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6#include <common.h>
7#include <command.h>
8#include <efi.h>
9#include <uuid.h>
10#include <asm/global_data.h>
11#include <asm/hob.h>
12#include <asm/fsp/fsp_hob.h>
13
14DECLARE_GLOBAL_DATA_PTR;
15
16static char *hob_type[] = {
17 "reserved",
18 "Hand-off",
19 "Mem Alloc",
20 "Res Desc",
21 "GUID Ext",
22 "FV",
23 "CPU",
24 "Mem Pool",
25 "reserved",
26 "FV2",
27 "Load PEIM",
28 "Capsule",
29};
30
31static char *res_type[] = {
32 "System",
33 "Memory-mapped I/O",
34 "I/O",
35 "Firmware device",
36 "Memory-mapped I/O port",
37 "Reserved",
38 "I/O reserved",
39};
40
41static struct guid_name {
42 efi_guid_t guid;
43 const char *name;
44} guid_name[] = {
45 { FSP_HOB_RESOURCE_OWNER_TSEG_GUID, "TSEG" },
46 { FSP_HOB_RESOURCE_OWNER_FSP_GUID, "FSP" },
47 { FSP_HOB_RESOURCE_OWNER_SMM_PEI_SMRAM_GUID, "SMM PEI SMRAM" },
48 { FSP_NON_VOLATILE_STORAGE_HOB_GUID, "NVS" },
49 { FSP_VARIABLE_NV_DATA_HOB_GUID, "Variable NVS" },
50 { FSP_GRAPHICS_INFO_HOB_GUID, "Graphics info" },
51 { FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID1, "PCD database ea" },
52 { FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID2, "PCD database 9b" },
53 { FSP_HOB_RESOURCE_OWNER_PEIM_DXE_GUID, "PEIM Init DXE" },
54 { FSP_HOB_RESOURCE_OWNER_ALLOC_STACK_GUID, "Alloc stack" },
55 { FSP_HOB_RESOURCE_OWNER_SMBIOS_MEMORY_GUID, "SMBIOS memory" },
56 { {}, "zero-guid" },
57 {}
58};
59
60static const char *guid_to_name(const efi_guid_t *guid)
61{
62 struct guid_name *entry;
63
64 for (entry = guid_name; entry->name; entry++) {
65 if (!guidcmp(guid, &entry->guid))
66 return entry->name;
67 }
68
69 return NULL;
70}
71
72static void show_hob_details(const struct hob_header *hdr)
73{
74 const void *ptr = hdr;
75
76 switch (hdr->type) {
77 case HOB_TYPE_RES_DESC: {
78 const struct hob_res_desc *res = ptr;
79 const char *typename;
80
81 typename = res->type >= RES_SYS_MEM && res->type <= RES_MAX_MEM_TYPE ?
82 res_type[res->type] : "unknown";
83
84 printf(" base = %08llx, len = %08llx, end = %08llx, type = %d (%s)\n\n",
85 res->phys_start, res->len, res->phys_start + res->len,
86 res->type, typename);
87 break;
88 }
89 }
90}
91
92static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
93{
94 const struct hob_header *hdr;
95 uint type;
96 char *desc;
97 int i = 0;
98 efi_guid_t *guid;
99 char uuid[UUID_STR_LEN + 1];
100 bool verbose = false;
101 int seq = -1;
102
103 argc--;
104 argv++;
105 if (argc) {
106 if (!strcmp("-v", *argv)) {
107 verbose = true;
108 argc--;
109 argv++;
110 }
111 if (argc)
112 seq = simple_strtol(*argv, NULL, 16);
113 }
114 hdr = gd->arch.hob_list;
115
116 printf("HOB list address: 0x%08x\n\n", (unsigned int)hdr);
117
118 printf("# | Address | Type | Len | ");
119 printf("%36s\n", "GUID");
120 printf("---|----------|-----------|------|-");
121 printf("------------------------------------\n");
122 for (i = 0; !end_of_hob(hdr); i++, hdr = get_next_hob(hdr)) {
123 if (seq != -1 && seq != i)
124 continue;
125 printf("%02x | %08x | ", i, (unsigned int)hdr);
126 type = hdr->type;
127 if (type == HOB_TYPE_UNUSED)
128 desc = "*Unused*";
129 else if (type == HOB_TYPE_EOH)
130 desc = "*EOH*";
131 else if (type >= 0 && type <= ARRAY_SIZE(hob_type))
132 desc = hob_type[type];
133 else
134 desc = "*Invalid*";
135 printf("%-9s | %04x | ", desc, hdr->len);
136
137 if (type == HOB_TYPE_MEM_ALLOC || type == HOB_TYPE_RES_DESC ||
138 type == HOB_TYPE_GUID_EXT) {
139 const char *name;
140
141 guid = (efi_guid_t *)(hdr + 1);
142 name = guid_to_name(guid);
143 if (!name) {
144 uuid_bin_to_str(guid->b, uuid,
145 UUID_STR_FORMAT_GUID);
146 name = uuid;
147 }
148 printf("%36s", name);
149 } else {
150 printf("%36s", "Not Available");
151 }
152 printf("\n");
153 if (verbose)
154 show_hob_details(hdr);
155 }
156
157 return 0;
158}
159
160U_BOOT_CMD(hob, 3, 1, do_hob,
161 "[-v] [seq] Print Hand-Off Block (HOB) information",
162 " -v - Show detailed HOB information where available\n"
163 " seq - Record # to show (all by default)"
164);
165
