1 files changed, 0 insertions, 82 deletions
diff --git a/MdePkg/Library/BaseLib/X64/DisablePaging64.S b/MdePkg/Library/BaseLib/X64/DisablePaging64.S
deleted file mode 100644
index 220a59127b..0000000000
--- a/MdePkg/Library/BaseLib/X64/DisablePaging64.S
+++ /dev/null
@@ -1,82 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
-# 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      UINT32                    EntryPoint,
-#   IN      UINT32                    Context1,  OPTIONAL
-#   IN      UINT32                    Context2,  OPTIONAL
-#   IN      UINT32                    NewStack
-#   );
-#------------------------------------------------------------------------------
-
-ASM_GLOBAL ASM_PFX(InternalX86DisablePaging64)
-ASM_PFX(InternalX86DisablePaging64):
-    cli
-    lea    L1(%rip), %rsi                 # rsi <- The start address of transition code
-    mov    0x28(%rsp), %edi               # rdi <- New stack
-    lea    _mTransitionEnd(%rip), %rax    # rax <- end of transition code
-    sub    %rsi, %rax                     # rax <- The size of transition piece code
-    add    $4, %rax                       # round rax up to the next 4 byte boundary
-    and    $0xfc, %al
-    sub    %rax, %rdi                     # rdi <- use stack to hold transition code
-    mov    %edi, %r10d                    # r10 <- The start address of transicition code below 4G
-    push   %rcx                           # save rcx to stack
-    mov    %rax, %rcx                     # rcx <- The size of transition piece code
-    rep
-    movsb                                 # copy transition code to (new stack - 64byte) below 4G
-    pop    %rcx                           # restore rcx
-
-    mov    %r8d, %esi
-    mov    %r9d, %edi
-    mov    %r10d, %eax
-    sub    $4, %eax
-    push   %rcx                           # push Cs to stack
-    push   %r10                           # push address of transition code on stack
-    .byte  0x48, 0xcb                     # retq: Use far return to load CS register from stack
-                                          # (Use raw byte code since some GNU assemblers generates incorrect code for "retq")
-L1:
-    mov    %eax,%esp                      # set up new stack
-    mov    %cr0,%rax
-    btr    $0x1f,%eax                     # clear CR0.PG
-    mov    %rax,%cr0                      # disable paging
-
-    mov    %edx,%ebx                      # save EntryPoint to ebx, for rdmsr will overwrite edx
-    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  *%rbx                          # transfer control to EntryPoint
-    jmp    .                              # no one should get here
-
-_mTransitionEnd :