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MdePkg/BaseLib: Add safe string functions that convert str to value
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ac644614 1/** @file\r
50a64e5b 2 Provides string functions, linked list functions, math functions, synchronization\r
ae591c14 3 functions, file path functions, and CPU architecture-specific functions.\r
ac644614 4\r
b590e43a 5Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r
9df063a0
HT
6Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
7This program and the accompanying materials\r
50a64e5b 8are licensed and made available under the terms and conditions of the BSD License\r
9which accompanies this distribution. The full text of the license may be found at\r
af2dc6a7 10http://opensource.org/licenses/bsd-license.php.\r
ac644614 11\r
50a64e5b 12THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
13WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
ac644614 14\r
15**/\r
16\r
17#ifndef __BASE_LIB__\r
18#define __BASE_LIB__\r
19\r
1106ffe1 20//\r
1a2f870c 21// Definitions for architecture-specific types\r
1106ffe1 22//\r
ac644614 23#if defined (MDE_CPU_IA32)\r
fc30687f 24///\r
af2dc6a7 25/// The IA-32 architecture context buffer used by SetJump() and LongJump().\r
fc30687f 26///\r
ac644614 27typedef struct {\r
28 UINT32 Ebx;\r
29 UINT32 Esi;\r
30 UINT32 Edi;\r
31 UINT32 Ebp;\r
32 UINT32 Esp;\r
33 UINT32 Eip;\r
34} BASE_LIBRARY_JUMP_BUFFER;\r
35\r
36#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 4\r
37\r
aa4df547 38#endif // defined (MDE_CPU_IA32)\r
39\r
40#if defined (MDE_CPU_IPF)\r
ac644614 41\r
fc30687f 42///\r
af2dc6a7 43/// The Itanium architecture context buffer used by SetJump() and LongJump().\r
fc30687f 44///\r
ac644614 45typedef struct {\r
46 UINT64 F2[2];\r
47 UINT64 F3[2];\r
48 UINT64 F4[2];\r
49 UINT64 F5[2];\r
50 UINT64 F16[2];\r
51 UINT64 F17[2];\r
52 UINT64 F18[2];\r
53 UINT64 F19[2];\r
54 UINT64 F20[2];\r
55 UINT64 F21[2];\r
56 UINT64 F22[2];\r
57 UINT64 F23[2];\r
58 UINT64 F24[2];\r
59 UINT64 F25[2];\r
60 UINT64 F26[2];\r
61 UINT64 F27[2];\r
62 UINT64 F28[2];\r
63 UINT64 F29[2];\r
64 UINT64 F30[2];\r
65 UINT64 F31[2];\r
66 UINT64 R4;\r
67 UINT64 R5;\r
68 UINT64 R6;\r
69 UINT64 R7;\r
70 UINT64 SP;\r
71 UINT64 BR0;\r
72 UINT64 BR1;\r
73 UINT64 BR2;\r
74 UINT64 BR3;\r
75 UINT64 BR4;\r
76 UINT64 BR5;\r
77 UINT64 InitialUNAT;\r
78 UINT64 AfterSpillUNAT;\r
79 UINT64 PFS;\r
80 UINT64 BSP;\r
81 UINT64 Predicates;\r
82 UINT64 LoopCount;\r
83 UINT64 FPSR;\r
84} BASE_LIBRARY_JUMP_BUFFER;\r
85\r
86#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 0x10\r
87\r
aa4df547 88#endif // defined (MDE_CPU_IPF)\r
89\r
90#if defined (MDE_CPU_X64)\r
fc30687f 91///\r
af2dc6a7 92/// The x64 architecture context buffer used by SetJump() and LongJump().\r
fc30687f 93///\r
ac644614 94typedef struct {\r
95 UINT64 Rbx;\r
96 UINT64 Rsp;\r
97 UINT64 Rbp;\r
98 UINT64 Rdi;\r
99 UINT64 Rsi;\r
100 UINT64 R12;\r
101 UINT64 R13;\r
102 UINT64 R14;\r
103 UINT64 R15;\r
104 UINT64 Rip;\r
9b9641c6 105 UINT64 MxCsr;\r
af2dc6a7 106 UINT8 XmmBuffer[160]; ///< XMM6-XMM15.\r
ac644614 107} BASE_LIBRARY_JUMP_BUFFER;\r
108\r
109#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8\r
110\r
aa4df547 111#endif // defined (MDE_CPU_X64)\r
112\r
113#if defined (MDE_CPU_EBC)\r
fc30687f 114///\r
af2dc6a7 115/// The EBC context buffer used by SetJump() and LongJump().\r
fc30687f 116///\r
ac644614 117typedef struct {\r
118 UINT64 R0;\r
119 UINT64 R1;\r
120 UINT64 R2;\r
121 UINT64 R3;\r
122 UINT64 IP;\r
123} BASE_LIBRARY_JUMP_BUFFER;\r
124\r
125#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8\r
126\r
aa4df547 127#endif // defined (MDE_CPU_EBC)\r
ac644614 128\r
ebd04fc2 129#if defined (MDE_CPU_ARM)\r
130\r
131typedef struct {\r
af2dc6a7 132 UINT32 R3; ///< A copy of R13.\r
01a54966 133 UINT32 R4;\r
134 UINT32 R5;\r
135 UINT32 R6;\r
136 UINT32 R7;\r
137 UINT32 R8;\r
138 UINT32 R9;\r
139 UINT32 R10;\r
140 UINT32 R11;\r
141 UINT32 R12;\r
142 UINT32 R14;\r
ebd04fc2 143} BASE_LIBRARY_JUMP_BUFFER;\r
144\r
145#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 4\r
146\r
147#endif // defined (MDE_CPU_ARM)\r
148\r
807e2604
HL
149#if defined (MDE_CPU_AARCH64)\r
150typedef struct {\r
151 // GP regs\r
152 UINT64 X19;\r
153 UINT64 X20;\r
154 UINT64 X21;\r
155 UINT64 X22;\r
156 UINT64 X23;\r
157 UINT64 X24;\r
158 UINT64 X25;\r
159 UINT64 X26;\r
160 UINT64 X27;\r
161 UINT64 X28;\r
162 UINT64 FP;\r
163 UINT64 LR;\r
164 UINT64 IP0;\r
165\r
166 // FP regs\r
167 UINT64 D8;\r
168 UINT64 D9;\r
169 UINT64 D10;\r
170 UINT64 D11;\r
171 UINT64 D12;\r
172 UINT64 D13;\r
173 UINT64 D14;\r
174 UINT64 D15;\r
175} BASE_LIBRARY_JUMP_BUFFER;\r
176\r
177#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8\r
178\r
179#endif // defined (MDE_CPU_AARCH64)\r
180\r
181\r
ac644614 182//\r
183// String Services\r
184//\r
185\r
c058d59f
JY
186\r
187/**\r
188 Returns the length of a Null-terminated Unicode string.\r
189\r
328f84b1
JY
190 This function is similar as strlen_s defined in C11.\r
191\r
c058d59f
JY
192 If String is not aligned on a 16-bit boundary, then ASSERT().\r
193\r
194 @param String A pointer to a Null-terminated Unicode string.\r
195 @param MaxSize The maximum number of Destination Unicode\r
196 char, including terminating null char.\r
197\r
198 @retval 0 If String is NULL.\r
199 @retval MaxSize If there is no null character in the first MaxSize characters of String.\r
200 @return The number of characters that percede the terminating null character.\r
201\r
202**/\r
203UINTN\r
204EFIAPI\r
205StrnLenS (\r
206 IN CONST CHAR16 *String,\r
207 IN UINTN MaxSize\r
208 );\r
209\r
b590e43a
HW
210/**\r
211 Returns the size of a Null-terminated Unicode string in bytes, including the\r
212 Null terminator.\r
213\r
214 This function returns the size of the Null-terminated Unicode string\r
215 specified by String in bytes, including the Null terminator.\r
216\r
217 If String is not aligned on a 16-bit boundary, then ASSERT().\r
218\r
219 @param String A pointer to a Null-terminated Unicode string.\r
220 @param MaxSize The maximum number of Destination Unicode\r
221 char, including the Null terminator.\r
222\r
223 @retval 0 If String is NULL.\r
224 @retval (sizeof (CHAR16) * (MaxSize + 1))\r
225 If there is no Null terminator in the first MaxSize characters of\r
226 String.\r
227 @return The size of the Null-terminated Unicode string in bytes, including\r
228 the Null terminator.\r
229\r
230**/\r
231UINTN\r
232EFIAPI\r
233StrnSizeS (\r
234 IN CONST CHAR16 *String,\r
235 IN UINTN MaxSize\r
236 );\r
237\r
c058d59f
JY
238/**\r
239 Copies the string pointed to by Source (including the terminating null char)\r
240 to the array pointed to by Destination.\r
241\r
328f84b1
JY
242 This function is similar as strcpy_s defined in C11.\r
243\r
c058d59f
JY
244 If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
245 If Source is not aligned on a 16-bit boundary, then ASSERT().\r
0e93edbb 246 If an error would be returned, then the function will also ASSERT().\r
c058d59f 247\r
328f84b1
JY
248 If an error is returned, then the Destination is unmodified.\r
249\r
c058d59f
JY
250 @param Destination A pointer to a Null-terminated Unicode string.\r
251 @param DestMax The maximum number of Destination Unicode\r
252 char, including terminating null char.\r
253 @param Source A pointer to a Null-terminated Unicode string.\r
254\r
255 @retval RETURN_SUCCESS String is copied.\r
256 @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r
257 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
258 If Source is NULL.\r
259 If PcdMaximumUnicodeStringLength is not zero,\r
260 and DestMax is greater than \r
261 PcdMaximumUnicodeStringLength.\r
262 If DestMax is 0.\r
263 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
264**/\r
265RETURN_STATUS\r
266EFIAPI\r
267StrCpyS (\r
268 OUT CHAR16 *Destination,\r
269 IN UINTN DestMax,\r
270 IN CONST CHAR16 *Source\r
271 );\r
272\r
273/**\r
274 Copies not more than Length successive char from the string pointed to by\r
275 Source to the array pointed to by Destination. If no null char is copied from\r
276 Source, then Destination[Length] is always set to null.\r
277\r
328f84b1
JY
278 This function is similar as strncpy_s defined in C11.\r
279\r
c058d59f
JY
280 If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r
281 If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r
0e93edbb 282 If an error would be returned, then the function will also ASSERT().\r
c058d59f 283\r
328f84b1
JY
284 If an error is returned, then the Destination is unmodified.\r
285\r
c058d59f
JY
286 @param Destination A pointer to a Null-terminated Unicode string.\r
287 @param DestMax The maximum number of Destination Unicode\r
288 char, including terminating null char.\r
289 @param Source A pointer to a Null-terminated Unicode string.\r
290 @param Length The maximum number of Unicode characters to copy.\r
291\r
292 @retval RETURN_SUCCESS String is copied.\r
293 @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than \r
294 MIN(StrLen(Source), Length).\r
295 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
296 If Source is NULL.\r
297 If PcdMaximumUnicodeStringLength is not zero,\r
298 and DestMax is greater than \r
299 PcdMaximumUnicodeStringLength.\r
300 If DestMax is 0.\r
301 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
302**/\r
303RETURN_STATUS\r
304EFIAPI\r
305StrnCpyS (\r
306 OUT CHAR16 *Destination,\r
307 IN UINTN DestMax,\r
308 IN CONST CHAR16 *Source,\r
309 IN UINTN Length\r
310 );\r
311\r
312/**\r
313 Appends a copy of the string pointed to by Source (including the terminating\r
314 null char) to the end of the string pointed to by Destination.\r
315\r
328f84b1
JY
316 This function is similar as strcat_s defined in C11.\r
317\r
c058d59f
JY
318 If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
319 If Source is not aligned on a 16-bit boundary, then ASSERT().\r
0e93edbb 320 If an error would be returned, then the function will also ASSERT().\r
c058d59f 321\r
328f84b1
JY
322 If an error is returned, then the Destination is unmodified.\r
323\r
c058d59f
JY
324 @param Destination A pointer to a Null-terminated Unicode string.\r
325 @param DestMax The maximum number of Destination Unicode\r
326 char, including terminating null char.\r
327 @param Source A pointer to a Null-terminated Unicode string.\r
328\r
329 @retval RETURN_SUCCESS String is appended.\r
330 @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than \r
331 StrLen(Destination).\r
332 @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r
333 greater than StrLen(Source).\r
334 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
335 If Source is NULL.\r
336 If PcdMaximumUnicodeStringLength is not zero,\r
337 and DestMax is greater than \r
338 PcdMaximumUnicodeStringLength.\r
339 If DestMax is 0.\r
340 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
341**/\r
342RETURN_STATUS\r
343EFIAPI\r
344StrCatS (\r
345 IN OUT CHAR16 *Destination,\r
346 IN UINTN DestMax,\r
347 IN CONST CHAR16 *Source\r
348 );\r
349\r
350/**\r
351 Appends not more than Length successive char from the string pointed to by\r
352 Source to the end of the string pointed to by Destination. If no null char is\r
353 copied from Source, then Destination[StrLen(Destination) + Length] is always\r
354 set to null.\r
355\r
328f84b1
JY
356 This function is similar as strncat_s defined in C11.\r
357\r
c058d59f 358 If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
0e93edbb
JY
359 If Source is not aligned on a 16-bit boundary, then ASSERT().\r
360 If an error would be returned, then the function will also ASSERT().\r
c058d59f 361\r
328f84b1
JY
362 If an error is returned, then the Destination is unmodified.\r
363\r
c058d59f
JY
364 @param Destination A pointer to a Null-terminated Unicode string.\r
365 @param DestMax The maximum number of Destination Unicode\r
366 char, including terminating null char.\r
367 @param Source A pointer to a Null-terminated Unicode string.\r
368 @param Length The maximum number of Unicode characters to copy.\r
369\r
370 @retval RETURN_SUCCESS String is appended.\r
371 @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r
372 StrLen(Destination).\r
373 @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r
374 greater than MIN(StrLen(Source), Length).\r
375 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
376 If Source is NULL.\r
377 If PcdMaximumUnicodeStringLength is not zero,\r
378 and DestMax is greater than \r
379 PcdMaximumUnicodeStringLength.\r
380 If DestMax is 0.\r
381 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
382**/\r
383RETURN_STATUS\r
384EFIAPI\r
385StrnCatS (\r
386 IN OUT CHAR16 *Destination,\r
387 IN UINTN DestMax,\r
388 IN CONST CHAR16 *Source,\r
389 IN UINTN Length\r
390 );\r
391\r
d8af3301
HW
392/**\r
393 Convert a Null-terminated Unicode decimal string to a value of type UINTN.\r
394\r
395 This function outputs a value of type UINTN by interpreting the contents of\r
396 the Unicode string specified by String as a decimal number. The format of the\r
397 input Unicode string String is:\r
398\r
399 [spaces] [decimal digits].\r
400\r
401 The valid decimal digit character is in the range [0-9]. The function will\r
402 ignore the pad space, which includes spaces or tab characters, before\r
403 [decimal digits]. The running zero in the beginning of [decimal digits] will\r
404 be ignored. Then, the function stops at the first character that is a not a\r
405 valid decimal character or a Null-terminator, whichever one comes first.\r
406\r
407 If String is NULL, then ASSERT().\r
408 If Data is NULL, then ASSERT().\r
409 If String is not aligned in a 16-bit boundary, then ASSERT().\r
410 If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
411 PcdMaximumUnicodeStringLength Unicode characters, not including the\r
412 Null-terminator, then ASSERT().\r
413\r
414 If String has no valid decimal digits in the above format, then 0 is stored\r
415 at the location pointed to by Data.\r
416 If the number represented by String exceeds the range defined by UINTN, then\r
417 MAX_UINTN is stored at the location pointed to by Data.\r
418\r
419 If EndPointer is not NULL, a pointer to the character that stopped the scan\r
420 is stored at the location pointed to by EndPointer. If String has no valid\r
421 decimal digits right after the optional pad spaces, the value of String is\r
422 stored at the location pointed to by EndPointer.\r
423\r
424 @param String Pointer to a Null-terminated Unicode string.\r
425 @param EndPointer Pointer to character that stops scan.\r
426 @param Data Pointer to the converted value.\r
427\r
428 @retval RETURN_SUCCESS Value is translated from String.\r
429 @retval RETURN_INVALID_PARAMETER If String is NULL.\r
430 If Data is NULL.\r
431 If PcdMaximumUnicodeStringLength is not\r
432 zero, and String contains more than\r
433 PcdMaximumUnicodeStringLength Unicode\r
434 characters, not including the\r
435 Null-terminator.\r
436 @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
437 the range defined by UINTN.\r
438\r
439**/\r
440RETURN_STATUS\r
441EFIAPI\r
442StrDecimalToUintnS (\r
443 IN CONST CHAR16 *String,\r
444 OUT CHAR16 **EndPointer, OPTIONAL\r
445 OUT UINTN *Data\r
446 );\r
447\r
448/**\r
449 Convert a Null-terminated Unicode decimal string to a value of type UINT64.\r
450\r
451 This function outputs a value of type UINT64 by interpreting the contents of\r
452 the Unicode string specified by String as a decimal number. The format of the\r
453 input Unicode string String is:\r
454\r
455 [spaces] [decimal digits].\r
456\r
457 The valid decimal digit character is in the range [0-9]. The function will\r
458 ignore the pad space, which includes spaces or tab characters, before\r
459 [decimal digits]. The running zero in the beginning of [decimal digits] will\r
460 be ignored. Then, the function stops at the first character that is a not a\r
461 valid decimal character or a Null-terminator, whichever one comes first.\r
462\r
463 If String is NULL, then ASSERT().\r
464 If Data is NULL, then ASSERT().\r
465 If String is not aligned in a 16-bit boundary, then ASSERT().\r
466 If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
467 PcdMaximumUnicodeStringLength Unicode characters, not including the\r
468 Null-terminator, then ASSERT().\r
469\r
470 If String has no valid decimal digits in the above format, then 0 is stored\r
471 at the location pointed to by Data.\r
472 If the number represented by String exceeds the range defined by UINT64, then\r
473 MAX_UINT64 is stored at the location pointed to by Data.\r
474\r
475 If EndPointer is not NULL, a pointer to the character that stopped the scan\r
476 is stored at the location pointed to by EndPointer. If String has no valid\r
477 decimal digits right after the optional pad spaces, the value of String is\r
478 stored at the location pointed to by EndPointer.\r
479\r
480 @param String Pointer to a Null-terminated Unicode string.\r
481 @param EndPointer Pointer to character that stops scan.\r
482 @param Data Pointer to the converted value.\r
483\r
484 @retval RETURN_SUCCESS Value is translated from String.\r
485 @retval RETURN_INVALID_PARAMETER If String is NULL.\r
486 If Data is NULL.\r
487 If PcdMaximumUnicodeStringLength is not\r
488 zero, and String contains more than\r
489 PcdMaximumUnicodeStringLength Unicode\r
490 characters, not including the\r
491 Null-terminator.\r
492 @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
493 the range defined by UINT64.\r
494\r
495**/\r
496RETURN_STATUS\r
497EFIAPI\r
498StrDecimalToUint64S (\r
499 IN CONST CHAR16 *String,\r
500 OUT CHAR16 **EndPointer, OPTIONAL\r
501 OUT UINT64 *Data\r
502 );\r
503\r
504/**\r
505 Convert a Null-terminated Unicode hexadecimal string to a value of type\r
506 UINTN.\r
507\r
508 This function outputs a value of type UINTN by interpreting the contents of\r
509 the Unicode string specified by String as a hexadecimal number. The format of\r
510 the input Unicode string String is:\r
511\r
512 [spaces][zeros][x][hexadecimal digits].\r
513\r
514 The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
515 The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
516 If "x" appears in the input string, it must be prefixed with at least one 0.\r
517 The function will ignore the pad space, which includes spaces or tab\r
518 characters, before [zeros], [x] or [hexadecimal digit]. The running zero\r
519 before [x] or [hexadecimal digit] will be ignored. Then, the decoding starts\r
520 after [x] or the first valid hexadecimal digit. Then, the function stops at\r
521 the first character that is a not a valid hexadecimal character or NULL,\r
522 whichever one comes first.\r
523\r
524 If String is NULL, then ASSERT().\r
525 If Data is NULL, then ASSERT().\r
526 If String is not aligned in a 16-bit boundary, then ASSERT().\r
527 If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
528 PcdMaximumUnicodeStringLength Unicode characters, not including the\r
529 Null-terminator, then ASSERT().\r
530\r
531 If String has no valid hexadecimal digits in the above format, then 0 is\r
532 stored at the location pointed to by Data.\r
533 If the number represented by String exceeds the range defined by UINTN, then\r
534 MAX_UINTN is stored at the location pointed to by Data.\r
535\r
536 If EndPointer is not NULL, a pointer to the character that stopped the scan\r
537 is stored at the location pointed to by EndPointer. If String has no valid\r
538 hexadecimal digits right after the optional pad spaces, the value of String\r
539 is stored at the location pointed to by EndPointer.\r
540\r
541 @param String Pointer to a Null-terminated Unicode string.\r
542 @param EndPointer Pointer to character that stops scan.\r
543 @param Data Pointer to the converted value.\r
544\r
545 @retval RETURN_SUCCESS Value is translated from String.\r
546 @retval RETURN_INVALID_PARAMETER If String is NULL.\r
547 If Data is NULL.\r
548 If PcdMaximumUnicodeStringLength is not\r
549 zero, and String contains more than\r
550 PcdMaximumUnicodeStringLength Unicode\r
551 characters, not including the\r
552 Null-terminator.\r
553 @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
554 the range defined by UINTN.\r
555\r
556**/\r
557RETURN_STATUS\r
558EFIAPI\r
559StrHexToUintnS (\r
560 IN CONST CHAR16 *String,\r
561 OUT CHAR16 **EndPointer, OPTIONAL\r
562 OUT UINTN *Data\r
563 );\r
564\r
565/**\r
566 Convert a Null-terminated Unicode hexadecimal string to a value of type\r
567 UINT64.\r
568\r
569 This function outputs a value of type UINT64 by interpreting the contents of\r
570 the Unicode string specified by String as a hexadecimal number. The format of\r
571 the input Unicode string String is:\r
572\r
573 [spaces][zeros][x][hexadecimal digits].\r
574\r
575 The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
576 The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
577 If "x" appears in the input string, it must be prefixed with at least one 0.\r
578 The function will ignore the pad space, which includes spaces or tab\r
579 characters, before [zeros], [x] or [hexadecimal digit]. The running zero\r
580 before [x] or [hexadecimal digit] will be ignored. Then, the decoding starts\r
581 after [x] or the first valid hexadecimal digit. Then, the function stops at\r
582 the first character that is a not a valid hexadecimal character or NULL,\r
583 whichever one comes first.\r
584\r
585 If String is NULL, then ASSERT().\r
586 If Data is NULL, then ASSERT().\r
587 If String is not aligned in a 16-bit boundary, then ASSERT().\r
588 If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
589 PcdMaximumUnicodeStringLength Unicode characters, not including the\r
590 Null-terminator, then ASSERT().\r
591\r
592 If String has no valid hexadecimal digits in the above format, then 0 is\r
593 stored at the location pointed to by Data.\r
594 If the number represented by String exceeds the range defined by UINT64, then\r
595 MAX_UINT64 is stored at the location pointed to by Data.\r
596\r
597 If EndPointer is not NULL, a pointer to the character that stopped the scan\r
598 is stored at the location pointed to by EndPointer. If String has no valid\r
599 hexadecimal digits right after the optional pad spaces, the value of String\r
600 is stored at the location pointed to by EndPointer.\r
601\r
602 @param String Pointer to a Null-terminated Unicode string.\r
603 @param EndPointer Pointer to character that stops scan.\r
604 @param Data Pointer to the converted value.\r
605\r
606 @retval RETURN_SUCCESS Value is translated from String.\r
607 @retval RETURN_INVALID_PARAMETER If String is NULL.\r
608 If Data is NULL.\r
609 If PcdMaximumUnicodeStringLength is not\r
610 zero, and String contains more than\r
611 PcdMaximumUnicodeStringLength Unicode\r
612 characters, not including the\r
613 Null-terminator.\r
614 @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
615 the range defined by UINT64.\r
616\r
617**/\r
618RETURN_STATUS\r
619EFIAPI\r
620StrHexToUint64S (\r
621 IN CONST CHAR16 *String,\r
622 OUT CHAR16 **EndPointer, OPTIONAL\r
623 OUT UINT64 *Data\r
624 );\r
625\r
c058d59f
JY
626/**\r
627 Returns the length of a Null-terminated Ascii string.\r
628\r
328f84b1
JY
629 This function is similar as strlen_s defined in C11.\r
630\r
c058d59f
JY
631 @param String A pointer to a Null-terminated Ascii string.\r
632 @param MaxSize The maximum number of Destination Ascii\r
633 char, including terminating null char.\r
634\r
635 @retval 0 If String is NULL.\r
636 @retval MaxSize If there is no null character in the first MaxSize characters of String.\r
637 @return The number of characters that percede the terminating null character.\r
638\r
639**/\r
640UINTN\r
641EFIAPI\r
642AsciiStrnLenS (\r
643 IN CONST CHAR8 *String,\r
644 IN UINTN MaxSize\r
645 );\r
646\r
b590e43a
HW
647/**\r
648 Returns the size of a Null-terminated Ascii string in bytes, including the\r
649 Null terminator.\r
650\r
651 This function returns the size of the Null-terminated Ascii string specified\r
652 by String in bytes, including the Null terminator.\r
653\r
654 @param String A pointer to a Null-terminated Ascii string.\r
655 @param MaxSize The maximum number of Destination Ascii\r
656 char, including the Null terminator.\r
657\r
658 @retval 0 If String is NULL.\r
659 @retval (sizeof (CHAR8) * (MaxSize + 1))\r
660 If there is no Null terminator in the first MaxSize characters of\r
661 String.\r
662 @return The size of the Null-terminated Ascii string in bytes, including the\r
663 Null terminator.\r
664\r
665**/\r
666UINTN\r
667EFIAPI\r
668AsciiStrnSizeS (\r
669 IN CONST CHAR8 *String,\r
670 IN UINTN MaxSize\r
671 );\r
672\r
c058d59f
JY
673/**\r
674 Copies the string pointed to by Source (including the terminating null char)\r
675 to the array pointed to by Destination.\r
676\r
328f84b1
JY
677 This function is similar as strcpy_s defined in C11.\r
678\r
0e93edbb
JY
679 If an error would be returned, then the function will also ASSERT().\r
680\r
328f84b1
JY
681 If an error is returned, then the Destination is unmodified.\r
682\r
c058d59f
JY
683 @param Destination A pointer to a Null-terminated Ascii string.\r
684 @param DestMax The maximum number of Destination Ascii\r
685 char, including terminating null char.\r
686 @param Source A pointer to a Null-terminated Ascii string.\r
687\r
688 @retval RETURN_SUCCESS String is copied.\r
689 @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r
690 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
691 If Source is NULL.\r
692 If PcdMaximumAsciiStringLength is not zero,\r
693 and DestMax is greater than \r
694 PcdMaximumAsciiStringLength.\r
695 If DestMax is 0.\r
696 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
697**/\r
698RETURN_STATUS\r
699EFIAPI\r
700AsciiStrCpyS (\r
701 OUT CHAR8 *Destination,\r
702 IN UINTN DestMax,\r
703 IN CONST CHAR8 *Source\r
704 );\r
705\r
706/**\r
707 Copies not more than Length successive char from the string pointed to by\r
708 Source to the array pointed to by Destination. If no null char is copied from\r
709 Source, then Destination[Length] is always set to null.\r
710\r
328f84b1
JY
711 This function is similar as strncpy_s defined in C11.\r
712\r
0e93edbb
JY
713 If an error would be returned, then the function will also ASSERT().\r
714\r
328f84b1
JY
715 If an error is returned, then the Destination is unmodified.\r
716\r
c058d59f
JY
717 @param Destination A pointer to a Null-terminated Ascii string.\r
718 @param DestMax The maximum number of Destination Ascii\r
719 char, including terminating null char.\r
720 @param Source A pointer to a Null-terminated Ascii string.\r
721 @param Length The maximum number of Ascii characters to copy.\r
722\r
723 @retval RETURN_SUCCESS String is copied.\r
724 @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than \r
725 MIN(StrLen(Source), Length).\r
726 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
727 If Source is NULL.\r
728 If PcdMaximumAsciiStringLength is not zero,\r
729 and DestMax is greater than \r
730 PcdMaximumAsciiStringLength.\r
731 If DestMax is 0.\r
732 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
733**/\r
734RETURN_STATUS\r
735EFIAPI\r
736AsciiStrnCpyS (\r
737 OUT CHAR8 *Destination,\r
738 IN UINTN DestMax,\r
739 IN CONST CHAR8 *Source,\r
740 IN UINTN Length\r
741 );\r
742\r
743/**\r
744 Appends a copy of the string pointed to by Source (including the terminating\r
745 null char) to the end of the string pointed to by Destination.\r
746\r
328f84b1
JY
747 This function is similar as strcat_s defined in C11.\r
748\r
0e93edbb
JY
749 If an error would be returned, then the function will also ASSERT().\r
750\r
328f84b1
JY
751 If an error is returned, then the Destination is unmodified.\r
752\r
c058d59f
JY
753 @param Destination A pointer to a Null-terminated Ascii string.\r
754 @param DestMax The maximum number of Destination Ascii\r
755 char, including terminating null char.\r
756 @param Source A pointer to a Null-terminated Ascii string.\r
757\r
758 @retval RETURN_SUCCESS String is appended.\r
759 @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than \r
760 StrLen(Destination).\r
761 @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r
762 greater than StrLen(Source).\r
763 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
764 If Source is NULL.\r
765 If PcdMaximumAsciiStringLength is not zero,\r
766 and DestMax is greater than \r
767 PcdMaximumAsciiStringLength.\r
768 If DestMax is 0.\r
769 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
770**/\r
771RETURN_STATUS\r
772EFIAPI\r
773AsciiStrCatS (\r
774 IN OUT CHAR8 *Destination,\r
775 IN UINTN DestMax,\r
776 IN CONST CHAR8 *Source\r
777 );\r
778\r
779/**\r
780 Appends not more than Length successive char from the string pointed to by\r
781 Source to the end of the string pointed to by Destination. If no null char is\r
782 copied from Source, then Destination[StrLen(Destination) + Length] is always\r
783 set to null.\r
784\r
328f84b1
JY
785 This function is similar as strncat_s defined in C11.\r
786\r
0e93edbb
JY
787 If an error would be returned, then the function will also ASSERT().\r
788\r
328f84b1
JY
789 If an error is returned, then the Destination is unmodified.\r
790\r
c058d59f
JY
791 @param Destination A pointer to a Null-terminated Ascii string.\r
792 @param DestMax The maximum number of Destination Ascii\r
793 char, including terminating null char.\r
794 @param Source A pointer to a Null-terminated Ascii string.\r
795 @param Length The maximum number of Ascii characters to copy.\r
796\r
797 @retval RETURN_SUCCESS String is appended.\r
798 @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r
799 StrLen(Destination).\r
800 @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r
801 greater than MIN(StrLen(Source), Length).\r
802 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
803 If Source is NULL.\r
804 If PcdMaximumAsciiStringLength is not zero,\r
805 and DestMax is greater than \r
806 PcdMaximumAsciiStringLength.\r
807 If DestMax is 0.\r
808 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
809**/\r
810RETURN_STATUS\r
811EFIAPI\r
812AsciiStrnCatS (\r
813 IN OUT CHAR8 *Destination,\r
814 IN UINTN DestMax,\r
815 IN CONST CHAR8 *Source,\r
816 IN UINTN Length\r
817 );\r
818\r
d8af3301
HW
819/**\r
820 Convert a Null-terminated Ascii decimal string to a value of type UINTN.\r
821\r
822 This function outputs a value of type UINTN by interpreting the contents of\r
823 the Ascii string specified by String as a decimal number. The format of the\r
824 input Ascii string String is:\r
825\r
826 [spaces] [decimal digits].\r
827\r
828 The valid decimal digit character is in the range [0-9]. The function will\r
829 ignore the pad space, which includes spaces or tab characters, before\r
830 [decimal digits]. The running zero in the beginning of [decimal digits] will\r
831 be ignored. Then, the function stops at the first character that is a not a\r
832 valid decimal character or a Null-terminator, whichever one comes first.\r
833\r
834 If String is NULL, then ASSERT().\r
835 If Data is NULL, then ASSERT().\r
836 If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
837 PcdMaximumAsciiStringLength Ascii characters, not including the\r
838 Null-terminator, then ASSERT().\r
839\r
840 If String has no valid decimal digits in the above format, then 0 is stored\r
841 at the location pointed to by Data.\r
842 If the number represented by String exceeds the range defined by UINTN, then\r
843 MAX_UINTN is stored at the location pointed to by Data.\r
844\r
845 If EndPointer is not NULL, a pointer to the character that stopped the scan\r
846 is stored at the location pointed to by EndPointer. If String has no valid\r
847 decimal digits right after the optional pad spaces, the value of String is\r
848 stored at the location pointed to by EndPointer.\r
849\r
850 @param String Pointer to a Null-terminated Ascii string.\r
851 @param EndPointer Pointer to character that stops scan.\r
852 @param Data Pointer to the converted value.\r
853\r
854 @retval RETURN_SUCCESS Value is translated from String.\r
855 @retval RETURN_INVALID_PARAMETER If String is NULL.\r
856 If Data is NULL.\r
857 If PcdMaximumAsciiStringLength is not zero,\r
858 and String contains more than\r
859 PcdMaximumAsciiStringLength Ascii\r
860 characters, not including the\r
861 Null-terminator.\r
862 @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
863 the range defined by UINTN.\r
864\r
865**/\r
866RETURN_STATUS\r
867EFIAPI\r
868AsciiStrDecimalToUintnS (\r
869 IN CONST CHAR8 *String,\r
870 OUT CHAR8 **EndPointer, OPTIONAL\r
871 OUT UINTN *Data\r
872 );\r
873\r
874/**\r
875 Convert a Null-terminated Ascii decimal string to a value of type UINT64.\r
876\r
877 This function outputs a value of type UINT64 by interpreting the contents of\r
878 the Ascii string specified by String as a decimal number. The format of the\r
879 input Ascii string String is:\r
880\r
881 [spaces] [decimal digits].\r
882\r
883 The valid decimal digit character is in the range [0-9]. The function will\r
884 ignore the pad space, which includes spaces or tab characters, before\r
885 [decimal digits]. The running zero in the beginning of [decimal digits] will\r
886 be ignored. Then, the function stops at the first character that is a not a\r
887 valid decimal character or a Null-terminator, whichever one comes first.\r
888\r
889 If String is NULL, then ASSERT().\r
890 If Data is NULL, then ASSERT().\r
891 If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
892 PcdMaximumAsciiStringLength Ascii characters, not including the\r
893 Null-terminator, then ASSERT().\r
894\r
895 If String has no valid decimal digits in the above format, then 0 is stored\r
896 at the location pointed to by Data.\r
897 If the number represented by String exceeds the range defined by UINT64, then\r
898 MAX_UINT64 is stored at the location pointed to by Data.\r
899\r
900 If EndPointer is not NULL, a pointer to the character that stopped the scan\r
901 is stored at the location pointed to by EndPointer. If String has no valid\r
902 decimal digits right after the optional pad spaces, the value of String is\r
903 stored at the location pointed to by EndPointer.\r
904\r
905 @param String Pointer to a Null-terminated Ascii string.\r
906 @param EndPointer Pointer to character that stops scan.\r
907 @param Data Pointer to the converted value.\r
908\r
909 @retval RETURN_SUCCESS Value is translated from String.\r
910 @retval RETURN_INVALID_PARAMETER If String is NULL.\r
911 If Data is NULL.\r
912 If PcdMaximumAsciiStringLength is not zero,\r
913 and String contains more than\r
914 PcdMaximumAsciiStringLength Ascii\r
915 characters, not including the\r
916 Null-terminator.\r
917 @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
918 the range defined by UINT64.\r
919\r
920**/\r
921RETURN_STATUS\r
922EFIAPI\r
923AsciiStrDecimalToUint64S (\r
924 IN CONST CHAR8 *String,\r
925 OUT CHAR8 **EndPointer, OPTIONAL\r
926 OUT UINT64 *Data\r
927 );\r
928\r
929/**\r
930 Convert a Null-terminated Ascii hexadecimal string to a value of type UINTN.\r
931\r
932 This function outputs a value of type UINTN by interpreting the contents of\r
933 the Ascii string specified by String as a hexadecimal number. The format of\r
934 the input Ascii string String is:\r
935\r
936 [spaces][zeros][x][hexadecimal digits].\r
937\r
938 The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
939 The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If\r
940 "x" appears in the input string, it must be prefixed with at least one 0. The\r
941 function will ignore the pad space, which includes spaces or tab characters,\r
942 before [zeros], [x] or [hexadecimal digits]. The running zero before [x] or\r
943 [hexadecimal digits] will be ignored. Then, the decoding starts after [x] or\r
944 the first valid hexadecimal digit. Then, the function stops at the first\r
945 character that is a not a valid hexadecimal character or Null-terminator,\r
946 whichever on comes first.\r
947\r
948 If String is NULL, then ASSERT().\r
949 If Data is NULL, then ASSERT().\r
950 If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
951 PcdMaximumAsciiStringLength Ascii characters, not including the\r
952 Null-terminator, then ASSERT().\r
953\r
954 If String has no valid hexadecimal digits in the above format, then 0 is\r
955 stored at the location pointed to by Data.\r
956 If the number represented by String exceeds the range defined by UINTN, then\r
957 MAX_UINTN is stored at the location pointed to by Data.\r
958\r
959 If EndPointer is not NULL, a pointer to the character that stopped the scan\r
960 is stored at the location pointed to by EndPointer. If String has no valid\r
961 hexadecimal digits right after the optional pad spaces, the value of String\r
962 is stored at the location pointed to by EndPointer.\r
963\r
964 @param String Pointer to a Null-terminated Ascii string.\r
965 @param EndPointer Pointer to character that stops scan.\r
966 @param Data Pointer to the converted value.\r
967\r
968 @retval RETURN_SUCCESS Value is translated from String.\r
969 @retval RETURN_INVALID_PARAMETER If String is NULL.\r
970 If Data is NULL.\r
971 If PcdMaximumAsciiStringLength is not zero,\r
972 and String contains more than\r
973 PcdMaximumAsciiStringLength Ascii\r
974 characters, not including the\r
975 Null-terminator.\r
976 @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
977 the range defined by UINTN.\r
978\r
979**/\r
980RETURN_STATUS\r
981EFIAPI\r
982AsciiStrHexToUintnS (\r
983 IN CONST CHAR8 *String,\r
984 OUT CHAR8 **EndPointer, OPTIONAL\r
985 OUT UINTN *Data\r
986 );\r
987\r
988/**\r
989 Convert a Null-terminated Ascii hexadecimal string to a value of type UINT64.\r
990\r
991 This function outputs a value of type UINT64 by interpreting the contents of\r
992 the Ascii string specified by String as a hexadecimal number. The format of\r
993 the input Ascii string String is:\r
994\r
995 [spaces][zeros][x][hexadecimal digits].\r
996\r
997 The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
998 The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If\r
999 "x" appears in the input string, it must be prefixed with at least one 0. The\r
1000 function will ignore the pad space, which includes spaces or tab characters,\r
1001 before [zeros], [x] or [hexadecimal digits]. The running zero before [x] or\r
1002 [hexadecimal digits] will be ignored. Then, the decoding starts after [x] or\r
1003 the first valid hexadecimal digit. Then, the function stops at the first\r
1004 character that is a not a valid hexadecimal character or Null-terminator,\r
1005 whichever on comes first.\r
1006\r
1007 If String is NULL, then ASSERT().\r
1008 If Data is NULL, then ASSERT().\r
1009 If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
1010 PcdMaximumAsciiStringLength Ascii characters, not including the\r
1011 Null-terminator, then ASSERT().\r
1012\r
1013 If String has no valid hexadecimal digits in the above format, then 0 is\r
1014 stored at the location pointed to by Data.\r
1015 If the number represented by String exceeds the range defined by UINT64, then\r
1016 MAX_UINT64 is stored at the location pointed to by Data.\r
1017\r
1018 If EndPointer is not NULL, a pointer to the character that stopped the scan\r
1019 is stored at the location pointed to by EndPointer. If String has no valid\r
1020 hexadecimal digits right after the optional pad spaces, the value of String\r
1021 is stored at the location pointed to by EndPointer.\r
1022\r
1023 @param String Pointer to a Null-terminated Ascii string.\r
1024 @param EndPointer Pointer to character that stops scan.\r
1025 @param Data Pointer to the converted value.\r
1026\r
1027 @retval RETURN_SUCCESS Value is translated from String.\r
1028 @retval RETURN_INVALID_PARAMETER If String is NULL.\r
1029 If Data is NULL.\r
1030 If PcdMaximumAsciiStringLength is not zero,\r
1031 and String contains more than\r
1032 PcdMaximumAsciiStringLength Ascii\r
1033 characters, not including the\r
1034 Null-terminator.\r
1035 @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
1036 the range defined by UINT64.\r
1037\r
1038**/\r
1039RETURN_STATUS\r
1040EFIAPI\r
1041AsciiStrHexToUint64S (\r
1042 IN CONST CHAR8 *String,\r
1043 OUT CHAR8 **EndPointer, OPTIONAL\r
1044 OUT UINT64 *Data\r
1045 );\r
1046\r
c058d59f 1047\r
1bb390f1
ED
1048#ifndef DISABLE_NEW_DEPRECATED_INTERFACES\r
1049\r
ac644614 1050/**\r
ae591c14 1051 [ATTENTION] This function is deprecated for security reason.\r
1bb390f1 1052\r
ac644614 1053 Copies one Null-terminated Unicode string to another Null-terminated Unicode\r
1054 string and returns the new Unicode string.\r
1055\r
1056 This function copies the contents of the Unicode string Source to the Unicode\r
1057 string Destination, and returns Destination. If Source and Destination\r
1058 overlap, then the results are undefined.\r
1059\r
1060 If Destination is NULL, then ASSERT().\r
1061 If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
1062 If Source is NULL, then ASSERT().\r
1063 If Source is not aligned on a 16-bit boundary, then ASSERT().\r
1064 If Source and Destination overlap, then ASSERT().\r
1065 If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
1066 PcdMaximumUnicodeStringLength Unicode characters not including the\r
1067 Null-terminator, then ASSERT().\r
1068\r
af2dc6a7 1069 @param Destination The pointer to a Null-terminated Unicode string.\r
1070 @param Source The pointer to a Null-terminated Unicode string.\r
ac644614 1071\r
9aa049d9 1072 @return Destination.\r
ac644614 1073\r
1074**/\r
1075CHAR16 *\r
1076EFIAPI\r
1077StrCpy (\r
1078 OUT CHAR16 *Destination,\r
1079 IN CONST CHAR16 *Source\r
1080 );\r
1081\r
1082\r
1083/**\r
ae591c14 1084 [ATTENTION] This function is deprecated for security reason.\r
1bb390f1 1085\r
af2dc6a7 1086 Copies up to a specified length from one Null-terminated Unicode string to \r
17f695ed 1087 another Null-terminated Unicode string and returns the new Unicode string.\r
ac644614 1088\r
1089 This function copies the contents of the Unicode string Source to the Unicode\r
1090 string Destination, and returns Destination. At most, Length Unicode\r
1091 characters are copied from Source to Destination. If Length is 0, then\r
1092 Destination is returned unmodified. If Length is greater that the number of\r
1093 Unicode characters in Source, then Destination is padded with Null Unicode\r
1094 characters. If Source and Destination overlap, then the results are\r
1095 undefined.\r
1096\r
1097 If Length > 0 and Destination is NULL, then ASSERT().\r
1098 If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r
1099 If Length > 0 and Source is NULL, then ASSERT().\r
77f863ee 1100 If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r
ac644614 1101 If Source and Destination overlap, then ASSERT().\r
50c247fd 1102 If PcdMaximumUnicodeStringLength is not zero, and Length is greater than \r
1103 PcdMaximumUnicodeStringLength, then ASSERT().\r
ac644614 1104 If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
50c247fd 1105 PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r
1106 then ASSERT().\r
ac644614 1107\r
af2dc6a7 1108 @param Destination The pointer to a Null-terminated Unicode string.\r
1109 @param Source The pointer to a Null-terminated Unicode string.\r
1110 @param Length The maximum number of Unicode characters to copy.\r
ac644614 1111\r
9aa049d9 1112 @return Destination.\r
ac644614 1113\r
1114**/\r
1115CHAR16 *\r
1116EFIAPI\r
1117StrnCpy (\r
1118 OUT CHAR16 *Destination,\r
1119 IN CONST CHAR16 *Source,\r
1120 IN UINTN Length\r
1121 );\r
1bb390f1 1122#endif\r
ac644614 1123\r
1124/**\r
1125 Returns the length of a Null-terminated Unicode string.\r
1126\r
1127 This function returns the number of Unicode characters in the Null-terminated\r
1128 Unicode string specified by String.\r
1129\r
1130 If String is NULL, then ASSERT().\r
1131 If String is not aligned on a 16-bit boundary, then ASSERT().\r
1132 If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
1133 PcdMaximumUnicodeStringLength Unicode characters not including the\r
1134 Null-terminator, then ASSERT().\r
1135\r
1136 @param String Pointer to a Null-terminated Unicode string.\r
1137\r
1138 @return The length of String.\r
1139\r
1140**/\r
1141UINTN\r
1142EFIAPI\r
1143StrLen (\r
1144 IN CONST CHAR16 *String\r
1145 );\r
1146\r
1147\r
1148/**\r
1149 Returns the size of a Null-terminated Unicode string in bytes, including the\r
1150 Null terminator.\r
1151\r
17f695ed 1152 This function returns the size, in bytes, of the Null-terminated Unicode string \r
1153 specified by String.\r
ac644614 1154\r
1155 If String is NULL, then ASSERT().\r
1156 If String is not aligned on a 16-bit boundary, then ASSERT().\r
1157 If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
1158 PcdMaximumUnicodeStringLength Unicode characters not including the\r
1159 Null-terminator, then ASSERT().\r
1160\r
af2dc6a7 1161 @param String The pointer to a Null-terminated Unicode string.\r
ac644614 1162\r
1163 @return The size of String.\r
1164\r
1165**/\r
1166UINTN\r
1167EFIAPI\r
1168StrSize (\r
1169 IN CONST CHAR16 *String\r
1170 );\r
1171\r
1172\r
1173/**\r
1174 Compares two Null-terminated Unicode strings, and returns the difference\r
1175 between the first mismatched Unicode characters.\r
1176\r
1177 This function compares the Null-terminated Unicode string FirstString to the\r
1178 Null-terminated Unicode string SecondString. If FirstString is identical to\r
1179 SecondString, then 0 is returned. Otherwise, the value returned is the first\r
1180 mismatched Unicode character in SecondString subtracted from the first\r
1181 mismatched Unicode character in FirstString.\r
1182\r
1183 If FirstString is NULL, then ASSERT().\r
1184 If FirstString is not aligned on a 16-bit boundary, then ASSERT().\r
1185 If SecondString is NULL, then ASSERT().\r
1186 If SecondString is not aligned on a 16-bit boundary, then ASSERT().\r
1187 If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more\r
1188 than PcdMaximumUnicodeStringLength Unicode characters not including the\r
1189 Null-terminator, then ASSERT().\r
1190 If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more\r
af2dc6a7 1191 than PcdMaximumUnicodeStringLength Unicode characters, not including the\r
ac644614 1192 Null-terminator, then ASSERT().\r
1193\r
af2dc6a7 1194 @param FirstString The pointer to a Null-terminated Unicode string.\r
1195 @param SecondString The pointer to a Null-terminated Unicode string.\r
ac644614 1196\r
1106ffe1 1197 @retval 0 FirstString is identical to SecondString.\r
1198 @return others FirstString is not identical to SecondString.\r
ac644614 1199\r
1200**/\r
1201INTN\r
1202EFIAPI\r
1203StrCmp (\r
1204 IN CONST CHAR16 *FirstString,\r
1205 IN CONST CHAR16 *SecondString\r
1206 );\r
1207\r
1208\r
1209/**\r
17f695ed 1210 Compares up to a specified length the contents of two Null-terminated Unicode strings,\r
1211 and returns the difference between the first mismatched Unicode characters.\r
1212 \r
ac644614 1213 This function compares the Null-terminated Unicode string FirstString to the\r
1214 Null-terminated Unicode string SecondString. At most, Length Unicode\r
1215 characters will be compared. If Length is 0, then 0 is returned. If\r
1216 FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r
1217 value returned is the first mismatched Unicode character in SecondString\r
1218 subtracted from the first mismatched Unicode character in FirstString.\r
1219\r
1220 If Length > 0 and FirstString is NULL, then ASSERT().\r
77f863ee 1221 If Length > 0 and FirstString is not aligned on a 16-bit boundary, then ASSERT().\r
ac644614 1222 If Length > 0 and SecondString is NULL, then ASSERT().\r
77f863ee 1223 If Length > 0 and SecondString is not aligned on a 16-bit boundary, then ASSERT().\r
50c247fd 1224 If PcdMaximumUnicodeStringLength is not zero, and Length is greater than\r
1225 PcdMaximumUnicodeStringLength, then ASSERT().\r
1226 If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more than\r
1227 PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r
1228 then ASSERT().\r
1229 If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more than\r
1230 PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r
1231 then ASSERT().\r
ac644614 1232\r
af2dc6a7 1233 @param FirstString The pointer to a Null-terminated Unicode string.\r
1234 @param SecondString The pointer to a Null-terminated Unicode string.\r
1235 @param Length The maximum number of Unicode characters to compare.\r
ac644614 1236\r
1106ffe1 1237 @retval 0 FirstString is identical to SecondString.\r
1238 @return others FirstString is not identical to SecondString.\r
ac644614 1239\r
1240**/\r
1241INTN\r
1242EFIAPI\r
1243StrnCmp (\r
1244 IN CONST CHAR16 *FirstString,\r
1245 IN CONST CHAR16 *SecondString,\r
1246 IN UINTN Length\r
1247 );\r
1248\r
1249\r
1bb390f1
ED
1250#ifndef DISABLE_NEW_DEPRECATED_INTERFACES\r
1251\r
ac644614 1252/**\r
ae591c14 1253 [ATTENTION] This function is deprecated for security reason.\r
1bb390f1 1254\r
ac644614 1255 Concatenates one Null-terminated Unicode string to another Null-terminated\r
1256 Unicode string, and returns the concatenated Unicode string.\r
1257\r
1258 This function concatenates two Null-terminated Unicode strings. The contents\r
1259 of Null-terminated Unicode string Source are concatenated to the end of\r
1260 Null-terminated Unicode string Destination. The Null-terminated concatenated\r
1261 Unicode String is returned. If Source and Destination overlap, then the\r
1262 results are undefined.\r
1263\r
1264 If Destination is NULL, then ASSERT().\r
77f863ee 1265 If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
ac644614 1266 If Source is NULL, then ASSERT().\r
77f863ee 1267 If Source is not aligned on a 16-bit boundary, then ASSERT().\r
ac644614 1268 If Source and Destination overlap, then ASSERT().\r
1269 If PcdMaximumUnicodeStringLength is not zero, and Destination contains more\r
af2dc6a7 1270 than PcdMaximumUnicodeStringLength Unicode characters, not including the\r
ac644614 1271 Null-terminator, then ASSERT().\r
1272 If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
af2dc6a7 1273 PcdMaximumUnicodeStringLength Unicode characters, not including the\r
ac644614 1274 Null-terminator, then ASSERT().\r
1275 If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination\r
1276 and Source results in a Unicode string with more than\r
af2dc6a7 1277 PcdMaximumUnicodeStringLength Unicode characters, not including the\r
ac644614 1278 Null-terminator, then ASSERT().\r
1279\r
af2dc6a7 1280 @param Destination The pointer to a Null-terminated Unicode string.\r
1281 @param Source The pointer to a Null-terminated Unicode string.\r
ac644614 1282\r
9aa049d9 1283 @return Destination.\r
ac644614 1284\r
1285**/\r
1286CHAR16 *\r
1287EFIAPI\r
1288StrCat (\r
1289 IN OUT CHAR16 *Destination,\r
1290 IN CONST CHAR16 *Source\r
1291 );\r
1292\r
1293\r
1294/**\r
ae591c14 1295 [ATTENTION] This function is deprecated for security reason.\r
1bb390f1 1296\r
17f695ed 1297 Concatenates up to a specified length one Null-terminated Unicode to the end \r
1298 of another Null-terminated Unicode string, and returns the concatenated \r
ac644614 1299 Unicode string.\r
1300\r
1301 This function concatenates two Null-terminated Unicode strings. The contents\r
1302 of Null-terminated Unicode string Source are concatenated to the end of\r
1303 Null-terminated Unicode string Destination, and Destination is returned. At\r
1304 most, Length Unicode characters are concatenated from Source to the end of\r
1305 Destination, and Destination is always Null-terminated. If Length is 0, then\r
1306 Destination is returned unmodified. If Source and Destination overlap, then\r
1307 the results are undefined.\r
1308\r
1309 If Destination is NULL, then ASSERT().\r
1310 If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r
1311 If Length > 0 and Source is NULL, then ASSERT().\r
1312 If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r
1313 If Source and Destination overlap, then ASSERT().\r
50c247fd 1314 If PcdMaximumUnicodeStringLength is not zero, and Length is greater than \r
1315 PcdMaximumUnicodeStringLength, then ASSERT().\r
ac644614 1316 If PcdMaximumUnicodeStringLength is not zero, and Destination contains more\r
50c247fd 1317 than PcdMaximumUnicodeStringLength Unicode characters, not including the\r
ac644614 1318 Null-terminator, then ASSERT().\r
1319 If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
50c247fd 1320 PcdMaximumUnicodeStringLength Unicode characters, not including the\r
ac644614 1321 Null-terminator, then ASSERT().\r
1322 If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination\r
50c247fd 1323 and Source results in a Unicode string with more than PcdMaximumUnicodeStringLength\r
1324 Unicode characters, not including the Null-terminator, then ASSERT().\r
ac644614 1325\r
af2dc6a7 1326 @param Destination The pointer to a Null-terminated Unicode string.\r
1327 @param Source The pointer to a Null-terminated Unicode string.\r
1328 @param Length The maximum number of Unicode characters to concatenate from\r
ac644614 1329 Source.\r
1330\r
9aa049d9 1331 @return Destination.\r
ac644614 1332\r
1333**/\r
1334CHAR16 *\r
1335EFIAPI\r
1336StrnCat (\r
1337 IN OUT CHAR16 *Destination,\r
1338 IN CONST CHAR16 *Source,\r
1339 IN UINTN Length\r
1340 );\r
1bb390f1 1341#endif\r
ac644614 1342\r
1343/**\r
9aa049d9 1344 Returns the first occurrence of a Null-terminated Unicode sub-string\r
ac644614 1345 in a Null-terminated Unicode string.\r
1346\r
1347 This function scans the contents of the Null-terminated Unicode string\r
1348 specified by String and returns the first occurrence of SearchString.\r
1349 If SearchString is not found in String, then NULL is returned. If\r
af2dc6a7 1350 the length of SearchString is zero, then String is returned.\r
ac644614 1351\r
1352 If String is NULL, then ASSERT().\r
1353 If String is not aligned on a 16-bit boundary, then ASSERT().\r
1354 If SearchString is NULL, then ASSERT().\r
1355 If SearchString is not aligned on a 16-bit boundary, then ASSERT().\r
1356\r
1357 If PcdMaximumUnicodeStringLength is not zero, and SearchString\r
1358 or String contains more than PcdMaximumUnicodeStringLength Unicode\r
af2dc6a7 1359 characters, not including the Null-terminator, then ASSERT().\r
ac644614 1360\r
af2dc6a7 1361 @param String The pointer to a Null-terminated Unicode string.\r
1362 @param SearchString The pointer to a Null-terminated Unicode string to search for.\r
ac644614 1363\r
1364 @retval NULL If the SearchString does not appear in String.\r
1106ffe1 1365 @return others If there is a match.\r
ac644614 1366\r
1367**/\r
1368CHAR16 *\r
1369EFIAPI\r
1370StrStr (\r
17f695ed 1371 IN CONST CHAR16 *String,\r
1372 IN CONST CHAR16 *SearchString\r
ac644614 1373 );\r
1374\r
1375/**\r
1376 Convert a Null-terminated Unicode decimal string to a value of\r
1377 type UINTN.\r
1378\r
1379 This function returns a value of type UINTN by interpreting the contents\r
1380 of the Unicode string specified by String as a decimal number. The format\r
1381 of the input Unicode string String is:\r
1382\r
1383 [spaces] [decimal digits].\r
1384\r
1385 The valid decimal digit character is in the range [0-9]. The\r
1386 function will ignore the pad space, which includes spaces or\r
1387 tab characters, before [decimal digits]. The running zero in the\r
1388 beginning of [decimal digits] will be ignored. Then, the function\r
1389 stops at the first character that is a not a valid decimal character\r
1390 or a Null-terminator, whichever one comes first.\r
1391\r
1392 If String is NULL, then ASSERT().\r
1393 If String is not aligned in a 16-bit boundary, then ASSERT().\r
1394 If String has only pad spaces, then 0 is returned.\r
1395 If String has no pad spaces or valid decimal digits,\r
1396 then 0 is returned.\r
1397 If the number represented by String overflows according\r
1398 to the range defined by UINTN, then ASSERT().\r
1399\r
1400 If PcdMaximumUnicodeStringLength is not zero, and String contains\r
1401 more than PcdMaximumUnicodeStringLength Unicode characters not including\r
1402 the Null-terminator, then ASSERT().\r
1403\r
af2dc6a7 1404 @param String The pointer to a Null-terminated Unicode string.\r
ac644614 1405\r
38bbd3d9 1406 @retval Value translated from String.\r
ac644614 1407\r
1408**/\r
1409UINTN\r
1410EFIAPI\r
1411StrDecimalToUintn (\r
17f695ed 1412 IN CONST CHAR16 *String\r
ac644614 1413 );\r
1414\r
1415/**\r
1416 Convert a Null-terminated Unicode decimal string to a value of\r
1417 type UINT64.\r
1418\r
1419 This function returns a value of type UINT64 by interpreting the contents\r
1420 of the Unicode string specified by String as a decimal number. The format\r
1421 of the input Unicode string String is:\r
1422\r
1423 [spaces] [decimal digits].\r
1424\r
1425 The valid decimal digit character is in the range [0-9]. The\r
1426 function will ignore the pad space, which includes spaces or\r
1427 tab characters, before [decimal digits]. The running zero in the\r
1428 beginning of [decimal digits] will be ignored. Then, the function\r
1429 stops at the first character that is a not a valid decimal character\r
1430 or a Null-terminator, whichever one comes first.\r
1431\r
1432 If String is NULL, then ASSERT().\r
1433 If String is not aligned in a 16-bit boundary, then ASSERT().\r
1434 If String has only pad spaces, then 0 is returned.\r
1435 If String has no pad spaces or valid decimal digits,\r
1436 then 0 is returned.\r
1437 If the number represented by String overflows according\r
1438 to the range defined by UINT64, then ASSERT().\r
1439\r
1440 If PcdMaximumUnicodeStringLength is not zero, and String contains\r
1441 more than PcdMaximumUnicodeStringLength Unicode characters not including\r
1442 the Null-terminator, then ASSERT().\r
1443\r
af2dc6a7 1444 @param String The pointer to a Null-terminated Unicode string.\r
ac644614 1445\r
38bbd3d9 1446 @retval Value translated from String.\r
ac644614 1447\r
1448**/\r
1449UINT64\r
1450EFIAPI\r
1451StrDecimalToUint64 (\r
17f695ed 1452 IN CONST CHAR16 *String\r
ac644614 1453 );\r
1454 \r
1455\r
1456/**\r
1457 Convert a Null-terminated Unicode hexadecimal string to a value of type UINTN.\r
1458\r
1459 This function returns a value of type UINTN by interpreting the contents\r
1460 of the Unicode string specified by String as a hexadecimal number.\r
1461 The format of the input Unicode string String is:\r
1462\r
1463 [spaces][zeros][x][hexadecimal digits].\r
1464\r
1465 The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
1466 The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
1467 If "x" appears in the input string, it must be prefixed with at least one 0.\r
1468 The function will ignore the pad space, which includes spaces or tab characters,\r
1469 before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or\r
1470 [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the\r
af2dc6a7 1471 first valid hexadecimal digit. Then, the function stops at the first character \r
1472 that is a not a valid hexadecimal character or NULL, whichever one comes first.\r
ac644614 1473\r
1474 If String is NULL, then ASSERT().\r
1475 If String is not aligned in a 16-bit boundary, then ASSERT().\r
1476 If String has only pad spaces, then zero is returned.\r
1477 If String has no leading pad spaces, leading zeros or valid hexadecimal digits,\r
1478 then zero is returned.\r
1479 If the number represented by String overflows according to the range defined by\r
1480 UINTN, then ASSERT().\r
1481\r
1482 If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
1483 PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator,\r
1484 then ASSERT().\r
1485\r
af2dc6a7 1486 @param String The pointer to a Null-terminated Unicode string.\r
ac644614 1487\r
38bbd3d9 1488 @retval Value translated from String.\r
ac644614 1489\r
1490**/\r
1491UINTN\r
1492EFIAPI\r
1493StrHexToUintn (\r
17f695ed 1494 IN CONST CHAR16 *String\r
ac644614 1495 );\r
1496\r
1497\r
1498/**\r
1499 Convert a Null-terminated Unicode hexadecimal string to a value of type UINT64.\r
1500\r
1501 This function returns a value of type UINT64 by interpreting the contents\r
1502 of the Unicode string specified by String as a hexadecimal number.\r
1503 The format of the input Unicode string String is\r
1504\r
1505 [spaces][zeros][x][hexadecimal digits].\r
1506\r
1507 The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
1508 The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
1509 If "x" appears in the input string, it must be prefixed with at least one 0.\r
1510 The function will ignore the pad space, which includes spaces or tab characters,\r
1511 before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or\r
1512 [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the\r
1513 first valid hexadecimal digit. Then, the function stops at the first character that is\r
1514 a not a valid hexadecimal character or NULL, whichever one comes first.\r
1515\r
1516 If String is NULL, then ASSERT().\r
1517 If String is not aligned in a 16-bit boundary, then ASSERT().\r
1518 If String has only pad spaces, then zero is returned.\r
1519 If String has no leading pad spaces, leading zeros or valid hexadecimal digits,\r
1520 then zero is returned.\r
1521 If the number represented by String overflows according to the range defined by\r
1522 UINT64, then ASSERT().\r
1523\r
1524 If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
1525 PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator,\r
1526 then ASSERT().\r
1527\r
af2dc6a7 1528 @param String The pointer to a Null-terminated Unicode string.\r
ac644614 1529\r
38bbd3d9 1530 @retval Value translated from String.\r
ac644614 1531\r
1532**/\r
1533UINT64\r
1534EFIAPI\r
1535StrHexToUint64 (\r
17f695ed 1536 IN CONST CHAR16 *String\r
ac644614 1537 );\r
1538\r
415aa2f1
SZ
1539#ifndef DISABLE_NEW_DEPRECATED_INTERFACES\r
1540\r
ac644614 1541/**\r
415aa2f1
SZ
1542 [ATTENTION] This function is deprecated for security reason.\r
1543\r
17f695ed 1544 Convert a Null-terminated Unicode string to a Null-terminated\r
ac644614 1545 ASCII string and returns the ASCII string.\r
1546\r
1547 This function converts the content of the Unicode string Source\r
1548 to the ASCII string Destination by copying the lower 8 bits of\r
1549 each Unicode character. It returns Destination.\r
1550\r
d3e0289c 1551 The caller is responsible to make sure Destination points to a buffer with size\r
1552 equal or greater than ((StrLen (Source) + 1) * sizeof (CHAR8)) in bytes.\r
1553\r
ac644614 1554 If any Unicode characters in Source contain non-zero value in\r
1555 the upper 8 bits, then ASSERT().\r
1556\r
1557 If Destination is NULL, then ASSERT().\r
1558 If Source is NULL, then ASSERT().\r
1559 If Source is not aligned on a 16-bit boundary, then ASSERT().\r
1560 If Source and Destination overlap, then ASSERT().\r
1561\r
1562 If PcdMaximumUnicodeStringLength is not zero, and Source contains\r
1563 more than PcdMaximumUnicodeStringLength Unicode characters not including\r
1564 the Null-terminator, then ASSERT().\r
1565\r
1566 If PcdMaximumAsciiStringLength is not zero, and Source contains more\r
1567 than PcdMaximumAsciiStringLength Unicode characters not including the\r
1568 Null-terminator, then ASSERT().\r
1569\r
af2dc6a7 1570 @param Source The pointer to a Null-terminated Unicode string.\r
1571 @param Destination The pointer to a Null-terminated ASCII string.\r
ac644614 1572\r
9aa049d9 1573 @return Destination.\r
ac644614 1574\r
1575**/\r
1576CHAR8 *\r
1577EFIAPI\r
1578UnicodeStrToAsciiStr (\r
17f695ed 1579 IN CONST CHAR16 *Source,\r
1580 OUT CHAR8 *Destination\r
ac644614 1581 );\r
1582\r
415aa2f1
SZ
1583#endif\r
1584\r
3ab41b7a
JY
1585/**\r
1586 Convert a Null-terminated Unicode string to a Null-terminated\r
1587 ASCII string.\r
1588\r
1589 This function is similar to AsciiStrCpyS.\r
1590\r
1591 This function converts the content of the Unicode string Source\r
1592 to the ASCII string Destination by copying the lower 8 bits of\r
1593 each Unicode character. The function terminates the ASCII string\r
1594 Destination by appending a Null-terminator character at the end.\r
1595\r
1596 The caller is responsible to make sure Destination points to a buffer with size\r
1597 equal or greater than ((StrLen (Source) + 1) * sizeof (CHAR8)) in bytes.\r
1598\r
1599 If any Unicode characters in Source contain non-zero value in\r
1600 the upper 8 bits, then ASSERT().\r
1601\r
1602 If Source is not aligned on a 16-bit boundary, then ASSERT().\r
1603 If an error would be returned, then the function will also ASSERT().\r
1604\r
1605 If an error is returned, then the Destination is unmodified.\r
1606\r
1607 @param Source The pointer to a Null-terminated Unicode string.\r
1608 @param Destination The pointer to a Null-terminated ASCII string.\r
1609 @param DestMax The maximum number of Destination Ascii\r
1610 char, including terminating null char.\r
1611\r
1612 @retval RETURN_SUCCESS String is converted.\r
1613 @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r
1614 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
1615 If Source is NULL.\r
1616 If PcdMaximumAsciiStringLength is not zero,\r
1617 and DestMax is greater than\r
1618 PcdMaximumAsciiStringLength.\r
1619 If PcdMaximumUnicodeStringLength is not zero,\r
1620 and DestMax is greater than\r
1621 PcdMaximumUnicodeStringLength.\r
1622 If DestMax is 0.\r
1623 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
1624\r
1625**/\r
1626RETURN_STATUS\r
1627EFIAPI\r
1628UnicodeStrToAsciiStrS (\r
1629 IN CONST CHAR16 *Source,\r
1630 OUT CHAR8 *Destination,\r
1631 IN UINTN DestMax\r
1632 );\r
ac644614 1633\r
1bb390f1
ED
1634#ifndef DISABLE_NEW_DEPRECATED_INTERFACES\r
1635\r
ac644614 1636/**\r
ae591c14 1637 [ATTENTION] This function is deprecated for security reason.\r
1bb390f1 1638\r
ac644614 1639 Copies one Null-terminated ASCII string to another Null-terminated ASCII\r
1640 string and returns the new ASCII string.\r
1641\r
1642 This function copies the contents of the ASCII string Source to the ASCII\r
1643 string Destination, and returns Destination. If Source and Destination\r
1644 overlap, then the results are undefined.\r
1645\r
1646 If Destination is NULL, then ASSERT().\r
1647 If Source is NULL, then ASSERT().\r
1648 If Source and Destination overlap, then ASSERT().\r
1649 If PcdMaximumAsciiStringLength is not zero and Source contains more than\r
1650 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
1651 then ASSERT().\r
1652\r
af2dc6a7 1653 @param Destination The pointer to a Null-terminated ASCII string.\r
1654 @param Source The pointer to a Null-terminated ASCII string.\r
ac644614 1655\r
1656 @return Destination\r
1657\r
1658**/\r
1659CHAR8 *\r
1660EFIAPI\r
1661AsciiStrCpy (\r
1662 OUT CHAR8 *Destination,\r
1663 IN CONST CHAR8 *Source\r
1664 );\r
1665\r
1666\r
1667/**\r
ae591c14 1668 [ATTENTION] This function is deprecated for security reason.\r
1bb390f1 1669\r
17f695ed 1670 Copies up to a specified length one Null-terminated ASCII string to another \r
1671 Null-terminated ASCII string and returns the new ASCII string.\r
ac644614 1672\r
1673 This function copies the contents of the ASCII string Source to the ASCII\r
1674 string Destination, and returns Destination. At most, Length ASCII characters\r
1675 are copied from Source to Destination. If Length is 0, then Destination is\r
1676 returned unmodified. If Length is greater that the number of ASCII characters\r
1677 in Source, then Destination is padded with Null ASCII characters. If Source\r
1678 and Destination overlap, then the results are undefined.\r
1679\r
1680 If Destination is NULL, then ASSERT().\r
1681 If Source is NULL, then ASSERT().\r
1682 If Source and Destination overlap, then ASSERT().\r
50c247fd 1683 If PcdMaximumAsciiStringLength is not zero, and Length is greater than \r
1684 PcdMaximumAsciiStringLength, then ASSERT().\r
ac644614 1685 If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r
50c247fd 1686 PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
ac644614 1687 then ASSERT().\r
1688\r
af2dc6a7 1689 @param Destination The pointer to a Null-terminated ASCII string.\r
1690 @param Source The pointer to a Null-terminated ASCII string.\r
1691 @param Length The maximum number of ASCII characters to copy.\r
ac644614 1692\r
1693 @return Destination\r
1694\r
1695**/\r
1696CHAR8 *\r
1697EFIAPI\r
1698AsciiStrnCpy (\r
1699 OUT CHAR8 *Destination,\r
1700 IN CONST CHAR8 *Source,\r
1701 IN UINTN Length\r
1702 );\r
1bb390f1 1703#endif\r
ac644614 1704\r
1705/**\r
1706 Returns the length of a Null-terminated ASCII string.\r
1707\r
1708 This function returns the number of ASCII characters in the Null-terminated\r
1709 ASCII string specified by String.\r
1710\r
1711 If Length > 0 and Destination is NULL, then ASSERT().\r
1712 If Length > 0 and Source is NULL, then ASSERT().\r
1713 If PcdMaximumAsciiStringLength is not zero and String contains more than\r
1714 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
1715 then ASSERT().\r
1716\r
af2dc6a7 1717 @param String The pointer to a Null-terminated ASCII string.\r
ac644614 1718\r
1719 @return The length of String.\r
1720\r
1721**/\r
1722UINTN\r
1723EFIAPI\r
1724AsciiStrLen (\r
1725 IN CONST CHAR8 *String\r
1726 );\r
1727\r
1728\r
1729/**\r
1730 Returns the size of a Null-terminated ASCII string in bytes, including the\r
1731 Null terminator.\r
1732\r
1733 This function returns the size, in bytes, of the Null-terminated ASCII string\r
1734 specified by String.\r
1735\r
1736 If String is NULL, then ASSERT().\r
1737 If PcdMaximumAsciiStringLength is not zero and String contains more than\r
1738 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
1739 then ASSERT().\r
1740\r
af2dc6a7 1741 @param String The pointer to a Null-terminated ASCII string.\r
ac644614 1742\r
1743 @return The size of String.\r
1744\r
1745**/\r
1746UINTN\r
1747EFIAPI\r
1748AsciiStrSize (\r
1749 IN CONST CHAR8 *String\r
1750 );\r
1751\r
1752\r
1753/**\r
1754 Compares two Null-terminated ASCII strings, and returns the difference\r
1755 between the first mismatched ASCII characters.\r
1756\r
1757 This function compares the Null-terminated ASCII string FirstString to the\r
1758 Null-terminated ASCII string SecondString. If FirstString is identical to\r
1759 SecondString, then 0 is returned. Otherwise, the value returned is the first\r
1760 mismatched ASCII character in SecondString subtracted from the first\r
1761 mismatched ASCII character in FirstString.\r
1762\r
1763 If FirstString is NULL, then ASSERT().\r
1764 If SecondString is NULL, then ASSERT().\r
1765 If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r
1766 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
1767 then ASSERT().\r
1768 If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r
1769 than PcdMaximumAsciiStringLength ASCII characters not including the\r
1770 Null-terminator, then ASSERT().\r
1771\r
af2dc6a7 1772 @param FirstString The pointer to a Null-terminated ASCII string.\r
1773 @param SecondString The pointer to a Null-terminated ASCII string.\r
ac644614 1774\r
17f695ed 1775 @retval ==0 FirstString is identical to SecondString.\r
1776 @retval !=0 FirstString is not identical to SecondString.\r
ac644614 1777\r
1778**/\r
1779INTN\r
1780EFIAPI\r
1781AsciiStrCmp (\r
1782 IN CONST CHAR8 *FirstString,\r
1783 IN CONST CHAR8 *SecondString\r
1784 );\r
1785\r
1786\r
1787/**\r
1788 Performs a case insensitive comparison of two Null-terminated ASCII strings,\r
1789 and returns the difference between the first mismatched ASCII characters.\r
1790\r
1791 This function performs a case insensitive comparison of the Null-terminated\r
1792 ASCII string FirstString to the Null-terminated ASCII string SecondString. If\r
1793 FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r
1794 value returned is the first mismatched lower case ASCII character in\r
1795 SecondString subtracted from the first mismatched lower case ASCII character\r
1796 in FirstString.\r
1797\r
1798 If FirstString is NULL, then ASSERT().\r
1799 If SecondString is NULL, then ASSERT().\r
1800 If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r
1801 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
1802 then ASSERT().\r
1803 If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r
1804 than PcdMaximumAsciiStringLength ASCII characters not including the\r
1805 Null-terminator, then ASSERT().\r
1806\r
af2dc6a7 1807 @param FirstString The pointer to a Null-terminated ASCII string.\r
1808 @param SecondString The pointer to a Null-terminated ASCII string.\r
ac644614 1809\r
17f695ed 1810 @retval ==0 FirstString is identical to SecondString using case insensitive\r
1106ffe1 1811 comparisons.\r
17f695ed 1812 @retval !=0 FirstString is not identical to SecondString using case\r
1106ffe1 1813 insensitive comparisons.\r
ac644614 1814\r
1815**/\r
1816INTN\r
1817EFIAPI\r
1818AsciiStriCmp (\r
1819 IN CONST CHAR8 *FirstString,\r
1820 IN CONST CHAR8 *SecondString\r
1821 );\r
1822\r
1823\r
1824/**\r
1825 Compares two Null-terminated ASCII strings with maximum lengths, and returns\r
1826 the difference between the first mismatched ASCII characters.\r
1827\r
1828 This function compares the Null-terminated ASCII string FirstString to the\r
1829 Null-terminated ASCII string SecondString. At most, Length ASCII characters\r
1830 will be compared. If Length is 0, then 0 is returned. If FirstString is\r
1831 identical to SecondString, then 0 is returned. Otherwise, the value returned\r
1832 is the first mismatched ASCII character in SecondString subtracted from the\r
1833 first mismatched ASCII character in FirstString.\r
1834\r
1835 If Length > 0 and FirstString is NULL, then ASSERT().\r
1836 If Length > 0 and SecondString is NULL, then ASSERT().\r
50c247fd 1837 If PcdMaximumAsciiStringLength is not zero, and Length is greater than \r
1838 PcdMaximumAsciiStringLength, then ASSERT().\r
1839 If PcdMaximumAsciiStringLength is not zero, and FirstString contains more than\r
1840 PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
ac644614 1841 then ASSERT().\r
50c247fd 1842 If PcdMaximumAsciiStringLength is not zero, and SecondString contains more than\r
1843 PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
ac644614 1844 then ASSERT().\r
1845\r
af2dc6a7 1846 @param FirstString The pointer to a Null-terminated ASCII string.\r
1847 @param SecondString The pointer to a Null-terminated ASCII string.\r
1848 @param Length The maximum number of ASCII characters for compare.\r
ac644614 1849 \r
17f695ed 1850 @retval ==0 FirstString is identical to SecondString.\r
1851 @retval !=0 FirstString is not identical to SecondString.\r
ac644614 1852\r
1853**/\r
1854INTN\r
1855EFIAPI\r
1856AsciiStrnCmp (\r
1857 IN CONST CHAR8 *FirstString,\r
1858 IN CONST CHAR8 *SecondString,\r
1859 IN UINTN Length\r
1860 );\r
1861\r
1862\r
1bb390f1
ED
1863#ifndef DISABLE_NEW_DEPRECATED_INTERFACES\r
1864\r
ac644614 1865/**\r
ae591c14 1866 [ATTENTION] This function is deprecated for security reason.\r
1bb390f1 1867\r
ac644614 1868 Concatenates one Null-terminated ASCII string to another Null-terminated\r
1869 ASCII string, and returns the concatenated ASCII string.\r
1870\r
1871 This function concatenates two Null-terminated ASCII strings. The contents of\r
1872 Null-terminated ASCII string Source are concatenated to the end of Null-\r
1873 terminated ASCII string Destination. The Null-terminated concatenated ASCII\r
1874 String is returned.\r
1875\r
1876 If Destination is NULL, then ASSERT().\r
1877 If Source is NULL, then ASSERT().\r
1878 If PcdMaximumAsciiStringLength is not zero and Destination contains more than\r
1879 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
1880 then ASSERT().\r
1881 If PcdMaximumAsciiStringLength is not zero and Source contains more than\r
1882 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
1883 then ASSERT().\r
1884 If PcdMaximumAsciiStringLength is not zero and concatenating Destination and\r
1885 Source results in a ASCII string with more than PcdMaximumAsciiStringLength\r
1886 ASCII characters, then ASSERT().\r
1887\r
af2dc6a7 1888 @param Destination The pointer to a Null-terminated ASCII string.\r
1889 @param Source The pointer to a Null-terminated ASCII string.\r
ac644614 1890\r
1891 @return Destination\r
1892\r
1893**/\r
1894CHAR8 *\r
1895EFIAPI\r
1896AsciiStrCat (\r
1897 IN OUT CHAR8 *Destination,\r
1898 IN CONST CHAR8 *Source\r
1899 );\r
1900\r
1901\r
1902/**\r
ae591c14 1903 [ATTENTION] This function is deprecated for security reason.\r
1bb390f1 1904\r
17f695ed 1905 Concatenates up to a specified length one Null-terminated ASCII string to \r
1906 the end of another Null-terminated ASCII string, and returns the \r
1907 concatenated ASCII string.\r
ac644614 1908\r
1909 This function concatenates two Null-terminated ASCII strings. The contents\r
1910 of Null-terminated ASCII string Source are concatenated to the end of Null-\r
1911 terminated ASCII string Destination, and Destination is returned. At most,\r
1912 Length ASCII characters are concatenated from Source to the end of\r
1913 Destination, and Destination is always Null-terminated. If Length is 0, then\r
1914 Destination is returned unmodified. If Source and Destination overlap, then\r
1915 the results are undefined.\r
1916\r
1917 If Length > 0 and Destination is NULL, then ASSERT().\r
1918 If Length > 0 and Source is NULL, then ASSERT().\r
1919 If Source and Destination overlap, then ASSERT().\r
50c247fd 1920 If PcdMaximumAsciiStringLength is not zero, and Length is greater than\r
1921 PcdMaximumAsciiStringLength, then ASSERT().\r
ac644614 1922 If PcdMaximumAsciiStringLength is not zero, and Destination contains more than\r
50c247fd 1923 PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
ac644614 1924 then ASSERT().\r
1925 If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r
50c247fd 1926 PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
ac644614 1927 then ASSERT().\r
1928 If PcdMaximumAsciiStringLength is not zero, and concatenating Destination and\r
1929 Source results in a ASCII string with more than PcdMaximumAsciiStringLength\r
50c247fd 1930 ASCII characters, not including the Null-terminator, then ASSERT().\r
ac644614 1931\r
af2dc6a7 1932 @param Destination The pointer to a Null-terminated ASCII string.\r
1933 @param Source The pointer to a Null-terminated ASCII string.\r
1934 @param Length The maximum number of ASCII characters to concatenate from\r
ac644614 1935 Source.\r
1936\r
1937 @return Destination\r
1938\r
1939**/\r
1940CHAR8 *\r
1941EFIAPI\r
1942AsciiStrnCat (\r
1943 IN OUT CHAR8 *Destination,\r
1944 IN CONST CHAR8 *Source,\r
1945 IN UINTN Length\r
1946 );\r
1bb390f1 1947#endif\r
ac644614 1948\r
1949/**\r
9aa049d9 1950 Returns the first occurrence of a Null-terminated ASCII sub-string\r
ac644614 1951 in a Null-terminated ASCII string.\r
1952\r
1953 This function scans the contents of the ASCII string specified by String\r
1954 and returns the first occurrence of SearchString. If SearchString is not\r
1955 found in String, then NULL is returned. If the length of SearchString is zero,\r
1956 then String is returned.\r
1957\r
1958 If String is NULL, then ASSERT().\r
1959 If SearchString is NULL, then ASSERT().\r
1960\r
1961 If PcdMaximumAsciiStringLength is not zero, and SearchString or\r
1962 String contains more than PcdMaximumAsciiStringLength Unicode characters\r
1963 not including the Null-terminator, then ASSERT().\r
1964\r
af2dc6a7 1965 @param String The pointer to a Null-terminated ASCII string.\r
1966 @param SearchString The pointer to a Null-terminated ASCII string to search for.\r
ac644614 1967\r
1968 @retval NULL If the SearchString does not appear in String.\r
17f695ed 1969 @retval others If there is a match return the first occurrence of SearchingString.\r
9aa049d9 1970 If the length of SearchString is zero,return String.\r
ac644614 1971\r
1972**/\r
1973CHAR8 *\r
1974EFIAPI\r
1975AsciiStrStr (\r
17f695ed 1976 IN CONST CHAR8 *String,\r
1977 IN CONST CHAR8 *SearchString\r
ac644614 1978 );\r
1979\r
1980\r
1981/**\r
1982 Convert a Null-terminated ASCII decimal string to a value of type\r
1983 UINTN.\r
1984\r
1985 This function returns a value of type UINTN by interpreting the contents\r
1986 of the ASCII string String as a decimal number. The format of the input\r
1987 ASCII string String is:\r
1988\r
1989 [spaces] [decimal digits].\r
1990\r
1991 The valid decimal digit character is in the range [0-9]. The function will\r
1992 ignore the pad space, which includes spaces or tab characters, before the digits.\r
1993 The running zero in the beginning of [decimal digits] will be ignored. Then, the\r
1994 function stops at the first character that is a not a valid decimal character or\r
1995 Null-terminator, whichever on comes first.\r
1996\r
1997 If String has only pad spaces, then 0 is returned.\r
1998 If String has no pad spaces or valid decimal digits, then 0 is returned.\r
1999 If the number represented by String overflows according to the range defined by\r
2000 UINTN, then ASSERT().\r
2001 If String is NULL, then ASSERT().\r
2002 If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
2003 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
2004 then ASSERT().\r
2005\r
af2dc6a7 2006 @param String The pointer to a Null-terminated ASCII string.\r
ac644614 2007\r
af2dc6a7 2008 @retval The value translated from String.\r
ac644614 2009\r
2010**/\r
2011UINTN\r
2012EFIAPI\r
2013AsciiStrDecimalToUintn (\r
2014 IN CONST CHAR8 *String\r
2015 );\r
2016\r
2017\r
2018/**\r
2019 Convert a Null-terminated ASCII decimal string to a value of type\r
2020 UINT64.\r
2021\r
2022 This function returns a value of type UINT64 by interpreting the contents\r
2023 of the ASCII string String as a decimal number. The format of the input\r
2024 ASCII string String is:\r
2025\r
2026 [spaces] [decimal digits].\r
2027\r
2028 The valid decimal digit character is in the range [0-9]. The function will\r
2029 ignore the pad space, which includes spaces or tab characters, before the digits.\r
2030 The running zero in the beginning of [decimal digits] will be ignored. Then, the\r
2031 function stops at the first character that is a not a valid decimal character or\r
2032 Null-terminator, whichever on comes first.\r
2033\r
2034 If String has only pad spaces, then 0 is returned.\r
2035 If String has no pad spaces or valid decimal digits, then 0 is returned.\r
2036 If the number represented by String overflows according to the range defined by\r
2037 UINT64, then ASSERT().\r
2038 If String is NULL, then ASSERT().\r
2039 If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
2040 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
2041 then ASSERT().\r
2042\r
af2dc6a7 2043 @param String The pointer to a Null-terminated ASCII string.\r
ac644614 2044\r
38bbd3d9 2045 @retval Value translated from String.\r
ac644614 2046\r
2047**/\r
2048UINT64\r
2049EFIAPI\r
2050AsciiStrDecimalToUint64 (\r
17f695ed 2051 IN CONST CHAR8 *String\r
ac644614 2052 );\r
2053\r
2054\r
2055/**\r
2056 Convert a Null-terminated ASCII hexadecimal string to a value of type UINTN.\r
2057\r
2058 This function returns a value of type UINTN by interpreting the contents of\r
2059 the ASCII string String as a hexadecimal number. The format of the input ASCII\r
2060 string String is:\r
2061\r
2062 [spaces][zeros][x][hexadecimal digits].\r
2063\r
2064 The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
2065 The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x"\r
2066 appears in the input string, it must be prefixed with at least one 0. The function\r
2067 will ignore the pad space, which includes spaces or tab characters, before [zeros],\r
2068 [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits]\r
2069 will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal\r
2070 digit. Then, the function stops at the first character that is a not a valid\r
2071 hexadecimal character or Null-terminator, whichever on comes first.\r
2072\r
2073 If String has only pad spaces, then 0 is returned.\r
2074 If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r
2075 0 is returned.\r
2076\r
2077 If the number represented by String overflows according to the range defined by UINTN,\r
2078 then ASSERT().\r
2079 If String is NULL, then ASSERT().\r
2080 If PcdMaximumAsciiStringLength is not zero,\r
2081 and String contains more than PcdMaximumAsciiStringLength ASCII characters not including\r
2082 the Null-terminator, then ASSERT().\r
2083\r
af2dc6a7 2084 @param String The pointer to a Null-terminated ASCII string.\r
ac644614 2085\r
38bbd3d9 2086 @retval Value translated from String.\r
ac644614 2087\r
2088**/\r
2089UINTN\r
2090EFIAPI\r
2091AsciiStrHexToUintn (\r
17f695ed 2092 IN CONST CHAR8 *String\r
ac644614 2093 );\r
2094\r
2095\r
2096/**\r
2097 Convert a Null-terminated ASCII hexadecimal string to a value of type UINT64.\r
2098\r
2099 This function returns a value of type UINT64 by interpreting the contents of\r
2100 the ASCII string String as a hexadecimal number. The format of the input ASCII\r
2101 string String is:\r
2102\r
2103 [spaces][zeros][x][hexadecimal digits].\r
2104\r
2105 The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
2106 The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x"\r
2107 appears in the input string, it must be prefixed with at least one 0. The function\r
2108 will ignore the pad space, which includes spaces or tab characters, before [zeros],\r
2109 [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits]\r
2110 will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal\r
2111 digit. Then, the function stops at the first character that is a not a valid\r
2112 hexadecimal character or Null-terminator, whichever on comes first.\r
2113\r
2114 If String has only pad spaces, then 0 is returned.\r
2115 If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r
2116 0 is returned.\r
2117\r
2118 If the number represented by String overflows according to the range defined by UINT64,\r
2119 then ASSERT().\r
2120 If String is NULL, then ASSERT().\r
2121 If PcdMaximumAsciiStringLength is not zero,\r
2122 and String contains more than PcdMaximumAsciiStringLength ASCII characters not including\r
2123 the Null-terminator, then ASSERT().\r
2124\r
af2dc6a7 2125 @param String The pointer to a Null-terminated ASCII string.\r
ac644614 2126\r
38bbd3d9 2127 @retval Value translated from String.\r
ac644614 2128\r
2129**/\r
2130UINT64\r
2131EFIAPI\r
2132AsciiStrHexToUint64 (\r
17f695ed 2133 IN CONST CHAR8 *String\r
ac644614 2134 );\r
2135\r
415aa2f1 2136#ifndef DISABLE_NEW_DEPRECATED_INTERFACES\r
ac644614 2137\r
2138/**\r
415aa2f1
SZ
2139 [ATTENTION] This function is deprecated for security reason.\r
2140\r
ac644614 2141 Convert one Null-terminated ASCII string to a Null-terminated\r
2142 Unicode string and returns the Unicode string.\r
2143\r
2144 This function converts the contents of the ASCII string Source to the Unicode\r
2145 string Destination, and returns Destination. The function terminates the\r
2146 Unicode string Destination by appending a Null-terminator character at the end.\r
2147 The caller is responsible to make sure Destination points to a buffer with size\r
2148 equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes.\r
2149\r
2150 If Destination is NULL, then ASSERT().\r
2151 If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
2152 If Source is NULL, then ASSERT().\r
2153 If Source and Destination overlap, then ASSERT().\r
2154 If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r
2155 PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
2156 then ASSERT().\r
2157 If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
2158 PcdMaximumUnicodeStringLength ASCII characters not including the\r
2159 Null-terminator, then ASSERT().\r
2160\r
af2dc6a7 2161 @param Source The pointer to a Null-terminated ASCII string.\r
2162 @param Destination The pointer to a Null-terminated Unicode string.\r
ac644614 2163\r
9aa049d9 2164 @return Destination.\r
ac644614 2165\r
2166**/\r
2167CHAR16 *\r
2168EFIAPI\r
2169AsciiStrToUnicodeStr (\r
17f695ed 2170 IN CONST CHAR8 *Source,\r
2171 OUT CHAR16 *Destination\r
ac644614 2172 );\r
2173\r
415aa2f1
SZ
2174#endif\r
2175\r
3ab41b7a
JY
2176/**\r
2177 Convert one Null-terminated ASCII string to a Null-terminated\r
2178 Unicode string.\r
2179\r
2180 This function is similar to StrCpyS.\r
2181\r
2182 This function converts the contents of the ASCII string Source to the Unicode\r
2183 string Destination. The function terminates the Unicode string Destination by\r
2184 appending a Null-terminator character at the end.\r
2185\r
2186 The caller is responsible to make sure Destination points to a buffer with size\r
2187 equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes.\r
2188\r
2189 If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
2190 If an error would be returned, then the function will also ASSERT().\r
2191\r
2192 If an error is returned, then the Destination is unmodified.\r
2193\r
2194 @param Source The pointer to a Null-terminated ASCII string.\r
2195 @param Destination The pointer to a Null-terminated Unicode string.\r
2196 @param DestMax The maximum number of Destination Unicode\r
2197 char, including terminating null char.\r
2198\r
2199 @retval RETURN_SUCCESS String is converted.\r
2200 @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r
2201 @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
2202 If Source is NULL.\r
2203 If PcdMaximumUnicodeStringLength is not zero,\r
2204 and DestMax is greater than\r
2205 PcdMaximumUnicodeStringLength.\r
2206 If PcdMaximumAsciiStringLength is not zero,\r
2207 and DestMax is greater than\r
2208 PcdMaximumAsciiStringLength.\r
2209 If DestMax is 0.\r
2210 @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
2211\r
2212**/\r
2213RETURN_STATUS\r
2214EFIAPI\r
2215AsciiStrToUnicodeStrS (\r
2216 IN CONST CHAR8 *Source,\r
2217 OUT CHAR16 *Destination,\r
2218 IN UINTN DestMax\r
2219 );\r
ac644614 2220\r
2221/**\r
2222 Converts an 8-bit value to an 8-bit BCD value.\r
2223\r
2224 Converts the 8-bit value specified by Value to BCD. The BCD value is\r
2225 returned.\r
2226\r
2227 If Value >= 100, then ASSERT().\r
2228\r
2229 @param Value The 8-bit value to convert to BCD. Range 0..99.\r
2230\r
9aa049d9 2231 @return The BCD value.\r
ac644614 2232\r
2233**/\r
2234UINT8\r
2235EFIAPI\r
2236DecimalToBcd8 (\r
2237 IN UINT8 Value\r
2238 );\r
2239\r
2240\r
2241/**\r
2242 Converts an 8-bit BCD value to an 8-bit value.\r
2243\r
2244 Converts the 8-bit BCD value specified by Value to an 8-bit value. The 8-bit\r
2245 value is returned.\r
2246\r
2247 If Value >= 0xA0, then ASSERT().\r
2248 If (Value & 0x0F) >= 0x0A, then ASSERT().\r
2249\r
2250 @param Value The 8-bit BCD value to convert to an 8-bit value.\r
2251\r
2252 @return The 8-bit value is returned.\r
2253\r
2254**/\r
2255UINT8\r
2256EFIAPI\r
2257BcdToDecimal8 (\r
2258 IN UINT8 Value\r
2259 );\r
2260\r
ae591c14
DM
2261//\r
2262// File Path Manipulation Functions\r
2263//\r
2264\r
2265/**\r
6a623094 2266 Removes the last directory or file entry in a path.\r
ae591c14
DM
2267\r
2268 @param[in, out] Path The pointer to the path to modify.\r
2269\r
2270 @retval FALSE Nothing was found to remove.\r
2271 @retval TRUE A directory or file was removed.\r
2272**/\r
2273BOOLEAN\r
2274EFIAPI\r
2275PathRemoveLastItem(\r
2276 IN OUT CHAR16 *Path\r
2277 );\r
2278\r
2279/**\r
2280 Function to clean up paths.\r
2281 - Single periods in the path are removed.\r
2282 - Double periods in the path are removed along with a single parent directory.\r
2283 - Forward slashes L'/' are converted to backward slashes L'\'.\r
2284\r
2285 This will be done inline and the existing buffer may be larger than required\r
2286 upon completion.\r
2287\r
2288 @param[in] Path The pointer to the string containing the path.\r
2289\r
00b7cc0f 2290 @return Returns Path, otherwise returns NULL to indicate that an error has occurred.\r
ae591c14
DM
2291**/\r
2292CHAR16*\r
2293EFIAPI\r
2294PathCleanUpDirectories(\r
2295 IN CHAR16 *Path\r
909ac47b 2296 );\r
ac644614 2297\r
2298//\r
2299// Linked List Functions and Macros\r
2300//\r
2301\r
2302/**\r
2303 Initializes the head node of a doubly linked list that is declared as a\r
2304 global variable in a module.\r
2305\r
2306 Initializes the forward and backward links of a new linked list. After\r
2307 initializing a linked list with this macro, the other linked list functions\r
2308 may be used to add and remove nodes from the linked list. This macro results\r
2309 in smaller executables by initializing the linked list in the data section,\r
2310 instead if calling the InitializeListHead() function to perform the\r
2311 equivalent operation.\r
2312\r
77f863ee 2313 @param ListHead The head note of a list to initialize.\r
ac644614 2314\r
2315**/\r
17f695ed 2316#define INITIALIZE_LIST_HEAD_VARIABLE(ListHead) {&(ListHead), &(ListHead)}\r
ac644614 2317\r
2318\r
2319/**\r
2320 Initializes the head node of a doubly linked list, and returns the pointer to\r
2321 the head node of the doubly linked list.\r
2322\r
2323 Initializes the forward and backward links of a new linked list. After\r
2324 initializing a linked list with this function, the other linked list\r
2325 functions may be used to add and remove nodes from the linked list. It is up\r
2326 to the caller of this function to allocate the memory for ListHead.\r
2327\r
2328 If ListHead is NULL, then ASSERT().\r
2329\r
2330 @param ListHead A pointer to the head node of a new doubly linked list.\r
2331\r
2332 @return ListHead\r
2333\r
2334**/\r
2335LIST_ENTRY *\r
2336EFIAPI\r
2337InitializeListHead (\r
aa0583c7 2338 IN OUT LIST_ENTRY *ListHead\r
ac644614 2339 );\r
2340\r
2341\r
2342/**\r
2343 Adds a node to the beginning of a doubly linked list, and returns the pointer\r
2344 to the head node of the doubly linked list.\r
2345\r
2346 Adds the node Entry at the beginning of the doubly linked list denoted by\r
2347 ListHead, and returns ListHead.\r
2348\r
2349 If ListHead is NULL, then ASSERT().\r
2350 If Entry is NULL, then ASSERT().\r
17f695ed 2351 If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
2352 InitializeListHead(), then ASSERT().\r
a71865b1 2353 If PcdMaximumLinkedListLength is not zero, and prior to insertion the number\r
ac644614 2354 of nodes in ListHead, including the ListHead node, is greater than or\r
2355 equal to PcdMaximumLinkedListLength, then ASSERT().\r
2356\r
2357 @param ListHead A pointer to the head node of a doubly linked list.\r
2358 @param Entry A pointer to a node that is to be inserted at the beginning\r
2359 of a doubly linked list.\r
2360\r
2361 @return ListHead\r
2362\r
2363**/\r
2364LIST_ENTRY *\r
2365EFIAPI\r
2366InsertHeadList (\r
aa0583c7 2367 IN OUT LIST_ENTRY *ListHead,\r
2368 IN OUT LIST_ENTRY *Entry\r
ac644614 2369 );\r
2370\r
2371\r
2372/**\r
2373 Adds a node to the end of a doubly linked list, and returns the pointer to\r
2374 the head node of the doubly linked list.\r
2375\r
2376 Adds the node Entry to the end of the doubly linked list denoted by ListHead,\r
2377 and returns ListHead.\r
2378\r
2379 If ListHead is NULL, then ASSERT().\r
2380 If Entry is NULL, then ASSERT().\r
17f695ed 2381 If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
2382 InitializeListHead(), then ASSERT().\r
a71865b1 2383 If PcdMaximumLinkedListLength is not zero, and prior to insertion the number\r
ac644614 2384 of nodes in ListHead, including the ListHead node, is greater than or\r
2385 equal to PcdMaximumLinkedListLength, then ASSERT().\r
2386\r
2387 @param ListHead A pointer to the head node of a doubly linked list.\r
2388 @param Entry A pointer to a node that is to be added at the end of the\r
2389 doubly linked list.\r
2390\r
2391 @return ListHead\r
2392\r
2393**/\r
2394LIST_ENTRY *\r
2395EFIAPI\r
2396InsertTailList (\r
aa0583c7 2397 IN OUT LIST_ENTRY *ListHead,\r
2398 IN OUT LIST_ENTRY *Entry\r
ac644614 2399 );\r
2400\r
2401\r
2402/**\r
2403 Retrieves the first node of a doubly linked list.\r
2404\r
17f695ed 2405 Returns the first node of a doubly linked list. List must have been \r
2406 initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
2407 If List is empty, then List is returned.\r
ac644614 2408\r
2409 If List is NULL, then ASSERT().\r
17f695ed 2410 If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
2411 InitializeListHead(), then ASSERT().\r
a71865b1 2412 If PcdMaximumLinkedListLength is not zero, and the number of nodes\r
ac644614 2413 in List, including the List node, is greater than or equal to\r
2414 PcdMaximumLinkedListLength, then ASSERT().\r
2415\r
2416 @param List A pointer to the head node of a doubly linked list.\r
2417\r
2418 @return The first node of a doubly linked list.\r
e01a125f 2419 @retval List The list is empty.\r
ac644614 2420\r
2421**/\r
2422LIST_ENTRY *\r
2423EFIAPI\r
2424GetFirstNode (\r
2425 IN CONST LIST_ENTRY *List\r
2426 );\r
2427\r
2428\r
2429/**\r
2430 Retrieves the next node of a doubly linked list.\r
2431\r
17f695ed 2432 Returns the node of a doubly linked list that follows Node. \r
2433 List must have been initialized with INTIALIZE_LIST_HEAD_VARIABLE()\r
2434 or InitializeListHead(). If List is empty, then List is returned.\r
ac644614 2435\r
2436 If List is NULL, then ASSERT().\r
2437 If Node is NULL, then ASSERT().\r
17f695ed 2438 If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
2439 InitializeListHead(), then ASSERT().\r
a71865b1
LG
2440 If PcdMaximumLinkedListLength is not zero, and List contains more than\r
2441 PcdMaximumLinkedListLength nodes, then ASSERT().\r
1081f624 2442 If PcdVerifyNodeInList is TRUE and Node is not a node in List, then ASSERT().\r
ac644614 2443\r
2444 @param List A pointer to the head node of a doubly linked list.\r
2445 @param Node A pointer to a node in the doubly linked list.\r
2446\r
af2dc6a7 2447 @return The pointer to the next node if one exists. Otherwise List is returned.\r
ac644614 2448\r
2449**/\r
2450LIST_ENTRY *\r
2451EFIAPI\r
2452GetNextNode (\r
2453 IN CONST LIST_ENTRY *List,\r
2454 IN CONST LIST_ENTRY *Node\r
2455 );\r
2456\r
cbca8de5 2457 \r
2458/**\r
2459 Retrieves the previous node of a doubly linked list.\r
2460 \r
2461 Returns the node of a doubly linked list that precedes Node. \r
2462 List must have been initialized with INTIALIZE_LIST_HEAD_VARIABLE()\r
2463 or InitializeListHead(). If List is empty, then List is returned.\r
2464 \r
2465 If List is NULL, then ASSERT().\r
2466 If Node is NULL, then ASSERT().\r
2467 If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
2468 InitializeListHead(), then ASSERT().\r
a71865b1
LG
2469 If PcdMaximumLinkedListLength is not zero, and List contains more than\r
2470 PcdMaximumLinkedListLength nodes, then ASSERT().\r
cbca8de5 2471 If PcdVerifyNodeInList is TRUE and Node is not a node in List, then ASSERT().\r
2472 \r
2473 @param List A pointer to the head node of a doubly linked list.\r
2474 @param Node A pointer to a node in the doubly linked list.\r
2475 \r
af2dc6a7 2476 @return The pointer to the previous node if one exists. Otherwise List is returned.\r
cbca8de5 2477 \r
2478**/\r
2479LIST_ENTRY *\r
2480EFIAPI\r
2481GetPreviousNode (\r
2482 IN CONST LIST_ENTRY *List,\r
2483 IN CONST LIST_ENTRY *Node\r
2484 );\r
ac644614 2485\r
cbca8de5 2486 \r
ac644614 2487/**\r
2488 Checks to see if a doubly linked list is empty or not.\r
2489\r
2490 Checks to see if the doubly linked list is empty. If the linked list contains\r
2491 zero nodes, this function returns TRUE. Otherwise, it returns FALSE.\r
2492\r
2493 If ListHead is NULL, then ASSERT().\r
17f695ed 2494 If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
2495 InitializeListHead(), then ASSERT().\r
a71865b1 2496 If PcdMaximumLinkedListLength is not zero, and the number of nodes\r
ac644614 2497 in List, including the List node, is greater than or equal to\r
2498 PcdMaximumLinkedListLength, then ASSERT().\r
2499\r
2500 @param ListHead A pointer to the head node of a doubly linked list.\r
2501\r
2502 @retval TRUE The linked list is empty.\r
2503 @retval FALSE The linked list is not empty.\r
2504\r
2505**/\r
2506BOOLEAN\r
2507EFIAPI\r
2508IsListEmpty (\r
2509 IN CONST LIST_ENTRY *ListHead\r
2510 );\r
2511\r
2512\r
2513/**\r
aa0583c7 2514 Determines if a node in a doubly linked list is the head node of a the same\r
2515 doubly linked list. This function is typically used to terminate a loop that\r
2516 traverses all the nodes in a doubly linked list starting with the head node.\r
ac644614 2517\r
aa0583c7 2518 Returns TRUE if Node is equal to List. Returns FALSE if Node is one of the\r
2519 nodes in the doubly linked list specified by List. List must have been\r
17f695ed 2520 initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
ac644614 2521\r
2522 If List is NULL, then ASSERT().\r
2523 If Node is NULL, then ASSERT().\r
17f695ed 2524 If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead(), \r
2525 then ASSERT().\r
a71865b1 2526 If PcdMaximumLinkedListLength is not zero, and the number of nodes\r
ac644614 2527 in List, including the List node, is greater than or equal to\r
2528 PcdMaximumLinkedListLength, then ASSERT().\r
1081f624 2529 If PcdVerifyNodeInList is TRUE and Node is not a node in List the and Node is not equal \r
2530 to List, then ASSERT().\r
ac644614 2531\r
2532 @param List A pointer to the head node of a doubly linked list.\r
2533 @param Node A pointer to a node in the doubly linked list.\r
2534\r
1955808d
LG
2535 @retval TRUE Node is the head of the doubly-linked list pointed by List.\r
2536 @retval FALSE Node is not the head of the doubly-linked list pointed by List.\r
ac644614 2537\r
2538**/\r
2539BOOLEAN\r
2540EFIAPI\r
2541IsNull (\r
2542 IN CONST LIST_ENTRY *List,\r
2543 IN CONST LIST_ENTRY *Node\r
2544 );\r
2545\r
2546\r
2547/**\r
2548 Determines if a node the last node in a doubly linked list.\r
2549\r
2550 Returns TRUE if Node is the last node in the doubly linked list specified by\r
2551 List. Otherwise, FALSE is returned. List must have been initialized with\r
17f695ed 2552 INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
ac644614 2553\r
2554 If List is NULL, then ASSERT().\r
2555 If Node is NULL, then ASSERT().\r
17f695ed 2556 If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
2557 InitializeListHead(), then ASSERT().\r
a71865b1 2558 If PcdMaximumLinkedListLength is not zero, and the number of nodes\r
ac644614 2559 in List, including the List node, is greater than or equal to\r
2560 PcdMaximumLinkedListLength, then ASSERT().\r
1081f624 2561 If PcdVerifyNodeInList is TRUE and Node is not a node in List, then ASSERT().\r
ac644614 2562\r
2563 @param List A pointer to the head node of a doubly linked list.\r
2564 @param Node A pointer to a node in the doubly linked list.\r
2565\r
2566 @retval TRUE Node is the last node in the linked list.\r
2567 @retval FALSE Node is not the last node in the linked list.\r
2568\r
2569**/\r
2570BOOLEAN\r
2571EFIAPI\r
2572IsNodeAtEnd (\r
2573 IN CONST LIST_ENTRY *List,\r
2574 IN CONST LIST_ENTRY *Node\r
2575 );\r
2576\r
2577\r
2578/**\r
2579 Swaps the location of two nodes in a doubly linked list, and returns the\r
2580 first node after the swap.\r
2581\r
2582 If FirstEntry is identical to SecondEntry, then SecondEntry is returned.\r
2583 Otherwise, the location of the FirstEntry node is swapped with the location\r
2584 of the SecondEntry node in a doubly linked list. SecondEntry must be in the\r
2585 same double linked list as FirstEntry and that double linked list must have\r
17f695ed 2586 been initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead(). \r
2587 SecondEntry is returned after the nodes are swapped.\r
ac644614 2588\r
2589 If FirstEntry is NULL, then ASSERT().\r
2590 If SecondEntry is NULL, then ASSERT().\r
1081f624 2591 If PcdVerifyNodeInList is TRUE and SecondEntry and FirstEntry are not in the \r
2592 same linked list, then ASSERT().\r
ac644614 2593 If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
2594 linked list containing the FirstEntry and SecondEntry nodes, including\r
2595 the FirstEntry and SecondEntry nodes, is greater than or equal to\r
2596 PcdMaximumLinkedListLength, then ASSERT().\r
2597\r
2598 @param FirstEntry A pointer to a node in a linked list.\r
2599 @param SecondEntry A pointer to another node in the same linked list.\r
38bbd3d9 2600 \r
9aa049d9 2601 @return SecondEntry.\r
ac644614 2602\r
2603**/\r
2604LIST_ENTRY *\r
2605EFIAPI\r
2606SwapListEntries (\r
aa0583c7 2607 IN OUT LIST_ENTRY *FirstEntry,\r
2608 IN OUT LIST_ENTRY *SecondEntry\r
ac644614 2609 );\r
2610\r
2611\r
2612/**\r
2613 Removes a node from a doubly linked list, and returns the node that follows\r
2614 the removed node.\r
2615\r
2616 Removes the node Entry from a doubly linked list. It is up to the caller of\r
2617 this function to release the memory used by this node if that is required. On\r
2618 exit, the node following Entry in the doubly linked list is returned. If\r
2619 Entry is the only node in the linked list, then the head node of the linked\r
2620 list is returned.\r
2621\r
2622 If Entry is NULL, then ASSERT().\r
2623 If Entry is the head node of an empty list, then ASSERT().\r
2624 If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
2625 linked list containing Entry, including the Entry node, is greater than\r
2626 or equal to PcdMaximumLinkedListLength, then ASSERT().\r
2627\r
9aa049d9 2628 @param Entry A pointer to a node in a linked list.\r
ac644614 2629\r
9aa049d9 2630 @return Entry.\r
ac644614 2631\r
2632**/\r
2633LIST_ENTRY *\r
2634EFIAPI\r
2635RemoveEntryList (\r
2636 IN CONST LIST_ENTRY *Entry\r
2637 );\r
2638\r
2639//\r
2640// Math Services\r
2641//\r
2642\r
2643/**\r
2644 Shifts a 64-bit integer left between 0 and 63 bits. The low bits are filled\r
2645 with zeros. The shifted value is returned.\r
2646\r
2647 This function shifts the 64-bit value Operand to the left by Count bits. The\r
2648 low Count bits are set to zero. The shifted value is returned.\r
2649\r
2650 If Count is greater than 63, then ASSERT().\r
2651\r
2652 @param Operand The 64-bit operand to shift left.\r
2653 @param Count The number of bits to shift left.\r
2654\r
9aa049d9 2655 @return Operand << Count.\r
ac644614 2656\r
2657**/\r
2658UINT64\r
2659EFIAPI\r
2660LShiftU64 (\r
2661 IN UINT64 Operand,\r
2662 IN UINTN Count\r
2663 );\r
2664\r
2665\r
2666/**\r
2667 Shifts a 64-bit integer right between 0 and 63 bits. This high bits are\r
2668 filled with zeros. The shifted value is returned.\r
2669\r
2670 This function shifts the 64-bit value Operand to the right by Count bits. The\r
2671 high Count bits are set to zero. The shifted value is returned.\r
2672\r
2673 If Count is greater than 63, then ASSERT().\r
2674\r
2675 @param Operand The 64-bit operand to shift right.\r
2676 @param Count The number of bits to shift right.\r
2677\r
2678 @return Operand >> Count\r
2679\r
2680**/\r
2681UINT64\r
2682EFIAPI\r
2683RShiftU64 (\r
2684 IN UINT64 Operand,\r
2685 IN UINTN Count\r
2686 );\r
2687\r
2688\r
2689/**\r
2690 Shifts a 64-bit integer right between 0 and 63 bits. The high bits are filled\r
2691 with original integer's bit 63. The shifted value is returned.\r
2692\r
2693 This function shifts the 64-bit value Operand to the right by Count bits. The\r
2694 high Count bits are set to bit 63 of Operand. The shifted value is returned.\r
2695\r
2696 If Count is greater than 63, then ASSERT().\r
2697\r
2698 @param Operand The 64-bit operand to shift right.\r
2699 @param Count The number of bits to shift right.\r
2700\r
2701 @return Operand >> Count\r
2702\r
2703**/\r
2704UINT64\r
2705EFIAPI\r
2706ARShiftU64 (\r
2707 IN UINT64 Operand,\r
2708 IN UINTN Count\r
2709 );\r
2710\r
2711\r
2712/**\r
2713 Rotates a 32-bit integer left between 0 and 31 bits, filling the low bits\r
2714 with the high bits that were rotated.\r
2715\r
2716 This function rotates the 32-bit value Operand to the left by Count bits. The\r
2717 low Count bits are fill with the high Count bits of Operand. The rotated\r
2718 value is returned.\r
2719\r
2720 If Count is greater than 31, then ASSERT().\r
2721\r
2722 @param Operand The 32-bit operand to rotate left.\r
2723 @param Count The number of bits to rotate left.\r
2724\r
17f695ed 2725 @return Operand << Count\r
ac644614 2726\r
2727**/\r
2728UINT32\r
2729EFIAPI\r
2730LRotU32 (\r
2731 IN UINT32 Operand,\r
2732 IN UINTN Count\r
2733 );\r
2734\r
2735\r
2736/**\r
2737 Rotates a 32-bit integer right between 0 and 31 bits, filling the high bits\r
2738 with the low bits that were rotated.\r
2739\r
2740 This function rotates the 32-bit value Operand to the right by Count bits.\r
2741 The high Count bits are fill with the low Count bits of Operand. The rotated\r
2742 value is returned.\r
2743\r
2744 If Count is greater than 31, then ASSERT().\r
2745\r
2746 @param Operand The 32-bit operand to rotate right.\r
2747 @param Count The number of bits to rotate right.\r
2748\r
2fe241a2 2749 @return Operand >> Count\r
ac644614 2750\r
2751**/\r
2752UINT32\r
2753EFIAPI\r
2754RRotU32 (\r
2755 IN UINT32 Operand,\r
2756 IN UINTN Count\r
2757 );\r
2758\r
2759\r
2760/**\r
2761 Rotates a 64-bit integer left between 0 and 63 bits, filling the low bits\r
2762 with the high bits that were rotated.\r
2763\r
2764 This function rotates the 64-bit value Operand to the left by Count bits. The\r
2765 low Count bits are fill with the high Count bits of Operand. The rotated\r
2766 value is returned.\r
2767\r
2768 If Count is greater than 63, then ASSERT().\r
2769\r
2770 @param Operand The 64-bit operand to rotate left.\r
2771 @param Count The number of bits to rotate left.\r
2772\r
17f695ed 2773 @return Operand << Count\r
ac644614 2774\r
2775**/\r
2776UINT64\r
2777EFIAPI\r
2778LRotU64 (\r
2779 IN UINT64 Operand,\r
2780 IN UINTN Count\r
2781 );\r
2782\r
2783\r
2784/**\r
2785 Rotates a 64-bit integer right between 0 and 63 bits, filling the high bits\r
2786 with the high low bits that were rotated.\r
2787\r
2788 This function rotates the 64-bit value Operand to the right by Count bits.\r
2789 The high Count bits are fill with the low Count bits of Operand. The rotated\r
2790 value is returned.\r
2791\r
2792 If Count is greater than 63, then ASSERT().\r
2793\r
2794 @param Operand The 64-bit operand to rotate right.\r
2795 @param Count The number of bits to rotate right.\r
2796\r
17f695ed 2797 @return Operand >> Count\r
ac644614 2798\r
2799**/\r
2800UINT64\r
2801EFIAPI\r
2802RRotU64 (\r
2803 IN UINT64 Operand,\r
2804 IN UINTN Count\r
2805 );\r
2806\r
2807\r
2808/**\r
2809 Returns the bit position of the lowest bit set in a 32-bit value.\r
2810\r
2811 This function computes the bit position of the lowest bit set in the 32-bit\r
2812 value specified by Operand. If Operand is zero, then -1 is returned.\r
2813 Otherwise, a value between 0 and 31 is returned.\r
2814\r
2815 @param Operand The 32-bit operand to evaluate.\r
2816\r
9aa049d9 2817 @retval 0..31 The lowest bit set in Operand was found.\r
17f695ed 2818 @retval -1 Operand is zero.\r
ac644614 2819\r
2820**/\r
2821INTN\r
2822EFIAPI\r
2823LowBitSet32 (\r
2824 IN UINT32 Operand\r
2825 );\r
2826\r
2827\r
2828/**\r
2829 Returns the bit position of the lowest bit set in a 64-bit value.\r
2830\r
2831 This function computes the bit position of the lowest bit set in the 64-bit\r
2832 value specified by Operand. If Operand is zero, then -1 is returned.\r
2833 Otherwise, a value between 0 and 63 is returned.\r
2834\r
2835 @param Operand The 64-bit operand to evaluate.\r
2836\r
9aa049d9 2837 @retval 0..63 The lowest bit set in Operand was found.\r
17f695ed 2838 @retval -1 Operand is zero.\r
2839\r
ac644614 2840\r
2841**/\r
2842INTN\r
2843EFIAPI\r
2844LowBitSet64 (\r
2845 IN UINT64 Operand\r
2846 );\r
2847\r
2848\r
2849/**\r
2850 Returns the bit position of the highest bit set in a 32-bit value. Equivalent\r
2851 to log2(x).\r
2852\r
2853 This function computes the bit position of the highest bit set in the 32-bit\r
2854 value specified by Operand. If Operand is zero, then -1 is returned.\r
2855 Otherwise, a value between 0 and 31 is returned.\r
2856\r
2857 @param Operand The 32-bit operand to evaluate.\r
2858\r
9aa049d9 2859 @retval 0..31 Position of the highest bit set in Operand if found.\r
17f695ed 2860 @retval -1 Operand is zero.\r
ac644614 2861\r
2862**/\r
2863INTN\r
2864EFIAPI\r
2865HighBitSet32 (\r
2866 IN UINT32 Operand\r
2867 );\r
2868\r
2869\r
2870/**\r
2871 Returns the bit position of the highest bit set in a 64-bit value. Equivalent\r
2872 to log2(x).\r
2873\r
2874 This function computes the bit position of the highest bit set in the 64-bit\r
2875 value specified by Operand. If Operand is zero, then -1 is returned.\r
2876 Otherwise, a value between 0 and 63 is returned.\r
2877\r
2878 @param Operand The 64-bit operand to evaluate.\r
2879\r
9aa049d9 2880 @retval 0..63 Position of the highest bit set in Operand if found.\r
17f695ed 2881 @retval -1 Operand is zero.\r
ac644614 2882\r
2883**/\r
2884INTN\r
2885EFIAPI\r
2886HighBitSet64 (\r
2887 IN UINT64 Operand\r
2888 );\r
2889\r
2890\r
2891/**\r
2892 Returns the value of the highest bit set in a 32-bit value. Equivalent to\r
17f695ed 2893 1 << log2(x).\r
ac644614 2894\r
2895 This function computes the value of the highest bit set in the 32-bit value\r
2896 specified by Operand. If Operand is zero, then zero is returned.\r
2897\r
2898 @param Operand The 32-bit operand to evaluate.\r
2899\r
2900 @return 1 << HighBitSet32(Operand)\r
2901 @retval 0 Operand is zero.\r
2902\r
2903**/\r
2904UINT32\r
2905EFIAPI\r
2906GetPowerOfTwo32 (\r
2907 IN UINT32 Operand\r
2908 );\r
2909\r
2910\r
2911/**\r
2912 Returns the value of the highest bit set in a 64-bit value. Equivalent to\r
17f695ed 2913 1 << log2(x).\r
ac644614 2914\r
2915 This function computes the value of the highest bit set in the 64-bit value\r
2916 specified by Operand. If Operand is zero, then zero is returned.\r
2917\r
2918 @param Operand The 64-bit operand to evaluate.\r
2919\r
2920 @return 1 << HighBitSet64(Operand)\r
2921 @retval 0 Operand is zero.\r
2922\r
2923**/\r
2924UINT64\r
2925EFIAPI\r
2926GetPowerOfTwo64 (\r
2927 IN UINT64 Operand\r
2928 );\r
2929\r
2930\r
2931/**\r
af2dc6a7 2932 Switches the endianness of a 16-bit integer.\r
ac644614 2933\r
2934 This function swaps the bytes in a 16-bit unsigned value to switch the value\r
2935 from little endian to big endian or vice versa. The byte swapped value is\r
2936 returned.\r
2937\r
2a53dabf 2938 @param Value A 16-bit unsigned value.\r
ac644614 2939\r
efb23117 2940 @return The byte swapped Value.\r
ac644614 2941\r
2942**/\r
2943UINT16\r
2944EFIAPI\r
2945SwapBytes16 (\r
2946 IN UINT16 Value\r
2947 );\r
2948\r
2949\r
2950/**\r
af2dc6a7 2951 Switches the endianness of a 32-bit integer.\r
ac644614 2952\r
2953 This function swaps the bytes in a 32-bit unsigned value to switch the value\r
2954 from little endian to big endian or vice versa. The byte swapped value is\r
2955 returned.\r
2956\r
2a53dabf 2957 @param Value A 32-bit unsigned value.\r
ac644614 2958\r
efb23117 2959 @return The byte swapped Value.\r
ac644614 2960\r
2961**/\r
2962UINT32\r
2963EFIAPI\r
2964SwapBytes32 (\r
2965 IN UINT32 Value\r
2966 );\r
2967\r
2968\r
2969/**\r
af2dc6a7 2970 Switches the endianness of a 64-bit integer.\r
ac644614 2971\r
2972 This function swaps the bytes in a 64-bit unsigned value to switch the value\r
2973 from little endian to big endian or vice versa. The byte swapped value is\r
2974 returned.\r
2975\r
2a53dabf 2976 @param Value A 64-bit unsigned value.\r
ac644614 2977\r
efb23117 2978 @return The byte swapped Value.\r
ac644614 2979\r
2980**/\r
2981UINT64\r
2982EFIAPI\r
2983SwapBytes64 (\r
2984 IN UINT64 Value\r
2985 );\r
2986\r
2987\r
2988/**\r
2989 Multiples a 64-bit unsigned integer by a 32-bit unsigned integer and\r
2990 generates a 64-bit unsigned result.\r
2991\r
2992 This function multiples the 64-bit unsigned value Multiplicand by the 32-bit\r
2993 unsigned value Multiplier and generates a 64-bit unsigned result. This 64-\r
2994 bit unsigned result is returned.\r
2995\r
ac644614 2996 @param Multiplicand A 64-bit unsigned value.\r
2997 @param Multiplier A 32-bit unsigned value.\r
2998\r
2999 @return Multiplicand * Multiplier\r
3000\r
3001**/\r
3002UINT64\r
3003EFIAPI\r
3004MultU64x32 (\r
3005 IN UINT64 Multiplicand,\r
3006 IN UINT32 Multiplier\r
3007 );\r
3008\r
3009\r
3010/**\r
3011 Multiples a 64-bit unsigned integer by a 64-bit unsigned integer and\r
3012 generates a 64-bit unsigned result.\r
3013\r
3014 This function multiples the 64-bit unsigned value Multiplicand by the 64-bit\r
3015 unsigned value Multiplier and generates a 64-bit unsigned result. This 64-\r
3016 bit unsigned result is returned.\r
3017\r
ac644614 3018 @param Multiplicand A 64-bit unsigned value.\r
3019 @param Multiplier A 64-bit unsigned value.\r
3020\r
af2dc6a7 3021 @return Multiplicand * Multiplier.\r
ac644614 3022\r
3023**/\r
3024UINT64\r
3025EFIAPI\r
3026MultU64x64 (\r
3027 IN UINT64 Multiplicand,\r
3028 IN UINT64 Multiplier\r
3029 );\r
3030\r
3031\r
3032/**\r
3033 Multiples a 64-bit signed integer by a 64-bit signed integer and generates a\r
3034 64-bit signed result.\r
3035\r
3036 This function multiples the 64-bit signed value Multiplicand by the 64-bit\r
3037 signed value Multiplier and generates a 64-bit signed result. This 64-bit\r
3038 signed result is returned.\r
3039\r
ac644614 3040 @param Multiplicand A 64-bit signed value.\r
3041 @param Multiplier A 64-bit signed value.\r
3042\r
3043 @return Multiplicand * Multiplier\r
3044\r
3045**/\r
3046INT64\r
3047EFIAPI\r
3048MultS64x64 (\r
3049 IN INT64 Multiplicand,\r
3050 IN INT64 Multiplier\r
3051 );\r
3052\r
3053\r
3054/**\r
3055 Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
3056 a 64-bit unsigned result.\r
3057\r
3058 This function divides the 64-bit unsigned value Dividend by the 32-bit\r
3059 unsigned value Divisor and generates a 64-bit unsigned quotient. This\r
3060 function returns the 64-bit unsigned quotient.\r
3061\r
3062 If Divisor is 0, then ASSERT().\r
3063\r
3064 @param Dividend A 64-bit unsigned value.\r
3065 @param Divisor A 32-bit unsigned value.\r
3066\r
af2dc6a7 3067 @return Dividend / Divisor.\r
ac644614 3068\r
3069**/\r
3070UINT64\r
3071EFIAPI\r
3072DivU64x32 (\r
3073 IN UINT64 Dividend,\r
3074 IN UINT32 Divisor\r
3075 );\r
3076\r
3077\r
3078/**\r
3079 Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
3080 a 32-bit unsigned remainder.\r
3081\r
3082 This function divides the 64-bit unsigned value Dividend by the 32-bit\r
3083 unsigned value Divisor and generates a 32-bit remainder. This function\r
3084 returns the 32-bit unsigned remainder.\r
3085\r
3086 If Divisor is 0, then ASSERT().\r
3087\r
3088 @param Dividend A 64-bit unsigned value.\r
3089 @param Divisor A 32-bit unsigned value.\r
3090\r
af2dc6a7 3091 @return Dividend % Divisor.\r
ac644614 3092\r
3093**/\r
3094UINT32\r
3095EFIAPI\r
3096ModU64x32 (\r
3097 IN UINT64 Dividend,\r
3098 IN UINT32 Divisor\r
3099 );\r
3100\r
3101\r
3102/**\r
3103 Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
3104 a 64-bit unsigned result and an optional 32-bit unsigned remainder.\r
3105\r
3106 This function divides the 64-bit unsigned value Dividend by the 32-bit\r
3107 unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder\r
3108 is not NULL, then the 32-bit unsigned remainder is returned in Remainder.\r
3109 This function returns the 64-bit unsigned quotient.\r
3110\r
3111 If Divisor is 0, then ASSERT().\r
3112\r
3113 @param Dividend A 64-bit unsigned value.\r
3114 @param Divisor A 32-bit unsigned value.\r
3115 @param Remainder A pointer to a 32-bit unsigned value. This parameter is\r
3116 optional and may be NULL.\r
3117\r
af2dc6a7 3118 @return Dividend / Divisor.\r
ac644614 3119\r
3120**/\r
3121UINT64\r
3122EFIAPI\r
3123DivU64x32Remainder (\r
3124 IN UINT64 Dividend,\r
3125 IN UINT32 Divisor,\r
3126 OUT UINT32 *Remainder OPTIONAL\r
3127 );\r
3128\r
3129\r
3130/**\r
3131 Divides a 64-bit unsigned integer by a 64-bit unsigned integer and generates\r
3132 a 64-bit unsigned result and an optional 64-bit unsigned remainder.\r
3133\r
3134 This function divides the 64-bit unsigned value Dividend by the 64-bit\r
3135 unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder\r
3136 is not NULL, then the 64-bit unsigned remainder is returned in Remainder.\r
3137 This function returns the 64-bit unsigned quotient.\r
3138\r
3139 If Divisor is 0, then ASSERT().\r
3140\r
3141 @param Dividend A 64-bit unsigned value.\r
3142 @param Divisor A 64-bit unsigned value.\r
3143 @param Remainder A pointer to a 64-bit unsigned value. This parameter is\r
3144 optional and may be NULL.\r
3145\r
af2dc6a7 3146 @return Dividend / Divisor.\r
ac644614 3147\r
3148**/\r
3149UINT64\r
3150EFIAPI\r
3151DivU64x64Remainder (\r
3152 IN UINT64 Dividend,\r
3153 IN UINT64 Divisor,\r
3154 OUT UINT64 *Remainder OPTIONAL\r
3155 );\r
3156\r
3157\r
3158/**\r
3159 Divides a 64-bit signed integer by a 64-bit signed integer and generates a\r
3160 64-bit signed result and a optional 64-bit signed remainder.\r
3161\r
3162 This function divides the 64-bit signed value Dividend by the 64-bit signed\r
3163 value Divisor and generates a 64-bit signed quotient. If Remainder is not\r
3164 NULL, then the 64-bit signed remainder is returned in Remainder. This\r
3165 function returns the 64-bit signed quotient.\r
3166\r
9aa049d9 3167 It is the caller's responsibility to not call this function with a Divisor of 0.\r
17f695ed 3168 If Divisor is 0, then the quotient and remainder should be assumed to be \r
3169 the largest negative integer.\r
3170\r
ac644614 3171 If Divisor is 0, then ASSERT().\r
3172\r
3173 @param Dividend A 64-bit signed value.\r
3174 @param Divisor A 64-bit signed value.\r
3175 @param Remainder A pointer to a 64-bit signed value. This parameter is\r
3176 optional and may be NULL.\r
3177\r
af2dc6a7 3178 @return Dividend / Divisor.\r
ac644614 3179\r
3180**/\r
3181INT64\r
3182EFIAPI\r
3183DivS64x64Remainder (\r
3184 IN INT64 Dividend,\r
3185 IN INT64 Divisor,\r
3186 OUT INT64 *Remainder OPTIONAL\r
3187 );\r
3188\r
3189\r
3190/**\r
3191 Reads a 16-bit value from memory that may be unaligned.\r
3192\r
3193 This function returns the 16-bit value pointed to by Buffer. The function\r
3194 guarantees that the read operation does not produce an alignment fault.\r
3195\r
3196 If the Buffer is NULL, then ASSERT().\r
3197\r
af2dc6a7 3198 @param Buffer The pointer to a 16-bit value that may be unaligned.\r
ac644614 3199\r
5385a579 3200 @return The 16-bit value read from Buffer.\r
ac644614 3201\r
3202**/\r
3203UINT16\r
3204EFIAPI\r
3205ReadUnaligned16 (\r
5385a579 3206 IN CONST UINT16 *Buffer\r
ac644614 3207 );\r
3208\r
3209\r
3210/**\r
3211 Writes a 16-bit value to memory that may be unaligned.\r
3212\r
3213 This function writes the 16-bit value specified by Value to Buffer. Value is\r
3214 returned. The function guarantees that the write operation does not produce\r
3215 an alignment fault.\r
3216\r
3217 If the Buffer is NULL, then ASSERT().\r
3218\r
af2dc6a7 3219 @param Buffer The pointer to a 16-bit value that may be unaligned.\r
ac644614 3220 @param Value 16-bit value to write to Buffer.\r
3221\r
5385a579 3222 @return The 16-bit value to write to Buffer.\r
ac644614 3223\r
3224**/\r
3225UINT16\r
3226EFIAPI\r
3227WriteUnaligned16 (\r
5385a579 3228 OUT UINT16 *Buffer,\r
3229 IN UINT16 Value\r
ac644614 3230 );\r
3231\r
3232\r
3233/**\r
3234 Reads a 24-bit value from memory that may be unaligned.\r
3235\r
3236 This function returns the 24-bit value pointed to by Buffer. The function\r
3237 guarantees that the read operation does not produce an alignment fault.\r
3238\r
3239 If the Buffer is NULL, then ASSERT().\r
3240\r
af2dc6a7 3241 @param Buffer The pointer to a 24-bit value that may be unaligned.\r
ac644614 3242\r
5385a579 3243 @return The 24-bit value read from Buffer.\r
ac644614 3244\r
3245**/\r
3246UINT32\r
3247EFIAPI\r
3248ReadUnaligned24 (\r
5385a579 3249 IN CONST UINT32 *Buffer\r
ac644614 3250 );\r
3251\r
3252\r
3253/**\r
3254 Writes a 24-bit value to memory that may be unaligned.\r
3255\r
3256 This function writes the 24-bit value specified by Value to Buffer. Value is\r
3257 returned. The function guarantees that the write operation does not produce\r
3258 an alignment fault.\r
3259\r
3260 If the Buffer is NULL, then ASSERT().\r
3261\r
af2dc6a7 3262 @param Buffer The pointer to a 24-bit value that may be unaligned.\r
ac644614 3263 @param Value 24-bit value to write to Buffer.\r
3264\r
5385a579 3265 @return The 24-bit value to write to Buffer.\r
ac644614 3266\r
3267**/\r
3268UINT32\r
3269EFIAPI\r
3270WriteUnaligned24 (\r
5385a579 3271 OUT UINT32 *Buffer,\r
3272 IN UINT32 Value\r
ac644614 3273 );\r
3274\r
3275\r
3276/**\r
3277 Reads a 32-bit value from memory that may be unaligned.\r
3278\r
3279 This function returns the 32-bit value pointed to by Buffer. The function\r
3280 guarantees that the read operation does not produce an alignment fault.\r
3281\r
3282 If the Buffer is NULL, then ASSERT().\r
3283\r
af2dc6a7 3284 @param Buffer The pointer to a 32-bit value that may be unaligned.\r
ac644614 3285\r
5385a579 3286 @return The 32-bit value read from Buffer.\r
ac644614 3287\r
3288**/\r
3289UINT32\r
3290EFIAPI\r
3291ReadUnaligned32 (\r
5385a579 3292 IN CONST UINT32 *Buffer\r
ac644614 3293 );\r
3294\r
3295\r
3296/**\r
3297 Writes a 32-bit value to memory that may be unaligned.\r
3298\r
3299 This function writes the 32-bit value specified by Value to Buffer. Value is\r
3300 returned. The function guarantees that the write operation does not produce\r
3301 an alignment fault.\r
3302\r
3303 If the Buffer is NULL, then ASSERT().\r
3304\r
af2dc6a7 3305 @param Buffer The pointer to a 32-bit value that may be unaligned.\r
ac644614 3306 @param Value 32-bit value to write to Buffer.\r
3307\r
5385a579 3308 @return The 32-bit value to write to Buffer.\r
ac644614 3309\r
3310**/\r
3311UINT32\r
3312EFIAPI\r
3313WriteUnaligned32 (\r
5385a579 3314 OUT UINT32 *Buffer,\r
3315 IN UINT32 Value\r
ac644614 3316 );\r
3317\r
3318\r
3319/**\r
3320 Reads a 64-bit value from memory that may be unaligned.\r
3321\r
3322 This function returns the 64-bit value pointed to by Buffer. The function\r
3323 guarantees that the read operation does not produce an alignment fault.\r
3324\r
3325 If the Buffer is NULL, then ASSERT().\r
3326\r
af2dc6a7 3327 @param Buffer The pointer to a 64-bit value that may be unaligned.\r
ac644614 3328\r
5385a579 3329 @return The 64-bit value read from Buffer.\r
ac644614 3330\r
3331**/\r
3332UINT64\r
3333EFIAPI\r
3334ReadUnaligned64 (\r
5385a579 3335 IN CONST UINT64 *Buffer\r
ac644614 3336 );\r
3337\r
3338\r
3339/**\r
3340 Writes a 64-bit value to memory that may be unaligned.\r
3341\r
3342 This function writes the 64-bit value specified by Value to Buffer. Value is\r
3343 returned. The function guarantees that the write operation does not produce\r
3344 an alignment fault.\r
3345\r
3346 If the Buffer is NULL, then ASSERT().\r
3347\r
af2dc6a7 3348 @param Buffer The pointer to a 64-bit value that may be unaligned.\r
ac644614 3349 @param Value 64-bit value to write to Buffer.\r
3350\r
5385a579 3351 @return The 64-bit value to write to Buffer.\r
ac644614 3352\r
3353**/\r
3354UINT64\r
3355EFIAPI\r
3356WriteUnaligned64 (\r
5385a579 3357 OUT UINT64 *Buffer,\r
3358 IN UINT64 Value\r
ac644614 3359 );\r
3360\r
3361\r
3362//\r
3363// Bit Field Functions\r
3364//\r
3365\r
3366/**\r
3367 Returns a bit field from an 8-bit value.\r
3368\r
3369 Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
3370\r
3371 If 8-bit operations are not supported, then ASSERT().\r
3372 If StartBit is greater than 7, then ASSERT().\r
3373 If EndBit is greater than 7, then ASSERT().\r
3374 If EndBit is less than StartBit, then ASSERT().\r
3375\r
3376 @param Operand Operand on which to perform the bitfield operation.\r
3377 @param StartBit The ordinal of the least significant bit in the bit field.\r
3378 Range 0..7.\r
3379 @param EndBit The ordinal of the most significant bit in the bit field.\r
3380 Range 0..7.\r
3381\r
3382 @return The bit field read.\r
3383\r
3384**/\r
3385UINT8\r
3386EFIAPI\r
3387BitFieldRead8 (\r
3388 IN UINT8 Operand,\r
3389 IN UINTN StartBit,\r
3390 IN UINTN EndBit\r
3391 );\r
3392\r
3393\r
3394/**\r
3395 Writes a bit field to an 8-bit value, and returns the result.\r
3396\r
3397 Writes Value to the bit field specified by the StartBit and the EndBit in\r
3398 Operand. All other bits in Operand are preserved. The new 8-bit value is\r
3399 returned.\r
3400\r
3401 If 8-bit operations are not supported, then ASSERT().\r
3402 If StartBit is greater than 7, then ASSERT().\r
3403 If EndBit is greater than 7, then ASSERT().\r
3404 If EndBit is less than StartBit, then ASSERT().\r
94952554 3405 If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3406\r
3407 @param Operand Operand on which to perform the bitfield operation.\r
3408 @param StartBit The ordinal of the least significant bit in the bit field.\r
3409 Range 0..7.\r
3410 @param EndBit The ordinal of the most significant bit in the bit field.\r
3411 Range 0..7.\r
3412 @param Value New value of the bit field.\r
3413\r
3414 @return The new 8-bit value.\r
3415\r
3416**/\r
3417UINT8\r
3418EFIAPI\r
3419BitFieldWrite8 (\r
3420 IN UINT8 Operand,\r
3421 IN UINTN StartBit,\r
3422 IN UINTN EndBit,\r
3423 IN UINT8 Value\r
3424 );\r
3425\r
3426\r
3427/**\r
3428 Reads a bit field from an 8-bit value, performs a bitwise OR, and returns the\r
3429 result.\r
3430\r
62991af2 3431 Performs a bitwise OR between the bit field specified by StartBit\r
ac644614 3432 and EndBit in Operand and the value specified by OrData. All other bits in\r
3433 Operand are preserved. The new 8-bit value is returned.\r
3434\r
3435 If 8-bit operations are not supported, then ASSERT().\r
3436 If StartBit is greater than 7, then ASSERT().\r
3437 If EndBit is greater than 7, then ASSERT().\r
3438 If EndBit is less than StartBit, then ASSERT().\r
94952554 3439 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3440\r
3441 @param Operand Operand on which to perform the bitfield operation.\r
3442 @param StartBit The ordinal of the least significant bit in the bit field.\r
3443 Range 0..7.\r
3444 @param EndBit The ordinal of the most significant bit in the bit field.\r
3445 Range 0..7.\r
3446 @param OrData The value to OR with the read value from the value\r
3447\r
3448 @return The new 8-bit value.\r
3449\r
3450**/\r
3451UINT8\r
3452EFIAPI\r
3453BitFieldOr8 (\r
3454 IN UINT8 Operand,\r
3455 IN UINTN StartBit,\r
3456 IN UINTN EndBit,\r
3457 IN UINT8 OrData\r
3458 );\r
3459\r
3460\r
3461/**\r
3462 Reads a bit field from an 8-bit value, performs a bitwise AND, and returns\r
3463 the result.\r
3464\r
3465 Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
3466 in Operand and the value specified by AndData. All other bits in Operand are\r
3467 preserved. The new 8-bit value is returned.\r
3468\r
3469 If 8-bit operations are not supported, then ASSERT().\r
3470 If StartBit is greater than 7, then ASSERT().\r
3471 If EndBit is greater than 7, then ASSERT().\r
3472 If EndBit is less than StartBit, then ASSERT().\r
94952554 3473 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3474\r
3475 @param Operand Operand on which to perform the bitfield operation.\r
3476 @param StartBit The ordinal of the least significant bit in the bit field.\r
3477 Range 0..7.\r
3478 @param EndBit The ordinal of the most significant bit in the bit field.\r
3479 Range 0..7.\r
3480 @param AndData The value to AND with the read value from the value.\r
3481\r
3482 @return The new 8-bit value.\r
3483\r
3484**/\r
3485UINT8\r
3486EFIAPI\r
3487BitFieldAnd8 (\r
3488 IN UINT8 Operand,\r
3489 IN UINTN StartBit,\r
3490 IN UINTN EndBit,\r
3491 IN UINT8 AndData\r
3492 );\r
3493\r
3494\r
3495/**\r
3496 Reads a bit field from an 8-bit value, performs a bitwise AND followed by a\r
3497 bitwise OR, and returns the result.\r
3498\r
3499 Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
62991af2 3500 in Operand and the value specified by AndData, followed by a bitwise \r
3501 OR with value specified by OrData. All other bits in Operand are\r
ac644614 3502 preserved. The new 8-bit value is returned.\r
3503\r
3504 If 8-bit operations are not supported, then ASSERT().\r
3505 If StartBit is greater than 7, then ASSERT().\r
3506 If EndBit is greater than 7, then ASSERT().\r
3507 If EndBit is less than StartBit, then ASSERT().\r
94952554
LG
3508 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
3509 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3510\r
3511 @param Operand Operand on which to perform the bitfield operation.\r
3512 @param StartBit The ordinal of the least significant bit in the bit field.\r
3513 Range 0..7.\r
3514 @param EndBit The ordinal of the most significant bit in the bit field.\r
3515 Range 0..7.\r
3516 @param AndData The value to AND with the read value from the value.\r
3517 @param OrData The value to OR with the result of the AND operation.\r
3518\r
3519 @return The new 8-bit value.\r
3520\r
3521**/\r
3522UINT8\r
3523EFIAPI\r
3524BitFieldAndThenOr8 (\r
3525 IN UINT8 Operand,\r
3526 IN UINTN StartBit,\r
3527 IN UINTN EndBit,\r
3528 IN UINT8 AndData,\r
3529 IN UINT8 OrData\r
3530 );\r
3531\r
3532\r
3533/**\r
3534 Returns a bit field from a 16-bit value.\r
3535\r
3536 Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
3537\r
3538 If 16-bit operations are not supported, then ASSERT().\r
3539 If StartBit is greater than 15, then ASSERT().\r
3540 If EndBit is greater than 15, then ASSERT().\r
3541 If EndBit is less than StartBit, then ASSERT().\r
3542\r
3543 @param Operand Operand on which to perform the bitfield operation.\r
3544 @param StartBit The ordinal of the least significant bit in the bit field.\r
3545 Range 0..15.\r
3546 @param EndBit The ordinal of the most significant bit in the bit field.\r
3547 Range 0..15.\r
3548\r
3549 @return The bit field read.\r
3550\r
3551**/\r
3552UINT16\r
3553EFIAPI\r
3554BitFieldRead16 (\r
3555 IN UINT16 Operand,\r
3556 IN UINTN StartBit,\r
3557 IN UINTN EndBit\r
3558 );\r
3559\r
3560\r
3561/**\r
3562 Writes a bit field to a 16-bit value, and returns the result.\r
3563\r
3564 Writes Value to the bit field specified by the StartBit and the EndBit in\r
3565 Operand. All other bits in Operand are preserved. The new 16-bit value is\r
3566 returned.\r
3567\r
3568 If 16-bit operations are not supported, then ASSERT().\r
3569 If StartBit is greater than 15, then ASSERT().\r
3570 If EndBit is greater than 15, then ASSERT().\r
3571 If EndBit is less than StartBit, then ASSERT().\r
94952554 3572 If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3573\r
3574 @param Operand Operand on which to perform the bitfield operation.\r
3575 @param StartBit The ordinal of the least significant bit in the bit field.\r
3576 Range 0..15.\r
3577 @param EndBit The ordinal of the most significant bit in the bit field.\r
3578 Range 0..15.\r
3579 @param Value New value of the bit field.\r
3580\r
3581 @return The new 16-bit value.\r
3582\r
3583**/\r
3584UINT16\r
3585EFIAPI\r
3586BitFieldWrite16 (\r
3587 IN UINT16 Operand,\r
3588 IN UINTN StartBit,\r
3589 IN UINTN EndBit,\r
3590 IN UINT16 Value\r
3591 );\r
3592\r
3593\r
3594/**\r
3595 Reads a bit field from a 16-bit value, performs a bitwise OR, and returns the\r
3596 result.\r
3597\r
62991af2 3598 Performs a bitwise OR between the bit field specified by StartBit\r
ac644614 3599 and EndBit in Operand and the value specified by OrData. All other bits in\r
3600 Operand are preserved. The new 16-bit value is returned.\r
3601\r
3602 If 16-bit operations are not supported, then ASSERT().\r
3603 If StartBit is greater than 15, then ASSERT().\r
3604 If EndBit is greater than 15, then ASSERT().\r
3605 If EndBit is less than StartBit, then ASSERT().\r
94952554 3606 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3607\r
3608 @param Operand Operand on which to perform the bitfield operation.\r
3609 @param StartBit The ordinal of the least significant bit in the bit field.\r
3610 Range 0..15.\r
3611 @param EndBit The ordinal of the most significant bit in the bit field.\r
3612 Range 0..15.\r
3613 @param OrData The value to OR with the read value from the value\r
3614\r
3615 @return The new 16-bit value.\r
3616\r
3617**/\r
3618UINT16\r
3619EFIAPI\r
3620BitFieldOr16 (\r
3621 IN UINT16 Operand,\r
3622 IN UINTN StartBit,\r
3623 IN UINTN EndBit,\r
3624 IN UINT16 OrData\r
3625 );\r
3626\r
3627\r
3628/**\r
3629 Reads a bit field from a 16-bit value, performs a bitwise AND, and returns\r
3630 the result.\r
3631\r
3632 Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
3633 in Operand and the value specified by AndData. All other bits in Operand are\r
3634 preserved. The new 16-bit value is returned.\r
3635\r
3636 If 16-bit operations are not supported, then ASSERT().\r
3637 If StartBit is greater than 15, then ASSERT().\r
3638 If EndBit is greater than 15, then ASSERT().\r
3639 If EndBit is less than StartBit, then ASSERT().\r
94952554 3640 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3641\r
3642 @param Operand Operand on which to perform the bitfield operation.\r
3643 @param StartBit The ordinal of the least significant bit in the bit field.\r
3644 Range 0..15.\r
3645 @param EndBit The ordinal of the most significant bit in the bit field.\r
3646 Range 0..15.\r
3647 @param AndData The value to AND with the read value from the value\r
3648\r
3649 @return The new 16-bit value.\r
3650\r
3651**/\r
3652UINT16\r
3653EFIAPI\r
3654BitFieldAnd16 (\r
3655 IN UINT16 Operand,\r
3656 IN UINTN StartBit,\r
3657 IN UINTN EndBit,\r
3658 IN UINT16 AndData\r
3659 );\r
3660\r
3661\r
3662/**\r
3663 Reads a bit field from a 16-bit value, performs a bitwise AND followed by a\r
3664 bitwise OR, and returns the result.\r
3665\r
3666 Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
62991af2 3667 in Operand and the value specified by AndData, followed by a bitwise \r
3668 OR with value specified by OrData. All other bits in Operand are\r
ac644614 3669 preserved. The new 16-bit value is returned.\r
3670\r
3671 If 16-bit operations are not supported, then ASSERT().\r
3672 If StartBit is greater than 15, then ASSERT().\r
3673 If EndBit is greater than 15, then ASSERT().\r
3674 If EndBit is less than StartBit, then ASSERT().\r
94952554
LG
3675 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
3676 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3677\r
3678 @param Operand Operand on which to perform the bitfield operation.\r
3679 @param StartBit The ordinal of the least significant bit in the bit field.\r
3680 Range 0..15.\r
3681 @param EndBit The ordinal of the most significant bit in the bit field.\r
3682 Range 0..15.\r
3683 @param AndData The value to AND with the read value from the value.\r
3684 @param OrData The value to OR with the result of the AND operation.\r
3685\r
3686 @return The new 16-bit value.\r
3687\r
3688**/\r
3689UINT16\r
3690EFIAPI\r
3691BitFieldAndThenOr16 (\r
3692 IN UINT16 Operand,\r
3693 IN UINTN StartBit,\r
3694 IN UINTN EndBit,\r
3695 IN UINT16 AndData,\r
3696 IN UINT16 OrData\r
3697 );\r
3698\r
3699\r
3700/**\r
3701 Returns a bit field from a 32-bit value.\r
3702\r
3703 Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
3704\r
3705 If 32-bit operations are not supported, then ASSERT().\r
3706 If StartBit is greater than 31, then ASSERT().\r
3707 If EndBit is greater than 31, then ASSERT().\r
3708 If EndBit is less than StartBit, then ASSERT().\r
3709\r
3710 @param Operand Operand on which to perform the bitfield operation.\r
3711 @param StartBit The ordinal of the least significant bit in the bit field.\r
3712 Range 0..31.\r
3713 @param EndBit The ordinal of the most significant bit in the bit field.\r
3714 Range 0..31.\r
3715\r
3716 @return The bit field read.\r
3717\r
3718**/\r
3719UINT32\r
3720EFIAPI\r
3721BitFieldRead32 (\r
3722 IN UINT32 Operand,\r
3723 IN UINTN StartBit,\r
3724 IN UINTN EndBit\r
3725 );\r
3726\r
3727\r
3728/**\r
3729 Writes a bit field to a 32-bit value, and returns the result.\r
3730\r
3731 Writes Value to the bit field specified by the StartBit and the EndBit in\r
3732 Operand. All other bits in Operand are preserved. The new 32-bit value is\r
3733 returned.\r
3734\r
3735 If 32-bit operations are not supported, then ASSERT().\r
3736 If StartBit is greater than 31, then ASSERT().\r
3737 If EndBit is greater than 31, then ASSERT().\r
3738 If EndBit is less than StartBit, then ASSERT().\r
94952554 3739 If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3740\r
3741 @param Operand Operand on which to perform the bitfield operation.\r
3742 @param StartBit The ordinal of the least significant bit in the bit field.\r
3743 Range 0..31.\r
3744 @param EndBit The ordinal of the most significant bit in the bit field.\r
3745 Range 0..31.\r
3746 @param Value New value of the bit field.\r
3747\r
3748 @return The new 32-bit value.\r
3749\r
3750**/\r
3751UINT32\r
3752EFIAPI\r
3753BitFieldWrite32 (\r
3754 IN UINT32 Operand,\r
3755 IN UINTN StartBit,\r
3756 IN UINTN EndBit,\r
3757 IN UINT32 Value\r
3758 );\r
3759\r
3760\r
3761/**\r
3762 Reads a bit field from a 32-bit value, performs a bitwise OR, and returns the\r
3763 result.\r
3764\r
62991af2 3765 Performs a bitwise OR between the bit field specified by StartBit\r
ac644614 3766 and EndBit in Operand and the value specified by OrData. All other bits in\r
3767 Operand are preserved. The new 32-bit value is returned.\r
3768\r
3769 If 32-bit operations are not supported, then ASSERT().\r
3770 If StartBit is greater than 31, then ASSERT().\r
3771 If EndBit is greater than 31, then ASSERT().\r
3772 If EndBit is less than StartBit, then ASSERT().\r
94952554 3773 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3774\r
3775 @param Operand Operand on which to perform the bitfield operation.\r
3776 @param StartBit The ordinal of the least significant bit in the bit field.\r
3777 Range 0..31.\r
3778 @param EndBit The ordinal of the most significant bit in the bit field.\r
3779 Range 0..31.\r
af2dc6a7 3780 @param OrData The value to OR with the read value from the value.\r
ac644614 3781\r
3782 @return The new 32-bit value.\r
3783\r
3784**/\r
3785UINT32\r
3786EFIAPI\r
3787BitFieldOr32 (\r
3788 IN UINT32 Operand,\r
3789 IN UINTN StartBit,\r
3790 IN UINTN EndBit,\r
3791 IN UINT32 OrData\r
3792 );\r
3793\r
3794\r
3795/**\r
3796 Reads a bit field from a 32-bit value, performs a bitwise AND, and returns\r
3797 the result.\r
3798\r
3799 Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
3800 in Operand and the value specified by AndData. All other bits in Operand are\r
3801 preserved. The new 32-bit value is returned.\r
3802\r
3803 If 32-bit operations are not supported, then ASSERT().\r
3804 If StartBit is greater than 31, then ASSERT().\r
3805 If EndBit is greater than 31, then ASSERT().\r
3806 If EndBit is less than StartBit, then ASSERT().\r
94952554 3807 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3808\r
3809 @param Operand Operand on which to perform the bitfield operation.\r
3810 @param StartBit The ordinal of the least significant bit in the bit field.\r
3811 Range 0..31.\r
3812 @param EndBit The ordinal of the most significant bit in the bit field.\r
3813 Range 0..31.\r
3814 @param AndData The value to AND with the read value from the value\r
3815\r
3816 @return The new 32-bit value.\r
3817\r
3818**/\r
3819UINT32\r
3820EFIAPI\r
3821BitFieldAnd32 (\r
3822 IN UINT32 Operand,\r
3823 IN UINTN StartBit,\r
3824 IN UINTN EndBit,\r
3825 IN UINT32 AndData\r
3826 );\r
3827\r
3828\r
3829/**\r
3830 Reads a bit field from a 32-bit value, performs a bitwise AND followed by a\r
3831 bitwise OR, and returns the result.\r
3832\r
3833 Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
62991af2 3834 in Operand and the value specified by AndData, followed by a bitwise \r
3835 OR with value specified by OrData. All other bits in Operand are\r
ac644614 3836 preserved. The new 32-bit value is returned.\r
3837\r
3838 If 32-bit operations are not supported, then ASSERT().\r
3839 If StartBit is greater than 31, then ASSERT().\r
3840 If EndBit is greater than 31, then ASSERT().\r
3841 If EndBit is less than StartBit, then ASSERT().\r
94952554
LG
3842 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
3843 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3844\r
3845 @param Operand Operand on which to perform the bitfield operation.\r
3846 @param StartBit The ordinal of the least significant bit in the bit field.\r
3847 Range 0..31.\r
3848 @param EndBit The ordinal of the most significant bit in the bit field.\r
3849 Range 0..31.\r
3850 @param AndData The value to AND with the read value from the value.\r
3851 @param OrData The value to OR with the result of the AND operation.\r
3852\r
3853 @return The new 32-bit value.\r
3854\r
3855**/\r
3856UINT32\r
3857EFIAPI\r
3858BitFieldAndThenOr32 (\r
3859 IN UINT32 Operand,\r
3860 IN UINTN StartBit,\r
3861 IN UINTN EndBit,\r
3862 IN UINT32 AndData,\r
3863 IN UINT32 OrData\r
3864 );\r
3865\r
3866\r
3867/**\r
3868 Returns a bit field from a 64-bit value.\r
3869\r
3870 Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
3871\r
3872 If 64-bit operations are not supported, then ASSERT().\r
3873 If StartBit is greater than 63, then ASSERT().\r
3874 If EndBit is greater than 63, then ASSERT().\r
3875 If EndBit is less than StartBit, then ASSERT().\r
3876\r
3877 @param Operand Operand on which to perform the bitfield operation.\r
3878 @param StartBit The ordinal of the least significant bit in the bit field.\r
3879 Range 0..63.\r
3880 @param EndBit The ordinal of the most significant bit in the bit field.\r
3881 Range 0..63.\r
3882\r
3883 @return The bit field read.\r
3884\r
3885**/\r
3886UINT64\r
3887EFIAPI\r
3888BitFieldRead64 (\r
3889 IN UINT64 Operand,\r
3890 IN UINTN StartBit,\r
3891 IN UINTN EndBit\r
3892 );\r
3893\r
3894\r
3895/**\r
3896 Writes a bit field to a 64-bit value, and returns the result.\r
3897\r
3898 Writes Value to the bit field specified by the StartBit and the EndBit in\r
3899 Operand. All other bits in Operand are preserved. The new 64-bit value is\r
3900 returned.\r
3901\r
3902 If 64-bit operations are not supported, then ASSERT().\r
3903 If StartBit is greater than 63, then ASSERT().\r
3904 If EndBit is greater than 63, then ASSERT().\r
3905 If EndBit is less than StartBit, then ASSERT().\r
94952554 3906 If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3907\r
3908 @param Operand Operand on which to perform the bitfield operation.\r
3909 @param StartBit The ordinal of the least significant bit in the bit field.\r
3910 Range 0..63.\r
3911 @param EndBit The ordinal of the most significant bit in the bit field.\r
3912 Range 0..63.\r
3913 @param Value New value of the bit field.\r
3914\r
3915 @return The new 64-bit value.\r
3916\r
3917**/\r
3918UINT64\r
3919EFIAPI\r
3920BitFieldWrite64 (\r
3921 IN UINT64 Operand,\r
3922 IN UINTN StartBit,\r
3923 IN UINTN EndBit,\r
3924 IN UINT64 Value\r
3925 );\r
3926\r
3927\r
3928/**\r
3929 Reads a bit field from a 64-bit value, performs a bitwise OR, and returns the\r
3930 result.\r
3931\r
62991af2 3932 Performs a bitwise OR between the bit field specified by StartBit\r
ac644614 3933 and EndBit in Operand and the value specified by OrData. All other bits in\r
3934 Operand are preserved. The new 64-bit value is returned.\r
3935\r
3936 If 64-bit operations are not supported, then ASSERT().\r
3937 If StartBit is greater than 63, then ASSERT().\r
3938 If EndBit is greater than 63, then ASSERT().\r
3939 If EndBit is less than StartBit, then ASSERT().\r
94952554 3940 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3941\r
3942 @param Operand Operand on which to perform the bitfield operation.\r
3943 @param StartBit The ordinal of the least significant bit in the bit field.\r
3944 Range 0..63.\r
3945 @param EndBit The ordinal of the most significant bit in the bit field.\r
3946 Range 0..63.\r
3947 @param OrData The value to OR with the read value from the value\r
3948\r
3949 @return The new 64-bit value.\r
3950\r
3951**/\r
3952UINT64\r
3953EFIAPI\r
3954BitFieldOr64 (\r
3955 IN UINT64 Operand,\r
3956 IN UINTN StartBit,\r
3957 IN UINTN EndBit,\r
3958 IN UINT64 OrData\r
3959 );\r
3960\r
3961\r
3962/**\r
3963 Reads a bit field from a 64-bit value, performs a bitwise AND, and returns\r
3964 the result.\r
3965\r
3966 Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
3967 in Operand and the value specified by AndData. All other bits in Operand are\r
3968 preserved. The new 64-bit value is returned.\r
3969\r
3970 If 64-bit operations are not supported, then ASSERT().\r
3971 If StartBit is greater than 63, then ASSERT().\r
3972 If EndBit is greater than 63, then ASSERT().\r
3973 If EndBit is less than StartBit, then ASSERT().\r
94952554 3974 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 3975\r
3976 @param Operand Operand on which to perform the bitfield operation.\r
3977 @param StartBit The ordinal of the least significant bit in the bit field.\r
3978 Range 0..63.\r
3979 @param EndBit The ordinal of the most significant bit in the bit field.\r
3980 Range 0..63.\r
3981 @param AndData The value to AND with the read value from the value\r
3982\r
3983 @return The new 64-bit value.\r
3984\r
3985**/\r
3986UINT64\r
3987EFIAPI\r
3988BitFieldAnd64 (\r
3989 IN UINT64 Operand,\r
3990 IN UINTN StartBit,\r
3991 IN UINTN EndBit,\r
3992 IN UINT64 AndData\r
3993 );\r
3994\r
3995\r
3996/**\r
3997 Reads a bit field from a 64-bit value, performs a bitwise AND followed by a\r
3998 bitwise OR, and returns the result.\r
3999\r
4000 Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
62991af2 4001 in Operand and the value specified by AndData, followed by a bitwise \r
4002 OR with value specified by OrData. All other bits in Operand are\r
ac644614 4003 preserved. The new 64-bit value is returned.\r
4004\r
4005 If 64-bit operations are not supported, then ASSERT().\r
4006 If StartBit is greater than 63, then ASSERT().\r
4007 If EndBit is greater than 63, then ASSERT().\r
4008 If EndBit is less than StartBit, then ASSERT().\r
94952554
LG
4009 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
4010 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 4011\r
4012 @param Operand Operand on which to perform the bitfield operation.\r
4013 @param StartBit The ordinal of the least significant bit in the bit field.\r
4014 Range 0..63.\r
4015 @param EndBit The ordinal of the most significant bit in the bit field.\r
4016 Range 0..63.\r
4017 @param AndData The value to AND with the read value from the value.\r
4018 @param OrData The value to OR with the result of the AND operation.\r
4019\r
4020 @return The new 64-bit value.\r
4021\r
4022**/\r
4023UINT64\r
4024EFIAPI\r
4025BitFieldAndThenOr64 (\r
4026 IN UINT64 Operand,\r
4027 IN UINTN StartBit,\r
4028 IN UINTN EndBit,\r
4029 IN UINT64 AndData,\r
4030 IN UINT64 OrData\r
4031 );\r
4032\r
ac644614 4033//\r
4034// Base Library Checksum Functions\r
4035//\r
4036\r
4037/**\r
17f695ed 4038 Returns the sum of all elements in a buffer in unit of UINT8.\r
ac644614 4039 During calculation, the carry bits are dropped.\r
4040\r
4041 This function calculates the sum of all elements in a buffer\r
4042 in unit of UINT8. The carry bits in result of addition are dropped.\r
4043 The result is returned as UINT8. If Length is Zero, then Zero is\r
4044 returned.\r
4045\r
4046 If Buffer is NULL, then ASSERT().\r
4047 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
4048\r
af2dc6a7 4049 @param Buffer The pointer to the buffer to carry out the sum operation.\r
17f695ed 4050 @param Length The size, in bytes, of Buffer.\r
ac644614 4051\r
4052 @return Sum The sum of Buffer with carry bits dropped during additions.\r
4053\r
4054**/\r
4055UINT8\r
4056EFIAPI\r
4057CalculateSum8 (\r
ee6c452c 4058 IN CONST UINT8 *Buffer,\r
4059 IN UINTN Length\r
ac644614 4060 );\r
4061\r
4062\r
4063/**\r
4064 Returns the two's complement checksum of all elements in a buffer\r
4065 of 8-bit values.\r
4066\r
4067 This function first calculates the sum of the 8-bit values in the\r
4068 buffer specified by Buffer and Length. The carry bits in the result\r
4069 of addition are dropped. Then, the two's complement of the sum is\r
4070 returned. If Length is 0, then 0 is returned.\r
4071\r
4072 If Buffer is NULL, then ASSERT().\r
4073 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
4074\r
af2dc6a7 4075 @param Buffer The pointer to the buffer to carry out the checksum operation.\r
1106ffe1 4076 @param Length The size, in bytes, of Buffer.\r
ac644614 4077\r
af2dc6a7 4078 @return Checksum The two's complement checksum of Buffer.\r
ac644614 4079\r
4080**/\r
4081UINT8\r
4082EFIAPI\r
4083CalculateCheckSum8 (\r
ee6c452c 4084 IN CONST UINT8 *Buffer,\r
4085 IN UINTN Length\r
ac644614 4086 );\r
4087\r
4088\r
4089/**\r
4090 Returns the sum of all elements in a buffer of 16-bit values. During\r
4091 calculation, the carry bits are dropped.\r
4092\r
4093 This function calculates the sum of the 16-bit values in the buffer\r
4094 specified by Buffer and Length. The carry bits in result of addition are dropped.\r
4095 The 16-bit result is returned. If Length is 0, then 0 is returned.\r
4096\r
4097 If Buffer is NULL, then ASSERT().\r
4098 If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r
4099 If Length is not aligned on a 16-bit boundary, then ASSERT().\r
4100 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
4101\r
af2dc6a7 4102 @param Buffer The pointer to the buffer to carry out the sum operation.\r
1106ffe1 4103 @param Length The size, in bytes, of Buffer.\r
ac644614 4104\r
4105 @return Sum The sum of Buffer with carry bits dropped during additions.\r
4106\r
4107**/\r
4108UINT16\r
4109EFIAPI\r
4110CalculateSum16 (\r
ee6c452c 4111 IN CONST UINT16 *Buffer,\r
4112 IN UINTN Length\r
ac644614 4113 );\r
4114\r
4115\r
4116/**\r
4117 Returns the two's complement checksum of all elements in a buffer of\r
4118 16-bit values.\r
4119\r
4120 This function first calculates the sum of the 16-bit values in the buffer\r
4121 specified by Buffer and Length. The carry bits in the result of addition\r
4122 are dropped. Then, the two's complement of the sum is returned. If Length\r
4123 is 0, then 0 is returned.\r
4124\r
4125 If Buffer is NULL, then ASSERT().\r
4126 If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r
4127 If Length is not aligned on a 16-bit boundary, then ASSERT().\r
4128 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
4129\r
af2dc6a7 4130 @param Buffer The pointer to the buffer to carry out the checksum operation.\r
1106ffe1 4131 @param Length The size, in bytes, of Buffer.\r
ac644614 4132\r
af2dc6a7 4133 @return Checksum The two's complement checksum of Buffer.\r
ac644614 4134\r
4135**/\r
4136UINT16\r
4137EFIAPI\r
4138CalculateCheckSum16 (\r
ee6c452c 4139 IN CONST UINT16 *Buffer,\r
4140 IN UINTN Length\r
ac644614 4141 );\r
4142\r
4143\r
4144/**\r
17f695ed 4145 Returns the sum of all elements in a buffer of 32-bit values. During\r
ac644614 4146 calculation, the carry bits are dropped.\r
4147\r
4148 This function calculates the sum of the 32-bit values in the buffer\r
4149 specified by Buffer and Length. The carry bits in result of addition are dropped.\r
17f695ed 4150 The 32-bit result is returned. If Length is 0, then 0 is returned.\r
ac644614 4151\r
4152 If Buffer is NULL, then ASSERT().\r
4153 If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
4154 If Length is not aligned on a 32-bit boundary, then ASSERT().\r
4155 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
4156\r
af2dc6a7 4157 @param Buffer The pointer to the buffer to carry out the sum operation.\r
1106ffe1 4158 @param Length The size, in bytes, of Buffer.\r
ac644614 4159\r
4160 @return Sum The sum of Buffer with carry bits dropped during additions.\r
4161\r
4162**/\r
4163UINT32\r
4164EFIAPI\r
4165CalculateSum32 (\r
ee6c452c 4166 IN CONST UINT32 *Buffer,\r
4167 IN UINTN Length\r
ac644614 4168 );\r
4169\r
4170\r
4171/**\r
4172 Returns the two's complement checksum of all elements in a buffer of\r
4173 32-bit values.\r
4174\r
4175 This function first calculates the sum of the 32-bit values in the buffer\r
4176 specified by Buffer and Length. The carry bits in the result of addition\r
4177 are dropped. Then, the two's complement of the sum is returned. If Length\r
4178 is 0, then 0 is returned.\r
4179\r
4180 If Buffer is NULL, then ASSERT().\r
4181 If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
4182 If Length is not aligned on a 32-bit boundary, then ASSERT().\r
4183 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
4184\r
af2dc6a7 4185 @param Buffer The pointer to the buffer to carry out the checksum operation.\r
1106ffe1 4186 @param Length The size, in bytes, of Buffer.\r
ac644614 4187\r
af2dc6a7 4188 @return Checksum The two's complement checksum of Buffer.\r
ac644614 4189\r
4190**/\r
4191UINT32\r
4192EFIAPI\r
4193CalculateCheckSum32 (\r
ee6c452c 4194 IN CONST UINT32 *Buffer,\r
4195 IN UINTN Length\r
ac644614 4196 );\r
4197\r
4198\r
4199/**\r
4200 Returns the sum of all elements in a buffer of 64-bit values. During\r
4201 calculation, the carry bits are dropped.\r
4202\r
4203 This function calculates the sum of the 64-bit values in the buffer\r
4204 specified by Buffer and Length. The carry bits in result of addition are dropped.\r
4205 The 64-bit result is returned. If Length is 0, then 0 is returned.\r
4206\r
4207 If Buffer is NULL, then ASSERT().\r
4208 If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r
4209 If Length is not aligned on a 64-bit boundary, then ASSERT().\r
4210 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
4211\r
af2dc6a7 4212 @param Buffer The pointer to the buffer to carry out the sum operation.\r
1106ffe1 4213 @param Length The size, in bytes, of Buffer.\r
ac644614 4214\r
4215 @return Sum The sum of Buffer with carry bits dropped during additions.\r
4216\r
4217**/\r
4218UINT64\r
4219EFIAPI\r
4220CalculateSum64 (\r
ee6c452c 4221 IN CONST UINT64 *Buffer,\r
4222 IN UINTN Length\r
ac644614 4223 );\r
4224\r
4225\r
4226/**\r
4227 Returns the two's complement checksum of all elements in a buffer of\r
4228 64-bit values.\r
4229\r
4230 This function first calculates the sum of the 64-bit values in the buffer\r
4231 specified by Buffer and Length. The carry bits in the result of addition\r
4232 are dropped. Then, the two's complement of the sum is returned. If Length\r
4233 is 0, then 0 is returned.\r
4234\r
4235 If Buffer is NULL, then ASSERT().\r
4236 If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r
4237 If Length is not aligned on a 64-bit boundary, then ASSERT().\r
4238 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
4239\r
af2dc6a7 4240 @param Buffer The pointer to the buffer to carry out the checksum operation.\r
1106ffe1 4241 @param Length The size, in bytes, of Buffer.\r
ac644614 4242\r
af2dc6a7 4243 @return Checksum The two's complement checksum of Buffer.\r
ac644614 4244\r
4245**/\r
4246UINT64\r
4247EFIAPI\r
4248CalculateCheckSum64 (\r
ee6c452c 4249 IN CONST UINT64 *Buffer,\r
4250 IN UINTN Length\r
ac644614 4251 );\r
4252\r
4253\r
d75f9fc2 4254//\r
4255// Base Library CPU Functions\r
4256//\r
4257\r
4258/**\r
4259 Function entry point used when a stack switch is requested with SwitchStack()\r
4260\r
4261 @param Context1 Context1 parameter passed into SwitchStack().\r
4262 @param Context2 Context2 parameter passed into SwitchStack().\r
4263\r
4264**/\r
ac644614 4265typedef\r
4266VOID\r
9810cdd8 4267(EFIAPI *SWITCH_STACK_ENTRY_POINT)(\r
ac644614 4268 IN VOID *Context1, OPTIONAL\r
4269 IN VOID *Context2 OPTIONAL\r
4270 );\r
4271\r
4272\r
4273/**\r
4274 Used to serialize load and store operations.\r
4275\r
4276 All loads and stores that proceed calls to this function are guaranteed to be\r
4277 globally visible when this function returns.\r
4278\r
4279**/\r
4280VOID\r
4281EFIAPI\r
4282MemoryFence (\r
4283 VOID\r
4284 );\r
4285\r
4286\r
4287/**\r
4288 Saves the current CPU context that can be restored with a call to LongJump()\r
4289 and returns 0.\r
4290\r
4291 Saves the current CPU context in the buffer specified by JumpBuffer and\r
4292 returns 0. The initial call to SetJump() must always return 0. Subsequent\r
4293 calls to LongJump() cause a non-zero value to be returned by SetJump().\r
4294\r
4295 If JumpBuffer is NULL, then ASSERT().\r
1a2f870c 4296 For Itanium processors, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
17f695ed 4297 \r
4298 NOTE: The structure BASE_LIBRARY_JUMP_BUFFER is CPU architecture specific.\r
4299 The same structure must never be used for more than one CPU architecture context.\r
4300 For example, a BASE_LIBRARY_JUMP_BUFFER allocated by an IA-32 module must never be used from an x64 module. \r
4301 SetJump()/LongJump() is not currently supported for the EBC processor type. \r
ac644614 4302\r
4303 @param JumpBuffer A pointer to CPU context buffer.\r
4304\r
4305 @retval 0 Indicates a return from SetJump().\r
4306\r
4307**/\r
4308UINTN\r
4309EFIAPI\r
4310SetJump (\r
4311 OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer\r
4312 );\r
4313\r
4314\r
4315/**\r
4316 Restores the CPU context that was saved with SetJump().\r
4317\r
4318 Restores the CPU context from the buffer specified by JumpBuffer. This\r
4319 function never returns to the caller. Instead is resumes execution based on\r
4320 the state of JumpBuffer.\r
4321\r
4322 If JumpBuffer is NULL, then ASSERT().\r
1a2f870c 4323 For Itanium processors, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
ac644614 4324 If Value is 0, then ASSERT().\r
4325\r
4326 @param JumpBuffer A pointer to CPU context buffer.\r
4327 @param Value The value to return when the SetJump() context is\r
4328 restored and must be non-zero.\r
4329\r
4330**/\r
4331VOID\r
4332EFIAPI\r
4333LongJump (\r
4334 IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,\r
4335 IN UINTN Value\r
4336 );\r
4337\r
4338\r
4339/**\r
4340 Enables CPU interrupts.\r
4341\r
ac644614 4342**/\r
4343VOID\r
4344EFIAPI\r
4345EnableInterrupts (\r
4346 VOID\r
4347 );\r
4348\r
4349\r
4350/**\r
4351 Disables CPU interrupts.\r
4352\r
ac644614 4353**/\r
4354VOID\r
4355EFIAPI\r
4356DisableInterrupts (\r
4357 VOID\r
4358 );\r
4359\r
4360\r
4361/**\r
4362 Disables CPU interrupts and returns the interrupt state prior to the disable\r
4363 operation.\r
4364\r
ac644614 4365 @retval TRUE CPU interrupts were enabled on entry to this call.\r
4366 @retval FALSE CPU interrupts were disabled on entry to this call.\r
4367\r
4368**/\r
4369BOOLEAN\r
4370EFIAPI\r
4371SaveAndDisableInterrupts (\r
4372 VOID\r
4373 );\r
4374\r
4375\r
4376/**\r
4377 Enables CPU interrupts for the smallest window required to capture any\r
4378 pending interrupts.\r
4379\r
ac644614 4380**/\r
4381VOID\r
4382EFIAPI\r
4383EnableDisableInterrupts (\r
4384 VOID\r
4385 );\r
4386\r
4387\r
4388/**\r
4389 Retrieves the current CPU interrupt state.\r
4390\r
af2dc6a7 4391 Returns TRUE if interrupts are currently enabled. Otherwise\r
38bbd3d9 4392 returns FALSE.\r
ac644614 4393\r
4394 @retval TRUE CPU interrupts are enabled.\r
4395 @retval FALSE CPU interrupts are disabled.\r
4396\r
4397**/\r
4398BOOLEAN\r
4399EFIAPI\r
4400GetInterruptState (\r
4401 VOID\r
4402 );\r
4403\r
4404\r
4405/**\r
4406 Set the current CPU interrupt state.\r
4407\r
4408 Sets the current CPU interrupt state to the state specified by\r
4409 InterruptState. If InterruptState is TRUE, then interrupts are enabled. If\r
4410 InterruptState is FALSE, then interrupts are disabled. InterruptState is\r
4411 returned.\r
4412\r
4413 @param InterruptState TRUE if interrupts should enabled. FALSE if\r
4414 interrupts should be disabled.\r
4415\r
4416 @return InterruptState\r
4417\r
4418**/\r
4419BOOLEAN\r
4420EFIAPI\r
4421SetInterruptState (\r
4422 IN BOOLEAN InterruptState\r
4423 );\r
4424\r
4425\r
4426/**\r
4427 Requests CPU to pause for a short period of time.\r
4428\r
4429 Requests CPU to pause for a short period of time. Typically used in MP\r
4430 systems to prevent memory starvation while waiting for a spin lock.\r
4431\r
4432**/\r
4433VOID\r
4434EFIAPI\r
4435CpuPause (\r
4436 VOID\r
4437 );\r
4438\r
4439\r
4440/**\r
4441 Transfers control to a function starting with a new stack.\r
4442\r
4443 Transfers control to the function specified by EntryPoint using the\r
4444 new stack specified by NewStack and passing in the parameters specified\r
4445 by Context1 and Context2. Context1 and Context2 are optional and may\r
4446 be NULL. The function EntryPoint must never return. This function\r
4447 supports a variable number of arguments following the NewStack parameter.\r
1a2f870c 4448 These additional arguments are ignored on IA-32, x64, and EBC architectures.\r
4449 Itanium processors expect one additional parameter of type VOID * that specifies\r
ac644614 4450 the new backing store pointer.\r
4451\r
4452 If EntryPoint is NULL, then ASSERT().\r
4453 If NewStack is NULL, then ASSERT().\r
4454\r
4455 @param EntryPoint A pointer to function to call with the new stack.\r
4456 @param Context1 A pointer to the context to pass into the EntryPoint\r
4457 function.\r
4458 @param Context2 A pointer to the context to pass into the EntryPoint\r
4459 function.\r
4460 @param NewStack A pointer to the new stack to use for the EntryPoint\r
4461 function.\r
af2dc6a7 4462 @param ... This variable argument list is ignored for IA-32, x64, and \r
4463 EBC architectures. For Itanium processors, this variable \r
4464 argument list is expected to contain a single parameter of \r
4465 type VOID * that specifies the new backing store pointer.\r
42eedea9 4466\r
ac644614 4467\r
4468**/\r
4469VOID\r
4470EFIAPI\r
4471SwitchStack (\r
4472 IN SWITCH_STACK_ENTRY_POINT EntryPoint,\r
4473 IN VOID *Context1, OPTIONAL\r
4474 IN VOID *Context2, OPTIONAL\r
4475 IN VOID *NewStack,\r
4476 ...\r
4477 );\r
4478\r
4479\r
4480/**\r
4481 Generates a breakpoint on the CPU.\r
4482\r
4483 Generates a breakpoint on the CPU. The breakpoint must be implemented such\r
4484 that code can resume normal execution after the breakpoint.\r
4485\r
4486**/\r
4487VOID\r
4488EFIAPI\r
4489CpuBreakpoint (\r
4490 VOID\r
4491 );\r
4492\r
4493\r
4494/**\r
4495 Executes an infinite loop.\r
4496\r
4497 Forces the CPU to execute an infinite loop. A debugger may be used to skip\r
4498 past the loop and the code that follows the loop must execute properly. This\r
4499 implies that the infinite loop must not cause the code that follow it to be\r
4500 optimized away.\r
4501\r
4502**/\r
4503VOID\r
4504EFIAPI\r
4505CpuDeadLoop (\r
4506 VOID\r
4507 );\r
2fe241a2 4508 \r
ac644614 4509#if defined (MDE_CPU_IPF)\r
4510\r
4511/**\r
4512 Flush a range of cache lines in the cache coherency domain of the calling\r
4513 CPU.\r
4514\r
cc39b88b 4515 Flushes the cache lines specified by Address and Length. If Address is not aligned \r
4516 on a cache line boundary, then entire cache line containing Address is flushed. \r
4517 If Address + Length is not aligned on a cache line boundary, then the entire cache \r
4518 line containing Address + Length - 1 is flushed. This function may choose to flush \r
4519 the entire cache if that is more efficient than flushing the specified range. If \r
4520 Length is 0, the no cache lines are flushed. Address is returned. \r
1a2f870c 4521 This function is only available on Itanium processors.\r
ac644614 4522\r
4523 If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT().\r
4524\r
4525 @param Address The base address of the instruction lines to invalidate. If\r
4526 the CPU is in a physical addressing mode, then Address is a\r
4527 physical address. If the CPU is in a virtual addressing mode,\r
4528 then Address is a virtual address.\r
4529\r
4530 @param Length The number of bytes to invalidate from the instruction cache.\r
4531\r
cc39b88b 4532 @return Address.\r
ac644614 4533\r
4534**/\r
4535VOID *\r
4536EFIAPI\r
cc39b88b 4537AsmFlushCacheRange (\r
ac644614 4538 IN VOID *Address,\r
4539 IN UINTN Length\r
4540 );\r
4541\r
4542\r
4543/**\r
af2dc6a7 4544 Executes an FC instruction.\r
4545 Executes an FC instruction on the cache line specified by Address.\r
ac644614 4546 The cache line size affected is at least 32-bytes (aligned on a 32-byte boundary).\r
1a2f870c 4547 An implementation may flush a larger region. This function is only available on Itanium processors.\r
ac644614 4548\r
ee6c452c 4549 @param Address The Address of cache line to be flushed.\r
ac644614 4550\r
4551 @return The address of FC instruction executed.\r
4552\r
4553**/\r
4554UINT64\r
4555EFIAPI\r
4556AsmFc (\r
4557 IN UINT64 Address\r
4558 );\r
4559\r
4560\r
4561/**\r
af2dc6a7 4562 Executes an FC.I instruction.\r
4563 Executes an FC.I instruction on the cache line specified by Address.\r
ac644614 4564 The cache line size affected is at least 32-bytes (aligned on a 32-byte boundary).\r
1a2f870c 4565 An implementation may flush a larger region. This function is only available on Itanium processors.\r
ac644614 4566\r
ee6c452c 4567 @param Address The Address of cache line to be flushed.\r
ac644614 4568\r
af2dc6a7 4569 @return The address of the FC.I instruction executed.\r
ac644614 4570\r
4571**/\r
4572UINT64\r
4573EFIAPI\r
4574AsmFci (\r
4575 IN UINT64 Address\r
4576 );\r
4577\r
4578\r
4579/**\r
4580 Reads the current value of a Processor Identifier Register (CPUID).\r
17f695ed 4581 \r
4582 Reads and returns the current value of Processor Identifier Register specified by Index. \r
ac644614 4583 The Index of largest implemented CPUID (One less than the number of implemented CPUID\r
4584 registers) is determined by CPUID [3] bits {7:0}.\r
4585 No parameter checking is performed on Index. If the Index value is beyond the\r
4586 implemented CPUID register range, a Reserved Register/Field fault may occur. The caller\r
4587 must either guarantee that Index is valid, or the caller must set up fault handlers to\r
1a2f870c 4588 catch the faults. This function is only available on Itanium processors.\r
ac644614 4589\r
ee6c452c 4590 @param Index The 8-bit Processor Identifier Register index to read.\r
ac644614 4591\r
4592 @return The current value of Processor Identifier Register specified by Index.\r
4593\r
4594**/\r
4595UINT64\r
4596EFIAPI\r
4597AsmReadCpuid (\r
4598 IN UINT8 Index\r
4599 );\r
4600\r
4601\r
4602/**\r
4603 Reads the current value of 64-bit Processor Status Register (PSR).\r
1a2f870c 4604 This function is only available on Itanium processors.\r
ac644614 4605\r
4606 @return The current value of PSR.\r
4607\r
4608**/\r
4609UINT64\r
4610EFIAPI\r
4611AsmReadPsr (\r
4612 VOID\r
4613 );\r
4614\r
4615\r
4616/**\r
4617 Writes the current value of 64-bit Processor Status Register (PSR).\r
22388319 4618\r
ac644614 4619 No parameter checking is performed on Value. All bits of Value corresponding to\r
22388319 4620 reserved fields of PSR must be 0 or a Reserved Register/Field fault may occur.\r
4621 The caller must either guarantee that Value is valid, or the caller must set up\r
1a2f870c 4622 fault handlers to catch the faults. This function is only available on Itanium processors.\r
ac644614 4623\r
ee6c452c 4624 @param Value The 64-bit value to write to PSR.\r
ac644614 4625\r
4626 @return The 64-bit value written to the PSR.\r
4627\r
4628**/\r
4629UINT64\r
4630EFIAPI\r
4631AsmWritePsr (\r
4632 IN UINT64 Value\r
4633 );\r
4634\r
4635\r
4636/**\r
4637 Reads the current value of 64-bit Kernel Register #0 (KR0).\r
2fe241a2 4638 \r
4639 Reads and returns the current value of KR0. \r
1a2f870c 4640 This function is only available on Itanium processors.\r
ac644614 4641\r
4642 @return The current value of KR0.\r
4643\r
4644**/\r
4645UINT64\r
4646EFIAPI\r
4647AsmReadKr0 (\r
4648 VOID\r
4649 );\r
4650\r
4651\r
4652/**\r
4653 Reads the current value of 64-bit Kernel Register #1 (KR1).\r
2fe241a2 4654\r
4655 Reads and returns the current value of KR1. \r
1a2f870c 4656 This function is only available on Itanium processors.\r
ac644614 4657\r
4658 @return The current value of KR1.\r
4659\r
4660**/\r
4661UINT64\r
4662EFIAPI\r
4663AsmReadKr1 (\r
4664 VOID\r
4665 );\r
4666\r
4667\r
4668/**\r
4669 Reads the current value of 64-bit Kernel Register #2 (KR2).\r
2fe241a2 4670\r
4671 Reads and returns the current value of KR2. \r
1a2f870c 4672 This function is only available on Itanium processors.\r
ac644614 4673\r
4674 @return The current value of KR2.\r
4675\r
4676**/\r
4677UINT64\r
4678EFIAPI\r
4679AsmReadKr2 (\r
4680 VOID\r
4681 );\r
4682\r
4683\r
4684/**\r
4685 Reads the current value of 64-bit Kernel Register #3 (KR3).\r
2fe241a2 4686\r
4687 Reads and returns the current value of KR3. \r
1a2f870c 4688 This function is only available on Itanium processors.\r
ac644614 4689\r
4690 @return The current value of KR3.\r
4691\r
4692**/\r
4693UINT64\r
4694EFIAPI\r
4695AsmReadKr3 (\r
4696 VOID\r
4697 );\r
4698\r
4699\r
4700/**\r
4701 Reads the current value of 64-bit Kernel Register #4 (KR4).\r
ac644614 4702\r
2fe241a2 4703 Reads and returns the current value of KR4. \r
1a2f870c 4704 This function is only available on Itanium processors.\r
2fe241a2 4705 \r
ac644614 4706 @return The current value of KR4.\r
4707\r
4708**/\r
4709UINT64\r
4710EFIAPI\r
4711AsmReadKr4 (\r
4712 VOID\r
4713 );\r
4714\r
4715\r
4716/**\r
4717 Reads the current value of 64-bit Kernel Register #5 (KR5).\r
2fe241a2 4718\r
4719 Reads and returns the current value of KR5. \r
1a2f870c 4720 This function is only available on Itanium processors.\r
ac644614 4721\r
4722 @return The current value of KR5.\r
4723\r
4724**/\r
4725UINT64\r
4726EFIAPI\r
4727AsmReadKr5 (\r
4728 VOID\r
4729 );\r
4730\r
4731\r
4732/**\r
4733 Reads the current value of 64-bit Kernel Register #6 (KR6).\r
2fe241a2 4734\r
4735 Reads and returns the current value of KR6. \r
1a2f870c 4736 This function is only available on Itanium processors.\r
ac644614 4737\r
4738 @return The current value of KR6.\r
4739\r
4740**/\r
4741UINT64\r
4742EFIAPI\r
4743AsmReadKr6 (\r
4744 VOID\r
4745 );\r
4746\r
4747\r
4748/**\r
4749 Reads the current value of 64-bit Kernel Register #7 (KR7).\r
2fe241a2 4750\r
4751 Reads and returns the current value of KR7. \r
1a2f870c 4752 This function is only available on Itanium processors.\r
ac644614 4753\r
4754 @return The current value of KR7.\r
4755\r
4756**/\r
4757UINT64\r
4758EFIAPI\r
4759AsmReadKr7 (\r
4760 VOID\r
4761 );\r
4762\r
4763\r
4764/**\r
4765 Write the current value of 64-bit Kernel Register #0 (KR0).\r
2fe241a2 4766 \r
4767 Writes the current value of KR0. The 64-bit value written to \r
1a2f870c 4768 the KR0 is returned. This function is only available on Itanium processors.\r
ac644614 4769\r
ee6c452c 4770 @param Value The 64-bit value to write to KR0.\r
ac644614 4771\r
4772 @return The 64-bit value written to the KR0.\r
4773\r
4774**/\r
4775UINT64\r
4776EFIAPI\r
4777AsmWriteKr0 (\r
4778 IN UINT64 Value\r
4779 );\r
4780\r
4781\r
4782/**\r
4783 Write the current value of 64-bit Kernel Register #1 (KR1).\r
2fe241a2 4784\r
4785 Writes the current value of KR1. The 64-bit value written to \r
1a2f870c 4786 the KR1 is returned. This function is only available on Itanium processors.\r
ac644614 4787\r
ee6c452c 4788 @param Value The 64-bit value to write to KR1.\r
ac644614 4789\r
4790 @return The 64-bit value written to the KR1.\r
4791\r
4792**/\r
4793UINT64\r
4794EFIAPI\r
4795AsmWriteKr1 (\r
4796 IN UINT64 Value\r
4797 );\r
4798\r
4799\r
4800/**\r
4801 Write the current value of 64-bit Kernel Register #2 (KR2).\r
2fe241a2 4802\r
4803 Writes the current value of KR2. The 64-bit value written to \r
1a2f870c 4804 the KR2 is returned. This function is only available on Itanium processors.\r
ac644614 4805\r
ee6c452c 4806 @param Value The 64-bit value to write to KR2.\r
ac644614 4807\r
4808 @return The 64-bit value written to the KR2.\r
4809\r
4810**/\r
4811UINT64\r
4812EFIAPI\r
4813AsmWriteKr2 (\r
4814 IN UINT64 Value\r
4815 );\r
4816\r
4817\r
4818/**\r
4819 Write the current value of 64-bit Kernel Register #3 (KR3).\r
2fe241a2 4820\r
4821 Writes the current value of KR3. The 64-bit value written to \r
1a2f870c 4822 the KR3 is returned. This function is only available on Itanium processors.\r
ac644614 4823\r
ee6c452c 4824 @param Value The 64-bit value to write to KR3.\r
ac644614 4825\r
4826 @return The 64-bit value written to the KR3.\r
4827\r
4828**/\r
4829UINT64\r
4830EFIAPI\r
4831AsmWriteKr3 (\r
4832 IN UINT64 Value\r
4833 );\r
4834\r
4835\r
4836/**\r
4837 Write the current value of 64-bit Kernel Register #4 (KR4).\r
2fe241a2 4838\r
4839 Writes the current value of KR4. The 64-bit value written to \r
1a2f870c 4840 the KR4 is returned. This function is only available on Itanium processors.\r
ac644614 4841\r
ee6c452c 4842 @param Value The 64-bit value to write to KR4.\r
ac644614 4843\r
4844 @return The 64-bit value written to the KR4.\r
4845\r
4846**/\r
4847UINT64\r
4848EFIAPI\r
4849AsmWriteKr4 (\r
4850 IN UINT64 Value\r
4851 );\r
4852\r
4853\r
4854/**\r
4855 Write the current value of 64-bit Kernel Register #5 (KR5).\r
2fe241a2 4856\r
4857 Writes the current value of KR5. The 64-bit value written to \r
1a2f870c 4858 the KR5 is returned. This function is only available on Itanium processors.\r
ac644614 4859\r
ee6c452c 4860 @param Value The 64-bit value to write to KR5.\r
ac644614 4861\r
4862 @return The 64-bit value written to the KR5.\r
4863\r
4864**/\r
4865UINT64\r
4866EFIAPI\r
4867AsmWriteKr5 (\r
4868 IN UINT64 Value\r
4869 );\r
4870\r
4871\r
4872/**\r
4873 Write the current value of 64-bit Kernel Register #6 (KR6).\r
2fe241a2 4874\r
4875 Writes the current value of KR6. The 64-bit value written to \r
1a2f870c 4876 the KR6 is returned. This function is only available on Itanium processors.\r
ac644614 4877\r
ee6c452c 4878 @param Value The 64-bit value to write to KR6.\r
ac644614 4879\r
4880 @return The 64-bit value written to the KR6.\r
4881\r
4882**/\r
4883UINT64\r
4884EFIAPI\r
4885AsmWriteKr6 (\r
4886 IN UINT64 Value\r
4887 );\r
4888\r
4889\r
4890/**\r
4891 Write the current value of 64-bit Kernel Register #7 (KR7).\r
2fe241a2 4892\r
4893 Writes the current value of KR7. The 64-bit value written to \r
1a2f870c 4894 the KR7 is returned. This function is only available on Itanium processors.\r
ac644614 4895\r
ee6c452c 4896 @param Value The 64-bit value to write to KR7.\r
ac644614 4897\r
4898 @return The 64-bit value written to the KR7.\r
4899\r
4900**/\r
4901UINT64\r
4902EFIAPI\r
4903AsmWriteKr7 (\r
4904 IN UINT64 Value\r
4905 );\r
4906\r
4907\r
4908/**\r
4909 Reads the current value of Interval Timer Counter Register (ITC).\r
2fe241a2 4910 \r
4911 Reads and returns the current value of ITC.\r
1a2f870c 4912 This function is only available on Itanium processors.\r
ac644614 4913\r
4914 @return The current value of ITC.\r
4915\r
4916**/\r
4917UINT64\r
4918EFIAPI\r
4919AsmReadItc (\r
4920 VOID\r
4921 );\r
4922\r
4923\r
4924/**\r
4925 Reads the current value of Interval Timer Vector Register (ITV).\r
2fe241a2 4926 \r
4927 Reads and returns the current value of ITV. \r
1a2f870c 4928 This function is only available on Itanium processors.\r
ac644614 4929\r
4930 @return The current value of ITV.\r
4931\r
4932**/\r
4933UINT64\r
4934EFIAPI\r
4935AsmReadItv (\r
4936 VOID\r
4937 );\r
4938\r
4939\r
4940/**\r
4941 Reads the current value of Interval Timer Match Register (ITM).\r
2fe241a2 4942 \r
4943 Reads and returns the current value of ITM.\r
1a2f870c 4944 This function is only available on Itanium processors.\r
ac644614 4945\r
4946 @return The current value of ITM.\r
4947**/\r
4948UINT64\r
4949EFIAPI\r
4950AsmReadItm (\r
4951 VOID\r
4952 );\r
4953\r
4954\r
4955/**\r
4956 Writes the current value of 64-bit Interval Timer Counter Register (ITC).\r
2fe241a2 4957 \r
4958 Writes the current value of ITC. The 64-bit value written to the ITC is returned. \r
1a2f870c 4959 This function is only available on Itanium processors.\r
ac644614 4960\r
ee6c452c 4961 @param Value The 64-bit value to write to ITC.\r
ac644614 4962\r
4963 @return The 64-bit value written to the ITC.\r
4964\r
4965**/\r
4966UINT64\r
4967EFIAPI\r
4968AsmWriteItc (\r
4969 IN UINT64 Value\r
4970 );\r
4971\r
4972\r
4973/**\r
4974 Writes the current value of 64-bit Interval Timer Match Register (ITM).\r
2fe241a2 4975 \r
4976 Writes the current value of ITM. The 64-bit value written to the ITM is returned. \r
1a2f870c 4977 This function is only available on Itanium processors.\r
ac644614 4978\r
ee6c452c 4979 @param Value The 64-bit value to write to ITM.\r
ac644614 4980\r
4981 @return The 64-bit value written to the ITM.\r
4982\r
4983**/\r
4984UINT64\r
4985EFIAPI\r
4986AsmWriteItm (\r
4987 IN UINT64 Value\r
4988 );\r
4989\r
4990\r
4991/**\r
4992 Writes the current value of 64-bit Interval Timer Vector Register (ITV).\r
2fe241a2 4993 \r
4994 Writes the current value of ITV. The 64-bit value written to the ITV is returned. \r
ac644614 4995 No parameter checking is performed on Value. All bits of Value corresponding to\r
4996 reserved fields of ITV must be 0 or a Reserved Register/Field fault may occur.\r
4997 The caller must either guarantee that Value is valid, or the caller must set up\r
4998 fault handlers to catch the faults.\r
1a2f870c 4999 This function is only available on Itanium processors.\r
ac644614 5000\r
ee6c452c 5001 @param Value The 64-bit value to write to ITV.\r
ac644614 5002\r
5003 @return The 64-bit value written to the ITV.\r
5004\r
5005**/\r
5006UINT64\r
5007EFIAPI\r
5008AsmWriteItv (\r
5009 IN UINT64 Value\r
5010 );\r
5011\r
5012\r
5013/**\r
5014 Reads the current value of Default Control Register (DCR).\r
2fe241a2 5015 \r
1a2f870c 5016 Reads and returns the current value of DCR. This function is only available on Itanium processors.\r
ac644614 5017\r
5018 @return The current value of DCR.\r
5019\r
5020**/\r
5021UINT64\r
5022EFIAPI\r
5023AsmReadDcr (\r
5024 VOID\r
5025 );\r
5026\r
5027\r
5028/**\r
5029 Reads the current value of Interruption Vector Address Register (IVA).\r
2fe241a2 5030 \r
1a2f870c 5031 Reads and returns the current value of IVA. This function is only available on Itanium processors.\r
ac644614 5032\r
5033 @return The current value of IVA.\r
5034**/\r
5035UINT64\r
5036EFIAPI\r
5037AsmReadIva (\r
5038 VOID\r
5039 );\r
5040\r
5041\r
5042/**\r
5043 Reads the current value of Page Table Address Register (PTA).\r
2fe241a2 5044 \r
1a2f870c 5045 Reads and returns the current value of PTA. This function is only available on Itanium processors.\r
ac644614 5046\r
5047 @return The current value of PTA.\r
5048\r
5049**/\r
5050UINT64\r
5051EFIAPI\r
5052AsmReadPta (\r
5053 VOID\r
5054 );\r
5055\r
5056\r
5057/**\r
5058 Writes the current value of 64-bit Default Control Register (DCR).\r
2fe241a2 5059 \r
5060 Writes the current value of DCR. The 64-bit value written to the DCR is returned. \r
ac644614 5061 No parameter checking is performed on Value. All bits of Value corresponding to\r
5062 reserved fields of DCR must be 0 or a Reserved Register/Field fault may occur.\r
5063 The caller must either guarantee that Value is valid, or the caller must set up\r
5064 fault handlers to catch the faults.\r
1a2f870c 5065 This function is only available on Itanium processors.\r
ac644614 5066\r
ee6c452c 5067 @param Value The 64-bit value to write to DCR.\r
ac644614 5068\r
5069 @return The 64-bit value written to the DCR.\r
5070\r
5071**/\r
5072UINT64\r
5073EFIAPI\r
5074AsmWriteDcr (\r
5075 IN UINT64 Value\r
5076 );\r
5077\r
5078\r
5079/**\r
5080 Writes the current value of 64-bit Interruption Vector Address Register (IVA).\r
2fe241a2 5081 \r
5082 Writes the current value of IVA. The 64-bit value written to the IVA is returned. \r
ac644614 5083 The size of vector table is 32 K bytes and is 32 K bytes aligned\r
5084 the low 15 bits of Value is ignored when written.\r
1a2f870c 5085 This function is only available on Itanium processors.\r
ac644614 5086\r
ee6c452c 5087 @param Value The 64-bit value to write to IVA.\r
ac644614 5088\r
5089 @return The 64-bit value written to the IVA.\r
5090\r
5091**/\r
5092UINT64\r
5093EFIAPI\r
5094AsmWriteIva (\r
5095 IN UINT64 Value\r
5096 );\r
5097\r
5098\r
5099/**\r
5100 Writes the current value of 64-bit Page Table Address Register (PTA).\r
2fe241a2 5101 \r
5102 Writes the current value of PTA. The 64-bit value written to the PTA is returned. \r
ac644614 5103 No parameter checking is performed on Value. All bits of Value corresponding to\r
5104 reserved fields of DCR must be 0 or a Reserved Register/Field fault may occur.\r
5105 The caller must either guarantee that Value is valid, or the caller must set up\r
5106 fault handlers to catch the faults.\r
1a2f870c 5107 This function is only available on Itanium processors.\r
ac644614 5108\r
ee6c452c 5109 @param Value The 64-bit value to write to PTA.\r
ac644614 5110\r
5111 @return The 64-bit value written to the PTA.\r
5112**/\r
5113UINT64\r
5114EFIAPI\r
5115AsmWritePta (\r
5116 IN UINT64 Value\r
5117 );\r
5118\r
5119\r
5120/**\r
5121 Reads the current value of Local Interrupt ID Register (LID).\r
2fe241a2 5122 \r
1a2f870c 5123 Reads and returns the current value of LID. This function is only available on Itanium processors.\r
ac644614 5124\r
5125 @return The current value of LID.\r
5126\r
5127**/\r
5128UINT64\r
5129EFIAPI\r
5130AsmReadLid (\r
5131 VOID\r
5132 );\r
5133\r
5134\r
5135/**\r
5136 Reads the current value of External Interrupt Vector Register (IVR).\r
2fe241a2 5137 \r
1a2f870c 5138 Reads and returns the current value of IVR. This function is only available on Itanium processors. \r
ac644614 5139\r
5140 @return The current value of IVR.\r
5141\r
5142**/\r
5143UINT64\r
5144EFIAPI\r
5145AsmReadIvr (\r
5146 VOID\r
5147 );\r
5148\r
5149\r
5150/**\r
5151 Reads the current value of Task Priority Register (TPR).\r
2fe241a2 5152 \r
1a2f870c 5153 Reads and returns the current value of TPR. This function is only available on Itanium processors. \r
ac644614 5154\r
5155 @return The current value of TPR.\r
5156\r
5157**/\r
5158UINT64\r
5159EFIAPI\r
5160AsmReadTpr (\r
5161 VOID\r
5162 );\r
5163\r
5164\r
5165/**\r
5166 Reads the current value of External Interrupt Request Register #0 (IRR0).\r
2fe241a2 5167 \r
1a2f870c 5168 Reads and returns the current value of IRR0. This function is only available on Itanium processors. \r
ac644614 5169\r
5170 @return The current value of IRR0.\r
5171\r
5172**/\r
5173UINT64\r
5174EFIAPI\r
5175AsmReadIrr0 (\r
5176 VOID\r
5177 );\r
5178\r
5179\r
5180/**\r
5181 Reads the current value of External Interrupt Request Register #1 (IRR1).\r
2fe241a2 5182 \r
1a2f870c 5183 Reads and returns the current value of IRR1. This function is only available on Itanium processors. \r
ac644614 5184\r
5185 @return The current value of IRR1.\r
5186\r
5187**/\r
5188UINT64\r
5189EFIAPI\r
5190AsmReadIrr1 (\r
5191 VOID\r
5192 );\r
5193\r
5194\r
5195/**\r
5196 Reads the current value of External Interrupt Request Register #2 (IRR2).\r
2fe241a2 5197 \r
1a2f870c 5198 Reads and returns the current value of IRR2. This function is only available on Itanium processors.\r
ac644614 5199\r
5200 @return The current value of IRR2.\r
5201\r
5202**/\r
5203UINT64\r
5204EFIAPI\r
5205AsmReadIrr2 (\r
5206 VOID\r
5207 );\r
5208\r
5209\r
5210/**\r
5211 Reads the current value of External Interrupt Request Register #3 (IRR3).\r
2fe241a2 5212 \r
1a2f870c 5213 Reads and returns the current value of IRR3. This function is only available on Itanium processors. \r
ac644614 5214\r
5215 @return The current value of IRR3.\r
5216\r
5217**/\r
5218UINT64\r
5219EFIAPI\r
5220AsmReadIrr3 (\r
5221 VOID\r
5222 );\r
5223\r
5224\r
5225/**\r
5226 Reads the current value of Performance Monitor Vector Register (PMV).\r
2fe241a2 5227 \r
1a2f870c 5228 Reads and returns the current value of PMV. This function is only available on Itanium processors. \r
ac644614 5229\r
5230 @return The current value of PMV.\r
5231\r
5232**/\r
5233UINT64\r
5234EFIAPI\r
5235AsmReadPmv (\r
5236 VOID\r
5237 );\r
5238\r
5239\r
5240/**\r
5241 Reads the current value of Corrected Machine Check Vector Register (CMCV).\r
2fe241a2 5242 \r
1a2f870c 5243 Reads and returns the current value of CMCV. This function is only available on Itanium processors.\r
ac644614 5244\r
5245 @return The current value of CMCV.\r
5246\r
5247**/\r
5248UINT64\r
5249EFIAPI\r
5250AsmReadCmcv (\r
5251 VOID\r
5252 );\r
5253\r
5254\r
5255/**\r
5256 Reads the current value of Local Redirection Register #0 (LRR0).\r
2fe241a2 5257 \r
1a2f870c 5258 Reads and returns the current value of LRR0. This function is only available on Itanium processors. \r
ac644614 5259\r
5260 @return The current value of LRR0.\r
5261\r
5262**/\r
5263UINT64\r
5264EFIAPI\r
5265AsmReadLrr0 (\r
5266 VOID\r
5267 );\r
5268\r
5269\r
5270/**\r
5271 Reads the current value of Local Redirection Register #1 (LRR1).\r
2fe241a2 5272 \r
1a2f870c 5273 Reads and returns the current value of LRR1. This function is only available on Itanium processors.\r
ac644614 5274\r
5275 @return The current value of LRR1.\r
5276\r
5277**/\r
5278UINT64\r
5279EFIAPI\r
5280AsmReadLrr1 (\r
5281 VOID\r
5282 );\r
5283\r
5284\r
5285/**\r
5286 Writes the current value of 64-bit Page Local Interrupt ID Register (LID).\r
2fe241a2 5287 \r
5288 Writes the current value of LID. The 64-bit value written to the LID is returned. \r
ac644614 5289 No parameter checking is performed on Value. All bits of Value corresponding to\r
5290 reserved fields of LID must be 0 or a Reserved Register/Field fault may occur.\r
5291 The caller must either guarantee that Value is valid, or the caller must set up\r
5292 fault handlers to catch the faults.\r
1a2f870c 5293 This function is only available on Itanium processors.\r
ac644614 5294\r
ee6c452c 5295 @param Value The 64-bit value to write to LID.\r
ac644614 5296\r
5297 @return The 64-bit value written to the LID.\r
5298\r
5299**/\r
5300UINT64\r
5301EFIAPI\r
5302AsmWriteLid (\r
5303 IN UINT64 Value\r
5304 );\r
5305\r
5306\r
5307/**\r
5308 Writes the current value of 64-bit Task Priority Register (TPR).\r
2fe241a2 5309 \r
5310 Writes the current value of TPR. The 64-bit value written to the TPR is returned. \r
ac644614 5311 No parameter checking is performed on Value. All bits of Value corresponding to\r
5312 reserved fields of TPR must be 0 or a Reserved Register/Field fault may occur.\r
5313 The caller must either guarantee that Value is valid, or the caller must set up\r
5314 fault handlers to catch the faults.\r
1a2f870c 5315 This function is only available on Itanium processors.\r
ac644614 5316\r
ee6c452c 5317 @param Value The 64-bit value to write to TPR.\r
ac644614 5318\r
5319 @return The 64-bit value written to the TPR.\r
5320\r
5321**/\r
5322UINT64\r
5323EFIAPI\r
5324AsmWriteTpr (\r
5325 IN UINT64 Value\r
5326 );\r
5327\r
5328\r
5329/**\r
5330 Performs a write operation on End OF External Interrupt Register (EOI).\r
2fe241a2 5331 \r
1a2f870c 5332 Writes a value of 0 to the EOI Register. This function is only available on Itanium processors.\r
ac644614 5333\r
5334**/\r
5335VOID\r
5336EFIAPI\r
5337AsmWriteEoi (\r
5338 VOID\r
5339 );\r
5340\r
5341\r
5342/**\r
5343 Writes the current value of 64-bit Performance Monitor Vector Register (PMV).\r
2fe241a2 5344 \r
5345 Writes the current value of PMV. The 64-bit value written to the PMV is returned. \r
ac644614 5346 No parameter checking is performed on Value. All bits of Value corresponding\r
5347 to reserved fields of PMV must be 0 or a Reserved Register/Field fault may occur.\r
5348 The caller must either guarantee that Value is valid, or the caller must set up\r
5349 fault handlers to catch the faults.\r
1a2f870c 5350 This function is only available on Itanium processors.\r
ac644614 5351\r
ee6c452c 5352 @param Value The 64-bit value to write to PMV.\r
ac644614 5353\r
5354 @return The 64-bit value written to the PMV.\r
5355\r
5356**/\r
5357UINT64\r
5358EFIAPI\r
5359AsmWritePmv (\r
5360 IN UINT64 Value\r
5361 );\r
5362\r
5363\r
5364/**\r
5365 Writes the current value of 64-bit Corrected Machine Check Vector Register (CMCV).\r
2fe241a2 5366 \r
5367 Writes the current value of CMCV. The 64-bit value written to the CMCV is returned. \r
ac644614 5368 No parameter checking is performed on Value. All bits of Value corresponding\r
5369 to reserved fields of CMCV must be 0 or a Reserved Register/Field fault may occur.\r
5370 The caller must either guarantee that Value is valid, or the caller must set up\r
5371 fault handlers to catch the faults.\r
1a2f870c 5372 This function is only available on Itanium processors.\r
ac644614 5373\r
ee6c452c 5374 @param Value The 64-bit value to write to CMCV.\r
ac644614 5375\r
5376 @return The 64-bit value written to the CMCV.\r
5377\r
5378**/\r
5379UINT64\r
5380EFIAPI\r
5381AsmWriteCmcv (\r
5382 IN UINT64 Value\r
5383 );\r
5384\r
5385\r
5386/**\r
5387 Writes the current value of 64-bit Local Redirection Register #0 (LRR0).\r
2fe241a2 5388 \r
5389 Writes the current value of LRR0. The 64-bit value written to the LRR0 is returned. \r
ac644614 5390 No parameter checking is performed on Value. All bits of Value corresponding\r
5391 to reserved fields of LRR0 must be 0 or a Reserved Register/Field fault may occur.\r
5392 The caller must either guarantee that Value is valid, or the caller must set up\r
5393 fault handlers to catch the faults.\r
1a2f870c 5394 This function is only available on Itanium processors.\r
ac644614 5395\r
ee6c452c 5396 @param Value The 64-bit value to write to LRR0.\r
ac644614 5397\r
5398 @return The 64-bit value written to the LRR0.\r
5399\r
5400**/\r
5401UINT64\r
5402EFIAPI\r
5403AsmWriteLrr0 (\r
5404 IN UINT64 Value\r
5405 );\r
5406\r
5407\r
5408/**\r
5409 Writes the current value of 64-bit Local Redirection Register #1 (LRR1).\r
2fe241a2 5410 \r
5411 Writes the current value of LRR1. The 64-bit value written to the LRR1 is returned. \r
ac644614 5412 No parameter checking is performed on Value. All bits of Value corresponding\r
5413 to reserved fields of LRR1 must be 0 or a Reserved Register/Field fault may occur.\r
5414 The caller must either guarantee that Value is valid, or the caller must\r
5415 set up fault handlers to catch the faults.\r
1a2f870c 5416 This function is only available on Itanium processors.\r
ac644614 5417\r
ee6c452c 5418 @param Value The 64-bit value to write to LRR1.\r
ac644614 5419\r
5420 @return The 64-bit value written to the LRR1.\r
5421\r
5422**/\r
5423UINT64\r
5424EFIAPI\r
5425AsmWriteLrr1 (\r
5426 IN UINT64 Value\r
5427 );\r
5428\r
5429\r
5430/**\r
5431 Reads the current value of Instruction Breakpoint Register (IBR).\r
5432 \r
5433 The Instruction Breakpoint Registers are used in pairs. The even numbered\r
5434 registers contain breakpoint addresses, and the odd numbered registers contain\r
af2dc6a7 5435 breakpoint mask conditions. At least four instruction registers pairs are implemented\r
ac644614 5436 on all processor models. Implemented registers are contiguous starting with\r
5437 register 0. No parameter checking is performed on Index, and if the Index value\r
5438 is beyond the implemented IBR register range, a Reserved Register/Field fault may\r
5439 occur. The caller must either guarantee that Index is valid, or the caller must\r
5440 set up fault handlers to catch the faults.\r
1a2f870c 5441 This function is only available on Itanium processors.\r
ac644614 5442\r
ee6c452c 5443 @param Index The 8-bit Instruction Breakpoint Register index to read.\r
ac644614 5444\r
5445 @return The current value of Instruction Breakpoint Register specified by Index.\r
5446\r
5447**/\r
5448UINT64\r
5449EFIAPI\r
5450AsmReadIbr (\r
5451 IN UINT8 Index\r
5452 );\r
5453\r
5454\r
5455/**\r
5456 Reads the current value of Data Breakpoint Register (DBR).\r
5457\r
5458 The Data Breakpoint Registers are used in pairs. The even numbered registers\r
5459 contain breakpoint addresses, and odd numbered registers contain breakpoint\r
af2dc6a7 5460 mask conditions. At least four data registers pairs are implemented on all processor\r
ac644614 5461 models. Implemented registers are contiguous starting with register 0.\r
5462 No parameter checking is performed on Index. If the Index value is beyond\r
5463 the implemented DBR register range, a Reserved Register/Field fault may occur.\r
5464 The caller must either guarantee that Index is valid, or the caller must set up\r
5465 fault handlers to catch the faults.\r
1a2f870c 5466 This function is only available on Itanium processors.\r
ac644614 5467\r
ee6c452c 5468 @param Index The 8-bit Data Breakpoint Register index to read.\r
ac644614 5469\r
5470 @return The current value of Data Breakpoint Register specified by Index.\r
5471\r
5472**/\r
5473UINT64\r
5474EFIAPI\r
5475AsmReadDbr (\r
5476 IN UINT8 Index\r
5477 );\r
5478\r
5479\r
5480/**\r
5481 Reads the current value of Performance Monitor Configuration Register (PMC).\r
5482\r
af2dc6a7 5483 All processor implementations provide at least four performance counters\r
5484 (PMC/PMD [4]...PMC/PMD [7] pairs), and four performance monitor counter overflow\r
ac644614 5485 status registers (PMC [0]... PMC [3]). Processor implementations may provide\r
5486 additional implementation-dependent PMC and PMD to increase the number of\r
5487 'generic' performance counters (PMC/PMD pairs). The remainder of PMC and PMD\r
5488 register set is implementation dependent. No parameter checking is performed\r
5489 on Index. If the Index value is beyond the implemented PMC register range,\r
5490 zero value will be returned.\r
1a2f870c 5491 This function is only available on Itanium processors.\r
ac644614 5492\r
ee6c452c 5493 @param Index The 8-bit Performance Monitor Configuration Register index to read.\r
ac644614 5494\r
2fe241a2 5495 @return The current value of Performance Monitor Configuration Register\r
5496 specified by Index.\r
ac644614 5497\r
5498**/\r
5499UINT64\r
5500EFIAPI\r
5501AsmReadPmc (\r
5502 IN UINT8 Index\r
5503 );\r
5504\r
5505\r
5506/**\r
5507 Reads the current value of Performance Monitor Data Register (PMD).\r
5508\r
5509 All processor implementations provide at least 4 performance counters\r
5510 (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter\r
5511 overflow status registers (PMC [0]... PMC [3]). Processor implementations may\r
5512 provide additional implementation-dependent PMC and PMD to increase the number\r
5513 of 'generic' performance counters (PMC/PMD pairs). The remainder of PMC and PMD\r
5514 register set is implementation dependent. No parameter checking is performed\r
5515 on Index. If the Index value is beyond the implemented PMD register range,\r
5516 zero value will be returned.\r
1a2f870c 5517 This function is only available on Itanium processors.\r
ac644614 5518\r
ee6c452c 5519 @param Index The 8-bit Performance Monitor Data Register index to read.\r
ac644614 5520\r
5521 @return The current value of Performance Monitor Data Register specified by Index.\r
5522\r
5523**/\r
5524UINT64\r
5525EFIAPI\r
5526AsmReadPmd (\r
5527 IN UINT8 Index\r
5528 );\r
5529\r
5530\r
5531/**\r
5532 Writes the current value of 64-bit Instruction Breakpoint Register (IBR).\r
5533\r
5534 Writes current value of Instruction Breakpoint Register specified by Index.\r
5535 The Instruction Breakpoint Registers are used in pairs. The even numbered\r
5536 registers contain breakpoint addresses, and odd numbered registers contain\r
af2dc6a7 5537 breakpoint mask conditions. At least four instruction registers pairs are implemented\r
ac644614 5538 on all processor models. Implemented registers are contiguous starting with\r
5539 register 0. No parameter checking is performed on Index. If the Index value\r
5540 is beyond the implemented IBR register range, a Reserved Register/Field fault may\r
5541 occur. The caller must either guarantee that Index is valid, or the caller must\r
5542 set up fault handlers to catch the faults.\r
1a2f870c 5543 This function is only available on Itanium processors.\r
ac644614 5544\r
ee6c452c 5545 @param Index The 8-bit Instruction Breakpoint Register index to write.\r
5546 @param Value The 64-bit value to write to IBR.\r
ac644614 5547\r
5548 @return The 64-bit value written to the IBR.\r
5549\r
5550**/\r
5551UINT64\r
5552EFIAPI\r
5553AsmWriteIbr (\r
5554 IN UINT8 Index,\r
5555 IN UINT64 Value\r
5556 );\r
5557\r
5558\r
5559/**\r
5560 Writes the current value of 64-bit Data Breakpoint Register (DBR).\r
5561\r
5562 Writes current value of Data Breakpoint Register specified by Index.\r
5563 The Data Breakpoint Registers are used in pairs. The even numbered registers\r
5564 contain breakpoint addresses, and odd numbered registers contain breakpoint\r
af2dc6a7 5565 mask conditions. At least four data registers pairs are implemented on all processor\r
ac644614 5566 models. Implemented registers are contiguous starting with register 0. No parameter\r
5567 checking is performed on Index. If the Index value is beyond the implemented\r
5568 DBR register range, a Reserved Register/Field fault may occur. The caller must\r
5569 either guarantee that Index is valid, or the caller must set up fault handlers to\r
5570 catch the faults.\r
1a2f870c 5571 This function is only available on Itanium processors.\r
ac644614 5572\r
ee6c452c 5573 @param Index The 8-bit Data Breakpoint Register index to write.\r
5574 @param Value The 64-bit value to write to DBR.\r
ac644614 5575\r
5576 @return The 64-bit value written to the DBR.\r
5577\r
5578**/\r
5579UINT64\r
5580EFIAPI\r
5581AsmWriteDbr (\r
5582 IN UINT8 Index,\r
5583 IN UINT64 Value\r
5584 );\r
5585\r
5586\r
5587/**\r
5588 Writes the current value of 64-bit Performance Monitor Configuration Register (PMC).\r
5589\r
5590 Writes current value of Performance Monitor Configuration Register specified by Index.\r
af2dc6a7 5591 All processor implementations provide at least four performance counters\r
5592 (PMC/PMD [4]...PMC/PMD [7] pairs), and four performance monitor counter overflow status\r
ac644614 5593 registers (PMC [0]... PMC [3]). Processor implementations may provide additional\r
5594 implementation-dependent PMC and PMD to increase the number of 'generic' performance\r
5595 counters (PMC/PMD pairs). The remainder of PMC and PMD register set is implementation\r
5596 dependent. No parameter checking is performed on Index. If the Index value is\r
5597 beyond the implemented PMC register range, the write is ignored.\r
1a2f870c 5598 This function is only available on Itanium processors.\r
ac644614 5599\r
ee6c452c 5600 @param Index The 8-bit Performance Monitor Configuration Register index to write.\r
5601 @param Value The 64-bit value to write to PMC.\r
ac644614 5602\r
5603 @return The 64-bit value written to the PMC.\r
5604\r
5605**/\r
5606UINT64\r
5607EFIAPI\r
5608AsmWritePmc (\r
5609 IN UINT8 Index,\r
5610 IN UINT64 Value\r
5611 );\r
5612\r
5613\r
5614/**\r
5615 Writes the current value of 64-bit Performance Monitor Data Register (PMD).\r
5616\r
5617 Writes current value of Performance Monitor Data Register specified by Index.\r
af2dc6a7 5618 All processor implementations provide at least four performance counters\r
5619 (PMC/PMD [4]...PMC/PMD [7] pairs), and four performance monitor counter overflow\r
ac644614 5620 status registers (PMC [0]... PMC [3]). Processor implementations may provide\r
5621 additional implementation-dependent PMC and PMD to increase the number of 'generic'\r
5622 performance counters (PMC/PMD pairs). The remainder of PMC and PMD register set\r
5623 is implementation dependent. No parameter checking is performed on Index. If the\r
5624 Index value is beyond the implemented PMD register range, the write is ignored.\r
1a2f870c 5625 This function is only available on Itanium processors.\r
ac644614 5626\r
ee6c452c 5627 @param Index The 8-bit Performance Monitor Data Register index to write.\r
5628 @param Value The 64-bit value to write to PMD.\r
ac644614 5629\r
5630 @return The 64-bit value written to the PMD.\r
5631\r
5632**/\r
5633UINT64\r
5634EFIAPI\r
5635AsmWritePmd (\r
5636 IN UINT8 Index,\r
5637 IN UINT64 Value\r
5638 );\r
5639\r
5640\r
5641/**\r
5642 Reads the current value of 64-bit Global Pointer (GP).\r
5643\r
5644 Reads and returns the current value of GP.\r
1a2f870c 5645 This function is only available on Itanium processors.\r
ac644614 5646\r
5647 @return The current value of GP.\r
5648\r
5649**/\r
5650UINT64\r
5651EFIAPI\r
5652AsmReadGp (\r
5653 VOID\r
5654 );\r
5655\r
5656\r
5657/**\r
5658 Write the current value of 64-bit Global Pointer (GP).\r
5659\r
5660 Writes the current value of GP. The 64-bit value written to the GP is returned.\r
5661 No parameter checking is performed on Value.\r
1a2f870c 5662 This function is only available on Itanium processors.\r
ac644614 5663\r
5664 @param Value The 64-bit value to write to GP.\r
5665\r
5666 @return The 64-bit value written to the GP.\r
5667\r
5668**/\r
5669UINT64\r
5670EFIAPI\r
5671AsmWriteGp (\r
5672 IN UINT64 Value\r
5673 );\r
5674\r
5675\r
5676/**\r
5677 Reads the current value of 64-bit Stack Pointer (SP).\r
5678\r
5679 Reads and returns the current value of SP.\r
1a2f870c 5680 This function is only available on Itanium processors.\r
ac644614 5681\r
5682 @return The current value of SP.\r
5683\r
5684**/\r
5685UINT64\r
5686EFIAPI\r
5687AsmReadSp (\r
5688 VOID\r
5689 );\r
5690\r
5691\r
aad6137d 5692///\r
af2dc6a7 5693/// Valid Index value for AsmReadControlRegister().\r
aad6137d 5694///\r
5695#define IPF_CONTROL_REGISTER_DCR 0\r
5696#define IPF_CONTROL_REGISTER_ITM 1\r
5697#define IPF_CONTROL_REGISTER_IVA 2\r
5698#define IPF_CONTROL_REGISTER_PTA 8\r
5699#define IPF_CONTROL_REGISTER_IPSR 16\r
5700#define IPF_CONTROL_REGISTER_ISR 17\r
5701#define IPF_CONTROL_REGISTER_IIP 19\r
5702#define IPF_CONTROL_REGISTER_IFA 20\r
5703#define IPF_CONTROL_REGISTER_ITIR 21\r
5704#define IPF_CONTROL_REGISTER_IIPA 22\r
5705#define IPF_CONTROL_REGISTER_IFS 23\r
5706#define IPF_CONTROL_REGISTER_IIM 24\r
5707#define IPF_CONTROL_REGISTER_IHA 25\r
5708#define IPF_CONTROL_REGISTER_LID 64\r
5709#define IPF_CONTROL_REGISTER_IVR 65\r
5710#define IPF_CONTROL_REGISTER_TPR 66\r
5711#define IPF_CONTROL_REGISTER_EOI 67\r
5712#define IPF_CONTROL_REGISTER_IRR0 68\r
5713#define IPF_CONTROL_REGISTER_IRR1 69\r
5714#define IPF_CONTROL_REGISTER_IRR2 70\r
5715#define IPF_CONTROL_REGISTER_IRR3 71\r
5716#define IPF_CONTROL_REGISTER_ITV 72\r
5717#define IPF_CONTROL_REGISTER_PMV 73\r
5718#define IPF_CONTROL_REGISTER_CMCV 74\r
5719#define IPF_CONTROL_REGISTER_LRR0 80\r
5720#define IPF_CONTROL_REGISTER_LRR1 81\r
5721\r
5722/**\r
5723 Reads a 64-bit control register.\r
5724\r
af2dc6a7 5725 Reads and returns the control register specified by Index. The valid Index valued \r
5726 are defined above in "Related Definitions".\r
5727 If Index is invalid then 0xFFFFFFFFFFFFFFFF is returned. This function is only \r
5728 available on Itanium processors.\r
aad6137d 5729\r
5730 @param Index The index of the control register to read.\r
5731\r
5732 @return The control register specified by Index.\r
5733\r
5734**/\r
5735UINT64\r
5736EFIAPI\r
5737AsmReadControlRegister (\r
5738 IN UINT64 Index\r
5739 );\r
5740\r
5741\r
5742///\r
af2dc6a7 5743/// Valid Index value for AsmReadApplicationRegister().\r
aad6137d 5744///\r
5745#define IPF_APPLICATION_REGISTER_K0 0\r
5746#define IPF_APPLICATION_REGISTER_K1 1\r
5747#define IPF_APPLICATION_REGISTER_K2 2\r
5748#define IPF_APPLICATION_REGISTER_K3 3\r
5749#define IPF_APPLICATION_REGISTER_K4 4\r
5750#define IPF_APPLICATION_REGISTER_K5 5\r
5751#define IPF_APPLICATION_REGISTER_K6 6\r
5752#define IPF_APPLICATION_REGISTER_K7 7\r
5753#define IPF_APPLICATION_REGISTER_RSC 16\r
5754#define IPF_APPLICATION_REGISTER_BSP 17\r
5755#define IPF_APPLICATION_REGISTER_BSPSTORE 18\r
5756#define IPF_APPLICATION_REGISTER_RNAT 19\r
5757#define IPF_APPLICATION_REGISTER_FCR 21\r
5758#define IPF_APPLICATION_REGISTER_EFLAG 24\r
5759#define IPF_APPLICATION_REGISTER_CSD 25\r
5760#define IPF_APPLICATION_REGISTER_SSD 26\r
5761#define IPF_APPLICATION_REGISTER_CFLG 27\r
5762#define IPF_APPLICATION_REGISTER_FSR 28\r
5763#define IPF_APPLICATION_REGISTER_FIR 29\r
5764#define IPF_APPLICATION_REGISTER_FDR 30\r
5765#define IPF_APPLICATION_REGISTER_CCV 32\r
5766#define IPF_APPLICATION_REGISTER_UNAT 36\r
5767#define IPF_APPLICATION_REGISTER_FPSR 40\r
5768#define IPF_APPLICATION_REGISTER_ITC 44\r
5769#define IPF_APPLICATION_REGISTER_PFS 64\r
5770#define IPF_APPLICATION_REGISTER_LC 65\r
5771#define IPF_APPLICATION_REGISTER_EC 66\r
5772\r
5773/**\r
5774 Reads a 64-bit application register.\r
5775\r
af2dc6a7 5776 Reads and returns the application register specified by Index. The valid Index \r
5777 valued are defined above in "Related Definitions".\r
5778 If Index is invalid then 0xFFFFFFFFFFFFFFFF is returned. This function is only \r
5779 available on Itanium processors.\r
aad6137d 5780\r
5781 @param Index The index of the application register to read.\r
5782\r
5783 @return The application register specified by Index.\r
5784\r
5785**/\r
5786UINT64\r
5787EFIAPI\r
5788AsmReadApplicationRegister (\r
5789 IN UINT64 Index\r
5790 );\r
5791\r
5792\r
59e0bb0c 5793/**\r
5794 Reads the current value of a Machine Specific Register (MSR).\r
5795\r
5796 Reads and returns the current value of the Machine Specific Register specified by Index. No\r
5797 parameter checking is performed on Index, and if the Index value is beyond the implemented MSR\r
5798 register range, a Reserved Register/Field fault may occur. The caller must either guarantee that\r
5799 Index is valid, or the caller must set up fault handlers to catch the faults. This function is\r
1a2f870c 5800 only available on Itanium processors.\r
59e0bb0c 5801\r
5802 @param Index The 8-bit Machine Specific Register index to read.\r
5803\r
5804 @return The current value of the Machine Specific Register specified by Index. \r
5805\r
5806**/\r
5807UINT64\r
5808EFIAPI\r
5809AsmReadMsr (\r
5810 IN UINT8 Index \r
5811 );\r
5812\r
5813\r
5814/**\r
5815 Writes the current value of a Machine Specific Register (MSR).\r
5816\r
5817 Writes Value to the Machine Specific Register specified by Index. Value is returned. No\r
5818 parameter checking is performed on Index, and if the Index value is beyond the implemented MSR\r
5819 register range, a Reserved Register/Field fault may occur. The caller must either guarantee that\r
5820 Index is valid, or the caller must set up fault handlers to catch the faults. This function is\r
1a2f870c 5821 only available on Itanium processors.\r
59e0bb0c 5822\r
5823 @param Index The 8-bit Machine Specific Register index to write.\r
5824 @param Value The 64-bit value to write to the Machine Specific Register.\r
5825\r
5826 @return The 64-bit value to write to the Machine Specific Register. \r
5827\r
5828**/\r
5829UINT64\r
5830EFIAPI\r
5831AsmWriteMsr (\r
5832 IN UINT8 Index, \r
5833 IN UINT64 Value \r
5834 );\r
5835\r
5836\r
ac644614 5837/**\r
5838 Determines if the CPU is currently executing in virtual, physical, or mixed mode.\r
5839\r
5840 Determines the current execution mode of the CPU.\r
5841 If the CPU is in virtual mode(PSR.RT=1, PSR.DT=1, PSR.IT=1), then 1 is returned.\r
5842 If the CPU is in physical mode(PSR.RT=0, PSR.DT=0, PSR.IT=0), then 0 is returned.\r
5843 If the CPU is not in physical mode or virtual mode, then it is in mixed mode,\r
5844 and -1 is returned.\r
1a2f870c 5845 This function is only available on Itanium processors.\r
ac644614 5846\r
17f695ed 5847 @retval 1 The CPU is in virtual mode.\r
5848 @retval 0 The CPU is in physical mode.\r
5849 @retval -1 The CPU is in mixed mode.\r
ac644614 5850\r
5851**/\r
5852INT64\r
5853EFIAPI\r
5854AsmCpuVirtual (\r
5855 VOID\r
5856 );\r
5857\r
5858\r
5859/**\r
5860 Makes a PAL procedure call.\r
5861\r
5862 This is a wrapper function to make a PAL procedure call. Based on the Index\r
5863 value this API will make static or stacked PAL call. The following table\r
5864 describes the usage of PAL Procedure Index Assignment. Architected procedures\r
5865 may be designated as required or optional. If a PAL procedure is specified\r
5866 as optional, a unique return code of 0xFFFFFFFFFFFFFFFF is returned in the\r
5867 Status field of the PAL_CALL_RETURN structure.\r
5868 This indicates that the procedure is not present in this PAL implementation.\r
5869 It is the caller's responsibility to check for this return code after calling\r
5870 any optional PAL procedure.\r
5871 No parameter checking is performed on the 5 input parameters, but there are\r
5872 some common rules that the caller should follow when making a PAL call. Any\r
5873 address passed to PAL as buffers for return parameters must be 8-byte aligned.\r
5874 Unaligned addresses may cause undefined results. For those parameters defined\r
5875 as reserved or some fields defined as reserved must be zero filled or the invalid\r
5876 argument return value may be returned or undefined result may occur during the\r
5877 execution of the procedure. If the PalEntryPoint does not point to a valid\r
5878 PAL entry point then the system behavior is undefined. This function is only\r
1a2f870c 5879 available on Itanium processors.\r
ac644614 5880\r
ee6c452c 5881 @param PalEntryPoint The PAL procedure calls entry point.\r
5882 @param Index The PAL procedure Index number.\r
5883 @param Arg2 The 2nd parameter for PAL procedure calls.\r
5884 @param Arg3 The 3rd parameter for PAL procedure calls.\r
5885 @param Arg4 The 4th parameter for PAL procedure calls.\r
ac644614 5886\r
5887 @return structure returned from the PAL Call procedure, including the status and return value.\r
5888\r
5889**/\r
5890PAL_CALL_RETURN\r
5891EFIAPI\r
5892AsmPalCall (\r
5893 IN UINT64 PalEntryPoint,\r
5894 IN UINT64 Index,\r
5895 IN UINT64 Arg2,\r
5896 IN UINT64 Arg3,\r
5897 IN UINT64 Arg4\r
5898 );\r
fd163050 5899#endif\r
ac644614 5900\r
fd163050 5901#if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)\r
1106ffe1 5902///\r
af2dc6a7 5903/// IA32 and x64 Specific Functions.\r
5904/// Byte packed structure for 16-bit Real Mode EFLAGS.\r
1106ffe1 5905///\r
ac644614 5906typedef union {\r
5907 struct {\r
af2dc6a7 5908 UINT32 CF:1; ///< Carry Flag.\r
5909 UINT32 Reserved_0:1; ///< Reserved.\r
5910 UINT32 PF:1; ///< Parity Flag.\r
5911 UINT32 Reserved_1:1; ///< Reserved.\r
5912 UINT32 AF:1; ///< Auxiliary Carry Flag.\r
5913 UINT32 Reserved_2:1; ///< Reserved.\r
5914 UINT32 ZF:1; ///< Zero Flag.\r
5915 UINT32 SF:1; ///< Sign Flag.\r
5916 UINT32 TF:1; ///< Trap Flag.\r
5917 UINT32 IF:1; ///< Interrupt Enable Flag.\r
5918 UINT32 DF:1; ///< Direction Flag.\r
5919 UINT32 OF:1; ///< Overflow Flag.\r
5920 UINT32 IOPL:2; ///< I/O Privilege Level.\r
5921 UINT32 NT:1; ///< Nested Task.\r
5922 UINT32 Reserved_3:1; ///< Reserved.\r
ac644614 5923 } Bits;\r
5924 UINT16 Uint16;\r
5925} IA32_FLAGS16;\r
5926\r
1106ffe1 5927///\r
af2dc6a7 5928/// Byte packed structure for EFLAGS/RFLAGS.\r
5929/// 32-bits on IA-32.\r
5930/// 64-bits on x64. The upper 32-bits on x64 are reserved.\r
1106ffe1 5931///\r
ac644614 5932typedef union {\r
5933 struct {\r
af2dc6a7 5934 UINT32 CF:1; ///< Carry Flag.\r
5935 UINT32 Reserved_0:1; ///< Reserved.\r
5936 UINT32 PF:1; ///< Parity Flag.\r
5937 UINT32 Reserved_1:1; ///< Reserved.\r
5938 UINT32 AF:1; ///< Auxiliary Carry Flag.\r
5939 UINT32 Reserved_2:1; ///< Reserved.\r
5940 UINT32 ZF:1; ///< Zero Flag.\r
5941 UINT32 SF:1; ///< Sign Flag.\r
5942 UINT32 TF:1; ///< Trap Flag.\r
5943 UINT32 IF:1; ///< Interrupt Enable Flag.\r
5944 UINT32 DF:1; ///< Direction Flag.\r
5945 UINT32 OF:1; ///< Overflow Flag.\r
5946 UINT32 IOPL:2; ///< I/O Privilege Level.\r
5947 UINT32 NT:1; ///< Nested Task.\r
5948 UINT32 Reserved_3:1; ///< Reserved.\r
5949 UINT32 RF:1; ///< Resume Flag.\r
5950 UINT32 VM:1; ///< Virtual 8086 Mode.\r
5951 UINT32 AC:1; ///< Alignment Check.\r
5952 UINT32 VIF:1; ///< Virtual Interrupt Flag.\r
5953 UINT32 VIP:1; ///< Virtual Interrupt Pending.\r
5954 UINT32 ID:1; ///< ID Flag.\r
5955 UINT32 Reserved_4:10; ///< Reserved.\r
ac644614 5956 } Bits;\r
5957 UINTN UintN;\r
5958} IA32_EFLAGS32;\r
5959\r
1106ffe1 5960///\r
af2dc6a7 5961/// Byte packed structure for Control Register 0 (CR0).\r
5962/// 32-bits on IA-32.\r
5963/// 64-bits on x64. The upper 32-bits on x64 are reserved.\r
1106ffe1 5964///\r
ac644614 5965typedef union {\r
5966 struct {\r
af2dc6a7 5967 UINT32 PE:1; ///< Protection Enable.\r
5968 UINT32 MP:1; ///< Monitor Coprocessor.\r
5969 UINT32 EM:1; ///< Emulation.\r
5970 UINT32 TS:1; ///< Task Switched.\r
5971 UINT32 ET:1; ///< Extension Type.\r
5972 UINT32 NE:1; ///< Numeric Error.\r
5973 UINT32 Reserved_0:10; ///< Reserved.\r
5974 UINT32 WP:1; ///< Write Protect.\r
5975 UINT32 Reserved_1:1; ///< Reserved.\r
5976 UINT32 AM:1; ///< Alignment Mask.\r
5977 UINT32 Reserved_2:10; ///< Reserved.\r
5978 UINT32 NW:1; ///< Mot Write-through.\r
5979 UINT32 CD:1; ///< Cache Disable.\r
5980 UINT32 PG:1; ///< Paging.\r
ac644614 5981 } Bits;\r
5982 UINTN UintN;\r
5983} IA32_CR0;\r
5984\r
1106ffe1 5985///\r
af2dc6a7 5986/// Byte packed structure for Control Register 4 (CR4).\r
5987/// 32-bits on IA-32.\r
5988/// 64-bits on x64. The upper 32-bits on x64 are reserved.\r
1106ffe1 5989///\r
ac644614 5990typedef union {\r
5991 struct {\r
af2dc6a7 5992 UINT32 VME:1; ///< Virtual-8086 Mode Extensions.\r
5993 UINT32 PVI:1; ///< Protected-Mode Virtual Interrupts.\r
5994 UINT32 TSD:1; ///< Time Stamp Disable.\r
5995 UINT32 DE:1; ///< Debugging Extensions.\r
5996 UINT32 PSE:1; ///< Page Size Extensions.\r
5997 UINT32 PAE:1; ///< Physical Address Extension.\r
5998 UINT32 MCE:1; ///< Machine Check Enable.\r
5999 UINT32 PGE:1; ///< Page Global Enable.\r
2a53dabf 6000 UINT32 PCE:1; ///< Performance Monitoring Counter\r
af2dc6a7 6001 ///< Enable.\r
2a53dabf
LG
6002 UINT32 OSFXSR:1; ///< Operating System Support for\r
6003 ///< FXSAVE and FXRSTOR instructions\r
6004 UINT32 OSXMMEXCPT:1; ///< Operating System Support for\r
6005 ///< Unmasked SIMD Floating Point\r
af2dc6a7 6006 ///< Exceptions.\r
6007 UINT32 Reserved_0:2; ///< Reserved.\r
2a53dabf 6008 UINT32 VMXE:1; ///< VMX Enable\r
af2dc6a7 6009 UINT32 Reserved_1:18; ///< Reserved.\r
ac644614 6010 } Bits;\r
6011 UINTN UintN;\r
6012} IA32_CR4;\r
6013\r
6088db38 6014///\r
6015/// Byte packed structure for a segment descriptor in a GDT/LDT.\r
6016///\r
6017typedef union {\r
6018 struct {\r
6019 UINT32 LimitLow:16;\r
6020 UINT32 BaseLow:16;\r
6021 UINT32 BaseMid:8;\r
6022 UINT32 Type:4;\r
6023 UINT32 S:1;\r
6024 UINT32 DPL:2;\r
6025 UINT32 P:1;\r
6026 UINT32 LimitHigh:4;\r
6027 UINT32 AVL:1;\r
6028 UINT32 L:1;\r
6029 UINT32 DB:1;\r
6030 UINT32 G:1;\r
6031 UINT32 BaseHigh:8;\r
6032 } Bits;\r
6033 UINT64 Uint64;\r
6034} IA32_SEGMENT_DESCRIPTOR;\r
6035\r
1106ffe1 6036///\r
af2dc6a7 6037/// Byte packed structure for an IDTR, GDTR, LDTR descriptor.\r
1106ffe1 6038///\r
ac644614 6039#pragma pack (1)\r
6040typedef struct {\r
6041 UINT16 Limit;\r
6042 UINTN Base;\r
6043} IA32_DESCRIPTOR;\r
6044#pragma pack ()\r
6045\r
6046#define IA32_IDT_GATE_TYPE_TASK 0x85\r
6047#define IA32_IDT_GATE_TYPE_INTERRUPT_16 0x86\r
6048#define IA32_IDT_GATE_TYPE_TRAP_16 0x87\r
6049#define IA32_IDT_GATE_TYPE_INTERRUPT_32 0x8E\r
6050#define IA32_IDT_GATE_TYPE_TRAP_32 0x8F\r
6051\r
6f4aad3b 6052\r
6053#if defined (MDE_CPU_IA32)\r
1106ffe1 6054///\r
af2dc6a7 6055/// Byte packed structure for an IA-32 Interrupt Gate Descriptor.\r
1106ffe1 6056///\r
dc317713 6057typedef union {\r
6058 struct {\r
af2dc6a7 6059 UINT32 OffsetLow:16; ///< Offset bits 15..0.\r
6060 UINT32 Selector:16; ///< Selector.\r
6061 UINT32 Reserved_0:8; ///< Reserved.\r
6062 UINT32 GateType:8; ///< Gate Type. See #defines above.\r
6063 UINT32 OffsetHigh:16; ///< Offset bits 31..16.\r
dc317713 6064 } Bits;\r
6065 UINT64 Uint64;\r
6066} IA32_IDT_GATE_DESCRIPTOR;\r
6067\r
6068#endif\r
6069\r
6070#if defined (MDE_CPU_X64)\r
6f4aad3b 6071///\r
af2dc6a7 6072/// Byte packed structure for an x64 Interrupt Gate Descriptor.\r
6f4aad3b 6073///\r
ac644614 6074typedef union {\r
6075 struct {\r
af2dc6a7 6076 UINT32 OffsetLow:16; ///< Offset bits 15..0.\r
6077 UINT32 Selector:16; ///< Selector.\r
6078 UINT32 Reserved_0:8; ///< Reserved.\r
6079 UINT32 GateType:8; ///< Gate Type. See #defines above.\r
6080 UINT32 OffsetHigh:16; ///< Offset bits 31..16.\r
6081 UINT32 OffsetUpper:32; ///< Offset bits 63..32.\r
6082 UINT32 Reserved_1:32; ///< Reserved.\r
ac644614 6083 } Bits;\r
6f4aad3b 6084 struct {\r
6085 UINT64 Uint64;\r
6086 UINT64 Uint64_1;\r
6087 } Uint128; \r
ac644614 6088} IA32_IDT_GATE_DESCRIPTOR;\r
6089\r
dc317713 6090#endif\r
6091\r
1106ffe1 6092///\r
af2dc6a7 6093/// Byte packed structure for an FP/SSE/SSE2 context.\r
1106ffe1 6094///\r
ac644614 6095typedef struct {\r
6096 UINT8 Buffer[512];\r
6097} IA32_FX_BUFFER;\r
6098\r
1106ffe1 6099///\r
af2dc6a7 6100/// Structures for the 16-bit real mode thunks.\r
1106ffe1 6101///\r
ac644614 6102typedef struct {\r
6103 UINT32 Reserved1;\r
6104 UINT32 Reserved2;\r
6105 UINT32 Reserved3;\r
6106 UINT32 Reserved4;\r
6107 UINT8 BL;\r
6108 UINT8 BH;\r
6109 UINT16 Reserved5;\r
6110 UINT8 DL;\r
6111 UINT8 DH;\r
6112 UINT16 Reserved6;\r
6113 UINT8 CL;\r
6114 UINT8 CH;\r
6115 UINT16 Reserved7;\r
6116 UINT8 AL;\r
6117 UINT8 AH;\r
6118 UINT16 Reserved8;\r
6119} IA32_BYTE_REGS;\r
6120\r
6121typedef struct {\r
6122 UINT16 DI;\r
6123 UINT16 Reserved1;\r
6124 UINT16 SI;\r
6125 UINT16 Reserved2;\r
6126 UINT16 BP;\r
6127 UINT16 Reserved3;\r
6128 UINT16 SP;\r
6129 UINT16 Reserved4;\r
6130 UINT16 BX;\r
6131 UINT16 Reserved5;\r
6132 UINT16 DX;\r
6133 UINT16 Reserved6;\r
6134 UINT16 CX;\r
6135 UINT16 Reserved7;\r
6136 UINT16 AX;\r
6137 UINT16 Reserved8;\r
6138} IA32_WORD_REGS;\r
6139\r
6140typedef struct {\r
6141 UINT32 EDI;\r
6142 UINT32 ESI;\r
6143 UINT32 EBP;\r
6144 UINT32 ESP;\r
6145 UINT32 EBX;\r
6146 UINT32 EDX;\r
6147 UINT32 ECX;\r
6148 UINT32 EAX;\r
6149 UINT16 DS;\r
6150 UINT16 ES;\r
6151 UINT16 FS;\r
6152 UINT16 GS;\r
6153 IA32_EFLAGS32 EFLAGS;\r
6154 UINT32 Eip;\r
6155 UINT16 CS;\r
6156 UINT16 SS;\r
6157} IA32_DWORD_REGS;\r
6158\r
6159typedef union {\r
6160 IA32_DWORD_REGS E;\r
6161 IA32_WORD_REGS X;\r
6162 IA32_BYTE_REGS H;\r
6163} IA32_REGISTER_SET;\r
6164\r
1106ffe1 6165///\r
af2dc6a7 6166/// Byte packed structure for an 16-bit real mode thunks.\r
1106ffe1 6167///\r
ac644614 6168typedef struct {\r
6169 IA32_REGISTER_SET *RealModeState;\r
6170 VOID *RealModeBuffer;\r
6171 UINT32 RealModeBufferSize;\r
6172 UINT32 ThunkAttributes;\r
6173} THUNK_CONTEXT;\r
6174\r
6175#define THUNK_ATTRIBUTE_BIG_REAL_MODE 0x00000001\r
6176#define THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 0x00000002\r
6177#define THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL 0x00000004\r
6178\r
6179/**\r
6180 Retrieves CPUID information.\r
6181\r
6182 Executes the CPUID instruction with EAX set to the value specified by Index.\r
6183 This function always returns Index.\r
6184 If Eax is not NULL, then the value of EAX after CPUID is returned in Eax.\r
6185 If Ebx is not NULL, then the value of EBX after CPUID is returned in Ebx.\r
6186 If Ecx is not NULL, then the value of ECX after CPUID is returned in Ecx.\r
6187 If Edx is not NULL, then the value of EDX after CPUID is returned in Edx.\r
030cd1a2 6188 This function is only available on IA-32 and x64.\r
ac644614 6189\r
6190 @param Index The 32-bit value to load into EAX prior to invoking the CPUID\r
6191 instruction.\r
af2dc6a7 6192 @param Eax The pointer to the 32-bit EAX value returned by the CPUID\r
ac644614 6193 instruction. This is an optional parameter that may be NULL.\r
af2dc6a7 6194 @param Ebx The pointer to the 32-bit EBX value returned by the CPUID\r
ac644614 6195 instruction. This is an optional parameter that may be NULL.\r
af2dc6a7 6196 @param Ecx The pointer to the 32-bit ECX value returned by the CPUID\r
ac644614 6197 instruction. This is an optional parameter that may be NULL.\r
af2dc6a7 6198 @param Edx The pointer to the 32-bit EDX value returned by the CPUID\r
ac644614 6199 instruction. This is an optional parameter that may be NULL.\r
6200\r
2fe241a2 6201 @return Index.\r
ac644614 6202\r
6203**/\r
6204UINT32\r
6205EFIAPI\r
6206AsmCpuid (\r
6207 IN UINT32 Index,\r
6208 OUT UINT32 *Eax, OPTIONAL\r
6209 OUT UINT32 *Ebx, OPTIONAL\r
6210 OUT UINT32 *Ecx, OPTIONAL\r
6211 OUT UINT32 *Edx OPTIONAL\r
6212 );\r
6213\r
6214\r
6215/**\r
6216 Retrieves CPUID information using an extended leaf identifier.\r
6217\r
6218 Executes the CPUID instruction with EAX set to the value specified by Index\r
6219 and ECX set to the value specified by SubIndex. This function always returns\r
6220 Index. This function is only available on IA-32 and x64.\r
6221\r
6222 If Eax is not NULL, then the value of EAX after CPUID is returned in Eax.\r
6223 If Ebx is not NULL, then the value of EBX after CPUID is returned in Ebx.\r
6224 If Ecx is not NULL, then the value of ECX after CPUID is returned in Ecx.\r
6225 If Edx is not NULL, then the value of EDX after CPUID is returned in Edx.\r
6226\r
6227 @param Index The 32-bit value to load into EAX prior to invoking the\r
6228 CPUID instruction.\r
6229 @param SubIndex The 32-bit value to load into ECX prior to invoking the\r
6230 CPUID instruction.\r
af2dc6a7 6231 @param Eax The pointer to the 32-bit EAX value returned by the CPUID\r
ac644614 6232 instruction. This is an optional parameter that may be\r
6233 NULL.\r
af2dc6a7 6234 @param Ebx The pointer to the 32-bit EBX value returned by the CPUID\r
ac644614 6235 instruction. This is an optional parameter that may be\r
6236 NULL.\r
af2dc6a7 6237 @param Ecx The pointer to the 32-bit ECX value returned by the CPUID\r
ac644614 6238 instruction. This is an optional parameter that may be\r
6239 NULL.\r
af2dc6a7 6240 @param Edx The pointer to the 32-bit EDX value returned by the CPUID\r
ac644614 6241 instruction. This is an optional parameter that may be\r
6242 NULL.\r
6243\r
2fe241a2 6244 @return Index.\r
ac644614 6245\r
6246**/\r
6247UINT32\r
6248EFIAPI\r
6249AsmCpuidEx (\r
6250 IN UINT32 Index,\r
6251 IN UINT32 SubIndex,\r
6252 OUT UINT32 *Eax, OPTIONAL\r
6253 OUT UINT32 *Ebx, OPTIONAL\r
6254 OUT UINT32 *Ecx, OPTIONAL\r
6255 OUT UINT32 *Edx OPTIONAL\r
6256 );\r
6257\r
6258\r
be5f1614 6259/**\r
6260 Set CD bit and clear NW bit of CR0 followed by a WBINVD.\r
6261\r
6262 Disables the caches by setting the CD bit of CR0 to 1, clearing the NW bit of CR0 to 0,\r
6263 and executing a WBINVD instruction. This function is only available on IA-32 and x64.\r
6264\r
6265**/\r
6266VOID\r
6267EFIAPI\r
6268AsmDisableCache (\r
6269 VOID\r
6270 );\r
6271\r
6272\r
6273/**\r
6274 Perform a WBINVD and clear both the CD and NW bits of CR0.\r
6275\r
6276 Enables the caches by executing a WBINVD instruction and then clear both the CD and NW\r
6277 bits of CR0 to 0. This function is only available on IA-32 and x64.\r
6278\r
6279**/\r
6280VOID\r
6281EFIAPI\r
6282AsmEnableCache (\r
6283 VOID\r
6284 );\r
6285\r
6286\r
ac644614 6287/**\r
6288 Returns the lower 32-bits of a Machine Specific Register(MSR).\r
6289\r
6290 Reads and returns the lower 32-bits of the MSR specified by Index.\r
6291 No parameter checking is performed on Index, and some Index values may cause\r
6292 CPU exceptions. The caller must either guarantee that Index is valid, or the\r
6293 caller must set up exception handlers to catch the exceptions. This function\r
030cd1a2 6294 is only available on IA-32 and x64.\r
ac644614 6295\r
6296 @param Index The 32-bit MSR index to read.\r
6297\r
6298 @return The lower 32 bits of the MSR identified by Index.\r
6299\r
6300**/\r
6301UINT32\r
6302EFIAPI\r
6303AsmReadMsr32 (\r
6304 IN UINT32 Index\r
6305 );\r
6306\r
6307\r
6308/**\r
17f695ed 6309 Writes a 32-bit value to a Machine Specific Register(MSR), and returns the value.\r
6310 The upper 32-bits of the MSR are set to zero.\r
ac644614 6311\r
6312 Writes the 32-bit value specified by Value to the MSR specified by Index. The\r
6313 upper 32-bits of the MSR write are set to zero. The 32-bit value written to\r
6314 the MSR is returned. No parameter checking is performed on Index or Value,\r
6315 and some of these may cause CPU exceptions. The caller must either guarantee\r
6316 that Index and Value are valid, or the caller must establish proper exception\r
030cd1a2 6317 handlers. This function is only available on IA-32 and x64.\r
ac644614 6318\r
6319 @param Index The 32-bit MSR index to write.\r
6320 @param Value The 32-bit value to write to the MSR.\r
6321\r
6322 @return Value\r
6323\r
6324**/\r
6325UINT32\r
6326EFIAPI\r
6327AsmWriteMsr32 (\r
6328 IN UINT32 Index,\r
6329 IN UINT32 Value\r
6330 );\r
6331\r
6332\r
6333/**\r
62991af2 6334 Reads a 64-bit MSR, performs a bitwise OR on the lower 32-bits, and\r
ac644614 6335 writes the result back to the 64-bit MSR.\r
6336\r
62991af2 6337 Reads the 64-bit MSR specified by Index, performs a bitwise OR\r
ac644614 6338 between the lower 32-bits of the read result and the value specified by\r
6339 OrData, and writes the result to the 64-bit MSR specified by Index. The lower\r
6340 32-bits of the value written to the MSR is returned. No parameter checking is\r
6341 performed on Index or OrData, and some of these may cause CPU exceptions. The\r
6342 caller must either guarantee that Index and OrData are valid, or the caller\r
6343 must establish proper exception handlers. This function is only available on\r
030cd1a2 6344 IA-32 and x64.\r
ac644614 6345\r
6346 @param Index The 32-bit MSR index to write.\r
6347 @param OrData The value to OR with the read value from the MSR.\r
6348\r
6349 @return The lower 32-bit value written to the MSR.\r
6350\r
6351**/\r
6352UINT32\r
6353EFIAPI\r
6354AsmMsrOr32 (\r
6355 IN UINT32 Index,\r
6356 IN UINT32 OrData\r
6357 );\r
6358\r
6359\r
6360/**\r
6361 Reads a 64-bit MSR, performs a bitwise AND on the lower 32-bits, and writes\r
6362 the result back to the 64-bit MSR.\r
6363\r
6364 Reads the 64-bit MSR specified by Index, performs a bitwise AND between the\r
6365 lower 32-bits of the read result and the value specified by AndData, and\r
6366 writes the result to the 64-bit MSR specified by Index. The lower 32-bits of\r
6367 the value written to the MSR is returned. No parameter checking is performed\r
6368 on Index or AndData, and some of these may cause CPU exceptions. The caller\r
6369 must either guarantee that Index and AndData are valid, or the caller must\r
6370 establish proper exception handlers. This function is only available on IA-32\r
030cd1a2 6371 and x64.\r
ac644614 6372\r
6373 @param Index The 32-bit MSR index to write.\r
6374 @param AndData The value to AND with the read value from the MSR.\r
6375\r
6376 @return The lower 32-bit value written to the MSR.\r
6377\r
6378**/\r
6379UINT32\r
6380EFIAPI\r
6381AsmMsrAnd32 (\r
6382 IN UINT32 Index,\r
6383 IN UINT32 AndData\r
6384 );\r
6385\r
6386\r
6387/**\r
62991af2 6388 Reads a 64-bit MSR, performs a bitwise AND followed by a bitwise OR\r
ac644614 6389 on the lower 32-bits, and writes the result back to the 64-bit MSR.\r
6390\r
6391 Reads the 64-bit MSR specified by Index, performs a bitwise AND between the\r
6392 lower 32-bits of the read result and the value specified by AndData\r
62991af2 6393 preserving the upper 32-bits, performs a bitwise OR between the\r
ac644614 6394 result of the AND operation and the value specified by OrData, and writes the\r
6395 result to the 64-bit MSR specified by Address. The lower 32-bits of the value\r
6396 written to the MSR is returned. No parameter checking is performed on Index,\r
6397 AndData, or OrData, and some of these may cause CPU exceptions. The caller\r
6398 must either guarantee that Index, AndData, and OrData are valid, or the\r
6399 caller must establish proper exception handlers. This function is only\r
030cd1a2 6400 available on IA-32 and x64.\r
ac644614 6401\r
6402 @param Index The 32-bit MSR index to write.\r
6403 @param AndData The value to AND with the read value from the MSR.\r
6404 @param OrData The value to OR with the result of the AND operation.\r
6405\r
6406 @return The lower 32-bit value written to the MSR.\r
6407\r
6408**/\r
6409UINT32\r
6410EFIAPI\r
6411AsmMsrAndThenOr32 (\r
6412 IN UINT32 Index,\r
6413 IN UINT32 AndData,\r
6414 IN UINT32 OrData\r
6415 );\r
6416\r
6417\r
6418/**\r
6419 Reads a bit field of an MSR.\r
6420\r
6421 Reads the bit field in the lower 32-bits of a 64-bit MSR. The bit field is\r
6422 specified by the StartBit and the EndBit. The value of the bit field is\r
6423 returned. The caller must either guarantee that Index is valid, or the caller\r
6424 must set up exception handlers to catch the exceptions. This function is only\r
030cd1a2 6425 available on IA-32 and x64.\r
ac644614 6426\r
6427 If StartBit is greater than 31, then ASSERT().\r
6428 If EndBit is greater than 31, then ASSERT().\r
6429 If EndBit is less than StartBit, then ASSERT().\r
6430\r
6431 @param Index The 32-bit MSR index to read.\r
6432 @param StartBit The ordinal of the least significant bit in the bit field.\r
6433 Range 0..31.\r
6434 @param EndBit The ordinal of the most significant bit in the bit field.\r
6435 Range 0..31.\r
6436\r
6437 @return The bit field read from the MSR.\r
6438\r
6439**/\r
6440UINT32\r
6441EFIAPI\r
6442AsmMsrBitFieldRead32 (\r
6443 IN UINT32 Index,\r
6444 IN UINTN StartBit,\r
6445 IN UINTN EndBit\r
6446 );\r
6447\r
6448\r
6449/**\r
6450 Writes a bit field to an MSR.\r
6451\r
2fe241a2 6452 Writes Value to a bit field in the lower 32-bits of a 64-bit MSR. The bit\r
ac644614 6453 field is specified by the StartBit and the EndBit. All other bits in the\r
6454 destination MSR are preserved. The lower 32-bits of the MSR written is\r
62991af2 6455 returned. The caller must either guarantee that Index and the data written \r
6456 is valid, or the caller must set up exception handlers to catch the exceptions. \r
6457 This function is only available on IA-32 and x64.\r
ac644614 6458\r
6459 If StartBit is greater than 31, then ASSERT().\r
6460 If EndBit is greater than 31, then ASSERT().\r
6461 If EndBit is less than StartBit, then ASSERT().\r
94952554 6462 If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 6463\r
6464 @param Index The 32-bit MSR index to write.\r
6465 @param StartBit The ordinal of the least significant bit in the bit field.\r
6466 Range 0..31.\r
6467 @param EndBit The ordinal of the most significant bit in the bit field.\r
6468 Range 0..31.\r
6469 @param Value New value of the bit field.\r
6470\r
6471 @return The lower 32-bit of the value written to the MSR.\r
6472\r
6473**/\r
6474UINT32\r
6475EFIAPI\r
6476AsmMsrBitFieldWrite32 (\r
6477 IN UINT32 Index,\r
6478 IN UINTN StartBit,\r
6479 IN UINTN EndBit,\r
6480 IN UINT32 Value\r
6481 );\r
6482\r
6483\r
6484/**\r
6485 Reads a bit field in a 64-bit MSR, performs a bitwise OR, and writes the\r
6486 result back to the bit field in the 64-bit MSR.\r
6487\r
62991af2 6488 Reads the 64-bit MSR specified by Index, performs a bitwise OR\r
ac644614 6489 between the read result and the value specified by OrData, and writes the\r
6490 result to the 64-bit MSR specified by Index. The lower 32-bits of the value\r
6491 written to the MSR are returned. Extra left bits in OrData are stripped. The\r
6492 caller must either guarantee that Index and the data written is valid, or\r
6493 the caller must set up exception handlers to catch the exceptions. This\r
030cd1a2 6494 function is only available on IA-32 and x64.\r
ac644614 6495\r
6496 If StartBit is greater than 31, then ASSERT().\r
6497 If EndBit is greater than 31, then ASSERT().\r
6498 If EndBit is less than StartBit, then ASSERT().\r
94952554 6499 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 6500\r
6501 @param Index The 32-bit MSR index to write.\r
6502 @param StartBit The ordinal of the least significant bit in the bit field.\r
6503 Range 0..31.\r
6504 @param EndBit The ordinal of the most significant bit in the bit field.\r
6505 Range 0..31.\r
6506 @param OrData The value to OR with the read value from the MSR.\r
6507\r
6508 @return The lower 32-bit of the value written to the MSR.\r
6509\r
6510**/\r
6511UINT32\r
6512EFIAPI\r
6513AsmMsrBitFieldOr32 (\r
6514 IN UINT32 Index,\r
6515 IN UINTN StartBit,\r
6516 IN UINTN EndBit,\r
6517 IN UINT32 OrData\r
6518 );\r
6519\r
6520\r
6521/**\r
6522 Reads a bit field in a 64-bit MSR, performs a bitwise AND, and writes the\r
6523 result back to the bit field in the 64-bit MSR.\r
6524\r
6525 Reads the 64-bit MSR specified by Index, performs a bitwise AND between the\r
6526 read result and the value specified by AndData, and writes the result to the\r
6527 64-bit MSR specified by Index. The lower 32-bits of the value written to the\r
6528 MSR are returned. Extra left bits in AndData are stripped. The caller must\r
6529 either guarantee that Index and the data written is valid, or the caller must\r
6530 set up exception handlers to catch the exceptions. This function is only\r
030cd1a2 6531 available on IA-32 and x64.\r
ac644614 6532\r
6533 If StartBit is greater than 31, then ASSERT().\r
6534 If EndBit is greater than 31, then ASSERT().\r
6535 If EndBit is less than StartBit, then ASSERT().\r
94952554 6536 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 6537\r
6538 @param Index The 32-bit MSR index to write.\r
6539 @param StartBit The ordinal of the least significant bit in the bit field.\r
6540 Range 0..31.\r
6541 @param EndBit The ordinal of the most significant bit in the bit field.\r
6542 Range 0..31.\r
6543 @param AndData The value to AND with the read value from the MSR.\r
6544\r
6545 @return The lower 32-bit of the value written to the MSR.\r
6546\r
6547**/\r
6548UINT32\r
6549EFIAPI\r
6550AsmMsrBitFieldAnd32 (\r
6551 IN UINT32 Index,\r
6552 IN UINTN StartBit,\r
6553 IN UINTN EndBit,\r
6554 IN UINT32 AndData\r
6555 );\r
6556\r
6557\r
6558/**\r
6559 Reads a bit field in a 64-bit MSR, performs a bitwise AND followed by a\r
62991af2 6560 bitwise OR, and writes the result back to the bit field in the\r
ac644614 6561 64-bit MSR.\r
6562\r
6563 Reads the 64-bit MSR specified by Index, performs a bitwise AND followed by a\r
62991af2 6564 bitwise OR between the read result and the value specified by\r
ac644614 6565 AndData, and writes the result to the 64-bit MSR specified by Index. The\r
6566 lower 32-bits of the value written to the MSR are returned. Extra left bits\r
6567 in both AndData and OrData are stripped. The caller must either guarantee\r
6568 that Index and the data written is valid, or the caller must set up exception\r
6569 handlers to catch the exceptions. This function is only available on IA-32\r
030cd1a2 6570 and x64.\r
ac644614 6571\r
6572 If StartBit is greater than 31, then ASSERT().\r
6573 If EndBit is greater than 31, then ASSERT().\r
6574 If EndBit is less than StartBit, then ASSERT().\r
94952554
LG
6575 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
6576 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 6577\r
6578 @param Index The 32-bit MSR index to write.\r
6579 @param StartBit The ordinal of the least significant bit in the bit field.\r
6580 Range 0..31.\r
6581 @param EndBit The ordinal of the most significant bit in the bit field.\r
6582 Range 0..31.\r
6583 @param AndData The value to AND with the read value from the MSR.\r
6584 @param OrData The value to OR with the result of the AND operation.\r
6585\r
6586 @return The lower 32-bit of the value written to the MSR.\r
6587\r
6588**/\r
6589UINT32\r
6590EFIAPI\r
6591AsmMsrBitFieldAndThenOr32 (\r
6592 IN UINT32 Index,\r
6593 IN UINTN StartBit,\r
6594 IN UINTN EndBit,\r
6595 IN UINT32 AndData,\r
6596 IN UINT32 OrData\r
6597 );\r
6598\r
6599\r
6600/**\r
6601 Returns a 64-bit Machine Specific Register(MSR).\r
6602\r
6603 Reads and returns the 64-bit MSR specified by Index. No parameter checking is\r
6604 performed on Index, and some Index values may cause CPU exceptions. The\r
6605 caller must either guarantee that Index is valid, or the caller must set up\r
6606 exception handlers to catch the exceptions. This function is only available\r
030cd1a2 6607 on IA-32 and x64.\r
ac644614 6608\r
6609 @param Index The 32-bit MSR index to read.\r
6610\r
6611 @return The value of the MSR identified by Index.\r
6612\r
6613**/\r
6614UINT64\r
6615EFIAPI\r
6616AsmReadMsr64 (\r
6617 IN UINT32 Index\r
6618 );\r
6619\r
6620\r
6621/**\r
6622 Writes a 64-bit value to a Machine Specific Register(MSR), and returns the\r
6623 value.\r
6624\r
6625 Writes the 64-bit value specified by Value to the MSR specified by Index. The\r
6626 64-bit value written to the MSR is returned. No parameter checking is\r
6627 performed on Index or Value, and some of these may cause CPU exceptions. The\r
6628 caller must either guarantee that Index and Value are valid, or the caller\r
6629 must establish proper exception handlers. This function is only available on\r
030cd1a2 6630 IA-32 and x64.\r
ac644614 6631\r
6632 @param Index The 32-bit MSR index to write.\r
6633 @param Value The 64-bit value to write to the MSR.\r
6634\r
6635 @return Value\r
6636\r
6637**/\r
6638UINT64\r
6639EFIAPI\r
6640AsmWriteMsr64 (\r
6641 IN UINT32 Index,\r
6642 IN UINT64 Value\r
6643 );\r
6644\r
6645\r
6646/**\r
62991af2 6647 Reads a 64-bit MSR, performs a bitwise OR, and writes the result\r
ac644614 6648 back to the 64-bit MSR.\r
6649\r
62991af2 6650 Reads the 64-bit MSR specified by Index, performs a bitwise OR\r
ac644614 6651 between the read result and the value specified by OrData, and writes the\r
6652 result to the 64-bit MSR specified by Index. The value written to the MSR is\r
6653 returned. No parameter checking is performed on Index or OrData, and some of\r
6654 these may cause CPU exceptions. The caller must either guarantee that Index\r
6655 and OrData are valid, or the caller must establish proper exception handlers.\r
030cd1a2 6656 This function is only available on IA-32 and x64.\r
ac644614 6657\r
6658 @param Index The 32-bit MSR index to write.\r
6659 @param OrData The value to OR with the read value from the MSR.\r
6660\r
6661 @return The value written back to the MSR.\r
6662\r
6663**/\r
6664UINT64\r
6665EFIAPI\r
6666AsmMsrOr64 (\r
6667 IN UINT32 Index,\r
6668 IN UINT64 OrData\r
6669 );\r
6670\r
6671\r
6672/**\r
6673 Reads a 64-bit MSR, performs a bitwise AND, and writes the result back to the\r
6674 64-bit MSR.\r
6675\r
6676 Reads the 64-bit MSR specified by Index, performs a bitwise AND between the\r
6677 read result and the value specified by OrData, and writes the result to the\r
6678 64-bit MSR specified by Index. The value written to the MSR is returned. No\r
6679 parameter checking is performed on Index or OrData, and some of these may\r
6680 cause CPU exceptions. The caller must either guarantee that Index and OrData\r
6681 are valid, or the caller must establish proper exception handlers. This\r
030cd1a2 6682 function is only available on IA-32 and x64.\r
ac644614 6683\r
6684 @param Index The 32-bit MSR index to write.\r
6685 @param AndData The value to AND with the read value from the MSR.\r
6686\r
6687 @return The value written back to the MSR.\r
6688\r
6689**/\r
6690UINT64\r
6691EFIAPI\r
6692AsmMsrAnd64 (\r
6693 IN UINT32 Index,\r
6694 IN UINT64 AndData\r
6695 );\r
6696\r
6697\r
6698/**\r
62991af2 6699 Reads a 64-bit MSR, performs a bitwise AND followed by a bitwise \r
ac644614 6700 OR, and writes the result back to the 64-bit MSR.\r
6701\r
6702 Reads the 64-bit MSR specified by Index, performs a bitwise AND between read\r
62991af2 6703 result and the value specified by AndData, performs a bitwise OR\r
ac644614 6704 between the result of the AND operation and the value specified by OrData,\r
6705 and writes the result to the 64-bit MSR specified by Index. The value written\r
6706 to the MSR is returned. No parameter checking is performed on Index, AndData,\r
6707 or OrData, and some of these may cause CPU exceptions. The caller must either\r
6708 guarantee that Index, AndData, and OrData are valid, or the caller must\r
6709 establish proper exception handlers. This function is only available on IA-32\r
030cd1a2 6710 and x64.\r
ac644614 6711\r
6712 @param Index The 32-bit MSR index to write.\r
6713 @param AndData The value to AND with the read value from the MSR.\r
6714 @param OrData The value to OR with the result of the AND operation.\r
6715\r
6716 @return The value written back to the MSR.\r
6717\r
6718**/\r
6719UINT64\r
6720EFIAPI\r
6721AsmMsrAndThenOr64 (\r
6722 IN UINT32 Index,\r
6723 IN UINT64 AndData,\r
6724 IN UINT64 OrData\r
6725 );\r
6726\r
6727\r
6728/**\r
6729 Reads a bit field of an MSR.\r
6730\r
6731 Reads the bit field in the 64-bit MSR. The bit field is specified by the\r
6732 StartBit and the EndBit. The value of the bit field is returned. The caller\r
6733 must either guarantee that Index is valid, or the caller must set up\r
6734 exception handlers to catch the exceptions. This function is only available\r
030cd1a2 6735 on IA-32 and x64.\r
ac644614 6736\r
6737 If StartBit is greater than 63, then ASSERT().\r
6738 If EndBit is greater than 63, then ASSERT().\r
6739 If EndBit is less than StartBit, then ASSERT().\r
6740\r
6741 @param Index The 32-bit MSR index to read.\r
6742 @param StartBit The ordinal of the least significant bit in the bit field.\r
6743 Range 0..63.\r
6744 @param EndBit The ordinal of the most significant bit in the bit field.\r
6745 Range 0..63.\r
6746\r
6747 @return The value read from the MSR.\r
6748\r
6749**/\r
6750UINT64\r
6751EFIAPI\r
6752AsmMsrBitFieldRead64 (\r
6753 IN UINT32 Index,\r
6754 IN UINTN StartBit,\r
6755 IN UINTN EndBit\r
6756 );\r
6757\r
6758\r
6759/**\r
6760 Writes a bit field to an MSR.\r
6761\r
6762 Writes Value to a bit field in a 64-bit MSR. The bit field is specified by\r
6763 the StartBit and the EndBit. All other bits in the destination MSR are\r
62991af2 6764 preserved. The MSR written is returned. The caller must either guarantee \r
6765 that Index and the data written is valid, or the caller must set up exception \r
6766 handlers to catch the exceptions. This function is only available on IA-32 and x64.\r
ac644614 6767\r
6768 If StartBit is greater than 63, then ASSERT().\r
6769 If EndBit is greater than 63, then ASSERT().\r
6770 If EndBit is less than StartBit, then ASSERT().\r
94952554 6771 If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 6772\r
6773 @param Index The 32-bit MSR index to write.\r
6774 @param StartBit The ordinal of the least significant bit in the bit field.\r
6775 Range 0..63.\r
6776 @param EndBit The ordinal of the most significant bit in the bit field.\r
6777 Range 0..63.\r
6778 @param Value New value of the bit field.\r
6779\r
6780 @return The value written back to the MSR.\r
6781\r
6782**/\r
6783UINT64\r
6784EFIAPI\r
6785AsmMsrBitFieldWrite64 (\r
6786 IN UINT32 Index,\r
6787 IN UINTN StartBit,\r
6788 IN UINTN EndBit,\r
6789 IN UINT64 Value\r
6790 );\r
6791\r
6792\r
6793/**\r
62991af2 6794 Reads a bit field in a 64-bit MSR, performs a bitwise OR, and\r
ac644614 6795 writes the result back to the bit field in the 64-bit MSR.\r
6796\r
62991af2 6797 Reads the 64-bit MSR specified by Index, performs a bitwise OR\r
ac644614 6798 between the read result and the value specified by OrData, and writes the\r
6799 result to the 64-bit MSR specified by Index. The value written to the MSR is\r
6800 returned. Extra left bits in OrData are stripped. The caller must either\r
6801 guarantee that Index and the data written is valid, or the caller must set up\r
6802 exception handlers to catch the exceptions. This function is only available\r
030cd1a2 6803 on IA-32 and x64.\r
ac644614 6804\r
6805 If StartBit is greater than 63, then ASSERT().\r
6806 If EndBit is greater than 63, then ASSERT().\r
6807 If EndBit is less than StartBit, then ASSERT().\r
94952554 6808 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 6809\r
6810 @param Index The 32-bit MSR index to write.\r
6811 @param StartBit The ordinal of the least significant bit in the bit field.\r
6812 Range 0..63.\r
6813 @param EndBit The ordinal of the most significant bit in the bit field.\r
6814 Range 0..63.\r
6815 @param OrData The value to OR with the read value from the bit field.\r
6816\r
6817 @return The value written back to the MSR.\r
6818\r
6819**/\r
6820UINT64\r
6821EFIAPI\r
6822AsmMsrBitFieldOr64 (\r
6823 IN UINT32 Index,\r
6824 IN UINTN StartBit,\r
6825 IN UINTN EndBit,\r
6826 IN UINT64 OrData\r
6827 );\r
6828\r
6829\r
6830/**\r
6831 Reads a bit field in a 64-bit MSR, performs a bitwise AND, and writes the\r
6832 result back to the bit field in the 64-bit MSR.\r
6833\r
6834 Reads the 64-bit MSR specified by Index, performs a bitwise AND between the\r
6835 read result and the value specified by AndData, and writes the result to the\r
6836 64-bit MSR specified by Index. The value written to the MSR is returned.\r
6837 Extra left bits in AndData are stripped. The caller must either guarantee\r
6838 that Index and the data written is valid, or the caller must set up exception\r
6839 handlers to catch the exceptions. This function is only available on IA-32\r
030cd1a2 6840 and x64.\r
ac644614 6841\r
6842 If StartBit is greater than 63, then ASSERT().\r
6843 If EndBit is greater than 63, then ASSERT().\r
6844 If EndBit is less than StartBit, then ASSERT().\r
94952554 6845 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 6846\r
6847 @param Index The 32-bit MSR index to write.\r
6848 @param StartBit The ordinal of the least significant bit in the bit field.\r
6849 Range 0..63.\r
6850 @param EndBit The ordinal of the most significant bit in the bit field.\r
6851 Range 0..63.\r
6852 @param AndData The value to AND with the read value from the bit field.\r
6853\r
6854 @return The value written back to the MSR.\r
6855\r
6856**/\r
6857UINT64\r
6858EFIAPI\r
6859AsmMsrBitFieldAnd64 (\r
6860 IN UINT32 Index,\r
6861 IN UINTN StartBit,\r
6862 IN UINTN EndBit,\r
6863 IN UINT64 AndData\r
6864 );\r
6865\r
6866\r
6867/**\r
6868 Reads a bit field in a 64-bit MSR, performs a bitwise AND followed by a\r
62991af2 6869 bitwise OR, and writes the result back to the bit field in the\r
ac644614 6870 64-bit MSR.\r
6871\r
6872 Reads the 64-bit MSR specified by Index, performs a bitwise AND followed by\r
62991af2 6873 a bitwise OR between the read result and the value specified by\r
ac644614 6874 AndData, and writes the result to the 64-bit MSR specified by Index. The\r
6875 value written to the MSR is returned. Extra left bits in both AndData and\r
6876 OrData are stripped. The caller must either guarantee that Index and the data\r
6877 written is valid, or the caller must set up exception handlers to catch the\r
030cd1a2 6878 exceptions. This function is only available on IA-32 and x64.\r
ac644614 6879\r
6880 If StartBit is greater than 63, then ASSERT().\r
6881 If EndBit is greater than 63, then ASSERT().\r
6882 If EndBit is less than StartBit, then ASSERT().\r
94952554
LG
6883 If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
6884 If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
ac644614 6885\r
6886 @param Index The 32-bit MSR index to write.\r
6887 @param StartBit The ordinal of the least significant bit in the bit field.\r
6888 Range 0..63.\r
6889 @param EndBit The ordinal of the most significant bit in the bit field.\r
6890 Range 0..63.\r
6891 @param AndData The value to AND with the read value from the bit field.\r
6892 @param OrData The value to OR with the result of the AND operation.\r
6893\r
6894 @return The value written back to the MSR.\r
6895\r
6896**/\r
6897UINT64\r
6898EFIAPI\r
6899AsmMsrBitFieldAndThenOr64 (\r
6900 IN UINT32 Index,\r
6901 IN UINTN StartBit,\r
6902 IN UINTN EndBit,\r
6903 IN UINT64 AndData,\r
6904 IN UINT64 OrData\r
6905 );\r
6906\r
6907\r
6908/**\r
6909 Reads the current value of the EFLAGS register.\r
6910\r
6911 Reads and returns the current value of the EFLAGS register. This function is\r
030cd1a2 6912 only available on IA-32 and x64. This returns a 32-bit value on IA-32 and a\r
6913 64-bit value on x64.\r
ac644614 6914\r
030cd1a2 6915 @return EFLAGS on IA-32 or RFLAGS on x64.\r
ac644614 6916\r
6917**/\r
6918UINTN\r
6919EFIAPI\r
6920AsmReadEflags (\r
6921 VOID\r
6922 );\r
6923\r
6924\r
6925/**\r
6926 Reads the current value of the Control Register 0 (CR0).\r
6927\r
6928 Reads and returns the current value of CR0. This function is only available\r
030cd1a2 6929 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
6930 x64.\r
ac644614 6931\r
6932 @return The value of the Control Register 0 (CR0).\r
6933\r
6934**/\r
6935UINTN\r
6936EFIAPI\r
6937AsmReadCr0 (\r
6938 VOID\r
6939 );\r
6940\r
6941\r
6942/**\r
6943 Reads the current value of the Control Register 2 (CR2).\r
6944\r
6945 Reads and returns the current value of CR2. This function is only available\r
030cd1a2 6946 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
6947 x64.\r
ac644614 6948\r
6949 @return The value of the Control Register 2 (CR2).\r
6950\r
6951**/\r
6952UINTN\r
6953EFIAPI\r
6954AsmReadCr2 (\r
6955 VOID\r
6956 );\r
6957\r
6958\r
6959/**\r
6960 Reads the current value of the Control Register 3 (CR3).\r
6961\r
6962 Reads and returns the current value of CR3. This function is only available\r
030cd1a2 6963 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
6964 x64.\r
ac644614 6965\r
6966 @return The value of the Control Register 3 (CR3).\r
6967\r
6968**/\r
6969UINTN\r
6970EFIAPI\r
6971AsmReadCr3 (\r
6972 VOID\r
6973 );\r
6974\r
6975\r
6976/**\r
6977 Reads the current value of the Control Register 4 (CR4).\r
6978\r
6979 Reads and returns the current value of CR4. This function is only available\r
030cd1a2 6980 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
6981 x64.\r
ac644614 6982\r
6983 @return The value of the Control Register 4 (CR4).\r
6984\r
6985**/\r
6986UINTN\r
6987EFIAPI\r
6988AsmReadCr4 (\r
6989 VOID\r
6990 );\r
6991\r
6992\r
6993/**\r
6994 Writes a value to Control Register 0 (CR0).\r
6995\r
6996 Writes and returns a new value to CR0. This function is only available on\r
030cd1a2 6997 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 6998\r
6999 @param Cr0 The value to write to CR0.\r
7000\r
7001 @return The value written to CR0.\r
7002\r
7003**/\r
7004UINTN\r
7005EFIAPI\r
7006AsmWriteCr0 (\r
7007 UINTN Cr0\r
7008 );\r
7009\r
7010\r
7011/**\r
7012 Writes a value to Control Register 2 (CR2).\r
7013\r
7014 Writes and returns a new value to CR2. This function is only available on\r
030cd1a2 7015 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7016\r
7017 @param Cr2 The value to write to CR2.\r
7018\r
7019 @return The value written to CR2.\r
7020\r
7021**/\r
7022UINTN\r
7023EFIAPI\r
7024AsmWriteCr2 (\r
7025 UINTN Cr2\r
7026 );\r
7027\r
7028\r
7029/**\r
7030 Writes a value to Control Register 3 (CR3).\r
7031\r
7032 Writes and returns a new value to CR3. This function is only available on\r
030cd1a2 7033 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7034\r
7035 @param Cr3 The value to write to CR3.\r
7036\r
7037 @return The value written to CR3.\r
7038\r
7039**/\r
7040UINTN\r
7041EFIAPI\r
7042AsmWriteCr3 (\r
7043 UINTN Cr3\r
7044 );\r
7045\r
7046\r
7047/**\r
7048 Writes a value to Control Register 4 (CR4).\r
7049\r
7050 Writes and returns a new value to CR4. This function is only available on\r
030cd1a2 7051 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7052\r
7053 @param Cr4 The value to write to CR4.\r
7054\r
7055 @return The value written to CR4.\r
7056\r
7057**/\r
7058UINTN\r
7059EFIAPI\r
7060AsmWriteCr4 (\r
7061 UINTN Cr4\r
7062 );\r
7063\r
7064\r
7065/**\r
7066 Reads the current value of Debug Register 0 (DR0).\r
7067\r
7068 Reads and returns the current value of DR0. This function is only available\r
030cd1a2 7069 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
7070 x64.\r
ac644614 7071\r
7072 @return The value of Debug Register 0 (DR0).\r
7073\r
7074**/\r
7075UINTN\r
7076EFIAPI\r
7077AsmReadDr0 (\r
7078 VOID\r
7079 );\r
7080\r
7081\r
7082/**\r
7083 Reads the current value of Debug Register 1 (DR1).\r
7084\r
7085 Reads and returns the current value of DR1. This function is only available\r
030cd1a2 7086 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
7087 x64.\r
ac644614 7088\r
7089 @return The value of Debug Register 1 (DR1).\r
7090\r
7091**/\r
7092UINTN\r
7093EFIAPI\r
7094AsmReadDr1 (\r
7095 VOID\r
7096 );\r
7097\r
7098\r
7099/**\r
7100 Reads the current value of Debug Register 2 (DR2).\r
7101\r
7102 Reads and returns the current value of DR2. This function is only available\r
030cd1a2 7103 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
7104 x64.\r
ac644614 7105\r
7106 @return The value of Debug Register 2 (DR2).\r
7107\r
7108**/\r
7109UINTN\r
7110EFIAPI\r
7111AsmReadDr2 (\r
7112 VOID\r
7113 );\r
7114\r
7115\r
7116/**\r
7117 Reads the current value of Debug Register 3 (DR3).\r
7118\r
7119 Reads and returns the current value of DR3. This function is only available\r
030cd1a2 7120 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
7121 x64.\r
ac644614 7122\r
7123 @return The value of Debug Register 3 (DR3).\r
7124\r
7125**/\r
7126UINTN\r
7127EFIAPI\r
7128AsmReadDr3 (\r
7129 VOID\r
7130 );\r
7131\r
7132\r
7133/**\r
7134 Reads the current value of Debug Register 4 (DR4).\r
7135\r
7136 Reads and returns the current value of DR4. This function is only available\r
030cd1a2 7137 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
7138 x64.\r
ac644614 7139\r
7140 @return The value of Debug Register 4 (DR4).\r
7141\r
7142**/\r
7143UINTN\r
7144EFIAPI\r
7145AsmReadDr4 (\r
7146 VOID\r
7147 );\r
7148\r
7149\r
7150/**\r
7151 Reads the current value of Debug Register 5 (DR5).\r
7152\r
7153 Reads and returns the current value of DR5. This function is only available\r
030cd1a2 7154 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
7155 x64.\r
ac644614 7156\r
7157 @return The value of Debug Register 5 (DR5).\r
7158\r
7159**/\r
7160UINTN\r
7161EFIAPI\r
7162AsmReadDr5 (\r
7163 VOID\r
7164 );\r
7165\r
7166\r
7167/**\r
7168 Reads the current value of Debug Register 6 (DR6).\r
7169\r
7170 Reads and returns the current value of DR6. This function is only available\r
030cd1a2 7171 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
7172 x64.\r
ac644614 7173\r
7174 @return The value of Debug Register 6 (DR6).\r
7175\r
7176**/\r
7177UINTN\r
7178EFIAPI\r
7179AsmReadDr6 (\r
7180 VOID\r
7181 );\r
7182\r
7183\r
7184/**\r
7185 Reads the current value of Debug Register 7 (DR7).\r
7186\r
7187 Reads and returns the current value of DR7. This function is only available\r
030cd1a2 7188 on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
7189 x64.\r
ac644614 7190\r
7191 @return The value of Debug Register 7 (DR7).\r
7192\r
7193**/\r
7194UINTN\r
7195EFIAPI\r
7196AsmReadDr7 (\r
7197 VOID\r
7198 );\r
7199\r
7200\r
7201/**\r
7202 Writes a value to Debug Register 0 (DR0).\r
7203\r
7204 Writes and returns a new value to DR0. This function is only available on\r
030cd1a2 7205 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7206\r
7207 @param Dr0 The value to write to Dr0.\r
7208\r
7209 @return The value written to Debug Register 0 (DR0).\r
7210\r
7211**/\r
7212UINTN\r
7213EFIAPI\r
7214AsmWriteDr0 (\r
7215 UINTN Dr0\r
7216 );\r
7217\r
7218\r
7219/**\r
7220 Writes a value to Debug Register 1 (DR1).\r
7221\r
7222 Writes and returns a new value to DR1. This function is only available on\r
030cd1a2 7223 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7224\r
7225 @param Dr1 The value to write to Dr1.\r
7226\r
7227 @return The value written to Debug Register 1 (DR1).\r
7228\r
7229**/\r
7230UINTN\r
7231EFIAPI\r
7232AsmWriteDr1 (\r
7233 UINTN Dr1\r
7234 );\r
7235\r
7236\r
7237/**\r
7238 Writes a value to Debug Register 2 (DR2).\r
7239\r
7240 Writes and returns a new value to DR2. This function is only available on\r
030cd1a2 7241 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7242\r
7243 @param Dr2 The value to write to Dr2.\r
7244\r
7245 @return The value written to Debug Register 2 (DR2).\r
7246\r
7247**/\r
7248UINTN\r
7249EFIAPI\r
7250AsmWriteDr2 (\r
7251 UINTN Dr2\r
7252 );\r
7253\r
7254\r
7255/**\r
7256 Writes a value to Debug Register 3 (DR3).\r
7257\r
7258 Writes and returns a new value to DR3. This function is only available on\r
030cd1a2 7259 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7260\r
7261 @param Dr3 The value to write to Dr3.\r
7262\r
7263 @return The value written to Debug Register 3 (DR3).\r
7264\r
7265**/\r
7266UINTN\r
7267EFIAPI\r
7268AsmWriteDr3 (\r
7269 UINTN Dr3\r
7270 );\r
7271\r
7272\r
7273/**\r
7274 Writes a value to Debug Register 4 (DR4).\r
7275\r
7276 Writes and returns a new value to DR4. This function is only available on\r
030cd1a2 7277 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7278\r
7279 @param Dr4 The value to write to Dr4.\r
7280\r
7281 @return The value written to Debug Register 4 (DR4).\r
7282\r
7283**/\r
7284UINTN\r
7285EFIAPI\r
7286AsmWriteDr4 (\r
7287 UINTN Dr4\r
7288 );\r
7289\r
7290\r
7291/**\r
7292 Writes a value to Debug Register 5 (DR5).\r
7293\r
7294 Writes and returns a new value to DR5. This function is only available on\r
030cd1a2 7295 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7296\r
7297 @param Dr5 The value to write to Dr5.\r
7298\r
7299 @return The value written to Debug Register 5 (DR5).\r
7300\r
7301**/\r
7302UINTN\r
7303EFIAPI\r
7304AsmWriteDr5 (\r
7305 UINTN Dr5\r
7306 );\r
7307\r
7308\r
7309/**\r
7310 Writes a value to Debug Register 6 (DR6).\r
7311\r
7312 Writes and returns a new value to DR6. This function is only available on\r
030cd1a2 7313 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7314\r
7315 @param Dr6 The value to write to Dr6.\r
7316\r
7317 @return The value written to Debug Register 6 (DR6).\r
7318\r
7319**/\r
7320UINTN\r
7321EFIAPI\r
7322AsmWriteDr6 (\r
7323 UINTN Dr6\r
7324 );\r
7325\r
7326\r
7327/**\r
7328 Writes a value to Debug Register 7 (DR7).\r
7329\r
7330 Writes and returns a new value to DR7. This function is only available on\r
030cd1a2 7331 IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
ac644614 7332\r
7333 @param Dr7 The value to write to Dr7.\r
7334\r
7335 @return The value written to Debug Register 7 (DR7).\r
7336\r
7337**/\r
7338UINTN\r
7339EFIAPI\r
7340AsmWriteDr7 (\r
7341 UINTN Dr7\r
7342 );\r
7343\r
7344\r
7345/**\r
7346 Reads the current value of Code Segment Register (CS).\r
7347\r
7348 Reads and returns the current value of CS. This function is only available on\r
030cd1a2 7349 IA-32 and x64.\r
ac644614 7350\r
7351 @return The current value of CS.\r
7352\r
7353**/\r
7354UINT16\r
7355EFIAPI\r
7356AsmReadCs (\r
7357 VOID\r
7358 );\r
7359\r
7360\r
7361/**\r
7362 Reads the current value of Data Segment Register (DS).\r
7363\r
7364 Reads and returns the current value of DS. This function is only available on\r
030cd1a2 7365 IA-32 and x64.\r
ac644614 7366\r
7367 @return The current value of DS.\r
7368\r
7369**/\r
7370UINT16\r
7371EFIAPI\r
7372AsmReadDs (\r
7373 VOID\r
7374 );\r
7375\r
7376\r
7377/**\r
7378 Reads the current value of Extra Segment Register (ES).\r
7379\r
7380 Reads and returns the current value of ES. This function is only available on\r
030cd1a2 7381 IA-32 and x64.\r
ac644614 7382\r
7383 @return The current value of ES.\r
7384\r
7385**/\r
7386UINT16\r
7387EFIAPI\r
7388AsmReadEs (\r
7389 VOID\r
7390 );\r
7391\r
7392\r
7393/**\r
7394 Reads the current value of FS Data Segment Register (FS).\r
7395\r
7396 Reads and returns the current value of FS. This function is only available on\r
030cd1a2 7397 IA-32 and x64.\r
ac644614 7398\r
7399 @return The current value of FS.\r
7400\r
7401**/\r
7402UINT16\r
7403EFIAPI\r
7404AsmReadFs (\r
7405 VOID\r
7406 );\r
7407\r
7408\r
7409/**\r
7410 Reads the current value of GS Data Segment Register (GS).\r
7411\r
7412 Reads and returns the current value of GS. This function is only available on\r
030cd1a2 7413 IA-32 and x64.\r
ac644614 7414\r
7415 @return The current value of GS.\r
7416\r
7417**/\r
7418UINT16\r
7419EFIAPI\r
7420AsmReadGs (\r
7421 VOID\r
7422 );\r
7423\r
7424\r
7425/**\r
7426 Reads the current value of Stack Segment Register (SS).\r
7427\r
7428 Reads and returns the current value of SS. This function is only available on\r
030cd1a2 7429 IA-32 and x64.\r
ac644614 7430\r
7431 @return The current value of SS.\r
7432\r
7433**/\r
7434UINT16\r
7435EFIAPI\r
7436AsmReadSs (\r
7437 VOID\r
7438 );\r
7439\r
7440\r
7441/**\r
7442 Reads the current value of Task Register (TR).\r
7443\r
7444 Reads and returns the current value of TR. This function is only available on\r
030cd1a2 7445 IA-32 and x64.\r
ac644614 7446\r
7447 @return The current value of TR.\r
7448\r
7449**/\r
7450UINT16\r
7451EFIAPI\r
7452AsmReadTr (\r
7453 VOID\r
7454 );\r
7455\r
7456\r
7457/**\r
7458 Reads the current Global Descriptor Table Register(GDTR) descriptor.\r
7459\r
7460 Reads and returns the current GDTR descriptor and returns it in Gdtr. This\r
030cd1a2 7461 function is only available on IA-32 and x64.\r
ac644614 7462\r
7463 If Gdtr is NULL, then ASSERT().\r
7464\r
af2dc6a7 7465 @param Gdtr The pointer to a GDTR descriptor.\r
ac644614 7466\r
7467**/\r
7468VOID\r
7469EFIAPI\r
7470AsmReadGdtr (\r
7471 OUT IA32_DESCRIPTOR *Gdtr\r
7472 );\r
7473\r
7474\r
7475/**\r
7476 Writes the current Global Descriptor Table Register (GDTR) descriptor.\r
7477\r
7478 Writes and the current GDTR descriptor specified by Gdtr. This function is\r
030cd1a2 7479 only available on IA-32 and x64.\r
ac644614 7480\r
7481 If Gdtr is NULL, then ASSERT().\r
7482\r
af2dc6a7 7483 @param Gdtr The pointer to a GDTR descriptor.\r
ac644614 7484\r
7485**/\r
7486VOID\r
7487EFIAPI\r
7488AsmWriteGdtr (\r
7489 IN CONST IA32_DESCRIPTOR *Gdtr\r
7490 );\r
7491\r
7492\r
7493/**\r
17f695ed 7494 Reads the current Interrupt Descriptor Table Register(IDTR) descriptor.\r
ac644614 7495\r
7496 Reads and returns the current IDTR descriptor and returns it in Idtr. This\r
030cd1a2 7497 function is only available on IA-32 and x64.\r
ac644614 7498\r
7499 If Idtr is NULL, then ASSERT().\r
7500\r
af2dc6a7 7501 @param Idtr The pointer to a IDTR descriptor.\r
ac644614 7502\r
7503**/\r
7504VOID\r
7505EFIAPI\r
7506AsmReadIdtr (\r
7507 OUT IA32_DESCRIPTOR *Idtr\r
7508 );\r
7509\r
7510\r
7511/**\r
17f695ed 7512 Writes the current Interrupt Descriptor Table Register(IDTR) descriptor.\r
ac644614 7513\r
7514 Writes the current IDTR descriptor and returns it in Idtr. This function is\r
030cd1a2 7515 only available on IA-32 and x64.\r
ac644614 7516\r
7517 If Idtr is NULL, then ASSERT().\r
7518\r
af2dc6a7 7519 @param Idtr The pointer to a IDTR descriptor.\r
ac644614 7520\r
7521**/\r
7522VOID\r
7523EFIAPI\r
7524AsmWriteIdtr (\r
7525 IN CONST IA32_DESCRIPTOR *Idtr\r
7526 );\r
7527\r
7528\r
7529/**\r
7530 Reads the current Local Descriptor Table Register(LDTR) selector.\r
7531\r
7532 Reads and returns the current 16-bit LDTR descriptor value. This function is\r
030cd1a2 7533 only available on IA-32 and x64.\r
ac644614 7534\r
7535 @return The current selector of LDT.\r
7536\r
7537**/\r
7538UINT16\r
7539EFIAPI\r
7540AsmReadLdtr (\r
7541 VOID\r
7542 );\r
7543\r
7544\r
7545/**\r
17f695ed 7546 Writes the current Local Descriptor Table Register (LDTR) selector.\r
ac644614 7547\r
7548 Writes and the current LDTR descriptor specified by Ldtr. This function is\r
030cd1a2 7549 only available on IA-32 and x64.\r
ac644614 7550\r
7551 @param Ldtr 16-bit LDTR selector value.\r
7552\r
7553**/\r
7554VOID\r
7555EFIAPI\r
7556AsmWriteLdtr (\r
7557 IN UINT16 Ldtr\r
7558 );\r
7559\r
7560\r
7561/**\r
7562 Save the current floating point/SSE/SSE2 context to a buffer.\r
7563\r
7564 Saves the current floating point/SSE/SSE2 state to the buffer specified by\r
7565 Buffer. Buffer must be aligned on a 16-byte boundary. This function is only\r
030cd1a2 7566 available on IA-32 and x64.\r
ac644614 7567\r
7568 If Buffer is NULL, then ASSERT().\r
7569 If Buffer is not aligned on a 16-byte boundary, then ASSERT().\r
7570\r
af2dc6a7 7571 @param Buffer The pointer to a buffer to save the floating point/SSE/SSE2 context.\r
ac644614 7572\r
7573**/\r
7574VOID\r
7575EFIAPI\r
7576AsmFxSave (\r
7577 OUT IA32_FX_BUFFER *Buffer\r
7578 );\r
7579\r
7580\r
7581/**\r
7582 Restores the current floating point/SSE/SSE2 context from a buffer.\r
7583\r
7584 Restores the current floating point/SSE/SSE2 state from the buffer specified\r
7585 by Buffer. Buffer must be aligned on a 16-byte boundary. This function is\r
030cd1a2 7586 only available on IA-32 and x64.\r
ac644614 7587\r
7588 If Buffer is NULL, then ASSERT().\r
7589 If Buffer is not aligned on a 16-byte boundary, then ASSERT().\r
7590 If Buffer was not saved with AsmFxSave(), then ASSERT().\r
7591\r
af2dc6a7 7592 @param Buffer The pointer to a buffer to save the floating point/SSE/SSE2 context.\r
ac644614 7593\r
7594**/\r
7595VOID\r
7596EFIAPI\r
7597AsmFxRestore (\r
7598 IN CONST IA32_FX_BUFFER *Buffer\r
7599 );\r
7600\r
7601\r
7602/**\r
7603 Reads the current value of 64-bit MMX Register #0 (MM0).\r
7604\r
7605 Reads and returns the current value of MM0. This function is only available\r
030cd1a2 7606 on IA-32 and x64.\r
ac644614 7607\r
7608 @return The current value of MM0.\r
7609\r
7610**/\r
7611UINT64\r
7612EFIAPI\r
7613AsmReadMm0 (\r
7614 VOID\r
7615 );\r
7616\r
7617\r
7618/**\r
7619 Reads the current value of 64-bit MMX Register #1 (MM1).\r
7620\r
7621 Reads and returns the current value of MM1. This function is only available\r
030cd1a2 7622 on IA-32 and x64.\r
ac644614 7623\r
7624 @return The current value of MM1.\r
7625\r
7626**/\r
7627UINT64\r
7628EFIAPI\r
7629AsmReadMm1 (\r
7630 VOID\r
7631 );\r
7632\r
7633\r
7634/**\r
7635 Reads the current value of 64-bit MMX Register #2 (MM2).\r
7636\r
7637 Reads and returns the current value of MM2. This function is only available\r
030cd1a2 7638 on IA-32 and x64.\r
ac644614 7639\r
7640 @return The current value of MM2.\r
7641\r
7642**/\r
7643UINT64\r
7644EFIAPI\r
7645AsmReadMm2 (\r
7646 VOID\r
7647 );\r
7648\r
7649\r
7650/**\r
7651 Reads the current value of 64-bit MMX Register #3 (MM3).\r
7652\r
7653 Reads and returns the current value of MM3. This function is only available\r
030cd1a2 7654 on IA-32 and x64.\r
ac644614 7655\r
7656 @return The current value of MM3.\r
7657\r
7658**/\r
7659UINT64\r
7660EFIAPI\r
7661AsmReadMm3 (\r
7662 VOID\r
7663 );\r
7664\r
7665\r
7666/**\r
7667 Reads the current value of 64-bit MMX Register #4 (MM4).\r
7668\r
7669 Reads and returns the current value of MM4. This function is only available\r
030cd1a2 7670 on IA-32 and x64.\r
ac644614 7671\r
7672 @return The current value of MM4.\r
7673\r
7674**/\r
7675UINT64\r
7676EFIAPI\r
7677AsmReadMm4 (\r
7678 VOID\r
7679 );\r
7680\r
7681\r
7682/**\r
7683 Reads the current value of 64-bit MMX Register #5 (MM5).\r
7684\r
7685 Reads and returns the current value of MM5. This function is only available\r
030cd1a2 7686 on IA-32 and x64.\r
ac644614 7687\r
7688 @return The current value of MM5.\r
7689\r
7690**/\r
7691UINT64\r
7692EFIAPI\r
7693AsmReadMm5 (\r
7694 VOID\r
7695 );\r
7696\r
7697\r
7698/**\r
7699 Reads the current value of 64-bit MMX Register #6 (MM6).\r
7700\r
7701 Reads and returns the current value of MM6. This function is only available\r
030cd1a2 7702 on IA-32 and x64.\r
ac644614 7703\r
7704 @return The current value of MM6.\r
7705\r
7706**/\r
7707UINT64\r
7708EFIAPI\r
7709AsmReadMm6 (\r
7710 VOID\r
7711 );\r
7712\r
7713\r
7714/**\r
7715 Reads the current value of 64-bit MMX Register #7 (MM7).\r
7716\r
7717 Reads and returns the current value of MM7. This function is only available\r
030cd1a2 7718 on IA-32 and x64.\r
ac644614 7719\r
7720 @return The current value of MM7.\r
7721\r
7722**/\r
7723UINT64\r
7724EFIAPI\r
7725AsmReadMm7 (\r
7726 VOID\r
7727 );\r
7728\r
7729\r
7730/**\r
7731 Writes the current value of 64-bit MMX Register #0 (MM0).\r
7732\r
7733 Writes the current value of MM0. This function is only available on IA32 and\r
030cd1a2 7734 x64.\r
ac644614 7735\r
7736 @param Value The 64-bit value to write to MM0.\r
7737\r
7738**/\r
7739VOID\r
7740EFIAPI\r
7741AsmWriteMm0 (\r
7742 IN UINT64 Value\r
7743 );\r
7744\r
7745\r
7746/**\r
7747 Writes the current value of 64-bit MMX Register #1 (MM1).\r
7748\r
7749 Writes the current value of MM1. This function is only available on IA32 and\r
030cd1a2 7750 x64.\r
ac644614 7751\r
7752 @param Value The 64-bit value to write to MM1.\r
7753\r
7754**/\r
7755VOID\r
7756EFIAPI\r
7757AsmWriteMm1 (\r
7758 IN UINT64 Value\r
7759 );\r
7760\r
7761\r
7762/**\r
7763 Writes the current value of 64-bit MMX Register #2 (MM2).\r
7764\r
7765 Writes the current value of MM2. This function is only available on IA32 and\r
030cd1a2 7766 x64.\r
ac644614 7767\r
7768 @param Value The 64-bit value to write to MM2.\r
7769\r
7770**/\r
7771VOID\r
7772EFIAPI\r
7773AsmWriteMm2 (\r
7774 IN UINT64 Value\r
7775 );\r
7776\r
7777\r
7778/**\r
7779 Writes the current value of 64-bit MMX Register #3 (MM3).\r
7780\r
7781 Writes the current value of MM3. This function is only available on IA32 and\r
030cd1a2 7782 x64.\r
ac644614 7783\r
7784 @param Value The 64-bit value to write to MM3.\r
7785\r
7786**/\r
7787VOID\r
7788EFIAPI\r
7789AsmWriteMm3 (\r
7790 IN UINT64 Value\r
7791 );\r
7792\r
7793\r
7794/**\r
7795 Writes the current value of 64-bit MMX Register #4 (MM4).\r
7796\r
7797 Writes the current value of MM4. This function is only available on IA32 and\r
030cd1a2 7798 x64.\r
ac644614 7799\r
7800 @param Value The 64-bit value to write to MM4.\r
7801\r
7802**/\r
7803VOID\r
7804EFIAPI\r
7805AsmWriteMm4 (\r
7806 IN UINT64 Value\r
7807 );\r
7808\r
7809\r
7810/**\r
7811 Writes the current value of 64-bit MMX Register #5 (MM5).\r
7812\r
7813 Writes the current value of MM5. This function is only available on IA32 and\r
030cd1a2 7814 x64.\r
ac644614 7815\r
7816 @param Value The 64-bit value to write to MM5.\r
7817\r
7818**/\r
7819VOID\r
7820EFIAPI\r
7821AsmWriteMm5 (\r
7822 IN UINT64 Value\r
7823 );\r
7824\r
7825\r
7826/**\r
7827 Writes the current value of 64-bit MMX Register #6 (MM6).\r
7828\r
7829 Writes the current value of MM6. This function is only available on IA32 and\r
030cd1a2 7830 x64.\r
ac644614 7831\r
7832 @param Value The 64-bit value to write to MM6.\r
7833\r
7834**/\r
7835VOID\r
7836EFIAPI\r
7837AsmWriteMm6 (\r
7838 IN UINT64 Value\r
7839 );\r
7840\r
7841\r
7842/**\r
7843 Writes the current value of 64-bit MMX Register #7 (MM7).\r
7844\r
7845 Writes the current value of MM7. This function is only available on IA32 and\r
030cd1a2 7846 x64.\r
ac644614 7847\r
7848 @param Value The 64-bit value to write to MM7.\r
7849\r
7850**/\r
7851VOID\r
7852EFIAPI\r
7853AsmWriteMm7 (\r
7854 IN UINT64 Value\r
7855 );\r
7856\r
7857\r
7858/**\r
7859 Reads the current value of Time Stamp Counter (TSC).\r
7860\r
7861 Reads and returns the current value of TSC. This function is only available\r
030cd1a2 7862 on IA-32 and x64.\r
ac644614 7863\r
7864 @return The current value of TSC\r
7865\r
7866**/\r
7867UINT64\r
7868EFIAPI\r
7869AsmReadTsc (\r
7870 VOID\r
7871 );\r
7872\r
7873\r
7874/**\r
7875 Reads the current value of a Performance Counter (PMC).\r
7876\r
7877 Reads and returns the current value of performance counter specified by\r
030cd1a2 7878 Index. This function is only available on IA-32 and x64.\r
ac644614 7879\r
7880 @param Index The 32-bit Performance Counter index to read.\r
7881\r
7882 @return The value of the PMC specified by Index.\r
7883\r
7884**/\r
7885UINT64\r
7886EFIAPI\r
7887AsmReadPmc (\r
7888 IN UINT32 Index\r
7889 );\r
7890\r
7891\r
7892/**\r
7893 Sets up a monitor buffer that is used by AsmMwait().\r
7894\r
7895 Executes a MONITOR instruction with the register state specified by Eax, Ecx\r
030cd1a2 7896 and Edx. Returns Eax. This function is only available on IA-32 and x64.\r
ac644614 7897\r
7898 @param Eax The value to load into EAX or RAX before executing the MONITOR\r
7899 instruction.\r
7900 @param Ecx The value to load into ECX or RCX before executing the MONITOR\r
7901 instruction.\r
7902 @param Edx The value to load into EDX or RDX before executing the MONITOR\r
7903 instruction.\r
7904\r
7905 @return Eax\r
7906\r
7907**/\r
7908UINTN\r
7909EFIAPI\r
7910AsmMonitor (\r
7911 IN UINTN Eax,\r
7912 IN UINTN Ecx,\r
7913 IN UINTN Edx\r
7914 );\r
7915\r
7916\r
7917/**\r
7918 Executes an MWAIT instruction.\r
7919\r
7920 Executes an MWAIT instruction with the register state specified by Eax and\r
030cd1a2 7921 Ecx. Returns Eax. This function is only available on IA-32 and x64.\r
ac644614 7922\r
7923 @param Eax The value to load into EAX or RAX before executing the MONITOR\r
7924 instruction.\r
7925 @param Ecx The value to load into ECX or RCX before executing the MONITOR\r
7926 instruction.\r
7927\r
7928 @return Eax\r
7929\r
7930**/\r
7931UINTN\r
7932EFIAPI\r
7933AsmMwait (\r
7934 IN UINTN Eax,\r
7935 IN UINTN Ecx\r
7936 );\r
7937\r
7938\r
7939/**\r
7940 Executes a WBINVD instruction.\r
7941\r
7942 Executes a WBINVD instruction. This function is only available on IA-32 and\r
030cd1a2 7943 x64.\r
ac644614 7944\r
7945**/\r
7946VOID\r
7947EFIAPI\r
7948AsmWbinvd (\r
7949 VOID\r
7950 );\r
7951\r
7952\r
7953/**\r
7954 Executes a INVD instruction.\r
7955\r
7956 Executes a INVD instruction. This function is only available on IA-32 and\r
030cd1a2 7957 x64.\r
ac644614 7958\r
7959**/\r
7960VOID\r
7961EFIAPI\r
7962AsmInvd (\r
7963 VOID\r
7964 );\r
7965\r
7966\r
7967/**\r
7968 Flushes a cache line from all the instruction and data caches within the\r
7969 coherency domain of the CPU.\r
7970\r
7971 Flushed the cache line specified by LinearAddress, and returns LinearAddress.\r
030cd1a2 7972 This function is only available on IA-32 and x64.\r
ac644614 7973\r
7974 @param LinearAddress The address of the cache line to flush. If the CPU is\r
7975 in a physical addressing mode, then LinearAddress is a\r
7976 physical address. If the CPU is in a virtual\r
7977 addressing mode, then LinearAddress is a virtual\r
7978 address.\r
7979\r
af2dc6a7 7980 @return LinearAddress.\r
ac644614 7981**/\r
7982VOID *\r
7983EFIAPI\r
7984AsmFlushCacheLine (\r
7985 IN VOID *LinearAddress\r
7986 );\r
7987\r
7988\r
7989/**\r
7990 Enables the 32-bit paging mode on the CPU.\r
7991\r
7992 Enables the 32-bit paging mode on the CPU. CR0, CR3, CR4, and the page tables\r
7993 must be properly initialized prior to calling this service. This function\r
7994 assumes the current execution mode is 32-bit protected mode. This function is\r
7995 only available on IA-32. After the 32-bit paging mode is enabled, control is\r
7996 transferred to the function specified by EntryPoint using the new stack\r
7997 specified by NewStack and passing in the parameters specified by Context1 and\r
7998 Context2. Context1 and Context2 are optional and may be NULL. The function\r
7999 EntryPoint must never return.\r
8000\r
8001 If the current execution mode is not 32-bit protected mode, then ASSERT().\r
8002 If EntryPoint is NULL, then ASSERT().\r
8003 If NewStack is NULL, then ASSERT().\r
8004\r
8005 There are a number of constraints that must be followed before calling this\r
8006 function:\r
8007 1) Interrupts must be disabled.\r
8008 2) The caller must be in 32-bit protected mode with flat descriptors. This\r
8009 means all descriptors must have a base of 0 and a limit of 4GB.\r
8010 3) CR0 and CR4 must be compatible with 32-bit protected mode with flat\r
8011 descriptors.\r
8012 4) CR3 must point to valid page tables that will be used once the transition\r
8013 is complete, and those page tables must guarantee that the pages for this\r
8014 function and the stack are identity mapped.\r
8015\r
8016 @param EntryPoint A pointer to function to call with the new stack after\r
8017 paging is enabled.\r
8018 @param Context1 A pointer to the context to pass into the EntryPoint\r
8019 function as the first parameter after paging is enabled.\r
8020 @param Context2 A pointer to the context to pass into the EntryPoint\r
8021 function as the second parameter after paging is enabled.\r
8022 @param NewStack A pointer to the new stack to use for the EntryPoint\r
8023 function after paging is enabled.\r
8024\r
8025**/\r
8026VOID\r
8027EFIAPI\r
8028AsmEnablePaging32 (\r
8029 IN SWITCH_STACK_ENTRY_POINT EntryPoint,\r
8030 IN VOID *Context1, OPTIONAL\r
8031 IN VOID *Context2, OPTIONAL\r
8032 IN VOID *NewStack\r
8033 );\r
8034\r
8035\r
8036/**\r
8037 Disables the 32-bit paging mode on the CPU.\r
8038\r
8039 Disables the 32-bit paging mode on the CPU and returns to 32-bit protected\r
8040 mode. This function assumes the current execution mode is 32-paged protected\r
8041 mode. This function is only available on IA-32. After the 32-bit paging mode\r
8042 is disabled, control is transferred to the function specified by EntryPoint\r
8043 using the new stack specified by NewStack and passing in the parameters\r
8044 specified by Context1 and Context2. Context1 and Context2 are optional and\r
8045 may be NULL. The function EntryPoint must never return.\r
8046\r
8047 If the current execution mode is not 32-bit paged mode, then ASSERT().\r
8048 If EntryPoint is NULL, then ASSERT().\r
8049 If NewStack is NULL, then ASSERT().\r
8050\r
8051 There are a number of constraints that must be followed before calling this\r
8052 function:\r
8053 1) Interrupts must be disabled.\r
8054 2) The caller must be in 32-bit paged mode.\r
8055 3) CR0, CR3, and CR4 must be compatible with 32-bit paged mode.\r
8056 4) CR3 must point to valid page tables that guarantee that the pages for\r
8057 this function and the stack are identity mapped.\r
8058\r
8059 @param EntryPoint A pointer to function to call with the new stack after\r
8060 paging is disabled.\r
8061 @param Context1 A pointer to the context to pass into the EntryPoint\r
8062 function as the first parameter after paging is disabled.\r
8063 @param Context2 A pointer to the context to pass into the EntryPoint\r
8064 function as the second parameter after paging is\r
8065 disabled.\r
8066 @param NewStack A pointer to the new stack to use for the EntryPoint\r
8067 function after paging is disabled.\r
8068\r
8069**/\r
8070VOID\r
8071EFIAPI\r
8072AsmDisablePaging32 (\r
8073 IN SWITCH_STACK_ENTRY_POINT EntryPoint,\r
8074 IN VOID *Context1, OPTIONAL\r
8075 IN VOID *Context2, OPTIONAL\r
8076 IN VOID *NewStack\r
8077 );\r
8078\r
8079\r
8080/**\r
8081 Enables the 64-bit paging mode on the CPU.\r
8082\r
8083 Enables the 64-bit paging mode on the CPU. CR0, CR3, CR4, and the page tables\r
8084 must be properly initialized prior to calling this service. This function\r
8085 assumes the current execution mode is 32-bit protected mode with flat\r
8086 descriptors. This function is only available on IA-32. After the 64-bit\r
8087 paging mode is enabled, control is transferred to the function specified by\r
8088 EntryPoint using the new stack specified by NewStack and passing in the\r
8089 parameters specified by Context1 and Context2. Context1 and Context2 are\r
8090 optional and may be 0. The function EntryPoint must never return.\r
8091\r
8092 If the current execution mode is not 32-bit protected mode with flat\r
8093 descriptors, then ASSERT().\r
8094 If EntryPoint is 0, then ASSERT().\r
8095 If NewStack is 0, then ASSERT().\r
8096\r
17f695ed 8097 @param Cs The 16-bit selector to load in the CS before EntryPoint\r
ac644614 8098 is called. The descriptor in the GDT that this selector\r
8099 references must be setup for long mode.\r
8100 @param EntryPoint The 64-bit virtual address of the function to call with\r
8101 the new stack after paging is enabled.\r
8102 @param Context1 The 64-bit virtual address of the context to pass into\r
8103 the EntryPoint function as the first parameter after\r
8104 paging is enabled.\r
8105 @param Context2 The 64-bit virtual address of the context to pass into\r
8106 the EntryPoint function as the second parameter after\r
8107 paging is enabled.\r
8108 @param NewStack The 64-bit virtual address of the new stack to use for\r
8109 the EntryPoint function after paging is enabled.\r
8110\r
8111**/\r
8112VOID\r
8113EFIAPI\r
8114AsmEnablePaging64 (\r
17f695ed 8115 IN UINT16 Cs,\r
ac644614 8116 IN UINT64 EntryPoint,\r
8117 IN UINT64 Context1, OPTIONAL\r
8118 IN UINT64 Context2, OPTIONAL\r
8119 IN UINT64 NewStack\r
8120 );\r
8121\r
8122\r
8123/**\r
8124 Disables the 64-bit paging mode on the CPU.\r
8125\r
8126 Disables the 64-bit paging mode on the CPU and returns to 32-bit protected\r
8127 mode. This function assumes the current execution mode is 64-paging mode.\r
030cd1a2 8128 This function is only available on x64. After the 64-bit paging mode is\r
ac644614 8129 disabled, control is transferred to the function specified by EntryPoint\r
8130 using the new stack specified by NewStack and passing in the parameters\r
8131 specified by Context1 and Context2. Context1 and Context2 are optional and\r
8132 may be 0. The function EntryPoint must never return.\r
8133\r
8134 If the current execution mode is not 64-bit paged mode, then ASSERT().\r
8135 If EntryPoint is 0, then ASSERT().\r
8136 If NewStack is 0, then ASSERT().\r
8137\r
17f695ed 8138 @param Cs The 16-bit selector to load in the CS before EntryPoint\r
ac644614 8139 is called. The descriptor in the GDT that this selector\r
8140 references must be setup for 32-bit protected mode.\r
8141 @param EntryPoint The 64-bit virtual address of the function to call with\r
8142 the new stack after paging is disabled.\r
8143 @param Context1 The 64-bit virtual address of the context to pass into\r
8144 the EntryPoint function as the first parameter after\r
8145 paging is disabled.\r
8146 @param Context2 The 64-bit virtual address of the context to pass into\r
8147 the EntryPoint function as the second parameter after\r
8148 paging is disabled.\r
8149 @param NewStack The 64-bit virtual address of the new stack to use for\r
8150 the EntryPoint function after paging is disabled.\r
8151\r
8152**/\r
8153VOID\r
8154EFIAPI\r
8155AsmDisablePaging64 (\r
17f695ed 8156 IN UINT16 Cs,\r
ac644614 8157 IN UINT32 EntryPoint,\r
8158 IN UINT32 Context1, OPTIONAL\r
8159 IN UINT32 Context2, OPTIONAL\r
8160 IN UINT32 NewStack\r
8161 );\r
8162\r
8163\r
8164//\r
8165// 16-bit thunking services\r
8166//\r
8167\r
8168/**\r
8169 Retrieves the properties for 16-bit thunk functions.\r
8170\r
8171 Computes the size of the buffer and stack below 1MB required to use the\r
8172 AsmPrepareThunk16(), AsmThunk16() and AsmPrepareAndThunk16() functions. This\r
8173 buffer size is returned in RealModeBufferSize, and the stack size is returned\r
8174 in ExtraStackSize. If parameters are passed to the 16-bit real mode code,\r
8175 then the actual minimum stack size is ExtraStackSize plus the maximum number\r
8176 of bytes that need to be passed to the 16-bit real mode code.\r
52fa075c 8177 \r
ac644614 8178 If RealModeBufferSize is NULL, then ASSERT().\r
8179 If ExtraStackSize is NULL, then ASSERT().\r
8180\r
8181 @param RealModeBufferSize A pointer to the size of the buffer below 1MB\r
8182 required to use the 16-bit thunk functions.\r
8183 @param ExtraStackSize A pointer to the extra size of stack below 1MB\r
8184 that the 16-bit thunk functions require for\r
8185 temporary storage in the transition to and from\r
8186 16-bit real mode.\r
8187\r
8188**/\r
8189VOID\r
8190EFIAPI\r
8191AsmGetThunk16Properties (\r
8192 OUT UINT32 *RealModeBufferSize,\r
8193 OUT UINT32 *ExtraStackSize\r
8194 );\r
8195\r
8196\r
8197/**\r
8198 Prepares all structures a code required to use AsmThunk16().\r
8199\r
8200 Prepares all structures and code required to use AsmThunk16().\r
52fa075c 8201 \r
8243b089 8202 This interface is limited to be used in either physical mode or virtual modes with paging enabled where the\r
8203 virtual to physical mappings for ThunkContext.RealModeBuffer is mapped 1:1.\r
ac644614 8204\r
8205 If ThunkContext is NULL, then ASSERT().\r
8206\r
8207 @param ThunkContext A pointer to the context structure that describes the\r
8208 16-bit real mode code to call.\r
8209\r
8210**/\r
8211VOID\r
8212EFIAPI\r
8213AsmPrepareThunk16 (\r
1445300f 8214 IN OUT THUNK_CONTEXT *ThunkContext\r
ac644614 8215 );\r
8216\r
8217\r
8218/**\r
8219 Transfers control to a 16-bit real mode entry point and returns the results.\r
8220\r
8221 Transfers control to a 16-bit real mode entry point and returns the results.\r
17f695ed 8222 AsmPrepareThunk16() must be called with ThunkContext before this function is used.\r
8223 This function must be called with interrupts disabled.\r
8224\r
8225 The register state from the RealModeState field of ThunkContext is restored just prior \r
8226 to calling the 16-bit real mode entry point. This includes the EFLAGS field of RealModeState, \r
8227 which is used to set the interrupt state when a 16-bit real mode entry point is called.\r
8228 Control is transferred to the 16-bit real mode entry point specified by the CS and Eip fields of RealModeState.\r
8229 The stack is initialized to the SS and ESP fields of RealModeState. Any parameters passed to \r
8230 the 16-bit real mode code must be populated by the caller at SS:ESP prior to calling this function. \r
8231 The 16-bit real mode entry point is invoked with a 16-bit CALL FAR instruction,\r
8232 so when accessing stack contents, the 16-bit real mode code must account for the 16-bit segment \r
8233 and 16-bit offset of the return address that were pushed onto the stack. The 16-bit real mode entry \r
8234 point must exit with a RETF instruction. The register state is captured into RealModeState immediately \r
8235 after the RETF instruction is executed.\r
8236 \r
8237 If EFLAGS specifies interrupts enabled, or any of the 16-bit real mode code enables interrupts, \r
8238 or any of the 16-bit real mode code makes a SW interrupt, then the caller is responsible for making sure \r
8239 the IDT at address 0 is initialized to handle any HW or SW interrupts that may occur while in 16-bit real mode. \r
8240 \r
8241 If EFLAGS specifies interrupts enabled, or any of the 16-bit real mode code enables interrupts, \r
8242 then the caller is responsible for making sure the 8259 PIC is in a state compatible with 16-bit real mode. \r
8243 This includes the base vectors, the interrupt masks, and the edge/level trigger mode.\r
8244 \r
8245 If THUNK_ATTRIBUTE_BIG_REAL_MODE is set in the ThunkAttributes field of ThunkContext, then the user code \r
8246 is invoked in big real mode. Otherwise, the user code is invoked in 16-bit real mode with 64KB segment limits.\r
8247 \r
8248 If neither THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 nor THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL are set in \r
8249 ThunkAttributes, then it is assumed that the user code did not enable the A20 mask, and no attempt is made to \r
8250 disable the A20 mask.\r
8251 \r
8252 If THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 is set and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL is clear in \r
8253 ThunkAttributes, then attempt to use the INT 15 service to disable the A20 mask. If this INT 15 call fails, \r
8254 then attempt to disable the A20 mask by directly accessing the 8042 keyboard controller I/O ports.\r
8255 \r
8256 If THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 is clear and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL is set in \r
8257 ThunkAttributes, then attempt to disable the A20 mask by directly accessing the 8042 keyboard controller I/O ports.\r
8258 \r
ac644614 8259 If ThunkContext is NULL, then ASSERT().\r
8260 If AsmPrepareThunk16() was not previously called with ThunkContext, then ASSERT().\r
17f695ed 8261 If both THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL are set in \r
8262 ThunkAttributes, then ASSERT().\r
ac644614 8263\r
8243b089 8264 This interface is limited to be used in either physical mode or virtual modes with paging enabled where the\r
af2dc6a7 8265 virtual to physical mappings for ThunkContext.RealModeBuffer are mapped 1:1.\r
52fa075c 8266\r
ac644614 8267 @param ThunkContext A pointer to the context structure that describes the\r
8268 16-bit real mode code to call.\r
8269\r
8270**/\r
8271VOID\r
8272EFIAPI\r
8273AsmThunk16 (\r
8274 IN OUT THUNK_CONTEXT *ThunkContext\r
8275 );\r
8276\r
8277\r
8278/**\r
8279 Prepares all structures and code for a 16-bit real mode thunk, transfers\r
8280 control to a 16-bit real mode entry point, and returns the results.\r
8281\r
8282 Prepares all structures and code for a 16-bit real mode thunk, transfers\r
8283 control to a 16-bit real mode entry point, and returns the results. If the\r
8284 caller only need to perform a single 16-bit real mode thunk, then this\r
8285 service should be used. If the caller intends to make more than one 16-bit\r
8286 real mode thunk, then it is more efficient if AsmPrepareThunk16() is called\r
8287 once and AsmThunk16() can be called for each 16-bit real mode thunk.\r
8288\r
8243b089 8289 This interface is limited to be used in either physical mode or virtual modes with paging enabled where the\r
8290 virtual to physical mappings for ThunkContext.RealModeBuffer is mapped 1:1.\r
52fa075c 8291\r
17f695ed 8292 See AsmPrepareThunk16() and AsmThunk16() for the detailed description and ASSERT() conditions.\r
ac644614 8293\r
8294 @param ThunkContext A pointer to the context structure that describes the\r
8295 16-bit real mode code to call.\r
8296\r
8297**/\r
8298VOID\r
8299EFIAPI\r
8300AsmPrepareAndThunk16 (\r
8301 IN OUT THUNK_CONTEXT *ThunkContext\r
8302 );\r
8303\r
3cfc7813
QL
8304/**\r
8305 Generates a 16-bit random number through RDRAND instruction.\r
8306\r
8307 if Rand is NULL, then ASSERT().\r
8308\r
8309 @param[out] Rand Buffer pointer to store the random result.\r
8310\r
8311 @retval TRUE RDRAND call was successful.\r
8312 @retval FALSE Failed attempts to call RDRAND.\r
8313\r
8314 **/\r
8315BOOLEAN\r
8316EFIAPI\r
8317AsmRdRand16 (\r
8318 OUT UINT16 *Rand\r
8319 );\r
8320\r
8321/**\r
8322 Generates a 32-bit random number through RDRAND instruction.\r
8323\r
8324 if Rand is NULL, then ASSERT().\r
8325\r
8326 @param[out] Rand Buffer pointer to store the random result.\r
8327\r
8328 @retval TRUE RDRAND call was successful.\r
8329 @retval FALSE Failed attempts to call RDRAND.\r
8330\r
8331**/\r
8332BOOLEAN\r
8333EFIAPI\r
8334AsmRdRand32 (\r
8335 OUT UINT32 *Rand\r
8336 );\r
8337\r
8338/**\r
8339 Generates a 64-bit random number through RDRAND instruction.\r
8340\r
8341 if Rand is NULL, then ASSERT().\r
8342\r
8343 @param[out] Rand Buffer pointer to store the random result.\r
8344\r
8345 @retval TRUE RDRAND call was successful.\r
8346 @retval FALSE Failed attempts to call RDRAND.\r
8347\r
8348**/\r
8349BOOLEAN\r
8350EFIAPI\r
8351AsmRdRand64 (\r
8352 OUT UINT64 *Rand\r
8353 );\r
8354\r
ac644614 8355#endif\r
e3a7917f 8356#endif\r
ac644614 8357\r
8358\r