LXR qemu/target/i386/tcg/helper-tcg.h

   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
  34QEMU_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 */
  40void x86_cpu_do_interrupt(CPUState *cpu);
  41bool x86_cpu_exec_interrupt(CPUState *cpu, int int_req);
  42
  43/* helper.c */
  44bool x86_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
  45                      MMUAccessType access_type, int mmu_idx,
  46                      bool probe, uintptr_t retaddr);
  47
  48void breakpoint_handler(CPUState *cs);
  49
  50/* n must be a constant to be efficient */
  51static inline target_long lshift(target_long x, int n)
  52{
  53    if (n >= 0) {
  54        return x << n;
  55    } else {
  56        return x >> (-n);
  57    }
  58}
  59
  60/* translate.c */
  61void tcg_x86_init(void);
  62
  63/* excp_helper.c */
  64void QEMU_NORETURN raise_exception(CPUX86State *env, int exception_index);
  65void QEMU_NORETURN raise_exception_ra(CPUX86State *env, int exception_index,
  66                                      uintptr_t retaddr);
  67void QEMU_NORETURN raise_exception_err(CPUX86State *env, int exception_index,
  68                                       int error_code);
  69void QEMU_NORETURN raise_exception_err_ra(CPUX86State *env, int exception_index,
  70                                          int error_code, uintptr_t retaddr);
  71void QEMU_NORETURN raise_interrupt(CPUX86State *nenv, int intno, int is_int,
  72                                   int error_code, int next_eip_addend);
  73
  74/* cc_helper.c */
  75extern const uint8_t parity_table[256];
  76
  77/* misc_helper.c */
  78void cpu_load_eflags(CPUX86State *env, int eflags, int update_mask);
  79void do_pause(CPUX86State *env) QEMU_NORETURN;
  80
  81/* sysemu/svm_helper.c */
  82#ifndef CONFIG_USER_ONLY
  83void QEMU_NORETURN cpu_vmexit(CPUX86State *nenv, uint32_t exit_code,
  84                              uint64_t exit_info_1, uintptr_t retaddr);
  85void do_vmexit(CPUX86State *env);
  86#endif
  87
  88/* seg_helper.c */
  89void do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw);
  90void do_interrupt_all(X86CPU *cpu, int intno, int is_int,
  91                      int error_code, target_ulong next_eip, int is_hw);
  92void handle_even_inj(CPUX86State *env, int intno, int is_int,
  93                     int error_code, int is_hw, int rm);
  94int exception_has_error_code(int intno);
  95
  96/* smm_helper.c */
  97void do_smm_enter(X86CPU *cpu);
  98
  99/* bpt_helper.c */
 100bool check_hw_breakpoints(CPUX86State *env, bool force_dr6_update);
 101
 102#endif /* I386_HELPER_TCG_H */
 103