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
do_hob(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])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 );
78