1/* $NetBSD: via_padlock.h,v 1.10 2020/06/29 23:38:02 riastradh Exp $ */
2
3/*-
4 * Copyright (c) 2003 Jason Wright
5 * Copyright (c) 2003, 2004 Theo de Raadt
6 * All rights reserved.
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 */
20
21#ifndef _X86_VIA_PADLOCK_H_
22#define _X86_VIA_PADLOCK_H_
23
24#if defined(_KERNEL)
25
26#include <sys/rndsource.h>
27#include <sys/callout.h>
28
29#include <crypto/aes/aes.h>
30
31/* VIA C3 xcrypt-* instruction context control options */
32#define C3_CRYPT_CWLO_ROUND_M 0x0000000f
33#define C3_CRYPT_CWLO_ALG_M 0x00000070
34#define C3_CRYPT_CWLO_ALG_AES 0x00000000
35#define C3_CRYPT_CWLO_KEYGEN_M 0x00000080
36#define C3_CRYPT_CWLO_KEYGEN_HW 0x00000000
37#define C3_CRYPT_CWLO_KEYGEN_SW 0x00000080
38#define C3_CRYPT_CWLO_NORMAL 0x00000000
39#define C3_CRYPT_CWLO_INTERMEDIATE 0x00000100
40#define C3_CRYPT_CWLO_ENCRYPT 0x00000000
41#define C3_CRYPT_CWLO_DECRYPT 0x00000200
42#define C3_CRYPT_CWLO_KEY128 0x0000000a /* 128bit, 10 rds */
43#define C3_CRYPT_CWLO_KEY192 0x0000040c /* 192bit, 12 rds */
44#define C3_CRYPT_CWLO_KEY256 0x0000080e /* 256bit, 15 rds */
45
46struct via_padlock_session {
47 uint32_t ses_ekey[4*(AES_256_NROUNDS + 1)];
48 uint32_t ses_dkey[4*(AES_256_NROUNDS + 1)];
49 uint32_t ses_cw0;
50 struct swcr_data *swd;
51 int ses_klen;
52 int ses_used;
53};
54
55struct via_padlock_softc {
56 device_t sc_dev;
57
58 uint32_t op_cw[4]; /* 128 bit aligned */
59 uint8_t op_iv[16]; /* 128 bit aligned */
60 void *op_buf;
61
62 /* normal softc stuff */
63 int32_t sc_cid;
64 bool sc_cid_attached;
65 int sc_nsessions;
66 struct via_padlock_session *sc_sessions;
67};
68
69#define VIAC3_SESSION(sid) ((sid) & 0x0fffffff)
70#define VIAC3_SID(crd,ses) (((crd) << 28) | ((ses) & 0x0fffffff))
71
72#endif /* _KERNEL */
73
74#if defined(_KERNEL) || defined(_KMEMUSER)
75struct cpu_info;
76
77struct via_padlock {
78 struct cpu_info *vp_ci;
79 int vp_freq;
80};
81
82#endif /* _KERNEL || _KMEMUSER */
83#endif /* _X86_VIA_PADLOCK_H_ */