1c7d4d259SMartin Schwidefsky /* 2c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 3c7d4d259SMartin Schwidefsky * 4*eecd49c4SPatrick Steuer * Copyright IBM Corp. 2003, 2017 5c7d4d259SMartin Schwidefsky * Author(s): Thomas Spatzier 6c7d4d259SMartin Schwidefsky * Jan Glauber 7c7d4d259SMartin Schwidefsky * Harald Freudenberger (freude@de.ibm.com) 8c7d4d259SMartin Schwidefsky * Martin Schwidefsky <schwidefsky@de.ibm.com> 9c7d4d259SMartin Schwidefsky */ 10c7d4d259SMartin Schwidefsky #ifndef _ASM_S390_CPACF_H 11c7d4d259SMartin Schwidefsky #define _ASM_S390_CPACF_H 12c7d4d259SMartin Schwidefsky 13c7d4d259SMartin Schwidefsky #include <asm/facility.h> 14c7d4d259SMartin Schwidefsky 15c7d4d259SMartin Schwidefsky /* 16c7d4d259SMartin Schwidefsky * Instruction opcodes for the CPACF instructions 17c7d4d259SMartin Schwidefsky */ 18c7d4d259SMartin Schwidefsky #define CPACF_KMAC 0xb91e /* MSA */ 19c7d4d259SMartin Schwidefsky #define CPACF_KM 0xb92e /* MSA */ 20c7d4d259SMartin Schwidefsky #define CPACF_KMC 0xb92f /* MSA */ 21c7d4d259SMartin Schwidefsky #define CPACF_KIMD 0xb93e /* MSA */ 22c7d4d259SMartin Schwidefsky #define CPACF_KLMD 0xb93f /* MSA */ 231afd43e0SDavid Hildenbrand #define CPACF_PCKMO 0xb928 /* MSA3 */ 241afd43e0SDavid Hildenbrand #define CPACF_KMF 0xb92a /* MSA4 */ 251afd43e0SDavid Hildenbrand #define CPACF_KMO 0xb92b /* MSA4 */ 26c7d4d259SMartin Schwidefsky #define CPACF_PCC 0xb92c /* MSA4 */ 27c7d4d259SMartin Schwidefsky #define CPACF_KMCTR 0xb92d /* MSA4 */ 28985a9d20SHarald Freudenberger #define CPACF_PRNO 0xb93c /* MSA5 */ 29152c1c8dSJason J. Herne #define CPACF_KMA 0xb929 /* MSA8 */ 30c7d4d259SMartin Schwidefsky 31c7d4d259SMartin Schwidefsky /* 3227937843SMartin Schwidefsky * En/decryption modifier bits 33edc63a37SMartin Schwidefsky */ 3427937843SMartin Schwidefsky #define CPACF_ENCRYPT 0x00 35edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 36edc63a37SMartin Schwidefsky 37edc63a37SMartin Schwidefsky /* 38edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 39c7d4d259SMartin Schwidefsky */ 40c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 41edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 42edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 43edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 44edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 45edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 46edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 4727937843SMartin Schwidefsky #define CPACF_KM_PAES_128 0x1a 4827937843SMartin Schwidefsky #define CPACF_KM_PAES_192 0x1b 4927937843SMartin Schwidefsky #define CPACF_KM_PAES_256 0x1c 50edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 51edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 5227937843SMartin Schwidefsky #define CPACF_KM_PXTS_128 0x3a 5327937843SMartin Schwidefsky #define CPACF_KM_PXTS_256 0x3c 54c7d4d259SMartin Schwidefsky 55c7d4d259SMartin Schwidefsky /* 56c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 57edc63a37SMartin Schwidefsky * instruction 58c7d4d259SMartin Schwidefsky */ 59c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 60edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 61edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 62edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 63edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 64edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 65edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 6627937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 6727937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 6827937843SMartin Schwidefsky #define CPACF_KMC_PAES_256 0x1c 69c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 70c7d4d259SMartin Schwidefsky 71c7d4d259SMartin Schwidefsky /* 72c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 73edc63a37SMartin Schwidefsky * instruction 74c7d4d259SMartin Schwidefsky */ 75c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 76edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 77edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 78edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 79edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 80edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 81edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 8227937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 8327937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 8427937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_256 0x1c 85c7d4d259SMartin Schwidefsky 86c7d4d259SMartin Schwidefsky /* 87c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 88edc63a37SMartin Schwidefsky * instruction 89c7d4d259SMartin Schwidefsky */ 90c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 91c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 92c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 93c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 94c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 95c7d4d259SMartin Schwidefsky 96c7d4d259SMartin Schwidefsky /* 97c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 98edc63a37SMartin Schwidefsky * instruction 99c7d4d259SMartin Schwidefsky */ 100c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 101c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 102c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 103c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 104c7d4d259SMartin Schwidefsky 105c7d4d259SMartin Schwidefsky /* 106c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 107edc63a37SMartin Schwidefsky * instruction 108c7d4d259SMartin Schwidefsky */ 109c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 110c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 111c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 112c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 113c7d4d259SMartin Schwidefsky 114c7d4d259SMartin Schwidefsky /* 11577606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 11677606708SHarald Freudenberger * instruction 11777606708SHarald Freudenberger */ 11877606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 11977606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 12077606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 12177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 12277606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 12377606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 12477606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 12577606708SHarald Freudenberger 12677606708SHarald Freudenberger /* 127985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 128edc63a37SMartin Schwidefsky * instruction 129c7d4d259SMartin Schwidefsky */ 130985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 131985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 132985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 133f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 134f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 135c7d4d259SMartin Schwidefsky 136*eecd49c4SPatrick Steuer /* 137*eecd49c4SPatrick Steuer * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 138*eecd49c4SPatrick Steuer * instruction 139*eecd49c4SPatrick Steuer */ 140*eecd49c4SPatrick Steuer #define CPACF_KMA_QUERY 0x00 141*eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_128 0x12 142*eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_192 0x13 143*eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_256 0x14 144*eecd49c4SPatrick Steuer 145*eecd49c4SPatrick Steuer /* 146*eecd49c4SPatrick Steuer * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction 147*eecd49c4SPatrick Steuer */ 148*eecd49c4SPatrick Steuer #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */ 149*eecd49c4SPatrick Steuer #define CPACF_KMA_LAAD 0x200 /* Last-AAD */ 150*eecd49c4SPatrick Steuer #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */ 151*eecd49c4SPatrick Steuer 15269c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 15369c0e360SMartin Schwidefsky 154c7d4d259SMartin Schwidefsky /** 155c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 156c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 157c7d4d259SMartin Schwidefsky * @func: the function code to test for 158c7d4d259SMartin Schwidefsky * 159c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 160c7d4d259SMartin Schwidefsky * and checks if @func is available 161c7d4d259SMartin Schwidefsky * 162c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 163c7d4d259SMartin Schwidefsky */ 16469c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 165c7d4d259SMartin Schwidefsky { 166c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 16769c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 168c7d4d259SMartin Schwidefsky 169c7d4d259SMartin Schwidefsky asm volatile( 1701afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 171b112a2dfSJason J. Herne /* Parameter regs are ignored, but must be nonzero and unique */ 172b112a2dfSJason J. Herne "0: .insn rrf,%[opc] << 16,2,4,6,0\n" 173c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 17469c0e360SMartin Schwidefsky : "=m" (*mask) 175c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 176c7d4d259SMartin Schwidefsky : "cc"); 177c7d4d259SMartin Schwidefsky } 178c7d4d259SMartin Schwidefsky 17969c0e360SMartin Schwidefsky static inline int __cpacf_check_opcode(unsigned int opcode) 180c7d4d259SMartin Schwidefsky { 181c7d4d259SMartin Schwidefsky switch (opcode) { 182c7d4d259SMartin Schwidefsky case CPACF_KMAC: 183c7d4d259SMartin Schwidefsky case CPACF_KM: 184c7d4d259SMartin Schwidefsky case CPACF_KMC: 185c7d4d259SMartin Schwidefsky case CPACF_KIMD: 186c7d4d259SMartin Schwidefsky case CPACF_KLMD: 18769c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1881afd43e0SDavid Hildenbrand case CPACF_PCKMO: 18969c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1901afd43e0SDavid Hildenbrand case CPACF_KMF: 1911afd43e0SDavid Hildenbrand case CPACF_KMO: 192c7d4d259SMartin Schwidefsky case CPACF_PCC: 193c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 19469c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 195985a9d20SHarald Freudenberger case CPACF_PRNO: 19669c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 197*eecd49c4SPatrick Steuer case CPACF_KMA: 198*eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 199c7d4d259SMartin Schwidefsky default: 200c7d4d259SMartin Schwidefsky BUG(); 201c7d4d259SMartin Schwidefsky } 20269c0e360SMartin Schwidefsky } 20369c0e360SMartin Schwidefsky 20469c0e360SMartin Schwidefsky static inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 20569c0e360SMartin Schwidefsky { 20669c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 20769c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 20869c0e360SMartin Schwidefsky return 1; 20969c0e360SMartin Schwidefsky } 21069c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 21169c0e360SMartin Schwidefsky return 0; 21269c0e360SMartin Schwidefsky } 21369c0e360SMartin Schwidefsky 21469c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 21569c0e360SMartin Schwidefsky { 21669c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 21769c0e360SMartin Schwidefsky } 21869c0e360SMartin Schwidefsky 21969c0e360SMartin Schwidefsky static inline int cpacf_query_func(unsigned int opcode, unsigned int func) 22069c0e360SMartin Schwidefsky { 22169c0e360SMartin Schwidefsky cpacf_mask_t mask; 22269c0e360SMartin Schwidefsky 22369c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 22469c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 22569c0e360SMartin Schwidefsky return 0; 226c7d4d259SMartin Schwidefsky } 227c7d4d259SMartin Schwidefsky 228c7d4d259SMartin Schwidefsky /** 229c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 230c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 231c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 232c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 233c7d4d259SMartin Schwidefsky * @src: address of source memory area 234c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 235c7d4d259SMartin Schwidefsky * 236c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 237c7d4d259SMartin Schwidefsky * encryption/decryption funcs 238c7d4d259SMartin Schwidefsky */ 239edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 240c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 241c7d4d259SMartin Schwidefsky { 242c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 243c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 244c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 245c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 246c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 247c7d4d259SMartin Schwidefsky 248c7d4d259SMartin Schwidefsky asm volatile( 249c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 250c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 251c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 252c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 253c7d4d259SMartin Schwidefsky : "cc", "memory"); 254c7d4d259SMartin Schwidefsky 255c7d4d259SMartin Schwidefsky return src_len - r3; 256c7d4d259SMartin Schwidefsky } 257c7d4d259SMartin Schwidefsky 258c7d4d259SMartin Schwidefsky /** 259c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 260c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 261c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 262c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 263c7d4d259SMartin Schwidefsky * @src: address of source memory area 264c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 265c7d4d259SMartin Schwidefsky * 266c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 267c7d4d259SMartin Schwidefsky * encryption/decryption funcs 268c7d4d259SMartin Schwidefsky */ 269edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 270c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 271c7d4d259SMartin Schwidefsky { 272c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 273c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 274c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 275c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 276c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 277c7d4d259SMartin Schwidefsky 278c7d4d259SMartin Schwidefsky asm volatile( 279c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 280c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 281c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 282c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 283c7d4d259SMartin Schwidefsky : "cc", "memory"); 284c7d4d259SMartin Schwidefsky 285c7d4d259SMartin Schwidefsky return src_len - r3; 286c7d4d259SMartin Schwidefsky } 287c7d4d259SMartin Schwidefsky 288c7d4d259SMartin Schwidefsky /** 289c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 290c7d4d259SMartin Schwidefsky * instruction 291c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 292c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 293c7d4d259SMartin Schwidefsky * @src: address of source memory area 294c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 295c7d4d259SMartin Schwidefsky */ 2960177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 297c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 298c7d4d259SMartin Schwidefsky { 299c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 300c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 301c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 302c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 303c7d4d259SMartin Schwidefsky 304c7d4d259SMartin Schwidefsky asm volatile( 305c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 306c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 307c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 308c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 309c7d4d259SMartin Schwidefsky : "cc", "memory"); 310c7d4d259SMartin Schwidefsky } 311c7d4d259SMartin Schwidefsky 312c7d4d259SMartin Schwidefsky /** 313c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 314c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 315c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 316c7d4d259SMartin Schwidefsky * @src: address of source memory area 317c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 318c7d4d259SMartin Schwidefsky */ 3190177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 320c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 321c7d4d259SMartin Schwidefsky { 322c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 323c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 324c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 325c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 326c7d4d259SMartin Schwidefsky 327c7d4d259SMartin Schwidefsky asm volatile( 328c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 329c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 330c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 331c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 332c7d4d259SMartin Schwidefsky : "cc", "memory"); 333c7d4d259SMartin Schwidefsky } 334c7d4d259SMartin Schwidefsky 335c7d4d259SMartin Schwidefsky /** 336c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 337c7d4d259SMartin Schwidefsky * instruction 338c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 339c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 340c7d4d259SMartin Schwidefsky * @src: address of source memory area 341c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 342c7d4d259SMartin Schwidefsky * 343c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 344c7d4d259SMartin Schwidefsky */ 345edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 346c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 347c7d4d259SMartin Schwidefsky { 348c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 349c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 350c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 351c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 352c7d4d259SMartin Schwidefsky 353c7d4d259SMartin Schwidefsky asm volatile( 354c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 355c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 356c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 357c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 358c7d4d259SMartin Schwidefsky : "cc", "memory"); 359c7d4d259SMartin Schwidefsky 360c7d4d259SMartin Schwidefsky return src_len - r3; 361c7d4d259SMartin Schwidefsky } 362c7d4d259SMartin Schwidefsky 363c7d4d259SMartin Schwidefsky /** 364c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 365c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 366c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 367c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 368c7d4d259SMartin Schwidefsky * @src: address of source memory area 369c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 370c7d4d259SMartin Schwidefsky * @counter: address of counter value 371c7d4d259SMartin Schwidefsky * 372c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 373c7d4d259SMartin Schwidefsky * encryption/decryption funcs 374c7d4d259SMartin Schwidefsky */ 375edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 376c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 377c7d4d259SMartin Schwidefsky { 378c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 379c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 380c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 381c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 382c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 383c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 384c7d4d259SMartin Schwidefsky 385c7d4d259SMartin Schwidefsky asm volatile( 386c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 387c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 388c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 389c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 390c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 391c7d4d259SMartin Schwidefsky : "cc", "memory"); 392c7d4d259SMartin Schwidefsky 393c7d4d259SMartin Schwidefsky return src_len - r3; 394c7d4d259SMartin Schwidefsky } 395c7d4d259SMartin Schwidefsky 396c7d4d259SMartin Schwidefsky /** 397985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 398c7d4d259SMartin Schwidefsky * instruction 399985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 400c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 401c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 402c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 403c7d4d259SMartin Schwidefsky * @seed: address of seed data 404c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 405c7d4d259SMartin Schwidefsky */ 406985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 407f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 408f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 409c7d4d259SMartin Schwidefsky { 410c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 411c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 412c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 413c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 414c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 415c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 416c7d4d259SMartin Schwidefsky 417c7d4d259SMartin Schwidefsky asm volatile ( 418c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 419c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 420c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 421c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 422985a9d20SHarald Freudenberger [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PRNO) 423c7d4d259SMartin Schwidefsky : "cc", "memory"); 424c7d4d259SMartin Schwidefsky } 425c7d4d259SMartin Schwidefsky 426c7d4d259SMartin Schwidefsky /** 427f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 428f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 429f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 430f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 431f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 432f75fa65dSHarald Freudenberger */ 433f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 434f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 435f75fa65dSHarald Freudenberger { 436f75fa65dSHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) CPACF_PRNO_TRNG; 437f75fa65dSHarald Freudenberger register unsigned long r2 asm("2") = (unsigned long) ucbuf; 438f75fa65dSHarald Freudenberger register unsigned long r3 asm("3") = (unsigned long) ucbuf_len; 439f75fa65dSHarald Freudenberger register unsigned long r4 asm("4") = (unsigned long) cbuf; 440f75fa65dSHarald Freudenberger register unsigned long r5 asm("5") = (unsigned long) cbuf_len; 441f75fa65dSHarald Freudenberger 442f75fa65dSHarald Freudenberger asm volatile ( 443f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 444f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 445f75fa65dSHarald Freudenberger : [ucbuf] "+a" (r2), [ucbuflen] "+d" (r3), 446f75fa65dSHarald Freudenberger [cbuf] "+a" (r4), [cbuflen] "+d" (r5) 447f75fa65dSHarald Freudenberger : [fc] "d" (r0), [opc] "i" (CPACF_PRNO) 448f75fa65dSHarald Freudenberger : "cc", "memory"); 449f75fa65dSHarald Freudenberger } 450f75fa65dSHarald Freudenberger 451f75fa65dSHarald Freudenberger /** 452c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 453c7d4d259SMartin Schwidefsky * instruction 454c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 455c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 456c7d4d259SMartin Schwidefsky */ 4570177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 458c7d4d259SMartin Schwidefsky { 459c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 460c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 461c7d4d259SMartin Schwidefsky 462c7d4d259SMartin Schwidefsky asm volatile( 463c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 464c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 465c7d4d259SMartin Schwidefsky : 466c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 467c7d4d259SMartin Schwidefsky : "cc", "memory"); 468c7d4d259SMartin Schwidefsky } 469c7d4d259SMartin Schwidefsky 47077606708SHarald Freudenberger /** 47177606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 47277606708SHarald Freudenberger * MANAGEMENT) instruction 47377606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 47477606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 47577606708SHarald Freudenberger * 47677606708SHarald Freudenberger * Returns 0. 47777606708SHarald Freudenberger */ 47877606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 47977606708SHarald Freudenberger { 48077606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 48177606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 48277606708SHarald Freudenberger 48377606708SHarald Freudenberger asm volatile( 48477606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 48577606708SHarald Freudenberger : 48677606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 48777606708SHarald Freudenberger : "cc", "memory"); 48877606708SHarald Freudenberger } 48977606708SHarald Freudenberger 490*eecd49c4SPatrick Steuer /** 491*eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 492*eecd49c4SPatrick Steuer * instruction 493*eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 494*eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 495*eecd49c4SPatrick Steuer * @dest: address of destination memory area 496*eecd49c4SPatrick Steuer * @src: address of source memory area 497*eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 498*eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 499*eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 500*eecd49c4SPatrick Steuer */ 501*eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 502*eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 503*eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 504*eecd49c4SPatrick Steuer { 505*eecd49c4SPatrick Steuer register unsigned long r0 asm("0") = (unsigned long) func; 506*eecd49c4SPatrick Steuer register unsigned long r1 asm("1") = (unsigned long) param; 507*eecd49c4SPatrick Steuer register unsigned long r2 asm("2") = (unsigned long) src; 508*eecd49c4SPatrick Steuer register unsigned long r3 asm("3") = (unsigned long) src_len; 509*eecd49c4SPatrick Steuer register unsigned long r4 asm("4") = (unsigned long) aad; 510*eecd49c4SPatrick Steuer register unsigned long r5 asm("5") = (unsigned long) aad_len; 511*eecd49c4SPatrick Steuer register unsigned long r6 asm("6") = (unsigned long) dest; 512*eecd49c4SPatrick Steuer 513*eecd49c4SPatrick Steuer asm volatile( 514*eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 515*eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 516*eecd49c4SPatrick Steuer : [dst] "+a" (r6), [src] "+a" (r2), [slen] "+d" (r3), 517*eecd49c4SPatrick Steuer [aad] "+a" (r4), [alen] "+d" (r5) 518*eecd49c4SPatrick Steuer : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMA) 519*eecd49c4SPatrick Steuer : "cc", "memory"); 520*eecd49c4SPatrick Steuer } 521*eecd49c4SPatrick Steuer 522c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 523