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 "accel/accel-ops.h"
22 #include "accel/accel-cpu-ops.h"
23 #include "system/qtest.h"
24 #include "system/cpus.h"
25 #include "qemu/guest-random.h"
26 #include "qemu/main-loop.h"
27 #include "hw/core/cpu.h"
28 #include "accel/dummy-cpus.h"
29
30 static int64_t qtest_clock_counter;
31
qtest_get_virtual_clock(void)32 static int64_t qtest_get_virtual_clock(void)
33 {
34 return qatomic_read_i64(&qtest_clock_counter);
35 }
36
qtest_set_virtual_clock(int64_t count)37 static void qtest_set_virtual_clock(int64_t count)
38 {
39 qatomic_set_i64(&qtest_clock_counter, count);
40 }
41
qtest_init_accel(AccelState * as,MachineState * ms)42 static int qtest_init_accel(AccelState *as, MachineState *ms)
43 {
44 return 0;
45 }
46
qtest_accel_class_init(ObjectClass * oc,const void * data)47 static void qtest_accel_class_init(ObjectClass *oc, const void *data)
48 {
49 AccelClass *ac = ACCEL_CLASS(oc);
50 ac->name = "QTest";
51 ac->init_machine = qtest_init_accel;
52 ac->allowed = &qtest_allowed;
53 }
54
55 #define TYPE_QTEST_ACCEL ACCEL_CLASS_NAME("qtest")
56
57 static const TypeInfo qtest_accel_type = {
58 .name = TYPE_QTEST_ACCEL,
59 .parent = TYPE_ACCEL,
60 .class_init = qtest_accel_class_init,
61 };
62 module_obj(TYPE_QTEST_ACCEL);
63
qtest_accel_ops_class_init(ObjectClass * oc,const void * data)64 static void qtest_accel_ops_class_init(ObjectClass *oc, const void *data)
65 {
66 AccelOpsClass *ops = ACCEL_OPS_CLASS(oc);
67
68 ops->create_vcpu_thread = dummy_start_vcpu_thread;
69 ops->get_virtual_clock = qtest_get_virtual_clock;
70 ops->set_virtual_clock = qtest_set_virtual_clock;
71 ops->handle_interrupt = generic_handle_interrupt;
72 };
73
74 static const TypeInfo qtest_accel_ops_type = {
75 .name = ACCEL_OPS_NAME("qtest"),
76
77 .parent = TYPE_ACCEL_OPS,
78 .class_init = qtest_accel_ops_class_init,
79 .abstract = true,
80 };
81 module_obj(ACCEL_OPS_NAME("qtest"));
82
qtest_type_init(void)83 static void qtest_type_init(void)
84 {
85 type_register_static(&qtest_accel_type);
86 type_register_static(&qtest_accel_ops_type);
87 }
88
89 type_init(qtest_type_init);
90