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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 17:43:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 17:43:51 +0000 |
| commit | be58c81aff4cd4c0ccf43dbd7998da4a6a08c03b (patch) | |
| tree | 779c248fb61c83f65d1f0dc867f2053d76b4e03a /bl2/aarch64/bl2_el3_entrypoint.S | |
| parent | Initial commit. (diff) | |
| download | arm-trusted-firmware-upstream.tar.xz arm-trusted-firmware-upstream.zip | |
Adding upstream version 2.10.0+dfsg.upstream/2.10.0+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'bl2/aarch64/bl2_el3_entrypoint.S')
| -rw-r--r-- | bl2/aarch64/bl2_el3_entrypoint.S | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/bl2/aarch64/bl2_el3_entrypoint.S b/bl2/aarch64/bl2_el3_entrypoint.S new file mode 100644 index 0000000..45bac7d --- /dev/null +++ b/bl2/aarch64/bl2_el3_entrypoint.S @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2017-2021, Arm Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <platform_def.h> + +#include <arch.h> +#include <asm_macros.S> +#include <common/bl_common.h> +#include <el3_common_macros.S> + + .globl bl2_entrypoint + +#if BL2_IN_XIP_MEM +#define FIXUP_SIZE 0 +#else +#define FIXUP_SIZE ((BL2_LIMIT) - (BL2_BASE)) +#endif + +func bl2_entrypoint + /* Save arguments x0-x3 from previous Boot loader */ + mov x20, x0 + mov x21, x1 + mov x22, x2 + mov x23, x3 + + el3_entrypoint_common \ + _init_sctlr=1 \ + _warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \ + _secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \ + _init_memory=1 \ + _init_c_runtime=1 \ + _exception_vectors=bl2_el3_exceptions \ + _pie_fixup_size=FIXUP_SIZE + + /* --------------------------------------------- + * Restore parameters of boot rom + * --------------------------------------------- + */ + mov x0, x20 + mov x1, x21 + mov x2, x22 + mov x3, x23 + + /* --------------------------------------------- + * Perform BL2 setup + * --------------------------------------------- + */ + bl bl2_el3_setup + +#if ENABLE_PAUTH + /* --------------------------------------------- + * Program APIAKey_EL1 and enable pointer authentication. + * --------------------------------------------- + */ + bl pauth_init_enable_el3 +#endif /* ENABLE_PAUTH */ + + /* --------------------------------------------- + * Jump to main function. + * --------------------------------------------- + */ + bl bl2_main + + /* --------------------------------------------- + * Should never reach this point. + * --------------------------------------------- + */ + no_ret plat_panic_handler +endfunc bl2_entrypoint |