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