arch/x86/lib/cmd_hob.c

   1 /*
   2  * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <command.h>
   9 #include <linux/compiler.h>
  10 #include <asm/fsp/fsp_support.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 static char *hob_type[] = {
  15         "reserved",
  16         "Hand-off",
  17         "Memory Allocation",
  18         "Resource Descriptor",
  19         "GUID Extension",
  20         "Firmware Volume",
  21         "CPU",
  22         "Memory Pool",
  23         "reserved",
  24         "Firmware Volume 2",
  25         "Load PEIM Unused",
  26         "UEFI Capsule",
  27 };
  28
  29 int do_hob(cmd_tbl_t *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
  36         hdr = gd->arch.hob_list;
  37
  38         printf("HOB list address: 0x%08x\n\n", (unsigned int)hdr);
  39
  40         printf("No. | Address  | Type                | Length in Bytes\n");
  41         printf("----|----------|---------------------|----------------\n");
  42         while (!end_of_hob(hdr)) {
  43                 printf("%-3d | %08x | ", i, (unsigned int)hdr);
  44                 type = hdr->type;
  45                 if (type == HOB_TYPE_UNUSED)
  46                         desc = "*Unused*";
  47                 else if (type == HOB_TYPE_EOH)
  48                         desc = "*END OF HOB*";
  49                 else if (type >= 0 && type <= ARRAY_SIZE(hob_type))
  50                         desc = hob_type[type];
  51                 else
  52                         desc = "*Invalid Type*";
  53                 printf("%-19s | %-15d\n", desc, hdr->len);
  54                 hdr = get_next_hob(hdr);
  55                 i++;
  56         }
  57
  58         return 0;
  59 }
  60
  61 U_BOOT_CMD(
  62         hob,    1,      1,      do_hob,
  63         "print Firmware Support Package (FSP) Hand-Off Block information",
  64         ""
  65 );