sys/arch/x86/include/via_padlock.h

   1 /*      $NetBSD: via_padlock.h,v 1.8 2015/04/13 16:03:51 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 #include <crypto/rijndael/rijndael.h>
  29
  30 /* VIA C3 xcrypt-* instruction context control options */
  31 #define C3_CRYPT_CWLO_ROUND_M           0x0000000f
  32 #define C3_CRYPT_CWLO_ALG_M             0x00000070
  33 #define C3_CRYPT_CWLO_ALG_AES           0x00000000
  34 #define C3_CRYPT_CWLO_KEYGEN_M          0x00000080
  35 #define C3_CRYPT_CWLO_KEYGEN_HW         0x00000000
  36 #define C3_CRYPT_CWLO_KEYGEN_SW         0x00000080
  37 #define C3_CRYPT_CWLO_NORMAL            0x00000000
  38 #define C3_CRYPT_CWLO_INTERMEDIATE      0x00000100
  39 #define C3_CRYPT_CWLO_ENCRYPT           0x00000000
  40 #define C3_CRYPT_CWLO_DECRYPT           0x00000200
  41 #define C3_CRYPT_CWLO_KEY128            0x0000000a      /* 128bit, 10 rds */
  42 #define C3_CRYPT_CWLO_KEY192            0x0000040c      /* 192bit, 12 rds */
  43 #define C3_CRYPT_CWLO_KEY256            0x0000080e      /* 256bit, 15 rds */
  44
  45 struct via_padlock_session {
  46         uint32_t        ses_ekey[4 * (RIJNDAEL_MAXNR + 1) + 4]; /* 128 bit aligned */
  47         uint32_t        ses_dkey[4 * (RIJNDAEL_MAXNR + 1) + 4]; /* 128 bit aligned */
  48         uint8_t ses_iv[16];                             /* 128 bit aligned */
  49         uint32_t        ses_cw0;
  50         struct swcr_data        *swd;
  51         int     ses_klen;
  52         int     ses_used;
  53 };
  54
  55 struct 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         int                     sc_rnd_hz;
  63         struct callout          sc_rnd_co;
  64         krndsource_t    sc_rnd_source;
  65         bool                    sc_rnd_attached;
  66
  67         /* normal softc stuff */
  68         int32_t         sc_cid;
  69         bool            sc_cid_attached;
  70         int             sc_nsessions;
  71         struct via_padlock_session *sc_sessions;
  72 };
  73
  74 #define VIAC3_SESSION(sid)      ((sid) & 0x0fffffff)
  75 #define VIAC3_SID(crd,ses)      (((crd) << 28) | ((ses) & 0x0fffffff))
  76
  77 #define VIAC3_RNG_BUFSIZ        16
  78
  79 #endif /* _KERNEL */
  80
  81 #if defined(_KERNEL) || defined(_KMEMUSER)
  82 struct cpu_info;
  83
  84 struct via_padlock {
  85         struct cpu_info         *vp_ci;
  86         int                     vp_freq;
  87 };
  88
  89 #endif /* _KERNEL || _KMEMUSER */
  90 #endif /* _X86_VIA_PADLOCK_H_ */