2 * tpm_tis.h - QEMU's TPM TIS common header
4 * Copyright (C) 2006,2010-2013 IBM Corporation
12 * This work is licensed under the terms of the GNU GPL, version 2 or later.
13 * See the COPYING file in the top-level directory.
15 * Implementation of the TIS interface according to specs found at
16 * http://www.trustedcomputinggroup.org. This implementation currently
17 * supports version 1.3, 21 March 2013
18 * In the developers menu choose the PC Client section then find the TIS
21 * TPM TIS for TPM 2 implementation following TCG PC Client Platform
22 * TPM Profile (PTP) Specification, Familiy 2.0, Revision 00.43
27 #include "sysemu/tpm_backend.h"
30 #define TPM_TIS_NUM_LOCALITIES 5 /* per spec */
31 #define TPM_TIS_LOCALITY_SHIFT 12
32 #define TPM_TIS_NO_LOCALITY 0xff
34 #define TPM_TIS_IS_VALID_LOCTY(x) ((x) < TPM_TIS_NUM_LOCALITIES)
36 #define TPM_TIS_BUFFER_MAX 4096
39 TPM_TIS_STATE_IDLE = 0,
41 TPM_TIS_STATE_COMPLETION,
42 TPM_TIS_STATE_EXECUTION,
43 TPM_TIS_STATE_RECEPTION,
46 /* locality data -- all fields are persisted */
47 typedef struct TPMLocality {
56 typedef struct TPMState {
59 unsigned char buffer[TPM_TIS_BUFFER_MAX];
63 uint8_t aborting_locty;
66 TPMLocality loc[TPM_TIS_NUM_LOCALITIES];
73 TPMBackend *be_driver;
74 TPMVersion be_tpm_version;
76 size_t be_buffer_size;
82 extern const VMStateDescription vmstate_locty;
83 extern const MemoryRegionOps tpm_tis_memory_ops;
85 int tpm_tis_pre_save(TPMState *s);
86 void tpm_tis_reset(TPMState *s);
87 enum TPMVersion tpm_tis_get_tpm_version(TPMState *s);
88 void tpm_tis_request_completed(TPMState *s, int ret);
90 #endif /* TPM_TPM_TIS_H */