1/* SPDX-License-Identifier: GPL-2.0 */
2
3#ifndef __LINUX_TPM_EVENTLOG_H__
4#define __LINUX_TPM_EVENTLOG_H__
5
6#include <linux/tpm.h>
7
8#define TCG_EVENT_NAME_LEN_MAX 255
9#define MAX_TEXT_EVENT 1000 /* Max event string length */
10#define ACPI_TCPA_SIG "TCPA" /* 0x41504354 /'TCPA' */
11
12#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 0x1
13#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_2 0x2
14
15#ifdef CONFIG_PPC64
16#define do_endian_conversion(x) be32_to_cpu(x)
17#else
18#define do_endian_conversion(x) x
19#endif
20
21enum bios_platform_class {
22 BIOS_CLIENT = 0x00,
23 BIOS_SERVER = 0x01,
24};
25
26struct tcpa_event {
27 u32 pcr_index;
28 u32 event_type;
29 u8 pcr_value[20]; /* SHA1 */
30 u32 event_size;
31 u8 event_data[0];
32};
33
34enum tcpa_event_types {
35 PREBOOT = 0,
36 POST_CODE,
37 UNUSED,
38 NO_ACTION,
39 SEPARATOR,
40 ACTION,
41 EVENT_TAG,
42 SCRTM_CONTENTS,
43 SCRTM_VERSION,
44 CPU_MICROCODE,
45 PLATFORM_CONFIG_FLAGS,
46 TABLE_OF_DEVICES,
47 COMPACT_HASH,
48 IPL,
49 IPL_PARTITION_DATA,
50 NONHOST_CODE,
51 NONHOST_CONFIG,
52 NONHOST_INFO,
53};
54
55struct tcpa_pc_event {
56 u32 event_id;
57 u32 event_size;
58 u8 event_data[0];
59};
60
61enum tcpa_pc_event_ids {
62 SMBIOS = 1,
63 BIS_CERT,
64 POST_BIOS_ROM,
65 ESCD,
66 CMOS,
67 NVRAM,
68 OPTION_ROM_EXEC,
69 OPTION_ROM_CONFIG,
70 OPTION_ROM_MICROCODE = 10,
71 S_CRTM_VERSION,
72 S_CRTM_CONTENTS,
73 POST_CONTENTS,
74 HOST_TABLE_OF_DEVICES,
75};
76
77/* http://www.trustedcomputinggroup.org/tcg-efi-protocol-specification/ */
78
79struct tcg_efi_specid_event_algs {
80 u16 alg_id;
81 u16 digest_size;
82} __packed;
83
84struct tcg_efi_specid_event_head {
85 u8 signature[16];
86 u32 platform_class;
87 u8 spec_version_minor;
88 u8 spec_version_major;
89 u8 spec_errata;
90 u8 uintnsize;
91 u32 num_algs;
92 struct tcg_efi_specid_event_algs digest_sizes[];
93} __packed;
94
95struct tcg_pcr_event {
96 u32 pcr_idx;
97 u32 event_type;
98 u8 digest[20];
99 u32 event_size;
100 u8 event[0];
101} __packed;
102
103struct tcg_event_field {
104 u32 event_size;
105 u8 event[0];
106} __packed;
107
108struct tcg_pcr_event2_head {
109 u32 pcr_idx;
110 u32 event_type;
111 u32 count;
112 struct tpm_digest digests[];
113} __packed;
114
115#endif
116