EmulatorPkg: Fix Visual Studio build for IA32 & X64

This code is untested since there is currently no 'host' component
for Win32/Win64.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13633 6f19259b-4bc3-4df7-8a09-765794883524

3 files changed, 173 insertions, 0 deletions

diff --git a/EmulatorPkg/Sec/Ia32/SwitchRam.asm b/EmulatorPkg/Sec/Ia32/SwitchRam.asm
new file mode 100644
index 0000000000..a2e1f3e910
--- /dev/null
+++ b/EmulatorPkg/Sec/Ia32/SwitchRam.asm
@@ -0,0 +1,94 @@
+;------------------------------------------------------------------------------

+;

+; Copyright (c) 2007 - 2012, 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:

+;

+;   Stack.asm

+;

+; Abstract:

+;

+;   Switch the stack from temporary memory to permenent memory.

+;

+;------------------------------------------------------------------------------

+

+    .586p

+    .model  flat,C

+    .code

+    

+;------------------------------------------------------------------------------

+; VOID

+; EFIAPI

+; SecSwitchStack (

+;   UINT32   TemporaryMemoryBase,

+;   UINT32   PermenentMemoryBase

+;   );

+;------------------------------------------------------------------------------    

+SecSwitchStack   PROC

+    ;

+    ; Save three register: eax, ebx, ecx

+    ;

+    push  eax

+    push  ebx

+    push  ecx

+    push  edx

+    

+    ;

+    ; !!CAUTION!! this function address's is pushed into stack after

+    ; migration of whole temporary memory, so need save it to permenent

+    ; memory at first!

+    ;

+    

+    mov   ebx, [esp + 20]          ; Save the first parameter

+    mov   ecx, [esp + 24]          ; Save the second parameter

+    

+    ;

+    ; Save this function's return address into permenent memory at first.

+    ; Then, Fixup the esp point to permenent memory

+    ;

+    mov   eax, esp

+    sub   eax, ebx

+    add   eax, ecx

+    mov   edx, dword ptr [esp]         ; copy pushed register's value to permenent memory

+    mov   dword ptr [eax], edx    

+    mov   edx, dword ptr [esp + 4]

+    mov   dword ptr [eax + 4], edx    

+    mov   edx, dword ptr [esp + 8]

+    mov   dword ptr [eax + 8], edx    

+    mov   edx, dword ptr [esp + 12]

+    mov   dword ptr [eax + 12], edx    

+    mov   edx, dword ptr [esp + 16]    ; Update this function's return address into permenent memory

+    mov   dword ptr [eax + 16], edx    

+    mov   esp, eax                     ; From now, esp is pointed to permenent memory

+        

+    ;

+    ; Fixup the ebp point to permenent memory

+    ;

+    mov   eax, ebp

+    sub   eax, ebx

+    add   eax, ecx

+    mov   ebp, eax                ; From now, ebp is pointed to permenent memory

+    

+    ;

+    ; Fixup callee's ebp point for PeiDispatch

+    ;

+    mov   eax, dword ptr [ebp]

+    sub   eax, ebx

+    add   eax, ecx

+    mov   dword ptr [ebp], eax    ; From now, Temporary's PPI caller's stack is in permenent memory

+    

+    pop   edx

+    pop   ecx

+    pop   ebx

+    pop   eax

+    ret

+SecSwitchStack   ENDP

+

+    END

diff --git a/EmulatorPkg/Sec/Sec.inf b/EmulatorPkg/Sec/Sec.inf
index 484e7a0a93..d253fd724e 100644
--- a/EmulatorPkg/Sec/Sec.inf
+++ b/EmulatorPkg/Sec/Sec.inf
@@ -3,6 +3,7 @@
 #

 # Main executable file of Unix Emulator that loads PEI core after initialization finished.

 # Portions copyright (c) 2011, Apple Inc. All rights reserved.<BR>

+# Copyright (c) 2012, 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

@@ -26,10 +27,12 @@
   Sec.c

 

 [Sources.X64]

+  X64/SwitchRam.asm

   X64/SwitchRam.S

 

 [Sources.IA32]

   Ia32/TempRam.c

+  Ia32/SwitchRam.asm

   Ia32/SwitchRam.S

 

 [Packages]

diff --git a/EmulatorPkg/Sec/X64/SwitchRam.asm b/EmulatorPkg/Sec/X64/SwitchRam.asm
new file mode 100644
index 0000000000..d1a7b943fd
--- /dev/null
+++ b/EmulatorPkg/Sec/X64/SwitchRam.asm
@@ -0,0 +1,76 @@
+;------------------------------------------------------------------------------

+;

+; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>

+; Portitions copyright (c) 2011, Apple Inc. 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.

+;

+;------------------------------------------------------------------------------

+

+EXTERN CopyMem:PROC

+EXTERN ZeroMem:PROC

+

+    .code

+

+;------------------------------------------------------------------------------

+;  EFI_STATUS

+;  EFIAPI

+;  SecTemporaryRamSupport (

+;    IN CONST EFI_PEI_SERVICES   **PeiServices,         // %rcx

+;    IN EFI_PHYSICAL_ADDRESS     TemporaryMemoryBase,   // %rdx

+;    IN EFI_PHYSICAL_ADDRESS     PermanentMemoryBase,   // %r8

+;    IN UINTN                    CopySize               // %r9

+;    )

+;------------------------------------------------------------------------------

+SecTemporaryRamSupport PROC

+  ; Adjust callers %rbp to account for stack move

+  sub     rbp, rdx      ; Calc offset of %rbp in Temp Memory

+  add     rbp, r8       ; add in permanent base to offset

+

+  push    rbp           ; stack frame is for the debugger

+  mov     rbp, rsp

+

+  push    rdx           ; Save TemporaryMemoryBase

+  push    r8            ; Save PermanentMemoryBase

+  push    r9            ; Save CopySize

+

+  ;

+  ; Copy all of temp RAM to permanent memory, including stack

+  ;

+  ; CopyMem (PermanentMemoryBase, TemporaryMemoryBase, CopySize);

+  ;          %rcx,                %rdx,                %r8

+  mov     rcx, r8       ; Shift arguments

+  mov     r8, r9

+  sub     rsp, 028h     ; Allocate register spill area & 16-byte align stack

+  call    CopyMem

+  ; Temp mem stack now copied to permanent location. %esp still in temp memory

+  add     rsp, 028h

+

+  pop     r9            ; CopySize (old stack)

+  pop     r8            ; PermanentMemoryBase (old stack)

+  pop     rdx           ; TemporaryMemoryBase (old stack)

+

+  mov     rcx, rsp      ; Move to new stack

+  sub     rcx, rdx      ; Calc offset of stack in Temp Memory

+  add     rcx, r8       ; Calc PermanentMemoryBase address

+  mov     rsp, rcx      ; Update stack

+  ; Stack now points to permanent memory

+

+  ; ZeroMem (TemporaryMemoryBase /* rcx */, CopySize /* rdx */);

+  mov     rcx, rdx

+  mov     rdx, r9

+  sub     rsp, 028h     ; Allocate register spill area & 16-byte align stack

+  call    ZeroMem

+  add     rsp, 028h

+

+  ; This data comes off the NEW stack

+  pop     rbp

+  ret

+SecTemporaryRamSupport ENDP

+

+  END