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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-glue.c | |
| 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-glue.c')
| -rw-r--r-- | cipher/camellia-glue.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/cipher/camellia-glue.c b/cipher/camellia-glue.c index 7d8a4cdc..d6d60051 100644 --- a/cipher/camellia-glue.c +++ b/cipher/camellia-glue.c @@ -314,9 +314,6 @@ _gcry_camellia_ctr_enc(void *context, unsigned char *ctr, int avx2_burn_stack_depth = 32 * CAMELLIA_BLOCK_SIZE + 16 + 2 * sizeof(void *); - /* clear AVX registers */ - asm volatile ("vzeroall;\n":::); - if (burn_stack_depth < avx2_burn_stack_depth) burn_stack_depth = avx2_burn_stack_depth; } @@ -408,9 +405,6 @@ _gcry_camellia_cbc_dec(void *context, unsigned char *iv, int avx2_burn_stack_depth = 32 * CAMELLIA_BLOCK_SIZE + 16 + 2 * sizeof(void *); - /* clear AVX registers */ - asm volatile ("vzeroall;\n":::); - if (burn_stack_depth < avx2_burn_stack_depth) burn_stack_depth = avx2_burn_stack_depth; } @@ -496,9 +490,6 @@ _gcry_camellia_cfb_dec(void *context, unsigned char *iv, int avx2_burn_stack_depth = 32 * CAMELLIA_BLOCK_SIZE + 16 + 2 * sizeof(void *); - /* clear AVX registers */ - asm volatile ("vzeroall;\n":::); - if (burn_stack_depth < avx2_burn_stack_depth) burn_stack_depth = avx2_burn_stack_depth; } |