sys/arch/x86/include/via_padlock.h

   1 /*      $NetBSD: via_padlock.h,v 1.4 2009/04/01 03:56:54 tls 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/rnd.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         uint32_t        op_cw[4];       /* 128 bit aligned */
  57         uint8_t op_iv[16];      /* 128 bit aligned */
  58         void            *op_buf;
  59
  60         int                     sc_rnd_hz;
  61         struct callout          sc_rnd_co;
  62         rndsource_element_t     sc_rnd_source;
  63
  64         /* normal softc stuff */
  65         int32_t         sc_cid;
  66         int             sc_nsessions;
  67         struct via_padlock_session *sc_sessions;
  68 };
  69
  70 #define VIAC3_SESSION(sid)      ((sid) & 0x0fffffff)
  71 #define VIAC3_SID(crd,ses)      (((crd) << 28) | ((ses) & 0x0fffffff))
  72
  73 #define VIAC3_RNG_BUFSIZ        16
  74
  75 void    via_padlock_attach(void);
  76
  77 #endif /* _KERNEL */
  78
  79 #if defined(_KERNEL) || defined(_KMEMUSER)
  80 struct cpu_info;
  81
  82 struct via_padlock {
  83         struct cpu_info         *vp_ci;
  84         int                     vp_freq;
  85 };
  86
  87 #endif /* _KERNEL || _KMEMUSER */
  88 #endif /* _X86_VIA_PADLOCK_H_ */