PeilessStartup.c File Reference

#include <PiPei.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DebugLib.h>
#include <Protocol/DebugSupport.h>
#include <Library/TdxLib.h>
#include <IndustryStandard/Tdx.h>
#include <Library/PrePiLib.h>
#include <Library/PeilessStartupLib.h>
#include <Library/PlatformInitLib.h>
#include <Library/TdxHelperLib.h>
#include <ConfidentialComputingGuestAttr.h>
#include <Guid/MemoryTypeInformation.h>
#include <OvmfPlatforms.h>
#include "PeilessStartupInternal.h"

Go to the source code of this file.

Macros
#define	GET_GPAW_INIT_STATE(INFO)   ((UINT8) ((INFO) & 0x3f))

Functions
EFI_STATUS EFIAPI	InitializePlatform (EFI_HOB_PLATFORM_INFO *PlatformInfoHob)
VOID EFIAPI	PeilessStartup (IN VOID *Context)

Variables
EFI_MEMORY_TYPE_INFORMATION	mDefaultMemoryTypeInformation []

Detailed Description

Copyright (c) 2021, Intel Corporation. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file PeilessStartup.c.

Macro Definition Documentation

GET_GPAW_INIT_STATE

#define GET_GPAW_INIT_STATE

(

INFO

)

((UINT8) ((INFO) & 0x3f))

Definition at line 26 of file PeilessStartup.c.

Function Documentation

InitializePlatform()

EFI_STATUS EFIAPI InitializePlatform

(

EFI_HOB_PLATFORM_INFO *

PlatformInfoHob

)

Definition at line 41 of file PeilessStartup.c.

PeilessStartup()

VOID EFIAPI PeilessStartup

(

IN VOID *

Context

)

This function brings up the Tdx guest from SEC phase to DXE phase. PEI phase is skipped because most of the components in PEI phase is not needed for Tdx guest, for example, MP Services, TPM etc. In this way, the attack surfaces are reduced as much as possible.

Parameters

Context

The pointer to the SecCoreData

Returns

VOID This function never returns

Definition at line 130 of file PeilessStartup.c.

Variable Documentation

mDefaultMemoryTypeInformation

EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[]

Initial value:

= {
  { EfiACPIMemoryNVS,       0x004 },
  { EfiACPIReclaimMemory,   0x008 },
  { EfiReservedMemoryType,  0x004 },
  { EfiRuntimeServicesData, 0x024 },
  { EfiRuntimeServicesCode, 0x030 },
  { EfiBootServicesCode,    0x180 },
  { EfiBootServicesData,    0xF00 },
  { EfiMaxMemoryType,       0x000 }
}

Definition at line 28 of file PeilessStartup.c.