projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| ac90053d EA |
1 | /* |
| 2 | * tpm_tis.h - QEMU's TPM TIS common header | |
| 3 | * | |
| 4 | * Copyright (C) 2006,2010-2013 IBM Corporation | |
| 5 | * | |
| 6 | * Authors: | |
| 7 | * Stefan Berger <[email protected]> | |
| 8 | * David Safford <[email protected]> | |
| 9 | * | |
| 10 | * Xen 4 support: Andrease Niederl <[email protected]> | |
| 11 | * | |
| 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. | |
| 14 | * | |
| 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 | |
| 19 | * specification. | |
| 20 | * | |
| 21 | * TPM TIS for TPM 2 implementation following TCG PC Client Platform | |
| 22 | * TPM Profile (PTP) Specification, Familiy 2.0, Revision 00.43 | |
| 23 | */ | |
| 24 | #ifndef TPM_TPM_TIS_H | |
| 25 | #define TPM_TPM_TIS_H | |
| 26 | ||
| ac90053d EA |
27 | #include "sysemu/tpm_backend.h" |
| 28 | #include "tpm_ppi.h" | |
| 29 | ||
| 30 | #define TPM_TIS_NUM_LOCALITIES 5 /* per spec */ | |
| 31 | #define TPM_TIS_LOCALITY_SHIFT 12 | |
| 32 | #define TPM_TIS_NO_LOCALITY 0xff | |
| 33 | ||
| 34 | #define TPM_TIS_IS_VALID_LOCTY(x) ((x) < TPM_TIS_NUM_LOCALITIES) | |
| 35 | ||
| 36 | #define TPM_TIS_BUFFER_MAX 4096 | |
| 37 | ||
| 38 | typedef enum { | |
| 39 | TPM_TIS_STATE_IDLE = 0, | |
| 40 | TPM_TIS_STATE_READY, | |
| 41 | TPM_TIS_STATE_COMPLETION, | |
| 42 | TPM_TIS_STATE_EXECUTION, | |
| 43 | TPM_TIS_STATE_RECEPTION, | |
| 44 | } TPMTISState; | |
| 45 | ||
| 46 | /* locality data -- all fields are persisted */ | |
| 47 | typedef struct TPMLocality { | |
| 48 | TPMTISState state; | |
| 49 | uint8_t access; | |
| 50 | uint32_t sts; | |
| 51 | uint32_t iface_id; | |
| 52 | uint32_t inte; | |
| 53 | uint32_t ints; | |
| 54 | } TPMLocality; | |
| 55 | ||
| 56 | typedef struct TPMState { | |
| 57 | MemoryRegion mmio; | |
| 58 | ||
| 59 | unsigned char buffer[TPM_TIS_BUFFER_MAX]; | |
| 60 | uint16_t rw_offset; | |
| 61 | ||
| 62 | uint8_t active_locty; | |
| 63 | uint8_t aborting_locty; | |
| 64 | uint8_t next_locty; | |
| 65 | ||
| 66 | TPMLocality loc[TPM_TIS_NUM_LOCALITIES]; | |
| 67 | ||
| 68 | qemu_irq irq; | |
| 69 | uint32_t irq_num; | |
| 70 | ||
| 71 | TPMBackendCmd cmd; | |
| 72 | ||
| 73 | TPMBackend *be_driver; | |
| 74 | TPMVersion be_tpm_version; | |
| 75 | ||
| 76 | size_t be_buffer_size; | |
| 77 | ||
| 78 | bool ppi_enabled; | |
| 79 | TPMPPI ppi; | |
| 80 | } TPMState; | |
| 81 | ||
| 82 | extern const VMStateDescription vmstate_locty; | |
| 83 | extern const MemoryRegionOps tpm_tis_memory_ops; | |
| 84 | ||
| 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); | |
| 89 | ||
| 90 | #endif /* TPM_TPM_TIS_H */ |