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
