| 1 | #! /usr/bin/env perl
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| 2 | # Copyright 2011-2018 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | #
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| 4 | # Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | # this file except in compliance with the License. You can obtain a copy
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| 6 | # in the file LICENSE in the source distribution or at
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| 7 | # https://www.openssl.org/source/license.html
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| 8 |
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| 9 |
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| 10 | # ====================================================================
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| 11 | # Written by Andy Polyakov <[email protected]> for the OpenSSL
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| 12 | # project. The module is, however, dual licensed under OpenSSL and
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| 13 | # CRYPTOGAMS licenses depending on where you obtain it. For further
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| 14 | # details see http://www.openssl.org/~appro/cryptogams/.
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| 15 | # ====================================================================
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| 16 |
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| 17 | # September 2011
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| 18 | #
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| 19 | # Assembler helpers for Padlock engine. See even e_padlock-x86.pl for
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| 20 | # details.
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| 21 |
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| 22 | # $output is the last argument if it looks like a file (it has an extension)
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| 23 | # $flavour is the first argument if it doesn't look like a file
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| 24 | $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
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| 25 | $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
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| 26 |
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| 27 | $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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| 28 |
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| 29 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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| 30 | ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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| 31 | ( $xlate="${dir}../../crypto/perlasm/x86_64-xlate.pl" and -f $xlate) or
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| 32 | die "can't locate x86_64-xlate.pl";
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| 33 |
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| 34 | open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\""
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| 35 | or die "can't call $xlate: $!";
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| 36 | *STDOUT=*OUT;
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| 37 |
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| 38 | $code=".text\n";
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| 39 |
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| 40 | %PADLOCK_PREFETCH=(ecb=>128, cbc=>64, ctr32=>32); # prefetch errata
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| 41 | $PADLOCK_CHUNK=512; # Must be a power of 2 between 32 and 2^20
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| 42 |
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| 43 | $ctx="%rdx";
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| 44 | $out="%rdi";
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| 45 | $inp="%rsi";
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| 46 | $len="%rcx";
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| 47 | $chunk="%rbx";
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| 48 |
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| 49 | ($arg1,$arg2,$arg3,$arg4)=$win64?("%rcx","%rdx","%r8", "%r9") : # Win64 order
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| 50 | ("%rdi","%rsi","%rdx","%rcx"); # Unix order
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| 51 |
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| 52 | $code.=<<___;
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| 53 | .globl padlock_capability
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| 54 | .type padlock_capability,\@abi-omnipotent
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| 55 | .align 16
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| 56 | padlock_capability:
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| 57 | mov %rbx,%r8
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| 58 | xor %eax,%eax
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| 59 | cpuid
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| 60 | xor %eax,%eax
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| 61 | cmp \$`"0x".unpack("H*",'tneC')`,%ebx
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| 62 | jne .Lzhaoxin
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| 63 | cmp \$`"0x".unpack("H*",'Hrua')`,%edx
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| 64 | jne .Lnoluck
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| 65 | cmp \$`"0x".unpack("H*",'slua')`,%ecx
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| 66 | jne .Lnoluck
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| 67 | jmp .LzhaoxinEnd
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| 68 | .Lzhaoxin:
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| 69 | cmp \$`"0x".unpack("H*",'hS ')`,%ebx
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| 70 | jne .Lnoluck
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| 71 | cmp \$`"0x".unpack("H*",'hgna')`,%edx
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| 72 | jne .Lnoluck
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| 73 | cmp \$`"0x".unpack("H*",' ia')`,%ecx
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| 74 | jne .Lnoluck
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| 75 | .LzhaoxinEnd:
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| 76 | mov \$0xC0000000,%eax
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| 77 | cpuid
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| 78 | mov %eax,%edx
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| 79 | xor %eax,%eax
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| 80 | cmp \$0xC0000001,%edx
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| 81 | jb .Lnoluck
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| 82 | mov \$0xC0000001,%eax
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| 83 | cpuid
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| 84 | mov %edx,%eax
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| 85 | and \$0xffffffef,%eax
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| 86 | or \$0x10,%eax # set Nano bit#4
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| 87 | .Lnoluck:
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| 88 | mov %r8,%rbx
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| 89 | ret
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| 90 | .size padlock_capability,.-padlock_capability
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| 91 |
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| 92 | .globl padlock_key_bswap
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| 93 | .type padlock_key_bswap,\@abi-omnipotent,0
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| 94 | .align 16
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| 95 | padlock_key_bswap:
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| 96 | mov 240($arg1),%edx
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| 97 | .Lbswap_loop:
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| 98 | mov ($arg1),%eax
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| 99 | bswap %eax
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| 100 | mov %eax,($arg1)
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| 101 | lea 4($arg1),$arg1
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| 102 | sub \$1,%edx
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| 103 | jnz .Lbswap_loop
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| 104 | ret
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| 105 | .size padlock_key_bswap,.-padlock_key_bswap
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| 106 |
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| 107 | .globl padlock_verify_context
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| 108 | .type padlock_verify_context,\@abi-omnipotent
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| 109 | .align 16
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| 110 | padlock_verify_context:
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| 111 | mov $arg1,$ctx
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| 112 | pushf
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| 113 | lea .Lpadlock_saved_context(%rip),%rax
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| 114 | call _padlock_verify_ctx
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| 115 | lea 8(%rsp),%rsp
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| 116 | ret
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| 117 | .size padlock_verify_context,.-padlock_verify_context
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| 118 |
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| 119 | .type _padlock_verify_ctx,\@abi-omnipotent
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| 120 | .align 16
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| 121 | _padlock_verify_ctx:
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| 122 | mov 8(%rsp),%r8
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| 123 | bt \$30,%r8
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| 124 | jnc .Lverified
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| 125 | cmp (%rax),$ctx
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| 126 | je .Lverified
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| 127 | pushf
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| 128 | popf
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| 129 | .Lverified:
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| 130 | mov $ctx,(%rax)
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| 131 | ret
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| 132 | .size _padlock_verify_ctx,.-_padlock_verify_ctx
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| 133 |
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| 134 | .globl padlock_reload_key
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| 135 | .type padlock_reload_key,\@abi-omnipotent
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| 136 | .align 16
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| 137 | padlock_reload_key:
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| 138 | pushf
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| 139 | popf
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| 140 | ret
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| 141 | .size padlock_reload_key,.-padlock_reload_key
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| 142 |
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| 143 | .globl padlock_aes_block
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| 144 | .type padlock_aes_block,\@function,3
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| 145 | .align 16
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| 146 | padlock_aes_block:
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| 147 | mov %rbx,%r8
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| 148 | mov \$1,$len
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| 149 | lea 32($ctx),%rbx # key
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| 150 | lea 16($ctx),$ctx # control word
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| 151 | .byte 0xf3,0x0f,0xa7,0xc8 # rep xcryptecb
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| 152 | mov %r8,%rbx
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| 153 | ret
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| 154 | .size padlock_aes_block,.-padlock_aes_block
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| 155 |
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| 156 | .globl padlock_xstore
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| 157 | .type padlock_xstore,\@function,2
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| 158 | .align 16
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| 159 | padlock_xstore:
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| 160 | mov %esi,%edx
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| 161 | .byte 0x0f,0xa7,0xc0 # xstore
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| 162 | ret
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| 163 | .size padlock_xstore,.-padlock_xstore
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| 164 |
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| 165 | .globl padlock_sha1_oneshot
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| 166 | .type padlock_sha1_oneshot,\@function,3
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| 167 | .align 16
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| 168 | padlock_sha1_oneshot:
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| 169 | mov %rdx,%rcx
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| 170 | mov %rdi,%rdx # put aside %rdi
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| 171 | movups (%rdi),%xmm0 # copy-in context
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| 172 | sub \$128+8,%rsp
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| 173 | mov 16(%rdi),%eax
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| 174 | movaps %xmm0,(%rsp)
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| 175 | mov %rsp,%rdi
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| 176 | mov %eax,16(%rsp)
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| 177 | xor %rax,%rax
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| 178 | .byte 0xf3,0x0f,0xa6,0xc8 # rep xsha1
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| 179 | movaps (%rsp),%xmm0
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| 180 | mov 16(%rsp),%eax
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| 181 | add \$128+8,%rsp
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| 182 | movups %xmm0,(%rdx) # copy-out context
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| 183 | mov %eax,16(%rdx)
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| 184 | ret
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| 185 | .size padlock_sha1_oneshot,.-padlock_sha1_oneshot
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| 186 |
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| 187 | .globl padlock_sha1_blocks
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| 188 | .type padlock_sha1_blocks,\@function,3
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| 189 | .align 16
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| 190 | padlock_sha1_blocks:
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| 191 | mov %rdx,%rcx
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| 192 | mov %rdi,%rdx # put aside %rdi
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| 193 | movups (%rdi),%xmm0 # copy-in context
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| 194 | sub \$128+8,%rsp
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| 195 | mov 16(%rdi),%eax
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| 196 | movaps %xmm0,(%rsp)
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| 197 | mov %rsp,%rdi
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| 198 | mov %eax,16(%rsp)
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| 199 | mov \$-1,%rax
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| 200 | .byte 0xf3,0x0f,0xa6,0xc8 # rep xsha1
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| 201 | movaps (%rsp),%xmm0
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| 202 | mov 16(%rsp),%eax
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| 203 | add \$128+8,%rsp
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| 204 | movups %xmm0,(%rdx) # copy-out context
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| 205 | mov %eax,16(%rdx)
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| 206 | ret
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| 207 | .size padlock_sha1_blocks,.-padlock_sha1_blocks
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| 208 |
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| 209 | .globl padlock_sha256_oneshot
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| 210 | .type padlock_sha256_oneshot,\@function,3
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| 211 | .align 16
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| 212 | padlock_sha256_oneshot:
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| 213 | mov %rdx,%rcx
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| 214 | mov %rdi,%rdx # put aside %rdi
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| 215 | movups (%rdi),%xmm0 # copy-in context
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| 216 | sub \$128+8,%rsp
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| 217 | movups 16(%rdi),%xmm1
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| 218 | movaps %xmm0,(%rsp)
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| 219 | mov %rsp,%rdi
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| 220 | movaps %xmm1,16(%rsp)
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| 221 | xor %rax,%rax
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| 222 | .byte 0xf3,0x0f,0xa6,0xd0 # rep xsha256
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| 223 | movaps (%rsp),%xmm0
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| 224 | movaps 16(%rsp),%xmm1
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| 225 | add \$128+8,%rsp
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| 226 | movups %xmm0,(%rdx) # copy-out context
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| 227 | movups %xmm1,16(%rdx)
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| 228 | ret
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| 229 | .size padlock_sha256_oneshot,.-padlock_sha256_oneshot
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| 230 |
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| 231 | .globl padlock_sha256_blocks
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| 232 | .type padlock_sha256_blocks,\@function,3
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| 233 | .align 16
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| 234 | padlock_sha256_blocks:
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| 235 | mov %rdx,%rcx
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| 236 | mov %rdi,%rdx # put aside %rdi
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| 237 | movups (%rdi),%xmm0 # copy-in context
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| 238 | sub \$128+8,%rsp
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| 239 | movups 16(%rdi),%xmm1
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| 240 | movaps %xmm0,(%rsp)
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| 241 | mov %rsp,%rdi
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| 242 | movaps %xmm1,16(%rsp)
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| 243 | mov \$-1,%rax
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| 244 | .byte 0xf3,0x0f,0xa6,0xd0 # rep xsha256
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| 245 | movaps (%rsp),%xmm0
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| 246 | movaps 16(%rsp),%xmm1
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| 247 | add \$128+8,%rsp
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| 248 | movups %xmm0,(%rdx) # copy-out context
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| 249 | movups %xmm1,16(%rdx)
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| 250 | ret
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| 251 | .size padlock_sha256_blocks,.-padlock_sha256_blocks
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| 252 |
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| 253 | .globl padlock_sha512_blocks
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| 254 | .type padlock_sha512_blocks,\@function,3
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| 255 | .align 16
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| 256 | padlock_sha512_blocks:
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| 257 | mov %rdx,%rcx
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| 258 | mov %rdi,%rdx # put aside %rdi
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| 259 | movups (%rdi),%xmm0 # copy-in context
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| 260 | sub \$128+8,%rsp
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| 261 | movups 16(%rdi),%xmm1
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| 262 | movups 32(%rdi),%xmm2
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| 263 | movups 48(%rdi),%xmm3
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| 264 | movaps %xmm0,(%rsp)
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| 265 | mov %rsp,%rdi
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| 266 | movaps %xmm1,16(%rsp)
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| 267 | movaps %xmm2,32(%rsp)
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| 268 | movaps %xmm3,48(%rsp)
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| 269 | .byte 0xf3,0x0f,0xa6,0xe0 # rep xha512
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| 270 | movaps (%rsp),%xmm0
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| 271 | movaps 16(%rsp),%xmm1
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| 272 | movaps 32(%rsp),%xmm2
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| 273 | movaps 48(%rsp),%xmm3
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| 274 | add \$128+8,%rsp
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| 275 | movups %xmm0,(%rdx) # copy-out context
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| 276 | movups %xmm1,16(%rdx)
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| 277 | movups %xmm2,32(%rdx)
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| 278 | movups %xmm3,48(%rdx)
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| 279 | ret
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| 280 | .size padlock_sha512_blocks,.-padlock_sha512_blocks
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| 281 | ___
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| 282 |
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| 283 | sub generate_mode {
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| 284 | my ($mode,$opcode) = @_;
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| 285 | # int padlock_$mode_encrypt(void *out, const void *inp,
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| 286 | # struct padlock_cipher_data *ctx, size_t len);
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| 287 | $code.=<<___;
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| 288 | .globl padlock_${mode}_encrypt
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| 289 | .type padlock_${mode}_encrypt,\@function,4
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| 290 | .align 16
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| 291 | padlock_${mode}_encrypt:
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| 292 | push %rbp
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| 293 | push %rbx
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| 294 |
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| 295 | xor %eax,%eax
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| 296 | test \$15,$ctx
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| 297 | jnz .L${mode}_abort
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| 298 | test \$15,$len
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| 299 | jnz .L${mode}_abort
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| 300 | lea .Lpadlock_saved_context(%rip),%rax
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| 301 | pushf
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| 302 | cld
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| 303 | call _padlock_verify_ctx
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| 304 | lea 16($ctx),$ctx # control word
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| 305 | xor %eax,%eax
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| 306 | xor %ebx,%ebx
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| 307 | testl \$`1<<5`,($ctx) # align bit in control word
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| 308 | jnz .L${mode}_aligned
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| 309 | test \$0x0f,$out
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| 310 | setz %al # !out_misaligned
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| 311 | test \$0x0f,$inp
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| 312 | setz %bl # !inp_misaligned
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| 313 | test %ebx,%eax
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| 314 | jnz .L${mode}_aligned
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| 315 | neg %rax
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| 316 | mov \$$PADLOCK_CHUNK,$chunk
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| 317 | not %rax # out_misaligned?-1:0
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| 318 | lea (%rsp),%rbp
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| 319 | cmp $chunk,$len
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| 320 | cmovc $len,$chunk # chunk=len>PADLOCK_CHUNK?PADLOCK_CHUNK:len
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| 321 | and $chunk,%rax # out_misaligned?chunk:0
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| 322 | mov $len,$chunk
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| 323 | neg %rax
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| 324 | and \$$PADLOCK_CHUNK-1,$chunk # chunk%=PADLOCK_CHUNK
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| 325 | lea (%rax,%rbp),%rsp
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| 326 | mov \$$PADLOCK_CHUNK,%rax
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| 327 | cmovz %rax,$chunk # chunk=chunk?:PADLOCK_CHUNK
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| 328 | ___
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| 329 | $code.=<<___ if ($mode eq "ctr32");
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| 330 | .L${mode}_reenter:
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| 331 | mov -4($ctx),%eax # pull 32-bit counter
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| 332 | bswap %eax
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| 333 | neg %eax
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| 334 | and \$`$PADLOCK_CHUNK/16-1`,%eax
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| 335 | mov \$$PADLOCK_CHUNK,$chunk
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| 336 | shl \$4,%eax
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| 337 | cmovz $chunk,%rax
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| 338 | cmp %rax,$len
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| 339 | cmova %rax,$chunk # don't let counter cross PADLOCK_CHUNK
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| 340 | cmovbe $len,$chunk
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| 341 | ___
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| 342 | $code.=<<___ if ($PADLOCK_PREFETCH{$mode});
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| 343 | cmp $chunk,$len
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| 344 | ja .L${mode}_loop
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| 345 | mov $inp,%rax # check if prefetch crosses page
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| 346 | cmp %rsp,%rbp
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| 347 | cmove $out,%rax
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| 348 | add $len,%rax
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| 349 | neg %rax
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| 350 | and \$0xfff,%rax # distance to page boundary
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| 351 | cmp \$$PADLOCK_PREFETCH{$mode},%rax
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| 352 | mov \$-$PADLOCK_PREFETCH{$mode},%rax
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| 353 | cmovae $chunk,%rax # mask=distance<prefetch?-prefetch:-1
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| 354 | and %rax,$chunk
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| 355 | jz .L${mode}_unaligned_tail
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| 356 | ___
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| 357 | $code.=<<___;
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| 358 | jmp .L${mode}_loop
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| 359 | .align 16
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| 360 | .L${mode}_loop:
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| 361 | cmp $len,$chunk # ctr32 artefact
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| 362 | cmova $len,$chunk # ctr32 artefact
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| 363 | mov $out,%r8 # save parameters
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| 364 | mov $inp,%r9
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| 365 | mov $len,%r10
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| 366 | mov $chunk,$len
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| 367 | mov $chunk,%r11
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| 368 | test \$0x0f,$out # out_misaligned
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| 369 | cmovnz %rsp,$out
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| 370 | test \$0x0f,$inp # inp_misaligned
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| 371 | jz .L${mode}_inp_aligned
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| 372 | shr \$3,$len
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| 373 | .byte 0xf3,0x48,0xa5 # rep movsq
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| 374 | sub $chunk,$out
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| 375 | mov $chunk,$len
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| 376 | mov $out,$inp
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| 377 | .L${mode}_inp_aligned:
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| 378 | lea -16($ctx),%rax # ivp
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| 379 | lea 16($ctx),%rbx # key
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| 380 | shr \$4,$len
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| 381 | .byte 0xf3,0x0f,0xa7,$opcode # rep xcrypt*
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| 382 | ___
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| 383 | $code.=<<___ if ($mode !~ /ecb|ctr/);
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| 384 | movdqa (%rax),%xmm0
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| 385 | movdqa %xmm0,-16($ctx) # copy [or refresh] iv
|
|---|
| 386 | ___
|
|---|
| 387 | $code.=<<___ if ($mode eq "ctr32");
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|---|
| 388 | mov -4($ctx),%eax # pull 32-bit counter
|
|---|
| 389 | test \$0xffff0000,%eax
|
|---|
| 390 | jnz .L${mode}_no_carry
|
|---|
| 391 | bswap %eax
|
|---|
| 392 | add \$0x10000,%eax
|
|---|
| 393 | bswap %eax
|
|---|
| 394 | mov %eax,-4($ctx)
|
|---|
| 395 | .L${mode}_no_carry:
|
|---|
| 396 | ___
|
|---|
| 397 | $code.=<<___;
|
|---|
| 398 | mov %r8,$out # restore parameters
|
|---|
| 399 | mov %r11,$chunk
|
|---|
| 400 | test \$0x0f,$out
|
|---|
| 401 | jz .L${mode}_out_aligned
|
|---|
| 402 | mov $chunk,$len
|
|---|
| 403 | lea (%rsp),$inp
|
|---|
| 404 | shr \$3,$len
|
|---|
| 405 | .byte 0xf3,0x48,0xa5 # rep movsq
|
|---|
| 406 | sub $chunk,$out
|
|---|
| 407 | .L${mode}_out_aligned:
|
|---|
| 408 | mov %r9,$inp
|
|---|
| 409 | mov %r10,$len
|
|---|
| 410 | add $chunk,$out
|
|---|
| 411 | add $chunk,$inp
|
|---|
| 412 | sub $chunk,$len
|
|---|
| 413 | mov \$$PADLOCK_CHUNK,$chunk
|
|---|
| 414 | ___
|
|---|
| 415 | if (!$PADLOCK_PREFETCH{$mode}) {
|
|---|
| 416 | $code.=<<___;
|
|---|
| 417 | jnz .L${mode}_loop
|
|---|
| 418 | ___
|
|---|
| 419 | } else {
|
|---|
| 420 | $code.=<<___;
|
|---|
| 421 | jz .L${mode}_break
|
|---|
| 422 | cmp $chunk,$len
|
|---|
| 423 | jae .L${mode}_loop
|
|---|
| 424 | ___
|
|---|
| 425 | $code.=<<___ if ($mode eq "ctr32");
|
|---|
| 426 | mov $len,$chunk
|
|---|
| 427 | mov $inp,%rax # check if prefetch crosses page
|
|---|
| 428 | cmp %rsp,%rbp
|
|---|
| 429 | cmove $out,%rax
|
|---|
| 430 | add $len,%rax
|
|---|
| 431 | neg %rax
|
|---|
| 432 | and \$0xfff,%rax # distance to page boundary
|
|---|
| 433 | cmp \$$PADLOCK_PREFETCH{$mode},%rax
|
|---|
| 434 | mov \$-$PADLOCK_PREFETCH{$mode},%rax
|
|---|
| 435 | cmovae $chunk,%rax
|
|---|
| 436 | and %rax,$chunk
|
|---|
| 437 | jnz .L${mode}_loop
|
|---|
| 438 | ___
|
|---|
| 439 | $code.=<<___;
|
|---|
| 440 | .L${mode}_unaligned_tail:
|
|---|
| 441 | xor %eax,%eax
|
|---|
| 442 | cmp %rsp,%rbp
|
|---|
| 443 | cmove $len,%rax
|
|---|
| 444 | mov $out,%r8 # save parameters
|
|---|
| 445 | mov $len,$chunk
|
|---|
| 446 | sub %rax,%rsp # alloca
|
|---|
| 447 | shr \$3,$len
|
|---|
| 448 | lea (%rsp),$out
|
|---|
| 449 | .byte 0xf3,0x48,0xa5 # rep movsq
|
|---|
| 450 | mov %rsp,$inp
|
|---|
| 451 | mov %r8, $out # restore parameters
|
|---|
| 452 | mov $chunk,$len
|
|---|
| 453 | jmp .L${mode}_loop
|
|---|
| 454 | .align 16
|
|---|
| 455 | .L${mode}_break:
|
|---|
| 456 | ___
|
|---|
| 457 | }
|
|---|
| 458 | $code.=<<___;
|
|---|
| 459 | cmp %rbp,%rsp
|
|---|
| 460 | je .L${mode}_done
|
|---|
| 461 |
|
|---|
| 462 | pxor %xmm0,%xmm0
|
|---|
| 463 | lea (%rsp),%rax
|
|---|
| 464 | .L${mode}_bzero:
|
|---|
| 465 | movaps %xmm0,(%rax)
|
|---|
| 466 | lea 16(%rax),%rax
|
|---|
| 467 | cmp %rax,%rbp
|
|---|
| 468 | ja .L${mode}_bzero
|
|---|
| 469 |
|
|---|
| 470 | .L${mode}_done:
|
|---|
| 471 | lea (%rbp),%rsp
|
|---|
| 472 | jmp .L${mode}_exit
|
|---|
| 473 |
|
|---|
| 474 | .align 16
|
|---|
| 475 | .L${mode}_aligned:
|
|---|
| 476 | ___
|
|---|
| 477 | $code.=<<___ if ($mode eq "ctr32");
|
|---|
| 478 | mov -4($ctx),%eax # pull 32-bit counter
|
|---|
| 479 | bswap %eax
|
|---|
| 480 | neg %eax
|
|---|
| 481 | and \$0xffff,%eax
|
|---|
| 482 | mov \$`16*0x10000`,$chunk
|
|---|
| 483 | shl \$4,%eax
|
|---|
| 484 | cmovz $chunk,%rax
|
|---|
| 485 | cmp %rax,$len
|
|---|
| 486 | cmova %rax,$chunk # don't let counter cross 2^16
|
|---|
| 487 | cmovbe $len,$chunk
|
|---|
| 488 | jbe .L${mode}_aligned_skip
|
|---|
| 489 |
|
|---|
| 490 | .L${mode}_aligned_loop:
|
|---|
| 491 | mov $len,%r10 # save parameters
|
|---|
| 492 | mov $chunk,$len
|
|---|
| 493 | mov $chunk,%r11
|
|---|
| 494 |
|
|---|
| 495 | lea -16($ctx),%rax # ivp
|
|---|
| 496 | lea 16($ctx),%rbx # key
|
|---|
| 497 | shr \$4,$len # len/=AES_BLOCK_SIZE
|
|---|
| 498 | .byte 0xf3,0x0f,0xa7,$opcode # rep xcrypt*
|
|---|
| 499 |
|
|---|
| 500 | mov -4($ctx),%eax # pull 32-bit counter
|
|---|
| 501 | bswap %eax
|
|---|
| 502 | add \$0x10000,%eax
|
|---|
| 503 | bswap %eax
|
|---|
| 504 | mov %eax,-4($ctx)
|
|---|
| 505 |
|
|---|
| 506 | mov %r10,$len # restore parameters
|
|---|
| 507 | sub %r11,$len
|
|---|
| 508 | mov \$`16*0x10000`,$chunk
|
|---|
| 509 | jz .L${mode}_exit
|
|---|
| 510 | cmp $chunk,$len
|
|---|
| 511 | jae .L${mode}_aligned_loop
|
|---|
| 512 |
|
|---|
| 513 | .L${mode}_aligned_skip:
|
|---|
| 514 | ___
|
|---|
| 515 | $code.=<<___ if ($PADLOCK_PREFETCH{$mode});
|
|---|
| 516 | lea ($inp,$len),%rbp
|
|---|
| 517 | neg %rbp
|
|---|
| 518 | and \$0xfff,%rbp # distance to page boundary
|
|---|
| 519 | xor %eax,%eax
|
|---|
| 520 | cmp \$$PADLOCK_PREFETCH{$mode},%rbp
|
|---|
| 521 | mov \$$PADLOCK_PREFETCH{$mode}-1,%rbp
|
|---|
| 522 | cmovae %rax,%rbp
|
|---|
| 523 | and $len,%rbp # remainder
|
|---|
| 524 | sub %rbp,$len
|
|---|
| 525 | jz .L${mode}_aligned_tail
|
|---|
| 526 | ___
|
|---|
| 527 | $code.=<<___;
|
|---|
| 528 | lea -16($ctx),%rax # ivp
|
|---|
| 529 | lea 16($ctx),%rbx # key
|
|---|
| 530 | shr \$4,$len # len/=AES_BLOCK_SIZE
|
|---|
| 531 | .byte 0xf3,0x0f,0xa7,$opcode # rep xcrypt*
|
|---|
| 532 | ___
|
|---|
| 533 | $code.=<<___ if ($mode !~ /ecb|ctr/);
|
|---|
| 534 | movdqa (%rax),%xmm0
|
|---|
| 535 | movdqa %xmm0,-16($ctx) # copy [or refresh] iv
|
|---|
| 536 | ___
|
|---|
| 537 | $code.=<<___ if ($PADLOCK_PREFETCH{$mode});
|
|---|
| 538 | test %rbp,%rbp # check remainder
|
|---|
| 539 | jz .L${mode}_exit
|
|---|
| 540 |
|
|---|
| 541 | .L${mode}_aligned_tail:
|
|---|
| 542 | mov $out,%r8
|
|---|
| 543 | mov %rbp,$chunk
|
|---|
| 544 | mov %rbp,$len
|
|---|
| 545 | lea (%rsp),%rbp
|
|---|
| 546 | sub $len,%rsp
|
|---|
| 547 | shr \$3,$len
|
|---|
| 548 | lea (%rsp),$out
|
|---|
| 549 | .byte 0xf3,0x48,0xa5 # rep movsq
|
|---|
| 550 | lea (%r8),$out
|
|---|
| 551 | lea (%rsp),$inp
|
|---|
| 552 | mov $chunk,$len
|
|---|
| 553 | jmp .L${mode}_loop
|
|---|
| 554 | ___
|
|---|
| 555 | $code.=<<___;
|
|---|
| 556 | .L${mode}_exit:
|
|---|
| 557 | mov \$1,%eax
|
|---|
| 558 | lea 8(%rsp),%rsp
|
|---|
| 559 | .L${mode}_abort:
|
|---|
| 560 | pop %rbx
|
|---|
| 561 | pop %rbp
|
|---|
| 562 | ret
|
|---|
| 563 | .size padlock_${mode}_encrypt,.-padlock_${mode}_encrypt
|
|---|
| 564 | ___
|
|---|
| 565 | }
|
|---|
| 566 |
|
|---|
| 567 | &generate_mode("ecb",0xc8);
|
|---|
| 568 | &generate_mode("cbc",0xd0);
|
|---|
| 569 | &generate_mode("cfb",0xe0);
|
|---|
| 570 | &generate_mode("ofb",0xe8);
|
|---|
| 571 | &generate_mode("ctr32",0xd8); # all 64-bit CPUs have working CTR...
|
|---|
| 572 |
|
|---|
| 573 | $code.=<<___;
|
|---|
| 574 | .asciz "VIA Padlock x86_64 module, CRYPTOGAMS by <appro\@openssl.org>"
|
|---|
| 575 | .align 16
|
|---|
| 576 | .data
|
|---|
| 577 | .align 8
|
|---|
| 578 | .Lpadlock_saved_context:
|
|---|
| 579 | .quad 0
|
|---|
| 580 | ___
|
|---|
| 581 | $code =~ s/\`([^\`]*)\`/eval($1)/gem;
|
|---|
| 582 |
|
|---|
| 583 | print $code;
|
|---|
| 584 |
|
|---|
| 585 | close STDOUT;
|
|---|
