mirror of https://github.com/acidanthera/audk.git
107 lines
2.1 KiB
C
107 lines
2.1 KiB
C
/** @file
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Null stub of TdxLib
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Copyright (c) 2021, 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 <Uefi/UefiBaseType.h>
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#include <Library/TdxLib.h>
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/**
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This function accepts a pending private page, and initialize the page to
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all-0 using the TD ephemeral private key.
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@param[in] StartAddress Guest physical address of the private page
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to accept.
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@param[in] NumberOfPages Number of the pages to be accepted.
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@param[in] PageSize GPA page size. Accept 1G/2M/4K page size.
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@return EFI_SUCCESS
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**/
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EFI_STATUS
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EFIAPI
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TdAcceptPages (
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IN UINT64 StartAddress,
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IN UINT64 NumberOfPages,
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IN UINT32 PageSize
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)
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{
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return EFI_UNSUPPORTED;
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}
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/**
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This function extends one of the RTMR measurement register
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in TDCS with the provided extension data in memory.
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RTMR extending supports SHA384 which length is 48 bytes.
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@param[in] Data Point to the data to be extended
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@param[in] DataLen Length of the data. Must be 48
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@param[in] Index RTMR index
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@return EFI_SUCCESS
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@return EFI_INVALID_PARAMETER
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@return EFI_DEVICE_ERROR
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**/
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EFI_STATUS
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EFIAPI
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TdExtendRtmr (
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IN UINT32 *Data,
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IN UINT32 DataLen,
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IN UINT8 Index
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)
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{
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return EFI_UNSUPPORTED;
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}
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/**
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This function gets the Td guest shared page mask.
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The guest indicates if a page is shared using the Guest Physical Address
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(GPA) Shared (S) bit. If the GPA Width(GPAW) is 48, the S-bit is bit-47.
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If the GPAW is 52, the S-bit is bit-51.
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@return Shared page bit mask
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**/
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UINT64
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EFIAPI
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TdSharedPageMask (
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VOID
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)
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{
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return 0;
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}
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/**
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This function gets the maximum number of Virtual CPUs that are usable for
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Td Guest.
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@return maximum Virtual CPUs number
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**/
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UINT32
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EFIAPI
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TdMaxVCpuNum (
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VOID
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)
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{
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return 0;
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}
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/**
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This function gets the number of Virtual CPUs that are usable for Td
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Guest.
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@return Virtual CPUs number
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**/
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UINT32
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EFIAPI
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TdVCpuNum (
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VOID
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)
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{
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return 0;
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}
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