4 * Copyright (C) 2011-2013 IBM Corporation
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 /* overall state of the TPM interface */
22 typedef struct TPMState {
31 TPMLocality *locty_data;
34 TPMBackend *be_driver;
37 #define TPM(obj) OBJECT_CHECK(TPMState, (obj), TYPE_TPM_TIS)
39 typedef void (TPMRecvDataCB)(TPMState *, uint8_t locty);
43 /* get a descriptive text of the backend to display to the user */
44 const char *(*desc)(void);
46 TPMBackend *(*create)(QemuOpts *opts, const char *id);
47 void (*destroy)(TPMBackend *t);
49 /* initialize the backend */
50 int (*init)(TPMBackend *t, TPMState *s, TPMRecvDataCB *datacb);
51 /* start up the TPM on the backend */
52 int (*startup_tpm)(TPMBackend *t);
53 /* returns true if nothing will ever answer TPM requests */
54 bool (*had_startup_error)(TPMBackend *t);
56 size_t (*realloc_buffer)(TPMSizedBuffer *sb);
58 void (*deliver_request)(TPMBackend *t);
60 void (*reset)(TPMBackend *t);
62 void (*cancel_cmd)(TPMBackend *t);
64 bool (*get_tpm_established_flag)(TPMBackend *t);
79 #define TPM_TAG_RQU_COMMAND 0xc1
80 #define TPM_TAG_RQU_AUTH1_COMMAND 0xc2
81 #define TPM_TAG_RQU_AUTH2_COMMAND 0xc3
83 #define TPM_TAG_RSP_COMMAND 0xc4
84 #define TPM_TAG_RSP_AUTH1_COMMAND 0xc5
85 #define TPM_TAG_RSP_AUTH2_COMMAND 0xc6
89 #define TPM_ORD_GetTicks 0xf1
91 TPMBackend *qemu_find_tpm(const char *id);
92 int tpm_register_model(enum TpmModel model);
93 int tpm_register_driver(const TPMDriverOps *tdo);
94 void tpm_display_backend_drivers(void);
95 const TPMDriverOps *tpm_get_backend_driver(const char *type);
96 void tpm_write_fatal_error_response(uint8_t *out, uint32_t out_len);
98 extern const TPMDriverOps tpm_passthrough_driver;
100 #endif /* TPM_TPM_INT_H */