cmd/x86/hob.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2014-2015, Bin Meng <bmeng.cn@gmail.com>
   4  */
   5
   6 #include <common.h>
   7 #include <command.h>
   8 #include <efi.h>
   9 #include <asm/hob.h>
  10
  11 DECLARE_GLOBAL_DATA_PTR;
  12
  13 static char *hob_type[] = {
  14         "reserved",
  15         "Hand-off",
  16         "Mem Alloc",
  17         "Res Desc",
  18         "GUID Ext",
  19         "FV",
  20         "CPU",
  21         "Mem Pool",
  22         "reserved",
  23         "FV2",
  24         "Load PEIM",
  25         "Capsule",
  26 };
  27
  28 static int do_hob(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  29 {
  30         const struct hob_header *hdr;
  31         uint type;
  32         char *desc;
  33         int i = 0;
  34         efi_guid_t *guid;
  35         char uuid[UUID_STR_LEN + 1];
  36
  37         hdr = gd->arch.hob_list;
  38
  39         printf("HOB list address: 0x%08x\n\n", (unsigned int)hdr);
  40
  41         printf("#  | Address  | Type      | Len  | ");
  42         printf("%36s\n", "GUID");
  43         printf("---|----------|-----------|------|-");
  44         printf("------------------------------------\n");
  45         while (!end_of_hob(hdr)) {
  46                 printf("%02x | %08x | ", i, (unsigned int)hdr);
  47                 type = hdr->type;
  48                 if (type == HOB_TYPE_UNUSED)
  49                         desc = "*Unused*";
  50                 else if (type == HOB_TYPE_EOH)
  51                         desc = "*EOH*";
  52                 else if (type >= 0 && type <= ARRAY_SIZE(hob_type))
  53                         desc = hob_type[type];
  54                 else
  55                         desc = "*Invalid*";
  56                 printf("%-9s | %04x | ", desc, hdr->len);
  57
  58                 if (type == HOB_TYPE_MEM_ALLOC || type == HOB_TYPE_RES_DESC ||
  59                     type == HOB_TYPE_GUID_EXT) {
  60                         guid = (efi_guid_t *)(hdr + 1);
  61                         uuid_bin_to_str(guid->b, uuid, UUID_STR_FORMAT_GUID);
  62                         printf("%s", uuid);
  63                 } else {
  64                         printf("%36s", "Not Available");
  65                 }
  66                 printf("\n");
  67                 hdr = get_next_hob(hdr);
  68                 i++;
  69         }
  70
  71         return 0;
  72 }
  73
  74 U_BOOT_CMD(hob, 1, 1, do_hob,
  75            "Print Hand-Off Block (HOB) information",
  76            ""
  77 );