1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2c7d4d259SMartin Schwidefsky /* 3c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 4c7d4d259SMartin Schwidefsky * 59e436c19SHarald Freudenberger * Copyright IBM Corp. 2003, 2023 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 963c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_224 0x20 973c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_256 0x21 983c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_384 0x22 993c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_512 0x23 100c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 101c7d4d259SMartin Schwidefsky 102c7d4d259SMartin Schwidefsky /* 103c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 104edc63a37SMartin Schwidefsky * instruction 105c7d4d259SMartin Schwidefsky */ 106c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 107c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 108c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 109c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 1103c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_224 0x20 1113c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_256 0x21 1123c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_384 0x22 1133c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_512 0x23 114c7d4d259SMartin Schwidefsky 115c7d4d259SMartin Schwidefsky /* 116c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 117edc63a37SMartin Schwidefsky * instruction 118c7d4d259SMartin Schwidefsky */ 119c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 120c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 121c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 122c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 123c7d4d259SMartin Schwidefsky 124c7d4d259SMartin Schwidefsky /* 12577606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 12677606708SHarald Freudenberger * instruction 12777606708SHarald Freudenberger */ 12877606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 12977606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 13077606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 13177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 13277606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 13377606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 13477606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 1359e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P256_KEY 0x20 1369e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P384_KEY 0x21 1379e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P521_KEY 0x22 1389e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_ED25519_KEY 0x28 1399e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_ED448_KEY 0x29 14077606708SHarald Freudenberger 14177606708SHarald Freudenberger /* 142985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 143edc63a37SMartin Schwidefsky * instruction 144c7d4d259SMartin Schwidefsky */ 145985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 146985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 147985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 148f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 149f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 150c7d4d259SMartin Schwidefsky 151eecd49c4SPatrick Steuer /* 152eecd49c4SPatrick Steuer * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 153eecd49c4SPatrick Steuer * instruction 154eecd49c4SPatrick Steuer */ 155eecd49c4SPatrick Steuer #define CPACF_KMA_QUERY 0x00 156eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_128 0x12 157eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_192 0x13 158eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_256 0x14 159eecd49c4SPatrick Steuer 160eecd49c4SPatrick Steuer /* 161eecd49c4SPatrick Steuer * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction 162eecd49c4SPatrick Steuer */ 163eecd49c4SPatrick Steuer #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */ 164eecd49c4SPatrick Steuer #define CPACF_KMA_LAAD 0x200 /* Last-AAD */ 165eecd49c4SPatrick Steuer #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */ 166eecd49c4SPatrick Steuer 16769c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 16869c0e360SMartin Schwidefsky 169*830999bdSHarald Freudenberger static __always_inline void __cpacf_query_rre(u32 opc, u8 r1, u8 r2, 170*830999bdSHarald Freudenberger cpacf_mask_t *mask) 171c7d4d259SMartin Schwidefsky { 172c7d4d259SMartin Schwidefsky asm volatile( 173*830999bdSHarald Freudenberger " la %%r1,%[mask]\n" 174*830999bdSHarald Freudenberger " xgr %%r0,%%r0\n" 175*830999bdSHarald Freudenberger " .insn rre,%[opc] << 16,%[r1],%[r2]\n" 176*830999bdSHarald Freudenberger : [mask] "=R" (*mask) 177*830999bdSHarald Freudenberger : [opc] "i" (opc), 178*830999bdSHarald Freudenberger [r1] "i" (r1), [r2] "i" (r2) 179*830999bdSHarald Freudenberger : "cc", "r0", "r1"); 180*830999bdSHarald Freudenberger } 181*830999bdSHarald Freudenberger 182*830999bdSHarald Freudenberger static __always_inline void __cpacf_query_rrf(u32 opc, 183*830999bdSHarald Freudenberger u8 r1, u8 r2, u8 r3, u8 m4, 184*830999bdSHarald Freudenberger cpacf_mask_t *mask) 185*830999bdSHarald Freudenberger { 186*830999bdSHarald Freudenberger asm volatile( 187*830999bdSHarald Freudenberger " la %%r1,%[mask]\n" 188*830999bdSHarald Freudenberger " xgr %%r0,%%r0\n" 189*830999bdSHarald Freudenberger " .insn rrf,%[opc] << 16,%[r1],%[r2],%[r3],%[m4]\n" 190*830999bdSHarald Freudenberger : [mask] "=R" (*mask) 191*830999bdSHarald Freudenberger : [opc] "i" (opc), [r1] "i" (r1), [r2] "i" (r2), 192*830999bdSHarald Freudenberger [r3] "i" (r3), [m4] "i" (m4) 193*830999bdSHarald Freudenberger : "cc", "r0", "r1"); 194*830999bdSHarald Freudenberger } 195*830999bdSHarald Freudenberger 196*830999bdSHarald Freudenberger static __always_inline void __cpacf_query(unsigned int opcode, 197*830999bdSHarald Freudenberger cpacf_mask_t *mask) 198*830999bdSHarald Freudenberger { 199*830999bdSHarald Freudenberger switch (opcode) { 200*830999bdSHarald Freudenberger case CPACF_KDSA: 201*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KDSA, 0, 2, mask); 202*830999bdSHarald Freudenberger break; 203*830999bdSHarald Freudenberger case CPACF_KIMD: 204*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KIMD, 0, 2, mask); 205*830999bdSHarald Freudenberger break; 206*830999bdSHarald Freudenberger case CPACF_KLMD: 207*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KLMD, 0, 2, mask); 208*830999bdSHarald Freudenberger break; 209*830999bdSHarald Freudenberger case CPACF_KM: 210*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KM, 2, 4, mask); 211*830999bdSHarald Freudenberger break; 212*830999bdSHarald Freudenberger case CPACF_KMA: 213*830999bdSHarald Freudenberger __cpacf_query_rrf(CPACF_KMA, 2, 4, 6, 0, mask); 214*830999bdSHarald Freudenberger break; 215*830999bdSHarald Freudenberger case CPACF_KMAC: 216*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMAC, 0, 2, mask); 217*830999bdSHarald Freudenberger break; 218*830999bdSHarald Freudenberger case CPACF_KMC: 219*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMC, 2, 4, mask); 220*830999bdSHarald Freudenberger break; 221*830999bdSHarald Freudenberger case CPACF_KMCTR: 222*830999bdSHarald Freudenberger __cpacf_query_rrf(CPACF_KMCTR, 2, 4, 6, 0, mask); 223*830999bdSHarald Freudenberger break; 224*830999bdSHarald Freudenberger case CPACF_KMF: 225*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMF, 2, 4, mask); 226*830999bdSHarald Freudenberger break; 227*830999bdSHarald Freudenberger case CPACF_KMO: 228*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMO, 2, 4, mask); 229*830999bdSHarald Freudenberger break; 230*830999bdSHarald Freudenberger case CPACF_PCC: 231*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PCC, 0, 0, mask); 232*830999bdSHarald Freudenberger break; 233*830999bdSHarald Freudenberger case CPACF_PCKMO: 234*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PCKMO, 0, 0, mask); 235*830999bdSHarald Freudenberger break; 236*830999bdSHarald Freudenberger case CPACF_PRNO: 237*830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PRNO, 2, 4, mask); 238*830999bdSHarald Freudenberger break; 239*830999bdSHarald Freudenberger default: 240*830999bdSHarald Freudenberger BUG(); 241*830999bdSHarald Freudenberger } 242c7d4d259SMartin Schwidefsky } 243c7d4d259SMartin Schwidefsky 244d83623c5SMasahiro Yamada static __always_inline int __cpacf_check_opcode(unsigned int opcode) 245c7d4d259SMartin Schwidefsky { 246c7d4d259SMartin Schwidefsky switch (opcode) { 247c7d4d259SMartin Schwidefsky case CPACF_KMAC: 248c7d4d259SMartin Schwidefsky case CPACF_KM: 249c7d4d259SMartin Schwidefsky case CPACF_KMC: 250c7d4d259SMartin Schwidefsky case CPACF_KIMD: 251c7d4d259SMartin Schwidefsky case CPACF_KLMD: 25269c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 2531afd43e0SDavid Hildenbrand case CPACF_PCKMO: 25469c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 2551afd43e0SDavid Hildenbrand case CPACF_KMF: 2561afd43e0SDavid Hildenbrand case CPACF_KMO: 257c7d4d259SMartin Schwidefsky case CPACF_PCC: 258c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 25969c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 260985a9d20SHarald Freudenberger case CPACF_PRNO: 26169c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 262eecd49c4SPatrick Steuer case CPACF_KMA: 263eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 264c7d4d259SMartin Schwidefsky default: 265c7d4d259SMartin Schwidefsky BUG(); 266c7d4d259SMartin Schwidefsky } 26769c0e360SMartin Schwidefsky } 26869c0e360SMartin Schwidefsky 269*830999bdSHarald Freudenberger /** 270*830999bdSHarald Freudenberger * cpacf_query() - check if a specific CPACF function is available 271*830999bdSHarald Freudenberger * @opcode: the opcode of the crypto instruction 272*830999bdSHarald Freudenberger * @func: the function code to test for 273*830999bdSHarald Freudenberger * 274*830999bdSHarald Freudenberger * Executes the query function for the given crypto instruction @opcode 275*830999bdSHarald Freudenberger * and checks if @func is available 276*830999bdSHarald Freudenberger * 277*830999bdSHarald Freudenberger * Returns 1 if @func is available for @opcode, 0 otherwise 278*830999bdSHarald Freudenberger */ 279e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 28069c0e360SMartin Schwidefsky { 28169c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 28269c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 28369c0e360SMartin Schwidefsky return 1; 28469c0e360SMartin Schwidefsky } 28569c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 28669c0e360SMartin Schwidefsky return 0; 28769c0e360SMartin Schwidefsky } 28869c0e360SMartin Schwidefsky 28969c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 29069c0e360SMartin Schwidefsky { 29169c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 29269c0e360SMartin Schwidefsky } 29369c0e360SMartin Schwidefsky 294d83623c5SMasahiro Yamada static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func) 29569c0e360SMartin Schwidefsky { 29669c0e360SMartin Schwidefsky cpacf_mask_t mask; 29769c0e360SMartin Schwidefsky 29869c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 29969c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 30069c0e360SMartin Schwidefsky return 0; 301c7d4d259SMartin Schwidefsky } 302c7d4d259SMartin Schwidefsky 303c7d4d259SMartin Schwidefsky /** 304c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 305c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 306c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 307c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 308c7d4d259SMartin Schwidefsky * @src: address of source memory area 309c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 310c7d4d259SMartin Schwidefsky * 311c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 312c7d4d259SMartin Schwidefsky * encryption/decryption funcs 313c7d4d259SMartin Schwidefsky */ 314edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 315c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 316c7d4d259SMartin Schwidefsky { 317b84d0c41SHeiko Carstens union register_pair d, s; 318c7d4d259SMartin Schwidefsky 319b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 320b84d0c41SHeiko Carstens s.even = (unsigned long)src; 321b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 322c7d4d259SMartin Schwidefsky asm volatile( 323b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 324b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 325c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 326c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 327b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 328b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 329b84d0c41SHeiko Carstens [opc] "i" (CPACF_KM) 330b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 331c7d4d259SMartin Schwidefsky 332b84d0c41SHeiko Carstens return src_len - s.odd; 333c7d4d259SMartin Schwidefsky } 334c7d4d259SMartin Schwidefsky 335c7d4d259SMartin Schwidefsky /** 336c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 337c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 338c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 339c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 340c7d4d259SMartin Schwidefsky * @src: address of source memory area 341c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 342c7d4d259SMartin Schwidefsky * 343c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 344c7d4d259SMartin Schwidefsky * encryption/decryption funcs 345c7d4d259SMartin Schwidefsky */ 346edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 347c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 348c7d4d259SMartin Schwidefsky { 349b84d0c41SHeiko Carstens union register_pair d, s; 350c7d4d259SMartin Schwidefsky 351b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 352b84d0c41SHeiko Carstens s.even = (unsigned long)src; 353b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 354c7d4d259SMartin Schwidefsky asm volatile( 355b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 356b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 357c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 358c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 359b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 360b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 361b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMC) 362b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 363c7d4d259SMartin Schwidefsky 364b84d0c41SHeiko Carstens return src_len - s.odd; 365c7d4d259SMartin Schwidefsky } 366c7d4d259SMartin Schwidefsky 367c7d4d259SMartin Schwidefsky /** 368c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 369c7d4d259SMartin Schwidefsky * instruction 370c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 371c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 372c7d4d259SMartin Schwidefsky * @src: address of source memory area 373c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 374c7d4d259SMartin Schwidefsky */ 3750177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 376c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 377c7d4d259SMartin Schwidefsky { 378b84d0c41SHeiko Carstens union register_pair s; 379c7d4d259SMartin Schwidefsky 380b84d0c41SHeiko Carstens s.even = (unsigned long)src; 381b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 382c7d4d259SMartin Schwidefsky asm volatile( 383b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 384b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 385c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 386c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 387b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 388b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)(param)), 389b84d0c41SHeiko Carstens [opc] "i" (CPACF_KIMD) 390b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 391c7d4d259SMartin Schwidefsky } 392c7d4d259SMartin Schwidefsky 393c7d4d259SMartin Schwidefsky /** 394c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 395c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 396c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 397c7d4d259SMartin Schwidefsky * @src: address of source memory area 398c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 399c7d4d259SMartin Schwidefsky */ 4000177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 401c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 402c7d4d259SMartin Schwidefsky { 403b84d0c41SHeiko Carstens union register_pair s; 404c7d4d259SMartin Schwidefsky 405b84d0c41SHeiko Carstens s.even = (unsigned long)src; 406b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 407c7d4d259SMartin Schwidefsky asm volatile( 408b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 409b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 410c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 411c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 412b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 413b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 414b84d0c41SHeiko Carstens [opc] "i" (CPACF_KLMD) 415b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 416c7d4d259SMartin Schwidefsky } 417c7d4d259SMartin Schwidefsky 418c7d4d259SMartin Schwidefsky /** 419c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 420c7d4d259SMartin Schwidefsky * instruction 421c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 422c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 423c7d4d259SMartin Schwidefsky * @src: address of source memory area 424c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 425c7d4d259SMartin Schwidefsky * 426c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 427c7d4d259SMartin Schwidefsky */ 428edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 429c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 430c7d4d259SMartin Schwidefsky { 431b84d0c41SHeiko Carstens union register_pair s; 432c7d4d259SMartin Schwidefsky 433b84d0c41SHeiko Carstens s.even = (unsigned long)src; 434b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 435c7d4d259SMartin Schwidefsky asm volatile( 436b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 437b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 438c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 439c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 440b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 441b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 442b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMAC) 443b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 444c7d4d259SMartin Schwidefsky 445b84d0c41SHeiko Carstens return src_len - s.odd; 446c7d4d259SMartin Schwidefsky } 447c7d4d259SMartin Schwidefsky 448c7d4d259SMartin Schwidefsky /** 449c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 450c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 451c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 452c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 453c7d4d259SMartin Schwidefsky * @src: address of source memory area 454c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 455c7d4d259SMartin Schwidefsky * @counter: address of counter value 456c7d4d259SMartin Schwidefsky * 457c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 458c7d4d259SMartin Schwidefsky * encryption/decryption funcs 459c7d4d259SMartin Schwidefsky */ 460edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 461c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 462c7d4d259SMartin Schwidefsky { 463b84d0c41SHeiko Carstens union register_pair d, s, c; 464c7d4d259SMartin Schwidefsky 465b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 466b84d0c41SHeiko Carstens s.even = (unsigned long)src; 467b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 468b84d0c41SHeiko Carstens c.even = (unsigned long)counter; 469c7d4d259SMartin Schwidefsky asm volatile( 470b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 471b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 472c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 473c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 474b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair), 475b84d0c41SHeiko Carstens [ctr] "+&d" (c.pair) 476b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 477b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMCTR) 478b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 479c7d4d259SMartin Schwidefsky 480b84d0c41SHeiko Carstens return src_len - s.odd; 481c7d4d259SMartin Schwidefsky } 482c7d4d259SMartin Schwidefsky 483c7d4d259SMartin Schwidefsky /** 484985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 485c7d4d259SMartin Schwidefsky * instruction 486985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 487c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 488c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 489c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 490c7d4d259SMartin Schwidefsky * @seed: address of seed data 491c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 492c7d4d259SMartin Schwidefsky */ 493985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 494f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 495f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 496c7d4d259SMartin Schwidefsky { 497b84d0c41SHeiko Carstens union register_pair d, s; 498c7d4d259SMartin Schwidefsky 499b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 500b84d0c41SHeiko Carstens d.odd = (unsigned long)dest_len; 501b84d0c41SHeiko Carstens s.even = (unsigned long)seed; 502b84d0c41SHeiko Carstens s.odd = (unsigned long)seed_len; 503c7d4d259SMartin Schwidefsky asm volatile ( 504b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 505b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 506c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 507c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 508b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair) 509b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 510b84d0c41SHeiko Carstens [seed] "d" (s.pair), [opc] "i" (CPACF_PRNO) 511b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 512c7d4d259SMartin Schwidefsky } 513c7d4d259SMartin Schwidefsky 514c7d4d259SMartin Schwidefsky /** 515f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 516f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 517f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 518f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 519f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 520f75fa65dSHarald Freudenberger */ 521f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 522f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 523f75fa65dSHarald Freudenberger { 524b84d0c41SHeiko Carstens union register_pair u, c; 525f75fa65dSHarald Freudenberger 526b84d0c41SHeiko Carstens u.even = (unsigned long)ucbuf; 527b84d0c41SHeiko Carstens u.odd = (unsigned long)ucbuf_len; 528b84d0c41SHeiko Carstens c.even = (unsigned long)cbuf; 529b84d0c41SHeiko Carstens c.odd = (unsigned long)cbuf_len; 530f75fa65dSHarald Freudenberger asm volatile ( 531b84d0c41SHeiko Carstens " lghi 0,%[fc]\n" 532f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 533f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 534b84d0c41SHeiko Carstens : [ucbuf] "+&d" (u.pair), [cbuf] "+&d" (c.pair) 535b84d0c41SHeiko Carstens : [fc] "K" (CPACF_PRNO_TRNG), [opc] "i" (CPACF_PRNO) 536b84d0c41SHeiko Carstens : "cc", "memory", "0"); 537f75fa65dSHarald Freudenberger } 538f75fa65dSHarald Freudenberger 539f75fa65dSHarald Freudenberger /** 540c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 541c7d4d259SMartin Schwidefsky * instruction 542c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 543c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 544c7d4d259SMartin Schwidefsky */ 5450177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 546c7d4d259SMartin Schwidefsky { 547c7d4d259SMartin Schwidefsky asm volatile( 548b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 549b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 550c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 551c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 552c7d4d259SMartin Schwidefsky : 553b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 554b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCC) 555b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 556c7d4d259SMartin Schwidefsky } 557c7d4d259SMartin Schwidefsky 55877606708SHarald Freudenberger /** 55977606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 56077606708SHarald Freudenberger * MANAGEMENT) instruction 56177606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 56277606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 56377606708SHarald Freudenberger * 56477606708SHarald Freudenberger * Returns 0. 56577606708SHarald Freudenberger */ 56677606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 56777606708SHarald Freudenberger { 56877606708SHarald Freudenberger asm volatile( 569b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 570b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 57177606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 57277606708SHarald Freudenberger : 573b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 574b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCKMO) 575b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 57677606708SHarald Freudenberger } 57777606708SHarald Freudenberger 578eecd49c4SPatrick Steuer /** 579eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 580eecd49c4SPatrick Steuer * instruction 581eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 582eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 583eecd49c4SPatrick Steuer * @dest: address of destination memory area 584eecd49c4SPatrick Steuer * @src: address of source memory area 585eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 586eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 587eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 588eecd49c4SPatrick Steuer */ 589eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 590eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 591eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 592eecd49c4SPatrick Steuer { 593b84d0c41SHeiko Carstens union register_pair d, s, a; 594eecd49c4SPatrick Steuer 595b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 596b84d0c41SHeiko Carstens s.even = (unsigned long)src; 597b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 598b84d0c41SHeiko Carstens a.even = (unsigned long)aad; 599b84d0c41SHeiko Carstens a.odd = (unsigned long)aad_len; 600eecd49c4SPatrick Steuer asm volatile( 601b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 602b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 603eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 604eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 605b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair), [src] "+&d" (s.pair), 606b84d0c41SHeiko Carstens [aad] "+&d" (a.pair) 607b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 608b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMA) 609b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 610eecd49c4SPatrick Steuer } 611eecd49c4SPatrick Steuer 612c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 613