blob: 7f1e49accf4524567d7d812ef5714803116c15b7 [file] [log] [blame]
Aaron Durbina5be7fa2015-09-10 22:52:27 -05001/*
2 * This file is part of the coreboot project.
3 *
4 * Copyright 2015 Google Inc
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.
Aaron Durbina5be7fa2015-09-10 22:52:27 -050014 */
15
16#include <console/console.h>
Aaron Durbin923b4d52015-09-30 16:48:26 -050017#include <commonlib/endian.h>
Furquan Shaikhb0c2fe02016-05-09 12:23:01 -070018#include <commonlib/fsp.h>
Stefan Reinauerf76ceea2016-01-30 02:05:56 -080019/*
20 * Intel's code does not have a handle on changing global packing state.
21 * Therefore, one needs to protect against packing policies that are set
22 * globally for a compliation unit just by including a header file.
23 */
24#pragma pack(push)
25
26/* Default bind FSP 1.1 API to edk2 UEFI 2.4 types. */
27#include <vendorcode/intel/edk2/uefi_2.4/uefi_types.h>
28#include <vendorcode/intel/fsp/fsp1_1/IntelFspPkg/Include/FspInfoHeader.h>
29
30/* Restore original packing policy. */
31#pragma pack(pop)
32
Aaron Durbin923b4d52015-09-30 16:48:26 -050033#include <commonlib/helpers.h>
Aaron Durbina5be7fa2015-09-10 22:52:27 -050034#include <stdlib.h>
35#include <stdint.h>
36#include <string.h>
37
38#define FSP_DBG_LVL BIOS_NEVER
39
40/*
41 * UEFI defines everything as little endian. However, this piece of code
42 * can be integrated in a userland tool. That tool could be on a big endian
43 * machine so one needs to access the fields within UEFI structures using
44 * endian-aware accesses.
45 */
46
47/* Return 0 if equal. Non-zero if not equal. */
48static int guid_compare(const EFI_GUID *le_guid, const EFI_GUID *native_guid)
49{
Aaron Durbin923b4d52015-09-30 16:48:26 -050050 if (read_le32(&le_guid->Data1) != native_guid->Data1)
Aaron Durbina5be7fa2015-09-10 22:52:27 -050051 return 1;
Aaron Durbin923b4d52015-09-30 16:48:26 -050052 if (read_le16(&le_guid->Data2) != native_guid->Data2)
Aaron Durbina5be7fa2015-09-10 22:52:27 -050053 return 1;
Aaron Durbin923b4d52015-09-30 16:48:26 -050054 if (read_le16(&le_guid->Data3) != native_guid->Data3)
Aaron Durbina5be7fa2015-09-10 22:52:27 -050055 return 1;
56 return memcmp(le_guid->Data4, native_guid->Data4,
57 ARRAY_SIZE(le_guid->Data4));
58}
59
Aaron Durbina5be7fa2015-09-10 22:52:27 -050060static const EFI_GUID ffs2_guid = EFI_FIRMWARE_FILE_SYSTEM2_GUID;
61static const EFI_GUID fih_guid = FSP_INFO_HEADER_GUID;
62
63struct fsp_patch_table {
64 uint32_t signature;
65 uint16_t header_length;
66 uint8_t header_revision;
67 uint8_t reserved;
68 uint32_t patch_entry_num;
69 uint32_t patch_entries[0];
70} __attribute__((packed));
71
72#define FSPP_SIG 0x50505346
73
74static void *relative_offset(void *base, ssize_t offset)
75{
76 uintptr_t loc;
77
78 loc = (uintptr_t)base;
79 loc += offset;
80
81 return (void *)loc;
82}
83
84static uint32_t *fspp_reloc(void *fsp, size_t fsp_size, uint32_t e)
85{
86 size_t offset;
87
88 /* Offsets live in bits 23:0. */
89 offset = e & 0xffffff;
90
91 /* If bit 31 is set then the offset is considered a negative value
92 * relative to the end of the image using 16MiB as the offset's
93 * reference. */
94 if (e & (1 << 31))
95 offset = fsp_size - (16 * MiB - offset);
96
97 /* Determine if offset falls within fsp_size for a 32 bit relocation. */
98 if (offset > fsp_size - sizeof(uint32_t))
99 return NULL;
100
101 return relative_offset(fsp, offset);
102}
103
104static int reloc_type(uint16_t reloc_entry)
105{
106 /* Reloc type in upper 4 bits */
107 return reloc_entry >> 12;
108}
109
110static size_t reloc_offset(uint16_t reloc_entry)
111{
112 /* Offsets are in low 12 bits. */
113 return reloc_entry & ((1 << 12) - 1);
114}
115
Aaron Durbin923b4d52015-09-30 16:48:26 -0500116static int te_relocate(uintptr_t new_addr, void *te)
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500117{
118 EFI_TE_IMAGE_HEADER *teih;
119 EFI_IMAGE_DATA_DIRECTORY *relocd;
120 EFI_IMAGE_BASE_RELOCATION *relocb;
121 uintptr_t image_base;
122 size_t fixup_offset;
123 size_t num_relocs;
124 uint16_t *reloc;
125 size_t relocd_offset;
126 uint8_t *te_base;
127 uint32_t adj;
128
129 teih = te;
130
Aaron Durbin923b4d52015-09-30 16:48:26 -0500131 if (read_le16(&teih->Signature) != EFI_TE_IMAGE_HEADER_SIGNATURE) {
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500132 printk(BIOS_ERR, "TE Signature mismatch: %x vs %x\n",
Aaron Durbin923b4d52015-09-30 16:48:26 -0500133 read_le16(&teih->Signature),
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500134 EFI_TE_IMAGE_HEADER_SIGNATURE);
135 return -1;
136 }
137
138 /*
139 * A TE image is created by converting a PE file. Because of this
140 * the offsets within the headers are off. In order to calculate
141 * the correct releative offets one needs to subtract fixup_offset
142 * from the encoded offets. Similarly, the linked address of the
143 * program is found by adding the fixup_offset to the ImageBase.
144 */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500145 fixup_offset = read_le16(&teih->StrippedSize);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500146 fixup_offset -= sizeof(EFI_TE_IMAGE_HEADER);
147 /* Keep track of a base that is correctly adjusted so that offsets
148 * can be used directly. */
149 te_base = te;
150 te_base -= fixup_offset;
151
Aaron Durbin923b4d52015-09-30 16:48:26 -0500152 image_base = read_le64(&teih->ImageBase);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500153 adj = new_addr - (image_base + fixup_offset);
154
155 printk(FSP_DBG_LVL, "TE Image %p -> %p adjust value: %x\n",
156 (void *)image_base, (void *)new_addr, adj);
157
158 /* Adjust ImageBase for consistency. */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500159 write_le64(&teih->ImageBase, (uint32_t)(image_base + adj));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500160
161 relocd = &teih->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_BASERELOC];
162
163 relocd_offset = 0;
164 /* Though the field name is VirtualAddress it's actually relative to
165 * the beginning of the image which is linked at ImageBase. */
166 relocb = relative_offset(te,
Aaron Durbin923b4d52015-09-30 16:48:26 -0500167 read_le32(&relocd->VirtualAddress) - fixup_offset);
168 while (relocd_offset < read_le32(&relocd->Size)) {
169 size_t rva_offset = read_le32(&relocb->VirtualAddress);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500170
171 printk(FSP_DBG_LVL, "Relocs for RVA offset %zx\n", rva_offset);
Aaron Durbin923b4d52015-09-30 16:48:26 -0500172 num_relocs = read_le32(&relocb->SizeOfBlock) - sizeof(*relocb);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500173 num_relocs /= sizeof(uint16_t);
174 reloc = relative_offset(relocb, sizeof(*relocb));
175
176 printk(FSP_DBG_LVL, "Num relocs in block: %zx\n", num_relocs);
177
178 while (num_relocs > 0) {
Aaron Durbin923b4d52015-09-30 16:48:26 -0500179 uint16_t reloc_val = read_le16(reloc);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500180 int type = reloc_type(reloc_val);
181 size_t offset = reloc_offset(reloc_val);
182
183 printk(FSP_DBG_LVL, "reloc type %x offset %zx\n",
184 type, offset);
185
186 if (type == EFI_IMAGE_REL_BASED_HIGHLOW) {
187 uint32_t *reloc_addr;
188 uint32_t val;
189
190 offset += rva_offset;
191 reloc_addr = (void *)&te_base[offset];
Aaron Durbin923b4d52015-09-30 16:48:26 -0500192 val = read_le32(reloc_addr);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500193
194 printk(FSP_DBG_LVL, "Adjusting %p %x -> %x\n",
195 reloc_addr, val, val + adj);
Aaron Durbin923b4d52015-09-30 16:48:26 -0500196 write_le32(reloc_addr, val + adj);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500197 } else if (type != EFI_IMAGE_REL_BASED_ABSOLUTE) {
198 printk(BIOS_ERR, "Unknown reloc type: %x\n",
199 type);
200 return -1;
201 }
202 num_relocs--;
203 reloc++;
204 }
205
206 /* Track consumption of relocation directory contents. */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500207 relocd_offset += read_le32(&relocb->SizeOfBlock);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500208 /* Get next relocation block to process. */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500209 relocb = relative_offset(relocb,
210 read_le32(&relocb->SizeOfBlock));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500211 }
212
213 return 0;
214}
215
216static size_t csh_size(const EFI_COMMON_SECTION_HEADER *csh)
217{
218 size_t size;
219
220 /* Unpack the array into a type that can be used. */
221 size = 0;
Aaron Durbin923b4d52015-09-30 16:48:26 -0500222 size |= read_le8(&csh->Size[0]) << 0;
223 size |= read_le8(&csh->Size[1]) << 8;
224 size |= read_le8(&csh->Size[2]) << 16;
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500225
226 return size;
227}
228
229static size_t section_data_offset(const EFI_COMMON_SECTION_HEADER *csh)
230{
231 if (csh_size(csh) == 0x00ffffff)
232 return sizeof(EFI_COMMON_SECTION_HEADER2);
233 else
234 return sizeof(EFI_COMMON_SECTION_HEADER);
235}
236
237static size_t section_data_size(const EFI_COMMON_SECTION_HEADER *csh)
238{
239 size_t section_size;
240
241 if (csh_size(csh) == 0x00ffffff)
Aaron Durbin923b4d52015-09-30 16:48:26 -0500242 section_size = read_le32(&SECTION2_SIZE(csh));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500243 else
244 section_size = csh_size(csh);
245
246 return section_size - section_data_offset(csh);
247}
248
249static size_t file_section_offset(const EFI_FFS_FILE_HEADER *ffsfh)
250{
251 if (IS_FFS_FILE2(ffsfh))
252 return sizeof(EFI_FFS_FILE_HEADER2);
253 else
254 return sizeof(EFI_FFS_FILE_HEADER);
255}
256
257static size_t ffs_file_size(const EFI_FFS_FILE_HEADER *ffsfh)
258{
259 size_t size;
260
261 if (IS_FFS_FILE2(ffsfh))
Aaron Durbin923b4d52015-09-30 16:48:26 -0500262 size = read_le32(&FFS_FILE2_SIZE(ffsfh));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500263 else {
Aaron Durbin923b4d52015-09-30 16:48:26 -0500264 size = read_le8(&ffsfh->Size[0]) << 0;
265 size |= read_le8(&ffsfh->Size[1]) << 8;
266 size |= read_le8(&ffsfh->Size[2]) << 16;
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500267 }
268 return size;
269}
270
271static int relocate_patch_table(void *fsp, size_t size, size_t offset,
272 ssize_t adjustment)
273{
274 struct fsp_patch_table *table;
275 size_t num;
276 size_t num_entries;
277
278 table = relative_offset(fsp, offset);
279
280 if ((offset + sizeof(*table) > size) ||
Aaron Durbin923b4d52015-09-30 16:48:26 -0500281 (read_le16(&table->header_length) + offset) > size) {
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500282 printk(BIOS_ERR, "FSPP not entirely contained in region.\n");
283 return -1;
284 }
285
Aaron Durbin923b4d52015-09-30 16:48:26 -0500286 num_entries = read_le32(&table->patch_entry_num);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500287 printk(FSP_DBG_LVL, "FSPP relocs: %zx\n", num_entries);
288
Aaron Durbin923b4d52015-09-30 16:48:26 -0500289 for (num = 0; num < num_entries; num++) {
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500290 uint32_t *reloc;
291 uint32_t reloc_val;
292
293 reloc = fspp_reloc(fsp, size,
Aaron Durbin923b4d52015-09-30 16:48:26 -0500294 read_le32(&table->patch_entries[num]));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500295
296 if (reloc == NULL) {
297 printk(BIOS_ERR, "Ignoring FSPP entry: %x\n",
Aaron Durbin923b4d52015-09-30 16:48:26 -0500298 read_le32(&table->patch_entries[num]));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500299 continue;
300 }
301
Aaron Durbin923b4d52015-09-30 16:48:26 -0500302 reloc_val = read_le32(reloc);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500303 printk(FSP_DBG_LVL, "Adjusting %p %x -> %x\n",
304 reloc, reloc_val,
305 (unsigned int)(reloc_val + adjustment));
306
Aaron Durbin923b4d52015-09-30 16:48:26 -0500307 write_le32(reloc, reloc_val + adjustment);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500308 }
309
310 return 0;
311}
312
313static ssize_t relocate_remaining_items(void *fsp, size_t size,
314 uintptr_t new_addr, size_t fih_offset)
315{
316 EFI_FFS_FILE_HEADER *ffsfh;
317 EFI_COMMON_SECTION_HEADER *csh;
318 FSP_INFO_HEADER *fih;
319 ssize_t adjustment;
320 size_t offset;
321
322 printk(FSP_DBG_LVL, "FSP_INFO_HEADER offset is %zx\n", fih_offset);
323
324 if (fih_offset == 0) {
325 printk(BIOS_ERR, "FSP_INFO_HEADER offset is 0.\n");
326 return -1;
327 }
328
329 /* FSP_INFO_HEADER at first file in FV within first RAW section. */
330 ffsfh = relative_offset(fsp, fih_offset);
331 fih_offset += file_section_offset(ffsfh);
332 csh = relative_offset(fsp, fih_offset);
333 fih_offset += section_data_offset(csh);
334 fih = relative_offset(fsp, fih_offset);
335
336 if (guid_compare(&ffsfh->Name, &fih_guid)) {
337 printk(BIOS_ERR, "Bad FIH GUID.\n");
338 return -1;
339 }
340
Aaron Durbin923b4d52015-09-30 16:48:26 -0500341 if (read_le8(&csh->Type) != EFI_SECTION_RAW) {
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500342 printk(BIOS_ERR, "FIH file should have raw section: %x\n",
Aaron Durbin923b4d52015-09-30 16:48:26 -0500343 read_le8(&csh->Type));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500344 return -1;
345 }
346
Aaron Durbin923b4d52015-09-30 16:48:26 -0500347 if (read_le32(&fih->Signature) != FSP_SIG) {
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500348 printk(BIOS_ERR, "Unexpected FIH signature: %08x\n",
Aaron Durbin923b4d52015-09-30 16:48:26 -0500349 read_le32(&fih->Signature));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500350 return -1;
351 }
352
Aaron Durbin923b4d52015-09-30 16:48:26 -0500353 adjustment = (intptr_t)new_addr - read_le32(&fih->ImageBase);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500354
355 /* Update ImageBase to reflect FSP's new home. */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500356 write_le32(&fih->ImageBase, adjustment + read_le32(&fih->ImageBase));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500357
358 /* Need to find patch table and adjust each entry. The tables
359 * following FSP_INFO_HEADER have a 32-bit signature and header
360 * length. The patch table is denoted as having a 'FSPP' signature;
361 * the table format doesn't follow the other tables. */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500362 offset = fih_offset + read_le32(&fih->HeaderLength);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500363 while (offset + 2 * sizeof(uint32_t) <= size) {
364 uint32_t *table_headers;
365
366 table_headers = relative_offset(fsp, offset);
367
368 printk(FSP_DBG_LVL, "Checking offset %zx for 'FSPP'\n",
369 offset);
370
Aaron Durbin923b4d52015-09-30 16:48:26 -0500371 if (read_le32(&table_headers[0]) != FSPP_SIG) {
372 offset += read_le32(&table_headers[1]);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500373 continue;
374 }
375
376 if (relocate_patch_table(fsp, size, offset, adjustment)) {
377 printk(BIOS_ERR, "FSPP relocation failed.\n");
378 return -1;
379 }
380
381 return fih_offset;
382 }
383
384 printk(BIOS_ERR, "Could not find the FSP patch table.\n");
385 return -1;
386}
387
388static ssize_t relocate_fvh(uintptr_t new_addr, void *fsp, size_t fsp_size,
389 size_t fvh_offset, size_t *fih_offset)
390{
391 EFI_FIRMWARE_VOLUME_HEADER *fvh;
392 EFI_FFS_FILE_HEADER *ffsfh;
393 EFI_COMMON_SECTION_HEADER *csh;
394 size_t offset;
395 size_t file_offset;
396 size_t size;
397 size_t fv_length;
398
399 offset = fvh_offset;
400 fvh = relative_offset(fsp, offset);
401
Aaron Durbin923b4d52015-09-30 16:48:26 -0500402 if (read_le32(&fvh->Signature) != EFI_FVH_SIGNATURE)
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500403 return -1;
404
Aaron Durbin923b4d52015-09-30 16:48:26 -0500405 fv_length = read_le64(&fvh->FvLength);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500406
407 printk(FSP_DBG_LVL, "FVH length: %zx Offset: %zx Mapping length: %zx\n",
408 fv_length, offset, fsp_size);
409
Aaron Durbin923b4d52015-09-30 16:48:26 -0500410 if (fv_length + offset > fsp_size)
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500411 return -1;
412
413 /* Parse only this FV. However, the algorithm uses offsets into the
414 * entire FSP region so make size include the starting offset. */
415 size = fv_length + offset;
416
417 if (guid_compare(&fvh->FileSystemGuid, &ffs2_guid)) {
418 printk(BIOS_ERR, "FVH not an FFS2 type.\n");
419 return -1;
420 }
421
Aaron Durbin923b4d52015-09-30 16:48:26 -0500422 if (read_le16(&fvh->ExtHeaderOffset) != 0) {
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500423 EFI_FIRMWARE_VOLUME_EXT_HEADER *fveh;
424
Aaron Durbin923b4d52015-09-30 16:48:26 -0500425 offset += read_le16(&fvh->ExtHeaderOffset);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500426 fveh = relative_offset(fsp, offset);
427 printk(FSP_DBG_LVL, "Extended Header Offset: %zx Size: %zx\n",
Aaron Durbin923b4d52015-09-30 16:48:26 -0500428 (size_t)read_le16(&fvh->ExtHeaderOffset),
429 (size_t)read_le32(&fveh->ExtHeaderSize));
430 offset += read_le32(&fveh->ExtHeaderSize);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500431 /* FFS files are 8 byte aligned after extended header. */
432 offset = ALIGN_UP(offset, 8);
433 } else {
Aaron Durbin923b4d52015-09-30 16:48:26 -0500434 offset += read_le16(&fvh->HeaderLength);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500435 }
436
437 file_offset = offset;
438 while (file_offset + sizeof(*ffsfh) < size) {
439 offset = file_offset;
440 printk(FSP_DBG_LVL, "file offset: %zx\n", file_offset);
441
442 /* First file and section should be FSP info header. */
443 if (fih_offset != NULL && *fih_offset == 0)
444 *fih_offset = file_offset;
445
446 ffsfh = relative_offset(fsp, file_offset);
447
Aaron Durbin923b4d52015-09-30 16:48:26 -0500448 printk(FSP_DBG_LVL, "file type = %x\n", read_le8(&ffsfh->Type));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500449 printk(FSP_DBG_LVL, "file attribs = %x\n",
Aaron Durbin923b4d52015-09-30 16:48:26 -0500450 read_le8(&ffsfh->Attributes));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500451
452 /* Exit FV relocation when empty space found */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500453 if (read_le8(&ffsfh->Type) == EFI_FV_FILETYPE_FFS_MAX)
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500454 break;
455
456 /* Next file on 8 byte alignment. */
457 file_offset += ffs_file_size(ffsfh);
458 file_offset = ALIGN_UP(file_offset, 8);
459
460 /* Padding files have no section information. */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500461 if (read_le8(&ffsfh->Type) == EFI_FV_FILETYPE_FFS_PAD)
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500462 continue;
463
464 offset += file_section_offset(ffsfh);
465
466 while (offset + sizeof(*csh) < file_offset) {
467 size_t data_size;
468 size_t data_offset;
469
470 csh = relative_offset(fsp, offset);
471
472 printk(FSP_DBG_LVL, "section offset: %zx\n", offset);
473 printk(FSP_DBG_LVL, "section type: %x\n",
Aaron Durbin923b4d52015-09-30 16:48:26 -0500474 read_le8(&csh->Type));
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500475
476 data_size = section_data_size(csh);
477 data_offset = section_data_offset(csh);
478
479 if (data_size + data_offset + offset > file_offset) {
480 printk(BIOS_ERR, "Section exceeds FV size.\n");
481 return -1;
482 }
483
484 /*
Furquan Shaikhb0c2fe02016-05-09 12:23:01 -0700485 * The entire FSP image can be thought of as one
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500486 * program with a single link address even though there
487 * are multiple TEs linked separately. The reason is
488 * that each TE is linked for XIP. So in order to
489 * relocate the TE properly we need to form the
490 * relocated address based on the TE offset within
491 * FSP proper.
492 */
Aaron Durbin923b4d52015-09-30 16:48:26 -0500493 if (read_le8(&csh->Type) == EFI_SECTION_TE) {
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500494 void *te;
495 size_t te_offset = offset + data_offset;
496 uintptr_t te_addr = new_addr + te_offset;
497
498 printk(FSP_DBG_LVL, "TE image at offset %zx\n",
499 te_offset);
500 te = relative_offset(fsp, te_offset);
Aaron Durbin923b4d52015-09-30 16:48:26 -0500501 te_relocate(te_addr, te);
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500502 }
503
504 offset += data_size + data_offset;
505 /* Sections are aligned to 4 bytes. */
506 offset = ALIGN_UP(offset, 4);
507 }
508 }
509
510 /* Return amount of buffer parsed: FV size. */
511 return fv_length;
512}
513
Furquan Shaikhb0c2fe02016-05-09 12:23:01 -0700514ssize_t fsp_component_relocate(uintptr_t new_addr, void *fsp, size_t size)
Aaron Durbina5be7fa2015-09-10 22:52:27 -0500515{
516 size_t offset;
517 size_t fih_offset;
518
519 offset = 0;
520 fih_offset = 0;
521 while (offset < size) {
522 ssize_t nparsed;
523
524 /* Relocate each FV within the FSP region. The FSP_INFO_HEADER
525 * should only be located in the first FV. */
526 if (offset == 0)
527 nparsed = relocate_fvh(new_addr, fsp, size, offset,
528 &fih_offset);
529 else
530 nparsed = relocate_fvh(new_addr, fsp, size, offset,
531 NULL);
532
533 /* FV should be larger than 0 or failed to parse. */
534 if (nparsed <= 0) {
535 printk(BIOS_ERR, "FV @ offset %zx relocation failed\n",
536 offset);
537 return -1;
538 }
539
540 offset += nparsed;
541 }
542
543 return relocate_remaining_items(fsp, size, new_addr, fih_offset);
544}
Furquan Shaikhb0c2fe02016-05-09 12:23:01 -0700545
546ssize_t fsp1_1_relocate(uintptr_t new_addr, void *fsp, size_t size)
547{
548 return fsp_component_relocate(new_addr, fsp, size);
549}