include/exec/tb-context.h

   1 /*
   2  * Internal structs that QEMU exports to TCG
   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 QEMU_TB_CONTEXT_H
  21 #define QEMU_TB_CONTEXT_H
  22
  23 #include "qemu/thread.h"
  24 #include "qemu/qht.h"
  25
  26 #define CODE_GEN_HTABLE_BITS     15
  27 #define CODE_GEN_HTABLE_SIZE     (1 << CODE_GEN_HTABLE_BITS)
  28
  29 typedef struct TranslationBlock TranslationBlock;
  30 typedef struct TBContext TBContext;
  31
  32 struct TBContext {
  33
  34     GTree *tb_tree;
  35     struct qht htable;
  36     /* any access to the tbs or the page table must use this lock */
  37     QemuMutex tb_lock;
  38
  39     /* statistics */
  40     unsigned tb_flush_count;
  41     int tb_phys_invalidate_count;
  42 };
  43
  44 extern TBContext tb_ctx;
  45
  46 #endif