diff options
Diffstat (limited to 'src/arch/arm64/bl31.c')
-rw-r--r-- | src/arch/arm64/bl31.c | 89 |
1 files changed, 62 insertions, 27 deletions
diff --git a/src/arch/arm64/bl31.c b/src/arch/arm64/bl31.c index fb24dff40e..c94b1d101e 100644 --- a/src/arch/arm64/bl31.c +++ b/src/arch/arm64/bl31.c @@ -18,32 +18,75 @@ #include <bl31.h> #include <bootmem.h> #include <cbfs.h> +#include <cbmem.h> #include <console/console.h> #include <program_loading.h> -/* - * 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; +#include <arm-trusted-firmware/include/export/common/bl_common_exp.h> + +static entry_point_info_t bl32_ep_info = { + .h = { + .type = PARAM_EP, + .version = PARAM_VERSION_1, + .size = sizeof(bl32_ep_info), + .attr = EP_SECURE, + }, +}; +static entry_point_info_t bl33_ep_info = { + .h = { + .type = PARAM_EP, + .version = PARAM_VERSION_1, + .size = sizeof(bl33_ep_info), + .attr = EP_NON_SECURE, + }, +}; + +static bl_params_node_t bl32_params_node = { + .image_id = BL32_IMAGE_ID, + .ep_info = &bl32_ep_info, +}; +static bl_params_node_t bl33_params_node = { + .image_id = BL33_IMAGE_ID, + .ep_info = &bl33_ep_info, +}; + +static bl_params_t bl_params = { + .h = { + .type = PARAM_BL_PARAMS, + .version = PARAM_VERSION_2, + .size = sizeof(bl_params), + .attr = 0, + }, + .head = &bl33_params_node, +}; + +static struct bl_aux_param_header *bl_aux_params; -void __weak *soc_get_bl31_plat_params(bl31_params_t *params) +/* Only works when using the default soc_get_bl31_plat_params() below. */ +void register_bl31_aux_param(struct bl_aux_param_header *param) { - /* Default weak implementation. */ - return NULL; + param->next = (uintptr_t)bl_aux_params; + bl_aux_params = param; +} + +/* Default implementation. All newly added SoCs should use this if possible! */ +__weak void *soc_get_bl31_plat_params(void) +{ + static struct bl_aux_param_uint64 cbtable_param = { + .h = { .type = BL_AUX_PARAM_COREBOOT_TABLE, }, + }; + if (!cbtable_param.value) { + cbtable_param.value = (uint64_t)cbmem_find(CBMEM_ID_CBTABLE); + if (cbtable_param.value) + register_bl31_aux_param(&cbtable_param.h); + } + return bl_aux_params; } 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; + void (*bl31_entry)(bl_params_t *params, void *plat_params) = NULL; if (prog_locate(&bl31)) die("BL31 not found"); @@ -52,8 +95,6 @@ void run_bl31(u64 payload_entry, u64 payload_arg0, u64 payload_spsr) 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"); @@ -64,27 +105,21 @@ void run_bl31(u64 payload_entry, u64 payload_arg0, u64 payload_spsr) 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; + bl33_params_node.next_params_info = &bl32_params_node; } - 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); + void *bl31_plat_params = soc_get_bl31_plat_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); + bl31_entry(&bl_params, bl31_plat_params); die("BL31 returned!"); } |