| 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_threads: number of vcpu threads in system mode |
| 33 | * |
| 34 | * Allocate and initialize TCG resources, especially the JIT buffer. |
| 35 | * In user-only mode, @max_threads is unused. |
| 36 | */ |
| 37 | void tcg_init(size_t tb_size, int splitwx, unsigned max_threads); |
| 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 |