1 /* 2 * Copyright (c) 2018-2025, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef ARM_ARCH_SVC_H 8 #define ARM_ARCH_SVC_H 9 10 #define SMCCC_VERSION U(0x80000000) 11 #define SMCCC_ARCH_FEATURES U(0x80000001) 12 #define SMCCC_ARCH_SOC_ID U(0x80000002) 13 #define SMCCC_ARCH_WORKAROUND_1 U(0x80008000) 14 #define SMCCC_ARCH_WORKAROUND_2 U(0x80007FFF) 15 #define SMCCC_ARCH_WORKAROUND_3 U(0x80003FFF) 16 #define SMCCC_ARCH_FEATURE_AVAILABILITY U(0x80000003) 17 #define SMCCC_ARCH_WORKAROUND_4 U(0x80000004) 18 19 #define SMCCC_GET_SOC_VERSION U(0) 20 #define SMCCC_GET_SOC_REVISION U(1) 21 22 #ifndef __ASSEMBLER__ 23 #if ARCH_FEATURE_AVAILABILITY 24 #include <lib/cassert.h> 25 26 #if ENABLE_FEAT_FGT2 27 #define SCR_FEAT_FGT2 SCR_FGTEN2_BIT 28 #else 29 #define SCR_FEAT_FGT2 (0) 30 #endif 31 32 #if ENABLE_FEAT_FPMR 33 #define SCR_FEAT_FPMR SCR_EnFPM_BIT 34 #else 35 #define SCR_FEAT_FPMR 36 #endif 37 38 #if ENABLE_FEAT_D128 39 #define SCR_FEAT_D128 SCR_D128En_BIT 40 #else 41 #define SCR_FEAT_D128 (0) 42 #endif 43 44 #if ENABLE_FEAT_S1PIE 45 #define SCR_FEAT_S1PIE SCR_PIEN_BIT 46 #else 47 #define SCR_FEAT_S1PIE (0) 48 #endif 49 50 #if ENABLE_FEAT_SCTLR2 51 #define SCR_FEAT_SCTLR2 SCR_SCTLR2En_BIT 52 #else 53 #define SCR_FEAT_SCTLR2 (0) 54 #endif 55 56 #if ENABLE_FEAT_TCR2 57 #define SCR_FEAT_TCR2 SCR_TCR2EN_BIT 58 #else 59 #define SCR_FEAT_TCR2 (0) 60 #endif 61 62 #if ENABLE_FEAT_THE 63 #define SCR_FEAT_THE SCR_RCWMASKEn_BIT 64 #else 65 #define SCR_FEAT_THE (0) 66 #endif 67 68 #if ENABLE_SME_FOR_NS 69 #define SCR_FEAT_SME SCR_ENTP2_BIT 70 #else 71 #define SCR_FEAT_SME (0) 72 #endif 73 74 #if ENABLE_FEAT_GCS 75 #define SCR_FEAT_GCS SCR_GCSEn_BIT 76 #else 77 #define SCR_FEAT_GCS (0) 78 #endif 79 80 #if ENABLE_FEAT_HCX 81 #define SCR_FEAT_HCX SCR_HXEn_BIT 82 #else 83 #define SCR_FEAT_HCX (0) 84 #endif 85 86 #if ENABLE_FEAT_LS64_ACCDATA 87 #define SCR_FEAT_LS64_ACCDATA (SCR_ADEn_BIT | SCR_EnAS0_BIT) 88 #else 89 #define SCR_FEAT_LS64_ACCDATA (0) 90 #endif 91 92 #if ENABLE_FEAT_AMUv1p1 93 #define SCR_FEAT_AMUv1p1 SCR_AMVOFFEN_BIT 94 #else 95 #define SCR_FEAT_AMUv1p1 (0) 96 #endif 97 98 #if ENABLE_FEAT_ECV 99 #define SCR_FEAT_ECV SCR_ECVEN_BIT 100 #else 101 #define SCR_FEAT_ECV (0) 102 #endif 103 104 #if ENABLE_FEAT_FGT 105 #define SCR_FEAT_FGT SCR_FGTEN_BIT 106 #else 107 #define SCR_FEAT_FGT (0) 108 #endif 109 110 #if ENABLE_FEAT_MTE2 111 #define SCR_FEAT_MTE2 SCR_ATA_BIT 112 #else 113 #define SCR_FEAT_MTE2 (0) 114 #endif 115 116 #if ENABLE_FEAT_CSV2_2 117 #define SCR_FEAT_CSV2_2 SCR_EnSCXT_BIT 118 #else 119 #define SCR_FEAT_CSV2_2 (0) 120 #endif 121 122 #if ENABLE_FEAT_RAS 123 #define SCR_FEAT_RAS SCR_TERR_BIT 124 #else 125 #define SCR_FEAT_RAS (0) 126 #endif 127 128 #if ENABLE_FEAT_MEC 129 #define SCR_FEAT_MEC SCR_MECEn_BIT 130 #else 131 #define SCR_FEAT_MEC (0) 132 #endif 133 134 #ifndef SCR_PLAT_FEATS 135 #define SCR_PLAT_FEATS (0) 136 #endif 137 #ifndef SCR_PLAT_FLIPPED 138 #define SCR_PLAT_FLIPPED (0) 139 #endif 140 #ifndef SCR_PLAT_IGNORED 141 #define SCR_PLAT_IGNORED (0) 142 #endif 143 144 #ifndef CPTR_PLAT_FEATS 145 #define CPTR_PLAT_FEATS (0) 146 #endif 147 #ifndef CPTR_PLAT_FLIPPED 148 #define CPTR_PLAT_FLIPPED (0) 149 #endif 150 151 #ifndef MDCR_PLAT_FEATS 152 #define MDCR_PLAT_FEATS (0) 153 #endif 154 #ifndef MDCR_PLAT_FLIPPED 155 #define MDCR_PLAT_FLIPPED (0) 156 #endif 157 #ifndef MDCR_PLAT_IGNORED 158 #define MDCR_PLAT_IGNORED (0) 159 #endif 160 /* 161 * XYZ_EL3_FEATS - list all bits that are relevant for feature enablement. It's 162 * a constant list based on what features are expected. This relies on the fact 163 * that if the feature is in any way disabled, then the relevant bit will not be 164 * written by context management. 165 * 166 * XYZ_EL3_FLIPPED - bits with an active 0, rather than the usual active 1. The 167 * spec always uses active 1 to mean that the feature will not trap. 168 * 169 * XYZ_EL3_IGNORED - list of all bits that are not relevant for feature 170 * enablement and should not be reported to lower ELs 171 */ 172 #define SCR_EL3_FEATS ( \ 173 SCR_FEAT_FGT2 | \ 174 SCR_FEAT_FPMR | \ 175 SCR_FEAT_D128 | \ 176 SCR_FEAT_S1PIE | \ 177 SCR_FEAT_SCTLR2 | \ 178 SCR_FEAT_TCR2 | \ 179 SCR_FEAT_THE | \ 180 SCR_FEAT_SME | \ 181 SCR_FEAT_GCS | \ 182 SCR_FEAT_HCX | \ 183 SCR_FEAT_LS64_ACCDATA | \ 184 SCR_FEAT_AMUv1p1 | \ 185 SCR_FEAT_ECV | \ 186 SCR_FEAT_FGT | \ 187 SCR_FEAT_MTE2 | \ 188 SCR_FEAT_CSV2_2 | \ 189 SCR_APK_BIT | /* FEAT_Pauth */ \ 190 SCR_FEAT_RAS | \ 191 SCR_PLAT_FEATS) 192 #define SCR_EL3_FLIPPED ( \ 193 SCR_FEAT_RAS | \ 194 SCR_PLAT_FLIPPED) 195 #define SCR_EL3_IGNORED ( \ 196 SCR_API_BIT | \ 197 SCR_RW_BIT | \ 198 SCR_SIF_BIT | \ 199 SCR_HCE_BIT | \ 200 SCR_FIQ_BIT | \ 201 SCR_IRQ_BIT | \ 202 SCR_NS_BIT | \ 203 SCR_RES1_BITS | \ 204 SCR_FEAT_MEC | \ 205 SCR_PLAT_IGNORED) 206 CASSERT((SCR_EL3_FEATS & SCR_EL3_IGNORED) == 0, scr_feat_is_ignored); 207 CASSERT((SCR_EL3_FLIPPED & SCR_EL3_FEATS) == SCR_EL3_FLIPPED, scr_flipped_not_a_feat); 208 209 #if ENABLE_SYS_REG_TRACE_FOR_NS 210 #define CPTR_SYS_REG_TRACE (TCPAC_BIT | TTA_BIT) 211 #else 212 #define CPTR_SYS_REG_TRACE (0) 213 #endif 214 215 #if ENABLE_FEAT_AMU 216 #define CPTR_FEAT_AMU TAM_BIT 217 #else 218 #define CPTR_FEAT_AMU (0) 219 #endif 220 221 #if ENABLE_SME_FOR_NS 222 #define CPTR_FEAT_SME ESM_BIT 223 #else 224 #define CPTR_FEAT_SME (0) 225 #endif 226 227 #if ENABLE_SVE_FOR_NS 228 #define CPTR_FEAT_SVE CPTR_EZ_BIT 229 #else 230 #define CPTR_FEAT_SVE (0) 231 #endif 232 233 #define CPTR_EL3_FEATS ( \ 234 CPTR_SYS_REG_TRACE | \ 235 CPTR_FEAT_AMU | \ 236 CPTR_FEAT_SME | \ 237 TFP_BIT | \ 238 CPTR_FEAT_SVE | \ 239 CPTR_PLAT_FEATS) 240 #define CPTR_EL3_FLIPPED ( \ 241 CPTR_SYS_REG_TRACE | \ 242 CPTR_FEAT_AMU | \ 243 TFP_BIT | \ 244 CPTR_PLAT_FLIPPED) 245 CASSERT((CPTR_EL3_FLIPPED & CPTR_EL3_FEATS) == CPTR_EL3_FLIPPED, cptr_flipped_not_a_feat); 246 247 /* 248 * Some features enables are expressed with more than 1 bit in order to cater 249 * for multi world enablement. In those cases (BRB, TRB, SPE) only the last bit 250 * is used and reported. This (ab)uses the convenient fact that the last bit 251 * always means "enabled for this world" when context switched correctly. 252 * The per-world values have been adjusted such that this is always true. 253 */ 254 #if ENABLE_BRBE_FOR_NS 255 #define MDCR_FEAT_BRBE MDCR_SBRBE(1UL) 256 #else 257 #define MDCR_FEAT_BRBE (0) 258 #endif 259 260 #if ENABLE_FEAT_FGT 261 #define MDCR_FEAT_FGT MDCR_TDCC_BIT 262 #else 263 #define MDCR_FEAT_FGT (0) 264 #endif 265 266 #if ENABLE_TRBE_FOR_NS 267 #define MDCR_FEAT_TRBE MDCR_NSTB(1UL) 268 #else 269 #define MDCR_FEAT_TRBE (0) 270 #endif 271 272 #if ENABLE_TRF_FOR_NS 273 #define MDCR_FEAT_TRF MDCR_TTRF_BIT 274 #else 275 #define MDCR_FEAT_TRF (0) 276 #endif 277 278 #if ENABLE_SPE_FOR_NS 279 #define MDCR_FEAT_SPE MDCR_NSPB(1UL) 280 #else 281 #define MDCR_FEAT_SPE (0) 282 #endif 283 284 #define MDCR_EL3_FEATS ( \ 285 MDCR_FEAT_BRBE | \ 286 MDCR_FEAT_FGT | \ 287 MDCR_FEAT_TRBE | \ 288 MDCR_FEAT_TRF | \ 289 MDCR_FEAT_SPE | \ 290 MDCR_TDOSA_BIT | \ 291 MDCR_TDA_BIT | \ 292 MDCR_TPM_BIT | /* FEAT_PMUv3 */ \ 293 MDCR_PLAT_FEATS) 294 #define MDCR_EL3_FLIPPED ( \ 295 MDCR_FEAT_FGT | \ 296 MDCR_FEAT_TRF | \ 297 MDCR_TDOSA_BIT | \ 298 MDCR_TDA_BIT | \ 299 MDCR_TPM_BIT | \ 300 MDCR_PLAT_FLIPPED) 301 #define MDCR_EL3_IGNORED ( \ 302 MDCR_EBWE_BIT | \ 303 MDCR_EnPMSN_BIT | \ 304 MDCR_SBRBE(2UL) | \ 305 MDCR_MTPME_BIT | \ 306 MDCR_NSTBE_BIT | \ 307 MDCR_NSTB(2UL) | \ 308 MDCR_MCCD_BIT | \ 309 MDCR_SCCD_BIT | \ 310 MDCR_SDD_BIT | \ 311 MDCR_SPD32(3UL) | \ 312 MDCR_NSPB(2UL) | \ 313 MDCR_NSPBE_BIT | \ 314 MDCR_PLAT_IGNORED) 315 CASSERT((MDCR_EL3_FEATS & MDCR_EL3_IGNORED) == 0, mdcr_feat_is_ignored); 316 CASSERT((MDCR_EL3_FLIPPED & MDCR_EL3_FEATS) == MDCR_EL3_FLIPPED, mdcr_flipped_not_a_feat); 317 318 #define MPAM3_EL3_FEATS (MPAM3_EL3_TRAPLOWER_BIT) 319 #define MPAM3_EL3_FLIPPED (MPAM3_EL3_TRAPLOWER_BIT) 320 #define MPAM3_EL3_IGNORED (MPAM3_EL3_MPAMEN_BIT) 321 CASSERT((MPAM3_EL3_FEATS & MPAM3_EL3_IGNORED) == 0, mpam3_feat_is_ignored); 322 CASSERT((MPAM3_EL3_FLIPPED & MPAM3_EL3_FEATS) == MPAM3_EL3_FLIPPED, mpam3_flipped_not_a_feat); 323 324 /* The hex representations of these registers' S3 encoding */ 325 #define SCR_EL3_OPCODE U(0x1E1100) 326 #define CPTR_EL3_OPCODE U(0x1E1140) 327 #define MDCR_EL3_OPCODE U(0x1E1320) 328 #define MPAM3_EL3_OPCODE U(0x1EA500) 329 330 #endif /* ARCH_FEATURE_AVAILABILITY */ 331 #endif /* __ASSEMBLER__ */ 332 #endif /* ARM_ARCH_SVC_H */ 333