1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2c7d4d259SMartin Schwidefsky /* 3c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 4c7d4d259SMartin Schwidefsky * 5*9e436c19SHarald Freudenberger * Copyright IBM Corp. 2003, 2023 6c7d4d259SMartin Schwidefsky * Author(s): Thomas Spatzier 7c7d4d259SMartin Schwidefsky * Jan Glauber 8c7d4d259SMartin Schwidefsky * Harald Freudenberger (freude@de.ibm.com) 9c7d4d259SMartin Schwidefsky * Martin Schwidefsky <schwidefsky@de.ibm.com> 10c7d4d259SMartin Schwidefsky */ 11c7d4d259SMartin Schwidefsky #ifndef _ASM_S390_CPACF_H 12c7d4d259SMartin Schwidefsky #define _ASM_S390_CPACF_H 13c7d4d259SMartin Schwidefsky 14c7d4d259SMartin Schwidefsky #include <asm/facility.h> 15c7d4d259SMartin Schwidefsky 16c7d4d259SMartin Schwidefsky /* 17c7d4d259SMartin Schwidefsky * Instruction opcodes for the CPACF instructions 18c7d4d259SMartin Schwidefsky */ 19c7d4d259SMartin Schwidefsky #define CPACF_KMAC 0xb91e /* MSA */ 20c7d4d259SMartin Schwidefsky #define CPACF_KM 0xb92e /* MSA */ 21c7d4d259SMartin Schwidefsky #define CPACF_KMC 0xb92f /* MSA */ 22c7d4d259SMartin Schwidefsky #define CPACF_KIMD 0xb93e /* MSA */ 23c7d4d259SMartin Schwidefsky #define CPACF_KLMD 0xb93f /* MSA */ 241afd43e0SDavid Hildenbrand #define CPACF_PCKMO 0xb928 /* MSA3 */ 251afd43e0SDavid Hildenbrand #define CPACF_KMF 0xb92a /* MSA4 */ 261afd43e0SDavid Hildenbrand #define CPACF_KMO 0xb92b /* MSA4 */ 27c7d4d259SMartin Schwidefsky #define CPACF_PCC 0xb92c /* MSA4 */ 28c7d4d259SMartin Schwidefsky #define CPACF_KMCTR 0xb92d /* MSA4 */ 29985a9d20SHarald Freudenberger #define CPACF_PRNO 0xb93c /* MSA5 */ 30152c1c8dSJason J. Herne #define CPACF_KMA 0xb929 /* MSA8 */ 3113209ad0SChristian Borntraeger #define CPACF_KDSA 0xb93a /* MSA9 */ 32c7d4d259SMartin Schwidefsky 33c7d4d259SMartin Schwidefsky /* 3427937843SMartin Schwidefsky * En/decryption modifier bits 35edc63a37SMartin Schwidefsky */ 3627937843SMartin Schwidefsky #define CPACF_ENCRYPT 0x00 37edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 38edc63a37SMartin Schwidefsky 39edc63a37SMartin Schwidefsky /* 40edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 41c7d4d259SMartin Schwidefsky */ 42c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 43edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 44edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 45edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 46edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 47edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 48edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 4927937843SMartin Schwidefsky #define CPACF_KM_PAES_128 0x1a 5027937843SMartin Schwidefsky #define CPACF_KM_PAES_192 0x1b 5127937843SMartin Schwidefsky #define CPACF_KM_PAES_256 0x1c 52edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 53edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 5427937843SMartin Schwidefsky #define CPACF_KM_PXTS_128 0x3a 5527937843SMartin Schwidefsky #define CPACF_KM_PXTS_256 0x3c 56c7d4d259SMartin Schwidefsky 57c7d4d259SMartin Schwidefsky /* 58c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 59edc63a37SMartin Schwidefsky * instruction 60c7d4d259SMartin Schwidefsky */ 61c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 62edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 63edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 64edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 65edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 66edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 67edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 6827937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 6927937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 7027937843SMartin Schwidefsky #define CPACF_KMC_PAES_256 0x1c 71c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 72c7d4d259SMartin Schwidefsky 73c7d4d259SMartin Schwidefsky /* 74c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 75edc63a37SMartin Schwidefsky * instruction 76c7d4d259SMartin Schwidefsky */ 77c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 78edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 79edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 80edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 81edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 82edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 83edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 8427937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 8527937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 8627937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_256 0x1c 87c7d4d259SMartin Schwidefsky 88c7d4d259SMartin Schwidefsky /* 89c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 90edc63a37SMartin Schwidefsky * instruction 91c7d4d259SMartin Schwidefsky */ 92c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 93c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 94c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 95c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 963c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_224 0x20 973c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_256 0x21 983c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_384 0x22 993c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_512 0x23 100c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 101c7d4d259SMartin Schwidefsky 102c7d4d259SMartin Schwidefsky /* 103c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 104edc63a37SMartin Schwidefsky * instruction 105c7d4d259SMartin Schwidefsky */ 106c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 107c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 108c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 109c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 1103c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_224 0x20 1113c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_256 0x21 1123c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_384 0x22 1133c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_512 0x23 114c7d4d259SMartin Schwidefsky 115c7d4d259SMartin Schwidefsky /* 116c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 117edc63a37SMartin Schwidefsky * instruction 118c7d4d259SMartin Schwidefsky */ 119c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 120c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 121c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 122c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 123c7d4d259SMartin Schwidefsky 124c7d4d259SMartin Schwidefsky /* 12577606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 12677606708SHarald Freudenberger * instruction 12777606708SHarald Freudenberger */ 12877606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 12977606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 13077606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 13177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 13277606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 13377606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 13477606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 135*9e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P256_KEY 0x20 136*9e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P384_KEY 0x21 137*9e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P521_KEY 0x22 138*9e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_ED25519_KEY 0x28 139*9e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_ED448_KEY 0x29 14077606708SHarald Freudenberger 14177606708SHarald Freudenberger /* 142985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 143edc63a37SMartin Schwidefsky * instruction 144c7d4d259SMartin Schwidefsky */ 145985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 146985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 147985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 148f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 149f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 150c7d4d259SMartin Schwidefsky 151eecd49c4SPatrick Steuer /* 152eecd49c4SPatrick Steuer * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 153eecd49c4SPatrick Steuer * instruction 154eecd49c4SPatrick Steuer */ 155eecd49c4SPatrick Steuer #define CPACF_KMA_QUERY 0x00 156eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_128 0x12 157eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_192 0x13 158eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_256 0x14 159eecd49c4SPatrick Steuer 160eecd49c4SPatrick Steuer /* 161eecd49c4SPatrick Steuer * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction 162eecd49c4SPatrick Steuer */ 163eecd49c4SPatrick Steuer #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */ 164eecd49c4SPatrick Steuer #define CPACF_KMA_LAAD 0x200 /* Last-AAD */ 165eecd49c4SPatrick Steuer #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */ 166eecd49c4SPatrick Steuer 16769c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 16869c0e360SMartin Schwidefsky 169c7d4d259SMartin Schwidefsky /** 170c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 171c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 172c7d4d259SMartin Schwidefsky * @func: the function code to test for 173c7d4d259SMartin Schwidefsky * 174c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 175c7d4d259SMartin Schwidefsky * and checks if @func is available 176c7d4d259SMartin Schwidefsky * 177c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 178c7d4d259SMartin Schwidefsky */ 1795c8e10f8SJiri Kosina static __always_inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 180c7d4d259SMartin Schwidefsky { 181c7d4d259SMartin Schwidefsky asm volatile( 182b84d0c41SHeiko Carstens " lghi 0,0\n" /* query function */ 183b84d0c41SHeiko Carstens " lgr 1,%[mask]\n" 1841afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 185b112a2dfSJason J. Herne /* Parameter regs are ignored, but must be nonzero and unique */ 186b112a2dfSJason J. Herne "0: .insn rrf,%[opc] << 16,2,4,6,0\n" 187c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 18869c0e360SMartin Schwidefsky : "=m" (*mask) 189b84d0c41SHeiko Carstens : [mask] "d" ((unsigned long)mask), [opc] "i" (opcode) 190b84d0c41SHeiko Carstens : "cc", "0", "1"); 191c7d4d259SMartin Schwidefsky } 192c7d4d259SMartin Schwidefsky 193d83623c5SMasahiro Yamada static __always_inline int __cpacf_check_opcode(unsigned int opcode) 194c7d4d259SMartin Schwidefsky { 195c7d4d259SMartin Schwidefsky switch (opcode) { 196c7d4d259SMartin Schwidefsky case CPACF_KMAC: 197c7d4d259SMartin Schwidefsky case CPACF_KM: 198c7d4d259SMartin Schwidefsky case CPACF_KMC: 199c7d4d259SMartin Schwidefsky case CPACF_KIMD: 200c7d4d259SMartin Schwidefsky case CPACF_KLMD: 20169c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 2021afd43e0SDavid Hildenbrand case CPACF_PCKMO: 20369c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 2041afd43e0SDavid Hildenbrand case CPACF_KMF: 2051afd43e0SDavid Hildenbrand case CPACF_KMO: 206c7d4d259SMartin Schwidefsky case CPACF_PCC: 207c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 20869c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 209985a9d20SHarald Freudenberger case CPACF_PRNO: 21069c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 211eecd49c4SPatrick Steuer case CPACF_KMA: 212eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 213c7d4d259SMartin Schwidefsky default: 214c7d4d259SMartin Schwidefsky BUG(); 215c7d4d259SMartin Schwidefsky } 21669c0e360SMartin Schwidefsky } 21769c0e360SMartin Schwidefsky 218e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 21969c0e360SMartin Schwidefsky { 22069c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 22169c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 22269c0e360SMartin Schwidefsky return 1; 22369c0e360SMartin Schwidefsky } 22469c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 22569c0e360SMartin Schwidefsky return 0; 22669c0e360SMartin Schwidefsky } 22769c0e360SMartin Schwidefsky 22869c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 22969c0e360SMartin Schwidefsky { 23069c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 23169c0e360SMartin Schwidefsky } 23269c0e360SMartin Schwidefsky 233d83623c5SMasahiro Yamada static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func) 23469c0e360SMartin Schwidefsky { 23569c0e360SMartin Schwidefsky cpacf_mask_t mask; 23669c0e360SMartin Schwidefsky 23769c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 23869c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 23969c0e360SMartin Schwidefsky return 0; 240c7d4d259SMartin Schwidefsky } 241c7d4d259SMartin Schwidefsky 242c7d4d259SMartin Schwidefsky /** 243c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 244c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 245c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 246c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 247c7d4d259SMartin Schwidefsky * @src: address of source memory area 248c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 249c7d4d259SMartin Schwidefsky * 250c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 251c7d4d259SMartin Schwidefsky * encryption/decryption funcs 252c7d4d259SMartin Schwidefsky */ 253edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 254c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 255c7d4d259SMartin Schwidefsky { 256b84d0c41SHeiko Carstens union register_pair d, s; 257c7d4d259SMartin Schwidefsky 258b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 259b84d0c41SHeiko Carstens s.even = (unsigned long)src; 260b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 261c7d4d259SMartin Schwidefsky asm volatile( 262b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 263b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 264c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 265c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 266b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 267b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 268b84d0c41SHeiko Carstens [opc] "i" (CPACF_KM) 269b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 270c7d4d259SMartin Schwidefsky 271b84d0c41SHeiko Carstens return src_len - s.odd; 272c7d4d259SMartin Schwidefsky } 273c7d4d259SMartin Schwidefsky 274c7d4d259SMartin Schwidefsky /** 275c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 276c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 277c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 278c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 279c7d4d259SMartin Schwidefsky * @src: address of source memory area 280c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 281c7d4d259SMartin Schwidefsky * 282c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 283c7d4d259SMartin Schwidefsky * encryption/decryption funcs 284c7d4d259SMartin Schwidefsky */ 285edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 286c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 287c7d4d259SMartin Schwidefsky { 288b84d0c41SHeiko Carstens union register_pair d, s; 289c7d4d259SMartin Schwidefsky 290b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 291b84d0c41SHeiko Carstens s.even = (unsigned long)src; 292b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 293c7d4d259SMartin Schwidefsky asm volatile( 294b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 295b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 296c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 297c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 298b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 299b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 300b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMC) 301b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 302c7d4d259SMartin Schwidefsky 303b84d0c41SHeiko Carstens return src_len - s.odd; 304c7d4d259SMartin Schwidefsky } 305c7d4d259SMartin Schwidefsky 306c7d4d259SMartin Schwidefsky /** 307c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 308c7d4d259SMartin Schwidefsky * instruction 309c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 310c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 311c7d4d259SMartin Schwidefsky * @src: address of source memory area 312c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 313c7d4d259SMartin Schwidefsky */ 3140177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 315c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 316c7d4d259SMartin Schwidefsky { 317b84d0c41SHeiko Carstens union register_pair s; 318c7d4d259SMartin Schwidefsky 319b84d0c41SHeiko Carstens s.even = (unsigned long)src; 320b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 321c7d4d259SMartin Schwidefsky asm volatile( 322b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 323b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 324c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 325c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 326b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 327b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)(param)), 328b84d0c41SHeiko Carstens [opc] "i" (CPACF_KIMD) 329b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 330c7d4d259SMartin Schwidefsky } 331c7d4d259SMartin Schwidefsky 332c7d4d259SMartin Schwidefsky /** 333c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 334c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 335c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 336c7d4d259SMartin Schwidefsky * @src: address of source memory area 337c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 338c7d4d259SMartin Schwidefsky */ 3390177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 340c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 341c7d4d259SMartin Schwidefsky { 342b84d0c41SHeiko Carstens union register_pair s; 343c7d4d259SMartin Schwidefsky 344b84d0c41SHeiko Carstens s.even = (unsigned long)src; 345b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 346c7d4d259SMartin Schwidefsky asm volatile( 347b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 348b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 349c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 350c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 351b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 352b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 353b84d0c41SHeiko Carstens [opc] "i" (CPACF_KLMD) 354b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 355c7d4d259SMartin Schwidefsky } 356c7d4d259SMartin Schwidefsky 357c7d4d259SMartin Schwidefsky /** 358c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 359c7d4d259SMartin Schwidefsky * instruction 360c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 361c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 362c7d4d259SMartin Schwidefsky * @src: address of source memory area 363c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 364c7d4d259SMartin Schwidefsky * 365c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 366c7d4d259SMartin Schwidefsky */ 367edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 368c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 369c7d4d259SMartin Schwidefsky { 370b84d0c41SHeiko Carstens union register_pair s; 371c7d4d259SMartin Schwidefsky 372b84d0c41SHeiko Carstens s.even = (unsigned long)src; 373b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 374c7d4d259SMartin Schwidefsky asm volatile( 375b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 376b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 377c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 378c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 379b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 380b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 381b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMAC) 382b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 383c7d4d259SMartin Schwidefsky 384b84d0c41SHeiko Carstens return src_len - s.odd; 385c7d4d259SMartin Schwidefsky } 386c7d4d259SMartin Schwidefsky 387c7d4d259SMartin Schwidefsky /** 388c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 389c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 390c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 391c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 392c7d4d259SMartin Schwidefsky * @src: address of source memory area 393c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 394c7d4d259SMartin Schwidefsky * @counter: address of counter value 395c7d4d259SMartin Schwidefsky * 396c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 397c7d4d259SMartin Schwidefsky * encryption/decryption funcs 398c7d4d259SMartin Schwidefsky */ 399edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 400c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 401c7d4d259SMartin Schwidefsky { 402b84d0c41SHeiko Carstens union register_pair d, s, c; 403c7d4d259SMartin Schwidefsky 404b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 405b84d0c41SHeiko Carstens s.even = (unsigned long)src; 406b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 407b84d0c41SHeiko Carstens c.even = (unsigned long)counter; 408c7d4d259SMartin Schwidefsky asm volatile( 409b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 410b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 411c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 412c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 413b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair), 414b84d0c41SHeiko Carstens [ctr] "+&d" (c.pair) 415b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 416b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMCTR) 417b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 418c7d4d259SMartin Schwidefsky 419b84d0c41SHeiko Carstens return src_len - s.odd; 420c7d4d259SMartin Schwidefsky } 421c7d4d259SMartin Schwidefsky 422c7d4d259SMartin Schwidefsky /** 423985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 424c7d4d259SMartin Schwidefsky * instruction 425985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 426c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 427c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 428c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 429c7d4d259SMartin Schwidefsky * @seed: address of seed data 430c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 431c7d4d259SMartin Schwidefsky */ 432985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 433f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 434f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 435c7d4d259SMartin Schwidefsky { 436b84d0c41SHeiko Carstens union register_pair d, s; 437c7d4d259SMartin Schwidefsky 438b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 439b84d0c41SHeiko Carstens d.odd = (unsigned long)dest_len; 440b84d0c41SHeiko Carstens s.even = (unsigned long)seed; 441b84d0c41SHeiko Carstens s.odd = (unsigned long)seed_len; 442c7d4d259SMartin Schwidefsky asm volatile ( 443b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 444b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 445c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 446c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 447b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair) 448b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 449b84d0c41SHeiko Carstens [seed] "d" (s.pair), [opc] "i" (CPACF_PRNO) 450b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 451c7d4d259SMartin Schwidefsky } 452c7d4d259SMartin Schwidefsky 453c7d4d259SMartin Schwidefsky /** 454f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 455f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 456f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 457f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 458f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 459f75fa65dSHarald Freudenberger */ 460f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 461f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 462f75fa65dSHarald Freudenberger { 463b84d0c41SHeiko Carstens union register_pair u, c; 464f75fa65dSHarald Freudenberger 465b84d0c41SHeiko Carstens u.even = (unsigned long)ucbuf; 466b84d0c41SHeiko Carstens u.odd = (unsigned long)ucbuf_len; 467b84d0c41SHeiko Carstens c.even = (unsigned long)cbuf; 468b84d0c41SHeiko Carstens c.odd = (unsigned long)cbuf_len; 469f75fa65dSHarald Freudenberger asm volatile ( 470b84d0c41SHeiko Carstens " lghi 0,%[fc]\n" 471f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 472f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 473b84d0c41SHeiko Carstens : [ucbuf] "+&d" (u.pair), [cbuf] "+&d" (c.pair) 474b84d0c41SHeiko Carstens : [fc] "K" (CPACF_PRNO_TRNG), [opc] "i" (CPACF_PRNO) 475b84d0c41SHeiko Carstens : "cc", "memory", "0"); 476f75fa65dSHarald Freudenberger } 477f75fa65dSHarald Freudenberger 478f75fa65dSHarald Freudenberger /** 479c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 480c7d4d259SMartin Schwidefsky * instruction 481c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 482c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 483c7d4d259SMartin Schwidefsky */ 4840177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 485c7d4d259SMartin Schwidefsky { 486c7d4d259SMartin Schwidefsky asm volatile( 487b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 488b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 489c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 490c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 491c7d4d259SMartin Schwidefsky : 492b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 493b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCC) 494b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 495c7d4d259SMartin Schwidefsky } 496c7d4d259SMartin Schwidefsky 49777606708SHarald Freudenberger /** 49877606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 49977606708SHarald Freudenberger * MANAGEMENT) instruction 50077606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 50177606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 50277606708SHarald Freudenberger * 50377606708SHarald Freudenberger * Returns 0. 50477606708SHarald Freudenberger */ 50577606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 50677606708SHarald Freudenberger { 50777606708SHarald Freudenberger asm volatile( 508b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 509b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 51077606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 51177606708SHarald Freudenberger : 512b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 513b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCKMO) 514b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 51577606708SHarald Freudenberger } 51677606708SHarald Freudenberger 517eecd49c4SPatrick Steuer /** 518eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 519eecd49c4SPatrick Steuer * instruction 520eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 521eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 522eecd49c4SPatrick Steuer * @dest: address of destination memory area 523eecd49c4SPatrick Steuer * @src: address of source memory area 524eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 525eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 526eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 527eecd49c4SPatrick Steuer */ 528eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 529eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 530eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 531eecd49c4SPatrick Steuer { 532b84d0c41SHeiko Carstens union register_pair d, s, a; 533eecd49c4SPatrick Steuer 534b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 535b84d0c41SHeiko Carstens s.even = (unsigned long)src; 536b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 537b84d0c41SHeiko Carstens a.even = (unsigned long)aad; 538b84d0c41SHeiko Carstens a.odd = (unsigned long)aad_len; 539eecd49c4SPatrick Steuer asm volatile( 540b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 541b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 542eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 543eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 544b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair), [src] "+&d" (s.pair), 545b84d0c41SHeiko Carstens [aad] "+&d" (a.pair) 546b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 547b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMA) 548b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 549eecd49c4SPatrick Steuer } 550eecd49c4SPatrick Steuer 551c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 552