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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 */ |