1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
* Userspace interface for AMD Secure Encrypted Virtualization (SEV)
* platform management commands.
*
* Copyright (C) 2016-2017 Advanced Micro Devices, Inc.
*
* Author: Brijesh Singh <brijesh.singh@amd.com>
*
* SEV API specification is available at: https://developer.amd.com/sev/
*/
#ifndef __PSP_SEV_USER_H__
#define __PSP_SEV_USER_H__
#include <linux/types.h>
/**
* SEV platform commands
*/
enum {
SEV_FACTORY_RESET = 0,
SEV_PLATFORM_STATUS,
SEV_PEK_GEN,
SEV_PEK_CSR,
SEV_PDH_GEN,
SEV_PDH_CERT_EXPORT,
SEV_PEK_CERT_IMPORT,
SEV_GET_ID, /* This command is deprecated, use SEV_GET_ID2 */
SEV_GET_ID2,
SNP_PLATFORM_STATUS,
SNP_COMMIT,
SNP_SET_CONFIG,
SNP_VLEK_LOAD,
SEV_MAX,
};
/**
* SEV Firmware status code
*/
typedef enum {
/*
* This error code is not in the SEV spec. Its purpose is to convey that
* there was an error that prevented the SEV firmware from being called.
* The SEV API error codes are 16 bits, so the -1 value will not overlap
* with possible values from the specification.
*/
SEV_RET_NO_FW_CALL = -1,
SEV_RET_SUCCESS = 0,
SEV_RET_INVALID_PLATFORM_STATE,
SEV_RET_INVALID_GUEST_STATE,
SEV_RET_INAVLID_CONFIG,
SEV_RET_INVALID_CONFIG = SEV_RET_INAVLID_CONFIG,
SEV_RET_INVALID_LEN,
SEV_RET_ALREADY_OWNED,
SEV_RET_INVALID_CERTIFICATE,
SEV_RET_POLICY_FAILURE,
SEV_RET_INACTIVE,
SEV_RET_INVALID_ADDRESS,
SEV_RET_BAD_SIGNATURE,
SEV_RET_BAD_MEASUREMENT,
SEV_RET_ASID_OWNED,
SEV_RET_INVALID_ASID,
SEV_RET_WBINVD_REQUIRED,
SEV_RET_DFFLUSH_REQUIRED,
SEV_RET_INVALID_GUEST,
SEV_RET_INVALID_COMMAND,
SEV_RET_ACTIVE,
SEV_RET_HWSEV_RET_PLATFORM,
SEV_RET_HWSEV_RET_UNSAFE,
SEV_RET_UNSUPPORTED,
SEV_RET_INVALID_PARAM,
SEV_RET_RESOURCE_LIMIT,
SEV_RET_SECURE_DATA_INVALID,
SEV_RET_INVALID_KEY = 0x27,
SEV_RET_INVALID_PAGE_SIZE,
SEV_RET_INVALID_PAGE_STATE,
SEV_RET_INVALID_MDATA_ENTRY,
SEV_RET_INVALID_PAGE_OWNER,
SEV_RET_INVALID_PAGE_AEAD_OFLOW,
SEV_RET_RMP_INIT_REQUIRED,
SEV_RET_MAX,
} sev_ret_code;
/**
* struct sev_user_data_status - PLATFORM_STATUS command parameters
*
* @major: major API version
* @minor: minor API version
* @state: platform state
* @flags: platform config flags
* @build: firmware build id for API version
* @guest_count: number of active guests
*/
struct sev_user_data_status {
__u8 api_major; /* Out */
__u8 api_minor; /* Out */
__u8 state; /* Out */
__u32 flags; /* Out */
__u8 build; /* Out */
__u32 guest_count; /* Out */
} __packed;
#define SEV_STATUS_FLAGS_CONFIG_ES 0x0100
/**
* struct sev_user_data_pek_csr - PEK_CSR command parameters
*
* @address: PEK certificate chain
* @length: length of certificate
*/
struct sev_user_data_pek_csr {
__u64 address; /* In */
__u32 length; /* In/Out */
} __packed;
/**
* struct sev_user_data_cert_import - PEK_CERT_IMPORT command parameters
*
* @pek_address: PEK certificate chain
* @pek_len: length of PEK certificate
* @oca_address: OCA certificate chain
* @oca_len: length of OCA certificate
*/
struct sev_user_data_pek_cert_import {
__u64 pek_cert_address; /* In */
__u32 pek_cert_len; /* In */
__u64 oca_cert_address; /* In */
__u32 oca_cert_len; /* In */
} __packed;
/**
* struct sev_user_data_pdh_cert_export - PDH_CERT_EXPORT command parameters
*
* @pdh_address: PDH certificate address
* @pdh_len: length of PDH certificate
* @cert_chain_address: PDH certificate chain
* @cert_chain_len: length of PDH certificate chain
*/
struct sev_user_data_pdh_cert_export {
__u64 pdh_cert_address; /* In */
__u32 pdh_cert_len; /* In/Out */
__u64 cert_chain_address; /* In */
__u32 cert_chain_len; /* In/Out */
} __packed;
/**
* struct sev_user_data_get_id - GET_ID command parameters (deprecated)
*
* @socket1: Buffer to pass unique ID of first socket
* @socket2: Buffer to pass unique ID of second socket
*/
struct sev_user_data_get_id {
__u8 socket1[64]; /* Out */
__u8 socket2[64]; /* Out */
} __packed;
/**
* struct sev_user_data_get_id2 - GET_ID command parameters
* @address: Buffer to store unique ID
* @length: length of the unique ID
*/
struct sev_user_data_get_id2 {
__u64 address; /* In */
__u32 length; /* In/Out */
} __packed;
/**
* struct sev_user_data_snp_status - SNP status
*
* @api_major: API major version
* @api_minor: API minor version
* @state: current platform state
* @is_rmp_initialized: whether RMP is initialized or not
* @rsvd: reserved
* @build_id: firmware build id for the API version
* @mask_chip_id: whether chip id is present in attestation reports or not
* @mask_chip_key: whether attestation reports are signed or not
* @vlek_en: VLEK (Version Loaded Endorsement Key) hashstick is loaded
* @rsvd1: reserved
* @guest_count: the number of guest currently managed by the firmware
* @current_tcb_version: current TCB version
* @reported_tcb_version: reported TCB version
*/
struct sev_user_data_snp_status {
__u8 api_major; /* Out */
__u8 api_minor; /* Out */
__u8 state; /* Out */
__u8 is_rmp_initialized:1; /* Out */
__u8 rsvd:7;
__u32 build_id; /* Out */
__u32 mask_chip_id:1; /* Out */
__u32 mask_chip_key:1; /* Out */
__u32 vlek_en:1; /* Out */
__u32 rsvd1:29;
__u32 guest_count; /* Out */
__u64 current_tcb_version; /* Out */
__u64 reported_tcb_version; /* Out */
} __packed;
/**
* struct sev_user_data_snp_config - system wide configuration value for SNP.
*
* @reported_tcb: the TCB version to report in the guest attestation report.
* @mask_chip_id: whether chip id is present in attestation reports or not
* @mask_chip_key: whether attestation reports are signed or not
* @rsvd: reserved
* @rsvd1: reserved
*/
struct sev_user_data_snp_config {
__u64 reported_tcb ; /* In */
__u32 mask_chip_id:1; /* In */
__u32 mask_chip_key:1; /* In */
__u32 rsvd:30; /* In */
__u8 rsvd1[52];
} __packed;
/**
* struct sev_data_snp_vlek_load - SNP_VLEK_LOAD structure
*
* @len: length of the command buffer read by the PSP
* @vlek_wrapped_version: version of wrapped VLEK hashstick (Must be 0h)
* @rsvd: reserved
* @vlek_wrapped_address: address of a wrapped VLEK hashstick
* (struct sev_user_data_snp_wrapped_vlek_hashstick)
*/
struct sev_user_data_snp_vlek_load {
__u32 len; /* In */
__u8 vlek_wrapped_version; /* In */
__u8 rsvd[3]; /* In */
__u64 vlek_wrapped_address; /* In */
} __packed;
/**
* struct sev_user_data_snp_vlek_wrapped_vlek_hashstick - Wrapped VLEK data
*
* @data: Opaque data provided by AMD KDS (as described in SEV-SNP Firmware ABI
* 1.54, SNP_VLEK_LOAD)
*/
struct sev_user_data_snp_wrapped_vlek_hashstick {
__u8 data[432]; /* In */
} __packed;
/**
* struct sev_issue_cmd - SEV ioctl parameters
*
* @cmd: SEV commands to execute
* @opaque: pointer to the command structure
* @error: SEV FW return code on failure
*/
struct sev_issue_cmd {
__u32 cmd; /* In */
__u64 data; /* In */
__u32 error; /* Out */
} __packed;
#define SEV_IOC_TYPE 'S'
#define SEV_ISSUE_CMD _IOWR(SEV_IOC_TYPE, 0x0, struct sev_issue_cmd)
#endif /* __PSP_USER_SEV_H */
|
