diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf index 94dfcab7a3..b0117e3ebf 100644 --- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf +++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf @@ -45,7 +45,7 @@ Ia32/IdtVectorAsm.asm Ia32/IdtVectorAsm.S | GCC -[Sources.X64, Sources.EBC] +[Sources.X64] X64/VirtualMemory.h X64/VirtualMemory.c X64/DxeLoadFunc.c @@ -55,6 +55,10 @@ Ipf/DxeLoadFunc.c Ipf/ImageRead.c +[Sources.EBC] + Ebc/DxeLoadFunc.c + Ia32/ImageRead.c + [Packages] MdePkg/MdePkg.dec MdeModulePkg/MdeModulePkg.dec diff --git a/MdeModulePkg/Core/DxeIplPeim/Ebc/DxeLoadFunc.c b/MdeModulePkg/Core/DxeIplPeim/Ebc/DxeLoadFunc.c new file mode 100644 index 0000000000..51055e157a --- /dev/null +++ b/MdeModulePkg/Core/DxeIplPeim/Ebc/DxeLoadFunc.c @@ -0,0 +1,73 @@ +/** @file + x64-specifc functionality for DxeLoad. + +Copyright (c) 2006 - 2008, 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. + +**/ + +#include "DxeIpl.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 intalls EFI_END_OF_PEI_PPI to signal the end of PEI phase. + + @param DxeCoreEntryPoint The entrypoint 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); + + // + // 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); + + // + // Transfer the control to the entry point of DxeCore. + // + SwitchStack ( + (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint, + HobList.Raw, + NULL, + TopOfStack + ); +}