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SubjectRe: [PATCH v3] crypto: x86/sm2 -add Zhaoxin SM2 algorithm implementation
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在 2023/11/22 22:26, Dave Hansen 写道:
>> +/* Zhaoxin sm2 verify function */
>> +static inline size_t zhaoxin_gmi_sm2_verify(unsigned char *key, unsigned char *hash,
>> + unsigned char *sig, unsigned char *scratch)
>> +{
>> + size_t result;
>> +
>> + asm volatile(
>> + ".byte 0xf2, 0x0f, 0xa6, 0xc0"
>> + :"=c"(result)
>> + :"a"(hash), "b"(key), "d"(SM2_CWORD_VERIFY), "S"(scratch), "D"(sig)
>> + :"memory");
>> +
>> + return result;
>> +}
>
> What version of binutils supports this new instruction?
>

The instruction has not yet been submitted to binutils. It will only be
used in the Zhaoxin-rng driver, and we are evaluating the necessity of
submitting it to binutils.

Yours sincerely,
Leoliu-oc

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