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 30 static int64_t qtest_get_virtual_clock(void) 31 { 32 return qatomic_read_i64(&qtest_clock_counter); 33 } 34 35 static void qtest_set_virtual_clock(int64_t count) 36 { 37 qatomic_set_i64(&qtest_clock_counter, count); 38 } 39 40 static int qtest_init_accel(MachineState *ms) 41 { 42 return 0; 43 } 44 45 static void qtest_accel_class_init(ObjectClass *oc, 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 62 static void qtest_accel_ops_class_init(ObjectClass *oc, 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 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