Messages in this thread | | | Date | Wed, 29 Nov 2023 15:24:23 +0800 | Subject | Re: [PATCH v3] crypto: x86/sm2 -add Zhaoxin SM2 algorithm implementation | From | LeoLiu-oc <> |
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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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