1# 2# Copyright (c) 2015-2025, Arm Limited and Contributors. All rights reserved. 3# 4# SPDX-License-Identifier: BSD-3-Clause 5# 6 7include common/fdt_wrappers.mk 8 9ifeq (${ARCH},aarch32) 10 ifeq (${AARCH32_SP},none) 11 $(error Variable AARCH32_SP has to be set for AArch32) 12 endif 13endif 14 15ifeq (${ARCH}, aarch64) 16 # On ARM standard platorms, the TSP can execute from Trusted SRAM, Trusted 17 # DRAM (if available) or the TZC secured area of DRAM. 18 # TZC secured DRAM is the default. 19 20 ARM_TSP_RAM_LOCATION ?= dram 21 22 ifeq (${ARM_TSP_RAM_LOCATION}, tsram) 23 ARM_TSP_RAM_LOCATION_ID = ARM_TRUSTED_SRAM_ID 24 else ifeq (${ARM_TSP_RAM_LOCATION}, tdram) 25 ARM_TSP_RAM_LOCATION_ID = ARM_TRUSTED_DRAM_ID 26 else ifeq (${ARM_TSP_RAM_LOCATION}, dram) 27 ARM_TSP_RAM_LOCATION_ID = ARM_DRAM_ID 28 else 29 $(error Unsupported ARM_TSP_RAM_LOCATION value) 30 endif 31 32 # Process flags 33 # Process ARM_BL31_IN_DRAM flag 34 ARM_BL31_IN_DRAM := 0 35 $(eval $(call assert_boolean,ARM_BL31_IN_DRAM)) 36 $(eval $(call add_define,ARM_BL31_IN_DRAM)) 37else 38 ARM_TSP_RAM_LOCATION_ID = ARM_TRUSTED_SRAM_ID 39endif 40 41$(eval $(call add_define,ARM_TSP_RAM_LOCATION_ID)) 42 43 44# For the original power-state parameter format, the State-ID can be encoded 45# according to the recommended encoding or zero. This flag determines which 46# State-ID encoding to be parsed. 47ARM_RECOM_STATE_ID_ENC := 0 48 49# If the PSCI_EXTENDED_STATE_ID is set, then ARM_RECOM_STATE_ID_ENC need to 50# be set. Else throw a build error. 51ifeq (${PSCI_EXTENDED_STATE_ID}, 1) 52 ifeq (${ARM_RECOM_STATE_ID_ENC}, 0) 53 $(error Build option ARM_RECOM_STATE_ID_ENC needs to be set if \ 54 PSCI_EXTENDED_STATE_ID is set for ARM platforms) 55 endif 56endif 57 58# Process ARM_RECOM_STATE_ID_ENC flag 59$(eval $(call assert_boolean,ARM_RECOM_STATE_ID_ENC)) 60$(eval $(call add_define,ARM_RECOM_STATE_ID_ENC)) 61 62# Process ARM_DISABLE_TRUSTED_WDOG flag 63# By default, Trusted Watchdog is always enabled unless 64# SPIN_ON_BL1_EXIT or ENABLE_RME is set 65ARM_DISABLE_TRUSTED_WDOG := 0 66ifneq ($(filter 1,${SPIN_ON_BL1_EXIT} ${ENABLE_RME}),) 67ARM_DISABLE_TRUSTED_WDOG := 1 68endif 69$(eval $(call assert_boolean,ARM_DISABLE_TRUSTED_WDOG)) 70$(eval $(call add_define,ARM_DISABLE_TRUSTED_WDOG)) 71 72# Process ARM_CONFIG_CNTACR 73ARM_CONFIG_CNTACR := 1 74$(eval $(call assert_boolean,ARM_CONFIG_CNTACR)) 75$(eval $(call add_define,ARM_CONFIG_CNTACR)) 76 77# Process ARM_BL31_IN_DRAM flag 78ARM_BL31_IN_DRAM := 0 79$(eval $(call assert_boolean,ARM_BL31_IN_DRAM)) 80$(eval $(call add_define,ARM_BL31_IN_DRAM)) 81 82# As per CCA security model, all root firmware must execute from on-chip secure 83# memory. This means we must not run BL31 from TZC-protected DRAM. 84ifeq (${ARM_BL31_IN_DRAM},1) 85 ifeq (${ENABLE_RME},1) 86 $(error BL31 must not run from DRAM on RME-systems. Please set ARM_BL31_IN_DRAM to 0) 87 endif 88endif 89 90# Process ARM_PLAT_MT flag 91ARM_PLAT_MT := 0 92$(eval $(call assert_boolean,ARM_PLAT_MT)) 93$(eval $(call add_define,ARM_PLAT_MT)) 94 95# Use translation tables library v2 by default 96ARM_XLAT_TABLES_LIB_V1 := 0 97$(eval $(call assert_boolean,ARM_XLAT_TABLES_LIB_V1)) 98$(eval $(call add_define,ARM_XLAT_TABLES_LIB_V1)) 99 100# Don't have the Linux kernel as a BL33 image by default 101ARM_LINUX_KERNEL_AS_BL33 := 0 102$(eval $(call assert_boolean,ARM_LINUX_KERNEL_AS_BL33)) 103$(eval $(call add_define,ARM_LINUX_KERNEL_AS_BL33)) 104 105ifeq (${ARM_LINUX_KERNEL_AS_BL33},1) 106 ifneq (${ARCH},aarch64) 107 ifneq (${RESET_TO_SP_MIN},1) 108 $(error ARM_LINUX_KERNEL_AS_BL33 is only available if RESET_TO_SP_MIN=1.) 109 endif 110 endif 111 ifeq (${RESET_TO_BL31},1) 112 ifndef ARM_PRELOADED_DTB_BASE 113 $(error ARM_PRELOADED_DTB_BASE must be set if ARM_LINUX_KERNEL_AS_BL33 is used with RESET_TO_BL31.) 114 endif 115 $(eval $(call add_define,ARM_PRELOADED_DTB_BASE)) 116 endif 117endif 118 119# Add the build options to pack Trusted OS Extra1 and Trusted OS Extra2 images 120# in the FIP if the platform requires. 121ifneq ($(BL32_EXTRA1),) 122$(eval $(call TOOL_ADD_IMG,bl32_extra1,--tos-fw-extra1)) 123endif 124ifneq ($(BL32_EXTRA2),) 125$(eval $(call TOOL_ADD_IMG,bl32_extra2,--tos-fw-extra2)) 126endif 127 128# Enable PSCI_STAT_COUNT/RESIDENCY APIs on ARM platforms 129ENABLE_PSCI_STAT := 1 130ENABLE_PMF := 1 131 132# Override the standard libc with optimised libc_asm 133OVERRIDE_LIBC := 1 134ifeq (${OVERRIDE_LIBC},1) 135 include lib/libc/libc_asm.mk 136endif 137 138# On ARM platforms, separate the code and read-only data sections to allow 139# mapping the former as executable and the latter as execute-never. 140SEPARATE_CODE_AND_RODATA := 1 141 142# On ARM platforms, disable SEPARATE_NOBITS_REGION by default. Both PROGBITS 143# and NOBITS sections of BL31 image are adjacent to each other and loaded 144# into Trusted SRAM. 145SEPARATE_NOBITS_REGION := 0 146 147# In order to support SEPARATE_NOBITS_REGION for Arm platforms, we need to load 148# BL31 PROGBITS into secure DRAM space and BL31 NOBITS into SRAM. Hence mandate 149# the build to require that ARM_BL31_IN_DRAM is enabled as well. 150ifeq ($(SEPARATE_NOBITS_REGION),1) 151 ifneq ($(ARM_BL31_IN_DRAM),1) 152 $(error For SEPARATE_NOBITS_REGION, ARM_BL31_IN_DRAM must be enabled) 153 endif 154 ifneq ($(RECLAIM_INIT_CODE),0) 155 $(error For SEPARATE_NOBITS_REGION, RECLAIM_INIT_CODE cannot be supported) 156 endif 157endif 158 159# Enable PIE support for RESET_TO_BL31/RESET_TO_SP_MIN case 160ifneq ($(filter 1,${RESET_TO_BL31} ${RESET_TO_SP_MIN}),) 161 ENABLE_PIE := 1 162endif 163 164# On Arm platform, disable ARM_FW_CONFIG_LOAD_ENABLE by default. 165ARM_FW_CONFIG_LOAD_ENABLE := 0 166$(eval $(call assert_boolean,ARM_FW_CONFIG_LOAD_ENABLE)) 167$(eval $(call add_define,ARM_FW_CONFIG_LOAD_ENABLE)) 168 169# In order to enable ARM_FW_CONFIG_LOAD_ENABLE for the Arm platform, the 170# platform should be reset to BL2 (RESET_TO_BL2=1), and FW_CONFIG must be 171# specified. 172ifeq (${ARM_FW_CONFIG_LOAD_ENABLE},1) 173 ifneq (${RESET_TO_BL2},1) 174 $(error RESET_TO_BL2 must be enabled when ARM_FW_CONFIG_LOAD_ENABLE \ 175 is enabled) 176 endif 177 ifeq (${FW_CONFIG},) 178 $(error FW_CONFIG must be specified when ARM_FW_CONFIG_LOAD_ENABLE \ 179 is enabled) 180 endif 181endif 182 183# Disable GPT parser support, use FIP image by default 184ARM_GPT_SUPPORT := 0 185$(eval $(call assert_boolean,ARM_GPT_SUPPORT)) 186$(eval $(call add_define,ARM_GPT_SUPPORT)) 187 188# Include necessary sources to parse GPT image 189ifeq (${ARM_GPT_SUPPORT}, 1) 190 BL2_SOURCES += drivers/partition/gpt.c \ 191 drivers/partition/partition.c 192endif 193 194# Enable CRC instructions via extension for ARMv8-A CPUs. 195# For ARMv8.1-A, and onwards CRC instructions are default enabled. 196# Enable HW computed CRC support unconditionally in BL2 component. 197ifeq (${ARM_ARCH_MAJOR},8) 198 ifeq (${ARM_ARCH_MINOR},0) 199 BL2_CPPFLAGS += -march=armv8-a+crc 200 endif 201endif 202 203ifeq ($(PSA_FWU_SUPPORT),1) 204 # GPT support is recommended as per PSA FWU specification hence 205 # PSA FWU implementation is tightly coupled with GPT support, 206 # and it does not support other formats. 207 ifneq ($(ARM_GPT_SUPPORT),1) 208 $(error For PSA_FWU_SUPPORT, ARM_GPT_SUPPORT must be enabled) 209 endif 210 FWU_MK := drivers/fwu/fwu.mk 211 $(info Including ${FWU_MK}) 212 include ${FWU_MK} 213endif 214 215ifeq (${ARCH}, aarch64) 216PLAT_INCLUDES += -Iinclude/plat/arm/common/aarch64 217endif 218 219PLAT_BL_COMMON_SOURCES += plat/arm/common/${ARCH}/arm_helpers.S \ 220 plat/arm/common/arm_common.c \ 221 plat/arm/common/arm_console.c 222 223ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1) 224PLAT_BL_COMMON_SOURCES += lib/xlat_tables/xlat_tables_common.c \ 225 lib/xlat_tables/${ARCH}/xlat_tables.c 226else 227ifeq (${XLAT_MPU_LIB_V1}, 1) 228include lib/xlat_mpu/xlat_mpu.mk 229PLAT_BL_COMMON_SOURCES += ${XLAT_MPU_LIB_V1_SRCS} 230else 231include lib/xlat_tables_v2/xlat_tables.mk 232PLAT_BL_COMMON_SOURCES += ${XLAT_TABLES_LIB_SRCS} 233endif 234endif 235 236ARM_IO_SOURCES += plat/arm/common/arm_io_storage.c \ 237 plat/arm/common/fconf/arm_fconf_io.c 238ifeq (${SPD},spmd) 239 ifeq (${BL2_ENABLE_SP_LOAD},1) 240 ARM_IO_SOURCES += plat/arm/common/fconf/arm_fconf_sp.c 241 endif 242endif 243 244BL1_SOURCES += drivers/io/io_fip.c \ 245 drivers/io/io_memmap.c \ 246 drivers/io/io_storage.c \ 247 plat/arm/common/arm_bl1_setup.c \ 248 plat/arm/common/arm_err.c \ 249 ${ARM_IO_SOURCES} 250 251ifdef EL3_PAYLOAD_BASE 252# Need the plat_arm_program_trusted_mailbox() function to release secondary CPUs from 253# their holding pen 254BL1_SOURCES += plat/arm/common/arm_pm.c 255endif 256 257BL2_SOURCES += drivers/delay_timer/delay_timer.c \ 258 drivers/delay_timer/generic_delay_timer.c \ 259 drivers/io/io_fip.c \ 260 drivers/io/io_memmap.c \ 261 drivers/io/io_storage.c \ 262 plat/arm/common/arm_bl2_setup.c \ 263 plat/arm/common/arm_err.c \ 264 common/tf_crc32.c \ 265 ${ARM_IO_SOURCES} 266 267# Firmware Configuration Framework sources 268include lib/fconf/fconf.mk 269 270BL1_SOURCES += ${FCONF_SOURCES} ${FCONF_DYN_SOURCES} 271BL2_SOURCES += ${FCONF_SOURCES} ${FCONF_DYN_SOURCES} 272 273# Add `libfdt` and Arm common helpers required for Dynamic Config 274include lib/libfdt/libfdt.mk 275 276DYN_CFG_SOURCES += plat/arm/common/arm_dyn_cfg.c \ 277 plat/arm/common/arm_dyn_cfg_helpers.c \ 278 common/uuid.c 279 280DYN_CFG_SOURCES += ${FDT_WRAPPERS_SOURCES} 281 282BL1_SOURCES += ${DYN_CFG_SOURCES} 283BL2_SOURCES += ${DYN_CFG_SOURCES} 284 285ifeq (${RESET_TO_BL2},1) 286BL2_SOURCES += plat/arm/common/arm_bl2_el3_setup.c 287endif 288 289# Because BL1/BL2 execute in AArch64 mode but BL32 in AArch32 we need to use 290# the AArch32 descriptors. 291ifeq (${JUNO_AARCH32_EL3_RUNTIME},1) 292BL2_SOURCES += plat/arm/common/aarch32/arm_bl2_mem_params_desc.c 293else 294ifeq ($(filter $(PLAT), corstone1000 rd1ae),) 295BL2_SOURCES += plat/arm/common/${ARCH}/arm_bl2_mem_params_desc.c 296endif 297endif 298BL2_SOURCES += plat/arm/common/arm_image_load.c \ 299 common/desc_image_load.c 300ifeq (${SPD},opteed) 301BL2_SOURCES += lib/optee/optee_utils.c 302endif 303 304BL2U_SOURCES += drivers/delay_timer/delay_timer.c \ 305 drivers/delay_timer/generic_delay_timer.c \ 306 plat/arm/common/arm_bl2u_setup.c 307 308BL31_SOURCES += plat/arm/common/arm_bl31_setup.c \ 309 plat/arm/common/arm_pm.c \ 310 plat/arm/common/arm_topology.c \ 311 plat/common/plat_psci_common.c 312 313ifeq (${TRANSFER_LIST}, 1) 314 TRANSFER_LIST_SOURCES += plat/arm/common/arm_transfer_list.c 315endif 316 317ifneq ($(filter 1,${ENABLE_PMF} ${ETHOSN_NPU_DRIVER}),) 318ARM_SVC_HANDLER_SRCS := 319 320ifeq (${ENABLE_PMF},1) 321ARM_SVC_HANDLER_SRCS += lib/pmf/pmf_smc.c 322endif 323 324ifeq (${ETHOSN_NPU_DRIVER},1) 325ARM_SVC_HANDLER_SRCS += plat/arm/common/fconf/fconf_ethosn_getter.c \ 326 drivers/delay_timer/delay_timer.c \ 327 drivers/arm/ethosn/ethosn_smc.c 328ifeq (${ETHOSN_NPU_TZMP1},1) 329ARM_SVC_HANDLER_SRCS += drivers/arm/ethosn/ethosn_big_fw.c 330endif 331endif 332 333ifeq (${ARCH}, aarch64) 334BL31_SOURCES += plat/arm/common/aarch64/execution_state_switch.c\ 335 plat/arm/common/arm_sip_svc.c \ 336 plat/arm/common/plat_arm_sip_svc.c \ 337 ${ARM_SVC_HANDLER_SRCS} 338else 339BL32_SOURCES += plat/arm/common/arm_sip_svc.c \ 340 plat/arm/common/plat_arm_sip_svc.c \ 341 ${ARM_SVC_HANDLER_SRCS} 342endif 343endif 344 345ifeq (${EL3_EXCEPTION_HANDLING},1) 346BL31_SOURCES += plat/common/aarch64/plat_ehf.c 347endif 348 349ifeq (${SDEI_SUPPORT},1) 350BL31_SOURCES += plat/arm/common/aarch64/arm_sdei.c 351ifeq (${SDEI_IN_FCONF},1) 352BL31_SOURCES += plat/arm/common/fconf/fconf_sdei_getter.c 353endif 354endif 355 356# RAS sources 357ifeq (${ENABLE_FEAT_RAS}-${HANDLE_EA_EL3_FIRST_NS},1-1) 358BL31_SOURCES += lib/extensions/ras/std_err_record.c \ 359 lib/extensions/ras/ras_common.c 360endif 361 362# Pointer Authentication sources 363ifeq ($(BRANCH_PROTECTION),$(filter $(BRANCH_PROTECTION),1 2 3)) 364PLAT_BL_COMMON_SOURCES += plat/arm/common/aarch64/arm_pauth.c 365endif 366 367ifeq (${SPD},spmd) 368BL31_SOURCES += plat/common/plat_spmd_manifest.c \ 369 common/uuid.c \ 370 ${LIBFDT_SRCS} 371 372BL31_SOURCES += ${FDT_WRAPPERS_SOURCES} 373endif 374 375ifeq (${DRTM_SUPPORT},1) 376BL31_SOURCES += plat/arm/common/arm_err.c 377endif 378 379ifneq ($(filter 1,${MEASURED_BOOT} ${TRUSTED_BOARD_BOOT} ${DRTM_SUPPORT}),) 380 PLAT_INCLUDES += -Iplat/arm/common \ 381 -Iinclude/drivers/auth/mbedtls 382 ifeq (${HASH_ALG}, sha512) 383 ARM_ROTPK_HASH_LEN := 64 384 else ifeq (${HASH_ALG}, sha384) 385 ARM_ROTPK_HASH_LEN := 48 386 else 387 ARM_ROTPK_HASH_LEN := 32 388 endif 389 $(eval $(call add_define,ARM_ROTPK_HASH_LEN)) 390endif 391 392ifneq (${TRUSTED_BOARD_BOOT},0) 393 394 # Include common TBB sources 395 AUTH_SOURCES := drivers/auth/auth_mod.c \ 396 drivers/auth/img_parser_mod.c 397 398 # Include the selected chain of trust sources. 399 ifeq (${COT},tbbr) 400 BL1_SOURCES += drivers/auth/tbbr/tbbr_cot_common.c \ 401 drivers/auth/tbbr/tbbr_cot_bl1.c 402 ifneq (${COT_DESC_IN_DTB},0) 403 BL2_SOURCES += lib/fconf/fconf_cot_getter.c 404 else 405 # Juno has its own TBBR CoT file for BL2 406 ifeq (${PLAT},juno) 407 BL2_SOURCES += drivers/auth/tbbr/tbbr_cot_common.c 408 endif 409 endif 410 else ifeq (${COT},dualroot) 411 BL1_SOURCES += drivers/auth/dualroot/bl1_cot.c 412 ifneq (${COT_DESC_IN_DTB},0) 413 BL2_SOURCES += lib/fconf/fconf_cot_getter.c 414 endif 415 else ifeq (${COT},cca) 416 BL1_SOURCES += drivers/auth/cca/bl1_cot.c 417 ifneq (${COT_DESC_IN_DTB},0) 418 BL2_SOURCES += lib/fconf/fconf_cot_getter.c 419 endif 420 else 421 $(error Unknown chain of trust ${COT}) 422 endif 423 424 ifeq (${COT_DESC_IN_DTB},0) 425 ifeq (${COT},dualroot) 426 COTDTPATH := fdts/dualroot_cot_descriptors.dtsi 427 else ifeq (${COT},cca) 428 COTDTPATH := fdts/cca_cot_descriptors.dtsi 429 else ifeq (${COT},tbbr) 430 ifneq (${PLAT},juno) 431 COTDTPATH := fdts/tbbr_cot_descriptors.dtsi 432 endif 433 endif 434 endif 435 436 BL1_SOURCES += ${AUTH_SOURCES} \ 437 bl1/tbbr/tbbr_img_desc.c \ 438 plat/arm/common/arm_bl1_fwu.c \ 439 plat/common/tbbr/plat_tbbr.c 440 441 BL2_SOURCES += ${AUTH_SOURCES} \ 442 plat/common/tbbr/plat_tbbr.c 443 444 $(eval $(call TOOL_ADD_IMG,ns_bl2u,--fwu,FWU_)) 445 446 IMG_PARSER_LIB_MK := drivers/auth/mbedtls/mbedtls_x509.mk 447 448 $(info Including ${IMG_PARSER_LIB_MK}) 449 include ${IMG_PARSER_LIB_MK} 450endif 451 452# Include Measured Boot makefile before any Crypto library makefile. 453# Crypto library makefile may need default definitions of Measured Boot build 454# flags present in Measured Boot makefile. 455ifneq ($(filter 1,${MEASURED_BOOT} ${DRTM_SUPPORT}),) 456 MEASURED_BOOT_MK := drivers/measured_boot/event_log/event_log.mk 457 $(info Including ${MEASURED_BOOT_MK}) 458 include ${MEASURED_BOOT_MK} 459 460 ifeq (${MEASURED_BOOT},1) 461 BL1_SOURCES += ${EVENT_LOG_SOURCES} 462 BL2_SOURCES += ${EVENT_LOG_SOURCES} 463 endif 464 465 ifeq (${DRTM_SUPPORT},1) 466 BL31_SOURCES += ${EVENT_LOG_SOURCES} 467 endif 468endif 469 470ifneq ($(filter 1,${MEASURED_BOOT} ${TRUSTED_BOARD_BOOT} ${DRTM_SUPPORT}),) 471 CRYPTO_SOURCES := drivers/auth/crypto_mod.c \ 472 lib/fconf/fconf_tbbr_getter.c 473 BL1_SOURCES += ${CRYPTO_SOURCES} 474 BL2_SOURCES += ${CRYPTO_SOURCES} 475 BL31_SOURCES += drivers/auth/crypto_mod.c 476 477 # We expect to locate the *.mk files under the directories specified below 478 CRYPTO_LIB_MK := drivers/auth/mbedtls/mbedtls_crypto.mk 479 480 $(info Including ${CRYPTO_LIB_MK}) 481 include ${CRYPTO_LIB_MK} 482endif 483 484ifeq (${RECLAIM_INIT_CODE}, 1) 485 ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1) 486 $(error To reclaim init code xlat tables v2 must be used) 487 endif 488endif 489 490ifneq ($(COTDTPATH),) 491 cot-dt-defines = IMAGE_BL2 $(BL2_DEFINES) $(PLAT_BL_COMMON_DEFINES) 492 cot-dt-include-dirs = $(BL2_INCLUDE_DIRS) $(PLAT_BL_COMMON_INCLUDE_DIRS) 493 494 cot-dt-cpp-flags = $(cot-dt-defines:%=-D%) 495 cot-dt-cpp-flags += $(cot-dt-include-dirs:%=-I%) 496 497 cot-dt-cpp-flags += $(BL2_CPPFLAGS) $(PLAT_BL_COMMON_CPPFLAGS) 498 cot-dt-cpp-flags += $(CPPFLAGS) $(BL_CPPFLAGS) $(TF_CFLAGS_$(ARCH)) 499 cot-dt-cpp-flags += -c -x assembler-with-cpp -E -P -o $@ $< 500 501 $(BUILD_PLAT)/$(COTDTPATH:.dtsi=.dts): $(COTDTPATH) | $$(@D)/ 502 $(q)$($(ARCH)-cpp) $(cot-dt-cpp-flags) 503 504 $(BUILD_PLAT)/$(COTDTPATH:.dtsi=.c): $(BUILD_PLAT)/$(COTDTPATH:.dtsi=.dts) | $$(@D)/ 505 $(if $(host-poetry),$(q)poetry -q install --no-root) 506 $(q)$(if $(host-poetry),poetry run )cot-dt2c convert-to-c $< $@ 507 508 BL2_SOURCES += $(BUILD_PLAT)/$(COTDTPATH:.dtsi=.c) 509endif 510