projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| d1a0cf73 SB |
1 | /* |
| 2 | * tpm_tis.h - QEMU's TPM TIS interface emulator | |
| 3 | * | |
| 4 | * Copyright (C) 2006, 2010-2013 IBM Corporation | |
| 5 | * | |
| 6 | * Authors: | |
| 7 | * Stefan Berger <stefanb@us.ibm.com> | |
| 8 | * David Safford <safford@us.ibm.com> | |
| 9 | * | |
| 10 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
| 11 | * See the COPYING file in the top-level directory. | |
| 12 | * | |
| 13 | * Implementation of the TIS interface according to specs found at | |
| 14 | * http://www.trustedcomputinggroup.org | |
| 15 | * | |
| 16 | */ | |
| 17 | #ifndef TPM_TPM_TIS_H | |
| 18 | #define TPM_TPM_TIS_H | |
| 19 | ||
| 0d09e41a | 20 | #include "hw/isa/isa.h" |
| d1a0cf73 SB |
21 | #include "qemu-common.h" |
| 22 | ||
| 23 | #define TPM_TIS_ADDR_BASE 0xFED40000 | |
| 24 | ||
| 25 | #define TPM_TIS_NUM_LOCALITIES 5 /* per spec */ | |
| 26 | #define TPM_TIS_LOCALITY_SHIFT 12 | |
| 27 | #define TPM_TIS_NO_LOCALITY 0xff | |
| 28 | ||
| 29 | #define TPM_TIS_IS_VALID_LOCTY(x) ((x) < TPM_TIS_NUM_LOCALITIES) | |
| 30 | ||
| 31 | #define TPM_TIS_IRQ 5 | |
| 32 | ||
| 33 | #define TPM_TIS_BUFFER_MAX 4096 | |
| 34 | ||
| 35 | #define TYPE_TPM_TIS "tpm-tis" | |
| 36 | ||
| 37 | ||
| 8243b046 | 38 | struct TPMSizedBuffer { |
| d1a0cf73 SB |
39 | uint32_t size; |
| 40 | uint8_t *buffer; | |
| 8243b046 | 41 | }; |
| d1a0cf73 SB |
42 | |
| 43 | typedef enum { | |
| 44 | TPM_TIS_STATE_IDLE = 0, | |
| 45 | TPM_TIS_STATE_READY, | |
| 46 | TPM_TIS_STATE_COMPLETION, | |
| 47 | TPM_TIS_STATE_EXECUTION, | |
| 48 | TPM_TIS_STATE_RECEPTION, | |
| 49 | } TPMTISState; | |
| 50 | ||
| 51 | /* locality data -- all fields are persisted */ | |
| 52 | typedef struct TPMLocality { | |
| 53 | TPMTISState state; | |
| 54 | uint8_t access; | |
| 55 | uint8_t sts; | |
| 56 | uint32_t inte; | |
| 57 | uint32_t ints; | |
| 58 | ||
| 59 | uint16_t w_offset; | |
| 60 | uint16_t r_offset; | |
| 61 | TPMSizedBuffer w_buffer; | |
| 62 | TPMSizedBuffer r_buffer; | |
| 63 | } TPMLocality; | |
| 64 | ||
| 65 | typedef struct TPMTISEmuState { | |
| 66 | QEMUBH *bh; | |
| 67 | uint32_t offset; | |
| 68 | uint8_t buf[TPM_TIS_BUFFER_MAX]; | |
| 69 | ||
| 70 | uint8_t active_locty; | |
| 71 | uint8_t aborting_locty; | |
| 72 | uint8_t next_locty; | |
| 73 | ||
| 74 | TPMLocality loc[TPM_TIS_NUM_LOCALITIES]; | |
| 75 | ||
| 76 | qemu_irq irq; | |
| 77 | uint32_t irq_num; | |
| 78 | } TPMTISEmuState; | |
| 79 | ||
| 80 | #endif /* TPM_TPM_TIS_H */ |