Commit Graph

2 Commits

Author SHA1 Message Date
Ondrej Mosnacek
877ccce7cb crypto: x86/aegis,morus - Fix and simplify CPUID checks
It turns out I had misunderstood how the x86_match_cpu() function works.
It evaluates a logical OR of the matching conditions, not logical AND.
This caused the CPU feature checks for AEGIS to pass even if only SSE2
(but not AES-NI) was supported (or vice versa), leading to potential
crashes if something tried to use the registered algs.

This patch switches the checks to a simpler method that is used e.g. in
the Camellia x86 code.

The patch also removes the MODULE_DEVICE_TABLE declarations which
actually seem to cause the modules to be auto-loaded at boot, which is
not desired. The crypto API on-demand module loading is sufficient.

Fixes: 1d373d4e8e ("crypto: x86 - Add optimized AEGIS implementations")
Fixes: 6ecc9d9ff9 ("crypto: x86 - Add optimized MORUS implementations")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Tested-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-08-07 17:51:15 +08:00
Ondrej Mosnacek
6ecc9d9ff9 crypto: x86 - Add optimized MORUS implementations
This patch adds optimized implementations of MORUS-640 and MORUS-1280,
utilizing the SSE2 and AVX2 x86 extensions.

For MORUS-1280 (which operates on 256-bit blocks) we provide both AVX2
and SSE2 implementation. Although SSE2 MORUS-1280 is slower than AVX2
MORUS-1280, it is comparable in speed to the SSE2 MORUS-640.

Signed-off-by: Ondrej Mosnacek <omosnacek@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-05-19 00:15:35 +08:00