X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=EdkCompatibilityPkg%2FFoundation%2FLibrary%2FPei%2FPeiLib%2FIa32%2FProcessorAsms.S;h=2766986c6a3e3869867ae3f96d9e95d5c76fc0fc;hp=01eec19f39b6a90567f1e2326649e97a8585d4d4;hb=e8de46808a7d2426116de79cdf2aeab43d5a5537;hpb=fbf926add92ee7c528aed264b0b71442b2caef04 diff --git a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ia32/ProcessorAsms.S b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ia32/ProcessorAsms.S index 01eec19f39..2766986c6a 100644 --- a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ia32/ProcessorAsms.S +++ b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ia32/ProcessorAsms.S @@ -1,207 +1,207 @@ -# -# Copyright (c) 2004, Intel Corporation -# 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. -# -# Module Name: -# -# ProcessorAsms.Asm -# -# -# -#include "EfiBind.h" -#------------------------------------------------------------------------------ - - .686P: - .MMX: - #.MODEL SMALL - .CODE: -#------------------------------------------------------------------------------ - -.globl ASM_PFX(TransferControlSetJump) -.globl ASM_PFX(TransferControlLongJump) -.globl ASM_PFX(SwitchStacks) -.globl ASM_PFX(SwitchIplStacks) - -.equ EFI_SUCCESS, 0 -.equ EFI_WARN_RETURN_FROM_LONG_JUMP, 5 - -# -# typedef struct { -# UINT32 ebx; -# UINT32 esi; -# UINT32 edi; -# UINT32 ebp; -# UINT32 esp; -# UINT32 eip; -#} EFI_JUMP_BUFFER; -# - -#typedef -#EFI_STATUS -#(EFIAPI *EFI_PEI_TRANSFER_CONTROL_SET_JUMP) ( -# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, -# OUT EFI_JUMP_BUFFER *Context -# ); -# -#Routine Description: -# -# This routine implements the IA32 variant of the SetJump call. Its -# responsibility is to store system state information for a possible -# subsequent LongJump. -# -#Arguments: -# -# Pointer to CPU context save buffer. -# -#Returns: -# -# EFI_SUCCESS -# -ASM_PFX(TransferControlSetJump): - push %ebp - mov %esp,%ebp - mov 0x8(%ebp),%eax - mov 0xc(%ebp),%ecx - mov %ebx,(%ecx) - mov %esi,0x4(%ecx) - mov %edi,0x8(%ecx) - mov 0x0(%ebp),%eax - mov %eax,0xc(%ecx) - lea 0x4(%ebp),%eax - mov %eax,0x10(%ecx) - mov 0x4(%ebp),%eax - mov %eax,0x14(%ecx) - mov $0x0,%eax - leave - ret - -#typedef -#EFI_STATUS -#(EFIAPI *EFI_PEI_TRANSFER_CONTROL_LONG_JUMP) ( -# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, -# IN EFI_JUMP_BUFFER *Context -# ); -# -# Routine Description: -# -# This routine implements the IA32 variant of the LongJump call. Its -# responsibility is restore the system state to the Context Buffer and -# pass control back. -# -# Arguments: -# -# Pointer to CPU context save buffer. -# -# Returns: -# -# EFI_WARN_RETURN_FROM_LONG_JUMP -# - -ASM_PFX(TransferControlLongJump): - push %ebp - mov %esp,%ebp - push %ebx - push %esi - push %edi - mov 0x8(%ebp),%eax - mov $0x5,%eax - mov 0xc(%ebp),%ecx - mov (%ecx),%ebx - mov 0x4(%ecx),%esi - mov 0x8(%ecx),%edi - mov 0xc(%ecx),%ebp - mov 0x10(%ecx),%esp - add $0x4,%esp - jmp *0x14(%ecx) - mov $0x5,%eax - pop %edi - pop %esi - pop %ebx - leave - ret - -# -# Routine Description: -# This allows the caller to switch the stack and goes to the new entry point -# -# Arguments: -# EntryPoint - Pointer to the location to enter -# Parameter - Parameter to pass in -# NewStack - New Location of the stack -# NewBsp - New BSP -# -# Returns: -# -# Nothing. Goes to the Entry Point passing in the new parameters -# -#SwitchStacks PROC C \ -# EntryPoint:PTR DWORD, \ -# Parameter:DWORD, \ -# NewStack:PTR DWORD, \ -# NewBsp:PTR DWORD -ASM_PFX(SwitchStacks): - push %ebp - mov %esp,%ebp - push %ebx - mov 0x14(%ebp),%eax - mov 0xc(%ebp),%ebx - mov 0x8(%ebp),%ecx - mov 0x10(%ebp),%eax - mov %eax,%esp - push %ebx - push $0x0 - jmp *%ecx - pop %ebx - leave - ret - - - - -# -# Routine Description: -# This allows the caller to switch the stack and goes to the new entry point -# -# Arguments: -# EntryPoint - Pointer to the location to enter -# Parameter1/Parameter2 - Parameter to pass in -# NewStack - New Location of the stack -# NewBsp - New BSP -# -# Returns: -# -# Nothing. Goes to the Entry Point passing in the new parameters -# -#SwitchIplStacks PROC C \ -# EntryPoint:PTR DWORD, \ -# Parameter1:DWORD, \ -# Parameter2:DWORD, \ -# NewStack:PTR DWORD, \ -# NewBsp:PTR DWORD -ASM_PFX(SwitchIplStacks): - push %ebp - mov %esp,%ebp - push %ebx - mov 0x18(%ebp),%eax - mov 0xc(%ebp),%ebx - mov 0x10(%ebp),%edx - mov 0x8(%ebp),%ecx - mov 0x14(%ebp),%eax - mov %eax,%esp - push %edx - push %ebx - call *%ecx - pop %ebx - leave - ret - -#SwitchIplStacks ENDP - - - +# +# Copyright (c) 2004, Intel Corporation +# 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. +# +# Module Name: +# +# ProcessorAsms.Asm +# +# +# +#include "EfiBind.h" +#------------------------------------------------------------------------------ + + .686P: + .MMX: + #.MODEL SMALL + .CODE: +#------------------------------------------------------------------------------ + +.globl ASM_PFX(TransferControlSetJump) +.globl ASM_PFX(TransferControlLongJump) +.globl ASM_PFX(SwitchStacks) +.globl ASM_PFX(SwitchIplStacks) + +#define EFI_SUCCESS 0 +#define EFI_WARN_RETURN_FROM_LONG_JUMP 5 + +# +# typedef struct { +# UINT32 ebx; +# UINT32 esi; +# UINT32 edi; +# UINT32 ebp; +# UINT32 esp; +# UINT32 eip; +#} EFI_JUMP_BUFFER; +# + +#typedef +#EFI_STATUS +#(EFIAPI *EFI_PEI_TRANSFER_CONTROL_SET_JUMP) ( +# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, +# OUT EFI_JUMP_BUFFER *Context +# ); +# +#Routine Description: +# +# This routine implements the IA32 variant of the SetJump call. Its +# responsibility is to store system state information for a possible +# subsequent LongJump. +# +#Arguments: +# +# Pointer to CPU context save buffer. +# +#Returns: +# +# EFI_SUCCESS +# +ASM_PFX(TransferControlSetJump): + push %ebp + mov %esp,%ebp + mov 0x8(%ebp),%eax + mov 0xc(%ebp),%ecx + mov %ebx,(%ecx) + mov %esi,0x4(%ecx) + mov %edi,0x8(%ecx) + mov 0x0(%ebp),%eax + mov %eax,0xc(%ecx) + lea 0x4(%ebp),%eax + mov %eax,0x10(%ecx) + mov 0x4(%ebp),%eax + mov %eax,0x14(%ecx) + mov $0x0,%eax + leave + ret + +#typedef +#EFI_STATUS +#(EFIAPI *EFI_PEI_TRANSFER_CONTROL_LONG_JUMP) ( +# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, +# IN EFI_JUMP_BUFFER *Context +# ); +# +# Routine Description: +# +# This routine implements the IA32 variant of the LongJump call. Its +# responsibility is restore the system state to the Context Buffer and +# pass control back. +# +# Arguments: +# +# Pointer to CPU context save buffer. +# +# Returns: +# +# EFI_WARN_RETURN_FROM_LONG_JUMP +# + +ASM_PFX(TransferControlLongJump): + push %ebp + mov %esp,%ebp + push %ebx + push %esi + push %edi + mov 0x8(%ebp),%eax + mov $0x5,%eax + mov 0xc(%ebp),%ecx + mov (%ecx),%ebx + mov 0x4(%ecx),%esi + mov 0x8(%ecx),%edi + mov 0xc(%ecx),%ebp + mov 0x10(%ecx),%esp + add $0x4,%esp + jmp *0x14(%ecx) + mov $0x5,%eax + pop %edi + pop %esi + pop %ebx + leave + ret + +# +# Routine Description: +# This allows the caller to switch the stack and goes to the new entry point +# +# Arguments: +# EntryPoint - Pointer to the location to enter +# Parameter - Parameter to pass in +# NewStack - New Location of the stack +# NewBsp - New BSP +# +# Returns: +# +# Nothing. Goes to the Entry Point passing in the new parameters +# +#SwitchStacks PROC C \ +# EntryPoint:PTR DWORD, \ +# Parameter:DWORD, \ +# NewStack:PTR DWORD, \ +# NewBsp:PTR DWORD +ASM_PFX(SwitchStacks): + push %ebp + mov %esp,%ebp + push %ebx + mov 0x14(%ebp),%eax + mov 0xc(%ebp),%ebx + mov 0x8(%ebp),%ecx + mov 0x10(%ebp),%eax + mov %eax,%esp + push %ebx + push $0x0 + jmp *%ecx + pop %ebx + leave + ret + + + + +# +# Routine Description: +# This allows the caller to switch the stack and goes to the new entry point +# +# Arguments: +# EntryPoint - Pointer to the location to enter +# Parameter1/Parameter2 - Parameter to pass in +# NewStack - New Location of the stack +# NewBsp - New BSP +# +# Returns: +# +# Nothing. Goes to the Entry Point passing in the new parameters +# +#SwitchIplStacks PROC C \ +# EntryPoint:PTR DWORD, \ +# Parameter1:DWORD, \ +# Parameter2:DWORD, \ +# NewStack:PTR DWORD, \ +# NewBsp:PTR DWORD +ASM_PFX(SwitchIplStacks): + push %ebp + mov %esp,%ebp + push %ebx + mov 0x18(%ebp),%eax + mov 0xc(%ebp),%ebx + mov 0x10(%ebp),%edx + mov 0x8(%ebp),%ecx + mov 0x14(%ebp),%eax + mov %eax,%esp + push %edx + push %ebx + call *%ecx + pop %ebx + leave + ret + +#SwitchIplStacks ENDP + + +