2 EBC-specific functionality for DxeLoad.
4 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
5 SPDX-License-Identifier: BSD-2-Clause-Patent
12 Transfers control to DxeCore.
14 This function performs a CPU architecture specific operations to execute
15 the entry point of DxeCore with the parameters of HobList.
16 It also installs EFI_END_OF_PEI_PPI to signal the end of PEI phase.
18 @param DxeCoreEntryPoint The entry point of DxeCore.
19 @param HobList The start of HobList passed to DxeCore.
24 IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint
,
25 IN EFI_PEI_HOB_POINTERS HobList
33 // Allocate 128KB for the Stack
35 BaseOfStack
= AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE
));
36 ASSERT (BaseOfStack
!= NULL
);
39 // Compute the top of the stack we were allocated. Pre-allocate a UINTN
42 TopOfStack
= (VOID
*)((UINTN
)BaseOfStack
+ EFI_SIZE_TO_PAGES (STACK_SIZE
) * EFI_PAGE_SIZE
- CPU_STACK_ALIGNMENT
);
43 TopOfStack
= ALIGN_POINTER (TopOfStack
, CPU_STACK_ALIGNMENT
);
46 // End of PEI phase signal
48 Status
= PeiServicesInstallPpi (&gEndOfPeiSignalPpi
);
49 ASSERT_EFI_ERROR (Status
);
52 // Update the contents of BSP stack HOB to reflect the real stack info passed to DxeCore.
54 UpdateStackHob ((EFI_PHYSICAL_ADDRESS
)(UINTN
)BaseOfStack
, STACK_SIZE
);
57 // Transfer the control to the entry point of DxeCore.
60 (SWITCH_STACK_ENTRY_POINT
)(UINTN
)DxeCoreEntryPoint
,