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