]> Git Repo - qemu.git/blob - hw/tpm/tpm_tis.h
Merge remote-tracking branch 'mst/tags/for_anthony' into staging
[qemu.git] / hw / tpm / tpm_tis.h
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 <[email protected]>
8  *  David Safford <[email protected]>
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
20 #include "hw/isa/isa.h"
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
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     uint8_t sts;
51     uint32_t inte;
52     uint32_t ints;
53
54     uint16_t w_offset;
55     uint16_t r_offset;
56     TPMSizedBuffer w_buffer;
57     TPMSizedBuffer r_buffer;
58 } TPMLocality;
59
60 typedef struct TPMTISEmuState {
61     QEMUBH *bh;
62     uint32_t offset;
63     uint8_t buf[TPM_TIS_BUFFER_MAX];
64
65     uint8_t active_locty;
66     uint8_t aborting_locty;
67     uint8_t next_locty;
68
69     TPMLocality loc[TPM_TIS_NUM_LOCALITIES];
70
71     qemu_irq irq;
72     uint32_t irq_num;
73 } TPMTISEmuState;
74
75 #endif /* TPM_TPM_TIS_H */
This page took 0.028628 seconds and 4 git commands to generate.