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5fb061e761
For v8-R64, especially R82, creating code to run BL1 at EL2, using MPU. Signed-off-by: Gary Morrison <gary.morrison@arm.com> Change-Id: I439ac3915b982ad1e61d24365bdd1584b3070425
70 lines
2.2 KiB
ArmAsm
70 lines
2.2 KiB
ArmAsm
/*
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* Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <arch.h>
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#include <el2_common_macros.S>
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.globl bl1_entrypoint
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/* -----------------------------------------------------
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* bl1_entrypoint() is the entry point into the trusted
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* firmware code when a cpu is released from warm or
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* cold reset.
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* -----------------------------------------------------
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*/
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func bl1_entrypoint
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/* ---------------------------------------------------------------------
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* If the reset address is programmable then bl1_entrypoint() is
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* executed only on the cold boot path. Therefore, we can skip the warm
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* boot mailbox mechanism.
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* ---------------------------------------------------------------------
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*/
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el2_entrypoint_common \
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_init_sctlr=1 \
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_warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \
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_secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \
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_init_memory=1 \
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_init_c_runtime=1 \
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_exception_vectors=bl1_exceptions \
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_pie_fixup_size=0
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/* --------------------------------------------------------------------
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* Perform BL1 setup
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* --------------------------------------------------------------------
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*/
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bl bl1_setup
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#if ENABLE_PAUTH
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/* --------------------------------------------------------------------
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* Program APIAKey_EL1 and enable pointer authentication.
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* --------------------------------------------------------------------
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*/
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bl pauth_init_enable_el2
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#endif /* ENABLE_PAUTH */
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/* --------------------------------------------------------------------
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* Initialize platform and jump to our c-entry point
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* for this type of reset.
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* --------------------------------------------------------------------
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*/
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bl bl1_main
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#if ENABLE_PAUTH
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/* --------------------------------------------------------------------
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* Disable pointer authentication before jumping to next boot image.
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* --------------------------------------------------------------------
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*/
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bl pauth_disable_el2
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#endif /* ENABLE_PAUTH */
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/* --------------------------------------------------
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* Do the transition to next boot image.
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* --------------------------------------------------
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*/
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b el2_exit
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endfunc bl1_entrypoint
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