-#!/usr/bin/env perl
+#! /usr/bin/env perl
+# Copyright 2011-2023 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the Apache License 2.0 (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
push(@INC,"${dir}","${dir}../../crypto/perlasm");
require "x86asm.pl";
-&asm_init($ARGV[0],$0);
+$output=pop and open STDOUT,">$output";
+
+&asm_init($ARGV[0]);
+%PADLOCK_PREFETCH=(ecb=>128, cbc=>64); # prefetch errata
$PADLOCK_CHUNK=512; # Must be a power of 2 larger than 16
$ctx="edx";
&cpuid ();
&xor ("eax","eax");
&cmp ("ebx","0x".unpack("H*",'tneC'));
- &jne (&label("noluck"));
+ &jne (&label("zhaoxin"));
&cmp ("edx","0x".unpack("H*",'Hrua'));
&jne (&label("noluck"));
&cmp ("ecx","0x".unpack("H*",'slua'));
&jne (&label("noluck"));
+ &jmp (&label("zhaoxinEnd"));
+&set_label("zhaoxin");
+ &cmp ("ebx","0x".unpack("H*",'hS '));
+ &jne (&label("noluck"));
+ &cmp ("edx","0x".unpack("H*",'hgna'));
+ &jne (&label("noluck"));
+ &cmp ("ecx","0x".unpack("H*",' ia'));
+ &jne (&label("noluck"));
+&set_label("zhaoxinEnd");
&mov ("eax",0xC0000000);
&cpuid ();
&mov ("edx","eax");
&function_begin_B("padlock_key_bswap");
&mov ("edx",&wparam(0));
&mov ("ecx",&DWP(240,"edx"));
+ &inc ("ecx");
+ &shl ("ecx",2);
&set_label("bswap_loop");
&mov ("eax",&DWP(0,"edx"));
&bswap ("eax");
&neg ("eax");
&and ($chunk,$PADLOCK_CHUNK-1); # chunk=len%PADLOCK_CHUNK
&lea ("esp",&DWP(0,"eax","ebp")); # alloca
+ &mov ("eax",$PADLOCK_CHUNK);
+ &cmovz ($chunk,"eax"); # chunk=chunk?:PADLOCK_CHUNK
+ &mov ("eax","ebp");
+ &and ("ebp",-16);
&and ("esp",-16);
+ &mov (&DWP(16,"ebp"),"eax");
+ if ($PADLOCK_PREFETCH{$mode}) {
+ &cmp ($len,$chunk);
+ &ja (&label("${mode}_loop"));
+ &mov ("eax",$inp); # check if prefetch crosses page
+ &cmp ("ebp","esp");
+ &cmove ("eax",$out);
+ &add ("eax",$len);
+ &neg ("eax");
+ &and ("eax",0xfff); # distance to page boundary
+ &cmp ("eax",$PADLOCK_PREFETCH{$mode});
+ &mov ("eax",-$PADLOCK_PREFETCH{$mode});
+ &cmovae ("eax",$chunk); # mask=distance<prefetch?-prefetch:-1
+ &and ($chunk,"eax");
+ &jz (&label("${mode}_unaligned_tail"));
+ }
&jmp (&label("${mode}_loop"));
&set_label("${mode}_loop",16);
&test ($out,0x0f);
&jz (&label("${mode}_out_aligned"));
&mov ($len,$chunk);
- &shr ($len,2);
&lea ($inp,&DWP(0,"esp"));
+ &shr ($len,2);
&data_byte(0xf3,0xa5); # rep movsl
&sub ($out,$chunk);
&set_label("${mode}_out_aligned");
&add ($inp,$chunk);
&sub ($len,$chunk);
&mov ($chunk,$PADLOCK_CHUNK);
+ if (!$PADLOCK_PREFETCH{$mode}) {
&jnz (&label("${mode}_loop"));
- if ($mode ne "ctr32") {
- &test ($out,0x0f); # out_misaligned
- &jz (&label("${mode}_done"));
- }
- &mov ($len,"ebp");
- &mov ($out,"esp");
- &sub ($len,"esp");
+ } else {
+ &jz (&label("${mode}_break"));
+ &cmp ($len,$chunk);
+ &jae (&label("${mode}_loop"));
+
+&set_label("${mode}_unaligned_tail");
&xor ("eax","eax");
+ &cmp ("esp","ebp");
+ &cmove ("eax",$len);
+ &sub ("esp","eax"); # alloca
+ &mov ("eax", $out); # save parameters
+ &mov ($chunk,$len);
&shr ($len,2);
- &data_byte(0xf3,0xab); # rep stosl
+ &lea ($out,&DWP(0,"esp"));
+ &data_byte(0xf3,0xa5); # rep movsl
+ &mov ($inp,"esp");
+ &mov ($out,"eax"); # restore parameters
+ &mov ($len,$chunk);
+ &jmp (&label("${mode}_loop"));
+
+&set_label("${mode}_break",16);
+ }
+ if ($mode ne "ctr32") {
+ &cmp ("esp","ebp");
+ &je (&label("${mode}_done"));
+ }
+ &pxor ("xmm0","xmm0");
+ &lea ("eax",&DWP(0,"esp"));
+&set_label("${mode}_bzero");
+ &movaps (&QWP(0,"eax"),"xmm0");
+ &lea ("eax",&DWP(16,"eax"));
+ &cmp ("ebp","eax");
+ &ja (&label("${mode}_bzero"));
+
&set_label("${mode}_done");
+ &mov ("ebp",&DWP(16,"ebp"));
&lea ("esp",&DWP(24,"ebp"));
if ($mode ne "ctr32") {
&jmp (&label("${mode}_exit"));
&set_label("${mode}_aligned",16);
+ if ($PADLOCK_PREFETCH{$mode}) {
+ &lea ("ebp",&DWP(0,$inp,$len));
+ &neg ("ebp");
+ &and ("ebp",0xfff); # distance to page boundary
+ &xor ("eax","eax");
+ &cmp ("ebp",$PADLOCK_PREFETCH{$mode});
+ &mov ("ebp",$PADLOCK_PREFETCH{$mode}-1);
+ &cmovae ("ebp","eax");
+ &and ("ebp",$len); # remainder
+ &sub ($len,"ebp");
+ &jz (&label("${mode}_aligned_tail"));
+ }
&lea ("eax",&DWP(-16,$ctx)); # ivp
&lea ("ebx",&DWP(16,$ctx)); # key
&shr ($len,4); # len/=AES_BLOCK_SIZE
&movaps ("xmm0",&QWP(0,"eax"));
&movaps (&QWP(-16,$ctx),"xmm0"); # copy [or refresh] iv
}
+ if ($PADLOCK_PREFETCH{$mode}) {
+ &test ("ebp","ebp");
+ &jz (&label("${mode}_exit"));
+
+&set_label("${mode}_aligned_tail");
+ &mov ($len,"ebp");
+ &lea ("ebp",&DWP(-24,"esp"));
+ &mov ("esp","ebp");
+ &mov ("eax","ebp");
+ &sub ("esp",$len);
+ &and ("ebp",-16);
+ &and ("esp",-16);
+ &mov (&DWP(16,"ebp"),"eax");
+ &mov ("eax", $out); # save parameters
+ &mov ($chunk,$len);
+ &shr ($len,2);
+ &lea ($out,&DWP(0,"esp"));
+ &data_byte(0xf3,0xa5); # rep movsl
+ &mov ($inp,"esp");
+ &mov ($out,"eax"); # restore parameters
+ &mov ($len,$chunk);
+ &jmp (&label("${mode}_loop"));
+ }
&set_label("${mode}_exit"); }
&mov ("eax",1);
&lea ("esp",&DWP(4,"esp")); # popf
&data_word(0);
&asm_finish();
+
+close STDOUT;
projects / openssl.git / blobdiff