BeagleBoardPkg: create private PrePi implementation

Clone the PrePi implementation for BeagleBoardPkg, so we can start
removing some of the awkward optimizations that we'd rather not keep
in reference code. Note that we only clone the unicore ARM flavor,
which is all we need for BeagleBoard.

In the case of PrePi, it involves libraries included by the SEC
startup code that are exposed to DXE core via HOBs containing function
pointers, which forces us to keep the primary FV reserved in memory.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ard Biesheuvel 2017-11-30 14:52:31 +00:00
parent 6efd58aa5c
commit 917c56274c
10 changed files with 839 additions and 3 deletions

View File

@ -142,7 +142,6 @@
ReportStatusCodeLib|MdeModulePkg/Library/PeiDxeDebugLibReportStatusCode/PeiDxeDebugLibReportStatusCode.inf
UefiDecompressLib|MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf
ExtractGuidedSectionLib|EmbeddedPkg/Library/PrePiExtractGuidedSectionLib/PrePiExtractGuidedSectionLib.inf
LzmaDecompressLib|MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
PeCoffLib|MdePkg/Library/BasePeCoffLib/BasePeCoffLib.inf
@ -377,7 +376,10 @@
#
# SEC
#
ArmPlatformPkg/PrePi/PeiUniCore.inf
BeagleBoardPkg/PrePi/PeiUniCore.inf {
<LibraryClasses>
NULL|MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
}
#
# DXE

View File

@ -209,7 +209,7 @@ READ_STATUS = TRUE
READ_LOCK_CAP = TRUE
READ_LOCK_STATUS = TRUE
INF ArmPlatformPkg/PrePi/PeiUniCore.inf
INF BeagleBoardPkg/PrePi/PeiUniCore.inf
FILE FV_IMAGE = 9E21FD93-9C72-4c15-8C4B-E77F1DB2D792 {
SECTION GUIDED EE4E5898-3914-4259-9D6E-DC7BD79403CF PROCESSING_REQUIRED = TRUE {

View File

@ -0,0 +1,29 @@
/** @file
*
* Copyright (c) 2011 - 2013, 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 "PrePi.h"
VOID
ArchInitialize (
VOID
)
{
// Enable program flow prediction, if supported.
ArmEnableBranchPrediction ();
if (FixedPcdGet32 (PcdVFPEnabled)) {
ArmEnableVFP ();
}
}

View File

@ -0,0 +1,130 @@
//
// Copyright (c) 2011-2015, 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 <AsmMacroIoLib.h>
#include <Chipset/ArmV7.h>
ASM_FUNC(_ModuleEntryPoint)
// Do early platform specific actions
bl ASM_PFX(ArmPlatformPeiBootAction)
// Get ID of this CPU in Multicore system
bl ASM_PFX(ArmReadMpidr)
// Keep a copy of the MpId register value
mov r8, r0
_SetSVCMode:
// Enter SVC mode, Disable FIQ and IRQ
mov r1, #(CPSR_MODE_SVC | CPSR_IRQ | CPSR_FIQ)
msr CPSR_c, r1
// Check if we can install the stack at the top of the System Memory or if we need
// to install the stacks at the bottom of the Firmware Device (case the FD is located
// at the top of the DRAM)
_SystemMemoryEndInit:
ADRL (r1, mSystemMemoryEnd)
ldrd r2, r3, [r1]
teq r3, #0
moveq r1, r2
mvnne r1, #0
_SetupStackPosition:
// r1 = SystemMemoryTop
// Calculate Top of the Firmware Device
MOV32 (r2, FixedPcdGet32(PcdFdBaseAddress))
MOV32 (r3, FixedPcdGet32(PcdFdSize) - 1)
add r3, r3, r2 // r3 = FdTop = PcdFdBaseAddress + PcdFdSize
// UEFI Memory Size (stacks are allocated in this region)
MOV32 (r4, FixedPcdGet32(PcdSystemMemoryUefiRegionSize))
//
// Reserve the memory for the UEFI region (contain stacks on its top)
//
// Calculate how much space there is between the top of the Firmware and the Top of the System Memory
subs r0, r1, r3 // r0 = SystemMemoryTop - FdTop
bmi _SetupStack // Jump if negative (FdTop > SystemMemoryTop). Case when the PrePi is in XIP memory outside of the DRAM
cmp r0, r4
bge _SetupStack
// Case the top of stacks is the FdBaseAddress
mov r1, r2
_SetupStack:
// r1 contains the top of the stack (and the UEFI Memory)
// Because the 'push' instruction is equivalent to 'stmdb' (decrement before), we need to increment
// one to the top of the stack. We check if incrementing one does not overflow (case of DRAM at the
// top of the memory space)
adds r9, r1, #1
bcs _SetupOverflowStack
_SetupAlignedStack:
mov r1, r9
b _GetBaseUefiMemory
_SetupOverflowStack:
// Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE
// aligned (4KB)
MOV32 (r9, ~EFI_PAGE_MASK & 0xFFFFFFFF)
and r1, r1, r9
_GetBaseUefiMemory:
// Calculate the Base of the UEFI Memory
sub r9, r1, r4
_GetStackBase:
// r1 = The top of the Mpcore Stacks
// Stack for the primary core = PrimaryCoreStack
MOV32 (r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
sub r10, r1, r2
// Stack for the secondary core = Number of Cores - 1
MOV32 (r1, (FixedPcdGet32(PcdCoreCount) - 1) * FixedPcdGet32(PcdCPUCoreSecondaryStackSize))
sub r10, r10, r1
// r10 = The base of the MpCore Stacks (primary stack & secondary stacks)
mov r0, r10
mov r1, r8
//ArmPlatformStackSet(StackBase, MpId, PrimaryStackSize, SecondaryStackSize)
MOV32 (r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
MOV32 (r3, FixedPcdGet32(PcdCPUCoreSecondaryStackSize))
bl ASM_PFX(ArmPlatformStackSet)
// Is it the Primary Core ?
mov r0, r8
bl ASM_PFX(ArmPlatformIsPrimaryCore)
cmp r0, #1
bne _PrepareArguments
_PrepareArguments:
mov r0, r8
mov r1, r9
mov r2, r10
mov r3, sp
// Move sec startup address into a data register
// Ensure we're jumping to FV version of the code (not boot remapped alias)
ldr r4, =ASM_PFX(CEntryPoint)
// Jump to PrePiCore C code
// r0 = MpId
// r1 = UefiMemoryBase
// r2 = StacksBase
blx r4
_NeverReturn:
b _NeverReturn

View File

@ -0,0 +1,148 @@
//
// Copyright (c) 2011-2015, 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 <AutoGen.h>
#include <Chipset/ArmV7.h>
INCLUDE AsmMacroIoLib.inc
IMPORT CEntryPoint
IMPORT ArmPlatformIsPrimaryCore
IMPORT ArmReadMpidr
IMPORT ArmPlatformPeiBootAction
IMPORT ArmPlatformStackSet
IMPORT mSystemMemoryEnd
EXPORT _ModuleEntryPoint
PRESERVE8
AREA PrePiCoreEntryPoint, CODE, READONLY
StartupAddr DCD CEntryPoint
_ModuleEntryPoint
// Do early platform specific actions
bl ArmPlatformPeiBootAction
// Get ID of this CPU in Multicore system
bl ArmReadMpidr
// Keep a copy of the MpId register value
mov r8, r0
_SetSVCMode
// Enter SVC mode, Disable FIQ and IRQ
mov r1, #(CPSR_MODE_SVC :OR: CPSR_IRQ :OR: CPSR_FIQ)
msr CPSR_c, r1
// Check if we can install the stack at the top of the System Memory or if we need
// to install the stacks at the bottom of the Firmware Device (case the FD is located
// at the top of the DRAM)
_SystemMemoryEndInit
adrll r1, mSystemMemoryEnd
ldrd r2, r3, [r1]
teq r3, #0
moveq r1, r2
mvnne r1, #0
_SetupStackPosition
// r1 = SystemMemoryTop
// Calculate Top of the Firmware Device
mov32 r2, FixedPcdGet32(PcdFdBaseAddress)
mov32 r3, FixedPcdGet32(PcdFdSize)
sub r3, r3, #1
add r3, r3, r2 // r3 = FdTop = PcdFdBaseAddress + PcdFdSize
// UEFI Memory Size (stacks are allocated in this region)
mov32 r4, FixedPcdGet32(PcdSystemMemoryUefiRegionSize)
//
// Reserve the memory for the UEFI region (contain stacks on its top)
//
// Calculate how much space there is between the top of the Firmware and the Top of the System Memory
subs r0, r1, r3 // r0 = SystemMemoryTop - FdTop
bmi _SetupStack // Jump if negative (FdTop > SystemMemoryTop). Case when the PrePi is in XIP memory outside of the DRAM
cmp r0, r4
bge _SetupStack
// Case the top of stacks is the FdBaseAddress
mov r1, r2
_SetupStack
// r1 contains the top of the stack (and the UEFI Memory)
// Because the 'push' instruction is equivalent to 'stmdb' (decrement before), we need to increment
// one to the top of the stack. We check if incrementing one does not overflow (case of DRAM at the
// top of the memory space)
adds r9, r1, #1
bcs _SetupOverflowStack
_SetupAlignedStack
mov r1, r9
b _GetBaseUefiMemory
_SetupOverflowStack
// Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE
// aligned (4KB)
mov32 r9, EFI_PAGE_MASK
and r9, r9, r1
sub r1, r1, r9
_GetBaseUefiMemory
// Calculate the Base of the UEFI Memory
sub r9, r1, r4
_GetStackBase
// r1 = The top of the Mpcore Stacks
// Stack for the primary core = PrimaryCoreStack
mov32 r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize)
sub r10, r1, r2
// Stack for the secondary core = Number of Cores - 1
mov32 r1, (FixedPcdGet32(PcdCoreCount) - 1) * FixedPcdGet32(PcdCPUCoreSecondaryStackSize)
sub r10, r10, r1
// r10 = The base of the MpCore Stacks (primary stack & secondary stacks)
mov r0, r10
mov r1, r8
//ArmPlatformStackSet(StackBase, MpId, PrimaryStackSize, SecondaryStackSize)
mov32 r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize)
mov32 r3, FixedPcdGet32(PcdCPUCoreSecondaryStackSize)
bl ArmPlatformStackSet
// Is it the Primary Core ?
mov r0, r8
bl ArmPlatformIsPrimaryCore
cmp r0, #1
bne _PrepareArguments
_PrepareArguments
mov r0, r8
mov r1, r9
mov r2, r10
// Move sec startup address into a data register
// Ensure we're jumping to FV version of the code (not boot remapped alias)
ldr r4, StartupAddr
// Jump to PrePiCore C code
// r0 = MpId
// r1 = UefiMemoryBase
// r2 = StacksBase
blx r4
_NeverReturn
b _NeverReturn
END

View File

@ -0,0 +1,103 @@
/** @file
LZMA Decompress Library header file
Copyright (c) 2006 - 2010, 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.
**/
#ifndef __LZMA_DECOMPRESS_H___
#define __LZMA_DECOMPRESS_H___
/**
Examines a GUIDed section and returns the size of the decoded buffer and the
size of an scratch buffer required to actually decode the data in a GUIDed section.
Examines a GUIDed section specified by InputSection.
If GUID for InputSection does not match the GUID that this handler supports,
then RETURN_UNSUPPORTED is returned.
If the required information can not be retrieved from InputSection,
then RETURN_INVALID_PARAMETER is returned.
If the GUID of InputSection does match the GUID that this handler supports,
then the size required to hold the decoded buffer is returned in OututBufferSize,
the size of an optional scratch buffer is returned in ScratchSize, and the Attributes field
from EFI_GUID_DEFINED_SECTION header of InputSection is returned in SectionAttribute.
If InputSection is NULL, then ASSERT().
If OutputBufferSize is NULL, then ASSERT().
If ScratchBufferSize is NULL, then ASSERT().
If SectionAttribute is NULL, then ASSERT().
@param[in] InputSection A pointer to a GUIDed section of an FFS formatted file.
@param[out] OutputBufferSize A pointer to the size, in bytes, of an output buffer required
if the buffer specified by InputSection were decoded.
@param[out] ScratchBufferSize A pointer to the size, in bytes, required as scratch space
if the buffer specified by InputSection were decoded.
@param[out] SectionAttribute A pointer to the attributes of the GUIDed section. See the Attributes
field of EFI_GUID_DEFINED_SECTION in the PI Specification.
@retval RETURN_SUCCESS The information about InputSection was returned.
@retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports.
@retval RETURN_INVALID_PARAMETER The information can not be retrieved from the section specified by InputSection.
**/
RETURN_STATUS
EFIAPI
LzmaGuidedSectionGetInfo (
IN CONST VOID *InputSection,
OUT UINT32 *OutputBufferSize,
OUT UINT32 *ScratchBufferSize,
OUT UINT16 *SectionAttribute
);
/**
Decompress a LZAM compressed GUIDed section into a caller allocated output buffer.
Decodes the GUIDed section specified by InputSection.
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__

View File

@ -0,0 +1,39 @@
/** @file
*
* Copyright (c) 2011, ARM Limited. All rights reserved.
* Copyright (c) 2017, Linaro, Ltd. 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 "PrePi.h"
VOID
PrimaryMain (
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINT64 StartTimeStamp
)
{
PrePiMain (UefiMemoryBase, StacksBase, StartTimeStamp);
// We must never return
ASSERT(FALSE);
}
VOID
SecondaryMain (
IN UINTN MpId
)
{
// We must never get into this function on UniCore system
ASSERT(FALSE);
}

View File

@ -0,0 +1,104 @@
#/** @file
#
# (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
# Copyright (c) 2011-2017, ARM Ltd. All rights reserved.<BR>
# Copyright (c) 2017, 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.
#
#**/
[Defines]
INF_VERSION = 0x0001001A
BASE_NAME = BeagleBoardPrePiUniCore
FILE_GUID = 8a5dc3de-fe31-4ad9-9c93-dd73626932e7
MODULE_TYPE = SEC
VERSION_STRING = 1.0
[Sources]
PrePi.c
MainUniCore.c
[Sources.ARM]
Arm/ArchPrePi.c
Arm/ModuleEntryPoint.S | GCC
Arm/ModuleEntryPoint.asm | RVCT
[Packages]
ArmPkg/ArmPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
EmbeddedPkg/EmbeddedPkg.dec
MdeModulePkg/MdeModulePkg.dec
MdePkg/MdePkg.dec
[LibraryClasses]
ArmLib
ArmPlatformLib
ArmPlatformStackLib
BaseLib
DebugLib
DebugAgentLib
ExtractGuidedSectionLib
HobLib
IoLib
MemoryAllocationLib
MemoryInitPeiLib
PeCoffGetEntryPointLib
PlatformPeiLib
PrePiHobListPointerLib
PrePiLib
SerialPortLib
TimerLib
[Ppis]
gArmMpCoreInfoPpiGuid
[Guids]
gArmMpCoreInfoGuid
gEfiFirmwarePerformanceGuid
[FeaturePcd]
gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
[FixedPcd]
gArmTokenSpaceGuid.PcdVFPEnabled
gArmTokenSpaceGuid.PcdFdBaseAddress
gArmTokenSpaceGuid.PcdFdSize
gArmTokenSpaceGuid.PcdFvBaseAddress
gArmTokenSpaceGuid.PcdFvSize
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize
gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize
gArmPlatformTokenSpaceGuid.PcdCoreCount
gEmbeddedTokenSpaceGuid.PcdPrePiCpuMemorySize
gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIReclaimMemory
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIMemoryNVS
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiReservedMemoryType
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesData
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesCode
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiBootServicesCode
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiBootServicesData
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiLoaderCode
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiLoaderData
[Pcd]
gArmTokenSpaceGuid.PcdSystemMemoryBase
gArmTokenSpaceGuid.PcdSystemMemorySize

View File

@ -0,0 +1,185 @@
/** @file
*
* Copyright (c) 2011-2017, ARM Limited. All rights reserved.
* Copyright (c) 2017, Linaro, Ltd. 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/DebugAgentLib.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 <Ppi/SecPerformance.h>
#include <Guid/LzmaDecompress.h>
#include "PrePi.h"
#include "LzmaDecompress.h"
#define IS_XIP() (((UINT64)FixedPcdGet64 (PcdFdBaseAddress) > mSystemMemoryEnd) || \
((FixedPcdGet64 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) < FixedPcdGet64 (PcdSystemMemoryBase)))
UINT64 mSystemMemoryEnd = FixedPcdGet64(PcdSystemMemoryBase) +
FixedPcdGet64(PcdSystemMemorySize) - 1;
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 UINT64 StartTimeStamp
)
{
EFI_HOB_HANDOFF_INFO_TABLE* HobList;
EFI_STATUS Status;
CHAR8 Buffer[100];
UINTN CharCount;
UINTN StacksSize;
FIRMWARE_SEC_PERFORMANCE Performance;
// If ensure the FD is either part of the System Memory or totally outside of the System Memory (XIP)
ASSERT (IS_XIP() ||
((FixedPcdGet64 (PcdFdBaseAddress) >= FixedPcdGet64 (PcdSystemMemoryBase)) &&
((UINT64)(FixedPcdGet64 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) <= (UINT64)mSystemMemoryEnd)));
// 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);
// Initialize the Debug Agent for Source Level Debugging
InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);
SaveAndSetDebugTimerInterrupt (TRUE);
// 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);
StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
BuildStackHob (StacksBase, StacksSize);
//TODO: Call CpuPei as a library
BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
// Store timer value logged at the beginning of firmware image execution
Performance.ResetEnd = GetTimeInNanoSecond (StartTimeStamp);
// Build SEC Performance Data Hob
BuildGuidDataHob (&gEfiFirmwarePerformanceGuid, &Performance, sizeof (Performance));
// 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.
ProcessLibraryConstructorList ();
// 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
)
{
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 ();
PrimaryMain (UefiMemoryBase, StacksBase, StartTimeStamp);
// DXE Core should always load and never return
ASSERT (FALSE);
}

View File

@ -0,0 +1,96 @@
/** @file
*
* Copyright (c) 2011-2015, 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);
extern UINT64 mSystemMemoryEnd;
RETURN_STATUS
EFIAPI
TimerConstructor (
VOID
);
VOID
PrePiMain (
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINT64 StartTimeStamp
);
EFI_STATUS
EFIAPI
MemoryPeim (
IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
IN UINT64 UefiMemorySize
);
EFI_STATUS
EFIAPI
PlatformPeim (
VOID
);
VOID
PrimaryMain (
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINT64 StartTimeStamp
);
VOID
SecondaryMain (
IN UINTN MpId
);
// 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
);
VOID
EFIAPI
ProcessLibraryConstructorList (
VOID
);
#endif /* _PREPI_H_ */