mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-18 15:27:48 +01:00
7c0aa811ec
Signed-off-by: Sergey Isakov <isakov-sl@bk.ru>
807 lines
19 KiB
Perl
807 lines
19 KiB
Perl
#!/usr/bin/env perl
|
||
#
|
||
# ====================================================================
|
||
# 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/.
|
||
# ====================================================================
|
||
#
|
||
# March, June 2010
|
||
#
|
||
# The module implements "4-bit" GCM GHASH function and underlying
|
||
# single multiplication operation in GF(2^128). "4-bit" means that
|
||
# it uses 256 bytes per-key table [+128 bytes shared table]. GHASH
|
||
# function features so called "528B" variant utilizing additional
|
||
# 256+16 bytes of per-key storage [+512 bytes shared table].
|
||
# Performance results are for this streamed GHASH subroutine and are
|
||
# expressed in cycles per processed byte, less is better:
|
||
#
|
||
# gcc 3.4.x(*) assembler
|
||
#
|
||
# P4 28.6 14.0 +100%
|
||
# Opteron 19.3 7.7 +150%
|
||
# Core2 17.8 8.1(**) +120%
|
||
#
|
||
# (*) comparison is not completely fair, because C results are
|
||
# for vanilla "256B" implementation, while assembler results
|
||
# are for "528B";-)
|
||
# (**) it's mystery [to me] why Core2 result is not same as for
|
||
# Opteron;
|
||
|
||
# May 2010
|
||
#
|
||
# Add PCLMULQDQ version performing at 2.02 cycles per processed byte.
|
||
# See ghash-x86.pl for background information and details about coding
|
||
# techniques.
|
||
#
|
||
# Special thanks to David Woodhouse <dwmw2@infradead.org> for
|
||
# providing access to a Westmere-based system on behalf of Intel
|
||
# Open Source Technology Centre.
|
||
|
||
$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}../../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;
|
||
|
||
# common register layout
|
||
$nlo="%rax";
|
||
$nhi="%rbx";
|
||
$Zlo="%r8";
|
||
$Zhi="%r9";
|
||
$tmp="%r10";
|
||
$rem_4bit = "%r11";
|
||
|
||
$Xi="%rdi";
|
||
$Htbl="%rsi";
|
||
|
||
# per-function register layout
|
||
$cnt="%rcx";
|
||
$rem="%rdx";
|
||
|
||
sub LB() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/ or
|
||
$r =~ s/%[er]([sd]i)/%\1l/ or
|
||
$r =~ s/%[er](bp)/%\1l/ or
|
||
$r =~ s/%(r[0-9]+)[d]?/%\1b/; $r; }
|
||
|
||
sub AUTOLOAD() # thunk [simplified] 32-bit style perlasm
|
||
{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://;
|
||
my $arg = pop;
|
||
$arg = "\$$arg" if ($arg*1 eq $arg);
|
||
$code .= "\t$opcode\t".join(',',$arg,reverse @_)."\n";
|
||
}
|
||
|
||
{ my $N;
|
||
sub loop() {
|
||
my $inp = shift;
|
||
|
||
$N++;
|
||
$code.=<<___;
|
||
xor $nlo,$nlo
|
||
xor $nhi,$nhi
|
||
mov `&LB("$Zlo")`,`&LB("$nlo")`
|
||
mov `&LB("$Zlo")`,`&LB("$nhi")`
|
||
shl \$4,`&LB("$nlo")`
|
||
mov \$14,$cnt
|
||
mov 8($Htbl,$nlo),$Zlo
|
||
mov ($Htbl,$nlo),$Zhi
|
||
and \$0xf0,`&LB("$nhi")`
|
||
mov $Zlo,$rem
|
||
jmp .Loop$N
|
||
|
||
.align 16
|
||
.Loop$N:
|
||
shr \$4,$Zlo
|
||
and \$0xf,$rem
|
||
mov $Zhi,$tmp
|
||
mov ($inp,$cnt),`&LB("$nlo")`
|
||
shr \$4,$Zhi
|
||
xor 8($Htbl,$nhi),$Zlo
|
||
shl \$60,$tmp
|
||
xor ($Htbl,$nhi),$Zhi
|
||
mov `&LB("$nlo")`,`&LB("$nhi")`
|
||
xor ($rem_4bit,$rem,8),$Zhi
|
||
mov $Zlo,$rem
|
||
shl \$4,`&LB("$nlo")`
|
||
xor $tmp,$Zlo
|
||
dec $cnt
|
||
js .Lbreak$N
|
||
|
||
shr \$4,$Zlo
|
||
and \$0xf,$rem
|
||
mov $Zhi,$tmp
|
||
shr \$4,$Zhi
|
||
xor 8($Htbl,$nlo),$Zlo
|
||
shl \$60,$tmp
|
||
xor ($Htbl,$nlo),$Zhi
|
||
and \$0xf0,`&LB("$nhi")`
|
||
xor ($rem_4bit,$rem,8),$Zhi
|
||
mov $Zlo,$rem
|
||
xor $tmp,$Zlo
|
||
jmp .Loop$N
|
||
|
||
.align 16
|
||
.Lbreak$N:
|
||
shr \$4,$Zlo
|
||
and \$0xf,$rem
|
||
mov $Zhi,$tmp
|
||
shr \$4,$Zhi
|
||
xor 8($Htbl,$nlo),$Zlo
|
||
shl \$60,$tmp
|
||
xor ($Htbl,$nlo),$Zhi
|
||
and \$0xf0,`&LB("$nhi")`
|
||
xor ($rem_4bit,$rem,8),$Zhi
|
||
mov $Zlo,$rem
|
||
xor $tmp,$Zlo
|
||
|
||
shr \$4,$Zlo
|
||
and \$0xf,$rem
|
||
mov $Zhi,$tmp
|
||
shr \$4,$Zhi
|
||
xor 8($Htbl,$nhi),$Zlo
|
||
shl \$60,$tmp
|
||
xor ($Htbl,$nhi),$Zhi
|
||
xor $tmp,$Zlo
|
||
xor ($rem_4bit,$rem,8),$Zhi
|
||
|
||
bswap $Zlo
|
||
bswap $Zhi
|
||
___
|
||
}}
|
||
|
||
$code=<<___;
|
||
.text
|
||
|
||
.globl gcm_gmult_4bit
|
||
.type gcm_gmult_4bit,\@function,2
|
||
.align 16
|
||
gcm_gmult_4bit:
|
||
push %rbx
|
||
push %rbp # %rbp and %r12 are pushed exclusively in
|
||
push %r12 # order to reuse Win64 exception handler...
|
||
.Lgmult_prologue:
|
||
|
||
movzb 15($Xi),$Zlo
|
||
lea .Lrem_4bit(%rip),$rem_4bit
|
||
___
|
||
&loop ($Xi);
|
||
$code.=<<___;
|
||
mov $Zlo,8($Xi)
|
||
mov $Zhi,($Xi)
|
||
|
||
mov 16(%rsp),%rbx
|
||
lea 24(%rsp),%rsp
|
||
.Lgmult_epilogue:
|
||
ret
|
||
.size gcm_gmult_4bit,.-gcm_gmult_4bit
|
||
___
|
||
|
||
# per-function register layout
|
||
$inp="%rdx";
|
||
$len="%rcx";
|
||
$rem_8bit=$rem_4bit;
|
||
|
||
$code.=<<___;
|
||
.globl gcm_ghash_4bit
|
||
.type gcm_ghash_4bit,\@function,4
|
||
.align 16
|
||
gcm_ghash_4bit:
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
sub \$280,%rsp
|
||
.Lghash_prologue:
|
||
mov $inp,%r14 # reassign couple of args
|
||
mov $len,%r15
|
||
___
|
||
{ my $inp="%r14";
|
||
my $dat="%edx";
|
||
my $len="%r15";
|
||
my @nhi=("%ebx","%ecx");
|
||
my @rem=("%r12","%r13");
|
||
my $Hshr4="%rbp";
|
||
|
||
&sub ($Htbl,-128); # size optimization
|
||
&lea ($Hshr4,"16+128(%rsp)");
|
||
{ my @lo =($nlo,$nhi);
|
||
my @hi =($Zlo,$Zhi);
|
||
|
||
&xor ($dat,$dat);
|
||
for ($i=0,$j=-2;$i<18;$i++,$j++) {
|
||
&mov ("$j(%rsp)",&LB($dat)) if ($i>1);
|
||
&or ($lo[0],$tmp) if ($i>1);
|
||
&mov (&LB($dat),&LB($lo[1])) if ($i>0 && $i<17);
|
||
&shr ($lo[1],4) if ($i>0 && $i<17);
|
||
&mov ($tmp,$hi[1]) if ($i>0 && $i<17);
|
||
&shr ($hi[1],4) if ($i>0 && $i<17);
|
||
&mov ("8*$j($Hshr4)",$hi[0]) if ($i>1);
|
||
&mov ($hi[0],"16*$i+0-128($Htbl)") if ($i<16);
|
||
&shl (&LB($dat),4) if ($i>0 && $i<17);
|
||
&mov ("8*$j-128($Hshr4)",$lo[0]) if ($i>1);
|
||
&mov ($lo[0],"16*$i+8-128($Htbl)") if ($i<16);
|
||
&shl ($tmp,60) if ($i>0 && $i<17);
|
||
|
||
push (@lo,shift(@lo));
|
||
push (@hi,shift(@hi));
|
||
}
|
||
}
|
||
&add ($Htbl,-128);
|
||
&mov ($Zlo,"8($Xi)");
|
||
&mov ($Zhi,"0($Xi)");
|
||
&add ($len,$inp); # pointer to the end of data
|
||
&lea ($rem_8bit,".Lrem_8bit(%rip)");
|
||
&jmp (".Louter_loop");
|
||
|
||
$code.=".align 16\n.Louter_loop:\n";
|
||
&xor ($Zhi,"($inp)");
|
||
&mov ("%rdx","8($inp)");
|
||
&lea ($inp,"16($inp)");
|
||
&xor ("%rdx",$Zlo);
|
||
&mov ("($Xi)",$Zhi);
|
||
&mov ("8($Xi)","%rdx");
|
||
&shr ("%rdx",32);
|
||
|
||
&xor ($nlo,$nlo);
|
||
&rol ($dat,8);
|
||
&mov (&LB($nlo),&LB($dat));
|
||
&movz ($nhi[0],&LB($dat));
|
||
&shl (&LB($nlo),4);
|
||
&shr ($nhi[0],4);
|
||
|
||
for ($j=11,$i=0;$i<15;$i++) {
|
||
&rol ($dat,8);
|
||
&xor ($Zlo,"8($Htbl,$nlo)") if ($i>0);
|
||
&xor ($Zhi,"($Htbl,$nlo)") if ($i>0);
|
||
&mov ($Zlo,"8($Htbl,$nlo)") if ($i==0);
|
||
&mov ($Zhi,"($Htbl,$nlo)") if ($i==0);
|
||
|
||
&mov (&LB($nlo),&LB($dat));
|
||
&xor ($Zlo,$tmp) if ($i>0);
|
||
&movzw ($rem[1],"($rem_8bit,$rem[1],2)") if ($i>0);
|
||
|
||
&movz ($nhi[1],&LB($dat));
|
||
&shl (&LB($nlo),4);
|
||
&movzb ($rem[0],"(%rsp,$nhi[0])");
|
||
|
||
&shr ($nhi[1],4) if ($i<14);
|
||
&and ($nhi[1],0xf0) if ($i==14);
|
||
&shl ($rem[1],48) if ($i>0);
|
||
&xor ($rem[0],$Zlo);
|
||
|
||
&mov ($tmp,$Zhi);
|
||
&xor ($Zhi,$rem[1]) if ($i>0);
|
||
&shr ($Zlo,8);
|
||
|
||
&movz ($rem[0],&LB($rem[0]));
|
||
&mov ($dat,"$j($Xi)") if (--$j%4==0);
|
||
&shr ($Zhi,8);
|
||
|
||
&xor ($Zlo,"-128($Hshr4,$nhi[0],8)");
|
||
&shl ($tmp,56);
|
||
&xor ($Zhi,"($Hshr4,$nhi[0],8)");
|
||
|
||
unshift (@nhi,pop(@nhi)); # "rotate" registers
|
||
unshift (@rem,pop(@rem));
|
||
}
|
||
&movzw ($rem[1],"($rem_8bit,$rem[1],2)");
|
||
&xor ($Zlo,"8($Htbl,$nlo)");
|
||
&xor ($Zhi,"($Htbl,$nlo)");
|
||
|
||
&shl ($rem[1],48);
|
||
&xor ($Zlo,$tmp);
|
||
|
||
&xor ($Zhi,$rem[1]);
|
||
&movz ($rem[0],&LB($Zlo));
|
||
&shr ($Zlo,4);
|
||
|
||
&mov ($tmp,$Zhi);
|
||
&shl (&LB($rem[0]),4);
|
||
&shr ($Zhi,4);
|
||
|
||
&xor ($Zlo,"8($Htbl,$nhi[0])");
|
||
&movzw ($rem[0],"($rem_8bit,$rem[0],2)");
|
||
&shl ($tmp,60);
|
||
|
||
&xor ($Zhi,"($Htbl,$nhi[0])");
|
||
&xor ($Zlo,$tmp);
|
||
&shl ($rem[0],48);
|
||
|
||
&bswap ($Zlo);
|
||
&xor ($Zhi,$rem[0]);
|
||
|
||
&bswap ($Zhi);
|
||
&cmp ($inp,$len);
|
||
&jb (".Louter_loop");
|
||
}
|
||
$code.=<<___;
|
||
mov $Zlo,8($Xi)
|
||
mov $Zhi,($Xi)
|
||
|
||
lea 280(%rsp),%rsi
|
||
mov 0(%rsi),%r15
|
||
mov 8(%rsi),%r14
|
||
mov 16(%rsi),%r13
|
||
mov 24(%rsi),%r12
|
||
mov 32(%rsi),%rbp
|
||
mov 40(%rsi),%rbx
|
||
lea 48(%rsi),%rsp
|
||
.Lghash_epilogue:
|
||
ret
|
||
.size gcm_ghash_4bit,.-gcm_ghash_4bit
|
||
___
|
||
|
||
######################################################################
|
||
# PCLMULQDQ version.
|
||
|
||
@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
|
||
("%rdi","%rsi","%rdx","%rcx"); # Unix order
|
||
|
||
($Xi,$Xhi)=("%xmm0","%xmm1"); $Hkey="%xmm2";
|
||
($T1,$T2,$T3)=("%xmm3","%xmm4","%xmm5");
|
||
|
||
sub clmul64x64_T2 { # minimal register pressure
|
||
my ($Xhi,$Xi,$Hkey,$modulo)=@_;
|
||
|
||
$code.=<<___ if (!defined($modulo));
|
||
movdqa $Xi,$Xhi #
|
||
pshufd \$0b01001110,$Xi,$T1
|
||
pshufd \$0b01001110,$Hkey,$T2
|
||
pxor $Xi,$T1 #
|
||
pxor $Hkey,$T2
|
||
___
|
||
$code.=<<___;
|
||
pclmulqdq \$0x00,$Hkey,$Xi #######
|
||
pclmulqdq \$0x11,$Hkey,$Xhi #######
|
||
pclmulqdq \$0x00,$T2,$T1 #######
|
||
pxor $Xi,$T1 #
|
||
pxor $Xhi,$T1 #
|
||
|
||
movdqa $T1,$T2 #
|
||
psrldq \$8,$T1
|
||
pslldq \$8,$T2 #
|
||
pxor $T1,$Xhi
|
||
pxor $T2,$Xi #
|
||
___
|
||
}
|
||
|
||
sub reduction_alg9 { # 17/13 times faster than Intel version
|
||
my ($Xhi,$Xi) = @_;
|
||
|
||
$code.=<<___;
|
||
# 1st phase
|
||
movdqa $Xi,$T1 #
|
||
psllq \$1,$Xi
|
||
pxor $T1,$Xi #
|
||
psllq \$5,$Xi #
|
||
pxor $T1,$Xi #
|
||
psllq \$57,$Xi #
|
||
movdqa $Xi,$T2 #
|
||
pslldq \$8,$Xi
|
||
psrldq \$8,$T2 #
|
||
pxor $T1,$Xi
|
||
pxor $T2,$Xhi #
|
||
|
||
# 2nd phase
|
||
movdqa $Xi,$T2
|
||
psrlq \$5,$Xi
|
||
pxor $T2,$Xi #
|
||
psrlq \$1,$Xi #
|
||
pxor $T2,$Xi #
|
||
pxor $Xhi,$T2
|
||
psrlq \$1,$Xi #
|
||
pxor $T2,$Xi #
|
||
___
|
||
}
|
||
|
||
{ my ($Htbl,$Xip)=@_4args;
|
||
|
||
$code.=<<___;
|
||
.globl gcm_init_clmul
|
||
.type gcm_init_clmul,\@abi-omnipotent
|
||
.align 16
|
||
gcm_init_clmul:
|
||
movdqu ($Xip),$Hkey
|
||
pshufd \$0b01001110,$Hkey,$Hkey # dword swap
|
||
|
||
# <<1 twist
|
||
pshufd \$0b11111111,$Hkey,$T2 # broadcast uppermost dword
|
||
movdqa $Hkey,$T1
|
||
psllq \$1,$Hkey
|
||
pxor $T3,$T3 #
|
||
psrlq \$63,$T1
|
||
pcmpgtd $T2,$T3 # broadcast carry bit
|
||
pslldq \$8,$T1
|
||
por $T1,$Hkey # H<<=1
|
||
|
||
# magic reduction
|
||
pand .L0x1c2_polynomial(%rip),$T3
|
||
pxor $T3,$Hkey # if(carry) H^=0x1c2_polynomial
|
||
|
||
# calculate H^2
|
||
movdqa $Hkey,$Xi
|
||
___
|
||
&clmul64x64_T2 ($Xhi,$Xi,$Hkey);
|
||
&reduction_alg9 ($Xhi,$Xi);
|
||
$code.=<<___;
|
||
movdqu $Hkey,($Htbl) # save H
|
||
movdqu $Xi,16($Htbl) # save H^2
|
||
ret
|
||
.size gcm_init_clmul,.-gcm_init_clmul
|
||
___
|
||
}
|
||
|
||
{ my ($Xip,$Htbl)=@_4args;
|
||
|
||
$code.=<<___;
|
||
.globl gcm_gmult_clmul
|
||
.type gcm_gmult_clmul,\@abi-omnipotent
|
||
.align 16
|
||
gcm_gmult_clmul:
|
||
movdqu ($Xip),$Xi
|
||
movdqa .Lbswap_mask(%rip),$T3
|
||
movdqu ($Htbl),$Hkey
|
||
pshufb $T3,$Xi
|
||
___
|
||
&clmul64x64_T2 ($Xhi,$Xi,$Hkey);
|
||
&reduction_alg9 ($Xhi,$Xi);
|
||
$code.=<<___;
|
||
pshufb $T3,$Xi
|
||
movdqu $Xi,($Xip)
|
||
ret
|
||
.size gcm_gmult_clmul,.-gcm_gmult_clmul
|
||
___
|
||
}
|
||
|
||
{ my ($Xip,$Htbl,$inp,$len)=@_4args;
|
||
my $Xn="%xmm6";
|
||
my $Xhn="%xmm7";
|
||
my $Hkey2="%xmm8";
|
||
my $T1n="%xmm9";
|
||
my $T2n="%xmm10";
|
||
|
||
$code.=<<___;
|
||
.globl gcm_ghash_clmul
|
||
.type gcm_ghash_clmul,\@abi-omnipotent
|
||
.align 16
|
||
gcm_ghash_clmul:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
.LSEH_begin_gcm_ghash_clmul:
|
||
# I can't trust assembler to use specific encoding:-(
|
||
.byte 0x48,0x83,0xec,0x58 #sub \$0x58,%rsp
|
||
.byte 0x0f,0x29,0x34,0x24 #movaps %xmm6,(%rsp)
|
||
.byte 0x0f,0x29,0x7c,0x24,0x10 #movdqa %xmm7,0x10(%rsp)
|
||
.byte 0x44,0x0f,0x29,0x44,0x24,0x20 #movaps %xmm8,0x20(%rsp)
|
||
.byte 0x44,0x0f,0x29,0x4c,0x24,0x30 #movaps %xmm9,0x30(%rsp)
|
||
.byte 0x44,0x0f,0x29,0x54,0x24,0x40 #movaps %xmm10,0x40(%rsp)
|
||
___
|
||
$code.=<<___;
|
||
movdqa .Lbswap_mask(%rip),$T3
|
||
|
||
movdqu ($Xip),$Xi
|
||
movdqu ($Htbl),$Hkey
|
||
pshufb $T3,$Xi
|
||
|
||
sub \$0x10,$len
|
||
jz .Lodd_tail
|
||
|
||
movdqu 16($Htbl),$Hkey2
|
||
#######
|
||
# Xi+2 =[H*(Ii+1 + Xi+1)] mod P =
|
||
# [(H*Ii+1) + (H*Xi+1)] mod P =
|
||
# [(H*Ii+1) + H^2*(Ii+Xi)] mod P
|
||
#
|
||
movdqu ($inp),$T1 # Ii
|
||
movdqu 16($inp),$Xn # Ii+1
|
||
pshufb $T3,$T1
|
||
pshufb $T3,$Xn
|
||
pxor $T1,$Xi # Ii+Xi
|
||
___
|
||
&clmul64x64_T2 ($Xhn,$Xn,$Hkey); # H*Ii+1
|
||
$code.=<<___;
|
||
movdqa $Xi,$Xhi #
|
||
pshufd \$0b01001110,$Xi,$T1
|
||
pshufd \$0b01001110,$Hkey2,$T2
|
||
pxor $Xi,$T1 #
|
||
pxor $Hkey2,$T2
|
||
|
||
lea 32($inp),$inp # i+=2
|
||
sub \$0x20,$len
|
||
jbe .Leven_tail
|
||
|
||
.Lmod_loop:
|
||
___
|
||
&clmul64x64_T2 ($Xhi,$Xi,$Hkey2,1); # H^2*(Ii+Xi)
|
||
$code.=<<___;
|
||
movdqu ($inp),$T1 # Ii
|
||
pxor $Xn,$Xi # (H*Ii+1) + H^2*(Ii+Xi)
|
||
pxor $Xhn,$Xhi
|
||
|
||
movdqu 16($inp),$Xn # Ii+1
|
||
pshufb $T3,$T1
|
||
pshufb $T3,$Xn
|
||
|
||
movdqa $Xn,$Xhn #
|
||
pshufd \$0b01001110,$Xn,$T1n
|
||
pshufd \$0b01001110,$Hkey,$T2n
|
||
pxor $Xn,$T1n #
|
||
pxor $Hkey,$T2n
|
||
pxor $T1,$Xhi # "Ii+Xi", consume early
|
||
|
||
movdqa $Xi,$T1 # 1st phase
|
||
psllq \$1,$Xi
|
||
pxor $T1,$Xi #
|
||
psllq \$5,$Xi #
|
||
pxor $T1,$Xi #
|
||
pclmulqdq \$0x00,$Hkey,$Xn #######
|
||
psllq \$57,$Xi #
|
||
movdqa $Xi,$T2 #
|
||
pslldq \$8,$Xi
|
||
psrldq \$8,$T2 #
|
||
pxor $T1,$Xi
|
||
pxor $T2,$Xhi #
|
||
|
||
pclmulqdq \$0x11,$Hkey,$Xhn #######
|
||
movdqa $Xi,$T2 # 2nd phase
|
||
psrlq \$5,$Xi
|
||
pxor $T2,$Xi #
|
||
psrlq \$1,$Xi #
|
||
pxor $T2,$Xi #
|
||
pxor $Xhi,$T2
|
||
psrlq \$1,$Xi #
|
||
pxor $T2,$Xi #
|
||
|
||
pclmulqdq \$0x00,$T2n,$T1n #######
|
||
movdqa $Xi,$Xhi #
|
||
pshufd \$0b01001110,$Xi,$T1
|
||
pshufd \$0b01001110,$Hkey2,$T2
|
||
pxor $Xi,$T1 #
|
||
pxor $Hkey2,$T2
|
||
|
||
pxor $Xn,$T1n #
|
||
pxor $Xhn,$T1n #
|
||
movdqa $T1n,$T2n #
|
||
psrldq \$8,$T1n
|
||
pslldq \$8,$T2n #
|
||
pxor $T1n,$Xhn
|
||
pxor $T2n,$Xn #
|
||
|
||
lea 32($inp),$inp
|
||
sub \$0x20,$len
|
||
ja .Lmod_loop
|
||
|
||
.Leven_tail:
|
||
___
|
||
&clmul64x64_T2 ($Xhi,$Xi,$Hkey2,1); # H^2*(Ii+Xi)
|
||
$code.=<<___;
|
||
pxor $Xn,$Xi # (H*Ii+1) + H^2*(Ii+Xi)
|
||
pxor $Xhn,$Xhi
|
||
___
|
||
&reduction_alg9 ($Xhi,$Xi);
|
||
$code.=<<___;
|
||
test $len,$len
|
||
jnz .Ldone
|
||
|
||
.Lodd_tail:
|
||
movdqu ($inp),$T1 # Ii
|
||
pshufb $T3,$T1
|
||
pxor $T1,$Xi # Ii+Xi
|
||
___
|
||
&clmul64x64_T2 ($Xhi,$Xi,$Hkey); # H*(Ii+Xi)
|
||
&reduction_alg9 ($Xhi,$Xi);
|
||
$code.=<<___;
|
||
.Ldone:
|
||
pshufb $T3,$Xi
|
||
movdqu $Xi,($Xip)
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
movaps 0x10(%rsp),%xmm7
|
||
movaps 0x20(%rsp),%xmm8
|
||
movaps 0x30(%rsp),%xmm9
|
||
movaps 0x40(%rsp),%xmm10
|
||
add \$0x58,%rsp
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.LSEH_end_gcm_ghash_clmul:
|
||
.size gcm_ghash_clmul,.-gcm_ghash_clmul
|
||
___
|
||
}
|
||
|
||
$code.=<<___;
|
||
.align 64
|
||
.Lbswap_mask:
|
||
.byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
|
||
.L0x1c2_polynomial:
|
||
.byte 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0xc2
|
||
.align 64
|
||
.type .Lrem_4bit,\@object
|
||
.Lrem_4bit:
|
||
.long 0,`0x0000<<16`,0,`0x1C20<<16`,0,`0x3840<<16`,0,`0x2460<<16`
|
||
.long 0,`0x7080<<16`,0,`0x6CA0<<16`,0,`0x48C0<<16`,0,`0x54E0<<16`
|
||
.long 0,`0xE100<<16`,0,`0xFD20<<16`,0,`0xD940<<16`,0,`0xC560<<16`
|
||
.long 0,`0x9180<<16`,0,`0x8DA0<<16`,0,`0xA9C0<<16`,0,`0xB5E0<<16`
|
||
.type .Lrem_8bit,\@object
|
||
.Lrem_8bit:
|
||
.value 0x0000,0x01C2,0x0384,0x0246,0x0708,0x06CA,0x048C,0x054E
|
||
.value 0x0E10,0x0FD2,0x0D94,0x0C56,0x0918,0x08DA,0x0A9C,0x0B5E
|
||
.value 0x1C20,0x1DE2,0x1FA4,0x1E66,0x1B28,0x1AEA,0x18AC,0x196E
|
||
.value 0x1230,0x13F2,0x11B4,0x1076,0x1538,0x14FA,0x16BC,0x177E
|
||
.value 0x3840,0x3982,0x3BC4,0x3A06,0x3F48,0x3E8A,0x3CCC,0x3D0E
|
||
.value 0x3650,0x3792,0x35D4,0x3416,0x3158,0x309A,0x32DC,0x331E
|
||
.value 0x2460,0x25A2,0x27E4,0x2626,0x2368,0x22AA,0x20EC,0x212E
|
||
.value 0x2A70,0x2BB2,0x29F4,0x2836,0x2D78,0x2CBA,0x2EFC,0x2F3E
|
||
.value 0x7080,0x7142,0x7304,0x72C6,0x7788,0x764A,0x740C,0x75CE
|
||
.value 0x7E90,0x7F52,0x7D14,0x7CD6,0x7998,0x785A,0x7A1C,0x7BDE
|
||
.value 0x6CA0,0x6D62,0x6F24,0x6EE6,0x6BA8,0x6A6A,0x682C,0x69EE
|
||
.value 0x62B0,0x6372,0x6134,0x60F6,0x65B8,0x647A,0x663C,0x67FE
|
||
.value 0x48C0,0x4902,0x4B44,0x4A86,0x4FC8,0x4E0A,0x4C4C,0x4D8E
|
||
.value 0x46D0,0x4712,0x4554,0x4496,0x41D8,0x401A,0x425C,0x439E
|
||
.value 0x54E0,0x5522,0x5764,0x56A6,0x53E8,0x522A,0x506C,0x51AE
|
||
.value 0x5AF0,0x5B32,0x5974,0x58B6,0x5DF8,0x5C3A,0x5E7C,0x5FBE
|
||
.value 0xE100,0xE0C2,0xE284,0xE346,0xE608,0xE7CA,0xE58C,0xE44E
|
||
.value 0xEF10,0xEED2,0xEC94,0xED56,0xE818,0xE9DA,0xEB9C,0xEA5E
|
||
.value 0xFD20,0xFCE2,0xFEA4,0xFF66,0xFA28,0xFBEA,0xF9AC,0xF86E
|
||
.value 0xF330,0xF2F2,0xF0B4,0xF176,0xF438,0xF5FA,0xF7BC,0xF67E
|
||
.value 0xD940,0xD882,0xDAC4,0xDB06,0xDE48,0xDF8A,0xDDCC,0xDC0E
|
||
.value 0xD750,0xD692,0xD4D4,0xD516,0xD058,0xD19A,0xD3DC,0xD21E
|
||
.value 0xC560,0xC4A2,0xC6E4,0xC726,0xC268,0xC3AA,0xC1EC,0xC02E
|
||
.value 0xCB70,0xCAB2,0xC8F4,0xC936,0xCC78,0xCDBA,0xCFFC,0xCE3E
|
||
.value 0x9180,0x9042,0x9204,0x93C6,0x9688,0x974A,0x950C,0x94CE
|
||
.value 0x9F90,0x9E52,0x9C14,0x9DD6,0x9898,0x995A,0x9B1C,0x9ADE
|
||
.value 0x8DA0,0x8C62,0x8E24,0x8FE6,0x8AA8,0x8B6A,0x892C,0x88EE
|
||
.value 0x83B0,0x8272,0x8034,0x81F6,0x84B8,0x857A,0x873C,0x86FE
|
||
.value 0xA9C0,0xA802,0xAA44,0xAB86,0xAEC8,0xAF0A,0xAD4C,0xAC8E
|
||
.value 0xA7D0,0xA612,0xA454,0xA596,0xA0D8,0xA11A,0xA35C,0xA29E
|
||
.value 0xB5E0,0xB422,0xB664,0xB7A6,0xB2E8,0xB32A,0xB16C,0xB0AE
|
||
.value 0xBBF0,0xBA32,0xB874,0xB9B6,0xBCF8,0xBD3A,0xBF7C,0xBEBE
|
||
|
||
.asciz "GHASH for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
|
||
.align 64
|
||
___
|
||
|
||
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
|
||
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
|
||
if ($win64) {
|
||
$rec="%rcx";
|
||
$frame="%rdx";
|
||
$context="%r8";
|
||
$disp="%r9";
|
||
|
||
$code.=<<___;
|
||
.extern __imp_RtlVirtualUnwind
|
||
.type se_handler,\@abi-omnipotent
|
||
.align 16
|
||
se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 120($context),%rax # pull context->Rax
|
||
mov 248($context),%rbx # pull context->Rip
|
||
|
||
mov 8($disp),%rsi # disp->ImageBase
|
||
mov 56($disp),%r11 # disp->HandlerData
|
||
|
||
mov 0(%r11),%r10d # HandlerData[0]
|
||
lea (%rsi,%r10),%r10 # prologue label
|
||
cmp %r10,%rbx # context->Rip<prologue label
|
||
jb .Lin_prologue
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
|
||
mov 4(%r11),%r10d # HandlerData[1]
|
||
lea (%rsi,%r10),%r10 # epilogue label
|
||
cmp %r10,%rbx # context->Rip>=epilogue label
|
||
jae .Lin_prologue
|
||
|
||
lea 24(%rax),%rax # adjust "rsp"
|
||
|
||
mov -8(%rax),%rbx
|
||
mov -16(%rax),%rbp
|
||
mov -24(%rax),%r12
|
||
mov %rbx,144($context) # restore context->Rbx
|
||
mov %rbp,160($context) # restore context->Rbp
|
||
mov %r12,216($context) # restore context->R12
|
||
|
||
.Lin_prologue:
|
||
mov 8(%rax),%rdi
|
||
mov 16(%rax),%rsi
|
||
mov %rax,152($context) # restore context->Rsp
|
||
mov %rsi,168($context) # restore context->Rsi
|
||
mov %rdi,176($context) # restore context->Rdi
|
||
|
||
mov 40($disp),%rdi # disp->ContextRecord
|
||
mov $context,%rsi # context
|
||
mov \$`1232/8`,%ecx # sizeof(CONTEXT)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
|
||
mov $disp,%rsi
|
||
xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
|
||
mov 8(%rsi),%rdx # arg2, disp->ImageBase
|
||
mov 0(%rsi),%r8 # arg3, disp->ControlPc
|
||
mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
|
||
mov 40(%rsi),%r10 # disp->ContextRecord
|
||
lea 56(%rsi),%r11 # &disp->HandlerData
|
||
lea 24(%rsi),%r12 # &disp->EstablisherFrame
|
||
mov %r10,32(%rsp) # arg5
|
||
mov %r11,40(%rsp) # arg6
|
||
mov %r12,48(%rsp) # arg7
|
||
mov %rcx,56(%rsp) # arg8, (NULL)
|
||
call *__imp_RtlVirtualUnwind(%rip)
|
||
|
||
mov \$1,%eax # ExceptionContinueSearch
|
||
add \$64,%rsp
|
||
popfq
|
||
pop %r15
|
||
pop %r14
|
||
pop %r13
|
||
pop %r12
|
||
pop %rbp
|
||
pop %rbx
|
||
pop %rdi
|
||
pop %rsi
|
||
ret
|
||
.size se_handler,.-se_handler
|
||
|
||
.section .pdata
|
||
.align 4
|
||
.rva .LSEH_begin_gcm_gmult_4bit
|
||
.rva .LSEH_end_gcm_gmult_4bit
|
||
.rva .LSEH_info_gcm_gmult_4bit
|
||
|
||
.rva .LSEH_begin_gcm_ghash_4bit
|
||
.rva .LSEH_end_gcm_ghash_4bit
|
||
.rva .LSEH_info_gcm_ghash_4bit
|
||
|
||
.rva .LSEH_begin_gcm_ghash_clmul
|
||
.rva .LSEH_end_gcm_ghash_clmul
|
||
.rva .LSEH_info_gcm_ghash_clmul
|
||
|
||
.section .xdata
|
||
.align 8
|
||
.LSEH_info_gcm_gmult_4bit:
|
||
.byte 9,0,0,0
|
||
.rva se_handler
|
||
.rva .Lgmult_prologue,.Lgmult_epilogue # HandlerData
|
||
.LSEH_info_gcm_ghash_4bit:
|
||
.byte 9,0,0,0
|
||
.rva se_handler
|
||
.rva .Lghash_prologue,.Lghash_epilogue # HandlerData
|
||
.LSEH_info_gcm_ghash_clmul:
|
||
.byte 0x01,0x1f,0x0b,0x00
|
||
.byte 0x1f,0xa8,0x04,0x00 #movaps 0x40(rsp),xmm10
|
||
.byte 0x19,0x98,0x03,0x00 #movaps 0x30(rsp),xmm9
|
||
.byte 0x13,0x88,0x02,0x00 #movaps 0x20(rsp),xmm8
|
||
.byte 0x0d,0x78,0x01,0x00 #movaps 0x10(rsp),xmm7
|
||
.byte 0x08,0x68,0x00,0x00 #movaps (rsp),xmm6
|
||
.byte 0x04,0xa2,0x00,0x00 #sub rsp,0x58
|
||
___
|
||
}
|
||
|
||
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
|
||
|
||
print $code;
|
||
|
||
close STDOUT;
|