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crypto: Add generic 64-bit carry-less multiply routine
Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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@ -8,6 +8,9 @@
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#ifndef CRYPTO_CLMUL_H
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#define CRYPTO_CLMUL_H
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#include "qemu/int128.h"
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#include "host/crypto/clmul.h"
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/**
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* clmul_8x8_low:
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*
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@ -61,4 +64,20 @@ uint64_t clmul_16x2_odd(uint64_t, uint64_t);
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*/
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uint64_t clmul_32(uint32_t, uint32_t);
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/**
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* clmul_64:
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*
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* Perform a 64x64->128 carry-less multiply.
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*/
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Int128 clmul_64_gen(uint64_t, uint64_t);
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static inline Int128 clmul_64(uint64_t a, uint64_t b)
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{
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if (HAVE_CLMUL_ACCEL) {
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return clmul_64_accel(a, b);
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} else {
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return clmul_64_gen(a, b);
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}
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}
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#endif /* CRYPTO_CLMUL_H */
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