1 /*
2 * QTest accelerator code
3 *
4 * Copyright IBM, Corp. 2011
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.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
14 #include "qemu/osdep.h"
15 #include "qemu/rcu.h"
16 #include "qapi/error.h"
17 #include "qemu/module.h"
18 #include "qemu/option.h"
19 #include "qemu/config-file.h"
20 #include "qemu/accel.h"
21 #include "system/accel-ops.h"
22 #include "system/qtest.h"
23 #include "system/cpus.h"
24 #include "qemu/guest-random.h"
25 #include "qemu/main-loop.h"
26 #include "hw/core/cpu.h"
27
28 static int64_t qtest_clock_counter;
29
qtest_get_virtual_clock(void)30 static int64_t qtest_get_virtual_clock(void)
31 {
32 return qatomic_read_i64(&qtest_clock_counter);
33 }
34
qtest_set_virtual_clock(int64_t count)35 static void qtest_set_virtual_clock(int64_t count)
36 {
37 qatomic_set_i64(&qtest_clock_counter, count);
38 }
39
qtest_init_accel(MachineState * ms)40 static int qtest_init_accel(MachineState *ms)
41 {
42 return 0;
43 }
44
qtest_accel_class_init(ObjectClass * oc,const void * data)45 static void qtest_accel_class_init(ObjectClass *oc, const void *data)
46 {
47 AccelClass *ac = ACCEL_CLASS(oc);
48 ac->name = "QTest";
49 ac->init_machine = qtest_init_accel;
50 ac->allowed = &qtest_allowed;
51 }
52
53 #define TYPE_QTEST_ACCEL ACCEL_CLASS_NAME("qtest")
54
55 static const TypeInfo qtest_accel_type = {
56 .name = TYPE_QTEST_ACCEL,
57 .parent = TYPE_ACCEL,
58 .class_init = qtest_accel_class_init,
59 };
60 module_obj(TYPE_QTEST_ACCEL);
61
qtest_accel_ops_class_init(ObjectClass * oc,const void * data)62 static void qtest_accel_ops_class_init(ObjectClass *oc, const void *data)
63 {
64 AccelOpsClass *ops = ACCEL_OPS_CLASS(oc);
65
66 ops->create_vcpu_thread = dummy_start_vcpu_thread;
67 ops->get_virtual_clock = qtest_get_virtual_clock;
68 ops->set_virtual_clock = qtest_set_virtual_clock;
69 };
70
71 static const TypeInfo qtest_accel_ops_type = {
72 .name = ACCEL_OPS_NAME("qtest"),
73
74 .parent = TYPE_ACCEL_OPS,
75 .class_init = qtest_accel_ops_class_init,
76 .abstract = true,
77 };
78 module_obj(ACCEL_OPS_NAME("qtest"));
79
qtest_type_init(void)80 static void qtest_type_init(void)
81 {
82 type_register_static(&qtest_accel_type);
83 type_register_static(&qtest_accel_ops_type);
84 }
85
86 type_init(qtest_type_init);
87