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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-09-01 16:50:55 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-09-01 16:50:55 +0300 |
| commit | f3515240de9513ead975985c9f8ab714022cac8e (patch) | |
| tree | 7bae3811a618055de5ab9ab89e6f69145a75aade /cipher/camellia-aesni-avx2-amd64.S | |
| parent | 8b735cb563dff7aafbf8a970972522b5621e665c (diff) | |
| download | libgcrypt-f3515240de9513ead975985c9f8ab714022cac8e.tar.gz | |
camellia-aesni-avx2-amd64: Move register clearing to assembly functions
* cipher/camellia-aesni-avx2-amd64.S
(_gcry_camellia_aesni_avx2_ctr_enc): Add 'vzeroall'.
(_gcry_camellia_aesni_avx2_cbc_dec)
(_gcry_camellia_aesni_avx2_cfb_dec): Add 'vzeroupper' at head and
'vzeroall' at tail.
* cipher/camellia-glue.c (_gcry_serpent_ctr_enc, _gcry_serpent_cbc_dec)
(_gcry_serpent_avx2_cfb_dec) [USE_AESNI_AVX2]: Remove register
clearing.
--
Patch moves register clearing with 'vzeroall' to assembly functions and
adds missing 'vzeroupper' instructions at head of assembly functions.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'cipher/camellia-aesni-avx2-amd64.S')
| -rw-r--r-- | cipher/camellia-aesni-avx2-amd64.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/cipher/camellia-aesni-avx2-amd64.S b/cipher/camellia-aesni-avx2-amd64.S index da427b47..7e31323b 100644 --- a/cipher/camellia-aesni-avx2-amd64.S +++ b/cipher/camellia-aesni-avx2-amd64.S @@ -1104,6 +1104,8 @@ _gcry_camellia_aesni_avx2_ctr_enc: %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9, %ymm8, %rsi); + vzeroall; + ret; .size _gcry_camellia_aesni_avx2_ctr_enc,.-_gcry_camellia_aesni_avx2_ctr_enc; @@ -1119,6 +1121,8 @@ _gcry_camellia_aesni_avx2_cbc_dec: * %rcx: iv */ + vzeroupper; + movq %rcx, %r9; cmpl $128, key_bitlength(CTX); @@ -1171,6 +1175,8 @@ _gcry_camellia_aesni_avx2_cbc_dec: movq %rax, (0)(%r9); movq %rcx, (8)(%r9); + vzeroall; + ret; .size _gcry_camellia_aesni_avx2_cbc_dec,.-_gcry_camellia_aesni_avx2_cbc_dec; @@ -1186,6 +1192,8 @@ _gcry_camellia_aesni_avx2_cfb_dec: * %rcx: iv */ + vzeroupper; + movq %rsp, %r10; subq $(16 * 32), %rsp; andq $~31, %rsp; @@ -1240,6 +1248,8 @@ _gcry_camellia_aesni_avx2_cfb_dec: %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9, %ymm8, %rsi); + vzeroall; + ret; .size _gcry_camellia_aesni_avx2_cfb_dec,.-_gcry_camellia_aesni_avx2_cfb_dec; |