1 /* 2 * TCG specific prototypes for helpers 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef I386_HELPER_TCG_H 21 #define I386_HELPER_TCG_H 22 23 #include "exec/exec-all.h" 24 25 /* Maximum instruction code size */ 26 #define TARGET_MAX_INSN_SIZE 16 27 28 #if defined(TARGET_X86_64) 29 # define TCG_PHYS_ADDR_BITS 40 30 #else 31 # define TCG_PHYS_ADDR_BITS 36 32 #endif 33 34 QEMU_BUILD_BUG_ON(TCG_PHYS_ADDR_BITS > TARGET_PHYS_ADDR_SPACE_BITS); 35 36 /** 37 * x86_cpu_do_interrupt: 38 * @cpu: vCPU the interrupt is to be handled by. 39 */ 40 void x86_cpu_do_interrupt(CPUState *cpu); 41 #ifndef CONFIG_USER_ONLY 42 bool x86_cpu_exec_halt(CPUState *cpu); 43 bool x86_need_replay_interrupt(int interrupt_request); 44 bool x86_cpu_exec_interrupt(CPUState *cpu, int int_req); 45 #endif 46 47 void breakpoint_handler(CPUState *cs); 48 49 /* n must be a constant to be efficient */ 50 static inline target_long lshift(target_long x, int n) 51 { 52 if (n >= 0) { 53 return x << n; 54 } else { 55 return x >> (-n); 56 } 57 } 58 59 /* translate.c */ 60 void tcg_x86_init(void); 61 62 /* excp_helper.c */ 63 G_NORETURN void raise_exception(CPUX86State *env, int exception_index); 64 G_NORETURN void raise_exception_ra(CPUX86State *env, int exception_index, 65 uintptr_t retaddr); 66 G_NORETURN void raise_exception_err(CPUX86State *env, int exception_index, 67 int error_code); 68 G_NORETURN void raise_exception_err_ra(CPUX86State *env, int exception_index, 69 int error_code, uintptr_t retaddr); 70 G_NORETURN void raise_interrupt(CPUX86State *nenv, int intno, int next_eip_addend); 71 G_NORETURN void handle_unaligned_access(CPUX86State *env, vaddr vaddr, 72 MMUAccessType access_type, 73 uintptr_t retaddr); 74 #ifdef CONFIG_USER_ONLY 75 void x86_cpu_record_sigsegv(CPUState *cs, vaddr addr, 76 MMUAccessType access_type, 77 bool maperr, uintptr_t ra); 78 void x86_cpu_record_sigbus(CPUState *cs, vaddr addr, 79 MMUAccessType access_type, uintptr_t ra); 80 #else 81 bool x86_cpu_tlb_fill(CPUState *cs, vaddr address, int size, 82 MMUAccessType access_type, int mmu_idx, 83 bool probe, uintptr_t retaddr); 84 G_NORETURN void x86_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr, 85 MMUAccessType access_type, 86 int mmu_idx, uintptr_t retaddr); 87 #endif 88 89 /* cc_helper.c */ 90 extern const uint8_t parity_table[256]; 91 92 /* misc_helper.c */ 93 void cpu_load_eflags(CPUX86State *env, int eflags, int update_mask); 94 95 /* sysemu/svm_helper.c */ 96 #ifndef CONFIG_USER_ONLY 97 G_NORETURN void cpu_vmexit(CPUX86State *nenv, uint32_t exit_code, 98 uint64_t exit_info_1, uintptr_t retaddr); 99 void do_vmexit(CPUX86State *env); 100 #endif 101 102 /* seg_helper.c */ 103 void do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw); 104 void do_interrupt_all(X86CPU *cpu, int intno, int is_int, 105 int error_code, target_ulong next_eip, int is_hw); 106 void handle_even_inj(CPUX86State *env, int intno, int is_int, 107 int error_code, int is_hw, int rm); 108 int exception_has_error_code(int intno); 109 110 /* smm_helper.c */ 111 void do_smm_enter(X86CPU *cpu); 112 113 /* sysemu/bpt_helper.c */ 114 bool check_hw_breakpoints(CPUX86State *env, bool force_dr6_update); 115 116 /* 117 * Do the tasks usually performed by gen_eob(). Callers of this function 118 * should also handle TF as appropriate. 119 */ 120 static inline void do_end_instruction(CPUX86State *env) 121 { 122 /* needed if sti is just before */ 123 env->hflags &= ~HF_INHIBIT_IRQ_MASK; 124 env->eflags &= ~HF_RF_MASK; 125 } 126 #endif /* I386_HELPER_TCG_H */ 127