1. added functions header for BaseUefiDecompressLi
2. added some internal functions header for BaseLib 3. added EFIAPI for some internal assembly files declare git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1050 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
@@ -21,6 +21,19 @@
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// Math functions
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//
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/**
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Worker functons that shifts a 64-bit integer left between 0 and 63 bits. The low bits
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are filled with zeros. The shifted value is returned.
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This function shifts the 64-bit value Operand to the left by Count bits. The
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low Count bits are set to zero. The shifted value is returned.
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@param Operand The 64-bit operand to shift left.
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@param Count The number of bits to shift left.
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@return Operand << Count
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**/
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UINT64
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EFIAPI
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InternalMathLShiftU64 (
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@@ -28,6 +41,19 @@ InternalMathLShiftU64 (
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IN UINTN Count
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);
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/**
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Worker functon that shifts a 64-bit integer right between 0 and 63 bits. This high bits
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are filled with zeros. The shifted value is returned.
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This function shifts the 64-bit value Operand to the right by Count bits. The
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high Count bits are set to zero. The shifted value is returned.
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@param Operand The 64-bit operand to shift right.
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@param Count The number of bits to shift right.
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@return Operand >> Count
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**/
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UINT64
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EFIAPI
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InternalMathRShiftU64 (
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@@ -35,6 +61,19 @@ InternalMathRShiftU64 (
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IN UINTN Count
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);
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/**
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Worker function that shifts a 64-bit integer right between 0 and 63 bits. The high bits
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are filled with original integer's bit 63. The shifted value is returned.
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This function shifts the 64-bit value Operand to the right by Count bits. The
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high Count bits are set to bit 63 of Operand. The shifted value is returned.
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@param Operand The 64-bit operand to shift right.
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@param Count The number of bits to shift right.
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@return Operand arithmetically shifted right by Count
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**/
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UINT64
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EFIAPI
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InternalMathARShiftU64 (
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@@ -42,6 +81,20 @@ InternalMathARShiftU64 (
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IN UINTN Count
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);
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/**
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Worker function that rotates a 64-bit integer left between 0 and 63 bits, filling
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the low bits with the high bits that were rotated.
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This function rotates the 64-bit value Operand to the left by Count bits. The
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low Count bits are fill with the high Count bits of Operand. The rotated
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value is returned.
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@param Operand The 64-bit operand to rotate left.
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@param Count The number of bits to rotate left.
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@return Operand <<< Count
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**/
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UINT64
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EFIAPI
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InternalMathLRotU64 (
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@@ -49,6 +102,20 @@ InternalMathLRotU64 (
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IN UINTN Count
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);
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/**
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Worker function that rotates a 64-bit integer right between 0 and 63 bits, filling
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the high bits with the high low bits that were rotated.
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This function rotates the 64-bit value Operand to the right by Count bits.
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The high Count bits are fill with the low Count bits of Operand. The rotated
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value is returned.
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@param Operand The 64-bit operand to rotate right.
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@param Count The number of bits to rotate right.
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@return Operand >>> Count
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**/
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UINT64
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EFIAPI
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InternalMathRRotU64 (
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@@ -56,12 +123,38 @@ InternalMathRRotU64 (
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IN UINTN Count
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);
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/**
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Worker function that switches the endianess of a 64-bit integer.
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This function swaps the bytes in a 64-bit unsigned value to switch the value
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from little endian to big endian or vice versa. The byte swapped value is
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returned.
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@param Operand A 64-bit unsigned value.
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@return The byte swaped Operand.
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**/
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UINT64
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EFIAPI
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InternalMathSwapBytes64 (
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IN UINT64 Operand
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);
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/**
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Worker function that multiples a 64-bit unsigned integer by a 32-bit unsigned integer
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and generates a 64-bit unsigned result.
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This function multiples the 64-bit unsigned value Multiplicand by the 32-bit
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unsigned value Multiplier and generates a 64-bit unsigned result. This 64-
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bit unsigned result is returned.
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@param Multiplicand A 64-bit unsigned value.
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@param Multiplier A 32-bit unsigned value.
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@return Multiplicand * Multiplier
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**/
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UINT64
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EFIAPI
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InternalMathMultU64x32 (
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@@ -69,6 +162,20 @@ InternalMathMultU64x32 (
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IN UINT32 Multiplier
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);
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/**
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Worker function that multiples a 64-bit unsigned integer by a 64-bit unsigned integer
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and generates a 64-bit unsigned result.
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This function multiples the 64-bit unsigned value Multiplicand by the 64-bit
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unsigned value Multiplier and generates a 64-bit unsigned result. This 64-
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bit unsigned result is returned.
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@param Multiplicand A 64-bit unsigned value.
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@param Multiplier A 64-bit unsigned value.
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@return Multiplicand * Multiplier
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**/
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UINT64
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EFIAPI
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InternalMathMultU64x64 (
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@@ -76,6 +183,20 @@ InternalMathMultU64x64 (
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IN UINT64 Multiplier
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);
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/**
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Worker function that divides a 64-bit unsigned integer by a 32-bit unsigned integer and
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generates a 64-bit unsigned result.
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This function divides the 64-bit unsigned value Dividend by the 32-bit
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unsigned value Divisor and generates a 64-bit unsigned quotient. This
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function returns the 64-bit unsigned quotient.
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@param Dividend A 64-bit unsigned value.
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@param Divisor A 32-bit unsigned value.
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@return Dividend / Divisor
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**/
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UINT64
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EFIAPI
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InternalMathDivU64x32 (
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@@ -83,6 +204,20 @@ InternalMathDivU64x32 (
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IN UINT32 Divisor
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);
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/**
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Worker function that divides a 64-bit unsigned integer by a 32-bit unsigned integer and
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generates a 32-bit unsigned remainder.
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This function divides the 64-bit unsigned value Dividend by the 32-bit
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unsigned value Divisor and generates a 32-bit remainder. This function
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returns the 32-bit unsigned remainder.
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@param Dividend A 64-bit unsigned value.
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@param Divisor A 32-bit unsigned value.
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@return Dividend % Divisor
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**/
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UINT32
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EFIAPI
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InternalMathModU64x32 (
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@@ -90,6 +225,23 @@ InternalMathModU64x32 (
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IN UINT32 Divisor
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);
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/**
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Worker function that divides a 64-bit unsigned integer by a 32-bit unsigned integer and
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generates a 64-bit unsigned result and an optional 32-bit unsigned remainder.
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This function divides the 64-bit unsigned value Dividend by the 32-bit
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unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder
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is not NULL, then the 32-bit unsigned remainder is returned in Remainder.
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This function returns the 64-bit unsigned quotient.
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@param Dividend A 64-bit unsigned value.
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@param Divisor A 32-bit unsigned value.
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@param Remainder A pointer to a 32-bit unsigned value. This parameter is
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optional and may be NULL.
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@return Dividend / Divisor
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**/
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UINT64
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EFIAPI
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InternalMathDivRemU64x32 (
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@@ -98,6 +250,23 @@ InternalMathDivRemU64x32 (
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OUT UINT32 *Remainder
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);
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/**
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Worker function that divides a 64-bit unsigned integer by a 64-bit unsigned integer and
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generates a 64-bit unsigned result and an optional 64-bit unsigned remainder.
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This function divides the 64-bit unsigned value Dividend by the 64-bit
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unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder
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is not NULL, then the 64-bit unsigned remainder is returned in Remainder.
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This function returns the 64-bit unsigned quotient.
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@param Dividend A 64-bit unsigned value.
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@param Divisor A 64-bit unsigned value.
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@param Remainder A pointer to a 64-bit unsigned value. This parameter is
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optional and may be NULL.
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@return Dividend / Divisor
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**/
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UINT64
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EFIAPI
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InternalMathDivRemU64x64 (
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@@ -106,16 +275,48 @@ InternalMathDivRemU64x64 (
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OUT UINT64 *Remainder
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);
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/**
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Worker function that divides a 64-bit signed integer by a 64-bit signed integer and
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generates a 64-bit signed result and a optional 64-bit signed remainder.
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This function divides the 64-bit unsigned value Dividend by the 64-bit
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unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder
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is not NULL, then the 64-bit unsigned remainder is returned in Remainder.
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This function returns the 64-bit unsigned quotient.
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@param Dividend A 64-bit signed value.
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@param Divisor A 64-bit signed value.
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@param Remainder A pointer to a 64-bit signed value. This parameter is
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optional and may be NULL.
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@return Dividend / Divisor
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**/
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INT64
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EFIAPI
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InternalMathDivRemS64x64 (
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IN INT64 Dividend,
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IN INT64 Divisor,
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OUT INT64 *Remainder
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OUT INT64 *Remainder OPTIONAL
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);
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/**
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Transfers control to a function starting with a new stack.
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Transfers control to the function specified by EntryPoint using the new stack
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specified by NewStack and passing in the parameters specified by Context1 and
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Context2. Context1 and Context2 are optional and may be NULL. The function
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EntryPoint must never return.
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@param EntryPoint A pointer to function to call with the new stack.
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@param Context1 A pointer to the context to pass into the EntryPoint
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function.
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@param Context2 A pointer to the context to pass into the EntryPoint
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function.
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@param NewStack A pointer to the new stack to use for the EntryPoint
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function.
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**/
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VOID
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EFIAPI
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InternalSwitchStack (
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IN SWITCH_STACK_ENTRY_POINT EntryPoint,
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IN VOID *Context1,
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@@ -127,42 +328,131 @@ InternalSwitchStack (
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// Ia32 and x64 specific functions
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//
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/**
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Reads the current Global Descriptor Table Register(GDTR) descriptor.
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Reads and returns the current GDTR descriptor and returns it in Gdtr. This
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function is only available on IA-32 and X64.
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@param Gdtr Pointer to a GDTR descriptor.
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**/
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VOID
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EFIAPI
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InternalX86ReadGdtr (
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OUT IA32_DESCRIPTOR *Gdtr
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);
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/**
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Writes the current Global Descriptor Table Register (GDTR) descriptor.
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Writes and the current GDTR descriptor specified by Gdtr. This function is
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only available on IA-32 and X64.
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@param Gdtr Pointer to a GDTR descriptor.
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**/
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VOID
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EFIAPI
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InternalX86WriteGdtr (
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IN CONST IA32_DESCRIPTOR *Gdtr
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);
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/**
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Reads the current Interrupt Descriptor Table Register(GDTR) descriptor.
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Reads and returns the current IDTR descriptor and returns it in Idtr. This
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function is only available on IA-32 and X64.
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@param Idtr Pointer to a IDTR descriptor.
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**/
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VOID
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EFIAPI
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InternalX86ReadIdtr (
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OUT IA32_DESCRIPTOR *Idtr
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);
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/**
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Writes the current Interrupt Descriptor Table Register(GDTR) descriptor.
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Writes the current IDTR descriptor and returns it in Idtr. This function is
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only available on IA-32 and X64.
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@param Idtr Pointer to a IDTR descriptor.
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**/
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VOID
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EFIAPI
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InternalX86WriteIdtr (
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IN CONST IA32_DESCRIPTOR *Idtr
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);
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/**
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Save the current floating point/SSE/SSE2 context to a buffer.
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Saves the current floating point/SSE/SSE2 state to the buffer specified by
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Buffer. Buffer must be aligned on a 16-byte boundary. This function is only
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available on IA-32 and X64.
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@param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context.
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**/
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VOID
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EFIAPI
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InternalX86FxSave (
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OUT IA32_FX_BUFFER *Buffer
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);
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/**
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Restores the current floating point/SSE/SSE2 context from a buffer.
|
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Restores the current floating point/SSE/SSE2 state from the buffer specified
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by Buffer. Buffer must be aligned on a 16-byte boundary. This function is
|
||||
only available on IA-32 and X64.
|
||||
|
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@param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context.
|
||||
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**/
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VOID
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EFIAPI
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InternalX86FxRestore (
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IN CONST IA32_FX_BUFFER *Buffer
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);
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/**
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Enables the 32-bit paging mode on the CPU.
|
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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.
|
||||
|
||||
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
|
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function and the stack are identity mapped.
|
||||
|
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@param EntryPoint A pointer to function to call with the new stack after
|
||||
paging is enabled.
|
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@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
|
||||
InternalX86EnablePaging32 (
|
||||
@@ -172,6 +462,36 @@ InternalX86EnablePaging32 (
|
||||
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.
|
||||
|
||||
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
|
||||
InternalX86DisablePaging32 (
|
||||
@@ -181,6 +501,33 @@ InternalX86DisablePaging32 (
|
||||
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.
|
||||
|
||||
@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
|
||||
InternalX86EnablePaging64 (
|
||||
@@ -191,6 +538,32 @@ InternalX86EnablePaging64 (
|
||||
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.
|
||||
|
||||
@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
|
||||
InternalX86DisablePaging64 (
|
||||
|
||||
Reference in New Issue
Block a user