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 <uuid.h>
  10 #include <asm/hob.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 static char *hob_type[] = {
  15         "reserved",
  16         "Hand-off",
  17         "Mem Alloc",
  18         "Res Desc",
  19         "GUID Ext",
  20         "FV",
  21         "CPU",
  22         "Mem Pool",
  23         "reserved",
  24         "FV2",
  25         "Load PEIM",
  26         "Capsule",
  27 };
  28
  29 static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  30 {
  31         const struct hob_header *hdr;
  32         uint type;
  33         char *desc;
  34         int i = 0;
  35         efi_guid_t *guid;
  36         char uuid[UUID_STR_LEN + 1];
  37
  38         hdr = gd->arch.hob_list;
  39
  40         printf("HOB list address: 0x%08x\n\n", (unsigned int)hdr);
  41
  42         printf("#  | Address  | Type      | Len  | ");
  43         printf("%36s\n", "GUID");
  44         printf("---|----------|-----------|------|-");
  45         printf("------------------------------------\n");
  46         while (!end_of_hob(hdr)) {
  47                 printf("%02x | %08x | ", i, (unsigned int)hdr);
  48                 type = hdr->type;
  49                 if (type == HOB_TYPE_UNUSED)
  50                         desc = "*Unused*";
  51                 else if (type == HOB_TYPE_EOH)
  52                         desc = "*EOH*";
  53                 else if (type >= 0 && type <= ARRAY_SIZE(hob_type))
  54                         desc = hob_type[type];
  55                 else
  56                         desc = "*Invalid*";
  57                 printf("%-9s | %04x | ", desc, hdr->len);
  58
  59                 if (type == HOB_TYPE_MEM_ALLOC || type == HOB_TYPE_RES_DESC ||
  60                     type == HOB_TYPE_GUID_EXT) {
  61                         guid = (efi_guid_t *)(hdr + 1);
  62                         uuid_bin_to_str(guid->b, uuid, UUID_STR_FORMAT_GUID);
  63                         printf("%s", uuid);
  64                 } else {
  65                         printf("%36s", "Not Available");
  66                 }
  67                 printf("\n");
  68                 hdr = get_next_hob(hdr);
  69                 i++;
  70         }
  71
  72         return 0;
  73 }
  74
  75 U_BOOT_CMD(hob, 1, 1, do_hob,
  76            "Print Hand-Off Block (HOB) information",
  77            ""
  78 );