ArmPlatformPkg: Introduced 'ArmPlatformSecLib'
The function only used in Secure Firmware used to be mixed with the Non-Secure/Normal functions in ArmPlatformLib. When the Secure Firmware was not required for some platforms (eg: BeagleBoard), these functions were empty functions. This new interface has been created to clean the ArmPlatformLib interface between the SEC and PEI phases. Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13260 6f19259b-4bc3-4df7-8a09-765794883524
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oliviermartin
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//
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// Copyright (c) 2011-2012, ARM Limited. All rights reserved.
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//
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// This program and the accompanying materials
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// are licensed and made available under the terms and conditions of the BSD License
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// which accompanies this distribution. The full text of the license may be found at
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// http://opensource.org/licenses/bsd-license.php
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//
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// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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//
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//
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#include <Base.h>
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#include <AutoGen.h>
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.text
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.align 3
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GCC_ASM_EXPORT(ArmPlatformSecBootAction)
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GCC_ASM_EXPORT(ArmPlatformSecBootMemoryInit)
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/**
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Call at the beginning of the platform boot up
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This function allows the firmware platform to do extra actions at the early
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stage of the platform power up.
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Note: This function must be implemented in assembler as there is no stack set up yet
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**/
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ASM_PFX(ArmPlatformSecBootAction):
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bx lr
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/**
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Initialize the memory where the initial stacks will reside
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This memory can contain the initial stacks (Secure and Secure Monitor stacks).
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In some platform, this region is already initialized and the implementation of this function can
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do nothing. This memory can also represent the Secure RAM.
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This function is called before the satck has been set up. Its implementation must ensure the stack
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pointer is not used (probably required to use assembly language)
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**/
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ASM_PFX(ArmPlatformSecBootMemoryInit):
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// The SMC does not need to be initialized for RTSM
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bx lr
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@@ -0,0 +1,47 @@
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//
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// Copyright (c) 2011-2012, ARM Limited. All rights reserved.
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//
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// This program and the accompanying materials
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// are licensed and made available under the terms and conditions of the BSD License
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// which accompanies this distribution. The full text of the license may be found at
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// http://opensource.org/licenses/bsd-license.php
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//
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// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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//
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//
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#include <Base.h>
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#include <AutoGen.h>
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EXPORT ArmPlatformSecBootAction
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EXPORT ArmPlatformSecBootMemoryInit
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PRESERVE8
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AREA ArmPlatformSecLibBoot, CODE, READONLY
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/**
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Call at the beginning of the platform boot up
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This function allows the firmware platform to do extra actions at the early
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stage of the platform power up.
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Note: This function must be implemented in assembler as there is no stack set up yet
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**/
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ArmPlatformSecBootAction
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bx lr
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/**
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Initialize the memory where the initial stacks will reside
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This memory can contain the initial stacks (Secure and Secure Monitor stacks).
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In some platform, this region is already initialized and the implementation of this function can
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do nothing. This memory can also represent the Secure RAM.
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This function is called before the satck has been set up. Its implementation must ensure the stack
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pointer is not used (probably required to use assembly language)
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**/
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ArmPlatformSecBootMemoryInit
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// The SMC does not need to be initialized for RTSM
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bx lr
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@@ -0,0 +1,74 @@
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/** @file
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*
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* Copyright (c) 2011-2012, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#include <Library/ArmPlatformLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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/**
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Initialize the Secure peripherals and memory regions
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If Trustzone is supported by your platform then this function makes the required initialization
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of the secure peripherals and memory regions.
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**/
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VOID
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ArmPlatformSecTrustzoneInit (
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IN UINTN MpId
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)
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{
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// Secondary cores might have to set the Secure SGIs into the GICD_IGROUPR0
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if (!IS_PRIMARY_CORE(MpId)) {
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return;
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}
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ASSERT(FALSE);
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}
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/**
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Initialize controllers that must setup at the early stage
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Some peripherals must be initialized in Secure World.
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For example, some L2x0 requires to be initialized in Secure World
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**/
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RETURN_STATUS
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ArmPlatformSecInitialize (
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IN UINTN MpId
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)
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{
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// If it is not the primary core then there is nothing to do
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if (!IS_PRIMARY_CORE(MpId)) {
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return RETURN_SUCCESS;
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}
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// Do nothing yet
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return RETURN_SUCCESS;
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}
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/**
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Call before jumping to Normal World
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This function allows the firmware platform to do extra actions before
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jumping to the Normal World
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**/
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VOID
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ArmPlatformSecExtraAction (
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IN UINTN MpId,
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OUT UINTN* JumpAddress
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)
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{
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*JumpAddress = PcdGet32(PcdFvBaseAddress);
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}
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@@ -0,0 +1,41 @@
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#/* @file
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# Copyright (c) 2011-2012, ARM Limited. All rights reserved.
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#*/
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = ArmPlatformLibSecNull
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FILE_GUID = a2cf63c6-d44f-4cd0-8af6-722a0138c021
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = ArmPlatformSecLib
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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ArmPkg/ArmPkg.dec
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ArmPlatformPkg/ArmPlatformPkg.dec
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[LibraryClasses]
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ArmLib
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DebugLib
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[Sources.common]
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ArmPlatformLibNullSec.c
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ArmPlatformLibNullBoot.asm | RVCT
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ArmPlatformLibNullBoot.S | GCC
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[FixedPcd]
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gArmTokenSpaceGuid.PcdFvBaseAddress
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gArmTokenSpaceGuid.PcdArmPrimaryCoreMask
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gArmTokenSpaceGuid.PcdArmPrimaryCore
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