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authorJordan Justen <jordan.l.justen@intel.com>2014-01-21 19:38:43 +0000
committerjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2014-01-21 19:38:43 +0000
commit7cb6b0e068092d6a92d49b532703b70713e9d277 (patch)
treea9c564ed6773466c9740e99f7b328abe7c08132b /OvmfPkg/Sec
parentb382ede3864e17e8827dbc90c7d4f1540b94ff3f (diff)
downloadedk2-7cb6b0e068092d6a92d49b532703b70713e9d277.tar.gz
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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
Diffstat (limited to 'OvmfPkg/Sec')
-rw-r--r--OvmfPkg/Sec/Ia32/SecEntry.S114
-rw-r--r--OvmfPkg/Sec/Ia32/SecEntry.asm14
-rw-r--r--OvmfPkg/Sec/SecMain.c6
-rw-r--r--OvmfPkg/Sec/SecMain.inf2
-rw-r--r--OvmfPkg/Sec/X64/SecEntry.S110
-rw-r--r--OvmfPkg/Sec/X64/SecEntry.asm9
6 files changed, 136 insertions, 119 deletions
diff --git a/OvmfPkg/Sec/Ia32/SecEntry.S b/OvmfPkg/Sec/Ia32/SecEntry.S
index a1b0c0d0f0..0771a87449 100644
--- a/OvmfPkg/Sec/Ia32/SecEntry.S
+++ b/OvmfPkg/Sec/Ia32/SecEntry.S
@@ -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
+
diff --git a/OvmfPkg/Sec/Ia32/SecEntry.asm b/OvmfPkg/Sec/Ia32/SecEntry.asm
index 4b0e95af48..e9458adc49 100644
--- a/OvmfPkg/Sec/Ia32/SecEntry.asm
+++ b/OvmfPkg/Sec/Ia32/SecEntry.asm
@@ -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
diff --git a/OvmfPkg/Sec/SecMain.c b/OvmfPkg/Sec/SecMain.c
index ece1c9b517..8bdf6e5238 100644
--- a/OvmfPkg/Sec/SecMain.c
+++ b/OvmfPkg/Sec/SecMain.c
@@ -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;
diff --git a/OvmfPkg/Sec/SecMain.inf b/OvmfPkg/Sec/SecMain.inf
index 68dfeaaa4b..0b1cda83df 100644
--- a/OvmfPkg/Sec/SecMain.inf
+++ b/OvmfPkg/Sec/SecMain.inf
@@ -67,3 +67,5 @@
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvSize
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize
diff --git a/OvmfPkg/Sec/X64/SecEntry.S b/OvmfPkg/Sec/X64/SecEntry.S
index de0859bcfb..37354d9f3c 100644
--- a/OvmfPkg/Sec/X64/SecEntry.S
+++ b/OvmfPkg/Sec/X64/SecEntry.S
@@ -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)
+
diff --git a/OvmfPkg/Sec/X64/SecEntry.asm b/OvmfPkg/Sec/X64/SecEntry.asm
index 55f5eabbfd..4135208a3a 100644
--- a/OvmfPkg/Sec/X64/SecEntry.asm
+++ b/OvmfPkg/Sec/X64/SecEntry.asm
@@ -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
;