UnixPkg: Remove UnixPkg files (It is replaced by EmulatorPkg)

[mirror_edk2.git] / UnixPkg / Library / UnixBaseLib / X64 / DisablePaging64.asm

diff --git a/UnixPkg/Library/UnixBaseLib/X64/DisablePaging64.asm b/UnixPkg/Library/UnixBaseLib/X64/DisablePaging64.asm
deleted file mode 100644 (file)
index 32dcd5a..0000000
--- a/UnixPkg/Library/UnixBaseLib/X64/DisablePaging64.asm
+++ /dev/null
@@ -1,84 +0,0 @@
-;------------------------------------------------------------------------------\r
-;\r
-; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
-; This program and the accompanying materials\r
-; are licensed and made available under the terms and conditions of the BSD License\r
-; which accompanies this distribution.  The full text of the license may be found at\r
-; http://opensource.org/licenses/bsd-license.php.\r
-;\r
-; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-;\r
-; Module Name:\r
-;\r
-;   DisablePaging64.Asm\r
-;\r
-; Abstract:\r
-;\r
-;   AsmDisablePaging64 function\r
-;\r
-; Notes:\r
-;\r
-;------------------------------------------------------------------------------\r
-\r
-    .code\r
-\r
-;------------------------------------------------------------------------------\r
-; VOID\r
-; EFIAPI\r
-; InternalX86DisablePaging64 (\r
-;   IN      UINT16                    Cs,\r
-;   IN      UINT32                    EntryPoint,\r
-;   IN      UINT32                    Context1,  OPTIONAL\r
-;   IN      UINT32                    Context2,  OPTIONAL\r
-;   IN      UINT32                    NewStack\r
-;   );\r
-;------------------------------------------------------------------------------\r
-InternalX86DisablePaging64    PROC\r
-    cli\r
-    lea     rsi, @F                     ; rsi <- The start address of transition code\r
-    mov     edi, [rsp + 28h]            ; rdi <- New stack\r
-    lea     rax, mTransitionEnd         ; rax <- end of transition code\r
-    sub     rax, rsi                    ; rax <- The size of transition piece code \r
-    add     rax, 4                      ; Round RAX up to the next 4 byte boundary\r
-    and     al, 0fch\r
-    sub     rdi, rax                    ; rdi <- Use stack to hold transition code\r
-    mov     r10d, edi                   ; r10 <- The start address of transicition code below 4G\r
-    push    rcx                         ; save rcx to stack\r
-    mov     rcx, rax                    ; rcx <- The size of transition piece code\r
-    rep     movsb                       ; copy transition code to top of new stack which must be below 4GB\r
-    pop     rcx                         ; restore rcx\r
-    \r
-    mov     esi, r8d\r
-    mov     edi, r9d\r
-    mov     eax, r10d                   ; eax <- start of the transition code on the stack\r
-    sub     eax, 4                      ; eax <- One slot below transition code on the stack\r
-    push    rcx                         ; push Cs to stack\r
-    push    r10                         ; push address of tansition code on stack\r
-    DB      48h                         ; prefix to composite "retq" with next "retf"\r
-    retf                                ; Use far return to load CS register from stack\r
-\r
-; Start of transition code\r
-@@:\r
-    mov     esp, eax                    ; set up new stack\r
-    mov     rax, cr0\r
-    btr     eax, 31                     ; Clear CR0.PG\r
-    mov     cr0, rax                    ; disable paging and caches\r
-    \r
-    mov     ebx, edx                    ; save EntryPoint to rbx, for rdmsr will overwrite rdx\r
-    mov     ecx, 0c0000080h\r
-    rdmsr\r
-    and     ah, NOT 1                   ; clear LME\r
-    wrmsr\r
-    mov     rax, cr4\r
-    and     al, NOT (1 SHL 5)           ; clear PAE\r
-    mov     cr4, rax\r
-    push    rdi                         ; push Context2\r
-    push    rsi                         ; push Context1\r
-    call    rbx                         ; transfer control to EntryPoint\r
-    hlt                                 ; no one should get here\r
-InternalX86DisablePaging64    ENDP\r
-\r
-mTransitionEnd LABEL    BYTE\r
-\r
-    END\r