1 /* 2 * Copyright (c) 2022-2025, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <arch_features.h> 8 #include <common/debug.h> 9 #include <common/feat_detect.h> 10 #include <plat/common/platform.h> 11 12 static bool detection_done[PLATFORM_CORE_COUNT] = { false }; 13 14 /******************************************************************************* 15 * Function : check_feature 16 * Check for a valid combination of build time flags (ENABLE_FEAT_xxx) and 17 * feature availability on the hardware. <min> is the smallest feature 18 * ID field value that is required for that feature. 19 * Triggers a panic later if a feature is forcefully enabled, but not 20 * available on the PE. Also will panic if the hardware feature ID field 21 * is larger than the maximum known and supported number, specified by <max>. 22 * 23 * We force inlining here to let the compiler optimise away the whole check 24 * if the feature is disabled at build time (FEAT_STATE_DISABLED). 25 ******************************************************************************/ 26 static inline bool __attribute((__always_inline__)) 27 check_feature(int state, unsigned long field, const char *feat_name, 28 unsigned int min, unsigned int max) 29 { 30 if (state == FEAT_STATE_ALWAYS && field < min) { 31 ERROR("FEAT_%s not supported by the PE\n", feat_name); 32 return true; 33 } 34 if (state >= FEAT_STATE_ALWAYS && field > max) { 35 ERROR("FEAT_%s is version %ld, but is only known up to version %d\n", 36 feat_name, field, max); 37 return true; 38 } 39 40 return false; 41 } 42 43 static unsigned int read_feat_rng_trap_id_field(void) 44 { 45 return ISOLATE_FIELD(read_id_aa64pfr1_el1(), ID_AA64PFR1_EL1_RNDR_TRAP_SHIFT, 46 ID_AA64PFR1_EL1_RNDR_TRAP_MASK); 47 } 48 49 static unsigned int read_feat_bti_id_field(void) 50 { 51 return ISOLATE_FIELD(read_id_aa64pfr1_el1(), ID_AA64PFR1_EL1_BT_SHIFT, 52 ID_AA64PFR1_EL1_BT_MASK); 53 } 54 55 static unsigned int read_feat_sb_id_field(void) 56 { 57 return ISOLATE_FIELD(read_id_aa64isar1_el1(), ID_AA64ISAR1_SB_SHIFT, 58 ID_AA64ISAR1_SB_MASK); 59 } 60 61 static unsigned int read_feat_csv2_id_field(void) 62 { 63 return ISOLATE_FIELD(read_id_aa64pfr0_el1(), ID_AA64PFR0_CSV2_SHIFT, 64 ID_AA64PFR0_CSV2_MASK); 65 } 66 67 static unsigned int read_feat_debugv8p9_id_field(void) 68 { 69 return ISOLATE_FIELD(read_id_aa64dfr0_el1(), ID_AA64DFR0_DEBUGVER_SHIFT, 70 ID_AA64DFR0_DEBUGVER_MASK); 71 } 72 73 static unsigned int read_feat_pmuv3_id_field(void) 74 { 75 return ISOLATE_FIELD(read_id_aa64dfr0_el1(), ID_AA64DFR0_PMUVER_SHIFT, 76 ID_AA64DFR0_PMUVER_MASK); 77 } 78 79 static unsigned int read_feat_vhe_id_field(void) 80 { 81 return ISOLATE_FIELD(read_id_aa64mmfr1_el1(), ID_AA64MMFR1_EL1_VHE_SHIFT, 82 ID_AA64MMFR1_EL1_VHE_MASK); 83 } 84 85 static unsigned int read_feat_sve_id_field(void) 86 { 87 return ISOLATE_FIELD(read_id_aa64pfr0_el1(), ID_AA64PFR0_SVE_SHIFT, 88 ID_AA64PFR0_SVE_MASK); 89 } 90 91 static unsigned int read_feat_ras_id_field(void) 92 { 93 return ISOLATE_FIELD(read_id_aa64pfr0_el1(), ID_AA64PFR0_RAS_SHIFT, 94 ID_AA64PFR0_RAS_MASK); 95 } 96 97 static unsigned int read_feat_dit_id_field(void) 98 { 99 return ISOLATE_FIELD(read_id_aa64pfr0_el1(), ID_AA64PFR0_DIT_SHIFT, 100 ID_AA64PFR0_DIT_MASK); 101 } 102 103 static unsigned int read_feat_amu_id_field(void) 104 { 105 return ISOLATE_FIELD(read_id_aa64pfr0_el1(), ID_AA64PFR0_AMU_SHIFT, 106 ID_AA64PFR0_AMU_MASK); 107 } 108 109 static unsigned int read_feat_mpam_version(void) 110 { 111 return (unsigned int)((((read_id_aa64pfr0_el1() >> 112 ID_AA64PFR0_MPAM_SHIFT) & ID_AA64PFR0_MPAM_MASK) << 4) | 113 ((read_id_aa64pfr1_el1() >> 114 ID_AA64PFR1_MPAM_FRAC_SHIFT) & ID_AA64PFR1_MPAM_FRAC_MASK)); 115 } 116 117 static unsigned int read_feat_nv_id_field(void) 118 { 119 return ISOLATE_FIELD(read_id_aa64mmfr2_el1(), ID_AA64MMFR2_EL1_NV_SHIFT, 120 ID_AA64MMFR2_EL1_NV_MASK); 121 } 122 123 static unsigned int read_feat_sel2_id_field(void) 124 { 125 return ISOLATE_FIELD(read_id_aa64pfr0_el1(), ID_AA64PFR0_SEL2_SHIFT, 126 ID_AA64PFR0_SEL2_MASK); 127 } 128 129 static unsigned int read_feat_trf_id_field(void) 130 { 131 return ISOLATE_FIELD(read_id_aa64dfr0_el1(), ID_AA64DFR0_TRACEFILT_SHIFT, 132 ID_AA64DFR0_TRACEFILT_MASK); 133 } 134 static unsigned int get_armv8_5_mte_support(void) 135 { 136 return ISOLATE_FIELD(read_id_aa64pfr1_el1(), ID_AA64PFR1_EL1_MTE_SHIFT, 137 ID_AA64PFR1_EL1_MTE_MASK); 138 } 139 static unsigned int read_feat_rng_id_field(void) 140 { 141 return ISOLATE_FIELD(read_id_aa64isar0_el1(), ID_AA64ISAR0_RNDR_SHIFT, 142 ID_AA64ISAR0_RNDR_MASK); 143 } 144 static unsigned int read_feat_fgt_id_field(void) 145 { 146 return ISOLATE_FIELD(read_id_aa64mmfr0_el1(), ID_AA64MMFR0_EL1_FGT_SHIFT, 147 ID_AA64MMFR0_EL1_FGT_MASK); 148 } 149 static unsigned int read_feat_ecv_id_field(void) 150 { 151 return ISOLATE_FIELD(read_id_aa64mmfr0_el1(), ID_AA64MMFR0_EL1_ECV_SHIFT, 152 ID_AA64MMFR0_EL1_ECV_MASK); 153 } 154 static unsigned int read_feat_twed_id_field(void) 155 { 156 return ISOLATE_FIELD(read_id_aa64mmfr1_el1(), ID_AA64MMFR1_EL1_TWED_SHIFT, 157 ID_AA64MMFR1_EL1_TWED_MASK); 158 } 159 160 static unsigned int read_feat_hcx_id_field(void) 161 { 162 return ISOLATE_FIELD(read_id_aa64mmfr1_el1(), ID_AA64MMFR1_EL1_HCX_SHIFT, 163 ID_AA64MMFR1_EL1_HCX_MASK); 164 } 165 static unsigned int read_feat_ls64_id_field(void) 166 { 167 return ISOLATE_FIELD(read_id_aa64isar1_el1(), ID_AA64ISAR1_LS64_SHIFT, 168 ID_AA64ISAR1_LS64_MASK); 169 } 170 static unsigned int read_feat_aie_id_field(void) 171 { 172 return ISOLATE_FIELD(read_id_aa64mmfr3_el1(), ID_AA64MMFR3_EL1_AIE_SHIFT, 173 ID_AA64MMFR3_EL1_AIE_MASK); 174 } 175 static unsigned int read_feat_pfar_id_field(void) 176 { 177 return ISOLATE_FIELD(read_id_aa64pfr1_el1(), ID_AA64PFR1_EL1_PFAR_SHIFT, 178 ID_AA64PFR1_EL1_PFAR_MASK); 179 } 180 static unsigned int read_feat_tcr2_id_field(void) 181 { 182 return ISOLATE_FIELD(read_id_aa64mmfr3_el1(), ID_AA64MMFR3_EL1_TCRX_SHIFT, 183 ID_AA64MMFR3_EL1_TCRX_MASK); 184 } 185 static unsigned int read_feat_s2pie_id_field(void) 186 { 187 return ISOLATE_FIELD(read_id_aa64mmfr3_el1(), ID_AA64MMFR3_EL1_S2PIE_SHIFT, 188 ID_AA64MMFR3_EL1_S2PIE_MASK); 189 } 190 static unsigned int read_feat_s1pie_id_field(void) 191 { 192 return ISOLATE_FIELD(read_id_aa64mmfr3_el1(), ID_AA64MMFR3_EL1_S1PIE_SHIFT, 193 ID_AA64MMFR3_EL1_S1PIE_MASK); 194 } 195 static unsigned int read_feat_s2poe_id_field(void) 196 { 197 return ISOLATE_FIELD(read_id_aa64mmfr3_el1(), ID_AA64MMFR3_EL1_S2POE_SHIFT, 198 ID_AA64MMFR3_EL1_S2POE_MASK); 199 } 200 static unsigned int read_feat_s1poe_id_field(void) 201 { 202 return ISOLATE_FIELD(read_id_aa64mmfr3_el1(), ID_AA64MMFR3_EL1_S1POE_SHIFT, 203 ID_AA64MMFR3_EL1_S1POE_MASK); 204 } 205 static unsigned int read_feat_brbe_id_field(void) 206 { 207 return ISOLATE_FIELD(read_id_aa64dfr0_el1(), ID_AA64DFR0_BRBE_SHIFT, 208 ID_AA64DFR0_BRBE_MASK); 209 } 210 static unsigned int read_feat_trbe_id_field(void) 211 { 212 return ISOLATE_FIELD(read_id_aa64dfr0_el1(), ID_AA64DFR0_TRACEBUFFER_SHIFT, 213 ID_AA64DFR0_TRACEBUFFER_MASK); 214 } 215 static unsigned int read_feat_sme_id_field(void) 216 { 217 return ISOLATE_FIELD(read_id_aa64pfr1_el1(), ID_AA64PFR1_EL1_SME_SHIFT, 218 ID_AA64PFR1_EL1_SME_MASK); 219 } 220 static unsigned int read_feat_gcs_id_field(void) 221 { 222 return ISOLATE_FIELD(read_id_aa64pfr1_el1(), ID_AA64PFR1_EL1_GCS_SHIFT, 223 ID_AA64PFR1_EL1_GCS_MASK); 224 } 225 226 static unsigned int read_feat_rme_id_field(void) 227 { 228 return ISOLATE_FIELD(read_id_aa64pfr0_el1(), ID_AA64PFR0_FEAT_RME_SHIFT, 229 ID_AA64PFR0_FEAT_RME_MASK); 230 } 231 232 static unsigned int read_feat_pan_id_field(void) 233 { 234 return ISOLATE_FIELD(read_id_aa64mmfr1_el1(), ID_AA64MMFR1_EL1_PAN_SHIFT, 235 ID_AA64MMFR1_EL1_PAN_MASK); 236 } 237 238 static unsigned int read_feat_mtpmu_id_field(void) 239 { 240 return ISOLATE_FIELD(read_id_aa64dfr0_el1(), ID_AA64DFR0_MTPMU_SHIFT, 241 ID_AA64DFR0_MTPMU_MASK); 242 243 } 244 245 static unsigned int read_feat_the_id_field(void) 246 { 247 return ISOLATE_FIELD(read_id_aa64pfr1_el1(), ID_AA64PFR1_EL1_THE_SHIFT, 248 ID_AA64PFR1_EL1_THE_MASK); 249 } 250 251 static unsigned int read_feat_sctlr2_id_field(void) 252 { 253 return ISOLATE_FIELD(read_id_aa64mmfr3_el1(), ID_AA64MMFR3_EL1_SCTLR2_SHIFT, 254 ID_AA64MMFR3_EL1_SCTLR2_MASK); 255 } 256 257 static unsigned int read_feat_d128_id_field(void) 258 { 259 return ISOLATE_FIELD(read_id_aa64mmfr3_el1(), ID_AA64MMFR3_EL1_D128_SHIFT, 260 ID_AA64MMFR3_EL1_D128_MASK); 261 } 262 static unsigned int read_feat_gcie_id_field(void) 263 { 264 return ISOLATE_FIELD(read_id_aa64pfr2_el1(), ID_AA64PFR2_EL1_GCIE_SHIFT, 265 ID_AA64PFR2_EL1_GCIE_MASK); 266 } 267 268 static unsigned int read_feat_ebep_id_field(void) 269 { 270 return ISOLATE_FIELD(read_id_aa64dfr1_el1(), ID_AA64DFR1_EBEP_SHIFT, 271 ID_AA64DFR1_EBEP_MASK); 272 } 273 274 static unsigned int read_feat_fpmr_id_field(void) 275 { 276 return ISOLATE_FIELD(read_id_aa64pfr2_el1(), ID_AA64PFR2_EL1_FPMR_SHIFT, 277 ID_AA64PFR2_EL1_FPMR_MASK); 278 } 279 280 static unsigned int read_feat_mops_id_field(void) 281 { 282 return ISOLATE_FIELD(read_id_aa64isar2_el1(), ID_AA64ISAR2_EL1_MOPS_SHIFT, 283 ID_AA64ISAR2_EL1_MOPS_MASK); 284 } 285 286 static unsigned int read_feat_fgwte3_id_field(void) 287 { 288 return ISOLATE_FIELD(read_id_aa64mmfr4_el1(), ID_AA64MMFR4_EL1_FGWTE3_SHIFT, 289 ID_AA64MMFR4_EL1_FGWTE3_MASK); 290 } 291 292 static unsigned int read_feat_cpa_id_field(void) 293 { 294 return ISOLATE_FIELD(read_id_aa64isar3_el1(), 295 ID_AA64ISAR3_EL1_CPA_SHIFT, 296 ID_AA64ISAR3_EL1_CPA_MASK); 297 } 298 299 static unsigned int read_feat_clrbhb_id_field(void) 300 { 301 return ISOLATE_FIELD(read_id_aa64isar2_el1(), ID_AA64ISAR2_CLRBHB_SHIFT, 302 ID_AA64ISAR2_CLRBHB_MASK); 303 } 304 305 static unsigned int read_feat_rme_gdi_id_field(void) 306 { 307 return ISOLATE_FIELD(read_id_aa64mmfr4_el1(), 308 ID_AA64MMFR4_EL1_RME_GDI_SHIFT, 309 ID_AA64MMFR4_EL1_RME_GDI_MASK); 310 } 311 312 static unsigned int read_feat_idte3_id_field(void) 313 { 314 return ISOLATE_FIELD(read_id_aa64mmfr2_el1(), ID_AA64MMFR2_EL1_IDS_SHIFT, 315 ID_AA64MMFR2_EL1_IDS_MASK); 316 } 317 318 /*********************************************************************************** 319 * TF-A supports many Arm architectural features starting from arch version 320 * (8.0 till 8.7+). These features are mostly enabled through build flags. This 321 * mechanism helps in validating these build flags in the early boot phase 322 * either in BL1 or BL31 depending on the platform and assists in identifying 323 * and notifying the features which are enabled but not supported by the PE. 324 * 325 * It reads all the enabled features ID-registers and ensures the features 326 * are supported by the PE. 327 * In case if they aren't it stops booting at an early phase and logs the error 328 * messages, notifying the platforms about the features that are not supported. 329 * 330 * Further the procedure is implemented with a tri-state approach for each feature: 331 * ENABLE_FEAT_xxx = 0 : The feature is disabled statically at compile time 332 * ENABLE_FEAT_xxx = 1 : The feature is enabled and must be present in hardware. 333 * There will be panic if feature is not present at cold boot. 334 * ENABLE_FEAT_xxx = 2 : The feature is enabled but dynamically enabled at runtime 335 * depending on hardware capability. 336 * 337 * For better readability, state values are defined with macros, namely: 338 * { FEAT_STATE_DISABLED, FEAT_STATE_ALWAYS, FEAT_STATE_CHECK }, taking values 339 * { 0, 1, 2 }, respectively, as their naming. 340 **********************************************************************************/ 341 void detect_arch_features(unsigned int core_pos) 342 { 343 /* No need to keep checking after the first time for each core. */ 344 if (detection_done[core_pos]) { 345 return; 346 } 347 348 bool tainted = false; 349 350 /* v8.0 features */ 351 tainted |= check_feature(ENABLE_FEAT_SB, read_feat_sb_id_field(), 352 "SB", 1, 1); 353 tainted |= check_feature(ENABLE_FEAT_CSV2_2, read_feat_csv2_id_field(), 354 "CSV2_2", 2, 3); 355 tainted |= check_feature(ENABLE_FEAT_CLRBHB, read_feat_clrbhb_id_field(), 356 "CLRBHB", 1, 1); 357 /* 358 * Even though the PMUv3 is an OPTIONAL feature, it is always 359 * implemented and Arm prescribes so. So assume it will be there and do 360 * away with a flag for it. This is used to check minor PMUv3px 361 * revisions so that we catch them as they come along 362 */ 363 tainted |= check_feature(FEAT_STATE_ALWAYS, read_feat_pmuv3_id_field(), 364 "PMUv3", 1, ID_AA64DFR0_PMUVER_PMUV3P9); 365 366 /* v8.1 features */ 367 tainted |= check_feature(ENABLE_FEAT_PAN, read_feat_pan_id_field(), 368 "PAN", 1, 3); 369 tainted |= check_feature(ENABLE_FEAT_VHE, read_feat_vhe_id_field(), 370 "VHE", 1, 1); 371 372 /* v8.2 features */ 373 tainted |= check_feature(ENABLE_SVE_FOR_NS, read_feat_sve_id_field(), 374 "SVE", 1, 1); 375 tainted |= check_feature(ENABLE_FEAT_RAS, read_feat_ras_id_field(), 376 "RAS", 1, 2); 377 378 /* v8.3 features */ 379 /* the PAuth fields are very complicated, no min/max is checked */ 380 tainted |= check_feature(ENABLE_PAUTH, is_feat_pauth_present(), 381 "PAUTH", 1, 1); 382 383 /* v8.4 features */ 384 tainted |= check_feature(ENABLE_FEAT_DIT, read_feat_dit_id_field(), 385 "DIT", 1, 1); 386 tainted |= check_feature(ENABLE_FEAT_AMU, read_feat_amu_id_field(), 387 "AMUv1", 1, 2); 388 tainted |= check_feature(ENABLE_FEAT_MOPS, read_feat_mops_id_field(), 389 "MOPS", 1, 1); 390 tainted |= check_feature(ENABLE_FEAT_MPAM, read_feat_mpam_version(), 391 "MPAM", 1, 17); 392 tainted |= check_feature(CTX_INCLUDE_NEVE_REGS, read_feat_nv_id_field(), 393 "NV2", 2, 2); 394 tainted |= check_feature(ENABLE_FEAT_SEL2, read_feat_sel2_id_field(), 395 "SEL2", 1, 1); 396 tainted |= check_feature(ENABLE_TRF_FOR_NS, read_feat_trf_id_field(), 397 "TRF", 1, 1); 398 399 /* v8.5 features */ 400 tainted |= check_feature(ENABLE_FEAT_MTE2, get_armv8_5_mte_support(), 401 "MTE2", MTE_IMPLEMENTED_ELX, MTE_IMPLEMENTED_ASY); 402 tainted |= check_feature(ENABLE_FEAT_RNG, read_feat_rng_id_field(), 403 "RNG", 1, 1); 404 tainted |= check_feature(ENABLE_BTI, read_feat_bti_id_field(), 405 "BTI", 1, 1); 406 tainted |= check_feature(ENABLE_FEAT_RNG_TRAP, read_feat_rng_trap_id_field(), 407 "RNG_TRAP", 1, 1); 408 409 /* v8.6 features */ 410 tainted |= check_feature(ENABLE_FEAT_AMUv1p1, read_feat_amu_id_field(), 411 "AMUv1p1", 2, 2); 412 tainted |= check_feature(ENABLE_FEAT_FGT, read_feat_fgt_id_field(), 413 "FGT", 1, 2); 414 tainted |= check_feature(ENABLE_FEAT_FGT2, read_feat_fgt_id_field(), 415 "FGT2", 2, 2); 416 tainted |= check_feature(ENABLE_FEAT_ECV, read_feat_ecv_id_field(), 417 "ECV", 1, 2); 418 tainted |= check_feature(ENABLE_FEAT_TWED, read_feat_twed_id_field(), 419 "TWED", 1, 1); 420 421 /* 422 * even though this is a "DISABLE" it does confusingly perform feature 423 * enablement duties like all other flags here. Check it against the HW 424 * feature when we intend to diverge from the default behaviour 425 */ 426 tainted |= check_feature(DISABLE_MTPMU, read_feat_mtpmu_id_field(), 427 "MTPMU", 1, 1); 428 429 /* v8.7 features */ 430 tainted |= check_feature(ENABLE_FEAT_HCX, read_feat_hcx_id_field(), 431 "HCX", 1, 1); 432 tainted |= check_feature(ENABLE_FEAT_LS64_ACCDATA, read_feat_ls64_id_field(), 433 "LS64", 1, 3); 434 435 /* v8.9 features */ 436 tainted |= check_feature(ENABLE_FEAT_TCR2, read_feat_tcr2_id_field(), 437 "TCR2", 1, 1); 438 tainted |= check_feature(ENABLE_FEAT_S2PIE, read_feat_s2pie_id_field(), 439 "S2PIE", 1, 1); 440 tainted |= check_feature(ENABLE_FEAT_S1PIE, read_feat_s1pie_id_field(), 441 "S1PIE", 1, 1); 442 tainted |= check_feature(ENABLE_FEAT_S2POE, read_feat_s2poe_id_field(), 443 "S2POE", 1, 1); 444 tainted |= check_feature(ENABLE_FEAT_S1POE, read_feat_s1poe_id_field(), 445 "S1POE", 1, 1); 446 tainted |= check_feature(ENABLE_FEAT_CSV2_3, read_feat_csv2_id_field(), 447 "CSV2_3", 3, 3); 448 tainted |= check_feature(ENABLE_FEAT_DEBUGV8P9, read_feat_debugv8p9_id_field(), 449 "DEBUGV8P9", 11, 11); 450 tainted |= check_feature(ENABLE_FEAT_THE, read_feat_the_id_field(), 451 "THE", 1, 1); 452 tainted |= check_feature(ENABLE_FEAT_SCTLR2, read_feat_sctlr2_id_field(), 453 "SCTLR2", 1, 1); 454 tainted |= check_feature(ENABLE_FEAT_AIE, read_feat_aie_id_field(), 455 "AIE", 1, 1); 456 tainted |= check_feature(ENABLE_FEAT_PFAR, read_feat_pfar_id_field(), 457 "PFAR", 1, 1); 458 459 /* v9.0 features */ 460 tainted |= check_feature(ENABLE_BRBE_FOR_NS, read_feat_brbe_id_field(), 461 "BRBE", 1, 2); 462 tainted |= check_feature(ENABLE_TRBE_FOR_NS, read_feat_trbe_id_field(), 463 "TRBE", 1, 1); 464 465 /* v9.2 features */ 466 tainted |= check_feature(ENABLE_SME_FOR_NS, read_feat_sme_id_field(), 467 "SME", 1, 2); 468 tainted |= check_feature(ENABLE_SME2_FOR_NS, read_feat_sme_id_field(), 469 "SME2", 2, 2); 470 tainted |= check_feature(ENABLE_FEAT_FPMR, read_feat_fpmr_id_field(), 471 "FPMR", 1, 1); 472 473 /* v9.3 features */ 474 tainted |= check_feature(ENABLE_FEAT_D128, read_feat_d128_id_field(), 475 "D128", 1, 1); 476 tainted |= check_feature(ENABLE_FEAT_GCIE, read_feat_gcie_id_field(), 477 "GCIE", 1, 1); 478 tainted |= check_feature(ENABLE_FEAT_MPAM_PE_BW_CTRL, 479 is_feat_mpam_pe_bw_ctrl_present(), 480 "MPAM_PE_BW_CTRL", 1, 1); 481 tainted |= check_feature(ENABLE_FEAT_EBEP, read_feat_ebep_id_field(), 482 "EBEP", 1, 1); 483 484 /* v9.4 features */ 485 tainted |= check_feature(ENABLE_FEAT_GCS, read_feat_gcs_id_field(), 486 "GCS", 1, 1); 487 tainted |= check_feature(ENABLE_RME, read_feat_rme_id_field(), 488 "RME", 1, 2); 489 tainted |= check_feature(ENABLE_FEAT_PAUTH_LR, is_feat_pauth_lr_present(), 490 "PAUTH_LR", 1, 1); 491 tainted |= check_feature(ENABLE_FEAT_FGWTE3, read_feat_fgwte3_id_field(), 492 "FGWTE3", 1, 1); 493 tainted |= check_feature(ENABLE_FEAT_CPA2, read_feat_cpa_id_field(), 494 "CPA2", 2, 2); 495 tainted |= check_feature(ENABLE_FEAT_RME_GDI, read_feat_rme_gdi_id_field(), 496 "RME_GDI", 1, 1); 497 tainted |= check_feature(ENABLE_FEAT_IDTE3, read_feat_idte3_id_field(), 498 "IDTE3", 2, 2); 499 500 if (tainted) { 501 panic(); 502 } 503 504 detection_done[core_pos] = true; 505 } 506