target/i386/tcg/user/excp_helper.c

   1 /*
   2  *  x86 exception helpers - user-mode specific code
   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 2.1 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 #include "qemu/osdep.h"
  21 #include "cpu.h"
  22 #include "exec/exec-all.h"
  23 #include "tcg/helper-tcg.h"
  24
  25 bool x86_cpu_tlb_fill(CPUState *cs, vaddr addr, int size,
  26                       MMUAccessType access_type, int mmu_idx,
  27                       bool probe, uintptr_t retaddr)
  28 {
  29     X86CPU *cpu = X86_CPU(cs);
  30     CPUX86State *env = &cpu->env;
  31
  32     env->cr[2] = addr;
  33     env->error_code = (access_type == MMU_DATA_STORE) << PG_ERROR_W_BIT;
  34     env->error_code |= PG_ERROR_U_MASK;
  35     cs->exception_index = EXCP0E_PAGE;
  36     env->exception_is_int = 0;
  37     env->exception_next_eip = -1;
  38     cpu_loop_exit_restore(cs, retaddr);
  39 }