tyler.durden/audk
1
0
Fork 0
mirror of https://github.com/acidanthera/audk.git synced 2025-07-27 15:44:04 +02:00
Code Issues Packages Projects Releases Wiki Activity

• Set the default value of PcdDxeIplSwitchToLongMode to TRUE.

Browse Source 
•	Make access to PcdDxeIplSwitchToLongMode to Ia32 specific code.
•	Introduce another feature flag named PcdDxeIplBuildShareCodeHobs to define whether to build hobs to DXE core to share code.
•	Remove the #progma bug 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2026 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qhuang8 2006-11-28 07:59:59 +00:00
parent 2109b16ef8
commit 657d3918fe
8 changed files with 235 additions and 294 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
EdkModulePkg/Core/DxeIplPeim/DxeIpl.h
View File

@ -27,38 +27,6 @@ Abstract:
extern BOOLEAN gInMemory; extern BOOLEAN gInMemory;
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
SwitchIplStacks (
IN SWITCH_STACK_ENTRY_POINT EntryPoint,
IN VOID *Context1, OPTIONAL
IN VOID *Context2, OPTIONAL
IN VOID *NewStack,
IN VOID *NewBsp
);
EFI_STATUS EFI_STATUS
PeiFindFile ( PeiFindFile (
IN UINT8 Type, IN UINT8 Type,
@ -79,12 +47,6 @@ PeiLoadFile (
; ;
EFI_STATUS
CreateArchSpecificHobs (
OUT EFI_PHYSICAL_ADDRESS *BspStore
)
;
EFI_STATUS EFI_STATUS
GetImageReadFunction ( GetImageReadFunction (
IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
@ -124,6 +86,12 @@ DxeLoadCore (
IN EFI_PEI_HOB_POINTERS HobList IN EFI_PEI_HOB_POINTERS HobList
); );
VOID
HandOffToDxeCore (
IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN EFI_PEI_HOB_POINTERS HobList
);
EFI_STATUS EFI_STATUS
PeiProcessFile ( PeiProcessFile (
IN UINT16 SectionType, IN UINT16 SectionType,
@ -139,17 +107,6 @@ PeimInitializeDxeIpl (
IN EFI_PEI_SERVICES **PeiServices IN EFI_PEI_SERVICES **PeiServices
); );
EFI_STATUS
PeiLoadx64File (
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader,
IN VOID *Pe32Data,
IN EFI_MEMORY_TYPE MemoryType,
OUT EFI_PHYSICAL_ADDRESS *ImageAddress,
OUT UINT64 *ImageSize,
OUT EFI_PHYSICAL_ADDRESS *EntryPoint
)
;
EFI_PHYSICAL_ADDRESS EFI_PHYSICAL_ADDRESS
CreateIdentityMappingPageTables ( CreateIdentityMappingPageTables (
IN UINT32 NumberOfProcessorPhysicalAddressBits IN UINT32 NumberOfProcessorPhysicalAddressBits

16
EdkModulePkg/Core/DxeIplPeim/DxeIpl.msa
View File

@ -75,19 +75,15 @@
<Filename>DxeLoad.c</Filename> <Filename>DxeLoad.c</Filename>
<Filename>DxeIpl.h</Filename> <Filename>DxeIpl.h</Filename>
<Filename>DxeIpl.dxs</Filename> <Filename>DxeIpl.dxs</Filename>
<Filename SupArchList="IA32">Ia32/ImageRead.c</Filename> <Filename SupArchList="IA32 X64 EBC">Ia32/ImageRead.c</Filename>
<Filename SupArchList="IA32">Ia32/DxeLoadFunc.c</Filename> <Filename SupArchList="IA32">Ia32/DxeLoadFunc.c</Filename>
<Filename SupArchList="IA32">Ia32/LongMode.asm</Filename> <Filename SupArchList="IA32">Ia32/LongMode.asm</Filename>
<Filename ToolChainFamily="GCC" SupArchList="IA32">Ia32/LongMode.S</Filename> <Filename ToolChainFamily="GCC" SupArchList="IA32">Ia32/LongMode.S</Filename>
<Filename SupArchList="IA32">Ia32/VirtualMemory.c</Filename> <Filename SupArchList="IA32">Ia32/VirtualMemory.c</Filename>
<Filename SupArchList="IA32">Ia32/VirtualMemory.h</Filename> <Filename SupArchList="IA32">Ia32/VirtualMemory.h</Filename>
<Filename SupArchList="X64">Ia32/ImageRead.c</Filename> <Filename SupArchList="X64 EBC">X64/DxeLoadFunc.c</Filename>
<Filename SupArchList="X64">Ia32/DxeLoadFunc.c</Filename>
<Filename SupArchList="IPF">ipf/ImageRead.c</Filename> <Filename SupArchList="IPF">ipf/ImageRead.c</Filename>
<Filename SupArchList="IPF">ipf/DxeLoadFunc.c</Filename> <Filename SupArchList="IPF">ipf/DxeLoadFunc.c</Filename>
<Filename SupArchList="EBC">Ia32/ImageRead.c</Filename>
<Filename SupArchList="EBC">Ia32/DxeLoadFunc.c</Filename>
<Filename SupArchList="X64 IPF EBC">Non-existing.c</Filename>
</SourceFiles> </SourceFiles>
<PackageDependencies> <PackageDependencies>
<Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/> <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
@ -143,9 +139,15 @@
<PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED"> <PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED">
<C_Name>PcdDxeIplSwitchToLongMode</C_Name> <C_Name>PcdDxeIplSwitchToLongMode</C_Name>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName> <TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DefaultValue>FALSE</DefaultValue> <DefaultValue>TRUE</DefaultValue>
<HelpText>If this feature is enabled, then the DXE IPL will load a 64-bit DxeCore.</HelpText> <HelpText>If this feature is enabled, then the DXE IPL will load a 64-bit DxeCore.</HelpText>
</PcdEntry> </PcdEntry>
<PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED">
<C_Name>PcdDxeIplBuildShareCodeHobs</C_Name>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DefaultValue>TRUE</DefaultValue>
<HelpText>If this feature is enabled, DXE IPL will build a series of HOBs to share code with DXE Core.</HelpText>
</PcdEntry>
<PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED"> <PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED">
<C_Name>PcdDxeIplSupportEfiDecompress</C_Name> <C_Name>PcdDxeIplSupportEfiDecompress</C_Name>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName> <TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>

87
EdkModulePkg/Core/DxeIplPeim/DxeLoad.c
View File

@ -22,10 +22,6 @@ Abstract:
#include "DxeIpl.h" #include "DxeIpl.h"
#ifndef __GNUC__
#pragma warning( disable : 4305 )
#endif
BOOLEAN gInMemory = FALSE; BOOLEAN gInMemory = FALSE;
// //
@ -151,9 +147,6 @@ Returns:
--*/ --*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS TopOfStack;
EFI_PHYSICAL_ADDRESS BaseOfStack;
EFI_PHYSICAL_ADDRESS BspStore;
EFI_GUID DxeCoreFileName; EFI_GUID DxeCoreFileName;
EFI_GUID FirmwareFileName; EFI_GUID FirmwareFileName;
VOID *Pe32Data; VOID *Pe32Data;
@ -165,13 +158,8 @@ Returns:
EFI_BOOT_MODE BootMode; EFI_BOOT_MODE BootMode;
EFI_PEI_RECOVERY_MODULE_PPI *PeiRecovery; EFI_PEI_RECOVERY_MODULE_PPI *PeiRecovery;
EFI_PEI_S3_RESUME_PPI *S3Resume; EFI_PEI_S3_RESUME_PPI *S3Resume;
EFI_PHYSICAL_ADDRESS PageTables;
// PERF_START (PeiServices, L"DxeIpl", NULL, 0); // PERF_START (PeiServices, L"DxeIpl", NULL, 0);
TopOfStack = 0;
BaseOfStack = 0;
BspStore = 0;
PageTables = 0;
// //
// if in S3 Resume, restore configure // if in S3 Resume, restore configure
@ -217,17 +205,6 @@ Returns:
PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderProtocol (); PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderProtocol ();
ASSERT (PeiEfiPeiPeCoffLoader != NULL); ASSERT (PeiEfiPeiPeCoffLoader != NULL);
//
// Allocate 128KB for the Stack
//
PeiServicesAllocatePages (EfiBootServicesData, EFI_SIZE_TO_PAGES (STACK_SIZE), &BaseOfStack);
ASSERT (BaseOfStack != 0);
//
// Add architecture-specifc HOBs (including the BspStore HOB)
//
Status = CreateArchSpecificHobs (&BspStore);
ASSERT_EFI_ERROR (Status);
// //
// Find the EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE type compressed Firmware Volume file // Find the EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE type compressed Firmware Volume file
@ -290,44 +267,8 @@ Returns:
EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_CORE_PC_HANDOFF_TO_NEXT EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_CORE_PC_HANDOFF_TO_NEXT
); );
DEBUG ((EFI_D_INFO, "DXE Core Entry\n")); if (FeaturePcdGet (PcdDxeIplBuildShareCodeHobs)) {
if (FeaturePcdGet(PcdDxeIplSwitchToLongMode)) { if (FeaturePcdGet (PcdDxeIplSupportEfiDecompress)) {
//
// Compute the top of the stack we were allocated, which is used to load X64 dxe core.
// Pre-allocate a 32 bytes which confroms to x64 calling convention.
//
// The first four parameters to a function are passed in rcx, rdx, r8 and r9.
// Any further parameters are pushed on the stack. Furthermore, space (4 * 8bytes) for the
// register parameters is reserved on the stack, in case the called function
// wants to spill them; this is important if the function is variadic.
//
TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - 32;
//
// X64 Calling Conventions requires that the stack must be aligned to 16 bytes
//
TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, 16);
//
// Load the GDT of Go64. Since the GDT of 32-bit Tiano locates in the BS_DATA
// memory, it may be corrupted when copying FV to high-end memory
//
LoadGo64Gdt();
//
// Limit to 36 bits of addressing for debug. Should get it from CPU
//
PageTables = CreateIdentityMappingPageTables (36);
//
// Go to Long Mode. Interrupts will not get turned on until the CPU AP is loaded.
// Call x64 drivers passing in single argument, a pointer to the HOBs.
//
ActivateLongMode (
PageTables,
(EFI_PHYSICAL_ADDRESS)(UINTN)(HobList.Raw),
TopOfStack,
0x00000000,
DxeCoreEntryPoint
);
} else {
// //
// Add HOB for the EFI Decompress Protocol // Add HOB for the EFI Decompress Protocol
// //
@ -336,7 +277,8 @@ Returns:
(VOID *)&gEfiDecompress, (VOID *)&gEfiDecompress,
sizeof (gEfiDecompress) sizeof (gEfiDecompress)
); );
}
if (FeaturePcdGet (PcdDxeIplSupportTianoDecompress)) {
// //
// Add HOB for the Tiano Decompress Protocol // Add HOB for the Tiano Decompress Protocol
// //
@ -345,7 +287,8 @@ Returns:
(VOID *)&gTianoDecompress, (VOID *)&gTianoDecompress,
sizeof (gTianoDecompress) sizeof (gTianoDecompress)
); );
}
if (FeaturePcdGet (PcdDxeIplSupportCustomDecompress)) {
// //
// Add HOB for the user customized Decompress Protocol // Add HOB for the user customized Decompress Protocol
// //
@ -354,6 +297,7 @@ Returns:
(VOID *)&gCustomDecompress, (VOID *)&gCustomDecompress,
sizeof (gCustomDecompress) sizeof (gCustomDecompress)
); );
}
// //
// Add HOB for the PE/COFF Loader Protocol // Add HOB for the PE/COFF Loader Protocol
@ -363,21 +307,10 @@ Returns:
(VOID *)&PeiEfiPeiPeCoffLoader, (VOID *)&PeiEfiPeiPeCoffLoader,
sizeof (VOID *) sizeof (VOID *)
); );
//
// Compute the top of the stack we were allocated. Pre-allocate a UINTN
// for safety.
//
TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT;
TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
SwitchIplStacks (
(SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
HobList.Raw,
NULL,
(VOID *) (UINTN) TopOfStack,
(VOID *) (UINTN) BspStore
);
} }
DEBUG ((EFI_D_INFO, "DXE Core Entry\n"));
HandOffToDxeCore (DxeCoreEntryPoint, HobList);
// //
// If we get here, then the DXE Core returned. This is an error // If we get here, then the DXE Core returned. This is an error
// Dxe Core should not return. // Dxe Core should not return.

121
EdkModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
View File

@ -21,66 +21,69 @@ Abstract:
#include "DxeIpl.h" #include "DxeIpl.h"
EFI_STATUS
CreateArchSpecificHobs (
OUT EFI_PHYSICAL_ADDRESS *BspStore
)
/*++
Routine Description:
Creates architecture-specific HOBs.
Note: New parameters should NOT be added for any HOBs that are added to this
function. BspStore is a special case because it is required for the
call to SwitchStacks() in DxeLoad().
Arguments:
BspStore - The address of the BSP Store for those architectures that need
it. Otherwise 0.
Returns:
EFI_SUCCESS - The HOBs were created successfully.
--*/
{
*BspStore = 0;
return EFI_SUCCESS;
}
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID VOID
EFIAPI HandOffToDxeCore (
SwitchIplStacks ( IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN SWITCH_STACK_ENTRY_POINT EntryPoint, IN EFI_PEI_HOB_POINTERS HobList
IN VOID *Context1, OPTIONAL
IN VOID *Context2, OPTIONAL
IN VOID *NewStack,
IN VOID *NewBsp
) )
{ {
SwitchStack (EntryPoint, Context1, Context2, NewStack); EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS BaseOfStack;
EFI_PHYSICAL_ADDRESS TopOfStack;
EFI_PHYSICAL_ADDRESS PageTables;
Status = PeiServicesAllocatePages (EfiBootServicesData, EFI_SIZE_TO_PAGES (STACK_SIZE), &BaseOfStack);
ASSERT_EFI_ERROR (Status);
if (FeaturePcdGet(PcdDxeIplSwitchToLongMode)) {
//
// Compute the top of the stack we were allocated, which is used to load X64 dxe core.
// Pre-allocate a 32 bytes which confroms to x64 calling convention.
//
// The first four parameters to a function are passed in rcx, rdx, r8 and r9.
// Any further parameters are pushed on the stack. Furthermore, space (4 * 8bytes) for the
// register parameters is reserved on the stack, in case the called function
// wants to spill them; this is important if the function is variadic.
//
TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - 32;
//
// X64 Calling Conventions requires that the stack must be aligned to 16 bytes
//
TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, 16);
//
// Load the GDT of Go64. Since the GDT of 32-bit Tiano locates in the BS_DATA
// memory, it may be corrupted when copying FV to high-end memory
//
LoadGo64Gdt();
//
// Limit to 36 bits of addressing for debug. Should get it from CPU
//
PageTables = CreateIdentityMappingPageTables (36);
//
// Go to Long Mode. Interrupts will not get turned on until the CPU AP is loaded.
// Call x64 drivers passing in single argument, a pointer to the HOBs.
//
ActivateLongMode (
PageTables,
(EFI_PHYSICAL_ADDRESS)(UINTN)(HobList.Raw),
TopOfStack,
0x00000000,
DxeCoreEntryPoint
);
} else {
//
// Compute the top of the stack we were allocated. Pre-allocate a UINTN
// for safety.
//
TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT;
TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
SwitchStack (
(SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
HobList.Raw,
NULL,
(VOID *) (UINTN) TopOfStack
);
}
} }

105
EdkModulePkg/Core/DxeIplPeim/Ipf/DxeLoadFunc.c
View File

@ -21,91 +21,44 @@ Abstract:
#include "DxeIpl.h" #include "DxeIpl.h"
EFI_STATUS VOID
CreateArchSpecificHobs ( HandOffToDxeCore (
OUT EFI_PHYSICAL_ADDRESS *BspStore IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN EFI_PEI_HOB_POINTERS HobList
) )
/*++
Routine Description:
Creates architecture-specific HOBs.
Note: New parameters should NOT be added for any HOBs that are added to this
function. BspStore is a special case because it is required for the
call to SwitchStacks() in DxeLoad().
Arguments:
BspStore - The address of the BSP Store for those architectures that need
it. Otherwise 0.
Returns:
EFI_SUCCESS - The HOBs were created successfully.
--*/
{ {
EFI_STATUS Status; VOID *BaseOfStack;
VOID *TopOfStack;
VOID *BspStore;
Status = EFI_SUCCESS; //
// Allocate 128KB for the Stack
ASSERT (NULL != BspStore); //
BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
ASSERT (BaseOfStack != NULL);
// //
// Allocate 16KB for the BspStore // Allocate 16KB for the BspStore
// //
Status = PeiServicesAllocatePages (EfiBootServicesData, EFI_SIZE_TO_PAGES (BSP_STORE_SIZE), BspStore); BspStore = AllocatePages (EFI_SIZE_TO_PAGES (BSP_STORE_SIZE));
if (EFI_ERROR (Status)) { ASSERT (BspStore != NULL);
return Status; //
} // Build BspStoreHob
//
BuildBspStoreHob ((EFI_PHYSICAL_ADDRESS) (UINTN) BspStore, BSP_STORE_SIZE, EfiBootServicesData);
BuildBspStoreHob ( //
*BspStore, // Compute the top of the stack we were allocated. Pre-allocate a UINTN
BSP_STORE_SIZE, // for safety.
EfiBootServicesData //
); TopOfStack = (VOID *) ((UINTN) BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);
TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
return EFI_SUCCESS;
}
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
SwitchIplStacks (
IN SWITCH_STACK_ENTRY_POINT EntryPoint,
IN VOID *Context1, OPTIONAL
IN VOID *Context2, OPTIONAL
IN VOID *NewStack,
IN VOID *NewBsp
)
{
AsmSwitchStackAndBackingStore ( AsmSwitchStackAndBackingStore (
EntryPoint, (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
Context1, HobList.Raw,
Context2, NULL,
NewStack, TopOfStack,
NewBsp BspStore
); );
} }

52
EdkModulePkg/Core/DxeIplPeim/X64/DxeLoadFunc.c Normal file
View File

@ -0,0 +1,52 @@
/*++
Copyright (c) 2006, Intel Corporation
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.
Module Name:
DxeLoadFunc.c
Abstract:
Ia32-specifc functionality for DxeLoad.
--*/
#include "DxeIpl.h"
VOID
HandOffToDxeCore (
IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN EFI_PEI_HOB_POINTERS HobList
)
{
VOID *BaseOfStack;
VOID *TopOfStack;
//
// Allocate 128KB for the Stack
//
BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
ASSERT (BaseOfStack != NULL);
//
// Compute the top of the stack we were allocated. Pre-allocate a UINTN
// for safety.
//
TopOfStack = (VOID *) ((UINTN) BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);
TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
SwitchStack (
(SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
HobList.Raw,
NULL,
TopOfStack
);
}

32
EdkModulePkg/EdkModulePkg.fpd
View File

@ -1018,6 +1018,14 @@
<MaxDatumSize>1</MaxDatumSize> <MaxDatumSize>1</MaxDatumSize>
<Value>TRUE</Value> <Value>TRUE</Value>
</PcdData> </PcdData>
<PcdData ItemType="FEATURE_FLAG">
<C_Name>PcdDxeIplBuildShareCodeHobs</C_Name>
<Token>0x0001003c</Token>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DatumType>BOOLEAN</DatumType>
<MaxDatumSize>1</MaxDatumSize>
<Value>TRUE</Value>
</PcdData>
</PcdBuildDefinition> </PcdBuildDefinition>
<ModuleSaBuildOptions> <ModuleSaBuildOptions>
<FvBinding>NULL</FvBinding> <FvBinding>NULL</FvBinding>
@ -6684,6 +6692,14 @@
<MaxDatumSize>1</MaxDatumSize> <MaxDatumSize>1</MaxDatumSize>
<Value>TRUE</Value> <Value>TRUE</Value>
</PcdData> </PcdData>
<PcdData ItemType="FEATURE_FLAG">
<C_Name>PcdDxeIplBuildShareCodeHobs</C_Name>
<Token>0x0001003c</Token>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DatumType>BOOLEAN</DatumType>
<MaxDatumSize>1</MaxDatumSize>
<Value>TRUE</Value>
</PcdData>
</PcdBuildDefinition> </PcdBuildDefinition>
<ModuleSaBuildOptions> <ModuleSaBuildOptions>
<FvBinding>NULL</FvBinding> <FvBinding>NULL</FvBinding>
@ -11131,6 +11147,14 @@
<MaxDatumSize>1</MaxDatumSize> <MaxDatumSize>1</MaxDatumSize>
<Value>TRUE</Value> <Value>TRUE</Value>
</PcdData> </PcdData>
<PcdData ItemType="FEATURE_FLAG">
<C_Name>PcdDxeIplBuildShareCodeHobs</C_Name>
<Token>0x0001003c</Token>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DatumType>BOOLEAN</DatumType>
<MaxDatumSize>1</MaxDatumSize>
<Value>TRUE</Value>
</PcdData>
</PcdBuildDefinition> </PcdBuildDefinition>
<ModuleSaBuildOptions> <ModuleSaBuildOptions>
<FvBinding>NULL</FvBinding> <FvBinding>NULL</FvBinding>
@ -15582,6 +15606,14 @@
<MaxDatumSize>1</MaxDatumSize> <MaxDatumSize>1</MaxDatumSize>
<Value>TRUE</Value> <Value>TRUE</Value>
</PcdData> </PcdData>
<PcdData ItemType="FEATURE_FLAG">
<C_Name>PcdDxeIplBuildShareCodeHobs</C_Name>
<Token>0x0001003c</Token>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DatumType>BOOLEAN</DatumType>
<MaxDatumSize>1</MaxDatumSize>
<Value>TRUE</Value>
</PcdData>
</PcdBuildDefinition> </PcdBuildDefinition>
<ModuleSaBuildOptions> <ModuleSaBuildOptions>
<FvBinding>NULL</FvBinding> <FvBinding>NULL</FvBinding>

13
EdkModulePkg/EdkModulePkg.spd
View File

@ -1247,14 +1247,23 @@
<DefaultValue>FALSE</DefaultValue> <DefaultValue>FALSE</DefaultValue>
<HelpText>Whether VGA decoding is enabled on this platform so we should avoid those aliased resources</HelpText> <HelpText>Whether VGA decoding is enabled on this platform so we should avoid those aliased resources</HelpText>
</PcdEntry> </PcdEntry>
<PcdEntry> <PcdEntry SupArchList="IA32">
<C_Name>PcdDxeIplSwitchToLongMode</C_Name> <C_Name>PcdDxeIplSwitchToLongMode</C_Name>
<Token>0x0001003b</Token> <Token>0x0001003b</Token>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName> <TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DatumType>BOOLEAN</DatumType> <DatumType>BOOLEAN</DatumType>
<ValidUsage>FEATURE_FLAG</ValidUsage> <ValidUsage>FEATURE_FLAG</ValidUsage>
<DefaultValue>FALSE</DefaultValue> <DefaultValue>TRUE</DefaultValue>
<HelpText>If this feature is enabled, then the DXE IPL will load a 64-bit DxeCore.</HelpText> <HelpText>If this feature is enabled, then the DXE IPL will load a 64-bit DxeCore.</HelpText>
</PcdEntry> </PcdEntry>
<PcdEntry>
<C_Name>PcdDxeIplBuildShareCodeHobs</C_Name>
<Token>0x0001003c</Token>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DatumType>BOOLEAN</DatumType>
<ValidUsage>FEATURE_FLAG</ValidUsage>
<DefaultValue>FALSE</DefaultValue>
<HelpText>If this feature is enabled, DXE IPL will build a series of HOBs to share code with DXE Core.</HelpText>
</PcdEntry>
</PcdDeclarations> </PcdDeclarations>
</PackageSurfaceArea> </PackageSurfaceArea>