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 59