mirror of https://github.com/acidanthera/audk.git
498 lines
9.1 KiB
C
498 lines
9.1 KiB
C
/** @file
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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 <Library/BaseLib.h>
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#include "BaseIoLibIntrinsicInternal.h"
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#include "IoLibTdx.h"
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/**
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Check if it is Tdx guest.
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@return TRUE It is Tdx guest
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@return FALSE It is not Tdx guest
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**/
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BOOLEAN
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EFIAPI
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IsTdxGuest (
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VOID
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)
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{
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return FALSE;
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}
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/**
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Reads an 8-bit I/O port.
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TDVMCALL_IO is invoked to read I/O port.
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@param Port The I/O port to read.
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@return The value read.
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**/
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UINT8
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EFIAPI
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TdIoRead8 (
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IN UINTN Port
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Reads a 16-bit I/O port.
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TDVMCALL_IO is invoked to write I/O port.
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@param Port The I/O port to read.
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@return The value read.
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**/
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UINT16
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EFIAPI
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TdIoRead16 (
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IN UINTN Port
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Reads a 32-bit I/O port.
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TDVMCALL_IO is invoked to read I/O port.
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@param Port The I/O port to read.
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@return The value read.
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**/
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UINT32
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EFIAPI
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TdIoRead32 (
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IN UINTN Port
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Writes an 8-bit I/O port.
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TDVMCALL_IO is invoked to write I/O port.
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@param Port The I/O port to write.
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@param Value The value to write to the I/O port.
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@return The value written the I/O port.
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**/
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UINT8
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EFIAPI
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TdIoWrite8 (
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IN UINTN Port,
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IN UINT8 Value
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Writes a 16-bit I/O port.
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TDVMCALL_IO is invoked to write I/O port.
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@param Port The I/O port to write.
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@param Value The value to write to the I/O port.
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@return The value written the I/O port.
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**/
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UINT16
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EFIAPI
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TdIoWrite16 (
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IN UINTN Port,
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IN UINT16 Value
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Writes a 32-bit I/O port.
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TDVMCALL_IO is invoked to write I/O port.
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@param Port The I/O port to write.
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@param Value The value to write to the I/O port.
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@return The value written the I/O port.
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**/
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UINT32
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EFIAPI
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TdIoWrite32 (
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IN UINTN Port,
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IN UINT32 Value
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Reads an 8-bit MMIO register.
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TDVMCALL_MMIO is invoked to read MMIO registers.
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@param Address The MMIO register to read.
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@return The value read.
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**/
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UINT8
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EFIAPI
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TdMmioRead8 (
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IN UINTN Address
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Writes an 8-bit MMIO register.
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TDVMCALL_MMIO is invoked to read write registers.
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@param Address The MMIO register to write.
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@param Value The value to write to the MMIO register.
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@return Value.
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**/
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UINT8
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EFIAPI
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TdMmioWrite8 (
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IN UINTN Address,
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IN UINT8 Val
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Reads a 16-bit MMIO register.
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TDVMCALL_MMIO is invoked to read MMIO registers.
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@param Address The MMIO register to read.
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@return The value read.
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**/
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UINT16
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EFIAPI
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TdMmioRead16 (
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IN UINTN Address
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Writes a 16-bit MMIO register.
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TDVMCALL_MMIO is invoked to write MMIO registers.
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@param Address The MMIO register to write.
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@param Value The value to write to the MMIO register.
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@return Value.
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**/
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UINT16
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EFIAPI
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TdMmioWrite16 (
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IN UINTN Address,
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IN UINT16 Val
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Reads a 32-bit MMIO register.
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TDVMCALL_MMIO is invoked to read MMIO registers.
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@param Address The MMIO register to read.
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@return The value read.
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**/
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UINT32
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EFIAPI
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TdMmioRead32 (
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IN UINTN Address
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Writes a 32-bit MMIO register.
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TDVMCALL_MMIO is invoked to write MMIO registers.
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@param Address The MMIO register to write.
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@param Value The value to write to the MMIO register.
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@return Value.
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**/
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UINT32
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EFIAPI
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TdMmioWrite32 (
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IN UINTN Address,
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IN UINT32 Val
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Reads a 64-bit MMIO register.
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TDVMCALL_MMIO is invoked to read MMIO registers.
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@param Address The MMIO register to read.
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@return The value read.
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**/
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UINT64
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EFIAPI
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TdMmioRead64 (
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IN UINTN Address
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Writes a 64-bit MMIO register.
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TDVMCALL_MMIO is invoked to write MMIO registers.
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@param Address The MMIO register to write.
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@param Value The value to write to the MMIO register.
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**/
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UINT64
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EFIAPI
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TdMmioWrite64 (
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IN UINTN Address,
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IN UINT64 Value
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Reads an 8-bit I/O port fifo into a block of memory.
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Reads the 8-bit I/O fifo port specified by Port.
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The port is read Count times, and the read data is
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stored in the provided Buffer.
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This function must guarantee that all I/O read and write operations are
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serialized.
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If 8-bit I/O port operations are not supported, then ASSERT().
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In TDX a serial of TdIoRead8 is invoked to read the I/O port fifo.
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@param Port The I/O port to read.
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@param Count The number of times to read I/O port.
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@param Buffer The buffer to store the read data into.
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**/
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VOID
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EFIAPI
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TdIoReadFifo8 (
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IN UINTN Port,
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IN UINTN Count,
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OUT VOID *Buffer
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)
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{
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ASSERT (FALSE);
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}
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/**
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Writes a block of memory into an 8-bit I/O port fifo.
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Writes the 8-bit I/O fifo port specified by Port.
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The port is written Count times, and the write data is
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retrieved from the provided Buffer.
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This function must guarantee that all I/O write and write operations are
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serialized.
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If 8-bit I/O port operations are not supported, then ASSERT().
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In TDX a serial of TdIoWrite8 is invoked to write data to the I/O port.
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@param Port The I/O port to write.
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@param Count The number of times to write I/O port.
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@param Buffer The buffer to retrieve the write data from.
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**/
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VOID
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EFIAPI
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TdIoWriteFifo8 (
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IN UINTN Port,
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IN UINTN Count,
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IN VOID *Buffer
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)
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{
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ASSERT (FALSE);
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}
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/**
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Reads a 16-bit I/O port fifo into a block of memory.
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Reads the 16-bit I/O fifo port specified by Port.
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The port is read Count times, and the read data is
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stored in the provided Buffer.
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This function must guarantee that all I/O read and write operations are
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serialized.
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If 16-bit I/O port operations are not supported, then ASSERT().
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In TDX a serial of TdIoRead16 is invoked to read data from the I/O port.
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@param Port The I/O port to read.
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@param Count The number of times to read I/O port.
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@param Buffer The buffer to store the read data into.
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**/
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VOID
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EFIAPI
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TdIoReadFifo16 (
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IN UINTN Port,
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IN UINTN Count,
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OUT VOID *Buffer
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)
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{
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ASSERT (FALSE);
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}
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/**
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Writes a block of memory into a 16-bit I/O port fifo.
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Writes the 16-bit I/O fifo port specified by Port.
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The port is written Count times, and the write data is
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retrieved from the provided Buffer.
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This function must guarantee that all I/O write and write operations are
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serialized.
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If 16-bit I/O port operations are not supported, then ASSERT().
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In TDX a serial of TdIoWrite16 is invoked to write data to the I/O port.
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@param Port The I/O port to write.
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@param Count The number of times to write I/O port.
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@param Buffer The buffer to retrieve the write data from.
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**/
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VOID
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EFIAPI
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TdIoWriteFifo16 (
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IN UINTN Port,
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IN UINTN Count,
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IN VOID *Buffer
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)
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{
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ASSERT (FALSE);
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}
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/**
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Reads a 32-bit I/O port fifo into a block of memory.
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Reads the 32-bit I/O fifo port specified by Port.
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The port is read Count times, and the read data is
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stored in the provided Buffer.
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This function must guarantee that all I/O read and write operations are
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serialized.
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If 32-bit I/O port operations are not supported, then ASSERT().
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In TDX a serial of TdIoRead32 is invoked to read data from the I/O port.
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@param Port The I/O port to read.
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@param Count The number of times to read I/O port.
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@param Buffer The buffer to store the read data into.
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**/
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VOID
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EFIAPI
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TdIoReadFifo32 (
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IN UINTN Port,
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IN UINTN Count,
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OUT VOID *Buffer
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)
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{
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ASSERT (FALSE);
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}
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/**
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Writes a block of memory into a 32-bit I/O port fifo.
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Writes the 32-bit I/O fifo port specified by Port.
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The port is written Count times, and the write data is
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retrieved from the provided Buffer.
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This function must guarantee that all I/O write and write operations are
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serialized.
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If 32-bit I/O port operations are not supported, then ASSERT().
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In TDX a serial of TdIoWrite32 is invoked to write data to the I/O port.
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@param Port The I/O port to write.
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@param Count The number of times to write I/O port.
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@param Buffer The buffer to retrieve the write data from.
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**/
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VOID
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EFIAPI
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TdIoWriteFifo32 (
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IN UINTN Port,
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IN UINTN Count,
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IN VOID *Buffer
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)
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{
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ASSERT (FALSE);
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}
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