include/tcg/startup.h

   1 /*
   2  * Tiny Code Generator for QEMU: definitions used by runtime startup
   3  *
   4  * Copyright (c) 2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #ifndef TCG_STARTUP_H
  26 #define TCG_STARTUP_H
  27
  28 /**
  29  * tcg_init: Initialize the TCG runtime
  30  * @tb_size: translation buffer size
  31  * @splitwx: use separate rw and rx mappings
  32  * @max_cpus: number of vcpus in system mode
  33  *
  34  * Allocate and initialize TCG resources, especially the JIT buffer.
  35  * In user-only mode, @max_cpus is unused.
  36  */
  37 void tcg_init(size_t tb_size, int splitwx, unsigned max_cpus);
  38
  39 /**
  40  * tcg_register_thread: Register this thread with the TCG runtime
  41  *
  42  * All TCG threads except the parent (i.e. the one that called the TCG
  43  * accelerator's init_machine() method) must register with this
  44  * function before initiating translation.
  45  */
  46 void tcg_register_thread(void);
  47
  48 /**
  49  * tcg_prologue_init(): Generate the code for the TCG prologue
  50  *
  51  * In softmmu this is done automatically as part of the TCG
  52  * accelerator's init_machine() method, but for user-mode, the
  53  * user-mode code must call this function after it has loaded
  54  * the guest binary and the value of guest_base is known.
  55  */
  56 void tcg_prologue_init(void);
  57
  58 #endif