Lee Leahy | 3dad489 | 2015-05-05 11:14:02 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2013-2014 Sage Electronic Engineering, LLC. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
Patrick Georgi | b890a12 | 2015-03-26 15:17:45 +0100 | [diff] [blame^] | 17 | * Foundation, Inc. |
Lee Leahy | 3dad489 | 2015-05-05 11:14:02 -0700 | [diff] [blame] | 18 | */ |
| 19 | |
| 20 | #include <types.h> |
| 21 | #include <string.h> |
| 22 | #include <console/console.h> |
| 23 | #include <lib.h> // hexdump |
| 24 | #include "fsp_util.h" |
| 25 | |
| 26 | |
| 27 | /** Displays a GUID's address and value |
| 28 | * |
| 29 | * @param guid pointer to the GUID to display |
| 30 | */ |
| 31 | void printguid(EFI_GUID *guid) |
| 32 | { |
| 33 | printk(BIOS_SPEW,"Address: %p Guid: %08lx-%04x-%04x-", |
| 34 | guid, (unsigned long)guid->Data1, |
| 35 | guid->Data2, guid->Data3); |
| 36 | printk(BIOS_SPEW,"%02x%02x%02x%02x%02x%02x%02x%02x\n", |
| 37 | guid->Data4[0], guid->Data4[1], |
| 38 | guid->Data4[2], guid->Data4[3], |
| 39 | guid->Data4[4], guid->Data4[5], |
| 40 | guid->Data4[6], guid->Data4[7] ); |
| 41 | } |
| 42 | |
| 43 | void print_hob_mem_attributes(void *Hobptr) |
| 44 | { |
| 45 | EFI_HOB_MEMORY_ALLOCATION *HobMemoryPtr = (EFI_HOB_MEMORY_ALLOCATION *)Hobptr; |
| 46 | EFI_MEMORY_TYPE Hobmemtype = HobMemoryPtr->AllocDescriptor.MemoryType; |
| 47 | u64 Hobmemaddr = HobMemoryPtr->AllocDescriptor.MemoryBaseAddress; |
| 48 | u64 Hobmemlength = HobMemoryPtr->AllocDescriptor.MemoryLength; |
| 49 | const char * Hobmemtypenames[15]; |
| 50 | |
| 51 | Hobmemtypenames[0] = "EfiReservedMemoryType"; |
| 52 | Hobmemtypenames[1] = "EfiLoaderCode"; |
| 53 | Hobmemtypenames[2] = "EfiLoaderData"; |
| 54 | Hobmemtypenames[3] = "EfiBootServicesCode"; |
| 55 | Hobmemtypenames[4] = "EfiBootServicesData"; |
| 56 | Hobmemtypenames[5] = "EfiRuntimeServicesCode"; |
| 57 | Hobmemtypenames[6] = "EfiRuntimeServicesData"; |
| 58 | Hobmemtypenames[7] = "EfiConventionalMemory"; |
| 59 | Hobmemtypenames[8] = "EfiUnusableMemory"; |
| 60 | Hobmemtypenames[9] = "EfiACPIReclaimMemory"; |
| 61 | Hobmemtypenames[10] = "EfiACPIMemoryNVS"; |
| 62 | Hobmemtypenames[11] = "EfiMemoryMappedIO"; |
| 63 | Hobmemtypenames[12] = "EfiMemoryMappedIOPortSpace"; |
| 64 | Hobmemtypenames[13] = "EfiPalCode"; |
| 65 | Hobmemtypenames[14] = "EfiMaxMemoryType"; |
| 66 | |
| 67 | printk(BIOS_SPEW, " Memory type %s (0x%x)\n", |
| 68 | Hobmemtypenames[(u32)Hobmemtype], (u32) Hobmemtype); |
| 69 | printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n", |
| 70 | (unsigned long)Hobmemaddr, (unsigned long)Hobmemlength); |
| 71 | } |
| 72 | |
| 73 | void print_hob_resource_attributes(void *Hobptr) |
| 74 | { |
| 75 | EFI_HOB_RESOURCE_DESCRIPTOR *HobResourcePtr = |
| 76 | (EFI_HOB_RESOURCE_DESCRIPTOR *)Hobptr; |
| 77 | u32 Hobrestype = HobResourcePtr->ResourceType; |
| 78 | u32 Hobresattr = HobResourcePtr->ResourceAttribute; |
| 79 | u64 Hobresaddr = HobResourcePtr->PhysicalStart; |
| 80 | u64 Hobreslength = HobResourcePtr->ResourceLength; |
| 81 | const char *Hobrestypestr = NULL; |
| 82 | |
| 83 | // HOB Resource Types |
| 84 | switch (Hobrestype) { |
| 85 | case EFI_RESOURCE_SYSTEM_MEMORY: |
| 86 | Hobrestypestr = "EFI_RESOURCE_SYSTEM_MEMORY"; break; |
| 87 | case EFI_RESOURCE_MEMORY_MAPPED_IO: |
| 88 | Hobrestypestr = "EFI_RESOURCE_MEMORY_MAPPED_IO"; break; |
| 89 | case EFI_RESOURCE_IO: |
| 90 | Hobrestypestr = "EFI_RESOURCE_IO"; break; |
| 91 | case EFI_RESOURCE_FIRMWARE_DEVICE: |
| 92 | Hobrestypestr = "EFI_RESOURCE_FIRMWARE_DEVICE"; break; |
| 93 | case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT: |
| 94 | Hobrestypestr = "EFI_RESOURCE_MEMORY_MAPPED_IO_PORT"; break; |
| 95 | case EFI_RESOURCE_MEMORY_RESERVED: |
| 96 | Hobrestypestr = "EFI_RESOURCE_MEMORY_RESERVED"; break; |
| 97 | case EFI_RESOURCE_IO_RESERVED: |
| 98 | Hobrestypestr = "EFI_RESOURCE_IO_RESERVED"; break; |
| 99 | case EFI_RESOURCE_MAX_MEMORY_TYPE: |
| 100 | Hobrestypestr = "EFI_RESOURCE_MAX_MEMORY_TYPE"; break; |
| 101 | default: |
| 102 | Hobrestypestr = "EFI_RESOURCE_UNKNOWN"; break; |
| 103 | } |
| 104 | |
| 105 | printk(BIOS_SPEW, " Resource %s (0x%0x) has attributes 0x%0x\n", |
| 106 | Hobrestypestr, Hobrestype, Hobresattr); |
| 107 | printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n", |
| 108 | (unsigned long)Hobresaddr, (unsigned long)Hobreslength); |
| 109 | } |
| 110 | |
| 111 | const char * get_hob_type_string(void *Hobptr) |
| 112 | { |
| 113 | EFI_HOB_GENERIC_HEADER *HobHeaderPtr = (EFI_HOB_GENERIC_HEADER *)Hobptr; |
| 114 | u16 Hobtype = HobHeaderPtr->HobType; |
| 115 | const char *Hobtypestring = NULL; |
| 116 | |
| 117 | switch (Hobtype) { |
| 118 | case EFI_HOB_TYPE_HANDOFF: |
| 119 | Hobtypestring = "EFI_HOB_TYPE_HANDOFF"; break; |
| 120 | case EFI_HOB_TYPE_MEMORY_ALLOCATION: |
| 121 | Hobtypestring = "EFI_HOB_TYPE_MEMORY_ALLOCATION"; break; |
| 122 | case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR: |
| 123 | Hobtypestring = "EFI_HOB_TYPE_RESOURCE_DESCRIPTOR"; break; |
| 124 | case EFI_HOB_TYPE_GUID_EXTENSION: |
| 125 | Hobtypestring = "EFI_HOB_TYPE_GUID_EXTENSION"; break; |
| 126 | case EFI_HOB_TYPE_MEMORY_POOL: |
| 127 | Hobtypestring = "EFI_HOB_TYPE_MEMORY_POOL"; break; |
| 128 | case EFI_HOB_TYPE_UNUSED: |
| 129 | Hobtypestring = "EFI_HOB_TYPE_UNUSED"; break; |
| 130 | case EFI_HOB_TYPE_END_OF_HOB_LIST: |
| 131 | Hobtypestring = "EFI_HOB_TYPE_END_OF_HOB_LIST"; break; |
| 132 | default: |
| 133 | Hobtypestring = "EFI_HOB_TYPE_UNRECOGNIZED"; break; |
| 134 | } |
| 135 | |
| 136 | return Hobtypestring; |
| 137 | } |
| 138 | |
| 139 | /** Displays the length, location, and GUID value of a GUID extension |
| 140 | * |
| 141 | * The EFI_HOB_GUID_TYPE is very basic - it just contains the standard |
| 142 | * HOB header containing the HOB type and length, and a GUID for |
| 143 | * identification. The rest of the data is undefined and must be known |
| 144 | * based on the GUID. |
| 145 | * |
| 146 | * This displays the entire HOB length, and the location of the start |
| 147 | * of the HOB, *NOT* the length of or the start of the data inside the HOB. |
| 148 | * |
| 149 | * @param Hobptr |
| 150 | */ |
| 151 | void print_guid_type_attributes(void *Hobptr) |
| 152 | { |
| 153 | printk(BIOS_SPEW, " at location %p with length0x%0lx\n ", |
| 154 | Hobptr, (unsigned long)(((EFI_PEI_HOB_POINTERS *) \ |
| 155 | Hobptr)->Guid->Header.HobLength)); |
| 156 | printguid(&(((EFI_HOB_GUID_TYPE *)Hobptr)->Name)); |
| 157 | |
| 158 | } |
| 159 | |
| 160 | /* Print out a structure of all the HOBs |
| 161 | * that match a certain type: |
| 162 | * Print all types (0x0000) |
| 163 | * EFI_HOB_TYPE_HANDOFF (0x0001) |
| 164 | * EFI_HOB_TYPE_MEMORY_ALLOCATION (0x0002) |
| 165 | * EFI_HOB_TYPE_RESOURCE_DESCRIPTOR (0x0003) |
| 166 | * EFI_HOB_TYPE_GUID_EXTENSION (0x0004) |
| 167 | * EFI_HOB_TYPE_MEMORY_POOL (0x0007) |
| 168 | * EFI_HOB_TYPE_UNUSED (0xFFFE) |
| 169 | * EFI_HOB_TYPE_END_OF_HOB_LIST (0xFFFF) |
| 170 | */ |
| 171 | void print_hob_type_structure(u16 Hobtype, void *Hoblistptr) |
| 172 | { |
| 173 | u32 *Currenthob; |
| 174 | u32 *Nexthob = 0; |
| 175 | u8 Lasthob = 0; |
| 176 | u32 Currenttype; |
| 177 | const char *Currenttypestr; |
| 178 | |
| 179 | Currenthob = Hoblistptr; |
| 180 | |
| 181 | /* Print out HOBs of our desired type until |
| 182 | * the end of the HOB list |
| 183 | */ |
| 184 | printk(BIOS_DEBUG, "\n=== FSP HOB Data Structure ===\n"); |
| 185 | printk(BIOS_DEBUG, "FSP Hoblistptr: 0x%0x\n", |
| 186 | (u32) Hoblistptr); |
| 187 | do { |
| 188 | EFI_HOB_GENERIC_HEADER *CurrentHeaderPtr = |
| 189 | (EFI_HOB_GENERIC_HEADER *)Currenthob; |
| 190 | Currenttype = CurrentHeaderPtr->HobType; /* Get the type of this HOB */ |
| 191 | Currenttypestr = get_hob_type_string(Currenthob); |
| 192 | |
| 193 | if (Currenttype == Hobtype || Hobtype == 0x0000) { |
| 194 | printk(BIOS_DEBUG, "HOB 0x%0x is an %s (type 0x%0x)\n", |
| 195 | (u32) Currenthob, Currenttypestr, Currenttype); |
| 196 | switch (Currenttype) { |
| 197 | case EFI_HOB_TYPE_MEMORY_ALLOCATION: |
| 198 | print_hob_mem_attributes(Currenthob); break; |
| 199 | case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR: |
| 200 | print_hob_resource_attributes(Currenthob); break; |
| 201 | case EFI_HOB_TYPE_GUID_EXTENSION: |
| 202 | print_guid_type_attributes(Currenthob); break; |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | Lasthob = END_OF_HOB_LIST(Currenthob); /* Check for end of HOB list */ |
| 207 | if (!Lasthob) { |
| 208 | Nexthob = GET_NEXT_HOB(Currenthob); /* Get next HOB pointer */ |
| 209 | Currenthob = Nexthob; // Start on next HOB |
| 210 | } |
| 211 | } while (!Lasthob); |
| 212 | printk(BIOS_DEBUG, "=== End of FSP HOB Data Structure ===\n\n"); |
| 213 | } |
| 214 | |
| 215 | |
| 216 | /** Finds a HOB entry based on type and guid |
| 217 | * |
| 218 | * @param current_hob pointer to the start of the HOB list |
| 219 | * @param guid the GUID of the HOB entry to find |
| 220 | * @return pointer to the start of the requested HOB or NULL if not found. |
| 221 | */ |
| 222 | void * find_hob_by_guid(void *current_hob, EFI_GUID *guid) |
| 223 | { |
| 224 | do { |
| 225 | switch (((EFI_HOB_GENERIC_HEADER *)current_hob)->HobType) { |
| 226 | |
| 227 | case EFI_HOB_TYPE_MEMORY_ALLOCATION: |
| 228 | if (guids_are_equal(guid, &(((EFI_HOB_MEMORY_ALLOCATION *) \ |
| 229 | current_hob)->AllocDescriptor.Name))) |
| 230 | return current_hob; |
| 231 | break; |
| 232 | case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR: |
| 233 | if (guids_are_equal(guid, |
| 234 | &(((EFI_HOB_RESOURCE_DESCRIPTOR *) \ |
| 235 | current_hob)->Owner))) |
| 236 | return current_hob; |
| 237 | break; |
| 238 | case EFI_HOB_TYPE_GUID_EXTENSION: |
| 239 | if (guids_are_equal(guid, &(((EFI_HOB_GUID_TYPE *) \ |
| 240 | current_hob)->Name))) |
| 241 | return current_hob; |
| 242 | break; |
| 243 | } |
| 244 | |
| 245 | if (!END_OF_HOB_LIST(current_hob)) |
| 246 | current_hob = GET_NEXT_HOB(current_hob); /* Get next HOB pointer */ |
| 247 | } while (!END_OF_HOB_LIST(current_hob)); |
| 248 | |
| 249 | return NULL; |
| 250 | } |
| 251 | |
| 252 | /** Compares a pair of GUIDs to see if they are equal |
| 253 | * |
| 254 | * GUIDs are 128 bits long, so compare them as pairs of quadwords. |
| 255 | * |
| 256 | * @param guid1 pointer to the first of the GUIDs to compare |
| 257 | * @param guid2 pointer to the second of the GUIDs to compare |
| 258 | * @return 1 if the GUIDs were equal, 0 if GUIDs were not equal |
| 259 | */ |
| 260 | uint8_t guids_are_equal(EFI_GUID *guid1, EFI_GUID *guid2) |
| 261 | { |
| 262 | uint64_t* guid_1 = (void *) guid1; |
| 263 | uint64_t* guid_2 = (void *) guid2; |
| 264 | |
| 265 | if ((*(guid_1) != *(guid_2)) || (*(guid_1 + 1) != *(guid_2 + 1))) |
| 266 | return 0; |
| 267 | |
| 268 | return 1; |
| 269 | } |