7c4ab1c2ef
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3100 It is not necessary to have a PEI phase in the UEFI payload since no specific PEI task is required. This patch adds a UefiPayloadEntry driver to get UEFI Payload required information from the bootloaders, convert them into a HOB list, load DXE core and transfer control to it. Here is the change details: 1) Removed PEI phase, including Peicore, BlSupportPei, SecCore, etc. 2) Added UefiPayloadEntry driver. this is the only driver before DXE core. 3) Added Pure X64 support, dropped Pure IA32 (Could add later if required) 64bit payload with 32bit entry point is still supported. 4) Use one DSC file UefiPayloadPkg.dsc to support X64 and IA32X64 build. Removed UefiPayloadIa32.dsc and UefiPayloadIa32X64.dsc Tested with SBL and coreboot on QEMU. Signed-off-by: Guo Dong <guo.dong@intel.com> Reviewed-by: Maurice Ma <maurice.ma@intel.com> Reviewed-by: Benjamin You <benjamin.you@intel.com>
707 lines
21 KiB
C
707 lines
21 KiB
C
/** @file
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Copyright (c) 2010, Apple Inc. All rights reserved.<BR>
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Copyright (c) 2017 - 2020, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PiPei.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/PcdLib.h>
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VOID *mHobList;
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/**
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Returns the pointer to the HOB list.
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This function returns the pointer to first HOB in the list.
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@return The pointer to the HOB list.
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**/
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VOID *
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EFIAPI
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GetHobList (
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VOID
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)
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{
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ASSERT (mHobList != NULL);
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return mHobList;
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}
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/**
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Build a Handoff Information Table HOB
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This function initialize a HOB region from EfiMemoryBegin with length
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EfiMemoryLength. And EfiFreeMemoryBottom and EfiFreeMemoryTop should
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be inside the HOB region.
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@param[in] EfiMemoryBegin Total memory start address
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@param[in] EfiMemoryLength Total memory length reported in handoff HOB.
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@param[in] EfiFreeMemoryBottom Free memory start address
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@param[in] EfiFreeMemoryTop Free memory end address.
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@return The pointer to the handoff HOB table.
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**/
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EFI_HOB_HANDOFF_INFO_TABLE*
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EFIAPI
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HobConstructor (
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IN VOID *EfiMemoryBegin,
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IN UINTN EfiMemoryLength,
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IN VOID *EfiFreeMemoryBottom,
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IN VOID *EfiFreeMemoryTop
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)
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{
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EFI_HOB_HANDOFF_INFO_TABLE *Hob;
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EFI_HOB_GENERIC_HEADER *HobEnd;
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Hob = EfiFreeMemoryBottom;
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HobEnd = (EFI_HOB_GENERIC_HEADER *)(Hob+1);
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Hob->Header.HobType = EFI_HOB_TYPE_HANDOFF;
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Hob->Header.HobLength = sizeof(EFI_HOB_HANDOFF_INFO_TABLE);
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Hob->Header.Reserved = 0;
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HobEnd->HobType = EFI_HOB_TYPE_END_OF_HOB_LIST;
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HobEnd->HobLength = sizeof(EFI_HOB_GENERIC_HEADER);
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HobEnd->Reserved = 0;
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Hob->Version = EFI_HOB_HANDOFF_TABLE_VERSION;
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Hob->BootMode = BOOT_WITH_FULL_CONFIGURATION;
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Hob->EfiMemoryTop = (UINTN)EfiMemoryBegin + EfiMemoryLength;
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Hob->EfiMemoryBottom = (UINTN)EfiMemoryBegin;
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Hob->EfiFreeMemoryTop = (UINTN)EfiFreeMemoryTop;
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Hob->EfiFreeMemoryBottom = (EFI_PHYSICAL_ADDRESS)(UINTN)(HobEnd+1);
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Hob->EfiEndOfHobList = (EFI_PHYSICAL_ADDRESS)(UINTN)HobEnd;
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mHobList = Hob;
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return Hob;
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}
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/**
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Add a new HOB to the HOB List.
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@param HobType Type of the new HOB.
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@param HobLength Length of the new HOB to allocate.
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@return NULL if there is no space to create a hob.
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@return The address point to the new created hob.
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**/
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VOID *
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EFIAPI
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CreateHob (
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IN UINT16 HobType,
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IN UINT16 HobLength
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)
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{
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EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
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EFI_HOB_GENERIC_HEADER *HobEnd;
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EFI_PHYSICAL_ADDRESS FreeMemory;
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VOID *Hob;
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HandOffHob = GetHobList ();
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HobLength = (UINT16)((HobLength + 0x7) & (~0x7));
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FreeMemory = HandOffHob->EfiFreeMemoryTop - HandOffHob->EfiFreeMemoryBottom;
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if (FreeMemory < HobLength) {
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return NULL;
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}
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Hob = (VOID*) (UINTN) HandOffHob->EfiEndOfHobList;
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((EFI_HOB_GENERIC_HEADER*) Hob)->HobType = HobType;
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((EFI_HOB_GENERIC_HEADER*) Hob)->HobLength = HobLength;
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((EFI_HOB_GENERIC_HEADER*) Hob)->Reserved = 0;
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HobEnd = (EFI_HOB_GENERIC_HEADER*) ((UINTN)Hob + HobLength);
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HandOffHob->EfiEndOfHobList = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;
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HobEnd->HobType = EFI_HOB_TYPE_END_OF_HOB_LIST;
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HobEnd->HobLength = sizeof(EFI_HOB_GENERIC_HEADER);
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HobEnd->Reserved = 0;
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HobEnd++;
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HandOffHob->EfiFreeMemoryBottom = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;
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return Hob;
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}
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/**
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Builds a HOB that describes a chunk of system memory.
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This function builds a HOB that describes a chunk of system memory.
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If there is no additional space for HOB creation, then ASSERT().
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@param ResourceType The type of resource described by this HOB.
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@param ResourceAttribute The resource attributes of the memory described by this HOB.
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@param PhysicalStart The 64 bit physical address of memory described by this HOB.
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@param NumberOfBytes The length of the memory described by this HOB in bytes.
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**/
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VOID
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EFIAPI
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BuildResourceDescriptorHob (
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IN EFI_RESOURCE_TYPE ResourceType,
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IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,
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IN EFI_PHYSICAL_ADDRESS PhysicalStart,
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IN UINT64 NumberOfBytes
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)
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{
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EFI_HOB_RESOURCE_DESCRIPTOR *Hob;
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Hob = CreateHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, sizeof (EFI_HOB_RESOURCE_DESCRIPTOR));
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ASSERT(Hob != NULL);
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Hob->ResourceType = ResourceType;
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Hob->ResourceAttribute = ResourceAttribute;
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Hob->PhysicalStart = PhysicalStart;
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Hob->ResourceLength = NumberOfBytes;
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}
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VOID
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EFIAPI
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BuildFvHobs (
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IN EFI_PHYSICAL_ADDRESS PhysicalStart,
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IN UINT64 NumberOfBytes,
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IN EFI_RESOURCE_ATTRIBUTE_TYPE *ResourceAttribute
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)
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{
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EFI_RESOURCE_ATTRIBUTE_TYPE Resource;
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BuildFvHob (PhysicalStart, NumberOfBytes);
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if (ResourceAttribute == NULL) {
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Resource = (EFI_RESOURCE_ATTRIBUTE_PRESENT |
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EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
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EFI_RESOURCE_ATTRIBUTE_TESTED |
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EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE);
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} else {
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Resource = *ResourceAttribute;
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}
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BuildResourceDescriptorHob (EFI_RESOURCE_FIRMWARE_DEVICE, Resource, PhysicalStart, NumberOfBytes);
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}
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/**
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Returns the next instance of a HOB type from the starting HOB.
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This function searches the first instance of a HOB type from the starting HOB pointer.
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If there does not exist such HOB type from the starting HOB pointer, it will return NULL.
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In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer
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unconditionally: it returns HobStart back if HobStart itself meets the requirement;
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caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.
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If HobStart is NULL, then ASSERT().
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@param Type The HOB type to return.
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@param HobStart The starting HOB pointer to search from.
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@return The next instance of a HOB type from the starting HOB.
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**/
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VOID *
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EFIAPI
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GetNextHob (
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IN UINT16 Type,
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IN CONST VOID *HobStart
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)
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{
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EFI_PEI_HOB_POINTERS Hob;
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ASSERT (HobStart != NULL);
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Hob.Raw = (UINT8 *) HobStart;
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//
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// Parse the HOB list until end of list or matching type is found.
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//
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while (!END_OF_HOB_LIST (Hob)) {
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if (Hob.Header->HobType == Type) {
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return Hob.Raw;
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}
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Hob.Raw = GET_NEXT_HOB (Hob);
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}
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return NULL;
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}
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/**
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Returns the first instance of a HOB type among the whole HOB list.
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This function searches the first instance of a HOB type among the whole HOB list.
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If there does not exist such HOB type in the HOB list, it will return NULL.
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@param Type The HOB type to return.
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@return The next instance of a HOB type from the starting HOB.
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**/
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VOID *
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EFIAPI
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GetFirstHob (
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IN UINT16 Type
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)
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{
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VOID *HobList;
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HobList = GetHobList ();
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return GetNextHob (Type, HobList);
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}
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/**
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This function searches the first instance of a HOB from the starting HOB pointer.
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Such HOB should satisfy two conditions:
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its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.
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If there does not exist such HOB from the starting HOB pointer, it will return NULL.
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Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()
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to extract the data section and its size info respectively.
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In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer
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unconditionally: it returns HobStart back if HobStart itself meets the requirement;
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caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.
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If Guid is NULL, then ASSERT().
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If HobStart is NULL, then ASSERT().
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@param Guid The GUID to match with in the HOB list.
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@param HobStart A pointer to a Guid.
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@return The next instance of the matched GUID HOB from the starting HOB.
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**/
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VOID *
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EFIAPI
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GetNextGuidHob (
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IN CONST EFI_GUID *Guid,
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IN CONST VOID *HobStart
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){
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EFI_PEI_HOB_POINTERS GuidHob;
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GuidHob.Raw = (UINT8 *) HobStart;
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while ((GuidHob.Raw = GetNextHob (EFI_HOB_TYPE_GUID_EXTENSION, GuidHob.Raw)) != NULL) {
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if (CompareGuid (Guid, &GuidHob.Guid->Name)) {
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break;
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}
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GuidHob.Raw = GET_NEXT_HOB (GuidHob);
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}
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return GuidHob.Raw;
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}
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/**
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This function searches the first instance of a HOB among the whole HOB list.
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Such HOB should satisfy two conditions:
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its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.
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If there does not exist such HOB from the starting HOB pointer, it will return NULL.
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Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()
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to extract the data section and its size info respectively.
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If Guid is NULL, then ASSERT().
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@param Guid The GUID to match with in the HOB list.
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@return The first instance of the matched GUID HOB among the whole HOB list.
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**/
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VOID *
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EFIAPI
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GetFirstGuidHob (
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IN CONST EFI_GUID *Guid
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)
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{
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VOID *HobList;
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HobList = GetHobList ();
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return GetNextGuidHob (Guid, HobList);
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}
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/**
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Builds a HOB for a loaded PE32 module.
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This function builds a HOB for a loaded PE32 module.
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It can only be invoked during PEI phase;
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for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
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If ModuleName is NULL, then ASSERT().
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If there is no additional space for HOB creation, then ASSERT().
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@param ModuleName The GUID File Name of the module.
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@param MemoryAllocationModule The 64 bit physical address of the module.
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@param ModuleLength The length of the module in bytes.
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@param EntryPoint The 64 bit physical address of the module entry point.
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**/
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VOID
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EFIAPI
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BuildModuleHob (
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IN CONST EFI_GUID *ModuleName,
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IN EFI_PHYSICAL_ADDRESS MemoryAllocationModule,
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IN UINT64 ModuleLength,
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IN EFI_PHYSICAL_ADDRESS EntryPoint
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)
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{
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EFI_HOB_MEMORY_ALLOCATION_MODULE *Hob;
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ASSERT (((MemoryAllocationModule & (EFI_PAGE_SIZE - 1)) == 0) &&
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((ModuleLength & (EFI_PAGE_SIZE - 1)) == 0));
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Hob = CreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, sizeof (EFI_HOB_MEMORY_ALLOCATION_MODULE));
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CopyGuid (&(Hob->MemoryAllocationHeader.Name), &gEfiHobMemoryAllocModuleGuid);
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Hob->MemoryAllocationHeader.MemoryBaseAddress = MemoryAllocationModule;
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Hob->MemoryAllocationHeader.MemoryLength = ModuleLength;
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Hob->MemoryAllocationHeader.MemoryType = EfiBootServicesCode;
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//
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// Zero the reserved space to match HOB spec
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//
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ZeroMem (Hob->MemoryAllocationHeader.Reserved, sizeof (Hob->MemoryAllocationHeader.Reserved));
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CopyGuid (&Hob->ModuleName, ModuleName);
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Hob->EntryPoint = EntryPoint;
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}
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/**
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Builds a GUID HOB with a certain data length.
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This function builds a customized HOB tagged with a GUID for identification
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and returns the start address of GUID HOB data so that caller can fill the customized data.
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The HOB Header and Name field is already stripped.
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It can only be invoked during PEI phase;
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for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
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If Guid is NULL, then ASSERT().
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If there is no additional space for HOB creation, then ASSERT().
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If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().
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@param Guid The GUID to tag the customized HOB.
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@param DataLength The size of the data payload for the GUID HOB.
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@return The start address of GUID HOB data.
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**/
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VOID *
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EFIAPI
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BuildGuidHob (
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IN CONST EFI_GUID *Guid,
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IN UINTN DataLength
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)
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{
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EFI_HOB_GUID_TYPE *Hob;
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//
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// Make sure that data length is not too long.
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//
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ASSERT (DataLength <= (0xffff - sizeof (EFI_HOB_GUID_TYPE)));
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Hob = CreateHob (EFI_HOB_TYPE_GUID_EXTENSION, (UINT16) (sizeof (EFI_HOB_GUID_TYPE) + DataLength));
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CopyGuid (&Hob->Name, Guid);
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return Hob + 1;
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}
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/**
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Copies a data buffer to a newly-built HOB.
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This function builds a customized HOB tagged with a GUID for identification,
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copies the input data to the HOB data field and returns the start address of the GUID HOB data.
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The HOB Header and Name field is already stripped.
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It can only be invoked during PEI phase;
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for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
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If Guid is NULL, then ASSERT().
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If Data is NULL and DataLength > 0, then ASSERT().
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If there is no additional space for HOB creation, then ASSERT().
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If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().
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@param Guid The GUID to tag the customized HOB.
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@param Data The data to be copied into the data field of the GUID HOB.
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@param DataLength The size of the data payload for the GUID HOB.
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@return The start address of GUID HOB data.
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**/
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VOID *
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EFIAPI
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BuildGuidDataHob (
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IN CONST EFI_GUID *Guid,
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IN VOID *Data,
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IN UINTN DataLength
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)
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{
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VOID *HobData;
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ASSERT (Data != NULL || DataLength == 0);
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HobData = BuildGuidHob (Guid, DataLength);
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return CopyMem (HobData, Data, DataLength);
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}
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/**
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Builds a Firmware Volume HOB.
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This function builds a Firmware Volume HOB.
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It can only be invoked during PEI phase;
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for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
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If there is no additional space for HOB creation, then ASSERT().
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@param BaseAddress The base address of the Firmware Volume.
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@param Length The size of the Firmware Volume in bytes.
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**/
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VOID
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EFIAPI
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BuildFvHob (
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length
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)
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{
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EFI_HOB_FIRMWARE_VOLUME *Hob;
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Hob = CreateHob (EFI_HOB_TYPE_FV, sizeof (EFI_HOB_FIRMWARE_VOLUME));
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Hob->BaseAddress = BaseAddress;
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Hob->Length = Length;
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}
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/**
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Builds a EFI_HOB_TYPE_FV2 HOB.
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This function builds a EFI_HOB_TYPE_FV2 HOB.
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It can only be invoked during PEI phase;
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for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
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If there is no additional space for HOB creation, then ASSERT().
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@param BaseAddress The base address of the Firmware Volume.
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@param Length The size of the Firmware Volume in bytes.
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@param FvName The name of the Firmware Volume.
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@param FileName The name of the file.
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**/
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VOID
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EFIAPI
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BuildFv2Hob (
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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IN CONST EFI_GUID *FvName,
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IN CONST EFI_GUID *FileName
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)
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{
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EFI_HOB_FIRMWARE_VOLUME2 *Hob;
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Hob = CreateHob (EFI_HOB_TYPE_FV2, sizeof (EFI_HOB_FIRMWARE_VOLUME2));
|
|
|
|
Hob->BaseAddress = BaseAddress;
|
|
Hob->Length = Length;
|
|
CopyGuid (&Hob->FvName, FvName);
|
|
CopyGuid (&Hob->FileName, FileName);
|
|
}
|
|
|
|
/**
|
|
Builds a EFI_HOB_TYPE_FV3 HOB.
|
|
|
|
This function builds a EFI_HOB_TYPE_FV3 HOB.
|
|
It can only be invoked during PEI phase;
|
|
for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
|
|
|
|
If there is no additional space for HOB creation, then ASSERT().
|
|
|
|
@param BaseAddress The base address of the Firmware Volume.
|
|
@param Length The size of the Firmware Volume in bytes.
|
|
@param AuthenticationStatus The authentication status.
|
|
@param ExtractedFv TRUE if the FV was extracted as a file within
|
|
another firmware volume. FALSE otherwise.
|
|
@param FvName The name of the Firmware Volume.
|
|
Valid only if IsExtractedFv is TRUE.
|
|
@param FileName The name of the file.
|
|
Valid only if IsExtractedFv is TRUE.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
BuildFv3Hob (
|
|
IN EFI_PHYSICAL_ADDRESS BaseAddress,
|
|
IN UINT64 Length,
|
|
IN UINT32 AuthenticationStatus,
|
|
IN BOOLEAN ExtractedFv,
|
|
IN CONST EFI_GUID *FvName, OPTIONAL
|
|
IN CONST EFI_GUID *FileName OPTIONAL
|
|
)
|
|
{
|
|
EFI_HOB_FIRMWARE_VOLUME3 *Hob;
|
|
|
|
Hob = CreateHob (EFI_HOB_TYPE_FV3, sizeof (EFI_HOB_FIRMWARE_VOLUME3));
|
|
|
|
Hob->BaseAddress = BaseAddress;
|
|
Hob->Length = Length;
|
|
Hob->AuthenticationStatus = AuthenticationStatus;
|
|
Hob->ExtractedFv = ExtractedFv;
|
|
if (ExtractedFv) {
|
|
CopyGuid (&Hob->FvName, FvName);
|
|
CopyGuid (&Hob->FileName, FileName);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
Builds a HOB for the CPU.
|
|
|
|
This function builds a HOB for the CPU.
|
|
It can only be invoked during PEI phase;
|
|
for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
|
|
If there is no additional space for HOB creation, then ASSERT().
|
|
|
|
@param SizeOfMemorySpace The maximum physical memory addressability of the processor.
|
|
@param SizeOfIoSpace The maximum physical I/O addressability of the processor.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
BuildCpuHob (
|
|
IN UINT8 SizeOfMemorySpace,
|
|
IN UINT8 SizeOfIoSpace
|
|
)
|
|
{
|
|
EFI_HOB_CPU *Hob;
|
|
|
|
Hob = CreateHob (EFI_HOB_TYPE_CPU, sizeof (EFI_HOB_CPU));
|
|
|
|
Hob->SizeOfMemorySpace = SizeOfMemorySpace;
|
|
Hob->SizeOfIoSpace = SizeOfIoSpace;
|
|
|
|
//
|
|
// Zero the reserved space to match HOB spec
|
|
//
|
|
ZeroMem (Hob->Reserved, sizeof (Hob->Reserved));
|
|
}
|
|
|
|
|
|
/**
|
|
Builds a HOB for the Stack.
|
|
|
|
This function builds a HOB for the stack.
|
|
It can only be invoked during PEI phase;
|
|
for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
|
|
If there is no additional space for HOB creation, then ASSERT().
|
|
|
|
@param BaseAddress The 64 bit physical address of the Stack.
|
|
@param Length The length of the stack in bytes.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
BuildStackHob (
|
|
IN EFI_PHYSICAL_ADDRESS BaseAddress,
|
|
IN UINT64 Length
|
|
)
|
|
{
|
|
EFI_HOB_MEMORY_ALLOCATION_STACK *Hob;
|
|
|
|
ASSERT (((BaseAddress & (EFI_PAGE_SIZE - 1)) == 0) &&
|
|
((Length & (EFI_PAGE_SIZE - 1)) == 0));
|
|
|
|
Hob = CreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, sizeof (EFI_HOB_MEMORY_ALLOCATION_STACK));
|
|
|
|
CopyGuid (&(Hob->AllocDescriptor.Name), &gEfiHobMemoryAllocStackGuid);
|
|
Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;
|
|
Hob->AllocDescriptor.MemoryLength = Length;
|
|
Hob->AllocDescriptor.MemoryType = EfiBootServicesData;
|
|
|
|
//
|
|
// Zero the reserved space to match HOB spec
|
|
//
|
|
ZeroMem (Hob->AllocDescriptor.Reserved, sizeof (Hob->AllocDescriptor.Reserved));
|
|
}
|
|
|
|
|
|
/**
|
|
Update the Stack Hob if the stack has been moved
|
|
|
|
@param BaseAddress The 64 bit physical address of the Stack.
|
|
@param Length The length of the stack in bytes.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
UpdateStackHob (
|
|
IN EFI_PHYSICAL_ADDRESS BaseAddress,
|
|
IN UINT64 Length
|
|
)
|
|
{
|
|
EFI_PEI_HOB_POINTERS Hob;
|
|
|
|
Hob.Raw = GetHobList ();
|
|
while ((Hob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob.Raw)) != NULL) {
|
|
if (CompareGuid (&gEfiHobMemoryAllocStackGuid, &(Hob.MemoryAllocationStack->AllocDescriptor.Name))) {
|
|
//
|
|
// Build a new memory allocation HOB with old stack info with EfiConventionalMemory type
|
|
// to be reclaimed by DXE core.
|
|
//
|
|
BuildMemoryAllocationHob (
|
|
Hob.MemoryAllocationStack->AllocDescriptor.MemoryBaseAddress,
|
|
Hob.MemoryAllocationStack->AllocDescriptor.MemoryLength,
|
|
EfiConventionalMemory
|
|
);
|
|
//
|
|
// Update the BSP Stack Hob to reflect the new stack info.
|
|
//
|
|
Hob.MemoryAllocationStack->AllocDescriptor.MemoryBaseAddress = BaseAddress;
|
|
Hob.MemoryAllocationStack->AllocDescriptor.MemoryLength = Length;
|
|
break;
|
|
}
|
|
Hob.Raw = GET_NEXT_HOB (Hob);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Builds a HOB for the memory allocation.
|
|
|
|
This function builds a HOB for the memory allocation.
|
|
It can only be invoked during PEI phase;
|
|
for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
|
|
If there is no additional space for HOB creation, then ASSERT().
|
|
|
|
@param BaseAddress The 64 bit physical address of the memory.
|
|
@param Length The length of the memory allocation in bytes.
|
|
@param MemoryType Type of memory allocated by this HOB.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
BuildMemoryAllocationHob (
|
|
IN EFI_PHYSICAL_ADDRESS BaseAddress,
|
|
IN UINT64 Length,
|
|
IN EFI_MEMORY_TYPE MemoryType
|
|
)
|
|
{
|
|
EFI_HOB_MEMORY_ALLOCATION *Hob;
|
|
|
|
ASSERT (((BaseAddress & (EFI_PAGE_SIZE - 1)) == 0) &&
|
|
((Length & (EFI_PAGE_SIZE - 1)) == 0));
|
|
|
|
Hob = CreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, sizeof (EFI_HOB_MEMORY_ALLOCATION));
|
|
|
|
ZeroMem (&(Hob->AllocDescriptor.Name), sizeof (EFI_GUID));
|
|
Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;
|
|
Hob->AllocDescriptor.MemoryLength = Length;
|
|
Hob->AllocDescriptor.MemoryType = MemoryType;
|
|
//
|
|
// Zero the reserved space to match HOB spec
|
|
//
|
|
ZeroMem (Hob->AllocDescriptor.Reserved, sizeof (Hob->AllocDescriptor.Reserved));
|
|
}
|
|
|