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8a89c9ac15
Store the TPM interface, the actual object may be different from TPMState. Keep a reference on the interface, and check the backend wasn't already initialized. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
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* Public TPM functions
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*
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* Copyright (C) 2011-2013 IBM Corporation
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*
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* Authors:
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* Stefan Berger <stefanb@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_TPM_H
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#define QEMU_TPM_H
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#include "qom/object.h"
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#include "qapi-types.h"
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typedef struct TPMState TPMState;
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int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
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int tpm_init(void);
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void tpm_cleanup(void);
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typedef enum TPMVersion {
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TPM_VERSION_UNSPEC = 0,
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TPM_VERSION_1_2 = 1,
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TPM_VERSION_2_0 = 2,
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} TPMVersion;
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#define TYPE_TPM_IF "tpm-if"
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#define TPM_IF_CLASS(klass) \
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OBJECT_CLASS_CHECK(TPMIfClass, (klass), TYPE_TPM_IF)
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#define TPM_IF_GET_CLASS(obj) \
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OBJECT_GET_CLASS(TPMIfClass, (obj), TYPE_TPM_IF)
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#define TPM_IF(obj) \
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INTERFACE_CHECK(TPMIf, (obj), TYPE_TPM_IF)
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typedef struct TPMIf {
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Object parent_obj;
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} TPMIf;
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typedef struct TPMIfClass {
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InterfaceClass parent_class;
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/* run in thread pool by backend */
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void (*request_completed)(TPMIf *obj);
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} TPMIfClass;
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TPMVersion tpm_tis_get_tpm_version(Object *obj);
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#define TYPE_TPM_TIS "tpm-tis"
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static inline TPMVersion tpm_get_version(void)
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{
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#ifdef CONFIG_TPM
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Object *obj = object_resolve_path_type("", TYPE_TPM_TIS, NULL);
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if (obj) {
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return tpm_tis_get_tpm_version(obj);
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}
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#endif
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return TPM_VERSION_UNSPEC;
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}
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#endif /* QEMU_TPM_H */
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