4ab6cb4c62
tpm_crb is a device for TPM 2.0 Command Response Buffer (CRB) Interface as defined in TCG PC Client Platform TPM Profile (PTP) Specification Family “2.0” Level 00 Revision 01.03 v22. The PTP allows device implementation to switch between TIS and CRB model at run time, but given that CRB is a simpler device to implement, I chose to implement it as a different device. The device doesn't implement other locality than 0 for now (my laptop TPM doesn't either, so I assume this isn't so bad) Tested with some success with Linux upstream and Windows 10, seabios & modified ovmf. The device is recognized and correctly transmit command/response with passthrough & emu. However, we are missing PPI ACPI part atm. 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>
74 lines
1.8 KiB
C
74 lines
1.8 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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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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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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} TPMIfClass;
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#define TYPE_TPM_TIS "tpm-tis"
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#define TYPE_TPM_CRB "tpm-crb"
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#define TPM_IS_TIS(chr) \
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object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS)
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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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/* 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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#endif /* QEMU_TPM_H */
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