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> 158c208bc5SIlya 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 5780625b67SHolger Dengler #define CPACF_KM_XTS_128_FULL 0x52 5880625b67SHolger Dengler #define CPACF_KM_XTS_256_FULL 0x54 59c7d4d259SMartin Schwidefsky 60c7d4d259SMartin Schwidefsky /* 61c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 62edc63a37SMartin Schwidefsky * instruction 63c7d4d259SMartin Schwidefsky */ 64c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 65edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 66edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 67edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 68edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 69edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 70edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 7127937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 7227937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 7327937843SMartin Schwidefsky #define CPACF_KMC_PAES_256 0x1c 74c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 75c7d4d259SMartin Schwidefsky 76c7d4d259SMartin Schwidefsky /* 77c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 78edc63a37SMartin Schwidefsky * instruction 79c7d4d259SMartin Schwidefsky */ 80c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 81edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 82edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 83edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 84edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 85edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 86edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 8727937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 8827937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 8927937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_256 0x1c 90c7d4d259SMartin Schwidefsky 91c7d4d259SMartin Schwidefsky /* 92c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 93edc63a37SMartin Schwidefsky * instruction 94c7d4d259SMartin Schwidefsky */ 95c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 96c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 97c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 98c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 993c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_224 0x20 1003c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_256 0x21 1013c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_384 0x22 1023c2eb6b7SJoerg Schmidbauer #define CPACF_KIMD_SHA3_512 0x23 103c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 104c7d4d259SMartin Schwidefsky 105c7d4d259SMartin Schwidefsky /* 106c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 107edc63a37SMartin Schwidefsky * instruction 108c7d4d259SMartin Schwidefsky */ 109c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 110c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 111c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 112c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 1133c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_224 0x20 1143c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_256 0x21 1153c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_384 0x22 1163c2eb6b7SJoerg Schmidbauer #define CPACF_KLMD_SHA3_512 0x23 117c7d4d259SMartin Schwidefsky 118c7d4d259SMartin Schwidefsky /* 119c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 120edc63a37SMartin Schwidefsky * instruction 121c7d4d259SMartin Schwidefsky */ 122c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 123c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 124c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 125c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 126c3dcb058SHolger Dengler #define CPACF_KMAC_HMAC_SHA_224 0x70 127c3dcb058SHolger Dengler #define CPACF_KMAC_HMAC_SHA_256 0x71 128c3dcb058SHolger Dengler #define CPACF_KMAC_HMAC_SHA_384 0x72 129c3dcb058SHolger Dengler #define CPACF_KMAC_HMAC_SHA_512 0x73 130c7d4d259SMartin Schwidefsky 131c7d4d259SMartin Schwidefsky /* 13277606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 13377606708SHarald Freudenberger * instruction 13477606708SHarald Freudenberger */ 13577606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 13677606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 13777606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 13877606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 13977606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 14077606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 14177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 142*8fe32188SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_XTS_128_DOUBLE_KEY 0x15 143*8fe32188SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_XTS_256_DOUBLE_KEY 0x16 1449e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P256_KEY 0x20 1459e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P384_KEY 0x21 1469e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_P521_KEY 0x22 1479e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_ED25519_KEY 0x28 1489e436c19SHarald Freudenberger #define CPACF_PCKMO_ENC_ECC_ED448_KEY 0x29 149*8fe32188SHarald Freudenberger #define CPACF_PCKMO_ENC_HMAC_512_KEY 0x76 150*8fe32188SHarald Freudenberger #define CPACF_PCKMO_ENC_HMAC_1024_KEY 0x7a 15177606708SHarald Freudenberger 15277606708SHarald Freudenberger /* 153985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 154edc63a37SMartin Schwidefsky * instruction 155c7d4d259SMartin Schwidefsky */ 156985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 157985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 158985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 159f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 160f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 161c7d4d259SMartin Schwidefsky 162eecd49c4SPatrick Steuer /* 163eecd49c4SPatrick Steuer * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 164eecd49c4SPatrick Steuer * instruction 165eecd49c4SPatrick Steuer */ 166eecd49c4SPatrick Steuer #define CPACF_KMA_QUERY 0x00 167eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_128 0x12 168eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_192 0x13 169eecd49c4SPatrick Steuer #define CPACF_KMA_GCM_AES_256 0x14 170eecd49c4SPatrick Steuer 171eecd49c4SPatrick Steuer /* 172eecd49c4SPatrick Steuer * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction 173eecd49c4SPatrick Steuer */ 174eecd49c4SPatrick Steuer #define CPACF_KMA_LPC 0x100 /* Last-Plaintext/Ciphertext */ 175eecd49c4SPatrick Steuer #define CPACF_KMA_LAAD 0x200 /* Last-AAD */ 176eecd49c4SPatrick Steuer #define CPACF_KMA_HS 0x400 /* Hash-subkey Supplied */ 177eecd49c4SPatrick Steuer 17888c02b3fSJoerg Schmidbauer /* 17988c02b3fSJoerg Schmidbauer * Flags for the KIMD/KLMD (COMPUTE INTERMEDIATE/LAST MESSAGE DIGEST) 18088c02b3fSJoerg Schmidbauer * instructions 18188c02b3fSJoerg Schmidbauer */ 18288c02b3fSJoerg Schmidbauer #define CPACF_KIMD_NIP 0x8000 18388c02b3fSJoerg Schmidbauer #define CPACF_KLMD_DUFOP 0x4000 18488c02b3fSJoerg Schmidbauer #define CPACF_KLMD_NIP 0x8000 18588c02b3fSJoerg Schmidbauer 18669c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 18769c0e360SMartin Schwidefsky 18832e8bd64SHarald Freudenberger /* 18932e8bd64SHarald Freudenberger * Prototype for a not existing function to produce a link 19032e8bd64SHarald Freudenberger * error if __cpacf_query() or __cpacf_check_opcode() is used 19132e8bd64SHarald Freudenberger * with an invalid compile time const opcode. 19232e8bd64SHarald Freudenberger */ 19332e8bd64SHarald Freudenberger void __cpacf_bad_opcode(void); 19432e8bd64SHarald Freudenberger 195830999bdSHarald Freudenberger static __always_inline void __cpacf_query_rre(u32 opc, u8 r1, u8 r2, 196830999bdSHarald Freudenberger cpacf_mask_t *mask) 197c7d4d259SMartin Schwidefsky { 198c7d4d259SMartin Schwidefsky asm volatile( 199830999bdSHarald Freudenberger " la %%r1,%[mask]\n" 200830999bdSHarald Freudenberger " xgr %%r0,%%r0\n" 201830999bdSHarald Freudenberger " .insn rre,%[opc] << 16,%[r1],%[r2]\n" 202830999bdSHarald Freudenberger : [mask] "=R" (*mask) 203830999bdSHarald Freudenberger : [opc] "i" (opc), 204830999bdSHarald Freudenberger [r1] "i" (r1), [r2] "i" (r2) 205830999bdSHarald Freudenberger : "cc", "r0", "r1"); 206830999bdSHarald Freudenberger } 207830999bdSHarald Freudenberger 208830999bdSHarald Freudenberger static __always_inline void __cpacf_query_rrf(u32 opc, 209830999bdSHarald Freudenberger u8 r1, u8 r2, u8 r3, u8 m4, 210830999bdSHarald Freudenberger cpacf_mask_t *mask) 211830999bdSHarald Freudenberger { 212830999bdSHarald Freudenberger asm volatile( 213830999bdSHarald Freudenberger " la %%r1,%[mask]\n" 214830999bdSHarald Freudenberger " xgr %%r0,%%r0\n" 215830999bdSHarald Freudenberger " .insn rrf,%[opc] << 16,%[r1],%[r2],%[r3],%[m4]\n" 216830999bdSHarald Freudenberger : [mask] "=R" (*mask) 217830999bdSHarald Freudenberger : [opc] "i" (opc), [r1] "i" (r1), [r2] "i" (r2), 218830999bdSHarald Freudenberger [r3] "i" (r3), [m4] "i" (m4) 219830999bdSHarald Freudenberger : "cc", "r0", "r1"); 220830999bdSHarald Freudenberger } 221830999bdSHarald Freudenberger 222830999bdSHarald Freudenberger static __always_inline void __cpacf_query(unsigned int opcode, 223830999bdSHarald Freudenberger cpacf_mask_t *mask) 224830999bdSHarald Freudenberger { 225830999bdSHarald Freudenberger switch (opcode) { 226830999bdSHarald Freudenberger case CPACF_KDSA: 227830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KDSA, 0, 2, mask); 228830999bdSHarald Freudenberger break; 229830999bdSHarald Freudenberger case CPACF_KIMD: 230830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KIMD, 0, 2, mask); 231830999bdSHarald Freudenberger break; 232830999bdSHarald Freudenberger case CPACF_KLMD: 233830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KLMD, 0, 2, mask); 234830999bdSHarald Freudenberger break; 235830999bdSHarald Freudenberger case CPACF_KM: 236830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KM, 2, 4, mask); 237830999bdSHarald Freudenberger break; 238830999bdSHarald Freudenberger case CPACF_KMA: 239830999bdSHarald Freudenberger __cpacf_query_rrf(CPACF_KMA, 2, 4, 6, 0, mask); 240830999bdSHarald Freudenberger break; 241830999bdSHarald Freudenberger case CPACF_KMAC: 242830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMAC, 0, 2, mask); 243830999bdSHarald Freudenberger break; 244830999bdSHarald Freudenberger case CPACF_KMC: 245830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMC, 2, 4, mask); 246830999bdSHarald Freudenberger break; 247830999bdSHarald Freudenberger case CPACF_KMCTR: 248830999bdSHarald Freudenberger __cpacf_query_rrf(CPACF_KMCTR, 2, 4, 6, 0, mask); 249830999bdSHarald Freudenberger break; 250830999bdSHarald Freudenberger case CPACF_KMF: 251830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMF, 2, 4, mask); 252830999bdSHarald Freudenberger break; 253830999bdSHarald Freudenberger case CPACF_KMO: 254830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_KMO, 2, 4, mask); 255830999bdSHarald Freudenberger break; 256830999bdSHarald Freudenberger case CPACF_PCC: 257830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PCC, 0, 0, mask); 258830999bdSHarald Freudenberger break; 259830999bdSHarald Freudenberger case CPACF_PCKMO: 260830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PCKMO, 0, 0, mask); 261830999bdSHarald Freudenberger break; 262830999bdSHarald Freudenberger case CPACF_PRNO: 263830999bdSHarald Freudenberger __cpacf_query_rre(CPACF_PRNO, 2, 4, mask); 264830999bdSHarald Freudenberger break; 265830999bdSHarald Freudenberger default: 26632e8bd64SHarald Freudenberger __cpacf_bad_opcode(); 267830999bdSHarald Freudenberger } 268c7d4d259SMartin Schwidefsky } 269c7d4d259SMartin Schwidefsky 270d83623c5SMasahiro Yamada static __always_inline int __cpacf_check_opcode(unsigned int opcode) 271c7d4d259SMartin Schwidefsky { 272c7d4d259SMartin Schwidefsky switch (opcode) { 273c7d4d259SMartin Schwidefsky case CPACF_KMAC: 274c7d4d259SMartin Schwidefsky case CPACF_KM: 275c7d4d259SMartin Schwidefsky case CPACF_KMC: 276c7d4d259SMartin Schwidefsky case CPACF_KIMD: 277c7d4d259SMartin Schwidefsky case CPACF_KLMD: 27869c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 2791afd43e0SDavid Hildenbrand case CPACF_PCKMO: 28069c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 2811afd43e0SDavid Hildenbrand case CPACF_KMF: 2821afd43e0SDavid Hildenbrand case CPACF_KMO: 283c7d4d259SMartin Schwidefsky case CPACF_PCC: 284c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 28569c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 286985a9d20SHarald Freudenberger case CPACF_PRNO: 28769c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 288eecd49c4SPatrick Steuer case CPACF_KMA: 289eecd49c4SPatrick Steuer return test_facility(146); /* check for MSA8 */ 290c7d4d259SMartin Schwidefsky default: 29132e8bd64SHarald Freudenberger __cpacf_bad_opcode(); 29232e8bd64SHarald Freudenberger return 0; 293c7d4d259SMartin Schwidefsky } 29469c0e360SMartin Schwidefsky } 29569c0e360SMartin Schwidefsky 296830999bdSHarald Freudenberger /** 297830999bdSHarald Freudenberger * cpacf_query() - check if a specific CPACF function is available 298830999bdSHarald Freudenberger * @opcode: the opcode of the crypto instruction 299830999bdSHarald Freudenberger * @func: the function code to test for 300830999bdSHarald Freudenberger * 301830999bdSHarald Freudenberger * Executes the query function for the given crypto instruction @opcode 302830999bdSHarald Freudenberger * and checks if @func is available 303830999bdSHarald Freudenberger * 304830999bdSHarald Freudenberger * Returns 1 if @func is available for @opcode, 0 otherwise 305830999bdSHarald Freudenberger */ 306e60fb8bfSMasahiro Yamada static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 30769c0e360SMartin Schwidefsky { 30869c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 30969c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 31069c0e360SMartin Schwidefsky return 1; 31169c0e360SMartin Schwidefsky } 31269c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 31369c0e360SMartin Schwidefsky return 0; 31469c0e360SMartin Schwidefsky } 31569c0e360SMartin Schwidefsky 31669c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 31769c0e360SMartin Schwidefsky { 31869c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 31969c0e360SMartin Schwidefsky } 32069c0e360SMartin Schwidefsky 321d83623c5SMasahiro Yamada static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func) 32269c0e360SMartin Schwidefsky { 32369c0e360SMartin Schwidefsky cpacf_mask_t mask; 32469c0e360SMartin Schwidefsky 32569c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 32669c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 32769c0e360SMartin Schwidefsky return 0; 328c7d4d259SMartin Schwidefsky } 329c7d4d259SMartin Schwidefsky 330c7d4d259SMartin Schwidefsky /** 331c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 332c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 333c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 334c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 335c7d4d259SMartin Schwidefsky * @src: address of source memory area 336c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 337c7d4d259SMartin Schwidefsky * 338c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 339c7d4d259SMartin Schwidefsky * encryption/decryption funcs 340c7d4d259SMartin Schwidefsky */ 341edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 342c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 343c7d4d259SMartin Schwidefsky { 344b84d0c41SHeiko Carstens union register_pair d, s; 345c7d4d259SMartin Schwidefsky 346b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 347b84d0c41SHeiko Carstens s.even = (unsigned long)src; 348b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 349c7d4d259SMartin Schwidefsky asm volatile( 350b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 351b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 352c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 353c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 354b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 355b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 356b84d0c41SHeiko Carstens [opc] "i" (CPACF_KM) 357b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 358c7d4d259SMartin Schwidefsky 359b84d0c41SHeiko Carstens return src_len - s.odd; 360c7d4d259SMartin Schwidefsky } 361c7d4d259SMartin Schwidefsky 362c7d4d259SMartin Schwidefsky /** 363c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 364c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 365c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 366c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 367c7d4d259SMartin Schwidefsky * @src: address of source memory area 368c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 369c7d4d259SMartin Schwidefsky * 370c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 371c7d4d259SMartin Schwidefsky * encryption/decryption funcs 372c7d4d259SMartin Schwidefsky */ 373edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 374c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 375c7d4d259SMartin Schwidefsky { 376b84d0c41SHeiko Carstens union register_pair d, s; 377c7d4d259SMartin Schwidefsky 378b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 379b84d0c41SHeiko Carstens s.even = (unsigned long)src; 380b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 381c7d4d259SMartin Schwidefsky asm volatile( 382b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 383b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 384c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 385c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 386b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair) 387b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 388b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMC) 389b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 390c7d4d259SMartin Schwidefsky 391b84d0c41SHeiko Carstens return src_len - s.odd; 392c7d4d259SMartin Schwidefsky } 393c7d4d259SMartin Schwidefsky 394c7d4d259SMartin Schwidefsky /** 395c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 396c7d4d259SMartin Schwidefsky * instruction 397c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 398c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 399c7d4d259SMartin Schwidefsky * @src: address of source memory area 400c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 401c7d4d259SMartin Schwidefsky */ 4020177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 403c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 404c7d4d259SMartin Schwidefsky { 405b84d0c41SHeiko Carstens union register_pair s; 406c7d4d259SMartin Schwidefsky 407b84d0c41SHeiko Carstens s.even = (unsigned long)src; 408b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 409c7d4d259SMartin Schwidefsky asm volatile( 410b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 411b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 41288c02b3fSJoerg Schmidbauer "0: .insn rrf,%[opc] << 16,0,%[src],8,0\n" 413c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 414b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 415b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)(param)), 416b84d0c41SHeiko Carstens [opc] "i" (CPACF_KIMD) 417b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 418c7d4d259SMartin Schwidefsky } 419c7d4d259SMartin Schwidefsky 420c7d4d259SMartin Schwidefsky /** 421c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 422c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 423c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 424c7d4d259SMartin Schwidefsky * @src: address of source memory area 425c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 426c7d4d259SMartin Schwidefsky */ 4270177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 428c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 429c7d4d259SMartin Schwidefsky { 430b84d0c41SHeiko Carstens union register_pair s; 431c7d4d259SMartin Schwidefsky 432b84d0c41SHeiko Carstens s.even = (unsigned long)src; 433b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 434c7d4d259SMartin Schwidefsky asm volatile( 435b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 436b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 43788c02b3fSJoerg Schmidbauer "0: .insn rrf,%[opc] << 16,0,%[src],8,0\n" 438c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 439b84d0c41SHeiko Carstens : [src] "+&d" (s.pair) 440b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 441b84d0c41SHeiko Carstens [opc] "i" (CPACF_KLMD) 442b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 443c7d4d259SMartin Schwidefsky } 444c7d4d259SMartin Schwidefsky 445c7d4d259SMartin Schwidefsky /** 446c3dcb058SHolger Dengler * _cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 447c3dcb058SHolger Dengler * instruction and updates flags in gr0 448c3dcb058SHolger Dengler * @gr0: pointer to gr0 (fc and flags) passed to KMAC; see CPACF_KMAC_xxx defines 449c3dcb058SHolger Dengler * @param: address of parameter block; see POP for details on each func 450c3dcb058SHolger Dengler * @src: address of source memory area 451c3dcb058SHolger Dengler * @src_len: length of src operand in bytes 452c3dcb058SHolger Dengler * 453c3dcb058SHolger Dengler * Returns 0 for the query func, number of processed bytes for digest funcs 454c3dcb058SHolger Dengler */ 455c3dcb058SHolger Dengler static inline int _cpacf_kmac(unsigned long *gr0, void *param, 456c3dcb058SHolger Dengler const u8 *src, long src_len) 457c3dcb058SHolger Dengler { 458c3dcb058SHolger Dengler union register_pair s; 459c3dcb058SHolger Dengler 460c3dcb058SHolger Dengler s.even = (unsigned long)src; 461c3dcb058SHolger Dengler s.odd = (unsigned long)src_len; 462c3dcb058SHolger Dengler asm volatile( 463c3dcb058SHolger Dengler " lgr 0,%[r0]\n" 464c3dcb058SHolger Dengler " lgr 1,%[pba]\n" 465c3dcb058SHolger Dengler "0: .insn rre,%[opc] << 16,0,%[src]\n" 466c3dcb058SHolger Dengler " brc 1,0b\n" /* handle partial completion */ 467c3dcb058SHolger Dengler " lgr %[r0],0\n" 468c3dcb058SHolger Dengler : [r0] "+d" (*gr0), [src] "+&d" (s.pair) 469c3dcb058SHolger Dengler : [pba] "d" ((unsigned long)param), 470c3dcb058SHolger Dengler [opc] "i" (CPACF_KMAC) 471c3dcb058SHolger Dengler : "cc", "memory", "0", "1"); 472c3dcb058SHolger Dengler 473c3dcb058SHolger Dengler return src_len - s.odd; 474c3dcb058SHolger Dengler } 475c3dcb058SHolger Dengler 476c3dcb058SHolger Dengler /** 477c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 478c7d4d259SMartin Schwidefsky * instruction 479c3dcb058SHolger Dengler * @func: function code passed to KMAC; see CPACF_KMAC_xxx defines 480c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 481c7d4d259SMartin Schwidefsky * @src: address of source memory area 482c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 483c7d4d259SMartin Schwidefsky * 484c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 485c7d4d259SMartin Schwidefsky */ 486edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 487c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 488c7d4d259SMartin Schwidefsky { 489c3dcb058SHolger Dengler return _cpacf_kmac(&func, param, src, src_len); 490c7d4d259SMartin Schwidefsky } 491c7d4d259SMartin Schwidefsky 492c7d4d259SMartin Schwidefsky /** 493c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 494c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_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 * @src: address of source memory area 498c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 499c7d4d259SMartin Schwidefsky * @counter: address of counter value 500c7d4d259SMartin Schwidefsky * 501c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 502c7d4d259SMartin Schwidefsky * encryption/decryption funcs 503c7d4d259SMartin Schwidefsky */ 504edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 505c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 506c7d4d259SMartin Schwidefsky { 507b84d0c41SHeiko Carstens union register_pair d, s, c; 508c7d4d259SMartin Schwidefsky 509b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 510b84d0c41SHeiko Carstens s.even = (unsigned long)src; 511b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 512b84d0c41SHeiko Carstens c.even = (unsigned long)counter; 513c7d4d259SMartin Schwidefsky asm volatile( 514b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 515b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 516c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 517c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 518b84d0c41SHeiko Carstens : [src] "+&d" (s.pair), [dst] "+&d" (d.pair), 519b84d0c41SHeiko Carstens [ctr] "+&d" (c.pair) 520b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 521b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMCTR) 522b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 523c7d4d259SMartin Schwidefsky 524b84d0c41SHeiko Carstens return src_len - s.odd; 525c7d4d259SMartin Schwidefsky } 526c7d4d259SMartin Schwidefsky 527c7d4d259SMartin Schwidefsky /** 528985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 529c7d4d259SMartin Schwidefsky * instruction 530985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 531c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 532c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 533c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 534c7d4d259SMartin Schwidefsky * @seed: address of seed data 535c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 536c7d4d259SMartin Schwidefsky */ 537985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 538f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 539f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 540c7d4d259SMartin Schwidefsky { 541b84d0c41SHeiko Carstens union register_pair d, s; 542c7d4d259SMartin Schwidefsky 543b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 544b84d0c41SHeiko Carstens d.odd = (unsigned long)dest_len; 545b84d0c41SHeiko Carstens s.even = (unsigned long)seed; 546b84d0c41SHeiko Carstens s.odd = (unsigned long)seed_len; 547c7d4d259SMartin Schwidefsky asm volatile ( 548b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 549b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 550c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 551c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 552b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair) 553b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 554b84d0c41SHeiko Carstens [seed] "d" (s.pair), [opc] "i" (CPACF_PRNO) 555b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 556c7d4d259SMartin Schwidefsky } 557c7d4d259SMartin Schwidefsky 558c7d4d259SMartin Schwidefsky /** 559f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 560f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 561f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 562f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 563f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 564f75fa65dSHarald Freudenberger */ 565f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 566f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 567f75fa65dSHarald Freudenberger { 568b84d0c41SHeiko Carstens union register_pair u, c; 569f75fa65dSHarald Freudenberger 570b84d0c41SHeiko Carstens u.even = (unsigned long)ucbuf; 571b84d0c41SHeiko Carstens u.odd = (unsigned long)ucbuf_len; 572b84d0c41SHeiko Carstens c.even = (unsigned long)cbuf; 573b84d0c41SHeiko Carstens c.odd = (unsigned long)cbuf_len; 574f75fa65dSHarald Freudenberger asm volatile ( 575b84d0c41SHeiko Carstens " lghi 0,%[fc]\n" 576f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 577f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 578b84d0c41SHeiko Carstens : [ucbuf] "+&d" (u.pair), [cbuf] "+&d" (c.pair) 579b84d0c41SHeiko Carstens : [fc] "K" (CPACF_PRNO_TRNG), [opc] "i" (CPACF_PRNO) 580b84d0c41SHeiko Carstens : "cc", "memory", "0"); 5818c208bc5SIlya Leoshkevich kmsan_unpoison_memory(ucbuf, ucbuf_len); 5828c208bc5SIlya Leoshkevich kmsan_unpoison_memory(cbuf, cbuf_len); 583f75fa65dSHarald Freudenberger } 584f75fa65dSHarald Freudenberger 585f75fa65dSHarald Freudenberger /** 586c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 587c7d4d259SMartin Schwidefsky * instruction 588c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 589c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 590c7d4d259SMartin Schwidefsky */ 5910177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 592c7d4d259SMartin Schwidefsky { 593c7d4d259SMartin Schwidefsky asm volatile( 594b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 595b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 596c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 597c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 598c7d4d259SMartin Schwidefsky : 599b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 600b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCC) 601b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 602c7d4d259SMartin Schwidefsky } 603c7d4d259SMartin Schwidefsky 60477606708SHarald Freudenberger /** 60577606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 60677606708SHarald Freudenberger * MANAGEMENT) instruction 60777606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 60877606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 60977606708SHarald Freudenberger * 61077606708SHarald Freudenberger * Returns 0. 61177606708SHarald Freudenberger */ 61277606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 61377606708SHarald Freudenberger { 61477606708SHarald Freudenberger asm volatile( 615b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 616b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 61777606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 61877606708SHarald Freudenberger : 619b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 620b84d0c41SHeiko Carstens [opc] "i" (CPACF_PCKMO) 621b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 62277606708SHarald Freudenberger } 62377606708SHarald Freudenberger 624eecd49c4SPatrick Steuer /** 625eecd49c4SPatrick Steuer * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION) 626eecd49c4SPatrick Steuer * instruction 627eecd49c4SPatrick Steuer * @func: the function code passed to KMA; see CPACF_KMA_xxx defines 628eecd49c4SPatrick Steuer * @param: address of parameter block; see POP for details on each func 629eecd49c4SPatrick Steuer * @dest: address of destination memory area 630eecd49c4SPatrick Steuer * @src: address of source memory area 631eecd49c4SPatrick Steuer * @src_len: length of src operand in bytes 632eecd49c4SPatrick Steuer * @aad: address of additional authenticated data memory area 633eecd49c4SPatrick Steuer * @aad_len: length of aad operand in bytes 634eecd49c4SPatrick Steuer */ 635eecd49c4SPatrick Steuer static inline void cpacf_kma(unsigned long func, void *param, u8 *dest, 636eecd49c4SPatrick Steuer const u8 *src, unsigned long src_len, 637eecd49c4SPatrick Steuer const u8 *aad, unsigned long aad_len) 638eecd49c4SPatrick Steuer { 639b84d0c41SHeiko Carstens union register_pair d, s, a; 640eecd49c4SPatrick Steuer 641b84d0c41SHeiko Carstens d.even = (unsigned long)dest; 642b84d0c41SHeiko Carstens s.even = (unsigned long)src; 643b84d0c41SHeiko Carstens s.odd = (unsigned long)src_len; 644b84d0c41SHeiko Carstens a.even = (unsigned long)aad; 645b84d0c41SHeiko Carstens a.odd = (unsigned long)aad_len; 646eecd49c4SPatrick Steuer asm volatile( 647b84d0c41SHeiko Carstens " lgr 0,%[fc]\n" 648b84d0c41SHeiko Carstens " lgr 1,%[pba]\n" 649eecd49c4SPatrick Steuer "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n" 650eecd49c4SPatrick Steuer " brc 1,0b\n" /* handle partial completion */ 651b84d0c41SHeiko Carstens : [dst] "+&d" (d.pair), [src] "+&d" (s.pair), 652b84d0c41SHeiko Carstens [aad] "+&d" (a.pair) 653b84d0c41SHeiko Carstens : [fc] "d" (func), [pba] "d" ((unsigned long)param), 654b84d0c41SHeiko Carstens [opc] "i" (CPACF_KMA) 655b84d0c41SHeiko Carstens : "cc", "memory", "0", "1"); 656eecd49c4SPatrick Steuer } 657eecd49c4SPatrick Steuer 658c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 659