mirror of https://github.com/acidanthera/audk.git
ArmVirtualizationPkg: add a relocatable version of PrePi
This patch introduces a relocatable PrePi, which can execute from arbitrary offsets in RAM. This is intendend to be run from a boot loader which passes a description of the actual platform in a device tree, for instance. This module is based on the PrePi implementations residing under ArmPlatformPkg. Contributed-under: TianoCore Contribution Agreement 1.0 Reviewed-by: Olivier Martin <olivier.martin@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16961 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel
lersek
parent
616ea9daea
commit
f9a9d2dc3c
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/** @file
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*
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* Copyright (c) 2011-2013, 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 "PrePi.h"
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#include <Chipset/AArch64.h>
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VOID
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ArchInitialize (
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VOID
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)
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{
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// Enable Floating Point
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if (FixedPcdGet32 (PcdVFPEnabled)) {
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ArmEnableVFP ();
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}
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if (ArmReadCurrentEL () == AARCH64_EL2) {
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// Trap General Exceptions. All exceptions that would be routed to EL1 are routed to EL2
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ArmWriteHcr (ARM_HCR_TGE);
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}
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}
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@ -0,0 +1,180 @@
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//
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// Copyright (c) 2011-2013, ARM Limited. All rights reserved.
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// Copyright (c) 2015, Linaro 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 <AsmMacroIoLibV8.h>
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#include <Base.h>
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#include <Library/PcdLib.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_IMPORT(ArmPlatformIsPrimaryCore)
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GCC_ASM_IMPORT(ArmReadMpidr)
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GCC_ASM_IMPORT(ArmPlatformPeiBootAction)
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GCC_ASM_IMPORT(ArmPlatformStackSet)
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GCC_ASM_EXPORT(_ModuleEntryPoint)
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StartupAddr: .8byte ASM_PFX(CEntryPoint)
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ASM_PFX(_ModuleEntryPoint):
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//
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// We are built as a ET_DYN PIE executable, so we need to process all
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// relative relocations regardless of whether or not we are executing from
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// the same offset we were linked at. This is only possible if we are
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// running from RAM.
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//
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adr x8, __reloc_base
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adr x9, __reloc_start
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adr x10, __reloc_end
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.Lreloc_loop:
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cmp x9, x10
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bhs .Lreloc_done
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//
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// AArch64 uses the ELF64 RELA format, which means each entry in the
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// relocation table consists of
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//
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// UINT64 offset : the relative offset of the value that needs to
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// be relocated
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// UINT64 info : relocation type and symbol index (the latter is
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// not used for R_AARCH64_RELATIVE relocations)
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// UINT64 addend : value to be added to the value being relocated
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//
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ldp x11, x12, [x9], #24 // read offset into x11 and info into x12
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cmp x12, #0x403 // check info == R_AARCH64_RELATIVE?
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bne .Lreloc_loop // not a relative relocation? then skip
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ldr x12, [x9, #-8] // read addend into x12
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add x12, x12, x8 // add reloc base to addend to get relocated value
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str x12, [x11, x8] // write relocated value at offset
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b .Lreloc_loop
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.Lreloc_done:
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// Do early platform specific actions
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bl ASM_PFX(ArmPlatformPeiBootAction)
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// Get ID of this CPU in Multicore system
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bl ASM_PFX(ArmReadMpidr)
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// Keep a copy of the MpId register value
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mov x10, x0
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// Check if we can install the stack at the top of the System Memory or if we need
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// to install the stacks at the bottom of the Firmware Device (case the FD is located
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// at the top of the DRAM)
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_SetupStackPosition:
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// Compute Top of System Memory
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ldr x1, PcdGet64 (PcdSystemMemoryBase)
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ldr x2, PcdGet64 (PcdSystemMemorySize)
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sub x2, x2, #1
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add x1, x1, x2 // x1 = SystemMemoryTop = PcdSystemMemoryBase + PcdSystemMemorySize
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// Calculate Top of the Firmware Device
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ldr x2, PcdGet64 (PcdFdBaseAddress)
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ldr w3, PcdGet32 (PcdFdSize)
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sub x3, x3, #1
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add x3, x3, x2 // x3 = FdTop = PcdFdBaseAddress + PcdFdSize
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// UEFI Memory Size (stacks are allocated in this region)
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LoadConstantToReg (FixedPcdGet32(PcdSystemMemoryUefiRegionSize), x4)
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//
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// Reserve the memory for the UEFI region (contain stacks on its top)
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//
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// Calculate how much space there is between the top of the Firmware and the Top of the System Memory
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subs x0, x1, x3 // x0 = SystemMemoryTop - FdTop
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b.mi _SetupStack // Jump if negative (FdTop > SystemMemoryTop). Case when the PrePi is in XIP memory outside of the DRAM
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cmp x0, x4
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b.ge _SetupStack
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// Case the top of stacks is the FdBaseAddress
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mov x1, x2
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_SetupStack:
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// x1 contains the top of the stack (and the UEFI Memory)
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// Because the 'push' instruction is equivalent to 'stmdb' (decrement before), we need to increment
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// one to the top of the stack. We check if incrementing one does not overflow (case of DRAM at the
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// top of the memory space)
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adds x11, x1, #1
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b.cs _SetupOverflowStack
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_SetupAlignedStack:
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mov x1, x11
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b _GetBaseUefiMemory
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_SetupOverflowStack:
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// Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE
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// aligned (4KB)
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LoadConstantToReg (EFI_PAGE_MASK, x11)
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and x11, x11, x1
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sub x1, x1, x11
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_GetBaseUefiMemory:
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// Calculate the Base of the UEFI Memory
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sub x11, x1, x4
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_GetStackBase:
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// r1 = The top of the Mpcore Stacks
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// Stack for the primary core = PrimaryCoreStack
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LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), x2)
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sub x12, x1, x2
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// Stack for the secondary core = Number of Cores - 1
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LoadConstantToReg (FixedPcdGet32(PcdCoreCount), x0)
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sub x0, x0, #1
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LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), x1)
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mul x1, x1, x0
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sub x12, x12, x1
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// x12 = The base of the MpCore Stacks (primary stack & secondary stacks)
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mov x0, x12
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mov x1, x10
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//ArmPlatformStackSet(StackBase, MpId, PrimaryStackSize, SecondaryStackSize)
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LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), x2)
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LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), x3)
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bl ASM_PFX(ArmPlatformStackSet)
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// Is it the Primary Core ?
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mov x0, x10
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bl ASM_PFX(ArmPlatformIsPrimaryCore)
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cmp x0, #1
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bne _PrepareArguments
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_ReserveGlobalVariable:
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LoadConstantToReg (FixedPcdGet32(PcdPeiGlobalVariableSize), x0)
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// InitializePrimaryStack($GlobalVariableSize, $Tmp1, $Tmp2)
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InitializePrimaryStack(x0, x1, x2)
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_PrepareArguments:
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mov x0, x10
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mov x1, x11
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mov x2, x12
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mov x3, sp
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// Move sec startup address into a data register
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// Ensure we're jumping to FV version of the code (not boot remapped alias)
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ldr x4, StartupAddr
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// Jump to PrePiCore C code
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// x0 = MpId
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// x1 = UefiMemoryBase
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// x2 = StacksBase
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// x3 = GlobalVariableBase
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blr x4
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_NeverReturn:
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b _NeverReturn
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@ -0,0 +1,108 @@
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#/** @file
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#
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# Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
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# Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
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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 = ArmVirtPrePiUniCoreRelocatable
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FILE_GUID = f7d9fd14-9335-4389-80c5-334d6abfcced
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MODULE_TYPE = SEC
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VALID_ARCHITECTURES = AARCH64
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VERSION_STRING = 1.0
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[Sources]
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PrePi.c
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[Sources.AArch64]
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AArch64/ArchPrePi.c
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AArch64/ModuleEntryPoint.S
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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EmbeddedPkg/EmbeddedPkg.dec
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ArmPkg/ArmPkg.dec
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ArmPlatformPkg/ArmPlatformPkg.dec
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ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec
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IntelFrameworkModulePkg/IntelFrameworkModulePkg.dec
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[LibraryClasses]
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BaseLib
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DebugLib
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ArmLib
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IoLib
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TimerLib
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SerialPortLib
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ExtractGuidedSectionLib
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LzmaDecompressLib
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PeCoffGetEntryPointLib
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PrePiLib
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ArmPlatformLib
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ArmPlatformStackLib
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MemoryAllocationLib
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HobLib
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PrePiHobListPointerLib
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PlatformPeiLib
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MemoryInitPeiLib
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[Ppis]
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gArmMpCoreInfoPpiGuid
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[Guids]
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gArmGlobalVariableGuid
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gArmMpCoreInfoGuid
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[FeaturePcd]
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gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
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gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores
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[FixedPcd]
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gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
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gArmTokenSpaceGuid.PcdVFPEnabled
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gArmTokenSpaceGuid.PcdFdSize
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gArmTokenSpaceGuid.PcdFvSize
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gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
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gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize
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gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize
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gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize
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gArmPlatformTokenSpaceGuid.PcdCoreCount
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gEmbeddedTokenSpaceGuid.PcdPrePiCpuMemorySize
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gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIReclaimMemory
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIMemoryNVS
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiReservedMemoryType
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesData
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesCode
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiBootServicesCode
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiBootServicesData
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiLoaderCode
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiLoaderData
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[Pcd]
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gArmTokenSpaceGuid.PcdSystemMemoryBase
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gArmTokenSpaceGuid.PcdSystemMemorySize
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gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress
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gArmTokenSpaceGuid.PcdFdBaseAddress
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gArmTokenSpaceGuid.PcdFvBaseAddress
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[BuildOptions]
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GCC:*_*_AARCH64_DLINK_FLAGS = -pie -T $(MODULE_DIR)/Scripts/PrePi-PIE.lds
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@ -0,0 +1,103 @@
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/** @file
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LZMA Decompress Library header file
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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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
|
||||
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,
|
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __LZMA_DECOMPRESS_H___
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#define __LZMA_DECOMPRESS_H___
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/**
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Examines a GUIDed section and returns the size of the decoded buffer and the
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size of an scratch buffer required to actually decode the data in a GUIDed section.
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Examines a GUIDed section specified by InputSection.
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If GUID for InputSection does not match the GUID that this handler supports,
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then RETURN_UNSUPPORTED is returned.
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If the required information can not be retrieved from InputSection,
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then RETURN_INVALID_PARAMETER is returned.
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If the GUID of InputSection does match the GUID that this handler supports,
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then the size required to hold the decoded buffer is returned in OututBufferSize,
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the size of an optional scratch buffer is returned in ScratchSize, and the Attributes field
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from EFI_GUID_DEFINED_SECTION header of InputSection is returned in SectionAttribute.
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If InputSection is NULL, then ASSERT().
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If OutputBufferSize is NULL, then ASSERT().
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If ScratchBufferSize is NULL, then ASSERT().
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If SectionAttribute is NULL, then ASSERT().
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@param[in] InputSection A pointer to a GUIDed section of an FFS formatted file.
|
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@param[out] OutputBufferSize A pointer to the size, in bytes, of an output buffer required
|
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if the buffer specified by InputSection were decoded.
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@param[out] ScratchBufferSize A pointer to the size, in bytes, required as scratch space
|
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if the buffer specified by InputSection were decoded.
|
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@param[out] SectionAttribute A pointer to the attributes of the GUIDed section. See the Attributes
|
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field of EFI_GUID_DEFINED_SECTION in the PI Specification.
|
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|
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@retval RETURN_SUCCESS The information about InputSection was returned.
|
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@retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports.
|
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@retval RETURN_INVALID_PARAMETER The information can not be retrieved from the section specified by InputSection.
|
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|
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**/
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RETURN_STATUS
|
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EFIAPI
|
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LzmaGuidedSectionGetInfo (
|
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IN CONST VOID *InputSection,
|
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OUT UINT32 *OutputBufferSize,
|
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OUT UINT32 *ScratchBufferSize,
|
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OUT UINT16 *SectionAttribute
|
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);
|
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|
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/**
|
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Decompress a LZAM compressed GUIDed section into a caller allocated output buffer.
|
||||
|
||||
Decodes the GUIDed section specified by InputSection.
|
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If GUID for InputSection does not match the GUID that this handler supports, then RETURN_UNSUPPORTED is returned.
|
||||
If the data in InputSection can not be decoded, then RETURN_INVALID_PARAMETER is returned.
|
||||
If the GUID of InputSection does match the GUID that this handler supports, then InputSection
|
||||
is decoded into the buffer specified by OutputBuffer and the authentication status of this
|
||||
decode operation is returned in AuthenticationStatus. If the decoded buffer is identical to the
|
||||
data in InputSection, then OutputBuffer is set to point at the data in InputSection. Otherwise,
|
||||
the decoded data will be placed in caller allocated buffer specified by OutputBuffer.
|
||||
|
||||
If InputSection is NULL, then ASSERT().
|
||||
If OutputBuffer is NULL, then ASSERT().
|
||||
If ScratchBuffer is NULL and this decode operation requires a scratch buffer, then ASSERT().
|
||||
If AuthenticationStatus is NULL, then ASSERT().
|
||||
|
||||
|
||||
@param[in] InputSection A pointer to a GUIDed section of an FFS formatted file.
|
||||
@param[out] OutputBuffer A pointer to a buffer that contains the result of a decode operation.
|
||||
@param[out] ScratchBuffer A caller allocated buffer that may be required by this function
|
||||
as a scratch buffer to perform the decode operation.
|
||||
@param[out] AuthenticationStatus
|
||||
A pointer to the authentication status of the decoded output buffer.
|
||||
See the definition of authentication status in the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI
|
||||
section of the PI Specification. EFI_AUTH_STATUS_PLATFORM_OVERRIDE must
|
||||
never be set by this handler.
|
||||
|
||||
@retval RETURN_SUCCESS The buffer specified by InputSection was decoded.
|
||||
@retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports.
|
||||
@retval RETURN_INVALID_PARAMETER The section specified by InputSection can not be decoded.
|
||||
|
||||
**/
|
||||
RETURN_STATUS
|
||||
EFIAPI
|
||||
LzmaGuidedSectionExtraction (
|
||||
IN CONST VOID *InputSection,
|
||||
OUT VOID **OutputBuffer,
|
||||
OUT VOID *ScratchBuffer, OPTIONAL
|
||||
OUT UINT32 *AuthenticationStatus
|
||||
);
|
||||
|
||||
#endif // __LZMADECOMPRESS_H__
|
||||
|
||||
|
|
@ -0,0 +1,203 @@
|
|||
/** @file
|
||||
*
|
||||
* Copyright (c) 2011-2014, ARM Limited. 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 <PiPei.h>
|
||||
|
||||
#include <Library/PrePiLib.h>
|
||||
#include <Library/PrintLib.h>
|
||||
#include <Library/PeCoffGetEntryPointLib.h>
|
||||
#include <Library/PrePiHobListPointerLib.h>
|
||||
#include <Library/TimerLib.h>
|
||||
#include <Library/PerformanceLib.h>
|
||||
|
||||
#include <Ppi/GuidedSectionExtraction.h>
|
||||
#include <Ppi/ArmMpCoreInfo.h>
|
||||
#include <Guid/LzmaDecompress.h>
|
||||
#include <Guid/ArmGlobalVariableHob.h>
|
||||
|
||||
#include "PrePi.h"
|
||||
#include "LzmaDecompress.h"
|
||||
|
||||
// Not used when PrePi in run in XIP mode
|
||||
UINTN mGlobalVariableBase = 0;
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
ExtractGuidedSectionLibConstructor (
|
||||
VOID
|
||||
);
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
LzmaDecompressLibConstructor (
|
||||
VOID
|
||||
);
|
||||
|
||||
VOID
|
||||
EFIAPI
|
||||
BuildGlobalVariableHob (
|
||||
IN EFI_PHYSICAL_ADDRESS GlobalVariableBase,
|
||||
IN UINT32 GlobalVariableSize
|
||||
)
|
||||
{
|
||||
ARM_HOB_GLOBAL_VARIABLE *Hob;
|
||||
|
||||
Hob = CreateHob (EFI_HOB_TYPE_GUID_EXTENSION, sizeof (ARM_HOB_GLOBAL_VARIABLE));
|
||||
ASSERT(Hob != NULL);
|
||||
|
||||
CopyGuid (&(Hob->Header.Name), &gArmGlobalVariableGuid);
|
||||
Hob->GlobalVariableBase = GlobalVariableBase;
|
||||
Hob->GlobalVariableSize = GlobalVariableSize;
|
||||
}
|
||||
|
||||
EFI_STATUS
|
||||
GetPlatformPpi (
|
||||
IN EFI_GUID *PpiGuid,
|
||||
OUT VOID **Ppi
|
||||
)
|
||||
{
|
||||
UINTN PpiListSize;
|
||||
UINTN PpiListCount;
|
||||
EFI_PEI_PPI_DESCRIPTOR *PpiList;
|
||||
UINTN Index;
|
||||
|
||||
PpiListSize = 0;
|
||||
ArmPlatformGetPlatformPpiList (&PpiListSize, &PpiList);
|
||||
PpiListCount = PpiListSize / sizeof(EFI_PEI_PPI_DESCRIPTOR);
|
||||
for (Index = 0; Index < PpiListCount; Index++, PpiList++) {
|
||||
if (CompareGuid (PpiList->Guid, PpiGuid) == TRUE) {
|
||||
*Ppi = PpiList->Ppi;
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
|
||||
VOID
|
||||
PrePiMain (
|
||||
IN UINTN UefiMemoryBase,
|
||||
IN UINTN StacksBase,
|
||||
IN UINTN GlobalVariableBase,
|
||||
IN UINT64 StartTimeStamp
|
||||
)
|
||||
{
|
||||
EFI_HOB_HANDOFF_INFO_TABLE* HobList;
|
||||
EFI_STATUS Status;
|
||||
CHAR8 Buffer[100];
|
||||
UINTN CharCount;
|
||||
UINTN StacksSize;
|
||||
|
||||
// Initialize the architecture specific bits
|
||||
ArchInitialize ();
|
||||
|
||||
// Initialize the Serial Port
|
||||
SerialPortInitialize ();
|
||||
CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware (version %s built at %a on %a)\n\r",
|
||||
(CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
|
||||
SerialPortWrite ((UINT8 *) Buffer, CharCount);
|
||||
|
||||
// Declare the PI/UEFI memory region
|
||||
HobList = HobConstructor (
|
||||
(VOID*)UefiMemoryBase,
|
||||
FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
|
||||
(VOID*)UefiMemoryBase,
|
||||
(VOID*)StacksBase // The top of the UEFI Memory is reserved for the stacks
|
||||
);
|
||||
PrePeiSetHobList (HobList);
|
||||
|
||||
// Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
|
||||
Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
// Create the Stacks HOB (reserve the memory for all stacks)
|
||||
StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
|
||||
BuildStackHob (StacksBase, StacksSize);
|
||||
|
||||
// Declare the Global Variable HOB
|
||||
BuildGlobalVariableHob (GlobalVariableBase, FixedPcdGet32 (PcdPeiGlobalVariableSize));
|
||||
|
||||
//TODO: Call CpuPei as a library
|
||||
BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
|
||||
|
||||
// Set the Boot Mode
|
||||
SetBootMode (ArmPlatformGetBootMode ());
|
||||
|
||||
// Initialize Platform HOBs (CpuHob and FvHob)
|
||||
Status = PlatformPeim ();
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
// Now, the HOB List has been initialized, we can register performance information
|
||||
PERF_START (NULL, "PEI", NULL, StartTimeStamp);
|
||||
|
||||
// SEC phase needs to run library constructors by hand.
|
||||
ExtractGuidedSectionLibConstructor ();
|
||||
LzmaDecompressLibConstructor ();
|
||||
|
||||
// Build HOBs to pass up our version of stuff the DXE Core needs to save space
|
||||
BuildPeCoffLoaderHob ();
|
||||
BuildExtractSectionHob (
|
||||
&gLzmaCustomDecompressGuid,
|
||||
LzmaGuidedSectionGetInfo,
|
||||
LzmaGuidedSectionExtraction
|
||||
);
|
||||
|
||||
// Assume the FV that contains the SEC (our code) also contains a compressed FV.
|
||||
Status = DecompressFirstFv ();
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
// Load the DXE Core and transfer control to it
|
||||
Status = LoadDxeCoreFromFv (NULL, 0);
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
}
|
||||
|
||||
VOID
|
||||
CEntryPoint (
|
||||
IN UINTN MpId,
|
||||
IN UINTN UefiMemoryBase,
|
||||
IN UINTN StacksBase,
|
||||
IN UINTN GlobalVariableBase
|
||||
)
|
||||
{
|
||||
UINT64 StartTimeStamp;
|
||||
|
||||
// Initialize the platform specific controllers
|
||||
ArmPlatformInitialize (MpId);
|
||||
|
||||
if (PerformanceMeasurementEnabled ()) {
|
||||
// Initialize the Timer Library to setup the Timer HW controller
|
||||
TimerConstructor ();
|
||||
// We cannot call yet the PerformanceLib because the HOB List has not been initialized
|
||||
StartTimeStamp = GetPerformanceCounter ();
|
||||
} else {
|
||||
StartTimeStamp = 0;
|
||||
}
|
||||
|
||||
// Data Cache enabled on Primary core when MMU is enabled.
|
||||
ArmDisableDataCache ();
|
||||
// Invalidate Data cache
|
||||
ArmInvalidateDataCache ();
|
||||
// Invalidate instruction cache
|
||||
ArmInvalidateInstructionCache ();
|
||||
// Enable Instruction Caches on all cores.
|
||||
ArmEnableInstructionCache ();
|
||||
|
||||
// Define the Global Variable region
|
||||
mGlobalVariableBase = GlobalVariableBase;
|
||||
|
||||
PrePiMain (UefiMemoryBase, StacksBase, GlobalVariableBase, StartTimeStamp);
|
||||
|
||||
// DXE Core should always load and never return
|
||||
ASSERT (FALSE);
|
||||
}
|
||||
|
|
@ -0,0 +1,77 @@
|
|||
/** @file
|
||||
*
|
||||
* Copyright (c) 2011-2012, ARM Limited. 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.
|
||||
*
|
||||
**/
|
||||
|
||||
#ifndef _PREPI_H_
|
||||
#define _PREPI_H_
|
||||
|
||||
#include <PiPei.h>
|
||||
|
||||
#include <Library/PcdLib.h>
|
||||
#include <Library/ArmLib.h>
|
||||
#include <Library/BaseMemoryLib.h>
|
||||
#include <Library/DebugLib.h>
|
||||
#include <Library/IoLib.h>
|
||||
#include <Library/MemoryAllocationLib.h>
|
||||
#include <Library/HobLib.h>
|
||||
#include <Library/SerialPortLib.h>
|
||||
#include <Library/ArmPlatformLib.h>
|
||||
|
||||
#define SerialPrint(txt) SerialPortWrite (txt, AsciiStrLen(txt)+1);
|
||||
|
||||
RETURN_STATUS
|
||||
EFIAPI
|
||||
TimerConstructor (
|
||||
VOID
|
||||
);
|
||||
|
||||
VOID
|
||||
PrePiMain (
|
||||
IN UINTN UefiMemoryBase,
|
||||
IN UINTN StacksBase,
|
||||
IN UINTN GlobalVariableBase,
|
||||
IN UINT64 StartTimeStamp
|
||||
);
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
MemoryPeim (
|
||||
IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
|
||||
IN UINT64 UefiMemorySize
|
||||
);
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
PlatformPeim (
|
||||
VOID
|
||||
);
|
||||
|
||||
// Either implemented by PrePiLib or by MemoryInitPei
|
||||
VOID
|
||||
BuildMemoryTypeInformationHob (
|
||||
VOID
|
||||
);
|
||||
|
||||
EFI_STATUS
|
||||
GetPlatformPpi (
|
||||
IN EFI_GUID *PpiGuid,
|
||||
OUT VOID **Ppi
|
||||
);
|
||||
|
||||
// Initialize the Architecture specific controllers
|
||||
VOID
|
||||
ArchInitialize (
|
||||
VOID
|
||||
);
|
||||
|
||||
#endif /* _PREPI_H_ */
|
||||
|
|
@ -0,0 +1,42 @@
|
|||
#/** @file
|
||||
#
|
||||
# Copyright (c) 2015, Linaro Ltd. 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.
|
||||
#
|
||||
#**/
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
.text 0x0 : {
|
||||
PROVIDE(__reloc_base = .);
|
||||
|
||||
*(.text .text*)
|
||||
*(.got .got*)
|
||||
*(.rodata .rodata*)
|
||||
*(.data .data*)
|
||||
|
||||
. = ALIGN(0x20);
|
||||
PROVIDE(__reloc_start = .);
|
||||
*(.rela .rela*)
|
||||
PROVIDE(__reloc_end = .);
|
||||
}
|
||||
.bss ALIGN(0x20) : { *(.bss .bss*) }
|
||||
|
||||
/DISCARD/ : {
|
||||
*(.note.GNU-stack)
|
||||
*(.gnu_debuglink)
|
||||
*(.interp)
|
||||
*(.dynamic)
|
||||
*(.dynsym)
|
||||
*(.dynstr)
|
||||
*(.hash)
|
||||
*(.comment)
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue