^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * CP Assist for Cryptographic Functions (CPACF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright IBM Corp. 2003, 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Author(s): Thomas Spatzier
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Jan Glauber
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Harald Freudenberger (freude@de.ibm.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Martin Schwidefsky <schwidefsky@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #ifndef _ASM_S390_CPACF_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define _ASM_S390_CPACF_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/facility.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * Instruction opcodes for the CPACF instructions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define CPACF_KMAC 0xb91e /* MSA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define CPACF_KM 0xb92e /* MSA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define CPACF_KMC 0xb92f /* MSA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define CPACF_KIMD 0xb93e /* MSA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define CPACF_KLMD 0xb93f /* MSA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define CPACF_PCKMO 0xb928 /* MSA3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define CPACF_KMF 0xb92a /* MSA4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define CPACF_KMO 0xb92b /* MSA4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define CPACF_PCC 0xb92c /* MSA4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define CPACF_KMCTR 0xb92d /* MSA4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define CPACF_PRNO 0xb93c /* MSA5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define CPACF_KMA 0xb929 /* MSA8 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define CPACF_KDSA 0xb93a /* MSA9 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * En/decryption modifier bits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define CPACF_ENCRYPT 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define CPACF_DECRYPT 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * Function codes for the KM (CIPHER MESSAGE) instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define CPACF_KM_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define CPACF_KM_DEA 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define CPACF_KM_TDEA_128 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define CPACF_KM_TDEA_192 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define CPACF_KM_AES_128 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define CPACF_KM_AES_192 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define CPACF_KM_AES_256 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define CPACF_KM_PAES_128 0x1a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define CPACF_KM_PAES_192 0x1b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define CPACF_KM_PAES_256 0x1c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define CPACF_KM_XTS_128 0x32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define CPACF_KM_XTS_256 0x34
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define CPACF_KM_PXTS_128 0x3a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define CPACF_KM_PXTS_256 0x3c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define CPACF_KMC_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define CPACF_KMC_DEA 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define CPACF_KMC_TDEA_128 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define CPACF_KMC_TDEA_192 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define CPACF_KMC_AES_128 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define CPACF_KMC_AES_192 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define CPACF_KMC_AES_256 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define CPACF_KMC_PAES_128 0x1a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define CPACF_KMC_PAES_192 0x1b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define CPACF_KMC_PAES_256 0x1c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define CPACF_KMC_PRNG 0x43
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #define CPACF_KMCTR_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #define CPACF_KMCTR_DEA 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define CPACF_KMCTR_TDEA_128 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #define CPACF_KMCTR_TDEA_192 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #define CPACF_KMCTR_AES_128 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define CPACF_KMCTR_AES_192 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define CPACF_KMCTR_AES_256 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define CPACF_KMCTR_PAES_128 0x1a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #define CPACF_KMCTR_PAES_192 0x1b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define CPACF_KMCTR_PAES_256 0x1c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #define CPACF_KIMD_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) #define CPACF_KIMD_SHA_1 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define CPACF_KIMD_SHA_256 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define CPACF_KIMD_SHA_512 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define CPACF_KIMD_SHA3_224 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define CPACF_KIMD_SHA3_256 0x21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define CPACF_KIMD_SHA3_384 0x22
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #define CPACF_KIMD_SHA3_512 0x23
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #define CPACF_KIMD_GHASH 0x41
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define CPACF_KLMD_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define CPACF_KLMD_SHA_1 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define CPACF_KLMD_SHA_256 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define CPACF_KLMD_SHA_512 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define CPACF_KLMD_SHA3_224 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define CPACF_KLMD_SHA3_256 0x21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define CPACF_KLMD_SHA3_384 0x22
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define CPACF_KLMD_SHA3_512 0x23
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define CPACF_KMAC_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define CPACF_KMAC_DEA 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #define CPACF_KMAC_TDEA_128 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define CPACF_KMAC_TDEA_192 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) #define CPACF_PCKMO_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #define CPACF_PCKMO_ENC_DES_KEY 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) #define CPACF_PCKMO_ENC_AES_128_KEY 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) #define CPACF_PCKMO_ENC_AES_192_KEY 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) #define CPACF_PCKMO_ENC_AES_256_KEY 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) #define CPACF_PRNO_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #define CPACF_PRNO_SHA512_DRNG_GEN 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #define CPACF_PRNO_SHA512_DRNG_SEED 0x83
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #define CPACF_PRNO_TRNG 0x72
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define CPACF_KMA_QUERY 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define CPACF_KMA_GCM_AES_128 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define CPACF_KMA_GCM_AES_192 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define CPACF_KMA_GCM_AES_256 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) #define CPACF_KMA_LAAD 0x200 /* Last-AAD */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) typedef struct { unsigned char bytes[16]; } cpacf_mask_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) * cpacf_query() - check if a specific CPACF function is available
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) * @opcode: the opcode of the crypto instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) * @func: the function code to test for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * Executes the query function for the given crypto instruction @opcode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * and checks if @func is available
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * Returns 1 if @func is available for @opcode, 0 otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) static __always_inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) register unsigned long r0 asm("0") = 0; /* query function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) register unsigned long r1 asm("1") = (unsigned long) mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) " spm 0\n" /* pckmo doesn't change the cc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /* Parameter regs are ignored, but must be nonzero and unique */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) "0: .insn rrf,%[opc] << 16,2,4,6,0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) : "=m" (*mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) : "cc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static __always_inline int __cpacf_check_opcode(unsigned int opcode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) switch (opcode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) case CPACF_KMAC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) case CPACF_KM:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) case CPACF_KMC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) case CPACF_KIMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) case CPACF_KLMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return test_facility(17); /* check for MSA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) case CPACF_PCKMO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return test_facility(76); /* check for MSA3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) case CPACF_KMF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) case CPACF_KMO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) case CPACF_PCC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) case CPACF_KMCTR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return test_facility(77); /* check for MSA4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) case CPACF_PRNO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return test_facility(57); /* check for MSA5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) case CPACF_KMA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return test_facility(146); /* check for MSA8 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (__cpacf_check_opcode(opcode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) __cpacf_query(opcode, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) memset(mask, 0, sizeof(*mask));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) cpacf_mask_t mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (cpacf_query(opcode, &mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) return cpacf_test_func(&mask, func);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) * @func: the function code passed to KM; see CPACF_KM_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) * @dest: address of destination memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) * @src: address of source memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) * @src_len: length of src operand in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) * Returns 0 for the query func, number of processed bytes for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) * encryption/decryption funcs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) static inline int cpacf_km(unsigned long func, void *param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) u8 *dest, const u8 *src, long src_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) register unsigned long r2 asm("2") = (unsigned long) src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) register unsigned long r3 asm("3") = (unsigned long) src_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) register unsigned long r4 asm("4") = (unsigned long) dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) "0: .insn rre,%[opc] << 16,%[dst],%[src]\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) return src_len - r3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) * @func: the function code passed to KM; see CPACF_KMC_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * @dest: address of destination memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * @src: address of source memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * @src_len: length of src operand in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * Returns 0 for the query func, number of processed bytes for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) * encryption/decryption funcs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) static inline int cpacf_kmc(unsigned long func, void *param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) u8 *dest, const u8 *src, long src_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) register unsigned long r2 asm("2") = (unsigned long) src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) register unsigned long r3 asm("3") = (unsigned long) src_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) register unsigned long r4 asm("4") = (unsigned long) dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) "0: .insn rre,%[opc] << 16,%[dst],%[src]\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) return src_len - r3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * @func: the function code passed to KM; see CPACF_KIMD_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * @src: address of source memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * @src_len: length of src operand in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) static inline void cpacf_kimd(unsigned long func, void *param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) const u8 *src, long src_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) register unsigned long r2 asm("2") = (unsigned long) src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) register unsigned long r3 asm("3") = (unsigned long) src_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) "0: .insn rre,%[opc] << 16,0,%[src]\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) : [src] "+a" (r2), [len] "+d" (r3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * @func: the function code passed to KM; see CPACF_KLMD_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * @src: address of source memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * @src_len: length of src operand in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) static inline void cpacf_klmd(unsigned long func, void *param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) const u8 *src, long src_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) register unsigned long r2 asm("2") = (unsigned long) src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) register unsigned long r3 asm("3") = (unsigned long) src_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) "0: .insn rre,%[opc] << 16,0,%[src]\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) : [src] "+a" (r2), [len] "+d" (r3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) * @func: the function code passed to KM; see CPACF_KMAC_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * @src: address of source memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) * @src_len: length of src operand in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) * Returns 0 for the query func, number of processed bytes for digest funcs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) static inline int cpacf_kmac(unsigned long func, void *param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) const u8 *src, long src_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) register unsigned long r2 asm("2") = (unsigned long) src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) register unsigned long r3 asm("3") = (unsigned long) src_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) "0: .insn rre,%[opc] << 16,0,%[src]\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) : [src] "+a" (r2), [len] "+d" (r3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) return src_len - r3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * @dest: address of destination memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) * @src: address of source memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) * @src_len: length of src operand in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) * @counter: address of counter value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) * Returns 0 for the query func, number of processed bytes for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) * encryption/decryption funcs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) const u8 *src, long src_len, u8 *counter)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) register unsigned long r2 asm("2") = (unsigned long) src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) register unsigned long r3 asm("3") = (unsigned long) src_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) register unsigned long r4 asm("4") = (unsigned long) dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) register unsigned long r6 asm("6") = (unsigned long) counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) : [src] "+a" (r2), [len] "+d" (r3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) [dst] "+a" (r4), [ctr] "+a" (r6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) return src_len - r3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) * @dest: address of destination memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) * @dest_len: size of destination memory area in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) * @seed: address of seed data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) * @seed_len: size of seed data in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) static inline void cpacf_prno(unsigned long func, void *param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) u8 *dest, unsigned long dest_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) const u8 *seed, unsigned long seed_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) register unsigned long r2 asm("2") = (unsigned long) dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) register unsigned long r3 asm("3") = (unsigned long) dest_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) register unsigned long r4 asm("4") = (unsigned long) seed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) register unsigned long r5 asm("5") = (unsigned long) seed_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) asm volatile (
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) : [dst] "+a" (r2), [dlen] "+d" (r3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) : [fc] "d" (r0), [pba] "a" (r1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PRNO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) * @ucbuf: buffer for unconditioned data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) * @ucbuf_len: amount of unconditioned data to fetch in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) * @cbuf: buffer for conditioned data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) * @cbuf_len: amount of conditioned data to fetch in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) u8 *cbuf, unsigned long cbuf_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) register unsigned long r0 asm("0") = (unsigned long) CPACF_PRNO_TRNG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) register unsigned long r2 asm("2") = (unsigned long) ucbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) register unsigned long r3 asm("3") = (unsigned long) ucbuf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) register unsigned long r4 asm("4") = (unsigned long) cbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) register unsigned long r5 asm("5") = (unsigned long) cbuf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) asm volatile (
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) : [ucbuf] "+a" (r2), [ucbuflen] "+d" (r3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) [cbuf] "+a" (r4), [cbuflen] "+d" (r5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) : [fc] "d" (r0), [opc] "i" (CPACF_PRNO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) * @func: the function code passed to PCC; see CPACF_KM_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) static inline void cpacf_pcc(unsigned long func, void *param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) * MANAGEMENT) instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) * Returns 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) static inline void cpacf_pckmo(long func, void *param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) * instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) * @func: the function code passed to KMA; see CPACF_KMA_xxx defines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) * @param: address of parameter block; see POP for details on each func
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) * @dest: address of destination memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) * @src: address of source memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) * @src_len: length of src operand in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) * @aad: address of additional authenticated data memory area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) * @aad_len: length of aad operand in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) static inline void cpacf_kma(unsigned long func, void *param, u8 *dest,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) const u8 *src, unsigned long src_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) const u8 *aad, unsigned long aad_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) register unsigned long r0 asm("0") = (unsigned long) func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) register unsigned long r1 asm("1") = (unsigned long) param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) register unsigned long r2 asm("2") = (unsigned long) src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) register unsigned long r3 asm("3") = (unsigned long) src_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) register unsigned long r4 asm("4") = (unsigned long) aad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) register unsigned long r5 asm("5") = (unsigned long) aad_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) register unsigned long r6 asm("6") = (unsigned long) dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) " brc 1,0b\n" /* handle partial completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) : [dst] "+a" (r6), [src] "+a" (r2), [slen] "+d" (r3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) [aad] "+a" (r4), [alen] "+d" (r5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) : "cc", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) #endif /* _ASM_S390_CPACF_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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