CMD_SETXX, + X86_DECODE_CMD_MOV_TO_SEG, + X86_DECODE_CMD_MOV_FROM_SEG, + X86_DECODE_CMD_CLI, + X86_DECODE_CMD_STI, + X86_DECODE_CMD_CLD, + X86_DECODE_CMD_STD, + X86_DECODE_CMD_STC, + X86_DECODE_CMD_CLC, + X86_DECODE_CMD_OUT, + X86_DECODE_CMD_IN, + X86_DECODE_CMD_INS, + X86_DECODE_CMD_OUTS, + X86_DECODE_CMD_LIDT, + X86_DECODE_CMD_SIDT, + X86_DECODE_CMD_LGDT, + X86_DECODE_CMD_SGDT, + X86_DECODE_CMD_SMSW, + X86_DECODE_CMD_LMSW, + X86_DECODE_CMD_RDTSCP, + X86_DECODE_CMD_INVLPG, + X86_DECODE_CMD_MOV_TO_CR, + X86_DECODE_CMD_MOV_FROM_CR, + X86_DECODE_CMD_MOV_TO_DR, + X86_DECODE_CMD_MOV_FROM_DR, + X86_DECODE_CMD_PUSHF, + X86_DECODE_CMD_POPF, + X86_DECODE_CMD_CPUID, + X86_DECODE_CMD_ROL, + X86_DECODE_CMD_ROR, + X86_DECODE_CMD_RCL, + X86_DECODE_CMD_RCR, + X86_DECODE_CMD_SHL, + X86_DECODE_CMD_SAL, + X86_DECODE_CMD_SHR, + X86_DECODE_CMD_SHRD, + X86_DECODE_CMD_SHLD, + X86_DECODE_CMD_SAR, + X86_DECODE_CMD_DIV, + X86_DECODE_CMD_IDIV, + X86_DECODE_CMD_MUL, + X86_DECODE_CMD_IMUL_3, + X86_DECODE_CMD_IMUL_2, + X86_DECODE_CMD_IMUL_1, + X86_DECODE_CMD_MOVS, + X86_DECODE_CMD_CMPS, + X86_DECODE_CMD_SCAS, + X86_DECODE_CMD_LODS, + X86_DECODE_CMD_STOS, + X86_DECODE_CMD_BSWAP, + X86_DECODE_CMD_XCHG, + X86_DECODE_CMD_RDTSC, + X86_DECODE_CMD_RDMSR, + X86_DECODE_CMD_WRMSR, + X86_DECODE_CMD_ENTER, + X86_DECODE_CMD_LEAVE, + X86_DECODE_CMD_BT, + X86_DECODE_CMD_BTS, + X86_DECODE_CMD_BTC, + X86_DECODE_CMD_BTR, + X86_DECODE_CMD_BSF, + X86_DECODE_CMD_BSR, + X86_DECODE_CMD_IRET, + X86_DECODE_CMD_INT, + X86_DECODE_CMD_POPA, + X86_DECODE_CMD_PUSHA, + X86_DECODE_CMD_CWD, + X86_DECODE_CMD_CBW, + X86_DECODE_CMD_DAS, + X86_DECODE_CMD_AAD, + X86_DECODE_CMD_AAM, + X86_DECODE_CMD_AAS, + X86_DECODE_CMD_LOOP, + X86_DECODE_CMD_SLDT, + X86_DECODE_CMD_STR, + X86_DECODE_CMD_LLDT, + X86_DECODE_CMD_LTR, + X86_DECODE_CMD_VERR, + X86_DECODE_CMD_VERW, + X86_DECODE_CMD_SAHF, + X86_DECODE_CMD_LAHF, + X86_DECODE_CMD_WBINVD, + X86_DECODE_CMD_LDS, + X86_DECODE_CMD_LSS, + X86_DECODE_CMD_LES, + X86_DECODE_XMD_LGS, + X86_DECODE_CMD_LFS, + X86_DECODE_CMD_CMC, + X86_DECODE_CMD_XLAT, + X86_DECODE_CMD_NOP, + X86_DECODE_CMD_CMOV, + X86_DECODE_CMD_CLTS, + X86_DECODE_CMD_XADD, + X86_DECODE_CMD_HLT, + X86_DECODE_CMD_CMPXCHG8B, + X86_DECODE_CMD_CMPXCHG, + X86_DECODE_CMD_POPCNT, + + X86_DECODE_CMD_FNINIT, + X86_DECODE_CMD_FLD, + X86_DECODE_CMD_FLDxx, + X86_DECODE_CMD_FNSTCW, + X86_DECODE_CMD_FNSTSW, + X86_DECODE_CMD_FNSETPM, + X86_DECODE_CMD_FSAVE, + X86_DECODE_CMD_FRSTOR, + X86_DECODE_CMD_FXSAVE, + X86_DECODE_CMD_FXRSTOR, + X86_DECODE_CMD_FDIV, + X86_DECODE_CMD_FMUL, + X86_DECODE_CMD_FSUB, + X86_DECODE_CMD_FADD, + X86_DECODE_CMD_EMMS, + X86_DECODE_CMD_MFENCE, + X86_DECODE_CMD_SFENCE, + X86_DECODE_CMD_LFENCE, + X86_DECODE_CMD_PREFETCH, + X86_DECODE_CMD_CLFLUSH, + X86_DECODE_CMD_FST, + X86_DECODE_CMD_FABS, + X86_DECODE_CMD_FUCOM, + X86_DECODE_CMD_FUCOMI, + X86_DECODE_CMD_FLDCW, + X86_DECODE_CMD_FXCH, + X86_DECODE_CMD_FCHS, + X86_DECODE_CMD_FCMOV, + X86_DECODE_CMD_FRNDINT, + X86_DECODE_CMD_FXAM, + + X86_DECODE_CMD_LAST, +}; + +const char *decode_cmd_to_string(enum x86_decode_cmd cmd); + +typedef struct x86_modrm { + union { + uint8_t modrm; + struct { + uint8_t rm:3; + uint8_t reg:3; + uint8_t mod:2; + }; + }; +} __attribute__ ((__packed__)) x86_modrm; + +typedef struct x86_sib { + union { + uint8_t sib; + struct { + uint8_t base:3; + uint8_t index:3; + uint8_t scale:2; + }; + }; +} __attribute__ ((__packed__)) x86_sib; + +typedef struct x86_rex { + union { + uint8_t rex; + struct { + uint8_t b:1; + uint8_t x:1; + uint8_t r:1; + uint8_t w:1; + uint8_t unused:4; + }; + }; +} __attribute__ ((__packed__)) x86_rex; + +typedef enum x86_var_type { + X86_VAR_IMMEDIATE, + X86_VAR_OFFSET, + X86_VAR_REG, + X86_VAR_RM, + + /* for floating point computations */ + X87_VAR_REG, + X87_VAR_FLOATP, + X87_VAR_INTP, + X87_VAR_BYTEP, +} x86_var_type; + +typedef struct x86_decode_op { + enum x86_var_type type; + int size; + + int reg; + addr_t val; + + addr_t ptr; +} x86_decode_op; + +typedef struct x86_decode { + int len; + uint8_t opcode[4]; + uint8_t opcode_len; + enum x86_decode_cmd cmd; + int addressing_size; + int operand_size; + int lock; + int rep; + int op_size_override; + int addr_size_override; + int segment_override; + int control_change_inst; + bool fwait; + bool fpop_stack; + bool frev; + + uint32_t displacement; + uint8_t displacement_size; + struct x86_rex rex; + bool is_modrm; + bool sib_present; + struct x86_sib sib; + struct x86_modrm modrm; + struct x86_decode_op op[4]; + bool is_fpu; + addr_t flags_mask; + +} x86_decode; + +uint64_t sign(uint64_t val, int size); + +uint32_t decode_instruction(CPUX86State *env, struct x86_decode *decode); + +addr_t get_reg_ref(CPUX86State *env, int reg, int is_extended, int size); +addr_t get_reg_val(CPUX86State *env, int reg, int is_extended, int size); +void calc_modrm_operand(CPUX86State *env, struct x86_decode *decode, + struct x86_decode_op *op); +addr_t decode_linear_addr(CPUX86State *env, struct x86_decode *decode, + addr_t addr, x86_reg_segment seg); + +void init_decoder(void); +void calc_modrm_operand16(CPUX86State *env, struct x86_decode *decode, + struct x86_decode_op *op); +void calc_modrm_operand32(CPUX86State *env, struct x86_decode *decode, + struct x86_decode_op *op); +void calc_modrm_operand64(CPUX86State *env, struct x86_decode *decode, + struct x86_decode_op *op); +void set_addressing_size(CPUX86State *env, struct x86_decode *decode); +void set_operand_size(CPUX86State *env, struct x86_decode *decode); -- cgit v1.2.3-55-g7522