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1 /** @file
2 The firmware file related definitions in PI.
3
4 Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials are licensed and made available under
6 the terms and conditions of the BSD License that accompanies this distribution.
7 The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php.
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 @par Revision Reference:
14 PI Version 1.4.
15
16 **/
17
18
19 #ifndef __PI_FIRMWARE_FILE_H__
20 #define __PI_FIRMWARE_FILE_H__
21
22 #pragma pack(1)
23 ///
24 /// Used to verify the integrity of the file.
25 ///
26 typedef union {
27 struct {
28 ///
29 /// The IntegrityCheck.Checksum.Header field is an 8-bit checksum of the file
30 /// header. The State and IntegrityCheck.Checksum.File fields are assumed
31 /// to be zero and the checksum is calculated such that the entire header sums to zero.
32 ///
33 UINT8 Header;
34 ///
35 /// If the FFS_ATTRIB_CHECKSUM (see definition below) bit of the Attributes
36 /// field is set to one, the IntegrityCheck.Checksum.File field is an 8-bit
37 /// checksum of the file data.
38 /// If the FFS_ATTRIB_CHECKSUM bit of the Attributes field is cleared to zero,
39 /// the IntegrityCheck.Checksum.File field must be initialized with a value of
40 /// 0xAA. The IntegrityCheck.Checksum.File field is valid any time the
41 /// EFI_FILE_DATA_VALID bit is set in the State field.
42 ///
43 UINT8 File;
44 } Checksum;
45 ///
46 /// This is the full 16 bits of the IntegrityCheck field.
47 ///
48 UINT16 Checksum16;
49 } EFI_FFS_INTEGRITY_CHECK;
50
51 ///
52 /// FFS_FIXED_CHECKSUM is the checksum value used when the
53 /// FFS_ATTRIB_CHECKSUM attribute bit is clear.
54 ///
55 #define FFS_FIXED_CHECKSUM 0xAA
56
57 typedef UINT8 EFI_FV_FILETYPE;
58 typedef UINT8 EFI_FFS_FILE_ATTRIBUTES;
59 typedef UINT8 EFI_FFS_FILE_STATE;
60
61 ///
62 /// File Types Definitions
63 ///
64 #define EFI_FV_FILETYPE_ALL 0x00
65 #define EFI_FV_FILETYPE_RAW 0x01
66 #define EFI_FV_FILETYPE_FREEFORM 0x02
67 #define EFI_FV_FILETYPE_SECURITY_CORE 0x03
68 #define EFI_FV_FILETYPE_PEI_CORE 0x04
69 #define EFI_FV_FILETYPE_DXE_CORE 0x05
70 #define EFI_FV_FILETYPE_PEIM 0x06
71 #define EFI_FV_FILETYPE_DRIVER 0x07
72 #define EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER 0x08
73 #define EFI_FV_FILETYPE_APPLICATION 0x09
74 #define EFI_FV_FILETYPE_SMM 0x0A
75 #define EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE 0x0B
76 #define EFI_FV_FILETYPE_COMBINED_SMM_DXE 0x0C
77 #define EFI_FV_FILETYPE_SMM_CORE 0x0D
78 #define EFI_FV_FILETYPE_OEM_MIN 0xc0
79 #define EFI_FV_FILETYPE_OEM_MAX 0xdf
80 #define EFI_FV_FILETYPE_DEBUG_MIN 0xe0
81 #define EFI_FV_FILETYPE_DEBUG_MAX 0xef
82 #define EFI_FV_FILETYPE_FFS_MIN 0xf0
83 #define EFI_FV_FILETYPE_FFS_MAX 0xff
84 #define EFI_FV_FILETYPE_FFS_PAD 0xf0
85 ///
86 /// FFS File Attributes.
87 ///
88 #define FFS_ATTRIB_LARGE_FILE 0x01
89 #define FFS_ATTRIB_FIXED 0x04
90 #define FFS_ATTRIB_DATA_ALIGNMENT 0x38
91 #define FFS_ATTRIB_CHECKSUM 0x40
92
93 ///
94 /// FFS File State Bits.
95 ///
96 #define EFI_FILE_HEADER_CONSTRUCTION 0x01
97 #define EFI_FILE_HEADER_VALID 0x02
98 #define EFI_FILE_DATA_VALID 0x04
99 #define EFI_FILE_MARKED_FOR_UPDATE 0x08
100 #define EFI_FILE_DELETED 0x10
101 #define EFI_FILE_HEADER_INVALID 0x20
102
103
104 ///
105 /// Each file begins with the header that describe the
106 /// contents and state of the files.
107 ///
108 typedef struct {
109 ///
110 /// This GUID is the file name. It is used to uniquely identify the file.
111 ///
112 EFI_GUID Name;
113 ///
114 /// Used to verify the integrity of the file.
115 ///
116 EFI_FFS_INTEGRITY_CHECK IntegrityCheck;
117 ///
118 /// Identifies the type of file.
119 ///
120 EFI_FV_FILETYPE Type;
121 ///
122 /// Declares various file attribute bits.
123 ///
124 EFI_FFS_FILE_ATTRIBUTES Attributes;
125 ///
126 /// The length of the file in bytes, including the FFS header.
127 ///
128 UINT8 Size[3];
129 ///
130 /// Used to track the state of the file throughout the life of the file from creation to deletion.
131 ///
132 EFI_FFS_FILE_STATE State;
133 } EFI_FFS_FILE_HEADER;
134
135 typedef struct {
136 ///
137 /// This GUID is the file name. It is used to uniquely identify the file. There may be only
138 /// one instance of a file with the file name GUID of Name in any given firmware
139 /// volume, except if the file type is EFI_FV_FILETYPE_FFS_PAD.
140 ///
141 EFI_GUID Name;
142
143 ///
144 /// Used to verify the integrity of the file.
145 ///
146 EFI_FFS_INTEGRITY_CHECK IntegrityCheck;
147
148 ///
149 /// Identifies the type of file.
150 ///
151 EFI_FV_FILETYPE Type;
152
153 ///
154 /// Declares various file attribute bits.
155 ///
156 EFI_FFS_FILE_ATTRIBUTES Attributes;
157
158 ///
159 /// The length of the file in bytes, including the FFS header.
160 /// The length of the file data is either (Size - sizeof(EFI_FFS_FILE_HEADER)). This calculation means a
161 /// zero-length file has a Size of 24 bytes, which is sizeof(EFI_FFS_FILE_HEADER).
162 /// Size is not required to be a multiple of 8 bytes. Given a file F, the next file header is
163 /// located at the next 8-byte aligned firmware volume offset following the last byte of the file F.
164 ///
165 UINT8 Size[3];
166
167 ///
168 /// Used to track the state of the file throughout the life of the file from creation to deletion.
169 ///
170 EFI_FFS_FILE_STATE State;
171
172 ///
173 /// If FFS_ATTRIB_LARGE_FILE is set in Attributes, then ExtendedSize exists and Size must be set to zero.
174 /// If FFS_ATTRIB_LARGE_FILE is not set then EFI_FFS_FILE_HEADER is used.
175 ///
176 UINT64 ExtendedSize;
177 } EFI_FFS_FILE_HEADER2;
178
179 #define IS_FFS_FILE2(FfsFileHeaderPtr) \
180 (((((EFI_FFS_FILE_HEADER *) (UINTN) FfsFileHeaderPtr)->Attributes) & FFS_ATTRIB_LARGE_FILE) == FFS_ATTRIB_LARGE_FILE)
181
182 #define FFS_FILE_SIZE(FfsFileHeaderPtr) \
183 ((UINT32) (*((UINT32 *) ((EFI_FFS_FILE_HEADER *) (UINTN) FfsFileHeaderPtr)->Size) & 0x00ffffff))
184
185 #define FFS_FILE2_SIZE(FfsFileHeaderPtr) \
186 ((UINT32) (((EFI_FFS_FILE_HEADER2 *) (UINTN) FfsFileHeaderPtr)->ExtendedSize))
187
188 typedef UINT8 EFI_SECTION_TYPE;
189
190 ///
191 /// Pseudo type. It is used as a wild card when retrieving sections.
192 /// The section type EFI_SECTION_ALL matches all section types.
193 ///
194 #define EFI_SECTION_ALL 0x00
195
196 ///
197 /// Encapsulation section Type values.
198 ///
199 #define EFI_SECTION_COMPRESSION 0x01
200
201 #define EFI_SECTION_GUID_DEFINED 0x02
202
203 #define EFI_SECTION_DISPOSABLE 0x03
204
205 ///
206 /// Leaf section Type values.
207 ///
208 #define EFI_SECTION_PE32 0x10
209 #define EFI_SECTION_PIC 0x11
210 #define EFI_SECTION_TE 0x12
211 #define EFI_SECTION_DXE_DEPEX 0x13
212 #define EFI_SECTION_VERSION 0x14
213 #define EFI_SECTION_USER_INTERFACE 0x15
214 #define EFI_SECTION_COMPATIBILITY16 0x16
215 #define EFI_SECTION_FIRMWARE_VOLUME_IMAGE 0x17
216 #define EFI_SECTION_FREEFORM_SUBTYPE_GUID 0x18
217 #define EFI_SECTION_RAW 0x19
218 #define EFI_SECTION_PEI_DEPEX 0x1B
219 #define EFI_SECTION_SMM_DEPEX 0x1C
220
221 ///
222 /// Common section header.
223 ///
224 typedef struct {
225 ///
226 /// A 24-bit unsigned integer that contains the total size of the section in bytes,
227 /// including the EFI_COMMON_SECTION_HEADER.
228 ///
229 UINT8 Size[3];
230 EFI_SECTION_TYPE Type;
231 ///
232 /// Declares the section type.
233 ///
234 } EFI_COMMON_SECTION_HEADER;
235
236 typedef struct {
237 ///
238 /// A 24-bit unsigned integer that contains the total size of the section in bytes,
239 /// including the EFI_COMMON_SECTION_HEADER.
240 ///
241 UINT8 Size[3];
242
243 EFI_SECTION_TYPE Type;
244
245 ///
246 /// If Size is 0xFFFFFF, then ExtendedSize contains the size of the section. If
247 /// Size is not equal to 0xFFFFFF, then this field does not exist.
248 ///
249 UINT32 ExtendedSize;
250 } EFI_COMMON_SECTION_HEADER2;
251
252 ///
253 /// Leaf section type that contains an
254 /// IA-32 16-bit executable image.
255 ///
256 typedef EFI_COMMON_SECTION_HEADER EFI_COMPATIBILITY16_SECTION;
257 typedef EFI_COMMON_SECTION_HEADER2 EFI_COMPATIBILITY16_SECTION2;
258
259 ///
260 /// CompressionType of EFI_COMPRESSION_SECTION.
261 ///
262 #define EFI_NOT_COMPRESSED 0x00
263 #define EFI_STANDARD_COMPRESSION 0x01
264 ///
265 /// An encapsulation section type in which the
266 /// section data is compressed.
267 ///
268 typedef struct {
269 ///
270 /// Usual common section header. CommonHeader.Type = EFI_SECTION_COMPRESSION.
271 ///
272 EFI_COMMON_SECTION_HEADER CommonHeader;
273 ///
274 /// The UINT32 that indicates the size of the section data after decompression.
275 ///
276 UINT32 UncompressedLength;
277 ///
278 /// Indicates which compression algorithm is used.
279 ///
280 UINT8 CompressionType;
281 } EFI_COMPRESSION_SECTION;
282
283 typedef struct {
284 ///
285 /// Usual common section header. CommonHeader.Type = EFI_SECTION_COMPRESSION.
286 ///
287 EFI_COMMON_SECTION_HEADER2 CommonHeader;
288 ///
289 /// UINT32 that indicates the size of the section data after decompression.
290 ///
291 UINT32 UncompressedLength;
292 ///
293 /// Indicates which compression algorithm is used.
294 ///
295 UINT8 CompressionType;
296 } EFI_COMPRESSION_SECTION2;
297
298 ///
299 /// An encapsulation section type in which the section data is disposable.
300 /// A disposable section is an encapsulation section in which the section data may be disposed of during
301 /// the process of creating or updating a firmware image without significant impact on the usefulness of
302 /// the file. The Type field in the section header is set to EFI_SECTION_DISPOSABLE. This
303 /// allows optional or descriptive data to be included with the firmware file which can be removed in
304 /// order to conserve space. The contents of this section are implementation specific, but might contain
305 /// debug data or detailed integration instructions.
306 ///
307 typedef EFI_COMMON_SECTION_HEADER EFI_DISPOSABLE_SECTION;
308 typedef EFI_COMMON_SECTION_HEADER2 EFI_DISPOSABLE_SECTION2;
309
310 ///
311 /// The leaf section which could be used to determine the dispatch order of DXEs.
312 ///
313 typedef EFI_COMMON_SECTION_HEADER EFI_DXE_DEPEX_SECTION;
314 typedef EFI_COMMON_SECTION_HEADER2 EFI_DXE_DEPEX_SECTION2;
315
316 ///
317 /// The leaf section which contains a PI FV.
318 ///
319 typedef EFI_COMMON_SECTION_HEADER EFI_FIRMWARE_VOLUME_IMAGE_SECTION;
320 typedef EFI_COMMON_SECTION_HEADER2 EFI_FIRMWARE_VOLUME_IMAGE_SECTION2;
321
322 ///
323 /// The leaf section which contains a single GUID.
324 ///
325 typedef struct {
326 ///
327 /// Common section header. CommonHeader.Type = EFI_SECTION_FREEFORM_SUBTYPE_GUID.
328 ///
329 EFI_COMMON_SECTION_HEADER CommonHeader;
330 ///
331 /// This GUID is defined by the creator of the file. It is a vendor-defined file type.
332 ///
333 EFI_GUID SubTypeGuid;
334 } EFI_FREEFORM_SUBTYPE_GUID_SECTION;
335
336 typedef struct {
337 ///
338 /// The common section header. CommonHeader.Type = EFI_SECTION_FREEFORM_SUBTYPE_GUID.
339 ///
340 EFI_COMMON_SECTION_HEADER2 CommonHeader;
341 ///
342 /// This GUID is defined by the creator of the file. It is a vendor-defined file type.
343 ///
344 EFI_GUID SubTypeGuid;
345 } EFI_FREEFORM_SUBTYPE_GUID_SECTION2;
346
347 ///
348 /// Attributes of EFI_GUID_DEFINED_SECTION.
349 ///
350 #define EFI_GUIDED_SECTION_PROCESSING_REQUIRED 0x01
351 #define EFI_GUIDED_SECTION_AUTH_STATUS_VALID 0x02
352 ///
353 /// The leaf section which is encapsulation defined by specific GUID.
354 ///
355 typedef struct {
356 ///
357 /// The common section header. CommonHeader.Type = EFI_SECTION_GUID_DEFINED.
358 ///
359 EFI_COMMON_SECTION_HEADER CommonHeader;
360 ///
361 /// The GUID that defines the format of the data that follows. It is a vendor-defined section type.
362 ///
363 EFI_GUID SectionDefinitionGuid;
364 ///
365 /// Contains the offset in bytes from the beginning of the common header to the first byte of the data.
366 ///
367 UINT16 DataOffset;
368 ///
369 /// The bit field that declares some specific characteristics of the section contents.
370 ///
371 UINT16 Attributes;
372 } EFI_GUID_DEFINED_SECTION;
373
374 typedef struct {
375 ///
376 /// The common section header. CommonHeader.Type = EFI_SECTION_GUID_DEFINED.
377 ///
378 EFI_COMMON_SECTION_HEADER2 CommonHeader;
379 ///
380 /// The GUID that defines the format of the data that follows. It is a vendor-defined section type.
381 ///
382 EFI_GUID SectionDefinitionGuid;
383 ///
384 /// Contains the offset in bytes from the beginning of the common header to the first byte of the data.
385 ///
386 UINT16 DataOffset;
387 ///
388 /// The bit field that declares some specific characteristics of the section contents.
389 ///
390 UINT16 Attributes;
391 } EFI_GUID_DEFINED_SECTION2;
392
393 ///
394 /// The leaf section which contains PE32+ image.
395 ///
396 typedef EFI_COMMON_SECTION_HEADER EFI_PE32_SECTION;
397 typedef EFI_COMMON_SECTION_HEADER2 EFI_PE32_SECTION2;
398
399 ///
400 /// The leaf section used to determine the dispatch order of PEIMs.
401 ///
402 typedef EFI_COMMON_SECTION_HEADER EFI_PEI_DEPEX_SECTION;
403 typedef EFI_COMMON_SECTION_HEADER2 EFI_PEI_DEPEX_SECTION2;
404
405 ///
406 /// A leaf section type that contains a position-independent-code (PIC) image.
407 /// A PIC image section is a leaf section that contains a position-independent-code (PIC) image.
408 /// In addition to normal PE32+ images that contain relocation information, PEIM executables may be
409 /// PIC and are referred to as PIC images. A PIC image is the same as a PE32+ image except that all
410 /// relocation information has been stripped from the image and the image can be moved and will
411 /// execute correctly without performing any relocation or other fix-ups. EFI_PIC_SECTION2 must
412 /// be used if the section is 16MB or larger.
413 ///
414 typedef EFI_COMMON_SECTION_HEADER EFI_PIC_SECTION;
415 typedef EFI_COMMON_SECTION_HEADER2 EFI_PIC_SECTION2;
416
417 ///
418 /// The leaf section which constains the position-independent-code image.
419 ///
420 typedef EFI_COMMON_SECTION_HEADER EFI_TE_SECTION;
421 typedef EFI_COMMON_SECTION_HEADER2 EFI_TE_SECTION2;
422
423 ///
424 /// The leaf section which contains an array of zero or more bytes.
425 ///
426 typedef EFI_COMMON_SECTION_HEADER EFI_RAW_SECTION;
427 typedef EFI_COMMON_SECTION_HEADER2 EFI_RAW_SECTION2;
428
429 ///
430 /// The SMM dependency expression section is a leaf section that contains a dependency expression that
431 /// is used to determine the dispatch order for SMM drivers. Before the SMRAM invocation of the
432 /// SMM driver's entry point, this dependency expression must evaluate to TRUE. See the Platform
433 /// Initialization Specification, Volume 2, for details regarding the format of the dependency expression.
434 /// The dependency expression may refer to protocols installed in either the UEFI or the SMM protocol
435 /// database. EFI_SMM_DEPEX_SECTION2 must be used if the section is 16MB or larger.
436 ///
437 typedef EFI_COMMON_SECTION_HEADER EFI_SMM_DEPEX_SECTION;
438 typedef EFI_COMMON_SECTION_HEADER2 EFI_SMM_DEPEX_SECTION2;
439
440 ///
441 /// The leaf section which contains a unicode string that
442 /// is human readable file name.
443 ///
444 typedef struct {
445 EFI_COMMON_SECTION_HEADER CommonHeader;
446
447 ///
448 /// Array of unicode string.
449 ///
450 CHAR16 FileNameString[1];
451 } EFI_USER_INTERFACE_SECTION;
452
453 typedef struct {
454 EFI_COMMON_SECTION_HEADER2 CommonHeader;
455 CHAR16 FileNameString[1];
456 } EFI_USER_INTERFACE_SECTION2;
457
458 ///
459 /// The leaf section which contains a numeric build number and
460 /// an optional unicode string that represents the file revision.
461 ///
462 typedef struct {
463 EFI_COMMON_SECTION_HEADER CommonHeader;
464 UINT16 BuildNumber;
465
466 ///
467 /// Array of unicode string.
468 ///
469 CHAR16 VersionString[1];
470 } EFI_VERSION_SECTION;
471
472 typedef struct {
473 EFI_COMMON_SECTION_HEADER2 CommonHeader;
474 ///
475 /// A UINT16 that represents a particular build. Subsequent builds have monotonically
476 /// increasing build numbers relative to earlier builds.
477 ///
478 UINT16 BuildNumber;
479 CHAR16 VersionString[1];
480 } EFI_VERSION_SECTION2;
481
482 #define IS_SECTION2(SectionHeaderPtr) \
483 ((UINT32) (*((UINT32 *) ((EFI_COMMON_SECTION_HEADER *) (UINTN) SectionHeaderPtr)->Size) & 0x00ffffff) == 0x00ffffff)
484
485 #define SECTION_SIZE(SectionHeaderPtr) \
486 ((UINT32) (*((UINT32 *) ((EFI_COMMON_SECTION_HEADER *) (UINTN) SectionHeaderPtr)->Size) & 0x00ffffff))
487
488 #define SECTION2_SIZE(SectionHeaderPtr) \
489 (((EFI_COMMON_SECTION_HEADER2 *) (UINTN) SectionHeaderPtr)->ExtendedSize)
490
491 #pragma pack()
492
493 #endif
494