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+/** @file
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+ LoongArch specifc functionality for DxeLoad.
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+
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+ Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
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+
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+ SPDX-License-Identifier: BSD-2-Clause-Patent
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+
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+**/
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+
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+#include "DxeIpl.h"
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+
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+/**
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+ Transfers control to DxeCore.
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+
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+ This function performs a CPU architecture specific operations to execute
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+ the entry point of DxeCore with the parameters of HobList.
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+ It also installs EFI_END_OF_PEI_PPI to signal the end of PEI phase.
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+
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+ @param[in] DxeCoreEntryPoint The entry point of DxeCore.
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+ @param[in] HobList The start of HobList passed to DxeCore.
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+
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+**/
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+VOID
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+HandOffToDxeCore (
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+ IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
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+ IN EFI_PEI_HOB_POINTERS HobList
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+ )
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+{
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+ VOID *BaseOfStack;
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+ VOID *TopOfStack;
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+ EFI_STATUS Status;
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+
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+ //
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+ // Allocate 128KB for the Stack
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+ //
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+ BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
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+ ASSERT (BaseOfStack != NULL);
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+
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+ //
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+ // Compute the top of the stack we were allocated. Pre-allocate a UINTN
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+ // for safety.
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+ //
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+ TopOfStack = (VOID *)((UINTN)BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);
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+ TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
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+
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+ //
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+ // End of PEI phase signal
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+ //
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+ Status = PeiServicesInstallPpi (&gEndOfPeiSignalPpi);
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+ ASSERT_EFI_ERROR (Status);
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+
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+ //
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+ // Update the contents of BSP stack HOB to reflect the real stack info passed to DxeCore.
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+ //
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+ UpdateStackHob ((EFI_PHYSICAL_ADDRESS)(UINTN)BaseOfStack, STACK_SIZE);
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+
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+ SwitchStack (
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+ (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
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+ HobList.Raw,
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+ NULL,
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+ TopOfStack
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+ );
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+}
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