Arm-Trusted-Firmware代码分析_enable_pauth

ATF

BL1

bl1_entrypoint

bl1/bl1.ld.S
ENTRY(bl1_entrypoint)

• el3_entrypoint_common

  _exception_vectors设置el3异常向量, MVBAR

  • bl1_exceptions

    • SynchronousExceptionA64

      • smc_handler64

        • BL1_SMC_RUN_IMAGE

        • smc_handler

          • bl1_smc_handler

            • bl1_fwu_smc_handler

• bl1_setup

  • bl1_early_platform_setup
  • bl1_plat_arch_setup

• pauth_init_enable_el3

  if ENABLE_PAUTH
  PAC

• bl1_main

  • bl1_arch_setup

  • auth_mod_init

    if TRUSTED_BOARD_BOOT

    • crypto_mod_init
    • img_parser_init

  • bl1_platform_setup

    • arm_bl1_platform_setup
    • soc_css_security_setup

  • bl1_plat_get_next_image_id

    • NS_BL2U_IMAGE_ID
    • BL2_IMAGE_ID

  • bl1_load_bl2

    image_id == BL2_IMAGE_ID

    • bl1_plat_get_image_desc

    • bl1_plat_handle_pre_image_load

    • load_auth_image

      • load_auth_image_internal

        • load_auth_image_recursive

          • load_image

          • auth_mod_verify_img

            • img_parser_chec