Merge tag 'hppa-serial-fix-pull-request' of https://github.com/hdeller/qemu-hppa...
[qemu.git] / include / sysemu / tpm.h
1 /*
2 * Public TPM functions
3 *
4 * Copyright (C) 2011-2013 IBM Corporation
5 *
6 * Authors:
7 * Stefan Berger <stefanb@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 #ifndef QEMU_TPM_H
13 #define QEMU_TPM_H
14
15 #include "qapi/qapi-types-tpm.h"
16 #include "qom/object.h"
17
18 #ifdef CONFIG_TPM
19
20 int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
21 int tpm_init(void);
22 void tpm_cleanup(void);
23
24 typedef enum TPMVersion {
25 TPM_VERSION_UNSPEC = 0,
26 TPM_VERSION_1_2 = 1,
27 TPM_VERSION_2_0 = 2,
28 } TPMVersion;
29
30 #define TYPE_TPM_IF "tpm-if"
31 typedef struct TPMIfClass TPMIfClass;
32 DECLARE_CLASS_CHECKERS(TPMIfClass, TPM_IF,
33 TYPE_TPM_IF)
34 #define TPM_IF(obj) \
35 INTERFACE_CHECK(TPMIf, (obj), TYPE_TPM_IF)
36
37 typedef struct TPMIf TPMIf;
38
39 struct TPMIfClass {
40 InterfaceClass parent_class;
41
42 enum TpmModel model;
43 void (*request_completed)(TPMIf *obj, int ret);
44 enum TPMVersion (*get_version)(TPMIf *obj);
45 };
46
47 #define TYPE_TPM_TIS_ISA "tpm-tis"
48 #define TYPE_TPM_TIS_SYSBUS "tpm-tis-device"
49 #define TYPE_TPM_CRB "tpm-crb"
50 #define TYPE_TPM_SPAPR "tpm-spapr"
51
52 #define TPM_IS_TIS_ISA(chr) \
53 object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_ISA)
54 #define TPM_IS_TIS_SYSBUS(chr) \
55 object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_SYSBUS)
56 #define TPM_IS_CRB(chr) \
57 object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB)
58 #define TPM_IS_SPAPR(chr) \
59 object_dynamic_cast(OBJECT(chr), TYPE_TPM_SPAPR)
60
61 /* returns NULL unless there is exactly one TPM device */
62 static inline TPMIf *tpm_find(void)
63 {
64 Object *obj = object_resolve_path_type("", TYPE_TPM_IF, NULL);
65
66 return TPM_IF(obj);
67 }
68
69 static inline TPMVersion tpm_get_version(TPMIf *ti)
70 {
71 if (!ti) {
72 return TPM_VERSION_UNSPEC;
73 }
74
75 return TPM_IF_GET_CLASS(ti)->get_version(ti);
76 }
77
78 #else /* CONFIG_TPM */
79
80 #define tpm_init() (0)
81 #define tpm_cleanup()
82
83 /* needed for an alignment check in non-tpm code */
84 static inline Object *TPM_IS_CRB(Object *obj)
85 {
86 return NULL;
87 }
88
89 #endif /* CONFIG_TPM */
90
91 #endif /* QEMU_TPM_H */