crypto: x86/aes-xts - access round keys using single-byte offsets

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Access the AES round keys using offsets -7*16 through 7*16, instead of
0*16 through 14*16.  This allows VEX-encoded instructions to address all
round keys using 1-byte offsets, whereas before some needed 4-byte
offsets.  This decreases the code size of aes-xts-avx-x86_64.o by 4.2%.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Eric Biggers 2024-04-08 20:01:54 -04:00 • committed by Herbert Xu

parent 6a6d6a3a32

commit b924ecd305

1 changed files with 44 additions and 37 deletions

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arch/x86/crypto/aes-xts-avx-x86_64.S

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