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 96*3c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_224 0x20 97*3c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_256 0x21 98*3c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_384 0x22 99*3c2eb6b7SJoerg 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 110*3c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_224 0x20 111*3c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_256 0x21 112*3c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_384 0x22 113*3c2eb6b7SJoerg 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 */ 17469c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 175c7d4d259SMartin Schwidefsky { 176c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 17769c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 178c7d4d259SMartin Schwidefsky 179c7d4d259SMartin Schwidefsky asm volatile( 1801afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 181b112a2dfSJason J. Herne /* Parameter regs are ignored, but must be nonzero and unique */ 182b112a2dfSJason J. Herne "0: .insn rrf,%[opc] << 16,2,4,6,0\n" 183c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 18469c0e360SMartin Schwidefsky : "=m" (*mask) 185c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 186c7d4d259SMartin Schwidefsky : "cc"); 187c7d4d259SMartin Schwidefsky } 188c7d4d259SMartin Schwidefsky 189d83623c5SMasahiro Yamada static __always_inline int __cpacf_check_opcode(unsigned int opcode) 190c7d4d259SMartin Schwidefsky { 191c7d4d259SMartin Schwidefsky switch (opcode) { 192c7d4d259SMartin Schwidefsky case CPACF_KMAC: 193c7d4d259SMartin Schwidefsky case CPACF_KM: 194c7d4d259SMartin Schwidefsky case CPACF_KMC: 195c7d4d259SMartin Schwidefsky case CPACF_KIMD: 196c7d4d259SMartin Schwidefsky case CPACF_KLMD: 19769c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1981afd43e0SDavid Hildenbrand case CPACF_PCKMO: 19969c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 2001afd43e0SDavid Hildenbrand case CPACF_KMF: 2011afd43e0SDavid Hildenbrand case CPACF_KMO: 202c7d4d259SMartin Schwidefsky case CPACF_PCC: 203c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 20469c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 205985a9d20SHarald Freudenberger case CPACF_PRNO: 20669c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 207eecd49c4SPatrick Steuer case CPACF_KMA: 208eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 209c7d4d259SMartin Schwidefsky default: 210c7d4d259SMartin Schwidefsky BUG(); 211c7d4d259SMartin Schwidefsky } 21269c0e360SMartin Schwidefsky } 21369c0e360SMartin Schwidefsky 214e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 21569c0e360SMartin Schwidefsky { 21669c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 21769c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 21869c0e360SMartin Schwidefsky return 1; 21969c0e360SMartin Schwidefsky } 22069c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 22169c0e360SMartin Schwidefsky return 0; 22269c0e360SMartin Schwidefsky } 22369c0e360SMartin Schwidefsky 22469c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 22569c0e360SMartin Schwidefsky { 22669c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 22769c0e360SMartin Schwidefsky } 22869c0e360SMartin Schwidefsky 229d83623c5SMasahiro Yamada static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func) 23069c0e360SMartin Schwidefsky { 23169c0e360SMartin Schwidefsky cpacf_mask_t mask; 23269c0e360SMartin Schwidefsky 23369c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 23469c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 23569c0e360SMartin Schwidefsky return 0; 236c7d4d259SMartin Schwidefsky } 237c7d4d259SMartin Schwidefsky 238c7d4d259SMartin Schwidefsky /** 239c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 240c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 241c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 242c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 243c7d4d259SMartin Schwidefsky * @src: address of source memory area 244c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 245c7d4d259SMartin Schwidefsky * 246c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 247c7d4d259SMartin Schwidefsky * encryption/decryption funcs 248c7d4d259SMartin Schwidefsky */ 249edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 250c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 251c7d4d259SMartin Schwidefsky { 252c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 253c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 254c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 255c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 256c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 257c7d4d259SMartin Schwidefsky 258c7d4d259SMartin Schwidefsky asm volatile( 259c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 260c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 261c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 262c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 263c7d4d259SMartin Schwidefsky : "cc", "memory"); 264c7d4d259SMartin Schwidefsky 265c7d4d259SMartin Schwidefsky return src_len - r3; 266c7d4d259SMartin Schwidefsky } 267c7d4d259SMartin Schwidefsky 268c7d4d259SMartin Schwidefsky /** 269c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 270c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 271c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 272c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 273c7d4d259SMartin Schwidefsky * @src: address of source memory area 274c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 275c7d4d259SMartin Schwidefsky * 276c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 277c7d4d259SMartin Schwidefsky * encryption/decryption funcs 278c7d4d259SMartin Schwidefsky */ 279edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 280c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 281c7d4d259SMartin Schwidefsky { 282c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 283c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 284c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 285c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 286c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 287c7d4d259SMartin Schwidefsky 288c7d4d259SMartin Schwidefsky asm volatile( 289c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 290c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 291c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 292c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 293c7d4d259SMartin Schwidefsky : "cc", "memory"); 294c7d4d259SMartin Schwidefsky 295c7d4d259SMartin Schwidefsky return src_len - r3; 296c7d4d259SMartin Schwidefsky } 297c7d4d259SMartin Schwidefsky 298c7d4d259SMartin Schwidefsky /** 299c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 300c7d4d259SMartin Schwidefsky * instruction 301c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 302c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 303c7d4d259SMartin Schwidefsky * @src: address of source memory area 304c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 305c7d4d259SMartin Schwidefsky */ 3060177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 307c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 308c7d4d259SMartin Schwidefsky { 309c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 310c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 311c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 312c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 313c7d4d259SMartin Schwidefsky 314c7d4d259SMartin Schwidefsky asm volatile( 315c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 316c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 317c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 318c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 319c7d4d259SMartin Schwidefsky : "cc", "memory"); 320c7d4d259SMartin Schwidefsky } 321c7d4d259SMartin Schwidefsky 322c7d4d259SMartin Schwidefsky /** 323c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 324c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 325c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 326c7d4d259SMartin Schwidefsky * @src: address of source memory area 327c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 328c7d4d259SMartin Schwidefsky */ 3290177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 330c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 331c7d4d259SMartin Schwidefsky { 332c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 333c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 334c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 335c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 336c7d4d259SMartin Schwidefsky 337c7d4d259SMartin Schwidefsky asm volatile( 338c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 339c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 340c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 341c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 342c7d4d259SMartin Schwidefsky : "cc", "memory"); 343c7d4d259SMartin Schwidefsky } 344c7d4d259SMartin Schwidefsky 345c7d4d259SMartin Schwidefsky /** 346c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 347c7d4d259SMartin Schwidefsky * instruction 348c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 349c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 350c7d4d259SMartin Schwidefsky * @src: address of source memory area 351c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 352c7d4d259SMartin Schwidefsky * 353c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 354c7d4d259SMartin Schwidefsky */ 355edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 356c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 357c7d4d259SMartin Schwidefsky { 358c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 359c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 360c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 361c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 362c7d4d259SMartin Schwidefsky 363c7d4d259SMartin Schwidefsky asm volatile( 364c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 365c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 366c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 367c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 368c7d4d259SMartin Schwidefsky : "cc", "memory"); 369c7d4d259SMartin Schwidefsky 370c7d4d259SMartin Schwidefsky return src_len - r3; 371c7d4d259SMartin Schwidefsky } 372c7d4d259SMartin Schwidefsky 373c7d4d259SMartin Schwidefsky /** 374c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 375c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 376c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 377c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 378c7d4d259SMartin Schwidefsky * @src: address of source memory area 379c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 380c7d4d259SMartin Schwidefsky * @counter: address of counter value 381c7d4d259SMartin Schwidefsky * 382c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 383c7d4d259SMartin Schwidefsky * encryption/decryption funcs 384c7d4d259SMartin Schwidefsky */ 385edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 386c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 387c7d4d259SMartin Schwidefsky { 388c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 389c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 390c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 391c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 392c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 393c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 394c7d4d259SMartin Schwidefsky 395c7d4d259SMartin Schwidefsky asm volatile( 396c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 397c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 398c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 399c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 400c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 401c7d4d259SMartin Schwidefsky : "cc", "memory"); 402c7d4d259SMartin Schwidefsky 403c7d4d259SMartin Schwidefsky return src_len - r3; 404c7d4d259SMartin Schwidefsky } 405c7d4d259SMartin Schwidefsky 406c7d4d259SMartin Schwidefsky /** 407985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 408c7d4d259SMartin Schwidefsky * instruction 409985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 410c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 411c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 412c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 413c7d4d259SMartin Schwidefsky * @seed: address of seed data 414c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 415c7d4d259SMartin Schwidefsky */ 416985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 417f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 418f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 419c7d4d259SMartin Schwidefsky { 420c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 421c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 422c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 423c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 424c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 425c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 426c7d4d259SMartin Schwidefsky 427c7d4d259SMartin Schwidefsky asm volatile ( 428c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 429c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 430c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 431c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 432985a9d20SHarald Freudenberger [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PRNO) 433c7d4d259SMartin Schwidefsky : "cc", "memory"); 434c7d4d259SMartin Schwidefsky } 435c7d4d259SMartin Schwidefsky 436c7d4d259SMartin Schwidefsky /** 437f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 438f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 439f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 440f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 441f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 442f75fa65dSHarald Freudenberger */ 443f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 444f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 445f75fa65dSHarald Freudenberger { 446f75fa65dSHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) CPACF_PRNO_TRNG; 447f75fa65dSHarald Freudenberger register unsigned long r2 asm("2") = (unsigned long) ucbuf; 448f75fa65dSHarald Freudenberger register unsigned long r3 asm("3") = (unsigned long) ucbuf_len; 449f75fa65dSHarald Freudenberger register unsigned long r4 asm("4") = (unsigned long) cbuf; 450f75fa65dSHarald Freudenberger register unsigned long r5 asm("5") = (unsigned long) cbuf_len; 451f75fa65dSHarald Freudenberger 452f75fa65dSHarald Freudenberger asm volatile ( 453f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 454f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 455f75fa65dSHarald Freudenberger : [ucbuf] "+a" (r2), [ucbuflen] "+d" (r3), 456f75fa65dSHarald Freudenberger [cbuf] "+a" (r4), [cbuflen] "+d" (r5) 457f75fa65dSHarald Freudenberger : [fc] "d" (r0), [opc] "i" (CPACF_PRNO) 458f75fa65dSHarald Freudenberger : "cc", "memory"); 459f75fa65dSHarald Freudenberger } 460f75fa65dSHarald Freudenberger 461f75fa65dSHarald Freudenberger /** 462c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 463c7d4d259SMartin Schwidefsky * instruction 464c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 465c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 466c7d4d259SMartin Schwidefsky */ 4670177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 468c7d4d259SMartin Schwidefsky { 469c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 470c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 471c7d4d259SMartin Schwidefsky 472c7d4d259SMartin Schwidefsky asm volatile( 473c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 474c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 475c7d4d259SMartin Schwidefsky : 476c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 477c7d4d259SMartin Schwidefsky : "cc", "memory"); 478c7d4d259SMartin Schwidefsky } 479c7d4d259SMartin Schwidefsky 48077606708SHarald Freudenberger /** 48177606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 48277606708SHarald Freudenberger * MANAGEMENT) instruction 48377606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 48477606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 48577606708SHarald Freudenberger * 48677606708SHarald Freudenberger * Returns 0. 48777606708SHarald Freudenberger */ 48877606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 48977606708SHarald Freudenberger { 49077606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 49177606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 49277606708SHarald Freudenberger 49377606708SHarald Freudenberger asm volatile( 49477606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 49577606708SHarald Freudenberger : 49677606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 49777606708SHarald Freudenberger : "cc", "memory"); 49877606708SHarald Freudenberger } 49977606708SHarald Freudenberger 500eecd49c4SPatrick Steuer /** 501eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 502eecd49c4SPatrick Steuer * instruction 503eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 504eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 505eecd49c4SPatrick Steuer * @dest: address of destination memory area 506eecd49c4SPatrick Steuer * @src: address of source memory area 507eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 508eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 509eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 510eecd49c4SPatrick Steuer */ 511eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 512eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 513eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 514eecd49c4SPatrick Steuer { 515eecd49c4SPatrick Steuer register unsigned long r0 asm("0") = (unsigned long) func; 516eecd49c4SPatrick Steuer register unsigned long r1 asm("1") = (unsigned long) param; 517eecd49c4SPatrick Steuer register unsigned long r2 asm("2") = (unsigned long) src; 518eecd49c4SPatrick Steuer register unsigned long r3 asm("3") = (unsigned long) src_len; 519eecd49c4SPatrick Steuer register unsigned long r4 asm("4") = (unsigned long) aad; 520eecd49c4SPatrick Steuer register unsigned long r5 asm("5") = (unsigned long) aad_len; 521eecd49c4SPatrick Steuer register unsigned long r6 asm("6") = (unsigned long) dest; 522eecd49c4SPatrick Steuer 523eecd49c4SPatrick Steuer asm volatile( 524eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 525eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 526eecd49c4SPatrick Steuer : [dst] "+a" (r6), [src] "+a" (r2), [slen] "+d" (r3), 527eecd49c4SPatrick Steuer [aad] "+a" (r4), [alen] "+d" (r5) 528eecd49c4SPatrick Steuer : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMA) 529eecd49c4SPatrick Steuer : "cc", "memory"); 530eecd49c4SPatrick Steuer } 531eecd49c4SPatrick Steuer 532c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 533