diff options
Diffstat (limited to 'OldMdePkg/Include/Library/BaseLib.h')
| -rw-r--r-- | OldMdePkg/Include/Library/BaseLib.h | 7138 |
1 files changed, 0 insertions, 7138 deletions
diff --git a/OldMdePkg/Include/Library/BaseLib.h b/OldMdePkg/Include/Library/BaseLib.h deleted file mode 100644 index 5fbcb10d58..0000000000 --- a/OldMdePkg/Include/Library/BaseLib.h +++ /dev/null @@ -1,7138 +0,0 @@ -/** @file - Memory-only library functions with no library constructor/destructor - - Copyright (c) 2006 - 2007, Intel Corporation - All rights reserved. This program and the accompanying materials - are licensed and made available under the terms and conditions of the BSD License - which accompanies this distribution. The full text of the license may be found at - http://opensource.org/licenses/bsd-license.php - - THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. - - Module Name: BaseLib.h - -**/ - -#ifndef __BASE_LIB__ -#define __BASE_LIB__ - -// -// Definitions for architecture specific types -// These include SPIN_LOCK and BASE_LIBRARY_JUMP_BUFFER -// - -// -// SPIN_LOCK -// -typedef volatile UINTN SPIN_LOCK; - -#if defined (MDE_CPU_IA32) -// -// IA32 context buffer used by SetJump() and LongJump() -// -typedef struct { - UINT32 Ebx; - UINT32 Esi; - UINT32 Edi; - UINT32 Ebp; - UINT32 Esp; - UINT32 Eip; -} BASE_LIBRARY_JUMP_BUFFER; - -#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8 - -#elif defined (MDE_CPU_IPF) -// -// IPF context buffer used by SetJump() and LongJump() -// -typedef struct { - UINT64 F2[2]; - UINT64 F3[2]; - UINT64 F4[2]; - UINT64 F5[2]; - UINT64 F16[2]; - UINT64 F17[2]; - UINT64 F18[2]; - UINT64 F19[2]; - UINT64 F20[2]; - UINT64 F21[2]; - UINT64 F22[2]; - UINT64 F23[2]; - UINT64 F24[2]; - UINT64 F25[2]; - UINT64 F26[2]; - UINT64 F27[2]; - UINT64 F28[2]; - UINT64 F29[2]; - UINT64 F30[2]; - UINT64 F31[2]; - UINT64 R4; - UINT64 R5; - UINT64 R6; - UINT64 R7; - UINT64 SP; - UINT64 BR0; - UINT64 BR1; - UINT64 BR2; - UINT64 BR3; - UINT64 BR4; - UINT64 BR5; - UINT64 InitialUNAT; - UINT64 AfterSpillUNAT; - UINT64 PFS; - UINT64 BSP; - UINT64 Predicates; - UINT64 LoopCount; - UINT64 FPSR; -} BASE_LIBRARY_JUMP_BUFFER; - -#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 0x10 - -#elif defined (MDE_CPU_X64) -// -// X64 context buffer used by SetJump() and LongJump() -// -typedef struct { - UINT64 Rbx; - UINT64 Rsp; - UINT64 Rbp; - UINT64 Rdi; - UINT64 Rsi; - UINT64 R12; - UINT64 R13; - UINT64 R14; - UINT64 R15; - UINT64 Rip; -} BASE_LIBRARY_JUMP_BUFFER; - -#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8 - -#elif defined (MDE_CPU_EBC) -// -// EBC context buffer used by SetJump() and LongJump() -// -typedef struct { - UINT64 R0; - UINT64 R1; - UINT64 R2; - UINT64 R3; - UINT64 IP; -} BASE_LIBRARY_JUMP_BUFFER; - -#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8 - -#else -#error Unknown Processor Type -#endif - -// -// String Services -// - -/** - Copies one Null-terminated Unicode string to another Null-terminated Unicode - string and returns the new Unicode string. - - This function copies the contents of the Unicode string Source to the Unicode - string Destination, and returns Destination. If Source and Destination - overlap, then the results are undefined. - - If Destination is NULL, then ASSERT(). - If Destination is not aligned on a 16-bit boundary, then ASSERT(). - If Source is NULL, then ASSERT(). - If Source is not aligned on a 16-bit boundary, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and Source contains more than - PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param Destination Pointer to a Null-terminated Unicode string. - @param Source Pointer to a Null-terminated Unicode string. - - @return Destiantion - -**/ -CHAR16 * -EFIAPI -StrCpy ( - OUT CHAR16 *Destination, - IN CONST CHAR16 *Source - ); - - -/** - Copies one Null-terminated Unicode string with a maximum length to another - Null-terminated Unicode string with a maximum length and returns the new - Unicode string. - - This function copies the contents of the Unicode string Source to the Unicode - string Destination, and returns Destination. At most, Length Unicode - characters are copied from Source to Destination. If Length is 0, then - Destination is returned unmodified. If Length is greater that the number of - Unicode characters in Source, then Destination is padded with Null Unicode - characters. If Source and Destination overlap, then the results are - undefined. - - If Length > 0 and Destination is NULL, then ASSERT(). - If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT(). - If Length > 0 and Source is NULL, then ASSERT(). - If Length > 0 and Source is not aligned on a 16-bit bounadry, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and Source contains more than - PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param Destination Pointer to a Null-terminated Unicode string. - @param Source Pointer to a Null-terminated Unicode string. - @param Length Maximum number of Unicode characters to copy. - - @return Destination - -**/ -CHAR16 * -EFIAPI -StrnCpy ( - OUT CHAR16 *Destination, - IN CONST CHAR16 *Source, - IN UINTN Length - ); - - -/** - Returns the length of a Null-terminated Unicode string. - - This function returns the number of Unicode characters in the Null-terminated - Unicode string specified by String. - - If String is NULL, then ASSERT(). - If String is not aligned on a 16-bit boundary, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and String contains more than - PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param String Pointer to a Null-terminated Unicode string. - - @return The length of String. - -**/ -UINTN -EFIAPI -StrLen ( - IN CONST CHAR16 *String - ); - - -/** - Returns the size of a Null-terminated Unicode string in bytes, including the - Null terminator. - - This function returns the size, in bytes, of the Null-terminated Unicode - string specified by String. - - If String is NULL, then ASSERT(). - If String is not aligned on a 16-bit boundary, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and String contains more than - PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param String Pointer to a Null-terminated Unicode string. - - @return The size of String. - -**/ -UINTN -EFIAPI -StrSize ( - IN CONST CHAR16 *String - ); - - -/** - Compares two Null-terminated Unicode strings, and returns the difference - between the first mismatched Unicode characters. - - This function compares the Null-terminated Unicode string FirstString to the - Null-terminated Unicode string SecondString. If FirstString is identical to - SecondString, then 0 is returned. Otherwise, the value returned is the first - mismatched Unicode character in SecondString subtracted from the first - mismatched Unicode character in FirstString. - - If FirstString is NULL, then ASSERT(). - If FirstString is not aligned on a 16-bit boundary, then ASSERT(). - If SecondString is NULL, then ASSERT(). - If SecondString is not aligned on a 16-bit boundary, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more - than PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more - than PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param FirstString Pointer to a Null-terminated Unicode string. - @param SecondString Pointer to a Null-terminated Unicode string. - - @retval 0 FirstString is identical to SecondString. - @retval !=0 FirstString is not identical to SecondString. - -**/ -INTN -EFIAPI -StrCmp ( - IN CONST CHAR16 *FirstString, - IN CONST CHAR16 *SecondString - ); - - -/** - Compares two Null-terminated Unicode strings with maximum lengths, and - returns the difference between the first mismatched Unicode characters. - - This function compares the Null-terminated Unicode string FirstString to the - Null-terminated Unicode string SecondString. At most, Length Unicode - characters will be compared. If Length is 0, then 0 is returned. If - FirstString is identical to SecondString, then 0 is returned. Otherwise, the - value returned is the first mismatched Unicode character in SecondString - subtracted from the first mismatched Unicode character in FirstString. - - If Length > 0 and FirstString is NULL, then ASSERT(). - If Length > 0 and FirstString is not aligned on a 16-bit bounadary, then ASSERT(). - If Length > 0 and SecondString is NULL, then ASSERT(). - If Length > 0 and SecondString is not aligned on a 16-bit bounadary, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more - than PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more - than PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param FirstString Pointer to a Null-terminated Unicode string. - @param SecondString Pointer to a Null-terminated Unicode string. - @param Length Maximum number of Unicode characters to compare. - - @retval 0 FirstString is identical to SecondString. - @retval !=0 FirstString is not identical to SecondString. - -**/ -INTN -EFIAPI -StrnCmp ( - IN CONST CHAR16 *FirstString, - IN CONST CHAR16 *SecondString, - IN UINTN Length - ); - - -/** - Concatenates one Null-terminated Unicode string to another Null-terminated - Unicode string, and returns the concatenated Unicode string. - - This function concatenates two Null-terminated Unicode strings. The contents - of Null-terminated Unicode string Source are concatenated to the end of - Null-terminated Unicode string Destination. The Null-terminated concatenated - Unicode String is returned. If Source and Destination overlap, then the - results are undefined. - - If Destination is NULL, then ASSERT(). - If Destination is not aligned on a 16-bit bounadary, then ASSERT(). - If Source is NULL, then ASSERT(). - If Source is not aligned on a 16-bit bounadary, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and Destination contains more - than PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and Source contains more than - PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination - and Source results in a Unicode string with more than - PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param Destination Pointer to a Null-terminated Unicode string. - @param Source Pointer to a Null-terminated Unicode string. - - @return Destination - -**/ -CHAR16 * -EFIAPI -StrCat ( - IN OUT CHAR16 *Destination, - IN CONST CHAR16 *Source - ); - - -/** - Concatenates one Null-terminated Unicode string with a maximum length to the - end of another Null-terminated Unicode string, and returns the concatenated - Unicode string. - - This function concatenates two Null-terminated Unicode strings. The contents - of Null-terminated Unicode string Source are concatenated to the end of - Null-terminated Unicode string Destination, and Destination is returned. At - most, Length Unicode characters are concatenated from Source to the end of - Destination, and Destination is always Null-terminated. If Length is 0, then - Destination is returned unmodified. If Source and Destination overlap, then - the results are undefined. - - If Destination is NULL, then ASSERT(). - If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT(). - If Length > 0 and Source is NULL, then ASSERT(). - If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and Destination contains more - than PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and Source contains more than - PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination - and Source results in a Unicode string with more than - PcdMaximumUnicodeStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param Destination Pointer to a Null-terminated Unicode string. - @param Source Pointer to a Null-terminated Unicode string. - @param Length Maximum number of Unicode characters to concatenate from - Source. - - @return Destination - -**/ -CHAR16 * -EFIAPI -StrnCat ( - IN OUT CHAR16 *Destination, - IN CONST CHAR16 *Source, - IN UINTN Length - ); - -/** - Returns the first occurance of a Null-terminated Unicode sub-string - in a Null-terminated Unicode string. - - This function scans the contents of the Null-terminated Unicode string - specified by String and returns the first occurrence of SearchString. - If SearchString is not found in String, then NULL is returned. If - the length of SearchString is zero, then String is - returned. - - If String is NULL, then ASSERT(). - If String is not aligned on a 16-bit boundary, then ASSERT(). - If SearchString is NULL, then ASSERT(). - If SearchString is not aligned on a 16-bit boundary, then ASSERT(). - - If PcdMaximumUnicodeStringLength is not zero, and SearchString - or String contains more than PcdMaximumUnicodeStringLength Unicode - characters not including the Null-terminator, then ASSERT(). - - @param String Pointer to a Null-terminated Unicode string. - @param SearchString Pointer to a Null-terminated Unicode string to search for. - - @retval NULL If the SearchString does not appear in String. - @retval !NULL If there is a match. - -**/ -CHAR16 * -EFIAPI -StrStr ( - IN CONST CHAR16 *String, - IN CONST CHAR16 *SearchString - ); - -/** - Convert a Null-terminated Unicode decimal string to a value of - type UINTN. - - This function returns a value of type UINTN by interpreting the contents - of the Unicode string specified by String as a decimal number. The format - of the input Unicode string String is: - - [spaces] [decimal digits]. - - The valid decimal digit character is in the range [0-9]. The - function will ignore the pad space, which includes spaces or - tab characters, before [decimal digits]. The running zero in the - beginning of [decimal digits] will be ignored. Then, the function - stops at the first character that is a not a valid decimal character - or a Null-terminator, whichever one comes first. - - If String is NULL, then ASSERT(). - If String is not aligned in a 16-bit boundary, then ASSERT(). - If String has only pad spaces, then 0 is returned. - If String has no pad spaces or valid decimal digits, - then 0 is returned. - If the number represented by String overflows according - to the range defined by UINTN, then ASSERT(). - - If PcdMaximumUnicodeStringLength is not zero, and String contains - more than PcdMaximumUnicodeStringLength Unicode characters not including - the Null-terminator, then ASSERT(). - - @param String Pointer to a Null-terminated Unicode string. - - @retval UINTN - -**/ -UINTN -EFIAPI -StrDecimalToUintn ( - IN CONST CHAR16 *String - ); - -/** - Convert a Null-terminated Unicode decimal string to a value of - type UINT64. - - This function returns a value of type UINT64 by interpreting the contents - of the Unicode string specified by String as a decimal number. The format - of the input Unicode string String is: - - [spaces] [decimal digits]. - - The valid decimal digit character is in the range [0-9]. The - function will ignore the pad space, which includes spaces or - tab characters, before [decimal digits]. The running zero in the - beginning of [decimal digits] will be ignored. Then, the function - stops at the first character that is a not a valid decimal character - or a Null-terminator, whichever one comes first. - - If String is NULL, then ASSERT(). - If String is not aligned in a 16-bit boundary, then ASSERT(). - If String has only pad spaces, then 0 is returned. - If String has no pad spaces or valid decimal digits, - then 0 is returned. - If the number represented by String overflows according - to the range defined by UINT64, then ASSERT(). - - If PcdMaximumUnicodeStringLength is not zero, and String contains - more than PcdMaximumUnicodeStringLength Unicode characters not including - the Null-terminator, then ASSERT(). - - @param String Pointer to a Null-terminated Unicode string. - - @retval UINT64 - -**/ -UINT64 -EFIAPI -StrDecimalToUint64 ( - IN CONST CHAR16 *String - ); - - -/** - Convert a Null-terminated Unicode hexadecimal string to a value of type UINTN. - - This function returns a value of type UINTN by interpreting the contents - of the Unicode string specified by String as a hexadecimal number. - The format of the input Unicode string String is: - - [spaces][zeros][x][hexadecimal digits]. - - The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. - The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. - If "x" appears in the input string, it must be prefixed with at least one 0. - The function will ignore the pad space, which includes spaces or tab characters, - before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or - [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the - first valid hexadecimal digit. Then, the function stops at the first character that is - a not a valid hexadecimal character or NULL, whichever one comes first. - - If String is NULL, then ASSERT(). - If String is not aligned in a 16-bit boundary, then ASSERT(). - If String has only pad spaces, then zero is returned. - If String has no leading pad spaces, leading zeros or valid hexadecimal digits, - then zero is returned. - If the number represented by String overflows according to the range defined by - UINTN, then ASSERT(). - - If PcdMaximumUnicodeStringLength is not zero, and String contains more than - PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, - then ASSERT(). - - @param String Pointer to a Null-terminated Unicode string. - - @retval UINTN - -**/ -UINTN -EFIAPI -StrHexToUintn ( - IN CONST CHAR16 *String - ); - - -/** - Convert a Null-terminated Unicode hexadecimal string to a value of type UINT64. - - This function returns a value of type UINT64 by interpreting the contents - of the Unicode string specified by String as a hexadecimal number. - The format of the input Unicode string String is - - [spaces][zeros][x][hexadecimal digits]. - - The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. - The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. - If "x" appears in the input string, it must be prefixed with at least one 0. - The function will ignore the pad space, which includes spaces or tab characters, - before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or - [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the - first valid hexadecimal digit. Then, the function stops at the first character that is - a not a valid hexadecimal character or NULL, whichever one comes first. - - If String is NULL, then ASSERT(). - If String is not aligned in a 16-bit boundary, then ASSERT(). - If String has only pad spaces, then zero is returned. - If String has no leading pad spaces, leading zeros or valid hexadecimal digits, - then zero is returned. - If the number represented by String overflows according to the range defined by - UINT64, then ASSERT(). - - If PcdMaximumUnicodeStringLength is not zero, and String contains more than - PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, - then ASSERT(). - - @param String Pointer to a Null-terminated Unicode string. - - @retval UINT64 - -**/ -UINT64 -EFIAPI -StrHexToUint64 ( - IN CONST CHAR16 *String - ); - - -/** - Convert one Null-terminated Unicode string to a Null-terminated - ASCII string and returns the ASCII string. - - This function converts the content of the Unicode string Source - to the ASCII string Destination by copying the lower 8 bits of - each Unicode character. It returns Destination. - - If any Unicode characters in Source contain non-zero value in - the upper 8 bits, then ASSERT(). - - If Destination is NULL, then ASSERT(). - If Source is NULL, then ASSERT(). - If Source is not aligned on a 16-bit boundary, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - - If PcdMaximumUnicodeStringLength is not zero, and Source contains - more than PcdMaximumUnicodeStringLength Unicode characters not including - the Null-terminator, then ASSERT(). - - If PcdMaximumAsciiStringLength is not zero, and Source contains more - than PcdMaximumAsciiStringLength Unicode characters not including the - Null-terminator, then ASSERT(). - - @param Source Pointer to a Null-terminated Unicode string. - @param Destination Pointer to a Null-terminated ASCII string. - - @reture Destination - -**/ -CHAR8 * -EFIAPI -UnicodeStrToAsciiStr ( - IN CONST CHAR16 *Source, - OUT CHAR8 *Destination - ); - - -/** - Copies one Null-terminated ASCII string to another Null-terminated ASCII - string and returns the new ASCII string. - - This function copies the contents of the ASCII string Source to the ASCII - string Destination, and returns Destination. If Source and Destination - overlap, then the results are undefined. - - If Destination is NULL, then ASSERT(). - If Source is NULL, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and Source contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - - @param Destination Pointer to a Null-terminated ASCII string. - @param Source Pointer to a Null-terminated ASCII string. - - @return Destination - -**/ -CHAR8 * -EFIAPI -AsciiStrCpy ( - OUT CHAR8 *Destination, - IN CONST CHAR8 *Source - ); - - -/** - Copies one Null-terminated ASCII string with a maximum length to another - Null-terminated ASCII string with a maximum length and returns the new ASCII - string. - - This function copies the contents of the ASCII string Source to the ASCII - string Destination, and returns Destination. At most, Length ASCII characters - are copied from Source to Destination. If Length is 0, then Destination is - returned unmodified. If Length is greater that the number of ASCII characters - in Source, then Destination is padded with Null ASCII characters. If Source - and Destination overlap, then the results are undefined. - - If Destination is NULL, then ASSERT(). - If Source is NULL, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, and Source contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - - @param Destination Pointer to a Null-terminated ASCII string. - @param Source Pointer to a Null-terminated ASCII string. - @param Length Maximum number of ASCII characters to copy. - - @return Destination - -**/ -CHAR8 * -EFIAPI -AsciiStrnCpy ( - OUT CHAR8 *Destination, - IN CONST CHAR8 *Source, - IN UINTN Length - ); - - -/** - Returns the length of a Null-terminated ASCII string. - - This function returns the number of ASCII characters in the Null-terminated - ASCII string specified by String. - - If Length > 0 and Destination is NULL, then ASSERT(). - If Length > 0 and Source is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and String contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - - @param String Pointer to a Null-terminated ASCII string. - - @return The length of String. - -**/ -UINTN -EFIAPI -AsciiStrLen ( - IN CONST CHAR8 *String - ); - - -/** - Returns the size of a Null-terminated ASCII string in bytes, including the - Null terminator. - - This function returns the size, in bytes, of the Null-terminated ASCII string - specified by String. - - If String is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and String contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - - @param String Pointer to a Null-terminated ASCII string. - - @return The size of String. - -**/ -UINTN -EFIAPI -AsciiStrSize ( - IN CONST CHAR8 *String - ); - - -/** - Compares two Null-terminated ASCII strings, and returns the difference - between the first mismatched ASCII characters. - - This function compares the Null-terminated ASCII string FirstString to the - Null-terminated ASCII string SecondString. If FirstString is identical to - SecondString, then 0 is returned. Otherwise, the value returned is the first - mismatched ASCII character in SecondString subtracted from the first - mismatched ASCII character in FirstString. - - If FirstString is NULL, then ASSERT(). - If SecondString is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and FirstString contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and SecondString contains more - than PcdMaximumAsciiStringLength ASCII characters not including the - Null-terminator, then ASSERT(). - - @param FirstString Pointer to a Null-terminated ASCII string. - @param SecondString Pointer to a Null-terminated ASCII string. - - @retval 0 FirstString is identical to SecondString. - @retval !=0 FirstString is not identical to SecondString. - -**/ -INTN -EFIAPI -AsciiStrCmp ( - IN CONST CHAR8 *FirstString, - IN CONST CHAR8 *SecondString - ); - - -/** - Performs a case insensitive comparison of two Null-terminated ASCII strings, - and returns the difference between the first mismatched ASCII characters. - - This function performs a case insensitive comparison of the Null-terminated - ASCII string FirstString to the Null-terminated ASCII string SecondString. If - FirstString is identical to SecondString, then 0 is returned. Otherwise, the - value returned is the first mismatched lower case ASCII character in - SecondString subtracted from the first mismatched lower case ASCII character - in FirstString. - - If FirstString is NULL, then ASSERT(). - If SecondString is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and FirstString contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and SecondString contains more - than PcdMaximumAsciiStringLength ASCII characters not including the - Null-terminator, then ASSERT(). - - @param FirstString Pointer to a Null-terminated ASCII string. - @param SecondString Pointer to a Null-terminated ASCII string. - - @retval 0 FirstString is identical to SecondString using case insensitive - comparisons. - @retval !=0 FirstString is not identical to SecondString using case - insensitive comparisons. - -**/ -INTN -EFIAPI -AsciiStriCmp ( - IN CONST CHAR8 *FirstString, - IN CONST CHAR8 *SecondString - ); - - -/** - Compares two Null-terminated ASCII strings with maximum lengths, and returns - the difference between the first mismatched ASCII characters. - - This function compares the Null-terminated ASCII string FirstString to the - Null-terminated ASCII string SecondString. At most, Length ASCII characters - will be compared. If Length is 0, then 0 is returned. If FirstString is - identical to SecondString, then 0 is returned. Otherwise, the value returned - is the first mismatched ASCII character in SecondString subtracted from the - first mismatched ASCII character in FirstString. - - If Length > 0 and FirstString is NULL, then ASSERT(). - If Length > 0 and SecondString is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and FirstString contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and SecondString contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - - @param FirstString Pointer to a Null-terminated ASCII string. - @param SecondString Pointer to a Null-terminated ASCII string. - - @retval 0 FirstString is identical to SecondString. - @retval !=0 FirstString is not identical to SecondString. - -**/ -INTN -EFIAPI -AsciiStrnCmp ( - IN CONST CHAR8 *FirstString, - IN CONST CHAR8 *SecondString, - IN UINTN Length - ); - - -/** - Concatenates one Null-terminated ASCII string to another Null-terminated - ASCII string, and returns the concatenated ASCII string. - - This function concatenates two Null-terminated ASCII strings. The contents of - Null-terminated ASCII string Source are concatenated to the end of Null- - terminated ASCII string Destination. The Null-terminated concatenated ASCII - String is returned. - - If Destination is NULL, then ASSERT(). - If Source is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and Destination contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and Source contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - If PcdMaximumAsciiStringLength is not zero and concatenating Destination and - Source results in a ASCII string with more than PcdMaximumAsciiStringLength - ASCII characters, then ASSERT(). - - @param Destination Pointer to a Null-terminated ASCII string. - @param Source Pointer to a Null-terminated ASCII string. - - @return Destination - -**/ -CHAR8 * -EFIAPI -AsciiStrCat ( - IN OUT CHAR8 *Destination, - IN CONST CHAR8 *Source - ); - - -/** - Concatenates one Null-terminated ASCII string with a maximum length to the - end of another Null-terminated ASCII string, and returns the concatenated - ASCII string. - - This function concatenates two Null-terminated ASCII strings. The contents - of Null-terminated ASCII string Source are concatenated to the end of Null- - terminated ASCII string Destination, and Destination is returned. At most, - Length ASCII characters are concatenated from Source to the end of - Destination, and Destination is always Null-terminated. If Length is 0, then - Destination is returned unmodified. If Source and Destination overlap, then - the results are undefined. - - If Length > 0 and Destination is NULL, then ASSERT(). - If Length > 0 and Source is NULL, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, and Destination contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, and Source contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, and concatenating Destination and - Source results in a ASCII string with more than PcdMaximumAsciiStringLength - ASCII characters not including the Null-terminator, then ASSERT(). - - @param Destination Pointer to a Null-terminated ASCII string. - @param Source Pointer to a Null-terminated ASCII string. - @param Length Maximum number of ASCII characters to concatenate from - Source. - - @return Destination - -**/ -CHAR8 * -EFIAPI -AsciiStrnCat ( - IN OUT CHAR8 *Destination, - IN CONST CHAR8 *Source, - IN UINTN Length - ); - - -/** - Returns the first occurance of a Null-terminated ASCII sub-string - in a Null-terminated ASCII string. - - This function scans the contents of the ASCII string specified by String - and returns the first occurrence of SearchString. If SearchString is not - found in String, then NULL is returned. If the length of SearchString is zero, - then String is returned. - - If String is NULL, then ASSERT(). - If SearchString is NULL, then ASSERT(). - - If PcdMaximumAsciiStringLength is not zero, and SearchString or - String contains more than PcdMaximumAsciiStringLength Unicode characters - not including the Null-terminator, then ASSERT(). - - @param String Pointer to a Null-terminated ASCII string. - @param SearchString Pointer to a Null-terminated ASCII string to search for. - - @retval NULL If the SearchString does not appear in String. - @retval !NULL If there is a match. - -**/ -CHAR8 * -EFIAPI -AsciiStrStr ( - IN CONST CHAR8 *String, - IN CONST CHAR8 *SearchString - ); - - -/** - Convert a Null-terminated ASCII decimal string to a value of type - UINTN. - - This function returns a value of type UINTN by interpreting the contents - of the ASCII string String as a decimal number. The format of the input - ASCII string String is: - - [spaces] [decimal digits]. - - The valid decimal digit character is in the range [0-9]. The function will - ignore the pad space, which includes spaces or tab characters, before the digits. - The running zero in the beginning of [decimal digits] will be ignored. Then, the - function stops at the first character that is a not a valid decimal character or - Null-terminator, whichever on comes first. - - If String has only pad spaces, then 0 is returned. - If String has no pad spaces or valid decimal digits, then 0 is returned. - If the number represented by String overflows according to the range defined by - UINTN, then ASSERT(). - If String is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, and String contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - - @param String Pointer to a Null-terminated ASCII string. - - @retval UINTN - -**/ -UINTN -EFIAPI -AsciiStrDecimalToUintn ( - IN CONST CHAR8 *String - ); - - -/** - Convert a Null-terminated ASCII decimal string to a value of type - UINT64. - - This function returns a value of type UINT64 by interpreting the contents - of the ASCII string String as a decimal number. The format of the input - ASCII string String is: - - [spaces] [decimal digits]. - - The valid decimal digit character is in the range [0-9]. The function will - ignore the pad space, which includes spaces or tab characters, before the digits. - The running zero in the beginning of [decimal digits] will be ignored. Then, the - function stops at the first character that is a not a valid decimal character or - Null-terminator, whichever on comes first. - - If String has only pad spaces, then 0 is returned. - If String has no pad spaces or valid decimal digits, then 0 is returned. - If the number represented by String overflows according to the range defined by - UINT64, then ASSERT(). - If String is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, and String contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - - @param String Pointer to a Null-terminated ASCII string. - - @retval UINT64 - -**/ -UINT64 -EFIAPI -AsciiStrDecimalToUint64 ( - IN CONST CHAR8 *String - ); - - -/** - Convert a Null-terminated ASCII hexadecimal string to a value of type UINTN. - - This function returns a value of type UINTN by interpreting the contents of - the ASCII string String as a hexadecimal number. The format of the input ASCII - string String is: - - [spaces][zeros][x][hexadecimal digits]. - - The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. - The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x" - appears in the input string, it must be prefixed with at least one 0. The function - will ignore the pad space, which includes spaces or tab characters, before [zeros], - [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits] - will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal - digit. Then, the function stops at the first character that is a not a valid - hexadecimal character or Null-terminator, whichever on comes first. - - If String has only pad spaces, then 0 is returned. - If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then - 0 is returned. - - If the number represented by String overflows according to the range defined by UINTN, - then ASSERT(). - If String is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, - and String contains more than PcdMaximumAsciiStringLength ASCII characters not including - the Null-terminator, then ASSERT(). - - @param String Pointer to a Null-terminated ASCII string. - - @retval UINTN - -**/ -UINTN -EFIAPI -AsciiStrHexToUintn ( - IN CONST CHAR8 *String - ); - - -/** - Convert a Null-terminated ASCII hexadecimal string to a value of type UINT64. - - This function returns a value of type UINT64 by interpreting the contents of - the ASCII string String as a hexadecimal number. The format of the input ASCII - string String is: - - [spaces][zeros][x][hexadecimal digits]. - - The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. - The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x" - appears in the input string, it must be prefixed with at least one 0. The function - will ignore the pad space, which includes spaces or tab characters, before [zeros], - [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits] - will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal - digit. Then, the function stops at the first character that is a not a valid - hexadecimal character or Null-terminator, whichever on comes first. - - If String has only pad spaces, then 0 is returned. - If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then - 0 is returned. - - If the number represented by String overflows according to the range defined by UINT64, - then ASSERT(). - If String is NULL, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, - and String contains more than PcdMaximumAsciiStringLength ASCII characters not including - the Null-terminator, then ASSERT(). - - @param String Pointer to a Null-terminated ASCII string. - - @retval UINT64 - -**/ -UINT64 -EFIAPI -AsciiStrHexToUint64 ( - IN CONST CHAR8 *String - ); - - -/** - Convert one Null-terminated ASCII string to a Null-terminated - Unicode string and returns the Unicode string. - - This function converts the contents of the ASCII string Source to the Unicode - string Destination, and returns Destination. The function terminates the - Unicode string Destination by appending a Null-terminator character at the end. - The caller is responsible to make sure Destination points to a buffer with size - equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes. - - If Destination is NULL, then ASSERT(). - If Destination is not aligned on a 16-bit boundary, then ASSERT(). - If Source is NULL, then ASSERT(). - If Source and Destination overlap, then ASSERT(). - If PcdMaximumAsciiStringLength is not zero, and Source contains more than - PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, - then ASSERT(). - If PcdMaximumUnicodeStringLength is not zero, and Source contains more than - PcdMaximumUnicodeStringLength ASCII characters not including the - Null-terminator, then ASSERT(). - - @param Source Pointer to a Null-terminated ASCII string. - @param Destination Pointer to a Null-terminated Unicode string. - - @reture Destination - -**/ -CHAR16 * -EFIAPI -AsciiStrToUnicodeStr ( - IN CONST CHAR8 *Source, - OUT CHAR16 *Destination - ); - - -/** - Converts an 8-bit value to an 8-bit BCD value. - - Converts the 8-bit value specified by Value to BCD. The BCD value is - returned. - - If Value >= 100, then ASSERT(). - - @param Value The 8-bit value to convert to BCD. Range 0..99. - - @return The BCD value - -**/ -UINT8 -EFIAPI -DecimalToBcd8 ( - IN UINT8 Value - ); - - -/** - Converts an 8-bit BCD value to an 8-bit value. - - Converts the 8-bit BCD value specified by Value to an 8-bit value. The 8-bit - value is returned. - - If Value >= 0xA0, then ASSERT(). - If (Value & 0x0F) >= 0x0A, then ASSERT(). - - @param Value The 8-bit BCD value to convert to an 8-bit value. - - @return The 8-bit value is returned. - -**/ -UINT8 -EFIAPI -BcdToDecimal8 ( - IN UINT8 Value - ); - - -// -// Linked List Functions and Macros -// - -/** - Initializes the head node of a doubly linked list that is declared as a - global variable in a module. - - Initializes the forward and backward links of a new linked list. After - initializing a linked list with this macro, the other linked list functions - may be used to add and remove nodes from the linked list. This macro results - in smaller executables by initializing the linked list in the data section, - instead if calling the InitializeListHead() function to perform the - equivalent operation. - - @param ListHead The head note of a list to initiailize. - -**/ -#define INITIALIZE_LIST_HEAD_VARIABLE(ListHead) {&ListHead, &ListHead} - - -/** - Initializes the head node of a doubly linked list, and returns the pointer to - the head node of the doubly linked list. - - Initializes the forward and backward links of a new linked list. After - initializing a linked list with this function, the other linked list - functions may be used to add and remove nodes from the linked list. It is up - to the caller of this function to allocate the memory for ListHead. - - If ListHead is NULL, then ASSERT(). - - @param ListHead A pointer to the head node of a new doubly linked list. - - @return ListHead - -**/ -LIST_ENTRY * -EFIAPI -InitializeListHead ( - IN LIST_ENTRY *ListHead - ); - - -/** - Adds a node to the beginning of a doubly linked list, and returns the pointer - to the head node of the doubly linked list. - - Adds the node Entry at the beginning of the doubly linked list denoted by - ListHead, and returns ListHead. - - If ListHead is NULL, then ASSERT(). - If Entry is NULL, then ASSERT(). - If ListHead was not initialized with InitializeListHead(), then ASSERT(). - If PcdMaximumLinkedListLenth is not zero, and prior to insertion the number - of nodes in ListHead, including the ListHead node, is greater than or - equal to PcdMaximumLinkedListLength, then ASSERT(). - - @param ListHead A pointer to the head node of a doubly linked list. - @param Entry A pointer to a node that is to be inserted at the beginning - of a doubly linked list. - - @return ListHead - -**/ -LIST_ENTRY * -EFIAPI -InsertHeadList ( - IN LIST_ENTRY *ListHead, - IN LIST_ENTRY *Entry - ); - - -/** - Adds a node to the end of a doubly linked list, and returns the pointer to - the head node of the doubly linked list. - - Adds the node Entry to the end of the doubly linked list denoted by ListHead, - and returns ListHead. - - If ListHead is NULL, then ASSERT(). - If Entry is NULL, then ASSERT(). - If ListHead was not initialized with InitializeListHead(), then ASSERT(). - If PcdMaximumLinkedListLenth is not zero, and prior to insertion the number - of nodes in ListHead, including the ListHead node, is greater than or - equal to PcdMaximumLinkedListLength, then ASSERT(). - - @param ListHead A pointer to the head node of a doubly linked list. - @param Entry A pointer to a node that is to be added at the end of the - doubly linked list. - - @return ListHead - -**/ -LIST_ENTRY * -EFIAPI -InsertTailList ( - IN LIST_ENTRY *ListHead, - IN LIST_ENTRY *Entry - ); - - -/** - Retrieves the first node of a doubly linked list. - - Returns the first node of a doubly linked list. List must have been - initialized with InitializeListHead(). If List is empty, then NULL is - returned. - - If List is NULL, then ASSERT(). - If List was not initialized with InitializeListHead(), then ASSERT(). - If PcdMaximumLinkedListLenth is not zero, and the number of nodes - in List, including the List node, is greater than or equal to - PcdMaximumLinkedListLength, then ASSERT(). - - @param List A pointer to the head node of a doubly linked list. - - @return The first node of a doubly linked list. - @retval NULL The list is empty. - -**/ -LIST_ENTRY * -EFIAPI -GetFirstNode ( - IN CONST LIST_ENTRY *List - ); - - -/** - Retrieves the next node of a doubly linked list. - - Returns the node of a doubly linked list that follows Node. List must have - been initialized with InitializeListHead(). If List is empty, then List is - returned. - - If List is NULL, then ASSERT(). - If Node is NULL, then ASSERT(). - If List was not initialized with InitializeListHead(), then ASSERT(). - If PcdMaximumLinkedListLenth is not zero, and List contains more than - PcdMaximumLinkedListLenth nodes, then ASSERT(). - If Node is not a node in List, then ASSERT(). - - @param List A pointer to the head node of a doubly linked list. - @param Node A pointer to a node in the doubly linked list. - - @return Pointer to the next node if one exists. Otherwise a null value which - is actually List is returned. - -**/ -LIST_ENTRY * -EFIAPI -GetNextNode ( - IN CONST LIST_ENTRY *List, - IN CONST LIST_ENTRY *Node - ); - - -/** - Checks to see if a doubly linked list is empty or not. - - Checks to see if the doubly linked list is empty. If the linked list contains - zero nodes, this function returns TRUE. Otherwise, it returns FALSE. - - If ListHead is NULL, then ASSERT(). - If ListHead was not initialized with InitializeListHead(), then ASSERT(). - If PcdMaximumLinkedListLenth is not zero, and the number of nodes - in List, including the List node, is greater than or equal to - PcdMaximumLinkedListLength, then ASSERT(). - - @param ListHead A pointer to the head node of a doubly linked list. - - @retval TRUE The linked list is empty. - @retval FALSE The linked list is not empty. - -**/ -BOOLEAN -EFIAPI -IsListEmpty ( - IN CONST LIST_ENTRY *ListHead - ); - - -/** - Determines if a node in a doubly linked list is null. - - Returns FALSE if Node is one of the nodes in the doubly linked list specified - by List. Otherwise, TRUE is returned. List must have been initialized with - InitializeListHead(). - - If List is NULL, then ASSERT(). - If Node is NULL, then ASSERT(). - If List was not initialized with InitializeListHead(), then ASSERT(). - If PcdMaximumLinkedListLenth is not zero, and the number of nodes - in List, including the List node, is greater than or equal to - PcdMaximumLinkedListLength, then ASSERT(). - If Node is not a node in List and Node is not equal to List, then ASSERT(). - - @param List A pointer to the head node of a doubly linked list. - @param Node A pointer to a node in the doubly linked list. - - @retval TRUE Node is one of the nodes in the doubly linked list. - @retval FALSE Node is not one of the nodes in the doubly linked list. - -**/ -BOOLEAN -EFIAPI -IsNull ( - IN CONST LIST_ENTRY *List, - IN CONST LIST_ENTRY *Node - ); - - -/** - Determines if a node the last node in a doubly linked list. - - Returns TRUE if Node is the last node in the doubly linked list specified by - List. Otherwise, FALSE is returned. List must have been initialized with - InitializeListHead(). - - If List is NULL, then ASSERT(). - If Node is NULL, then ASSERT(). - If List was not initialized with InitializeListHead(), then ASSERT(). - If PcdMaximumLinkedListLenth is not zero, and the number of nodes - in List, including the List node, is greater than or equal to - PcdMaximumLinkedListLength, then ASSERT(). - If Node is not a node in List, then ASSERT(). - - @param List A pointer to the head node of a doubly linked list. - @param Node A pointer to a node in the doubly linked list. - - @retval TRUE Node is the last node in the linked list. - @retval FALSE Node is not the last node in the linked list. - -**/ -BOOLEAN -EFIAPI -IsNodeAtEnd ( - IN CONST LIST_ENTRY *List, - IN CONST LIST_ENTRY *Node - ); - - -/** - Swaps the location of two nodes in a doubly linked list, and returns the - first node after the swap. - - If FirstEntry is identical to SecondEntry, then SecondEntry is returned. - Otherwise, the location of the FirstEntry node is swapped with the location - of the SecondEntry node in a doubly linked list. SecondEntry must be in the - same double linked list as FirstEntry and that double linked list must have - been initialized with InitializeListHead(). SecondEntry is returned after the - nodes are swapped. - - If FirstEntry is NULL, then ASSERT(). - If SecondEntry is NULL, then ASSERT(). - If SecondEntry and FirstEntry are not in the same linked list, then ASSERT(). - If PcdMaximumLinkedListLength is not zero, and the number of nodes in the - linked list containing the FirstEntry and SecondEntry nodes, including - the FirstEntry and SecondEntry nodes, is greater than or equal to - PcdMaximumLinkedListLength, then ASSERT(). - - @param FirstEntry A pointer to a node in a linked list. - @param SecondEntry A pointer to another node in the same linked list. - -**/ -LIST_ENTRY * -EFIAPI -SwapListEntries ( - IN LIST_ENTRY *FirstEntry, - IN LIST_ENTRY *SecondEntry - ); - - -/** - Removes a node from a doubly linked list, and returns the node that follows - the removed node. - - Removes the node Entry from a doubly linked list. It is up to the caller of - this function to release the memory used by this node if that is required. On - exit, the node following Entry in the doubly linked list is returned. If - Entry is the only node in the linked list, then the head node of the linked - list is returned. - - If Entry is NULL, then ASSERT(). - If Entry is the head node of an empty list, then ASSERT(). - If PcdMaximumLinkedListLength is not zero, and the number of nodes in the - linked list containing Entry, including the Entry node, is greater than - or equal to PcdMaximumLinkedListLength, then ASSERT(). - - @param Entry A pointer to a node in a linked list - - @return Entry - -**/ -LIST_ENTRY * -EFIAPI -RemoveEntryList ( - IN CONST LIST_ENTRY *Entry - ); - -// -// Math Services -// - -/** - Shifts a 64-bit integer left between 0 and 63 bits. The low bits are filled - with zeros. The shifted value is returned. - - This function shifts the 64-bit value Operand to the left by Count bits. The - low Count bits are set to zero. The shifted value is returned. - - If Count is greater than 63, then ASSERT(). - - @param Operand The 64-bit operand to shift left. - @param Count The number of bits to shift left. - - @return Operand << Count - -**/ -UINT64 -EFIAPI -LShiftU64 ( - IN UINT64 Operand, - IN UINTN Count - ); - - -/** - Shifts a 64-bit integer right between 0 and 63 bits. This high bits are - filled with zeros. The shifted value is returned. - - This function shifts the 64-bit value Operand to the right by Count bits. The - high Count bits are set to zero. The shifted value is returned. - - If Count is greater than 63, then ASSERT(). - - @param Operand The 64-bit operand to shift right. - @param Count The number of bits to shift right. - - @return Operand >> Count - -**/ -UINT64 -EFIAPI -RShiftU64 ( - IN UINT64 Operand, - IN UINTN Count - ); - - -/** - Shifts a 64-bit integer right between 0 and 63 bits. The high bits are filled - with original integer's bit 63. The shifted value is returned. - - This function shifts the 64-bit value Operand to the right by Count bits. The - high Count bits are set to bit 63 of Operand. The shifted value is returned. - - If Count is greater than 63, then ASSERT(). - - @param Operand The 64-bit operand to shift right. - @param Count The number of bits to shift right. - - @return Operand >> Count - -**/ -UINT64 -EFIAPI -ARShiftU64 ( - IN UINT64 Operand, - IN UINTN Count - ); - - -/** - Rotates a 32-bit integer left between 0 and 31 bits, filling the low bits - with the high bits that were rotated. - - This function rotates the 32-bit value Operand to the left by Count bits. The - low Count bits are fill with the high Count bits of Operand. The rotated - value is returned. - - If Count is greater than 31, then ASSERT(). - - @param Operand The 32-bit operand to rotate left. - @param Count The number of bits to rotate left. - - @return Operand <<< Count - -**/ -UINT32 -EFIAPI -LRotU32 ( - IN UINT32 Operand, - IN UINTN Count - ); - - -/** - Rotates a 32-bit integer right between 0 and 31 bits, filling the high bits - with the low bits that were rotated. - - This function rotates the 32-bit value Operand to the right by Count bits. - The high Count bits are fill with the low Count bits of Operand. The rotated - value is returned. - - If Count is greater than 31, then ASSERT(). - - @param Operand The 32-bit operand to rotate right. - @param Count The number of bits to rotate right. - - @return Operand >>> Count - -**/ -UINT32 -EFIAPI -RRotU32 ( - IN UINT32 Operand, - IN UINTN Count - ); - - -/** - Rotates a 64-bit integer left between 0 and 63 bits, filling the low bits - with the high bits that were rotated. - - This function rotates the 64-bit value Operand to the left by Count bits. The - low Count bits are fill with the high Count bits of Operand. The rotated - value is returned. - - If Count is greater than 63, then ASSERT(). - - @param Operand The 64-bit operand to rotate left. - @param Count The number of bits to rotate left. - - @return Operand <<< Count - -**/ -UINT64 -EFIAPI -LRotU64 ( - IN UINT64 Operand, - IN UINTN Count - ); - - -/** - Rotates a 64-bit integer right between 0 and 63 bits, filling the high bits - with the high low bits that were rotated. - - This function rotates the 64-bit value Operand to the right by Count bits. - The high Count bits are fill with the low Count bits of Operand. The rotated - value is returned. - - If Count is greater than 63, then ASSERT(). - - @param Operand The 64-bit operand to rotate right. - @param Count The number of bits to rotate right. - - @return Operand >>> Count - -**/ -UINT64 -EFIAPI -RRotU64 ( - IN UINT64 Operand, - IN UINTN Count - ); - - -/** - Returns the bit position of the lowest bit set in a 32-bit value. - - This function computes the bit position of the lowest bit set in the 32-bit - value specified by Operand. If Operand is zero, then -1 is returned. - Otherwise, a value between 0 and 31 is returned. - - @param Operand The 32-bit operand to evaluate. - - @return Position of the lowest bit set in Operand if found. - @retval -1 Operand is zero. - -**/ -INTN -EFIAPI -LowBitSet32 ( - IN UINT32 Operand - ); - - -/** - Returns the bit position of the lowest bit set in a 64-bit value. - - This function computes the bit position of the lowest bit set in the 64-bit - value specified by Operand. If Operand is zero, then -1 is returned. - Otherwise, a value between 0 and 63 is returned. - - @param Operand The 64-bit operand to evaluate. - - @return Position of the lowest bit set in Operand if found. - @retval -1 Operand is zero. - -**/ -INTN -EFIAPI -LowBitSet64 ( - IN UINT64 Operand - ); - - -/** - Returns the bit position of the highest bit set in a 32-bit value. Equivalent - to log2(x). - - This function computes the bit position of the highest bit set in the 32-bit - value specified by Operand. If Operand is zero, then -1 is returned. - Otherwise, a value between 0 and 31 is returned. - - @param Operand The 32-bit operand to evaluate. - - @return Position of the highest bit set in Operand if found. - @retval -1 Operand is zero. - -**/ -INTN -EFIAPI -HighBitSet32 ( - IN UINT32 Operand - ); - - -/** - Returns the bit position of the highest bit set in a 64-bit value. Equivalent - to log2(x). - - This function computes the bit position of the highest bit set in the 64-bit - value specified by Operand. If Operand is zero, then -1 is returned. - Otherwise, a value between 0 and 63 is returned. - - @param Operand The 64-bit operand to evaluate. - - @return Position of the highest bit set in Operand if found. - @retval -1 Operand is zero. - -**/ -INTN -EFIAPI -HighBitSet64 ( - IN UINT64 Operand - ); - - -/** - Returns the value of the highest bit set in a 32-bit value. Equivalent to - 1 << HighBitSet32(x). - - This function computes the value of the highest bit set in the 32-bit value - specified by Operand. If Operand is zero, then zero is returned. - - @param Operand The 32-bit operand to evaluate. - - @return 1 << HighBitSet32(Operand) - @retval 0 Operand is zero. - -**/ -UINT32 -EFIAPI -GetPowerOfTwo32 ( - IN UINT32 Operand - ); - - -/** - Returns the value of the highest bit set in a 64-bit value. Equivalent to - 1 << HighBitSet64(x). - - This function computes the value of the highest bit set in the 64-bit value - specified by Operand. If Operand is zero, then zero is returned. - - @param Operand The 64-bit operand to evaluate. - - @return 1 << HighBitSet64(Operand) - @retval 0 Operand is zero. - -**/ -UINT64 -EFIAPI -GetPowerOfTwo64 ( - IN UINT64 Operand - ); - - -/** - Switches the endianess of a 16-bit integer. - - This function swaps the bytes in a 16-bit unsigned value to switch the value - from little endian to big endian or vice versa. The byte swapped value is - returned. - - @param Operand A 16-bit unsigned value. - - @return The byte swaped Operand. - -**/ -UINT16 -EFIAPI -SwapBytes16 ( - IN UINT16 Value - ); - - -/** - Switches the endianess of a 32-bit integer. - - This function swaps the bytes in a 32-bit unsigned value to switch the value - from little endian to big endian or vice versa. The byte swapped value is - returned. - - @param Operand A 32-bit unsigned value. - - @return The byte swaped Operand. - -**/ -UINT32 -EFIAPI -SwapBytes32 ( - IN UINT32 Value - ); - - -/** - Switches the endianess of a 64-bit integer. - - This function swaps the bytes in a 64-bit unsigned value to switch the value - from little endian to big endian or vice versa. The byte swapped value is - returned. - - @param Operand A 64-bit unsigned value. - - @return The byte swaped Operand. - -**/ -UINT64 -EFIAPI -SwapBytes64 ( - IN UINT64 Value - ); - - -/** - Multiples a 64-bit unsigned integer by a 32-bit unsigned integer and - generates a 64-bit unsigned result. - - This function multiples the 64-bit unsigned value Multiplicand by the 32-bit - unsigned value Multiplier and generates a 64-bit unsigned result. This 64- - bit unsigned result is returned. - - If the result overflows, then ASSERT(). - - @param Multiplicand A 64-bit unsigned value. - @param Multiplier A 32-bit unsigned value. - - @return Multiplicand * Multiplier - -**/ -UINT64 -EFIAPI -MultU64x32 ( - IN UINT64 Multiplicand, - IN UINT32 Multiplier - ); - - -/** - Multiples a 64-bit unsigned integer by a 64-bit unsigned integer and - generates a 64-bit unsigned result. - - This function multiples the 64-bit unsigned value Multiplicand by the 64-bit - unsigned value Multiplier and generates a 64-bit unsigned result. This 64- - bit unsigned result is returned. - - If the result overflows, then ASSERT(). - - @param Multiplicand A 64-bit unsigned value. - @param Multiplier A 64-bit unsigned value. - - @return Multiplicand * Multiplier - -**/ -UINT64 -EFIAPI -MultU64x64 ( - IN UINT64 Multiplicand, - IN UINT64 Multiplier - ); - - -/** - Multiples a 64-bit signed integer by a 64-bit signed integer and generates a - 64-bit signed result. - - This function multiples the 64-bit signed value Multiplicand by the 64-bit - signed value Multiplier and generates a 64-bit signed result. This 64-bit - signed result is returned. - - If the result overflows, then ASSERT(). - - @param Multiplicand A 64-bit signed value. - @param Multiplier A 64-bit signed value. - - @return Multiplicand * Multiplier - -**/ -INT64 -EFIAPI -MultS64x64 ( - IN INT64 Multiplicand, - IN INT64 Multiplier - ); - - -/** - Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates - a 64-bit unsigned result. - - This function divides the 64-bit unsigned value Dividend by the 32-bit - unsigned value Divisor and generates a 64-bit unsigned quotient. This - function returns the 64-bit unsigned quotient. - - If Divisor is 0, then ASSERT(). - - @param Dividend A 64-bit unsigned value. - @param Divisor A 32-bit unsigned value. - - @return Dividend / Divisor - -**/ -UINT64 -EFIAPI -DivU64x32 ( - IN UINT64 Dividend, - IN UINT32 Divisor - ); - - -/** - Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates - a 32-bit unsigned remainder. - - This function divides the 64-bit unsigned value Dividend by the 32-bit - unsigned value Divisor and generates a 32-bit remainder. This function - returns the 32-bit unsigned remainder. - - If Divisor is 0, then ASSERT(). - - @param Dividend A 64-bit unsigned value. - @param Divisor A 32-bit unsigned value. - - @return Dividend % Divisor - -**/ -UINT32 -EFIAPI -ModU64x32 ( - IN UINT64 Dividend, - IN UINT32 Divisor - ); - - -/** - Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates - a 64-bit unsigned result and an optional 32-bit unsigned remainder. - - This function divides the 64-bit unsigned value Dividend by the 32-bit - unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder - is not NULL, then the 32-bit unsigned remainder is returned in Remainder. - This function returns the 64-bit unsigned quotient. - - If Divisor is 0, then ASSERT(). - - @param Dividend A 64-bit unsigned value. - @param Divisor A 32-bit unsigned value. - @param Remainder A pointer to a 32-bit unsigned value. This parameter is - optional and may be NULL. - - @return Dividend / Divisor - -**/ -UINT64 -EFIAPI -DivU64x32Remainder ( - IN UINT64 Dividend, - IN UINT32 Divisor, - OUT UINT32 *Remainder OPTIONAL - ); - - -/** - Divides a 64-bit unsigned integer by a 64-bit unsigned integer and generates - a 64-bit unsigned result and an optional 64-bit unsigned remainder. - - This function divides the 64-bit unsigned value Dividend by the 64-bit - unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder - is not NULL, then the 64-bit unsigned remainder is returned in Remainder. - This function returns the 64-bit unsigned quotient. - - If Divisor is 0, then ASSERT(). - - @param Dividend A 64-bit unsigned value. - @param Divisor A 64-bit unsigned value. - @param Remainder A pointer to a 64-bit unsigned value. This parameter is - optional and may be NULL. - - @return Dividend / Divisor - -**/ -UINT64 -EFIAPI -DivU64x64Remainder ( - IN UINT64 Dividend, - IN UINT64 Divisor, - OUT UINT64 *Remainder OPTIONAL - ); - - -/** - Divides a 64-bit signed integer by a 64-bit signed integer and generates a - 64-bit signed result and a optional 64-bit signed remainder. - - This function divides the 64-bit signed value Dividend by the 64-bit signed - value Divisor and generates a 64-bit signed quotient. If Remainder is not - NULL, then the 64-bit signed remainder is returned in Remainder. This - function returns the 64-bit signed quotient. - - If Divisor is 0, then ASSERT(). - - @param Dividend A 64-bit signed value. - @param Divisor A 64-bit signed value. - @param Remainder A pointer to a 64-bit signed value. This parameter is - optional and may be NULL. - - @return Dividend / Divisor - -**/ -INT64 -EFIAPI -DivS64x64Remainder ( - IN INT64 Dividend, - IN INT64 Divisor, - OUT INT64 *Remainder OPTIONAL - ); - - -/** - Reads a 16-bit value from memory that may be unaligned. - - This function returns the 16-bit value pointed to by Buffer. The function - guarantees that the read operation does not produce an alignment fault. - - If the Buffer is NULL, then ASSERT(). - - @param Buffer Pointer to a 16-bit value that may be unaligned. - - @return *Uint16 - -**/ -UINT16 -EFIAPI -ReadUnaligned16 ( - IN CONST UINT16 *Uint16 - ); - - -/** - Writes a 16-bit value to memory that may be unaligned. - - This function writes the 16-bit value specified by Value to Buffer. Value is - returned. The function guarantees that the write operation does not produce - an alignment fault. - - If the Buffer is NULL, then ASSERT(). - - @param Buffer Pointer to a 16-bit value that may be unaligned. - @param Value 16-bit value to write to Buffer. - - @return Value - -**/ -UINT16 -EFIAPI -WriteUnaligned16 ( - OUT UINT16 *Uint16, - IN UINT16 Value - ); - - -/** - Reads a 24-bit value from memory that may be unaligned. - - This function returns the 24-bit value pointed to by Buffer. The function - guarantees that the read operation does not produce an alignment fault. - - If the Buffer is NULL, then ASSERT(). - - @param Buffer Pointer to a 24-bit value that may be unaligned. - - @return The value read. - -**/ -UINT32 -EFIAPI -ReadUnaligned24 ( - IN CONST UINT32 *Buffer - ); - - -/** - Writes a 24-bit value to memory that may be unaligned. - - This function writes the 24-bit value specified by Value to Buffer. Value is - returned. The function guarantees that the write operation does not produce - an alignment fault. - - If the Buffer is NULL, then ASSERT(). - - @param Buffer Pointer to a 24-bit value that may be unaligned. - @param Value 24-bit value to write to Buffer. - - @return The value written. - -**/ -UINT32 -EFIAPI -WriteUnaligned24 ( - OUT UINT32 *Buffer, - IN UINT32 Value - ); - - -/** - Reads a 32-bit value from memory that may be unaligned. - - This function returns the 32-bit value pointed to by Buffer. The function - guarantees that the read operation does not produce an alignment fault. - - If the Buffer is NULL, then ASSERT(). - - @param Buffer Pointer to a 32-bit value that may be unaligned. - - @return *Uint32 - -**/ -UINT32 -EFIAPI -ReadUnaligned32 ( - IN CONST UINT32 *Uint32 - ); - - -/** - Writes a 32-bit value to memory that may be unaligned. - - This function writes the 32-bit value specified by Value to Buffer. Value is - returned. The function guarantees that the write operation does not produce - an alignment fault. - - If the Buffer is NULL, then ASSERT(). - - @param Buffer Pointer to a 32-bit value that may be unaligned. - @param Value 32-bit value to write to Buffer. - - @return Value - -**/ -UINT32 -EFIAPI -WriteUnaligned32 ( - OUT UINT32 *Uint32, - IN UINT32 Value - ); - - -/** - Reads a 64-bit value from memory that may be unaligned. - - This function returns the 64-bit value pointed to by Buffer. The function - guarantees that the read operation does not produce an alignment fault. - - If the Buffer is NULL, then ASSERT(). - - @param Buffer Pointer to a 64-bit value that may be unaligned. - - @return *Uint64 - -**/ -UINT64 -EFIAPI -ReadUnaligned64 ( - IN CONST UINT64 *Uint64 - ); - - -/** - Writes a 64-bit value to memory that may be unaligned. - - This function writes the 64-bit value specified by Value to Buffer. Value is - returned. The function guarantees that the write operation does not produce - an alignment fault. - - If the Buffer is NULL, then ASSERT(). - - @param Buffer Pointer to a 64-bit value that may be unaligned. - @param Value 64-bit value to write to Buffer. - - @return Value - -**/ -UINT64 -EFIAPI -WriteUnaligned64 ( - OUT UINT64 *Uint64, - IN UINT64 Value - ); - - -// -// Bit Field Functions -// - -/** - Returns a bit field from an 8-bit value. - - Returns the bitfield specified by the StartBit and the EndBit from Operand. - - If 8-bit operations are not supported, then ASSERT(). - If StartBit is greater than 7, then ASSERT(). - If EndBit is greater than 7, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..7. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..7. - - @return The bit field read. - -**/ -UINT8 -EFIAPI -BitFieldRead8 ( - IN UINT8 Operand, - IN UINTN StartBit, - IN UINTN EndBit - ); - - -/** - Writes a bit field to an 8-bit value, and returns the result. - - Writes Value to the bit field specified by the StartBit and the EndBit in - Operand. All other bits in Operand are preserved. The new 8-bit value is - returned. - - If 8-bit operations are not supported, then ASSERT(). - If StartBit is greater than 7, then ASSERT(). - If EndBit is greater than 7, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..7. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..7. - @param Value New value of the bit field. - - @return The new 8-bit value. - -**/ -UINT8 -EFIAPI -BitFieldWrite8 ( - IN UINT8 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT8 Value - ); - - -/** - Reads a bit field from an 8-bit value, performs a bitwise OR, and returns the - result. - - Performs a bitwise inclusive OR between the bit field specified by StartBit - and EndBit in Operand and the value specified by OrData. All other bits in - Operand are preserved. The new 8-bit value is returned. - - If 8-bit operations are not supported, then ASSERT(). - If StartBit is greater than 7, then ASSERT(). - If EndBit is greater than 7, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..7. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..7. - @param OrData The value to OR with the read value from the value - - @return The new 8-bit value. - -**/ -UINT8 -EFIAPI -BitFieldOr8 ( - IN UINT8 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT8 OrData - ); - - -/** - Reads a bit field from an 8-bit value, performs a bitwise AND, and returns - the result. - - Performs a bitwise AND between the bit field specified by StartBit and EndBit - in Operand and the value specified by AndData. All other bits in Operand are - preserved. The new 8-bit value is returned. - - If 8-bit operations are not supported, then ASSERT(). - If StartBit is greater than 7, then ASSERT(). - If EndBit is greater than 7, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..7. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..7. - @param AndData The value to AND with the read value from the value. - - @return The new 8-bit value. - -**/ -UINT8 -EFIAPI -BitFieldAnd8 ( - IN UINT8 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT8 AndData - ); - - -/** - Reads a bit field from an 8-bit value, performs a bitwise AND followed by a - bitwise OR, and returns the result. - - Performs a bitwise AND between the bit field specified by StartBit and EndBit - in Operand and the value specified by AndData, followed by a bitwise - inclusive OR with value specified by OrData. All other bits in Operand are - preserved. The new 8-bit value is returned. - - If 8-bit operations are not supported, then ASSERT(). - If StartBit is greater than 7, then ASSERT(). - If EndBit is greater than 7, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..7. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..7. - @param AndData The value to AND with the read value from the value. - @param OrData The value to OR with the result of the AND operation. - - @return The new 8-bit value. - -**/ -UINT8 -EFIAPI -BitFieldAndThenOr8 ( - IN UINT8 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT8 AndData, - IN UINT8 OrData - ); - - -/** - Returns a bit field from a 16-bit value. - - Returns the bitfield specified by the StartBit and the EndBit from Operand. - - If 16-bit operations are not supported, then ASSERT(). - If StartBit is greater than 15, then ASSERT(). - If EndBit is greater than 15, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..15. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..15. - - @return The bit field read. - -**/ -UINT16 -EFIAPI -BitFieldRead16 ( - IN UINT16 Operand, - IN UINTN StartBit, - IN UINTN EndBit - ); - - -/** - Writes a bit field to a 16-bit value, and returns the result. - - Writes Value to the bit field specified by the StartBit and the EndBit in - Operand. All other bits in Operand are preserved. The new 16-bit value is - returned. - - If 16-bit operations are not supported, then ASSERT(). - If StartBit is greater than 15, then ASSERT(). - If EndBit is greater than 15, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..15. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..15. - @param Value New value of the bit field. - - @return The new 16-bit value. - -**/ -UINT16 -EFIAPI -BitFieldWrite16 ( - IN UINT16 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT16 Value - ); - - -/** - Reads a bit field from a 16-bit value, performs a bitwise OR, and returns the - result. - - Performs a bitwise inclusive OR between the bit field specified by StartBit - and EndBit in Operand and the value specified by OrData. All other bits in - Operand are preserved. The new 16-bit value is returned. - - If 16-bit operations are not supported, then ASSERT(). - If StartBit is greater than 15, then ASSERT(). - If EndBit is greater than 15, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..15. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..15. - @param OrData The value to OR with the read value from the value - - @return The new 16-bit value. - -**/ -UINT16 -EFIAPI -BitFieldOr16 ( - IN UINT16 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT16 OrData - ); - - -/** - Reads a bit field from a 16-bit value, performs a bitwise AND, and returns - the result. - - Performs a bitwise AND between the bit field specified by StartBit and EndBit - in Operand and the value specified by AndData. All other bits in Operand are - preserved. The new 16-bit value is returned. - - If 16-bit operations are not supported, then ASSERT(). - If StartBit is greater than 15, then ASSERT(). - If EndBit is greater than 15, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..15. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..15. - @param AndData The value to AND with the read value from the value - - @return The new 16-bit value. - -**/ -UINT16 -EFIAPI -BitFieldAnd16 ( - IN UINT16 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT16 AndData - ); - - -/** - Reads a bit field from a 16-bit value, performs a bitwise AND followed by a - bitwise OR, and returns the result. - - Performs a bitwise AND between the bit field specified by StartBit and EndBit - in Operand and the value specified by AndData, followed by a bitwise - inclusive OR with value specified by OrData. All other bits in Operand are - preserved. The new 16-bit value is returned. - - If 16-bit operations are not supported, then ASSERT(). - If StartBit is greater than 15, then ASSERT(). - If EndBit is greater than 15, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..15. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..15. - @param AndData The value to AND with the read value from the value. - @param OrData The value to OR with the result of the AND operation. - - @return The new 16-bit value. - -**/ -UINT16 -EFIAPI -BitFieldAndThenOr16 ( - IN UINT16 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT16 AndData, - IN UINT16 OrData - ); - - -/** - Returns a bit field from a 32-bit value. - - Returns the bitfield specified by the StartBit and the EndBit from Operand. - - If 32-bit operations are not supported, then ASSERT(). - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - - @return The bit field read. - -**/ -UINT32 -EFIAPI -BitFieldRead32 ( - IN UINT32 Operand, - IN UINTN StartBit, - IN UINTN EndBit - ); - - -/** - Writes a bit field to a 32-bit value, and returns the result. - - Writes Value to the bit field specified by the StartBit and the EndBit in - Operand. All other bits in Operand are preserved. The new 32-bit value is - returned. - - If 32-bit operations are not supported, then ASSERT(). - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - @param Value New value of the bit field. - - @return The new 32-bit value. - -**/ -UINT32 -EFIAPI -BitFieldWrite32 ( - IN UINT32 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT32 Value - ); - - -/** - Reads a bit field from a 32-bit value, performs a bitwise OR, and returns the - result. - - Performs a bitwise inclusive OR between the bit field specified by StartBit - and EndBit in Operand and the value specified by OrData. All other bits in - Operand are preserved. The new 32-bit value is returned. - - If 32-bit operations are not supported, then ASSERT(). - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - @param OrData The value to OR with the read value from the value - - @return The new 32-bit value. - -**/ -UINT32 -EFIAPI -BitFieldOr32 ( - IN UINT32 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT32 OrData - ); - - -/** - Reads a bit field from a 32-bit value, performs a bitwise AND, and returns - the result. - - Performs a bitwise AND between the bit field specified by StartBit and EndBit - in Operand and the value specified by AndData. All other bits in Operand are - preserved. The new 32-bit value is returned. - - If 32-bit operations are not supported, then ASSERT(). - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - @param AndData The value to AND with the read value from the value - - @return The new 32-bit value. - -**/ -UINT32 -EFIAPI -BitFieldAnd32 ( - IN UINT32 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT32 AndData - ); - - -/** - Reads a bit field from a 32-bit value, performs a bitwise AND followed by a - bitwise OR, and returns the result. - - Performs a bitwise AND between the bit field specified by StartBit and EndBit - in Operand and the value specified by AndData, followed by a bitwise - inclusive OR with value specified by OrData. All other bits in Operand are - preserved. The new 32-bit value is returned. - - If 32-bit operations are not supported, then ASSERT(). - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - @param AndData The value to AND with the read value from the value. - @param OrData The value to OR with the result of the AND operation. - - @return The new 32-bit value. - -**/ -UINT32 -EFIAPI -BitFieldAndThenOr32 ( - IN UINT32 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT32 AndData, - IN UINT32 OrData - ); - - -/** - Returns a bit field from a 64-bit value. - - Returns the bitfield specified by the StartBit and the EndBit from Operand. - - If 64-bit operations are not supported, then ASSERT(). - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - - @return The bit field read. - -**/ -UINT64 -EFIAPI -BitFieldRead64 ( - IN UINT64 Operand, - IN UINTN StartBit, - IN UINTN EndBit - ); - - -/** - Writes a bit field to a 64-bit value, and returns the result. - - Writes Value to the bit field specified by the StartBit and the EndBit in - Operand. All other bits in Operand are preserved. The new 64-bit value is - returned. - - If 64-bit operations are not supported, then ASSERT(). - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - @param Value New value of the bit field. - - @return The new 64-bit value. - -**/ -UINT64 -EFIAPI -BitFieldWrite64 ( - IN UINT64 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT64 Value - ); - - -/** - Reads a bit field from a 64-bit value, performs a bitwise OR, and returns the - result. - - Performs a bitwise inclusive OR between the bit field specified by StartBit - and EndBit in Operand and the value specified by OrData. All other bits in - Operand are preserved. The new 64-bit value is returned. - - If 64-bit operations are not supported, then ASSERT(). - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - @param OrData The value to OR with the read value from the value - - @return The new 64-bit value. - -**/ -UINT64 -EFIAPI -BitFieldOr64 ( - IN UINT64 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT64 OrData - ); - - -/** - Reads a bit field from a 64-bit value, performs a bitwise AND, and returns - the result. - - Performs a bitwise AND between the bit field specified by StartBit and EndBit - in Operand and the value specified by AndData. All other bits in Operand are - preserved. The new 64-bit value is returned. - - If 64-bit operations are not supported, then ASSERT(). - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - @param AndData The value to AND with the read value from the value - - @return The new 64-bit value. - -**/ -UINT64 -EFIAPI -BitFieldAnd64 ( - IN UINT64 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT64 AndData - ); - - -/** - Reads a bit field from a 64-bit value, performs a bitwise AND followed by a - bitwise OR, and returns the result. - - Performs a bitwise AND between the bit field specified by StartBit and EndBit - in Operand and the value specified by AndData, followed by a bitwise - inclusive OR with value specified by OrData. All other bits in Operand are - preserved. The new 64-bit value is returned. - - If 64-bit operations are not supported, then ASSERT(). - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Operand Operand on which to perform the bitfield operation. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - @param AndData The value to AND with the read value from the value. - @param OrData The value to OR with the result of the AND operation. - - @return The new 64-bit value. - -**/ -UINT64 -EFIAPI -BitFieldAndThenOr64 ( - IN UINT64 Operand, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT64 AndData, - IN UINT64 OrData - ); - - -// -// Base Library Synchronization Functions -// - -/** - Retrieves the architecture specific spin lock alignment requirements for - optimal spin lock performance. - - This function retrieves the spin lock alignment requirements for optimal - performance on a given CPU architecture. The spin lock alignment must be a - power of two and is returned by this function. If there are no alignment - requirements, then 1 must be returned. The spin lock synchronization - functions must function correctly if the spin lock size and alignment values - returned by this function are not used at all. These values are hints to the - consumers of the spin lock synchronization functions to obtain optimal spin - lock performance. - - @return The architecture specific spin lock alignment. - -**/ -UINTN -EFIAPI -GetSpinLockProperties ( - VOID - ); - - -/** - Initializes a spin lock to the released state and returns the spin lock. - - This function initializes the spin lock specified by SpinLock to the released - state, and returns SpinLock. Optimal performance can be achieved by calling - GetSpinLockProperties() to determine the size and alignment requirements for - SpinLock. - - If SpinLock is NULL, then ASSERT(). - - @param SpinLock A pointer to the spin lock to initialize to the released - state. - - @return SpinLock - -**/ -SPIN_LOCK * -EFIAPI -InitializeSpinLock ( - IN SPIN_LOCK *SpinLock - ); - - -/** - Waits until a spin lock can be placed in the acquired state. - - This function checks the state of the spin lock specified by SpinLock. If - SpinLock is in the released state, then this function places SpinLock in the - acquired state and returns SpinLock. Otherwise, this function waits - indefinitely for the spin lock to be released, and then places it in the - acquired state and returns SpinLock. All state transitions of SpinLock must - be performed using MP safe mechanisms. - - If SpinLock is NULL, then ASSERT(). - If SpinLock was not initialized with InitializeSpinLock(), then ASSERT(). - If PcdSpinLockTimeout is not zero, and SpinLock is can not be acquired in - PcdSpinLockTimeout microseconds, then ASSERT(). - - @param SpinLock A pointer to the spin lock to place in the acquired state. - - @return SpinLock - -**/ -SPIN_LOCK * -EFIAPI -AcquireSpinLock ( - IN SPIN_LOCK *SpinLock - ); - - -/** - Attempts to place a spin lock in the acquired state. - - This function checks the state of the spin lock specified by SpinLock. If - SpinLock is in the released state, then this function places SpinLock in the - acquired state and returns TRUE. Otherwise, FALSE is returned. All state - transitions of SpinLock must be performed using MP safe mechanisms. - - If SpinLock is NULL, then ASSERT(). - If SpinLock was not initialized with InitializeSpinLock(), then ASSERT(). - - @param SpinLock A pointer to the spin lock to place in the acquired state. - - @retval TRUE SpinLock was placed in the acquired state. - @retval FALSE SpinLock could not be acquired. - -**/ -BOOLEAN -EFIAPI -AcquireSpinLockOrFail ( - IN SPIN_LOCK *SpinLock - ); - - -/** - Releases a spin lock. - - This function places the spin lock specified by SpinLock in the release state - and returns SpinLock. - - If SpinLock is NULL, then ASSERT(). - If SpinLock was not initialized with InitializeSpinLock(), then ASSERT(). - - @param SpinLock A pointer to the spin lock to release. - - @return SpinLock - -**/ -SPIN_LOCK * -EFIAPI -ReleaseSpinLock ( - IN SPIN_LOCK *SpinLock - ); - - -/** - Performs an atomic increment of an 32-bit unsigned integer. - - Performs an atomic increment of the 32-bit unsigned integer specified by - Value and returns the incremented value. The increment operation must be - performed using MP safe mechanisms. The state of the return value is not - guaranteed to be MP safe. - - If Value is NULL, then ASSERT(). - - @param Value A pointer to the 32-bit value to increment. - - @return The incremented value. - -**/ -UINT32 -EFIAPI -InterlockedIncrement ( - IN UINT32 *Value - ); - - -/** - Performs an atomic decrement of an 32-bit unsigned integer. - - Performs an atomic decrement of the 32-bit unsigned integer specified by - Value and returns the decremented value. The decrement operation must be - performed using MP safe mechanisms. The state of the return value is not - guaranteed to be MP safe. - - If Value is NULL, then ASSERT(). - - @param Value A pointer to the 32-bit value to decrement. - - @return The decremented value. - -**/ -UINT32 -EFIAPI -InterlockedDecrement ( - IN UINT32 *Value - ); - - -/** - Performs an atomic compare exchange operation on a 32-bit unsigned integer. - - Performs an atomic compare exchange operation on the 32-bit unsigned integer - specified by Value. If Value is equal to CompareValue, then Value is set to - ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue, - then Value is returned. The compare exchange operation must be performed using - MP safe mechanisms. - - If Value is NULL, then ASSERT(). - - @param Value A pointer to the 32-bit value for the compare exchange - operation. - @param CompareValue 32-bit value used in compare operation. - @param ExchangeValue 32-bit value used in exchange operation. - - @return The original *Value before exchange. - -**/ -UINT32 -EFIAPI -InterlockedCompareExchange32 ( - IN OUT UINT32 *Value, - IN UINT32 CompareValue, - IN UINT32 ExchangeValue - ); - - -/** - Performs an atomic compare exchange operation on a 64-bit unsigned integer. - - Performs an atomic compare exchange operation on the 64-bit unsigned integer specified - by Value. If Value is equal to CompareValue, then Value is set to ExchangeValue and - CompareValue is returned. If Value is not equal to CompareValue, then Value is returned. - The compare exchange operation must be performed using MP safe mechanisms. - - If Value is NULL, then ASSERT(). - - @param Value A pointer to the 64-bit value for the compare exchange - operation. - @param CompareValue 64-bit value used in compare operation. - @param ExchangeValue 64-bit value used in exchange operation. - - @return The original *Value before exchange. - -**/ -UINT64 -EFIAPI -InterlockedCompareExchange64 ( - IN OUT UINT64 *Value, - IN UINT64 CompareValue, - IN UINT64 ExchangeValue - ); - - -/** - Performs an atomic compare exchange operation on a pointer value. - - Performs an atomic compare exchange operation on the pointer value specified - by Value. If Value is equal to CompareValue, then Value is set to - ExchangeValue and CompareValue is returned. If Value is not equal to - CompareValue, then Value is returned. The compare exchange operation must be - performed using MP safe mechanisms. - - If Value is NULL, then ASSERT(). - - @param Value A pointer to the pointer value for the compare exchange - operation. - @param CompareValue Pointer value used in compare operation. - @param ExchangeValue Pointer value used in exchange operation. - -**/ -VOID * -EFIAPI -InterlockedCompareExchangePointer ( - IN OUT VOID **Value, - IN VOID *CompareValue, - IN VOID *ExchangeValue - ); - - -// -// Base Library Checksum Functions -// - -/** - Calculate the sum of all elements in a buffer in unit of UINT8. - During calculation, the carry bits are dropped. - - This function calculates the sum of all elements in a buffer - in unit of UINT8. The carry bits in result of addition are dropped. - The result is returned as UINT8. If Length is Zero, then Zero is - returned. - - If Buffer is NULL, then ASSERT(). - If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). - - @param Buffer Pointer to the buffer to carry out the sum operation. - @param Length The size, in bytes, of Buffer . - - @return Sum The sum of Buffer with carry bits dropped during additions. - -**/ -UINT8 -EFIAPI -CalculateSum8 ( - IN CONST UINT8 *Buffer, - IN UINTN Length - ); - - -/** - Returns the two's complement checksum of all elements in a buffer - of 8-bit values. - - This function first calculates the sum of the 8-bit values in the - buffer specified by Buffer and Length. The carry bits in the result - of addition are dropped. Then, the two's complement of the sum is - returned. If Length is 0, then 0 is returned. - - If Buffer is NULL, then ASSERT(). - If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). - - - @param Buffer Pointer to the buffer to carry out the checksum operation. - @param Length The size, in bytes, of Buffer. - - @return Checksum The 2's complement checksum of Buffer. - -**/ -UINT8 -EFIAPI -CalculateCheckSum8 ( - IN CONST UINT8 *Buffer, - IN UINTN Length - ); - - -/** - Returns the sum of all elements in a buffer of 16-bit values. During - calculation, the carry bits are dropped. - - This function calculates the sum of the 16-bit values in the buffer - specified by Buffer and Length. The carry bits in result of addition are dropped. - The 16-bit result is returned. If Length is 0, then 0 is returned. - - If Buffer is NULL, then ASSERT(). - If Buffer is not aligned on a 16-bit boundary, then ASSERT(). - If Length is not aligned on a 16-bit boundary, then ASSERT(). - If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). - - @param Buffer Pointer to the buffer to carry out the sum operation. - @param Length The size, in bytes, of Buffer. - - @return Sum The sum of Buffer with carry bits dropped during additions. - -**/ -UINT16 -EFIAPI -CalculateSum16 ( - IN CONST UINT16 *Buffer, - IN UINTN Length - ); - - -/** - Returns the two's complement checksum of all elements in a buffer of - 16-bit values. - - This function first calculates the sum of the 16-bit values in the buffer - specified by Buffer and Length. The carry bits in the result of addition - are dropped. Then, the two's complement of the sum is returned. If Length - is 0, then 0 is returned. - - If Buffer is NULL, then ASSERT(). - If Buffer is not aligned on a 16-bit boundary, then ASSERT(). - If Length is not aligned on a 16-bit boundary, then ASSERT(). - If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). - - @param Buffer Pointer to the buffer to carry out the checksum operation. - @param Length The size, in bytes, of Buffer. - - @return Checksum The 2's complement checksum of Buffer. - -**/ -UINT16 -EFIAPI -CalculateCheckSum16 ( - IN CONST UINT16 *Buffer, - IN UINTN Length - ); - - -/** - Returns the sum of all elements in a buffer of 32-bit values. During - calculation, the carry bits are dropped. - - This function calculates the sum of the 32-bit values in the buffer - specified by Buffer and Length. The carry bits in result of addition are dropped. - The 32-bit result is returned. If Length is 0, then 0 is returned. - - If Buffer is NULL, then ASSERT(). - If Buffer is not aligned on a 32-bit boundary, then ASSERT(). - If Length is not aligned on a 32-bit boundary, then ASSERT(). - If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). - - @param Buffer Pointer to the buffer to carry out the sum operation. - @param Length The size, in bytes, of Buffer. - - @return Sum The sum of Buffer with carry bits dropped during additions. - -**/ -UINT32 -EFIAPI -CalculateSum32 ( - IN CONST UINT32 *Buffer, - IN UINTN Length - ); - - -/** - Returns the two's complement checksum of all elements in a buffer of - 32-bit values. - - This function first calculates the sum of the 32-bit values in the buffer - specified by Buffer and Length. The carry bits in the result of addition - are dropped. Then, the two's complement of the sum is returned. If Length - is 0, then 0 is returned. - - If Buffer is NULL, then ASSERT(). - If Buffer is not aligned on a 32-bit boundary, then ASSERT(). - If Length is not aligned on a 32-bit boundary, then ASSERT(). - If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). - - @param Buffer Pointer to the buffer to carry out the checksum operation. - @param Length The size, in bytes, of Buffer. - - @return Checksum The 2's complement checksum of Buffer. - -**/ -UINT32 -EFIAPI -CalculateCheckSum32 ( - IN CONST UINT32 *Buffer, - IN UINTN Length - ); - - -/** - Returns the sum of all elements in a buffer of 64-bit values. During - calculation, the carry bits are dropped. - - This function calculates the sum of the 64-bit values in the buffer - specified by Buffer and Length. The carry bits in result of addition are dropped. - The 64-bit result is returned. If Length is 0, then 0 is returned. - - If Buffer is NULL, then ASSERT(). - If Buffer is not aligned on a 64-bit boundary, then ASSERT(). - If Length is not aligned on a 64-bit boundary, then ASSERT(). - If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). - - @param Buffer Pointer to the buffer to carry out the sum operation. - @param Length The size, in bytes, of Buffer. - - @return Sum The sum of Buffer with carry bits dropped during additions. - -**/ -UINT64 -EFIAPI -CalculateSum64 ( - IN CONST UINT64 *Buffer, - IN UINTN Length - ); - - -/** - Returns the two's complement checksum of all elements in a buffer of - 64-bit values. - - This function first calculates the sum of the 64-bit values in the buffer - specified by Buffer and Length. The carry bits in the result of addition - are dropped. Then, the two's complement of the sum is returned. If Length - is 0, then 0 is returned. - - If Buffer is NULL, then ASSERT(). - If Buffer is not aligned on a 64-bit boundary, then ASSERT(). - If Length is not aligned on a 64-bit boundary, then ASSERT(). - If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). - - @param Buffer Pointer to the buffer to carry out the checksum operation. - @param Length The size, in bytes, of Buffer. - - @return Checksum The 2's complement checksum of Buffer. - -**/ -UINT64 -EFIAPI -CalculateCheckSum64 ( - IN CONST UINT64 *Buffer, - IN UINTN Length - ); - - -// -// Base Library CPU Functions -// -typedef -VOID -(EFIAPI *SWITCH_STACK_ENTRY_POINT) ( - IN VOID *Context1, OPTIONAL - IN VOID *Context2 OPTIONAL - ); - - -/** - Used to serialize load and store operations. - - All loads and stores that proceed calls to this function are guaranteed to be - globally visible when this function returns. - -**/ -VOID -EFIAPI -MemoryFence ( - VOID - ); - - -/** - Saves the current CPU context that can be restored with a call to LongJump() - and returns 0. - - Saves the current CPU context in the buffer specified by JumpBuffer and - returns 0. The initial call to SetJump() must always return 0. Subsequent - calls to LongJump() cause a non-zero value to be returned by SetJump(). - - If JumpBuffer is NULL, then ASSERT(). - For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT(). - - @param JumpBuffer A pointer to CPU context buffer. - - @retval 0 Indicates a return from SetJump(). - -**/ -UINTN -EFIAPI -SetJump ( - OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer - ); - - -/** - Restores the CPU context that was saved with SetJump(). - - Restores the CPU context from the buffer specified by JumpBuffer. This - function never returns to the caller. Instead is resumes execution based on - the state of JumpBuffer. - - If JumpBuffer is NULL, then ASSERT(). - For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT(). - If Value is 0, then ASSERT(). - - @param JumpBuffer A pointer to CPU context buffer. - @param Value The value to return when the SetJump() context is - restored and must be non-zero. - -**/ -VOID -EFIAPI -LongJump ( - IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, - IN UINTN Value - ); - - -/** - Enables CPU interrupts. - - Enables CPU interrupts. - -**/ -VOID -EFIAPI -EnableInterrupts ( - VOID - ); - - -/** - Disables CPU interrupts. - - Disables CPU interrupts. - -**/ -VOID -EFIAPI -DisableInterrupts ( - VOID - ); - - -/** - Disables CPU interrupts and returns the interrupt state prior to the disable - operation. - - Disables CPU interrupts and returns the interrupt state prior to the disable - operation. - - @retval TRUE CPU interrupts were enabled on entry to this call. - @retval FALSE CPU interrupts were disabled on entry to this call. - -**/ -BOOLEAN -EFIAPI -SaveAndDisableInterrupts ( - VOID - ); - - -/** - Enables CPU interrupts for the smallest window required to capture any - pending interrupts. - - Enables CPU interrupts for the smallest window required to capture any - pending interrupts. - -**/ -VOID -EFIAPI -EnableDisableInterrupts ( - VOID - ); - - -/** - Retrieves the current CPU interrupt state. - - Retrieves the current CPU interrupt state. Returns TRUE is interrupts are - currently enabled. Otherwise returns FALSE. - - @retval TRUE CPU interrupts are enabled. - @retval FALSE CPU interrupts are disabled. - -**/ -BOOLEAN -EFIAPI -GetInterruptState ( - VOID - ); - - -/** - Set the current CPU interrupt state. - - Sets the current CPU interrupt state to the state specified by - InterruptState. If InterruptState is TRUE, then interrupts are enabled. If - InterruptState is FALSE, then interrupts are disabled. InterruptState is - returned. - - @param InterruptState TRUE if interrupts should enabled. FALSE if - interrupts should be disabled. - - @return InterruptState - -**/ -BOOLEAN -EFIAPI -SetInterruptState ( - IN BOOLEAN InterruptState - ); - - -/** - Places the CPU in a sleep state until an interrupt is received. - - Places the CPU in a sleep state until an interrupt is received. If interrupts - are disabled prior to calling this function, then the CPU will be placed in a - sleep state indefinitely. - -**/ -VOID -EFIAPI -CpuSleep ( - VOID - ); - - -/** - Requests CPU to pause for a short period of time. - - Requests CPU to pause for a short period of time. Typically used in MP - systems to prevent memory starvation while waiting for a spin lock. - -**/ -VOID -EFIAPI -CpuPause ( - VOID - ); - - -/** - Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU. - - Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU. - -**/ -VOID -EFIAPI -CpuFlushTlb ( - VOID - ); - - -/** - Transfers control to a function starting with a new stack. - - Transfers control to the function specified by EntryPoint using the - new stack specified by NewStack and passing in the parameters specified - by Context1 and Context2. Context1 and Context2 are optional and may - be NULL. The function EntryPoint must never return. This function - supports a variable number of arguments following the NewStack parameter. - These additional arguments are ignored on IA-32, x64, and EBC. - IPF CPUs expect one additional parameter of type VOID * that specifies - the new backing store pointer. - - If EntryPoint is NULL, then ASSERT(). - If NewStack is NULL, then ASSERT(). - - @param EntryPoint A pointer to function to call with the new stack. - @param Context1 A pointer to the context to pass into the EntryPoint - function. - @param Context2 A pointer to the context to pass into the EntryPoint - function. - @param NewStack A pointer to the new stack to use for the EntryPoint - function. - -**/ -VOID -EFIAPI -SwitchStack ( - IN SWITCH_STACK_ENTRY_POINT EntryPoint, - IN VOID *Context1, OPTIONAL - IN VOID *Context2, OPTIONAL - IN VOID *NewStack, - ... - ); - - -/** - Generates a breakpoint on the CPU. - - Generates a breakpoint on the CPU. The breakpoint must be implemented such - that code can resume normal execution after the breakpoint. - -**/ -VOID -EFIAPI -CpuBreakpoint ( - VOID - ); - - -/** - Executes an infinite loop. - - Forces the CPU to execute an infinite loop. A debugger may be used to skip - past the loop and the code that follows the loop must execute properly. This - implies that the infinite loop must not cause the code that follow it to be - optimized away. - -**/ -VOID -EFIAPI -CpuDeadLoop ( - VOID - ); - - -#if defined (MDE_CPU_IPF) - -/** - Flush a range of cache lines in the cache coherency domain of the calling - CPU. - - Invalidates the cache lines specified by Address and Length. If Address is - not aligned on a cache line boundary, then entire cache line containing - Address is invalidated. If Address + Length is not aligned on a cache line - boundary, then the entire instruction cache line containing Address + Length - -1 is invalidated. This function may choose to invalidate the entire - instruction cache if that is more efficient than invalidating the specified - range. If Length is 0, the no instruction cache lines are invalidated. - Address is returned. - - If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT(). - - @param Address The base address of the instruction lines to invalidate. If - the CPU is in a physical addressing mode, then Address is a - physical address. If the CPU is in a virtual addressing mode, - then Address is a virtual address. - - @param Length The number of bytes to invalidate from the instruction cache. - - @return Address - -**/ -VOID * -EFIAPI -IpfFlushCacheRange ( - IN VOID *Address, - IN UINTN Length - ); - - -/** - Executes a FC instruction - Executes a FC instruction on the cache line specified by Address. - The cache line size affected is at least 32-bytes (aligned on a 32-byte boundary). - An implementation may flush a larger region. This function is only available on IPF. - - @param Address The Address of cache line to be flushed. - - @return The address of FC instruction executed. - -**/ -UINT64 -EFIAPI -AsmFc ( - IN UINT64 Address - ); - - -/** - Executes a FC.I instruction. - Executes a FC.I instruction on the cache line specified by Address. - The cache line size affected is at least 32-bytes (aligned on a 32-byte boundary). - An implementation may flush a larger region. This function is only available on IPF. - - @param Address The Address of cache line to be flushed. - - @return The address of FC.I instruction executed. - -**/ -UINT64 -EFIAPI -AsmFci ( - IN UINT64 Address - ); - - -/** - Reads the current value of a Processor Identifier Register (CPUID). - The Index of largest implemented CPUID (One less than the number of implemented CPUID - registers) is determined by CPUID [3] bits {7:0}. - No parameter checking is performed on Index. If the Index value is beyond the - implemented CPUID register range, a Reserved Register/Field fault may occur. The caller - must either guarantee that Index is valid, or the caller must set up fault handlers to - catch the faults. This function is only available on IPF. - - @param Index The 8-bit Processor Identifier Register index to read. - - @return The current value of Processor Identifier Register specified by Index. - -**/ -UINT64 -EFIAPI -AsmReadCpuid ( - IN UINT8 Index - ); - - -/** - Reads the current value of 64-bit Processor Status Register (PSR). - This function is only available on IPF. - - @return The current value of PSR. - -**/ -UINT64 -EFIAPI -AsmReadPsr ( - VOID - ); - - -/** - Writes the current value of 64-bit Processor Status Register (PSR). - No parameter checking is performed on Value. All bits of Value corresponding to - reserved fields of PSR must be 0 or a Reserved Register/Field fault may occur. The caller must either guarantee that Value is valid, or the caller must set up fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to PSR. - - @return The 64-bit value written to the PSR. - -**/ -UINT64 -EFIAPI -AsmWritePsr ( - IN UINT64 Value - ); - - -/** - Reads the current value of 64-bit Kernel Register #0 (KR0). - This function is only available on IPF. - - @return The current value of KR0. - -**/ -UINT64 -EFIAPI -AsmReadKr0 ( - VOID - ); - - -/** - Reads the current value of 64-bit Kernel Register #1 (KR1). - This function is only available on IPF. - - @return The current value of KR1. - -**/ -UINT64 -EFIAPI -AsmReadKr1 ( - VOID - ); - - -/** - Reads the current value of 64-bit Kernel Register #2 (KR2). - This function is only available on IPF. - - @return The current value of KR2. - -**/ -UINT64 -EFIAPI -AsmReadKr2 ( - VOID - ); - - -/** - Reads the current value of 64-bit Kernel Register #3 (KR3). - This function is only available on IPF. - - @return The current value of KR3. - -**/ -UINT64 -EFIAPI -AsmReadKr3 ( - VOID - ); - - -/** - Reads the current value of 64-bit Kernel Register #4 (KR4). - This function is only available on IPF. - - @return The current value of KR4. - -**/ -UINT64 -EFIAPI -AsmReadKr4 ( - VOID - ); - - -/** - Reads the current value of 64-bit Kernel Register #5 (KR5). - This function is only available on IPF. - - @return The current value of KR5. - -**/ -UINT64 -EFIAPI -AsmReadKr5 ( - VOID - ); - - -/** - Reads the current value of 64-bit Kernel Register #6 (KR6). - This function is only available on IPF. - - @return The current value of KR6. - -**/ -UINT64 -EFIAPI -AsmReadKr6 ( - VOID - ); - - -/** - Reads the current value of 64-bit Kernel Register #7 (KR7). - This function is only available on IPF. - - @return The current value of KR7. - -**/ -UINT64 -EFIAPI -AsmReadKr7 ( - VOID - ); - - -/** - Write the current value of 64-bit Kernel Register #0 (KR0). - This function is only available on IPF. - - @param Value The 64-bit value to write to KR0. - - @return The 64-bit value written to the KR0. - -**/ -UINT64 -EFIAPI -AsmWriteKr0 ( - IN UINT64 Value - ); - - -/** - Write the current value of 64-bit Kernel Register #1 (KR1). - This function is only available on IPF. - - @param Value The 64-bit value to write to KR1. - - @return The 64-bit value written to the KR1. - -**/ -UINT64 -EFIAPI -AsmWriteKr1 ( - IN UINT64 Value - ); - - -/** - Write the current value of 64-bit Kernel Register #2 (KR2). - This function is only available on IPF. - - @param Value The 64-bit value to write to KR2. - - @return The 64-bit value written to the KR2. - -**/ -UINT64 -EFIAPI -AsmWriteKr2 ( - IN UINT64 Value - ); - - -/** - Write the current value of 64-bit Kernel Register #3 (KR3). - This function is only available on IPF. - - @param Value The 64-bit value to write to KR3. - - @return The 64-bit value written to the KR3. - -**/ -UINT64 -EFIAPI -AsmWriteKr3 ( - IN UINT64 Value - ); - - -/** - Write the current value of 64-bit Kernel Register #4 (KR4). - This function is only available on IPF. - - @param Value The 64-bit value to write to KR4. - - @return The 64-bit value written to the KR4. - -**/ -UINT64 -EFIAPI -AsmWriteKr4 ( - IN UINT64 Value - ); - - -/** - Write the current value of 64-bit Kernel Register #5 (KR5). - This function is only available on IPF. - - @param Value The 64-bit value to write to KR5. - - @return The 64-bit value written to the KR5. - -**/ -UINT64 -EFIAPI -AsmWriteKr5 ( - IN UINT64 Value - ); - - -/** - Write the current value of 64-bit Kernel Register #6 (KR6). - This function is only available on IPF. - - @param Value The 64-bit value to write to KR6. - - @return The 64-bit value written to the KR6. - -**/ -UINT64 -EFIAPI -AsmWriteKr6 ( - IN UINT64 Value - ); - - -/** - Write the current value of 64-bit Kernel Register #7 (KR7). - This function is only available on IPF. - - @param Value The 64-bit value to write to KR7. - - @return The 64-bit value written to the KR7. - -**/ -UINT64 -EFIAPI -AsmWriteKr7 ( - IN UINT64 Value - ); - - -/** - Reads the current value of Interval Timer Counter Register (ITC). - This function is only available on IPF. - - @return The current value of ITC. - -**/ -UINT64 -EFIAPI -AsmReadItc ( - VOID - ); - - -/** - Reads the current value of Interval Timer Vector Register (ITV). - This function is only available on IPF. - - @return The current value of ITV. - -**/ -UINT64 -EFIAPI -AsmReadItv ( - VOID - ); - - -/** - Reads the current value of Interval Timer Match Register (ITM). - This function is only available on IPF. - - @return The current value of ITM. -**/ -UINT64 -EFIAPI -AsmReadItm ( - VOID - ); - - -/** - Writes the current value of 64-bit Interval Timer Counter Register (ITC). - This function is only available on IPF. - - @param Value The 64-bit value to write to ITC. - - @return The 64-bit value written to the ITC. - -**/ -UINT64 -EFIAPI -AsmWriteItc ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Interval Timer Match Register (ITM). - This function is only available on IPF. - - @param Value The 64-bit value to write to ITM. - - @return The 64-bit value written to the ITM. - -**/ -UINT64 -EFIAPI -AsmWriteItm ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Interval Timer Vector Register (ITV). - No parameter checking is performed on Value. All bits of Value corresponding to - reserved fields of ITV must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to ITV. - - @return The 64-bit value written to the ITV. - -**/ -UINT64 -EFIAPI -AsmWriteItv ( - IN UINT64 Value - ); - - -/** - Reads the current value of Default Control Register (DCR). - This function is only available on IPF. - - @return The current value of DCR. - -**/ -UINT64 -EFIAPI -AsmReadDcr ( - VOID - ); - - -/** - Reads the current value of Interruption Vector Address Register (IVA). - This function is only available on IPF. - - @return The current value of IVA. -**/ -UINT64 -EFIAPI -AsmReadIva ( - VOID - ); - - -/** - Reads the current value of Page Table Address Register (PTA). - This function is only available on IPF. - - @return The current value of PTA. - -**/ -UINT64 -EFIAPI -AsmReadPta ( - VOID - ); - - -/** - Writes the current value of 64-bit Default Control Register (DCR). - No parameter checking is performed on Value. All bits of Value corresponding to - reserved fields of DCR must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to DCR. - - @return The 64-bit value written to the DCR. - -**/ -UINT64 -EFIAPI -AsmWriteDcr ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Interruption Vector Address Register (IVA). - The size of vector table is 32 K bytes and is 32 K bytes aligned - the low 15 bits of Value is ignored when written. - This function is only available on IPF. - - @param Value The 64-bit value to write to IVA. - - @return The 64-bit value written to the IVA. - -**/ -UINT64 -EFIAPI -AsmWriteIva ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Page Table Address Register (PTA). - No parameter checking is performed on Value. All bits of Value corresponding to - reserved fields of DCR must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to PTA. - - @return The 64-bit value written to the PTA. -**/ -UINT64 -EFIAPI -AsmWritePta ( - IN UINT64 Value - ); - - -/** - Reads the current value of Local Interrupt ID Register (LID). - This function is only available on IPF. - - @return The current value of LID. - -**/ -UINT64 -EFIAPI -AsmReadLid ( - VOID - ); - - -/** - Reads the current value of External Interrupt Vector Register (IVR). - This function is only available on IPF. - - @return The current value of IVR. - -**/ -UINT64 -EFIAPI -AsmReadIvr ( - VOID - ); - - -/** - Reads the current value of Task Priority Register (TPR). - This function is only available on IPF. - - @return The current value of TPR. - -**/ -UINT64 -EFIAPI -AsmReadTpr ( - VOID - ); - - -/** - Reads the current value of External Interrupt Request Register #0 (IRR0). - This function is only available on IPF. - - @return The current value of IRR0. - -**/ -UINT64 -EFIAPI -AsmReadIrr0 ( - VOID - ); - - -/** - Reads the current value of External Interrupt Request Register #1 (IRR1). - This function is only available on IPF. - - @return The current value of IRR1. - -**/ -UINT64 -EFIAPI -AsmReadIrr1 ( - VOID - ); - - -/** - Reads the current value of External Interrupt Request Register #2 (IRR2). - This function is only available on IPF. - - @return The current value of IRR2. - -**/ -UINT64 -EFIAPI -AsmReadIrr2 ( - VOID - ); - - -/** - Reads the current value of External Interrupt Request Register #3 (IRR3). - This function is only available on IPF. - - @return The current value of IRR3. - -**/ -UINT64 -EFIAPI -AsmReadIrr3 ( - VOID - ); - - -/** - Reads the current value of Performance Monitor Vector Register (PMV). - This function is only available on IPF. - - @return The current value of PMV. - -**/ -UINT64 -EFIAPI -AsmReadPmv ( - VOID - ); - - -/** - Reads the current value of Corrected Machine Check Vector Register (CMCV). - This function is only available on IPF. - - @return The current value of CMCV. - -**/ -UINT64 -EFIAPI -AsmReadCmcv ( - VOID - ); - - -/** - Reads the current value of Local Redirection Register #0 (LRR0). - This function is only available on IPF. - - @return The current value of LRR0. - -**/ -UINT64 -EFIAPI -AsmReadLrr0 ( - VOID - ); - - -/** - Reads the current value of Local Redirection Register #1 (LRR1). - This function is only available on IPF. - - @return The current value of LRR1. - -**/ -UINT64 -EFIAPI -AsmReadLrr1 ( - VOID - ); - - -/** - Writes the current value of 64-bit Page Local Interrupt ID Register (LID). - No parameter checking is performed on Value. All bits of Value corresponding to - reserved fields of LID must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to LID. - - @return The 64-bit value written to the LID. - -**/ -UINT64 -EFIAPI -AsmWriteLid ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Task Priority Register (TPR). - No parameter checking is performed on Value. All bits of Value corresponding to - reserved fields of TPR must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to TPR. - - @return The 64-bit value written to the TPR. - -**/ -UINT64 -EFIAPI -AsmWriteTpr ( - IN UINT64 Value - ); - - -/** - Performs a write operation on End OF External Interrupt Register (EOI). - Writes a value of 0 to the EOI Register. This function is only available on IPF. - -**/ -VOID -EFIAPI -AsmWriteEoi ( - VOID - ); - - -/** - Writes the current value of 64-bit Performance Monitor Vector Register (PMV). - No parameter checking is performed on Value. All bits of Value corresponding - to reserved fields of PMV must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to PMV. - - @return The 64-bit value written to the PMV. - -**/ -UINT64 -EFIAPI -AsmWritePmv ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Corrected Machine Check Vector Register (CMCV). - No parameter checking is performed on Value. All bits of Value corresponding - to reserved fields of CMCV must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to CMCV. - - @return The 64-bit value written to the CMCV. - -**/ -UINT64 -EFIAPI -AsmWriteCmcv ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Local Redirection Register #0 (LRR0). - No parameter checking is performed on Value. All bits of Value corresponding - to reserved fields of LRR0 must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to LRR0. - - @return The 64-bit value written to the LRR0. - -**/ -UINT64 -EFIAPI -AsmWriteLrr0 ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Local Redirection Register #1 (LRR1). - No parameter checking is performed on Value. All bits of Value corresponding - to reserved fields of LRR1 must be 0 or a Reserved Register/Field fault may occur. - The caller must either guarantee that Value is valid, or the caller must - set up fault handlers to catch the faults. - This function is only available on IPF. - - @param Value The 64-bit value to write to LRR1. - - @return The 64-bit value written to the LRR1. - -**/ -UINT64 -EFIAPI -AsmWriteLrr1 ( - IN UINT64 Value - ); - - -/** - Reads the current value of Instruction Breakpoint Register (IBR). - - The Instruction Breakpoint Registers are used in pairs. The even numbered - registers contain breakpoint addresses, and the odd numbered registers contain - breakpoint mask conditions. At least 4 instruction registers pairs are implemented - on all processor models. Implemented registers are contiguous starting with - register 0. No parameter checking is performed on Index, and if the Index value - is beyond the implemented IBR register range, a Reserved Register/Field fault may - occur. The caller must either guarantee that Index is valid, or the caller must - set up fault handlers to catch the faults. - This function is only available on IPF. - - @param Index The 8-bit Instruction Breakpoint Register index to read. - - @return The current value of Instruction Breakpoint Register specified by Index. - -**/ -UINT64 -EFIAPI -AsmReadIbr ( - IN UINT8 Index - ); - - -/** - Reads the current value of Data Breakpoint Register (DBR). - - The Data Breakpoint Registers are used in pairs. The even numbered registers - contain breakpoint addresses, and odd numbered registers contain breakpoint - mask conditions. At least 4 data registers pairs are implemented on all processor - models. Implemented registers are contiguous starting with register 0. - No parameter checking is performed on Index. If the Index value is beyond - the implemented DBR register range, a Reserved Register/Field fault may occur. - The caller must either guarantee that Index is valid, or the caller must set up - fault handlers to catch the faults. - This function is only available on IPF. - - @param Index The 8-bit Data Breakpoint Register index to read. - - @return The current value of Data Breakpoint Register specified by Index. - -**/ -UINT64 -EFIAPI -AsmReadDbr ( - IN UINT8 Index - ); - - -/** - Reads the current value of Performance Monitor Configuration Register (PMC). - - All processor implementations provide at least 4 performance counters - (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter overflow - status registers (PMC [0]¡ PMC [3]). Processor implementations may provide - additional implementation-dependent PMC and PMD to increase the number of - ¡®generic¡¯ performance counters (PMC/PMD pairs). The remainder of PMC and PMD - register set is implementation dependent. No parameter checking is performed - on Index. If the Index value is beyond the implemented PMC register range, - zero value will be returned. - This function is only available on IPF. - - @param Index The 8-bit Performance Monitor Configuration Register index to read. - - @return The current value of Performance Monitor Configuration Register - specified by Index. - -**/ -UINT64 -EFIAPI -AsmReadPmc ( - IN UINT8 Index - ); - - -/** - Reads the current value of Performance Monitor Data Register (PMD). - - All processor implementations provide at least 4 performance counters - (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter - overflow status registers (PMC [0]¡ PMC [3]). Processor implementations may - provide additional implementation-dependent PMC and PMD to increase the number - of ¡®generic¡¯ performance counters (PMC/PMD pairs). The remainder of PMC and PMD - register set is implementation dependent. No parameter checking is performed - on Index. If the Index value is beyond the implemented PMD register range, - zero value will be returned. - This function is only available on IPF. - - @param Index The 8-bit Performance Monitor Data Register index to read. - - @return The current value of Performance Monitor Data Register specified by Index. - -**/ -UINT64 -EFIAPI -AsmReadPmd ( - IN UINT8 Index - ); - - -/** - Writes the current value of 64-bit Instruction Breakpoint Register (IBR). - - Writes current value of Instruction Breakpoint Register specified by Index. - The Instruction Breakpoint Registers are used in pairs. The even numbered - registers contain breakpoint addresses, and odd numbered registers contain - breakpoint mask conditions. At least 4 instruction registers pairs are implemented - on all processor models. Implemented registers are contiguous starting with - register 0. No parameter checking is performed on Index. If the Index value - is beyond the implemented IBR register range, a Reserved Register/Field fault may - occur. The caller must either guarantee that Index is valid, or the caller must - set up fault handlers to catch the faults. - This function is only available on IPF. - - @param Index The 8-bit Instruction Breakpoint Register index to write. - @param Value The 64-bit value to write to IBR. - - @return The 64-bit value written to the IBR. - -**/ -UINT64 -EFIAPI -AsmWriteIbr ( - IN UINT8 Index, - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Data Breakpoint Register (DBR). - - Writes current value of Data Breakpoint Register specified by Index. - The Data Breakpoint Registers are used in pairs. The even numbered registers - contain breakpoint addresses, and odd numbered registers contain breakpoint - mask conditions. At least 4 data registers pairs are implemented on all processor - models. Implemented registers are contiguous starting with register 0. No parameter - checking is performed on Index. If the Index value is beyond the implemented - DBR register range, a Reserved Register/Field fault may occur. The caller must - either guarantee that Index is valid, or the caller must set up fault handlers to - catch the faults. - This function is only available on IPF. - - @param Index The 8-bit Data Breakpoint Register index to write. - @param Value The 64-bit value to write to DBR. - - @return The 64-bit value written to the DBR. - -**/ -UINT64 -EFIAPI -AsmWriteDbr ( - IN UINT8 Index, - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Performance Monitor Configuration Register (PMC). - - Writes current value of Performance Monitor Configuration Register specified by Index. - All processor implementations provide at least 4 performance counters - (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter overflow status - registers (PMC [0]¡ PMC [3]). Processor implementations may provide additional - implementation-dependent PMC and PMD to increase the number of ¡®generic¡¯ performance - counters (PMC/PMD pairs). The remainder of PMC and PMD register set is implementation - dependent. No parameter checking is performed on Index. If the Index value is - beyond the implemented PMC register range, the write is ignored. - This function is only available on IPF. - - @param Index The 8-bit Performance Monitor Configuration Register index to write. - @param Value The 64-bit value to write to PMC. - - @return The 64-bit value written to the PMC. - -**/ -UINT64 -EFIAPI -AsmWritePmc ( - IN UINT8 Index, - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit Performance Monitor Data Register (PMD). - - Writes current value of Performance Monitor Data Register specified by Index. - All processor implementations provide at least 4 performance counters - (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter overflow - status registers (PMC [0]¡ PMC [3]). Processor implementations may provide - additional implementation-dependent PMC and PMD to increase the number of ¡®generic¡¯ - performance counters (PMC/PMD pairs). The remainder of PMC and PMD register set - is implementation dependent. No parameter checking is performed on Index. If the - Index value is beyond the implemented PMD register range, the write is ignored. - This function is only available on IPF. - - @param Index The 8-bit Performance Monitor Data Register index to write. - @param Value The 64-bit value to write to PMD. - - @return The 64-bit value written to the PMD. - -**/ -UINT64 -EFIAPI -AsmWritePmd ( - IN UINT8 Index, - IN UINT64 Value - ); - - -/** - Reads the current value of 64-bit Global Pointer (GP). - - Reads and returns the current value of GP. - This function is only available on IPF. - - @return The current value of GP. - -**/ -UINT64 -EFIAPI -AsmReadGp ( - VOID - ); - - -/** - Write the current value of 64-bit Global Pointer (GP). - - Writes the current value of GP. The 64-bit value written to the GP is returned. - No parameter checking is performed on Value. - This function is only available on IPF. - - @param Value The 64-bit value to write to GP. - - @return The 64-bit value written to the GP. - -**/ -UINT64 -EFIAPI -AsmWriteGp ( - IN UINT64 Value - ); - - -/** - Reads the current value of 64-bit Stack Pointer (SP). - - Reads and returns the current value of SP. - This function is only available on IPF. - - @return The current value of SP. - -**/ -UINT64 -EFIAPI -AsmReadSp ( - VOID - ); - - -/** - Determines if the CPU is currently executing in virtual, physical, or mixed mode. - - Determines the current execution mode of the CPU. - If the CPU is in virtual mode(PSR.RT=1, PSR.DT=1, PSR.IT=1), then 1 is returned. - If the CPU is in physical mode(PSR.RT=0, PSR.DT=0, PSR.IT=0), then 0 is returned. - If the CPU is not in physical mode or virtual mode, then it is in mixed mode, - and -1 is returned. - This function is only available on IPF. - - @return 1 The CPU is in virtual mode. - @return 0 The CPU is in physical mode. - @return -1 The CPU is in mixed mode. - -**/ -INT64 -EFIAPI -AsmCpuVirtual ( - VOID - ); - - -/** - Makes a PAL procedure call. - - This is a wrapper function to make a PAL procedure call. Based on the Index - value this API will make static or stacked PAL call. The following table - describes the usage of PAL Procedure Index Assignment. Architected procedures - may be designated as required or optional. If a PAL procedure is specified - as optional, a unique return code of 0xFFFFFFFFFFFFFFFF is returned in the - Status field of the PAL_CALL_RETURN structure. - This indicates that the procedure is not present in this PAL implementation. - It is the caller¡¯s responsibility to check for this return code after calling - any optional PAL procedure. - No parameter checking is performed on the 5 input parameters, but there are - some common rules that the caller should follow when making a PAL call. Any - address passed to PAL as buffers for return parameters must be 8-byte aligned. - Unaligned addresses may cause undefined results. For those parameters defined - as reserved or some fields defined as reserved must be zero filled or the invalid - argument return value may be returned or undefined result may occur during the - execution of the procedure. If the PalEntryPoint does not point to a valid - PAL entry point then the system behavior is undefined. This function is only - available on IPF. - - @param PalEntryPoint The PAL procedure calls entry point. - @param Index The PAL procedure Index number. - @param Arg2 The 2nd parameter for PAL procedure calls. - @param Arg3 The 3rd parameter for PAL procedure calls. - @param Arg4 The 4th parameter for PAL procedure calls. - - @return structure returned from the PAL Call procedure, including the status and return value. - -**/ -PAL_CALL_RETURN -EFIAPI -AsmPalCall ( - IN UINT64 PalEntryPoint, - IN UINT64 Index, - IN UINT64 Arg2, - IN UINT64 Arg3, - IN UINT64 Arg4 - ); - - -/** - Transfers control to a function starting with a new stack. - - Transfers control to the function specified by EntryPoint using the new stack - specified by NewStack and passing in the parameters specified by Context1 and - Context2. Context1 and Context2 are optional and may be NULL. The function - EntryPoint must never return. - - If EntryPoint is NULL, then ASSERT(). - If NewStack is NULL, then ASSERT(). - - @param EntryPoint A pointer to function to call with the new stack. - @param Context1 A pointer to the context to pass into the EntryPoint - function. - @param Context2 A pointer to the context to pass into the EntryPoint - function. - @param NewStack A pointer to the new stack to use for the EntryPoint - function. - @param NewBsp A pointer to the new memory location for RSE backing - store. - -**/ -VOID -EFIAPI -AsmSwitchStackAndBackingStore ( - IN SWITCH_STACK_ENTRY_POINT EntryPoint, - IN VOID *Context1, OPTIONAL - IN VOID *Context2, OPTIONAL - IN VOID *NewStack, - IN VOID *NewBsp - ); - - -// -// Bugbug: This call should be removed after -// the PalCall Instance issue has been fixed. -// -/** - Performs a PAL call using static calling convention. - - An internal function to perform a PAL call using static calling convention. - - @param PalEntryPoint The entry point address of PAL. The address in ar.kr5 - would be used if this parameter were NULL on input. - @param Arg1 The first argument of a PAL call. - @param Arg1 The second argument of a PAL call. - @param Arg1 The third argument of a PAL call. - @param Arg1 The fourth argument of a PAL call. - - @return The values returned in r8, r9, r10 and r11. - -**/ -PAL_CALL_RETURN -PalCallStatic ( - IN CONST VOID *PalEntryPoint, - IN UINT64 Arg1, - IN UINT64 Arg2, - IN UINT64 Arg3, - IN UINT64 Arg4 - ); - - -#elif defined (MDE_CPU_IA32) || defined (MDE_CPU_X64) -// -// IA32 and X64 Specific Functions -// -// -// Byte packed structure for 16-bit Real Mode EFLAGS -// -typedef union { - struct { - UINT32 CF:1; // Carry Flag - UINT32 Reserved_0:1; // Reserved - UINT32 PF:1; // Parity Flag - UINT32 Reserved_1:1; // Reserved - UINT32 AF:1; // Auxiliary Carry Flag - UINT32 Reserved_2:1; // Reserved - UINT32 ZF:1; // Zero Flag - UINT32 SF:1; // Sign Flag - UINT32 TF:1; // Trap Flag - UINT32 IF:1; // Interrupt Enable Flag - UINT32 DF:1; // Direction Flag - UINT32 OF:1; // Overflow Flag - UINT32 IOPL:2; // I/O Privilege Level - UINT32 NT:1; // Nested Task - UINT32 Reserved_3:1; // Reserved - } Bits; - UINT16 Uint16; -} IA32_FLAGS16; - -// -// Byte packed structure for EFLAGS/RFLAGS -// 32-bits on IA-32 -// 64-bits on X64. The upper 32-bits on X64 are reserved -// -typedef union { - struct { - UINT32 CF:1; // Carry Flag - UINT32 Reserved_0:1; // Reserved - UINT32 PF:1; // Parity Flag - UINT32 Reserved_1:1; // Reserved - UINT32 AF:1; // Auxiliary Carry Flag - UINT32 Reserved_2:1; // Reserved - UINT32 ZF:1; // Zero Flag - UINT32 SF:1; // Sign Flag - UINT32 TF:1; // Trap Flag - UINT32 IF:1; // Interrupt Enable Flag - UINT32 DF:1; // Direction Flag - UINT32 OF:1; // Overflow Flag - UINT32 IOPL:2; // I/O Privilege Level - UINT32 NT:1; // Nested Task - UINT32 Reserved_3:1; // Reserved - UINT32 RF:1; // Resume Flag - UINT32 VM:1; // Virtual 8086 Mode - UINT32 AC:1; // Alignment Check - UINT32 VIF:1; // Virtual Interrupt Flag - UINT32 VIP:1; // Virtual Interrupt Pending - UINT32 ID:1; // ID Flag - UINT32 Reserved_4:10; // Reserved - } Bits; - UINTN UintN; -} IA32_EFLAGS32; - -// -// Byte packed structure for Control Register 0 (CR0) -// 32-bits on IA-32 -// 64-bits on X64. The upper 32-bits on X64 are reserved -// -typedef union { - struct { - UINT32 PE:1; // Protection Enable - UINT32 MP:1; // Monitor Coprocessor - UINT32 EM:1; // Emulation - UINT32 TS:1; // Task Switched - UINT32 ET:1; // Extension Type - UINT32 NE:1; // Numeric Error - UINT32 Reserved_0:10; // Reserved - UINT32 WP:1; // Write Protect - UINT32 Reserved_1:1; // Reserved - UINT32 AM:1; // Alignment Mask - UINT32 Reserved_2:10; // Reserved - UINT32 NW:1; // Mot Write-through - UINT32 CD:1; // Cache Disable - UINT32 PG:1; // Paging - } Bits; - UINTN UintN; -} IA32_CR0; - -// -// Byte packed structure for Control Register 4 (CR4) -// 32-bits on IA-32 -// 64-bits on X64. The upper 32-bits on X64 are reserved -// -typedef union { - struct { - UINT32 VME:1; // Virtual-8086 Mode Extensions - UINT32 PVI:1; // Protected-Mode Virtual Interrupts - UINT32 TSD:1; // Time Stamp Disable - UINT32 DE:1; // Debugging Extensions - UINT32 PSE:1; // Page Size Extensions - UINT32 PAE:1; // Physical Address Extension - UINT32 MCE:1; // Machine Check Enable - UINT32 PGE:1; // Page Global Enable - UINT32 PCE:1; // Performance Monitoring Counter - // Enable - UINT32 OSFXSR:1; // Operating System Support for - // FXSAVE and FXRSTOR instructions - UINT32 OSXMMEXCPT:1; // Operating System Support for - // Unmasked SIMD Floating Point - // Exceptions - UINT32 Reserved_0:2; // Reserved - UINT32 VMXE:1; // VMX Enable - UINT32 Reserved_1:18; // Reseved - } Bits; - UINTN UintN; -} IA32_CR4; - -// -// Byte packed structure for an IDTR, GDTR, LDTR descriptor -/// @bug How to make this structure byte-packed in a compiler independent way? -// -#pragma pack (1) -typedef struct { - UINT16 Limit; - UINTN Base; -} IA32_DESCRIPTOR; -#pragma pack () - -#define IA32_IDT_GATE_TYPE_TASK 0x85 -#define IA32_IDT_GATE_TYPE_INTERRUPT_16 0x86 -#define IA32_IDT_GATE_TYPE_TRAP_16 0x87 -#define IA32_IDT_GATE_TYPE_INTERRUPT_32 0x8E -#define IA32_IDT_GATE_TYPE_TRAP_32 0x8F - -// -// Byte packed structure for an Interrupt Gate Descriptor -// -typedef union { - struct { - UINT32 OffsetLow:16; // Offset bits 15..0 - UINT32 Selector:16; // Selector - UINT32 Reserved_0:8; // Reserved - UINT32 GateType:8; // Gate Type. See #defines above - UINT32 OffsetHigh:16; // Offset bits 31..16 - } Bits; - UINT64 Uint64; -} IA32_IDT_GATE_DESCRIPTOR; - -// -// Byte packed structure for an FP/SSE/SSE2 context -// -typedef struct { - UINT8 Buffer[512]; -} IA32_FX_BUFFER; - -// -// Structures for the 16-bit real mode thunks -// -typedef struct { - UINT32 Reserved1; - UINT32 Reserved2; - UINT32 Reserved3; - UINT32 Reserved4; - UINT8 BL; - UINT8 BH; - UINT16 Reserved5; - UINT8 DL; - UINT8 DH; - UINT16 Reserved6; - UINT8 CL; - UINT8 CH; - UINT16 Reserved7; - UINT8 AL; - UINT8 AH; - UINT16 Reserved8; -} IA32_BYTE_REGS; - -typedef struct { - UINT16 DI; - UINT16 Reserved1; - UINT16 SI; - UINT16 Reserved2; - UINT16 BP; - UINT16 Reserved3; - UINT16 SP; - UINT16 Reserved4; - UINT16 BX; - UINT16 Reserved5; - UINT16 DX; - UINT16 Reserved6; - UINT16 CX; - UINT16 Reserved7; - UINT16 AX; - UINT16 Reserved8; -} IA32_WORD_REGS; - -typedef struct { - UINT32 EDI; - UINT32 ESI; - UINT32 EBP; - UINT32 ESP; - UINT32 EBX; - UINT32 EDX; - UINT32 ECX; - UINT32 EAX; - UINT16 DS; - UINT16 ES; - UINT16 FS; - UINT16 GS; - IA32_EFLAGS32 EFLAGS; - UINT32 Eip; - UINT16 CS; - UINT16 SS; -} IA32_DWORD_REGS; - -typedef union { - IA32_DWORD_REGS E; - IA32_WORD_REGS X; - IA32_BYTE_REGS H; -} IA32_REGISTER_SET; - -// -// Byte packed structure for an 16-bit real mode thunks -// -typedef struct { - IA32_REGISTER_SET *RealModeState; - VOID *RealModeBuffer; - UINT32 RealModeBufferSize; - UINT32 ThunkAttributes; -} THUNK_CONTEXT; - -#define THUNK_ATTRIBUTE_BIG_REAL_MODE 0x00000001 -#define THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 0x00000002 -#define THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL 0x00000004 - -/** - Retrieves CPUID information. - - Executes the CPUID instruction with EAX set to the value specified by Index. - This function always returns Index. - If Eax is not NULL, then the value of EAX after CPUID is returned in Eax. - If Ebx is not NULL, then the value of EBX after CPUID is returned in Ebx. - If Ecx is not NULL, then the value of ECX after CPUID is returned in Ecx. - If Edx is not NULL, then the value of EDX after CPUID is returned in Edx. - This function is only available on IA-32 and X64. - - @param Index The 32-bit value to load into EAX prior to invoking the CPUID - instruction. - @param Eax Pointer to the 32-bit EAX value returned by the CPUID - instruction. This is an optional parameter that may be NULL. - @param Ebx Pointer to the 32-bit EBX value returned by the CPUID - instruction. This is an optional parameter that may be NULL. - @param Ecx Pointer to the 32-bit ECX value returned by the CPUID - instruction. This is an optional parameter that may be NULL. - @param Edx Pointer to the 32-bit EDX value returned by the CPUID - instruction. This is an optional parameter that may be NULL. - - @return Index - -**/ -UINT32 -EFIAPI -AsmCpuid ( - IN UINT32 Index, - OUT UINT32 *Eax, OPTIONAL - OUT UINT32 *Ebx, OPTIONAL - OUT UINT32 *Ecx, OPTIONAL - OUT UINT32 *Edx OPTIONAL - ); - - -/** - Retrieves CPUID information using an extended leaf identifier. - - Executes the CPUID instruction with EAX set to the value specified by Index - and ECX set to the value specified by SubIndex. This function always returns - Index. This function is only available on IA-32 and x64. - - If Eax is not NULL, then the value of EAX after CPUID is returned in Eax. - If Ebx is not NULL, then the value of EBX after CPUID is returned in Ebx. - If Ecx is not NULL, then the value of ECX after CPUID is returned in Ecx. - If Edx is not NULL, then the value of EDX after CPUID is returned in Edx. - - @param Index The 32-bit value to load into EAX prior to invoking the - CPUID instruction. - @param SubIndex The 32-bit value to load into ECX prior to invoking the - CPUID instruction. - @param Eax Pointer to the 32-bit EAX value returned by the CPUID - instruction. This is an optional parameter that may be - NULL. - @param Ebx Pointer to the 32-bit EBX value returned by the CPUID - instruction. This is an optional parameter that may be - NULL. - @param Ecx Pointer to the 32-bit ECX value returned by the CPUID - instruction. This is an optional parameter that may be - NULL. - @param Edx Pointer to the 32-bit EDX value returned by the CPUID - instruction. This is an optional parameter that may be - NULL. - - @return Index - -**/ -UINT32 -EFIAPI -AsmCpuidEx ( - IN UINT32 Index, - IN UINT32 SubIndex, - OUT UINT32 *Eax, OPTIONAL - OUT UINT32 *Ebx, OPTIONAL - OUT UINT32 *Ecx, OPTIONAL - OUT UINT32 *Edx OPTIONAL - ); - - -/** - Returns the lower 32-bits of a Machine Specific Register(MSR). - - Reads and returns the lower 32-bits of the MSR specified by Index. - No parameter checking is performed on Index, and some Index values may cause - CPU exceptions. The caller must either guarantee that Index is valid, or the - caller must set up exception handlers to catch the exceptions. This function - is only available on IA-32 and X64. - - @param Index The 32-bit MSR index to read. - - @return The lower 32 bits of the MSR identified by Index. - -**/ -UINT32 -EFIAPI -AsmReadMsr32 ( - IN UINT32 Index - ); - - -/** - Zero-extend a 32-bit value and writes it to a Machine Specific Register(MSR). - - Writes the 32-bit value specified by Value to the MSR specified by Index. The - upper 32-bits of the MSR write are set to zero. The 32-bit value written to - the MSR is returned. No parameter checking is performed on Index or Value, - and some of these may cause CPU exceptions. The caller must either guarantee - that Index and Value are valid, or the caller must establish proper exception - handlers. This function is only available on IA-32 and X64. - - @param Index The 32-bit MSR index to write. - @param Value The 32-bit value to write to the MSR. - - @return Value - -**/ -UINT32 -EFIAPI -AsmWriteMsr32 ( - IN UINT32 Index, - IN UINT32 Value - ); - - -/** - Reads a 64-bit MSR, performs a bitwise inclusive OR on the lower 32-bits, and - writes the result back to the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise inclusive OR - between the lower 32-bits of the read result and the value specified by - OrData, and writes the result to the 64-bit MSR specified by Index. The lower - 32-bits of the value written to the MSR is returned. No parameter checking is - performed on Index or OrData, and some of these may cause CPU exceptions. The - caller must either guarantee that Index and OrData are valid, or the caller - must establish proper exception handlers. This function is only available on - IA-32 and X64. - - @param Index The 32-bit MSR index to write. - @param OrData The value to OR with the read value from the MSR. - - @return The lower 32-bit value written to the MSR. - -**/ -UINT32 -EFIAPI -AsmMsrOr32 ( - IN UINT32 Index, - IN UINT32 OrData - ); - - -/** - Reads a 64-bit MSR, performs a bitwise AND on the lower 32-bits, and writes - the result back to the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise AND between the - lower 32-bits of the read result and the value specified by AndData, and - writes the result to the 64-bit MSR specified by Index. The lower 32-bits of - the value written to the MSR is returned. No parameter checking is performed - on Index or AndData, and some of these may cause CPU exceptions. The caller - must either guarantee that Index and AndData are valid, or the caller must - establish proper exception handlers. This function is only available on IA-32 - and X64. - - @param Index The 32-bit MSR index to write. - @param AndData The value to AND with the read value from the MSR. - - @return The lower 32-bit value written to the MSR. - -**/ -UINT32 -EFIAPI -AsmMsrAnd32 ( - IN UINT32 Index, - IN UINT32 AndData - ); - - -/** - Reads a 64-bit MSR, performs a bitwise AND followed by a bitwise inclusive OR - on the lower 32-bits, and writes the result back to the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise AND between the - lower 32-bits of the read result and the value specified by AndData - preserving the upper 32-bits, performs a bitwise inclusive OR between the - result of the AND operation and the value specified by OrData, and writes the - result to the 64-bit MSR specified by Address. The lower 32-bits of the value - written to the MSR is returned. No parameter checking is performed on Index, - AndData, or OrData, and some of these may cause CPU exceptions. The caller - must either guarantee that Index, AndData, and OrData are valid, or the - caller must establish proper exception handlers. This function is only - available on IA-32 and X64. - - @param Index The 32-bit MSR index to write. - @param AndData The value to AND with the read value from the MSR. - @param OrData The value to OR with the result of the AND operation. - - @return The lower 32-bit value written to the MSR. - -**/ -UINT32 -EFIAPI -AsmMsrAndThenOr32 ( - IN UINT32 Index, - IN UINT32 AndData, - IN UINT32 OrData - ); - - -/** - Reads a bit field of an MSR. - - Reads the bit field in the lower 32-bits of a 64-bit MSR. The bit field is - specified by the StartBit and the EndBit. The value of the bit field is - returned. The caller must either guarantee that Index is valid, or the caller - must set up exception handlers to catch the exceptions. This function is only - available on IA-32 and X64. - - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to read. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - - @return The bit field read from the MSR. - -**/ -UINT32 -EFIAPI -AsmMsrBitFieldRead32 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit - ); - - -/** - Writes a bit field to an MSR. - - Writes Value to a bit field in the lower 32-bits of a 64-bit MSR. The bit - field is specified by the StartBit and the EndBit. All other bits in the - destination MSR are preserved. The lower 32-bits of the MSR written is - returned. Extra left bits in Value are stripped. The caller must either - guarantee that Index and the data written is valid, or the caller must set up - exception handlers to catch the exceptions. This function is only available - on IA-32 and X64. - - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to write. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - @param Value New value of the bit field. - - @return The lower 32-bit of the value written to the MSR. - -**/ -UINT32 -EFIAPI -AsmMsrBitFieldWrite32 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT32 Value - ); - - -/** - Reads a bit field in a 64-bit MSR, performs a bitwise OR, and writes the - result back to the bit field in the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise inclusive OR - between the read result and the value specified by OrData, and writes the - result to the 64-bit MSR specified by Index. The lower 32-bits of the value - written to the MSR are returned. Extra left bits in OrData are stripped. The - caller must either guarantee that Index and the data written is valid, or - the caller must set up exception handlers to catch the exceptions. This - function is only available on IA-32 and X64. - - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to write. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - @param OrData The value to OR with the read value from the MSR. - - @return The lower 32-bit of the value written to the MSR. - -**/ -UINT32 -EFIAPI -AsmMsrBitFieldOr32 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT32 OrData - ); - - -/** - Reads a bit field in a 64-bit MSR, performs a bitwise AND, and writes the - result back to the bit field in the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise AND between the - read result and the value specified by AndData, and writes the result to the - 64-bit MSR specified by Index. The lower 32-bits of the value written to the - MSR are returned. Extra left bits in AndData are stripped. The caller must - either guarantee that Index and the data written is valid, or the caller must - set up exception handlers to catch the exceptions. This function is only - available on IA-32 and X64. - - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to write. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - @param AndData The value to AND with the read value from the MSR. - - @return The lower 32-bit of the value written to the MSR. - -**/ -UINT32 -EFIAPI -AsmMsrBitFieldAnd32 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT32 AndData - ); - - -/** - Reads a bit field in a 64-bit MSR, performs a bitwise AND followed by a - bitwise inclusive OR, and writes the result back to the bit field in the - 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise AND followed by a - bitwise inclusive OR between the read result and the value specified by - AndData, and writes the result to the 64-bit MSR specified by Index. The - lower 32-bits of the value written to the MSR are returned. Extra left bits - in both AndData and OrData are stripped. The caller must either guarantee - that Index and the data written is valid, or the caller must set up exception - handlers to catch the exceptions. This function is only available on IA-32 - and X64. - - If StartBit is greater than 31, then ASSERT(). - If EndBit is greater than 31, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to write. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..31. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..31. - @param AndData The value to AND with the read value from the MSR. - @param OrData The value to OR with the result of the AND operation. - - @return The lower 32-bit of the value written to the MSR. - -**/ -UINT32 -EFIAPI -AsmMsrBitFieldAndThenOr32 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT32 AndData, - IN UINT32 OrData - ); - - -/** - Returns a 64-bit Machine Specific Register(MSR). - - Reads and returns the 64-bit MSR specified by Index. No parameter checking is - performed on Index, and some Index values may cause CPU exceptions. The - caller must either guarantee that Index is valid, or the caller must set up - exception handlers to catch the exceptions. This function is only available - on IA-32 and X64. - - @param Index The 32-bit MSR index to read. - - @return The value of the MSR identified by Index. - -**/ -UINT64 -EFIAPI -AsmReadMsr64 ( - IN UINT32 Index - ); - - -/** - Writes a 64-bit value to a Machine Specific Register(MSR), and returns the - value. - - Writes the 64-bit value specified by Value to the MSR specified by Index. The - 64-bit value written to the MSR is returned. No parameter checking is - performed on Index or Value, and some of these may cause CPU exceptions. The - caller must either guarantee that Index and Value are valid, or the caller - must establish proper exception handlers. This function is only available on - IA-32 and X64. - - @param Index The 32-bit MSR index to write. - @param Value The 64-bit value to write to the MSR. - - @return Value - -**/ -UINT64 -EFIAPI -AsmWriteMsr64 ( - IN UINT32 Index, - IN UINT64 Value - ); - - -/** - Reads a 64-bit MSR, performs a bitwise inclusive OR, and writes the result - back to the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise inclusive OR - between the read result and the value specified by OrData, and writes the - result to the 64-bit MSR specified by Index. The value written to the MSR is - returned. No parameter checking is performed on Index or OrData, and some of - these may cause CPU exceptions. The caller must either guarantee that Index - and OrData are valid, or the caller must establish proper exception handlers. - This function is only available on IA-32 and X64. - - @param Index The 32-bit MSR index to write. - @param OrData The value to OR with the read value from the MSR. - - @return The value written back to the MSR. - -**/ -UINT64 -EFIAPI -AsmMsrOr64 ( - IN UINT32 Index, - IN UINT64 OrData - ); - - -/** - Reads a 64-bit MSR, performs a bitwise AND, and writes the result back to the - 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise AND between the - read result and the value specified by OrData, and writes the result to the - 64-bit MSR specified by Index. The value written to the MSR is returned. No - parameter checking is performed on Index or OrData, and some of these may - cause CPU exceptions. The caller must either guarantee that Index and OrData - are valid, or the caller must establish proper exception handlers. This - function is only available on IA-32 and X64. - - @param Index The 32-bit MSR index to write. - @param AndData The value to AND with the read value from the MSR. - - @return The value written back to the MSR. - -**/ -UINT64 -EFIAPI -AsmMsrAnd64 ( - IN UINT32 Index, - IN UINT64 AndData - ); - - -/** - Reads a 64-bit MSR, performs a bitwise AND followed by a bitwise inclusive - OR, and writes the result back to the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise AND between read - result and the value specified by AndData, performs a bitwise inclusive OR - between the result of the AND operation and the value specified by OrData, - and writes the result to the 64-bit MSR specified by Index. The value written - to the MSR is returned. No parameter checking is performed on Index, AndData, - or OrData, and some of these may cause CPU exceptions. The caller must either - guarantee that Index, AndData, and OrData are valid, or the caller must - establish proper exception handlers. This function is only available on IA-32 - and X64. - - @param Index The 32-bit MSR index to write. - @param AndData The value to AND with the read value from the MSR. - @param OrData The value to OR with the result of the AND operation. - - @return The value written back to the MSR. - -**/ -UINT64 -EFIAPI -AsmMsrAndThenOr64 ( - IN UINT32 Index, - IN UINT64 AndData, - IN UINT64 OrData - ); - - -/** - Reads a bit field of an MSR. - - Reads the bit field in the 64-bit MSR. The bit field is specified by the - StartBit and the EndBit. The value of the bit field is returned. The caller - must either guarantee that Index is valid, or the caller must set up - exception handlers to catch the exceptions. This function is only available - on IA-32 and X64. - - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to read. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - - @return The value read from the MSR. - -**/ -UINT64 -EFIAPI -AsmMsrBitFieldRead64 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit - ); - - -/** - Writes a bit field to an MSR. - - Writes Value to a bit field in a 64-bit MSR. The bit field is specified by - the StartBit and the EndBit. All other bits in the destination MSR are - preserved. The MSR written is returned. Extra left bits in Value are - stripped. The caller must either guarantee that Index and the data written is - valid, or the caller must set up exception handlers to catch the exceptions. - This function is only available on IA-32 and X64. - - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to write. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - @param Value New value of the bit field. - - @return The value written back to the MSR. - -**/ -UINT64 -EFIAPI -AsmMsrBitFieldWrite64 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT64 Value - ); - - -/** - Reads a bit field in a 64-bit MSR, performs a bitwise inclusive OR, and - writes the result back to the bit field in the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise inclusive OR - between the read result and the value specified by OrData, and writes the - result to the 64-bit MSR specified by Index. The value written to the MSR is - returned. Extra left bits in OrData are stripped. The caller must either - guarantee that Index and the data written is valid, or the caller must set up - exception handlers to catch the exceptions. This function is only available - on IA-32 and X64. - - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to write. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - @param OrData The value to OR with the read value from the bit field. - - @return The value written back to the MSR. - -**/ -UINT64 -EFIAPI -AsmMsrBitFieldOr64 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT64 OrData - ); - - -/** - Reads a bit field in a 64-bit MSR, performs a bitwise AND, and writes the - result back to the bit field in the 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise AND between the - read result and the value specified by AndData, and writes the result to the - 64-bit MSR specified by Index. The value written to the MSR is returned. - Extra left bits in AndData are stripped. The caller must either guarantee - that Index and the data written is valid, or the caller must set up exception - handlers to catch the exceptions. This function is only available on IA-32 - and X64. - - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to write. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - @param AndData The value to AND with the read value from the bit field. - - @return The value written back to the MSR. - -**/ -UINT64 -EFIAPI -AsmMsrBitFieldAnd64 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT64 AndData - ); - - -/** - Reads a bit field in a 64-bit MSR, performs a bitwise AND followed by a - bitwise inclusive OR, and writes the result back to the bit field in the - 64-bit MSR. - - Reads the 64-bit MSR specified by Index, performs a bitwise AND followed by - a bitwise inclusive OR between the read result and the value specified by - AndData, and writes the result to the 64-bit MSR specified by Index. The - value written to the MSR is returned. Extra left bits in both AndData and - OrData are stripped. The caller must either guarantee that Index and the data - written is valid, or the caller must set up exception handlers to catch the - exceptions. This function is only available on IA-32 and X64. - - If StartBit is greater than 63, then ASSERT(). - If EndBit is greater than 63, then ASSERT(). - If EndBit is less than StartBit, then ASSERT(). - - @param Index The 32-bit MSR index to write. - @param StartBit The ordinal of the least significant bit in the bit field. - Range 0..63. - @param EndBit The ordinal of the most significant bit in the bit field. - Range 0..63. - @param AndData The value to AND with the read value from the bit field. - @param OrData The value to OR with the result of the AND operation. - - @return The value written back to the MSR. - -**/ -UINT64 -EFIAPI -AsmMsrBitFieldAndThenOr64 ( - IN UINT32 Index, - IN UINTN StartBit, - IN UINTN EndBit, - IN UINT64 AndData, - IN UINT64 OrData - ); - - -/** - Reads the current value of the EFLAGS register. - - Reads and returns the current value of the EFLAGS register. This function is - only available on IA-32 and X64. This returns a 32-bit value on IA-32 and a - 64-bit value on X64. - - @return EFLAGS on IA-32 or RFLAGS on X64. - -**/ -UINTN -EFIAPI -AsmReadEflags ( - VOID - ); - - -/** - Reads the current value of the Control Register 0 (CR0). - - Reads and returns the current value of CR0. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of the Control Register 0 (CR0). - -**/ -UINTN -EFIAPI -AsmReadCr0 ( - VOID - ); - - -/** - Reads the current value of the Control Register 2 (CR2). - - Reads and returns the current value of CR2. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of the Control Register 2 (CR2). - -**/ -UINTN -EFIAPI -AsmReadCr2 ( - VOID - ); - - -/** - Reads the current value of the Control Register 3 (CR3). - - Reads and returns the current value of CR3. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of the Control Register 3 (CR3). - -**/ -UINTN -EFIAPI -AsmReadCr3 ( - VOID - ); - - -/** - Reads the current value of the Control Register 4 (CR4). - - Reads and returns the current value of CR4. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of the Control Register 4 (CR4). - -**/ -UINTN -EFIAPI -AsmReadCr4 ( - VOID - ); - - -/** - Writes a value to Control Register 0 (CR0). - - Writes and returns a new value to CR0. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Cr0 The value to write to CR0. - - @return The value written to CR0. - -**/ -UINTN -EFIAPI -AsmWriteCr0 ( - UINTN Cr0 - ); - - -/** - Writes a value to Control Register 2 (CR2). - - Writes and returns a new value to CR2. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Cr2 The value to write to CR2. - - @return The value written to CR2. - -**/ -UINTN -EFIAPI -AsmWriteCr2 ( - UINTN Cr2 - ); - - -/** - Writes a value to Control Register 3 (CR3). - - Writes and returns a new value to CR3. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Cr3 The value to write to CR3. - - @return The value written to CR3. - -**/ -UINTN -EFIAPI -AsmWriteCr3 ( - UINTN Cr3 - ); - - -/** - Writes a value to Control Register 4 (CR4). - - Writes and returns a new value to CR4. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Cr4 The value to write to CR4. - - @return The value written to CR4. - -**/ -UINTN -EFIAPI -AsmWriteCr4 ( - UINTN Cr4 - ); - - -/** - Reads the current value of Debug Register 0 (DR0). - - Reads and returns the current value of DR0. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of Debug Register 0 (DR0). - -**/ -UINTN -EFIAPI -AsmReadDr0 ( - VOID - ); - - -/** - Reads the current value of Debug Register 1 (DR1). - - Reads and returns the current value of DR1. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of Debug Register 1 (DR1). - -**/ -UINTN -EFIAPI -AsmReadDr1 ( - VOID - ); - - -/** - Reads the current value of Debug Register 2 (DR2). - - Reads and returns the current value of DR2. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of Debug Register 2 (DR2). - -**/ -UINTN -EFIAPI -AsmReadDr2 ( - VOID - ); - - -/** - Reads the current value of Debug Register 3 (DR3). - - Reads and returns the current value of DR3. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of Debug Register 3 (DR3). - -**/ -UINTN -EFIAPI -AsmReadDr3 ( - VOID - ); - - -/** - Reads the current value of Debug Register 4 (DR4). - - Reads and returns the current value of DR4. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of Debug Register 4 (DR4). - -**/ -UINTN -EFIAPI -AsmReadDr4 ( - VOID - ); - - -/** - Reads the current value of Debug Register 5 (DR5). - - Reads and returns the current value of DR5. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of Debug Register 5 (DR5). - -**/ -UINTN -EFIAPI -AsmReadDr5 ( - VOID - ); - - -/** - Reads the current value of Debug Register 6 (DR6). - - Reads and returns the current value of DR6. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of Debug Register 6 (DR6). - -**/ -UINTN -EFIAPI -AsmReadDr6 ( - VOID - ); - - -/** - Reads the current value of Debug Register 7 (DR7). - - Reads and returns the current value of DR7. This function is only available - on IA-32 and X64. This returns a 32-bit value on IA-32 and a 64-bit value on - X64. - - @return The value of Debug Register 7 (DR7). - -**/ -UINTN -EFIAPI -AsmReadDr7 ( - VOID - ); - - -/** - Writes a value to Debug Register 0 (DR0). - - Writes and returns a new value to DR0. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Dr0 The value to write to Dr0. - - @return The value written to Debug Register 0 (DR0). - -**/ -UINTN -EFIAPI -AsmWriteDr0 ( - UINTN Dr0 - ); - - -/** - Writes a value to Debug Register 1 (DR1). - - Writes and returns a new value to DR1. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Dr1 The value to write to Dr1. - - @return The value written to Debug Register 1 (DR1). - -**/ -UINTN -EFIAPI -AsmWriteDr1 ( - UINTN Dr1 - ); - - -/** - Writes a value to Debug Register 2 (DR2). - - Writes and returns a new value to DR2. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Dr2 The value to write to Dr2. - - @return The value written to Debug Register 2 (DR2). - -**/ -UINTN -EFIAPI -AsmWriteDr2 ( - UINTN Dr2 - ); - - -/** - Writes a value to Debug Register 3 (DR3). - - Writes and returns a new value to DR3. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Dr3 The value to write to Dr3. - - @return The value written to Debug Register 3 (DR3). - -**/ -UINTN -EFIAPI -AsmWriteDr3 ( - UINTN Dr3 - ); - - -/** - Writes a value to Debug Register 4 (DR4). - - Writes and returns a new value to DR4. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Dr4 The value to write to Dr4. - - @return The value written to Debug Register 4 (DR4). - -**/ -UINTN -EFIAPI -AsmWriteDr4 ( - UINTN Dr4 - ); - - -/** - Writes a value to Debug Register 5 (DR5). - - Writes and returns a new value to DR5. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Dr5 The value to write to Dr5. - - @return The value written to Debug Register 5 (DR5). - -**/ -UINTN -EFIAPI -AsmWriteDr5 ( - UINTN Dr5 - ); - - -/** - Writes a value to Debug Register 6 (DR6). - - Writes and returns a new value to DR6. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Dr6 The value to write to Dr6. - - @return The value written to Debug Register 6 (DR6). - -**/ -UINTN -EFIAPI -AsmWriteDr6 ( - UINTN Dr6 - ); - - -/** - Writes a value to Debug Register 7 (DR7). - - Writes and returns a new value to DR7. This function is only available on - IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64. - - @param Dr7 The value to write to Dr7. - - @return The value written to Debug Register 7 (DR7). - -**/ -UINTN -EFIAPI -AsmWriteDr7 ( - UINTN Dr7 - ); - - -/** - Reads the current value of Code Segment Register (CS). - - Reads and returns the current value of CS. This function is only available on - IA-32 and X64. - - @return The current value of CS. - -**/ -UINT16 -EFIAPI -AsmReadCs ( - VOID - ); - - -/** - Reads the current value of Data Segment Register (DS). - - Reads and returns the current value of DS. This function is only available on - IA-32 and X64. - - @return The current value of DS. - -**/ -UINT16 -EFIAPI -AsmReadDs ( - VOID - ); - - -/** - Reads the current value of Extra Segment Register (ES). - - Reads and returns the current value of ES. This function is only available on - IA-32 and X64. - - @return The current value of ES. - -**/ -UINT16 -EFIAPI -AsmReadEs ( - VOID - ); - - -/** - Reads the current value of FS Data Segment Register (FS). - - Reads and returns the current value of FS. This function is only available on - IA-32 and X64. - - @return The current value of FS. - -**/ -UINT16 -EFIAPI -AsmReadFs ( - VOID - ); - - -/** - Reads the current value of GS Data Segment Register (GS). - - Reads and returns the current value of GS. This function is only available on - IA-32 and X64. - - @return The current value of GS. - -**/ -UINT16 -EFIAPI -AsmReadGs ( - VOID - ); - - -/** - Reads the current value of Stack Segment Register (SS). - - Reads and returns the current value of SS. This function is only available on - IA-32 and X64. - - @return The current value of SS. - -**/ -UINT16 -EFIAPI -AsmReadSs ( - VOID - ); - - -/** - Reads the current value of Task Register (TR). - - Reads and returns the current value of TR. This function is only available on - IA-32 and X64. - - @return The current value of TR. - -**/ -UINT16 -EFIAPI -AsmReadTr ( - VOID - ); - - -/** - Reads the current Global Descriptor Table Register(GDTR) descriptor. - - Reads and returns the current GDTR descriptor and returns it in Gdtr. This - function is only available on IA-32 and X64. - - If Gdtr is NULL, then ASSERT(). - - @param Gdtr Pointer to a GDTR descriptor. - -**/ -VOID -EFIAPI -AsmReadGdtr ( - OUT IA32_DESCRIPTOR *Gdtr - ); - - -/** - Writes the current Global Descriptor Table Register (GDTR) descriptor. - - Writes and the current GDTR descriptor specified by Gdtr. This function is - only available on IA-32 and X64. - - If Gdtr is NULL, then ASSERT(). - - @param Gdtr Pointer to a GDTR descriptor. - -**/ -VOID -EFIAPI -AsmWriteGdtr ( - IN CONST IA32_DESCRIPTOR *Gdtr - ); - - -/** - Reads the current Interrupt Descriptor Table Register(GDTR) descriptor. - - Reads and returns the current IDTR descriptor and returns it in Idtr. This - function is only available on IA-32 and X64. - - If Idtr is NULL, then ASSERT(). - - @param Idtr Pointer to a IDTR descriptor. - -**/ -VOID -EFIAPI -AsmReadIdtr ( - OUT IA32_DESCRIPTOR *Idtr - ); - - -/** - Writes the current Interrupt Descriptor Table Register(GDTR) descriptor. - - Writes the current IDTR descriptor and returns it in Idtr. This function is - only available on IA-32 and X64. - - If Idtr is NULL, then ASSERT(). - - @param Idtr Pointer to a IDTR descriptor. - -**/ -VOID -EFIAPI -AsmWriteIdtr ( - IN CONST IA32_DESCRIPTOR *Idtr - ); - - -/** - Reads the current Local Descriptor Table Register(LDTR) selector. - - Reads and returns the current 16-bit LDTR descriptor value. This function is - only available on IA-32 and X64. - - @return The current selector of LDT. - -**/ -UINT16 -EFIAPI -AsmReadLdtr ( - VOID - ); - - -/** - Writes the current Local Descriptor Table Register (GDTR) selector. - - Writes and the current LDTR descriptor specified by Ldtr. This function is - only available on IA-32 and X64. - - @param Ldtr 16-bit LDTR selector value. - -**/ -VOID -EFIAPI -AsmWriteLdtr ( - IN UINT16 Ldtr - ); - - -/** - Save the current floating point/SSE/SSE2 context to a buffer. - - Saves the current floating point/SSE/SSE2 state to the buffer specified by - Buffer. Buffer must be aligned on a 16-byte boundary. This function is only - available on IA-32 and X64. - - If Buffer is NULL, then ASSERT(). - If Buffer is not aligned on a 16-byte boundary, then ASSERT(). - - @param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context. - -**/ -VOID -EFIAPI -AsmFxSave ( - OUT IA32_FX_BUFFER *Buffer - ); - - -/** - Restores the current floating point/SSE/SSE2 context from a buffer. - - Restores the current floating point/SSE/SSE2 state from the buffer specified - by Buffer. Buffer must be aligned on a 16-byte boundary. This function is - only available on IA-32 and X64. - - If Buffer is NULL, then ASSERT(). - If Buffer is not aligned on a 16-byte boundary, then ASSERT(). - If Buffer was not saved with AsmFxSave(), then ASSERT(). - - @param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context. - -**/ -VOID -EFIAPI -AsmFxRestore ( - IN CONST IA32_FX_BUFFER *Buffer - ); - - -/** - Reads the current value of 64-bit MMX Register #0 (MM0). - - Reads and returns the current value of MM0. This function is only available - on IA-32 and X64. - - @return The current value of MM0. - -**/ -UINT64 -EFIAPI -AsmReadMm0 ( - VOID - ); - - -/** - Reads the current value of 64-bit MMX Register #1 (MM1). - - Reads and returns the current value of MM1. This function is only available - on IA-32 and X64. - - @return The current value of MM1. - -**/ -UINT64 -EFIAPI -AsmReadMm1 ( - VOID - ); - - -/** - Reads the current value of 64-bit MMX Register #2 (MM2). - - Reads and returns the current value of MM2. This function is only available - on IA-32 and X64. - - @return The current value of MM2. - -**/ -UINT64 -EFIAPI -AsmReadMm2 ( - VOID - ); - - -/** - Reads the current value of 64-bit MMX Register #3 (MM3). - - Reads and returns the current value of MM3. This function is only available - on IA-32 and X64. - - @return The current value of MM3. - -**/ -UINT64 -EFIAPI -AsmReadMm3 ( - VOID - ); - - -/** - Reads the current value of 64-bit MMX Register #4 (MM4). - - Reads and returns the current value of MM4. This function is only available - on IA-32 and X64. - - @return The current value of MM4. - -**/ -UINT64 -EFIAPI -AsmReadMm4 ( - VOID - ); - - -/** - Reads the current value of 64-bit MMX Register #5 (MM5). - - Reads and returns the current value of MM5. This function is only available - on IA-32 and X64. - - @return The current value of MM5. - -**/ -UINT64 -EFIAPI -AsmReadMm5 ( - VOID - ); - - -/** - Reads the current value of 64-bit MMX Register #6 (MM6). - - Reads and returns the current value of MM6. This function is only available - on IA-32 and X64. - - @return The current value of MM6. - -**/ -UINT64 -EFIAPI -AsmReadMm6 ( - VOID - ); - - -/** - Reads the current value of 64-bit MMX Register #7 (MM7). - - Reads and returns the current value of MM7. This function is only available - on IA-32 and X64. - - @return The current value of MM7. - -**/ -UINT64 -EFIAPI -AsmReadMm7 ( - VOID - ); - - -/** - Writes the current value of 64-bit MMX Register #0 (MM0). - - Writes the current value of MM0. This function is only available on IA32 and - X64. - - @param Value The 64-bit value to write to MM0. - -**/ -VOID -EFIAPI -AsmWriteMm0 ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit MMX Register #1 (MM1). - - Writes the current value of MM1. This function is only available on IA32 and - X64. - - @param Value The 64-bit value to write to MM1. - -**/ -VOID -EFIAPI -AsmWriteMm1 ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit MMX Register #2 (MM2). - - Writes the current value of MM2. This function is only available on IA32 and - X64. - - @param Value The 64-bit value to write to MM2. - -**/ -VOID -EFIAPI -AsmWriteMm2 ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit MMX Register #3 (MM3). - - Writes the current value of MM3. This function is only available on IA32 and - X64. - - @param Value The 64-bit value to write to MM3. - -**/ -VOID -EFIAPI -AsmWriteMm3 ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit MMX Register #4 (MM4). - - Writes the current value of MM4. This function is only available on IA32 and - X64. - - @param Value The 64-bit value to write to MM4. - -**/ -VOID -EFIAPI -AsmWriteMm4 ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit MMX Register #5 (MM5). - - Writes the current value of MM5. This function is only available on IA32 and - X64. - - @param Value The 64-bit value to write to MM5. - -**/ -VOID -EFIAPI -AsmWriteMm5 ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit MMX Register #6 (MM6). - - Writes the current value of MM6. This function is only available on IA32 and - X64. - - @param Value The 64-bit value to write to MM6. - -**/ -VOID -EFIAPI -AsmWriteMm6 ( - IN UINT64 Value - ); - - -/** - Writes the current value of 64-bit MMX Register #7 (MM7). - - Writes the current value of MM7. This function is only available on IA32 and - X64. - - @param Value The 64-bit value to write to MM7. - -**/ -VOID -EFIAPI -AsmWriteMm7 ( - IN UINT64 Value - ); - - -/** - Reads the current value of Time Stamp Counter (TSC). - - Reads and returns the current value of TSC. This function is only available - on IA-32 and X64. - - @return The current value of TSC - -**/ -UINT64 -EFIAPI -AsmReadTsc ( - VOID - ); - - -/** - Reads the current value of a Performance Counter (PMC). - - Reads and returns the current value of performance counter specified by - Index. This function is only available on IA-32 and X64. - - @param Index The 32-bit Performance Counter index to read. - - @return The value of the PMC specified by Index. - -**/ -UINT64 -EFIAPI -AsmReadPmc ( - IN UINT32 Index - ); - - -/** - Sets up a monitor buffer that is used by AsmMwait(). - - Executes a MONITOR instruction with the register state specified by Eax, Ecx - and Edx. Returns Eax. This function is only available on IA-32 and X64. - - @param Eax The value to load into EAX or RAX before executing the MONITOR - instruction. - @param Ecx The value to load into ECX or RCX before executing the MONITOR - instruction. - @param Edx The value to load into EDX or RDX before executing the MONITOR - instruction. - - @return Eax - -**/ -UINTN -EFIAPI -AsmMonitor ( - IN UINTN Eax, - IN UINTN Ecx, - IN UINTN Edx - ); - - -/** - Executes an MWAIT instruction. - - Executes an MWAIT instruction with the register state specified by Eax and - Ecx. Returns Eax. This function is only available on IA-32 and X64. - - @param Eax The value to load into EAX or RAX before executing the MONITOR - instruction. - @param Ecx The value to load into ECX or RCX before executing the MONITOR - instruction. - - @return Eax - -**/ -UINTN -EFIAPI -AsmMwait ( - IN UINTN Eax, - IN UINTN Ecx - ); - - -/** - Executes a WBINVD instruction. - - Executes a WBINVD instruction. This function is only available on IA-32 and - X64. - -**/ -VOID -EFIAPI -AsmWbinvd ( - VOID - ); - - -/** - Executes a INVD instruction. - - Executes a INVD instruction. This function is only available on IA-32 and - X64. - -**/ -VOID -EFIAPI -AsmInvd ( - VOID - ); - - -/** - Flushes a cache line from all the instruction and data caches within the - coherency domain of the CPU. - - Flushed the cache line specified by LinearAddress, and returns LinearAddress. - This function is only available on IA-32 and X64. - - @param LinearAddress The address of the cache line to flush. If the CPU is - in a physical addressing mode, then LinearAddress is a - physical address. If the CPU is in a virtual - addressing mode, then LinearAddress is a virtual - address. - - @return LinearAddress -**/ -VOID * -EFIAPI -AsmFlushCacheLine ( - IN VOID *LinearAddress - ); - - -/** - Enables the 32-bit paging mode on the CPU. - - Enables the 32-bit paging mode on the CPU. CR0, CR3, CR4, and the page tables - must be properly initialized prior to calling this service. This function - assumes the current execution mode is 32-bit protected mode. This function is - only available on IA-32. After the 32-bit paging mode is enabled, control is - transferred to the function specified by EntryPoint using the new stack - specified by NewStack and passing in the parameters specified by Context1 and - Context2. Context1 and Context2 are optional and may be NULL. The function - EntryPoint must never return. - - If the current execution mode is not 32-bit protected mode, then ASSERT(). - If EntryPoint is NULL, then ASSERT(). - If NewStack is NULL, then ASSERT(). - - There are a number of constraints that must be followed before calling this - function: - 1) Interrupts must be disabled. - 2) The caller must be in 32-bit protected mode with flat descriptors. This - means all descriptors must have a base of 0 and a limit of 4GB. - 3) CR0 and CR4 must be compatible with 32-bit protected mode with flat - descriptors. - 4) CR3 must point to valid page tables that will be used once the transition - is complete, and those page tables must guarantee that the pages for this - function and the stack are identity mapped. - - @param EntryPoint A pointer to function to call with the new stack after - paging is enabled. - @param Context1 A pointer to the context to pass into the EntryPoint - function as the first parameter after paging is enabled. - @param Context2 A pointer to the context to pass into the EntryPoint - function as the second parameter after paging is enabled. - @param NewStack A pointer to the new stack to use for the EntryPoint - function after paging is enabled. - -**/ -VOID -EFIAPI -AsmEnablePaging32 ( - IN SWITCH_STACK_ENTRY_POINT EntryPoint, - IN VOID *Context1, OPTIONAL - IN VOID *Context2, OPTIONAL - IN VOID *NewStack - ); - - -/** - Disables the 32-bit paging mode on the CPU. - - Disables the 32-bit paging mode on the CPU and returns to 32-bit protected - mode. This function assumes the current execution mode is 32-paged protected - mode. This function is only available on IA-32. After the 32-bit paging mode - is disabled, control is transferred to the function specified by EntryPoint - using the new stack specified by NewStack and passing in the parameters - specified by Context1 and Context2. Context1 and Context2 are optional and - may be NULL. The function EntryPoint must never return. - - If the current execution mode is not 32-bit paged mode, then ASSERT(). - If EntryPoint is NULL, then ASSERT(). - If NewStack is NULL, then ASSERT(). - - There are a number of constraints that must be followed before calling this - function: - 1) Interrupts must be disabled. - 2) The caller must be in 32-bit paged mode. - 3) CR0, CR3, and CR4 must be compatible with 32-bit paged mode. - 4) CR3 must point to valid page tables that guarantee that the pages for - this function and the stack are identity mapped. - - @param EntryPoint A pointer to function to call with the new stack after - paging is disabled. - @param Context1 A pointer to the context to pass into the EntryPoint - function as the first parameter after paging is disabled. - @param Context2 A pointer to the context to pass into the EntryPoint - function as the second parameter after paging is - disabled. - @param NewStack A pointer to the new stack to use for the EntryPoint - function after paging is disabled. - -**/ -VOID -EFIAPI -AsmDisablePaging32 ( - IN SWITCH_STACK_ENTRY_POINT EntryPoint, - IN VOID *Context1, OPTIONAL - IN VOID *Context2, OPTIONAL - IN VOID *NewStack - ); - - -/** - Enables the 64-bit paging mode on the CPU. - - Enables the 64-bit paging mode on the CPU. CR0, CR3, CR4, and the page tables - must be properly initialized prior to calling this service. This function - assumes the current execution mode is 32-bit protected mode with flat - descriptors. This function is only available on IA-32. After the 64-bit - paging mode is enabled, control is transferred to the function specified by - EntryPoint using the new stack specified by NewStack and passing in the - parameters specified by Context1 and Context2. Context1 and Context2 are - optional and may be 0. The function EntryPoint must never return. - - If the current execution mode is not 32-bit protected mode with flat - descriptors, then ASSERT(). - If EntryPoint is 0, then ASSERT(). - If NewStack is 0, then ASSERT(). - - @param Cs The 16-bit selector to load in the CS before EntryPoint - is called. The descriptor in the GDT that this selector - references must be setup for long mode. - @param EntryPoint The 64-bit virtual address of the function to call with - the new stack after paging is enabled. - @param Context1 The 64-bit virtual address of the context to pass into - the EntryPoint function as the first parameter after - paging is enabled. - @param Context2 The 64-bit virtual address of the context to pass into - the EntryPoint function as the second parameter after - paging is enabled. - @param NewStack The 64-bit virtual address of the new stack to use for - the EntryPoint function after paging is enabled. - -**/ -VOID -EFIAPI -AsmEnablePaging64 ( - IN UINT16 CodeSelector, - IN UINT64 EntryPoint, - IN UINT64 Context1, OPTIONAL - IN UINT64 Context2, OPTIONAL - IN UINT64 NewStack - ); - - -/** - Disables the 64-bit paging mode on the CPU. - - Disables the 64-bit paging mode on the CPU and returns to 32-bit protected - mode. This function assumes the current execution mode is 64-paging mode. - This function is only available on X64. After the 64-bit paging mode is - disabled, control is transferred to the function specified by EntryPoint - using the new stack specified by NewStack and passing in the parameters - specified by Context1 and Context2. Context1 and Context2 are optional and - may be 0. The function EntryPoint must never return. - - If the current execution mode is not 64-bit paged mode, then ASSERT(). - If EntryPoint is 0, then ASSERT(). - If NewStack is 0, then ASSERT(). - - @param Cs The 16-bit selector to load in the CS before EntryPoint - is called. The descriptor in the GDT that this selector - references must be setup for 32-bit protected mode. - @param EntryPoint The 64-bit virtual address of the function to call with - the new stack after paging is disabled. - @param Context1 The 64-bit virtual address of the context to pass into - the EntryPoint function as the first parameter after - paging is disabled. - @param Context2 The 64-bit virtual address of the context to pass into - the EntryPoint function as the second parameter after - paging is disabled. - @param NewStack The 64-bit virtual address of the new stack to use for - the EntryPoint function after paging is disabled. - -**/ -VOID -EFIAPI -AsmDisablePaging64 ( - IN UINT16 CodeSelector, - IN UINT32 EntryPoint, - IN UINT32 Context1, OPTIONAL - IN UINT32 Context2, OPTIONAL - IN UINT32 NewStack - ); - - -// -// 16-bit thunking services -// - -/** - Retrieves the properties for 16-bit thunk functions. - - Computes the size of the buffer and stack below 1MB required to use the - AsmPrepareThunk16(), AsmThunk16() and AsmPrepareAndThunk16() functions. This - buffer size is returned in RealModeBufferSize, and the stack size is returned - in ExtraStackSize. If parameters are passed to the 16-bit real mode code, - then the actual minimum stack size is ExtraStackSize plus the maximum number - of bytes that need to be passed to the 16-bit real mode code. - - If RealModeBufferSize is NULL, then ASSERT(). - If ExtraStackSize is NULL, then ASSERT(). - - @param RealModeBufferSize A pointer to the size of the buffer below 1MB - required to use the 16-bit thunk functions. - @param ExtraStackSize A pointer to the extra size of stack below 1MB - that the 16-bit thunk functions require for - temporary storage in the transition to and from - 16-bit real mode. - -**/ -VOID -EFIAPI -AsmGetThunk16Properties ( - OUT UINT32 *RealModeBufferSize, - OUT UINT32 *ExtraStackSize - ); - - -/** - Prepares all structures a code required to use AsmThunk16(). - - Prepares all structures and code required to use AsmThunk16(). - - If ThunkContext is NULL, then ASSERT(). - - @param ThunkContext A pointer to the context structure that describes the - 16-bit real mode code to call. - -**/ -VOID -EFIAPI -AsmPrepareThunk16 ( - OUT THUNK_CONTEXT *ThunkContext - ); - - -/** - Transfers control to a 16-bit real mode entry point and returns the results. - - Transfers control to a 16-bit real mode entry point and returns the results. - AsmPrepareThunk16() must be called with ThunkContext before this function is - used. - - If ThunkContext is NULL, then ASSERT(). - If AsmPrepareThunk16() was not previously called with ThunkContext, then ASSERT(). - - @param ThunkContext A pointer to the context structure that describes the - 16-bit real mode code to call. - -**/ -VOID -EFIAPI -AsmThunk16 ( - IN OUT THUNK_CONTEXT *ThunkContext - ); - - -/** - Prepares all structures and code for a 16-bit real mode thunk, transfers - control to a 16-bit real mode entry point, and returns the results. - - Prepares all structures and code for a 16-bit real mode thunk, transfers - control to a 16-bit real mode entry point, and returns the results. If the - caller only need to perform a single 16-bit real mode thunk, then this - service should be used. If the caller intends to make more than one 16-bit - real mode thunk, then it is more efficient if AsmPrepareThunk16() is called - once and AsmThunk16() can be called for each 16-bit real mode thunk. - - If ThunkContext is NULL, then ASSERT(). - - @param ThunkContext A pointer to the context structure that describes the - 16-bit real mode code to call. - -**/ -VOID -EFIAPI -AsmPrepareAndThunk16 ( - IN OUT THUNK_CONTEXT *ThunkContext - ); - -#else - -#endif - -#endif - |