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 | int tpm_config_parse(QemuOptsList *opts_list, const char *optarg); |
19 | void tpm_init(void); |
20 | void tpm_cleanup(void); |
21 | |
22 | typedef enum TPMVersion { |
23 | TPM_VERSION_UNSPEC = 0, |
24 | TPM_VERSION_1_2 = 1, |
25 | TPM_VERSION_2_0 = 2, |
26 | } TPMVersion; |
27 | |
28 | #define TYPE_TPM_IF "tpm-if" |
29 | #define TPM_IF_CLASS(klass) \ |
30 | OBJECT_CLASS_CHECK(TPMIfClass, (klass), TYPE_TPM_IF) |
31 | #define TPM_IF_GET_CLASS(obj) \ |
32 | OBJECT_GET_CLASS(TPMIfClass, (obj), TYPE_TPM_IF) |
33 | #define TPM_IF(obj) \ |
34 | INTERFACE_CHECK(TPMIf, (obj), TYPE_TPM_IF) |
35 | |
36 | typedef struct TPMIf TPMIf; |
37 | |
38 | typedef struct TPMIfClass { |
39 | InterfaceClass parent_class; |
40 | |
41 | enum TpmModel model; |
42 | void (*request_completed)(TPMIf *obj, int ret); |
43 | enum TPMVersion (*get_version)(TPMIf *obj); |
44 | } TPMIfClass; |
45 | |
46 | #define TYPE_TPM_TIS "tpm-tis" |
47 | #define TYPE_TPM_CRB "tpm-crb" |
48 | |
49 | #define TPM_IS_TIS(chr) \ |
50 | object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS) |
51 | #define TPM_IS_CRB(chr) \ |
52 | object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB) |
53 | |
54 | /* returns NULL unless there is exactly one TPM device */ |
55 | static inline TPMIf *tpm_find(void) |
56 | { |
57 | Object *obj = object_resolve_path_type("" , TYPE_TPM_IF, NULL); |
58 | |
59 | return TPM_IF(obj); |
60 | } |
61 | |
62 | static inline TPMVersion tpm_get_version(TPMIf *ti) |
63 | { |
64 | if (!ti) { |
65 | return TPM_VERSION_UNSPEC; |
66 | } |
67 | |
68 | return TPM_IF_GET_CLASS(ti)->get_version(ti); |
69 | } |
70 | |
71 | #endif /* QEMU_TPM_H */ |
72 | |