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Diffstat (limited to 'MdePkg/Library/BaseLib/X64/DisablePaging64.S')
-rw-r--r--MdePkg/Library/BaseLib/X64/DisablePaging64.S118
1 files changed, 59 insertions, 59 deletions
diff --git a/MdePkg/Library/BaseLib/X64/DisablePaging64.S b/MdePkg/Library/BaseLib/X64/DisablePaging64.S
index e4f77970ed..a55059e3be 100644
--- a/MdePkg/Library/BaseLib/X64/DisablePaging64.S
+++ b/MdePkg/Library/BaseLib/X64/DisablePaging64.S
@@ -1,65 +1,65 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2008, Intel Corporation
-# All rights reserved. This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
-# which accompanies this distribution. The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-# Module Name:
-#
-# DisablePaging64.S
-#
-# Abstract:
-#
-# AsmDisablePaging64 function
-#
-# Notes:
-#
-#------------------------------------------------------------------------------
-
-
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# InternalX86DisablePaging64 (
-# IN UINT16 Cs,
-# IN UINT64 EntryPoint,
-# IN UINT64 Context1, OPTIONAL
-# IN UINT32 Context2, OPTIONAL
-# IN UINT64 NewStack
-# );
-#------------------------------------------------------------------------------
-
-.global ASM_PFX(InternalX86DisablePaging64)
-ASM_PFX(InternalX86DisablePaging64):
- cli
- shl $0x20,%rcx # rcx[32..47] <- Cs
- lea L1, %eax
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2008, Intel Corporation
+# All rights reserved. This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+# Module Name:
+#
+# DisablePaging64.S
+#
+# Abstract:
+#
+# AsmDisablePaging64 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+
+#------------------------------------------------------------------------------
+# VOID
+# EFIAPI
+# InternalX86DisablePaging64 (
+# IN UINT16 Cs,
+# IN UINT64 EntryPoint,
+# IN UINT64 Context1, OPTIONAL
+# IN UINT32 Context2, OPTIONAL
+# IN UINT64 NewStack
+# );
+#------------------------------------------------------------------------------
+
+.global ASM_PFX(InternalX86DisablePaging64)
+ASM_PFX(InternalX86DisablePaging64):
+ cli
+ shl $0x20,%rcx # rcx[32..47] <- Cs
+ lea L1, %eax
mov %r8d, %esi
or %rax, %rcx # rcx[0..47] <- Cs:@F
mov %r9d, %edi
mov 0x28(%rsp), %eax # eax <- New Stack
push %rcx
ret # switch to compatibility mode
-L1:
- mov %eax,%esp # set up new stack
- mov %cr0,%rax
- btr $0x1f,%eax
- mov %rax,%cr0 # disable paging
- mov $0xc0000080,%ecx
- rdmsr
- and $0xfe,%ah # clear LME
- wrmsr
- mov %cr4,%rax
- and $0xdf,%al # clear PAE
- mov %rax,%cr4
- push %rdi # push Context2
- push %rsi # push Context1
- callq *%rdx # transfer control to EntryPoint
- jmp . # no one should get here
-
+L1:
+ mov %eax,%esp # set up new stack
+ mov %cr0,%rax
+ btr $0x1f,%eax
+ mov %rax,%cr0 # disable paging
+ mov $0xc0000080,%ecx
+ rdmsr
+ and $0xfe,%ah # clear LME
+ wrmsr
+ mov %cr4,%rax
+ and $0xdf,%al # clear PAE
+ mov %rax,%cr4
+ push %rdi # push Context2
+ push %rsi # push Context1
+ callq *%rdx # transfer control to EntryPoint
+ jmp . # no one should get here
+