4 * Copyright (C) 2011-2013 IBM Corporation
7 * Stefan Berger <stefanb@us.ibm.com>
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.
15 #include "exec/memory.h"
16 #include "tpm/tpm_tis.h"
19 typedef struct TPMDriverOps TPMDriverOps
;
21 typedef struct TPMBackend
{
23 enum TpmModel fe_model
;
26 const TPMDriverOps
*ops
;
28 QLIST_ENTRY(TPMBackend
) list
;
31 /* overall state of the TPM interface */
32 typedef struct TPMState
{
41 TPMLocality
*locty_data
;
44 TPMBackend
*be_driver
;
47 #define TPM(obj) OBJECT_CHECK(TPMState, (obj), TYPE_TPM_TIS)
49 typedef void (TPMRecvDataCB
)(TPMState
*, uint8_t locty
);
53 /* get a descriptive text of the backend to display to the user */
54 const char *(*desc
)(void);
56 TPMBackend
*(*create
)(QemuOpts
*opts
, const char *id
);
57 void (*destroy
)(TPMBackend
*t
);
59 /* initialize the backend */
60 int (*init
)(TPMBackend
*t
, TPMState
*s
, TPMRecvDataCB
*datacb
);
61 /* start up the TPM on the backend */
62 int (*startup_tpm
)(TPMBackend
*t
);
63 /* returns true if nothing will ever answer TPM requests */
64 bool (*had_startup_error
)(TPMBackend
*t
);
66 size_t (*realloc_buffer
)(TPMSizedBuffer
*sb
);
68 void (*deliver_request
)(TPMBackend
*t
);
70 void (*reset
)(TPMBackend
*t
);
72 void (*cancel_cmd
)(TPMBackend
*t
);
74 bool (*get_tpm_established_flag
)(TPMBackend
*t
);
77 TPMBackend
*qemu_find_tpm(const char *id
);
78 int tpm_register_model(enum TpmModel model
);
79 int tpm_register_driver(const TPMDriverOps
*tdo
);
80 void tpm_display_backend_drivers(void);
81 const TPMDriverOps
*tpm_get_backend_driver(const char *type
);
83 #endif /* TPM_TPM_INT_H */