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MdeModulePkg/DxeIpl ARM AARCH64: Switch to generic handoff code 

Now that we have a generic method to manage memory permissions using a
PPI, we can switch to the generic version of the DXE handoff code in
DxeIpl, and drop the ARM specific version.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Oliver Smith-Denny <osde@linux.microsoft.com>
Reviewed-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
This commit is contained in:
Ard Biesheuvel 2023-06-02 17:17:38 +02:00 committed by mergify[bot]
parent 4249829cf2
commit a21a994f55
2 changed files with 1 additions and 81 deletions
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71
MdeModulePkg/Core/DxeIplPeim/Arm/DxeLoadFunc.c
View File

@ -1,71 +0,0 @@
/** @file
ARM specifc functionality for DxeLoad.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "DxeIpl.h"
#include <Library/ArmMmuLib.h>
/**
Transfers control to DxeCore.
This function performs a CPU architecture specific operations to execute
the entry point of DxeCore with the parameters of HobList.
It also installs EFI_END_OF_PEI_PPI to signal the end of PEI phase.
@param DxeCoreEntryPoint The entry point of DxeCore.
@param HobList The start of HobList passed to DxeCore.
**/
VOID
HandOffToDxeCore (
IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN EFI_PEI_HOB_POINTERS HobList
)
{
VOID *BaseOfStack;
VOID *TopOfStack;
EFI_STATUS Status;
//
// Allocate 128KB for the Stack
//
BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
ASSERT (BaseOfStack != NULL);
if (PcdGetBool (PcdSetNxForStack)) {
Status = ArmSetMemoryRegionNoExec ((UINTN)BaseOfStack, STACK_SIZE);
ASSERT_EFI_ERROR (Status);
}
//
// 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);
//
// End of PEI phase singal
//
Status = PeiServicesInstallPpi (&gEndOfPeiSignalPpi);
ASSERT_EFI_ERROR (Status);
//
// Update the contents of BSP stack HOB to reflect the real stack info passed to DxeCore.
//
UpdateStackHob ((EFI_PHYSICAL_ADDRESS)(UINTN)BaseOfStack, STACK_SIZE);
SwitchStack (
(SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
HobList.Raw,
NULL,
TopOfStack
);
}

11
MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
View File

@ -45,19 +45,13 @@
X64/VirtualMemory.c
X64/DxeLoadFunc.c
[Sources.ARM, Sources.AARCH64]
Arm/DxeLoadFunc.c
[Sources.LOONGARCH64,Sources.RISCV64,Sources.EBC]
[Sources.LOONGARCH64,Sources.RISCV64,Sources.EBC,Sources.ARM,Sources.AARCH64]
DxeHandoff.c
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
[Packages.ARM, Packages.AARCH64]
ArmPkg/ArmPkg.dec
[LibraryClasses]
PcdLib
MemoryAllocationLib
@ -74,9 +68,6 @@
PeiServicesTablePointerLib
PerformanceLib
[LibraryClasses.ARM, LibraryClasses.AARCH64]
ArmMmuLib
[Ppis]
gEfiDxeIplPpiGuid ## PRODUCES
gEfiPeiDecompressPpiGuid ## PRODUCES