diff options
Diffstat (limited to 'cipher/asm-inline-s390x.h')
| -rw-r--r-- | cipher/asm-inline-s390x.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/cipher/asm-inline-s390x.h b/cipher/asm-inline-s390x.h index bacb45fe..001cb965 100644 --- a/cipher/asm-inline-s390x.h +++ b/cipher/asm-inline-s390x.h @@ -45,6 +45,14 @@ enum kmxx_functions_e KMID_FUNCTION_SHAKE128 = 36, KMID_FUNCTION_SHAKE256 = 37, KMID_FUNCTION_GHASH = 65, + + PCC_FUNCTION_NIST_P256 = 64, + PCC_FUNCTION_NIST_P384 = 65, + PCC_FUNCTION_NIST_P521 = 66, + PCC_FUNCTION_ED25519 = 72, + PCC_FUNCTION_ED448 = 73, + PCC_FUNCTION_X25519 = 80, + PCC_FUNCTION_X448 = 81 }; enum kmxx_function_flags_e @@ -108,6 +116,26 @@ static inline u128_t klmd_query(void) return function_codes; } +static inline u128_t pcc_query(void) +{ + static u128_t function_codes = 0; + static int initialized = 0; + register unsigned long reg0 asm("0") = 0; + register void *reg1 asm("1") = &function_codes; + + if (initialized) + return function_codes; + + asm volatile ("0: .insn rre,0xb92c << 16, 0, 0\n\t" + " brc 1,0b\n\t" + : + : [reg0] "r" (reg0), [reg1] "r" (reg1) + : "cc", "memory"); + + initialized = 1; + return function_codes; +} + static ALWAYS_INLINE void kimd_execute(unsigned int func, void *param_block, const void *src, size_t src_len) @@ -154,4 +182,24 @@ klmd_shake_execute(unsigned int func, void *param_block, void *dst, : "cc", "memory"); } +static ALWAYS_INLINE unsigned int +pcc_scalar_multiply(unsigned int func, void *param_block) +{ + register unsigned long reg0 asm("0") = func; + register byte *reg1 asm("1") = param_block; + register unsigned long error = 0; + + asm volatile ("0: .insn rre,0xb92c << 16, 0, 0\n\t" + " brc 1,0b\n\t" + " brc 7,1f\n\t" + " j 2f\n\t" + "1: lhi %[error], 1\n\t" + "2:\n\t" + : [func] "+r" (reg0), [error] "+r" (error) + : [param_ptr] "r" (reg1) + : "cc", "memory"); + + return error; +} + #endif /* GCRY_ASM_INLINE_S390X_H */ |