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 "qemu/option.h" 16 #include "qom/object.h" 17 18 typedef struct TPMState TPMState; 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 #define TPM_IF_CLASS(klass) \ 32 OBJECT_CLASS_CHECK(TPMIfClass, (klass), TYPE_TPM_IF) 33 #define TPM_IF_GET_CLASS(obj) \ 34 OBJECT_GET_CLASS(TPMIfClass, (obj), TYPE_TPM_IF) 35 #define TPM_IF(obj) \ 36 INTERFACE_CHECK(TPMIf, (obj), TYPE_TPM_IF) 37 38 typedef struct TPMIf { 39 Object parent_obj; 40 } TPMIf; 41 42 typedef struct TPMIfClass { 43 InterfaceClass parent_class; 44 45 /* run in thread pool by backend */ 46 void (*request_completed)(TPMIf *obj); 47 } TPMIfClass; 48 49 TPMVersion tpm_tis_get_tpm_version(Object *obj); 50 51 #define TYPE_TPM_TIS "tpm-tis" 52 53 static inline TPMVersion tpm_get_version(void) 54 { 55 #ifdef CONFIG_TPM 56 Object *obj = object_resolve_path_type("", TYPE_TPM_TIS, NULL); 57 58 if (obj) { 59 return tpm_tis_get_tpm_version(obj); 60 } 61 #endif 62 return TPM_VERSION_UNSPEC; 63 } 64 65 #endif /* QEMU_TPM_H */ 66