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 */ 28985a9d20SHarald Freudenberger #define CPACF_PRNO 0xb93c /* MSA5 */ 29c7d4d259SMartin Schwidefsky 30c7d4d259SMartin Schwidefsky /* 3127937843SMartin Schwidefsky * En/decryption modifier bits 32edc63a37SMartin Schwidefsky */ 3327937843SMartin 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 4627937843SMartin Schwidefsky #define CPACF_KM_PAES_128 0x1a 4727937843SMartin Schwidefsky #define CPACF_KM_PAES_192 0x1b 4827937843SMartin Schwidefsky #define CPACF_KM_PAES_256 0x1c 49edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 50edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 5127937843SMartin Schwidefsky #define CPACF_KM_PXTS_128 0x3a 5227937843SMartin 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 6527937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 6627937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 6727937843SMartin 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 8127937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 8227937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 8327937843SMartin 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 /* 126985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 127edc63a37SMartin Schwidefsky * instruction 128c7d4d259SMartin Schwidefsky */ 129985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 130985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 131985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 132*f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 133*f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 134c7d4d259SMartin Schwidefsky 13569c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 13669c0e360SMartin Schwidefsky 137c7d4d259SMartin Schwidefsky /** 138c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 139c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 140c7d4d259SMartin Schwidefsky * @func: the function code to test for 141c7d4d259SMartin Schwidefsky * 142c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 143c7d4d259SMartin Schwidefsky * and checks if @func is available 144c7d4d259SMartin Schwidefsky * 145c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 146c7d4d259SMartin Schwidefsky */ 14769c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 148c7d4d259SMartin Schwidefsky { 149c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 15069c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 151c7d4d259SMartin Schwidefsky 152c7d4d259SMartin Schwidefsky asm volatile( 1531afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 154c7d4d259SMartin Schwidefsky /* Parameter registers are ignored, but may not be 0 */ 155c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,2,2,2,0\n" 156c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 15769c0e360SMartin Schwidefsky : "=m" (*mask) 158c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 159c7d4d259SMartin Schwidefsky : "cc"); 160c7d4d259SMartin Schwidefsky } 161c7d4d259SMartin Schwidefsky 16269c0e360SMartin Schwidefsky static inline int __cpacf_check_opcode(unsigned int opcode) 163c7d4d259SMartin Schwidefsky { 164c7d4d259SMartin Schwidefsky switch (opcode) { 165c7d4d259SMartin Schwidefsky case CPACF_KMAC: 166c7d4d259SMartin Schwidefsky case CPACF_KM: 167c7d4d259SMartin Schwidefsky case CPACF_KMC: 168c7d4d259SMartin Schwidefsky case CPACF_KIMD: 169c7d4d259SMartin Schwidefsky case CPACF_KLMD: 17069c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1711afd43e0SDavid Hildenbrand case CPACF_PCKMO: 17269c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1731afd43e0SDavid Hildenbrand case CPACF_KMF: 1741afd43e0SDavid Hildenbrand case CPACF_KMO: 175c7d4d259SMartin Schwidefsky case CPACF_PCC: 176c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 17769c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 178985a9d20SHarald Freudenberger case CPACF_PRNO: 17969c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 180c7d4d259SMartin Schwidefsky default: 181c7d4d259SMartin Schwidefsky BUG(); 182c7d4d259SMartin Schwidefsky } 18369c0e360SMartin Schwidefsky } 18469c0e360SMartin Schwidefsky 18569c0e360SMartin Schwidefsky static inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 18669c0e360SMartin Schwidefsky { 18769c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 18869c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 18969c0e360SMartin Schwidefsky return 1; 19069c0e360SMartin Schwidefsky } 19169c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 19269c0e360SMartin Schwidefsky return 0; 19369c0e360SMartin Schwidefsky } 19469c0e360SMartin Schwidefsky 19569c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 19669c0e360SMartin Schwidefsky { 19769c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 19869c0e360SMartin Schwidefsky } 19969c0e360SMartin Schwidefsky 20069c0e360SMartin Schwidefsky static inline int cpacf_query_func(unsigned int opcode, unsigned int func) 20169c0e360SMartin Schwidefsky { 20269c0e360SMartin Schwidefsky cpacf_mask_t mask; 20369c0e360SMartin Schwidefsky 20469c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 20569c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 20669c0e360SMartin Schwidefsky return 0; 207c7d4d259SMartin Schwidefsky } 208c7d4d259SMartin Schwidefsky 209c7d4d259SMartin Schwidefsky /** 210c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 211c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 212c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 213c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 214c7d4d259SMartin Schwidefsky * @src: address of source memory area 215c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 216c7d4d259SMartin Schwidefsky * 217c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 218c7d4d259SMartin Schwidefsky * encryption/decryption funcs 219c7d4d259SMartin Schwidefsky */ 220edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 221c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 222c7d4d259SMartin Schwidefsky { 223c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 224c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 225c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 226c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 227c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 228c7d4d259SMartin Schwidefsky 229c7d4d259SMartin Schwidefsky asm volatile( 230c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 231c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 232c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 233c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 234c7d4d259SMartin Schwidefsky : "cc", "memory"); 235c7d4d259SMartin Schwidefsky 236c7d4d259SMartin Schwidefsky return src_len - r3; 237c7d4d259SMartin Schwidefsky } 238c7d4d259SMartin Schwidefsky 239c7d4d259SMartin Schwidefsky /** 240c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 241c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 242c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 243c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 244c7d4d259SMartin Schwidefsky * @src: address of source memory area 245c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 246c7d4d259SMartin Schwidefsky * 247c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 248c7d4d259SMartin Schwidefsky * encryption/decryption funcs 249c7d4d259SMartin Schwidefsky */ 250edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 251c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 252c7d4d259SMartin Schwidefsky { 253c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 254c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 255c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 256c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 257c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 258c7d4d259SMartin Schwidefsky 259c7d4d259SMartin Schwidefsky asm volatile( 260c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 261c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 262c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 263c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 264c7d4d259SMartin Schwidefsky : "cc", "memory"); 265c7d4d259SMartin Schwidefsky 266c7d4d259SMartin Schwidefsky return src_len - r3; 267c7d4d259SMartin Schwidefsky } 268c7d4d259SMartin Schwidefsky 269c7d4d259SMartin Schwidefsky /** 270c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 271c7d4d259SMartin Schwidefsky * instruction 272c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 273c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 274c7d4d259SMartin Schwidefsky * @src: address of source memory area 275c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 276c7d4d259SMartin Schwidefsky */ 2770177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 278c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 279c7d4d259SMartin Schwidefsky { 280c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 281c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 282c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 283c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 284c7d4d259SMartin Schwidefsky 285c7d4d259SMartin Schwidefsky asm volatile( 286c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 287c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 288c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 289c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 290c7d4d259SMartin Schwidefsky : "cc", "memory"); 291c7d4d259SMartin Schwidefsky } 292c7d4d259SMartin Schwidefsky 293c7d4d259SMartin Schwidefsky /** 294c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 295c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 296c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 297c7d4d259SMartin Schwidefsky * @src: address of source memory area 298c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 299c7d4d259SMartin Schwidefsky */ 3000177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 301c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 302c7d4d259SMartin Schwidefsky { 303c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 304c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 305c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 306c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 307c7d4d259SMartin Schwidefsky 308c7d4d259SMartin Schwidefsky asm volatile( 309c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 310c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 311c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 312c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 313c7d4d259SMartin Schwidefsky : "cc", "memory"); 314c7d4d259SMartin Schwidefsky } 315c7d4d259SMartin Schwidefsky 316c7d4d259SMartin Schwidefsky /** 317c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 318c7d4d259SMartin Schwidefsky * instruction 319c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 320c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 321c7d4d259SMartin Schwidefsky * @src: address of source memory area 322c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 323c7d4d259SMartin Schwidefsky * 324c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 325c7d4d259SMartin Schwidefsky */ 326edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 327c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 328c7d4d259SMartin Schwidefsky { 329c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 330c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 331c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 332c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 333c7d4d259SMartin Schwidefsky 334c7d4d259SMartin Schwidefsky asm volatile( 335c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 336c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 337c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 338c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 339c7d4d259SMartin Schwidefsky : "cc", "memory"); 340c7d4d259SMartin Schwidefsky 341c7d4d259SMartin Schwidefsky return src_len - r3; 342c7d4d259SMartin Schwidefsky } 343c7d4d259SMartin Schwidefsky 344c7d4d259SMartin Schwidefsky /** 345c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 346c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 347c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 348c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 349c7d4d259SMartin Schwidefsky * @src: address of source memory area 350c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 351c7d4d259SMartin Schwidefsky * @counter: address of counter value 352c7d4d259SMartin Schwidefsky * 353c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 354c7d4d259SMartin Schwidefsky * encryption/decryption funcs 355c7d4d259SMartin Schwidefsky */ 356edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 357c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 358c7d4d259SMartin Schwidefsky { 359c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 360c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 361c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 362c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 363c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 364c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 365c7d4d259SMartin Schwidefsky 366c7d4d259SMartin Schwidefsky asm volatile( 367c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 368c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 369c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 370c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 371c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 372c7d4d259SMartin Schwidefsky : "cc", "memory"); 373c7d4d259SMartin Schwidefsky 374c7d4d259SMartin Schwidefsky return src_len - r3; 375c7d4d259SMartin Schwidefsky } 376c7d4d259SMartin Schwidefsky 377c7d4d259SMartin Schwidefsky /** 378985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 379c7d4d259SMartin Schwidefsky * instruction 380985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 381c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 382c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 383c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 384c7d4d259SMartin Schwidefsky * @seed: address of seed data 385c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 386c7d4d259SMartin Schwidefsky */ 387985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 388*f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 389*f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 390c7d4d259SMartin Schwidefsky { 391c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 392c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 393c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 394c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 395c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 396c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 397c7d4d259SMartin Schwidefsky 398c7d4d259SMartin Schwidefsky asm volatile ( 399c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 400c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 401c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 402c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 403985a9d20SHarald Freudenberger [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PRNO) 404c7d4d259SMartin Schwidefsky : "cc", "memory"); 405c7d4d259SMartin Schwidefsky } 406c7d4d259SMartin Schwidefsky 407c7d4d259SMartin Schwidefsky /** 408*f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 409*f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 410*f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 411*f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 412*f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 413*f75fa65dSHarald Freudenberger */ 414*f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 415*f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 416*f75fa65dSHarald Freudenberger { 417*f75fa65dSHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) CPACF_PRNO_TRNG; 418*f75fa65dSHarald Freudenberger register unsigned long r2 asm("2") = (unsigned long) ucbuf; 419*f75fa65dSHarald Freudenberger register unsigned long r3 asm("3") = (unsigned long) ucbuf_len; 420*f75fa65dSHarald Freudenberger register unsigned long r4 asm("4") = (unsigned long) cbuf; 421*f75fa65dSHarald Freudenberger register unsigned long r5 asm("5") = (unsigned long) cbuf_len; 422*f75fa65dSHarald Freudenberger 423*f75fa65dSHarald Freudenberger asm volatile ( 424*f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 425*f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 426*f75fa65dSHarald Freudenberger : [ucbuf] "+a" (r2), [ucbuflen] "+d" (r3), 427*f75fa65dSHarald Freudenberger [cbuf] "+a" (r4), [cbuflen] "+d" (r5) 428*f75fa65dSHarald Freudenberger : [fc] "d" (r0), [opc] "i" (CPACF_PRNO) 429*f75fa65dSHarald Freudenberger : "cc", "memory"); 430*f75fa65dSHarald Freudenberger } 431*f75fa65dSHarald Freudenberger 432*f75fa65dSHarald Freudenberger /** 433c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 434c7d4d259SMartin Schwidefsky * instruction 435c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 436c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 437c7d4d259SMartin Schwidefsky */ 4380177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 439c7d4d259SMartin Schwidefsky { 440c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 441c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 442c7d4d259SMartin Schwidefsky 443c7d4d259SMartin Schwidefsky asm volatile( 444c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 445c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 446c7d4d259SMartin Schwidefsky : 447c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 448c7d4d259SMartin Schwidefsky : "cc", "memory"); 449c7d4d259SMartin Schwidefsky } 450c7d4d259SMartin Schwidefsky 45177606708SHarald Freudenberger /** 45277606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 45377606708SHarald Freudenberger * MANAGEMENT) instruction 45477606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 45577606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 45677606708SHarald Freudenberger * 45777606708SHarald Freudenberger * Returns 0. 45877606708SHarald Freudenberger */ 45977606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 46077606708SHarald Freudenberger { 46177606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 46277606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 46377606708SHarald Freudenberger 46477606708SHarald Freudenberger asm volatile( 46577606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 46677606708SHarald Freudenberger : 46777606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 46877606708SHarald Freudenberger : "cc", "memory"); 46977606708SHarald Freudenberger } 47077606708SHarald Freudenberger 471c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 472