Update to make end-of-line consistent for all source files in MdePkg. There are no other updates besides that change.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9141 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 1758 insertions, 1758 deletions

diff --git a/MdePkg/Library/BaseLib/Ia32/GccInline.c b/MdePkg/Library/BaseLib/Ia32/GccInline.c
index 6118676..e0600e1 100644
--- a/MdePkg/Library/BaseLib/Ia32/GccInline.c
+++ b/MdePkg/Library/BaseLib/Ia32/GccInline.c
@@ -1,1758 +1,1758 @@
-/** @file
-  GCC inline implementation of BaseLib processor specific functions.
-  
-  Copyright (c) 2006 - 2007, Intel Corporation<BR>
-  Portions copyright (c) 2008-2009 Apple Inc.<BR>
-  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.
-
-**/
-
-
-#include "BaseLibInternals.h"
-
-
-
-/**
-  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
-  )
-{
-  // This is a little bit of overkill and it is more about the compiler that it is
-  // actually processor syncronization. This is like the _ReadWriteBarrier 
-  // Microsft specific intrinsic
-  __asm__ __volatile__ ("":::"memory");
-}
-
-
-/**
-  Enables CPU interrupts.
-
-  Enables CPU interrupts.
-
-**/
-VOID
-EFIAPI
-EnableInterrupts (
-  VOID
-  )
-{
-  __asm__ __volatile__ ("sti"::: "memory");
-}
-
-
-/**
-  Disables CPU interrupts.
-
-  Disables CPU interrupts.
-
-**/
-VOID
-EFIAPI
-DisableInterrupts (
-  VOID
-  )
-{  
-  __asm__ __volatile__ ("cli"::: "memory");
-}
-
-
-
-
-/**
-  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
-  )
-{
-  __asm__ __volatile__ ("pause");
-}
-
-
-/**
-  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
-  )
-{
-  __asm__ __volatile__ ("int $3");
-}
-
-
-
-/**
-  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
-  )
-{
-  UINT64 Data;
-  
-  __asm__ __volatile__ (
-    "rdmsr"
-    : "=A" (Data)   // %0
-    : "c"  (Index)  // %1
-    );
-    
-  return Data;
-}
-
-/**
-  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
-  )
-{
-  __asm__ __volatile__ (
-    "wrmsr"
-    :
-    : "c" (Index),
-      "A" (Value)
-    );
-    
-  return Value;
-}
-
-
-
-/**
-  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
-  )
-{
-  UINTN Eflags;
-  
-  __asm__ __volatile__ (
-    "pushfl     \n\t"
-    "popl %0        "
-    : "=r" (Eflags)
-    );
-    
-  return Eflags;
-}
-
-
-
-/**
-  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
-  )
-{
-  UINTN   Data;
-  
-  __asm__ __volatile__ (
-    "movl %%cr0,%0" 
-    : "=a" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%cr2, %0" 
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%cr3, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%cr4, %0"
-    : "=a" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%cr0"
-    :
-    : "r" (Cr0)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%cr2"
-    :
-    : "r" (Cr2)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%cr3"
-    :
-    : "r" (Cr3)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%cr4"
-    :
-    : "r" (Cr4)
-    );
-  return 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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%dr0, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%dr1, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%dr2, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%dr3, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%dr4, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%dr5, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%dr6, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINTN Data;
-  
-  __asm__ __volatile__ (
-    "movl %%dr7, %0"
-    : "=r" (Data)
-    );
-  
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%dr0"
-    :
-    : "r" (Dr0)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%dr1"
-    :
-    : "r" (Dr1)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%dr2"
-    :
-    : "r" (Dr2)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%dr3"
-    :
-    : "r" (Dr3)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%dr4"
-    :
-    : "r" (Dr4)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%dr5"
-    :
-    : "r" (Dr5)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%dr6"
-    :
-    : "r" (Dr6)
-    );
-  return 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
-  )
-{
-  __asm__ __volatile__ (
-    "movl %0, %%dr7"
-    :
-    : "r" (Dr7)
-    );
-  return 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
-  )
-{
-  UINT16  Data;
-  
-  __asm__ __volatile__ (
-    "mov   %%cs, %0"
-    :"=a" (Data)
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT16  Data;
-  
-  __asm__ __volatile__ (
-    "mov  %%ds, %0"
-    :"=a" (Data)
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT16  Data;
-  
-  __asm__ __volatile__ (
-    "mov  %%es, %0"
-    :"=a" (Data)
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT16  Data;
-  
-  __asm__ __volatile__ (
-    "mov  %%fs, %0"
-    :"=a" (Data)
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT16  Data;
-  
-  __asm__ __volatile__ (
-    "mov  %%gs, %0"
-    :"=a" (Data)
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT16  Data;
-  
-  __asm__ __volatile__ (
-    "mov  %%ds, %0"
-    :"=a" (Data)
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT16  Data;
-  
-  __asm__ __volatile__ (
-    "str  %0"
-    : "=a" (Data)
-    );
-    
-  return Data;
-}
-
-
-/**
-  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.
-
-  @param  Gdtr  Pointer to a GDTR descriptor.
-
-**/
-VOID
-EFIAPI
-InternalX86ReadGdtr (
-  OUT     IA32_DESCRIPTOR           *Gdtr
-  )
-{
-  __asm__ __volatile__ (
-    "sgdt %0"
-    : "=m" (*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.
-
-  @param  Gdtr  Pointer to a GDTR descriptor.
-
-**/
-VOID
-EFIAPI
-InternalX86WriteGdtr (
-  IN      CONST IA32_DESCRIPTOR     *Gdtr
-  )
-{
-  __asm__ __volatile__ (
-    "lgdt %0"
-    :
-    : "m" (*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.
-
-  @param  Idtr  Pointer to a IDTR descriptor.
-
-**/
-VOID
-EFIAPI
-InternalX86ReadIdtr (
-  OUT     IA32_DESCRIPTOR           *Ldtr
-  )
-{
-  __asm__ __volatile__ (
-    "sldt  %0"
-    : "=m" (*Ldtr)
-    );
-}
-
-
-/**
-  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.
-
-  @param  Idtr  Pointer to a IDTR descriptor.
-
-**/
-VOID
-EFIAPI
-InternalX86WriteIdtr (
-  IN      CONST IA32_DESCRIPTOR     *Ldtr
-  )
-{
-  __asm__ __volatile__ (
-    "lidt %0"
-    :
-    : "m" (*Ldtr)
-    );
-}
-
-
-/**
-  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
-  )
-{
-  UINT16  Data;
-  
-  __asm__ __volatile__ (
-    "sldt  %0"
-    : "=g" (Data)   // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  __asm__ __volatile__ (
-    "lldtw  %0"
-    :
-    : "g" (Ldtr)   // %0
-    );
-}
-
-
-/**
-  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.
-
-  @param  Buffer  Pointer to a buffer to save the floating point/SSE/SSE2 context.
-
-**/
-VOID
-EFIAPI
-InternalX86FxSave (
-  OUT     IA32_FX_BUFFER            *Buffer
-  )
-{
-  __asm__ __volatile__ (
-    "fxsave %0"
-    :
-    : "m" (*Buffer)  // %0
-    );    
-}
-
-
-/**
-  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.
-
-  @param  Buffer  Pointer to a buffer to save the floating point/SSE/SSE2 context.
-
-**/
-VOID
-EFIAPI
-InternalX86FxRestore (
-  IN      CONST IA32_FX_BUFFER      *Buffer
-  )
-{
-  __asm__ __volatile__ (
-    "fxrstor %0"
-    :
-    : "m" (*Buffer)  // %0
-    );
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-
-  __asm__ __volatile__ (
-    "push %%eax          \n\t"
-    "push %%eax          \n\t"
-    "movq %%mm0,  (%%esp)\n\t"
-    "pop  %%eax          \n\t"
-    "pop  %%edx          \n\t"
-    : "=A"  (Data)       // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-
-  __asm__ __volatile__ (
-    "push %%eax          \n\t"
-    "push %%eax          \n\t"
-    "movq %%mm1,  (%%esp)\n\t"
-    "pop  %%eax          \n\t"
-    "pop  %%edx          \n\t"
-    : "=A"  (Data)       // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-
-  __asm__ __volatile__ (
-    "push %%eax          \n\t"
-    "push %%eax          \n\t"
-    "movq %%mm2,  (%%esp)\n\t"
-    "pop  %%eax          \n\t"
-    "pop  %%edx          \n\t"
-    : "=A"  (Data)       // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-
-  __asm__ __volatile__ (
-    "push %%eax          \n\t"
-    "push %%eax          \n\t"
-    "movq %%mm3,  (%%esp)\n\t"
-    "pop  %%eax          \n\t"
-    "pop  %%edx          \n\t"
-    : "=A"  (Data)       // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-
-  __asm__ __volatile__ (
-    "push %%eax          \n\t"
-    "push %%eax          \n\t"
-    "movq %%mm4,  (%%esp)\n\t"
-    "pop  %%eax          \n\t"
-    "pop  %%edx          \n\t"
-    : "=A"  (Data)       // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-
-  __asm__ __volatile__ (
-    "push %%eax          \n\t"
-    "push %%eax          \n\t"
-    "movq %%mm5,  (%%esp)\n\t"
-    "pop  %%eax          \n\t"
-    "pop  %%edx          \n\t"
-    : "=A"  (Data)       // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-
-  __asm__ __volatile__ (
-    "push %%eax          \n\t"
-    "push %%eax          \n\t"
-    "movq %%mm6,  (%%esp)\n\t"
-    "pop  %%eax          \n\t"
-    "pop  %%edx          \n\t"
-    : "=A"  (Data)       // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-
-  __asm__ __volatile__ (
-    "push %%eax          \n\t"
-    "push %%eax          \n\t"
-    "movq %%mm7,  (%%esp)\n\t"
-    "pop  %%eax          \n\t"
-    "pop  %%edx          \n\t"
-    : "=A"  (Data)       // %0
-    );
-    
-  return Data;
-}
-
-
-/**
-  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
-  )
-{
-  __asm__ __volatile__ (
-    "movq %0, %%mm0"  // %0
-    :  
-    : "m" (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
-  )
-{
-  __asm__ __volatile__ (
-    "movq %0, %%mm1"  // %0
-    :  
-    : "m" (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
-  )
-{
-  __asm__ __volatile__ (
-    "movq %0, %%mm2"  // %0
-    :  
-    : "m" (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
-  )
-{
-  __asm__ __volatile__ (
-    "movq %0, %%mm3"  // %0
-    :  
-    : "m" (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
-  )
-{
-  __asm__ __volatile__ (
-    "movq %0, %%mm4"  // %0
-    :  
-    : "m" (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
-  )
-{
-  __asm__ __volatile__ (
-    "movq %0, %%mm5"  // %0
-    :  
-    : "m" (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
-  )
-{
-  __asm__ __volatile__ (
-    "movq %0, %%mm6"  // %0
-    :  
-    : "m" (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
-  )
-{
-  __asm__ __volatile__ (
-    "movq %0, %%mm7"  // %0
-    :  
-    : "m" (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
-  )
-{
-  UINT64  Data;
-  
-  __asm__ __volatile__ (
-    "rdtsc"
-    : "=A" (Data)
-    );
-  
-  return Data;  
-}
-
-
-/**
-  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
-  )
-{
-  UINT64  Data;
-  
-  __asm__ __volatile__ (
-    "rdpmc"
-    : "=A" (Data)
-    : "c"  (Index)
-    );
-  
-  return Data;  
-}
-
-
-
-
-/**
-  Executes a WBINVD instruction.
-
-  Executes a WBINVD instruction. This function is only available on IA-32 and
-  X64.
-
-**/
-VOID
-EFIAPI
-AsmWbinvd (
-  VOID
-  )
-{
-  __asm__ __volatile__ ("wbinvd":::"memory");
-}
-
-
-/**
-  Executes a INVD instruction.
-
-  Executes a INVD instruction. This function is only available on IA-32 and
-  X64.
-
-**/
-VOID
-EFIAPI
-AsmInvd (
-  VOID
-  )
-{
-  __asm__ __volatile__ ("invd":::"memory");
-    
-}
-
-
-/**
-  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
-  )
-{
-  __asm__ __volatile__ (
-    "clflush (%0)"
-    : "+a" (LinearAddress) 
-    : 
-    : "memory"
-    );
-    
-    return LinearAddress;
-}
-
-
+/** @file

+  GCC inline implementation of BaseLib processor specific functions.

+  

+  Copyright (c) 2006 - 2007, Intel Corporation<BR>

+  Portions copyright (c) 2008-2009 Apple Inc.<BR>

+  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.

+

+**/

+

+

+#include "BaseLibInternals.h"

+

+

+

+/**

+  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

+  )

+{

+  // This is a little bit of overkill and it is more about the compiler that it is

+  // actually processor syncronization. This is like the _ReadWriteBarrier 

+  // Microsft specific intrinsic

+  __asm__ __volatile__ ("":::"memory");

+}

+

+

+/**

+  Enables CPU interrupts.

+

+  Enables CPU interrupts.

+

+**/

+VOID

+EFIAPI

+EnableInterrupts (

+  VOID

+  )

+{

+  __asm__ __volatile__ ("sti"::: "memory");

+}

+

+

+/**

+  Disables CPU interrupts.

+

+  Disables CPU interrupts.

+

+**/

+VOID

+EFIAPI

+DisableInterrupts (

+  VOID

+  )

+{  

+  __asm__ __volatile__ ("cli"::: "memory");

+}

+

+

+

+

+/**

+  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

+  )

+{

+  __asm__ __volatile__ ("pause");

+}

+

+

+/**

+  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

+  )

+{

+  __asm__ __volatile__ ("int $3");

+}

+

+

+

+/**

+  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

+  )

+{

+  UINT64 Data;

+  

+  __asm__ __volatile__ (

+    "rdmsr"

+    : "=A" (Data)   // %0

+    : "c"  (Index)  // %1

+    );

+    

+  return Data;

+}

+

+/**

+  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

+  )

+{

+  __asm__ __volatile__ (

+    "wrmsr"

+    :

+    : "c" (Index),

+      "A" (Value)

+    );

+    

+  return Value;

+}

+

+

+

+/**

+  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

+  )

+{

+  UINTN Eflags;

+  

+  __asm__ __volatile__ (

+    "pushfl     \n\t"

+    "popl %0        "

+    : "=r" (Eflags)

+    );

+    

+  return Eflags;

+}

+

+

+

+/**

+  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

+  )

+{

+  UINTN   Data;

+  

+  __asm__ __volatile__ (

+    "movl %%cr0,%0" 

+    : "=a" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%cr2, %0" 

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%cr3, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%cr4, %0"

+    : "=a" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%cr0"

+    :

+    : "r" (Cr0)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%cr2"

+    :

+    : "r" (Cr2)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%cr3"

+    :

+    : "r" (Cr3)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%cr4"

+    :

+    : "r" (Cr4)

+    );

+  return 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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%dr0, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%dr1, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%dr2, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%dr3, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%dr4, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%dr5, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%dr6, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINTN Data;

+  

+  __asm__ __volatile__ (

+    "movl %%dr7, %0"

+    : "=r" (Data)

+    );

+  

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%dr0"

+    :

+    : "r" (Dr0)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%dr1"

+    :

+    : "r" (Dr1)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%dr2"

+    :

+    : "r" (Dr2)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%dr3"

+    :

+    : "r" (Dr3)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%dr4"

+    :

+    : "r" (Dr4)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%dr5"

+    :

+    : "r" (Dr5)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%dr6"

+    :

+    : "r" (Dr6)

+    );

+  return 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

+  )

+{

+  __asm__ __volatile__ (

+    "movl %0, %%dr7"

+    :

+    : "r" (Dr7)

+    );

+  return 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

+  )

+{

+  UINT16  Data;

+  

+  __asm__ __volatile__ (

+    "mov   %%cs, %0"

+    :"=a" (Data)

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT16  Data;

+  

+  __asm__ __volatile__ (

+    "mov  %%ds, %0"

+    :"=a" (Data)

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT16  Data;

+  

+  __asm__ __volatile__ (

+    "mov  %%es, %0"

+    :"=a" (Data)

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT16  Data;

+  

+  __asm__ __volatile__ (

+    "mov  %%fs, %0"

+    :"=a" (Data)

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT16  Data;

+  

+  __asm__ __volatile__ (

+    "mov  %%gs, %0"

+    :"=a" (Data)

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT16  Data;

+  

+  __asm__ __volatile__ (

+    "mov  %%ds, %0"

+    :"=a" (Data)

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT16  Data;

+  

+  __asm__ __volatile__ (

+    "str  %0"

+    : "=a" (Data)

+    );

+    

+  return Data;

+}

+

+

+/**

+  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.

+

+  @param  Gdtr  Pointer to a GDTR descriptor.

+

+**/

+VOID

+EFIAPI

+InternalX86ReadGdtr (

+  OUT     IA32_DESCRIPTOR           *Gdtr

+  )

+{

+  __asm__ __volatile__ (

+    "sgdt %0"

+    : "=m" (*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.

+

+  @param  Gdtr  Pointer to a GDTR descriptor.

+

+**/

+VOID

+EFIAPI

+InternalX86WriteGdtr (

+  IN      CONST IA32_DESCRIPTOR     *Gdtr

+  )

+{

+  __asm__ __volatile__ (

+    "lgdt %0"

+    :

+    : "m" (*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.

+

+  @param  Idtr  Pointer to a IDTR descriptor.

+

+**/

+VOID

+EFIAPI

+InternalX86ReadIdtr (

+  OUT     IA32_DESCRIPTOR           *Ldtr

+  )

+{

+  __asm__ __volatile__ (

+    "sldt  %0"

+    : "=m" (*Ldtr)

+    );

+}

+

+

+/**

+  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.

+

+  @param  Idtr  Pointer to a IDTR descriptor.

+

+**/

+VOID

+EFIAPI

+InternalX86WriteIdtr (

+  IN      CONST IA32_DESCRIPTOR     *Ldtr

+  )

+{

+  __asm__ __volatile__ (

+    "lidt %0"

+    :

+    : "m" (*Ldtr)

+    );

+}

+

+

+/**

+  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

+  )

+{

+  UINT16  Data;

+  

+  __asm__ __volatile__ (

+    "sldt  %0"

+    : "=g" (Data)   // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  __asm__ __volatile__ (

+    "lldtw  %0"

+    :

+    : "g" (Ldtr)   // %0

+    );

+}

+

+

+/**

+  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.

+

+  @param  Buffer  Pointer to a buffer to save the floating point/SSE/SSE2 context.

+

+**/

+VOID

+EFIAPI

+InternalX86FxSave (

+  OUT     IA32_FX_BUFFER            *Buffer

+  )

+{

+  __asm__ __volatile__ (

+    "fxsave %0"

+    :

+    : "m" (*Buffer)  // %0

+    );    

+}

+

+

+/**

+  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.

+

+  @param  Buffer  Pointer to a buffer to save the floating point/SSE/SSE2 context.

+

+**/

+VOID

+EFIAPI

+InternalX86FxRestore (

+  IN      CONST IA32_FX_BUFFER      *Buffer

+  )

+{

+  __asm__ __volatile__ (

+    "fxrstor %0"

+    :

+    : "m" (*Buffer)  // %0

+    );

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+

+  __asm__ __volatile__ (

+    "push %%eax          \n\t"

+    "push %%eax          \n\t"

+    "movq %%mm0,  (%%esp)\n\t"

+    "pop  %%eax          \n\t"

+    "pop  %%edx          \n\t"

+    : "=A"  (Data)       // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+

+  __asm__ __volatile__ (

+    "push %%eax          \n\t"

+    "push %%eax          \n\t"

+    "movq %%mm1,  (%%esp)\n\t"

+    "pop  %%eax          \n\t"

+    "pop  %%edx          \n\t"

+    : "=A"  (Data)       // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+

+  __asm__ __volatile__ (

+    "push %%eax          \n\t"

+    "push %%eax          \n\t"

+    "movq %%mm2,  (%%esp)\n\t"

+    "pop  %%eax          \n\t"

+    "pop  %%edx          \n\t"

+    : "=A"  (Data)       // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+

+  __asm__ __volatile__ (

+    "push %%eax          \n\t"

+    "push %%eax          \n\t"

+    "movq %%mm3,  (%%esp)\n\t"

+    "pop  %%eax          \n\t"

+    "pop  %%edx          \n\t"

+    : "=A"  (Data)       // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+

+  __asm__ __volatile__ (

+    "push %%eax          \n\t"

+    "push %%eax          \n\t"

+    "movq %%mm4,  (%%esp)\n\t"

+    "pop  %%eax          \n\t"

+    "pop  %%edx          \n\t"

+    : "=A"  (Data)       // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+

+  __asm__ __volatile__ (

+    "push %%eax          \n\t"

+    "push %%eax          \n\t"

+    "movq %%mm5,  (%%esp)\n\t"

+    "pop  %%eax          \n\t"

+    "pop  %%edx          \n\t"

+    : "=A"  (Data)       // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+

+  __asm__ __volatile__ (

+    "push %%eax          \n\t"

+    "push %%eax          \n\t"

+    "movq %%mm6,  (%%esp)\n\t"

+    "pop  %%eax          \n\t"

+    "pop  %%edx          \n\t"

+    : "=A"  (Data)       // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+

+  __asm__ __volatile__ (

+    "push %%eax          \n\t"

+    "push %%eax          \n\t"

+    "movq %%mm7,  (%%esp)\n\t"

+    "pop  %%eax          \n\t"

+    "pop  %%edx          \n\t"

+    : "=A"  (Data)       // %0

+    );

+    

+  return Data;

+}

+

+

+/**

+  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

+  )

+{

+  __asm__ __volatile__ (

+    "movq %0, %%mm0"  // %0

+    :  

+    : "m" (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

+  )

+{

+  __asm__ __volatile__ (

+    "movq %0, %%mm1"  // %0

+    :  

+    : "m" (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

+  )

+{

+  __asm__ __volatile__ (

+    "movq %0, %%mm2"  // %0

+    :  

+    : "m" (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

+  )

+{

+  __asm__ __volatile__ (

+    "movq %0, %%mm3"  // %0

+    :  

+    : "m" (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

+  )

+{

+  __asm__ __volatile__ (

+    "movq %0, %%mm4"  // %0

+    :  

+    : "m" (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

+  )

+{

+  __asm__ __volatile__ (

+    "movq %0, %%mm5"  // %0

+    :  

+    : "m" (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

+  )

+{

+  __asm__ __volatile__ (

+    "movq %0, %%mm6"  // %0

+    :  

+    : "m" (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

+  )

+{

+  __asm__ __volatile__ (

+    "movq %0, %%mm7"  // %0

+    :  

+    : "m" (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

+  )

+{

+  UINT64  Data;

+  

+  __asm__ __volatile__ (

+    "rdtsc"

+    : "=A" (Data)

+    );

+  

+  return Data;  

+}

+

+

+/**

+  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

+  )

+{

+  UINT64  Data;

+  

+  __asm__ __volatile__ (

+    "rdpmc"

+    : "=A" (Data)

+    : "c"  (Index)

+    );

+  

+  return Data;  

+}

+

+

+

+

+/**

+  Executes a WBINVD instruction.

+

+  Executes a WBINVD instruction. This function is only available on IA-32 and

+  X64.

+

+**/

+VOID

+EFIAPI

+AsmWbinvd (

+  VOID

+  )

+{

+  __asm__ __volatile__ ("wbinvd":::"memory");

+}

+

+

+/**

+  Executes a INVD instruction.

+

+  Executes a INVD instruction. This function is only available on IA-32 and

+  X64.

+

+**/

+VOID

+EFIAPI

+AsmInvd (

+  VOID

+  )

+{

+  __asm__ __volatile__ ("invd":::"memory");

+    

+}

+

+

+/**

+  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

+  )

+{

+  __asm__ __volatile__ (

+    "clflush (%0)"

+    : "+a" (LinearAddress) 

+    : 

+    : "memory"

+    );

+    

+    return LinearAddress;

+}

+

+