tests/qtest/e1000e-test: Check qemu_recv() succeeded
[qemu/ar7.git] / hw / tpm / tpm_tis_isa.c
blob10d8a14f19f63c3dca1e608be1c53184bb1f8def
1 /*
2 * tpm_tis_isa.c - QEMU's TPM TIS ISA Device
4 * Copyright (C) 2006,2010-2013 IBM Corporation
6 * Authors:
7 * Stefan Berger <stefanb@us.ibm.com>
8 * David Safford <safford@us.ibm.com>
10 * Xen 4 support: Andrease Niederl <andreas.niederl@iaik.tugraz.at>
12 * This work is licensed under the terms of the GNU GPL, version 2 or later.
13 * See the COPYING file in the top-level directory.
15 * Implementation of the TIS interface according to specs found at
16 * http://www.trustedcomputinggroup.org. This implementation currently
17 * supports version 1.3, 21 March 2013
18 * In the developers menu choose the PC Client section then find the TIS
19 * specification.
21 * TPM TIS for TPM 2 implementation following TCG PC Client Platform
22 * TPM Profile (PTP) Specification, Familiy 2.0, Revision 00.43
25 #include "qemu/osdep.h"
26 #include "hw/isa/isa.h"
27 #include "hw/qdev-properties.h"
28 #include "migration/vmstate.h"
29 #include "hw/acpi/tpm.h"
30 #include "tpm_prop.h"
31 #include "tpm_tis.h"
32 #include "qom/object.h"
34 struct TPMStateISA {
35 /*< private >*/
36 ISADevice parent_obj;
38 /*< public >*/
39 TPMState state; /* not a QOM object */
42 OBJECT_DECLARE_SIMPLE_TYPE(TPMStateISA, TPM_TIS_ISA)
44 static int tpm_tis_pre_save_isa(void *opaque)
46 TPMStateISA *isadev = opaque;
48 return tpm_tis_pre_save(&isadev->state);
51 static const VMStateDescription vmstate_tpm_tis_isa = {
52 .name = "tpm-tis",
53 .version_id = 0,
54 .pre_save = tpm_tis_pre_save_isa,
55 .fields = (VMStateField[]) {
56 VMSTATE_BUFFER(state.buffer, TPMStateISA),
57 VMSTATE_UINT16(state.rw_offset, TPMStateISA),
58 VMSTATE_UINT8(state.active_locty, TPMStateISA),
59 VMSTATE_UINT8(state.aborting_locty, TPMStateISA),
60 VMSTATE_UINT8(state.next_locty, TPMStateISA),
62 VMSTATE_STRUCT_ARRAY(state.loc, TPMStateISA, TPM_TIS_NUM_LOCALITIES, 0,
63 vmstate_locty, TPMLocality),
65 VMSTATE_END_OF_LIST()
69 static void tpm_tis_isa_request_completed(TPMIf *ti, int ret)
71 TPMStateISA *isadev = TPM_TIS_ISA(ti);
72 TPMState *s = &isadev->state;
74 tpm_tis_request_completed(s, ret);
77 static enum TPMVersion tpm_tis_isa_get_tpm_version(TPMIf *ti)
79 TPMStateISA *isadev = TPM_TIS_ISA(ti);
80 TPMState *s = &isadev->state;
82 return tpm_tis_get_tpm_version(s);
85 static void tpm_tis_isa_reset(DeviceState *dev)
87 TPMStateISA *isadev = TPM_TIS_ISA(dev);
88 TPMState *s = &isadev->state;
90 return tpm_tis_reset(s);
93 static Property tpm_tis_isa_properties[] = {
94 DEFINE_PROP_UINT32("irq", TPMStateISA, state.irq_num, TPM_TIS_IRQ),
95 DEFINE_PROP_TPMBE("tpmdev", TPMStateISA, state.be_driver),
96 DEFINE_PROP_BOOL("ppi", TPMStateISA, state.ppi_enabled, true),
97 DEFINE_PROP_END_OF_LIST(),
100 static void tpm_tis_isa_initfn(Object *obj)
102 TPMStateISA *isadev = TPM_TIS_ISA(obj);
103 TPMState *s = &isadev->state;
105 memory_region_init_io(&s->mmio, obj, &tpm_tis_memory_ops,
106 s, "tpm-tis-mmio",
107 TPM_TIS_NUM_LOCALITIES << TPM_TIS_LOCALITY_SHIFT);
110 static void tpm_tis_isa_realizefn(DeviceState *dev, Error **errp)
112 TPMStateISA *isadev = TPM_TIS_ISA(dev);
113 TPMState *s = &isadev->state;
115 if (!tpm_find()) {
116 error_setg(errp, "at most one TPM device is permitted");
117 return;
120 if (!s->be_driver) {
121 error_setg(errp, "'tpmdev' property is required");
122 return;
124 if (s->irq_num > 15) {
125 error_setg(errp, "IRQ %d is outside valid range of 0 to 15",
126 s->irq_num);
127 return;
130 isa_init_irq(ISA_DEVICE(dev), &s->irq, s->irq_num);
132 memory_region_add_subregion(isa_address_space(ISA_DEVICE(dev)),
133 TPM_TIS_ADDR_BASE, &s->mmio);
135 if (s->ppi_enabled) {
136 tpm_ppi_init(&s->ppi, isa_address_space(ISA_DEVICE(dev)),
137 TPM_PPI_ADDR_BASE, OBJECT(dev));
141 static void tpm_tis_isa_class_init(ObjectClass *klass, void *data)
143 DeviceClass *dc = DEVICE_CLASS(klass);
144 TPMIfClass *tc = TPM_IF_CLASS(klass);
146 device_class_set_props(dc, tpm_tis_isa_properties);
147 dc->vmsd = &vmstate_tpm_tis_isa;
148 tc->model = TPM_MODEL_TPM_TIS;
149 dc->realize = tpm_tis_isa_realizefn;
150 dc->reset = tpm_tis_isa_reset;
151 tc->request_completed = tpm_tis_isa_request_completed;
152 tc->get_version = tpm_tis_isa_get_tpm_version;
153 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
156 static const TypeInfo tpm_tis_isa_info = {
157 .name = TYPE_TPM_TIS_ISA,
158 .parent = TYPE_ISA_DEVICE,
159 .instance_size = sizeof(TPMStateISA),
160 .instance_init = tpm_tis_isa_initfn,
161 .class_init = tpm_tis_isa_class_init,
162 .interfaces = (InterfaceInfo[]) {
163 { TYPE_TPM_IF },
168 static void tpm_tis_isa_register(void)
170 type_register_static(&tpm_tis_isa_info);
173 type_init(tpm_tis_isa_register)