1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2c7d4d259SMartin Schwidefsky /* 3c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 4c7d4d259SMartin Schwidefsky * 5eecd49c4SPatrick Steuer * Copyright IBM Corp. 2003, 2017 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 13577606708SHarald Freudenberger 13677606708SHarald Freudenberger /* 137985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 138edc63a37SMartin Schwidefsky * instruction 139c7d4d259SMartin Schwidefsky */ 140985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 141985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 142985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 143f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 144f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 145c7d4d259SMartin Schwidefsky 146eecd49c4SPatrick Steuer /* 147eecd49c4SPatrick Steuer * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 148eecd49c4SPatrick Steuer * instruction 149eecd49c4SPatrick Steuer */ 150eecd49c4SPatrick Steuer #define CPACF_KMA_QUERY 0x00 151eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_128 0x12 152eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_192 0x13 153eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_256 0x14 154eecd49c4SPatrick Steuer 155eecd49c4SPatrick Steuer /* 156eecd49c4SPatrick Steuer * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction 157eecd49c4SPatrick Steuer */ 158eecd49c4SPatrick Steuer #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */ 159eecd49c4SPatrick Steuer #define CPACF_KMA_LAAD 0x200 /* Last-AAD */ 160eecd49c4SPatrick Steuer #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */ 161eecd49c4SPatrick Steuer 16269c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 16369c0e360SMartin Schwidefsky 164c7d4d259SMartin Schwidefsky /** 165c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 166c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 167c7d4d259SMartin Schwidefsky * @func: the function code to test for 168c7d4d259SMartin Schwidefsky * 169c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 170c7d4d259SMartin Schwidefsky * and checks if @func is available 171c7d4d259SMartin Schwidefsky * 172c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 173c7d4d259SMartin Schwidefsky */ 1745c8e10f8SJiri Kosina static __always_inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 175c7d4d259SMartin Schwidefsky { 176c7d4d259SMartin Schwidefsky asm volatile( 177*b84d0c41SHeiko Carstens " lghi 0,0\n" /* query function */ 178*b84d0c41SHeiko Carstens " lgr 1,%[mask]\n" 1791afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 180b112a2dfSJason J. Herne /* Parameter regs are ignored, but must be nonzero and unique */ 181b112a2dfSJason J. Herne "0: .insn rrf,%[opc] << 16,2,4,6,0\n" 182c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 18369c0e360SMartin Schwidefsky : "=m" (*mask) 184*b84d0c41SHeiko Carstens : [mask] "d" ((unsigned long)mask), [opc] "i" (opcode) 185*b84d0c41SHeiko Carstens : "cc", "0", "1"); 186c7d4d259SMartin Schwidefsky } 187c7d4d259SMartin Schwidefsky 188d83623c5SMasahiro Yamada static __always_inline int __cpacf_check_opcode(unsigned int opcode) 189c7d4d259SMartin Schwidefsky { 190c7d4d259SMartin Schwidefsky switch (opcode) { 191c7d4d259SMartin Schwidefsky case CPACF_KMAC: 192c7d4d259SMartin Schwidefsky case CPACF_KM: 193c7d4d259SMartin Schwidefsky case CPACF_KMC: 194c7d4d259SMartin Schwidefsky case CPACF_KIMD: 195c7d4d259SMartin Schwidefsky case CPACF_KLMD: 19669c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1971afd43e0SDavid Hildenbrand case CPACF_PCKMO: 19869c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1991afd43e0SDavid Hildenbrand case CPACF_KMF: 2001afd43e0SDavid Hildenbrand case CPACF_KMO: 201c7d4d259SMartin Schwidefsky case CPACF_PCC: 202c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 20369c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 204985a9d20SHarald Freudenberger case CPACF_PRNO: 20569c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 206eecd49c4SPatrick Steuer case CPACF_KMA: 207eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 208c7d4d259SMartin Schwidefsky default: 209c7d4d259SMartin Schwidefsky BUG(); 210c7d4d259SMartin Schwidefsky } 21169c0e360SMartin Schwidefsky } 21269c0e360SMartin Schwidefsky 213e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 21469c0e360SMartin Schwidefsky { 21569c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 21669c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 21769c0e360SMartin Schwidefsky return 1; 21869c0e360SMartin Schwidefsky } 21969c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 22069c0e360SMartin Schwidefsky return 0; 22169c0e360SMartin Schwidefsky } 22269c0e360SMartin Schwidefsky 22369c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 22469c0e360SMartin Schwidefsky { 22569c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 22669c0e360SMartin Schwidefsky } 22769c0e360SMartin Schwidefsky 228d83623c5SMasahiro Yamada static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func) 22969c0e360SMartin Schwidefsky { 23069c0e360SMartin Schwidefsky cpacf_mask_t mask; 23169c0e360SMartin Schwidefsky 23269c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 23369c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 23469c0e360SMartin Schwidefsky return 0; 235c7d4d259SMartin Schwidefsky } 236c7d4d259SMartin Schwidefsky 237c7d4d259SMartin Schwidefsky /** 238c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 239c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 240c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 241c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 242c7d4d259SMartin Schwidefsky * @src: address of source memory area 243c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 244c7d4d259SMartin Schwidefsky * 245c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 246c7d4d259SMartin Schwidefsky * encryption/decryption funcs 247c7d4d259SMartin Schwidefsky */ 248edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 249c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 250c7d4d259SMartin Schwidefsky { 251*b84d0c41SHeiko Carstens union register_pair d, s; 252c7d4d259SMartin Schwidefsky 253*b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 254*b84d0c41SHeiko Carstens s.even = (unsigned long)src; 255*b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 256c7d4d259SMartin Schwidefsky asm volatile( 257*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 258*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 259c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 260c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 261*b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 262*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 263*b84d0c41SHeiko Carstens [opc] "i" (CPACF_KM) 264*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 265c7d4d259SMartin Schwidefsky 266*b84d0c41SHeiko Carstens return src_len - s.odd; 267c7d4d259SMartin Schwidefsky } 268c7d4d259SMartin Schwidefsky 269c7d4d259SMartin Schwidefsky /** 270c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 271c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 272c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 273c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 274c7d4d259SMartin Schwidefsky * @src: address of source memory area 275c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 276c7d4d259SMartin Schwidefsky * 277c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 278c7d4d259SMartin Schwidefsky * encryption/decryption funcs 279c7d4d259SMartin Schwidefsky */ 280edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 281c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 282c7d4d259SMartin Schwidefsky { 283*b84d0c41SHeiko Carstens union register_pair d, s; 284c7d4d259SMartin Schwidefsky 285*b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 286*b84d0c41SHeiko Carstens s.even = (unsigned long)src; 287*b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 288c7d4d259SMartin Schwidefsky asm volatile( 289*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 290*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 291c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 292c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 293*b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 294*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 295*b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMC) 296*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 297c7d4d259SMartin Schwidefsky 298*b84d0c41SHeiko Carstens return src_len - s.odd; 299c7d4d259SMartin Schwidefsky } 300c7d4d259SMartin Schwidefsky 301c7d4d259SMartin Schwidefsky /** 302c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 303c7d4d259SMartin Schwidefsky * instruction 304c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 305c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 306c7d4d259SMartin Schwidefsky * @src: address of source memory area 307c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 308c7d4d259SMartin Schwidefsky */ 3090177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 310c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 311c7d4d259SMartin Schwidefsky { 312*b84d0c41SHeiko Carstens union register_pair s; 313c7d4d259SMartin Schwidefsky 314*b84d0c41SHeiko Carstens s.even = (unsigned long)src; 315*b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 316c7d4d259SMartin Schwidefsky asm volatile( 317*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 318*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 319c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 320c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 321*b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 322*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)(param)), 323*b84d0c41SHeiko Carstens [opc] "i" (CPACF_KIMD) 324*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 325c7d4d259SMartin Schwidefsky } 326c7d4d259SMartin Schwidefsky 327c7d4d259SMartin Schwidefsky /** 328c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 329c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 330c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 331c7d4d259SMartin Schwidefsky * @src: address of source memory area 332c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 333c7d4d259SMartin Schwidefsky */ 3340177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 335c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 336c7d4d259SMartin Schwidefsky { 337*b84d0c41SHeiko Carstens union register_pair s; 338c7d4d259SMartin Schwidefsky 339*b84d0c41SHeiko Carstens s.even = (unsigned long)src; 340*b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 341c7d4d259SMartin Schwidefsky asm volatile( 342*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 343*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 344c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 345c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 346*b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 347*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 348*b84d0c41SHeiko Carstens [opc] "i" (CPACF_KLMD) 349*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 350c7d4d259SMartin Schwidefsky } 351c7d4d259SMartin Schwidefsky 352c7d4d259SMartin Schwidefsky /** 353c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 354c7d4d259SMartin Schwidefsky * instruction 355c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 356c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 357c7d4d259SMartin Schwidefsky * @src: address of source memory area 358c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 359c7d4d259SMartin Schwidefsky * 360c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 361c7d4d259SMartin Schwidefsky */ 362edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 363c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 364c7d4d259SMartin Schwidefsky { 365*b84d0c41SHeiko Carstens union register_pair s; 366c7d4d259SMartin Schwidefsky 367*b84d0c41SHeiko Carstens s.even = (unsigned long)src; 368*b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 369c7d4d259SMartin Schwidefsky asm volatile( 370*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 371*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 372c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 373c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 374*b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 375*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 376*b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMAC) 377*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 378c7d4d259SMartin Schwidefsky 379*b84d0c41SHeiko Carstens return src_len - s.odd; 380c7d4d259SMartin Schwidefsky } 381c7d4d259SMartin Schwidefsky 382c7d4d259SMartin Schwidefsky /** 383c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 384c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 385c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 386c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 387c7d4d259SMartin Schwidefsky * @src: address of source memory area 388c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 389c7d4d259SMartin Schwidefsky * @counter: address of counter value 390c7d4d259SMartin Schwidefsky * 391c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 392c7d4d259SMartin Schwidefsky * encryption/decryption funcs 393c7d4d259SMartin Schwidefsky */ 394edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 395c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 396c7d4d259SMartin Schwidefsky { 397*b84d0c41SHeiko Carstens union register_pair d, s, c; 398c7d4d259SMartin Schwidefsky 399*b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 400*b84d0c41SHeiko Carstens s.even = (unsigned long)src; 401*b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 402*b84d0c41SHeiko Carstens c.even = (unsigned long)counter; 403c7d4d259SMartin Schwidefsky asm volatile( 404*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 405*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 406c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 407c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 408*b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair), 409*b84d0c41SHeiko Carstens [ctr] "+&d" (c.pair) 410*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 411*b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMCTR) 412*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 413c7d4d259SMartin Schwidefsky 414*b84d0c41SHeiko Carstens return src_len - s.odd; 415c7d4d259SMartin Schwidefsky } 416c7d4d259SMartin Schwidefsky 417c7d4d259SMartin Schwidefsky /** 418985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 419c7d4d259SMartin Schwidefsky * instruction 420985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 421c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 422c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 423c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 424c7d4d259SMartin Schwidefsky * @seed: address of seed data 425c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 426c7d4d259SMartin Schwidefsky */ 427985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 428f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 429f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 430c7d4d259SMartin Schwidefsky { 431*b84d0c41SHeiko Carstens union register_pair d, s; 432c7d4d259SMartin Schwidefsky 433*b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 434*b84d0c41SHeiko Carstens d.odd = (unsigned long)dest_len; 435*b84d0c41SHeiko Carstens s.even = (unsigned long)seed; 436*b84d0c41SHeiko Carstens s.odd = (unsigned long)seed_len; 437c7d4d259SMartin Schwidefsky asm volatile ( 438*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 439*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 440c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 441c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 442*b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair) 443*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 444*b84d0c41SHeiko Carstens [seed] "d" (s.pair), [opc] "i" (CPACF_PRNO) 445*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 446c7d4d259SMartin Schwidefsky } 447c7d4d259SMartin Schwidefsky 448c7d4d259SMartin Schwidefsky /** 449f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 450f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 451f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 452f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 453f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 454f75fa65dSHarald Freudenberger */ 455f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 456f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 457f75fa65dSHarald Freudenberger { 458*b84d0c41SHeiko Carstens union register_pair u, c; 459f75fa65dSHarald Freudenberger 460*b84d0c41SHeiko Carstens u.even = (unsigned long)ucbuf; 461*b84d0c41SHeiko Carstens u.odd = (unsigned long)ucbuf_len; 462*b84d0c41SHeiko Carstens c.even = (unsigned long)cbuf; 463*b84d0c41SHeiko Carstens c.odd = (unsigned long)cbuf_len; 464f75fa65dSHarald Freudenberger asm volatile ( 465*b84d0c41SHeiko Carstens " lghi 0,%[fc]\n" 466f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 467f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 468*b84d0c41SHeiko Carstens : [ucbuf] "+&d" (u.pair), [cbuf] "+&d" (c.pair) 469*b84d0c41SHeiko Carstens : [fc] "K" (CPACF_PRNO_TRNG), [opc] "i" (CPACF_PRNO) 470*b84d0c41SHeiko Carstens : "cc", "memory", "0"); 471f75fa65dSHarald Freudenberger } 472f75fa65dSHarald Freudenberger 473f75fa65dSHarald Freudenberger /** 474c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 475c7d4d259SMartin Schwidefsky * instruction 476c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 477c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 478c7d4d259SMartin Schwidefsky */ 4790177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 480c7d4d259SMartin Schwidefsky { 481c7d4d259SMartin Schwidefsky asm volatile( 482*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 483*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 484c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 485c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 486c7d4d259SMartin Schwidefsky : 487*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 488*b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCC) 489*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 490c7d4d259SMartin Schwidefsky } 491c7d4d259SMartin Schwidefsky 49277606708SHarald Freudenberger /** 49377606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 49477606708SHarald Freudenberger * MANAGEMENT) instruction 49577606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 49677606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 49777606708SHarald Freudenberger * 49877606708SHarald Freudenberger * Returns 0. 49977606708SHarald Freudenberger */ 50077606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 50177606708SHarald Freudenberger { 50277606708SHarald Freudenberger asm volatile( 503*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 504*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 50577606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 50677606708SHarald Freudenberger : 507*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 508*b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCKMO) 509*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 51077606708SHarald Freudenberger } 51177606708SHarald Freudenberger 512eecd49c4SPatrick Steuer /** 513eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 514eecd49c4SPatrick Steuer * instruction 515eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 516eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 517eecd49c4SPatrick Steuer * @dest: address of destination memory area 518eecd49c4SPatrick Steuer * @src: address of source memory area 519eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 520eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 521eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 522eecd49c4SPatrick Steuer */ 523eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 524eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 525eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 526eecd49c4SPatrick Steuer { 527*b84d0c41SHeiko Carstens union register_pair d, s, a; 528eecd49c4SPatrick Steuer 529*b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 530*b84d0c41SHeiko Carstens s.even = (unsigned long)src; 531*b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 532*b84d0c41SHeiko Carstens a.even = (unsigned long)aad; 533*b84d0c41SHeiko Carstens a.odd = (unsigned long)aad_len; 534eecd49c4SPatrick Steuer asm volatile( 535*b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 536*b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 537eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 538eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 539*b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair), [src] "+&d" (s.pair), 540*b84d0c41SHeiko Carstens [aad] "+&d" (a.pair) 541*b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 542*b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMA) 543*b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 544eecd49c4SPatrick Steuer } 545eecd49c4SPatrick Steuer 546c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 547