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 */ 29c7d4d259SMartin Schwidefsky 30c7d4d259SMartin Schwidefsky /* 31*27937843SMartin Schwidefsky * En/decryption modifier bits 32edc63a37SMartin Schwidefsky */ 33*27937843SMartin Schwidefsky #define CPACF_ENCRYPT 0x00 34edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 35edc63a37SMartin Schwidefsky 36edc63a37SMartin Schwidefsky /* 37edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 38c7d4d259SMartin Schwidefsky */ 39c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 40edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 41edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 42edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 43edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 44edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 45edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 46*27937843SMartin Schwidefsky #define CPACF_KM_PAES_128 0x1a 47*27937843SMartin Schwidefsky #define CPACF_KM_PAES_192 0x1b 48*27937843SMartin Schwidefsky #define CPACF_KM_PAES_256 0x1c 49edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 50edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 51*27937843SMartin Schwidefsky #define CPACF_KM_PXTS_128 0x3a 52*27937843SMartin Schwidefsky #define CPACF_KM_PXTS_256 0x3c 53c7d4d259SMartin Schwidefsky 54c7d4d259SMartin Schwidefsky /* 55c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 56edc63a37SMartin Schwidefsky * instruction 57c7d4d259SMartin Schwidefsky */ 58c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 59edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 60edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 61edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 62edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 63edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 64edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 65*27937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 66*27937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 67*27937843SMartin Schwidefsky #define CPACF_KMC_PAES_256 0x1c 68c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 69c7d4d259SMartin Schwidefsky 70c7d4d259SMartin Schwidefsky /* 71c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 72edc63a37SMartin Schwidefsky * instruction 73c7d4d259SMartin Schwidefsky */ 74c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 75edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 76edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 77edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 78edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 79edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 80edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 81*27937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 82*27937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 83*27937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_256 0x1c 84c7d4d259SMartin Schwidefsky 85c7d4d259SMartin Schwidefsky /* 86c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 87edc63a37SMartin Schwidefsky * instruction 88c7d4d259SMartin Schwidefsky */ 89c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 90c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 91c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 92c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 93c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 94c7d4d259SMartin Schwidefsky 95c7d4d259SMartin Schwidefsky /* 96c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 97edc63a37SMartin Schwidefsky * instruction 98c7d4d259SMartin Schwidefsky */ 99c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 100c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 101c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 102c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 103c7d4d259SMartin Schwidefsky 104c7d4d259SMartin Schwidefsky /* 105c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 106edc63a37SMartin Schwidefsky * instruction 107c7d4d259SMartin Schwidefsky */ 108c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 109c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 110c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 111c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 112c7d4d259SMartin Schwidefsky 113c7d4d259SMartin Schwidefsky /* 11477606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 11577606708SHarald Freudenberger * instruction 11677606708SHarald Freudenberger */ 11777606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 11877606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 11977606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 12077606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 12177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 12277606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 12377606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 12477606708SHarald Freudenberger 12577606708SHarald Freudenberger /* 126c7d4d259SMartin Schwidefsky * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 127edc63a37SMartin Schwidefsky * instruction 128c7d4d259SMartin Schwidefsky */ 129c7d4d259SMartin Schwidefsky #define CPACF_PPNO_QUERY 0x00 130c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_GEN 0x03 131c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_SEED 0x83 132c7d4d259SMartin Schwidefsky 13369c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 13469c0e360SMartin Schwidefsky 135c7d4d259SMartin Schwidefsky /** 136c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 137c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 138c7d4d259SMartin Schwidefsky * @func: the function code to test for 139c7d4d259SMartin Schwidefsky * 140c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 141c7d4d259SMartin Schwidefsky * and checks if @func is available 142c7d4d259SMartin Schwidefsky * 143c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 144c7d4d259SMartin Schwidefsky */ 14569c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 146c7d4d259SMartin Schwidefsky { 147c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 14869c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 149c7d4d259SMartin Schwidefsky 150c7d4d259SMartin Schwidefsky asm volatile( 1511afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 152c7d4d259SMartin Schwidefsky /* Parameter registers are ignored, but may not be 0 */ 153c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,2,2,2,0\n" 154c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 15569c0e360SMartin Schwidefsky : "=m" (*mask) 156c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 157c7d4d259SMartin Schwidefsky : "cc"); 158c7d4d259SMartin Schwidefsky } 159c7d4d259SMartin Schwidefsky 16069c0e360SMartin Schwidefsky static inline int __cpacf_check_opcode(unsigned int opcode) 161c7d4d259SMartin Schwidefsky { 162c7d4d259SMartin Schwidefsky switch (opcode) { 163c7d4d259SMartin Schwidefsky case CPACF_KMAC: 164c7d4d259SMartin Schwidefsky case CPACF_KM: 165c7d4d259SMartin Schwidefsky case CPACF_KMC: 166c7d4d259SMartin Schwidefsky case CPACF_KIMD: 167c7d4d259SMartin Schwidefsky case CPACF_KLMD: 16869c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1691afd43e0SDavid Hildenbrand case CPACF_PCKMO: 17069c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1711afd43e0SDavid Hildenbrand case CPACF_KMF: 1721afd43e0SDavid Hildenbrand case CPACF_KMO: 173c7d4d259SMartin Schwidefsky case CPACF_PCC: 174c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 17569c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 176c7d4d259SMartin Schwidefsky case CPACF_PPNO: 17769c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 178c7d4d259SMartin Schwidefsky default: 179c7d4d259SMartin Schwidefsky BUG(); 180c7d4d259SMartin Schwidefsky } 18169c0e360SMartin Schwidefsky } 18269c0e360SMartin Schwidefsky 18369c0e360SMartin Schwidefsky static inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 18469c0e360SMartin Schwidefsky { 18569c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 18669c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 18769c0e360SMartin Schwidefsky return 1; 18869c0e360SMartin Schwidefsky } 18969c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 19069c0e360SMartin Schwidefsky return 0; 19169c0e360SMartin Schwidefsky } 19269c0e360SMartin Schwidefsky 19369c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 19469c0e360SMartin Schwidefsky { 19569c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 19669c0e360SMartin Schwidefsky } 19769c0e360SMartin Schwidefsky 19869c0e360SMartin Schwidefsky static inline int cpacf_query_func(unsigned int opcode, unsigned int func) 19969c0e360SMartin Schwidefsky { 20069c0e360SMartin Schwidefsky cpacf_mask_t mask; 20169c0e360SMartin Schwidefsky 20269c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 20369c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 20469c0e360SMartin Schwidefsky return 0; 205c7d4d259SMartin Schwidefsky } 206c7d4d259SMartin Schwidefsky 207c7d4d259SMartin Schwidefsky /** 208c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 209c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 210c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 211c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 212c7d4d259SMartin Schwidefsky * @src: address of source memory area 213c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 214c7d4d259SMartin Schwidefsky * 215c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 216c7d4d259SMartin Schwidefsky * encryption/decryption funcs 217c7d4d259SMartin Schwidefsky */ 218edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 219c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 220c7d4d259SMartin Schwidefsky { 221c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 222c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 223c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 224c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 225c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 226c7d4d259SMartin Schwidefsky 227c7d4d259SMartin Schwidefsky asm volatile( 228c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 229c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 230c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 231c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 232c7d4d259SMartin Schwidefsky : "cc", "memory"); 233c7d4d259SMartin Schwidefsky 234c7d4d259SMartin Schwidefsky return src_len - r3; 235c7d4d259SMartin Schwidefsky } 236c7d4d259SMartin Schwidefsky 237c7d4d259SMartin Schwidefsky /** 238c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 239c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 240c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 241c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 242c7d4d259SMartin Schwidefsky * @src: address of source memory area 243c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 244c7d4d259SMartin Schwidefsky * 245c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 246c7d4d259SMartin Schwidefsky * encryption/decryption funcs 247c7d4d259SMartin Schwidefsky */ 248edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 249c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 250c7d4d259SMartin Schwidefsky { 251c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 252c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 253c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 254c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 255c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 256c7d4d259SMartin Schwidefsky 257c7d4d259SMartin Schwidefsky asm volatile( 258c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 259c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 260c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 261c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 262c7d4d259SMartin Schwidefsky : "cc", "memory"); 263c7d4d259SMartin Schwidefsky 264c7d4d259SMartin Schwidefsky return src_len - r3; 265c7d4d259SMartin Schwidefsky } 266c7d4d259SMartin Schwidefsky 267c7d4d259SMartin Schwidefsky /** 268c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 269c7d4d259SMartin Schwidefsky * instruction 270c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 271c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 272c7d4d259SMartin Schwidefsky * @src: address of source memory area 273c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 274c7d4d259SMartin Schwidefsky */ 2750177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 276c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 277c7d4d259SMartin Schwidefsky { 278c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 279c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 280c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 281c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 282c7d4d259SMartin Schwidefsky 283c7d4d259SMartin Schwidefsky asm volatile( 284c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 285c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 286c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 287c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 288c7d4d259SMartin Schwidefsky : "cc", "memory"); 289c7d4d259SMartin Schwidefsky } 290c7d4d259SMartin Schwidefsky 291c7d4d259SMartin Schwidefsky /** 292c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 293c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 294c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 295c7d4d259SMartin Schwidefsky * @src: address of source memory area 296c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 297c7d4d259SMartin Schwidefsky */ 2980177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 299c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 300c7d4d259SMartin Schwidefsky { 301c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 302c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 303c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 304c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 305c7d4d259SMartin Schwidefsky 306c7d4d259SMartin Schwidefsky asm volatile( 307c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 308c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 309c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 310c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 311c7d4d259SMartin Schwidefsky : "cc", "memory"); 312c7d4d259SMartin Schwidefsky } 313c7d4d259SMartin Schwidefsky 314c7d4d259SMartin Schwidefsky /** 315c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 316c7d4d259SMartin Schwidefsky * instruction 317c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 318c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 319c7d4d259SMartin Schwidefsky * @src: address of source memory area 320c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 321c7d4d259SMartin Schwidefsky * 322c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 323c7d4d259SMartin Schwidefsky */ 324edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 325c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 326c7d4d259SMartin Schwidefsky { 327c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 328c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 329c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 330c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 331c7d4d259SMartin Schwidefsky 332c7d4d259SMartin Schwidefsky asm volatile( 333c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 334c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 335c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 336c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 337c7d4d259SMartin Schwidefsky : "cc", "memory"); 338c7d4d259SMartin Schwidefsky 339c7d4d259SMartin Schwidefsky return src_len - r3; 340c7d4d259SMartin Schwidefsky } 341c7d4d259SMartin Schwidefsky 342c7d4d259SMartin Schwidefsky /** 343c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 344c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 345c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 346c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 347c7d4d259SMartin Schwidefsky * @src: address of source memory area 348c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 349c7d4d259SMartin Schwidefsky * @counter: address of counter value 350c7d4d259SMartin Schwidefsky * 351c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 352c7d4d259SMartin Schwidefsky * encryption/decryption funcs 353c7d4d259SMartin Schwidefsky */ 354edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 355c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 356c7d4d259SMartin Schwidefsky { 357c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 358c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 359c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 360c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 361c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 362c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 363c7d4d259SMartin Schwidefsky 364c7d4d259SMartin Schwidefsky asm volatile( 365c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 366c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 367c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 368c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 369c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 370c7d4d259SMartin Schwidefsky : "cc", "memory"); 371c7d4d259SMartin Schwidefsky 372c7d4d259SMartin Schwidefsky return src_len - r3; 373c7d4d259SMartin Schwidefsky } 374c7d4d259SMartin Schwidefsky 375c7d4d259SMartin Schwidefsky /** 376c7d4d259SMartin Schwidefsky * cpacf_ppno() - executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 377c7d4d259SMartin Schwidefsky * instruction 378c7d4d259SMartin Schwidefsky * @func: the function code passed to PPNO; see CPACF_PPNO_xxx defines 379c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 380c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 381c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 382c7d4d259SMartin Schwidefsky * @seed: address of seed data 383c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 384c7d4d259SMartin Schwidefsky */ 3850177db01SMartin Schwidefsky static inline void cpacf_ppno(unsigned long func, void *param, 386c7d4d259SMartin Schwidefsky u8 *dest, long dest_len, 387c7d4d259SMartin Schwidefsky const u8 *seed, long seed_len) 388c7d4d259SMartin Schwidefsky { 389c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 390c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 391c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 392c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 393c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 394c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 395c7d4d259SMartin Schwidefsky 396c7d4d259SMartin Schwidefsky asm volatile ( 397c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 398c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 399c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 400c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 401c7d4d259SMartin Schwidefsky [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PPNO) 402c7d4d259SMartin Schwidefsky : "cc", "memory"); 403c7d4d259SMartin Schwidefsky } 404c7d4d259SMartin Schwidefsky 405c7d4d259SMartin Schwidefsky /** 406c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 407c7d4d259SMartin Schwidefsky * instruction 408c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 409c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 410c7d4d259SMartin Schwidefsky */ 4110177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 412c7d4d259SMartin Schwidefsky { 413c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 414c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 415c7d4d259SMartin Schwidefsky 416c7d4d259SMartin Schwidefsky asm volatile( 417c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 418c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 419c7d4d259SMartin Schwidefsky : 420c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 421c7d4d259SMartin Schwidefsky : "cc", "memory"); 422c7d4d259SMartin Schwidefsky } 423c7d4d259SMartin Schwidefsky 42477606708SHarald Freudenberger /** 42577606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 42677606708SHarald Freudenberger * MANAGEMENT) instruction 42777606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 42877606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 42977606708SHarald Freudenberger * 43077606708SHarald Freudenberger * Returns 0. 43177606708SHarald Freudenberger */ 43277606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 43377606708SHarald Freudenberger { 43477606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 43577606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 43677606708SHarald Freudenberger 43777606708SHarald Freudenberger asm volatile( 43877606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 43977606708SHarald Freudenberger : 44077606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 44177606708SHarald Freudenberger : "cc", "memory"); 44277606708SHarald Freudenberger } 44377606708SHarald Freudenberger 444c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 445