bootblock_normal.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <cbfs.h>
#include <fallback.h>
#include <program_loading.h>
#include <stddef.h>
 
static const char *get_fallback(const char *stagelist)
{
        while (*stagelist)
                stagelist++;
        return ++stagelist;
}
 
enum cb_err legacy_romstage_select_and_load(struct prog *romstage)
{
        static const char *default_filenames = "normal/romstage\0fallback/romstage";
        const char *boot_candidate;
        size_t stages_len;
 
        boot_candidate = cbfs_map("coreboot-stages", &stages_len);
        if (!boot_candidate)
                boot_candidate = default_filenames;
 
        if (do_normal_boot()) {
                romstage->name = boot_candidate;
                if (cbfs_prog_stage_load(romstage) == CB_SUCCESS)
                        return CB_SUCCESS;
        }
 
        romstage->name = get_fallback(boot_candidate);
        return cbfs_prog_stage_load(romstage);
}