diff options
Diffstat (limited to 'OldMdePkg/Library/BaseLib/X64/EnablePaging64.asm')
-rw-r--r-- | OldMdePkg/Library/BaseLib/X64/EnablePaging64.asm | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/OldMdePkg/Library/BaseLib/X64/EnablePaging64.asm b/OldMdePkg/Library/BaseLib/X64/EnablePaging64.asm deleted file mode 100644 index c54843008a..0000000000 --- a/OldMdePkg/Library/BaseLib/X64/EnablePaging64.asm +++ /dev/null @@ -1,64 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006, 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:
-;
-; EnablePaging64.Asm
-;
-; Abstract:
-;
-; AsmEnablePaging64 function
-;
-; Notes:
-;
-;------------------------------------------------------------------------------
-
- .code
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; InternalX86EnablePaging64 (
-; IN UINT16 Cs,
-; IN UINT64 EntryPoint,
-; IN UINT64 Context1, OPTIONAL
-; IN UINT64 Context2, OPTIONAL
-; IN UINT64 NewStack
-; );
-;------------------------------------------------------------------------------
-InternalX86EnablePaging64 PROC
- cli
- pop rax ; skip the return address
- call @Base
-@Base:
- add dword ptr [rsp], @F - @Base ; offset for far retf, seg is the 1st arg
- mov rax, cr4 ; mov eax, cr4
- or al, (1 SHL 5)
- mov cr4, rax ; enable PAE
- mov ecx, 0c0000080h
- rdmsr
- or ah, 1 ; set LME
- wrmsr
- mov rax, cr0 ; mov eax, cr0
- bts eax, 31
- mov cr0, rax ; enable paging
- retf
-@@: ; long mode starts here
- mov rbx, [esp]
- mov rcx, [esp + 8]
- mov rdx, [esp + 10h]
- mov rsp, [esp + 18h]
- add rsp, -20h
- call rbx
- hlt ; halt processor if EntryPoint() returned
-InternalX86EnablePaging64 ENDP
-
- END
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