| 1 | /* |
| 2 | * QEMU Thread Context |
| 3 | * |
| 4 | * Copyright Red Hat Inc., 2022 |
| 5 | * |
| 6 | * Authors: |
| 7 | * David Hildenbrand <david@redhat.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 10 | * See the COPYING file in the top-level directory. |
| 11 | */ |
| 12 | |
| 13 | #ifndef SYSEMU_THREAD_CONTEXT_H |
| 14 | #define SYSEMU_THREAD_CONTEXT_H |
| 15 | |
| 16 | #include "qapi/qapi-types-machine.h" |
| 17 | #include "qemu/thread.h" |
| 18 | #include "qom/object.h" |
| 19 | |
| 20 | #define TYPE_THREAD_CONTEXT "thread-context" |
| 21 | OBJECT_DECLARE_TYPE(ThreadContext, ThreadContextClass, |
| 22 | THREAD_CONTEXT) |
| 23 | |
| 24 | struct ThreadContextClass { |
| 25 | ObjectClass parent_class; |
| 26 | }; |
| 27 | |
| 28 | struct ThreadContext { |
| 29 | /* private */ |
| 30 | Object parent; |
| 31 | |
| 32 | /* private */ |
| 33 | unsigned int thread_id; |
| 34 | QemuThread thread; |
| 35 | |
| 36 | /* Semaphore to wait for context thread action. */ |
| 37 | QemuSemaphore sem; |
| 38 | /* Semaphore to wait for action in context thread. */ |
| 39 | QemuSemaphore sem_thread; |
| 40 | /* Mutex to synchronize requests. */ |
| 41 | QemuMutex mutex; |
| 42 | |
| 43 | /* Commands for the thread to execute. */ |
| 44 | int thread_cmd; |
| 45 | void *thread_cmd_data; |
| 46 | |
| 47 | /* CPU affinity bitmap used for initialization. */ |
| 48 | unsigned long *init_cpu_bitmap; |
| 49 | int init_cpu_nbits; |
| 50 | }; |
| 51 | |
| 52 | void thread_context_create_thread(ThreadContext *tc, QemuThread *thread, |
| 53 | const char *name, |
| 54 | void *(*start_routine)(void *), void *arg, |
| 55 | int mode); |
| 56 | |
| 57 | #endif /* SYSEMU_THREAD_CONTEXT_H */ |