X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseLib%2FX64%2FDisablePaging64.S;h=220a59127b84d9c2606c91b664bbe2ab307fc137;hp=676e9e175a7fae5aa5f18b867f6fb5ba8bd73c64;hb=9095d37b8fe5bfc3d02adad6ba7fd7359ebc0107;hpb=d1102dba7210b95e41d06c2338a22ba6af248645

diff --git a/MdePkg/Library/BaseLib/X64/DisablePaging64.S b/MdePkg/Library/BaseLib/X64/DisablePaging64.S
index 676e9e175a..220a59127b 100644
--- a/MdePkg/Library/BaseLib/X64/DisablePaging64.S
+++ b/MdePkg/Library/BaseLib/X64/DisablePaging64.S
@@ -1,6 +1,6 @@
 #------------------------------------------------------------------------------
 #
-# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
+# 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
@@ -21,7 +21,7 @@
 #
 #------------------------------------------------------------------------------
 
-    
+
 
 #------------------------------------------------------------------------------
 # VOID
@@ -37,29 +37,29 @@
 
 ASM_GLOBAL ASM_PFX(InternalX86DisablePaging64)
 ASM_PFX(InternalX86DisablePaging64):
-    cli    
+    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 
+    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    %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  
+    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")  
+                                          # (Use raw byte code since some GNU assemblers generates incorrect code for "retq")
 L1:
     mov    %eax,%esp                      # set up new stack
     mov    %cr0,%rax
@@ -68,9 +68,9 @@ L1:
 
     mov    %edx,%ebx                      # save EntryPoint to ebx, for rdmsr will overwrite edx
     mov    $0xc0000080,%ecx
-    rdmsr  
+    rdmsr
     and    $0xfe,%ah                      # clear LME
-    wrmsr  
+    wrmsr
     mov    %cr4,%rax
     and    $0xdf,%al                      # clear PAE
     mov    %rax,%cr4