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> 15*8c208bc5SIlya Leoshkevich #include <linux/kmsan-checks.h> 16c7d4d259SMartin Schwidefsky 17c7d4d259SMartin Schwidefsky /* 18c7d4d259SMartin Schwidefsky * Instruction opcodes for the CPACF instructions 19c7d4d259SMartin Schwidefsky */ 20c7d4d259SMartin Schwidefsky #define CPACF_KMAC 0xb91e /* MSA */ 21c7d4d259SMartin Schwidefsky #define CPACF_KM 0xb92e /* MSA */ 22c7d4d259SMartin Schwidefsky #define CPACF_KMC 0xb92f /* MSA */ 23c7d4d259SMartin Schwidefsky #define CPACF_KIMD 0xb93e /* MSA */ 24c7d4d259SMartin Schwidefsky #define CPACF_KLMD 0xb93f /* MSA */ 251afd43e0SDavid Hildenbrand #define CPACF_PCKMO 0xb928 /* MSA3 */ 261afd43e0SDavid Hildenbrand #define CPACF_KMF 0xb92a /* MSA4 */ 271afd43e0SDavid Hildenbrand #define CPACF_KMO 0xb92b /* MSA4 */ 28c7d4d259SMartin Schwidefsky #define CPACF_PCC 0xb92c /* MSA4 */ 29c7d4d259SMartin Schwidefsky #define CPACF_KMCTR 0xb92d /* MSA4 */ 30985a9d20SHarald Freudenberger #define CPACF_PRNO 0xb93c /* MSA5 */ 31152c1c8dSJason J. Herne #define CPACF_KMA 0xb929 /* MSA8 */ 3213209ad0SChristian Borntraeger #define CPACF_KDSA 0xb93a /* MSA9 */ 33c7d4d259SMartin Schwidefsky 34c7d4d259SMartin Schwidefsky /* 3527937843SMartin Schwidefsky * En/decryption modifier bits 36edc63a37SMartin Schwidefsky */ 3727937843SMartin Schwidefsky #define CPACF_ENCRYPT 0x00 38edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 39edc63a37SMartin Schwidefsky 40edc63a37SMartin Schwidefsky /* 41edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 42c7d4d259SMartin Schwidefsky */ 43c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 44edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 45edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 46edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 47edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 48edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 49edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 5027937843SMartin Schwidefsky #define CPACF_KM_PAES_128 0x1a 5127937843SMartin Schwidefsky #define CPACF_KM_PAES_192 0x1b 5227937843SMartin Schwidefsky #define CPACF_KM_PAES_256 0x1c 53edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 54edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 5527937843SMartin Schwidefsky #define CPACF_KM_PXTS_128 0x3a 5627937843SMartin Schwidefsky #define CPACF_KM_PXTS_256 0x3c 57c7d4d259SMartin Schwidefsky 58c7d4d259SMartin Schwidefsky /* 59c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 60edc63a37SMartin Schwidefsky * instruction 61c7d4d259SMartin Schwidefsky */ 62c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 63edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 64edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 65edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 66edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 67edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 68edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 6927937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 7027937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 7127937843SMartin Schwidefsky #define CPACF_KMC_PAES_256 0x1c 72c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 73c7d4d259SMartin Schwidefsky 74c7d4d259SMartin Schwidefsky /* 75c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 76edc63a37SMartin Schwidefsky * instruction 77c7d4d259SMartin Schwidefsky */ 78c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 79edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 80edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 81edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 82edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 83edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 84edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 8527937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 8627937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 8727937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_256 0x1c 88c7d4d259SMartin Schwidefsky 89c7d4d259SMartin Schwidefsky /* 90c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 91edc63a37SMartin Schwidefsky * instruction 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 973c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_224 0x20 983c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_256 0x21 993c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_384 0x22 1003c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_512 0x23 101c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 102c7d4d259SMartin Schwidefsky 103c7d4d259SMartin Schwidefsky /* 104c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 105edc63a37SMartin Schwidefsky * instruction 106c7d4d259SMartin Schwidefsky */ 107c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 108c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 109c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 110c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 1113c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_224 0x20 1123c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_256 0x21 1133c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_384 0x22 1143c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_512 0x23 115c7d4d259SMartin Schwidefsky 116c7d4d259SMartin Schwidefsky /* 117c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 118edc63a37SMartin Schwidefsky * instruction 119c7d4d259SMartin Schwidefsky */ 120c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 121c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 122c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 123c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 124c7d4d259SMartin Schwidefsky 125c7d4d259SMartin Schwidefsky /* 12677606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 12777606708SHarald Freudenberger * instruction 12877606708SHarald Freudenberger */ 12977606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 13077606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 13177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 13277606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 13377606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 13477606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 13577606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 1369e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P256_KEY 0x20 1379e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P384_KEY 0x21 1389e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P521_KEY 0x22 1399e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_ED25519_KEY 0x28 1409e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_ED448_KEY 0x29 14177606708SHarald Freudenberger 14277606708SHarald Freudenberger /* 143985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 144edc63a37SMartin Schwidefsky * instruction 145c7d4d259SMartin Schwidefsky */ 146985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 147985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 148985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 149f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 150f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 151c7d4d259SMartin Schwidefsky 152eecd49c4SPatrick Steuer /* 153eecd49c4SPatrick Steuer * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 154eecd49c4SPatrick Steuer * instruction 155eecd49c4SPatrick Steuer */ 156eecd49c4SPatrick Steuer #define CPACF_KMA_QUERY 0x00 157eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_128 0x12 158eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_192 0x13 159eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_256 0x14 160eecd49c4SPatrick Steuer 161eecd49c4SPatrick Steuer /* 162eecd49c4SPatrick Steuer * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction 163eecd49c4SPatrick Steuer */ 164eecd49c4SPatrick Steuer #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */ 165eecd49c4SPatrick Steuer #define CPACF_KMA_LAAD 0x200 /* Last-AAD */ 166eecd49c4SPatrick Steuer #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */ 167eecd49c4SPatrick Steuer 16869c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 16969c0e360SMartin Schwidefsky 17032e8bd64SHarald Freudenberger /* 17132e8bd64SHarald Freudenberger * Prototype for a not existing function to produce a link 17232e8bd64SHarald Freudenberger * error if __cpacf_query() or __cpacf_check_opcode() is used 17332e8bd64SHarald Freudenberger * with an invalid compile time const opcode. 17432e8bd64SHarald Freudenberger */ 17532e8bd64SHarald Freudenberger void __cpacf_bad_opcode(void); 17632e8bd64SHarald Freudenberger 177830999bdSHarald Freudenberger static __always_inline void __cpacf_query_rre(u32 opc, u8 r1, u8 r2, 178830999bdSHarald Freudenberger cpacf_mask_t *mask) 179c7d4d259SMartin Schwidefsky { 180c7d4d259SMartin Schwidefsky asm volatile( 181830999bdSHarald Freudenberger " la %%r1,%[mask]\n" 182830999bdSHarald Freudenberger " xgr %%r0,%%r0\n" 183830999bdSHarald Freudenberger " .insn rre,%[opc] << 16,%[r1],%[r2]\n" 184830999bdSHarald Freudenberger : [mask] "=R" (*mask) 185830999bdSHarald Freudenberger : [opc] "i" (opc), 186830999bdSHarald Freudenberger [r1] "i" (r1), [r2] "i" (r2) 187830999bdSHarald Freudenberger : "cc", "r0", "r1"); 188830999bdSHarald Freudenberger } 189830999bdSHarald Freudenberger 190830999bdSHarald Freudenberger static __always_inline void __cpacf_query_rrf(u32 opc, 191830999bdSHarald Freudenberger u8 r1, u8 r2, u8 r3, u8 m4, 192830999bdSHarald Freudenberger cpacf_mask_t *mask) 193830999bdSHarald Freudenberger { 194830999bdSHarald Freudenberger asm volatile( 195830999bdSHarald Freudenberger " la %%r1,%[mask]\n" 196830999bdSHarald Freudenberger " xgr %%r0,%%r0\n" 197830999bdSHarald Freudenberger " .insn rrf,%[opc] << 16,%[r1],%[r2],%[r3],%[m4]\n" 198830999bdSHarald Freudenberger : [mask] "=R" (*mask) 199830999bdSHarald Freudenberger : [opc] "i" (opc), [r1] "i" (r1), [r2] "i" (r2), 200830999bdSHarald Freudenberger [r3] "i" (r3), [m4] "i" (m4) 201830999bdSHarald Freudenberger : "cc", "r0", "r1"); 202830999bdSHarald Freudenberger } 203830999bdSHarald Freudenberger 204830999bdSHarald Freudenberger static __always_inline void __cpacf_query(unsigned int opcode, 205830999bdSHarald Freudenberger cpacf_mask_t *mask) 206830999bdSHarald Freudenberger { 207830999bdSHarald Freudenberger switch (opcode) { 208830999bdSHarald Freudenberger case CPACF_KDSA: 209830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KDSA, 0, 2, mask); 210830999bdSHarald Freudenberger break; 211830999bdSHarald Freudenberger case CPACF_KIMD: 212830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KIMD, 0, 2, mask); 213830999bdSHarald Freudenberger break; 214830999bdSHarald Freudenberger case CPACF_KLMD: 215830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KLMD, 0, 2, mask); 216830999bdSHarald Freudenberger break; 217830999bdSHarald Freudenberger case CPACF_KM: 218830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KM, 2, 4, mask); 219830999bdSHarald Freudenberger break; 220830999bdSHarald Freudenberger case CPACF_KMA: 221830999bdSHarald Freudenberger __cpacf_query_rrf(CPACF_KMA, 2, 4, 6, 0, mask); 222830999bdSHarald Freudenberger break; 223830999bdSHarald Freudenberger case CPACF_KMAC: 224830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMAC, 0, 2, mask); 225830999bdSHarald Freudenberger break; 226830999bdSHarald Freudenberger case CPACF_KMC: 227830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMC, 2, 4, mask); 228830999bdSHarald Freudenberger break; 229830999bdSHarald Freudenberger case CPACF_KMCTR: 230830999bdSHarald Freudenberger __cpacf_query_rrf(CPACF_KMCTR, 2, 4, 6, 0, mask); 231830999bdSHarald Freudenberger break; 232830999bdSHarald Freudenberger case CPACF_KMF: 233830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMF, 2, 4, mask); 234830999bdSHarald Freudenberger break; 235830999bdSHarald Freudenberger case CPACF_KMO: 236830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMO, 2, 4, mask); 237830999bdSHarald Freudenberger break; 238830999bdSHarald Freudenberger case CPACF_PCC: 239830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PCC, 0, 0, mask); 240830999bdSHarald Freudenberger break; 241830999bdSHarald Freudenberger case CPACF_PCKMO: 242830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PCKMO, 0, 0, mask); 243830999bdSHarald Freudenberger break; 244830999bdSHarald Freudenberger case CPACF_PRNO: 245830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PRNO, 2, 4, mask); 246830999bdSHarald Freudenberger break; 247830999bdSHarald Freudenberger default: 24832e8bd64SHarald Freudenberger __cpacf_bad_opcode(); 249830999bdSHarald Freudenberger } 250c7d4d259SMartin Schwidefsky } 251c7d4d259SMartin Schwidefsky 252d83623c5SMasahiro Yamada static __always_inline int __cpacf_check_opcode(unsigned int opcode) 253c7d4d259SMartin Schwidefsky { 254c7d4d259SMartin Schwidefsky switch (opcode) { 255c7d4d259SMartin Schwidefsky case CPACF_KMAC: 256c7d4d259SMartin Schwidefsky case CPACF_KM: 257c7d4d259SMartin Schwidefsky case CPACF_KMC: 258c7d4d259SMartin Schwidefsky case CPACF_KIMD: 259c7d4d259SMartin Schwidefsky case CPACF_KLMD: 26069c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 2611afd43e0SDavid Hildenbrand case CPACF_PCKMO: 26269c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 2631afd43e0SDavid Hildenbrand case CPACF_KMF: 2641afd43e0SDavid Hildenbrand case CPACF_KMO: 265c7d4d259SMartin Schwidefsky case CPACF_PCC: 266c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 26769c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 268985a9d20SHarald Freudenberger case CPACF_PRNO: 26969c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 270eecd49c4SPatrick Steuer case CPACF_KMA: 271eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 272c7d4d259SMartin Schwidefsky default: 27332e8bd64SHarald Freudenberger __cpacf_bad_opcode(); 27432e8bd64SHarald Freudenberger return 0; 275c7d4d259SMartin Schwidefsky } 27669c0e360SMartin Schwidefsky } 27769c0e360SMartin Schwidefsky 278830999bdSHarald Freudenberger /** 279830999bdSHarald Freudenberger * cpacf_query() - check if a specific CPACF function is available 280830999bdSHarald Freudenberger * @opcode: the opcode of the crypto instruction 281830999bdSHarald Freudenberger * @func: the function code to test for 282830999bdSHarald Freudenberger * 283830999bdSHarald Freudenberger * Executes the query function for the given crypto instruction @opcode 284830999bdSHarald Freudenberger * and checks if @func is available 285830999bdSHarald Freudenberger * 286830999bdSHarald Freudenberger * Returns 1 if @func is available for @opcode, 0 otherwise 287830999bdSHarald Freudenberger */ 288e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 28969c0e360SMartin Schwidefsky { 29069c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 29169c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 29269c0e360SMartin Schwidefsky return 1; 29369c0e360SMartin Schwidefsky } 29469c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 29569c0e360SMartin Schwidefsky return 0; 29669c0e360SMartin Schwidefsky } 29769c0e360SMartin Schwidefsky 29869c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 29969c0e360SMartin Schwidefsky { 30069c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 30169c0e360SMartin Schwidefsky } 30269c0e360SMartin Schwidefsky 303d83623c5SMasahiro Yamada static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func) 30469c0e360SMartin Schwidefsky { 30569c0e360SMartin Schwidefsky cpacf_mask_t mask; 30669c0e360SMartin Schwidefsky 30769c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 30869c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 30969c0e360SMartin Schwidefsky return 0; 310c7d4d259SMartin Schwidefsky } 311c7d4d259SMartin Schwidefsky 312c7d4d259SMartin Schwidefsky /** 313c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 314c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 315c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 316c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 317c7d4d259SMartin Schwidefsky * @src: address of source memory area 318c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 319c7d4d259SMartin Schwidefsky * 320c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 321c7d4d259SMartin Schwidefsky * encryption/decryption funcs 322c7d4d259SMartin Schwidefsky */ 323edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 324c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 325c7d4d259SMartin Schwidefsky { 326b84d0c41SHeiko Carstens union register_pair d, s; 327c7d4d259SMartin Schwidefsky 328b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 329b84d0c41SHeiko Carstens s.even = (unsigned long)src; 330b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 331c7d4d259SMartin Schwidefsky asm volatile( 332b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 333b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 334c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 335c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 336b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 337b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 338b84d0c41SHeiko Carstens [opc] "i" (CPACF_KM) 339b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 340c7d4d259SMartin Schwidefsky 341b84d0c41SHeiko Carstens return src_len - s.odd; 342c7d4d259SMartin Schwidefsky } 343c7d4d259SMartin Schwidefsky 344c7d4d259SMartin Schwidefsky /** 345c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 346c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 347c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 348c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 349c7d4d259SMartin Schwidefsky * @src: address of source memory area 350c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 351c7d4d259SMartin Schwidefsky * 352c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 353c7d4d259SMartin Schwidefsky * encryption/decryption funcs 354c7d4d259SMartin Schwidefsky */ 355edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 356c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 357c7d4d259SMartin Schwidefsky { 358b84d0c41SHeiko Carstens union register_pair d, s; 359c7d4d259SMartin Schwidefsky 360b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 361b84d0c41SHeiko Carstens s.even = (unsigned long)src; 362b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 363c7d4d259SMartin Schwidefsky asm volatile( 364b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 365b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 366c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 367c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 368b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 369b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 370b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMC) 371b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 372c7d4d259SMartin Schwidefsky 373b84d0c41SHeiko Carstens return src_len - s.odd; 374c7d4d259SMartin Schwidefsky } 375c7d4d259SMartin Schwidefsky 376c7d4d259SMartin Schwidefsky /** 377c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 378c7d4d259SMartin Schwidefsky * instruction 379c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 380c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 381c7d4d259SMartin Schwidefsky * @src: address of source memory area 382c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 383c7d4d259SMartin Schwidefsky */ 3840177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 385c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 386c7d4d259SMartin Schwidefsky { 387b84d0c41SHeiko Carstens union register_pair s; 388c7d4d259SMartin Schwidefsky 389b84d0c41SHeiko Carstens s.even = (unsigned long)src; 390b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 391c7d4d259SMartin Schwidefsky asm volatile( 392b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 393b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 394c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 395c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 396b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 397b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)(param)), 398b84d0c41SHeiko Carstens [opc] "i" (CPACF_KIMD) 399b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 400c7d4d259SMartin Schwidefsky } 401c7d4d259SMartin Schwidefsky 402c7d4d259SMartin Schwidefsky /** 403c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 404c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 405c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 406c7d4d259SMartin Schwidefsky * @src: address of source memory area 407c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 408c7d4d259SMartin Schwidefsky */ 4090177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 410c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 411c7d4d259SMartin Schwidefsky { 412b84d0c41SHeiko Carstens union register_pair s; 413c7d4d259SMartin Schwidefsky 414b84d0c41SHeiko Carstens s.even = (unsigned long)src; 415b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 416c7d4d259SMartin Schwidefsky asm volatile( 417b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 418b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 419c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 420c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 421b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 422b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 423b84d0c41SHeiko Carstens [opc] "i" (CPACF_KLMD) 424b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 425c7d4d259SMartin Schwidefsky } 426c7d4d259SMartin Schwidefsky 427c7d4d259SMartin Schwidefsky /** 428c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 429c7d4d259SMartin Schwidefsky * instruction 430c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 431c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 432c7d4d259SMartin Schwidefsky * @src: address of source memory area 433c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 434c7d4d259SMartin Schwidefsky * 435c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 436c7d4d259SMartin Schwidefsky */ 437edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 438c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 439c7d4d259SMartin Schwidefsky { 440b84d0c41SHeiko Carstens union register_pair s; 441c7d4d259SMartin Schwidefsky 442b84d0c41SHeiko Carstens s.even = (unsigned long)src; 443b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 444c7d4d259SMartin Schwidefsky asm volatile( 445b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 446b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 447c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 448c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 449b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 450b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 451b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMAC) 452b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 453c7d4d259SMartin Schwidefsky 454b84d0c41SHeiko Carstens return src_len - s.odd; 455c7d4d259SMartin Schwidefsky } 456c7d4d259SMartin Schwidefsky 457c7d4d259SMartin Schwidefsky /** 458c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 459c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 460c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 461c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 462c7d4d259SMartin Schwidefsky * @src: address of source memory area 463c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 464c7d4d259SMartin Schwidefsky * @counter: address of counter value 465c7d4d259SMartin Schwidefsky * 466c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 467c7d4d259SMartin Schwidefsky * encryption/decryption funcs 468c7d4d259SMartin Schwidefsky */ 469edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 470c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 471c7d4d259SMartin Schwidefsky { 472b84d0c41SHeiko Carstens union register_pair d, s, c; 473c7d4d259SMartin Schwidefsky 474b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 475b84d0c41SHeiko Carstens s.even = (unsigned long)src; 476b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 477b84d0c41SHeiko Carstens c.even = (unsigned long)counter; 478c7d4d259SMartin Schwidefsky asm volatile( 479b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 480b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 481c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 482c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 483b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair), 484b84d0c41SHeiko Carstens [ctr] "+&d" (c.pair) 485b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 486b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMCTR) 487b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 488c7d4d259SMartin Schwidefsky 489b84d0c41SHeiko Carstens return src_len - s.odd; 490c7d4d259SMartin Schwidefsky } 491c7d4d259SMartin Schwidefsky 492c7d4d259SMartin Schwidefsky /** 493985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 494c7d4d259SMartin Schwidefsky * instruction 495985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 496c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 497c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 498c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 499c7d4d259SMartin Schwidefsky * @seed: address of seed data 500c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 501c7d4d259SMartin Schwidefsky */ 502985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 503f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 504f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 505c7d4d259SMartin Schwidefsky { 506b84d0c41SHeiko Carstens union register_pair d, s; 507c7d4d259SMartin Schwidefsky 508b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 509b84d0c41SHeiko Carstens d.odd = (unsigned long)dest_len; 510b84d0c41SHeiko Carstens s.even = (unsigned long)seed; 511b84d0c41SHeiko Carstens s.odd = (unsigned long)seed_len; 512c7d4d259SMartin Schwidefsky asm volatile ( 513b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 514b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 515c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 516c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 517b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair) 518b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 519b84d0c41SHeiko Carstens [seed] "d" (s.pair), [opc] "i" (CPACF_PRNO) 520b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 521c7d4d259SMartin Schwidefsky } 522c7d4d259SMartin Schwidefsky 523c7d4d259SMartin Schwidefsky /** 524f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 525f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 526f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 527f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 528f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 529f75fa65dSHarald Freudenberger */ 530f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 531f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 532f75fa65dSHarald Freudenberger { 533b84d0c41SHeiko Carstens union register_pair u, c; 534f75fa65dSHarald Freudenberger 535b84d0c41SHeiko Carstens u.even = (unsigned long)ucbuf; 536b84d0c41SHeiko Carstens u.odd = (unsigned long)ucbuf_len; 537b84d0c41SHeiko Carstens c.even = (unsigned long)cbuf; 538b84d0c41SHeiko Carstens c.odd = (unsigned long)cbuf_len; 539f75fa65dSHarald Freudenberger asm volatile ( 540b84d0c41SHeiko Carstens " lghi 0,%[fc]\n" 541f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 542f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 543b84d0c41SHeiko Carstens : [ucbuf] "+&d" (u.pair), [cbuf] "+&d" (c.pair) 544b84d0c41SHeiko Carstens : [fc] "K" (CPACF_PRNO_TRNG), [opc] "i" (CPACF_PRNO) 545b84d0c41SHeiko Carstens : "cc", "memory", "0"); 546*8c208bc5SIlya Leoshkevich kmsan_unpoison_memory(ucbuf, ucbuf_len); 547*8c208bc5SIlya Leoshkevich kmsan_unpoison_memory(cbuf, cbuf_len); 548f75fa65dSHarald Freudenberger } 549f75fa65dSHarald Freudenberger 550f75fa65dSHarald Freudenberger /** 551c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 552c7d4d259SMartin Schwidefsky * instruction 553c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 554c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 555c7d4d259SMartin Schwidefsky */ 5560177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 557c7d4d259SMartin Schwidefsky { 558c7d4d259SMartin Schwidefsky asm volatile( 559b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 560b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 561c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 562c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 563c7d4d259SMartin Schwidefsky : 564b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 565b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCC) 566b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 567c7d4d259SMartin Schwidefsky } 568c7d4d259SMartin Schwidefsky 56977606708SHarald Freudenberger /** 57077606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 57177606708SHarald Freudenberger * MANAGEMENT) instruction 57277606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 57377606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 57477606708SHarald Freudenberger * 57577606708SHarald Freudenberger * Returns 0. 57677606708SHarald Freudenberger */ 57777606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 57877606708SHarald Freudenberger { 57977606708SHarald Freudenberger asm volatile( 580b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 581b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 58277606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 58377606708SHarald Freudenberger : 584b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 585b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCKMO) 586b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 58777606708SHarald Freudenberger } 58877606708SHarald Freudenberger 589eecd49c4SPatrick Steuer /** 590eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 591eecd49c4SPatrick Steuer * instruction 592eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 593eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 594eecd49c4SPatrick Steuer * @dest: address of destination memory area 595eecd49c4SPatrick Steuer * @src: address of source memory area 596eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 597eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 598eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 599eecd49c4SPatrick Steuer */ 600eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 601eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 602eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 603eecd49c4SPatrick Steuer { 604b84d0c41SHeiko Carstens union register_pair d, s, a; 605eecd49c4SPatrick Steuer 606b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 607b84d0c41SHeiko Carstens s.even = (unsigned long)src; 608b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 609b84d0c41SHeiko Carstens a.even = (unsigned long)aad; 610b84d0c41SHeiko Carstens a.odd = (unsigned long)aad_len; 611eecd49c4SPatrick Steuer asm volatile( 612b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 613b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 614eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 615eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 616b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair), [src] "+&d" (s.pair), 617b84d0c41SHeiko Carstens [aad] "+&d" (a.pair) 618b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 619b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMA) 620b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 621eecd49c4SPatrick Steuer } 622eecd49c4SPatrick Steuer 623c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 624