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文件: /usr/local/src/openssl-1.1.1w/engines/asm/e_padlock-x86_64.pl
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#! /usr/bin/env perl # Copyright 2011-2023 The OpenSSL Project Authors. All Rights Reserved. # # Licensed under the OpenSSL license (the "License"). You may not use # this file except in compliance with the License. You can obtain a copy # in the file LICENSE in the source distribution or at # https://www.openssl.org/source/license.html # ==================================================================== # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL # project. The module is, however, dual licensed under OpenSSL and # CRYPTOGAMS licenses depending on where you obtain it. For further # details see http://www.openssl.org/~appro/cryptogams/. # ==================================================================== # September 2011 # # Assembler helpers for Padlock engine. See even e_padlock-x86.pl for # details. $flavour = shift; $output = shift; if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or ( $xlate="${dir}../../crypto/perlasm/x86_64-xlate.pl" and -f $xlate) or die "can't locate x86_64-xlate.pl"; open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\""; *STDOUT=*OUT; $code=".text\n"; %PADLOCK_PREFETCH=(ecb=>128, cbc=>64, ctr32=>32); # prefetch errata $PADLOCK_CHUNK=512; # Must be a power of 2 between 32 and 2^20 $ctx="%rdx"; $out="%rdi"; $inp="%rsi"; $len="%rcx"; $chunk="%rbx"; ($arg1,$arg2,$arg3,$arg4)=$win64?("%rcx","%rdx","%r8", "%r9") : # Win64 order ("%rdi","%rsi","%rdx","%rcx"); # Unix order $code.=<<___; .globl padlock_capability .type padlock_capability,\@abi-omnipotent .align 16 padlock_capability: mov %rbx,%r8 xor %eax,%eax cpuid xor %eax,%eax cmp \$`"0x".unpack("H*",'tneC')`,%ebx jne .Lzhaoxin cmp \$`"0x".unpack("H*",'Hrua')`,%edx jne .Lnoluck cmp \$`"0x".unpack("H*",'slua')`,%ecx jne .Lnoluck jmp .LzhaoxinEnd .Lzhaoxin: cmp \$`"0x".unpack("H*",'hS ')`,%ebx jne .Lnoluck cmp \$`"0x".unpack("H*",'hgna')`,%edx jne .Lnoluck cmp \$`"0x".unpack("H*",' ia')`,%ecx jne .Lnoluck .LzhaoxinEnd: mov \$0xC0000000,%eax cpuid mov %eax,%edx xor %eax,%eax cmp \$0xC0000001,%edx jb .Lnoluck mov \$0xC0000001,%eax cpuid mov %edx,%eax and \$0xffffffef,%eax or \$0x10,%eax # set Nano bit#4 .Lnoluck: mov %r8,%rbx ret .size padlock_capability,.-padlock_capability .globl padlock_key_bswap .type padlock_key_bswap,\@abi-omnipotent,0 .align 16 padlock_key_bswap: mov 240($arg1),%edx inc %edx shl \$2,%edx .Lbswap_loop: mov ($arg1),%eax bswap %eax mov %eax,($arg1) lea 4($arg1),$arg1 sub \$1,%edx jnz .Lbswap_loop ret .size padlock_key_bswap,.-padlock_key_bswap .globl padlock_verify_context .type padlock_verify_context,\@abi-omnipotent .align 16 padlock_verify_context: mov $arg1,$ctx pushf lea .Lpadlock_saved_context(%rip),%rax call _padlock_verify_ctx lea 8(%rsp),%rsp ret .size padlock_verify_context,.-padlock_verify_context .type _padlock_verify_ctx,\@abi-omnipotent .align 16 _padlock_verify_ctx: mov 8(%rsp),%r8 bt \$30,%r8 jnc .Lverified cmp (%rax),$ctx je .Lverified pushf popf .Lverified: mov $ctx,(%rax) ret .size _padlock_verify_ctx,.-_padlock_verify_ctx .globl padlock_reload_key .type padlock_reload_key,\@abi-omnipotent .align 16 padlock_reload_key: pushf popf ret .size padlock_reload_key,.-padlock_reload_key .globl padlock_aes_block .type padlock_aes_block,\@function,3 .align 16 padlock_aes_block: mov %rbx,%r8 mov \$1,$len lea 32($ctx),%rbx # key lea 16($ctx),$ctx # control word .byte 0xf3,0x0f,0xa7,0xc8 # rep xcryptecb mov %r8,%rbx ret .size padlock_aes_block,.-padlock_aes_block .globl padlock_xstore .type padlock_xstore,\@function,2 .align 16 padlock_xstore: mov %esi,%edx .byte 0x0f,0xa7,0xc0 # xstore ret .size padlock_xstore,.-padlock_xstore .globl padlock_sha1_oneshot .type padlock_sha1_oneshot,\@function,3 .align 16 padlock_sha1_oneshot: mov %rdx,%rcx mov %rdi,%rdx # put aside %rdi movups (%rdi),%xmm0 # copy-in context sub \$128+8,%rsp mov 16(%rdi),%eax movaps %xmm0,(%rsp) mov %rsp,%rdi mov %eax,16(%rsp) xor %rax,%rax .byte 0xf3,0x0f,0xa6,0xc8 # rep xsha1 movaps (%rsp),%xmm0 mov 16(%rsp),%eax add \$128+8,%rsp movups %xmm0,(%rdx) # copy-out context mov %eax,16(%rdx) ret .size padlock_sha1_oneshot,.-padlock_sha1_oneshot .globl padlock_sha1_blocks .type padlock_sha1_blocks,\@function,3 .align 16 padlock_sha1_blocks: mov %rdx,%rcx mov %rdi,%rdx # put aside %rdi movups (%rdi),%xmm0 # copy-in context sub \$128+8,%rsp mov 16(%rdi),%eax movaps %xmm0,(%rsp) mov %rsp,%rdi mov %eax,16(%rsp) mov \$-1,%rax .byte 0xf3,0x0f,0xa6,0xc8 # rep xsha1 movaps (%rsp),%xmm0 mov 16(%rsp),%eax add \$128+8,%rsp movups %xmm0,(%rdx) # copy-out context mov %eax,16(%rdx) ret .size padlock_sha1_blocks,.-padlock_sha1_blocks .globl padlock_sha256_oneshot .type padlock_sha256_oneshot,\@function,3 .align 16 padlock_sha256_oneshot: mov %rdx,%rcx mov %rdi,%rdx # put aside %rdi movups (%rdi),%xmm0 # copy-in context sub \$128+8,%rsp movups 16(%rdi),%xmm1 movaps %xmm0,(%rsp) mov %rsp,%rdi movaps %xmm1,16(%rsp) xor %rax,%rax .byte 0xf3,0x0f,0xa6,0xd0 # rep xsha256 movaps (%rsp),%xmm0 movaps 16(%rsp),%xmm1 add \$128+8,%rsp movups %xmm0,(%rdx) # copy-out context movups %xmm1,16(%rdx) ret .size padlock_sha256_oneshot,.-padlock_sha256_oneshot .globl padlock_sha256_blocks .type padlock_sha256_blocks,\@function,3 .align 16 padlock_sha256_blocks: mov %rdx,%rcx mov %rdi,%rdx # put aside %rdi movups (%rdi),%xmm0 # copy-in context sub \$128+8,%rsp movups 16(%rdi),%xmm1 movaps %xmm0,(%rsp) mov %rsp,%rdi movaps %xmm1,16(%rsp) mov \$-1,%rax .byte 0xf3,0x0f,0xa6,0xd0 # rep xsha256 movaps (%rsp),%xmm0 movaps 16(%rsp),%xmm1 add \$128+8,%rsp movups %xmm0,(%rdx) # copy-out context movups %xmm1,16(%rdx) ret .size padlock_sha256_blocks,.-padlock_sha256_blocks .globl padlock_sha512_blocks .type padlock_sha512_blocks,\@function,3 .align 16 padlock_sha512_blocks: mov %rdx,%rcx mov %rdi,%rdx # put aside %rdi movups (%rdi),%xmm0 # copy-in context sub \$128+8,%rsp movups 16(%rdi),%xmm1 movups 32(%rdi),%xmm2 movups 48(%rdi),%xmm3 movaps %xmm0,(%rsp) mov %rsp,%rdi movaps %xmm1,16(%rsp) movaps %xmm2,32(%rsp) movaps %xmm3,48(%rsp) .byte 0xf3,0x0f,0xa6,0xe0 # rep xha512 movaps (%rsp),%xmm0 movaps 16(%rsp),%xmm1 movaps 32(%rsp),%xmm2 movaps 48(%rsp),%xmm3 add \$128+8,%rsp movups %xmm0,(%rdx) # copy-out context movups %xmm1,16(%rdx) movups %xmm2,32(%rdx) movups %xmm3,48(%rdx) ret .size padlock_sha512_blocks,.-padlock_sha512_blocks ___ sub generate_mode { my ($mode,$opcode) = @_; # int padlock_$mode_encrypt(void *out, const void *inp, # struct padlock_cipher_data *ctx, size_t len); $code.=<<___; .globl padlock_${mode}_encrypt .type padlock_${mode}_encrypt,\@function,4 .align 16 padlock_${mode}_encrypt: push %rbp push %rbx xor %eax,%eax test \$15,$ctx jnz .L${mode}_abort test \$15,$len jnz .L${mode}_abort lea .Lpadlock_saved_context(%rip),%rax pushf cld call _padlock_verify_ctx lea 16($ctx),$ctx # control word xor %eax,%eax xor %ebx,%ebx testl \$`1<<5`,($ctx) # align bit in control word jnz .L${mode}_aligned test \$0x0f,$out setz %al # !out_misaligned test \$0x0f,$inp setz %bl # !inp_misaligned test %ebx,%eax jnz .L${mode}_aligned neg %rax mov \$$PADLOCK_CHUNK,$chunk not %rax # out_misaligned?-1:0 lea (%rsp),%rbp cmp $chunk,$len cmovc $len,$chunk # chunk=len>PADLOCK_CHUNK?PADLOCK_CHUNK:len and $chunk,%rax # out_misaligned?chunk:0 mov $len,$chunk neg %rax and \$$PADLOCK_CHUNK-1,$chunk # chunk%=PADLOCK_CHUNK lea (%rax,%rbp),%rsp mov \$$PADLOCK_CHUNK,%rax cmovz %rax,$chunk # chunk=chunk?:PADLOCK_CHUNK ___ $code.=<<___ if ($mode eq "ctr32"); .L${mode}_reenter: mov -4($ctx),%eax # pull 32-bit counter bswap %eax neg %eax and \$`$PADLOCK_CHUNK/16-1`,%eax mov \$$PADLOCK_CHUNK,$chunk shl \$4,%eax cmovz $chunk,%rax cmp %rax,$len cmova %rax,$chunk # don't let counter cross PADLOCK_CHUNK cmovbe $len,$chunk ___ $code.=<<___ if ($PADLOCK_PREFETCH{$mode}); cmp $chunk,$len ja .L${mode}_loop mov $inp,%rax # check if prefetch crosses page cmp %rsp,%rbp cmove $out,%rax add $len,%rax neg %rax and \$0xfff,%rax # distance to page boundary cmp \$$PADLOCK_PREFETCH{$mode},%rax mov \$-$PADLOCK_PREFETCH{$mode},%rax cmovae $chunk,%rax # mask=distance<prefetch?-prefetch:-1 and %rax,$chunk jz .L${mode}_unaligned_tail ___ $code.=<<___; jmp .L${mode}_loop .align 16 .L${mode}_loop: cmp $len,$chunk # ctr32 artefact cmova $len,$chunk # ctr32 artefact mov $out,%r8 # save parameters mov $inp,%r9 mov $len,%r10 mov $chunk,$len mov $chunk,%r11 test \$0x0f,$out # out_misaligned cmovnz %rsp,$out test \$0x0f,$inp # inp_misaligned jz .L${mode}_inp_aligned shr \$3,$len .byte 0xf3,0x48,0xa5 # rep movsq sub $chunk,$out mov $chunk,$len mov $out,$inp .L${mode}_inp_aligned: lea -16($ctx),%rax # ivp lea 16($ctx),%rbx # key shr \$4,$len .byte 0xf3,0x0f,0xa7,$opcode # rep xcrypt* ___ $code.=<<___ if ($mode !~ /ecb|ctr/); movdqa (%rax),%xmm0 movdqa %xmm0,-16($ctx) # copy [or refresh] iv ___ $code.=<<___ if ($mode eq "ctr32"); mov -4($ctx),%eax # pull 32-bit counter test \$0xffff0000,%eax jnz .L${mode}_no_carry bswap %eax add \$0x10000,%eax bswap %eax mov %eax,-4($ctx) .L${mode}_no_carry: ___ $code.=<<___; mov %r8,$out # restore parameters mov %r11,$chunk test \$0x0f,$out jz .L${mode}_out_aligned mov $chunk,$len lea (%rsp),$inp shr \$3,$len .byte 0xf3,0x48,0xa5 # rep movsq sub $chunk,$out .L${mode}_out_aligned: mov %r9,$inp mov %r10,$len add $chunk,$out add $chunk,$inp sub $chunk,$len mov \$$PADLOCK_CHUNK,$chunk ___ if (!$PADLOCK_PREFETCH{$mode}) { $code.=<<___; jnz .L${mode}_loop ___ } else { $code.=<<___; jz .L${mode}_break cmp $chunk,$len jae .L${mode}_loop ___ $code.=<<___ if ($mode eq "ctr32"); mov $len,$chunk mov $inp,%rax # check if prefetch crosses page cmp %rsp,%rbp cmove $out,%rax add $len,%rax neg %rax and \$0xfff,%rax # distance to page boundary cmp \$$PADLOCK_PREFETCH{$mode},%rax mov \$-$PADLOCK_PREFETCH{$mode},%rax cmovae $chunk,%rax and %rax,$chunk jnz .L${mode}_loop ___ $code.=<<___; .L${mode}_unaligned_tail: xor %eax,%eax cmp %rsp,%rbp cmove $len,%rax mov $out,%r8 # save parameters mov $len,$chunk sub %rax,%rsp # alloca shr \$3,$len lea (%rsp),$out .byte 0xf3,0x48,0xa5 # rep movsq mov %rsp,$inp mov %r8, $out # restore parameters mov $chunk,$len jmp .L${mode}_loop .align 16 .L${mode}_break: ___ } $code.=<<___; cmp %rbp,%rsp je .L${mode}_done pxor %xmm0,%xmm0 lea (%rsp),%rax .L${mode}_bzero: movaps %xmm0,(%rax) lea 16(%rax),%rax cmp %rax,%rbp ja .L${mode}_bzero .L${mode}_done: lea (%rbp),%rsp jmp .L${mode}_exit .align 16 .L${mode}_aligned: ___ $code.=<<___ if ($mode eq "ctr32"); mov -4($ctx),%eax # pull 32-bit counter bswap %eax neg %eax and \$0xffff,%eax mov \$`16*0x10000`,$chunk shl \$4,%eax cmovz $chunk,%rax cmp %rax,$len cmova %rax,$chunk # don't let counter cross 2^16 cmovbe $len,$chunk jbe .L${mode}_aligned_skip .L${mode}_aligned_loop: mov $len,%r10 # save parameters mov $chunk,$len mov $chunk,%r11 lea -16($ctx),%rax # ivp lea 16($ctx),%rbx # key shr \$4,$len # len/=AES_BLOCK_SIZE .byte 0xf3,0x0f,0xa7,$opcode # rep xcrypt* mov -4($ctx),%eax # pull 32-bit counter bswap %eax add \$0x10000,%eax bswap %eax mov %eax,-4($ctx) mov %r10,$len # restore parameters sub %r11,$len mov \$`16*0x10000`,$chunk jz .L${mode}_exit cmp $chunk,$len jae .L${mode}_aligned_loop .L${mode}_aligned_skip: ___ $code.=<<___ if ($PADLOCK_PREFETCH{$mode}); lea ($inp,$len),%rbp neg %rbp and \$0xfff,%rbp # distance to page boundary xor %eax,%eax cmp \$$PADLOCK_PREFETCH{$mode},%rbp mov \$$PADLOCK_PREFETCH{$mode}-1,%rbp cmovae %rax,%rbp and $len,%rbp # remainder sub %rbp,$len jz .L${mode}_aligned_tail ___ $code.=<<___; lea -16($ctx),%rax # ivp lea 16($ctx),%rbx # key shr \$4,$len # len/=AES_BLOCK_SIZE .byte 0xf3,0x0f,0xa7,$opcode # rep xcrypt* ___ $code.=<<___ if ($mode !~ /ecb|ctr/); movdqa (%rax),%xmm0 movdqa %xmm0,-16($ctx) # copy [or refresh] iv ___ $code.=<<___ if ($PADLOCK_PREFETCH{$mode}); test %rbp,%rbp # check remainder jz .L${mode}_exit .L${mode}_aligned_tail: mov $out,%r8 mov %rbp,$chunk mov %rbp,$len lea (%rsp),%rbp sub $len,%rsp shr \$3,$len lea (%rsp),$out .byte 0xf3,0x48,0xa5 # rep movsq lea (%r8),$out lea (%rsp),$inp mov $chunk,$len jmp .L${mode}_loop ___ $code.=<<___; .L${mode}_exit: mov \$1,%eax lea 8(%rsp),%rsp .L${mode}_abort: pop %rbx pop %rbp ret .size padlock_${mode}_encrypt,.-padlock_${mode}_encrypt ___ } &generate_mode("ecb",0xc8); &generate_mode("cbc",0xd0); &generate_mode("cfb",0xe0); &generate_mode("ofb",0xe8); &generate_mode("ctr32",0xd8); # all 64-bit CPUs have working CTR... $code.=<<___; .asciz "VIA Padlock x86_64 module, CRYPTOGAMS by <appro\@openssl.org>" .align 16 .data .align 8 .Lpadlock_saved_context: .quad 0 ___ $code =~ s/\`([^\`]*)\`/eval($1)/gem; print $code; close STDOUT;
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