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Fix big-endian issue in chacha20 SVE implementation on aarch64 

Fixes: #19902

Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20028)
This commit is contained in:
fangming.fang 2023-01-11 03:49:28 +00:00 committed by Tomas Mraz
parent c4edfa220e
commit cd7a8e96bb
1 changed files with 16 additions and 9 deletions
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25
crypto/chacha/asm/chacha-armv8-sve.pl
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@ -247,6 +247,9 @@ sub load_regs() {
my $next_offset = $offset + 1;
$code.=<<___;
ld1w {$reg.s},p0/z,[$inp,#$offset,MUL VL]
#ifdef __AARCH64EB__
revb $reg.s,p0/m,$reg.s
#endif
___
if (@_) {
&load_regs($next_offset, @_);
@ -268,6 +271,9 @@ sub store_regs() {
my $reg = shift;
my $next_offset = $offset + 1;
$code.=<<___;
#ifdef __AARCH64EB__
revb $reg.s,p0/m,$reg.s
#endif
st1w {$reg.s},p0,[$outp,#$offset,MUL VL]
___
if (@_) {
@ -472,14 +478,14 @@ ___
sub SVE_TRANSFORMS() {
$code.=<<___;
#ifdef __AARCH64EB__
rev @x[0],@x[0]
rev @x[2],@x[2]
rev @x[4],@x[4]
rev @x[6],@x[6]
rev @x[8],@x[8]
rev @x[10],@x[10]
rev @x[12],@x[12]
rev @x[14],@x[14]
rev @sxx[0],@sxx[0]
rev @sxx[2],@sxx[2]
rev @sxx[4],@sxx[4]
rev @sxx[6],@sxx[6]
rev @sxx[8],@sxx[8]
rev @sxx[10],@sxx[10]
rev @sxx[12],@sxx[12]
rev @sxx[14],@sxx[14]
#endif
.if mixin == 1
add @K[6],@K[6],#1
@ -858,7 +864,8 @@ my %opcode_pred = (
"ld1w" => 0xA540A000,
"ld1rw" => 0x8540C000,
"lasta" => 0x0520A000,
"revh" => 0x05258000);
"revh" => 0x05258000,
"revb" => 0x05248000);
my %tsize = (
'b' => 0,