src/arch/x86/bootblock_normal.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <cbfs.h>
   4 #include <fallback.h>
   5 #include <program_loading.h>
   6 #include <stddef.h>
   7
   8 static const char *get_fallback(const char *stagelist)
   9 {
  10         while (*stagelist)
  11                 stagelist++;
  12         return ++stagelist;
  13 }
  14
  15 enum cb_err legacy_romstage_select_and_load(struct prog *romstage)
  16 {
  17         static const char *default_filenames = "normal/romstage\0fallback/romstage";
  18         const char *boot_candidate;
  19         size_t stages_len;
  20
  21         boot_candidate = cbfs_map("coreboot-stages", &stages_len);
  22         if (!boot_candidate)
  23                 boot_candidate = default_filenames;
  24
  25         if (do_normal_boot()) {
  26                 romstage->name = boot_candidate;
  27                 if (cbfs_prog_stage_load(romstage) == CB_SUCCESS)
  28                         return CB_SUCCESS;
  29         }
  30
  31         romstage->name = get_fallback(boot_candidate);
  32         return cbfs_prog_stage_load(romstage);
  33 }