| 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(&qtest_clock_counter); |
| 35 | } |
| 36 | |
| 37 | static void qtest_set_virtual_clock(int64_t count) |
| 38 | { |
| 39 | qatomic_set(&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); |