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