From 0a8da746c21818429f3799a1956958830bbf22f6 Mon Sep 17 00:00:00 2001 From: Julius Werner Date: Fri, 2 Aug 2019 12:45:24 -0700 Subject: arm64: Rename arm_tf.c/h to bl31.c/h This patch renames arm_tf.c and arm_tf.h to bl31.c and bl31.h, respectively. That name is closer to the terminology used in most functions related to Trusted Firmware, and it removes the annoying auto-completion clash between arm64/arm_tf.c and arm64/armv8. Change-Id: I2741e2bce9d079b1025f82ecb3bb78a02fe39ed5 Signed-off-by: Julius Werner Reviewed-on: https://review.coreboot.org/c/coreboot/+/34677 Tested-by: build bot (Jenkins) Reviewed-by: Hung-Te Lin --- src/arch/arm64/bl31.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 src/arch/arm64/bl31.c (limited to 'src/arch/arm64/bl31.c') diff --git a/src/arch/arm64/bl31.c b/src/arch/arm64/bl31.c new file mode 100644 index 0000000000..fb24dff40e --- /dev/null +++ b/src/arch/arm64/bl31.c @@ -0,0 +1,90 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * TODO: Many of these structures are currently unused. Better not fill them out + * to make future changes fail fast, rather than try to come up with content + * that might turn out to not make sense. Implement later as required. + * +static image_info_t bl31_image_info; +static image_info_t bl32_image_info; +static image_info_t bl33_image_info; + */ +static entry_point_info_t bl32_ep_info; +static entry_point_info_t bl33_ep_info; +static bl31_params_t bl31_params; + +void __weak *soc_get_bl31_plat_params(bl31_params_t *params) +{ + /* Default weak implementation. */ + return NULL; +} + +void run_bl31(u64 payload_entry, u64 payload_arg0, u64 payload_spsr) +{ + struct prog bl31 = PROG_INIT(PROG_BL31, CONFIG_CBFS_PREFIX"/bl31"); + void (*bl31_entry)(bl31_params_t *params, void *plat_params) = NULL; + + if (prog_locate(&bl31)) + die("BL31 not found"); + + if (!selfload_check(&bl31, BM_MEM_BL31)) + die("BL31 load failed"); + bl31_entry = prog_entry(&bl31); + + SET_PARAM_HEAD(&bl31_params, PARAM_BL31, VERSION_1, 0); + + if (CONFIG(ARM64_USE_SECURE_OS)) { + struct prog bl32 = PROG_INIT(PROG_BL32, + CONFIG_CBFS_PREFIX"/secure_os"); + + if (prog_locate(&bl32)) + die("BL32 not found"); + + if (cbfs_prog_stage_load(&bl32)) + die("BL32 load failed"); + + SET_PARAM_HEAD(&bl32_ep_info, PARAM_EP, VERSION_1, + PARAM_EP_SECURE); + bl32_ep_info.pc = (uintptr_t)prog_entry(&bl32); + bl32_ep_info.spsr = SPSR_EXCEPTION_MASK | + get_eret_el(EL1, SPSR_USE_L); + bl31_params.bl32_ep_info = &bl32_ep_info; + } + + bl31_params.bl33_ep_info = &bl33_ep_info; + + SET_PARAM_HEAD(&bl33_ep_info, PARAM_EP, VERSION_1, PARAM_EP_NON_SECURE); + bl33_ep_info.pc = payload_entry; + bl33_ep_info.spsr = payload_spsr; + bl33_ep_info.args.arg0 = payload_arg0; + + /* May update bl31_params if necessary. */ + void *bl31_plat_params = soc_get_bl31_plat_params(&bl31_params); + + /* MMU disable will flush cache, so passed params land in memory. */ + raw_write_daif(SPSR_EXCEPTION_MASK); + mmu_disable(); + bl31_entry(&bl31_params, bl31_plat_params); + die("BL31 returned!"); +} -- cgit v1.2.3