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 */ 31c7d4d259SMartin Schwidefsky 32c7d4d259SMartin Schwidefsky /* 3327937843SMartin Schwidefsky * En/decryption modifier bits 34edc63a37SMartin Schwidefsky */ 3527937843SMartin Schwidefsky #define CPACF_ENCRYPT 0x00 36edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 37edc63a37SMartin Schwidefsky 38edc63a37SMartin Schwidefsky /* 39edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 40c7d4d259SMartin Schwidefsky */ 41c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 42edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 43edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 44edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 45edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 46edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 47edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 4827937843SMartin Schwidefsky #define CPACF_KM_PAES_128 0x1a 4927937843SMartin Schwidefsky #define CPACF_KM_PAES_192 0x1b 5027937843SMartin Schwidefsky #define CPACF_KM_PAES_256 0x1c 51edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 52edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 5327937843SMartin Schwidefsky #define CPACF_KM_PXTS_128 0x3a 5427937843SMartin Schwidefsky #define CPACF_KM_PXTS_256 0x3c 55c7d4d259SMartin Schwidefsky 56c7d4d259SMartin Schwidefsky /* 57c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 58edc63a37SMartin Schwidefsky * instruction 59c7d4d259SMartin Schwidefsky */ 60c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 61edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 62edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 63edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 64edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 65edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 66edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 6727937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 6827937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 6927937843SMartin Schwidefsky #define CPACF_KMC_PAES_256 0x1c 70c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 71c7d4d259SMartin Schwidefsky 72c7d4d259SMartin Schwidefsky /* 73c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 74edc63a37SMartin Schwidefsky * instruction 75c7d4d259SMartin Schwidefsky */ 76c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 77edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 78edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 79edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 80edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 81edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 82edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 8327937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 8427937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 8527937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_256 0x1c 86c7d4d259SMartin Schwidefsky 87c7d4d259SMartin Schwidefsky /* 88c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 89edc63a37SMartin Schwidefsky * instruction 90c7d4d259SMartin Schwidefsky */ 91c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 92c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 93c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 94c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 95c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 96c7d4d259SMartin Schwidefsky 97c7d4d259SMartin Schwidefsky /* 98c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 99edc63a37SMartin Schwidefsky * instruction 100c7d4d259SMartin Schwidefsky */ 101c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 102c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 103c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 104c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 105c7d4d259SMartin Schwidefsky 106c7d4d259SMartin Schwidefsky /* 107c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 108edc63a37SMartin Schwidefsky * instruction 109c7d4d259SMartin Schwidefsky */ 110c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 111c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 112c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 113c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 114c7d4d259SMartin Schwidefsky 115c7d4d259SMartin Schwidefsky /* 11677606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 11777606708SHarald Freudenberger * instruction 11877606708SHarald Freudenberger */ 11977606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 12077606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 12177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 12277606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 12377606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 12477606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 12577606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 12677606708SHarald Freudenberger 12777606708SHarald Freudenberger /* 128985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 129edc63a37SMartin Schwidefsky * instruction 130c7d4d259SMartin Schwidefsky */ 131985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 132985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 133985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 134f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 135f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 136c7d4d259SMartin Schwidefsky 137eecd49c4SPatrick Steuer /* 138eecd49c4SPatrick Steuer * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 139eecd49c4SPatrick Steuer * instruction 140eecd49c4SPatrick Steuer */ 141eecd49c4SPatrick Steuer #define CPACF_KMA_QUERY 0x00 142eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_128 0x12 143eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_192 0x13 144eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_256 0x14 145eecd49c4SPatrick Steuer 146eecd49c4SPatrick Steuer /* 147eecd49c4SPatrick Steuer * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction 148eecd49c4SPatrick Steuer */ 149eecd49c4SPatrick Steuer #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */ 150eecd49c4SPatrick Steuer #define CPACF_KMA_LAAD 0x200 /* Last-AAD */ 151eecd49c4SPatrick Steuer #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */ 152eecd49c4SPatrick Steuer 15369c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 15469c0e360SMartin Schwidefsky 155c7d4d259SMartin Schwidefsky /** 156c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 157c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 158c7d4d259SMartin Schwidefsky * @func: the function code to test for 159c7d4d259SMartin Schwidefsky * 160c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 161c7d4d259SMartin Schwidefsky * and checks if @func is available 162c7d4d259SMartin Schwidefsky * 163c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 164c7d4d259SMartin Schwidefsky */ 16569c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 166c7d4d259SMartin Schwidefsky { 167c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 16869c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 169c7d4d259SMartin Schwidefsky 170c7d4d259SMartin Schwidefsky asm volatile( 1711afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 172b112a2dfSJason J. Herne /* Parameter regs are ignored, but must be nonzero and unique */ 173b112a2dfSJason J. Herne "0: .insn rrf,%[opc] << 16,2,4,6,0\n" 174c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 17569c0e360SMartin Schwidefsky : "=m" (*mask) 176c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 177c7d4d259SMartin Schwidefsky : "cc"); 178c7d4d259SMartin Schwidefsky } 179c7d4d259SMartin Schwidefsky 18069c0e360SMartin Schwidefsky static inline int __cpacf_check_opcode(unsigned int opcode) 181c7d4d259SMartin Schwidefsky { 182c7d4d259SMartin Schwidefsky switch (opcode) { 183c7d4d259SMartin Schwidefsky case CPACF_KMAC: 184c7d4d259SMartin Schwidefsky case CPACF_KM: 185c7d4d259SMartin Schwidefsky case CPACF_KMC: 186c7d4d259SMartin Schwidefsky case CPACF_KIMD: 187c7d4d259SMartin Schwidefsky case CPACF_KLMD: 18869c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1891afd43e0SDavid Hildenbrand case CPACF_PCKMO: 19069c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1911afd43e0SDavid Hildenbrand case CPACF_KMF: 1921afd43e0SDavid Hildenbrand case CPACF_KMO: 193c7d4d259SMartin Schwidefsky case CPACF_PCC: 194c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 19569c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 196985a9d20SHarald Freudenberger case CPACF_PRNO: 19769c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 198eecd49c4SPatrick Steuer case CPACF_KMA: 199eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 200c7d4d259SMartin Schwidefsky default: 201c7d4d259SMartin Schwidefsky BUG(); 202c7d4d259SMartin Schwidefsky } 20369c0e360SMartin Schwidefsky } 20469c0e360SMartin Schwidefsky 205*e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 20669c0e360SMartin Schwidefsky { 20769c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 20869c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 20969c0e360SMartin Schwidefsky return 1; 21069c0e360SMartin Schwidefsky } 21169c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 21269c0e360SMartin Schwidefsky return 0; 21369c0e360SMartin Schwidefsky } 21469c0e360SMartin Schwidefsky 21569c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 21669c0e360SMartin Schwidefsky { 21769c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 21869c0e360SMartin Schwidefsky } 21969c0e360SMartin Schwidefsky 22069c0e360SMartin Schwidefsky static inline int cpacf_query_func(unsigned int opcode, unsigned int func) 22169c0e360SMartin Schwidefsky { 22269c0e360SMartin Schwidefsky cpacf_mask_t mask; 22369c0e360SMartin Schwidefsky 22469c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 22569c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 22669c0e360SMartin Schwidefsky return 0; 227c7d4d259SMartin Schwidefsky } 228c7d4d259SMartin Schwidefsky 229c7d4d259SMartin Schwidefsky /** 230c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 231c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 232c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 233c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 234c7d4d259SMartin Schwidefsky * @src: address of source memory area 235c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 236c7d4d259SMartin Schwidefsky * 237c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 238c7d4d259SMartin Schwidefsky * encryption/decryption funcs 239c7d4d259SMartin Schwidefsky */ 240edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 241c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 242c7d4d259SMartin Schwidefsky { 243c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 244c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 245c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 246c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 247c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 248c7d4d259SMartin Schwidefsky 249c7d4d259SMartin Schwidefsky asm volatile( 250c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 251c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 252c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 253c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 254c7d4d259SMartin Schwidefsky : "cc", "memory"); 255c7d4d259SMartin Schwidefsky 256c7d4d259SMartin Schwidefsky return src_len - r3; 257c7d4d259SMartin Schwidefsky } 258c7d4d259SMartin Schwidefsky 259c7d4d259SMartin Schwidefsky /** 260c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 261c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 262c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 263c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 264c7d4d259SMartin Schwidefsky * @src: address of source memory area 265c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 266c7d4d259SMartin Schwidefsky * 267c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 268c7d4d259SMartin Schwidefsky * encryption/decryption funcs 269c7d4d259SMartin Schwidefsky */ 270edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 271c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 272c7d4d259SMartin Schwidefsky { 273c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 274c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 275c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 276c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 277c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 278c7d4d259SMartin Schwidefsky 279c7d4d259SMartin Schwidefsky asm volatile( 280c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 281c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 282c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 283c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 284c7d4d259SMartin Schwidefsky : "cc", "memory"); 285c7d4d259SMartin Schwidefsky 286c7d4d259SMartin Schwidefsky return src_len - r3; 287c7d4d259SMartin Schwidefsky } 288c7d4d259SMartin Schwidefsky 289c7d4d259SMartin Schwidefsky /** 290c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 291c7d4d259SMartin Schwidefsky * instruction 292c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 293c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 294c7d4d259SMartin Schwidefsky * @src: address of source memory area 295c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 296c7d4d259SMartin Schwidefsky */ 2970177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 298c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 299c7d4d259SMartin Schwidefsky { 300c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 301c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 302c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 303c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 304c7d4d259SMartin Schwidefsky 305c7d4d259SMartin Schwidefsky asm volatile( 306c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 307c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 308c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 309c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 310c7d4d259SMartin Schwidefsky : "cc", "memory"); 311c7d4d259SMartin Schwidefsky } 312c7d4d259SMartin Schwidefsky 313c7d4d259SMartin Schwidefsky /** 314c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 315c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 316c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 317c7d4d259SMartin Schwidefsky * @src: address of source memory area 318c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 319c7d4d259SMartin Schwidefsky */ 3200177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 321c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 322c7d4d259SMartin Schwidefsky { 323c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 324c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 325c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 326c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 327c7d4d259SMartin Schwidefsky 328c7d4d259SMartin Schwidefsky asm volatile( 329c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 330c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 331c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 332c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 333c7d4d259SMartin Schwidefsky : "cc", "memory"); 334c7d4d259SMartin Schwidefsky } 335c7d4d259SMartin Schwidefsky 336c7d4d259SMartin Schwidefsky /** 337c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 338c7d4d259SMartin Schwidefsky * instruction 339c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 340c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 341c7d4d259SMartin Schwidefsky * @src: address of source memory area 342c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 343c7d4d259SMartin Schwidefsky * 344c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 345c7d4d259SMartin Schwidefsky */ 346edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 347c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 348c7d4d259SMartin Schwidefsky { 349c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 350c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 351c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 352c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 353c7d4d259SMartin Schwidefsky 354c7d4d259SMartin Schwidefsky asm volatile( 355c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 356c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 357c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 358c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 359c7d4d259SMartin Schwidefsky : "cc", "memory"); 360c7d4d259SMartin Schwidefsky 361c7d4d259SMartin Schwidefsky return src_len - r3; 362c7d4d259SMartin Schwidefsky } 363c7d4d259SMartin Schwidefsky 364c7d4d259SMartin Schwidefsky /** 365c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 366c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 367c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 368c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 369c7d4d259SMartin Schwidefsky * @src: address of source memory area 370c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 371c7d4d259SMartin Schwidefsky * @counter: address of counter value 372c7d4d259SMartin Schwidefsky * 373c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 374c7d4d259SMartin Schwidefsky * encryption/decryption funcs 375c7d4d259SMartin Schwidefsky */ 376edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 377c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 378c7d4d259SMartin Schwidefsky { 379c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 380c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 381c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 382c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 383c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 384c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 385c7d4d259SMartin Schwidefsky 386c7d4d259SMartin Schwidefsky asm volatile( 387c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 388c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 389c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 390c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 391c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 392c7d4d259SMartin Schwidefsky : "cc", "memory"); 393c7d4d259SMartin Schwidefsky 394c7d4d259SMartin Schwidefsky return src_len - r3; 395c7d4d259SMartin Schwidefsky } 396c7d4d259SMartin Schwidefsky 397c7d4d259SMartin Schwidefsky /** 398985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 399c7d4d259SMartin Schwidefsky * instruction 400985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 401c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 402c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 403c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 404c7d4d259SMartin Schwidefsky * @seed: address of seed data 405c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 406c7d4d259SMartin Schwidefsky */ 407985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 408f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 409f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 410c7d4d259SMartin Schwidefsky { 411c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 412c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 413c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 414c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 415c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 416c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 417c7d4d259SMartin Schwidefsky 418c7d4d259SMartin Schwidefsky asm volatile ( 419c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 420c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 421c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 422c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 423985a9d20SHarald Freudenberger [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PRNO) 424c7d4d259SMartin Schwidefsky : "cc", "memory"); 425c7d4d259SMartin Schwidefsky } 426c7d4d259SMartin Schwidefsky 427c7d4d259SMartin Schwidefsky /** 428f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 429f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 430f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 431f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 432f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 433f75fa65dSHarald Freudenberger */ 434f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 435f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 436f75fa65dSHarald Freudenberger { 437f75fa65dSHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) CPACF_PRNO_TRNG; 438f75fa65dSHarald Freudenberger register unsigned long r2 asm("2") = (unsigned long) ucbuf; 439f75fa65dSHarald Freudenberger register unsigned long r3 asm("3") = (unsigned long) ucbuf_len; 440f75fa65dSHarald Freudenberger register unsigned long r4 asm("4") = (unsigned long) cbuf; 441f75fa65dSHarald Freudenberger register unsigned long r5 asm("5") = (unsigned long) cbuf_len; 442f75fa65dSHarald Freudenberger 443f75fa65dSHarald Freudenberger asm volatile ( 444f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 445f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 446f75fa65dSHarald Freudenberger : [ucbuf] "+a" (r2), [ucbuflen] "+d" (r3), 447f75fa65dSHarald Freudenberger [cbuf] "+a" (r4), [cbuflen] "+d" (r5) 448f75fa65dSHarald Freudenberger : [fc] "d" (r0), [opc] "i" (CPACF_PRNO) 449f75fa65dSHarald Freudenberger : "cc", "memory"); 450f75fa65dSHarald Freudenberger } 451f75fa65dSHarald Freudenberger 452f75fa65dSHarald Freudenberger /** 453c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 454c7d4d259SMartin Schwidefsky * instruction 455c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 456c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 457c7d4d259SMartin Schwidefsky */ 4580177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 459c7d4d259SMartin Schwidefsky { 460c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 461c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 462c7d4d259SMartin Schwidefsky 463c7d4d259SMartin Schwidefsky asm volatile( 464c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 465c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 466c7d4d259SMartin Schwidefsky : 467c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 468c7d4d259SMartin Schwidefsky : "cc", "memory"); 469c7d4d259SMartin Schwidefsky } 470c7d4d259SMartin Schwidefsky 47177606708SHarald Freudenberger /** 47277606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 47377606708SHarald Freudenberger * MANAGEMENT) instruction 47477606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 47577606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 47677606708SHarald Freudenberger * 47777606708SHarald Freudenberger * Returns 0. 47877606708SHarald Freudenberger */ 47977606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 48077606708SHarald Freudenberger { 48177606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 48277606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 48377606708SHarald Freudenberger 48477606708SHarald Freudenberger asm volatile( 48577606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 48677606708SHarald Freudenberger : 48777606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 48877606708SHarald Freudenberger : "cc", "memory"); 48977606708SHarald Freudenberger } 49077606708SHarald Freudenberger 491eecd49c4SPatrick Steuer /** 492eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 493eecd49c4SPatrick Steuer * instruction 494eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 495eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 496eecd49c4SPatrick Steuer * @dest: address of destination memory area 497eecd49c4SPatrick Steuer * @src: address of source memory area 498eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 499eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 500eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 501eecd49c4SPatrick Steuer */ 502eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 503eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 504eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 505eecd49c4SPatrick Steuer { 506eecd49c4SPatrick Steuer register unsigned long r0 asm("0") = (unsigned long) func; 507eecd49c4SPatrick Steuer register unsigned long r1 asm("1") = (unsigned long) param; 508eecd49c4SPatrick Steuer register unsigned long r2 asm("2") = (unsigned long) src; 509eecd49c4SPatrick Steuer register unsigned long r3 asm("3") = (unsigned long) src_len; 510eecd49c4SPatrick Steuer register unsigned long r4 asm("4") = (unsigned long) aad; 511eecd49c4SPatrick Steuer register unsigned long r5 asm("5") = (unsigned long) aad_len; 512eecd49c4SPatrick Steuer register unsigned long r6 asm("6") = (unsigned long) dest; 513eecd49c4SPatrick Steuer 514eecd49c4SPatrick Steuer asm volatile( 515eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 516eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 517eecd49c4SPatrick Steuer : [dst] "+a" (r6), [src] "+a" (r2), [slen] "+d" (r3), 518eecd49c4SPatrick Steuer [aad] "+a" (r4), [alen] "+d" (r5) 519eecd49c4SPatrick Steuer : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMA) 520eecd49c4SPatrick Steuer : "cc", "memory"); 521eecd49c4SPatrick Steuer } 522eecd49c4SPatrick Steuer 523c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 524