1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2c7d4d259SMartin Schwidefsky /* 3c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 4c7d4d259SMartin Schwidefsky * 5eecd49c4SPatrick Steuer * Copyright IBM Corp. 2003, 2017 6c7d4d259SMartin Schwidefsky * Author(s): Thomas Spatzier 7c7d4d259SMartin Schwidefsky * Jan Glauber 8c7d4d259SMartin Schwidefsky * Harald Freudenberger (freude@de.ibm.com) 9c7d4d259SMartin Schwidefsky * Martin Schwidefsky <schwidefsky@de.ibm.com> 10c7d4d259SMartin Schwidefsky */ 11c7d4d259SMartin Schwidefsky #ifndef _ASM_S390_CPACF_H 12c7d4d259SMartin Schwidefsky #define _ASM_S390_CPACF_H 13c7d4d259SMartin Schwidefsky 14c7d4d259SMartin Schwidefsky #include <asm/facility.h> 15c7d4d259SMartin Schwidefsky 16c7d4d259SMartin Schwidefsky /* 17c7d4d259SMartin Schwidefsky * Instruction opcodes for the CPACF instructions 18c7d4d259SMartin Schwidefsky */ 19c7d4d259SMartin Schwidefsky #define CPACF_KMAC 0xb91e /* MSA */ 20c7d4d259SMartin Schwidefsky #define CPACF_KM 0xb92e /* MSA */ 21c7d4d259SMartin Schwidefsky #define CPACF_KMC 0xb92f /* MSA */ 22c7d4d259SMartin Schwidefsky #define CPACF_KIMD 0xb93e /* MSA */ 23c7d4d259SMartin Schwidefsky #define CPACF_KLMD 0xb93f /* MSA */ 241afd43e0SDavid Hildenbrand #define CPACF_PCKMO 0xb928 /* MSA3 */ 251afd43e0SDavid Hildenbrand #define CPACF_KMF 0xb92a /* MSA4 */ 261afd43e0SDavid Hildenbrand #define CPACF_KMO 0xb92b /* MSA4 */ 27c7d4d259SMartin Schwidefsky #define CPACF_PCC 0xb92c /* MSA4 */ 28c7d4d259SMartin Schwidefsky #define CPACF_KMCTR 0xb92d /* MSA4 */ 29985a9d20SHarald Freudenberger #define CPACF_PRNO 0xb93c /* MSA5 */ 30152c1c8dSJason J. Herne #define CPACF_KMA 0xb929 /* MSA8 */ 3113209ad0SChristian Borntraeger #define CPACF_KDSA 0xb93a /* MSA9 */ 32c7d4d259SMartin Schwidefsky 33c7d4d259SMartin Schwidefsky /* 3427937843SMartin Schwidefsky * En/decryption modifier bits 35edc63a37SMartin Schwidefsky */ 3627937843SMartin Schwidefsky #define CPACF_ENCRYPT 0x00 37edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 38edc63a37SMartin Schwidefsky 39edc63a37SMartin Schwidefsky /* 40edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 41c7d4d259SMartin Schwidefsky */ 42c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 43edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 44edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 45edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 46edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 47edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 48edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 4927937843SMartin Schwidefsky #define CPACF_KM_PAES_128 0x1a 5027937843SMartin Schwidefsky #define CPACF_KM_PAES_192 0x1b 5127937843SMartin Schwidefsky #define CPACF_KM_PAES_256 0x1c 52edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 53edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 5427937843SMartin Schwidefsky #define CPACF_KM_PXTS_128 0x3a 5527937843SMartin Schwidefsky #define CPACF_KM_PXTS_256 0x3c 56c7d4d259SMartin Schwidefsky 57c7d4d259SMartin Schwidefsky /* 58c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 59edc63a37SMartin Schwidefsky * instruction 60c7d4d259SMartin Schwidefsky */ 61c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 62edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 63edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 64edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 65edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 66edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 67edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 6827937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 6927937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 7027937843SMartin Schwidefsky #define CPACF_KMC_PAES_256 0x1c 71c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 72c7d4d259SMartin Schwidefsky 73c7d4d259SMartin Schwidefsky /* 74c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 75edc63a37SMartin Schwidefsky * instruction 76c7d4d259SMartin Schwidefsky */ 77c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 78edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 79edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 80edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 81edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 82edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 83edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 8427937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 8527937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 8627937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_256 0x1c 87c7d4d259SMartin Schwidefsky 88c7d4d259SMartin Schwidefsky /* 89c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 90edc63a37SMartin Schwidefsky * instruction 91c7d4d259SMartin Schwidefsky */ 92c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 93c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 94c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 95c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 96c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 97c7d4d259SMartin Schwidefsky 98c7d4d259SMartin Schwidefsky /* 99c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 100edc63a37SMartin Schwidefsky * instruction 101c7d4d259SMartin Schwidefsky */ 102c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 103c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 104c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 105c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 106c7d4d259SMartin Schwidefsky 107c7d4d259SMartin Schwidefsky /* 108c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 109edc63a37SMartin Schwidefsky * instruction 110c7d4d259SMartin Schwidefsky */ 111c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 112c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 113c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 114c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 115c7d4d259SMartin Schwidefsky 116c7d4d259SMartin Schwidefsky /* 11777606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 11877606708SHarald Freudenberger * instruction 11977606708SHarald Freudenberger */ 12077606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 12177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 12277606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 12377606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 12477606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 12577606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 12677606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 12777606708SHarald Freudenberger 12877606708SHarald Freudenberger /* 129985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 130edc63a37SMartin Schwidefsky * instruction 131c7d4d259SMartin Schwidefsky */ 132985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 133985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 134985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 135f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 136f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 137c7d4d259SMartin Schwidefsky 138eecd49c4SPatrick Steuer /* 139eecd49c4SPatrick Steuer * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 140eecd49c4SPatrick Steuer * instruction 141eecd49c4SPatrick Steuer */ 142eecd49c4SPatrick Steuer #define CPACF_KMA_QUERY 0x00 143eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_128 0x12 144eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_192 0x13 145eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_256 0x14 146eecd49c4SPatrick Steuer 147eecd49c4SPatrick Steuer /* 148eecd49c4SPatrick Steuer * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction 149eecd49c4SPatrick Steuer */ 150eecd49c4SPatrick Steuer #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */ 151eecd49c4SPatrick Steuer #define CPACF_KMA_LAAD 0x200 /* Last-AAD */ 152eecd49c4SPatrick Steuer #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */ 153eecd49c4SPatrick Steuer 15469c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 15569c0e360SMartin Schwidefsky 156c7d4d259SMartin Schwidefsky /** 157c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 158c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 159c7d4d259SMartin Schwidefsky * @func: the function code to test for 160c7d4d259SMartin Schwidefsky * 161c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 162c7d4d259SMartin Schwidefsky * and checks if @func is available 163c7d4d259SMartin Schwidefsky * 164c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 165c7d4d259SMartin Schwidefsky */ 16669c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 167c7d4d259SMartin Schwidefsky { 168c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 16969c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 170c7d4d259SMartin Schwidefsky 171c7d4d259SMartin Schwidefsky asm volatile( 1721afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 173b112a2dfSJason J. Herne /* Parameter regs are ignored, but must be nonzero and unique */ 174b112a2dfSJason J. Herne "0: .insn rrf,%[opc] << 16,2,4,6,0\n" 175c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 17669c0e360SMartin Schwidefsky : "=m" (*mask) 177c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 178c7d4d259SMartin Schwidefsky : "cc"); 179c7d4d259SMartin Schwidefsky } 180c7d4d259SMartin Schwidefsky 181*d83623c5SMasahiro Yamada static __always_inline int __cpacf_check_opcode(unsigned int opcode) 182c7d4d259SMartin Schwidefsky { 183c7d4d259SMartin Schwidefsky switch (opcode) { 184c7d4d259SMartin Schwidefsky case CPACF_KMAC: 185c7d4d259SMartin Schwidefsky case CPACF_KM: 186c7d4d259SMartin Schwidefsky case CPACF_KMC: 187c7d4d259SMartin Schwidefsky case CPACF_KIMD: 188c7d4d259SMartin Schwidefsky case CPACF_KLMD: 18969c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1901afd43e0SDavid Hildenbrand case CPACF_PCKMO: 19169c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1921afd43e0SDavid Hildenbrand case CPACF_KMF: 1931afd43e0SDavid Hildenbrand case CPACF_KMO: 194c7d4d259SMartin Schwidefsky case CPACF_PCC: 195c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 19669c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 197985a9d20SHarald Freudenberger case CPACF_PRNO: 19869c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 199eecd49c4SPatrick Steuer case CPACF_KMA: 200eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 201c7d4d259SMartin Schwidefsky default: 202c7d4d259SMartin Schwidefsky BUG(); 203c7d4d259SMartin Schwidefsky } 20469c0e360SMartin Schwidefsky } 20569c0e360SMartin Schwidefsky 206e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 20769c0e360SMartin Schwidefsky { 20869c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 20969c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 21069c0e360SMartin Schwidefsky return 1; 21169c0e360SMartin Schwidefsky } 21269c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 21369c0e360SMartin Schwidefsky return 0; 21469c0e360SMartin Schwidefsky } 21569c0e360SMartin Schwidefsky 21669c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 21769c0e360SMartin Schwidefsky { 21869c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 21969c0e360SMartin Schwidefsky } 22069c0e360SMartin Schwidefsky 221*d83623c5SMasahiro Yamada static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func) 22269c0e360SMartin Schwidefsky { 22369c0e360SMartin Schwidefsky cpacf_mask_t mask; 22469c0e360SMartin Schwidefsky 22569c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 22669c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 22769c0e360SMartin Schwidefsky return 0; 228c7d4d259SMartin Schwidefsky } 229c7d4d259SMartin Schwidefsky 230c7d4d259SMartin Schwidefsky /** 231c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 232c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 233c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 234c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 235c7d4d259SMartin Schwidefsky * @src: address of source memory area 236c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 237c7d4d259SMartin Schwidefsky * 238c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 239c7d4d259SMartin Schwidefsky * encryption/decryption funcs 240c7d4d259SMartin Schwidefsky */ 241edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 242c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 243c7d4d259SMartin Schwidefsky { 244c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 245c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 246c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 247c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 248c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 249c7d4d259SMartin Schwidefsky 250c7d4d259SMartin Schwidefsky asm volatile( 251c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 252c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 253c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 254c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 255c7d4d259SMartin Schwidefsky : "cc", "memory"); 256c7d4d259SMartin Schwidefsky 257c7d4d259SMartin Schwidefsky return src_len - r3; 258c7d4d259SMartin Schwidefsky } 259c7d4d259SMartin Schwidefsky 260c7d4d259SMartin Schwidefsky /** 261c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 262c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 263c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 264c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 265c7d4d259SMartin Schwidefsky * @src: address of source memory area 266c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 267c7d4d259SMartin Schwidefsky * 268c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 269c7d4d259SMartin Schwidefsky * encryption/decryption funcs 270c7d4d259SMartin Schwidefsky */ 271edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 272c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 273c7d4d259SMartin Schwidefsky { 274c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 275c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 276c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 277c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 278c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 279c7d4d259SMartin Schwidefsky 280c7d4d259SMartin Schwidefsky asm volatile( 281c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 282c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 283c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 284c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 285c7d4d259SMartin Schwidefsky : "cc", "memory"); 286c7d4d259SMartin Schwidefsky 287c7d4d259SMartin Schwidefsky return src_len - r3; 288c7d4d259SMartin Schwidefsky } 289c7d4d259SMartin Schwidefsky 290c7d4d259SMartin Schwidefsky /** 291c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 292c7d4d259SMartin Schwidefsky * instruction 293c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_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_kimd(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_KIMD) 311c7d4d259SMartin Schwidefsky : "cc", "memory"); 312c7d4d259SMartin Schwidefsky } 313c7d4d259SMartin Schwidefsky 314c7d4d259SMartin Schwidefsky /** 315c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 316c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 317c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 318c7d4d259SMartin Schwidefsky * @src: address of source memory area 319c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 320c7d4d259SMartin Schwidefsky */ 3210177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 322c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 323c7d4d259SMartin Schwidefsky { 324c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 325c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 326c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 327c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 328c7d4d259SMartin Schwidefsky 329c7d4d259SMartin Schwidefsky asm volatile( 330c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 331c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 332c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 333c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 334c7d4d259SMartin Schwidefsky : "cc", "memory"); 335c7d4d259SMartin Schwidefsky } 336c7d4d259SMartin Schwidefsky 337c7d4d259SMartin Schwidefsky /** 338c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 339c7d4d259SMartin Schwidefsky * instruction 340c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 341c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 342c7d4d259SMartin Schwidefsky * @src: address of source memory area 343c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 344c7d4d259SMartin Schwidefsky * 345c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 346c7d4d259SMartin Schwidefsky */ 347edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 348c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 349c7d4d259SMartin Schwidefsky { 350c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 351c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 352c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 353c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 354c7d4d259SMartin Schwidefsky 355c7d4d259SMartin Schwidefsky asm volatile( 356c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 357c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 358c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 359c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 360c7d4d259SMartin Schwidefsky : "cc", "memory"); 361c7d4d259SMartin Schwidefsky 362c7d4d259SMartin Schwidefsky return src_len - r3; 363c7d4d259SMartin Schwidefsky } 364c7d4d259SMartin Schwidefsky 365c7d4d259SMartin Schwidefsky /** 366c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 367c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 368c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 369c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 370c7d4d259SMartin Schwidefsky * @src: address of source memory area 371c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 372c7d4d259SMartin Schwidefsky * @counter: address of counter value 373c7d4d259SMartin Schwidefsky * 374c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 375c7d4d259SMartin Schwidefsky * encryption/decryption funcs 376c7d4d259SMartin Schwidefsky */ 377edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 378c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 379c7d4d259SMartin Schwidefsky { 380c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 381c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 382c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 383c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 384c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 385c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 386c7d4d259SMartin Schwidefsky 387c7d4d259SMartin Schwidefsky asm volatile( 388c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 389c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 390c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 391c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 392c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 393c7d4d259SMartin Schwidefsky : "cc", "memory"); 394c7d4d259SMartin Schwidefsky 395c7d4d259SMartin Schwidefsky return src_len - r3; 396c7d4d259SMartin Schwidefsky } 397c7d4d259SMartin Schwidefsky 398c7d4d259SMartin Schwidefsky /** 399985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 400c7d4d259SMartin Schwidefsky * instruction 401985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 402c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 403c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 404c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 405c7d4d259SMartin Schwidefsky * @seed: address of seed data 406c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 407c7d4d259SMartin Schwidefsky */ 408985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 409f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 410f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 411c7d4d259SMartin Schwidefsky { 412c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 413c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 414c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 415c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 416c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 417c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 418c7d4d259SMartin Schwidefsky 419c7d4d259SMartin Schwidefsky asm volatile ( 420c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 421c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 422c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 423c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 424985a9d20SHarald Freudenberger [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PRNO) 425c7d4d259SMartin Schwidefsky : "cc", "memory"); 426c7d4d259SMartin Schwidefsky } 427c7d4d259SMartin Schwidefsky 428c7d4d259SMartin Schwidefsky /** 429f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 430f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 431f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 432f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 433f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 434f75fa65dSHarald Freudenberger */ 435f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 436f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 437f75fa65dSHarald Freudenberger { 438f75fa65dSHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) CPACF_PRNO_TRNG; 439f75fa65dSHarald Freudenberger register unsigned long r2 asm("2") = (unsigned long) ucbuf; 440f75fa65dSHarald Freudenberger register unsigned long r3 asm("3") = (unsigned long) ucbuf_len; 441f75fa65dSHarald Freudenberger register unsigned long r4 asm("4") = (unsigned long) cbuf; 442f75fa65dSHarald Freudenberger register unsigned long r5 asm("5") = (unsigned long) cbuf_len; 443f75fa65dSHarald Freudenberger 444f75fa65dSHarald Freudenberger asm volatile ( 445f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 446f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 447f75fa65dSHarald Freudenberger : [ucbuf] "+a" (r2), [ucbuflen] "+d" (r3), 448f75fa65dSHarald Freudenberger [cbuf] "+a" (r4), [cbuflen] "+d" (r5) 449f75fa65dSHarald Freudenberger : [fc] "d" (r0), [opc] "i" (CPACF_PRNO) 450f75fa65dSHarald Freudenberger : "cc", "memory"); 451f75fa65dSHarald Freudenberger } 452f75fa65dSHarald Freudenberger 453f75fa65dSHarald Freudenberger /** 454c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 455c7d4d259SMartin Schwidefsky * instruction 456c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 457c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 458c7d4d259SMartin Schwidefsky */ 4590177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 460c7d4d259SMartin Schwidefsky { 461c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 462c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 463c7d4d259SMartin Schwidefsky 464c7d4d259SMartin Schwidefsky asm volatile( 465c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 466c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 467c7d4d259SMartin Schwidefsky : 468c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 469c7d4d259SMartin Schwidefsky : "cc", "memory"); 470c7d4d259SMartin Schwidefsky } 471c7d4d259SMartin Schwidefsky 47277606708SHarald Freudenberger /** 47377606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 47477606708SHarald Freudenberger * MANAGEMENT) instruction 47577606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 47677606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 47777606708SHarald Freudenberger * 47877606708SHarald Freudenberger * Returns 0. 47977606708SHarald Freudenberger */ 48077606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 48177606708SHarald Freudenberger { 48277606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 48377606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 48477606708SHarald Freudenberger 48577606708SHarald Freudenberger asm volatile( 48677606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 48777606708SHarald Freudenberger : 48877606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 48977606708SHarald Freudenberger : "cc", "memory"); 49077606708SHarald Freudenberger } 49177606708SHarald Freudenberger 492eecd49c4SPatrick Steuer /** 493eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 494eecd49c4SPatrick Steuer * instruction 495eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 496eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 497eecd49c4SPatrick Steuer * @dest: address of destination memory area 498eecd49c4SPatrick Steuer * @src: address of source memory area 499eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 500eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 501eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 502eecd49c4SPatrick Steuer */ 503eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 504eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 505eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 506eecd49c4SPatrick Steuer { 507eecd49c4SPatrick Steuer register unsigned long r0 asm("0") = (unsigned long) func; 508eecd49c4SPatrick Steuer register unsigned long r1 asm("1") = (unsigned long) param; 509eecd49c4SPatrick Steuer register unsigned long r2 asm("2") = (unsigned long) src; 510eecd49c4SPatrick Steuer register unsigned long r3 asm("3") = (unsigned long) src_len; 511eecd49c4SPatrick Steuer register unsigned long r4 asm("4") = (unsigned long) aad; 512eecd49c4SPatrick Steuer register unsigned long r5 asm("5") = (unsigned long) aad_len; 513eecd49c4SPatrick Steuer register unsigned long r6 asm("6") = (unsigned long) dest; 514eecd49c4SPatrick Steuer 515eecd49c4SPatrick Steuer asm volatile( 516eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 517eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 518eecd49c4SPatrick Steuer : [dst] "+a" (r6), [src] "+a" (r2), [slen] "+d" (r3), 519eecd49c4SPatrick Steuer [aad] "+a" (r4), [alen] "+d" (r5) 520eecd49c4SPatrick Steuer : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMA) 521eecd49c4SPatrick Steuer : "cc", "memory"); 522eecd49c4SPatrick Steuer } 523eecd49c4SPatrick Steuer 524c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 525