+++ /dev/null
-;------------------------------------------------------------------------------\r
-;\r
-; Copyright (c) 2014 - 2015, 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
-; Abstract:\r
-;\r
-; Switch the stack from temporary memory to permenent memory.\r
-;\r
-;------------------------------------------------------------------------------\r
-\r
- .586p\r
- .model flat,C\r
- .code\r
-\r
-;------------------------------------------------------------------------------\r
-; UINT32\r
-; EFIAPI\r
-; Pei2LoaderSwitchStack (\r
-; VOID\r
-; )\r
-;------------------------------------------------------------------------------\r
-EXTERNDEF C MeasurePoint:PROC\r
-Pei2LoaderSwitchStack PROC C PUBLIC\r
- xor eax, eax\r
- jmp FspSwitchStack\r
-Pei2LoaderSwitchStack ENDP\r
-\r
-;------------------------------------------------------------------------------\r
-; UINT32\r
-; EFIAPI\r
-; Loader2PeiSwitchStack (\r
-; VOID\r
-; )\r
-;------------------------------------------------------------------------------\r
-Loader2PeiSwitchStack PROC C PUBLIC\r
- jmp FspSwitchStack\r
-Loader2PeiSwitchStack ENDP\r
-\r
-;------------------------------------------------------------------------------\r
-; UINT32\r
-; EFIAPI\r
-; FspSwitchStack (\r
-; VOID\r
-; )\r
-;------------------------------------------------------------------------------\r
-EXTERNDEF C SwapStack:PROC\r
-FspSwitchStack PROC C PUBLIC\r
- ; Save current contexts\r
- push eax\r
- pushfd\r
- cli\r
- pushad\r
- sub esp, 8\r
- sidt fword ptr [esp]\r
-\r
- ; Load new stack\r
- push esp\r
- call SwapStack\r
- mov esp, eax\r
-\r
- ; Restore previous contexts\r
- lidt fword ptr [esp]\r
- add esp, 8\r
- popad\r
- popfd\r
- add esp, 4\r
- ret\r
-FspSwitchStack ENDP\r
-\r
- END\r
+++ /dev/null
-#------------------------------------------------------------------------------\r
-#\r
-# Copyright (c) 2014 - 2015, 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
-# Abstract:\r
-#\r
-# Switch the stack from temporary memory to permenent memory.\r
-#\r
-#------------------------------------------------------------------------------\r
-\r
-\r
-#------------------------------------------------------------------------------\r
-# UINT32\r
-# EFIAPI\r
-# Pei2LoaderSwitchStack (\r
-# VOID\r
-# )\r
-#------------------------------------------------------------------------------\r
-ASM_GLOBAL ASM_PFX(Pei2LoaderSwitchStack)\r
-ASM_PFX(Pei2LoaderSwitchStack):\r
- xorl %eax, %eax\r
- jmp ASM_PFX(FspSwitchStack)\r
-\r
-#------------------------------------------------------------------------------\r
-# UINT32\r
-# EFIAPI\r
-# Loader2PeiSwitchStack (\r
-# VOID\r
-# )\r
-#------------------------------------------------------------------------------\r
-ASM_GLOBAL ASM_PFX(Loader2PeiSwitchStack)\r
-ASM_PFX(Loader2PeiSwitchStack):\r
- jmp ASM_PFX(FspSwitchStack)\r
-\r
-#------------------------------------------------------------------------------\r
-# UINT32\r
-# EFIAPI\r
-# FspSwitchStack (\r
-# VOID\r
-# )\r
-#------------------------------------------------------------------------------\r
-ASM_GLOBAL ASM_PFX(FspSwitchStack)\r
-ASM_PFX(FspSwitchStack):\r
- #\r
- #Save current contexts\r
- #\r
- push %eax\r
- pushf\r
- cli\r
- pusha\r
- sub $0x08, %esp\r
- sidt (%esp)\r
-\r
- #\r
- # Load new stack\r
- #\r
- push %esp\r
- call ASM_PFX(SwapStack)\r
- movl %eax, %esp\r
-\r
- #\r
- # Restore previous contexts\r
- #\r
- lidt (%esp)\r
- add $0x08,%esp\r
- popa\r
- popf\r
- add $0x04,%esp\r
- ret\r
-\r
-\r