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 32 static int64_t qtest_get_virtual_clock(void) 33 { 34 return qatomic_read_i64(&qtest_clock_counter); 35 } 36 37 static void qtest_set_virtual_clock(int64_t count) 38 { 39 qatomic_set_i64(&qtest_clock_counter, count); 40 } 41 42 static int qtest_init_accel(AccelState *as, MachineState *ms) 43 { 44 return 0; 45 } 46 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 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 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