/** @file\r
Provides string functions, linked list functions, math functions, synchronization\r
- functions, and CPU architecture-specific functions.\r
+ functions, file path functions, and CPU architecture-specific functions.\r
\r
-Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
-All rights reserved. This program and the accompanying materials\r
-are licensed and made available under the terms and conditions of the BSD License\r
-which accompanies this distribution. The full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php\r
+Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>\r
+Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
+Copyright (c) Microsoft Corporation.<BR>\r
+Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>\r
\r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
//\r
#if defined (MDE_CPU_IA32)\r
///\r
-/// IA-32 architecture context buffer used by SetJump() and LongJump()\r
+/// The IA-32 architecture context buffer used by SetJump() and LongJump().\r
///\r
typedef struct {\r
UINT32 Ebx;\r
UINT32 Ebp;\r
UINT32 Esp;\r
UINT32 Eip;\r
+ UINT32 Ssp;\r
} BASE_LIBRARY_JUMP_BUFFER;\r
\r
#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 4\r
\r
#endif // defined (MDE_CPU_IA32)\r
\r
-#if defined (MDE_CPU_IPF)\r
-\r
-///\r
-/// Itanium architecture context buffer used by SetJump() and LongJump()\r
-///\r
-typedef struct {\r
- UINT64 F2[2];\r
- UINT64 F3[2];\r
- UINT64 F4[2];\r
- UINT64 F5[2];\r
- UINT64 F16[2];\r
- UINT64 F17[2];\r
- UINT64 F18[2];\r
- UINT64 F19[2];\r
- UINT64 F20[2];\r
- UINT64 F21[2];\r
- UINT64 F22[2];\r
- UINT64 F23[2];\r
- UINT64 F24[2];\r
- UINT64 F25[2];\r
- UINT64 F26[2];\r
- UINT64 F27[2];\r
- UINT64 F28[2];\r
- UINT64 F29[2];\r
- UINT64 F30[2];\r
- UINT64 F31[2];\r
- UINT64 R4;\r
- UINT64 R5;\r
- UINT64 R6;\r
- UINT64 R7;\r
- UINT64 SP;\r
- UINT64 BR0;\r
- UINT64 BR1;\r
- UINT64 BR2;\r
- UINT64 BR3;\r
- UINT64 BR4;\r
- UINT64 BR5;\r
- UINT64 InitialUNAT;\r
- UINT64 AfterSpillUNAT;\r
- UINT64 PFS;\r
- UINT64 BSP;\r
- UINT64 Predicates;\r
- UINT64 LoopCount;\r
- UINT64 FPSR;\r
-} BASE_LIBRARY_JUMP_BUFFER;\r
-\r
-#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 0x10\r
-\r
-#endif // defined (MDE_CPU_IPF)\r
-\r
#if defined (MDE_CPU_X64)\r
///\r
-/// x64 architecture context buffer used by SetJump() and LongJump()\r
+/// The x64 architecture context buffer used by SetJump() and LongJump().\r
///\r
typedef struct {\r
UINT64 Rbx;\r
UINT64 R14;\r
UINT64 R15;\r
UINT64 Rip;\r
+ UINT64 MxCsr;\r
+ UINT8 XmmBuffer[160]; ///< XMM6-XMM15.\r
+ UINT64 Ssp;\r
} BASE_LIBRARY_JUMP_BUFFER;\r
\r
#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8\r
\r
#if defined (MDE_CPU_EBC)\r
///\r
-/// EBC context buffer used by SetJump() and LongJump()\r
+/// The EBC context buffer used by SetJump() and LongJump().\r
///\r
typedef struct {\r
UINT64 R0;\r
\r
#endif // defined (MDE_CPU_EBC)\r
\r
-//\r
-// String Services\r
-//\r
-\r
-/**\r
- Copies one Null-terminated Unicode string to another Null-terminated Unicode\r
- string and returns the new Unicode string.\r
-\r
- This function copies the contents of the Unicode string Source to the Unicode\r
- string Destination, and returns Destination. If Source and Destination\r
- overlap, then the results are undefined.\r
-\r
- If Destination is NULL, then ASSERT().\r
- If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
- If Source is NULL, then ASSERT().\r
- If Source is not aligned on a 16-bit boundary, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
+#if defined (MDE_CPU_ARM)\r
\r
- @param Destination Pointer to a Null-terminated Unicode string.\r
- @param Source Pointer to a Null-terminated Unicode string.\r
+typedef struct {\r
+ UINT32 R3; ///< A copy of R13.\r
+ UINT32 R4;\r
+ UINT32 R5;\r
+ UINT32 R6;\r
+ UINT32 R7;\r
+ UINT32 R8;\r
+ UINT32 R9;\r
+ UINT32 R10;\r
+ UINT32 R11;\r
+ UINT32 R12;\r
+ UINT32 R14;\r
+} BASE_LIBRARY_JUMP_BUFFER;\r
\r
- @return Destination.\r
+#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 4\r
\r
-**/\r
-CHAR16 *\r
-EFIAPI\r
-StrCpy (\r
- OUT CHAR16 *Destination,\r
- IN CONST CHAR16 *Source\r
- );\r
+#endif // defined (MDE_CPU_ARM)\r
\r
+#if defined (MDE_CPU_AARCH64)\r
+typedef struct {\r
+ // GP regs\r
+ UINT64 X19;\r
+ UINT64 X20;\r
+ UINT64 X21;\r
+ UINT64 X22;\r
+ UINT64 X23;\r
+ UINT64 X24;\r
+ UINT64 X25;\r
+ UINT64 X26;\r
+ UINT64 X27;\r
+ UINT64 X28;\r
+ UINT64 FP;\r
+ UINT64 LR;\r
+ UINT64 IP0;\r
+\r
+ // FP regs\r
+ UINT64 D8;\r
+ UINT64 D9;\r
+ UINT64 D10;\r
+ UINT64 D11;\r
+ UINT64 D12;\r
+ UINT64 D13;\r
+ UINT64 D14;\r
+ UINT64 D15;\r
+} BASE_LIBRARY_JUMP_BUFFER;\r
\r
-/**\r
- Copies up to a specified length from one Null-terminated Unicode string to \r
- another Null-terminated Unicode string and returns the new Unicode string.\r
+#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8\r
\r
- This function copies the contents of the Unicode string Source to the Unicode\r
- string Destination, and returns Destination. At most, Length Unicode\r
- characters are copied from Source to Destination. If Length is 0, then\r
- Destination is returned unmodified. If Length is greater that the number of\r
- Unicode characters in Source, then Destination is padded with Null Unicode\r
- characters. If Source and Destination overlap, then the results are\r
- undefined.\r
+#endif // defined (MDE_CPU_AARCH64)\r
\r
- If Length > 0 and Destination is NULL, then ASSERT().\r
- If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r
- If Length > 0 and Source is NULL, then ASSERT().\r
- If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Length is greater than \r
- PcdMaximumUnicodeStringLength, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r
- then ASSERT().\r
+#if defined (MDE_CPU_RISCV64)\r
+///\r
+/// The RISC-V architecture context buffer used by SetJump() and LongJump().\r
+///\r
+typedef struct {\r
+ UINT64 RA;\r
+ UINT64 S0;\r
+ UINT64 S1;\r
+ UINT64 S2;\r
+ UINT64 S3;\r
+ UINT64 S4;\r
+ UINT64 S5;\r
+ UINT64 S6;\r
+ UINT64 S7;\r
+ UINT64 S8;\r
+ UINT64 S9;\r
+ UINT64 S10;\r
+ UINT64 S11;\r
+ UINT64 SP;\r
+} BASE_LIBRARY_JUMP_BUFFER;\r
\r
- @param Destination Pointer to a Null-terminated Unicode string.\r
- @param Source Pointer to a Null-terminated Unicode string.\r
- @param Length Maximum number of Unicode characters to copy.\r
+#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8\r
\r
- @return Destination.\r
+#endif // defined (MDE_CPU_RISCV64)\r
\r
-**/\r
-CHAR16 *\r
-EFIAPI\r
-StrnCpy (\r
- OUT CHAR16 *Destination,\r
- IN CONST CHAR16 *Source,\r
- IN UINTN Length\r
- );\r
+//\r
+// String Services\r
+//\r
\r
\r
/**\r
Returns the length of a Null-terminated Unicode string.\r
\r
- This function returns the number of Unicode characters in the Null-terminated\r
- Unicode string specified by String.\r
+ This function is similar as strlen_s defined in C11.\r
\r
- If String is NULL, then ASSERT().\r
If String is not aligned on a 16-bit boundary, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
\r
- @param String Pointer to a Null-terminated Unicode string.\r
+ @param String A pointer to a Null-terminated Unicode string.\r
+ @param MaxSize The maximum number of Destination Unicode\r
+ char, including terminating null char.\r
\r
- @return The length of String.\r
+ @retval 0 If String is NULL.\r
+ @retval MaxSize If there is no null character in the first MaxSize characters of String.\r
+ @return The number of characters that percede the terminating null character.\r
\r
**/\r
UINTN\r
EFIAPI\r
-StrLen (\r
- IN CONST CHAR16 *String\r
+StrnLenS (\r
+ IN CONST CHAR16 *String,\r
+ IN UINTN MaxSize\r
);\r
\r
-\r
/**\r
Returns the size of a Null-terminated Unicode string in bytes, including the\r
Null terminator.\r
\r
- This function returns the size, in bytes, of the Null-terminated Unicode string \r
- specified by String.\r
+ This function returns the size of the Null-terminated Unicode string\r
+ specified by String in bytes, including the Null terminator.\r
\r
- If String is NULL, then ASSERT().\r
If String is not aligned on a 16-bit boundary, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
\r
- @param String Pointer to a Null-terminated Unicode string.\r
+ @param String A pointer to a Null-terminated Unicode string.\r
+ @param MaxSize The maximum number of Destination Unicode\r
+ char, including the Null terminator.\r
\r
- @return The size of String.\r
+ @retval 0 If String is NULL.\r
+ @retval (sizeof (CHAR16) * (MaxSize + 1))\r
+ If there is no Null terminator in the first MaxSize characters of\r
+ String.\r
+ @return The size of the Null-terminated Unicode string in bytes, including\r
+ the Null terminator.\r
\r
**/\r
UINTN\r
EFIAPI\r
-StrSize (\r
- IN CONST CHAR16 *String\r
+StrnSizeS (\r
+ IN CONST CHAR16 *String,\r
+ IN UINTN MaxSize\r
);\r
\r
-\r
/**\r
- Compares two Null-terminated Unicode strings, and returns the difference\r
- between the first mismatched Unicode characters.\r
+ Copies the string pointed to by Source (including the terminating null char)\r
+ to the array pointed to by Destination.\r
\r
- This function compares the Null-terminated Unicode string FirstString to the\r
- Null-terminated Unicode string SecondString. If FirstString is identical to\r
- SecondString, then 0 is returned. Otherwise, the value returned is the first\r
- mismatched Unicode character in SecondString subtracted from the first\r
- mismatched Unicode character in FirstString.\r
+ This function is similar as strcpy_s defined in C11.\r
\r
- If FirstString is NULL, then ASSERT().\r
- If FirstString is not aligned on a 16-bit boundary, then ASSERT().\r
- If SecondString is NULL, then ASSERT().\r
- If SecondString is not aligned on a 16-bit boundary, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more\r
- than PcdMaximumUnicodeStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more\r
- than PcdMaximumUnicodeStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
+ If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
+ If Source is not aligned on a 16-bit boundary, then ASSERT().\r
\r
- @param FirstString Pointer to a Null-terminated Unicode string.\r
- @param SecondString Pointer to a Null-terminated Unicode string.\r
+ If an error is returned, then the Destination is unmodified.\r
\r
- @retval 0 FirstString is identical to SecondString.\r
- @return others FirstString is not identical to SecondString.\r
+ @param Destination A pointer to a Null-terminated Unicode string.\r
+ @param DestMax The maximum number of Destination Unicode\r
+ char, including terminating null char.\r
+ @param Source A pointer to a Null-terminated Unicode string.\r
\r
+ @retval RETURN_SUCCESS String is copied.\r
+ @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumUnicodeStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
**/\r
-INTN\r
+RETURN_STATUS\r
EFIAPI\r
-StrCmp (\r
- IN CONST CHAR16 *FirstString,\r
- IN CONST CHAR16 *SecondString\r
+StrCpyS (\r
+ OUT CHAR16 *Destination,\r
+ IN UINTN DestMax,\r
+ IN CONST CHAR16 *Source\r
);\r
\r
-\r
/**\r
- Compares up to a specified length the contents of two Null-terminated Unicode strings,\r
- and returns the difference between the first mismatched Unicode characters.\r
- \r
- This function compares the Null-terminated Unicode string FirstString to the\r
- Null-terminated Unicode string SecondString. At most, Length Unicode\r
- characters will be compared. If Length is 0, then 0 is returned. If\r
- FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r
- value returned is the first mismatched Unicode character in SecondString\r
- subtracted from the first mismatched Unicode character in FirstString.\r
+ Copies not more than Length successive char from the string pointed to by\r
+ Source to the array pointed to by Destination. If no null char is copied from\r
+ Source, then Destination[Length] is always set to null.\r
\r
- If Length > 0 and FirstString is NULL, then ASSERT().\r
- If Length > 0 and FirstString is not aligned on a 16-bit boundary, then ASSERT().\r
- If Length > 0 and SecondString is NULL, then ASSERT().\r
- If Length > 0 and SecondString is not aligned on a 16-bit boundary, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Length is greater than\r
- PcdMaximumUnicodeStringLength, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r
- then ASSERT().\r
+ This function is similar as strncpy_s defined in C11.\r
+\r
+ If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r
+ If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r
\r
- @param FirstString Pointer to a Null-terminated Unicode string.\r
- @param SecondString Pointer to a Null-terminated Unicode string.\r
- @param Length Maximum number of Unicode characters to compare.\r
+ If an error is returned, then the Destination is unmodified.\r
\r
- @retval 0 FirstString is identical to SecondString.\r
- @return others FirstString is not identical to SecondString.\r
+ @param Destination A pointer to a Null-terminated Unicode string.\r
+ @param DestMax The maximum number of Destination Unicode\r
+ char, including terminating null char.\r
+ @param Source A pointer to a Null-terminated Unicode string.\r
+ @param Length The maximum number of Unicode characters to copy.\r
\r
+ @retval RETURN_SUCCESS String is copied.\r
+ @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than\r
+ MIN(StrLen(Source), Length).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumUnicodeStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
**/\r
-INTN\r
+RETURN_STATUS\r
EFIAPI\r
-StrnCmp (\r
- IN CONST CHAR16 *FirstString,\r
- IN CONST CHAR16 *SecondString,\r
- IN UINTN Length\r
+StrnCpyS (\r
+ OUT CHAR16 *Destination,\r
+ IN UINTN DestMax,\r
+ IN CONST CHAR16 *Source,\r
+ IN UINTN Length\r
);\r
\r
-\r
/**\r
- Concatenates one Null-terminated Unicode string to another Null-terminated\r
- Unicode string, and returns the concatenated Unicode string.\r
+ Appends a copy of the string pointed to by Source (including the terminating\r
+ null char) to the end of the string pointed to by Destination.\r
\r
- This function concatenates two Null-terminated Unicode strings. The contents\r
- of Null-terminated Unicode string Source are concatenated to the end of\r
- Null-terminated Unicode string Destination. The Null-terminated concatenated\r
- Unicode String is returned. If Source and Destination overlap, then the\r
- results are undefined.\r
+ This function is similar as strcat_s defined in C11.\r
\r
- If Destination is NULL, then ASSERT().\r
If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
- If Source is NULL, then ASSERT().\r
If Source is not aligned on a 16-bit boundary, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Destination contains more\r
- than PcdMaximumUnicodeStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination\r
- and Source results in a Unicode string with more than\r
- PcdMaximumUnicodeStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
\r
- @param Destination Pointer to a Null-terminated Unicode string.\r
- @param Source Pointer to a Null-terminated Unicode string.\r
+ If an error is returned, then the Destination is unmodified.\r
\r
- @return Destination.\r
+ @param Destination A pointer to a Null-terminated Unicode string.\r
+ @param DestMax The maximum number of Destination Unicode\r
+ char, including terminating null char.\r
+ @param Source A pointer to a Null-terminated Unicode string.\r
\r
+ @retval RETURN_SUCCESS String is appended.\r
+ @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r
+ StrLen(Destination).\r
+ @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r
+ greater than StrLen(Source).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumUnicodeStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
**/\r
-CHAR16 *\r
+RETURN_STATUS\r
EFIAPI\r
-StrCat (\r
- IN OUT CHAR16 *Destination,\r
- IN CONST CHAR16 *Source\r
+StrCatS (\r
+ IN OUT CHAR16 *Destination,\r
+ IN UINTN DestMax,\r
+ IN CONST CHAR16 *Source\r
);\r
\r
-\r
/**\r
- Concatenates up to a specified length one Null-terminated Unicode to the end \r
- of another Null-terminated Unicode string, and returns the concatenated \r
- Unicode string.\r
+ Appends not more than Length successive char from the string pointed to by\r
+ Source to the end of the string pointed to by Destination. If no null char is\r
+ copied from Source, then Destination[StrLen(Destination) + Length] is always\r
+ set to null.\r
\r
- This function concatenates two Null-terminated Unicode strings. The contents\r
- of Null-terminated Unicode string Source are concatenated to the end of\r
- Null-terminated Unicode string Destination, and Destination is returned. At\r
- most, Length Unicode characters are concatenated from Source to the end of\r
- Destination, and Destination is always Null-terminated. If Length is 0, then\r
- Destination is returned unmodified. If Source and Destination overlap, then\r
- the results are undefined.\r
+ This function is similar as strncat_s defined in C11.\r
\r
- If Destination is NULL, then ASSERT().\r
- If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r
- If Length > 0 and Source is NULL, then ASSERT().\r
- If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Length is greater than \r
- PcdMaximumUnicodeStringLength, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Destination contains more\r
- than PcdMaximumUnicodeStringLength Unicode characters, not including the\r
- Null-terminator, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters, not including the\r
- Null-terminator, then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination\r
- and Source results in a Unicode string with more than PcdMaximumUnicodeStringLength\r
- Unicode characters, not including the Null-terminator, then ASSERT().\r
+ If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
+ If Source is not aligned on a 16-bit boundary, then ASSERT().\r
\r
- @param Destination Pointer to a Null-terminated Unicode string.\r
- @param Source Pointer to a Null-terminated Unicode string.\r
- @param Length Maximum number of Unicode characters to concatenate from\r
- Source.\r
+ If an error is returned, then the Destination is unmodified.\r
\r
- @return Destination.\r
+ @param Destination A pointer to a Null-terminated Unicode string.\r
+ @param DestMax The maximum number of Destination Unicode\r
+ char, including terminating null char.\r
+ @param Source A pointer to a Null-terminated Unicode string.\r
+ @param Length The maximum number of Unicode characters to copy.\r
\r
+ @retval RETURN_SUCCESS String is appended.\r
+ @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r
+ StrLen(Destination).\r
+ @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r
+ greater than MIN(StrLen(Source), Length).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumUnicodeStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
**/\r
-CHAR16 *\r
+RETURN_STATUS\r
EFIAPI\r
-StrnCat (\r
- IN OUT CHAR16 *Destination,\r
- IN CONST CHAR16 *Source,\r
- IN UINTN Length\r
+StrnCatS (\r
+ IN OUT CHAR16 *Destination,\r
+ IN UINTN DestMax,\r
+ IN CONST CHAR16 *Source,\r
+ IN UINTN Length\r
);\r
\r
/**\r
- Returns the first occurrence of a Null-terminated Unicode sub-string\r
- in a Null-terminated Unicode string.\r
+ Convert a Null-terminated Unicode decimal string to a value of type UINTN.\r
\r
- This function scans the contents of the Null-terminated Unicode string\r
- specified by String and returns the first occurrence of SearchString.\r
- If SearchString is not found in String, then NULL is returned. If\r
- the length of SearchString is zero, then String is\r
- returned.\r
+ This function outputs a value of type UINTN by interpreting the contents of\r
+ the Unicode string specified by String as a decimal number. The format of the\r
+ input Unicode string String is:\r
\r
- If String is NULL, then ASSERT().\r
- If String is not aligned on a 16-bit boundary, then ASSERT().\r
- If SearchString is NULL, then ASSERT().\r
- If SearchString is not aligned on a 16-bit boundary, then ASSERT().\r
+ [spaces] [decimal digits].\r
\r
- If PcdMaximumUnicodeStringLength is not zero, and SearchString\r
- or String contains more than PcdMaximumUnicodeStringLength Unicode\r
- characters not including the Null-terminator, then ASSERT().\r
+ The valid decimal digit character is in the range [0-9]. The function will\r
+ ignore the pad space, which includes spaces or tab characters, before\r
+ [decimal digits]. The running zero in the beginning of [decimal digits] will\r
+ be ignored. Then, the function stops at the first character that is a not a\r
+ valid decimal character or a Null-terminator, whichever one comes first.\r
\r
- @param String Pointer to a Null-terminated Unicode string.\r
- @param SearchString Pointer to a Null-terminated Unicode string to search for.\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
\r
- @retval NULL If the SearchString does not appear in String.\r
- @return others If there is a match.\r
+ If String has no valid decimal digits in the above format, then 0 is stored\r
+ at the location pointed to by Data.\r
+ If the number represented by String exceeds the range defined by UINTN, then\r
+ MAX_UINTN is stored at the location pointed to by Data.\r
+\r
+ If EndPointer is not NULL, a pointer to the character that stopped the scan\r
+ is stored at the location pointed to by EndPointer. If String has no valid\r
+ decimal digits right after the optional pad spaces, the value of String is\r
+ stored at the location pointed to by EndPointer.\r
+\r
+ @param String Pointer to a Null-terminated Unicode string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Data Pointer to the converted value.\r
+\r
+ @retval RETURN_SUCCESS Value is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If PcdMaximumUnicodeStringLength is not\r
+ zero, and String contains more than\r
+ PcdMaximumUnicodeStringLength Unicode\r
+ characters, not including the\r
+ Null-terminator.\r
+ @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
+ the range defined by UINTN.\r
\r
**/\r
-CHAR16 *\r
+RETURN_STATUS\r
EFIAPI\r
-StrStr (\r
- IN CONST CHAR16 *String,\r
- IN CONST CHAR16 *SearchString\r
+StrDecimalToUintnS (\r
+ IN CONST CHAR16 *String,\r
+ OUT CHAR16 **EndPointer, OPTIONAL\r
+ OUT UINTN *Data\r
);\r
\r
/**\r
- Convert a Null-terminated Unicode decimal string to a value of\r
- type UINTN.\r
+ Convert a Null-terminated Unicode decimal string to a value of type UINT64.\r
\r
- This function returns a value of type UINTN by interpreting the contents\r
- of the Unicode string specified by String as a decimal number. The format\r
- of the input Unicode string String is:\r
+ This function outputs a value of type UINT64 by interpreting the contents of\r
+ the Unicode string specified by String as a decimal number. The format of the\r
+ input Unicode string String is:\r
\r
[spaces] [decimal digits].\r
\r
- The valid decimal digit character is in the range [0-9]. The\r
- function will ignore the pad space, which includes spaces or\r
- tab characters, before [decimal digits]. The running zero in the\r
- beginning of [decimal digits] will be ignored. Then, the function\r
- stops at the first character that is a not a valid decimal character\r
- or a Null-terminator, whichever one comes first.\r
+ The valid decimal digit character is in the range [0-9]. The function will\r
+ ignore the pad space, which includes spaces or tab characters, before\r
+ [decimal digits]. The running zero in the beginning of [decimal digits] will\r
+ be ignored. Then, the function stops at the first character that is a not a\r
+ valid decimal character or a Null-terminator, whichever one comes first.\r
\r
- If String is NULL, then ASSERT().\r
If String is not aligned in a 16-bit boundary, then ASSERT().\r
- If String has only pad spaces, then 0 is returned.\r
- If String has no pad spaces or valid decimal digits,\r
- then 0 is returned.\r
- If the number represented by String overflows according\r
- to the range defined by UINTN, then ASSERT().\r
\r
- If PcdMaximumUnicodeStringLength is not zero, and String contains\r
- more than PcdMaximumUnicodeStringLength Unicode characters not including\r
- the Null-terminator, then ASSERT().\r
+ If String has no valid decimal digits in the above format, then 0 is stored\r
+ at the location pointed to by Data.\r
+ If the number represented by String exceeds the range defined by UINT64, then\r
+ MAX_UINT64 is stored at the location pointed to by Data.\r
\r
- @param String Pointer to a Null-terminated Unicode string.\r
+ If EndPointer is not NULL, a pointer to the character that stopped the scan\r
+ is stored at the location pointed to by EndPointer. If String has no valid\r
+ decimal digits right after the optional pad spaces, the value of String is\r
+ stored at the location pointed to by EndPointer.\r
\r
- @retval Value translated from String.\r
+ @param String Pointer to a Null-terminated Unicode string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Data Pointer to the converted value.\r
+\r
+ @retval RETURN_SUCCESS Value is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If PcdMaximumUnicodeStringLength is not\r
+ zero, and String contains more than\r
+ PcdMaximumUnicodeStringLength Unicode\r
+ characters, not including the\r
+ Null-terminator.\r
+ @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
+ the range defined by UINT64.\r
\r
**/\r
-UINTN\r
+RETURN_STATUS\r
EFIAPI\r
-StrDecimalToUintn (\r
- IN CONST CHAR16 *String\r
+StrDecimalToUint64S (\r
+ IN CONST CHAR16 *String,\r
+ OUT CHAR16 **EndPointer, OPTIONAL\r
+ OUT UINT64 *Data\r
);\r
\r
/**\r
- Convert a Null-terminated Unicode decimal string to a value of\r
- type UINT64.\r
+ Convert a Null-terminated Unicode hexadecimal string to a value of type\r
+ UINTN.\r
\r
- This function returns a value of type UINT64 by interpreting the contents\r
- of the Unicode string specified by String as a decimal number. The format\r
- of the input Unicode string String is:\r
+ This function outputs a value of type UINTN by interpreting the contents of\r
+ the Unicode string specified by String as a hexadecimal number. The format of\r
+ the input Unicode string String is:\r
\r
- [spaces] [decimal digits].\r
+ [spaces][zeros][x][hexadecimal digits].\r
\r
- The valid decimal digit character is in the range [0-9]. The\r
- function will ignore the pad space, which includes spaces or\r
- tab characters, before [decimal digits]. The running zero in the\r
- beginning of [decimal digits] will be ignored. Then, the function\r
- stops at the first character that is a not a valid decimal character\r
- or a Null-terminator, whichever one comes first.\r
+ The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
+ The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
+ If "x" appears in the input string, it must be prefixed with at least one 0.\r
+ The function will ignore the pad space, which includes spaces or tab\r
+ characters, before [zeros], [x] or [hexadecimal digit]. The running zero\r
+ before [x] or [hexadecimal digit] will be ignored. Then, the decoding starts\r
+ after [x] or the first valid hexadecimal digit. Then, the function stops at\r
+ the first character that is a not a valid hexadecimal character or NULL,\r
+ whichever one comes first.\r
\r
- If String is NULL, then ASSERT().\r
If String is not aligned in a 16-bit boundary, then ASSERT().\r
- If String has only pad spaces, then 0 is returned.\r
- If String has no pad spaces or valid decimal digits,\r
- then 0 is returned.\r
- If the number represented by String overflows according\r
- to the range defined by UINT64, then ASSERT().\r
\r
- If PcdMaximumUnicodeStringLength is not zero, and String contains\r
- more than PcdMaximumUnicodeStringLength Unicode characters not including\r
- the Null-terminator, then ASSERT().\r
+ If String has no valid hexadecimal digits in the above format, then 0 is\r
+ stored at the location pointed to by Data.\r
+ If the number represented by String exceeds the range defined by UINTN, then\r
+ MAX_UINTN is stored at the location pointed to by Data.\r
\r
- @param String Pointer to a Null-terminated Unicode string.\r
+ If EndPointer is not NULL, a pointer to the character that stopped the scan\r
+ is stored at the location pointed to by EndPointer. If String has no valid\r
+ hexadecimal digits right after the optional pad spaces, the value of String\r
+ is stored at the location pointed to by EndPointer.\r
\r
- @retval Value translated from String.\r
+ @param String Pointer to a Null-terminated Unicode string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Data Pointer to the converted value.\r
+\r
+ @retval RETURN_SUCCESS Value is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If PcdMaximumUnicodeStringLength is not\r
+ zero, and String contains more than\r
+ PcdMaximumUnicodeStringLength Unicode\r
+ characters, not including the\r
+ Null-terminator.\r
+ @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
+ the range defined by UINTN.\r
\r
**/\r
-UINT64\r
+RETURN_STATUS\r
EFIAPI\r
-StrDecimalToUint64 (\r
- IN CONST CHAR16 *String\r
+StrHexToUintnS (\r
+ IN CONST CHAR16 *String,\r
+ OUT CHAR16 **EndPointer, OPTIONAL\r
+ OUT UINTN *Data\r
);\r
- \r
\r
/**\r
- Convert a Null-terminated Unicode hexadecimal string to a value of type UINTN.\r
+ Convert a Null-terminated Unicode hexadecimal string to a value of type\r
+ UINT64.\r
\r
- This function returns a value of type UINTN by interpreting the contents\r
- of the Unicode string specified by String as a hexadecimal number.\r
- The format of the input Unicode string String is:\r
+ This function outputs a value of type UINT64 by interpreting the contents of\r
+ the Unicode string specified by String as a hexadecimal number. The format of\r
+ the input Unicode string String is:\r
\r
[spaces][zeros][x][hexadecimal digits].\r
\r
The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
If "x" appears in the input string, it must be prefixed with at least one 0.\r
- The function will ignore the pad space, which includes spaces or tab characters,\r
- before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or\r
- [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the\r
- first valid hexadecimal digit. Then, the function stops at the first character that is\r
- a not a valid hexadecimal character or NULL, whichever one comes first.\r
+ The function will ignore the pad space, which includes spaces or tab\r
+ characters, before [zeros], [x] or [hexadecimal digit]. The running zero\r
+ before [x] or [hexadecimal digit] will be ignored. Then, the decoding starts\r
+ after [x] or the first valid hexadecimal digit. Then, the function stops at\r
+ the first character that is a not a valid hexadecimal character or NULL,\r
+ whichever one comes first.\r
\r
- If String is NULL, then ASSERT().\r
If String is not aligned in a 16-bit boundary, then ASSERT().\r
- If String has only pad spaces, then zero is returned.\r
- If String has no leading pad spaces, leading zeros or valid hexadecimal digits,\r
- then zero is returned.\r
- If the number represented by String overflows according to the range defined by\r
- UINTN, then ASSERT().\r
\r
- If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator,\r
- then ASSERT().\r
+ If String has no valid hexadecimal digits in the above format, then 0 is\r
+ stored at the location pointed to by Data.\r
+ If the number represented by String exceeds the range defined by UINT64, then\r
+ MAX_UINT64 is stored at the location pointed to by Data.\r
\r
- @param String Pointer to a Null-terminated Unicode string.\r
+ If EndPointer is not NULL, a pointer to the character that stopped the scan\r
+ is stored at the location pointed to by EndPointer. If String has no valid\r
+ hexadecimal digits right after the optional pad spaces, the value of String\r
+ is stored at the location pointed to by EndPointer.\r
\r
- @retval Value translated from String.\r
+ @param String Pointer to a Null-terminated Unicode string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Data Pointer to the converted value.\r
+\r
+ @retval RETURN_SUCCESS Value is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If PcdMaximumUnicodeStringLength is not\r
+ zero, and String contains more than\r
+ PcdMaximumUnicodeStringLength Unicode\r
+ characters, not including the\r
+ Null-terminator.\r
+ @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
+ the range defined by UINT64.\r
\r
**/\r
-UINTN\r
+RETURN_STATUS\r
EFIAPI\r
-StrHexToUintn (\r
- IN CONST CHAR16 *String\r
+StrHexToUint64S (\r
+ IN CONST CHAR16 *String,\r
+ OUT CHAR16 **EndPointer, OPTIONAL\r
+ OUT UINT64 *Data\r
);\r
\r
-\r
/**\r
- Convert a Null-terminated Unicode hexadecimal string to a value of type UINT64.\r
-\r
- This function returns a value of type UINT64 by interpreting the contents\r
- of the Unicode string specified by String as a hexadecimal number.\r
- The format of the input Unicode string String is\r
-\r
- [spaces][zeros][x][hexadecimal digits].\r
-\r
- The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
- The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
- If "x" appears in the input string, it must be prefixed with at least one 0.\r
- The function will ignore the pad space, which includes spaces or tab characters,\r
- before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or\r
- [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the\r
- first valid hexadecimal digit. Then, the function stops at the first character that is\r
- a not a valid hexadecimal character or NULL, whichever one comes first.\r
-\r
- If String is NULL, then ASSERT().\r
- If String is not aligned in a 16-bit boundary, then ASSERT().\r
- If String has only pad spaces, then zero is returned.\r
- If String has no leading pad spaces, leading zeros or valid hexadecimal digits,\r
- then zero is returned.\r
- If the number represented by String overflows according to the range defined by\r
- UINT64, then ASSERT().\r
+ Returns the length of a Null-terminated Ascii string.\r
\r
- If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
- PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator,\r
- then ASSERT().\r
+ This function is similar as strlen_s defined in C11.\r
\r
- @param String Pointer to a Null-terminated Unicode string.\r
+ @param String A pointer to a Null-terminated Ascii string.\r
+ @param MaxSize The maximum number of Destination Ascii\r
+ char, including terminating null char.\r
\r
- @retval Value translated from String.\r
+ @retval 0 If String is NULL.\r
+ @retval MaxSize If there is no null character in the first MaxSize characters of String.\r
+ @return The number of characters that percede the terminating null character.\r
\r
**/\r
-UINT64\r
+UINTN\r
EFIAPI\r
-StrHexToUint64 (\r
- IN CONST CHAR16 *String\r
+AsciiStrnLenS (\r
+ IN CONST CHAR8 *String,\r
+ IN UINTN MaxSize\r
);\r
\r
/**\r
- Convert a Null-terminated Unicode string to a Null-terminated\r
- ASCII string and returns the ASCII string.\r
-\r
- This function converts the content of the Unicode string Source\r
- to the ASCII string Destination by copying the lower 8 bits of\r
- each Unicode character. It returns Destination.\r
-\r
- If any Unicode characters in Source contain non-zero value in\r
- the upper 8 bits, then ASSERT().\r
-\r
- If Destination is NULL, then ASSERT().\r
- If Source is NULL, then ASSERT().\r
- If Source is not aligned on a 16-bit boundary, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
-\r
- If PcdMaximumUnicodeStringLength is not zero, and Source contains\r
- more than PcdMaximumUnicodeStringLength Unicode characters not including\r
- the Null-terminator, then ASSERT().\r
+ Returns the size of a Null-terminated Ascii string in bytes, including the\r
+ Null terminator.\r
\r
- If PcdMaximumAsciiStringLength is not zero, and Source contains more\r
- than PcdMaximumAsciiStringLength Unicode characters not including the\r
- Null-terminator, then ASSERT().\r
+ This function returns the size of the Null-terminated Ascii string specified\r
+ by String in bytes, including the Null terminator.\r
\r
- @param Source Pointer to a Null-terminated Unicode string.\r
- @param Destination Pointer to a Null-terminated ASCII string.\r
+ @param String A pointer to a Null-terminated Ascii string.\r
+ @param MaxSize The maximum number of Destination Ascii\r
+ char, including the Null terminator.\r
\r
- @return Destination.\r
+ @retval 0 If String is NULL.\r
+ @retval (sizeof (CHAR8) * (MaxSize + 1))\r
+ If there is no Null terminator in the first MaxSize characters of\r
+ String.\r
+ @return The size of the Null-terminated Ascii string in bytes, including the\r
+ Null terminator.\r
\r
**/\r
-CHAR8 *\r
+UINTN\r
EFIAPI\r
-UnicodeStrToAsciiStr (\r
- IN CONST CHAR16 *Source,\r
- OUT CHAR8 *Destination\r
+AsciiStrnSizeS (\r
+ IN CONST CHAR8 *String,\r
+ IN UINTN MaxSize\r
);\r
\r
-\r
/**\r
- Copies one Null-terminated ASCII string to another Null-terminated ASCII\r
- string and returns the new ASCII string.\r
+ Copies the string pointed to by Source (including the terminating null char)\r
+ to the array pointed to by Destination.\r
\r
- This function copies the contents of the ASCII string Source to the ASCII\r
- string Destination, and returns Destination. If Source and Destination\r
- overlap, then the results are undefined.\r
-\r
- If Destination is NULL, then ASSERT().\r
- If Source is NULL, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and Source contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
+ This function is similar as strcpy_s defined in C11.\r
\r
- @param Destination Pointer to a Null-terminated ASCII string.\r
- @param Source Pointer to a Null-terminated ASCII string.\r
+ If an error is returned, then the Destination is unmodified.\r
\r
- @return Destination\r
+ @param Destination A pointer to a Null-terminated Ascii string.\r
+ @param DestMax The maximum number of Destination Ascii\r
+ char, including terminating null char.\r
+ @param Source A pointer to a Null-terminated Ascii string.\r
\r
+ @retval RETURN_SUCCESS String is copied.\r
+ @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
**/\r
-CHAR8 *\r
+RETURN_STATUS\r
EFIAPI\r
-AsciiStrCpy (\r
- OUT CHAR8 *Destination,\r
- IN CONST CHAR8 *Source\r
+AsciiStrCpyS (\r
+ OUT CHAR8 *Destination,\r
+ IN UINTN DestMax,\r
+ IN CONST CHAR8 *Source\r
);\r
\r
-\r
/**\r
- Copies up to a specified length one Null-terminated ASCII string to another \r
- Null-terminated ASCII string and returns the new ASCII string.\r
+ Copies not more than Length successive char from the string pointed to by\r
+ Source to the array pointed to by Destination. If no null char is copied from\r
+ Source, then Destination[Length] is always set to null.\r
\r
- This function copies the contents of the ASCII string Source to the ASCII\r
- string Destination, and returns Destination. At most, Length ASCII characters\r
- are copied from Source to Destination. If Length is 0, then Destination is\r
- returned unmodified. If Length is greater that the number of ASCII characters\r
- in Source, then Destination is padded with Null ASCII characters. If Source\r
- and Destination overlap, then the results are undefined.\r
+ This function is similar as strncpy_s defined in C11.\r
\r
- If Destination is NULL, then ASSERT().\r
- If Source is NULL, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and Length is greater than \r
- PcdMaximumAsciiStringLength, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r
- PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
- then ASSERT().\r
-\r
- @param Destination Pointer to a Null-terminated ASCII string.\r
- @param Source Pointer to a Null-terminated ASCII string.\r
- @param Length Maximum number of ASCII characters to copy.\r
+ If an error is returned, then the Destination is unmodified.\r
\r
- @return Destination\r
+ @param Destination A pointer to a Null-terminated Ascii string.\r
+ @param DestMax The maximum number of Destination Ascii\r
+ char, including terminating null char.\r
+ @param Source A pointer to a Null-terminated Ascii string.\r
+ @param Length The maximum number of Ascii characters to copy.\r
\r
+ @retval RETURN_SUCCESS String is copied.\r
+ @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than\r
+ MIN(StrLen(Source), Length).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
**/\r
-CHAR8 *\r
+RETURN_STATUS\r
EFIAPI\r
-AsciiStrnCpy (\r
- OUT CHAR8 *Destination,\r
- IN CONST CHAR8 *Source,\r
- IN UINTN Length\r
+AsciiStrnCpyS (\r
+ OUT CHAR8 *Destination,\r
+ IN UINTN DestMax,\r
+ IN CONST CHAR8 *Source,\r
+ IN UINTN Length\r
);\r
\r
-\r
/**\r
- Returns the length of a Null-terminated ASCII string.\r
-\r
- This function returns the number of ASCII characters in the Null-terminated\r
- ASCII string specified by String.\r
+ Appends a copy of the string pointed to by Source (including the terminating\r
+ null char) to the end of the string pointed to by Destination.\r
\r
- If Length > 0 and Destination is NULL, then ASSERT().\r
- If Length > 0 and Source is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and String contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
+ This function is similar as strcat_s defined in C11.\r
\r
- @param String Pointer to a Null-terminated ASCII string.\r
+ If an error is returned, then the Destination is unmodified.\r
\r
- @return The length of String.\r
+ @param Destination A pointer to a Null-terminated Ascii string.\r
+ @param DestMax The maximum number of Destination Ascii\r
+ char, including terminating null char.\r
+ @param Source A pointer to a Null-terminated Ascii string.\r
\r
+ @retval RETURN_SUCCESS String is appended.\r
+ @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r
+ StrLen(Destination).\r
+ @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r
+ greater than StrLen(Source).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
**/\r
-UINTN\r
+RETURN_STATUS\r
EFIAPI\r
-AsciiStrLen (\r
- IN CONST CHAR8 *String\r
+AsciiStrCatS (\r
+ IN OUT CHAR8 *Destination,\r
+ IN UINTN DestMax,\r
+ IN CONST CHAR8 *Source\r
);\r
\r
-\r
/**\r
- Returns the size of a Null-terminated ASCII string in bytes, including the\r
- Null terminator.\r
-\r
- This function returns the size, in bytes, of the Null-terminated ASCII string\r
- specified by String.\r
+ Appends not more than Length successive char from the string pointed to by\r
+ Source to the end of the string pointed to by Destination. If no null char is\r
+ copied from Source, then Destination[StrLen(Destination) + Length] is always\r
+ set to null.\r
\r
- If String is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and String contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
+ This function is similar as strncat_s defined in C11.\r
\r
- @param String Pointer to a Null-terminated ASCII string.\r
+ If an error is returned, then the Destination is unmodified.\r
\r
- @return The size of String.\r
+ @param Destination A pointer to a Null-terminated Ascii string.\r
+ @param DestMax The maximum number of Destination Ascii\r
+ char, including terminating null char.\r
+ @param Source A pointer to a Null-terminated Ascii string.\r
+ @param Length The maximum number of Ascii characters to copy.\r
\r
+ @retval RETURN_SUCCESS String is appended.\r
+ @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r
+ StrLen(Destination).\r
+ @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r
+ greater than MIN(StrLen(Source), Length).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
**/\r
-UINTN\r
+RETURN_STATUS\r
EFIAPI\r
-AsciiStrSize (\r
- IN CONST CHAR8 *String\r
+AsciiStrnCatS (\r
+ IN OUT CHAR8 *Destination,\r
+ IN UINTN DestMax,\r
+ IN CONST CHAR8 *Source,\r
+ IN UINTN Length\r
);\r
\r
-\r
/**\r
- Compares two Null-terminated ASCII strings, and returns the difference\r
- between the first mismatched ASCII characters.\r
+ Convert a Null-terminated Ascii decimal string to a value of type UINTN.\r
\r
- This function compares the Null-terminated ASCII string FirstString to the\r
- Null-terminated ASCII string SecondString. If FirstString is identical to\r
- SecondString, then 0 is returned. Otherwise, the value returned is the first\r
- mismatched ASCII character in SecondString subtracted from the first\r
- mismatched ASCII character in FirstString.\r
+ This function outputs a value of type UINTN by interpreting the contents of\r
+ the Ascii string specified by String as a decimal number. The format of the\r
+ input Ascii string String is:\r
\r
- If FirstString is NULL, then ASSERT().\r
- If SecondString is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r
- than PcdMaximumAsciiStringLength ASCII characters not including the\r
- Null-terminator, then ASSERT().\r
+ [spaces] [decimal digits].\r
\r
- @param FirstString Pointer to a Null-terminated ASCII string.\r
- @param SecondString Pointer to a Null-terminated ASCII string.\r
+ The valid decimal digit character is in the range [0-9]. The function will\r
+ ignore the pad space, which includes spaces or tab characters, before\r
+ [decimal digits]. The running zero in the beginning of [decimal digits] will\r
+ be ignored. Then, the function stops at the first character that is a not a\r
+ valid decimal character or a Null-terminator, whichever one comes first.\r
\r
- @retval ==0 FirstString is identical to SecondString.\r
- @retval !=0 FirstString is not identical to SecondString.\r
+ If String has no valid decimal digits in the above format, then 0 is stored\r
+ at the location pointed to by Data.\r
+ If the number represented by String exceeds the range defined by UINTN, then\r
+ MAX_UINTN is stored at the location pointed to by Data.\r
+\r
+ If EndPointer is not NULL, a pointer to the character that stopped the scan\r
+ is stored at the location pointed to by EndPointer. If String has no valid\r
+ decimal digits right after the optional pad spaces, the value of String is\r
+ stored at the location pointed to by EndPointer.\r
+\r
+ @param String Pointer to a Null-terminated Ascii string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Data Pointer to the converted value.\r
+\r
+ @retval RETURN_SUCCESS Value is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and String contains more than\r
+ PcdMaximumAsciiStringLength Ascii\r
+ characters, not including the\r
+ Null-terminator.\r
+ @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
+ the range defined by UINTN.\r
\r
**/\r
-INTN\r
+RETURN_STATUS\r
EFIAPI\r
-AsciiStrCmp (\r
- IN CONST CHAR8 *FirstString,\r
- IN CONST CHAR8 *SecondString\r
+AsciiStrDecimalToUintnS (\r
+ IN CONST CHAR8 *String,\r
+ OUT CHAR8 **EndPointer, OPTIONAL\r
+ OUT UINTN *Data\r
);\r
\r
-\r
/**\r
- Performs a case insensitive comparison of two Null-terminated ASCII strings,\r
- and returns the difference between the first mismatched ASCII characters.\r
+ Convert a Null-terminated Ascii decimal string to a value of type UINT64.\r
\r
- This function performs a case insensitive comparison of the Null-terminated\r
- ASCII string FirstString to the Null-terminated ASCII string SecondString. If\r
- FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r
- value returned is the first mismatched lower case ASCII character in\r
- SecondString subtracted from the first mismatched lower case ASCII character\r
- in FirstString.\r
+ This function outputs a value of type UINT64 by interpreting the contents of\r
+ the Ascii string specified by String as a decimal number. The format of the\r
+ input Ascii string String is:\r
\r
- If FirstString is NULL, then ASSERT().\r
- If SecondString is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r
- than PcdMaximumAsciiStringLength ASCII characters not including the\r
- Null-terminator, then ASSERT().\r
+ [spaces] [decimal digits].\r
\r
- @param FirstString Pointer to a Null-terminated ASCII string.\r
- @param SecondString Pointer to a Null-terminated ASCII string.\r
+ The valid decimal digit character is in the range [0-9]. The function will\r
+ ignore the pad space, which includes spaces or tab characters, before\r
+ [decimal digits]. The running zero in the beginning of [decimal digits] will\r
+ be ignored. Then, the function stops at the first character that is a not a\r
+ valid decimal character or a Null-terminator, whichever one comes first.\r
\r
- @retval ==0 FirstString is identical to SecondString using case insensitive\r
- comparisons.\r
- @retval !=0 FirstString is not identical to SecondString using case\r
- insensitive comparisons.\r
+ If String has no valid decimal digits in the above format, then 0 is stored\r
+ at the location pointed to by Data.\r
+ If the number represented by String exceeds the range defined by UINT64, then\r
+ MAX_UINT64 is stored at the location pointed to by Data.\r
+\r
+ If EndPointer is not NULL, a pointer to the character that stopped the scan\r
+ is stored at the location pointed to by EndPointer. If String has no valid\r
+ decimal digits right after the optional pad spaces, the value of String is\r
+ stored at the location pointed to by EndPointer.\r
+\r
+ @param String Pointer to a Null-terminated Ascii string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Data Pointer to the converted value.\r
+\r
+ @retval RETURN_SUCCESS Value is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and String contains more than\r
+ PcdMaximumAsciiStringLength Ascii\r
+ characters, not including the\r
+ Null-terminator.\r
+ @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
+ the range defined by UINT64.\r
\r
**/\r
-INTN\r
+RETURN_STATUS\r
EFIAPI\r
-AsciiStriCmp (\r
- IN CONST CHAR8 *FirstString,\r
- IN CONST CHAR8 *SecondString\r
+AsciiStrDecimalToUint64S (\r
+ IN CONST CHAR8 *String,\r
+ OUT CHAR8 **EndPointer, OPTIONAL\r
+ OUT UINT64 *Data\r
);\r
\r
-\r
/**\r
- Compares two Null-terminated ASCII strings with maximum lengths, and returns\r
- the difference between the first mismatched ASCII characters.\r
+ Convert a Null-terminated Ascii hexadecimal string to a value of type UINTN.\r
\r
- This function compares the Null-terminated ASCII string FirstString to the\r
- Null-terminated ASCII string SecondString. At most, Length ASCII characters\r
- will be compared. If Length is 0, then 0 is returned. If FirstString is\r
- identical to SecondString, then 0 is returned. Otherwise, the value returned\r
- is the first mismatched ASCII character in SecondString subtracted from the\r
- first mismatched ASCII character in FirstString.\r
+ This function outputs a value of type UINTN by interpreting the contents of\r
+ the Ascii string specified by String as a hexadecimal number. The format of\r
+ the input Ascii string String is:\r
\r
- If Length > 0 and FirstString is NULL, then ASSERT().\r
- If Length > 0 and SecondString is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and Length is greater than \r
- PcdMaximumAsciiStringLength, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and FirstString contains more than\r
- PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and SecondString contains more than\r
- PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
- then ASSERT().\r
+ [spaces][zeros][x][hexadecimal digits].\r
\r
- @param FirstString Pointer to a Null-terminated ASCII string.\r
- @param SecondString Pointer to a Null-terminated ASCII string.\r
- @param Length Maximum number of ASCII characters for compare.\r
- \r
- @retval ==0 FirstString is identical to SecondString.\r
- @retval !=0 FirstString is not identical to SecondString.\r
+ The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
+ The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If\r
+ "x" appears in the input string, it must be prefixed with at least one 0. The\r
+ function will ignore the pad space, which includes spaces or tab characters,\r
+ before [zeros], [x] or [hexadecimal digits]. The running zero before [x] or\r
+ [hexadecimal digits] will be ignored. Then, the decoding starts after [x] or\r
+ the first valid hexadecimal digit. Then, the function stops at the first\r
+ character that is a not a valid hexadecimal character or Null-terminator,\r
+ whichever on comes first.\r
+\r
+ If String has no valid hexadecimal digits in the above format, then 0 is\r
+ stored at the location pointed to by Data.\r
+ If the number represented by String exceeds the range defined by UINTN, then\r
+ MAX_UINTN is stored at the location pointed to by Data.\r
+\r
+ If EndPointer is not NULL, a pointer to the character that stopped the scan\r
+ is stored at the location pointed to by EndPointer. If String has no valid\r
+ hexadecimal digits right after the optional pad spaces, the value of String\r
+ is stored at the location pointed to by EndPointer.\r
+\r
+ @param String Pointer to a Null-terminated Ascii string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Data Pointer to the converted value.\r
+\r
+ @retval RETURN_SUCCESS Value is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and String contains more than\r
+ PcdMaximumAsciiStringLength Ascii\r
+ characters, not including the\r
+ Null-terminator.\r
+ @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
+ the range defined by UINTN.\r
\r
**/\r
-INTN\r
+RETURN_STATUS\r
EFIAPI\r
-AsciiStrnCmp (\r
- IN CONST CHAR8 *FirstString,\r
- IN CONST CHAR8 *SecondString,\r
- IN UINTN Length\r
+AsciiStrHexToUintnS (\r
+ IN CONST CHAR8 *String,\r
+ OUT CHAR8 **EndPointer, OPTIONAL\r
+ OUT UINTN *Data\r
);\r
\r
-\r
/**\r
- Concatenates one Null-terminated ASCII string to another Null-terminated\r
- ASCII string, and returns the concatenated ASCII string.\r
+ Convert a Null-terminated Ascii hexadecimal string to a value of type UINT64.\r
\r
- This function concatenates two Null-terminated ASCII strings. The contents of\r
- Null-terminated ASCII string Source are concatenated to the end of Null-\r
- terminated ASCII string Destination. The Null-terminated concatenated ASCII\r
- String is returned.\r
+ This function outputs a value of type UINT64 by interpreting the contents of\r
+ the Ascii string specified by String as a hexadecimal number. The format of\r
+ the input Ascii string String is:\r
\r
- If Destination is NULL, then ASSERT().\r
- If Source is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and Destination contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and Source contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero and concatenating Destination and\r
- Source results in a ASCII string with more than PcdMaximumAsciiStringLength\r
- ASCII characters, then ASSERT().\r
+ [spaces][zeros][x][hexadecimal digits].\r
+\r
+ The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
+ The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If\r
+ "x" appears in the input string, it must be prefixed with at least one 0. The\r
+ function will ignore the pad space, which includes spaces or tab characters,\r
+ before [zeros], [x] or [hexadecimal digits]. The running zero before [x] or\r
+ [hexadecimal digits] will be ignored. Then, the decoding starts after [x] or\r
+ the first valid hexadecimal digit. Then, the function stops at the first\r
+ character that is a not a valid hexadecimal character or Null-terminator,\r
+ whichever on comes first.\r
\r
- @param Destination Pointer to a Null-terminated ASCII string.\r
- @param Source Pointer to a Null-terminated ASCII string.\r
+ If String has no valid hexadecimal digits in the above format, then 0 is\r
+ stored at the location pointed to by Data.\r
+ If the number represented by String exceeds the range defined by UINT64, then\r
+ MAX_UINT64 is stored at the location pointed to by Data.\r
\r
- @return Destination\r
+ If EndPointer is not NULL, a pointer to the character that stopped the scan\r
+ is stored at the location pointed to by EndPointer. If String has no valid\r
+ hexadecimal digits right after the optional pad spaces, the value of String\r
+ is stored at the location pointed to by EndPointer.\r
+\r
+ @param String Pointer to a Null-terminated Ascii string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Data Pointer to the converted value.\r
+\r
+ @retval RETURN_SUCCESS Value is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and String contains more than\r
+ PcdMaximumAsciiStringLength Ascii\r
+ characters, not including the\r
+ Null-terminator.\r
+ @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r
+ the range defined by UINT64.\r
\r
**/\r
-CHAR8 *\r
+RETURN_STATUS\r
EFIAPI\r
-AsciiStrCat (\r
- IN OUT CHAR8 *Destination,\r
- IN CONST CHAR8 *Source\r
+AsciiStrHexToUint64S (\r
+ IN CONST CHAR8 *String,\r
+ OUT CHAR8 **EndPointer, OPTIONAL\r
+ OUT UINT64 *Data\r
);\r
\r
\r
/**\r
- Concatenates up to a specified length one Null-terminated ASCII string to \r
- the end of another Null-terminated ASCII string, and returns the \r
- concatenated ASCII string.\r
+ Returns the length of a Null-terminated Unicode string.\r
\r
- This function concatenates two Null-terminated ASCII strings. The contents\r
- of Null-terminated ASCII string Source are concatenated to the end of Null-\r
- terminated ASCII string Destination, and Destination is returned. At most,\r
- Length ASCII characters are concatenated from Source to the end of\r
- Destination, and Destination is always Null-terminated. If Length is 0, then\r
- Destination is returned unmodified. If Source and Destination overlap, then\r
- the results are undefined.\r
+ This function returns the number of Unicode characters in the Null-terminated\r
+ Unicode string specified by String.\r
\r
- If Length > 0 and Destination is NULL, then ASSERT().\r
- If Length > 0 and Source is NULL, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and Length is greater than\r
- PcdMaximumAsciiStringLength, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and Destination contains more than\r
- PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r
- PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and concatenating Destination and\r
- Source results in a ASCII string with more than PcdMaximumAsciiStringLength\r
- ASCII characters, not including the Null-terminator, then ASSERT().\r
+ If String is NULL, then ASSERT().\r
+ If String is not aligned on a 16-bit boundary, then ASSERT().\r
+ If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
+ PcdMaximumUnicodeStringLength Unicode characters not including the\r
+ Null-terminator, then ASSERT().\r
\r
- @param Destination Pointer to a Null-terminated ASCII string.\r
- @param Source Pointer to a Null-terminated ASCII string.\r
- @param Length Maximum number of ASCII characters to concatenate from\r
- Source.\r
+ @param String Pointer to a Null-terminated Unicode string.\r
\r
- @return Destination\r
+ @return The length of String.\r
\r
**/\r
-CHAR8 *\r
+UINTN\r
EFIAPI\r
-AsciiStrnCat (\r
- IN OUT CHAR8 *Destination,\r
- IN CONST CHAR8 *Source,\r
- IN UINTN Length\r
+StrLen (\r
+ IN CONST CHAR16 *String\r
);\r
\r
\r
/**\r
- Returns the first occurrence of a Null-terminated ASCII sub-string\r
- in a Null-terminated ASCII string.\r
+ Returns the size of a Null-terminated Unicode string in bytes, including the\r
+ Null terminator.\r
\r
- This function scans the contents of the ASCII string specified by String\r
- and returns the first occurrence of SearchString. If SearchString is not\r
- found in String, then NULL is returned. If the length of SearchString is zero,\r
- then String is returned.\r
+ This function returns the size, in bytes, of the Null-terminated Unicode string\r
+ specified by String.\r
\r
If String is NULL, then ASSERT().\r
- If SearchString is NULL, then ASSERT().\r
-\r
- If PcdMaximumAsciiStringLength is not zero, and SearchString or\r
- String contains more than PcdMaximumAsciiStringLength Unicode characters\r
- not including the Null-terminator, then ASSERT().\r
+ If String is not aligned on a 16-bit boundary, then ASSERT().\r
+ If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
+ PcdMaximumUnicodeStringLength Unicode characters not including the\r
+ Null-terminator, then ASSERT().\r
\r
- @param String Pointer to a Null-terminated ASCII string.\r
- @param SearchString Pointer to a Null-terminated ASCII string to search for.\r
+ @param String The pointer to a Null-terminated Unicode string.\r
\r
- @retval NULL If the SearchString does not appear in String.\r
- @retval others If there is a match return the first occurrence of SearchingString.\r
- If the length of SearchString is zero,return String.\r
+ @return The size of String.\r
\r
**/\r
-CHAR8 *\r
+UINTN\r
EFIAPI\r
-AsciiStrStr (\r
- IN CONST CHAR8 *String,\r
- IN CONST CHAR8 *SearchString\r
+StrSize (\r
+ IN CONST CHAR16 *String\r
);\r
\r
\r
/**\r
- Convert a Null-terminated ASCII decimal string to a value of type\r
- UINTN.\r
+ Compares two Null-terminated Unicode strings, and returns the difference\r
+ between the first mismatched Unicode characters.\r
\r
- This function returns a value of type UINTN by interpreting the contents\r
- of the ASCII string String as a decimal number. The format of the input\r
- ASCII string String is:\r
+ This function compares the Null-terminated Unicode string FirstString to the\r
+ Null-terminated Unicode string SecondString. If FirstString is identical to\r
+ SecondString, then 0 is returned. Otherwise, the value returned is the first\r
+ mismatched Unicode character in SecondString subtracted from the first\r
+ mismatched Unicode character in FirstString.\r
\r
- [spaces] [decimal digits].\r
+ If FirstString is NULL, then ASSERT().\r
+ If FirstString is not aligned on a 16-bit boundary, then ASSERT().\r
+ If SecondString is NULL, then ASSERT().\r
+ If SecondString is not aligned on a 16-bit boundary, then ASSERT().\r
+ If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more\r
+ than PcdMaximumUnicodeStringLength Unicode characters not including the\r
+ Null-terminator, then ASSERT().\r
+ If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more\r
+ than PcdMaximumUnicodeStringLength Unicode characters, not including the\r
+ Null-terminator, then ASSERT().\r
\r
- The valid decimal digit character is in the range [0-9]. The function will\r
- ignore the pad space, which includes spaces or tab characters, before the digits.\r
- The running zero in the beginning of [decimal digits] will be ignored. Then, the\r
- function stops at the first character that is a not a valid decimal character or\r
- Null-terminator, whichever on comes first.\r
+ @param FirstString The pointer to a Null-terminated Unicode string.\r
+ @param SecondString The pointer to a Null-terminated Unicode string.\r
\r
- If String has only pad spaces, then 0 is returned.\r
- If String has no pad spaces or valid decimal digits, then 0 is returned.\r
- If the number represented by String overflows according to the range defined by\r
- UINTN, then ASSERT().\r
- If String is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
+ @retval 0 FirstString is identical to SecondString.\r
+ @return others FirstString is not identical to SecondString.\r
+\r
+**/\r
+INTN\r
+EFIAPI\r
+StrCmp (\r
+ IN CONST CHAR16 *FirstString,\r
+ IN CONST CHAR16 *SecondString\r
+ );\r
+\r
+\r
+/**\r
+ Compares up to a specified length the contents of two Null-terminated Unicode strings,\r
+ and returns the difference between the first mismatched Unicode characters.\r
+\r
+ This function compares the Null-terminated Unicode string FirstString to the\r
+ Null-terminated Unicode string SecondString. At most, Length Unicode\r
+ characters will be compared. If Length is 0, then 0 is returned. If\r
+ FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r
+ value returned is the first mismatched Unicode character in SecondString\r
+ subtracted from the first mismatched Unicode character in FirstString.\r
+\r
+ If Length > 0 and FirstString is NULL, then ASSERT().\r
+ If Length > 0 and FirstString is not aligned on a 16-bit boundary, then ASSERT().\r
+ If Length > 0 and SecondString is NULL, then ASSERT().\r
+ If Length > 0 and SecondString is not aligned on a 16-bit boundary, then ASSERT().\r
+ If PcdMaximumUnicodeStringLength is not zero, and Length is greater than\r
+ PcdMaximumUnicodeStringLength, then ASSERT().\r
+ If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more than\r
+ PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r
+ then ASSERT().\r
+ If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more than\r
+ PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r
then ASSERT().\r
\r
- @param String Pointer to a Null-terminated ASCII string.\r
+ @param FirstString The pointer to a Null-terminated Unicode string.\r
+ @param SecondString The pointer to a Null-terminated Unicode string.\r
+ @param Length The maximum number of Unicode characters to compare.\r
\r
- @retval Value translated from String.\r
+ @retval 0 FirstString is identical to SecondString.\r
+ @return others FirstString is not identical to SecondString.\r
\r
**/\r
-UINTN\r
+INTN\r
EFIAPI\r
-AsciiStrDecimalToUintn (\r
- IN CONST CHAR8 *String\r
+StrnCmp (\r
+ IN CONST CHAR16 *FirstString,\r
+ IN CONST CHAR16 *SecondString,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Convert a Null-terminated ASCII decimal string to a value of type\r
- UINT64.\r
-\r
- This function returns a value of type UINT64 by interpreting the contents\r
- of the ASCII string String as a decimal number. The format of the input\r
- ASCII string String is:\r
-\r
- [spaces] [decimal digits].\r
+ Returns the first occurrence of a Null-terminated Unicode sub-string\r
+ in a Null-terminated Unicode string.\r
\r
- The valid decimal digit character is in the range [0-9]. The function will\r
- ignore the pad space, which includes spaces or tab characters, before the digits.\r
- The running zero in the beginning of [decimal digits] will be ignored. Then, the\r
- function stops at the first character that is a not a valid decimal character or\r
- Null-terminator, whichever on comes first.\r
+ This function scans the contents of the Null-terminated Unicode string\r
+ specified by String and returns the first occurrence of SearchString.\r
+ If SearchString is not found in String, then NULL is returned. If\r
+ the length of SearchString is zero, then String is returned.\r
\r
- If String has only pad spaces, then 0 is returned.\r
- If String has no pad spaces or valid decimal digits, then 0 is returned.\r
- If the number represented by String overflows according to the range defined by\r
- UINT64, then ASSERT().\r
If String is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
+ If String is not aligned on a 16-bit boundary, then ASSERT().\r
+ If SearchString is NULL, then ASSERT().\r
+ If SearchString is not aligned on a 16-bit boundary, then ASSERT().\r
+\r
+ If PcdMaximumUnicodeStringLength is not zero, and SearchString\r
+ or String contains more than PcdMaximumUnicodeStringLength Unicode\r
+ characters, not including the Null-terminator, then ASSERT().\r
\r
- @param String Pointer to a Null-terminated ASCII string.\r
+ @param String The pointer to a Null-terminated Unicode string.\r
+ @param SearchString The pointer to a Null-terminated Unicode string to search for.\r
\r
- @retval Value translated from String.\r
+ @retval NULL If the SearchString does not appear in String.\r
+ @return others If there is a match.\r
\r
**/\r
-UINT64\r
+CHAR16 *\r
EFIAPI\r
-AsciiStrDecimalToUint64 (\r
- IN CONST CHAR8 *String\r
+StrStr (\r
+ IN CONST CHAR16 *String,\r
+ IN CONST CHAR16 *SearchString\r
);\r
\r
-\r
/**\r
- Convert a Null-terminated ASCII hexadecimal string to a value of type UINTN.\r
+ Convert a Null-terminated Unicode decimal string to a value of\r
+ type UINTN.\r
\r
- This function returns a value of type UINTN by interpreting the contents of\r
- the ASCII string String as a hexadecimal number. The format of the input ASCII\r
- string String is:\r
+ This function returns a value of type UINTN by interpreting the contents\r
+ of the Unicode string specified by String as a decimal number. The format\r
+ of the input Unicode string String is:\r
\r
- [spaces][zeros][x][hexadecimal digits].\r
+ [spaces] [decimal digits].\r
\r
- The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
- The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x"\r
- appears in the input string, it must be prefixed with at least one 0. The function\r
- will ignore the pad space, which includes spaces or tab characters, before [zeros],\r
- [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits]\r
- will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal\r
- digit. Then, the function stops at the first character that is a not a valid\r
- hexadecimal character or Null-terminator, whichever on comes first.\r
+ The valid decimal digit character is in the range [0-9]. The\r
+ function will ignore the pad space, which includes spaces or\r
+ tab characters, before [decimal digits]. The running zero in the\r
+ beginning of [decimal digits] will be ignored. Then, the function\r
+ stops at the first character that is a not a valid decimal character\r
+ or a Null-terminator, whichever one comes first.\r
\r
+ If String is NULL, then ASSERT().\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
If String has only pad spaces, then 0 is returned.\r
- If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r
- 0 is returned.\r
+ If String has no pad spaces or valid decimal digits,\r
+ then 0 is returned.\r
+ If the number represented by String overflows according\r
+ to the range defined by UINTN, then MAX_UINTN is returned.\r
\r
- If the number represented by String overflows according to the range defined by UINTN,\r
- then ASSERT().\r
- If String is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero,\r
- and String contains more than PcdMaximumAsciiStringLength ASCII characters not including\r
+ If PcdMaximumUnicodeStringLength is not zero, and String contains\r
+ more than PcdMaximumUnicodeStringLength Unicode characters not including\r
the Null-terminator, then ASSERT().\r
\r
- @param String Pointer to a Null-terminated ASCII string.\r
+ @param String The pointer to a Null-terminated Unicode string.\r
\r
@retval Value translated from String.\r
\r
**/\r
UINTN\r
EFIAPI\r
-AsciiStrHexToUintn (\r
- IN CONST CHAR8 *String\r
+StrDecimalToUintn (\r
+ IN CONST CHAR16 *String\r
);\r
\r
-\r
/**\r
- Convert a Null-terminated ASCII hexadecimal string to a value of type UINT64.\r
+ Convert a Null-terminated Unicode decimal string to a value of\r
+ type UINT64.\r
\r
- This function returns a value of type UINT64 by interpreting the contents of\r
- the ASCII string String as a hexadecimal number. The format of the input ASCII\r
- string String is:\r
+ This function returns a value of type UINT64 by interpreting the contents\r
+ of the Unicode string specified by String as a decimal number. The format\r
+ of the input Unicode string String is:\r
\r
- [spaces][zeros][x][hexadecimal digits].\r
+ [spaces] [decimal digits].\r
\r
- The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
- The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x"\r
- appears in the input string, it must be prefixed with at least one 0. The function\r
- will ignore the pad space, which includes spaces or tab characters, before [zeros],\r
- [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits]\r
- will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal\r
- digit. Then, the function stops at the first character that is a not a valid\r
- hexadecimal character or Null-terminator, whichever on comes first.\r
+ The valid decimal digit character is in the range [0-9]. The\r
+ function will ignore the pad space, which includes spaces or\r
+ tab characters, before [decimal digits]. The running zero in the\r
+ beginning of [decimal digits] will be ignored. Then, the function\r
+ stops at the first character that is a not a valid decimal character\r
+ or a Null-terminator, whichever one comes first.\r
\r
+ If String is NULL, then ASSERT().\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
If String has only pad spaces, then 0 is returned.\r
- If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r
- 0 is returned.\r
+ If String has no pad spaces or valid decimal digits,\r
+ then 0 is returned.\r
+ If the number represented by String overflows according\r
+ to the range defined by UINT64, then MAX_UINT64 is returned.\r
\r
- If the number represented by String overflows according to the range defined by UINT64,\r
- then ASSERT().\r
- If String is NULL, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero,\r
- and String contains more than PcdMaximumAsciiStringLength ASCII characters not including\r
+ If PcdMaximumUnicodeStringLength is not zero, and String contains\r
+ more than PcdMaximumUnicodeStringLength Unicode characters not including\r
the Null-terminator, then ASSERT().\r
\r
- @param String Pointer to a Null-terminated ASCII string.\r
+ @param String The pointer to a Null-terminated Unicode string.\r
\r
@retval Value translated from String.\r
\r
**/\r
UINT64\r
EFIAPI\r
-AsciiStrHexToUint64 (\r
- IN CONST CHAR8 *String\r
+StrDecimalToUint64 (\r
+ IN CONST CHAR16 *String\r
);\r
\r
\r
/**\r
- Convert one Null-terminated ASCII string to a Null-terminated\r
- Unicode string and returns the Unicode string.\r
-\r
- This function converts the contents of the ASCII string Source to the Unicode\r
- string Destination, and returns Destination. The function terminates the\r
- Unicode string Destination by appending a Null-terminator character at the end.\r
- The caller is responsible to make sure Destination points to a buffer with size\r
- equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes.\r
-\r
- If Destination is NULL, then ASSERT().\r
- If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
- If Source is NULL, then ASSERT().\r
- If Source and Destination overlap, then ASSERT().\r
- If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
- then ASSERT().\r
- If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r
- PcdMaximumUnicodeStringLength ASCII characters not including the\r
- Null-terminator, then ASSERT().\r
-\r
- @param Source Pointer to a Null-terminated ASCII string.\r
- @param Destination Pointer to a Null-terminated Unicode string.\r
-\r
- @return Destination.\r
+ Convert a Null-terminated Unicode hexadecimal string to a value of type UINTN.\r
\r
-**/\r
-CHAR16 *\r
-EFIAPI\r
-AsciiStrToUnicodeStr (\r
- IN CONST CHAR8 *Source,\r
- OUT CHAR16 *Destination\r
- );\r
+ This function returns a value of type UINTN by interpreting the contents\r
+ of the Unicode string specified by String as a hexadecimal number.\r
+ The format of the input Unicode string String is:\r
\r
+ [spaces][zeros][x][hexadecimal digits].\r
\r
-/**\r
- Converts an 8-bit value to an 8-bit BCD value.\r
+ The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
+ The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
+ If "x" appears in the input string, it must be prefixed with at least one 0.\r
+ The function will ignore the pad space, which includes spaces or tab characters,\r
+ before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or\r
+ [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the\r
+ first valid hexadecimal digit. Then, the function stops at the first character\r
+ that is a not a valid hexadecimal character or NULL, whichever one comes first.\r
\r
- Converts the 8-bit value specified by Value to BCD. The BCD value is\r
- returned.\r
+ If String is NULL, then ASSERT().\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
+ If String has only pad spaces, then zero is returned.\r
+ If String has no leading pad spaces, leading zeros or valid hexadecimal digits,\r
+ then zero is returned.\r
+ If the number represented by String overflows according to the range defined by\r
+ UINTN, then MAX_UINTN is returned.\r
\r
- If Value >= 100, then ASSERT().\r
+ If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
+ PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator,\r
+ then ASSERT().\r
\r
- @param Value The 8-bit value to convert to BCD. Range 0..99.\r
+ @param String The pointer to a Null-terminated Unicode string.\r
\r
- @return The BCD value.\r
+ @retval Value translated from String.\r
\r
**/\r
-UINT8\r
+UINTN\r
EFIAPI\r
-DecimalToBcd8 (\r
- IN UINT8 Value\r
+StrHexToUintn (\r
+ IN CONST CHAR16 *String\r
);\r
\r
\r
/**\r
- Converts an 8-bit BCD value to an 8-bit value.\r
+ Convert a Null-terminated Unicode hexadecimal string to a value of type UINT64.\r
\r
- Converts the 8-bit BCD value specified by Value to an 8-bit value. The 8-bit\r
- value is returned.\r
+ This function returns a value of type UINT64 by interpreting the contents\r
+ of the Unicode string specified by String as a hexadecimal number.\r
+ The format of the input Unicode string String is\r
\r
- If Value >= 0xA0, then ASSERT().\r
- If (Value & 0x0F) >= 0x0A, then ASSERT().\r
+ [spaces][zeros][x][hexadecimal digits].\r
\r
- @param Value The 8-bit BCD value to convert to an 8-bit value.\r
-\r
- @return The 8-bit value is returned.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-BcdToDecimal8 (\r
- IN UINT8 Value\r
- );\r
-\r
-\r
-//\r
-// Linked List Functions and Macros\r
-//\r
-\r
-/**\r
- Initializes the head node of a doubly linked list that is declared as a\r
- global variable in a module.\r
-\r
- Initializes the forward and backward links of a new linked list. After\r
- initializing a linked list with this macro, the other linked list functions\r
- may be used to add and remove nodes from the linked list. This macro results\r
- in smaller executables by initializing the linked list in the data section,\r
- instead if calling the InitializeListHead() function to perform the\r
- equivalent operation.\r
-\r
- @param ListHead The head note of a list to initialize.\r
-\r
-**/\r
-#define INITIALIZE_LIST_HEAD_VARIABLE(ListHead) {&(ListHead), &(ListHead)}\r
-\r
-\r
-/**\r
- Initializes the head node of a doubly linked list, and returns the pointer to\r
- the head node of the doubly linked list.\r
-\r
- Initializes the forward and backward links of a new linked list. After\r
- initializing a linked list with this function, the other linked list\r
- functions may be used to add and remove nodes from the linked list. It is up\r
- to the caller of this function to allocate the memory for ListHead.\r
-\r
- If ListHead is NULL, then ASSERT().\r
-\r
- @param ListHead A pointer to the head node of a new doubly linked list.\r
-\r
- @return ListHead\r
-\r
-**/\r
-LIST_ENTRY *\r
-EFIAPI\r
-InitializeListHead (\r
- IN OUT LIST_ENTRY *ListHead\r
- );\r
-\r
-\r
-/**\r
- Adds a node to the beginning of a doubly linked list, and returns the pointer\r
- to the head node of the doubly linked list.\r
-\r
- Adds the node Entry at the beginning of the doubly linked list denoted by\r
- ListHead, and returns ListHead.\r
-\r
- If ListHead is NULL, then ASSERT().\r
- If Entry is NULL, then ASSERT().\r
- If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
- InitializeListHead(), then ASSERT().\r
- If PcdMaximumLinkedListLenth is not zero, and prior to insertion the number\r
- of nodes in ListHead, including the ListHead node, is greater than or\r
- equal to PcdMaximumLinkedListLength, then ASSERT().\r
-\r
- @param ListHead A pointer to the head node of a doubly linked list.\r
- @param Entry A pointer to a node that is to be inserted at the beginning\r
- of a doubly linked list.\r
-\r
- @return ListHead\r
-\r
-**/\r
-LIST_ENTRY *\r
-EFIAPI\r
-InsertHeadList (\r
- IN OUT LIST_ENTRY *ListHead,\r
- IN OUT LIST_ENTRY *Entry\r
- );\r
-\r
-\r
-/**\r
- Adds a node to the end of a doubly linked list, and returns the pointer to\r
- the head node of the doubly linked list.\r
-\r
- Adds the node Entry to the end of the doubly linked list denoted by ListHead,\r
- and returns ListHead.\r
-\r
- If ListHead is NULL, then ASSERT().\r
- If Entry is NULL, then ASSERT().\r
- If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
- InitializeListHead(), then ASSERT().\r
- If PcdMaximumLinkedListLenth is not zero, and prior to insertion the number\r
- of nodes in ListHead, including the ListHead node, is greater than or\r
- equal to PcdMaximumLinkedListLength, then ASSERT().\r
-\r
- @param ListHead A pointer to the head node of a doubly linked list.\r
- @param Entry A pointer to a node that is to be added at the end of the\r
- doubly linked list.\r
-\r
- @return ListHead\r
-\r
-**/\r
-LIST_ENTRY *\r
-EFIAPI\r
-InsertTailList (\r
- IN OUT LIST_ENTRY *ListHead,\r
- IN OUT LIST_ENTRY *Entry\r
- );\r
-\r
-\r
-/**\r
- Retrieves the first node of a doubly linked list.\r
-\r
- Returns the first node of a doubly linked list. List must have been \r
- initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
- If List is empty, then List is returned.\r
-\r
- If List is NULL, then ASSERT().\r
- If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
- InitializeListHead(), then ASSERT().\r
- If PcdMaximumLinkedListLenth is not zero, and the number of nodes\r
- in List, including the List node, is greater than or equal to\r
- PcdMaximumLinkedListLength, then ASSERT().\r
-\r
- @param List A pointer to the head node of a doubly linked list.\r
-\r
- @return The first node of a doubly linked list.\r
- @retval NULL The list is empty.\r
-\r
-**/\r
-LIST_ENTRY *\r
-EFIAPI\r
-GetFirstNode (\r
- IN CONST LIST_ENTRY *List\r
- );\r
-\r
-\r
-/**\r
- Retrieves the next node of a doubly linked list.\r
-\r
- Returns the node of a doubly linked list that follows Node. \r
- List must have been initialized with INTIALIZE_LIST_HEAD_VARIABLE()\r
- or InitializeListHead(). If List is empty, then List is returned.\r
-\r
- If List is NULL, then ASSERT().\r
- If Node is NULL, then ASSERT().\r
- If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
- InitializeListHead(), then ASSERT().\r
- If PcdMaximumLinkedListLenth is not zero, and List contains more than\r
- PcdMaximumLinkedListLenth nodes, then ASSERT().\r
- If Node is not a node in List, then ASSERT().\r
-\r
- @param List A pointer to the head node of a doubly linked list.\r
- @param Node A pointer to a node in the doubly linked list.\r
-\r
- @return Pointer to the next node if one exists. Otherwise a null value which\r
- is actually List is returned.\r
-\r
-**/\r
-LIST_ENTRY *\r
-EFIAPI\r
-GetNextNode (\r
- IN CONST LIST_ENTRY *List,\r
- IN CONST LIST_ENTRY *Node\r
- );\r
-\r
-\r
-/**\r
- Checks to see if a doubly linked list is empty or not.\r
-\r
- Checks to see if the doubly linked list is empty. If the linked list contains\r
- zero nodes, this function returns TRUE. Otherwise, it returns FALSE.\r
-\r
- If ListHead is NULL, then ASSERT().\r
- If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or \r
- InitializeListHead(), then ASSERT().\r
- If PcdMaximumLinkedListLenth is not zero, and the number of nodes\r
- in List, including the List node, is greater than or equal to\r
- PcdMaximumLinkedListLength, then ASSERT().\r
-\r
- @param ListHead A pointer to the head node of a doubly linked list.\r
-\r
- @retval TRUE The linked list is empty.\r
- @retval FALSE The linked list is not empty.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-IsListEmpty (\r
- IN CONST LIST_ENTRY *ListHead\r
- );\r
-\r
-\r
-/**\r
- Determines if a node in a doubly linked list is the head node of a the same\r
- doubly linked list. This function is typically used to terminate a loop that\r
- traverses all the nodes in a doubly linked list starting with the head node.\r
+ The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
+ The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r
+ If "x" appears in the input string, it must be prefixed with at least one 0.\r
+ The function will ignore the pad space, which includes spaces or tab characters,\r
+ before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or\r
+ [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the\r
+ first valid hexadecimal digit. Then, the function stops at the first character that is\r
+ a not a valid hexadecimal character or NULL, whichever one comes first.\r
\r
- Returns TRUE if Node is equal to List. Returns FALSE if Node is one of the\r
- nodes in the doubly linked list specified by List. List must have been\r
- initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
+ If String is NULL, then ASSERT().\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
+ If String has only pad spaces, then zero is returned.\r
+ If String has no leading pad spaces, leading zeros or valid hexadecimal digits,\r
+ then zero is returned.\r
+ If the number represented by String overflows according to the range defined by\r
+ UINT64, then MAX_UINT64 is returned.\r
\r
- If List is NULL, then ASSERT().\r
- If Node is NULL, then ASSERT().\r
- If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead(), \r
+ If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r
+ PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator,\r
then ASSERT().\r
- If PcdMaximumLinkedListLenth is not zero, and the number of nodes\r
- in List, including the List node, is greater than or equal to\r
- PcdMaximumLinkedListLength, then ASSERT().\r
- If Node is not a node in List and Node is not equal to List, then ASSERT().\r
-\r
- @param List A pointer to the head node of a doubly linked list.\r
- @param Node A pointer to a node in the doubly linked list.\r
-\r
- @retval TRUE Node is one of the nodes in the doubly linked list.\r
- @retval FALSE Node is not one of the nodes in the doubly linked list.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-IsNull (\r
- IN CONST LIST_ENTRY *List,\r
- IN CONST LIST_ENTRY *Node\r
- );\r
-\r
-\r
-/**\r
- Determines if a node the last node in a doubly linked list.\r
-\r
- Returns TRUE if Node is the last node in the doubly linked list specified by\r
- List. Otherwise, FALSE is returned. List must have been initialized with\r
- INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
-\r
- If List is NULL, then ASSERT().\r
- If Node is NULL, then ASSERT().\r
- If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
- InitializeListHead(), then ASSERT().\r
- If PcdMaximumLinkedListLenth is not zero, and the number of nodes\r
- in List, including the List node, is greater than or equal to\r
- PcdMaximumLinkedListLength, then ASSERT().\r
- If Node is not a node in List, then ASSERT().\r
-\r
- @param List A pointer to the head node of a doubly linked list.\r
- @param Node A pointer to a node in the doubly linked list.\r
-\r
- @retval TRUE Node is the last node in the linked list.\r
- @retval FALSE Node is not the last node in the linked list.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-IsNodeAtEnd (\r
- IN CONST LIST_ENTRY *List,\r
- IN CONST LIST_ENTRY *Node\r
- );\r
-\r
-\r
-/**\r
- Swaps the location of two nodes in a doubly linked list, and returns the\r
- first node after the swap.\r
-\r
- If FirstEntry is identical to SecondEntry, then SecondEntry is returned.\r
- Otherwise, the location of the FirstEntry node is swapped with the location\r
- of the SecondEntry node in a doubly linked list. SecondEntry must be in the\r
- same double linked list as FirstEntry and that double linked list must have\r
- been initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead(). \r
- SecondEntry is returned after the nodes are swapped.\r
-\r
- If FirstEntry is NULL, then ASSERT().\r
- If SecondEntry is NULL, then ASSERT().\r
- If SecondEntry and FirstEntry are not in the same linked list, then ASSERT().\r
- If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
- linked list containing the FirstEntry and SecondEntry nodes, including\r
- the FirstEntry and SecondEntry nodes, is greater than or equal to\r
- PcdMaximumLinkedListLength, then ASSERT().\r
-\r
- @param FirstEntry A pointer to a node in a linked list.\r
- @param SecondEntry A pointer to another node in the same linked list.\r
- \r
- @return SecondEntry.\r
-\r
-**/\r
-LIST_ENTRY *\r
-EFIAPI\r
-SwapListEntries (\r
- IN OUT LIST_ENTRY *FirstEntry,\r
- IN OUT LIST_ENTRY *SecondEntry\r
- );\r
-\r
-\r
-/**\r
- Removes a node from a doubly linked list, and returns the node that follows\r
- the removed node.\r
-\r
- Removes the node Entry from a doubly linked list. It is up to the caller of\r
- this function to release the memory used by this node if that is required. On\r
- exit, the node following Entry in the doubly linked list is returned. If\r
- Entry is the only node in the linked list, then the head node of the linked\r
- list is returned.\r
-\r
- If Entry is NULL, then ASSERT().\r
- If Entry is the head node of an empty list, then ASSERT().\r
- If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
- linked list containing Entry, including the Entry node, is greater than\r
- or equal to PcdMaximumLinkedListLength, then ASSERT().\r
-\r
- @param Entry A pointer to a node in a linked list.\r
-\r
- @return Entry.\r
-\r
-**/\r
-LIST_ENTRY *\r
-EFIAPI\r
-RemoveEntryList (\r
- IN CONST LIST_ENTRY *Entry\r
- );\r
-\r
-//\r
-// Math Services\r
-//\r
-\r
-/**\r
- Shifts a 64-bit integer left between 0 and 63 bits. The low bits are filled\r
- with zeros. The shifted value is returned.\r
-\r
- This function shifts the 64-bit value Operand to the left by Count bits. The\r
- low Count bits are set to zero. The shifted value is returned.\r
-\r
- If Count is greater than 63, then ASSERT().\r
\r
- @param Operand The 64-bit operand to shift left.\r
- @param Count The number of bits to shift left.\r
+ @param String The pointer to a Null-terminated Unicode string.\r
\r
- @return Operand << Count.\r
+ @retval Value translated from String.\r
\r
**/\r
UINT64\r
EFIAPI\r
-LShiftU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+StrHexToUint64 (\r
+ IN CONST CHAR16 *String\r
);\r
\r
-\r
/**\r
- Shifts a 64-bit integer right between 0 and 63 bits. This high bits are\r
- filled with zeros. The shifted value is returned.\r
+ Convert a Null-terminated Unicode string to IPv6 address and prefix length.\r
\r
- This function shifts the 64-bit value Operand to the right by Count bits. The\r
- high Count bits are set to zero. The shifted value is returned.\r
-\r
- If Count is greater than 63, then ASSERT().\r
+ This function outputs a value of type IPv6_ADDRESS and may output a value\r
+ of type UINT8 by interpreting the contents of the Unicode string specified\r
+ by String. The format of the input Unicode string String is as follows:\r
\r
- @param Operand The 64-bit operand to shift right.\r
- @param Count The number of bits to shift right.\r
+ X:X:X:X:X:X:X:X[/P]\r
\r
- @return Operand >> Count\r
+ X contains one to four hexadecimal digit characters in the range [0-9], [a-f] and\r
+ [A-F]. X is converted to a value of type UINT16, whose low byte is stored in low\r
+ memory address and high byte is stored in high memory address. P contains decimal\r
+ digit characters in the range [0-9]. The running zero in the beginning of P will\r
+ be ignored. /P is optional.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-RShiftU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
- );\r
+ When /P is not in the String, the function stops at the first character that is\r
+ not a valid hexadecimal digit character after eight X's are converted.\r
\r
+ When /P is in the String, the function stops at the first character that is not\r
+ a valid decimal digit character after P is converted.\r
\r
-/**\r
- Shifts a 64-bit integer right between 0 and 63 bits. The high bits are filled\r
- with original integer's bit 63. The shifted value is returned.\r
+ "::" can be used to compress one or more groups of X when X contains only 0.\r
+ The "::" can only appear once in the String.\r
\r
- This function shifts the 64-bit value Operand to the right by Count bits. The\r
- high Count bits are set to bit 63 of Operand. The shifted value is returned.\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
\r
- If Count is greater than 63, then ASSERT().\r
+ If EndPointer is not NULL and Address is translated from String, a pointer\r
+ to the character that stopped the scan is stored at the location pointed to\r
+ by EndPointer.\r
\r
- @param Operand The 64-bit operand to shift right.\r
- @param Count The number of bits to shift right.\r
+ @param String Pointer to a Null-terminated Unicode string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Address Pointer to the converted IPv6 address.\r
+ @param PrefixLength Pointer to the converted IPv6 address prefix\r
+ length. MAX_UINT8 is returned when /P is\r
+ not in the String.\r
\r
- @return Operand >> Count\r
+ @retval RETURN_SUCCESS Address is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ @retval RETURN_UNSUPPORTED If X contains more than four hexadecimal\r
+ digit characters.\r
+ If String contains "::" and number of X\r
+ is not less than 8.\r
+ If P starts with character that is not a\r
+ valid decimal digit character.\r
+ If the decimal number converted from P\r
+ exceeds 128.\r
\r
**/\r
-UINT64\r
+RETURN_STATUS\r
EFIAPI\r
-ARShiftU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+StrToIpv6Address (\r
+ IN CONST CHAR16 *String,\r
+ OUT CHAR16 **EndPointer, OPTIONAL\r
+ OUT IPv6_ADDRESS *Address,\r
+ OUT UINT8 *PrefixLength OPTIONAL\r
);\r
\r
-\r
/**\r
- Rotates a 32-bit integer left between 0 and 31 bits, filling the low bits\r
- with the high bits that were rotated.\r
+ Convert a Null-terminated Unicode string to IPv4 address and prefix length.\r
\r
- This function rotates the 32-bit value Operand to the left by Count bits. The\r
- low Count bits are fill with the high Count bits of Operand. The rotated\r
- value is returned.\r
+ This function outputs a value of type IPv4_ADDRESS and may output a value\r
+ of type UINT8 by interpreting the contents of the Unicode string specified\r
+ by String. The format of the input Unicode string String is as follows:\r
\r
- If Count is greater than 31, then ASSERT().\r
+ D.D.D.D[/P]\r
\r
- @param Operand The 32-bit operand to rotate left.\r
- @param Count The number of bits to rotate left.\r
+ D and P are decimal digit characters in the range [0-9]. The running zero in\r
+ the beginning of D and P will be ignored. /P is optional.\r
\r
- @return Operand << Count\r
+ When /P is not in the String, the function stops at the first character that is\r
+ not a valid decimal digit character after four D's are converted.\r
+\r
+ When /P is in the String, the function stops at the first character that is not\r
+ a valid decimal digit character after P is converted.\r
+\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
+\r
+ If EndPointer is not NULL and Address is translated from String, a pointer\r
+ to the character that stopped the scan is stored at the location pointed to\r
+ by EndPointer.\r
+\r
+ @param String Pointer to a Null-terminated Unicode string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Address Pointer to the converted IPv4 address.\r
+ @param PrefixLength Pointer to the converted IPv4 address prefix\r
+ length. MAX_UINT8 is returned when /P is\r
+ not in the String.\r
+\r
+ @retval RETURN_SUCCESS Address is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ @retval RETURN_UNSUPPORTED If String is not in the correct format.\r
+ If any decimal number converted from D\r
+ exceeds 255.\r
+ If the decimal number converted from P\r
+ exceeds 32.\r
+\r
+**/\r
+RETURN_STATUS\r
+EFIAPI\r
+StrToIpv4Address (\r
+ IN CONST CHAR16 *String,\r
+ OUT CHAR16 **EndPointer, OPTIONAL\r
+ OUT IPv4_ADDRESS *Address,\r
+ OUT UINT8 *PrefixLength OPTIONAL\r
+ );\r
+\r
+#define GUID_STRING_LENGTH 36\r
+\r
+/**\r
+ Convert a Null-terminated Unicode GUID string to a value of type\r
+ EFI_GUID.\r
+\r
+ This function outputs a GUID value by interpreting the contents of\r
+ the Unicode string specified by String. The format of the input\r
+ Unicode string String consists of 36 characters, as follows:\r
+\r
+ aabbccdd-eeff-gghh-iijj-kkllmmnnoopp\r
+\r
+ The pairs aa - pp are two characters in the range [0-9], [a-f] and\r
+ [A-F], with each pair representing a single byte hexadecimal value.\r
+\r
+ The mapping between String and the EFI_GUID structure is as follows:\r
+ aa Data1[24:31]\r
+ bb Data1[16:23]\r
+ cc Data1[8:15]\r
+ dd Data1[0:7]\r
+ ee Data2[8:15]\r
+ ff Data2[0:7]\r
+ gg Data3[8:15]\r
+ hh Data3[0:7]\r
+ ii Data4[0:7]\r
+ jj Data4[8:15]\r
+ kk Data4[16:23]\r
+ ll Data4[24:31]\r
+ mm Data4[32:39]\r
+ nn Data4[40:47]\r
+ oo Data4[48:55]\r
+ pp Data4[56:63]\r
+\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
+\r
+ @param String Pointer to a Null-terminated Unicode string.\r
+ @param Guid Pointer to the converted GUID.\r
+\r
+ @retval RETURN_SUCCESS Guid is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ @retval RETURN_UNSUPPORTED If String is not as the above format.\r
\r
**/\r
-UINT32\r
+RETURN_STATUS\r
EFIAPI\r
-LRotU32 (\r
- IN UINT32 Operand,\r
- IN UINTN Count\r
+StrToGuid (\r
+ IN CONST CHAR16 *String,\r
+ OUT GUID *Guid\r
);\r
\r
-\r
/**\r
- Rotates a 32-bit integer right between 0 and 31 bits, filling the high bits\r
- with the low bits that were rotated.\r
+ Convert a Null-terminated Unicode hexadecimal string to a byte array.\r
\r
- This function rotates the 32-bit value Operand to the right by Count bits.\r
- The high Count bits are fill with the low Count bits of Operand. The rotated\r
- value is returned.\r
+ This function outputs a byte array by interpreting the contents of\r
+ the Unicode string specified by String in hexadecimal format. The format of\r
+ the input Unicode string String is:\r
\r
- If Count is greater than 31, then ASSERT().\r
+ [XX]*\r
\r
- @param Operand The 32-bit operand to rotate right.\r
- @param Count The number of bits to rotate right.\r
+ X is a hexadecimal digit character in the range [0-9], [a-f] and [A-F].\r
+ The function decodes every two hexadecimal digit characters as one byte. The\r
+ decoding stops after Length of characters and outputs Buffer containing\r
+ (Length / 2) bytes.\r
\r
- @return Operand >> Count\r
+ If String is not aligned in a 16-bit boundary, then ASSERT().\r
+\r
+ @param String Pointer to a Null-terminated Unicode string.\r
+ @param Length The number of Unicode characters to decode.\r
+ @param Buffer Pointer to the converted bytes array.\r
+ @param MaxBufferSize The maximum size of Buffer.\r
\r
+ @retval RETURN_SUCCESS Buffer is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If Length is not multiple of 2.\r
+ If PcdMaximumUnicodeStringLength is not zero,\r
+ and Length is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ @retval RETURN_UNSUPPORTED If Length of characters from String contain\r
+ a character that is not valid hexadecimal\r
+ digit characters, or a Null-terminator.\r
+ @retval RETURN_BUFFER_TOO_SMALL If MaxBufferSize is less than (Length / 2).\r
**/\r
-UINT32\r
+RETURN_STATUS\r
EFIAPI\r
-RRotU32 (\r
- IN UINT32 Operand,\r
- IN UINTN Count\r
+StrHexToBytes (\r
+ IN CONST CHAR16 *String,\r
+ IN UINTN Length,\r
+ OUT UINT8 *Buffer,\r
+ IN UINTN MaxBufferSize\r
);\r
\r
\r
/**\r
- Rotates a 64-bit integer left between 0 and 63 bits, filling the low bits\r
- with the high bits that were rotated.\r
+ Convert a Null-terminated Unicode string to a Null-terminated\r
+ ASCII string.\r
\r
- This function rotates the 64-bit value Operand to the left by Count bits. The\r
- low Count bits are fill with the high Count bits of Operand. The rotated\r
- value is returned.\r
+ This function is similar to AsciiStrCpyS.\r
\r
- If Count is greater than 63, then ASSERT().\r
+ This function converts the content of the Unicode string Source\r
+ to the ASCII string Destination by copying the lower 8 bits of\r
+ each Unicode character. The function terminates the ASCII string\r
+ Destination by appending a Null-terminator character at the end.\r
\r
- @param Operand The 64-bit operand to rotate left.\r
- @param Count The number of bits to rotate left.\r
+ The caller is responsible to make sure Destination points to a buffer with size\r
+ equal or greater than ((StrLen (Source) + 1) * sizeof (CHAR8)) in bytes.\r
\r
- @return Operand << Count\r
+ If any Unicode characters in Source contain non-zero value in\r
+ the upper 8 bits, then ASSERT().\r
+\r
+ If Source is not aligned on a 16-bit boundary, then ASSERT().\r
+\r
+ If an error is returned, then the Destination is unmodified.\r
+\r
+ @param Source The pointer to a Null-terminated Unicode string.\r
+ @param Destination The pointer to a Null-terminated ASCII string.\r
+ @param DestMax The maximum number of Destination Ascii\r
+ char, including terminating null char.\r
+\r
+ @retval RETURN_SUCCESS String is converted.\r
+ @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ If PcdMaximumUnicodeStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
\r
**/\r
-UINT64\r
+RETURN_STATUS\r
EFIAPI\r
-LRotU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+UnicodeStrToAsciiStrS (\r
+ IN CONST CHAR16 *Source,\r
+ OUT CHAR8 *Destination,\r
+ IN UINTN DestMax\r
);\r
\r
-\r
/**\r
- Rotates a 64-bit integer right between 0 and 63 bits, filling the high bits\r
- with the high low bits that were rotated.\r
-\r
- This function rotates the 64-bit value Operand to the right by Count bits.\r
- The high Count bits are fill with the low Count bits of Operand. The rotated\r
- value is returned.\r
+ Convert not more than Length successive characters from a Null-terminated\r
+ Unicode string to a Null-terminated Ascii string. If no null char is copied\r
+ from Source, then Destination[Length] is always set to null.\r
\r
- If Count is greater than 63, then ASSERT().\r
+ This function converts not more than Length successive characters from the\r
+ Unicode string Source to the Ascii string Destination by copying the lower 8\r
+ bits of each Unicode character. The function terminates the Ascii string\r
+ Destination by appending a Null-terminator character at the end.\r
\r
- @param Operand The 64-bit operand to rotate right.\r
- @param Count The number of bits to rotate right.\r
+ The caller is responsible to make sure Destination points to a buffer with size\r
+ equal or greater than ((StrLen (Source) + 1) * sizeof (CHAR8)) in bytes.\r
\r
- @return Operand >> Count\r
+ If any Unicode characters in Source contain non-zero value in the upper 8\r
+ bits, then ASSERT().\r
+ If Source is not aligned on a 16-bit boundary, then ASSERT().\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-RRotU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+ If an error is returned, then the Destination is unmodified.\r
+\r
+ @param Source The pointer to a Null-terminated Unicode string.\r
+ @param Length The maximum number of Unicode characters to\r
+ convert.\r
+ @param Destination The pointer to a Null-terminated Ascii string.\r
+ @param DestMax The maximum number of Destination Ascii\r
+ char, including terminating null char.\r
+ @param DestinationLength The number of Unicode characters converted.\r
+\r
+ @retval RETURN_SUCCESS String is converted.\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If DestinationLength is NULL.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and Length or DestMax is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ If PcdMaximumUnicodeStringLength is not\r
+ zero, and Length or DestMax is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than\r
+ MIN(StrLen(Source), Length).\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
+\r
+**/\r
+RETURN_STATUS\r
+EFIAPI\r
+UnicodeStrnToAsciiStrS (\r
+ IN CONST CHAR16 *Source,\r
+ IN UINTN Length,\r
+ OUT CHAR8 *Destination,\r
+ IN UINTN DestMax,\r
+ OUT UINTN *DestinationLength\r
);\r
\r
\r
/**\r
- Returns the bit position of the lowest bit set in a 32-bit value.\r
+ Returns the length of a Null-terminated ASCII string.\r
\r
- This function computes the bit position of the lowest bit set in the 32-bit\r
- value specified by Operand. If Operand is zero, then -1 is returned.\r
- Otherwise, a value between 0 and 31 is returned.\r
+ This function returns the number of ASCII characters in the Null-terminated\r
+ ASCII string specified by String.\r
\r
- @param Operand The 32-bit operand to evaluate.\r
+ If Length > 0 and Destination is NULL, then ASSERT().\r
+ If Length > 0 and Source is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero and String contains more than\r
+ PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
+ then ASSERT().\r
\r
- @retval 0..31 The lowest bit set in Operand was found.\r
- @retval -1 Operand is zero.\r
+ @param String The pointer to a Null-terminated ASCII string.\r
+\r
+ @return The length of String.\r
\r
**/\r
-INTN\r
+UINTN\r
EFIAPI\r
-LowBitSet32 (\r
- IN UINT32 Operand\r
+AsciiStrLen (\r
+ IN CONST CHAR8 *String\r
);\r
\r
\r
/**\r
- Returns the bit position of the lowest bit set in a 64-bit value.\r
+ Returns the size of a Null-terminated ASCII string in bytes, including the\r
+ Null terminator.\r
\r
- This function computes the bit position of the lowest bit set in the 64-bit\r
- value specified by Operand. If Operand is zero, then -1 is returned.\r
- Otherwise, a value between 0 and 63 is returned.\r
+ This function returns the size, in bytes, of the Null-terminated ASCII string\r
+ specified by String.\r
\r
- @param Operand The 64-bit operand to evaluate.\r
+ If String is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero and String contains more than\r
+ PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
+ then ASSERT().\r
\r
- @retval 0..63 The lowest bit set in Operand was found.\r
- @retval -1 Operand is zero.\r
+ @param String The pointer to a Null-terminated ASCII string.\r
\r
+ @return The size of String.\r
\r
**/\r
-INTN\r
+UINTN\r
EFIAPI\r
-LowBitSet64 (\r
- IN UINT64 Operand\r
+AsciiStrSize (\r
+ IN CONST CHAR8 *String\r
);\r
\r
\r
/**\r
- Returns the bit position of the highest bit set in a 32-bit value. Equivalent\r
- to log2(x).\r
+ Compares two Null-terminated ASCII strings, and returns the difference\r
+ between the first mismatched ASCII characters.\r
\r
- This function computes the bit position of the highest bit set in the 32-bit\r
- value specified by Operand. If Operand is zero, then -1 is returned.\r
- Otherwise, a value between 0 and 31 is returned.\r
+ This function compares the Null-terminated ASCII string FirstString to the\r
+ Null-terminated ASCII string SecondString. If FirstString is identical to\r
+ SecondString, then 0 is returned. Otherwise, the value returned is the first\r
+ mismatched ASCII character in SecondString subtracted from the first\r
+ mismatched ASCII character in FirstString.\r
\r
- @param Operand The 32-bit operand to evaluate.\r
+ If FirstString is NULL, then ASSERT().\r
+ If SecondString is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r
+ PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
+ then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r
+ than PcdMaximumAsciiStringLength ASCII characters not including the\r
+ Null-terminator, then ASSERT().\r
\r
- @retval 0..31 Position of the highest bit set in Operand if found.\r
- @retval -1 Operand is zero.\r
+ @param FirstString The pointer to a Null-terminated ASCII string.\r
+ @param SecondString The pointer to a Null-terminated ASCII string.\r
+\r
+ @retval ==0 FirstString is identical to SecondString.\r
+ @retval !=0 FirstString is not identical to SecondString.\r
\r
**/\r
INTN\r
EFIAPI\r
-HighBitSet32 (\r
- IN UINT32 Operand\r
+AsciiStrCmp (\r
+ IN CONST CHAR8 *FirstString,\r
+ IN CONST CHAR8 *SecondString\r
);\r
\r
\r
/**\r
- Returns the bit position of the highest bit set in a 64-bit value. Equivalent\r
- to log2(x).\r
+ Performs a case insensitive comparison of two Null-terminated ASCII strings,\r
+ and returns the difference between the first mismatched ASCII characters.\r
\r
- This function computes the bit position of the highest bit set in the 64-bit\r
- value specified by Operand. If Operand is zero, then -1 is returned.\r
- Otherwise, a value between 0 and 63 is returned.\r
+ This function performs a case insensitive comparison of the Null-terminated\r
+ ASCII string FirstString to the Null-terminated ASCII string SecondString. If\r
+ FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r
+ value returned is the first mismatched lower case ASCII character in\r
+ SecondString subtracted from the first mismatched lower case ASCII character\r
+ in FirstString.\r
\r
- @param Operand The 64-bit operand to evaluate.\r
+ If FirstString is NULL, then ASSERT().\r
+ If SecondString is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r
+ PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
+ then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r
+ than PcdMaximumAsciiStringLength ASCII characters not including the\r
+ Null-terminator, then ASSERT().\r
\r
- @retval 0..63 Position of the highest bit set in Operand if found.\r
- @retval -1 Operand is zero.\r
+ @param FirstString The pointer to a Null-terminated ASCII string.\r
+ @param SecondString The pointer to a Null-terminated ASCII string.\r
+\r
+ @retval ==0 FirstString is identical to SecondString using case insensitive\r
+ comparisons.\r
+ @retval !=0 FirstString is not identical to SecondString using case\r
+ insensitive comparisons.\r
\r
**/\r
INTN\r
EFIAPI\r
-HighBitSet64 (\r
- IN UINT64 Operand\r
+AsciiStriCmp (\r
+ IN CONST CHAR8 *FirstString,\r
+ IN CONST CHAR8 *SecondString\r
);\r
\r
\r
/**\r
- Returns the value of the highest bit set in a 32-bit value. Equivalent to\r
- 1 << log2(x).\r
+ Compares two Null-terminated ASCII strings with maximum lengths, and returns\r
+ the difference between the first mismatched ASCII characters.\r
\r
- This function computes the value of the highest bit set in the 32-bit value\r
- specified by Operand. If Operand is zero, then zero is returned.\r
+ This function compares the Null-terminated ASCII string FirstString to the\r
+ Null-terminated ASCII string SecondString. At most, Length ASCII characters\r
+ will be compared. If Length is 0, then 0 is returned. If FirstString is\r
+ identical to SecondString, then 0 is returned. Otherwise, the value returned\r
+ is the first mismatched ASCII character in SecondString subtracted from the\r
+ first mismatched ASCII character in FirstString.\r
+\r
+ If Length > 0 and FirstString is NULL, then ASSERT().\r
+ If Length > 0 and SecondString is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero, and Length is greater than\r
+ PcdMaximumAsciiStringLength, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero, and FirstString contains more than\r
+ PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
+ then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero, and SecondString contains more than\r
+ PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r
+ then ASSERT().\r
\r
- @param Operand The 32-bit operand to evaluate.\r
+ @param FirstString The pointer to a Null-terminated ASCII string.\r
+ @param SecondString The pointer to a Null-terminated ASCII string.\r
+ @param Length The maximum number of ASCII characters for compare.\r
\r
- @return 1 << HighBitSet32(Operand)\r
- @retval 0 Operand is zero.\r
+ @retval ==0 FirstString is identical to SecondString.\r
+ @retval !=0 FirstString is not identical to SecondString.\r
\r
**/\r
-UINT32\r
+INTN\r
EFIAPI\r
-GetPowerOfTwo32 (\r
- IN UINT32 Operand\r
+AsciiStrnCmp (\r
+ IN CONST CHAR8 *FirstString,\r
+ IN CONST CHAR8 *SecondString,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Returns the value of the highest bit set in a 64-bit value. Equivalent to\r
- 1 << log2(x).\r
+ Returns the first occurrence of a Null-terminated ASCII sub-string\r
+ in a Null-terminated ASCII string.\r
\r
- This function computes the value of the highest bit set in the 64-bit value\r
- specified by Operand. If Operand is zero, then zero is returned.\r
+ This function scans the contents of the ASCII string specified by String\r
+ and returns the first occurrence of SearchString. If SearchString is not\r
+ found in String, then NULL is returned. If the length of SearchString is zero,\r
+ then String is returned.\r
\r
- @param Operand The 64-bit operand to evaluate.\r
+ If String is NULL, then ASSERT().\r
+ If SearchString is NULL, then ASSERT().\r
\r
- @return 1 << HighBitSet64(Operand)\r
- @retval 0 Operand is zero.\r
+ If PcdMaximumAsciiStringLength is not zero, and SearchString or\r
+ String contains more than PcdMaximumAsciiStringLength Unicode characters\r
+ not including the Null-terminator, then ASSERT().\r
+\r
+ @param String The pointer to a Null-terminated ASCII string.\r
+ @param SearchString The pointer to a Null-terminated ASCII string to search for.\r
+\r
+ @retval NULL If the SearchString does not appear in String.\r
+ @retval others If there is a match return the first occurrence of SearchingString.\r
+ If the length of SearchString is zero,return String.\r
\r
**/\r
-UINT64\r
+CHAR8 *\r
EFIAPI\r
-GetPowerOfTwo64 (\r
- IN UINT64 Operand\r
+AsciiStrStr (\r
+ IN CONST CHAR8 *String,\r
+ IN CONST CHAR8 *SearchString\r
);\r
\r
\r
/**\r
- Switches the endianess of a 16-bit integer.\r
-\r
- This function swaps the bytes in a 16-bit unsigned value to switch the value\r
- from little endian to big endian or vice versa. The byte swapped value is\r
- returned.\r
-\r
- @param Value A 16-bit unsigned value.\r
-\r
- @return The byte swapped Value.\r
+ Convert a Null-terminated ASCII decimal string to a value of type\r
+ UINTN.\r
\r
-**/\r
-UINT16\r
-EFIAPI\r
-SwapBytes16 (\r
- IN UINT16 Value\r
- );\r
+ This function returns a value of type UINTN by interpreting the contents\r
+ of the ASCII string String as a decimal number. The format of the input\r
+ ASCII string String is:\r
\r
+ [spaces] [decimal digits].\r
\r
-/**\r
- Switches the endianess of a 32-bit integer.\r
+ The valid decimal digit character is in the range [0-9]. The function will\r
+ ignore the pad space, which includes spaces or tab characters, before the digits.\r
+ The running zero in the beginning of [decimal digits] will be ignored. Then, the\r
+ function stops at the first character that is a not a valid decimal character or\r
+ Null-terminator, whichever on comes first.\r
\r
- This function swaps the bytes in a 32-bit unsigned value to switch the value\r
- from little endian to big endian or vice versa. The byte swapped value is\r
- returned.\r
+ If String has only pad spaces, then 0 is returned.\r
+ If String has no pad spaces or valid decimal digits, then 0 is returned.\r
+ If the number represented by String overflows according to the range defined by\r
+ UINTN, then MAX_UINTN is returned.\r
+ If String is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
+ PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
+ then ASSERT().\r
\r
- @param Value A 32-bit unsigned value.\r
+ @param String The pointer to a Null-terminated ASCII string.\r
\r
- @return The byte swapped Value.\r
+ @retval The value translated from String.\r
\r
**/\r
-UINT32\r
+UINTN\r
EFIAPI\r
-SwapBytes32 (\r
- IN UINT32 Value\r
+AsciiStrDecimalToUintn (\r
+ IN CONST CHAR8 *String\r
);\r
\r
\r
/**\r
- Switches the endianess of a 64-bit integer.\r
+ Convert a Null-terminated ASCII decimal string to a value of type\r
+ UINT64.\r
\r
- This function swaps the bytes in a 64-bit unsigned value to switch the value\r
- from little endian to big endian or vice versa. The byte swapped value is\r
- returned.\r
+ This function returns a value of type UINT64 by interpreting the contents\r
+ of the ASCII string String as a decimal number. The format of the input\r
+ ASCII string String is:\r
\r
- @param Value A 64-bit unsigned value.\r
+ [spaces] [decimal digits].\r
\r
- @return The byte swapped Value.\r
+ The valid decimal digit character is in the range [0-9]. The function will\r
+ ignore the pad space, which includes spaces or tab characters, before the digits.\r
+ The running zero in the beginning of [decimal digits] will be ignored. Then, the\r
+ function stops at the first character that is a not a valid decimal character or\r
+ Null-terminator, whichever on comes first.\r
+\r
+ If String has only pad spaces, then 0 is returned.\r
+ If String has no pad spaces or valid decimal digits, then 0 is returned.\r
+ If the number represented by String overflows according to the range defined by\r
+ UINT64, then MAX_UINT64 is returned.\r
+ If String is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero, and String contains more than\r
+ PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r
+ then ASSERT().\r
+\r
+ @param String The pointer to a Null-terminated ASCII string.\r
+\r
+ @retval Value translated from String.\r
\r
**/\r
UINT64\r
EFIAPI\r
-SwapBytes64 (\r
- IN UINT64 Value\r
+AsciiStrDecimalToUint64 (\r
+ IN CONST CHAR8 *String\r
);\r
\r
\r
/**\r
- Multiples a 64-bit unsigned integer by a 32-bit unsigned integer and\r
- generates a 64-bit unsigned result.\r
+ Convert a Null-terminated ASCII hexadecimal string to a value of type UINTN.\r
\r
- This function multiples the 64-bit unsigned value Multiplicand by the 32-bit\r
- unsigned value Multiplier and generates a 64-bit unsigned result. This 64-\r
- bit unsigned result is returned.\r
+ This function returns a value of type UINTN by interpreting the contents of\r
+ the ASCII string String as a hexadecimal number. The format of the input ASCII\r
+ string String is:\r
\r
- @param Multiplicand A 64-bit unsigned value.\r
- @param Multiplier A 32-bit unsigned value.\r
+ [spaces][zeros][x][hexadecimal digits].\r
\r
- @return Multiplicand * Multiplier\r
+ The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
+ The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x"\r
+ appears in the input string, it must be prefixed with at least one 0. The function\r
+ will ignore the pad space, which includes spaces or tab characters, before [zeros],\r
+ [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits]\r
+ will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal\r
+ digit. Then, the function stops at the first character that is a not a valid\r
+ hexadecimal character or Null-terminator, whichever on comes first.\r
+\r
+ If String has only pad spaces, then 0 is returned.\r
+ If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r
+ 0 is returned.\r
+\r
+ If the number represented by String overflows according to the range defined by UINTN,\r
+ then MAX_UINTN is returned.\r
+ If String is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and String contains more than PcdMaximumAsciiStringLength ASCII characters not including\r
+ the Null-terminator, then ASSERT().\r
+\r
+ @param String The pointer to a Null-terminated ASCII string.\r
+\r
+ @retval Value translated from String.\r
\r
**/\r
-UINT64\r
+UINTN\r
EFIAPI\r
-MultU64x32 (\r
- IN UINT64 Multiplicand,\r
- IN UINT32 Multiplier\r
+AsciiStrHexToUintn (\r
+ IN CONST CHAR8 *String\r
);\r
\r
\r
/**\r
- Multiples a 64-bit unsigned integer by a 64-bit unsigned integer and\r
- generates a 64-bit unsigned result.\r
+ Convert a Null-terminated ASCII hexadecimal string to a value of type UINT64.\r
\r
- This function multiples the 64-bit unsigned value Multiplicand by the 64-bit\r
- unsigned value Multiplier and generates a 64-bit unsigned result. This 64-\r
- bit unsigned result is returned.\r
+ This function returns a value of type UINT64 by interpreting the contents of\r
+ the ASCII string String as a hexadecimal number. The format of the input ASCII\r
+ string String is:\r
\r
- @param Multiplicand A 64-bit unsigned value.\r
- @param Multiplier A 64-bit unsigned value.\r
+ [spaces][zeros][x][hexadecimal digits].\r
\r
- @return Multiplicand * Multiplier\r
+ The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r
+ The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x"\r
+ appears in the input string, it must be prefixed with at least one 0. The function\r
+ will ignore the pad space, which includes spaces or tab characters, before [zeros],\r
+ [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits]\r
+ will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal\r
+ digit. Then, the function stops at the first character that is a not a valid\r
+ hexadecimal character or Null-terminator, whichever on comes first.\r
+\r
+ If String has only pad spaces, then 0 is returned.\r
+ If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r
+ 0 is returned.\r
+\r
+ If the number represented by String overflows according to the range defined by UINT64,\r
+ then MAX_UINT64 is returned.\r
+ If String is NULL, then ASSERT().\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and String contains more than PcdMaximumAsciiStringLength ASCII characters not including\r
+ the Null-terminator, then ASSERT().\r
+\r
+ @param String The pointer to a Null-terminated ASCII string.\r
+\r
+ @retval Value translated from String.\r
\r
**/\r
UINT64\r
EFIAPI\r
-MultU64x64 (\r
- IN UINT64 Multiplicand,\r
- IN UINT64 Multiplier\r
+AsciiStrHexToUint64 (\r
+ IN CONST CHAR8 *String\r
);\r
\r
-\r
/**\r
- Multiples a 64-bit signed integer by a 64-bit signed integer and generates a\r
- 64-bit signed result.\r
-\r
- This function multiples the 64-bit signed value Multiplicand by the 64-bit\r
- signed value Multiplier and generates a 64-bit signed result. This 64-bit\r
- signed result is returned.\r
+ Convert a Null-terminated ASCII string to IPv6 address and prefix length.\r
\r
- @param Multiplicand A 64-bit signed value.\r
- @param Multiplier A 64-bit signed value.\r
+ This function outputs a value of type IPv6_ADDRESS and may output a value\r
+ of type UINT8 by interpreting the contents of the ASCII string specified\r
+ by String. The format of the input ASCII string String is as follows:\r
\r
- @return Multiplicand * Multiplier\r
+ X:X:X:X:X:X:X:X[/P]\r
\r
-**/\r
-INT64\r
-EFIAPI\r
-MultS64x64 (\r
- IN INT64 Multiplicand,\r
- IN INT64 Multiplier\r
- );\r
+ X contains one to four hexadecimal digit characters in the range [0-9], [a-f] and\r
+ [A-F]. X is converted to a value of type UINT16, whose low byte is stored in low\r
+ memory address and high byte is stored in high memory address. P contains decimal\r
+ digit characters in the range [0-9]. The running zero in the beginning of P will\r
+ be ignored. /P is optional.\r
\r
+ When /P is not in the String, the function stops at the first character that is\r
+ not a valid hexadecimal digit character after eight X's are converted.\r
\r
-/**\r
- Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
- a 64-bit unsigned result.\r
+ When /P is in the String, the function stops at the first character that is not\r
+ a valid decimal digit character after P is converted.\r
\r
- This function divides the 64-bit unsigned value Dividend by the 32-bit\r
- unsigned value Divisor and generates a 64-bit unsigned quotient. This\r
- function returns the 64-bit unsigned quotient.\r
+ "::" can be used to compress one or more groups of X when X contains only 0.\r
+ The "::" can only appear once in the String.\r
\r
- If Divisor is 0, then ASSERT().\r
+ If EndPointer is not NULL and Address is translated from String, a pointer\r
+ to the character that stopped the scan is stored at the location pointed to\r
+ by EndPointer.\r
\r
- @param Dividend A 64-bit unsigned value.\r
- @param Divisor A 32-bit unsigned value.\r
+ @param String Pointer to a Null-terminated ASCII string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Address Pointer to the converted IPv6 address.\r
+ @param PrefixLength Pointer to the converted IPv6 address prefix\r
+ length. MAX_UINT8 is returned when /P is\r
+ not in the String.\r
\r
- @return Dividend / Divisor\r
+ @retval RETURN_SUCCESS Address is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ @retval RETURN_UNSUPPORTED If X contains more than four hexadecimal\r
+ digit characters.\r
+ If String contains "::" and number of X\r
+ is not less than 8.\r
+ If P starts with character that is not a\r
+ valid decimal digit character.\r
+ If the decimal number converted from P\r
+ exceeds 128.\r
\r
**/\r
-UINT64\r
+RETURN_STATUS\r
EFIAPI\r
-DivU64x32 (\r
- IN UINT64 Dividend,\r
- IN UINT32 Divisor\r
+AsciiStrToIpv6Address (\r
+ IN CONST CHAR8 *String,\r
+ OUT CHAR8 **EndPointer, OPTIONAL\r
+ OUT IPv6_ADDRESS *Address,\r
+ OUT UINT8 *PrefixLength OPTIONAL\r
);\r
\r
-\r
/**\r
- Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
- a 32-bit unsigned remainder.\r
-\r
- This function divides the 64-bit unsigned value Dividend by the 32-bit\r
- unsigned value Divisor and generates a 32-bit remainder. This function\r
- returns the 32-bit unsigned remainder.\r
-\r
- If Divisor is 0, then ASSERT().\r
-\r
- @param Dividend A 64-bit unsigned value.\r
- @param Divisor A 32-bit unsigned value.\r
+ Convert a Null-terminated ASCII string to IPv4 address and prefix length.\r
\r
- @return Dividend % Divisor\r
+ This function outputs a value of type IPv4_ADDRESS and may output a value\r
+ of type UINT8 by interpreting the contents of the ASCII string specified\r
+ by String. The format of the input ASCII string String is as follows:\r
\r
-**/\r
-UINT32\r
-EFIAPI\r
-ModU64x32 (\r
- IN UINT64 Dividend,\r
- IN UINT32 Divisor\r
- );\r
+ D.D.D.D[/P]\r
\r
+ D and P are decimal digit characters in the range [0-9]. The running zero in\r
+ the beginning of D and P will be ignored. /P is optional.\r
\r
-/**\r
- Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
- a 64-bit unsigned result and an optional 32-bit unsigned remainder.\r
+ When /P is not in the String, the function stops at the first character that is\r
+ not a valid decimal digit character after four D's are converted.\r
\r
- This function divides the 64-bit unsigned value Dividend by the 32-bit\r
- unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder\r
- is not NULL, then the 32-bit unsigned remainder is returned in Remainder.\r
- This function returns the 64-bit unsigned quotient.\r
+ When /P is in the String, the function stops at the first character that is not\r
+ a valid decimal digit character after P is converted.\r
\r
- If Divisor is 0, then ASSERT().\r
+ If EndPointer is not NULL and Address is translated from String, a pointer\r
+ to the character that stopped the scan is stored at the location pointed to\r
+ by EndPointer.\r
\r
- @param Dividend A 64-bit unsigned value.\r
- @param Divisor A 32-bit unsigned value.\r
- @param Remainder A pointer to a 32-bit unsigned value. This parameter is\r
- optional and may be NULL.\r
+ @param String Pointer to a Null-terminated ASCII string.\r
+ @param EndPointer Pointer to character that stops scan.\r
+ @param Address Pointer to the converted IPv4 address.\r
+ @param PrefixLength Pointer to the converted IPv4 address prefix\r
+ length. MAX_UINT8 is returned when /P is\r
+ not in the String.\r
\r
- @return Dividend / Divisor\r
+ @retval RETURN_SUCCESS Address is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ @retval RETURN_UNSUPPORTED If String is not in the correct format.\r
+ If any decimal number converted from D\r
+ exceeds 255.\r
+ If the decimal number converted from P\r
+ exceeds 32.\r
\r
**/\r
-UINT64\r
+RETURN_STATUS\r
EFIAPI\r
-DivU64x32Remainder (\r
- IN UINT64 Dividend,\r
- IN UINT32 Divisor,\r
- OUT UINT32 *Remainder OPTIONAL\r
+AsciiStrToIpv4Address (\r
+ IN CONST CHAR8 *String,\r
+ OUT CHAR8 **EndPointer, OPTIONAL\r
+ OUT IPv4_ADDRESS *Address,\r
+ OUT UINT8 *PrefixLength OPTIONAL\r
);\r
\r
-\r
/**\r
- Divides a 64-bit unsigned integer by a 64-bit unsigned integer and generates\r
- a 64-bit unsigned result and an optional 64-bit unsigned remainder.\r
+ Convert a Null-terminated ASCII GUID string to a value of type\r
+ EFI_GUID.\r
\r
- This function divides the 64-bit unsigned value Dividend by the 64-bit\r
- unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder\r
- is not NULL, then the 64-bit unsigned remainder is returned in Remainder.\r
- This function returns the 64-bit unsigned quotient.\r
+ This function outputs a GUID value by interpreting the contents of\r
+ the ASCII string specified by String. The format of the input\r
+ ASCII string String consists of 36 characters, as follows:\r
\r
- If Divisor is 0, then ASSERT().\r
+ aabbccdd-eeff-gghh-iijj-kkllmmnnoopp\r
\r
- @param Dividend A 64-bit unsigned value.\r
- @param Divisor A 64-bit unsigned value.\r
- @param Remainder A pointer to a 64-bit unsigned value. This parameter is\r
- optional and may be NULL.\r
+ The pairs aa - pp are two characters in the range [0-9], [a-f] and\r
+ [A-F], with each pair representing a single byte hexadecimal value.\r
+\r
+ The mapping between String and the EFI_GUID structure is as follows:\r
+ aa Data1[24:31]\r
+ bb Data1[16:23]\r
+ cc Data1[8:15]\r
+ dd Data1[0:7]\r
+ ee Data2[8:15]\r
+ ff Data2[0:7]\r
+ gg Data3[8:15]\r
+ hh Data3[0:7]\r
+ ii Data4[0:7]\r
+ jj Data4[8:15]\r
+ kk Data4[16:23]\r
+ ll Data4[24:31]\r
+ mm Data4[32:39]\r
+ nn Data4[40:47]\r
+ oo Data4[48:55]\r
+ pp Data4[56:63]\r
+\r
+ @param String Pointer to a Null-terminated ASCII string.\r
+ @param Guid Pointer to the converted GUID.\r
\r
- @return Dividend / Divisor\r
+ @retval RETURN_SUCCESS Guid is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ @retval RETURN_UNSUPPORTED If String is not as the above format.\r
\r
**/\r
-UINT64\r
+RETURN_STATUS\r
EFIAPI\r
-DivU64x64Remainder (\r
- IN UINT64 Dividend,\r
- IN UINT64 Divisor,\r
- OUT UINT64 *Remainder OPTIONAL\r
+AsciiStrToGuid (\r
+ IN CONST CHAR8 *String,\r
+ OUT GUID *Guid\r
);\r
\r
-\r
/**\r
- Divides a 64-bit signed integer by a 64-bit signed integer and generates a\r
- 64-bit signed result and a optional 64-bit signed remainder.\r
+ Convert a Null-terminated ASCII hexadecimal string to a byte array.\r
\r
- This function divides the 64-bit signed value Dividend by the 64-bit signed\r
- value Divisor and generates a 64-bit signed quotient. If Remainder is not\r
- NULL, then the 64-bit signed remainder is returned in Remainder. This\r
- function returns the 64-bit signed quotient.\r
+ This function outputs a byte array by interpreting the contents of\r
+ the ASCII string specified by String in hexadecimal format. The format of\r
+ the input ASCII string String is:\r
\r
- It is the caller's responsibility to not call this function with a Divisor of 0.\r
- If Divisor is 0, then the quotient and remainder should be assumed to be \r
- the largest negative integer.\r
-\r
- If Divisor is 0, then ASSERT().\r
+ [XX]*\r
\r
- @param Dividend A 64-bit signed value.\r
- @param Divisor A 64-bit signed value.\r
- @param Remainder A pointer to a 64-bit signed value. This parameter is\r
- optional and may be NULL.\r
+ X is a hexadecimal digit character in the range [0-9], [a-f] and [A-F].\r
+ The function decodes every two hexadecimal digit characters as one byte. The\r
+ decoding stops after Length of characters and outputs Buffer containing\r
+ (Length / 2) bytes.\r
\r
- @return Dividend / Divisor\r
+ @param String Pointer to a Null-terminated ASCII string.\r
+ @param Length The number of ASCII characters to decode.\r
+ @param Buffer Pointer to the converted bytes array.\r
+ @param MaxBufferSize The maximum size of Buffer.\r
\r
+ @retval RETURN_SUCCESS Buffer is translated from String.\r
+ @retval RETURN_INVALID_PARAMETER If String is NULL.\r
+ If Data is NULL.\r
+ If Length is not multiple of 2.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and Length is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ @retval RETURN_UNSUPPORTED If Length of characters from String contain\r
+ a character that is not valid hexadecimal\r
+ digit characters, or a Null-terminator.\r
+ @retval RETURN_BUFFER_TOO_SMALL If MaxBufferSize is less than (Length / 2).\r
**/\r
-INT64\r
+RETURN_STATUS\r
EFIAPI\r
-DivS64x64Remainder (\r
- IN INT64 Dividend,\r
- IN INT64 Divisor,\r
- OUT INT64 *Remainder OPTIONAL\r
+AsciiStrHexToBytes (\r
+ IN CONST CHAR8 *String,\r
+ IN UINTN Length,\r
+ OUT UINT8 *Buffer,\r
+ IN UINTN MaxBufferSize\r
);\r
\r
\r
/**\r
- Reads a 16-bit value from memory that may be unaligned.\r
+ Convert one Null-terminated ASCII string to a Null-terminated\r
+ Unicode string.\r
\r
- This function returns the 16-bit value pointed to by Buffer. The function\r
- guarantees that the read operation does not produce an alignment fault.\r
+ This function is similar to StrCpyS.\r
\r
- If the Buffer is NULL, then ASSERT().\r
+ This function converts the contents of the ASCII string Source to the Unicode\r
+ string Destination. The function terminates the Unicode string Destination by\r
+ appending a Null-terminator character at the end.\r
\r
- @param Buffer Pointer to a 16-bit value that may be unaligned.\r
+ The caller is responsible to make sure Destination points to a buffer with size\r
+ equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes.\r
\r
- @return The 16-bit value read from Buffer.\r
+ If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
+\r
+ If an error is returned, then the Destination is unmodified.\r
+\r
+ @param Source The pointer to a Null-terminated ASCII string.\r
+ @param Destination The pointer to a Null-terminated Unicode string.\r
+ @param DestMax The maximum number of Destination Unicode\r
+ char, including terminating null char.\r
+\r
+ @retval RETURN_SUCCESS String is converted.\r
+ @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If PcdMaximumUnicodeStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and DestMax is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
\r
**/\r
-UINT16\r
+RETURN_STATUS\r
EFIAPI\r
-ReadUnaligned16 (\r
- IN CONST UINT16 *Buffer\r
+AsciiStrToUnicodeStrS (\r
+ IN CONST CHAR8 *Source,\r
+ OUT CHAR16 *Destination,\r
+ IN UINTN DestMax\r
);\r
\r
-\r
/**\r
- Writes a 16-bit value to memory that may be unaligned.\r
+ Convert not more than Length successive characters from a Null-terminated\r
+ Ascii string to a Null-terminated Unicode string. If no null char is copied\r
+ from Source, then Destination[Length] is always set to null.\r
\r
- This function writes the 16-bit value specified by Value to Buffer. Value is\r
- returned. The function guarantees that the write operation does not produce\r
- an alignment fault.\r
+ This function converts not more than Length successive characters from the\r
+ Ascii string Source to the Unicode string Destination. The function\r
+ terminates the Unicode string Destination by appending a Null-terminator\r
+ character at the end.\r
\r
- If the Buffer is NULL, then ASSERT().\r
+ The caller is responsible to make sure Destination points to a buffer with\r
+ size not smaller than\r
+ ((MIN(AsciiStrLen(Source), Length) + 1) * sizeof (CHAR8)) in bytes.\r
\r
- @param Buffer Pointer to a 16-bit value that may be unaligned.\r
- @param Value 16-bit value to write to Buffer.\r
+ If Destination is not aligned on a 16-bit boundary, then ASSERT().\r
\r
- @return The 16-bit value to write to Buffer.\r
+ If an error is returned, then Destination and DestinationLength are\r
+ unmodified.\r
+\r
+ @param Source The pointer to a Null-terminated Ascii string.\r
+ @param Length The maximum number of Ascii characters to convert.\r
+ @param Destination The pointer to a Null-terminated Unicode string.\r
+ @param DestMax The maximum number of Destination Unicode char,\r
+ including terminating null char.\r
+ @param DestinationLength The number of Ascii characters converted.\r
+\r
+ @retval RETURN_SUCCESS String is converted.\r
+ @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r
+ If Source is NULL.\r
+ If DestinationLength is NULL.\r
+ If PcdMaximumUnicodeStringLength is not\r
+ zero, and Length or DestMax is greater than\r
+ PcdMaximumUnicodeStringLength.\r
+ If PcdMaximumAsciiStringLength is not zero,\r
+ and Length or DestMax is greater than\r
+ PcdMaximumAsciiStringLength.\r
+ If DestMax is 0.\r
+ @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than\r
+ MIN(AsciiStrLen(Source), Length).\r
+ @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r
+\r
+**/\r
+RETURN_STATUS\r
+EFIAPI\r
+AsciiStrnToUnicodeStrS (\r
+ IN CONST CHAR8 *Source,\r
+ IN UINTN Length,\r
+ OUT CHAR16 *Destination,\r
+ IN UINTN DestMax,\r
+ OUT UINTN *DestinationLength\r
+ );\r
+\r
+/**\r
+ Convert a Unicode character to upper case only if\r
+ it maps to a valid small-case ASCII character.\r
+\r
+ This internal function only deal with Unicode character\r
+ which maps to a valid small-case ASCII character, i.e.\r
+ L'a' to L'z'. For other Unicode character, the input character\r
+ is returned directly.\r
+\r
+ @param Char The character to convert.\r
+\r
+ @retval LowerCharacter If the Char is with range L'a' to L'z'.\r
+ @retval Unchanged Otherwise.\r
\r
**/\r
-UINT16\r
+CHAR16\r
EFIAPI\r
-WriteUnaligned16 (\r
- OUT UINT16 *Buffer,\r
- IN UINT16 Value\r
+CharToUpper (\r
+ IN CHAR16 Char\r
);\r
\r
-\r
/**\r
- Reads a 24-bit value from memory that may be unaligned.\r
+ Converts a lowercase Ascii character to upper one.\r
\r
- This function returns the 24-bit value pointed to by Buffer. The function\r
- guarantees that the read operation does not produce an alignment fault.\r
+ If Chr is lowercase Ascii character, then converts it to upper one.\r
\r
- If the Buffer is NULL, then ASSERT().\r
+ If Value >= 0xA0, then ASSERT().\r
+ If (Value & 0x0F) >= 0x0A, then ASSERT().\r
\r
- @param Buffer Pointer to a 24-bit value that may be unaligned.\r
+ @param Chr one Ascii character\r
\r
- @return The 24-bit value read from Buffer.\r
+ @return The uppercase value of Ascii character\r
\r
**/\r
-UINT32\r
+CHAR8\r
EFIAPI\r
-ReadUnaligned24 (\r
- IN CONST UINT32 *Buffer\r
+AsciiCharToUpper (\r
+ IN CHAR8 Chr\r
);\r
\r
-\r
/**\r
- Writes a 24-bit value to memory that may be unaligned.\r
-\r
- This function writes the 24-bit value specified by Value to Buffer. Value is\r
- returned. The function guarantees that the write operation does not produce\r
- an alignment fault.\r
+ Convert binary data to a Base64 encoded ascii string based on RFC4648.\r
\r
- If the Buffer is NULL, then ASSERT().\r
+ Produce a Null-terminated Ascii string in the output buffer specified by Destination and DestinationSize.\r
+ The Ascii string is produced by converting the data string specified by Source and SourceLength.\r
\r
- @param Buffer Pointer to a 24-bit value that may be unaligned.\r
- @param Value 24-bit value to write to Buffer.\r
+ @param Source Input UINT8 data\r
+ @param SourceLength Number of UINT8 bytes of data\r
+ @param Destination Pointer to output string buffer\r
+ @param DestinationSize Size of ascii buffer. Set to 0 to get the size needed.\r
+ Caller is responsible for passing in buffer of DestinationSize\r
\r
- @return The 24-bit value to write to Buffer.\r
+ @retval RETURN_SUCCESS When ascii buffer is filled in.\r
+ @retval RETURN_INVALID_PARAMETER If Source is NULL or DestinationSize is NULL.\r
+ @retval RETURN_INVALID_PARAMETER If SourceLength or DestinationSize is bigger than (MAX_ADDRESS - (UINTN)Destination).\r
+ @retval RETURN_BUFFER_TOO_SMALL If SourceLength is 0 and DestinationSize is <1.\r
+ @retval RETURN_BUFFER_TOO_SMALL If Destination is NULL or DestinationSize is smaller than required buffersize.\r
\r
**/\r
-UINT32\r
+RETURN_STATUS\r
EFIAPI\r
-WriteUnaligned24 (\r
- OUT UINT32 *Buffer,\r
- IN UINT32 Value\r
+Base64Encode (\r
+ IN CONST UINT8 *Source,\r
+ IN UINTN SourceLength,\r
+ OUT CHAR8 *Destination OPTIONAL,\r
+ IN OUT UINTN *DestinationSize\r
);\r
\r
-\r
/**\r
- Reads a 32-bit value from memory that may be unaligned.\r
+ Decode Base64 ASCII encoded data to 8-bit binary representation, based on\r
+ RFC4648.\r
\r
- This function returns the 32-bit value pointed to by Buffer. The function\r
- guarantees that the read operation does not produce an alignment fault.\r
+ Decoding occurs according to "Table 1: The Base 64 Alphabet" in RFC4648.\r
\r
- If the Buffer is NULL, then ASSERT().\r
+ Whitespace is ignored at all positions:\r
+ - 0x09 ('\t') horizontal tab\r
+ - 0x0A ('\n') new line\r
+ - 0x0B ('\v') vertical tab\r
+ - 0x0C ('\f') form feed\r
+ - 0x0D ('\r') carriage return\r
+ - 0x20 (' ') space\r
\r
- @param Buffer Pointer to a 32-bit value that may be unaligned.\r
+ The minimum amount of required padding (with ASCII 0x3D, '=') is tolerated\r
+ and enforced at the end of the Base64 ASCII encoded data, and only there.\r
\r
- @return The 32-bit value read from Buffer.\r
+ Other characters outside of the encoding alphabet cause the function to\r
+ reject the Base64 ASCII encoded data.\r
\r
-**/\r
-UINT32\r
-EFIAPI\r
-ReadUnaligned32 (\r
- IN CONST UINT32 *Buffer\r
- );\r
+ @param[in] Source Array of CHAR8 elements containing the Base64\r
+ ASCII encoding. May be NULL if SourceSize is\r
+ zero.\r
\r
+ @param[in] SourceSize Number of CHAR8 elements in Source.\r
\r
-/**\r
- Writes a 32-bit value to memory that may be unaligned.\r
+ @param[out] Destination Array of UINT8 elements receiving the decoded\r
+ 8-bit binary representation. Allocated by the\r
+ caller. May be NULL if DestinationSize is\r
+ zero on input. If NULL, decoding is\r
+ performed, but the 8-bit binary\r
+ representation is not stored. If non-NULL and\r
+ the function returns an error, the contents\r
+ of Destination are indeterminate.\r
\r
- This function writes the 32-bit value specified by Value to Buffer. Value is\r
- returned. The function guarantees that the write operation does not produce\r
- an alignment fault.\r
+ @param[in,out] DestinationSize On input, the number of UINT8 elements that\r
+ the caller allocated for Destination. On\r
+ output, if the function returns\r
+ RETURN_SUCCESS or RETURN_BUFFER_TOO_SMALL,\r
+ the number of UINT8 elements that are\r
+ required for decoding the Base64 ASCII\r
+ representation. If the function returns a\r
+ value different from both RETURN_SUCCESS and\r
+ RETURN_BUFFER_TOO_SMALL, then DestinationSize\r
+ is indeterminate on output.\r
\r
- If the Buffer is NULL, then ASSERT().\r
+ @retval RETURN_SUCCESS SourceSize CHAR8 elements at Source have\r
+ been decoded to on-output DestinationSize\r
+ UINT8 elements at Destination. Note that\r
+ RETURN_SUCCESS covers the case when\r
+ DestinationSize is zero on input, and\r
+ Source decodes to zero bytes (due to\r
+ containing at most ignored whitespace).\r
\r
- @param Buffer Pointer to a 32-bit value that may be unaligned.\r
- @param Value 32-bit value to write to Buffer.\r
+ @retval RETURN_BUFFER_TOO_SMALL The input value of DestinationSize is not\r
+ large enough for decoding SourceSize CHAR8\r
+ elements at Source. The required number of\r
+ UINT8 elements has been stored to\r
+ DestinationSize.\r
\r
- @return The 32-bit value to write to Buffer.\r
+ @retval RETURN_INVALID_PARAMETER DestinationSize is NULL.\r
+\r
+ @retval RETURN_INVALID_PARAMETER Source is NULL, but SourceSize is not zero.\r
+\r
+ @retval RETURN_INVALID_PARAMETER Destination is NULL, but DestinationSize is\r
+ not zero on input.\r
+\r
+ @retval RETURN_INVALID_PARAMETER Source is non-NULL, and (Source +\r
+ SourceSize) would wrap around MAX_ADDRESS.\r
\r
+ @retval RETURN_INVALID_PARAMETER Destination is non-NULL, and (Destination +\r
+ DestinationSize) would wrap around\r
+ MAX_ADDRESS, as specified on input.\r
+\r
+ @retval RETURN_INVALID_PARAMETER None of Source and Destination are NULL,\r
+ and CHAR8[SourceSize] at Source overlaps\r
+ UINT8[DestinationSize] at Destination, as\r
+ specified on input.\r
+\r
+ @retval RETURN_INVALID_PARAMETER Invalid CHAR8 element encountered in\r
+ Source.\r
**/\r
-UINT32\r
+RETURN_STATUS\r
EFIAPI\r
-WriteUnaligned32 (\r
- OUT UINT32 *Buffer,\r
- IN UINT32 Value\r
+Base64Decode (\r
+ IN CONST CHAR8 *Source OPTIONAL,\r
+ IN UINTN SourceSize,\r
+ OUT UINT8 *Destination OPTIONAL,\r
+ IN OUT UINTN *DestinationSize\r
);\r
\r
-\r
/**\r
- Reads a 64-bit value from memory that may be unaligned.\r
+ Converts an 8-bit value to an 8-bit BCD value.\r
\r
- This function returns the 64-bit value pointed to by Buffer. The function\r
- guarantees that the read operation does not produce an alignment fault.\r
+ Converts the 8-bit value specified by Value to BCD. The BCD value is\r
+ returned.\r
\r
- If the Buffer is NULL, then ASSERT().\r
+ If Value >= 100, then ASSERT().\r
\r
- @param Buffer Pointer to a 64-bit value that may be unaligned.\r
+ @param Value The 8-bit value to convert to BCD. Range 0..99.\r
\r
- @return The 64-bit value read from Buffer.\r
+ @return The BCD value.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-ReadUnaligned64 (\r
- IN CONST UINT64 *Buffer\r
+DecimalToBcd8 (\r
+ IN UINT8 Value\r
);\r
\r
\r
/**\r
- Writes a 64-bit value to memory that may be unaligned.\r
+ Converts an 8-bit BCD value to an 8-bit value.\r
\r
- This function writes the 64-bit value specified by Value to Buffer. Value is\r
- returned. The function guarantees that the write operation does not produce\r
- an alignment fault.\r
+ Converts the 8-bit BCD value specified by Value to an 8-bit value. The 8-bit\r
+ value is returned.\r
\r
- If the Buffer is NULL, then ASSERT().\r
+ If Value >= 0xA0, then ASSERT().\r
+ If (Value & 0x0F) >= 0x0A, then ASSERT().\r
\r
- @param Buffer Pointer to a 64-bit value that may be unaligned.\r
- @param Value 64-bit value to write to Buffer.\r
+ @param Value The 8-bit BCD value to convert to an 8-bit value.\r
\r
- @return The 64-bit value to write to Buffer.\r
+ @return The 8-bit value is returned.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-WriteUnaligned64 (\r
- OUT UINT64 *Buffer,\r
- IN UINT64 Value\r
+BcdToDecimal8 (\r
+ IN UINT8 Value\r
);\r
\r
-\r
//\r
-// Bit Field Functions\r
+// File Path Manipulation Functions\r
//\r
\r
/**\r
- Returns a bit field from an 8-bit value.\r
+ Removes the last directory or file entry in a path.\r
\r
- Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
+ @param[in, out] Path The pointer to the path to modify.\r
\r
- If 8-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 7, then ASSERT().\r
- If EndBit is greater than 7, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ @retval FALSE Nothing was found to remove.\r
+ @retval TRUE A directory or file was removed.\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+PathRemoveLastItem(\r
+ IN OUT CHAR16 *Path\r
+ );\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..7.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..7.\r
+/**\r
+ Function to clean up paths.\r
+ - Single periods in the path are removed.\r
+ - Double periods in the path are removed along with a single parent directory.\r
+ - Forward slashes L'/' are converted to backward slashes L'\'.\r
\r
- @return The bit field read.\r
+ This will be done inline and the existing buffer may be larger than required\r
+ upon completion.\r
\r
+ @param[in] Path The pointer to the string containing the path.\r
+\r
+ @return Returns Path, otherwise returns NULL to indicate that an error has occurred.\r
**/\r
-UINT8\r
+CHAR16*\r
EFIAPI\r
-BitFieldRead8 (\r
- IN UINT8 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit\r
+PathCleanUpDirectories(\r
+ IN CHAR16 *Path\r
);\r
\r
+//\r
+// Linked List Functions and Macros\r
+//\r
\r
/**\r
- Writes a bit field to an 8-bit value, and returns the result.\r
+ Initializes the head node of a doubly linked list that is declared as a\r
+ global variable in a module.\r
\r
- Writes Value to the bit field specified by the StartBit and the EndBit in\r
- Operand. All other bits in Operand are preserved. The new 8-bit value is\r
- returned.\r
+ Initializes the forward and backward links of a new linked list. After\r
+ initializing a linked list with this macro, the other linked list functions\r
+ may be used to add and remove nodes from the linked list. This macro results\r
+ in smaller executables by initializing the linked list in the data section,\r
+ instead if calling the InitializeListHead() function to perform the\r
+ equivalent operation.\r
\r
- If 8-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 7, then ASSERT().\r
- If EndBit is greater than 7, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ @param ListHead The head note of a list to initialize.\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..7.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..7.\r
- @param Value New value of the bit field.\r
+**/\r
+#define INITIALIZE_LIST_HEAD_VARIABLE(ListHead) {&(ListHead), &(ListHead)}\r
\r
- @return The new 8-bit value.\r
+/**\r
+ Iterates over each node in a doubly linked list using each node's forward link.\r
\r
-**/\r
-UINT8\r
-EFIAPI\r
-BitFieldWrite8 (\r
- IN UINT8 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT8 Value\r
- );\r
+ @param Entry A pointer to a list node used as a loop cursor during iteration\r
+ @param ListHead The head node of the doubly linked list\r
\r
+**/\r
+#define BASE_LIST_FOR_EACH(Entry, ListHead) \\r
+ for(Entry = (ListHead)->ForwardLink; Entry != (ListHead); Entry = Entry->ForwardLink)\r
\r
/**\r
- Reads a bit field from an 8-bit value, performs a bitwise OR, and returns the\r
- result.\r
+ Iterates over each node in a doubly linked list using each node's forward link\r
+ with safety against node removal.\r
\r
- Performs a bitwise OR between the bit field specified by StartBit\r
- and EndBit in Operand and the value specified by OrData. All other bits in\r
- Operand are preserved. The new 8-bit value is returned.\r
+ This macro uses NextEntry to temporarily store the next list node so the node\r
+ pointed to by Entry may be deleted in the current loop iteration step and\r
+ iteration can continue from the node pointed to by NextEntry.\r
+\r
+ @param Entry A pointer to a list node used as a loop cursor during iteration\r
+ @param NextEntry A pointer to a list node used to temporarily store the next node\r
+ @param ListHead The head node of the doubly linked list\r
+\r
+**/\r
+#define BASE_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \\r
+ for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink;\\r
+ Entry != (ListHead); Entry = NextEntry, NextEntry = Entry->ForwardLink)\r
+\r
+/**\r
+ Checks whether FirstEntry and SecondEntry are part of the same doubly-linked\r
+ list.\r
\r
- If 8-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 7, then ASSERT().\r
- If EndBit is greater than 7, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If FirstEntry is NULL, then ASSERT().\r
+ If FirstEntry->ForwardLink is NULL, then ASSERT().\r
+ If FirstEntry->BackLink is NULL, then ASSERT().\r
+ If SecondEntry is NULL, then ASSERT();\r
+ If PcdMaximumLinkedListLength is not zero, and List contains more than\r
+ PcdMaximumLinkedListLength nodes, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..7.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..7.\r
- @param OrData The value to OR with the read value from the value\r
+ @param FirstEntry A pointer to a node in a linked list.\r
+ @param SecondEntry A pointer to the node to locate.\r
\r
- @return The new 8-bit value.\r
+ @retval TRUE SecondEntry is in the same doubly-linked list as FirstEntry.\r
+ @retval FALSE SecondEntry isn't in the same doubly-linked list as FirstEntry,\r
+ or FirstEntry is invalid.\r
\r
**/\r
-UINT8\r
+BOOLEAN\r
EFIAPI\r
-BitFieldOr8 (\r
- IN UINT8 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT8 OrData\r
+IsNodeInList (\r
+ IN CONST LIST_ENTRY *FirstEntry,\r
+ IN CONST LIST_ENTRY *SecondEntry\r
);\r
\r
\r
/**\r
- Reads a bit field from an 8-bit value, performs a bitwise AND, and returns\r
- the result.\r
+ Initializes the head node of a doubly linked list, and returns the pointer to\r
+ the head node of the doubly linked list.\r
\r
- Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
- in Operand and the value specified by AndData. All other bits in Operand are\r
- preserved. The new 8-bit value is returned.\r
+ Initializes the forward and backward links of a new linked list. After\r
+ initializing a linked list with this function, the other linked list\r
+ functions may be used to add and remove nodes from the linked list. It is up\r
+ to the caller of this function to allocate the memory for ListHead.\r
\r
- If 8-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 7, then ASSERT().\r
- If EndBit is greater than 7, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If ListHead is NULL, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..7.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..7.\r
- @param AndData The value to AND with the read value from the value.\r
+ @param ListHead A pointer to the head node of a new doubly linked list.\r
\r
- @return The new 8-bit value.\r
+ @return ListHead\r
\r
**/\r
-UINT8\r
+LIST_ENTRY *\r
EFIAPI\r
-BitFieldAnd8 (\r
- IN UINT8 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT8 AndData\r
+InitializeListHead (\r
+ IN OUT LIST_ENTRY *ListHead\r
);\r
\r
\r
/**\r
- Reads a bit field from an 8-bit value, performs a bitwise AND followed by a\r
- bitwise OR, and returns the result.\r
+ Adds a node to the beginning of a doubly linked list, and returns the pointer\r
+ to the head node of the doubly linked list.\r
\r
- Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
- in Operand and the value specified by AndData, followed by a bitwise \r
- OR with value specified by OrData. All other bits in Operand are\r
- preserved. The new 8-bit value is returned.\r
+ Adds the node Entry at the beginning of the doubly linked list denoted by\r
+ ListHead, and returns ListHead.\r
\r
- If 8-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 7, then ASSERT().\r
- If EndBit is greater than 7, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If ListHead is NULL, then ASSERT().\r
+ If Entry is NULL, then ASSERT().\r
+ If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
+ InitializeListHead(), then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and prior to insertion the number\r
+ of nodes in ListHead, including the ListHead node, is greater than or\r
+ equal to PcdMaximumLinkedListLength, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..7.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..7.\r
- @param AndData The value to AND with the read value from the value.\r
- @param OrData The value to OR with the result of the AND operation.\r
+ @param ListHead A pointer to the head node of a doubly linked list.\r
+ @param Entry A pointer to a node that is to be inserted at the beginning\r
+ of a doubly linked list.\r
\r
- @return The new 8-bit value.\r
+ @return ListHead\r
\r
**/\r
-UINT8\r
+LIST_ENTRY *\r
EFIAPI\r
-BitFieldAndThenOr8 (\r
- IN UINT8 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT8 AndData,\r
- IN UINT8 OrData\r
+InsertHeadList (\r
+ IN OUT LIST_ENTRY *ListHead,\r
+ IN OUT LIST_ENTRY *Entry\r
);\r
\r
\r
/**\r
- Returns a bit field from a 16-bit value.\r
+ Adds a node to the end of a doubly linked list, and returns the pointer to\r
+ the head node of the doubly linked list.\r
\r
- Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
+ Adds the node Entry to the end of the doubly linked list denoted by ListHead,\r
+ and returns ListHead.\r
\r
- If 16-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 15, then ASSERT().\r
- If EndBit is greater than 15, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If ListHead is NULL, then ASSERT().\r
+ If Entry is NULL, then ASSERT().\r
+ If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
+ InitializeListHead(), then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and prior to insertion the number\r
+ of nodes in ListHead, including the ListHead node, is greater than or\r
+ equal to PcdMaximumLinkedListLength, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..15.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..15.\r
+ @param ListHead A pointer to the head node of a doubly linked list.\r
+ @param Entry A pointer to a node that is to be added at the end of the\r
+ doubly linked list.\r
\r
- @return The bit field read.\r
+ @return ListHead\r
\r
**/\r
-UINT16\r
+LIST_ENTRY *\r
EFIAPI\r
-BitFieldRead16 (\r
- IN UINT16 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit\r
+InsertTailList (\r
+ IN OUT LIST_ENTRY *ListHead,\r
+ IN OUT LIST_ENTRY *Entry\r
);\r
\r
\r
/**\r
- Writes a bit field to a 16-bit value, and returns the result.\r
+ Retrieves the first node of a doubly linked list.\r
\r
- Writes Value to the bit field specified by the StartBit and the EndBit in\r
- Operand. All other bits in Operand are preserved. The new 16-bit value is\r
- returned.\r
+ Returns the first node of a doubly linked list. List must have been\r
+ initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
+ If List is empty, then List is returned.\r
\r
- If 16-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 15, then ASSERT().\r
- If EndBit is greater than 15, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If List is NULL, then ASSERT().\r
+ If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
+ InitializeListHead(), then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes\r
+ in List, including the List node, is greater than or equal to\r
+ PcdMaximumLinkedListLength, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..15.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..15.\r
- @param Value New value of the bit field.\r
+ @param List A pointer to the head node of a doubly linked list.\r
\r
- @return The new 16-bit value.\r
+ @return The first node of a doubly linked list.\r
+ @retval List The list is empty.\r
\r
**/\r
-UINT16\r
+LIST_ENTRY *\r
EFIAPI\r
-BitFieldWrite16 (\r
- IN UINT16 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT16 Value\r
+GetFirstNode (\r
+ IN CONST LIST_ENTRY *List\r
);\r
\r
\r
/**\r
- Reads a bit field from a 16-bit value, performs a bitwise OR, and returns the\r
- result.\r
+ Retrieves the next node of a doubly linked list.\r
\r
- Performs a bitwise OR between the bit field specified by StartBit\r
- and EndBit in Operand and the value specified by OrData. All other bits in\r
- Operand are preserved. The new 16-bit value is returned.\r
+ Returns the node of a doubly linked list that follows Node.\r
+ List must have been initialized with INTIALIZE_LIST_HEAD_VARIABLE()\r
+ or InitializeListHead(). If List is empty, then List is returned.\r
\r
- If 16-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 15, then ASSERT().\r
- If EndBit is greater than 15, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If List is NULL, then ASSERT().\r
+ If Node is NULL, then ASSERT().\r
+ If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
+ InitializeListHead(), then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and List contains more than\r
+ PcdMaximumLinkedListLength nodes, then ASSERT().\r
+ If PcdVerifyNodeInList is TRUE and Node is not a node in List, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..15.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..15.\r
- @param OrData The value to OR with the read value from the value\r
+ @param List A pointer to the head node of a doubly linked list.\r
+ @param Node A pointer to a node in the doubly linked list.\r
\r
- @return The new 16-bit value.\r
+ @return The pointer to the next node if one exists. Otherwise List is returned.\r
\r
**/\r
-UINT16\r
+LIST_ENTRY *\r
EFIAPI\r
-BitFieldOr16 (\r
- IN UINT16 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT16 OrData\r
+GetNextNode (\r
+ IN CONST LIST_ENTRY *List,\r
+ IN CONST LIST_ENTRY *Node\r
);\r
\r
\r
/**\r
- Reads a bit field from a 16-bit value, performs a bitwise AND, and returns\r
- the result.\r
+ Retrieves the previous node of a doubly linked list.\r
\r
- Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
- in Operand and the value specified by AndData. All other bits in Operand are\r
- preserved. The new 16-bit value is returned.\r
+ Returns the node of a doubly linked list that precedes Node.\r
+ List must have been initialized with INTIALIZE_LIST_HEAD_VARIABLE()\r
+ or InitializeListHead(). If List is empty, then List is returned.\r
\r
- If 16-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 15, then ASSERT().\r
- If EndBit is greater than 15, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If List is NULL, then ASSERT().\r
+ If Node is NULL, then ASSERT().\r
+ If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
+ InitializeListHead(), then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and List contains more than\r
+ PcdMaximumLinkedListLength nodes, then ASSERT().\r
+ If PcdVerifyNodeInList is TRUE and Node is not a node in List, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..15.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..15.\r
- @param AndData The value to AND with the read value from the value\r
+ @param List A pointer to the head node of a doubly linked list.\r
+ @param Node A pointer to a node in the doubly linked list.\r
\r
- @return The new 16-bit value.\r
+ @return The pointer to the previous node if one exists. Otherwise List is returned.\r
\r
**/\r
-UINT16\r
+LIST_ENTRY *\r
EFIAPI\r
-BitFieldAnd16 (\r
- IN UINT16 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT16 AndData\r
+GetPreviousNode (\r
+ IN CONST LIST_ENTRY *List,\r
+ IN CONST LIST_ENTRY *Node\r
);\r
\r
\r
/**\r
- Reads a bit field from a 16-bit value, performs a bitwise AND followed by a\r
- bitwise OR, and returns the result.\r
-\r
- Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
- in Operand and the value specified by AndData, followed by a bitwise \r
- OR with value specified by OrData. All other bits in Operand are\r
- preserved. The new 16-bit value is returned.\r
+ Checks to see if a doubly linked list is empty or not.\r
\r
- If 16-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 15, then ASSERT().\r
- If EndBit is greater than 15, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ Checks to see if the doubly linked list is empty. If the linked list contains\r
+ zero nodes, this function returns TRUE. Otherwise, it returns FALSE.\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..15.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..15.\r
- @param AndData The value to AND with the read value from the value.\r
- @param OrData The value to OR with the result of the AND operation.\r
+ If ListHead is NULL, then ASSERT().\r
+ If ListHead was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
+ InitializeListHead(), then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes\r
+ in List, including the List node, is greater than or equal to\r
+ PcdMaximumLinkedListLength, then ASSERT().\r
\r
- @return The new 16-bit value.\r
+ @param ListHead A pointer to the head node of a doubly linked list.\r
+\r
+ @retval TRUE The linked list is empty.\r
+ @retval FALSE The linked list is not empty.\r
\r
**/\r
-UINT16\r
+BOOLEAN\r
EFIAPI\r
-BitFieldAndThenOr16 (\r
- IN UINT16 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT16 AndData,\r
- IN UINT16 OrData\r
+IsListEmpty (\r
+ IN CONST LIST_ENTRY *ListHead\r
);\r
\r
\r
/**\r
- Returns a bit field from a 32-bit value.\r
+ Determines if a node in a doubly linked list is the head node of a the same\r
+ doubly linked list. This function is typically used to terminate a loop that\r
+ traverses all the nodes in a doubly linked list starting with the head node.\r
\r
- Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
+ Returns TRUE if Node is equal to List. Returns FALSE if Node is one of the\r
+ nodes in the doubly linked list specified by List. List must have been\r
+ initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
\r
- If 32-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 31, then ASSERT().\r
- If EndBit is greater than 31, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If List is NULL, then ASSERT().\r
+ If Node is NULL, then ASSERT().\r
+ If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead(),\r
+ then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes\r
+ in List, including the List node, is greater than or equal to\r
+ PcdMaximumLinkedListLength, then ASSERT().\r
+ If PcdVerifyNodeInList is TRUE and Node is not a node in List the and Node is not equal\r
+ to List, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..31.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..31.\r
+ @param List A pointer to the head node of a doubly linked list.\r
+ @param Node A pointer to a node in the doubly linked list.\r
\r
- @return The bit field read.\r
+ @retval TRUE Node is the head of the doubly-linked list pointed by List.\r
+ @retval FALSE Node is not the head of the doubly-linked list pointed by List.\r
\r
**/\r
-UINT32\r
+BOOLEAN\r
EFIAPI\r
-BitFieldRead32 (\r
- IN UINT32 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit\r
+IsNull (\r
+ IN CONST LIST_ENTRY *List,\r
+ IN CONST LIST_ENTRY *Node\r
);\r
\r
\r
/**\r
- Writes a bit field to a 32-bit value, and returns the result.\r
+ Determines if a node the last node in a doubly linked list.\r
\r
- Writes Value to the bit field specified by the StartBit and the EndBit in\r
- Operand. All other bits in Operand are preserved. The new 32-bit value is\r
- returned.\r
+ Returns TRUE if Node is the last node in the doubly linked list specified by\r
+ List. Otherwise, FALSE is returned. List must have been initialized with\r
+ INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
\r
- If 32-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 31, then ASSERT().\r
- If EndBit is greater than 31, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If List is NULL, then ASSERT().\r
+ If Node is NULL, then ASSERT().\r
+ If List was not initialized with INTIALIZE_LIST_HEAD_VARIABLE() or\r
+ InitializeListHead(), then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes\r
+ in List, including the List node, is greater than or equal to\r
+ PcdMaximumLinkedListLength, then ASSERT().\r
+ If PcdVerifyNodeInList is TRUE and Node is not a node in List, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..31.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..31.\r
- @param Value New value of the bit field.\r
+ @param List A pointer to the head node of a doubly linked list.\r
+ @param Node A pointer to a node in the doubly linked list.\r
\r
- @return The new 32-bit value.\r
+ @retval TRUE Node is the last node in the linked list.\r
+ @retval FALSE Node is not the last node in the linked list.\r
\r
**/\r
-UINT32\r
+BOOLEAN\r
EFIAPI\r
-BitFieldWrite32 (\r
- IN UINT32 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT32 Value\r
+IsNodeAtEnd (\r
+ IN CONST LIST_ENTRY *List,\r
+ IN CONST LIST_ENTRY *Node\r
);\r
\r
\r
/**\r
- Reads a bit field from a 32-bit value, performs a bitwise OR, and returns the\r
- result.\r
+ Swaps the location of two nodes in a doubly linked list, and returns the\r
+ first node after the swap.\r
\r
- Performs a bitwise OR between the bit field specified by StartBit\r
- and EndBit in Operand and the value specified by OrData. All other bits in\r
- Operand are preserved. The new 32-bit value is returned.\r
+ If FirstEntry is identical to SecondEntry, then SecondEntry is returned.\r
+ Otherwise, the location of the FirstEntry node is swapped with the location\r
+ of the SecondEntry node in a doubly linked list. SecondEntry must be in the\r
+ same double linked list as FirstEntry and that double linked list must have\r
+ been initialized with INTIALIZE_LIST_HEAD_VARIABLE() or InitializeListHead().\r
+ SecondEntry is returned after the nodes are swapped.\r
\r
- If 32-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 31, then ASSERT().\r
- If EndBit is greater than 31, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If FirstEntry is NULL, then ASSERT().\r
+ If SecondEntry is NULL, then ASSERT().\r
+ If PcdVerifyNodeInList is TRUE and SecondEntry and FirstEntry are not in the\r
+ same linked list, then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
+ linked list containing the FirstEntry and SecondEntry nodes, including\r
+ the FirstEntry and SecondEntry nodes, is greater than or equal to\r
+ PcdMaximumLinkedListLength, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..31.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..31.\r
- @param OrData The value to OR with the read value from the value\r
+ @param FirstEntry A pointer to a node in a linked list.\r
+ @param SecondEntry A pointer to another node in the same linked list.\r
\r
- @return The new 32-bit value.\r
+ @return SecondEntry.\r
\r
**/\r
-UINT32\r
+LIST_ENTRY *\r
EFIAPI\r
-BitFieldOr32 (\r
- IN UINT32 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT32 OrData\r
+SwapListEntries (\r
+ IN OUT LIST_ENTRY *FirstEntry,\r
+ IN OUT LIST_ENTRY *SecondEntry\r
);\r
\r
\r
/**\r
- Reads a bit field from a 32-bit value, performs a bitwise AND, and returns\r
- the result.\r
+ Removes a node from a doubly linked list, and returns the node that follows\r
+ the removed node.\r
\r
- Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
- in Operand and the value specified by AndData. All other bits in Operand are\r
- preserved. The new 32-bit value is returned.\r
+ Removes the node Entry from a doubly linked list. It is up to the caller of\r
+ this function to release the memory used by this node if that is required. On\r
+ exit, the node following Entry in the doubly linked list is returned. If\r
+ Entry is the only node in the linked list, then the head node of the linked\r
+ list is returned.\r
\r
- If 32-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 31, then ASSERT().\r
- If EndBit is greater than 31, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If Entry is NULL, then ASSERT().\r
+ If Entry is the head node of an empty list, then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
+ linked list containing Entry, including the Entry node, is greater than\r
+ or equal to PcdMaximumLinkedListLength, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..31.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..31.\r
- @param AndData The value to AND with the read value from the value\r
+ @param Entry A pointer to a node in a linked list.\r
\r
- @return The new 32-bit value.\r
+ @return Entry.\r
\r
**/\r
-UINT32\r
+LIST_ENTRY *\r
EFIAPI\r
-BitFieldAnd32 (\r
- IN UINT32 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT32 AndData\r
+RemoveEntryList (\r
+ IN CONST LIST_ENTRY *Entry\r
);\r
\r
-\r
+//\r
+// Math Services\r
+//\r
/**\r
- Reads a bit field from a 32-bit value, performs a bitwise AND followed by a\r
- bitwise OR, and returns the result.\r
+ Prototype for comparison function for any two element types.\r
\r
- Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
- in Operand and the value specified by AndData, followed by a bitwise \r
- OR with value specified by OrData. All other bits in Operand are\r
- preserved. The new 32-bit value is returned.\r
+ @param[in] Buffer1 The pointer to first buffer.\r
+ @param[in] Buffer2 The pointer to second buffer.\r
\r
- If 32-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 31, then ASSERT().\r
- If EndBit is greater than 31, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ @retval 0 Buffer1 equal to Buffer2.\r
+ @return <0 Buffer1 is less than Buffer2.\r
+ @return >0 Buffer1 is greater than Buffer2.\r
+**/\r
+typedef\r
+INTN\r
+(EFIAPI *BASE_SORT_COMPARE)(\r
+ IN CONST VOID *Buffer1,\r
+ IN CONST VOID *Buffer2\r
+ );\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..31.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..31.\r
- @param AndData The value to AND with the read value from the value.\r
- @param OrData The value to OR with the result of the AND operation.\r
+/**\r
+ This function is identical to perform QuickSort,\r
+ except that is uses the pre-allocated buffer so the in place sorting does not need to\r
+ allocate and free buffers constantly.\r
\r
- @return The new 32-bit value.\r
+ Each element must be equal sized.\r
\r
+ if BufferToSort is NULL, then ASSERT.\r
+ if CompareFunction is NULL, then ASSERT.\r
+ if BufferOneElement is NULL, then ASSERT.\r
+ if ElementSize is < 1, then ASSERT.\r
+\r
+ if Count is < 2 then perform no action.\r
+\r
+ @param[in, out] BufferToSort on call a Buffer of (possibly sorted) elements\r
+ on return a buffer of sorted elements\r
+ @param[in] Count the number of elements in the buffer to sort\r
+ @param[in] ElementSize Size of an element in bytes\r
+ @param[in] CompareFunction The function to call to perform the comparison\r
+ of any 2 elements\r
+ @param[out] BufferOneElement Caller provided buffer whose size equals to ElementSize.\r
+ It's used by QuickSort() for swapping in sorting.\r
**/\r
-UINT32\r
+VOID\r
EFIAPI\r
-BitFieldAndThenOr32 (\r
- IN UINT32 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT32 AndData,\r
- IN UINT32 OrData\r
+QuickSort (\r
+ IN OUT VOID *BufferToSort,\r
+ IN CONST UINTN Count,\r
+ IN CONST UINTN ElementSize,\r
+ IN BASE_SORT_COMPARE CompareFunction,\r
+ OUT VOID *BufferOneElement\r
);\r
\r
-\r
/**\r
- Returns a bit field from a 64-bit value.\r
+ Shifts a 64-bit integer left between 0 and 63 bits. The low bits are filled\r
+ with zeros. The shifted value is returned.\r
\r
- Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
+ This function shifts the 64-bit value Operand to the left by Count bits. The\r
+ low Count bits are set to zero. The shifted value is returned.\r
\r
- If 64-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 63, then ASSERT().\r
- If EndBit is greater than 63, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If Count is greater than 63, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..63.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..63.\r
+ @param Operand The 64-bit operand to shift left.\r
+ @param Count The number of bits to shift left.\r
\r
- @return The bit field read.\r
+ @return Operand << Count.\r
\r
**/\r
UINT64\r
EFIAPI\r
-BitFieldRead64 (\r
+LShiftU64 (\r
IN UINT64 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit\r
+ IN UINTN Count\r
);\r
\r
\r
/**\r
- Writes a bit field to a 64-bit value, and returns the result.\r
+ Shifts a 64-bit integer right between 0 and 63 bits. This high bits are\r
+ filled with zeros. The shifted value is returned.\r
\r
- Writes Value to the bit field specified by the StartBit and the EndBit in\r
- Operand. All other bits in Operand are preserved. The new 64-bit value is\r
- returned.\r
+ This function shifts the 64-bit value Operand to the right by Count bits. The\r
+ high Count bits are set to zero. The shifted value is returned.\r
\r
- If 64-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 63, then ASSERT().\r
- If EndBit is greater than 63, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If Count is greater than 63, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..63.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..63.\r
- @param Value New value of the bit field.\r
+ @param Operand The 64-bit operand to shift right.\r
+ @param Count The number of bits to shift right.\r
\r
- @return The new 64-bit value.\r
+ @return Operand >> Count\r
\r
**/\r
UINT64\r
EFIAPI\r
-BitFieldWrite64 (\r
+RShiftU64 (\r
IN UINT64 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT64 Value\r
+ IN UINTN Count\r
);\r
\r
\r
/**\r
- Reads a bit field from a 64-bit value, performs a bitwise OR, and returns the\r
- result.\r
+ Shifts a 64-bit integer right between 0 and 63 bits. The high bits are filled\r
+ with original integer's bit 63. The shifted value is returned.\r
\r
- Performs a bitwise OR between the bit field specified by StartBit\r
- and EndBit in Operand and the value specified by OrData. All other bits in\r
- Operand are preserved. The new 64-bit value is returned.\r
+ This function shifts the 64-bit value Operand to the right by Count bits. The\r
+ high Count bits are set to bit 63 of Operand. The shifted value is returned.\r
\r
- If 64-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 63, then ASSERT().\r
- If EndBit is greater than 63, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If Count is greater than 63, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..63.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..63.\r
- @param OrData The value to OR with the read value from the value\r
+ @param Operand The 64-bit operand to shift right.\r
+ @param Count The number of bits to shift right.\r
\r
- @return The new 64-bit value.\r
+ @return Operand >> Count\r
\r
**/\r
UINT64\r
EFIAPI\r
-BitFieldOr64 (\r
+ARShiftU64 (\r
IN UINT64 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT64 OrData\r
+ IN UINTN Count\r
);\r
\r
\r
/**\r
- Reads a bit field from a 64-bit value, performs a bitwise AND, and returns\r
- the result.\r
+ Rotates a 32-bit integer left between 0 and 31 bits, filling the low bits\r
+ with the high bits that were rotated.\r
\r
- Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
- in Operand and the value specified by AndData. All other bits in Operand are\r
- preserved. The new 64-bit value is returned.\r
+ This function rotates the 32-bit value Operand to the left by Count bits. The\r
+ low Count bits are fill with the high Count bits of Operand. The rotated\r
+ value is returned.\r
\r
- If 64-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 63, then ASSERT().\r
- If EndBit is greater than 63, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If Count is greater than 31, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..63.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..63.\r
- @param AndData The value to AND with the read value from the value\r
+ @param Operand The 32-bit operand to rotate left.\r
+ @param Count The number of bits to rotate left.\r
\r
- @return The new 64-bit value.\r
+ @return Operand << Count\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-BitFieldAnd64 (\r
- IN UINT64 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT64 AndData\r
+LRotU32 (\r
+ IN UINT32 Operand,\r
+ IN UINTN Count\r
);\r
\r
\r
/**\r
- Reads a bit field from a 64-bit value, performs a bitwise AND followed by a\r
- bitwise OR, and returns the result.\r
+ Rotates a 32-bit integer right between 0 and 31 bits, filling the high bits\r
+ with the low bits that were rotated.\r
\r
- Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
- in Operand and the value specified by AndData, followed by a bitwise \r
- OR with value specified by OrData. All other bits in Operand are\r
- preserved. The new 64-bit value is returned.\r
+ This function rotates the 32-bit value Operand to the right by Count bits.\r
+ The high Count bits are fill with the low Count bits of Operand. The rotated\r
+ value is returned.\r
\r
- If 64-bit operations are not supported, then ASSERT().\r
- If StartBit is greater than 63, then ASSERT().\r
- If EndBit is greater than 63, then ASSERT().\r
- If EndBit is less than StartBit, then ASSERT().\r
+ If Count is greater than 31, then ASSERT().\r
\r
- @param Operand Operand on which to perform the bitfield operation.\r
- @param StartBit The ordinal of the least significant bit in the bit field.\r
- Range 0..63.\r
- @param EndBit The ordinal of the most significant bit in the bit field.\r
- Range 0..63.\r
- @param AndData The value to AND with the read value from the value.\r
- @param OrData The value to OR with the result of the AND operation.\r
+ @param Operand The 32-bit operand to rotate right.\r
+ @param Count The number of bits to rotate right.\r
\r
- @return The new 64-bit value.\r
+ @return Operand >> Count\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-BitFieldAndThenOr64 (\r
- IN UINT64 Operand,\r
- IN UINTN StartBit,\r
- IN UINTN EndBit,\r
- IN UINT64 AndData,\r
- IN UINT64 OrData\r
+RRotU32 (\r
+ IN UINT32 Operand,\r
+ IN UINTN Count\r
);\r
\r
-//\r
-// Base Library Checksum Functions\r
-//\r
\r
/**\r
- Returns the sum of all elements in a buffer in unit of UINT8.\r
- During calculation, the carry bits are dropped.\r
+ Rotates a 64-bit integer left between 0 and 63 bits, filling the low bits\r
+ with the high bits that were rotated.\r
\r
- This function calculates the sum of all elements in a buffer\r
- in unit of UINT8. The carry bits in result of addition are dropped.\r
- The result is returned as UINT8. If Length is Zero, then Zero is\r
- returned.\r
+ This function rotates the 64-bit value Operand to the left by Count bits. The\r
+ low Count bits are fill with the high Count bits of Operand. The rotated\r
+ value is returned.\r
\r
- If Buffer is NULL, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+ If Count is greater than 63, then ASSERT().\r
\r
- @param Buffer Pointer to the buffer to carry out the sum operation.\r
- @param Length The size, in bytes, of Buffer.\r
+ @param Operand The 64-bit operand to rotate left.\r
+ @param Count The number of bits to rotate left.\r
\r
- @return Sum The sum of Buffer with carry bits dropped during additions.\r
+ @return Operand << Count\r
\r
**/\r
-UINT8\r
+UINT64\r
EFIAPI\r
-CalculateSum8 (\r
- IN CONST UINT8 *Buffer,\r
- IN UINTN Length\r
+LRotU64 (\r
+ IN UINT64 Operand,\r
+ IN UINTN Count\r
);\r
\r
\r
/**\r
- Returns the two's complement checksum of all elements in a buffer\r
- of 8-bit values.\r
+ Rotates a 64-bit integer right between 0 and 63 bits, filling the high bits\r
+ with the high low bits that were rotated.\r
\r
- This function first calculates the sum of the 8-bit values in the\r
- buffer specified by Buffer and Length. The carry bits in the result\r
- of addition are dropped. Then, the two's complement of the sum is\r
- returned. If Length is 0, then 0 is returned.\r
+ This function rotates the 64-bit value Operand to the right by Count bits.\r
+ The high Count bits are fill with the low Count bits of Operand. The rotated\r
+ value is returned.\r
\r
- If Buffer is NULL, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+ If Count is greater than 63, then ASSERT().\r
\r
- @param Buffer Pointer to the buffer to carry out the checksum operation.\r
- @param Length The size, in bytes, of Buffer.\r
+ @param Operand The 64-bit operand to rotate right.\r
+ @param Count The number of bits to rotate right.\r
\r
- @return Checksum The 2's complement checksum of Buffer.\r
+ @return Operand >> Count\r
\r
**/\r
-UINT8\r
+UINT64\r
EFIAPI\r
-CalculateCheckSum8 (\r
- IN CONST UINT8 *Buffer,\r
- IN UINTN Length\r
+RRotU64 (\r
+ IN UINT64 Operand,\r
+ IN UINTN Count\r
);\r
\r
\r
/**\r
- Returns the sum of all elements in a buffer of 16-bit values. During\r
- calculation, the carry bits are dropped.\r
-\r
- This function calculates the sum of the 16-bit values in the buffer\r
- specified by Buffer and Length. The carry bits in result of addition are dropped.\r
- The 16-bit result is returned. If Length is 0, then 0 is returned.\r
+ Returns the bit position of the lowest bit set in a 32-bit value.\r
\r
- If Buffer is NULL, then ASSERT().\r
- If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r
- If Length is not aligned on a 16-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+ This function computes the bit position of the lowest bit set in the 32-bit\r
+ value specified by Operand. If Operand is zero, then -1 is returned.\r
+ Otherwise, a value between 0 and 31 is returned.\r
\r
- @param Buffer Pointer to the buffer to carry out the sum operation.\r
- @param Length The size, in bytes, of Buffer.\r
+ @param Operand The 32-bit operand to evaluate.\r
\r
- @return Sum The sum of Buffer with carry bits dropped during additions.\r
+ @retval 0..31 The lowest bit set in Operand was found.\r
+ @retval -1 Operand is zero.\r
\r
**/\r
-UINT16\r
+INTN\r
EFIAPI\r
-CalculateSum16 (\r
- IN CONST UINT16 *Buffer,\r
- IN UINTN Length\r
+LowBitSet32 (\r
+ IN UINT32 Operand\r
);\r
\r
\r
/**\r
- Returns the two's complement checksum of all elements in a buffer of\r
- 16-bit values.\r
+ Returns the bit position of the lowest bit set in a 64-bit value.\r
\r
- This function first calculates the sum of the 16-bit values in the buffer\r
- specified by Buffer and Length. The carry bits in the result of addition\r
- are dropped. Then, the two's complement of the sum is returned. If Length\r
- is 0, then 0 is returned.\r
+ This function computes the bit position of the lowest bit set in the 64-bit\r
+ value specified by Operand. If Operand is zero, then -1 is returned.\r
+ Otherwise, a value between 0 and 63 is returned.\r
\r
- If Buffer is NULL, then ASSERT().\r
- If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r
- If Length is not aligned on a 16-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+ @param Operand The 64-bit operand to evaluate.\r
\r
- @param Buffer Pointer to the buffer to carry out the checksum operation.\r
- @param Length The size, in bytes, of Buffer.\r
+ @retval 0..63 The lowest bit set in Operand was found.\r
+ @retval -1 Operand is zero.\r
\r
- @return Checksum The 2's complement checksum of Buffer.\r
\r
**/\r
-UINT16\r
+INTN\r
EFIAPI\r
-CalculateCheckSum16 (\r
- IN CONST UINT16 *Buffer,\r
- IN UINTN Length\r
+LowBitSet64 (\r
+ IN UINT64 Operand\r
);\r
\r
\r
/**\r
- Returns the sum of all elements in a buffer of 32-bit values. During\r
- calculation, the carry bits are dropped.\r
-\r
- This function calculates the sum of the 32-bit values in the buffer\r
- specified by Buffer and Length. The carry bits in result of addition are dropped.\r
- The 32-bit result is returned. If Length is 0, then 0 is returned.\r
+ Returns the bit position of the highest bit set in a 32-bit value. Equivalent\r
+ to log2(x).\r
\r
- If Buffer is NULL, then ASSERT().\r
- If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
- If Length is not aligned on a 32-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+ This function computes the bit position of the highest bit set in the 32-bit\r
+ value specified by Operand. If Operand is zero, then -1 is returned.\r
+ Otherwise, a value between 0 and 31 is returned.\r
\r
- @param Buffer Pointer to the buffer to carry out the sum operation.\r
- @param Length The size, in bytes, of Buffer.\r
+ @param Operand The 32-bit operand to evaluate.\r
\r
- @return Sum The sum of Buffer with carry bits dropped during additions.\r
+ @retval 0..31 Position of the highest bit set in Operand if found.\r
+ @retval -1 Operand is zero.\r
\r
**/\r
-UINT32\r
+INTN\r
EFIAPI\r
-CalculateSum32 (\r
- IN CONST UINT32 *Buffer,\r
- IN UINTN Length\r
+HighBitSet32 (\r
+ IN UINT32 Operand\r
);\r
\r
\r
/**\r
- Returns the two's complement checksum of all elements in a buffer of\r
- 32-bit values.\r
-\r
- This function first calculates the sum of the 32-bit values in the buffer\r
- specified by Buffer and Length. The carry bits in the result of addition\r
- are dropped. Then, the two's complement of the sum is returned. If Length\r
- is 0, then 0 is returned.\r
+ Returns the bit position of the highest bit set in a 64-bit value. Equivalent\r
+ to log2(x).\r
\r
- If Buffer is NULL, then ASSERT().\r
- If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
- If Length is not aligned on a 32-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+ This function computes the bit position of the highest bit set in the 64-bit\r
+ value specified by Operand. If Operand is zero, then -1 is returned.\r
+ Otherwise, a value between 0 and 63 is returned.\r
\r
- @param Buffer Pointer to the buffer to carry out the checksum operation.\r
- @param Length The size, in bytes, of Buffer.\r
+ @param Operand The 64-bit operand to evaluate.\r
\r
- @return Checksum The 2's complement checksum of Buffer.\r
+ @retval 0..63 Position of the highest bit set in Operand if found.\r
+ @retval -1 Operand is zero.\r
\r
**/\r
-UINT32\r
+INTN\r
EFIAPI\r
-CalculateCheckSum32 (\r
- IN CONST UINT32 *Buffer,\r
- IN UINTN Length\r
+HighBitSet64 (\r
+ IN UINT64 Operand\r
);\r
\r
\r
/**\r
- Returns the sum of all elements in a buffer of 64-bit values. During\r
- calculation, the carry bits are dropped.\r
-\r
- This function calculates the sum of the 64-bit values in the buffer\r
- specified by Buffer and Length. The carry bits in result of addition are dropped.\r
- The 64-bit result is returned. If Length is 0, then 0 is returned.\r
+ Returns the value of the highest bit set in a 32-bit value. Equivalent to\r
+ 1 << log2(x).\r
\r
- If Buffer is NULL, then ASSERT().\r
- If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r
- If Length is not aligned on a 64-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+ This function computes the value of the highest bit set in the 32-bit value\r
+ specified by Operand. If Operand is zero, then zero is returned.\r
\r
- @param Buffer Pointer to the buffer to carry out the sum operation.\r
- @param Length The size, in bytes, of Buffer.\r
+ @param Operand The 32-bit operand to evaluate.\r
\r
- @return Sum The sum of Buffer with carry bits dropped during additions.\r
+ @return 1 << HighBitSet32(Operand)\r
+ @retval 0 Operand is zero.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-CalculateSum64 (\r
- IN CONST UINT64 *Buffer,\r
- IN UINTN Length\r
+GetPowerOfTwo32 (\r
+ IN UINT32 Operand\r
);\r
\r
\r
/**\r
- Returns the two's complement checksum of all elements in a buffer of\r
- 64-bit values.\r
-\r
- This function first calculates the sum of the 64-bit values in the buffer\r
- specified by Buffer and Length. The carry bits in the result of addition\r
- are dropped. Then, the two's complement of the sum is returned. If Length\r
- is 0, then 0 is returned.\r
+ Returns the value of the highest bit set in a 64-bit value. Equivalent to\r
+ 1 << log2(x).\r
\r
- If Buffer is NULL, then ASSERT().\r
- If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r
- If Length is not aligned on a 64-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+ This function computes the value of the highest bit set in the 64-bit value\r
+ specified by Operand. If Operand is zero, then zero is returned.\r
\r
- @param Buffer Pointer to the buffer to carry out the checksum operation.\r
- @param Length The size, in bytes, of Buffer.\r
+ @param Operand The 64-bit operand to evaluate.\r
\r
- @return Checksum The 2's complement checksum of Buffer.\r
+ @return 1 << HighBitSet64(Operand)\r
+ @retval 0 Operand is zero.\r
\r
**/\r
UINT64\r
EFIAPI\r
-CalculateCheckSum64 (\r
- IN CONST UINT64 *Buffer,\r
- IN UINTN Length\r
+GetPowerOfTwo64 (\r
+ IN UINT64 Operand\r
);\r
\r
\r
-//\r
-// Base Library CPU Functions\r
-//\r
-\r
/**\r
- Function entry point used when a stack switch is requested with SwitchStack()\r
-\r
- @param Context1 Context1 parameter passed into SwitchStack().\r
- @param Context2 Context2 parameter passed into SwitchStack().\r
-\r
-**/\r
-typedef\r
-VOID\r
-(EFIAPI *SWITCH_STACK_ENTRY_POINT)(\r
- IN VOID *Context1, OPTIONAL\r
- IN VOID *Context2 OPTIONAL\r
- );\r
+ Switches the endianness of a 16-bit integer.\r
\r
+ This function swaps the bytes in a 16-bit unsigned value to switch the value\r
+ from little endian to big endian or vice versa. The byte swapped value is\r
+ returned.\r
\r
-/**\r
- Used to serialize load and store operations.\r
+ @param Value A 16-bit unsigned value.\r
\r
- All loads and stores that proceed calls to this function are guaranteed to be\r
- globally visible when this function returns.\r
+ @return The byte swapped Value.\r
\r
**/\r
-VOID\r
+UINT16\r
EFIAPI\r
-MemoryFence (\r
- VOID\r
+SwapBytes16 (\r
+ IN UINT16 Value\r
);\r
\r
\r
/**\r
- Saves the current CPU context that can be restored with a call to LongJump()\r
- and returns 0.\r
-\r
- Saves the current CPU context in the buffer specified by JumpBuffer and\r
- returns 0. The initial call to SetJump() must always return 0. Subsequent\r
- calls to LongJump() cause a non-zero value to be returned by SetJump().\r
+ Switches the endianness of a 32-bit integer.\r
\r
- If JumpBuffer is NULL, then ASSERT().\r
- For Itanium processors, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
- \r
- NOTE: The structure BASE_LIBRARY_JUMP_BUFFER is CPU architecture specific.\r
- The same structure must never be used for more than one CPU architecture context.\r
- For example, a BASE_LIBRARY_JUMP_BUFFER allocated by an IA-32 module must never be used from an x64 module. \r
- SetJump()/LongJump() is not currently supported for the EBC processor type. \r
+ This function swaps the bytes in a 32-bit unsigned value to switch the value\r
+ from little endian to big endian or vice versa. The byte swapped value is\r
+ returned.\r
\r
- @param JumpBuffer A pointer to CPU context buffer.\r
+ @param Value A 32-bit unsigned value.\r
\r
- @retval 0 Indicates a return from SetJump().\r
+ @return The byte swapped Value.\r
\r
**/\r
-UINTN\r
+UINT32\r
EFIAPI\r
-SetJump (\r
- OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer\r
+SwapBytes32 (\r
+ IN UINT32 Value\r
);\r
\r
\r
/**\r
- Restores the CPU context that was saved with SetJump().\r
+ Switches the endianness of a 64-bit integer.\r
\r
- Restores the CPU context from the buffer specified by JumpBuffer. This\r
- function never returns to the caller. Instead is resumes execution based on\r
- the state of JumpBuffer.\r
+ This function swaps the bytes in a 64-bit unsigned value to switch the value\r
+ from little endian to big endian or vice versa. The byte swapped value is\r
+ returned.\r
\r
- If JumpBuffer is NULL, then ASSERT().\r
- For Itanium processors, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
- If Value is 0, then ASSERT().\r
+ @param Value A 64-bit unsigned value.\r
\r
- @param JumpBuffer A pointer to CPU context buffer.\r
- @param Value The value to return when the SetJump() context is\r
- restored and must be non-zero.\r
+ @return The byte swapped Value.\r
\r
**/\r
-VOID\r
+UINT64\r
EFIAPI\r
-LongJump (\r
- IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,\r
- IN UINTN Value\r
+SwapBytes64 (\r
+ IN UINT64 Value\r
);\r
\r
\r
/**\r
- Enables CPU interrupts.\r
+ Multiples a 64-bit unsigned integer by a 32-bit unsigned integer and\r
+ generates a 64-bit unsigned result.\r
\r
-**/\r
-VOID\r
-EFIAPI\r
-EnableInterrupts (\r
- VOID\r
- );\r
+ This function multiples the 64-bit unsigned value Multiplicand by the 32-bit\r
+ unsigned value Multiplier and generates a 64-bit unsigned result. This 64-\r
+ bit unsigned result is returned.\r
\r
+ @param Multiplicand A 64-bit unsigned value.\r
+ @param Multiplier A 32-bit unsigned value.\r
\r
-/**\r
- Disables CPU interrupts.\r
+ @return Multiplicand * Multiplier\r
\r
**/\r
-VOID\r
+UINT64\r
EFIAPI\r
-DisableInterrupts (\r
- VOID\r
+MultU64x32 (\r
+ IN UINT64 Multiplicand,\r
+ IN UINT32 Multiplier\r
);\r
\r
\r
/**\r
- Disables CPU interrupts and returns the interrupt state prior to the disable\r
- operation.\r
+ Multiples a 64-bit unsigned integer by a 64-bit unsigned integer and\r
+ generates a 64-bit unsigned result.\r
\r
- @retval TRUE CPU interrupts were enabled on entry to this call.\r
- @retval FALSE CPU interrupts were disabled on entry to this call.\r
+ This function multiples the 64-bit unsigned value Multiplicand by the 64-bit\r
+ unsigned value Multiplier and generates a 64-bit unsigned result. This 64-\r
+ bit unsigned result is returned.\r
+\r
+ @param Multiplicand A 64-bit unsigned value.\r
+ @param Multiplier A 64-bit unsigned value.\r
+\r
+ @return Multiplicand * Multiplier.\r
\r
**/\r
-BOOLEAN\r
+UINT64\r
EFIAPI\r
-SaveAndDisableInterrupts (\r
- VOID\r
+MultU64x64 (\r
+ IN UINT64 Multiplicand,\r
+ IN UINT64 Multiplier\r
);\r
\r
\r
/**\r
- Enables CPU interrupts for the smallest window required to capture any\r
- pending interrupts.\r
+ Multiples a 64-bit signed integer by a 64-bit signed integer and generates a\r
+ 64-bit signed result.\r
+\r
+ This function multiples the 64-bit signed value Multiplicand by the 64-bit\r
+ signed value Multiplier and generates a 64-bit signed result. This 64-bit\r
+ signed result is returned.\r
+\r
+ @param Multiplicand A 64-bit signed value.\r
+ @param Multiplier A 64-bit signed value.\r
+\r
+ @return Multiplicand * Multiplier\r
\r
**/\r
-VOID\r
+INT64\r
EFIAPI\r
-EnableDisableInterrupts (\r
- VOID\r
+MultS64x64 (\r
+ IN INT64 Multiplicand,\r
+ IN INT64 Multiplier\r
);\r
\r
\r
/**\r
- Retrieves the current CPU interrupt state.\r
+ Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
+ a 64-bit unsigned result.\r
\r
- Returns TRUE is interrupts are currently enabled. Otherwise\r
- returns FALSE.\r
+ This function divides the 64-bit unsigned value Dividend by the 32-bit\r
+ unsigned value Divisor and generates a 64-bit unsigned quotient. This\r
+ function returns the 64-bit unsigned quotient.\r
\r
- @retval TRUE CPU interrupts are enabled.\r
- @retval FALSE CPU interrupts are disabled.\r
+ If Divisor is 0, then ASSERT().\r
+\r
+ @param Dividend A 64-bit unsigned value.\r
+ @param Divisor A 32-bit unsigned value.\r
+\r
+ @return Dividend / Divisor.\r
\r
**/\r
-BOOLEAN\r
+UINT64\r
EFIAPI\r
-GetInterruptState (\r
- VOID\r
+DivU64x32 (\r
+ IN UINT64 Dividend,\r
+ IN UINT32 Divisor\r
);\r
\r
\r
/**\r
- Set the current CPU interrupt state.\r
+ Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
+ a 32-bit unsigned remainder.\r
\r
- Sets the current CPU interrupt state to the state specified by\r
- InterruptState. If InterruptState is TRUE, then interrupts are enabled. If\r
- InterruptState is FALSE, then interrupts are disabled. InterruptState is\r
- returned.\r
+ This function divides the 64-bit unsigned value Dividend by the 32-bit\r
+ unsigned value Divisor and generates a 32-bit remainder. This function\r
+ returns the 32-bit unsigned remainder.\r
\r
- @param InterruptState TRUE if interrupts should enabled. FALSE if\r
- interrupts should be disabled.\r
+ If Divisor is 0, then ASSERT().\r
\r
- @return InterruptState\r
+ @param Dividend A 64-bit unsigned value.\r
+ @param Divisor A 32-bit unsigned value.\r
+\r
+ @return Dividend % Divisor.\r
\r
**/\r
-BOOLEAN\r
+UINT32\r
EFIAPI\r
-SetInterruptState (\r
- IN BOOLEAN InterruptState\r
+ModU64x32 (\r
+ IN UINT64 Dividend,\r
+ IN UINT32 Divisor\r
);\r
\r
\r
-/**\r
- Requests CPU to pause for a short period of time.\r
+/**\r
+ Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates\r
+ a 64-bit unsigned result and an optional 32-bit unsigned remainder.\r
+\r
+ This function divides the 64-bit unsigned value Dividend by the 32-bit\r
+ unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder\r
+ is not NULL, then the 32-bit unsigned remainder is returned in Remainder.\r
+ This function returns the 64-bit unsigned quotient.\r
+\r
+ If Divisor is 0, then ASSERT().\r
+\r
+ @param Dividend A 64-bit unsigned value.\r
+ @param Divisor A 32-bit unsigned value.\r
+ @param Remainder A pointer to a 32-bit unsigned value. This parameter is\r
+ optional and may be NULL.\r
\r
- Requests CPU to pause for a short period of time. Typically used in MP\r
- systems to prevent memory starvation while waiting for a spin lock.\r
+ @return Dividend / Divisor.\r
\r
**/\r
-VOID\r
+UINT64\r
EFIAPI\r
-CpuPause (\r
- VOID\r
+DivU64x32Remainder (\r
+ IN UINT64 Dividend,\r
+ IN UINT32 Divisor,\r
+ OUT UINT32 *Remainder OPTIONAL\r
);\r
\r
\r
/**\r
- Transfers control to a function starting with a new stack.\r
+ Divides a 64-bit unsigned integer by a 64-bit unsigned integer and generates\r
+ a 64-bit unsigned result and an optional 64-bit unsigned remainder.\r
\r
- Transfers control to the function specified by EntryPoint using the\r
- new stack specified by NewStack and passing in the parameters specified\r
- by Context1 and Context2. Context1 and Context2 are optional and may\r
- be NULL. The function EntryPoint must never return. This function\r
- supports a variable number of arguments following the NewStack parameter.\r
- These additional arguments are ignored on IA-32, x64, and EBC architectures.\r
- Itanium processors expect one additional parameter of type VOID * that specifies\r
- the new backing store pointer.\r
+ This function divides the 64-bit unsigned value Dividend by the 64-bit\r
+ unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder\r
+ is not NULL, then the 64-bit unsigned remainder is returned in Remainder.\r
+ This function returns the 64-bit unsigned quotient.\r
\r
- If EntryPoint is NULL, then ASSERT().\r
- If NewStack is NULL, then ASSERT().\r
+ If Divisor is 0, then ASSERT().\r
\r
- @param EntryPoint A pointer to function to call with the new stack.\r
- @param Context1 A pointer to the context to pass into the EntryPoint\r
- function.\r
- @param Context2 A pointer to the context to pass into the EntryPoint\r
- function.\r
- @param NewStack A pointer to the new stack to use for the EntryPoint\r
- function.\r
- @param ... This variable argument list is ignored for IA-32, x64, and EBC architectures. \r
- For Itanium processors, this variable argument list is expected to contain \r
- a single parameter of type VOID * that specifies the new backing \r
- store pointer.\r
+ @param Dividend A 64-bit unsigned value.\r
+ @param Divisor A 64-bit unsigned value.\r
+ @param Remainder A pointer to a 64-bit unsigned value. This parameter is\r
+ optional and may be NULL.\r
\r
+ @return Dividend / Divisor.\r
\r
**/\r
-VOID\r
+UINT64\r
EFIAPI\r
-SwitchStack (\r
- IN SWITCH_STACK_ENTRY_POINT EntryPoint,\r
- IN VOID *Context1, OPTIONAL\r
- IN VOID *Context2, OPTIONAL\r
- IN VOID *NewStack,\r
- ...\r
+DivU64x64Remainder (\r
+ IN UINT64 Dividend,\r
+ IN UINT64 Divisor,\r
+ OUT UINT64 *Remainder OPTIONAL\r
);\r
\r
\r
/**\r
- Generates a breakpoint on the CPU.\r
+ Divides a 64-bit signed integer by a 64-bit signed integer and generates a\r
+ 64-bit signed result and a optional 64-bit signed remainder.\r
\r
- Generates a breakpoint on the CPU. The breakpoint must be implemented such\r
- that code can resume normal execution after the breakpoint.\r
+ This function divides the 64-bit signed value Dividend by the 64-bit signed\r
+ value Divisor and generates a 64-bit signed quotient. If Remainder is not\r
+ NULL, then the 64-bit signed remainder is returned in Remainder. This\r
+ function returns the 64-bit signed quotient.\r
\r
-**/\r
-VOID\r
-EFIAPI\r
-CpuBreakpoint (\r
- VOID\r
- );\r
+ It is the caller's responsibility to not call this function with a Divisor of 0.\r
+ If Divisor is 0, then the quotient and remainder should be assumed to be\r
+ the largest negative integer.\r
\r
+ If Divisor is 0, then ASSERT().\r
\r
-/**\r
- Executes an infinite loop.\r
+ @param Dividend A 64-bit signed value.\r
+ @param Divisor A 64-bit signed value.\r
+ @param Remainder A pointer to a 64-bit signed value. This parameter is\r
+ optional and may be NULL.\r
\r
- Forces the CPU to execute an infinite loop. A debugger may be used to skip\r
- past the loop and the code that follows the loop must execute properly. This\r
- implies that the infinite loop must not cause the code that follow it to be\r
- optimized away.\r
+ @return Dividend / Divisor.\r
\r
**/\r
-VOID\r
+INT64\r
EFIAPI\r
-CpuDeadLoop (\r
- VOID\r
+DivS64x64Remainder (\r
+ IN INT64 Dividend,\r
+ IN INT64 Divisor,\r
+ OUT INT64 *Remainder OPTIONAL\r
);\r
- \r
-#if defined (MDE_CPU_IPF)\r
\r
-/**\r
- Flush a range of cache lines in the cache coherency domain of the calling\r
- CPU.\r
\r
- Flushes the cache lines specified by Address and Length. If Address is not aligned \r
- on a cache line boundary, then entire cache line containing Address is flushed. \r
- If Address + Length is not aligned on a cache line boundary, then the entire cache \r
- line containing Address + Length - 1 is flushed. This function may choose to flush \r
- the entire cache if that is more efficient than flushing the specified range. If \r
- Length is 0, the no cache lines are flushed. Address is returned. \r
- This function is only available on Itanium processors.\r
+/**\r
+ Reads a 16-bit value from memory that may be unaligned.\r
\r
- If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT().\r
+ This function returns the 16-bit value pointed to by Buffer. The function\r
+ guarantees that the read operation does not produce an alignment fault.\r
\r
- @param Address The base address of the instruction lines to invalidate. If\r
- the CPU is in a physical addressing mode, then Address is a\r
- physical address. If the CPU is in a virtual addressing mode,\r
- then Address is a virtual address.\r
+ If the Buffer is NULL, then ASSERT().\r
\r
- @param Length The number of bytes to invalidate from the instruction cache.\r
+ @param Buffer The pointer to a 16-bit value that may be unaligned.\r
\r
- @return Address.\r
+ @return The 16-bit value read from Buffer.\r
\r
**/\r
-VOID *\r
+UINT16\r
EFIAPI\r
-AsmFlushCacheRange (\r
- IN VOID *Address,\r
- IN UINTN Length\r
+ReadUnaligned16 (\r
+ IN CONST UINT16 *Buffer\r
);\r
\r
\r
/**\r
- Executes a FC instruction\r
- Executes a FC instruction on the cache line specified by Address.\r
- The cache line size affected is at least 32-bytes (aligned on a 32-byte boundary).\r
- An implementation may flush a larger region. This function is only available on Itanium processors.\r
+ Writes a 16-bit value to memory that may be unaligned.\r
+\r
+ This function writes the 16-bit value specified by Value to Buffer. Value is\r
+ returned. The function guarantees that the write operation does not produce\r
+ an alignment fault.\r
\r
- @param Address The Address of cache line to be flushed.\r
+ If the Buffer is NULL, then ASSERT().\r
+\r
+ @param Buffer The pointer to a 16-bit value that may be unaligned.\r
+ @param Value 16-bit value to write to Buffer.\r
\r
- @return The address of FC instruction executed.\r
+ @return The 16-bit value to write to Buffer.\r
\r
**/\r
-UINT64\r
+UINT16\r
EFIAPI\r
-AsmFc (\r
- IN UINT64 Address\r
+WriteUnaligned16 (\r
+ OUT UINT16 *Buffer,\r
+ IN UINT16 Value\r
);\r
\r
\r
/**\r
- Executes a FC.I instruction.\r
- Executes a FC.I instruction on the cache line specified by Address.\r
- The cache line size affected is at least 32-bytes (aligned on a 32-byte boundary).\r
- An implementation may flush a larger region. This function is only available on Itanium processors.\r
+ Reads a 24-bit value from memory that may be unaligned.\r
+\r
+ This function returns the 24-bit value pointed to by Buffer. The function\r
+ guarantees that the read operation does not produce an alignment fault.\r
+\r
+ If the Buffer is NULL, then ASSERT().\r
\r
- @param Address The Address of cache line to be flushed.\r
+ @param Buffer The pointer to a 24-bit value that may be unaligned.\r
\r
- @return The address of FC.I instruction executed.\r
+ @return The 24-bit value read from Buffer.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmFci (\r
- IN UINT64 Address\r
+ReadUnaligned24 (\r
+ IN CONST UINT32 *Buffer\r
);\r
\r
\r
/**\r
- Reads the current value of a Processor Identifier Register (CPUID).\r
- \r
- Reads and returns the current value of Processor Identifier Register specified by Index. \r
- The Index of largest implemented CPUID (One less than the number of implemented CPUID\r
- registers) is determined by CPUID [3] bits {7:0}.\r
- No parameter checking is performed on Index. If the Index value is beyond the\r
- implemented CPUID register range, a Reserved Register/Field fault may occur. The caller\r
- must either guarantee that Index is valid, or the caller must set up fault handlers to\r
- catch the faults. This function is only available on Itanium processors.\r
+ Writes a 24-bit value to memory that may be unaligned.\r
+\r
+ This function writes the 24-bit value specified by Value to Buffer. Value is\r
+ returned. The function guarantees that the write operation does not produce\r
+ an alignment fault.\r
+\r
+ If the Buffer is NULL, then ASSERT().\r
\r
- @param Index The 8-bit Processor Identifier Register index to read.\r
+ @param Buffer The pointer to a 24-bit value that may be unaligned.\r
+ @param Value 24-bit value to write to Buffer.\r
\r
- @return The current value of Processor Identifier Register specified by Index.\r
+ @return The 24-bit value to write to Buffer.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmReadCpuid (\r
- IN UINT8 Index\r
+WriteUnaligned24 (\r
+ OUT UINT32 *Buffer,\r
+ IN UINT32 Value\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Processor Status Register (PSR).\r
- This function is only available on Itanium processors.\r
+ Reads a 32-bit value from memory that may be unaligned.\r
+\r
+ This function returns the 32-bit value pointed to by Buffer. The function\r
+ guarantees that the read operation does not produce an alignment fault.\r
+\r
+ If the Buffer is NULL, then ASSERT().\r
\r
- @return The current value of PSR.\r
+ @param Buffer The pointer to a 32-bit value that may be unaligned.\r
+\r
+ @return The 32-bit value read from Buffer.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmReadPsr (\r
- VOID\r
+ReadUnaligned32 (\r
+ IN CONST UINT32 *Buffer\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Processor Status Register (PSR).\r
+ Writes a 32-bit value to memory that may be unaligned.\r
\r
- No parameter checking is performed on Value. All bits of Value corresponding to\r
- reserved fields of PSR must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults. This function is only available on Itanium processors.\r
+ This function writes the 32-bit value specified by Value to Buffer. Value is\r
+ returned. The function guarantees that the write operation does not produce\r
+ an alignment fault.\r
+\r
+ If the Buffer is NULL, then ASSERT().\r
\r
- @param Value The 64-bit value to write to PSR.\r
+ @param Buffer The pointer to a 32-bit value that may be unaligned.\r
+ @param Value 32-bit value to write to Buffer.\r
\r
- @return The 64-bit value written to the PSR.\r
+ @return The 32-bit value to write to Buffer.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmWritePsr (\r
- IN UINT64 Value\r
+WriteUnaligned32 (\r
+ OUT UINT32 *Buffer,\r
+ IN UINT32 Value\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Kernel Register #0 (KR0).\r
- \r
- Reads and returns the current value of KR0. \r
- This function is only available on Itanium processors.\r
+ Reads a 64-bit value from memory that may be unaligned.\r
+\r
+ This function returns the 64-bit value pointed to by Buffer. The function\r
+ guarantees that the read operation does not produce an alignment fault.\r
+\r
+ If the Buffer is NULL, then ASSERT().\r
+\r
+ @param Buffer The pointer to a 64-bit value that may be unaligned.\r
\r
- @return The current value of KR0.\r
+ @return The 64-bit value read from Buffer.\r
\r
**/\r
UINT64\r
EFIAPI\r
-AsmReadKr0 (\r
- VOID\r
+ReadUnaligned64 (\r
+ IN CONST UINT64 *Buffer\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Kernel Register #1 (KR1).\r
+ Writes a 64-bit value to memory that may be unaligned.\r
+\r
+ This function writes the 64-bit value specified by Value to Buffer. Value is\r
+ returned. The function guarantees that the write operation does not produce\r
+ an alignment fault.\r
+\r
+ If the Buffer is NULL, then ASSERT().\r
\r
- Reads and returns the current value of KR1. \r
- This function is only available on Itanium processors.\r
+ @param Buffer The pointer to a 64-bit value that may be unaligned.\r
+ @param Value 64-bit value to write to Buffer.\r
\r
- @return The current value of KR1.\r
+ @return The 64-bit value to write to Buffer.\r
\r
**/\r
UINT64\r
EFIAPI\r
-AsmReadKr1 (\r
- VOID\r
+WriteUnaligned64 (\r
+ OUT UINT64 *Buffer,\r
+ IN UINT64 Value\r
);\r
\r
\r
+//\r
+// Bit Field Functions\r
+//\r
+\r
/**\r
- Reads the current value of 64-bit Kernel Register #2 (KR2).\r
+ Returns a bit field from an 8-bit value.\r
+\r
+ Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
+\r
+ If 8-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 7, then ASSERT().\r
+ If EndBit is greater than 7, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
\r
- Reads and returns the current value of KR2. \r
- This function is only available on Itanium processors.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..7.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..7.\r
\r
- @return The current value of KR2.\r
+ @return The bit field read.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadKr2 (\r
- VOID\r
+BitFieldRead8 (\r
+ IN UINT8 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Kernel Register #3 (KR3).\r
+ Writes a bit field to an 8-bit value, and returns the result.\r
+\r
+ Writes Value to the bit field specified by the StartBit and the EndBit in\r
+ Operand. All other bits in Operand are preserved. The new 8-bit value is\r
+ returned.\r
+\r
+ If 8-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 7, then ASSERT().\r
+ If EndBit is greater than 7, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- Reads and returns the current value of KR3. \r
- This function is only available on Itanium processors.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..7.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..7.\r
+ @param Value New value of the bit field.\r
\r
- @return The current value of KR3.\r
+ @return The new 8-bit value.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadKr3 (\r
- VOID\r
+BitFieldWrite8 (\r
+ IN UINT8 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT8 Value\r
);\r
\r
\r
-/**\r
- Reads the current value of 64-bit Kernel Register #4 (KR4).\r
+/**\r
+ Reads a bit field from an 8-bit value, performs a bitwise OR, and returns the\r
+ result.\r
+\r
+ Performs a bitwise OR between the bit field specified by StartBit\r
+ and EndBit in Operand and the value specified by OrData. All other bits in\r
+ Operand are preserved. The new 8-bit value is returned.\r
+\r
+ If 8-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 7, then ASSERT().\r
+ If EndBit is greater than 7, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..7.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..7.\r
+ @param OrData The value to OR with the read value from the value\r
\r
- Reads and returns the current value of KR4. \r
- This function is only available on Itanium processors.\r
- \r
- @return The current value of KR4.\r
+ @return The new 8-bit value.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadKr4 (\r
- VOID\r
+BitFieldOr8 (\r
+ IN UINT8 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT8 OrData\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Kernel Register #5 (KR5).\r
+ Reads a bit field from an 8-bit value, performs a bitwise AND, and returns\r
+ the result.\r
+\r
+ Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
+ in Operand and the value specified by AndData. All other bits in Operand are\r
+ preserved. The new 8-bit value is returned.\r
+\r
+ If 8-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 7, then ASSERT().\r
+ If EndBit is greater than 7, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- Reads and returns the current value of KR5. \r
- This function is only available on Itanium processors.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..7.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..7.\r
+ @param AndData The value to AND with the read value from the value.\r
\r
- @return The current value of KR5.\r
+ @return The new 8-bit value.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadKr5 (\r
- VOID\r
+BitFieldAnd8 (\r
+ IN UINT8 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT8 AndData\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Kernel Register #6 (KR6).\r
+ Reads a bit field from an 8-bit value, performs a bitwise AND followed by a\r
+ bitwise OR, and returns the result.\r
\r
- Reads and returns the current value of KR6. \r
- This function is only available on Itanium processors.\r
+ Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
+ in Operand and the value specified by AndData, followed by a bitwise\r
+ OR with value specified by OrData. All other bits in Operand are\r
+ preserved. The new 8-bit value is returned.\r
+\r
+ If 8-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 7, then ASSERT().\r
+ If EndBit is greater than 7, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..7.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..7.\r
+ @param AndData The value to AND with the read value from the value.\r
+ @param OrData The value to OR with the result of the AND operation.\r
\r
- @return The current value of KR6.\r
+ @return The new 8-bit value.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadKr6 (\r
- VOID\r
+BitFieldAndThenOr8 (\r
+ IN UINT8 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT8 AndData,\r
+ IN UINT8 OrData\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Kernel Register #7 (KR7).\r
+ Returns a bit field from a 16-bit value.\r
+\r
+ Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
+\r
+ If 16-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 15, then ASSERT().\r
+ If EndBit is greater than 15, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
\r
- Reads and returns the current value of KR7. \r
- This function is only available on Itanium processors.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..15.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..15.\r
\r
- @return The current value of KR7.\r
+ @return The bit field read.\r
\r
**/\r
-UINT64\r
+UINT16\r
EFIAPI\r
-AsmReadKr7 (\r
- VOID\r
+BitFieldRead16 (\r
+ IN UINT16 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Kernel Register #0 (KR0).\r
- \r
- Writes the current value of KR0. The 64-bit value written to \r
- the KR0 is returned. This function is only available on Itanium processors.\r
+ Writes a bit field to a 16-bit value, and returns the result.\r
\r
- @param Value The 64-bit value to write to KR0.\r
+ Writes Value to the bit field specified by the StartBit and the EndBit in\r
+ Operand. All other bits in Operand are preserved. The new 16-bit value is\r
+ returned.\r
+\r
+ If 16-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 15, then ASSERT().\r
+ If EndBit is greater than 15, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @return The 64-bit value written to the KR0.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..15.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..15.\r
+ @param Value New value of the bit field.\r
+\r
+ @return The new 16-bit value.\r
\r
**/\r
-UINT64\r
+UINT16\r
EFIAPI\r
-AsmWriteKr0 (\r
- IN UINT64 Value\r
+BitFieldWrite16 (\r
+ IN UINT16 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT16 Value\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Kernel Register #1 (KR1).\r
+ Reads a bit field from a 16-bit value, performs a bitwise OR, and returns the\r
+ result.\r
+\r
+ Performs a bitwise OR between the bit field specified by StartBit\r
+ and EndBit in Operand and the value specified by OrData. All other bits in\r
+ Operand are preserved. The new 16-bit value is returned.\r
\r
- Writes the current value of KR1. The 64-bit value written to \r
- the KR1 is returned. This function is only available on Itanium processors.\r
+ If 16-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 15, then ASSERT().\r
+ If EndBit is greater than 15, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to KR1.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..15.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..15.\r
+ @param OrData The value to OR with the read value from the value\r
\r
- @return The 64-bit value written to the KR1.\r
+ @return The new 16-bit value.\r
\r
**/\r
-UINT64\r
+UINT16\r
EFIAPI\r
-AsmWriteKr1 (\r
- IN UINT64 Value\r
+BitFieldOr16 (\r
+ IN UINT16 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT16 OrData\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Kernel Register #2 (KR2).\r
+ Reads a bit field from a 16-bit value, performs a bitwise AND, and returns\r
+ the result.\r
+\r
+ Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
+ in Operand and the value specified by AndData. All other bits in Operand are\r
+ preserved. The new 16-bit value is returned.\r
\r
- Writes the current value of KR2. The 64-bit value written to \r
- the KR2 is returned. This function is only available on Itanium processors.\r
+ If 16-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 15, then ASSERT().\r
+ If EndBit is greater than 15, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to KR2.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..15.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..15.\r
+ @param AndData The value to AND with the read value from the value\r
\r
- @return The 64-bit value written to the KR2.\r
+ @return The new 16-bit value.\r
\r
**/\r
-UINT64\r
+UINT16\r
EFIAPI\r
-AsmWriteKr2 (\r
- IN UINT64 Value\r
+BitFieldAnd16 (\r
+ IN UINT16 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT16 AndData\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Kernel Register #3 (KR3).\r
+ Reads a bit field from a 16-bit value, performs a bitwise AND followed by a\r
+ bitwise OR, and returns the result.\r
+\r
+ Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
+ in Operand and the value specified by AndData, followed by a bitwise\r
+ OR with value specified by OrData. All other bits in Operand are\r
+ preserved. The new 16-bit value is returned.\r
\r
- Writes the current value of KR3. The 64-bit value written to \r
- the KR3 is returned. This function is only available on Itanium processors.\r
+ If 16-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 15, then ASSERT().\r
+ If EndBit is greater than 15, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to KR3.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..15.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..15.\r
+ @param AndData The value to AND with the read value from the value.\r
+ @param OrData The value to OR with the result of the AND operation.\r
\r
- @return The 64-bit value written to the KR3.\r
+ @return The new 16-bit value.\r
\r
**/\r
-UINT64\r
+UINT16\r
EFIAPI\r
-AsmWriteKr3 (\r
- IN UINT64 Value\r
+BitFieldAndThenOr16 (\r
+ IN UINT16 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT16 AndData,\r
+ IN UINT16 OrData\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Kernel Register #4 (KR4).\r
+ Returns a bit field from a 32-bit value.\r
+\r
+ Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
\r
- Writes the current value of KR4. The 64-bit value written to \r
- the KR4 is returned. This function is only available on Itanium processors.\r
+ If 32-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 31, then ASSERT().\r
+ If EndBit is greater than 31, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to KR4.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..31.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..31.\r
\r
- @return The 64-bit value written to the KR4.\r
+ @return The bit field read.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmWriteKr4 (\r
- IN UINT64 Value\r
+BitFieldRead32 (\r
+ IN UINT32 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Kernel Register #5 (KR5).\r
+ Writes a bit field to a 32-bit value, and returns the result.\r
+\r
+ Writes Value to the bit field specified by the StartBit and the EndBit in\r
+ Operand. All other bits in Operand are preserved. The new 32-bit value is\r
+ returned.\r
\r
- Writes the current value of KR5. The 64-bit value written to \r
- the KR5 is returned. This function is only available on Itanium processors.\r
+ If 32-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 31, then ASSERT().\r
+ If EndBit is greater than 31, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to KR5.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..31.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..31.\r
+ @param Value New value of the bit field.\r
\r
- @return The 64-bit value written to the KR5.\r
+ @return The new 32-bit value.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmWriteKr5 (\r
- IN UINT64 Value\r
+BitFieldWrite32 (\r
+ IN UINT32 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT32 Value\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Kernel Register #6 (KR6).\r
+ Reads a bit field from a 32-bit value, performs a bitwise OR, and returns the\r
+ result.\r
+\r
+ Performs a bitwise OR between the bit field specified by StartBit\r
+ and EndBit in Operand and the value specified by OrData. All other bits in\r
+ Operand are preserved. The new 32-bit value is returned.\r
\r
- Writes the current value of KR6. The 64-bit value written to \r
- the KR6 is returned. This function is only available on Itanium processors.\r
+ If 32-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 31, then ASSERT().\r
+ If EndBit is greater than 31, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to KR6.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..31.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..31.\r
+ @param OrData The value to OR with the read value from the value.\r
\r
- @return The 64-bit value written to the KR6.\r
+ @return The new 32-bit value.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmWriteKr6 (\r
- IN UINT64 Value\r
+BitFieldOr32 (\r
+ IN UINT32 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT32 OrData\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Kernel Register #7 (KR7).\r
+ Reads a bit field from a 32-bit value, performs a bitwise AND, and returns\r
+ the result.\r
+\r
+ Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
+ in Operand and the value specified by AndData. All other bits in Operand are\r
+ preserved. The new 32-bit value is returned.\r
\r
- Writes the current value of KR7. The 64-bit value written to \r
- the KR7 is returned. This function is only available on Itanium processors.\r
+ If 32-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 31, then ASSERT().\r
+ If EndBit is greater than 31, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to KR7.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..31.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..31.\r
+ @param AndData The value to AND with the read value from the value\r
\r
- @return The 64-bit value written to the KR7.\r
+ @return The new 32-bit value.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmWriteKr7 (\r
- IN UINT64 Value\r
+BitFieldAnd32 (\r
+ IN UINT32 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT32 AndData\r
);\r
\r
\r
/**\r
- Reads the current value of Interval Timer Counter Register (ITC).\r
- \r
- Reads and returns the current value of ITC.\r
- This function is only available on Itanium processors.\r
-\r
- @return The current value of ITC.\r
+ Reads a bit field from a 32-bit value, performs a bitwise AND followed by a\r
+ bitwise OR, and returns the result.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadItc (\r
- VOID\r
- );\r
+ Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
+ in Operand and the value specified by AndData, followed by a bitwise\r
+ OR with value specified by OrData. All other bits in Operand are\r
+ preserved. The new 32-bit value is returned.\r
\r
+ If 32-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 31, then ASSERT().\r
+ If EndBit is greater than 31, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
-/**\r
- Reads the current value of Interval Timer Vector Register (ITV).\r
- \r
- Reads and returns the current value of ITV. \r
- This function is only available on Itanium processors.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..31.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..31.\r
+ @param AndData The value to AND with the read value from the value.\r
+ @param OrData The value to OR with the result of the AND operation.\r
\r
- @return The current value of ITV.\r
+ @return The new 32-bit value.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmReadItv (\r
- VOID\r
+BitFieldAndThenOr32 (\r
+ IN UINT32 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT32 AndData,\r
+ IN UINT32 OrData\r
);\r
\r
\r
/**\r
- Reads the current value of Interval Timer Match Register (ITM).\r
- \r
- Reads and returns the current value of ITM.\r
- This function is only available on Itanium processors.\r
-\r
- @return The current value of ITM.\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadItm (\r
- VOID\r
- );\r
+ Returns a bit field from a 64-bit value.\r
\r
+ Returns the bitfield specified by the StartBit and the EndBit from Operand.\r
\r
-/**\r
- Writes the current value of 64-bit Interval Timer Counter Register (ITC).\r
- \r
- Writes the current value of ITC. The 64-bit value written to the ITC is returned. \r
- This function is only available on Itanium processors.\r
+ If 64-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 63, then ASSERT().\r
+ If EndBit is greater than 63, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to ITC.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..63.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..63.\r
\r
- @return The 64-bit value written to the ITC.\r
+ @return The bit field read.\r
\r
**/\r
UINT64\r
EFIAPI\r
-AsmWriteItc (\r
- IN UINT64 Value\r
+BitFieldRead64 (\r
+ IN UINT64 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Interval Timer Match Register (ITM).\r
- \r
- Writes the current value of ITM. The 64-bit value written to the ITM is returned. \r
- This function is only available on Itanium processors.\r
-\r
- @param Value The 64-bit value to write to ITM.\r
-\r
- @return The 64-bit value written to the ITM.\r
-\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmWriteItm (\r
- IN UINT64 Value\r
- );\r
+ Writes a bit field to a 64-bit value, and returns the result.\r
\r
+ Writes Value to the bit field specified by the StartBit and the EndBit in\r
+ Operand. All other bits in Operand are preserved. The new 64-bit value is\r
+ returned.\r
\r
-/**\r
- Writes the current value of 64-bit Interval Timer Vector Register (ITV).\r
- \r
- Writes the current value of ITV. The 64-bit value written to the ITV is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding to\r
- reserved fields of ITV must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
+ If 64-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 63, then ASSERT().\r
+ If EndBit is greater than 63, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to ITV.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..63.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..63.\r
+ @param Value New value of the bit field.\r
\r
- @return The 64-bit value written to the ITV.\r
+ @return The new 64-bit value.\r
\r
**/\r
UINT64\r
EFIAPI\r
-AsmWriteItv (\r
- IN UINT64 Value\r
+BitFieldWrite64 (\r
+ IN UINT64 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT64 Value\r
);\r
\r
\r
/**\r
- Reads the current value of Default Control Register (DCR).\r
- \r
- Reads and returns the current value of DCR. This function is only available on Itanium processors.\r
+ Reads a bit field from a 64-bit value, performs a bitwise OR, and returns the\r
+ result.\r
\r
- @return The current value of DCR.\r
+ Performs a bitwise OR between the bit field specified by StartBit\r
+ and EndBit in Operand and the value specified by OrData. All other bits in\r
+ Operand are preserved. The new 64-bit value is returned.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadDcr (\r
- VOID\r
- );\r
+ If 64-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 63, then ASSERT().\r
+ If EndBit is greater than 63, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..63.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..63.\r
+ @param OrData The value to OR with the read value from the value\r
\r
-/**\r
- Reads the current value of Interruption Vector Address Register (IVA).\r
- \r
- Reads and returns the current value of IVA. This function is only available on Itanium processors.\r
+ @return The new 64-bit value.\r
\r
- @return The current value of IVA.\r
**/\r
UINT64\r
EFIAPI\r
-AsmReadIva (\r
- VOID\r
+BitFieldOr64 (\r
+ IN UINT64 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT64 OrData\r
);\r
\r
\r
/**\r
- Reads the current value of Page Table Address Register (PTA).\r
- \r
- Reads and returns the current value of PTA. This function is only available on Itanium processors.\r
-\r
- @return The current value of PTA.\r
-\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadPta (\r
- VOID\r
- );\r
+ Reads a bit field from a 64-bit value, performs a bitwise AND, and returns\r
+ the result.\r
\r
+ Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
+ in Operand and the value specified by AndData. All other bits in Operand are\r
+ preserved. The new 64-bit value is returned.\r
\r
-/**\r
- Writes the current value of 64-bit Default Control Register (DCR).\r
- \r
- Writes the current value of DCR. The 64-bit value written to the DCR is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding to\r
- reserved fields of DCR must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
+ If 64-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 63, then ASSERT().\r
+ If EndBit is greater than 63, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Value The 64-bit value to write to DCR.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..63.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..63.\r
+ @param AndData The value to AND with the read value from the value\r
\r
- @return The 64-bit value written to the DCR.\r
+ @return The new 64-bit value.\r
\r
**/\r
UINT64\r
EFIAPI\r
-AsmWriteDcr (\r
- IN UINT64 Value\r
+BitFieldAnd64 (\r
+ IN UINT64 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT64 AndData\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Interruption Vector Address Register (IVA).\r
- \r
- Writes the current value of IVA. The 64-bit value written to the IVA is returned. \r
- The size of vector table is 32 K bytes and is 32 K bytes aligned\r
- the low 15 bits of Value is ignored when written.\r
- This function is only available on Itanium processors.\r
-\r
- @param Value The 64-bit value to write to IVA.\r
-\r
- @return The 64-bit value written to the IVA.\r
+ Reads a bit field from a 64-bit value, performs a bitwise AND followed by a\r
+ bitwise OR, and returns the result.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmWriteIva (\r
- IN UINT64 Value\r
- );\r
+ Performs a bitwise AND between the bit field specified by StartBit and EndBit\r
+ in Operand and the value specified by AndData, followed by a bitwise\r
+ OR with value specified by OrData. All other bits in Operand are\r
+ preserved. The new 64-bit value is returned.\r
\r
+ If 64-bit operations are not supported, then ASSERT().\r
+ If StartBit is greater than 63, then ASSERT().\r
+ If EndBit is greater than 63, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
-/**\r
- Writes the current value of 64-bit Page Table Address Register (PTA).\r
- \r
- Writes the current value of PTA. The 64-bit value written to the PTA is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding to\r
- reserved fields of DCR must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..63.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..63.\r
+ @param AndData The value to AND with the read value from the value.\r
+ @param OrData The value to OR with the result of the AND operation.\r
\r
- @param Value The 64-bit value to write to PTA.\r
+ @return The new 64-bit value.\r
\r
- @return The 64-bit value written to the PTA.\r
**/\r
UINT64\r
EFIAPI\r
-AsmWritePta (\r
- IN UINT64 Value\r
+BitFieldAndThenOr64 (\r
+ IN UINT64 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit,\r
+ IN UINT64 AndData,\r
+ IN UINT64 OrData\r
);\r
\r
-\r
/**\r
- Reads the current value of Local Interrupt ID Register (LID).\r
- \r
- Reads and returns the current value of LID. This function is only available on Itanium processors.\r
+ Reads a bit field from a 32-bit value, counts and returns\r
+ the number of set bits.\r
\r
- @return The current value of LID.\r
-\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadLid (\r
- VOID\r
- );\r
+ Counts the number of set bits in the bit field specified by\r
+ StartBit and EndBit in Operand. The count is returned.\r
\r
+ If StartBit is greater than 31, then ASSERT().\r
+ If EndBit is greater than 31, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
\r
-/**\r
- Reads the current value of External Interrupt Vector Register (IVR).\r
- \r
- Reads and returns the current value of IVR. This function is only available on Itanium processors. \r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..31.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..31.\r
\r
- @return The current value of IVR.\r
+ @return The number of bits set between StartBit and EndBit.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadIvr (\r
- VOID\r
+BitFieldCountOnes32 (\r
+ IN UINT32 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit\r
);\r
\r
-\r
/**\r
- Reads the current value of Task Priority Register (TPR).\r
- \r
- Reads and returns the current value of TPR. This function is only available on Itanium processors. \r
-\r
- @return The current value of TPR.\r
+ Reads a bit field from a 64-bit value, counts and returns\r
+ the number of set bits.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadTpr (\r
- VOID\r
- );\r
+ Counts the number of set bits in the bit field specified by\r
+ StartBit and EndBit in Operand. The count is returned.\r
\r
+ If StartBit is greater than 63, then ASSERT().\r
+ If EndBit is greater than 63, then ASSERT().\r
+ If EndBit is less than StartBit, then ASSERT().\r
\r
-/**\r
- Reads the current value of External Interrupt Request Register #0 (IRR0).\r
- \r
- Reads and returns the current value of IRR0. This function is only available on Itanium processors. \r
+ @param Operand Operand on which to perform the bitfield operation.\r
+ @param StartBit The ordinal of the least significant bit in the bit field.\r
+ Range 0..63.\r
+ @param EndBit The ordinal of the most significant bit in the bit field.\r
+ Range 0..63.\r
\r
- @return The current value of IRR0.\r
+ @return The number of bits set between StartBit and EndBit.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadIrr0 (\r
- VOID\r
+BitFieldCountOnes64 (\r
+ IN UINT64 Operand,\r
+ IN UINTN StartBit,\r
+ IN UINTN EndBit\r
);\r
\r
+//\r
+// Base Library Checksum Functions\r
+//\r
\r
/**\r
- Reads the current value of External Interrupt Request Register #1 (IRR1).\r
- \r
- Reads and returns the current value of IRR1. This function is only available on Itanium processors. \r
-\r
- @return The current value of IRR1.\r
+ Returns the sum of all elements in a buffer in unit of UINT8.\r
+ During calculation, the carry bits are dropped.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadIrr1 (\r
- VOID\r
- );\r
+ This function calculates the sum of all elements in a buffer\r
+ in unit of UINT8. The carry bits in result of addition are dropped.\r
+ The result is returned as UINT8. If Length is Zero, then Zero is\r
+ returned.\r
\r
+ If Buffer is NULL, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
-/**\r
- Reads the current value of External Interrupt Request Register #2 (IRR2).\r
- \r
- Reads and returns the current value of IRR2. This function is only available on Itanium processors.\r
+ @param Buffer The pointer to the buffer to carry out the sum operation.\r
+ @param Length The size, in bytes, of Buffer.\r
\r
- @return The current value of IRR2.\r
+ @return Sum The sum of Buffer with carry bits dropped during additions.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadIrr2 (\r
- VOID\r
+CalculateSum8 (\r
+ IN CONST UINT8 *Buffer,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Reads the current value of External Interrupt Request Register #3 (IRR3).\r
- \r
- Reads and returns the current value of IRR3. This function is only available on Itanium processors. \r
-\r
- @return The current value of IRR3.\r
+ Returns the two's complement checksum of all elements in a buffer\r
+ of 8-bit values.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadIrr3 (\r
- VOID\r
- );\r
+ This function first calculates the sum of the 8-bit values in the\r
+ buffer specified by Buffer and Length. The carry bits in the result\r
+ of addition are dropped. Then, the two's complement of the sum is\r
+ returned. If Length is 0, then 0 is returned.\r
\r
+ If Buffer is NULL, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
-/**\r
- Reads the current value of Performance Monitor Vector Register (PMV).\r
- \r
- Reads and returns the current value of PMV. This function is only available on Itanium processors. \r
+ @param Buffer The pointer to the buffer to carry out the checksum operation.\r
+ @param Length The size, in bytes, of Buffer.\r
\r
- @return The current value of PMV.\r
+ @return Checksum The two's complement checksum of Buffer.\r
\r
**/\r
-UINT64\r
+UINT8\r
EFIAPI\r
-AsmReadPmv (\r
- VOID\r
+CalculateCheckSum8 (\r
+ IN CONST UINT8 *Buffer,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Reads the current value of Corrected Machine Check Vector Register (CMCV).\r
- \r
- Reads and returns the current value of CMCV. This function is only available on Itanium processors.\r
-\r
- @return The current value of CMCV.\r
+ Returns the sum of all elements in a buffer of 16-bit values. During\r
+ calculation, the carry bits are dropped.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadCmcv (\r
- VOID\r
- );\r
+ This function calculates the sum of the 16-bit values in the buffer\r
+ specified by Buffer and Length. The carry bits in result of addition are dropped.\r
+ The 16-bit result is returned. If Length is 0, then 0 is returned.\r
\r
+ If Buffer is NULL, then ASSERT().\r
+ If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r
+ If Length is not aligned on a 16-bit boundary, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
-/**\r
- Reads the current value of Local Redirection Register #0 (LRR0).\r
- \r
- Reads and returns the current value of LRR0. This function is only available on Itanium processors. \r
+ @param Buffer The pointer to the buffer to carry out the sum operation.\r
+ @param Length The size, in bytes, of Buffer.\r
\r
- @return The current value of LRR0.\r
+ @return Sum The sum of Buffer with carry bits dropped during additions.\r
\r
**/\r
-UINT64\r
+UINT16\r
EFIAPI\r
-AsmReadLrr0 (\r
- VOID\r
+CalculateSum16 (\r
+ IN CONST UINT16 *Buffer,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Reads the current value of Local Redirection Register #1 (LRR1).\r
- \r
- Reads and returns the current value of LRR1. This function is only available on Itanium processors.\r
-\r
- @return The current value of LRR1.\r
-\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmReadLrr1 (\r
- VOID\r
- );\r
+ Returns the two's complement checksum of all elements in a buffer of\r
+ 16-bit values.\r
\r
+ This function first calculates the sum of the 16-bit values in the buffer\r
+ specified by Buffer and Length. The carry bits in the result of addition\r
+ are dropped. Then, the two's complement of the sum is returned. If Length\r
+ is 0, then 0 is returned.\r
\r
-/**\r
- Writes the current value of 64-bit Page Local Interrupt ID Register (LID).\r
- \r
- Writes the current value of LID. The 64-bit value written to the LID is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding to\r
- reserved fields of LID must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
+ If Buffer is NULL, then ASSERT().\r
+ If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r
+ If Length is not aligned on a 16-bit boundary, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
- @param Value The 64-bit value to write to LID.\r
+ @param Buffer The pointer to the buffer to carry out the checksum operation.\r
+ @param Length The size, in bytes, of Buffer.\r
\r
- @return The 64-bit value written to the LID.\r
+ @return Checksum The two's complement checksum of Buffer.\r
\r
**/\r
-UINT64\r
+UINT16\r
EFIAPI\r
-AsmWriteLid (\r
- IN UINT64 Value\r
+CalculateCheckSum16 (\r
+ IN CONST UINT16 *Buffer,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Task Priority Register (TPR).\r
- \r
- Writes the current value of TPR. The 64-bit value written to the TPR is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding to\r
- reserved fields of TPR must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
-\r
- @param Value The 64-bit value to write to TPR.\r
+ Returns the sum of all elements in a buffer of 32-bit values. During\r
+ calculation, the carry bits are dropped.\r
\r
- @return The 64-bit value written to the TPR.\r
+ This function calculates the sum of the 32-bit values in the buffer\r
+ specified by Buffer and Length. The carry bits in result of addition are dropped.\r
+ The 32-bit result is returned. If Length is 0, then 0 is returned.\r
\r
-**/\r
-UINT64\r
-EFIAPI\r
-AsmWriteTpr (\r
- IN UINT64 Value\r
- );\r
+ If Buffer is NULL, then ASSERT().\r
+ If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
+ If Length is not aligned on a 32-bit boundary, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
+ @param Buffer The pointer to the buffer to carry out the sum operation.\r
+ @param Length The size, in bytes, of Buffer.\r
\r
-/**\r
- Performs a write operation on End OF External Interrupt Register (EOI).\r
- \r
- Writes a value of 0 to the EOI Register. This function is only available on Itanium processors.\r
+ @return Sum The sum of Buffer with carry bits dropped during additions.\r
\r
**/\r
-VOID\r
+UINT32\r
EFIAPI\r
-AsmWriteEoi (\r
- VOID\r
+CalculateSum32 (\r
+ IN CONST UINT32 *Buffer,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Performance Monitor Vector Register (PMV).\r
- \r
- Writes the current value of PMV. The 64-bit value written to the PMV is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding\r
- to reserved fields of PMV must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
+ Returns the two's complement checksum of all elements in a buffer of\r
+ 32-bit values.\r
+\r
+ This function first calculates the sum of the 32-bit values in the buffer\r
+ specified by Buffer and Length. The carry bits in the result of addition\r
+ are dropped. Then, the two's complement of the sum is returned. If Length\r
+ is 0, then 0 is returned.\r
+\r
+ If Buffer is NULL, then ASSERT().\r
+ If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
+ If Length is not aligned on a 32-bit boundary, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
- @param Value The 64-bit value to write to PMV.\r
+ @param Buffer The pointer to the buffer to carry out the checksum operation.\r
+ @param Length The size, in bytes, of Buffer.\r
\r
- @return The 64-bit value written to the PMV.\r
+ @return Checksum The two's complement checksum of Buffer.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmWritePmv (\r
- IN UINT64 Value\r
+CalculateCheckSum32 (\r
+ IN CONST UINT32 *Buffer,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Corrected Machine Check Vector Register (CMCV).\r
- \r
- Writes the current value of CMCV. The 64-bit value written to the CMCV is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding\r
- to reserved fields of CMCV must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
+ Returns the sum of all elements in a buffer of 64-bit values. During\r
+ calculation, the carry bits are dropped.\r
+\r
+ This function calculates the sum of the 64-bit values in the buffer\r
+ specified by Buffer and Length. The carry bits in result of addition are dropped.\r
+ The 64-bit result is returned. If Length is 0, then 0 is returned.\r
+\r
+ If Buffer is NULL, then ASSERT().\r
+ If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r
+ If Length is not aligned on a 64-bit boundary, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
- @param Value The 64-bit value to write to CMCV.\r
+ @param Buffer The pointer to the buffer to carry out the sum operation.\r
+ @param Length The size, in bytes, of Buffer.\r
\r
- @return The 64-bit value written to the CMCV.\r
+ @return Sum The sum of Buffer with carry bits dropped during additions.\r
\r
**/\r
UINT64\r
EFIAPI\r
-AsmWriteCmcv (\r
- IN UINT64 Value\r
+CalculateSum64 (\r
+ IN CONST UINT64 *Buffer,\r
+ IN UINTN Length\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Local Redirection Register #0 (LRR0).\r
- \r
- Writes the current value of LRR0. The 64-bit value written to the LRR0 is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding\r
- to reserved fields of LRR0 must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
+ Returns the two's complement checksum of all elements in a buffer of\r
+ 64-bit values.\r
\r
- @param Value The 64-bit value to write to LRR0.\r
+ This function first calculates the sum of the 64-bit values in the buffer\r
+ specified by Buffer and Length. The carry bits in the result of addition\r
+ are dropped. Then, the two's complement of the sum is returned. If Length\r
+ is 0, then 0 is returned.\r
+\r
+ If Buffer is NULL, then ASSERT().\r
+ If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r
+ If Length is not aligned on a 64-bit boundary, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+\r
+ @param Buffer The pointer to the buffer to carry out the checksum operation.\r
+ @param Length The size, in bytes, of Buffer.\r
\r
- @return The 64-bit value written to the LRR0.\r
+ @return Checksum The two's complement checksum of Buffer.\r
\r
**/\r
UINT64\r
EFIAPI\r
-AsmWriteLrr0 (\r
- IN UINT64 Value\r
+CalculateCheckSum64 (\r
+ IN CONST UINT64 *Buffer,\r
+ IN UINTN Length\r
);\r
\r
-\r
/**\r
- Writes the current value of 64-bit Local Redirection Register #1 (LRR1).\r
- \r
- Writes the current value of LRR1. The 64-bit value written to the LRR1 is returned. \r
- No parameter checking is performed on Value. All bits of Value corresponding\r
- to reserved fields of LRR1 must be 0 or a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Value is valid, or the caller must\r
- set up fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
+ Computes and returns a 32-bit CRC for a data buffer.\r
+ CRC32 value bases on ITU-T V.42.\r
\r
- @param Value The 64-bit value to write to LRR1.\r
+ If Buffer is NULL, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
- @return The 64-bit value written to the LRR1.\r
+ @param[in] Buffer A pointer to the buffer on which the 32-bit CRC is to be computed.\r
+ @param[in] Length The number of bytes in the buffer Data.\r
+\r
+ @retval Crc32 The 32-bit CRC was computed for the data buffer.\r
\r
**/\r
-UINT64\r
+UINT32\r
EFIAPI\r
-AsmWriteLrr1 (\r
- IN UINT64 Value\r
+CalculateCrc32(\r
+ IN VOID *Buffer,\r
+ IN UINTN Length\r
);\r
\r
+//\r
+// Base Library CPU Functions\r
+//\r
\r
/**\r
- Reads the current value of Instruction Breakpoint Register (IBR).\r
- \r
- The Instruction Breakpoint Registers are used in pairs. The even numbered\r
- registers contain breakpoint addresses, and the odd numbered registers contain\r
- breakpoint mask conditions. At least 4 instruction registers pairs are implemented\r
- on all processor models. Implemented registers are contiguous starting with\r
- register 0. No parameter checking is performed on Index, and if the Index value\r
- is beyond the implemented IBR register range, a Reserved Register/Field fault may\r
- occur. The caller must either guarantee that Index is valid, or the caller must\r
- set up fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
-\r
- @param Index The 8-bit Instruction Breakpoint Register index to read.\r
+ Function entry point used when a stack switch is requested with SwitchStack()\r
\r
- @return The current value of Instruction Breakpoint Register specified by Index.\r
+ @param Context1 Context1 parameter passed into SwitchStack().\r
+ @param Context2 Context2 parameter passed into SwitchStack().\r
\r
**/\r
-UINT64\r
-EFIAPI\r
-AsmReadIbr (\r
- IN UINT8 Index\r
+typedef\r
+VOID\r
+(EFIAPI *SWITCH_STACK_ENTRY_POINT)(\r
+ IN VOID *Context1, OPTIONAL\r
+ IN VOID *Context2 OPTIONAL\r
);\r
\r
\r
/**\r
- Reads the current value of Data Breakpoint Register (DBR).\r
-\r
- The Data Breakpoint Registers are used in pairs. The even numbered registers\r
- contain breakpoint addresses, and odd numbered registers contain breakpoint\r
- mask conditions. At least 4 data registers pairs are implemented on all processor\r
- models. Implemented registers are contiguous starting with register 0.\r
- No parameter checking is performed on Index. If the Index value is beyond\r
- the implemented DBR register range, a Reserved Register/Field fault may occur.\r
- The caller must either guarantee that Index is valid, or the caller must set up\r
- fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
-\r
- @param Index The 8-bit Data Breakpoint Register index to read.\r
+ Used to serialize load and store operations.\r
\r
- @return The current value of Data Breakpoint Register specified by Index.\r
+ All loads and stores that proceed calls to this function are guaranteed to be\r
+ globally visible when this function returns.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmReadDbr (\r
- IN UINT8 Index\r
+MemoryFence (\r
+ VOID\r
);\r
\r
\r
/**\r
- Reads the current value of Performance Monitor Configuration Register (PMC).\r
+ Saves the current CPU context that can be restored with a call to LongJump()\r
+ and returns 0.\r
+\r
+ Saves the current CPU context in the buffer specified by JumpBuffer and\r
+ returns 0. The initial call to SetJump() must always return 0. Subsequent\r
+ calls to LongJump() cause a non-zero value to be returned by SetJump().\r
+\r
+ If JumpBuffer is NULL, then ASSERT().\r
+ For Itanium processors, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
\r
- All processor implementations provide at least 4 performance counters\r
- (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter overflow\r
- status registers (PMC [0]... PMC [3]). Processor implementations may provide\r
- additional implementation-dependent PMC and PMD to increase the number of\r
- 'generic' performance counters (PMC/PMD pairs). The remainder of PMC and PMD\r
- register set is implementation dependent. No parameter checking is performed\r
- on Index. If the Index value is beyond the implemented PMC register range,\r
- zero value will be returned.\r
- This function is only available on Itanium processors.\r
+ NOTE: The structure BASE_LIBRARY_JUMP_BUFFER is CPU architecture specific.\r
+ The same structure must never be used for more than one CPU architecture context.\r
+ For example, a BASE_LIBRARY_JUMP_BUFFER allocated by an IA-32 module must never be used from an x64 module.\r
+ SetJump()/LongJump() is not currently supported for the EBC processor type.\r
\r
- @param Index The 8-bit Performance Monitor Configuration Register index to read.\r
+ @param JumpBuffer A pointer to CPU context buffer.\r
\r
- @return The current value of Performance Monitor Configuration Register\r
- specified by Index.\r
+ @retval 0 Indicates a return from SetJump().\r
\r
**/\r
-UINT64\r
+RETURNS_TWICE\r
+UINTN\r
EFIAPI\r
-AsmReadPmc (\r
- IN UINT8 Index\r
+SetJump (\r
+ OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer\r
);\r
\r
\r
/**\r
- Reads the current value of Performance Monitor Data Register (PMD).\r
+ Restores the CPU context that was saved with SetJump().\r
\r
- All processor implementations provide at least 4 performance counters\r
- (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter\r
- overflow status registers (PMC [0]... PMC [3]). Processor implementations may\r
- provide additional implementation-dependent PMC and PMD to increase the number\r
- of 'generic' performance counters (PMC/PMD pairs). The remainder of PMC and PMD\r
- register set is implementation dependent. No parameter checking is performed\r
- on Index. If the Index value is beyond the implemented PMD register range,\r
- zero value will be returned.\r
- This function is only available on Itanium processors.\r
+ Restores the CPU context from the buffer specified by JumpBuffer. This\r
+ function never returns to the caller. Instead is resumes execution based on\r
+ the state of JumpBuffer.\r
\r
- @param Index The 8-bit Performance Monitor Data Register index to read.\r
+ If JumpBuffer is NULL, then ASSERT().\r
+ For Itanium processors, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
+ If Value is 0, then ASSERT().\r
\r
- @return The current value of Performance Monitor Data Register specified by Index.\r
+ @param JumpBuffer A pointer to CPU context buffer.\r
+ @param Value The value to return when the SetJump() context is\r
+ restored and must be non-zero.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmReadPmd (\r
- IN UINT8 Index\r
+LongJump (\r
+ IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,\r
+ IN UINTN Value\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Instruction Breakpoint Register (IBR).\r
-\r
- Writes current value of Instruction Breakpoint Register specified by Index.\r
- The Instruction Breakpoint Registers are used in pairs. The even numbered\r
- registers contain breakpoint addresses, and odd numbered registers contain\r
- breakpoint mask conditions. At least 4 instruction registers pairs are implemented\r
- on all processor models. Implemented registers are contiguous starting with\r
- register 0. No parameter checking is performed on Index. If the Index value\r
- is beyond the implemented IBR register range, a Reserved Register/Field fault may\r
- occur. The caller must either guarantee that Index is valid, or the caller must\r
- set up fault handlers to catch the faults.\r
- This function is only available on Itanium processors.\r
-\r
- @param Index The 8-bit Instruction Breakpoint Register index to write.\r
- @param Value The 64-bit value to write to IBR.\r
-\r
- @return The 64-bit value written to the IBR.\r
+ Enables CPU interrupts.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmWriteIbr (\r
- IN UINT8 Index,\r
- IN UINT64 Value\r
+EnableInterrupts (\r
+ VOID\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Data Breakpoint Register (DBR).\r
-\r
- Writes current value of Data Breakpoint Register specified by Index.\r
- The Data Breakpoint Registers are used in pairs. The even numbered registers\r
- contain breakpoint addresses, and odd numbered registers contain breakpoint\r
- mask conditions. At least 4 data registers pairs are implemented on all processor\r
- models. Implemented registers are contiguous starting with register 0. No parameter\r
- checking is performed on Index. If the Index value is beyond the implemented\r
- DBR register range, a Reserved Register/Field fault may occur. The caller must\r
- either guarantee that Index is valid, or the caller must set up fault handlers to\r
- catch the faults.\r
- This function is only available on Itanium processors.\r
-\r
- @param Index The 8-bit Data Breakpoint Register index to write.\r
- @param Value The 64-bit value to write to DBR.\r
-\r
- @return The 64-bit value written to the DBR.\r
+ Disables CPU interrupts.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmWriteDbr (\r
- IN UINT8 Index,\r
- IN UINT64 Value\r
+DisableInterrupts (\r
+ VOID\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Performance Monitor Configuration Register (PMC).\r
-\r
- Writes current value of Performance Monitor Configuration Register specified by Index.\r
- All processor implementations provide at least 4 performance counters\r
- (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter overflow status\r
- registers (PMC [0]... PMC [3]). Processor implementations may provide additional\r
- implementation-dependent PMC and PMD to increase the number of 'generic' performance\r
- counters (PMC/PMD pairs). The remainder of PMC and PMD register set is implementation\r
- dependent. No parameter checking is performed on Index. If the Index value is\r
- beyond the implemented PMC register range, the write is ignored.\r
- This function is only available on Itanium processors.\r
-\r
- @param Index The 8-bit Performance Monitor Configuration Register index to write.\r
- @param Value The 64-bit value to write to PMC.\r
+ Disables CPU interrupts and returns the interrupt state prior to the disable\r
+ operation.\r
\r
- @return The 64-bit value written to the PMC.\r
+ @retval TRUE CPU interrupts were enabled on entry to this call.\r
+ @retval FALSE CPU interrupts were disabled on entry to this call.\r
\r
**/\r
-UINT64\r
+BOOLEAN\r
EFIAPI\r
-AsmWritePmc (\r
- IN UINT8 Index,\r
- IN UINT64 Value\r
+SaveAndDisableInterrupts (\r
+ VOID\r
);\r
\r
\r
/**\r
- Writes the current value of 64-bit Performance Monitor Data Register (PMD).\r
-\r
- Writes current value of Performance Monitor Data Register specified by Index.\r
- All processor implementations provide at least 4 performance counters\r
- (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter overflow\r
- status registers (PMC [0]... PMC [3]). Processor implementations may provide\r
- additional implementation-dependent PMC and PMD to increase the number of 'generic'\r
- performance counters (PMC/PMD pairs). The remainder of PMC and PMD register set\r
- is implementation dependent. No parameter checking is performed on Index. If the\r
- Index value is beyond the implemented PMD register range, the write is ignored.\r
- This function is only available on Itanium processors.\r
-\r
- @param Index The 8-bit Performance Monitor Data Register index to write.\r
- @param Value The 64-bit value to write to PMD.\r
-\r
- @return The 64-bit value written to the PMD.\r
+ Enables CPU interrupts for the smallest window required to capture any\r
+ pending interrupts.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmWritePmd (\r
- IN UINT8 Index,\r
- IN UINT64 Value\r
+EnableDisableInterrupts (\r
+ VOID\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Global Pointer (GP).\r
+ Retrieves the current CPU interrupt state.\r
\r
- Reads and returns the current value of GP.\r
- This function is only available on Itanium processors.\r
+ Returns TRUE if interrupts are currently enabled. Otherwise\r
+ returns FALSE.\r
\r
- @return The current value of GP.\r
+ @retval TRUE CPU interrupts are enabled.\r
+ @retval FALSE CPU interrupts are disabled.\r
\r
**/\r
-UINT64\r
+BOOLEAN\r
EFIAPI\r
-AsmReadGp (\r
+GetInterruptState (\r
VOID\r
);\r
\r
\r
/**\r
- Write the current value of 64-bit Global Pointer (GP).\r
+ Set the current CPU interrupt state.\r
\r
- Writes the current value of GP. The 64-bit value written to the GP is returned.\r
- No parameter checking is performed on Value.\r
- This function is only available on Itanium processors.\r
+ Sets the current CPU interrupt state to the state specified by\r
+ InterruptState. If InterruptState is TRUE, then interrupts are enabled. If\r
+ InterruptState is FALSE, then interrupts are disabled. InterruptState is\r
+ returned.\r
\r
- @param Value The 64-bit value to write to GP.\r
+ @param InterruptState TRUE if interrupts should enabled. FALSE if\r
+ interrupts should be disabled.\r
\r
- @return The 64-bit value written to the GP.\r
+ @return InterruptState\r
\r
**/\r
-UINT64\r
+BOOLEAN\r
EFIAPI\r
-AsmWriteGp (\r
- IN UINT64 Value\r
+SetInterruptState (\r
+ IN BOOLEAN InterruptState\r
);\r
\r
\r
/**\r
- Reads the current value of 64-bit Stack Pointer (SP).\r
-\r
- Reads and returns the current value of SP.\r
- This function is only available on Itanium processors.\r
+ Requests CPU to pause for a short period of time.\r
\r
- @return The current value of SP.\r
+ Requests CPU to pause for a short period of time. Typically used in MP\r
+ systems to prevent memory starvation while waiting for a spin lock.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmReadSp (\r
+CpuPause (\r
VOID\r
);\r
\r
\r
-///\r
-/// Valid Index value for AsmReadControlRegister()\r
-///\r
-#define IPF_CONTROL_REGISTER_DCR 0\r
-#define IPF_CONTROL_REGISTER_ITM 1\r
-#define IPF_CONTROL_REGISTER_IVA 2\r
-#define IPF_CONTROL_REGISTER_PTA 8\r
-#define IPF_CONTROL_REGISTER_IPSR 16\r
-#define IPF_CONTROL_REGISTER_ISR 17\r
-#define IPF_CONTROL_REGISTER_IIP 19\r
-#define IPF_CONTROL_REGISTER_IFA 20\r
-#define IPF_CONTROL_REGISTER_ITIR 21\r
-#define IPF_CONTROL_REGISTER_IIPA 22\r
-#define IPF_CONTROL_REGISTER_IFS 23\r
-#define IPF_CONTROL_REGISTER_IIM 24\r
-#define IPF_CONTROL_REGISTER_IHA 25\r
-#define IPF_CONTROL_REGISTER_LID 64\r
-#define IPF_CONTROL_REGISTER_IVR 65\r
-#define IPF_CONTROL_REGISTER_TPR 66\r
-#define IPF_CONTROL_REGISTER_EOI 67\r
-#define IPF_CONTROL_REGISTER_IRR0 68\r
-#define IPF_CONTROL_REGISTER_IRR1 69\r
-#define IPF_CONTROL_REGISTER_IRR2 70\r
-#define IPF_CONTROL_REGISTER_IRR3 71\r
-#define IPF_CONTROL_REGISTER_ITV 72\r
-#define IPF_CONTROL_REGISTER_PMV 73\r
-#define IPF_CONTROL_REGISTER_CMCV 74\r
-#define IPF_CONTROL_REGISTER_LRR0 80\r
-#define IPF_CONTROL_REGISTER_LRR1 81\r
-\r
-/**\r
- Reads a 64-bit control register.\r
-\r
- Reads and returns the control register specified by Index. The valid Index valued are defined\r
- above in "Related Definitions".\r
- If Index is invalid then 0xFFFFFFFFFFFFFFFF is returned. This function is only available on Itanium processors.\r
-\r
- @param Index The index of the control register to read.\r
-\r
- @return The control register specified by Index.\r
+/**\r
+ Transfers control to a function starting with a new stack.\r
+\r
+ Transfers control to the function specified by EntryPoint using the\r
+ new stack specified by NewStack and passing in the parameters specified\r
+ by Context1 and Context2. Context1 and Context2 are optional and may\r
+ be NULL. The function EntryPoint must never return. This function\r
+ supports a variable number of arguments following the NewStack parameter.\r
+ These additional arguments are ignored on IA-32, x64, and EBC architectures.\r
+ Itanium processors expect one additional parameter of type VOID * that specifies\r
+ the new backing store pointer.\r
+\r
+ If EntryPoint is NULL, then ASSERT().\r
+ If NewStack is NULL, then ASSERT().\r
+\r
+ @param EntryPoint A pointer to function to call with the new stack.\r
+ @param Context1 A pointer to the context to pass into the EntryPoint\r
+ function.\r
+ @param Context2 A pointer to the context to pass into the EntryPoint\r
+ function.\r
+ @param NewStack A pointer to the new stack to use for the EntryPoint\r
+ function.\r
+ @param ... This variable argument list is ignored for IA-32, x64, and\r
+ EBC architectures. For Itanium processors, this variable\r
+ argument list is expected to contain a single parameter of\r
+ type VOID * that specifies the new backing store pointer.\r
+\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmReadControlRegister (\r
- IN UINT64 Index\r
+SwitchStack (\r
+ IN SWITCH_STACK_ENTRY_POINT EntryPoint,\r
+ IN VOID *Context1, OPTIONAL\r
+ IN VOID *Context2, OPTIONAL\r
+ IN VOID *NewStack,\r
+ ...\r
);\r
\r
\r
-///\r
-/// Valid Index value for AsmReadApplicationRegister()\r
-///\r
-#define IPF_APPLICATION_REGISTER_K0 0\r
-#define IPF_APPLICATION_REGISTER_K1 1\r
-#define IPF_APPLICATION_REGISTER_K2 2\r
-#define IPF_APPLICATION_REGISTER_K3 3\r
-#define IPF_APPLICATION_REGISTER_K4 4\r
-#define IPF_APPLICATION_REGISTER_K5 5\r
-#define IPF_APPLICATION_REGISTER_K6 6\r
-#define IPF_APPLICATION_REGISTER_K7 7\r
-#define IPF_APPLICATION_REGISTER_RSC 16\r
-#define IPF_APPLICATION_REGISTER_BSP 17\r
-#define IPF_APPLICATION_REGISTER_BSPSTORE 18\r
-#define IPF_APPLICATION_REGISTER_RNAT 19\r
-#define IPF_APPLICATION_REGISTER_FCR 21\r
-#define IPF_APPLICATION_REGISTER_EFLAG 24\r
-#define IPF_APPLICATION_REGISTER_CSD 25\r
-#define IPF_APPLICATION_REGISTER_SSD 26\r
-#define IPF_APPLICATION_REGISTER_CFLG 27\r
-#define IPF_APPLICATION_REGISTER_FSR 28\r
-#define IPF_APPLICATION_REGISTER_FIR 29\r
-#define IPF_APPLICATION_REGISTER_FDR 30\r
-#define IPF_APPLICATION_REGISTER_CCV 32\r
-#define IPF_APPLICATION_REGISTER_UNAT 36\r
-#define IPF_APPLICATION_REGISTER_FPSR 40\r
-#define IPF_APPLICATION_REGISTER_ITC 44\r
-#define IPF_APPLICATION_REGISTER_PFS 64\r
-#define IPF_APPLICATION_REGISTER_LC 65\r
-#define IPF_APPLICATION_REGISTER_EC 66\r
-\r
-/**\r
- Reads a 64-bit application register.\r
-\r
- Reads and returns the application register specified by Index. The valid Index valued are defined\r
- above in "Related Definitions".\r
- If Index is invalid then 0xFFFFFFFFFFFFFFFF is returned. This function is only available on Itanium processors.\r
-\r
- @param Index The index of the application register to read.\r
-\r
- @return The application register specified by Index.\r
+/**\r
+ Generates a breakpoint on the CPU.\r
+\r
+ Generates a breakpoint on the CPU. The breakpoint must be implemented such\r
+ that code can resume normal execution after the breakpoint.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmReadApplicationRegister (\r
- IN UINT64 Index\r
+CpuBreakpoint (\r
+ VOID\r
);\r
\r
\r
/**\r
- Reads the current value of a Machine Specific Register (MSR).\r
-\r
- Reads and returns the current value of the Machine Specific Register specified by Index. No\r
- parameter checking is performed on Index, and if the Index value is beyond the implemented MSR\r
- register range, a Reserved Register/Field fault may occur. The caller must either guarantee that\r
- Index is valid, or the caller must set up fault handlers to catch the faults. This function is\r
- only available on Itanium processors.\r
-\r
- @param Index The 8-bit Machine Specific Register index to read.\r
+ Executes an infinite loop.\r
\r
- @return The current value of the Machine Specific Register specified by Index. \r
+ Forces the CPU to execute an infinite loop. A debugger may be used to skip\r
+ past the loop and the code that follows the loop must execute properly. This\r
+ implies that the infinite loop must not cause the code that follow it to be\r
+ optimized away.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmReadMsr (\r
- IN UINT8 Index \r
+CpuDeadLoop (\r
+ VOID\r
);\r
\r
\r
/**\r
- Writes the current value of a Machine Specific Register (MSR).\r
-\r
- Writes Value to the Machine Specific Register specified by Index. Value is returned. No\r
- parameter checking is performed on Index, and if the Index value is beyond the implemented MSR\r
- register range, a Reserved Register/Field fault may occur. The caller must either guarantee that\r
- Index is valid, or the caller must set up fault handlers to catch the faults. This function is\r
- only available on Itanium processors.\r
+ Uses as a barrier to stop speculative execution.\r
\r
- @param Index The 8-bit Machine Specific Register index to write.\r
- @param Value The 64-bit value to write to the Machine Specific Register.\r
-\r
- @return The 64-bit value to write to the Machine Specific Register. \r
+ Ensures that no later instruction will execute speculatively, until all prior\r
+ instructions have completed.\r
\r
**/\r
-UINT64\r
+VOID\r
EFIAPI\r
-AsmWriteMsr (\r
- IN UINT8 Index, \r
- IN UINT64 Value \r
+SpeculationBarrier (\r
+ VOID\r
);\r
\r
+#if defined (MDE_CPU_X64)\r
+//\r
+// The page size for the PVALIDATE instruction\r
+//\r
+typedef enum {\r
+ PvalidatePageSize4K = 0,\r
+ PvalidatePageSize2MB,\r
+} PVALIDATE_PAGE_SIZE;\r
+\r
+//\r
+// PVALIDATE Return Code.\r
+//\r
+#define PVALIDATE_RET_SUCCESS 0\r
+#define PVALIDATE_RET_FAIL_INPUT 1\r
+#define PVALIDATE_RET_SIZE_MISMATCH 6\r
+\r
+//\r
+// The PVALIDATE instruction did not make any changes to the RMP entry.\r
+//\r
+#define PVALIDATE_RET_NO_RMPUPDATE 255\r
\r
/**\r
- Determines if the CPU is currently executing in virtual, physical, or mixed mode.\r
+ Execute a PVALIDATE instruction to validate or to rescinds validation of a guest\r
+ page's RMP entry.\r
+\r
+ The instruction is available only when CPUID Fn8000_001F_EAX[SNP]=1.\r
\r
- Determines the current execution mode of the CPU.\r
- If the CPU is in virtual mode(PSR.RT=1, PSR.DT=1, PSR.IT=1), then 1 is returned.\r
- If the CPU is in physical mode(PSR.RT=0, PSR.DT=0, PSR.IT=0), then 0 is returned.\r
- If the CPU is not in physical mode or virtual mode, then it is in mixed mode,\r
- and -1 is returned.\r
- This function is only available on Itanium processors.\r
+ The function is available on X64.\r
\r
- @retval 1 The CPU is in virtual mode.\r
- @retval 0 The CPU is in physical mode.\r
- @retval -1 The CPU is in mixed mode.\r
+ @param[in] PageSize The page size to use.\r
+ @param[in] Validate If TRUE, validate the guest virtual address\r
+ otherwise invalidate the guest virtual address.\r
+ @param[in] Address The guest virtual address.\r
\r
+ @retval PVALIDATE_RET_SUCCESS The PVALIDATE instruction succeeded, and\r
+ updated the RMP entry.\r
+ @retval PVALIDATE_RET_NO_RMPUPDATE The PVALIDATE instruction succeeded, but\r
+ did not update the RMP entry.\r
+ @return Failure code from the PVALIDATE\r
+ instruction.\r
**/\r
-INT64\r
+UINT32\r
EFIAPI\r
-AsmCpuVirtual (\r
- VOID\r
+AsmPvalidate (\r
+ IN PVALIDATE_PAGE_SIZE PageSize,\r
+ IN BOOLEAN Validate,\r
+ IN PHYSICAL_ADDRESS Address\r
);\r
\r
+//\r
+// RDX settings for RMPADJUST\r
+//\r
+#define RMPADJUST_VMPL_MAX 3\r
+#define RMPADJUST_VMPL_MASK 0xFF\r
+#define RMPADJUST_VMPL_SHIFT 0\r
+#define RMPADJUST_PERMISSION_MASK_MASK 0xFF\r
+#define RMPADJUST_PERMISSION_MASK_SHIFT 8\r
+#define RMPADJUST_VMSA_PAGE_BIT BIT16\r
\r
/**\r
- Makes a PAL procedure call.\r
+ Adjusts the permissions of an SEV-SNP guest page.\r
\r
- This is a wrapper function to make a PAL procedure call. Based on the Index\r
- value this API will make static or stacked PAL call. The following table\r
- describes the usage of PAL Procedure Index Assignment. Architected procedures\r
- may be designated as required or optional. If a PAL procedure is specified\r
- as optional, a unique return code of 0xFFFFFFFFFFFFFFFF is returned in the\r
- Status field of the PAL_CALL_RETURN structure.\r
- This indicates that the procedure is not present in this PAL implementation.\r
- It is the caller's responsibility to check for this return code after calling\r
- any optional PAL procedure.\r
- No parameter checking is performed on the 5 input parameters, but there are\r
- some common rules that the caller should follow when making a PAL call. Any\r
- address passed to PAL as buffers for return parameters must be 8-byte aligned.\r
- Unaligned addresses may cause undefined results. For those parameters defined\r
- as reserved or some fields defined as reserved must be zero filled or the invalid\r
- argument return value may be returned or undefined result may occur during the\r
- execution of the procedure. If the PalEntryPoint does not point to a valid\r
- PAL entry point then the system behavior is undefined. This function is only\r
- available on Itanium processors.\r
+ Executes a RMPADJUST instruction with the register state specified by Rax,\r
+ Rcx, and Rdx. Returns Eax. This function is only available on X64.\r
\r
- @param PalEntryPoint The PAL procedure calls entry point.\r
- @param Index The PAL procedure Index number.\r
- @param Arg2 The 2nd parameter for PAL procedure calls.\r
- @param Arg3 The 3rd parameter for PAL procedure calls.\r
- @param Arg4 The 4th parameter for PAL procedure calls.\r
+ The instruction is available only when CPUID Fn8000_001F_EAX[SNP]=1.\r
\r
- @return structure returned from the PAL Call procedure, including the status and return value.\r
+ @param[in] Rax The value to load into RAX before executing the RMPADJUST\r
+ instruction.\r
+ @param[in] Rcx The value to load into RCX before executing the RMPADJUST\r
+ instruction.\r
+ @param[in] Rdx The value to load into RDX before executing the RMPADJUST\r
+ instruction.\r
\r
+ @return Eax\r
**/\r
-PAL_CALL_RETURN\r
+UINT32\r
EFIAPI\r
-AsmPalCall (\r
- IN UINT64 PalEntryPoint,\r
- IN UINT64 Index,\r
- IN UINT64 Arg2,\r
- IN UINT64 Arg3,\r
- IN UINT64 Arg4\r
+AsmRmpAdjust (\r
+ IN UINT64 Rax,\r
+ IN UINT64 Rcx,\r
+ IN UINT64 Rdx\r
);\r
#endif\r
\r
+\r
#if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)\r
///\r
-/// IA32 and x64 Specific Functions\r
-/// Byte packed structure for 16-bit Real Mode EFLAGS\r
+/// IA32 and x64 Specific Functions.\r
+/// Byte packed structure for 16-bit Real Mode EFLAGS.\r
///\r
typedef union {\r
struct {\r
- UINT32 CF:1; ///< Carry Flag\r
- UINT32 Reserved_0:1; ///< Reserved\r
- UINT32 PF:1; ///< Parity Flag\r
- UINT32 Reserved_1:1; ///< Reserved\r
- UINT32 AF:1; ///< Auxiliary Carry Flag\r
- UINT32 Reserved_2:1; ///< Reserved\r
- UINT32 ZF:1; ///< Zero Flag\r
- UINT32 SF:1; ///< Sign Flag\r
- UINT32 TF:1; ///< Trap Flag\r
- UINT32 IF:1; ///< Interrupt Enable Flag\r
- UINT32 DF:1; ///< Direction Flag\r
- UINT32 OF:1; ///< Overflow Flag\r
- UINT32 IOPL:2; ///< I/O Privilege Level\r
- UINT32 NT:1; ///< Nested Task\r
- UINT32 Reserved_3:1; ///< Reserved\r
+ UINT32 CF:1; ///< Carry Flag.\r
+ UINT32 Reserved_0:1; ///< Reserved.\r
+ UINT32 PF:1; ///< Parity Flag.\r
+ UINT32 Reserved_1:1; ///< Reserved.\r
+ UINT32 AF:1; ///< Auxiliary Carry Flag.\r
+ UINT32 Reserved_2:1; ///< Reserved.\r
+ UINT32 ZF:1; ///< Zero Flag.\r
+ UINT32 SF:1; ///< Sign Flag.\r
+ UINT32 TF:1; ///< Trap Flag.\r
+ UINT32 IF:1; ///< Interrupt Enable Flag.\r
+ UINT32 DF:1; ///< Direction Flag.\r
+ UINT32 OF:1; ///< Overflow Flag.\r
+ UINT32 IOPL:2; ///< I/O Privilege Level.\r
+ UINT32 NT:1; ///< Nested Task.\r
+ UINT32 Reserved_3:1; ///< Reserved.\r
} Bits;\r
UINT16 Uint16;\r
} IA32_FLAGS16;\r
\r
///\r
-/// Byte packed structure for EFLAGS/RFLAGS\r
-/// 32-bits on IA-32\r
-/// 64-bits on x64. The upper 32-bits on x64 are reserved\r
+/// Byte packed structure for EFLAGS/RFLAGS.\r
+/// 32-bits on IA-32.\r
+/// 64-bits on x64. The upper 32-bits on x64 are reserved.\r
///\r
typedef union {\r
struct {\r
- UINT32 CF:1; ///< Carry Flag\r
- UINT32 Reserved_0:1; ///< Reserved\r
- UINT32 PF:1; ///< Parity Flag\r
- UINT32 Reserved_1:1; ///< Reserved\r
- UINT32 AF:1; ///< Auxiliary Carry Flag\r
- UINT32 Reserved_2:1; ///< Reserved\r
- UINT32 ZF:1; ///< Zero Flag\r
- UINT32 SF:1; ///< Sign Flag\r
- UINT32 TF:1; ///< Trap Flag\r
- UINT32 IF:1; ///< Interrupt Enable Flag\r
- UINT32 DF:1; ///< Direction Flag\r
- UINT32 OF:1; ///< Overflow Flag\r
- UINT32 IOPL:2; ///< I/O Privilege Level\r
- UINT32 NT:1; ///< Nested Task\r
- UINT32 Reserved_3:1; ///< Reserved\r
- UINT32 RF:1; ///< Resume Flag\r
- UINT32 VM:1; ///< Virtual 8086 Mode\r
- UINT32 AC:1; ///< Alignment Check\r
- UINT32 VIF:1; ///< Virtual Interrupt Flag\r
- UINT32 VIP:1; ///< Virtual Interrupt Pending\r
- UINT32 ID:1; ///< ID Flag\r
- UINT32 Reserved_4:10; ///< Reserved\r
+ UINT32 CF:1; ///< Carry Flag.\r
+ UINT32 Reserved_0:1; ///< Reserved.\r
+ UINT32 PF:1; ///< Parity Flag.\r
+ UINT32 Reserved_1:1; ///< Reserved.\r
+ UINT32 AF:1; ///< Auxiliary Carry Flag.\r
+ UINT32 Reserved_2:1; ///< Reserved.\r
+ UINT32 ZF:1; ///< Zero Flag.\r
+ UINT32 SF:1; ///< Sign Flag.\r
+ UINT32 TF:1; ///< Trap Flag.\r
+ UINT32 IF:1; ///< Interrupt Enable Flag.\r
+ UINT32 DF:1; ///< Direction Flag.\r
+ UINT32 OF:1; ///< Overflow Flag.\r
+ UINT32 IOPL:2; ///< I/O Privilege Level.\r
+ UINT32 NT:1; ///< Nested Task.\r
+ UINT32 Reserved_3:1; ///< Reserved.\r
+ UINT32 RF:1; ///< Resume Flag.\r
+ UINT32 VM:1; ///< Virtual 8086 Mode.\r
+ UINT32 AC:1; ///< Alignment Check.\r
+ UINT32 VIF:1; ///< Virtual Interrupt Flag.\r
+ UINT32 VIP:1; ///< Virtual Interrupt Pending.\r
+ UINT32 ID:1; ///< ID Flag.\r
+ UINT32 Reserved_4:10; ///< Reserved.\r
} Bits;\r
UINTN UintN;\r
} IA32_EFLAGS32;\r
\r
///\r
-/// Byte packed structure for Control Register 0 (CR0)\r
-/// 32-bits on IA-32\r
-/// 64-bits on x64. The upper 32-bits on x64 are reserved\r
+/// Byte packed structure for Control Register 0 (CR0).\r
+/// 32-bits on IA-32.\r
+/// 64-bits on x64. The upper 32-bits on x64 are reserved.\r
///\r
typedef union {\r
struct {\r
- UINT32 PE:1; ///< Protection Enable\r
- UINT32 MP:1; ///< Monitor Coprocessor\r
- UINT32 EM:1; ///< Emulation\r
- UINT32 TS:1; ///< Task Switched\r
- UINT32 ET:1; ///< Extension Type\r
- UINT32 NE:1; ///< Numeric Error\r
- UINT32 Reserved_0:10; ///< Reserved\r
- UINT32 WP:1; ///< Write Protect\r
- UINT32 Reserved_1:1; ///< Reserved\r
- UINT32 AM:1; ///< Alignment Mask\r
- UINT32 Reserved_2:10; ///< Reserved\r
- UINT32 NW:1; ///< Mot Write-through\r
- UINT32 CD:1; ///< Cache Disable\r
- UINT32 PG:1; ///< Paging\r
+ UINT32 PE:1; ///< Protection Enable.\r
+ UINT32 MP:1; ///< Monitor Coprocessor.\r
+ UINT32 EM:1; ///< Emulation.\r
+ UINT32 TS:1; ///< Task Switched.\r
+ UINT32 ET:1; ///< Extension Type.\r
+ UINT32 NE:1; ///< Numeric Error.\r
+ UINT32 Reserved_0:10; ///< Reserved.\r
+ UINT32 WP:1; ///< Write Protect.\r
+ UINT32 Reserved_1:1; ///< Reserved.\r
+ UINT32 AM:1; ///< Alignment Mask.\r
+ UINT32 Reserved_2:10; ///< Reserved.\r
+ UINT32 NW:1; ///< Mot Write-through.\r
+ UINT32 CD:1; ///< Cache Disable.\r
+ UINT32 PG:1; ///< Paging.\r
} Bits;\r
UINTN UintN;\r
} IA32_CR0;\r
\r
///\r
-/// Byte packed structure for Control Register 4 (CR4)\r
-/// 32-bits on IA-32\r
-/// 64-bits on x64. The upper 32-bits on x64 are reserved\r
+/// Byte packed structure for Control Register 4 (CR4).\r
+/// 32-bits on IA-32.\r
+/// 64-bits on x64. The upper 32-bits on x64 are reserved.\r
///\r
typedef union {\r
struct {\r
- UINT32 VME:1; ///< Virtual-8086 Mode Extensions\r
- UINT32 PVI:1; ///< Protected-Mode Virtual Interrupts\r
- UINT32 TSD:1; ///< Time Stamp Disable\r
- UINT32 DE:1; ///< Debugging Extensions\r
- UINT32 PSE:1; ///< Page Size Extensions\r
- UINT32 PAE:1; ///< Physical Address Extension\r
- UINT32 MCE:1; ///< Machine Check Enable\r
- UINT32 PGE:1; ///< Page Global Enable\r
+ UINT32 VME:1; ///< Virtual-8086 Mode Extensions.\r
+ UINT32 PVI:1; ///< Protected-Mode Virtual Interrupts.\r
+ UINT32 TSD:1; ///< Time Stamp Disable.\r
+ UINT32 DE:1; ///< Debugging Extensions.\r
+ UINT32 PSE:1; ///< Page Size Extensions.\r
+ UINT32 PAE:1; ///< Physical Address Extension.\r
+ UINT32 MCE:1; ///< Machine Check Enable.\r
+ UINT32 PGE:1; ///< Page Global Enable.\r
UINT32 PCE:1; ///< Performance Monitoring Counter\r
- ///< Enable\r
+ ///< Enable.\r
UINT32 OSFXSR:1; ///< Operating System Support for\r
///< FXSAVE and FXRSTOR instructions\r
UINT32 OSXMMEXCPT:1; ///< Operating System Support for\r
///< Unmasked SIMD Floating Point\r
- ///< Exceptions\r
- UINT32 Reserved_0:2; ///< Reserved\r
- UINT32 VMXE:1; ///< VMX Enable\r
- UINT32 Reserved_1:18; ///< Reserved\r
+ ///< Exceptions.\r
+ UINT32 UMIP:1; ///< User-Mode Instruction Prevention.\r
+ UINT32 LA57:1; ///< Linear Address 57bit.\r
+ UINT32 VMXE:1; ///< VMX Enable.\r
+ UINT32 SMXE:1; ///< SMX Enable.\r
+ UINT32 Reserved_3:1; ///< Reserved.\r
+ UINT32 FSGSBASE:1; ///< FSGSBASE Enable.\r
+ UINT32 PCIDE:1; ///< PCID Enable.\r
+ UINT32 OSXSAVE:1; ///< XSAVE and Processor Extended States Enable.\r
+ UINT32 Reserved_4:1; ///< Reserved.\r
+ UINT32 SMEP:1; ///< SMEP Enable.\r
+ UINT32 SMAP:1; ///< SMAP Enable.\r
+ UINT32 PKE:1; ///< Protection-Key Enable.\r
+ UINT32 Reserved_5:9; ///< Reserved.\r
} Bits;\r
UINTN UintN;\r
} IA32_CR4;\r
\r
///\r
-/// Byte packed structure for an IDTR, GDTR, LDTR descriptor\r
+/// Byte packed structure for a segment descriptor in a GDT/LDT.\r
+///\r
+typedef union {\r
+ struct {\r
+ UINT32 LimitLow:16;\r
+ UINT32 BaseLow:16;\r
+ UINT32 BaseMid:8;\r
+ UINT32 Type:4;\r
+ UINT32 S:1;\r
+ UINT32 DPL:2;\r
+ UINT32 P:1;\r
+ UINT32 LimitHigh:4;\r
+ UINT32 AVL:1;\r
+ UINT32 L:1;\r
+ UINT32 DB:1;\r
+ UINT32 G:1;\r
+ UINT32 BaseHigh:8;\r
+ } Bits;\r
+ UINT64 Uint64;\r
+} IA32_SEGMENT_DESCRIPTOR;\r
+\r
+///\r
+/// Byte packed structure for an IDTR, GDTR, LDTR descriptor.\r
///\r
#pragma pack (1)\r
typedef struct {\r
#define IA32_IDT_GATE_TYPE_INTERRUPT_32 0x8E\r
#define IA32_IDT_GATE_TYPE_TRAP_32 0x8F\r
\r
+#define IA32_GDT_TYPE_TSS 0x9\r
+#define IA32_GDT_ALIGNMENT 8\r
\r
#if defined (MDE_CPU_IA32)\r
///\r
-/// Byte packed structure for an IA-32 Interrupt Gate Descriptor\r
+/// Byte packed structure for an IA-32 Interrupt Gate Descriptor.\r
///\r
typedef union {\r
struct {\r
- UINT32 OffsetLow:16; ///< Offset bits 15..0\r
- UINT32 Selector:16; ///< Selector\r
- UINT32 Reserved_0:8; ///< Reserved\r
- UINT32 GateType:8; ///< Gate Type. See #defines above\r
- UINT32 OffsetHigh:16; ///< Offset bits 31..16\r
+ UINT32 OffsetLow:16; ///< Offset bits 15..0.\r
+ UINT32 Selector:16; ///< Selector.\r
+ UINT32 Reserved_0:8; ///< Reserved.\r
+ UINT32 GateType:8; ///< Gate Type. See #defines above.\r
+ UINT32 OffsetHigh:16; ///< Offset bits 31..16.\r
} Bits;\r
UINT64 Uint64;\r
} IA32_IDT_GATE_DESCRIPTOR;\r
\r
-#endif\r
+#pragma pack (1)\r
+//\r
+// IA32 Task-State Segment Definition\r
+//\r
+typedef struct {\r
+ UINT16 PreviousTaskLink;\r
+ UINT16 Reserved_2;\r
+ UINT32 ESP0;\r
+ UINT16 SS0;\r
+ UINT16 Reserved_10;\r
+ UINT32 ESP1;\r
+ UINT16 SS1;\r
+ UINT16 Reserved_18;\r
+ UINT32 ESP2;\r
+ UINT16 SS2;\r
+ UINT16 Reserved_26;\r
+ UINT32 CR3;\r
+ UINT32 EIP;\r
+ UINT32 EFLAGS;\r
+ UINT32 EAX;\r
+ UINT32 ECX;\r
+ UINT32 EDX;\r
+ UINT32 EBX;\r
+ UINT32 ESP;\r
+ UINT32 EBP;\r
+ UINT32 ESI;\r
+ UINT32 EDI;\r
+ UINT16 ES;\r
+ UINT16 Reserved_74;\r
+ UINT16 CS;\r
+ UINT16 Reserved_78;\r
+ UINT16 SS;\r
+ UINT16 Reserved_82;\r
+ UINT16 DS;\r
+ UINT16 Reserved_86;\r
+ UINT16 FS;\r
+ UINT16 Reserved_90;\r
+ UINT16 GS;\r
+ UINT16 Reserved_94;\r
+ UINT16 LDTSegmentSelector;\r
+ UINT16 Reserved_98;\r
+ UINT16 T;\r
+ UINT16 IOMapBaseAddress;\r
+} IA32_TASK_STATE_SEGMENT;\r
+\r
+typedef union {\r
+ struct {\r
+ UINT32 LimitLow:16; ///< Segment Limit 15..00\r
+ UINT32 BaseLow:16; ///< Base Address 15..00\r
+ UINT32 BaseMid:8; ///< Base Address 23..16\r
+ UINT32 Type:4; ///< Type (1 0 B 1)\r
+ UINT32 Reserved_43:1; ///< 0\r
+ UINT32 DPL:2; ///< Descriptor Privilege Level\r
+ UINT32 P:1; ///< Segment Present\r
+ UINT32 LimitHigh:4; ///< Segment Limit 19..16\r
+ UINT32 AVL:1; ///< Available for use by system software\r
+ UINT32 Reserved_52:2; ///< 0 0\r
+ UINT32 G:1; ///< Granularity\r
+ UINT32 BaseHigh:8; ///< Base Address 31..24\r
+ } Bits;\r
+ UINT64 Uint64;\r
+} IA32_TSS_DESCRIPTOR;\r
+#pragma pack ()\r
+\r
+#endif // defined (MDE_CPU_IA32)\r
\r
#if defined (MDE_CPU_X64)\r
///\r
-/// Byte packed structure for an x64 Interrupt Gate Descriptor\r
+/// Byte packed structure for an x64 Interrupt Gate Descriptor.\r
///\r
typedef union {\r
struct {\r
- UINT32 OffsetLow:16; ///< Offset bits 15..0\r
- UINT32 Selector:16; ///< Selector\r
- UINT32 Reserved_0:8; ///< Reserved\r
- UINT32 GateType:8; ///< Gate Type. See #defines above\r
- UINT32 OffsetHigh:16; ///< Offset bits 31..16\r
- UINT32 OffsetUpper:32; ///< Offset bits 63..32\r
- UINT32 Reserved_1:32; ///< Reserved\r
+ UINT32 OffsetLow:16; ///< Offset bits 15..0.\r
+ UINT32 Selector:16; ///< Selector.\r
+ UINT32 Reserved_0:8; ///< Reserved.\r
+ UINT32 GateType:8; ///< Gate Type. See #defines above.\r
+ UINT32 OffsetHigh:16; ///< Offset bits 31..16.\r
+ UINT32 OffsetUpper:32; ///< Offset bits 63..32.\r
+ UINT32 Reserved_1:32; ///< Reserved.\r
} Bits;\r
struct {\r
UINT64 Uint64;\r
UINT64 Uint64_1;\r
- } Uint128; \r
+ } Uint128;\r
} IA32_IDT_GATE_DESCRIPTOR;\r
\r
-#endif\r
+#pragma pack (1)\r
+//\r
+// IA32 Task-State Segment Definition\r
+//\r
+typedef struct {\r
+ UINT32 Reserved_0;\r
+ UINT64 RSP0;\r
+ UINT64 RSP1;\r
+ UINT64 RSP2;\r
+ UINT64 Reserved_28;\r
+ UINT64 IST[7];\r
+ UINT64 Reserved_92;\r
+ UINT16 Reserved_100;\r
+ UINT16 IOMapBaseAddress;\r
+} IA32_TASK_STATE_SEGMENT;\r
+\r
+typedef union {\r
+ struct {\r
+ UINT32 LimitLow:16; ///< Segment Limit 15..00\r
+ UINT32 BaseLow:16; ///< Base Address 15..00\r
+ UINT32 BaseMidl:8; ///< Base Address 23..16\r
+ UINT32 Type:4; ///< Type (1 0 B 1)\r
+ UINT32 Reserved_43:1; ///< 0\r
+ UINT32 DPL:2; ///< Descriptor Privilege Level\r
+ UINT32 P:1; ///< Segment Present\r
+ UINT32 LimitHigh:4; ///< Segment Limit 19..16\r
+ UINT32 AVL:1; ///< Available for use by system software\r
+ UINT32 Reserved_52:2; ///< 0 0\r
+ UINT32 G:1; ///< Granularity\r
+ UINT32 BaseMidh:8; ///< Base Address 31..24\r
+ UINT32 BaseHigh:32; ///< Base Address 63..32\r
+ UINT32 Reserved_96:32; ///< Reserved\r
+ } Bits;\r
+ struct {\r
+ UINT64 Uint64;\r
+ UINT64 Uint64_1;\r
+ } Uint128;\r
+} IA32_TSS_DESCRIPTOR;\r
+#pragma pack ()\r
+\r
+#endif // defined (MDE_CPU_X64)\r
\r
///\r
-/// Byte packed structure for an FP/SSE/SSE2 context\r
+/// Byte packed structure for an FP/SSE/SSE2 context.\r
///\r
typedef struct {\r
UINT8 Buffer[512];\r
} IA32_FX_BUFFER;\r
\r
///\r
-/// Structures for the 16-bit real mode thunks\r
+/// Structures for the 16-bit real mode thunks.\r
///\r
typedef struct {\r
UINT32 Reserved1;\r
} IA32_REGISTER_SET;\r
\r
///\r
-/// Byte packed structure for an 16-bit real mode thunks\r
+/// Byte packed structure for an 16-bit real mode thunks.\r
///\r
typedef struct {\r
IA32_REGISTER_SET *RealModeState;\r
#define THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 0x00000002\r
#define THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL 0x00000004\r
\r
+///\r
+/// Type definition for representing labels in NASM source code that allow for\r
+/// the patching of immediate operands of IA32 and X64 instructions.\r
+///\r
+/// While the type is technically defined as a function type (note: not a\r
+/// pointer-to-function type), such labels in NASM source code never stand for\r
+/// actual functions, and identifiers declared with this function type should\r
+/// never be called. This is also why the EFIAPI calling convention specifier\r
+/// is missing from the typedef, and why the typedef does not follow the usual\r
+/// edk2 coding style for function (or pointer-to-function) typedefs. The VOID\r
+/// return type and the VOID argument list are merely artifacts.\r
+///\r
+typedef VOID (X86_ASSEMBLY_PATCH_LABEL) (VOID);\r
+\r
/**\r
Retrieves CPUID information.\r
\r
\r
@param Index The 32-bit value to load into EAX prior to invoking the CPUID\r
instruction.\r
- @param Eax Pointer to the 32-bit EAX value returned by the CPUID\r
+ @param Eax The pointer to the 32-bit EAX value returned by the CPUID\r
instruction. This is an optional parameter that may be NULL.\r
- @param Ebx Pointer to the 32-bit EBX value returned by the CPUID\r
+ @param Ebx The pointer to the 32-bit EBX value returned by the CPUID\r
instruction. This is an optional parameter that may be NULL.\r
- @param Ecx Pointer to the 32-bit ECX value returned by the CPUID\r
+ @param Ecx The pointer to the 32-bit ECX value returned by the CPUID\r
instruction. This is an optional parameter that may be NULL.\r
- @param Edx Pointer to the 32-bit EDX value returned by the CPUID\r
+ @param Edx The pointer to the 32-bit EDX value returned by the CPUID\r
instruction. This is an optional parameter that may be NULL.\r
\r
@return Index.\r
CPUID instruction.\r
@param SubIndex The 32-bit value to load into ECX prior to invoking the\r
CPUID instruction.\r
- @param Eax Pointer to the 32-bit EAX value returned by the CPUID\r
+ @param Eax The pointer to the 32-bit EAX value returned by the CPUID\r
instruction. This is an optional parameter that may be\r
NULL.\r
- @param Ebx Pointer to the 32-bit EBX value returned by the CPUID\r
+ @param Ebx The pointer to the 32-bit EBX value returned by the CPUID\r
instruction. This is an optional parameter that may be\r
NULL.\r
- @param Ecx Pointer to the 32-bit ECX value returned by the CPUID\r
+ @param Ecx The pointer to the 32-bit ECX value returned by the CPUID\r
instruction. This is an optional parameter that may be\r
NULL.\r
- @param Edx Pointer to the 32-bit EDX value returned by the CPUID\r
+ @param Edx The pointer to the 32-bit EDX value returned by the CPUID\r
instruction. This is an optional parameter that may be\r
NULL.\r
\r
Writes Value to a bit field in the lower 32-bits of a 64-bit MSR. The bit\r
field is specified by the StartBit and the EndBit. All other bits in the\r
destination MSR are preserved. The lower 32-bits of the MSR written is\r
- returned. The caller must either guarantee that Index and the data written \r
- is valid, or the caller must set up exception handlers to catch the exceptions. \r
+ returned. The caller must either guarantee that Index and the data written\r
+ is valid, or the caller must set up exception handlers to catch the exceptions.\r
This function is only available on IA-32 and x64.\r
\r
If StartBit is greater than 31, then ASSERT().\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Index The 32-bit MSR index to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 31, then ASSERT().\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Index The 32-bit MSR index to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 31, then ASSERT().\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Index The 32-bit MSR index to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 31, then ASSERT().\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Index The 32-bit MSR index to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
\r
\r
/**\r
- Reads a 64-bit MSR, performs a bitwise AND followed by a bitwise \r
+ Reads a 64-bit MSR, performs a bitwise AND followed by a bitwise\r
OR, and writes the result back to the 64-bit MSR.\r
\r
Reads the 64-bit MSR specified by Index, performs a bitwise AND between read\r
\r
Writes Value to a bit field in a 64-bit MSR. The bit field is specified by\r
the StartBit and the EndBit. All other bits in the destination MSR are\r
- preserved. The MSR written is returned. The caller must either guarantee \r
- that Index and the data written is valid, or the caller must set up exception \r
+ preserved. The MSR written is returned. The caller must either guarantee\r
+ that Index and the data written is valid, or the caller must set up exception\r
handlers to catch the exceptions. This function is only available on IA-32 and x64.\r
\r
If StartBit is greater than 63, then ASSERT().\r
If EndBit is greater than 63, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Index The 32-bit MSR index to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 63, then ASSERT().\r
If EndBit is greater than 63, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Index The 32-bit MSR index to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 63, then ASSERT().\r
If EndBit is greater than 63, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Index The 32-bit MSR index to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 63, then ASSERT().\r
If EndBit is greater than 63, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Index The 32-bit MSR index to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
\r
If Gdtr is NULL, then ASSERT().\r
\r
- @param Gdtr Pointer to a GDTR descriptor.\r
+ @param Gdtr The pointer to a GDTR descriptor.\r
\r
**/\r
VOID\r
\r
If Gdtr is NULL, then ASSERT().\r
\r
- @param Gdtr Pointer to a GDTR descriptor.\r
+ @param Gdtr The pointer to a GDTR descriptor.\r
\r
**/\r
VOID\r
\r
If Idtr is NULL, then ASSERT().\r
\r
- @param Idtr Pointer to a IDTR descriptor.\r
+ @param Idtr The pointer to a IDTR descriptor.\r
\r
**/\r
VOID\r
\r
If Idtr is NULL, then ASSERT().\r
\r
- @param Idtr Pointer to a IDTR descriptor.\r
+ @param Idtr The pointer to a IDTR descriptor.\r
\r
**/\r
VOID\r
If Buffer is NULL, then ASSERT().\r
If Buffer is not aligned on a 16-byte boundary, then ASSERT().\r
\r
- @param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context.\r
+ @param Buffer The pointer to a buffer to save the floating point/SSE/SSE2 context.\r
\r
**/\r
VOID\r
If Buffer is not aligned on a 16-byte boundary, then ASSERT().\r
If Buffer was not saved with AsmFxSave(), then ASSERT().\r
\r
- @param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context.\r
+ @param Buffer The pointer to a buffer to save the floating point/SSE/SSE2 context.\r
\r
**/\r
VOID\r
addressing mode, then LinearAddress is a virtual\r
address.\r
\r
- @return LinearAddress\r
+ @return LinearAddress.\r
**/\r
VOID *\r
EFIAPI\r
in ExtraStackSize. If parameters are passed to the 16-bit real mode code,\r
then the actual minimum stack size is ExtraStackSize plus the maximum number\r
of bytes that need to be passed to the 16-bit real mode code.\r
- \r
+\r
If RealModeBufferSize is NULL, then ASSERT().\r
If ExtraStackSize is NULL, then ASSERT().\r
\r
Prepares all structures a code required to use AsmThunk16().\r
\r
Prepares all structures and code required to use AsmThunk16().\r
- \r
+\r
This interface is limited to be used in either physical mode or virtual modes with paging enabled where the\r
virtual to physical mappings for ThunkContext.RealModeBuffer is mapped 1:1.\r
\r
VOID\r
EFIAPI\r
AsmPrepareThunk16 (\r
- OUT THUNK_CONTEXT *ThunkContext\r
+ IN OUT THUNK_CONTEXT *ThunkContext\r
);\r
\r
\r
AsmPrepareThunk16() must be called with ThunkContext before this function is used.\r
This function must be called with interrupts disabled.\r
\r
- The register state from the RealModeState field of ThunkContext is restored just prior \r
- to calling the 16-bit real mode entry point. This includes the EFLAGS field of RealModeState, \r
+ The register state from the RealModeState field of ThunkContext is restored just prior\r
+ to calling the 16-bit real mode entry point. This includes the EFLAGS field of RealModeState,\r
which is used to set the interrupt state when a 16-bit real mode entry point is called.\r
Control is transferred to the 16-bit real mode entry point specified by the CS and Eip fields of RealModeState.\r
- The stack is initialized to the SS and ESP fields of RealModeState. Any parameters passed to \r
- the 16-bit real mode code must be populated by the caller at SS:ESP prior to calling this function. \r
+ The stack is initialized to the SS and ESP fields of RealModeState. Any parameters passed to\r
+ the 16-bit real mode code must be populated by the caller at SS:ESP prior to calling this function.\r
The 16-bit real mode entry point is invoked with a 16-bit CALL FAR instruction,\r
- so when accessing stack contents, the 16-bit real mode code must account for the 16-bit segment \r
- and 16-bit offset of the return address that were pushed onto the stack. The 16-bit real mode entry \r
- point must exit with a RETF instruction. The register state is captured into RealModeState immediately \r
+ so when accessing stack contents, the 16-bit real mode code must account for the 16-bit segment\r
+ and 16-bit offset of the return address that were pushed onto the stack. The 16-bit real mode entry\r
+ point must exit with a RETF instruction. The register state is captured into RealModeState immediately\r
after the RETF instruction is executed.\r
- \r
- If EFLAGS specifies interrupts enabled, or any of the 16-bit real mode code enables interrupts, \r
- or any of the 16-bit real mode code makes a SW interrupt, then the caller is responsible for making sure \r
- the IDT at address 0 is initialized to handle any HW or SW interrupts that may occur while in 16-bit real mode. \r
- \r
- If EFLAGS specifies interrupts enabled, or any of the 16-bit real mode code enables interrupts, \r
- then the caller is responsible for making sure the 8259 PIC is in a state compatible with 16-bit real mode. \r
+\r
+ If EFLAGS specifies interrupts enabled, or any of the 16-bit real mode code enables interrupts,\r
+ or any of the 16-bit real mode code makes a SW interrupt, then the caller is responsible for making sure\r
+ the IDT at address 0 is initialized to handle any HW or SW interrupts that may occur while in 16-bit real mode.\r
+\r
+ If EFLAGS specifies interrupts enabled, or any of the 16-bit real mode code enables interrupts,\r
+ then the caller is responsible for making sure the 8259 PIC is in a state compatible with 16-bit real mode.\r
This includes the base vectors, the interrupt masks, and the edge/level trigger mode.\r
- \r
- If THUNK_ATTRIBUTE_BIG_REAL_MODE is set in the ThunkAttributes field of ThunkContext, then the user code \r
+\r
+ If THUNK_ATTRIBUTE_BIG_REAL_MODE is set in the ThunkAttributes field of ThunkContext, then the user code\r
is invoked in big real mode. Otherwise, the user code is invoked in 16-bit real mode with 64KB segment limits.\r
- \r
- If neither THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 nor THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL are set in \r
- ThunkAttributes, then it is assumed that the user code did not enable the A20 mask, and no attempt is made to \r
+\r
+ If neither THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 nor THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL are set in\r
+ ThunkAttributes, then it is assumed that the user code did not enable the A20 mask, and no attempt is made to\r
disable the A20 mask.\r
- \r
- If THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 is set and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL is clear in \r
- ThunkAttributes, then attempt to use the INT 15 service to disable the A20 mask. If this INT 15 call fails, \r
+\r
+ If THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 is set and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL is clear in\r
+ ThunkAttributes, then attempt to use the INT 15 service to disable the A20 mask. If this INT 15 call fails,\r
then attempt to disable the A20 mask by directly accessing the 8042 keyboard controller I/O ports.\r
- \r
- If THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 is clear and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL is set in \r
+\r
+ If THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 is clear and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL is set in\r
ThunkAttributes, then attempt to disable the A20 mask by directly accessing the 8042 keyboard controller I/O ports.\r
- \r
+\r
If ThunkContext is NULL, then ASSERT().\r
If AsmPrepareThunk16() was not previously called with ThunkContext, then ASSERT().\r
- If both THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL are set in \r
+ If both THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 and THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL are set in\r
ThunkAttributes, then ASSERT().\r
\r
This interface is limited to be used in either physical mode or virtual modes with paging enabled where the\r
- virtual to physical mappings for ThunkContext.RealModeBuffer is mapped 1:1.\r
+ virtual to physical mappings for ThunkContext.RealModeBuffer are mapped 1:1.\r
\r
@param ThunkContext A pointer to the context structure that describes the\r
16-bit real mode code to call.\r
IN OUT THUNK_CONTEXT *ThunkContext\r
);\r
\r
-#endif\r
-#endif\r
+/**\r
+ Generates a 16-bit random number through RDRAND instruction.\r
+\r
+ if Rand is NULL, then ASSERT().\r
+\r
+ @param[out] Rand Buffer pointer to store the random result.\r
+\r
+ @retval TRUE RDRAND call was successful.\r
+ @retval FALSE Failed attempts to call RDRAND.\r
+\r
+ **/\r
+BOOLEAN\r
+EFIAPI\r
+AsmRdRand16 (\r
+ OUT UINT16 *Rand\r
+ );\r
+\r
+/**\r
+ Generates a 32-bit random number through RDRAND instruction.\r
+\r
+ if Rand is NULL, then ASSERT().\r
+\r
+ @param[out] Rand Buffer pointer to store the random result.\r
+\r
+ @retval TRUE RDRAND call was successful.\r
+ @retval FALSE Failed attempts to call RDRAND.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+AsmRdRand32 (\r
+ OUT UINT32 *Rand\r
+ );\r
+\r
+/**\r
+ Generates a 64-bit random number through RDRAND instruction.\r
+\r
+ if Rand is NULL, then ASSERT().\r
+\r
+ @param[out] Rand Buffer pointer to store the random result.\r
+\r
+ @retval TRUE RDRAND call was successful.\r
+ @retval FALSE Failed attempts to call RDRAND.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+AsmRdRand64 (\r
+ OUT UINT64 *Rand\r
+ );\r
+\r
+/**\r
+ Load given selector into TR register.\r
\r
+ @param[in] Selector Task segment selector\r
+**/\r
+VOID\r
+EFIAPI\r
+AsmWriteTr (\r
+ IN UINT16 Selector\r
+ );\r
+\r
+/**\r
+ Performs a serializing operation on all load-from-memory instructions that\r
+ were issued prior the AsmLfence function.\r
+\r
+ Executes a LFENCE instruction. This function is only available on IA-32 and x64.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+AsmLfence (\r
+ VOID\r
+ );\r
+\r
+/**\r
+ Executes a XGETBV instruction\r
+\r
+ Executes a XGETBV instruction. This function is only available on IA-32 and\r
+ x64.\r
+\r
+ @param[in] Index Extended control register index\r
+\r
+ @return The current value of the extended control register\r
+**/\r
+UINT64\r
+EFIAPI\r
+AsmXGetBv (\r
+ IN UINT32 Index\r
+ );\r
+\r
+/**\r
+ Executes a XSETBV instruction to write a 64-bit value to a Extended Control\r
+ Register(XCR), and returns the value.\r
+\r
+ Writes the 64-bit value specified by Value to the XCR specified by Index. The\r
+ 64-bit value written to the XCR is returned. No parameter checking is\r
+ performed on Index or Value, and some of these may cause CPU exceptions. The\r
+ caller must either guarantee that Index and Value are valid, or the caller\r
+ must establish proper exception handlers. This function is only available on\r
+ IA-32 and x64.\r
+\r
+ @param Index The 32-bit XCR index to write.\r
+ @param Value The 64-bit value to write to the XCR.\r
+\r
+ @return Value\r
+\r
+**/\r
+UINT64\r
+EFIAPI\r
+AsmXSetBv (\r
+ IN UINT32 Index,\r
+ IN UINT64 Value\r
+ );\r
+\r
+/**\r
+ Executes a VMGEXIT instruction (VMMCALL with a REP prefix)\r
+\r
+ Executes a VMGEXIT instruction. This function is only available on IA-32 and\r
+ x64.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+AsmVmgExit (\r
+ VOID\r
+ );\r
+\r
+\r
+/**\r
+ Patch the immediate operand of an IA32 or X64 instruction such that the byte,\r
+ word, dword or qword operand is encoded at the end of the instruction's\r
+ binary representation.\r
+\r
+ This function should be used to update object code that was compiled with\r
+ NASM from assembly source code. Example:\r
+\r
+ NASM source code:\r
+\r
+ mov eax, strict dword 0 ; the imm32 zero operand will be patched\r
+ ASM_PFX(gPatchCr3):\r
+ mov cr3, eax\r
+\r
+ C source code:\r
+\r
+ X86_ASSEMBLY_PATCH_LABEL gPatchCr3;\r
+ PatchInstructionX86 (gPatchCr3, AsmReadCr3 (), 4);\r
+\r
+ @param[out] InstructionEnd Pointer right past the instruction to patch. The\r
+ immediate operand to patch is expected to\r
+ comprise the trailing bytes of the instruction.\r
+ If InstructionEnd is closer to address 0 than\r
+ ValueSize permits, then ASSERT().\r
+\r
+ @param[in] PatchValue The constant to write to the immediate operand.\r
+ The caller is responsible for ensuring that\r
+ PatchValue can be represented in the byte, word,\r
+ dword or qword operand (as indicated through\r
+ ValueSize); otherwise ASSERT().\r
+\r
+ @param[in] ValueSize The size of the operand in bytes; must be 1, 2,\r
+ 4, or 8. ASSERT() otherwise.\r
+**/\r
+VOID\r
+EFIAPI\r
+PatchInstructionX86 (\r
+ OUT X86_ASSEMBLY_PATCH_LABEL *InstructionEnd,\r
+ IN UINT64 PatchValue,\r
+ IN UINTN ValueSize\r
+ );\r
\r
+#endif // defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)\r
+#endif // !defined (__BASE_LIB__)\r
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