1c7d4d259SMartin Schwidefsky /* 2c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 3c7d4d259SMartin Schwidefsky * 4c7d4d259SMartin Schwidefsky * Copyright IBM Corp. 2003, 2016 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 */ 28c7d4d259SMartin Schwidefsky #define CPACF_PPNO 0xb93c /* MSA5 */ 29*152c1c8dSJason 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 /* 127c7d4d259SMartin Schwidefsky * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 128edc63a37SMartin Schwidefsky * instruction 129c7d4d259SMartin Schwidefsky */ 130c7d4d259SMartin Schwidefsky #define CPACF_PPNO_QUERY 0x00 131c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_GEN 0x03 132c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_SEED 0x83 133c7d4d259SMartin Schwidefsky 13469c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 13569c0e360SMartin Schwidefsky 136c7d4d259SMartin Schwidefsky /** 137c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 138c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 139c7d4d259SMartin Schwidefsky * @func: the function code to test for 140c7d4d259SMartin Schwidefsky * 141c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 142c7d4d259SMartin Schwidefsky * and checks if @func is available 143c7d4d259SMartin Schwidefsky * 144c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 145c7d4d259SMartin Schwidefsky */ 14669c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 147c7d4d259SMartin Schwidefsky { 148c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 14969c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 150c7d4d259SMartin Schwidefsky 151c7d4d259SMartin Schwidefsky asm volatile( 1521afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 153b112a2dfSJason J. Herne /* Parameter regs are ignored, but must be nonzero and unique */ 154b112a2dfSJason J. Herne "0: .insn rrf,%[opc] << 16,2,4,6,0\n" 155c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 15669c0e360SMartin Schwidefsky : "=m" (*mask) 157c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 158c7d4d259SMartin Schwidefsky : "cc"); 159c7d4d259SMartin Schwidefsky } 160c7d4d259SMartin Schwidefsky 16169c0e360SMartin Schwidefsky static inline int __cpacf_check_opcode(unsigned int opcode) 162c7d4d259SMartin Schwidefsky { 163c7d4d259SMartin Schwidefsky switch (opcode) { 164c7d4d259SMartin Schwidefsky case CPACF_KMAC: 165c7d4d259SMartin Schwidefsky case CPACF_KM: 166c7d4d259SMartin Schwidefsky case CPACF_KMC: 167c7d4d259SMartin Schwidefsky case CPACF_KIMD: 168c7d4d259SMartin Schwidefsky case CPACF_KLMD: 16969c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1701afd43e0SDavid Hildenbrand case CPACF_PCKMO: 17169c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1721afd43e0SDavid Hildenbrand case CPACF_KMF: 1731afd43e0SDavid Hildenbrand case CPACF_KMO: 174c7d4d259SMartin Schwidefsky case CPACF_PCC: 175c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 17669c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 177c7d4d259SMartin Schwidefsky case CPACF_PPNO: 17869c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 179c7d4d259SMartin Schwidefsky default: 180c7d4d259SMartin Schwidefsky BUG(); 181c7d4d259SMartin Schwidefsky } 18269c0e360SMartin Schwidefsky } 18369c0e360SMartin Schwidefsky 18469c0e360SMartin Schwidefsky static inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 18569c0e360SMartin Schwidefsky { 18669c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 18769c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 18869c0e360SMartin Schwidefsky return 1; 18969c0e360SMartin Schwidefsky } 19069c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 19169c0e360SMartin Schwidefsky return 0; 19269c0e360SMartin Schwidefsky } 19369c0e360SMartin Schwidefsky 19469c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 19569c0e360SMartin Schwidefsky { 19669c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 19769c0e360SMartin Schwidefsky } 19869c0e360SMartin Schwidefsky 19969c0e360SMartin Schwidefsky static inline int cpacf_query_func(unsigned int opcode, unsigned int func) 20069c0e360SMartin Schwidefsky { 20169c0e360SMartin Schwidefsky cpacf_mask_t mask; 20269c0e360SMartin Schwidefsky 20369c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 20469c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 20569c0e360SMartin Schwidefsky return 0; 206c7d4d259SMartin Schwidefsky } 207c7d4d259SMartin Schwidefsky 208c7d4d259SMartin Schwidefsky /** 209c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 210c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 211c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 212c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 213c7d4d259SMartin Schwidefsky * @src: address of source memory area 214c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 215c7d4d259SMartin Schwidefsky * 216c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 217c7d4d259SMartin Schwidefsky * encryption/decryption funcs 218c7d4d259SMartin Schwidefsky */ 219edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 220c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 221c7d4d259SMartin Schwidefsky { 222c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 223c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 224c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 225c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 226c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 227c7d4d259SMartin Schwidefsky 228c7d4d259SMartin Schwidefsky asm volatile( 229c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 230c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 231c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 232c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 233c7d4d259SMartin Schwidefsky : "cc", "memory"); 234c7d4d259SMartin Schwidefsky 235c7d4d259SMartin Schwidefsky return src_len - r3; 236c7d4d259SMartin Schwidefsky } 237c7d4d259SMartin Schwidefsky 238c7d4d259SMartin Schwidefsky /** 239c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 240c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_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_kmc(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_KMC) 263c7d4d259SMartin Schwidefsky : "cc", "memory"); 264c7d4d259SMartin Schwidefsky 265c7d4d259SMartin Schwidefsky return src_len - r3; 266c7d4d259SMartin Schwidefsky } 267c7d4d259SMartin Schwidefsky 268c7d4d259SMartin Schwidefsky /** 269c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 270c7d4d259SMartin Schwidefsky * instruction 271c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 272c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 273c7d4d259SMartin Schwidefsky * @src: address of source memory area 274c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 275c7d4d259SMartin Schwidefsky */ 2760177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 277c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 278c7d4d259SMartin Schwidefsky { 279c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 280c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 281c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 282c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 283c7d4d259SMartin Schwidefsky 284c7d4d259SMartin Schwidefsky asm volatile( 285c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 286c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 287c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 288c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 289c7d4d259SMartin Schwidefsky : "cc", "memory"); 290c7d4d259SMartin Schwidefsky } 291c7d4d259SMartin Schwidefsky 292c7d4d259SMartin Schwidefsky /** 293c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 294c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 295c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 296c7d4d259SMartin Schwidefsky * @src: address of source memory area 297c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 298c7d4d259SMartin Schwidefsky */ 2990177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 300c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 301c7d4d259SMartin Schwidefsky { 302c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 303c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 304c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 305c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 306c7d4d259SMartin Schwidefsky 307c7d4d259SMartin Schwidefsky asm volatile( 308c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 309c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 310c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 311c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 312c7d4d259SMartin Schwidefsky : "cc", "memory"); 313c7d4d259SMartin Schwidefsky } 314c7d4d259SMartin Schwidefsky 315c7d4d259SMartin Schwidefsky /** 316c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 317c7d4d259SMartin Schwidefsky * instruction 318c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 319c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 320c7d4d259SMartin Schwidefsky * @src: address of source memory area 321c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 322c7d4d259SMartin Schwidefsky * 323c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 324c7d4d259SMartin Schwidefsky */ 325edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 326c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 327c7d4d259SMartin Schwidefsky { 328c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 329c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 330c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 331c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 332c7d4d259SMartin Schwidefsky 333c7d4d259SMartin Schwidefsky asm volatile( 334c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 335c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 336c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 337c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 338c7d4d259SMartin Schwidefsky : "cc", "memory"); 339c7d4d259SMartin Schwidefsky 340c7d4d259SMartin Schwidefsky return src_len - r3; 341c7d4d259SMartin Schwidefsky } 342c7d4d259SMartin Schwidefsky 343c7d4d259SMartin Schwidefsky /** 344c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 345c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 346c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 347c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 348c7d4d259SMartin Schwidefsky * @src: address of source memory area 349c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 350c7d4d259SMartin Schwidefsky * @counter: address of counter value 351c7d4d259SMartin Schwidefsky * 352c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 353c7d4d259SMartin Schwidefsky * encryption/decryption funcs 354c7d4d259SMartin Schwidefsky */ 355edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 356c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 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 register unsigned long r4 asm("4") = (unsigned long) dest; 363c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 364c7d4d259SMartin Schwidefsky 365c7d4d259SMartin Schwidefsky asm volatile( 366c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 367c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 368c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 369c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 370c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 371c7d4d259SMartin Schwidefsky : "cc", "memory"); 372c7d4d259SMartin Schwidefsky 373c7d4d259SMartin Schwidefsky return src_len - r3; 374c7d4d259SMartin Schwidefsky } 375c7d4d259SMartin Schwidefsky 376c7d4d259SMartin Schwidefsky /** 377c7d4d259SMartin Schwidefsky * cpacf_ppno() - executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 378c7d4d259SMartin Schwidefsky * instruction 379c7d4d259SMartin Schwidefsky * @func: the function code passed to PPNO; see CPACF_PPNO_xxx defines 380c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 381c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 382c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 383c7d4d259SMartin Schwidefsky * @seed: address of seed data 384c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 385c7d4d259SMartin Schwidefsky */ 3860177db01SMartin Schwidefsky static inline void cpacf_ppno(unsigned long func, void *param, 387c7d4d259SMartin Schwidefsky u8 *dest, long dest_len, 388c7d4d259SMartin Schwidefsky const u8 *seed, long seed_len) 389c7d4d259SMartin Schwidefsky { 390c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 391c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 392c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 393c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 394c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 395c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 396c7d4d259SMartin Schwidefsky 397c7d4d259SMartin Schwidefsky asm volatile ( 398c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 399c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 400c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 401c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 402c7d4d259SMartin Schwidefsky [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PPNO) 403c7d4d259SMartin Schwidefsky : "cc", "memory"); 404c7d4d259SMartin Schwidefsky } 405c7d4d259SMartin Schwidefsky 406c7d4d259SMartin Schwidefsky /** 407c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 408c7d4d259SMartin Schwidefsky * instruction 409c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 410c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 411c7d4d259SMartin Schwidefsky */ 4120177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 413c7d4d259SMartin Schwidefsky { 414c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 415c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 416c7d4d259SMartin Schwidefsky 417c7d4d259SMartin Schwidefsky asm volatile( 418c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 419c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 420c7d4d259SMartin Schwidefsky : 421c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 422c7d4d259SMartin Schwidefsky : "cc", "memory"); 423c7d4d259SMartin Schwidefsky } 424c7d4d259SMartin Schwidefsky 42577606708SHarald Freudenberger /** 42677606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 42777606708SHarald Freudenberger * MANAGEMENT) instruction 42877606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 42977606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 43077606708SHarald Freudenberger * 43177606708SHarald Freudenberger * Returns 0. 43277606708SHarald Freudenberger */ 43377606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 43477606708SHarald Freudenberger { 43577606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 43677606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 43777606708SHarald Freudenberger 43877606708SHarald Freudenberger asm volatile( 43977606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 44077606708SHarald Freudenberger : 44177606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 44277606708SHarald Freudenberger : "cc", "memory"); 44377606708SHarald Freudenberger } 44477606708SHarald Freudenberger 445c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 446