OvmfPkg/ResetVector/ResetVector.nasmb

;------------------------------------------------------------------------------
; @file
; This file includes all other code files to assemble the reset vector code
;
; Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
; Copyright (c) 2020, Advanced Micro Devices, Inc. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
;------------------------------------------------------------------------------

;
; If neither ARCH_IA32 nor ARCH_X64 are defined, then try to include
; Base.h to use the C pre-processor to determine the architecture.
;
%ifndef ARCH_IA32
  %ifndef ARCH_X64
    #include <Base.h>
    #if defined (MDE_CPU_IA32)
      %define ARCH_IA32
    #elif defined (MDE_CPU_X64)
      %define ARCH_X64
    #endif
  %endif
%endif

%ifdef ARCH_IA32
  %ifdef ARCH_X64
    %error "Only one of ARCH_IA32 or ARCH_X64 can be defined."
  %endif
%elifdef ARCH_X64
%else
  %error "Either ARCH_IA32 or ARCH_X64 must be defined."
%endif

%include "CommonMacros.inc"

%include "PostCodes.inc"

%ifdef DEBUG_PORT80
  %include "Port80Debug.asm"
%elifdef DEBUG_SERIAL
  %include "SerialDebug.asm"
%else
  %include "DebugDisabled.asm"
%endif

%include "Ia32/SearchForBfvBase.asm"
%include "Ia32/SearchForSecEntry.asm"

%define WORK_AREA_GUEST_TYPE (FixedPcdGet32 (PcdOvmfWorkAreaBase))

%ifdef ARCH_X64
  #include <AutoGen.h>

  %if (FixedPcdGet32 (PcdOvmfSecPageTablesSize) != 0x6000)
    %error "This implementation inherently depends on PcdOvmfSecPageTablesSize"
  %endif

  %if (FixedPcdGet32 (PcdOvmfSecGhcbPageTableSize) != 0x1000)
    %error "This implementation inherently depends on PcdOvmfSecGhcbPageTableSize"
  %endif

  %if (FixedPcdGet32 (PcdOvmfSecGhcbSize) != 0x2000)
    %error "This implementation inherently depends on PcdOvmfSecGhcbSize"
  %endif

  %if ((FixedPcdGet32 (PcdOvmfSecGhcbBase) >> 21) != \
       ((FixedPcdGet32 (PcdOvmfSecGhcbBase) + FixedPcdGet32 (PcdOvmfSecGhcbSize) - 1) >> 21))
    %error "This implementation inherently depends on PcdOvmfSecGhcbBase not straddling a 2MB boundary"
  %endif

  %define TDX_BFV_RAW_DATA_OFFSET   FixedPcdGet32 (PcdBfvRawDataOffset)
  %define TDX_BFV_RAW_DATA_SIZE     FixedPcdGet32 (PcdBfvRawDataSize)
  %define TDX_BFV_MEMORY_BASE       FixedPcdGet32 (PcdBfvBase)
  %define TDX_BFV_MEMORY_SIZE       FixedPcdGet32 (PcdBfvRawDataSize)

  %define TDX_CFV_RAW_DATA_OFFSET   FixedPcdGet32 (PcdCfvRawDataOffset)
  %define TDX_CFV_RAW_DATA_SIZE     FixedPcdGet32 (PcdCfvRawDataSize)
  %define TDX_CFV_MEMORY_BASE       FixedPcdGet32 (PcdCfvBase),
  %define TDX_CFV_MEMORY_SIZE       FixedPcdGet32 (PcdCfvRawDataSize),

  %define TDX_HEAP_STACK_BASE       FixedPcdGet32 (PcdOvmfSecPeiTempRamBase)
  %define TDX_HEAP_STACK_SIZE       FixedPcdGet32 (PcdOvmfSecPeiTempRamSize)

  %define TDX_HOB_MEMORY_BASE       FixedPcdGet32 (PcdOvmfSecGhcbBase)
  %define TDX_HOB_MEMORY_SIZE       FixedPcdGet32 (PcdOvmfSecGhcbSize)

  %define TDX_INIT_MEMORY_BASE      FixedPcdGet32 (PcdOvmfWorkAreaBase)
  %define TDX_INIT_MEMORY_SIZE      (FixedPcdGet32 (PcdOvmfWorkAreaSize) + FixedPcdGet32 (PcdOvmfSecGhcbBackupSize))

  %define OVMF_PAGE_TABLE_BASE      FixedPcdGet32 (PcdOvmfSecPageTablesBase)
  %define OVMF_PAGE_TABLE_SIZE      FixedPcdGet32 (PcdOvmfSecPageTablesSize)

  %define TDX_WORK_AREA_PGTBL_READY (FixedPcdGet32 (PcdOvmfWorkAreaBase) + 4)
  %define TDX_WORK_AREA_GPAW        (FixedPcdGet32 (PcdOvmfWorkAreaBase) + 8)

  %define PT_ADDR(Offset) (FixedPcdGet32 (PcdOvmfSecPageTablesBase) + (Offset))

  %define GHCB_PT_ADDR (FixedPcdGet32 (PcdOvmfSecGhcbPageTableBase))
  %define GHCB_BASE (FixedPcdGet32 (PcdOvmfSecGhcbBase))
  %define GHCB_SIZE (FixedPcdGet32 (PcdOvmfSecGhcbSize))
  %define SEV_ES_WORK_AREA (FixedPcdGet32 (PcdSevEsWorkAreaBase))
  %define SEV_ES_WORK_AREA_SIZE 25
  %define SEV_ES_WORK_AREA_STATUS_MSR (FixedPcdGet32 (PcdSevEsWorkAreaBase))
  %define SEV_ES_WORK_AREA_RDRAND (FixedPcdGet32 (PcdSevEsWorkAreaBase) + 8)
  %define SEV_ES_WORK_AREA_ENC_MASK (FixedPcdGet32 (PcdSevEsWorkAreaBase) + 16)
  %define SEV_ES_WORK_AREA_RECEIVED_VC (FixedPcdGet32 (PcdSevEsWorkAreaBase) + 24)
  %define SEV_ES_VC_TOP_OF_STACK (FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + FixedPcdGet32 (PcdOvmfSecPeiTempRamSize))
  %define SEV_SNP_SECRETS_BASE  (FixedPcdGet32 (PcdOvmfSnpSecretsBase))
  %define SEV_SNP_SECRETS_SIZE  (FixedPcdGet32 (PcdOvmfSnpSecretsSize))
  %define CPUID_BASE  (FixedPcdGet32 (PcdOvmfCpuidBase))
  %define CPUID_SIZE  (FixedPcdGet32 (PcdOvmfCpuidSize))
  %define SNP_SEC_MEM_BASE_DESC_1 (FixedPcdGet32 (PcdOvmfSecPageTablesBase))
  %define SNP_SEC_MEM_SIZE_DESC_1 (FixedPcdGet32 (PcdOvmfSecGhcbBase) - SNP_SEC_MEM_BASE_DESC_1)
  ;
  ; The PcdOvmfSecGhcbBase reserves two GHCB pages. The first page is used
  ; as GHCB shared page and second is used for bookkeeping to support the
  ; nested GHCB in SEC phase. The bookkeeping page is mapped private. The VMM
  ; does not need to validate the shared page but it need to validate the
  ; bookkeeping page.
  ;
  %define SNP_SEC_MEM_BASE_DESC_2 (GHCB_BASE + 0x1000)
  %define SNP_SEC_MEM_SIZE_DESC_2 (SEV_SNP_SECRETS_BASE - SNP_SEC_MEM_BASE_DESC_2)
  %define SNP_SEC_MEM_BASE_DESC_3 (CPUID_BASE + CPUID_SIZE)
  %define SNP_SEC_MEM_SIZE_DESC_3 (FixedPcdGet32 (PcdOvmfPeiMemFvBase) - SNP_SEC_MEM_BASE_DESC_3)

%include "X64/IntelTdxMetadata.asm"
%include "Ia32/Flat32ToFlat64.asm"
%include "Ia32/AmdSev.asm"
%include "Ia32/PageTables64.asm"
%include "Ia32/IntelTdx.asm"
%include "X64/OvmfSevMetadata.asm"
%endif

%include "Ia16/Real16ToFlat32.asm"
%include "Ia16/Init16.asm"

%include "Main.asm"

  %define SEV_ES_AP_RESET_IP  FixedPcdGet32 (PcdSevEsWorkAreaBase)
  %define SEV_LAUNCH_SECRET_BASE  FixedPcdGet32 (PcdSevLaunchSecretBase)
  %define SEV_LAUNCH_SECRET_SIZE  FixedPcdGet32 (PcdSevLaunchSecretSize)
  %define SEV_FW_HASH_BLOCK_BASE  FixedPcdGet32 (PcdQemuHashTableBase)
  %define SEV_FW_HASH_BLOCK_SIZE  FixedPcdGet32 (PcdQemuHashTableSize)
%include "Ia16/ResetVectorVtf0.asm"