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*32e8bd64SHarald Freudenberger /* 170*32e8bd64SHarald Freudenberger * Prototype for a not existing function to produce a link 171*32e8bd64SHarald Freudenberger * error if __cpacf_query() or __cpacf_check_opcode() is used 172*32e8bd64SHarald Freudenberger * with an invalid compile time const opcode. 173*32e8bd64SHarald Freudenberger */ 174*32e8bd64SHarald Freudenberger void __cpacf_bad_opcode(void); 175*32e8bd64SHarald Freudenberger 176830999bdSHarald Freudenberger static __always_inline void __cpacf_query_rre(u32 opc, u8 r1, u8 r2, 177830999bdSHarald Freudenberger cpacf_mask_t *mask) 178c7d4d259SMartin Schwidefsky { 179c7d4d259SMartin Schwidefsky asm volatile( 180830999bdSHarald Freudenberger " la %%r1,%[mask]\n" 181830999bdSHarald Freudenberger " xgr %%r0,%%r0\n" 182830999bdSHarald Freudenberger " .insn rre,%[opc] << 16,%[r1],%[r2]\n" 183830999bdSHarald Freudenberger : [mask] "=R" (*mask) 184830999bdSHarald Freudenberger : [opc] "i" (opc), 185830999bdSHarald Freudenberger [r1] "i" (r1), [r2] "i" (r2) 186830999bdSHarald Freudenberger : "cc", "r0", "r1"); 187830999bdSHarald Freudenberger } 188830999bdSHarald Freudenberger 189830999bdSHarald Freudenberger static __always_inline void __cpacf_query_rrf(u32 opc, 190830999bdSHarald Freudenberger u8 r1, u8 r2, u8 r3, u8 m4, 191830999bdSHarald Freudenberger cpacf_mask_t *mask) 192830999bdSHarald Freudenberger { 193830999bdSHarald Freudenberger asm volatile( 194830999bdSHarald Freudenberger " la %%r1,%[mask]\n" 195830999bdSHarald Freudenberger " xgr %%r0,%%r0\n" 196830999bdSHarald Freudenberger " .insn rrf,%[opc] << 16,%[r1],%[r2],%[r3],%[m4]\n" 197830999bdSHarald Freudenberger : [mask] "=R" (*mask) 198830999bdSHarald Freudenberger : [opc] "i" (opc), [r1] "i" (r1), [r2] "i" (r2), 199830999bdSHarald Freudenberger [r3] "i" (r3), [m4] "i" (m4) 200830999bdSHarald Freudenberger : "cc", "r0", "r1"); 201830999bdSHarald Freudenberger } 202830999bdSHarald Freudenberger 203830999bdSHarald Freudenberger static __always_inline void __cpacf_query(unsigned int opcode, 204830999bdSHarald Freudenberger cpacf_mask_t *mask) 205830999bdSHarald Freudenberger { 206830999bdSHarald Freudenberger switch (opcode) { 207830999bdSHarald Freudenberger case CPACF_KDSA: 208830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KDSA, 0, 2, mask); 209830999bdSHarald Freudenberger break; 210830999bdSHarald Freudenberger case CPACF_KIMD: 211830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KIMD, 0, 2, mask); 212830999bdSHarald Freudenberger break; 213830999bdSHarald Freudenberger case CPACF_KLMD: 214830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KLMD, 0, 2, mask); 215830999bdSHarald Freudenberger break; 216830999bdSHarald Freudenberger case CPACF_KM: 217830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KM, 2, 4, mask); 218830999bdSHarald Freudenberger break; 219830999bdSHarald Freudenberger case CPACF_KMA: 220830999bdSHarald Freudenberger __cpacf_query_rrf(CPACF_KMA, 2, 4, 6, 0, mask); 221830999bdSHarald Freudenberger break; 222830999bdSHarald Freudenberger case CPACF_KMAC: 223830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMAC, 0, 2, mask); 224830999bdSHarald Freudenberger break; 225830999bdSHarald Freudenberger case CPACF_KMC: 226830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMC, 2, 4, mask); 227830999bdSHarald Freudenberger break; 228830999bdSHarald Freudenberger case CPACF_KMCTR: 229830999bdSHarald Freudenberger __cpacf_query_rrf(CPACF_KMCTR, 2, 4, 6, 0, mask); 230830999bdSHarald Freudenberger break; 231830999bdSHarald Freudenberger case CPACF_KMF: 232830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMF, 2, 4, mask); 233830999bdSHarald Freudenberger break; 234830999bdSHarald Freudenberger case CPACF_KMO: 235830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMO, 2, 4, mask); 236830999bdSHarald Freudenberger break; 237830999bdSHarald Freudenberger case CPACF_PCC: 238830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PCC, 0, 0, mask); 239830999bdSHarald Freudenberger break; 240830999bdSHarald Freudenberger case CPACF_PCKMO: 241830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PCKMO, 0, 0, mask); 242830999bdSHarald Freudenberger break; 243830999bdSHarald Freudenberger case CPACF_PRNO: 244830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PRNO, 2, 4, mask); 245830999bdSHarald Freudenberger break; 246830999bdSHarald Freudenberger default: 247*32e8bd64SHarald Freudenberger __cpacf_bad_opcode(); 248830999bdSHarald Freudenberger } 249c7d4d259SMartin Schwidefsky } 250c7d4d259SMartin Schwidefsky 251d83623c5SMasahiro Yamada static __always_inline int __cpacf_check_opcode(unsigned int opcode) 252c7d4d259SMartin Schwidefsky { 253c7d4d259SMartin Schwidefsky switch (opcode) { 254c7d4d259SMartin Schwidefsky case CPACF_KMAC: 255c7d4d259SMartin Schwidefsky case CPACF_KM: 256c7d4d259SMartin Schwidefsky case CPACF_KMC: 257c7d4d259SMartin Schwidefsky case CPACF_KIMD: 258c7d4d259SMartin Schwidefsky case CPACF_KLMD: 25969c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 2601afd43e0SDavid Hildenbrand case CPACF_PCKMO: 26169c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 2621afd43e0SDavid Hildenbrand case CPACF_KMF: 2631afd43e0SDavid Hildenbrand case CPACF_KMO: 264c7d4d259SMartin Schwidefsky case CPACF_PCC: 265c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 26669c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 267985a9d20SHarald Freudenberger case CPACF_PRNO: 26869c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 269eecd49c4SPatrick Steuer case CPACF_KMA: 270eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 271c7d4d259SMartin Schwidefsky default: 272*32e8bd64SHarald Freudenberger __cpacf_bad_opcode(); 273*32e8bd64SHarald Freudenberger return 0; 274c7d4d259SMartin Schwidefsky } 27569c0e360SMartin Schwidefsky } 27669c0e360SMartin Schwidefsky 277830999bdSHarald Freudenberger /** 278830999bdSHarald Freudenberger * cpacf_query() - check if a specific CPACF function is available 279830999bdSHarald Freudenberger * @opcode: the opcode of the crypto instruction 280830999bdSHarald Freudenberger * @func: the function code to test for 281830999bdSHarald Freudenberger * 282830999bdSHarald Freudenberger * Executes the query function for the given crypto instruction @opcode 283830999bdSHarald Freudenberger * and checks if @func is available 284830999bdSHarald Freudenberger * 285830999bdSHarald Freudenberger * Returns 1 if @func is available for @opcode, 0 otherwise 286830999bdSHarald Freudenberger */ 287e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 28869c0e360SMartin Schwidefsky { 28969c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 29069c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 29169c0e360SMartin Schwidefsky return 1; 29269c0e360SMartin Schwidefsky } 29369c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 29469c0e360SMartin Schwidefsky return 0; 29569c0e360SMartin Schwidefsky } 29669c0e360SMartin Schwidefsky 29769c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 29869c0e360SMartin Schwidefsky { 29969c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 30069c0e360SMartin Schwidefsky } 30169c0e360SMartin Schwidefsky 302d83623c5SMasahiro Yamada static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func) 30369c0e360SMartin Schwidefsky { 30469c0e360SMartin Schwidefsky cpacf_mask_t mask; 30569c0e360SMartin Schwidefsky 30669c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 30769c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 30869c0e360SMartin Schwidefsky return 0; 309c7d4d259SMartin Schwidefsky } 310c7d4d259SMartin Schwidefsky 311c7d4d259SMartin Schwidefsky /** 312c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 313c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 314c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 315c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 316c7d4d259SMartin Schwidefsky * @src: address of source memory area 317c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 318c7d4d259SMartin Schwidefsky * 319c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 320c7d4d259SMartin Schwidefsky * encryption/decryption funcs 321c7d4d259SMartin Schwidefsky */ 322edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 323c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 324c7d4d259SMartin Schwidefsky { 325b84d0c41SHeiko Carstens union register_pair d, s; 326c7d4d259SMartin Schwidefsky 327b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 328b84d0c41SHeiko Carstens s.even = (unsigned long)src; 329b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 330c7d4d259SMartin Schwidefsky asm volatile( 331b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 332b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 333c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 334c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 335b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 336b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 337b84d0c41SHeiko Carstens [opc] "i" (CPACF_KM) 338b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 339c7d4d259SMartin Schwidefsky 340b84d0c41SHeiko Carstens return src_len - s.odd; 341c7d4d259SMartin Schwidefsky } 342c7d4d259SMartin Schwidefsky 343c7d4d259SMartin Schwidefsky /** 344c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 345c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 346c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 347c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 348c7d4d259SMartin Schwidefsky * @src: address of source memory area 349c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 350c7d4d259SMartin Schwidefsky * 351c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 352c7d4d259SMartin Schwidefsky * encryption/decryption funcs 353c7d4d259SMartin Schwidefsky */ 354edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 355c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 356c7d4d259SMartin Schwidefsky { 357b84d0c41SHeiko Carstens union register_pair d, s; 358c7d4d259SMartin Schwidefsky 359b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 360b84d0c41SHeiko Carstens s.even = (unsigned long)src; 361b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 362c7d4d259SMartin Schwidefsky asm volatile( 363b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 364b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 365c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 366c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 367b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 368b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 369b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMC) 370b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 371c7d4d259SMartin Schwidefsky 372b84d0c41SHeiko Carstens return src_len - s.odd; 373c7d4d259SMartin Schwidefsky } 374c7d4d259SMartin Schwidefsky 375c7d4d259SMartin Schwidefsky /** 376c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 377c7d4d259SMartin Schwidefsky * instruction 378c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 379c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 380c7d4d259SMartin Schwidefsky * @src: address of source memory area 381c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 382c7d4d259SMartin Schwidefsky */ 3830177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 384c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 385c7d4d259SMartin Schwidefsky { 386b84d0c41SHeiko Carstens union register_pair s; 387c7d4d259SMartin Schwidefsky 388b84d0c41SHeiko Carstens s.even = (unsigned long)src; 389b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 390c7d4d259SMartin Schwidefsky asm volatile( 391b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 392b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 393c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 394c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 395b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 396b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)(param)), 397b84d0c41SHeiko Carstens [opc] "i" (CPACF_KIMD) 398b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 399c7d4d259SMartin Schwidefsky } 400c7d4d259SMartin Schwidefsky 401c7d4d259SMartin Schwidefsky /** 402c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 403c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 404c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 405c7d4d259SMartin Schwidefsky * @src: address of source memory area 406c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 407c7d4d259SMartin Schwidefsky */ 4080177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 409c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 410c7d4d259SMartin Schwidefsky { 411b84d0c41SHeiko Carstens union register_pair s; 412c7d4d259SMartin Schwidefsky 413b84d0c41SHeiko Carstens s.even = (unsigned long)src; 414b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 415c7d4d259SMartin Schwidefsky asm volatile( 416b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 417b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 418c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 419c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 420b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 421b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 422b84d0c41SHeiko Carstens [opc] "i" (CPACF_KLMD) 423b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 424c7d4d259SMartin Schwidefsky } 425c7d4d259SMartin Schwidefsky 426c7d4d259SMartin Schwidefsky /** 427c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 428c7d4d259SMartin Schwidefsky * instruction 429c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 430c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 431c7d4d259SMartin Schwidefsky * @src: address of source memory area 432c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 433c7d4d259SMartin Schwidefsky * 434c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 435c7d4d259SMartin Schwidefsky */ 436edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 437c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 438c7d4d259SMartin Schwidefsky { 439b84d0c41SHeiko Carstens union register_pair s; 440c7d4d259SMartin Schwidefsky 441b84d0c41SHeiko Carstens s.even = (unsigned long)src; 442b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 443c7d4d259SMartin Schwidefsky asm volatile( 444b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 445b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 446c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 447c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 448b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 449b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 450b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMAC) 451b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 452c7d4d259SMartin Schwidefsky 453b84d0c41SHeiko Carstens return src_len - s.odd; 454c7d4d259SMartin Schwidefsky } 455c7d4d259SMartin Schwidefsky 456c7d4d259SMartin Schwidefsky /** 457c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 458c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 459c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 460c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 461c7d4d259SMartin Schwidefsky * @src: address of source memory area 462c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 463c7d4d259SMartin Schwidefsky * @counter: address of counter value 464c7d4d259SMartin Schwidefsky * 465c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 466c7d4d259SMartin Schwidefsky * encryption/decryption funcs 467c7d4d259SMartin Schwidefsky */ 468edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 469c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 470c7d4d259SMartin Schwidefsky { 471b84d0c41SHeiko Carstens union register_pair d, s, c; 472c7d4d259SMartin Schwidefsky 473b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 474b84d0c41SHeiko Carstens s.even = (unsigned long)src; 475b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 476b84d0c41SHeiko Carstens c.even = (unsigned long)counter; 477c7d4d259SMartin Schwidefsky asm volatile( 478b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 479b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 480c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 481c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 482b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair), 483b84d0c41SHeiko Carstens [ctr] "+&d" (c.pair) 484b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 485b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMCTR) 486b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 487c7d4d259SMartin Schwidefsky 488b84d0c41SHeiko Carstens return src_len - s.odd; 489c7d4d259SMartin Schwidefsky } 490c7d4d259SMartin Schwidefsky 491c7d4d259SMartin Schwidefsky /** 492985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 493c7d4d259SMartin Schwidefsky * instruction 494985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 495c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 496c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 497c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 498c7d4d259SMartin Schwidefsky * @seed: address of seed data 499c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 500c7d4d259SMartin Schwidefsky */ 501985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 502f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 503f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 504c7d4d259SMartin Schwidefsky { 505b84d0c41SHeiko Carstens union register_pair d, s; 506c7d4d259SMartin Schwidefsky 507b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 508b84d0c41SHeiko Carstens d.odd = (unsigned long)dest_len; 509b84d0c41SHeiko Carstens s.even = (unsigned long)seed; 510b84d0c41SHeiko Carstens s.odd = (unsigned long)seed_len; 511c7d4d259SMartin Schwidefsky asm volatile ( 512b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 513b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 514c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 515c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 516b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair) 517b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 518b84d0c41SHeiko Carstens [seed] "d" (s.pair), [opc] "i" (CPACF_PRNO) 519b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 520c7d4d259SMartin Schwidefsky } 521c7d4d259SMartin Schwidefsky 522c7d4d259SMartin Schwidefsky /** 523f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 524f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 525f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 526f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 527f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 528f75fa65dSHarald Freudenberger */ 529f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 530f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 531f75fa65dSHarald Freudenberger { 532b84d0c41SHeiko Carstens union register_pair u, c; 533f75fa65dSHarald Freudenberger 534b84d0c41SHeiko Carstens u.even = (unsigned long)ucbuf; 535b84d0c41SHeiko Carstens u.odd = (unsigned long)ucbuf_len; 536b84d0c41SHeiko Carstens c.even = (unsigned long)cbuf; 537b84d0c41SHeiko Carstens c.odd = (unsigned long)cbuf_len; 538f75fa65dSHarald Freudenberger asm volatile ( 539b84d0c41SHeiko Carstens " lghi 0,%[fc]\n" 540f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 541f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 542b84d0c41SHeiko Carstens : [ucbuf] "+&d" (u.pair), [cbuf] "+&d" (c.pair) 543b84d0c41SHeiko Carstens : [fc] "K" (CPACF_PRNO_TRNG), [opc] "i" (CPACF_PRNO) 544b84d0c41SHeiko Carstens : "cc", "memory", "0"); 545f75fa65dSHarald Freudenberger } 546f75fa65dSHarald Freudenberger 547f75fa65dSHarald Freudenberger /** 548c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 549c7d4d259SMartin Schwidefsky * instruction 550c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 551c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 552c7d4d259SMartin Schwidefsky */ 5530177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 554c7d4d259SMartin Schwidefsky { 555c7d4d259SMartin Schwidefsky asm volatile( 556b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 557b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 558c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 559c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 560c7d4d259SMartin Schwidefsky : 561b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 562b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCC) 563b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 564c7d4d259SMartin Schwidefsky } 565c7d4d259SMartin Schwidefsky 56677606708SHarald Freudenberger /** 56777606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 56877606708SHarald Freudenberger * MANAGEMENT) instruction 56977606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 57077606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 57177606708SHarald Freudenberger * 57277606708SHarald Freudenberger * Returns 0. 57377606708SHarald Freudenberger */ 57477606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 57577606708SHarald Freudenberger { 57677606708SHarald Freudenberger asm volatile( 577b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 578b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 57977606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 58077606708SHarald Freudenberger : 581b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 582b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCKMO) 583b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 58477606708SHarald Freudenberger } 58577606708SHarald Freudenberger 586eecd49c4SPatrick Steuer /** 587eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 588eecd49c4SPatrick Steuer * instruction 589eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 590eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 591eecd49c4SPatrick Steuer * @dest: address of destination memory area 592eecd49c4SPatrick Steuer * @src: address of source memory area 593eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 594eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 595eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 596eecd49c4SPatrick Steuer */ 597eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 598eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 599eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 600eecd49c4SPatrick Steuer { 601b84d0c41SHeiko Carstens union register_pair d, s, a; 602eecd49c4SPatrick Steuer 603b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 604b84d0c41SHeiko Carstens s.even = (unsigned long)src; 605b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 606b84d0c41SHeiko Carstens a.even = (unsigned long)aad; 607b84d0c41SHeiko Carstens a.odd = (unsigned long)aad_len; 608eecd49c4SPatrick Steuer asm volatile( 609b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 610b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 611eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 612eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 613b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair), [src] "+&d" (s.pair), 614b84d0c41SHeiko Carstens [aad] "+&d" (a.pair) 615b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 616b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMA) 617b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 618eecd49c4SPatrick Steuer } 619eecd49c4SPatrick Steuer 620c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 621