1 /* 2 * Copyright (C) 2016 Veertu Inc, 3 * Copyright (C) 2017 Google Inc, 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2.1 of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this program; if not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #ifndef X86_EMU_H 20 #define X86_EMU_H 21 22 #include "x86.h" 23 #include "x86_decode.h" 24 #include "cpu.h" 25 26 struct x86_emul_ops { 27 void (*read_mem)(CPUState *cpu, void *data, target_ulong addr, int bytes); 28 void (*write_mem)(CPUState *cpu, void *data, target_ulong addr, int bytes); 29 void (*read_segment_descriptor)(CPUState *cpu, struct x86_segment_descriptor *desc, 30 enum X86Seg seg); 31 void (*handle_io)(CPUState *cpu, uint16_t port, void *data, int direction, 32 int size, int count); 33 void (*simulate_rdmsr)(CPUState *cs); 34 void (*simulate_wrmsr)(CPUState *cs); 35 }; 36 37 extern const struct x86_emul_ops *emul_ops; 38 39 void init_emu(const struct x86_emul_ops *ops); 40 bool exec_instruction(CPUX86State *env, struct x86_decode *ins); 41 void x86_emul_raise_exception(CPUX86State *env, int exception_index, int error_code); 42 43 target_ulong read_reg(CPUX86State *env, int reg, int size); 44 void write_reg(CPUX86State *env, int reg, target_ulong val, int size); 45 target_ulong read_val_from_reg(void *reg_ptr, int size); 46 void write_val_to_reg(void *reg_ptr, target_ulong val, int size); 47 void write_val_ext(CPUX86State *env, struct x86_decode_op *decode, target_ulong val, int size); 48 uint8_t *read_mmio(CPUX86State *env, target_ulong ptr, int bytes); 49 target_ulong read_val_ext(CPUX86State *env, struct x86_decode_op *decode, int size); 50 51 void exec_movzx(CPUX86State *env, struct x86_decode *decode); 52 void exec_shl(CPUX86State *env, struct x86_decode *decode); 53 void exec_movsx(CPUX86State *env, struct x86_decode *decode); 54 void exec_ror(CPUX86State *env, struct x86_decode *decode); 55 void exec_rol(CPUX86State *env, struct x86_decode *decode); 56 void exec_rcl(CPUX86State *env, struct x86_decode *decode); 57 void exec_rcr(CPUX86State *env, struct x86_decode *decode); 58 #endif 59