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Add initial version of Open Virtual Machine Firmware (OVMF) platform.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8398 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jljusten
2009-05-27 21:10:18 +00:00
parent a1f11f7547
commit 49ba9447c9
51 changed files with 6799 additions and 0 deletions
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60
OvmfPkg/Sec/X64/SecEntry.S Normal file
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# TITLE SecEntry.asm
#------------------------------------------------------------------------------
#*
#* Copyright 2006 - 2009, 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.
#*
#* CpuAsm.asm
#*
#* Abstract:
#*
#------------------------------------------------------------------------------
#include "SecMain.h"
#EXTERN ASM_PFX(SecCoreStartupWithStack)
#
# SecCore Entry Point
#
# Processor is in flat protected mode
#
# @param ESI Pointer to SEC Core Entry Point (this function)
# @param EDI Pointer to PEI Core Entry Point
# @param EBP Pointer to the start of the Boot Firmware Volume
#
# @return None
#
#
.intel_syntax
ASM_GLOBAL ASM_PFX(_ModuleEntryPoint)
ASM_PFX(_ModuleEntryPoint):
#
# Load temporary stack top at very low memory. The C code
# can reload to a better address.
#
mov %rsp, INITIAL_TOP_OF_STACK
nop
#
# Setup parameters and call SecCoreStartupWithStack
# rcx: BootFirmwareVolumePtr
# rdx: SecCoreEntryPoint
# r8: PeiCoreEntryPoint
# r9: TopOfCurrentStack
#
mov %rcx, %rbp
mov %rdx, %rsi
mov %r8, %rdi
mov %r9, %rsp
call ASM_PFX(SecCoreStartupWithStack)

61
OvmfPkg/Sec/X64/SecEntry.asm Normal file
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TITLE SecEntry.asm
;------------------------------------------------------------------------------
;*
;* Copyright 2006 - 2009, 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.
;*
;* CpuAsm.asm
;*
;* Abstract:
;*
;------------------------------------------------------------------------------
#include "SecMain.h"
.code
EXTERN SecCoreStartupWithStack:PROC
;
; SecCore Entry Point
;
; Processor is in flat protected mode
;
; @param ESI Pointer to SEC Core Entry Point (this function)
; @param EDI Pointer to PEI Core Entry Point
; @param EBP Pointer to the start of the Boot Firmware Volume
;
; @return None
;
;
_ModuleEntryPoint PROC PUBLIC
;
; Load temporary stack top at very low memory. The C code
; can reload to a better address.
;
mov rsp, INITIAL_TOP_OF_STACK
nop
;
; Setup parameters and call SecCoreStartupWithStack
; rcx: BootFirmwareVolumePtr
; rdx: SecCoreEntryPoint
; r8: PeiCoreEntryPoint
; r9: TopOfCurrentStack
;
mov rcx, rbp
mov rdx, rsi
mov r8, rdi
mov r9, rsp
call SecCoreStartupWithStack
_ModuleEntryPoint ENDP
END

165
OvmfPkg/Sec/X64/SwitchStack.c Normal file
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/** @file
Switch Stack functions.
Copyright (c) 2006 - 2007, Intel Corporation<BR>
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 common header file for this module.
//
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PeiServicesLib.h>
//
// Type define for PEI Core Entry Point function
//
typedef
VOID
(EFIAPI *PEI_CORE_ENTRY_POINT)(
IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,
IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList,
IN VOID *Data
)
;
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
PeiSwitchStacks (
IN SWITCH_STACK_ENTRY_POINT EntryPoint,
IN VOID *Context1, OPTIONAL
IN VOID *Context2, OPTIONAL
IN VOID *Context3, OPTIONAL
IN VOID *OldTopOfStack,
IN VOID *NewStack
)
{
BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
UINTN SizeOfStackUsed;
UINTN SetJumpFlag;
ASSERT (EntryPoint != NULL);
ASSERT (NewStack != NULL);
SetJumpFlag = SetJump (&JumpBuffer);
//
// The initial call to SetJump() must always return 0.
// Subsequent calls to LongJump() may cause a non-zero value to be returned by SetJump().
//
if (SetJumpFlag == 0) {
//
// Stack should be aligned with CPU_STACK_ALIGNMENT
//
ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0);
//JumpBuffer.Rip = (UINTN)EntryPoint;
SizeOfStackUsed = (UINTN)OldTopOfStack - JumpBuffer.Rsp;
JumpBuffer.Rsp = (UINTN)NewStack - SizeOfStackUsed;
MemoryFence ();
CopyMem (
(VOID*) ((UINTN)NewStack - SizeOfStackUsed),
(VOID*) ((UINTN)OldTopOfStack - SizeOfStackUsed),
SizeOfStackUsed
);
LongJump (&JumpBuffer, (UINTN)-1);
} else {
(*(PEI_CORE_ENTRY_POINT)(EntryPoint)) (
(EFI_SEC_PEI_HAND_OFF *) Context1,
(EFI_PEI_PPI_DESCRIPTOR *) Context2,
Context3
);
}
//
// InternalSwitchStack () will never return
//
ASSERT (FALSE);
}
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
SecSwitchStack (
IN UINTN TemporaryMemoryBase,
IN UINTN PermanentMemoryBase,
IN UINTN CopySize
)
{
BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
UINTN SetJumpFlag;
ASSERT ((VOID*)TemporaryMemoryBase != NULL);
ASSERT ((VOID*)PermanentMemoryBase != NULL);
SetJumpFlag = SetJump (&JumpBuffer);
//
// The initial call to SetJump() must always return 0.
// Subsequent calls to LongJump() may cause a non-zero value to be returned by SetJump().
//
if (SetJumpFlag == 0) {
DEBUG ((EFI_D_ERROR, "SecSwitchStack+%d: Rsp: 0x%xL\n", __LINE__, JumpBuffer.Rsp));
JumpBuffer.Rsp =
(INTN)JumpBuffer.Rsp -
(INTN)TemporaryMemoryBase +
(INTN)PermanentMemoryBase;
MemoryFence ();
CopyMem((VOID*)PermanentMemoryBase, (VOID*)TemporaryMemoryBase, CopySize);
LongJump (&JumpBuffer, (UINTN)-1);
}
}