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 */ 23*1afd43e0SDavid Hildenbrand #define CPACF_PCKMO 0xb928 /* MSA3 */ 24*1afd43e0SDavid Hildenbrand #define CPACF_KMF 0xb92a /* MSA4 */ 25*1afd43e0SDavid 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 /* 31c7d4d259SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) 32c7d4d259SMartin Schwidefsky * instruction (0x80 is the decipher modifier bit) 33c7d4d259SMartin Schwidefsky */ 34c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 35c7d4d259SMartin Schwidefsky #define CPACF_KM_DEA_ENC 0x01 36c7d4d259SMartin Schwidefsky #define CPACF_KM_DEA_DEC 0x81 37c7d4d259SMartin Schwidefsky #define CPACF_KM_TDEA_128_ENC 0x02 38c7d4d259SMartin Schwidefsky #define CPACF_KM_TDEA_128_DEC 0x82 39c7d4d259SMartin Schwidefsky #define CPACF_KM_TDEA_192_ENC 0x03 40c7d4d259SMartin Schwidefsky #define CPACF_KM_TDEA_192_DEC 0x83 41c7d4d259SMartin Schwidefsky #define CPACF_KM_AES_128_ENC 0x12 42c7d4d259SMartin Schwidefsky #define CPACF_KM_AES_128_DEC 0x92 43c7d4d259SMartin Schwidefsky #define CPACF_KM_AES_192_ENC 0x13 44c7d4d259SMartin Schwidefsky #define CPACF_KM_AES_192_DEC 0x93 45c7d4d259SMartin Schwidefsky #define CPACF_KM_AES_256_ENC 0x14 46c7d4d259SMartin Schwidefsky #define CPACF_KM_AES_256_DEC 0x94 47c7d4d259SMartin Schwidefsky #define CPACF_KM_XTS_128_ENC 0x32 48c7d4d259SMartin Schwidefsky #define CPACF_KM_XTS_128_DEC 0xb2 49c7d4d259SMartin Schwidefsky #define CPACF_KM_XTS_256_ENC 0x34 50c7d4d259SMartin Schwidefsky #define CPACF_KM_XTS_256_DEC 0xb4 51c7d4d259SMartin Schwidefsky 52c7d4d259SMartin Schwidefsky /* 53c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 54c7d4d259SMartin Schwidefsky * instruction (0x80 is the decipher modifier bit) 55c7d4d259SMartin Schwidefsky */ 56c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 57c7d4d259SMartin Schwidefsky #define CPACF_KMC_DEA_ENC 0x01 58c7d4d259SMartin Schwidefsky #define CPACF_KMC_DEA_DEC 0x81 59c7d4d259SMartin Schwidefsky #define CPACF_KMC_TDEA_128_ENC 0x02 60c7d4d259SMartin Schwidefsky #define CPACF_KMC_TDEA_128_DEC 0x82 61c7d4d259SMartin Schwidefsky #define CPACF_KMC_TDEA_192_ENC 0x03 62c7d4d259SMartin Schwidefsky #define CPACF_KMC_TDEA_192_DEC 0x83 63c7d4d259SMartin Schwidefsky #define CPACF_KMC_AES_128_ENC 0x12 64c7d4d259SMartin Schwidefsky #define CPACF_KMC_AES_128_DEC 0x92 65c7d4d259SMartin Schwidefsky #define CPACF_KMC_AES_192_ENC 0x13 66c7d4d259SMartin Schwidefsky #define CPACF_KMC_AES_192_DEC 0x93 67c7d4d259SMartin Schwidefsky #define CPACF_KMC_AES_256_ENC 0x14 68c7d4d259SMartin Schwidefsky #define CPACF_KMC_AES_256_DEC 0x94 69c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 70c7d4d259SMartin Schwidefsky 71c7d4d259SMartin Schwidefsky /* 72c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 73c7d4d259SMartin Schwidefsky * instruction (0x80 is the decipher modifier bit) 74c7d4d259SMartin Schwidefsky */ 75c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 76c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_DEA_ENC 0x01 77c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_DEA_DEC 0x81 78c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128_ENC 0x02 79c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128_DEC 0x82 80c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192_ENC 0x03 81c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192_DEC 0x83 82c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_AES_128_ENC 0x12 83c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_AES_128_DEC 0x92 84c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_AES_192_ENC 0x13 85c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_AES_192_DEC 0x93 86c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_AES_256_ENC 0x14 87c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_AES_256_DEC 0x94 88c7d4d259SMartin Schwidefsky 89c7d4d259SMartin Schwidefsky /* 90c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 91c7d4d259SMartin Schwidefsky * instruction (0x80 is the decipher modifier bit) 92c7d4d259SMartin Schwidefsky */ 93c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 94c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 95c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 96c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 97c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 98c7d4d259SMartin Schwidefsky 99c7d4d259SMartin Schwidefsky /* 100c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 101c7d4d259SMartin Schwidefsky * instruction (0x80 is the decipher modifier bit) 102c7d4d259SMartin Schwidefsky */ 103c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 104c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 105c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 106c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 107c7d4d259SMartin Schwidefsky 108c7d4d259SMartin Schwidefsky /* 109c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 110c7d4d259SMartin Schwidefsky * instruction (0x80 is the decipher modifier bit) 111c7d4d259SMartin Schwidefsky */ 112c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 113c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 114c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 115c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 116c7d4d259SMartin Schwidefsky 117c7d4d259SMartin Schwidefsky /* 118c7d4d259SMartin Schwidefsky * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 119c7d4d259SMartin Schwidefsky * instruction (0x80 is the decipher modifier bit) 120c7d4d259SMartin Schwidefsky */ 121c7d4d259SMartin Schwidefsky #define CPACF_PPNO_QUERY 0x00 122c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_GEN 0x03 123c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_SEED 0x83 124c7d4d259SMartin Schwidefsky 125c7d4d259SMartin Schwidefsky /** 126c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 127c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 128c7d4d259SMartin Schwidefsky * @func: the function code to test for 129c7d4d259SMartin Schwidefsky * 130c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 131c7d4d259SMartin Schwidefsky * and checks if @func is available 132c7d4d259SMartin Schwidefsky * 133c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 134c7d4d259SMartin Schwidefsky */ 135c7d4d259SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, unsigned char *status) 136c7d4d259SMartin Schwidefsky { 137c7d4d259SMartin Schwidefsky typedef struct { unsigned char _[16]; } status_type; 138c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 139c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) status; 140c7d4d259SMartin Schwidefsky 141c7d4d259SMartin Schwidefsky asm volatile( 142*1afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 143c7d4d259SMartin Schwidefsky /* Parameter registers are ignored, but may not be 0 */ 144c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,2,2,2,0\n" 145c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 146c7d4d259SMartin Schwidefsky : "=m" (*(status_type *) status) 147c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 148c7d4d259SMartin Schwidefsky : "cc"); 149c7d4d259SMartin Schwidefsky } 150c7d4d259SMartin Schwidefsky 151c7d4d259SMartin Schwidefsky static inline int cpacf_query(unsigned int opcode, unsigned int func) 152c7d4d259SMartin Schwidefsky { 153c7d4d259SMartin Schwidefsky unsigned char status[16]; 154c7d4d259SMartin Schwidefsky 155c7d4d259SMartin Schwidefsky switch (opcode) { 156c7d4d259SMartin Schwidefsky case CPACF_KMAC: 157c7d4d259SMartin Schwidefsky case CPACF_KM: 158c7d4d259SMartin Schwidefsky case CPACF_KMC: 159c7d4d259SMartin Schwidefsky case CPACF_KIMD: 160c7d4d259SMartin Schwidefsky case CPACF_KLMD: 161c7d4d259SMartin Schwidefsky if (!test_facility(17)) /* check for MSA */ 162c7d4d259SMartin Schwidefsky return 0; 163c7d4d259SMartin Schwidefsky break; 164*1afd43e0SDavid Hildenbrand case CPACF_PCKMO: 165*1afd43e0SDavid Hildenbrand if (!test_facility(76)) /* check for MSA3 */ 166*1afd43e0SDavid Hildenbrand return 0; 167*1afd43e0SDavid Hildenbrand break; 168*1afd43e0SDavid Hildenbrand case CPACF_KMF: 169*1afd43e0SDavid Hildenbrand case CPACF_KMO: 170c7d4d259SMartin Schwidefsky case CPACF_PCC: 171c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 172c7d4d259SMartin Schwidefsky if (!test_facility(77)) /* check for MSA4 */ 173c7d4d259SMartin Schwidefsky return 0; 174c7d4d259SMartin Schwidefsky break; 175c7d4d259SMartin Schwidefsky case CPACF_PPNO: 176c7d4d259SMartin Schwidefsky if (!test_facility(57)) /* check for MSA5 */ 177c7d4d259SMartin Schwidefsky return 0; 178c7d4d259SMartin Schwidefsky break; 179c7d4d259SMartin Schwidefsky default: 180c7d4d259SMartin Schwidefsky BUG(); 181c7d4d259SMartin Schwidefsky } 182c7d4d259SMartin Schwidefsky __cpacf_query(opcode, status); 183c7d4d259SMartin Schwidefsky return (status[func >> 3] & (0x80 >> (func & 7))) != 0; 184c7d4d259SMartin Schwidefsky } 185c7d4d259SMartin Schwidefsky 186c7d4d259SMartin Schwidefsky /** 187c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 188c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 189c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 190c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 191c7d4d259SMartin Schwidefsky * @src: address of source memory area 192c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 193c7d4d259SMartin Schwidefsky * 194c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 195c7d4d259SMartin Schwidefsky * encryption/decryption funcs 196c7d4d259SMartin Schwidefsky */ 197c7d4d259SMartin Schwidefsky static inline int cpacf_km(long func, void *param, 198c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 199c7d4d259SMartin Schwidefsky { 200c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 201c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 202c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 203c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 204c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 205c7d4d259SMartin Schwidefsky 206c7d4d259SMartin Schwidefsky asm volatile( 207c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 208c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 209c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 210c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 211c7d4d259SMartin Schwidefsky : "cc", "memory"); 212c7d4d259SMartin Schwidefsky 213c7d4d259SMartin Schwidefsky return src_len - r3; 214c7d4d259SMartin Schwidefsky } 215c7d4d259SMartin Schwidefsky 216c7d4d259SMartin Schwidefsky /** 217c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 218c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 219c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 220c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 221c7d4d259SMartin Schwidefsky * @src: address of source memory area 222c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 223c7d4d259SMartin Schwidefsky * 224c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 225c7d4d259SMartin Schwidefsky * encryption/decryption funcs 226c7d4d259SMartin Schwidefsky */ 227c7d4d259SMartin Schwidefsky static inline int cpacf_kmc(long func, void *param, 228c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 229c7d4d259SMartin Schwidefsky { 230c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 231c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 232c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 233c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 234c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 235c7d4d259SMartin Schwidefsky 236c7d4d259SMartin Schwidefsky asm volatile( 237c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 238c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 239c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 240c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 241c7d4d259SMartin Schwidefsky : "cc", "memory"); 242c7d4d259SMartin Schwidefsky 243c7d4d259SMartin Schwidefsky return src_len - r3; 244c7d4d259SMartin Schwidefsky } 245c7d4d259SMartin Schwidefsky 246c7d4d259SMartin Schwidefsky /** 247c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 248c7d4d259SMartin Schwidefsky * instruction 249c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 250c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 251c7d4d259SMartin Schwidefsky * @src: address of source memory area 252c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 253c7d4d259SMartin Schwidefsky * 254c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 255c7d4d259SMartin Schwidefsky */ 256c7d4d259SMartin Schwidefsky static inline int cpacf_kimd(long func, void *param, 257c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 258c7d4d259SMartin Schwidefsky { 259c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 260c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 261c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 262c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 263c7d4d259SMartin Schwidefsky 264c7d4d259SMartin Schwidefsky asm volatile( 265c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 266c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 267c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 268c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 269c7d4d259SMartin Schwidefsky : "cc", "memory"); 270c7d4d259SMartin Schwidefsky 271c7d4d259SMartin Schwidefsky return src_len - r3; 272c7d4d259SMartin Schwidefsky } 273c7d4d259SMartin Schwidefsky 274c7d4d259SMartin Schwidefsky /** 275c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 276c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 277c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 278c7d4d259SMartin Schwidefsky * @src: address of source memory area 279c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 280c7d4d259SMartin Schwidefsky * 281c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 282c7d4d259SMartin Schwidefsky */ 283c7d4d259SMartin Schwidefsky static inline int cpacf_klmd(long func, void *param, 284c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 285c7d4d259SMartin Schwidefsky { 286c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 287c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 288c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 289c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 290c7d4d259SMartin Schwidefsky 291c7d4d259SMartin Schwidefsky asm volatile( 292c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 293c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 294c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 295c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 296c7d4d259SMartin Schwidefsky : "cc", "memory"); 297c7d4d259SMartin Schwidefsky 298c7d4d259SMartin Schwidefsky return src_len - r3; 299c7d4d259SMartin Schwidefsky } 300c7d4d259SMartin Schwidefsky 301c7d4d259SMartin Schwidefsky /** 302c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 303c7d4d259SMartin Schwidefsky * instruction 304c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 305c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 306c7d4d259SMartin Schwidefsky * @src: address of source memory area 307c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 308c7d4d259SMartin Schwidefsky * 309c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 310c7d4d259SMartin Schwidefsky */ 311c7d4d259SMartin Schwidefsky static inline int cpacf_kmac(long func, void *param, 312c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 313c7d4d259SMartin Schwidefsky { 314c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 315c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 316c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 317c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 318c7d4d259SMartin Schwidefsky 319c7d4d259SMartin Schwidefsky asm volatile( 320c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 321c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 322c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 323c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 324c7d4d259SMartin Schwidefsky : "cc", "memory"); 325c7d4d259SMartin Schwidefsky 326c7d4d259SMartin Schwidefsky return src_len - r3; 327c7d4d259SMartin Schwidefsky } 328c7d4d259SMartin Schwidefsky 329c7d4d259SMartin Schwidefsky /** 330c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 331c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 332c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 333c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 334c7d4d259SMartin Schwidefsky * @src: address of source memory area 335c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 336c7d4d259SMartin Schwidefsky * @counter: address of counter value 337c7d4d259SMartin Schwidefsky * 338c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 339c7d4d259SMartin Schwidefsky * encryption/decryption funcs 340c7d4d259SMartin Schwidefsky */ 341c7d4d259SMartin Schwidefsky static inline int cpacf_kmctr(long func, void *param, u8 *dest, 342c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 343c7d4d259SMartin Schwidefsky { 344c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 345c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 346c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 347c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 348c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 349c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 350c7d4d259SMartin Schwidefsky 351c7d4d259SMartin Schwidefsky asm volatile( 352c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 353c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 354c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 355c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 356c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 357c7d4d259SMartin Schwidefsky : "cc", "memory"); 358c7d4d259SMartin Schwidefsky 359c7d4d259SMartin Schwidefsky return src_len - r3; 360c7d4d259SMartin Schwidefsky } 361c7d4d259SMartin Schwidefsky 362c7d4d259SMartin Schwidefsky /** 363c7d4d259SMartin Schwidefsky * cpacf_ppno() - executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 364c7d4d259SMartin Schwidefsky * instruction 365c7d4d259SMartin Schwidefsky * @func: the function code passed to PPNO; see CPACF_PPNO_xxx defines 366c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 367c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 368c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 369c7d4d259SMartin Schwidefsky * @seed: address of seed data 370c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 371c7d4d259SMartin Schwidefsky * 372c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of random bytes stored in 373c7d4d259SMartin Schwidefsky * dest buffer for generate function 374c7d4d259SMartin Schwidefsky */ 375c7d4d259SMartin Schwidefsky static inline int cpacf_ppno(long func, void *param, 376c7d4d259SMartin Schwidefsky u8 *dest, long dest_len, 377c7d4d259SMartin Schwidefsky const u8 *seed, long seed_len) 378c7d4d259SMartin Schwidefsky { 379c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 380c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 381c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 382c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 383c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 384c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 385c7d4d259SMartin Schwidefsky 386c7d4d259SMartin Schwidefsky asm volatile ( 387c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 388c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 389c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 390c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 391c7d4d259SMartin Schwidefsky [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PPNO) 392c7d4d259SMartin Schwidefsky : "cc", "memory"); 393c7d4d259SMartin Schwidefsky 394c7d4d259SMartin Schwidefsky return dest_len - r3; 395c7d4d259SMartin Schwidefsky } 396c7d4d259SMartin Schwidefsky 397c7d4d259SMartin Schwidefsky /** 398c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 399c7d4d259SMartin Schwidefsky * instruction 400c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 401c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 402c7d4d259SMartin Schwidefsky * 403c7d4d259SMartin Schwidefsky * Returns 0. 404c7d4d259SMartin Schwidefsky */ 405c7d4d259SMartin Schwidefsky static inline int cpacf_pcc(long func, void *param) 406c7d4d259SMartin Schwidefsky { 407c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 408c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 409c7d4d259SMartin Schwidefsky 410c7d4d259SMartin Schwidefsky asm volatile( 411c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 412c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 413c7d4d259SMartin Schwidefsky : 414c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 415c7d4d259SMartin Schwidefsky : "cc", "memory"); 416c7d4d259SMartin Schwidefsky 417c7d4d259SMartin Schwidefsky return 0; 418c7d4d259SMartin Schwidefsky } 419c7d4d259SMartin Schwidefsky 420c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 421