1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * AMD Secure Encrypted Virtualization (SEV) driver interface |
4 | * |
5 | * Copyright (C) 2016-2017 Advanced Micro Devices, Inc. |
6 | * |
7 | * Author: Brijesh Singh <brijesh.singh@amd.com> |
8 | * |
9 | * SEV API spec is available at https://developer.amd.com/sev |
10 | */ |
11 | |
12 | #ifndef __PSP_SEV_H__ |
13 | #define __PSP_SEV_H__ |
14 | |
15 | #include <uapi/linux/psp-sev.h> |
16 | |
17 | #define SEV_FW_BLOB_MAX_SIZE 0x4000 /* 16KB */ |
18 | |
19 | /** |
20 | * SEV platform state |
21 | */ |
22 | enum sev_state { |
23 | SEV_STATE_UNINIT = 0x0, |
24 | SEV_STATE_INIT = 0x1, |
25 | SEV_STATE_WORKING = 0x2, |
26 | |
27 | SEV_STATE_MAX |
28 | }; |
29 | |
30 | /** |
31 | * SEV platform and guest management commands |
32 | */ |
33 | enum sev_cmd { |
34 | /* platform commands */ |
35 | SEV_CMD_INIT = 0x001, |
36 | SEV_CMD_SHUTDOWN = 0x002, |
37 | SEV_CMD_FACTORY_RESET = 0x003, |
38 | SEV_CMD_PLATFORM_STATUS = 0x004, |
39 | SEV_CMD_PEK_GEN = 0x005, |
40 | SEV_CMD_PEK_CSR = 0x006, |
41 | SEV_CMD_PEK_CERT_IMPORT = 0x007, |
42 | SEV_CMD_PDH_CERT_EXPORT = 0x008, |
43 | SEV_CMD_PDH_GEN = 0x009, |
44 | SEV_CMD_DF_FLUSH = 0x00A, |
45 | SEV_CMD_DOWNLOAD_FIRMWARE = 0x00B, |
46 | SEV_CMD_GET_ID = 0x00C, |
47 | SEV_CMD_INIT_EX = 0x00D, |
48 | |
49 | /* Guest commands */ |
50 | SEV_CMD_DECOMMISSION = 0x020, |
51 | SEV_CMD_ACTIVATE = 0x021, |
52 | SEV_CMD_DEACTIVATE = 0x022, |
53 | SEV_CMD_GUEST_STATUS = 0x023, |
54 | |
55 | /* Guest launch commands */ |
56 | SEV_CMD_LAUNCH_START = 0x030, |
57 | SEV_CMD_LAUNCH_UPDATE_DATA = 0x031, |
58 | SEV_CMD_LAUNCH_UPDATE_VMSA = 0x032, |
59 | SEV_CMD_LAUNCH_MEASURE = 0x033, |
60 | SEV_CMD_LAUNCH_UPDATE_SECRET = 0x034, |
61 | SEV_CMD_LAUNCH_FINISH = 0x035, |
62 | SEV_CMD_ATTESTATION_REPORT = 0x036, |
63 | |
64 | /* Guest migration commands (outgoing) */ |
65 | SEV_CMD_SEND_START = 0x040, |
66 | SEV_CMD_SEND_UPDATE_DATA = 0x041, |
67 | SEV_CMD_SEND_UPDATE_VMSA = 0x042, |
68 | SEV_CMD_SEND_FINISH = 0x043, |
69 | SEV_CMD_SEND_CANCEL = 0x044, |
70 | |
71 | /* Guest migration commands (incoming) */ |
72 | SEV_CMD_RECEIVE_START = 0x050, |
73 | SEV_CMD_RECEIVE_UPDATE_DATA = 0x051, |
74 | SEV_CMD_RECEIVE_UPDATE_VMSA = 0x052, |
75 | SEV_CMD_RECEIVE_FINISH = 0x053, |
76 | |
77 | /* Guest debug commands */ |
78 | SEV_CMD_DBG_DECRYPT = 0x060, |
79 | SEV_CMD_DBG_ENCRYPT = 0x061, |
80 | |
81 | SEV_CMD_MAX, |
82 | }; |
83 | |
84 | /** |
85 | * struct sev_data_init - INIT command parameters |
86 | * |
87 | * @flags: processing flags |
88 | * @tmr_address: system physical address used for SEV-ES |
89 | * @tmr_len: len of tmr_address |
90 | */ |
91 | struct sev_data_init { |
92 | u32 flags; /* In */ |
93 | u32 reserved; /* In */ |
94 | u64 tmr_address; /* In */ |
95 | u32 tmr_len; /* In */ |
96 | } __packed; |
97 | |
98 | /** |
99 | * struct sev_data_init_ex - INIT_EX command parameters |
100 | * |
101 | * @length: len of the command buffer read by the PSP |
102 | * @flags: processing flags |
103 | * @tmr_address: system physical address used for SEV-ES |
104 | * @tmr_len: len of tmr_address |
105 | * @nv_address: system physical address used for PSP NV storage |
106 | * @nv_len: len of nv_address |
107 | */ |
108 | struct sev_data_init_ex { |
109 | u32 length; /* In */ |
110 | u32 flags; /* In */ |
111 | u64 tmr_address; /* In */ |
112 | u32 tmr_len; /* In */ |
113 | u32 reserved; /* In */ |
114 | u64 nv_address; /* In/Out */ |
115 | u32 nv_len; /* In */ |
116 | } __packed; |
117 | |
118 | #define SEV_INIT_FLAGS_SEV_ES 0x01 |
119 | |
120 | /** |
121 | * struct sev_data_pek_csr - PEK_CSR command parameters |
122 | * |
123 | * @address: PEK certificate chain |
124 | * @len: len of certificate |
125 | */ |
126 | struct sev_data_pek_csr { |
127 | u64 address; /* In */ |
128 | u32 len; /* In/Out */ |
129 | } __packed; |
130 | |
131 | /** |
132 | * struct sev_data_cert_import - PEK_CERT_IMPORT command parameters |
133 | * |
134 | * @pek_address: PEK certificate chain |
135 | * @pek_len: len of PEK certificate |
136 | * @oca_address: OCA certificate chain |
137 | * @oca_len: len of OCA certificate |
138 | */ |
139 | struct sev_data_pek_cert_import { |
140 | u64 pek_cert_address; /* In */ |
141 | u32 pek_cert_len; /* In */ |
142 | u32 reserved; /* In */ |
143 | u64 oca_cert_address; /* In */ |
144 | u32 oca_cert_len; /* In */ |
145 | } __packed; |
146 | |
147 | /** |
148 | * struct sev_data_download_firmware - DOWNLOAD_FIRMWARE command parameters |
149 | * |
150 | * @address: physical address of firmware image |
151 | * @len: len of the firmware image |
152 | */ |
153 | struct sev_data_download_firmware { |
154 | u64 address; /* In */ |
155 | u32 len; /* In */ |
156 | } __packed; |
157 | |
158 | /** |
159 | * struct sev_data_get_id - GET_ID command parameters |
160 | * |
161 | * @address: physical address of region to place unique CPU ID(s) |
162 | * @len: len of the region |
163 | */ |
164 | struct sev_data_get_id { |
165 | u64 address; /* In */ |
166 | u32 len; /* In/Out */ |
167 | } __packed; |
168 | /** |
169 | * struct sev_data_pdh_cert_export - PDH_CERT_EXPORT command parameters |
170 | * |
171 | * @pdh_address: PDH certificate address |
172 | * @pdh_len: len of PDH certificate |
173 | * @cert_chain_address: PDH certificate chain |
174 | * @cert_chain_len: len of PDH certificate chain |
175 | */ |
176 | struct sev_data_pdh_cert_export { |
177 | u64 pdh_cert_address; /* In */ |
178 | u32 pdh_cert_len; /* In/Out */ |
179 | u32 reserved; /* In */ |
180 | u64 cert_chain_address; /* In */ |
181 | u32 cert_chain_len; /* In/Out */ |
182 | } __packed; |
183 | |
184 | /** |
185 | * struct sev_data_decommission - DECOMMISSION command parameters |
186 | * |
187 | * @handle: handle of the VM to decommission |
188 | */ |
189 | struct sev_data_decommission { |
190 | u32 handle; /* In */ |
191 | } __packed; |
192 | |
193 | /** |
194 | * struct sev_data_activate - ACTIVATE command parameters |
195 | * |
196 | * @handle: handle of the VM to activate |
197 | * @asid: asid assigned to the VM |
198 | */ |
199 | struct sev_data_activate { |
200 | u32 handle; /* In */ |
201 | u32 asid; /* In */ |
202 | } __packed; |
203 | |
204 | /** |
205 | * struct sev_data_deactivate - DEACTIVATE command parameters |
206 | * |
207 | * @handle: handle of the VM to deactivate |
208 | */ |
209 | struct sev_data_deactivate { |
210 | u32 handle; /* In */ |
211 | } __packed; |
212 | |
213 | /** |
214 | * struct sev_data_guest_status - SEV GUEST_STATUS command parameters |
215 | * |
216 | * @handle: handle of the VM to retrieve status |
217 | * @policy: policy information for the VM |
218 | * @asid: current ASID of the VM |
219 | * @state: current state of the VM |
220 | */ |
221 | struct sev_data_guest_status { |
222 | u32 handle; /* In */ |
223 | u32 policy; /* Out */ |
224 | u32 asid; /* Out */ |
225 | u8 state; /* Out */ |
226 | } __packed; |
227 | |
228 | /** |
229 | * struct sev_data_launch_start - LAUNCH_START command parameters |
230 | * |
231 | * @handle: handle assigned to the VM |
232 | * @policy: guest launch policy |
233 | * @dh_cert_address: physical address of DH certificate blob |
234 | * @dh_cert_len: len of DH certificate blob |
235 | * @session_address: physical address of session parameters |
236 | * @session_len: len of session parameters |
237 | */ |
238 | struct sev_data_launch_start { |
239 | u32 handle; /* In/Out */ |
240 | u32 policy; /* In */ |
241 | u64 dh_cert_address; /* In */ |
242 | u32 dh_cert_len; /* In */ |
243 | u32 reserved; /* In */ |
244 | u64 session_address; /* In */ |
245 | u32 session_len; /* In */ |
246 | } __packed; |
247 | |
248 | /** |
249 | * struct sev_data_launch_update_data - LAUNCH_UPDATE_DATA command parameter |
250 | * |
251 | * @handle: handle of the VM to update |
252 | * @len: len of memory to be encrypted |
253 | * @address: physical address of memory region to encrypt |
254 | */ |
255 | struct sev_data_launch_update_data { |
256 | u32 handle; /* In */ |
257 | u32 reserved; |
258 | u64 address; /* In */ |
259 | u32 len; /* In */ |
260 | } __packed; |
261 | |
262 | /** |
263 | * struct sev_data_launch_update_vmsa - LAUNCH_UPDATE_VMSA command |
264 | * |
265 | * @handle: handle of the VM |
266 | * @address: physical address of memory region to encrypt |
267 | * @len: len of memory region to encrypt |
268 | */ |
269 | struct sev_data_launch_update_vmsa { |
270 | u32 handle; /* In */ |
271 | u32 reserved; |
272 | u64 address; /* In */ |
273 | u32 len; /* In */ |
274 | } __packed; |
275 | |
276 | /** |
277 | * struct sev_data_launch_measure - LAUNCH_MEASURE command parameters |
278 | * |
279 | * @handle: handle of the VM to process |
280 | * @address: physical address containing the measurement blob |
281 | * @len: len of measurement blob |
282 | */ |
283 | struct sev_data_launch_measure { |
284 | u32 handle; /* In */ |
285 | u32 reserved; |
286 | u64 address; /* In */ |
287 | u32 len; /* In/Out */ |
288 | } __packed; |
289 | |
290 | /** |
291 | * struct sev_data_launch_secret - LAUNCH_SECRET command parameters |
292 | * |
293 | * @handle: handle of the VM to process |
294 | * @hdr_address: physical address containing the packet header |
295 | * @hdr_len: len of packet header |
296 | * @guest_address: system physical address of guest memory region |
297 | * @guest_len: len of guest_paddr |
298 | * @trans_address: physical address of transport memory buffer |
299 | * @trans_len: len of transport memory buffer |
300 | */ |
301 | struct sev_data_launch_secret { |
302 | u32 handle; /* In */ |
303 | u32 reserved1; |
304 | u64 hdr_address; /* In */ |
305 | u32 hdr_len; /* In */ |
306 | u32 reserved2; |
307 | u64 guest_address; /* In */ |
308 | u32 guest_len; /* In */ |
309 | u32 reserved3; |
310 | u64 trans_address; /* In */ |
311 | u32 trans_len; /* In */ |
312 | } __packed; |
313 | |
314 | /** |
315 | * struct sev_data_launch_finish - LAUNCH_FINISH command parameters |
316 | * |
317 | * @handle: handle of the VM to process |
318 | */ |
319 | struct sev_data_launch_finish { |
320 | u32 handle; /* In */ |
321 | } __packed; |
322 | |
323 | /** |
324 | * struct sev_data_send_start - SEND_START command parameters |
325 | * |
326 | * @handle: handle of the VM to process |
327 | * @policy: policy information for the VM |
328 | * @pdh_cert_address: physical address containing PDH certificate |
329 | * @pdh_cert_len: len of PDH certificate |
330 | * @plat_certs_address: physical address containing platform certificate |
331 | * @plat_certs_len: len of platform certificate |
332 | * @amd_certs_address: physical address containing AMD certificate |
333 | * @amd_certs_len: len of AMD certificate |
334 | * @session_address: physical address containing Session data |
335 | * @session_len: len of session data |
336 | */ |
337 | struct sev_data_send_start { |
338 | u32 handle; /* In */ |
339 | u32 policy; /* Out */ |
340 | u64 pdh_cert_address; /* In */ |
341 | u32 pdh_cert_len; /* In */ |
342 | u32 reserved1; |
343 | u64 plat_certs_address; /* In */ |
344 | u32 plat_certs_len; /* In */ |
345 | u32 reserved2; |
346 | u64 amd_certs_address; /* In */ |
347 | u32 amd_certs_len; /* In */ |
348 | u32 reserved3; |
349 | u64 session_address; /* In */ |
350 | u32 session_len; /* In/Out */ |
351 | } __packed; |
352 | |
353 | /** |
354 | * struct sev_data_send_update - SEND_UPDATE_DATA command |
355 | * |
356 | * @handle: handle of the VM to process |
357 | * @hdr_address: physical address containing packet header |
358 | * @hdr_len: len of packet header |
359 | * @guest_address: physical address of guest memory region to send |
360 | * @guest_len: len of guest memory region to send |
361 | * @trans_address: physical address of host memory region |
362 | * @trans_len: len of host memory region |
363 | */ |
364 | struct sev_data_send_update_data { |
365 | u32 handle; /* In */ |
366 | u32 reserved1; |
367 | u64 hdr_address; /* In */ |
368 | u32 hdr_len; /* In/Out */ |
369 | u32 reserved2; |
370 | u64 guest_address; /* In */ |
371 | u32 guest_len; /* In */ |
372 | u32 reserved3; |
373 | u64 trans_address; /* In */ |
374 | u32 trans_len; /* In */ |
375 | } __packed; |
376 | |
377 | /** |
378 | * struct sev_data_send_update - SEND_UPDATE_VMSA command |
379 | * |
380 | * @handle: handle of the VM to process |
381 | * @hdr_address: physical address containing packet header |
382 | * @hdr_len: len of packet header |
383 | * @guest_address: physical address of guest memory region to send |
384 | * @guest_len: len of guest memory region to send |
385 | * @trans_address: physical address of host memory region |
386 | * @trans_len: len of host memory region |
387 | */ |
388 | struct sev_data_send_update_vmsa { |
389 | u32 handle; /* In */ |
390 | u64 hdr_address; /* In */ |
391 | u32 hdr_len; /* In/Out */ |
392 | u32 reserved2; |
393 | u64 guest_address; /* In */ |
394 | u32 guest_len; /* In */ |
395 | u32 reserved3; |
396 | u64 trans_address; /* In */ |
397 | u32 trans_len; /* In */ |
398 | } __packed; |
399 | |
400 | /** |
401 | * struct sev_data_send_finish - SEND_FINISH command parameters |
402 | * |
403 | * @handle: handle of the VM to process |
404 | */ |
405 | struct sev_data_send_finish { |
406 | u32 handle; /* In */ |
407 | } __packed; |
408 | |
409 | /** |
410 | * struct sev_data_send_cancel - SEND_CANCEL command parameters |
411 | * |
412 | * @handle: handle of the VM to process |
413 | */ |
414 | struct sev_data_send_cancel { |
415 | u32 handle; /* In */ |
416 | } __packed; |
417 | |
418 | /** |
419 | * struct sev_data_receive_start - RECEIVE_START command parameters |
420 | * |
421 | * @handle: handle of the VM to perform receive operation |
422 | * @pdh_cert_address: system physical address containing PDH certificate blob |
423 | * @pdh_cert_len: len of PDH certificate blob |
424 | * @session_address: system physical address containing session blob |
425 | * @session_len: len of session blob |
426 | */ |
427 | struct sev_data_receive_start { |
428 | u32 handle; /* In/Out */ |
429 | u32 policy; /* In */ |
430 | u64 pdh_cert_address; /* In */ |
431 | u32 pdh_cert_len; /* In */ |
432 | u32 reserved1; |
433 | u64 session_address; /* In */ |
434 | u32 session_len; /* In */ |
435 | } __packed; |
436 | |
437 | /** |
438 | * struct sev_data_receive_update_data - RECEIVE_UPDATE_DATA command parameters |
439 | * |
440 | * @handle: handle of the VM to update |
441 | * @hdr_address: physical address containing packet header blob |
442 | * @hdr_len: len of packet header |
443 | * @guest_address: system physical address of guest memory region |
444 | * @guest_len: len of guest memory region |
445 | * @trans_address: system physical address of transport buffer |
446 | * @trans_len: len of transport buffer |
447 | */ |
448 | struct sev_data_receive_update_data { |
449 | u32 handle; /* In */ |
450 | u32 reserved1; |
451 | u64 hdr_address; /* In */ |
452 | u32 hdr_len; /* In */ |
453 | u32 reserved2; |
454 | u64 guest_address; /* In */ |
455 | u32 guest_len; /* In */ |
456 | u32 reserved3; |
457 | u64 trans_address; /* In */ |
458 | u32 trans_len; /* In */ |
459 | } __packed; |
460 | |
461 | /** |
462 | * struct sev_data_receive_update_vmsa - RECEIVE_UPDATE_VMSA command parameters |
463 | * |
464 | * @handle: handle of the VM to update |
465 | * @hdr_address: physical address containing packet header blob |
466 | * @hdr_len: len of packet header |
467 | * @guest_address: system physical address of guest memory region |
468 | * @guest_len: len of guest memory region |
469 | * @trans_address: system physical address of transport buffer |
470 | * @trans_len: len of transport buffer |
471 | */ |
472 | struct sev_data_receive_update_vmsa { |
473 | u32 handle; /* In */ |
474 | u32 reserved1; |
475 | u64 hdr_address; /* In */ |
476 | u32 hdr_len; /* In */ |
477 | u32 reserved2; |
478 | u64 guest_address; /* In */ |
479 | u32 guest_len; /* In */ |
480 | u32 reserved3; |
481 | u64 trans_address; /* In */ |
482 | u32 trans_len; /* In */ |
483 | } __packed; |
484 | |
485 | /** |
486 | * struct sev_data_receive_finish - RECEIVE_FINISH command parameters |
487 | * |
488 | * @handle: handle of the VM to finish |
489 | */ |
490 | struct sev_data_receive_finish { |
491 | u32 handle; /* In */ |
492 | } __packed; |
493 | |
494 | /** |
495 | * struct sev_data_dbg - DBG_ENCRYPT/DBG_DECRYPT command parameters |
496 | * |
497 | * @handle: handle of the VM to perform debug operation |
498 | * @src_addr: source address of data to operate on |
499 | * @dst_addr: destination address of data to operate on |
500 | * @len: len of data to operate on |
501 | */ |
502 | struct sev_data_dbg { |
503 | u32 handle; /* In */ |
504 | u32 reserved; |
505 | u64 src_addr; /* In */ |
506 | u64 dst_addr; /* In */ |
507 | u32 len; /* In */ |
508 | } __packed; |
509 | |
510 | /** |
511 | * struct sev_data_attestation_report - SEV_ATTESTATION_REPORT command parameters |
512 | * |
513 | * @handle: handle of the VM |
514 | * @mnonce: a random nonce that will be included in the report. |
515 | * @address: physical address where the report will be copied. |
516 | * @len: length of the physical buffer. |
517 | */ |
518 | struct sev_data_attestation_report { |
519 | u32 handle; /* In */ |
520 | u32 reserved; |
521 | u64 address; /* In */ |
522 | u8 mnonce[16]; /* In */ |
523 | u32 len; /* In/Out */ |
524 | } __packed; |
525 | |
526 | #ifdef CONFIG_CRYPTO_DEV_SP_PSP |
527 | |
528 | /** |
529 | * sev_platform_init - perform SEV INIT command |
530 | * |
531 | * @error: SEV command return code |
532 | * |
533 | * Returns: |
534 | * 0 if the SEV successfully processed the command |
535 | * -%ENODEV if the SEV device is not available |
536 | * -%ENOTSUPP if the SEV does not support SEV |
537 | * -%ETIMEDOUT if the SEV command timed out |
538 | * -%EIO if the SEV returned a non-zero return code |
539 | */ |
540 | int sev_platform_init(int *error); |
541 | |
542 | /** |
543 | * sev_platform_status - perform SEV PLATFORM_STATUS command |
544 | * |
545 | * @status: sev_user_data_status structure to be processed |
546 | * @error: SEV command return code |
547 | * |
548 | * Returns: |
549 | * 0 if the SEV successfully processed the command |
550 | * -%ENODEV if the SEV device is not available |
551 | * -%ENOTSUPP if the SEV does not support SEV |
552 | * -%ETIMEDOUT if the SEV command timed out |
553 | * -%EIO if the SEV returned a non-zero return code |
554 | */ |
555 | int sev_platform_status(struct sev_user_data_status *status, int *error); |
556 | |
557 | /** |
558 | * sev_issue_cmd_external_user - issue SEV command by other driver with a file |
559 | * handle. |
560 | * |
561 | * This function can be used by other drivers to issue a SEV command on |
562 | * behalf of userspace. The caller must pass a valid SEV file descriptor |
563 | * so that we know that it has access to SEV device. |
564 | * |
565 | * @filep - SEV device file pointer |
566 | * @cmd - command to issue |
567 | * @data - command buffer |
568 | * @error: SEV command return code |
569 | * |
570 | * Returns: |
571 | * 0 if the SEV successfully processed the command |
572 | * -%ENODEV if the SEV device is not available |
573 | * -%ENOTSUPP if the SEV does not support SEV |
574 | * -%ETIMEDOUT if the SEV command timed out |
575 | * -%EIO if the SEV returned a non-zero return code |
576 | * -%EINVAL if the SEV file descriptor is not valid |
577 | */ |
578 | int sev_issue_cmd_external_user(struct file *filep, unsigned int id, |
579 | void *data, int *error); |
580 | |
581 | /** |
582 | * sev_guest_deactivate - perform SEV DEACTIVATE command |
583 | * |
584 | * @deactivate: sev_data_deactivate structure to be processed |
585 | * @sev_ret: sev command return code |
586 | * |
587 | * Returns: |
588 | * 0 if the sev successfully processed the command |
589 | * -%ENODEV if the sev device is not available |
590 | * -%ENOTSUPP if the sev does not support SEV |
591 | * -%ETIMEDOUT if the sev command timed out |
592 | * -%EIO if the sev returned a non-zero return code |
593 | */ |
594 | int sev_guest_deactivate(struct sev_data_deactivate *data, int *error); |
595 | |
596 | /** |
597 | * sev_guest_activate - perform SEV ACTIVATE command |
598 | * |
599 | * @activate: sev_data_activate structure to be processed |
600 | * @sev_ret: sev command return code |
601 | * |
602 | * Returns: |
603 | * 0 if the sev successfully processed the command |
604 | * -%ENODEV if the sev device is not available |
605 | * -%ENOTSUPP if the sev does not support SEV |
606 | * -%ETIMEDOUT if the sev command timed out |
607 | * -%EIO if the sev returned a non-zero return code |
608 | */ |
609 | int sev_guest_activate(struct sev_data_activate *data, int *error); |
610 | |
611 | /** |
612 | * sev_guest_df_flush - perform SEV DF_FLUSH command |
613 | * |
614 | * @sev_ret: sev command return code |
615 | * |
616 | * Returns: |
617 | * 0 if the sev successfully processed the command |
618 | * -%ENODEV if the sev device is not available |
619 | * -%ENOTSUPP if the sev does not support SEV |
620 | * -%ETIMEDOUT if the sev command timed out |
621 | * -%EIO if the sev returned a non-zero return code |
622 | */ |
623 | int sev_guest_df_flush(int *error); |
624 | |
625 | /** |
626 | * sev_guest_decommission - perform SEV DECOMMISSION command |
627 | * |
628 | * @decommission: sev_data_decommission structure to be processed |
629 | * @sev_ret: sev command return code |
630 | * |
631 | * Returns: |
632 | * 0 if the sev successfully processed the command |
633 | * -%ENODEV if the sev device is not available |
634 | * -%ENOTSUPP if the sev does not support SEV |
635 | * -%ETIMEDOUT if the sev command timed out |
636 | * -%EIO if the sev returned a non-zero return code |
637 | */ |
638 | int sev_guest_decommission(struct sev_data_decommission *data, int *error); |
639 | |
640 | void *psp_copy_user_blob(u64 uaddr, u32 len); |
641 | |
642 | #else /* !CONFIG_CRYPTO_DEV_SP_PSP */ |
643 | |
644 | static inline int |
645 | sev_platform_status(struct sev_user_data_status *status, int *error) { return -ENODEV; } |
646 | |
647 | static inline int sev_platform_init(int *error) { return -ENODEV; } |
648 | |
649 | static inline int |
650 | sev_guest_deactivate(struct sev_data_deactivate *data, int *error) { return -ENODEV; } |
651 | |
652 | static inline int |
653 | sev_guest_decommission(struct sev_data_decommission *data, int *error) { return -ENODEV; } |
654 | |
655 | static inline int |
656 | sev_guest_activate(struct sev_data_activate *data, int *error) { return -ENODEV; } |
657 | |
658 | static inline int sev_guest_df_flush(int *error) { return -ENODEV; } |
659 | |
660 | static inline int |
661 | sev_issue_cmd_external_user(struct file *filep, unsigned int id, void *data, int *error) { return -ENODEV; } |
662 | |
663 | static inline void *psp_copy_user_blob(u64 __user uaddr, u32 len) { return ERR_PTR(-EINVAL); } |
664 | |
665 | #endif /* CONFIG_CRYPTO_DEV_SP_PSP */ |
666 | |
667 | #endif /* __PSP_SEV_H__ */ |
668 | |