4168cdad39
In a subsequent patch, VFIO will need to recognize if a memory region owner is a TPM CRB device. Hence VFIO needs to use TPM_IS_CRB() even if CONFIG_TPM is unset. So let's add a stub function. Signed-off-by: Eric Auger <eric.auger@redhat.com> Suggested-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Stefan Berger <stefanb@linnux.ibm.com> Link: https://lore.kernel.org/r/20220506132510.1847942-2-eric.auger@redhat.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
92 lines
2.2 KiB
C
92 lines
2.2 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 "qapi/qapi-types-tpm.h"
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#include "qom/object.h"
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#ifdef CONFIG_TPM
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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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typedef struct TPMIfClass TPMIfClass;
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DECLARE_CLASS_CHECKERS(TPMIfClass, TPM_IF,
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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 TPMIf;
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struct TPMIfClass {
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InterfaceClass parent_class;
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enum TpmModel model;
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void (*request_completed)(TPMIf *obj, int ret);
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enum TPMVersion (*get_version)(TPMIf *obj);
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};
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#define TYPE_TPM_TIS_ISA "tpm-tis"
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#define TYPE_TPM_TIS_SYSBUS "tpm-tis-device"
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#define TYPE_TPM_CRB "tpm-crb"
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#define TYPE_TPM_SPAPR "tpm-spapr"
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#define TPM_IS_TIS_ISA(chr) \
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object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_ISA)
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#define TPM_IS_TIS_SYSBUS(chr) \
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object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_SYSBUS)
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#define TPM_IS_CRB(chr) \
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object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB)
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#define TPM_IS_SPAPR(chr) \
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object_dynamic_cast(OBJECT(chr), TYPE_TPM_SPAPR)
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/* returns NULL unless there is exactly one TPM device */
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static inline TPMIf *tpm_find(void)
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{
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Object *obj = object_resolve_path_type("", TYPE_TPM_IF, NULL);
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return TPM_IF(obj);
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}
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static inline TPMVersion tpm_get_version(TPMIf *ti)
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{
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if (!ti) {
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return TPM_VERSION_UNSPEC;
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}
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return TPM_IF_GET_CLASS(ti)->get_version(ti);
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}
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#else /* CONFIG_TPM */
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#define tpm_init() (0)
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#define tpm_cleanup()
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/* needed for an alignment check in non-tpm code */
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static inline Object *TPM_IS_CRB(Object *obj)
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{
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return NULL;
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}
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#endif /* CONFIG_TPM */
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#endif /* QEMU_TPM_H */
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