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 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; /* 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 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