ArmPlatformPkg: Change the memory model for the ARM Platform components

In the former memory model, the UEFI firmware was expected to be located
at the top of the system memory. Stacks & Pi memory regions were set below
the firmware.
On some platform, the UEFI firmware could be shadowed by the ROM firmware
(case of the BeagleBoard) and in some cases the firmware is copied at the
beginning of the system memory.

With this new memory model, stack and Pi/DXE memory regions are set at the
top of the system memory wherever the UEFI firmware is located in the memory
map.
Because DXE core does not support shadowed firmwares, the system memory covered
by the UEFI firmware is marked as 'Non Present' to avoid to be overlapped by
DXE allocations.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11992 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 101 insertions, 101 deletions

diff --git a/ArmPlatformPkg/PrePi/Exception.S b/ArmPlatformPkg/PrePi/Exception.S
index b07f0e8d00..bd59682237 100755
--- a/ArmPlatformPkg/PrePi/Exception.S
+++ b/ArmPlatformPkg/PrePi/Exception.S
@@ -1,101 +1,101 @@
-//
-//  Copyright (c) 2011, ARM Limited. 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.             
-#
-#
-
-#include <AsmMacroIoLib.h>
-#include <Base.h>
-#include <AutoGen.h>
-
-#start of the code section
-.text
-.align 5
-
-# IMPORT
-GCC_ASM_IMPORT(PrePiCommonExceptionEntry)
-
-# EXPORT
-GCC_ASM_EXPORT(PrePiVectorTable)
-
-//============================================================
-//Default Exception Handlers
-//============================================================
-  
-ASM_PFX(PrePiVectorTable):
-  b _DefaultResetHandler
-  b _DefaultUndefined
-  b _DefaultSWI
-  b _DefaultPrefetchAbort
-  b _DefaultDataAbort
-  b _DefaultReserved
-  b _DefaultIrq
-  b _DefaultFiq
-
-//
-// Default Exception handlers: There is no plan to return from any of these exceptions.
-// No context saving at all.
-//
-_DefaultResetHandler:
-  mov  r1, lr
-  # Switch to SVC for common stack
-  cps  #0x13
-  mov  r0, #0
-   blx   ASM_PFX(PrePiCommonExceptionEntry)
-
-_DefaultUndefined:
-  sub  r1, LR, #4
-  # Switch to SVC for common stack
-  cps  #0x13
-  mov  r0, #1
-   blx   ASM_PFX(PrePiCommonExceptionEntry)
-
-_DefaultSWI:
-  sub  r1, LR, #4
-  # Switch to SVC for common stack
-  cps  #0x13
-  mov  r0, #2
-   blx   ASM_PFX(PrePiCommonExceptionEntry)
-
-_DefaultPrefetchAbort:
-  sub  r1, LR, #4
-  # Switch to SVC for common stack
-  cps  #0x13
-  mov  r0, #3
-   blx   ASM_PFX(PrePiCommonExceptionEntry)
-
-_DefaultDataAbort:
-  sub  r1, LR, #8
-  # Switch to SVC for common stack
-  cps  #0x13
-  mov  r0, #4
-   blx   ASM_PFX(PrePiCommonExceptionEntry)
-
-_DefaultReserved:
-  mov  r1, lr
-  # Switch to SVC for common stack
-  cps  #0x13
-  mov  r0, #5
-   blx   ASM_PFX(PrePiCommonExceptionEntry)
-
-_DefaultIrq:
-  sub  r1, LR, #4
-  # Switch to SVC for common stack
-  cps  #0x13
-  mov  r0, #6
-   blx   ASM_PFX(PrePiCommonExceptionEntry)
-
-_DefaultFiq:
-  sub  r1, LR, #4
-  # Switch to SVC for common stack
-  cps  #0x13
-  mov  r0, #7
-   blx   ASM_PFX(PrePiCommonExceptionEntry)
-
+//

+//  Copyright (c) 2011, ARM Limited. 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.             

+#

+#

+

+#include <AsmMacroIoLib.h>

+#include <Base.h>

+#include <AutoGen.h>

+

+#start of the code section

+.text

+.align 5

+

+# IMPORT

+GCC_ASM_IMPORT(PrePiCommonExceptionEntry)

+

+# EXPORT

+GCC_ASM_EXPORT(PrePiVectorTable)

+

+//============================================================

+//Default Exception Handlers

+//============================================================

+  

+ASM_PFX(PrePiVectorTable):

+  b _DefaultResetHandler

+  b _DefaultUndefined

+  b _DefaultSWI

+  b _DefaultPrefetchAbort

+  b _DefaultDataAbort

+  b _DefaultReserved

+  b _DefaultIrq

+  b _DefaultFiq

+

+//

+// Default Exception handlers: There is no plan to return from any of these exceptions.

+// No context saving at all.

+//

+_DefaultResetHandler:

+  mov  r1, lr

+  # Switch to SVC for common stack

+  cps  #0x13

+  mov  r0, #0

+  blx   ASM_PFX(PrePiCommonExceptionEntry)

+

+_DefaultUndefined:

+  sub  r1, LR, #4

+  # Switch to SVC for common stack

+  cps  #0x13

+  mov  r0, #1

+  blx   ASM_PFX(PrePiCommonExceptionEntry)

+

+_DefaultSWI:

+  sub  r1, LR, #4

+  # Switch to SVC for common stack

+  cps  #0x13

+  mov  r0, #2

+  blx   ASM_PFX(PrePiCommonExceptionEntry)

+

+_DefaultPrefetchAbort:

+  sub  r1, LR, #4

+  # Switch to SVC for common stack

+  cps  #0x13

+  mov  r0, #3

+  blx   ASM_PFX(PrePiCommonExceptionEntry)

+

+_DefaultDataAbort:

+  sub  r1, LR, #8

+  # Switch to SVC for common stack

+  cps  #0x13

+  mov  r0, #4

+  blx   ASM_PFX(PrePiCommonExceptionEntry)

+

+_DefaultReserved:

+  mov  r1, lr

+  # Switch to SVC for common stack

+  cps  #0x13

+  mov  r0, #5

+  blx   ASM_PFX(PrePiCommonExceptionEntry)

+

+_DefaultIrq:

+  sub  r1, LR, #4

+  # Switch to SVC for common stack

+  cps  #0x13

+  mov  r0, #6

+  blx   ASM_PFX(PrePiCommonExceptionEntry)

+

+_DefaultFiq:

+  sub  r1, LR, #4

+  # Switch to SVC for common stack

+  cps  #0x13

+  mov  r0, #7

+  blx   ASM_PFX(PrePiCommonExceptionEntry)

+