OvmfPkg: Move SEC/PEI Temporary RAM from 0x70000 to 0x810000

Note: The Temporary RAM memory size is being reduced from
      64KB to 32KB. This still appears to be more than
      adequate for OVMF's early PEI phase. We will be adding
      another 32KB range of RAM just above this range for
      use on S3 resume.

The range is declared as part of MEMFD, so it is easier
to identify the memory range.

We also now assign PCDs to the memory range.

The PCDs are used to set the initial SEC/PEI stack in
SEC's assembly code.

The PCDs are also used in the SEC C code to setup
the Temporary RAM PPI.

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

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15147 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jordan Justen 2014-01-21 19:38:43 +00:00 committed by jljusten
parent b382ede386
commit 7cb6b0e068
10 changed files with 147 additions and 119 deletions

View File

@ -80,6 +80,8 @@
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFdBaseAddress|0x0|UINT32|0xf
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase|0x0|UINT32|0x11
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesSize|0x0|UINT32|0x12
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase|0x0|UINT32|0x13
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize|0x0|UINT32|0x14
[PcdsDynamic, PcdsDynamicEx]
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|2

View File

@ -138,6 +138,9 @@ NumBlocks = 0x80
0x000000|0x006000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesSize
0x010000|0x008000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize
0x020000|0x7E0000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvSize
FV = MAINFV

View File

@ -138,6 +138,9 @@ NumBlocks = 0x80
0x000000|0x006000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesSize
0x010000|0x008000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize
0x020000|0x7E0000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvSize
FV = MAINFV

View File

@ -138,6 +138,9 @@ NumBlocks = 0x80
0x000000|0x006000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesSize
0x010000|0x008000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize
0x020000|0x7E0000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvSize
FV = MAINFV

View File

@ -1,55 +1,59 @@
# TITLE SecEntry.asm
#------------------------------------------------------------------------------
#*
#* Copyright (c) 2006 - 2009, 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.
#*
#* CpuAsm.asm
#*
#* Abstract:
#*
#------------------------------------------------------------------------------
#include <Base.h>
#EXTERN ASM_PFX(SecCoreStartupWithStack)
#
# SecCore Entry Point
#
# Processor is in flat protected mode
#
# @param[in] EAX Initial value of the EAX register (BIST: Built-in Self Test)
# @param[in] DI 'BP': boot-strap processor, or 'AP': application processor
# @param[in] EBP Pointer to the start of the Boot Firmware Volume
#
# @return None This routine does not return
#
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.
#
movl $BASE_512KB, %eax
movl %eax, %esp
nop
#
# Call into C code
#
pushl %eax
pushl %ebp
call ASM_PFX(SecCoreStartupWithStack)
#END
# TITLE SecEntry.asm
#------------------------------------------------------------------------------
#*
#* Copyright (c) 2006 - 2013, 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.
#*
#* CpuAsm.asm
#*
#* Abstract:
#*
#------------------------------------------------------------------------------
#include <Base.h>
#EXTERN ASM_PFX(SecCoreStartupWithStack)
#
# SecCore Entry Point
#
# Processor is in flat protected mode
#
# @param[in] EAX Initial value of the EAX register (BIST: Built-in Self Test)
# @param[in] DI 'BP': boot-strap processor, or 'AP': application processor
# @param[in] EBP Pointer to the start of the Boot Firmware Volume
#
# @return None This routine does not return
#
ASM_GLOBAL ASM_PFX(_ModuleEntryPoint)
ASM_PFX(_ModuleEntryPoint):
#
# Load temporary RAM stack based on PCDs
#
.set SEC_TOP_OF_STACK, FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \
FixedPcdGet32 (PcdOvmfSecPeiTempRamSize)
movl $SEC_TOP_OF_STACK, %eax
movl %eax, %esp
nop
#
# Setup parameters and call SecCoreStartupWithStack
# [esp] return address for call
# [esp+4] BootFirmwareVolumePtr
# [esp+8] TopOfCurrentStack
#
pushl %eax
pushl %ebp
call ASM_PFX(SecCoreStartupWithStack)
#END

View File

@ -1,7 +1,7 @@
TITLE SecEntry.asm
;------------------------------------------------------------------------------
;*
;* Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
;* Copyright (c) 2006 - 2013, 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
@ -38,15 +38,19 @@ EXTERN SecCoreStartupWithStack:PROC
_ModuleEntryPoint PROC PUBLIC
;
; Load temporary stack top at very low memory. The C code
; can reload to a better address.
; Load temporary RAM stack based on PCDs
;
mov eax, BASE_512KB
SEC_TOP_OF_STACK EQU (FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \
FixedPcdGet32 (PcdOvmfSecPeiTempRamSize))
mov eax, SEC_TOP_OF_STACK
mov esp, eax
nop
;
; Call into C code
; Setup parameters and call SecCoreStartupWithStack
; [esp] return address for call
; [esp+4] BootFirmwareVolumePtr
; [esp+8] TopOfCurrentStack
;
push eax
push ebp

View File

@ -631,12 +631,16 @@ SecCoreStartupWithStack (
// |-------------| <-- SecCoreData.TemporaryRamBase
//
ASSERT ((UINTN) (PcdGet32 (PcdOvmfSecPeiTempRamBase) +
PcdGet32 (PcdOvmfSecPeiTempRamSize)) ==
(UINTN) TopOfCurrentStack);
//
// Initialize SEC hand-off state
//
SecCoreData.DataSize = sizeof(EFI_SEC_PEI_HAND_OFF);
SecCoreData.TemporaryRamSize = SIZE_64KB;
SecCoreData.TemporaryRamSize = (UINTN) PcdGet32 (PcdOvmfSecPeiTempRamSize);
SecCoreData.TemporaryRamBase = (VOID*)((UINT8 *)TopOfCurrentStack - SecCoreData.TemporaryRamSize);
SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;

View File

@ -67,3 +67,5 @@
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvSize
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize

View File

@ -1,54 +1,56 @@
# TITLE SecEntry.asm
#------------------------------------------------------------------------------
#*
#* Copyright (c) 2006 - 2009, 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.
#*
#* CpuAsm.asm
#*
#* Abstract:
#*
#------------------------------------------------------------------------------
#include <Base.h>
#EXTERN ASM_PFX(SecCoreStartupWithStack)
#
# SecCore Entry Point
#
# Processor is in flat protected mode
#
# @param[in] RAX Initial value of the EAX register (BIST: Built-in Self Test)
# @param[in] DI 'BP': boot-strap processor, or 'AP': application processor
# @param[in] RBP Pointer to the start of the Boot Firmware Volume
#
# @return None This routine does not return
#
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.
#
movq $BASE_512KB, %rsp
nop
#
# Setup parameters and call SecCoreStartupWithStack
# rcx: BootFirmwareVolumePtr
# rdx: TopOfCurrentStack
#
movq %rbp, %rcx
movq %rsp, %rdx
subq $0x20, %rsp
call ASM_PFX(SecCoreStartupWithStack)
# TITLE SecEntry.asm
#------------------------------------------------------------------------------
#*
#* Copyright (c) 2006 - 2013, 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.
#*
#* CpuAsm.asm
#*
#* Abstract:
#*
#------------------------------------------------------------------------------
#include <Base.h>
#EXTERN ASM_PFX(SecCoreStartupWithStack)
#
# SecCore Entry Point
#
# Processor is in flat protected mode
#
# @param[in] RAX Initial value of the EAX register (BIST: Built-in Self Test)
# @param[in] DI 'BP': boot-strap processor, or 'AP': application processor
# @param[in] RBP Pointer to the start of the Boot Firmware Volume
#
# @return None This routine does not return
#
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.
#
.set SEC_TOP_OF_STACK, FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \
FixedPcdGet32 (PcdOvmfSecPeiTempRamSize)
movq $SEC_TOP_OF_STACK, %rsp
nop
#
# Setup parameters and call SecCoreStartupWithStack
# rcx: BootFirmwareVolumePtr
# rdx: TopOfCurrentStack
#
movq %rbp, %rcx
movq %rsp, %rdx
subq $0x20, %rsp
call ASM_PFX(SecCoreStartupWithStack)

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@ -1,7 +1,7 @@
TITLE SecEntry.asm
;------------------------------------------------------------------------------
;*
;* Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
;* Copyright (c) 2006 - 2013, 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
@ -36,10 +36,11 @@ EXTERN SecCoreStartupWithStack:PROC
_ModuleEntryPoint PROC PUBLIC
;
; Load temporary stack top at very low memory. The C code
; can reload to a better address.
; Load temporary RAM stack based on PCDs
;
mov rsp, BASE_512KB
SEC_TOP_OF_STACK EQU (FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \
FixedPcdGet32 (PcdOvmfSecPeiTempRamSize))
mov rsp, SEC_TOP_OF_STACK
nop
;