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/global_data.h>
  11 #include <asm/hob.h>
  12 #include <asm/fsp/fsp_hob.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 static 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
  31 static 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
  41 static 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
  60 static 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
  72 static 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
  92 static 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;   /* Show all by default */
 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
 160 U_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 );