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crypto: aesni - make AVX AES-GCM work with all valid auth_tag_len

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Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Sabrina Dubroca 2017-04-28 18:11:59 +02:00 • committed by Herbert Xu
parent e10f9cb223
commit 0120af7795
1 changed files with 24 additions and 7 deletions
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31
arch/x86/crypto/aesni-intel_avx-x86_64.S
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@ -1481,19 +1481,36 @@ _return_T\@:
cmp $16, %r11 cmp $16, %r11
je _T_16\@ je _T_16\@
cmp $12, %r11 cmp $8, %r11
je _T_12\@ jl _T_4\@
_T_8\@: _T_8\@:
vmovq %xmm9, %rax vmovq %xmm9, %rax
mov %rax, (%r10) mov %rax, (%r10)
jmp _return_T_done\@ add $8, %r10
_T_12\@: sub $8, %r11
vmovq %xmm9, %rax
mov %rax, (%r10)
vpsrldq $8, %xmm9, %xmm9 vpsrldq $8, %xmm9, %xmm9
cmp $0, %r11
je _return_T_done\@
_T_4\@:
vmovd %xmm9, %eax vmovd %xmm9, %eax
mov %eax, 8(%r10) mov %eax, (%r10)
add $4, %r10
sub $4, %r11
vpsrldq $4, %xmm9, %xmm9
cmp $0, %r11
je _return_T_done\@
_T_123\@:
vmovd %xmm9, %eax
cmp $2, %r11
jl _T_1\@
mov %ax, (%r10)
cmp $2, %r11
je _return_T_done\@
add $2, %r10
sar $16, %eax
_T_1\@:
mov %al, (%r10)
jmp _return_T_done\@ jmp _return_T_done\@
_T_16\@: _T_16\@: